EP0529478A1 - Razor - Google Patents

Razor Download PDF

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Publication number
EP0529478A1
EP0529478A1 EP92114063A EP92114063A EP0529478A1 EP 0529478 A1 EP0529478 A1 EP 0529478A1 EP 92114063 A EP92114063 A EP 92114063A EP 92114063 A EP92114063 A EP 92114063A EP 0529478 A1 EP0529478 A1 EP 0529478A1
Authority
EP
European Patent Office
Prior art keywords
electric shaver
shaver according
coupling element
pivot axis
knife
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92114063A
Other languages
German (de)
French (fr)
Other versions
EP0529478B1 (en
Inventor
Gebhard Braun
Reinhold Eichhorn
Wolfgang Franke
Helmut Dürr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Braun GmbH
Original Assignee
Braun GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Publication of EP0529478A1 publication Critical patent/EP0529478A1/en
Application granted granted Critical
Publication of EP0529478B1 publication Critical patent/EP0529478B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/048—Complete cutting head being movable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/10—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving two or more different types of reciprocating cutting elements, e.g. a pair of toothed shearing elements combined with a pair of perforated cutting elements or a combined toothed and perforated cutting assembly
    • B26B19/102—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving two or more different types of reciprocating cutting elements, e.g. a pair of toothed shearing elements combined with a pair of perforated cutting elements or a combined toothed and perforated cutting assembly with a secondary cutting unit being translated or slid into an operating position

