EP1964616A2 - Paint spray gun with a base plate, replaceable paint head and assembly comprising a paint spray gun, a replaceable paint head and a paint container - Google Patents

Abstract

The paint spray pistol (1) has a base (2) with a replaceable paint conductor for carrying paint from a paint inlet of the spray paint pistol to a paint outlet of the pistol. The base has a main contact region for the paint conductor that is formed by an outer base surface. Independent claims are also included for the following: (A) a replaceable ink conductor (B) and an arrangement of a paint spray pistol, a replaceable paint conductor and a paint spray pistol beaker.

Description

The invention relates to a paint spray gun with a base body, to which a color guide for releasing a paint from a paint inlet of the paint spray gun to a paint outlet of the paint spray gun, a mobile Farbleiteinrichtung is detachably arranged. Likewise, the invention relates to an exchangeable Farbleiteinrichtung for attachment to a paint spray gun. In addition, the invention relates to an arrangement of a paint spray gun, a replaceable Farbleiteinrichtung and a paint spray gun cup.

In order to make cleaning of the paint spray gun, in particular ink-bearing areas in the paint spray gun superfluous after use of a paint spray gun, there are already facilities in practice which are removable from the actual paint spray gun and directed by means of which the paint from a paint spray gun cup to the nozzle of the paint spray gun become.

Such detachable Farbleiteinrichtungen are of their handling, however, very complex, so that they have not enforced to this day in the practical work of a painter.

It is therefore an object of the present invention to further develop paint spray guns with such separable Farbleiteinrichtungen and in particular these Farbleiteinrichtungen, so that their handling is considerably simplified in everyday use.

As a solution to the problem, the invention proposes a paint spray gun having a base body on which to direct a paint from a paint inlet the paint spray gun to a paint outlet of the paint spray gun an interchangeable Farbleiteinrichtung is detachably arranged before, which is characterized in that the main body has a main investment area for the interchangeable Farbleiteinrichtung, which is formed by an outer body surface.

By such an outer contact area, it is possible to fix the interchangeable Farbleiteinrichtung outside of the main body firmly but releasably, so that replacement of the Farbleiteinrichtung can be made very quickly and easily. The contact area provides on the main body a receiving area, in particular a main investment area, for the interchangeable Farbleiteinrichtung, at which the interchangeable Farbleiteinrichtung is firmly but releasably secured to the outside of the body. The replaceable Farbleiteinrichtung is therefore not introduced, for example, in a hole or in a cavity of the body to thereby be securely attached to the body. Therefore, the Farbleiteinrichtung can also quickly and easily attach to the body and take off after use just as quickly and easily. It is clear that the interchangeable Farbleiteinrichtung can also be in contact with other areas of the body when it is attached to the body. However, a secure attachment of the Farbleiteinrichtung is achieved on the main body substantially in said main investment area. To emphasize this clearly, the actual mounting area, in which the replaceable Farbleiteinrichtung is attached to the body, referred to as the main investment area.

The term "outer body surface" describes an outer and substantially outwardly directed surface of the body, which can serve as a particularly well-accessible main investment area for the interchangeable Farbleiteinrichtung. The main investment area at the The outer surface of the basic body is also preferably characterized in that at least one surface provided by it does not lie opposite another surface formed by it. The outer main body surface is thus not to be set equal to a main body surface, which is formed, for example, by an inner surface of a cavity or a bore in the main body. Such an inner surface forms an inner body surface.

The term "main body" describes that part of the paint spray gun which essentially forms the grip part of the paint spray gun, on which a receptacle or the main contact area for the replaceable ink guide is provided in the region of the ink nozzle.

Preferably, the interchangeable Farbleiteinrichtung is formed as a disposable component, but it can also be designed as a reusable component.

The object of the invention is also achieved independently of the other features of the invention of a paint spray gun with a body on which for directing a color from a paint inlet of the paint spray gun to a paint outlet of the paint spray gun a replaceable Farbleiteinrichtung is detachably arranged, and which thereby characterized in that the main body has a main investment area for the exchangeable Farbleiteinrichtung, which is different from a cavity, such as a bore in the base body of the paint spray gun.

If the main investment area for the interchangeable Farbleiteinrichtung not designed as a cavity, the interchangeable Farbleiteinrichtung must not be plugged into the body of a paint spray gun. Thus, the interchangeable Farbleiteinrichtung can be attached particularly quickly and easily outside of the body of the paint spray gun and taken off again as quickly.

The term "cavity" describes a receiving area, in particular a main investment area, for the exchangeable color guide, which is typically surrounded by an envelope, wherein the envelope can form an annularly closed inner surface of the cavity. In the cavity, the interchangeable Farbleiteinrichtung can be inserted substantially only from a main direction and stored on the inner surface of the cavity and thus in the body.

A further embodiment provides that the main investment area for the replaceable Farbleiteinrichtung is different from a cavity with a shell. Through the shell of the cavity is only partially accessible. If the main investment area differs from this, the exchangeable Farbleiteinrichtung can be attached to the body faster.

Same advantages arise with respect to an alternative embodiment in which the main investment area for the replaceable Farbleiteinrichtung is different from a cavity with a cylindrical shell. The cylindrical shell can in this case have almost any cross-sectional shapes.

Has the main investment area of the main body for the interchangeable Farbleiteinrichtung access, the access of the main investment area is different from an opening of a cavity, the main investment area or the contact area for the Farbleiteinrichtung is lighter, so uncomplicated and faster to reach, thereby attaching the interchangeable Farbleiteinrichtung can be made even more uncomplicated.

In a preferred alternative embodiment, the main investment area for the interchangeable Farbleiteinrichtung on access, the access of the main investment area is different from a closed-edged opening of a cavity behind it. Again, the replaceable Farbleiteinrichtung be better attached to the body.

Ideally, the access is designed so that the main system area for the replaceable color guide is accessible from more than one direction. So it is not necessary to lead the interchangeable Farbleiteinrichtung from a certain direction to the body.

Includes the main investment area investment limb, which are arranged at an opening angle to each other, the interchangeable Farbleiteinrichtung can be easily pre-centered while approaching the body at the same time.

By means of the main investment area, in particular with such investment limbs, advantageously an open recess is provided on the base body, to which the interchangeable color guide can be fastened quickly.

If a main investment area opening angle between the plant leg of more than 20 °, preferably provided by more than 45 °, already at the approach of the Farbleiteinrichtung a particularly high self-centering between the Farbleiteinrichtung and the plant area or the main plant area take place, which facilitates the assembly much.

A self-centering can advantageously already be achieved if the main investment area is concave.

If the main investment area alternatively curved convex, structurally also easy self-centering when approaching the interchangeable Farbleiteinrichtung be achieved on the body alternatively.