Definitions

  • the invention relates to an electric shaver with a housing and a shaving head system which can be pivoted about a pivot axis relative to the housing and which consists of a shaving plane formed by at least one upper knife and at least one lower knife driven by a drive system and assigned to the upper knife.
  • a shaver of the type mentioned is known from DE-Cl 39 26 894.
  • the all-round closed shaving system consists of a shaving head frame pivotally mounted between two support arms about the pivot axis Z, to which an upper knife and a bottom plate are attached on the one hand and a lower knife arranged between the bottom plate and the upper knife, which are provided by the drive elements provided in the shaving head frame and on the bottom plate provided in the housing of the razor drive elements in an oscillating movement.
  • the invention has for its object to improve the shaving head system of a razor of the type mentioned.
  • this object is achieved in a shaving apparatus of the type mentioned in the introduction in that the lower knife is connected to the drive system via a coupling element which allows the pivoting movement about the pivot axis.
  • the direct coupling of the lower knife to the drive system which can be pivoted about the pivot axis Z, causes the shaving system to be divided into two subassemblies which can be separated from one another, namely a lower knife system which is directly assigned to the drive system located in the shaver housing and an upper knife system which is mounted in the shaving head frame so as to be pivotable about the pivot axis Z.
  • This separation of the upper knife system and the lower knife system results in a structural simplification and cost-effective manufacture of a shear system which can be pivoted about a pivot axis. Due to the pivotability of the lower knife and the coupling to the drive system, the shaving head frame is open on the housing side and can therefore be placed directly on the housing and detachably coupled to it. As a result, the base plate required in the known shaving head system and the drive elements provided between the base plate and the bottom knife and causing the bottom knife to oscillate are eliminated.
  • a recess running concentrically to the pivot axis Z is provided on the coupling element as a control cam for a pressure tappet which can be acted upon by a spring.
  • the recess which is designed as a control curve, in conjunction with the pressure plunger resting against the wall running concentrically to the swivel axis Z under spring pressure, guarantees a perfect swiveling movement of the lower knife about the swivel axis Z and a resilient contact of the lower knife with the upper knife. This measure optimizes the interaction of the cutting elements which are each pivotably mounted separately, such as the upper knife and the associated lower knife, which is directly driven by the drive system, with the result of an improved cutting result.
  • the coupling element can expediently be coupled to the drive system by means of a drive sleeve which engages in a U-shaped recess provided on the coupling element.
  • the recess is preferably provided in the U-shaped recess.
  • the pressure ram and the spring are expediently mounted within the drive sleeve.
  • the drive sleeve has a cylinder pot in which the pressure ram is mounted so as to be displaceable against the pressure of the spring.
  • an annular outer bead is provided on the outer jacket of the cylinder pot.
  • the outer bead is preferably provided with a shape corresponding to a spherical cutout.
  • a particularly simple and inexpensive and at any time releasable coupling of the lower knife to the drive system is achieved according to the invention in that webs are provided on the outer walls of the coupling element, the drive system having a coupling sleeve surrounding the drive sleeve and seated on a shoulder of the drive sleeve on which Fastening hooks and a paragraph are provided.
  • the drive sleeve is coupled to an oscillating bridge by way of fastening hooks encompassing the shoulder and the shoulder of the coupling sleeve.
  • the fastening hooks are expediently provided directly on the swing bridge or on a support plate fastened on a swing bridge.
  • the coupling element can be coupled to the drive system by means of the webs engaging behind the fastening hooks.
  • the webs are each provided with a control curve and a recess for the engagement of the fastening hooks.
  • the recess is preferably provided in the middle of the control curve.
  • locking cams are provided on the locking hooks for engaging in the recesses.
  • the pivoting movement of the lower knife about the pivot axis Z is expediently effected by the action of the pivotably mounted upper knife on the lower knife.
  • FIG. 1 shows an electric shaver with a housing 1 and a shaving head system 2 which can be pivoted about a pivot axis Z relative to the housing 1, and an on / off switch 4 which is displaceably mounted on the front side 3 and to which a displaceably mounted long hair cutter 5 is assigned.
  • the shaving head system 2 consists of a shaving head frame 6 arranged on the housing 1, an upper knife 9 pivotably mounted between the end walls 7, 8 about the pivot axis Z, and - see FIG. 2 - a lower knife 10 resting on the upper knife 9, which is connected via a coupling element 11 is coupled to a drive system 12 arranged in the housing 1 both in terms of drive and pivotable about the pivot axis Z, the pivoting movement of the lower knife 10 being effected by the action of the pivotably mounted upper knife 9 on the lower knife 10.
  • the shaving head frame 6 is removably attached to the housing 1 by means of a locking device.
  • Upper knife frame 42 and shaving head frame 6 are coupled to one another via their end walls 8 and 45 and 7 and 41 by means of bearing bolts 50, 51 passing through bearing bores 46, 47, 48, 49 and fastening plates 56 serving to fasten the bearing bolts 50, 51.
  • the center axis of the bearing bolts 50, 51 lies on the pivot axis Z.
  • the upper knife 9 has two curved shear surfaces 13, 14 which run parallel to the pivot axis Z.
  • the the arcuate shear surfaces 13 and 14 connecting tangential plane is an imaginary plane, which is referred to as the shear plane SE - see Fig. 1a.
  • the shear surfaces 13 and 14 are formed by two shaving foils 131, 141 that are arched in the upper knife frame 42.