If, for example, a main bearing area opening angle of more than 180 ° is provided between two bearing limbs, in contrast to an opening angle of less than 180 °, a main bearing area can be realized in a structurally simple manner with partial contact surfaces pointing away from one another.

An approach of the interchangeable Farbleiteinrichtung to the body is further simplified if the main investment area is open on several pages.

As a further solution of the problem, the invention proposes a paint spray gun with a base body, on which a colorable ink guide is detachably arranged for directing a color from a paint inlet of the paint spray gun to a paint outlet of the paint spray gun, and the spray gun is characterized in that the body and / or or attachments of the body with the interchangeable Farbleiteinrichtung form a pressure medium leading portion of the paint spray gun and that the interchangeable Farbleiteinrichtung is a sealant by means of which the pressure medium leading area against the main body and / or the attachments of the body is compressed air-tight sealable.

Advantageously, the inking device seals when attaching to the main body of the paint spray gun the pressure medium leading areas of the paint spray gun itself directly from. As a result, additional sealing means, such as used in the prior art O-rings, superfluous, whereby the construction of such Farbleiteinrichtungen is substantially simplified. A paint spray gun, in which a pressure medium leading area between a body of the paint spray guns and an exchangeable mobile Farbleiteinrichtung is sealed by means of such O-rings is disclosed in the publication DE 43 02 911 A1 described. Although the paint is kept away from the body of the paint spray gun. However, the structure of the There described paint spray gun very complex and not practical designed.

The fact that the Farbleiteinrichtung when attaching to the Grundkö r-by the paint spray guns the pressure medium leading areas of the paint spray gun itself directly seals, in turn, increased reliability of the spray gun is given because additional sealant when inserting the Farbleiteinrichtung no longer slip or already in advance of Use damaged or completely lost. In the present case, it has been found that by means of the actual color guide, a sufficient tightness between the color guide and the main body or attachments of the main body can be realized.

Depending on the type of paint spray gun used, it is advantageous if the Farbleiteinrichtung is a sealant, by means of which the pressure medium leading area against the base body and / or the attachment parts of the body is pressure-free sealable.

The term "pressure-loss-free" in the present case describes that areas in which the color guide corresponds to the base body and / or the attachment of the main body are so dense that no pressure medium can escape from the pressure medium-carrying area there.

A variant embodiment provides that the ink-guiding device is the only sealing means by means of which the pressure medium-carrying region can be compressed in a compressed air-tight manner relative to the base body and / or the attachment parts of the base body. That a Farbleiteinrichtung serves as a sealant for a pressure medium leading portion of the paint spray gun, in particular as a single sealant of the pressure medium leading area, is also not known from the prior art. So also not from the above-mentioned and to be regarded as the closest prior art pamphlet DE 43 02 911 A1 , In particular, from the sectional view ( FIG. 3 of the DE 43 02 911 A1 ) of the nozzle part of the paint spray guns described there can be seen that the cylindrical body 11a of the nozzle 11 is inserted as a Farbleiteinrichtung in a paint spray gun body 3. Here, the cylindrical body 11a forms with the paint spray gun body 3, an annular cavity 19a, which is in communication with the compressed air supply line 4 via channels, not shown. By means of the annular cavity 19 a compressed air is provided at the nozzle head. In order to seal the annular cavity 19a, two O-rings r3 and r4 are provided between the cylindrical body 11a and the paint spray gun body. The O-ring r3 serves to seal the annular cavity 19a with respect to the interior of the paint spray gun. The O-ring r4 is provided for airtight completion of the annular cavity 19a to the outside. Without the two O-rings r3 and r4 as sealing means for a pressure medium leading portion of the paint spray gun, it would not be possible to seal the annular cavity 19a. The O-rings r3, r4 described here even complicate the use of a mobile color guide on a paint spray gun and also form a source of error because they are easily damaged as separate components, can be lost or slip during installation of the cylindrical body 11a. All these sources of error require that a paint spray gun could not be used properly.

Advantageously, the present invention is characterized by sealing means of a pressure medium leading portion of the paint spray gun, which are formed by the Farbleiteinrichtung. Thus, additional sealing means as used in the prior art can be dispensed with.

A preferred embodiment provides that sealing means of a pressure medium leading portion of the paint spray gun from a with the Color guide consist of identical material. As a result, sealing means can be provided in a structurally particularly simple manner.

A structurally secure seal between the main body of the paint spray gun and the Farbleiteinrichtung the paint spray gun can be advantageously ensured if the sealing means extend more than a Dichtmitteldurchmesser axially with respect to an axial displacement axis of a paint needle. If the sealing means of a pressure-medium-carrying region also extend in the direction of the axial displacement axis of the paint needle, then also non-curved contact surfaces between the exchangeable ink-conducting device and the main body of the paint spray gun can advantageously be sealed against one another.

It is also advantageous if the sealing means extend radially by more than one sealant diameter with respect to an axial displacement axis of a paint needle. Thus, curved areas can be structurally easily sealed around the axial displacement axis.

It is understood that the sealing means between the base body of the paint spray gun and the Farbleiteinrichtung can be arranged in different areas of the corresponding surfaces of the base body of the paint spray gun and the Farbleiteinrichtung the paint spray gun. A further preferred embodiment provides that the sealing means are arranged in a region of the base body and the Farbleiteinrichtung, which is arranged between the color inlet of the Farbleiteinrichtung and the color outlet of the Farbleiteinrichtung on a contact surface of the body and / or on a corresponding with the contact surface Gegenanlagefläche the Farbleiteinrichtung is.

As a result, the surface area to be sealed between the base body and the color guide can be advantageously reduced.

It is advantageous if the color guide and the base body are made of different materials. This makes it possible to achieve a particularly high sealing quality.

In this context, it is advantageous if the color guide is made of a softer material than the main body. The softer material of the color guide can adapt to the shape of the body particularly advantageous when inserted into the body of the paint spray gun. Thus, a particularly high sealing security is achieved.

So that the color guide is resistant to most colors, it is advantageous if the color guide is made of a solvent resistant material.

Suitable materials for producing the color guide are, for example, polypropylene, polyethylene, POM, HDPE and LDPE. It is understood that the present Farbleiteinrichtung can also be made of other than the aforementioned materials, as long as they allow a sufficiently good tightness compared to the main body or against attachments of the body.

A particularly preferred embodiment, the features of which are advantageous in particular even without the other features of the present invention, provides that sealing means, in particular for a compressed air leading portion of the paint spray gun having a Farbleiteinrichtung. If sealants on the paint spray gun are also used as a color guide, the paint spray gun can be built very compact.

In this context, it is also advantageous if at least one color guide is arranged within sealing means for a compressed air leading region of the paint spray gun. Through this Farbleitführung can be within a seal such color of a color inlet of the Spray gun are led to a paint outlet of the paint spray gun, without the color comes into contact with the body of the paint spray gun substantially. Such Farbleitführung can be introduced in many ways in sealants. For example, they can be drilled into the sealant. Or they are designed as an appropriate material recesses in an injection-molded component. The sealing means preferably differ from the base body and are instead compressed air sealingly against this base body.

Thus, the Farbleiteinrichtung can be made very good sealing in the region of its ink nozzle relative to a paint needle, it is advantageous if the Farbleiteinrichtung is made in the paint nozzle of a material particularly suitable for this purpose. In particular, in order to ensure a longer reliable operation, without the Farbleitleiteinrichtung on the paint needle critical leaks, this area may consist of an at least pressure and wear-resistant material than the other areas of Farbleiteinrichtung. Here, the Farbleiteinrichtung may be made for example of a two-component material. Or a harder ink jet area, for example of metal, is injected into the Farbleiteinrichtung during their production.

In order to fix the color guide on the main body of the paint spray gun particularly simple but releasable, it is advantageous if the paint spray gun has means for fixing the Farbleiteinrichtung on the main body of the paint spray gun, by means of which the Farbleiteinrichtung is firmly but releasably fixed to the body.

It is also advantageous if the fixing means comprise a first fixing device, which is arranged in the region of the paint outlet. Especially as between the main body and the Farbleiteinrichtung escape in the front region of the paint spray gun at the pressure medium leading areas air can, it is advantageous if there is also provided a fixing device.

Here, the area of the paint outlet is particularly compact, when the first fixing device consists essentially of a retaining ring, a first retaining ring receiving and a further retaining ring receiving.

A variant provided for this purpose provides that the first retaining ring receptacle is arranged on the base body. As a result, the retaining ring can be mechanically fastened to the base body.

In order to be able to clamp the color guide relative to the base body by means of the first fixing device, it is advantageous if the second Halteringaufnahme is arranged on the Farbleiteinrichtung.

Thus, it is possible with a single retaining ring and the two corresponding Halteringaufnahmen the main body of the paint spray gun and the Farbleiteinrichtung the paint spray gun to each other in a structurally particularly simple manner firmly but releasably to link together. Ideally, for this purpose, a retaining ring may be used, which is already used in conventional paint spray guns for attaching a color horn in the region of a paint nozzle.

In a particularly simple embodiment, it is advantageous if the first retaining ring receiving and the second retaining ring receiving together form a thread.

It is understood that instead of such a thread also different retaining ring receptacles can be provided. It should also be noted at this point that the features associated with the first fixing device also without the other features of the present invention advantageous are, since only these form a conventional paint spray gun advantageous.

Cumulatively or alternatively, it is advantageous if the fixing means comprise a further fixing device which is arranged in the region of the ink inlet of the ink guide. By means of the further fixing device at the paint inlet, the Farbleiteinrichtung can be additionally fixed but releasably fixed to the present base body, so that even higher loads can be safely absorbed by a filled paint cup on the paint spray gun.

For this purpose, it is advantageous if the further fixing device in the region of the ink inlet consists essentially of a clamping body with a first clamping element on the color guide and a second clamping element on the main body.

It is understood that such a clamping body can be designed in many ways in order to be suitable to brace the color guide and the body exclusively or additionally with each other. In the present case, the clamping body is provided in a particularly cost-effective manner if the clamping body comprises a paint spray gun cup. If it is possible to construct a paint spray gun cup such that with this the base body and the Farbleiteinrichtung can be clamped together, the clamping body is provided without additional components and thus structurally particularly simple means of the paint spray gun cup.

So that the clamping body can correspond to the color guide, it is advantageous if the first clamping element comprises an internal thread or an external thread, preferably at the color inlet of the color guide, to which the clamping body can be screwed. This allows the paint spray gun cup also attach in the usual way to the present paint spray gun, in particular to the Farbleiteinrichtung.

To present clamping forces between the body and the Farbleiteinrichtung by means of the paint spray gun cup structurally simple to apply, it is advantageous if the second clamping element comprises a support, preferably on the base body of the paint spray gun, on which the clamping body rests. If the clamping body rests on the base body, it is ensured that the paint spray gun cup is gradually braced against the support of the base body when being screwed into the intended thread of the paint inlet. As a result, clamping forces between the body and the Farbleiteinrichtung be applied and the Farbleiteinrichtung braced against the body.

In order to prevent the application of excessively high clamping forces in this area and to clamp the color guide relative to the base body with a substantially preselected clamping force, it is advantageous if the color guide, in particular a color inlet of the color guide, has a depth stop for a paint spray gun cup.

The structural complexity for fixing the Farbleiteinrichtung can be reduced if the Farbleiteinrichtung is firmly but releasably fixed only with components of a conventional spray head of a paint spray gun on the body of the paint spray gun.

Preferably, the present Farbleiteinrichtung is locked and fixed only by means of already known and used on conventional spray gun components, such as a retaining ring of a spray head or a spray gun cup, on the body of existing paint spray gun. This is not possible in the prior art. For example, according to the teaching of the document DE 43 02 911 A1 the cylindrical body 11a shown there by means of an additional Connecting bolt 20 fixed in or on the paint spray gun body 3. In the present case, such additional connecting bolts can be dispensed with. As a result, the handling of the present Farbleiteinrichtung is very simple.

A further fixing device of the present fixing is, for example structurally simply realized by the Farbleiteinrichtung at its end facing the color outlet end having a locking lug, which can be arranged in an undercut and / or groove of the main body latching. Preferably, the color guide engages by means of the latching nose snapping into the undercut on the main body of the paint spray gun. Thus, the Farbleiteinrichtung on the body is fixed but releasably at least pre-fixed.

In order to attach the replaceable Farbleiteinrichtung with the above-described fixing particularly easy to the main body of the paint spray gun, it is advantageous if the main body has a main investment area for the replaceable Farbleiteinrichtung, wherein the main investment area comprises a substantially planar contact surface.

A related embodiment provides that the planar contact surface extends in or parallel to a plane in which an axially displaceable main axis of a paint needle of the paint spray gun is arranged.

If a curved contact surface is provided cumulatively to the plane contact surface, it is advantageous if the essentially planar contact surface differs from the curved contact surface of the main contact region and the curved contact surface is concave. Due to the curved contact surface is advantageously a pre-centering of the main body of the Spray gun realized, so that when inserting the Farbleiteinrichtung in the paint spray gun, the Farbleiteinrichtung is already done something.

In order to achieve a first guidance of the Farbleiteinrichtung while arranging the Farbleiteinrichtung on the main body of the paint spray gun, but thereby not be too concentrated in the movement, it is advantageous if the curved contact surface extends along a semicircle extending radially to the axially displaceable main axis of the paint needle extends.