  • Each of the two shaving foils 131 and 141 is fastened to a web 421 provided inside the upper knife frame 42 and extending parallel to the pivot axis Z, and is coupled to the opposite longitudinal side in each case with one of the two side walls 422, 423 of the upper knife frame 42 also running parallel to the pivot axis.
  • the lower knife 10 consists of two arcuate knife blocks 15, 16 which run parallel to one another and which are fastened together on the coupling element 11.
  • the opposite inner walls 17 and 18 are provided on the coupling element 11, the opposite inner walls 17 and 18 forming a U-shaped recess 19 and the two outer walls 20, 21 in each case are provided with an outwardly directed web 22, 23.
  • the U-shaped recess 19 there is a further U-shaped recess 24 with an arcuate course of the wall 241 which is adapted to the pivoting movement of the upper knife 9 about the pivot axis Z.
  • the drive system 12 consists of a swing bridge 27 arranged in the housing 1, driven by a motor 25 by means of an eccentric 26, and coupling elements arranged on the swing bridge 27, such as a support plate 100 with fastening hooks 28, 29, by means of which a drive sleeve 30 and a fastening hook 31, 32 having coupling sleeve 33 are attached to the support plate 100 via corresponding annular shoulders 34, 35.
  • the drive sleeve 30 faces the lower knife 10 facing end a cylinder pot 36 with an annular outer bead 37, which is provided with a shape corresponding to a spherical cutout KA - see FIG. 2a.
  • the outer bead 37 is in contact with the inner sides of the inner walls 17 and 18 and ensures, on the one hand, a transmission of the swinging movement of the swing bridge 27 to the lower knife 10 and a pivoting movement of the lower knife 10 on the drive sleeve 30.
  • a pressure ram 38 passing through the cylinder pot 36 is arranged in the cup-shaped drive sleeve 30.
  • a spring 40 acting on the pressure plunger 38 is arranged, by means of which the pressure plunger 38 is held in constant contact with the arcuate course of the wall 241 of the recess 24, which runs concentrically to the pivot axis Z, in the coupling element 11 in order to transmit the spring force of the spring 40 to the lower knife 10 for the purpose of resilient contact of the lower knife 10 resting on the upper knife 9.
  • the coupling sleeve 33 surrounding the drive sleeve 30 engages with the fastening hooks 31 and 32 over the webs 22 and 23 provided on the outer walls 20, 21 of the coupling element 11, with a predetermined flexibility of the fastening hooks 31 and 32 making coupling and / or handling easy and simple at all times Decoupling of the lower knife 10 is guaranteed by the drive system.
  • the fastening hooks 28, 29 are likewise designed to be flexible and thus simplify the assembly and disassembly of the pressure ram 38, spring 40, drive sleeve 30 and coupling sleeve 33 on the swing bridge 27.
  • FIG. 3 shows a section through a shaving head frame 6, upper knife frame 42, lower knife 10 and coupling element 11 and coupling sleeve 33 placed on the housing 1, the section running through the fastening hook 31 of the coupling sleeve 33 and the web 22 of the coupling element 11.
  • a locking cam 311 is provided on the locking hook 31 .
  • the locking cam 311 of the locking hook 31 is located at a distance A above the web 22 provided with a control cam 221 and a recess 222.
  • the distance A is established when the shaving head frame 6 is installed the housing 1 automatically, since the two knife blocks 15, 16 arranged on the coupling element 11 are moved in the vertical direction downward over the associated shaving foils 131, 141 during assembly against the pressure of the pressure ram 38 acted upon by the spring 40.
  • Fig. 3a shows the partial section through the shaver of FIG. 3 with a shaving head frame 6 removed from the housing 1.
  • the removal of the shaving head frame 6 from the housing 1 has the result that the pressure on the spring 40 against the wall 241 of the coupling element 11 Pressure plunger 38 moves upwards in the vertical direction V until, depending on the respective pivoting position of the lower knife 10, the locking cams 311 come to rest against the control cam 221 after the distance A has been covered. Thereafter, the control cam 221 slides along the locking cam 311 using the spring tension of the spring 40 until the locking cam 311 snaps into the recess 222 provided in the control cam 221.
  • the recess 222 is provided in the middle of the arc-shaped control cam 221, whereby after the latching cam 311 has snapped into the recess 222, the lower knife 10 assumes a centering position which is in and against the center of the predetermined pivoting range the clockwise pivotable lower knife 10 is.
  • a control curve with a prismatic control surface, the prism surfaces of which open into a recess can also be provided - not shown.
  • the web 23 of the coupling element 11 and the second fastening hook 32 provided on the coupling sleeve 33 are designed in accordance with the previously described web 22 and fastening hook 31 and are provided offset from it by 180 °.
  • the lower knife 10 with the coupling piece 11 and the pressure plunger 38 are moved downwards against the pressure of the spring 40 in the vertical direction via the upper knife 9, whereby the locking cams 311, the fastening hooks 31 and 32 and the recesses 222 formed in the control cams 221 are inevitably released, as shown in FIG. 3.
  • the lower knife 10, together with the upper knife 9, can freely execute a reciprocating pivoting movement about the pivot axis Z.
  • FIG. 4 shows an exploded view of the drive sleeve 30 and coupling sleeve 33 which can be coupled to one another.
  • two locking elements 352, 353 projecting from the outer jacket 351 are provided diametrically opposite one another on the outer jacket 351 of the shoulder 35 of the drive sleeve 30.
  • the inner wall of the coupling sleeve is designed step-like, whereby a shoulder 331 is formed.
  • locking elements are provided which can be brought into engagement with the locking elements 352, 353.
  • the lower knife 10 coupled to the coupling sleeve 33 can 90 ° are rotated, the further recesses 333 provided in the coupling sleeve 33 come into engagement with the latching elements 352 and 353 and lock the coupling sleeve 33 with the lower knife 10 in an orientation transverse to the pivot axis Z.
  • both the lower knife 10 and the upper housing side of the housing 1 can be cleaned in a simple manner.