A structurally simple sealing of the pressure medium leading areas with respect to the plane and the curved contact surface is ensured when the planar contact surface and the curved contact surface merge into one another in a transition region which extends along the axially displaceable main axis.

In this context, an advantageous embodiment provides that the curved contact surface and the planar contact surface jointly provide the system region of the base body.

If the planar contact surface is subdivided by the curved contact surface into a first planar part contact surface and into a second planar part contact surface, the color guide can be adjusted particularly easily with respect to the main body of the spray gun and in particular advantageously seal against the main body in its side regions.

The Farbleiteinrichtung is particularly well performed when inserted into the base body, when the first plane part contact surface and the second plane Teilanlagefläche are employed at an angle to each other, which is smaller than 180 °. The smaller the angle is selected, the more likely and stronger the color guide is guided through the body. To the color guide in the present However, the basic angle must be equal to or greater than 90 °.

In order to align the ink inlet of the Farbleiteinrichtung in the direction of a spray gun cup, it is advantageous if the main investment area has an opening through which the color inlet of the Farbleiteinrichtung can be arranged.

If the opening penetrates the curved contact surface, the color guide and the body of the paint spray gun can be made symmetrical. In this way, sealing forces between the color guide and the body can be distributed evenly.

A further increase in the tightness is achieved when the main investment area comprises a receptacle for sealing means of the color guide. For example, sealing means or areas of the color-guiding device engage in receptacles provided on the main body for this purpose. If sealing means are provided on the main body of the paint spray gun, the receptacles corresponding thereto can also be provided on the exchangeable ink guide.

The Farbleiteinrichtung and the main body of the paint spray gun can be placed defined to each other, when the main investment area corresponds to a counter investment area of the Farbleiteinrichtung.

Thus, the main investment area of the body and the counter investment area can always be placed to each other reliable, it is advantageous if the counter investment area of the Farbleiteinrichtung is mirror-inverted to the main investment area of the Grundköpers.

Since the main investment area and the investment area described here conventional spray guns and / or Farbleiteinrichtungen already advantageous in itself, all the features described in connection with the main investment area and the counter investment area are also advantageous without the other features of the invention.

The object of the invention is also achieved by an exchangeable Farbleiteinrichtung for attaching to a paint spray gun, wherein the interchangeable Farbleiteinrichtung characterized by a counter-investment area for receiving a corresponding main investment area of a body of the paint spray gun. It is understood that this counter-investment area abuts particularly well on the main investment area of the base body, so that the tightness of the pressure-medium leading areas is reliably ensured.

Accordingly, an embodiment variant provides that the counter contact area of the color guide device has a plane counter-contact surface.

Cumulatively or alternatively, it is advantageous if the counter investment area has a curved contact surface, in particular if the main investment area described above also comprises a curved contact surface.

With regard to the concavely curved contact surface of the base body, it is advantageous if the curved counter-contact surface of the color guide is convex.

Thus, it is also advantageous in this context if the curved counter-contact surface extends along a semicircular arc which extends radially about an axially displaceable main axis of a paint needle. If the curved counter-contact surface extends along the axial displacement axis, a sealing surface can be formed over a large area between the ink-guiding device and the main body of the paint spray gun.

The color inlet of the exchangeable color guide device can correspond to an opening in the abutment region of the base body if the color inlet of the exchangeable color guide is arranged on the opposite abutment region, in particular on a curved counter abutment surface of the opposing abutment region.

A further embodiment variant provides that the color guide device and a paint spray gun cup form a single disposable component or a disposable component group of the paint spray gun. This ensures that the Farbleiteinrichtung and the spray gun cup as a single disposable component are particularly easy to handle.

Moreover, it is advantageous if the present Farbleiteinrichtung the paint spray gun is characterized by a pin on which a receptacle for a paint spray gun cup, in particular a receptacle for a gravity cup, is provided, wherein the pin with proper assembly of Farbleiteinrichtung on the body within a conventional Color channel of a paint spray gun is arranged. In the present case, the pin can advantageously be formed by the color inlet of the exchangeable color guide device.

The term "conventional color channel" is also understood in the present case to mean a modified color channel of a conventional paint spray gun. This modified color channel of a paint spray gun may, for example, be drilled out if the diameter of the pin of the color guide is greater than or equal to the inner diameter of the original color channel of the paint spray gun. Characterized in that the pin of the Farbleiteinrichtung is inserted within the color channel of a paint spray gun and thus arranged therein, the Farbleiteinrichtung is particularly reliable and comprehensively fixed to or in the main body of the paint spray gun. The pin of Farbleiteinrichtung can structurally very easy in the color channel of Color spray gun are introduced when the Farbleiteinrichtung is introduced from below into the paint spray gun or brought from below to a designated receptacle on the body and fixed. It is understood that not only gravity cup but also suction cup and Lackiermittelzuführschläuche or other Lackiermittelbereitstellungsseinrichtungen can be attached to the pin.

So that the color guide can be designed in particular as a disposable component, it is advantageous if the paint spray gun has an axially displaceable along an axial displacement axis color needle and along the axial displacement axis axially displaceable Farbnadelverlagerungsmittel, wherein the color needle and the Farbnadelverlagerungsmittel are interconnected. By means of such Farbnadelverlagerungsmittel the paint needle of the interchangeable Farbleiteinrichtung can be moved back and forth on the one hand and on the other hand, but firmly and releasably connected quickly and easily with an adjustment mechanism of the paint spray gun or the body of the paint spray gun.

An embodiment variant which is advantageous in this context provides a paint needle with a displacement means coupling part, which can be coupled with a paint needle coupling part of axial displacement means. By means of the displacement means coupling part and the color needle coupling part, an exchangeable color needle of an exchangeable color guide device can be coupled quickly and easily with color needle displacement means or uncoupled from color needle displacement means.

In the present case, the color needle displacement means can also be referred to as the rear color needle part and the interchangeable color needle as the front color needle part, so that there is a two-part color needle in the sense of the spray gun described here, wherein the rear color needle part and the front color needle part are coupled together by means of a coupling.

So that the displacement means coupling part and the color needle coupling part correspond structurally particularly simply to one another, it is advantageous if the displacement means coupling part is arranged on a color needle end facing away from the color needle tip.

In order to be able to grasp the displacement means coupling part advantageously, an embodiment variant in this respect provides that the displacement means coupling part of the paint needle has a diameter which is different from a color needle diameter. A gripping of the paint needle is particularly well feasible if the displacement means coupling part has a diameter which is greater than the color needle diameter.

Gripping and guiding of the existing paint needle is further simplified if the displacement means coupling part is rotationally symmetrical with respect to an axial displacement axis.

The color needle as well as the color guide can be made of a low-cost material, if the color needle is made of a material which is different from the material of the axial displacement means.

Does the paint needle in the direction of the axial displacement axis to a length which is smaller than the paint spray gun length in the direction and along this axial displacement axis, the paint needle can easily be replaced together with the Farbleiteinrichtung, without in this case the paint needle from the Farbleiteinrichtung removed or used separately.

It is understood that between the paint needle and the displacement means diverse couplings such as quick-release couplings, can be used. A structurally particularly simple and secure coupling is provided when the paint needle, in particular the displacement means coupling part, comprises a magnet or a magnetizable region.

Cumulatively or alternatively, it can be advantageously provided that the displacement means coupling part has a spring for a groove of the color needle coupling part of the axial displacement means coupling part. As a result, a particularly simple and inexpensive coupling is realized.

The handling with respect to a replacement of the present Farbleiteinrichtung is also simplified if all bearings, which completely surround the paint needle, are arranged on the Farbleiteinrichtung. If the paint needle is completely mounted on the color guide, this Farbleiteinrichtung including the paint needle can be advantageously replaced, since otherwise usual bearings on a body of a paint spray gun are not available.

In order to advantageously axially control the ink needle in the present case and to be able to move it during the painting of a component along the axial displacement axis, it is advantageous if means for axially displacing the paint needle along the axial displacement axis are provided on the main body of the paint spray gun.

Constructively, the present displacement means may be provided in a particularly compact design when an axial displacement center axis and an axial color needle displacement axis are aligned with each other.

Assign the axial displacement means on a Farbnadelkupplungsteil, which can be coupled with a displacement means coupling part of a paint needle, the Farbleiteinrichtung can be quickly and easily attached to the main body or removed from it.

In order to facilitate alignment of the axial displacement means relative to the paint needle or to make unnecessary, it is advantageous if the axial color needle displacement means are mounted on the main body of the paint spray gun.

In particular, in this context, it is advantageous if the axial color needle displacement means are mounted against rotation with respect to the axial displacement axis.

In the present case, it is therefore also advantageous if the axial color needle displacement means have a coupling device for gripping the paint needle. In the present case, the term "gripping" particularly encompasses any suitable form-fit and non-positive connection possibilities.

Due to the advantages explained here, the features in connection with the color needle and the color needle displacement means are advantageous even without the other features of the invention, since conventional paint spray guns are advantageously further formed with them.

In order to reduce machining forces which are required for actuating the paint spray gun, a further embodiment provides for a pneumatic muscle by means of which the moving components and / or component groups of the paint spray gun can be driven and / or moved at least in supportive fashion.

Also, a pneumatic muscle is advantageous in connection with a paint spray gun without the other features of the present invention, as this advantageously further develops conventional paint spray guns.

At the interchangeable Farbleiteinrichtung handle or finger recesses may be provided so that a gripping the interchangeable Farbleiteinrichtung is much easier. In particular, such a trough can the end of the exchangeable Farbleiteinrichtung facing away from the color outlet can be arranged.

The object of the invention is also achieved by an arrangement of a paint spray gun, a replaceable Farbleiteinrichtung and a paint spray gun cup, wherein the paint spray gun and the interchangeable Farbleiteinrichtung are clamped together by means of the paint spray gun cup.

Further advantages, objects and features of the present invention will be explained with reference to the following description of the appended drawing, in which exemplary paint spray guns are shown with different interchangeable Farbleiteinrichtungen.

Figur 1

eine schematische Seitenansicht einer Farbspritzpistole ohne eine auswechselbare Farbleiteinrichtung,

Figur 2

eine schematische Vorderansicht der Farbspritzpistole aus Figur 1 mit einer auswechselbaren Farbleiteinrichtung,

Figur 3

eine schematische Seitenansicht einer auswechselbaren Farbleiteinrichtung mit einer omega-förmig ausgebildeten Nase,

Figur 4

eine schematische Vorderansicht der auswechselbaren Farbleiteinrichtung aus der Figur 3,

Figur 5

eine schematische Seitenansicht einer Farbspritzpistole mit einer auswechselbaren Farbleiteinrichtung,

Figur 6

eine schematische Vorderansicht der Farbspritzpistole aus der Figur 5,

Figur 7

eine schematische Seitenansicht einer auswechselbaren Farbleiteinrichtung mit einer u-förmig nach unten ausgebildeten Nase,

Figur 8

eine schematische Vorderansicht der auswechselbaren Farbleiteinrichtung aus der Figur 7,

Figur 9

eine schematische Seitenansicht einer weiteren Farbspritzpistole mit einer auswechselbaren Farbleiteinrichtung,

Figur 10

eine schematische Vorderansicht der Farbspritzpistole aus der Figur 9,

Figur 11

eine schematische Seitenansicht einer auswechselbaren Farbleiteinrichtung mit einer u-förmig zur Seite ausgebildeten Nase,

Figur 12

eine schematische Vorderansicht der auswechselbaren Farbleiteinrichtung aus der Figur 11,

Figur 13

eine schematische Ansicht einer herkömmlichen, noch nicht modifizierten Farbspritzpistole, eines Prototypens einer auswechselbaren Farbleiteinrichtung sowie zweier Anbauteile der Farbspritzpistole,

Figur 14

schematisch einen Längsschnitt einer weiteren Farbspritzpistole mit einem Grundkörper und einer daran alternativ ausgebildeten auswechselbaren Farbleiteinrichtung, in welcher eine Farbnadel gelagert ist,

Figur 15

schematisch eine Ansicht auf einen Hauptanlagebereich des Grundkörpers der Farbspritzpistole aus der Figur 14, und

Figur 16

schematisch eine Ansicht auf einen Gegenanlagebereich der auswechselbaren Farbleiteinrichtung der Farbspritzpistole aus den Figuren 14 und 15.

It shows

FIG. 1

a schematic side view of a paint spray gun without a replaceable color guide,

FIG. 2

a schematic front view of the paint spray gun FIG. 1 with a replaceable color guide,

FIG. 3

a schematic side view of a replaceable Farbleiteinrichtung with an omega-shaped nose,

FIG. 4

a schematic front view of the interchangeable Farbleiteinrichtung from the FIG. 3 .

FIG. 5

a schematic side view of a paint spray gun with a replaceable Farbleiteinrichtung,

FIG. 6

a schematic front view of the paint spray gun from the FIG. 5 .

FIG. 7

a schematic side view of a replaceable Farbleiteinrichtung with a U-shaped down nose,

FIG. 8

a schematic front view of the interchangeable Farbleiteinrichtung from the FIG. 7 .

FIG. 9

a schematic side view of another paint spray gun with a replaceable Farbleiteinrichtung,

FIG. 10

a schematic front view of the paint spray gun from the FIG. 9 .

FIG. 11

a schematic side view of a replaceable Farbleiteinrichtung with a U-shaped to the side nose,

FIG. 12

a schematic front view of the interchangeable Farbleiteinrichtung from the FIG. 11 .