Abstract

Electric razor with a casing (1) and a cutting head system (2) which can be pivoted about a pivot axis Z in relation to the casing and consists of a cutting head frame (6) of a cutting plane which is formed from at least one upper cutter (9) and has arc-shaped transitions to the longitudinal sides of the cutting head frame (6) and of at least one lower cutter (10) which is driven by a driving system (12) and is assigned to the upper cutter (9), the lower cutter (10) being coupled via a coupling element (11) to a drive system (12) which is arranged in the casing (1) so as to be pivotable about the pivot axis Z. <IMAGE>

Description

Die Erfindung bezieht sich auf einen elektrischen Rasierapparat mit einem Gehäuse und einem um eine Schwenkachse relativ zum Gehäuse schwenkbaren Scherkopfsystem, das aus einer von mindestens einem Obermesser gebildeten Scherebene und mindestens einem von einem Antriebssystem angetriebenen, dem Obermesser zugeordneten Untermesser besteht.The invention relates to an electric shaver with a housing and a shaving head system which can be pivoted about a pivot axis relative to the housing and which consists of a shaving plane formed by at least one upper knife and at least one lower knife driven by a drive system and assigned to the upper knife.

Ein Rasierapparat der eingangs genannten Art ist aus der DE-Cl 39 26 894 bekannt. Das allseits geschlossene Schersystem besteht aus einem zwischen zwei Tragarmen um die Schwenkachse Z schwenkbar gelagerten Scherkopfrahmen, an dem einerseits ein Obermesser und andererseits eine Bodenplatte befestigt sind sowie einem zwischen Bodenplatte und Obermesser angeordneten Untermesser, das mittels im Scherkopfrahmen und an der Bodenplatte vorgesehenen Antriebselementen von den im Gehäuse des Rasierapparates vorgesehenen Antriebselementen in eine oszillierende Bewegung versetzt wird.A shaver of the type mentioned is known from DE-Cl 39 26 894. The all-round closed shaving system consists of a shaving head frame pivotally mounted between two support arms about the pivot axis Z, to which an upper knife and a bottom plate are attached on the one hand and a lower knife arranged between the bottom plate and the upper knife, which are provided by the drive elements provided in the shaving head frame and on the bottom plate provided in the housing of the razor drive elements in an oscillating movement.

Der Erfindung liegt Aufgabe zugrunde, das Scherkopfsystem eines Rasierapparates der eingangs genannten Art zu verbessern.The invention has for its object to improve the shaving head system of a razor of the type mentioned.