FIG. 13

a schematic view of a conventional, not yet modified paint spray gun, a prototype of a replaceable Farbleiteinrichtung and two attachments of the paint spray gun,

FIG. 14

FIG. 2 schematically a longitudinal section of a further paint spray gun with a base body and an interchangeable ink guide device formed thereon in which a paint needle is mounted, FIG.

FIG. 15

schematically a view of a main investment area of the main body of the paint spray gun from the FIG. 14 , and

FIG. 16

schematically a view of a counter investment area of the interchangeable Farbleiteinrichtung the paint spray gun from the Figures 14 and 15 ,

The in the Figures 1 and 2 shown paint spray gun 1 has a base body 2, which has a receptacle 4 for a mobile interchangeable Farbleiteinrichtung 5 in the front region 3. The replaceable Farbleiteinrichtung 5 is brought from below to the Lackiermittelaufnahme 4 and finally locked to the main body 2 of the paint spray gun 1.

The in the FIGS. 3 and 4 shown interchangeable Farbleiteinrichtung 10 has in its upper portion a pin 11 which is inserted into a conventional paint channel (not shown here) of a modified paint spray gun (not shown here). The Farbleiteinrichtung 10 has an omega-shaped nose 12 (shown hatched here), by means of which the interchangeable Farbleiteinrichtung 10 is engaged in the modified paint spray gun and thus fixed to the modified paint spray gun. The omega-shaped nose 12 is arranged in the front region 13, which is designed as a nozzle 14.

The nose 12 consists in the present case of the same material as other areas of the exchangeable Farbleiteinrichtung 10. Thus, the complete interchangeable Farbleiteinrichtung 10 is injected in this embodiment of the material polypropylene.

The nose 12 is at the same time a sealing means, by means of which a pressure medium leading area (not shown here) of the modified paint spray gun is sealed.

The in the FIGS. 5 and 6 shown paint replaceable Farbleiteinrichtung 21. The interchangeable Farbleiteinrichtung 21 includes a U-shaped downwardly formed nose 22, by means of which the interchangeable Farbleiteinrichtung 21 is clicked into the main body 23 of the paint spray gun 20. In the illustration after FIG. 6 one recognizes two compressed air channels 24 and 25, which are provided in the base body 23 of the paint spray gun 20.

The in the FIGS. 7 and 8 shown mobile Farbleiteinrichtung 30 comprises a pin 31 which is introduced in a color channel (not shown here) or a paint inlet of a modified paint spray gun (not shown here). By means of the pin 31 is the mobile interchangeable Farbleiteinrichtung 30 pre-centered and is stably supported on the modified paint spray gun.

The replaceable Farbleiteinrichtung 30 includes in the nozzle portion 32 a nose 33 which is U-shaped. The nose 33 is formed substantially in the manner of a downwardly directed U-shaped member.

The nose 33 clicks when attaching to the paint spray gun in a recording of a body of the paint spray gun, which was previously modified, and at the same time seals a pressure medium leading portion of the paint spray gun.

In the in the FIGS. 9 and 10 shown paint spray gun 40 is already an interchangeable Farbleiteinrichtung 41 clicked. For this purpose, the interchangeable Farbleiteinrichtung 41 was laterally clicked in accordance with arrow 42 in a receiving area 43 of the paint spray gun 40.

The in the FIGS. 11 and 12 shown interchangeable Farbleiteinrichtung 50 has a pin 51 which in a color channel (not shown here) of a modified paint spray gun (not shown here) is introduced. For clicking into a receiving area (not shown here) of a spray gun, the exchangeable Farbleiteinrichtung 50 comprises a U-shaped to the side shaped nose 52, which is arranged in the nozzle portion 53 of the interchangeable Farbleiteinrichtung 50.

The in the FIG. 13 shown conventional paint spray gun 60 is not yet modified in the area of a nozzle holder 61 for the inventive interchangeable Farbleiteinrichtung 62. The replaceable color guide 62 is presently not formed to scale. Much more it is a prototype, by means of which the mode of operation should be clarified. The interchangeable Farbleiteinrichtung 62 includes a pin 63 at the duly attached to the paint spray gun 60 Farbleiteinrichtung 62 is inserted in a color-leading channel 64 of the paint spray gun 60.

At the interchangeable Farbleiteinrichtung 62 a Farbdüse 65 a n-ordered. Behind the area of the ink nozzle 65, the exchangeable color guide 62 has a nose 66, by means of which the interchangeable Farbleiteinrichtung 62 is finally locked to a modified paint spray gun. In front of the nozzle 65, an air distributor ring 67 is placed.

The interchangeable Farbleiteinrichtung 62, the paint nozzle 65 and the air distribution ring 67 are locked by means of a ring nut 68 on the modified paint spray gun.

The locking means of the ring nut 68 is achieved by the ring nut 68 is screwed onto an external thread 69, which is indicated on the not yet modified spray gun 60, and an external thread 70 of the interchangeable Farbleiteinrichtung 62. As a result, the modified paint spray gun and the color guide 62 are additionally pressed against each other and thus locked together.

The in the FIG. 14 shown paint spray gun 100 has a base 101, which is substantially subdivided into a handle portion 102 and a Farbleiteinrichtungsaufnahmebereich 103.

At the Farbleiteinrichtungsaufnahmebereich 103 a replaceable Farbleiteinrichtung 104 is attached. In the present case, the exchangeable color guide 104 comprises a plastic body 105, which comprises a color nozzle area 106, a color needle area 107 and a color inlet area 108.

The ink jet area 106 forms the paint outlet nozzle 106A of the paint spray gun 100. As a result, the paint outlet nozzle 106A is part of the interchangeable Farbleiteinrichtung 104 and thus need not be cleaned after use advantageously no longer.

Within the ink needle area 107, an axially displaceable paint needle 109 of the paint spray gun 100 is mounted along an axial displacement axis 110 on the exchangeable ink guide 104. Thus, the interchangeable Farbleiteinrichtung 104 can be easily replaced with a preassembled paint needle 109, which is also designed here as a disposable component, the paint needle 109 is sufficiently safe stored on the interchangeable Farbleiteinrichtung 104 in a color needle 109 as a color needle bearing bushing 109A radially completely enclosing bearing. In the region of the bearing bush 110, the paint needle 109 has a bearing diameter which is greater than the diameter of the front paint needle area which faces the paint needle tip 111.