Nach der Erfindung wird diese Aufgabe bei einem Rasierapparat der eingangs genannten Art dadurch gelöst, daß das Untermesser über ein die Schwenkbewegung um die Schwenkachse zulassendes Kupplungselement mit dem Antriebssystem verbunden ist. Die um die Schwenkachse Z schwenkbare und unmittelbare Koppelung des Untermessers mit dem Antriebssystem bewirkt eine Aufteilung des Schersystems in zwei voneinander trennbare Baugruppen, und zwar einem Untermessersystem, das dem im Gehäuse des Rasierapparates befindlichen Antriebssystem unmittelbar zugeordnet ist und einem Obermessersystem, das im Scherkopfrahmen um die Schwenkachse Z schwenkbar gelagert ist. Diese Trennung von Obermessersystem und Untermessersystem hat eine bauliche Vereinfachung und kostengünstige Herstellbarkeit eines um eine Schwenkachse schwenkbaren Schersystems zur Folge. Aufgrund der Schwenkbarkeit des Untermessers sowie der Koppelung mit dem Antriebssystem ist der Scherkopfrahmen gehäuseseitig offen ausgebildet und sonach direkt auf das Gehäuse aufsetzbar und mit diesem abnehmbar koppelbar. Demzufolge entfallen die bei dem bekannten Scherkopfsystem erforderliche Bodenplatte sowie die zwischen Bodenplatte und Untermesser vorgesehenen, das Untermesser in eine Schwingbewegung versetzende Antriebselemente.According to the invention, this object is achieved in a shaving apparatus of the type mentioned in the introduction in that the lower knife is connected to the drive system via a coupling element which allows the pivoting movement about the pivot axis. The direct coupling of the lower knife to the drive system, which can be pivoted about the pivot axis Z, causes the shaving system to be divided into two subassemblies which can be separated from one another, namely a lower knife system which is directly assigned to the drive system located in the shaver housing and an upper knife system which is mounted in the shaving head frame so as to be pivotable about the pivot axis Z. This separation of the upper knife system and the lower knife system results in a structural simplification and cost-effective manufacture of a shear system which can be pivoted about a pivot axis. Due to the pivotability of the lower knife and the coupling to the drive system, the shaving head frame is open on the housing side and can therefore be placed directly on the housing and detachably coupled to it. As a result, the base plate required in the known shaving head system and the drive elements provided between the base plate and the bottom knife and causing the bottom knife to oscillate are eliminated.

Die Übertragung der Schwingbewegung von Antriebssystem auf das Untermesser wird wesentlich vereinfacht, wodurch weniger Antriebsenergie benötigt wird.The transmission of the oscillating movement from the drive system to the lower knife is considerably simplified, as a result of which less drive energy is required.

In weiterer Ausgestaltung der Erfindung ist an dem Kupplungselement eine konzentrisch zur Schwenkachse Z verlaufende Aussparung als Steuerkurve für einen von einer Feder beaufschlagbaren Andruckstößel vorgesehen. Die als Steuerkurve ausgebildete Aussparung gewährleistet in Verbindung mit dem an der konzentrisch zur Schwenkachse Z verlaufenden Wand unter Federdruck anliegenden Andruckstößel eine einwandfreie Schwenkbewegung des Untermessers um die Schwenkachse Z sowie eine federnde Anlage des Untermessers an dem Obermesser. Durch diese Maßnahme wird das Zusammenwirken der jeweils getrennt schwenkbar gelagerten Schneidelemente, wie das Obermesser und das diesem zugeordnete, vom Antriebssystem direkt angetriebene Untermesser optimiert mit der Folge eines verbesserten Schneidergebnisses.In a further embodiment of the invention, a recess running concentrically to the pivot axis Z is provided on the coupling element as a control cam for a pressure tappet which can be acted upon by a spring. The recess, which is designed as a control curve, in conjunction with the pressure plunger resting against the wall running concentrically to the swivel axis Z under spring pressure, guarantees a perfect swiveling movement of the lower knife about the swivel axis Z and a resilient contact of the lower knife with the upper knife. This measure optimizes the interaction of the cutting elements which are each pivotably mounted separately, such as the upper knife and the associated lower knife, which is directly driven by the drive system, with the result of an improved cutting result.

Zweckmäßigerweise ist das Kupplungselement mit dem Antriebssystem mittels einer in eine am Kupplungselement vorgesehene, U-förmige Aussparung eingreifende Antriebshülse koppelbar.The coupling element can expediently be coupled to the drive system by means of a drive sleeve which engages in a U-shaped recess provided on the coupling element.

Vorzugsweise ist die Aussparung in der U-förmigen Aussparung vorgesehen.The recess is preferably provided in the U-shaped recess.

Zweckmäßigerweise sind der Andruckstößel und die Feder innerhalb der Antriebshülse gelagert.The pressure ram and the spring are expediently mounted within the drive sleeve.