The control of the paint needle 109 in the use of the paint spray gun 100 with respect to an axial displacement along the axial displacement axis 110 is ensured by means of a Farbnadelverlagerungsmittels 112, which is mounted in the body 101 of the paint spray gun 100. The ink needle displacement means 112 is also moved in a known manner by a finger trigger mechanism (not shown here for clarity) along the axial displacement axis 110. So that the ink needle displacement means 112 can reliably move the paint needle 109 back and forth, the ink needle displacement means 112 has a paint needle coupling part 113 which can be coupled to a corresponding displacement means coupling part 114 of the paint needle 109. The displacement means coupling part 114 is formed in this embodiment as a radially encircling rotationally symmetrical elevation at the end of the paint needle 109 opposite the paint needle tip 111, so that it can easily engage the paint needle coupling part 113 of the paint needle displacement means 112 and be "gripped" by it. In order to the ink needle displacement means 112 against rotation mounted on the base 101 and thereby ensures trouble-free insertion of the Farbleiteinrichtung 104, moves in the present case, an upper portion of the Farbnadelkupplungsteils 113 in a provided in the main body 101 guide groove 115. In this embodiment, both the paint needle move 109th and the paint needle displacement means 112 along the axial displacement axis 110.

The ink inlet portion 108 is used to attach a spray gun cup or, as shown in this embodiment, for attaching a spray gun cup lid 116 directly to the interchangeable Farbleiteinrichtung 104. Thus, it is ensured that no color with the body 101 of the paint spray gun 100 comes into contact because the processed Color is passed from a spray gun cup starting up to the paint outlet nozzle 106A of the ink jet area 106 only within the interchangeable Farbleiteinrichtung 104.

In this embodiment, the interchangeable Farbleiteinrichtung 104 is also drawn by means of the spray gun cup lid 116 to the main body 101 of the paint spray gun 100 zoom and so fixed to this. This is done by the spray gun cup lid 116, while it is screwed into an inner thread 117 of the paint inlet 108, successively provided with a spray gun cup lid 116 depth stop 118 at a designated paragraph 119 of the body 101. By means of the depth stop 118 on the one hand over-rotation of the mutually corresponding threads of the spray gun cup lid 116 and the Farbleiteinrichtung 104 and on the other hand application to high contact forces between the interchangeable Farbleiteinrichtung 104 and the base 101 is prevented.

The spray gun cup lid 116 is in the present case a clamping body of a fixing device for fixing or clamping the exchangeable Farbleiteinrichtung 104 relative to the main body 101, wherein the internal thread 117 of the spray gun cup 116 a first clamping element and the shoulder 119 as a support a second clamping element of said fixing means there r-represents.

If bracing of the color guide 104 and the base 101 by means of a fixing device provided at the color inlet 108 and explained above is not desired in a simple embodiment variant, the fixation of the exchangeable color guide 104 can take place exclusively in the ink nozzle region 106.

This is done in this embodiment by means of a retaining ring 120, by means of which on the one hand a Luftverteilerring 121, a Lüftdüsenring 122 and an air cap 123 on the paint spray gun 100 and on the other hand the interchangeable Farbleiteinrichtung 104 on the main body 101 of the paint spray gun 100 are releasably fixed. In the present case, the air distributor ring 121 and the air nozzle ring 122 are loosely attached to the ink jet area 106 and fixed by means of the retaining ring 120. The air cap 123 is rotatably mounted in the retaining ring 120 by means of a retaining spring, not shown here in detail.

In order to be able to screw the retaining ring 120 onto a thread of the paint spray gun 100 as usual, a first threaded half 120A is attached to the main body 101 of the paint spray gun 100 and a second threaded half 1208 corresponding to the first threaded half 120A is attached to the exchangeable ink guide 104.

The air distributor ring 120 distributes process air fed through the main body 101, so that the process air is provided on the one hand via the air nozzle ring 122 and on the other hand via the air cap 123 at the paint outlet nozzle 106A can be. In the present case, the process air guidance within the basic body 101, in particular within the grip region 102, and its control by means of the finger-trigger mechanism, which is not described here, will not be discussed in more detail, since such process air ducts of the prior art arranged in the base body 101 by means of bores (not explicitly numbered here) are known.

In Farbleiteinrichtungsaufnahmebereich 103, however, a leading to the axial displacement axis 109 concentrically circulating process air leading portion 124 is advantageously formed on the one hand by the base 101 and the other by means of the interchangeable Farbleiteinrichtung 104.

The process air-guiding region 124 is thus divided into two, with a first half of the process air leading portion 124 of the main body 101 of the paint spray gun 100, in particular of the Farbleiteinrichtungsaufnahmebereich 103, and another half of the process air leading portion 124 formed by the interchangeable Farbleiteinrichtung 104 of the paint spray gun 100 becomes.

After the presentation of the FIG. 1 For example, the region 125 of the main body 101 which is of particular interest in this context has a hatch which differs from the rest of the main body 101, in order to make it clear in the present case that a special main abutment region 126 (see FIG FIG. 15 ) is provided. The main body portion 125 and the remaining main body 101 of the present paint spray gun 100 are made in one piece in this embodiment. However, they can also be divided into two parts in order to be able to attach, for example, differently designed color guide devices 104 to a single main body 101. For this purpose, only the area 125 having the main system area 126 would then have to be exchanged.

In order to seal the process air leading region 124, on the one hand, with respect to other attachments of the existing paint spray gun 100, such as with respect to the air distributor ring 120, the air distributor ring 120 comprises a concentric ring seal 127. Depending on the design of the exchangeable ink guide 104, the concentric ring seal 127 can be separated from a region of the exchangeable ink guide 104 be formed. Further ring sealings, for example, between the air nozzle ring 122 and the air distributor ring 120 or the paint nozzle region 106 can if necessary be provided for further securing the tightness. For the sake of clarity, an explicit illustration has been dispensed with in this case, since sealing regions with such annular seals of the prior art are well known.

On the other hand, in order to be able to seal off the process-air-conducting region 124 in the main contact area 126 without loss of pressure, a receiving groove 128 extending in the main contact area 126 is provided there, ie between the main body 101 and the exchangeable color guide 104 (see also FIG FIG. 15 ), in which, with proper use of the paint spray gun 100 in the present embodiment, a formed by the interchangeable Farbleiteinrichtung 104 seal 129 (see also FIG. 16 ). Depending on the shape of the seal 129 can be dispensed with a corresponding with their receiving groove 128. In the present embodiment, however, such a receiving groove 128 is provided.

The seal 129 is presently formed by a survey of the replaceable paint spray gun 100. By means of the seal 129 thus formed as an elevation, the interchangeable color guide 104 seals the region 124 leading the process air with respect to the main body 101 particularly well and reliably. Since the exchangeable Farbleiteinrichtung 104 consists of the plastic body 105, it can particularly well with their collection cling to the main body 101 of the paint spray gun 100, whereby the replaceable Farbleiteinrichtung 104 relative to the base 101 in particular inherent particularly good sealing properties.

In this embodiment, the seal 129 extends from the direction of the paint exit nozzle 106A on both sides of the ink inlet 108 and parallel to the axial displacement axis 110 until it is disposed behind the ink inlet 108 transverse to the axial displacement axis 110.

It is understood that in an alternative embodiment, the seal 129 can also extend transversely to the axial displacement axis 110 in front of the paint inlet 108, ie between the ink inlet 108 and the ink outlet opening 106A, so that on the one hand the space to be sealed is reduced and on the other hand the paint inlet 108 outside the space to be sealed lies. In this case, an additional annular seal 108A on the inner wall of the paint inlet 108 could advantageously be dispensed with. The ring seal 108A is provided in this embodiment in order to exclude any compressed air losses along the paint inlet 108 for reasons of safety.

Thus, the interchangeable Farbleiteinrichtung 104 can be releasably but securely and firmly attached to the body 101, the interchangeable Farbleiteinrichtung 104 includes a counter-investment area 130 which is formed mirror-inverted to the contact surface 126 of the body 101 substantially.

In this exemplary embodiment, the abutment surface 126 has a first planar partial abutment surface 131 and a second partial abutment surface 132, which together form a planar abutment surface of the main abutment region 126. By means of the planned partial abutment surfaces 131 and 132, the abutment abutments of the main abutment region 126 mentioned above can be provided in a structurally particularly simple manner. In the present case, the planar contact surface lies parallel to a plane 133, in which there is an axially displaceable main axis 110 of a color needle 109 of the paint spray gun 100 extends. After the presentation of the FIG. 15 this level 133 coincides with the paper plane.

The two planar abutment surfaces 131, 132 of the main abutment region 126, as viewed in the direction of the axial color needle displacement axis 110, are subdivided by a concavely curved abutment surface 134 of the abutment region 126. By means of the concave bearing surface 134, a structurally simple pre-centering for the replaceable ink guide 104 is provided on the main body 101.

A further and stronger pre-centering for the exchangeable color guide 104 may be provided on the base body 104, if the first plane Teilanlagefläche 131 and the second plane Teilanlagefläche 132 would be unilaterally out of the plane 133 so that they would be folded out of the paper plane out here. In such an embodiment, the two partial contact surfaces 131, 132 would be less than 180 ° to each other at an angle (not explicitly shown here). In the present case, however, both planar partial contact surfaces 131, 132 lie in the planes 133, the angle described above having a value of 180 °.

In the present case, the concavely curved contact surface 134 extends along a semicircular arc (not shown here) which radially surrounds the axial displacement axis 110. Thus, a concave pre-centering for the interchangeable Farbleiteinrichtung 104 is provided structurally simple on the base 101 101 in the direction of the axial displacement axis 110 extending concave.

The first planar contact surface 131 merges into the curved contact surface 134 in a first transition region 135, and the second planar contact surface 132 merges into the curved contact surface in a second transition region 136 134, wherein the two transition regions 135, 136 extend in the direction of the axial displacement axis 110.

So that the interchangeable ink guide 104 can be arranged with its counter-investment area 130 accurately and sealingly against the main investment area 126, the counter investment area 130 comprises a first plane Teilgegenanlagefläche 137 and a second plane Teilgegenanlagefläche 138, between which a convexly curved Gegenanlagefläche 139 is arranged. The first plane partial abutment surface 137 and the second plane partial abutment surface 138 together form the plane opposing abutment surface of the exchangeable ink guide 104.

Thus, the interchangeable Farbleiteinrichtung 104 with its color inlet 108, which projects as a "pin" inclined by the interchangeable Farbleiteinrichtung 104 in the direction of the axial displacement axis 110, can be attached to the main body 101 such that the paint inlet 108 in the body 101 at least a little way projects into the main investment area 126, preferably on the curved contact surface 134, an opening 140.

Claims (14)

Paint spray gun (100) a replaceable Farbleiteinrichtung (104) is releasably locatable with a base body (101) on which to conduct an ink from an ink inlet (108) of the paint spray gun (100) to a paint outlet (106A) of the paint spray gun (100), characterized in that the main body has a main contact area (126) for the exchangeable color guide (104), which is formed by an outer main body surface. Paint spray gun (100) according to claim 1, characterized in that the main investment area (126) of a cavity, such as a bore, in the base body (101) of the paint spray gun (100) is different. Paint spray gun (100) according to claim 1 or 2, characterized in that the main contact area (126) for the exchangeable Farbleiteinrichtung (104) is different from a cavity with a shell. Paint spray gun (100) according to one of claims 1 to 3, characterized in that the main investment area (126) of the main body (101) for the exchangeable Farbleiteinrichtung (104) has an access, wherein the access of the main investment area (126) from an opening of a behind lying cavity is different. Paint spray gun (100) according to one of claims 1 to 4, characterized in that the main investment area (126) comprises bearing limbs, which are arranged at an opening angle to each other. Paint spray gun (100) according to one of claims 1 to 5, characterized in that the main investment area (126) is concavely curved. Paint spray gun (100) according to one of claims 1 to 6, characterized in that the main investment area (126) is convex. Paint spray gun (100) according to one of claims 1 to 7, characterized in that the base body (101) and / or other attachments (121) of the base body (101) with the interchangeable Farbleiteinrichtung (104) a pressure medium leading portion (124) of the paint spray gun (100) form and the interchangeable Farbleiteinrichtung (104) is a sealing means (129), by means of which the pressure medium leading region (124) relative to the base body (101) and / or the other add-on parts (121) of the base body (101) is compressed air-tight sealable , Paint spray gun (100) according to one of claims 1 to 8, characterized in that the Farbleiteinrichtung (104) is a sealing means (129), by means of which a pressure medium leading portion (124) relative to the base body (101) and / or the other attachments ( 121) of the base body (101) can be sealed without loss of pressure. Paint spray gun (100) according to one of claims 1 to 9, characterized by sealing means (129) of a pressure medium leading portion (124) of the paint spray gun (100), which consist of a with the Farbleiteinrichtung (104) identical material. Paint spray gun (100) according to one of claims 1 to 10, characterized in that sealing means (129) for a pressure medium leading portion (124) of the paint spray gun (100) have a Farbleiteinrichtung (104). Paint spray gun (100) according to one of claims 1 to 11, characterized in that within a sealing means (129) for a pressure medium leading portion (124) of the paint spray gun (100) at least one Farbleitführung is arranged. Paint spray gun (100) according to one of claims 1 to 12, characterized in that the main investment area (126) has an opening (140) through which a paint inlet (108) of the Farbleiteinrichtung (104) can be arranged. Arrangement of a paint spray gun (100), an exchangeable Farbleiteinrichtung (104) and a paint spray gun cup, characterized in that the paint spray gun (100) and a replaceable Farbleiteinrichtung (104) are clamped together by means of a paint spray gun cup.

Images