Nach einer bevorzugten Ausführungsform der Erfindung weist die Antriebshülse einen Zylindertopf auf, in dem der Andruckstößel gegen den Druck der Feder verschiebbar gelagert ist. In weiterer Ausgestaltung dieser Ausführungsform ist an dem Außenmantel des Zylindertopfes ein ringförmiger Außenwulst vorgesehen. Vorzugsweise ist der Außenwulst mit einer einem Kugelausschnitt entsprechenden Formgebung versehen.According to a preferred embodiment of the invention, the drive sleeve has a cylinder pot in which the pressure ram is mounted so as to be displaceable against the pressure of the spring. In a further embodiment of this embodiment, an annular outer bead is provided on the outer jacket of the cylinder pot. The outer bead is preferably provided with a shape corresponding to a spherical cutout.

Eine besonders einfache und kostengünstige und jederzeit lösbare Koppelung des Untermessers mit dem Antriebssystem wird nach der Erfindung dadurch erreicht, daß an den Außenwänden des Kupplungselementes Stege vorgesehen sind, wobei das Antriebssystem eine die Antriebshülse umgebende, auf einem Absatz der Antriebshülse aufsitzenden Kupplungshülse aufweist, an der Befestigungshaken und ein Absatz vorgesehen sind.A particularly simple and inexpensive and at any time releasable coupling of the lower knife to the drive system is achieved according to the invention in that webs are provided on the outer walls of the coupling element, the drive system having a coupling sleeve surrounding the drive sleeve and seated on a shoulder of the drive sleeve on which Fastening hooks and a paragraph are provided.

Nach einer Ausführungsform der Erfindung ist die Antriebshülse über den Absatz und den Absatz der Kupplungshülse umgreifende Befestigungshaken mit einer Schwingbrücke gekoppelt.According to one embodiment of the invention, the drive sleeve is coupled to an oscillating bridge by way of fastening hooks encompassing the shoulder and the shoulder of the coupling sleeve.

Zweckmäßigerweise sind die Befestigungshaken unmittelbar an der Schwingbrücke oder an einer auf einer Schwingbrücke befestigten Tragplatte vorgesehen.The fastening hooks are expediently provided directly on the swing bridge or on a support plate fastened on a swing bridge.

Nach einer bevorzugten Ausführungsform der Erfindung ist das Kupplungselement mittels der die Befestigungshaken hintergreifenden Stege mit dem Antriebssystem koppelbar.According to a preferred embodiment of the invention, the coupling element can be coupled to the drive system by means of the webs engaging behind the fastening hooks.

Um die Montage bzw. Demontage des mit dem Gehäuse gekoppelten Scherkopfrahmens zu erleichtern, sind die Stege jeweils mit einer Steuerkurve und einer Ausnehmung für den Eingriff der Befestigungshaken versehen.In order to facilitate the assembly and disassembly of the shaving head frame coupled to the housing, the webs are each provided with a control curve and a recess for the engagement of the fastening hooks.

Vorzugsweise ist die Ausnehmung in der Mitte der Steuerkurve vorgesehen.The recess is preferably provided in the middle of the control curve.

Zweckmäßigerweise sind an den Rasthaken Rastnocken für den Eingriff in die Ausnehmungen vorgesehen.Expediently, locking cams are provided on the locking hooks for engaging in the recesses.

Zweckmäßigerweise erfolgt die Schwenkbewegung des Untermessers um die Schwenkachse Z durch Einwirkung des schwenkbar gelagerten Obermessers auf das Untermesser.The pivoting movement of the lower knife about the pivot axis Z is expediently effected by the action of the pivotably mounted upper knife on the lower knife.

In der nachfolgenden Beschreibung und den Zeichnungen, ist ein bevorzugtes Ausführungsbeispiel dargestellt. Es zeigen:

Fig. 1
einen Rasierapparat mit Scherkopfrahmen und schwenkbar gelagertem Obermesserrahmen in perspektivischer Darstellung;
Fig. 1a
ein Obermesser mit zwei parallel zueinander verlaufenden, bogenförmigen Scherflächen;
Fig. 2
einen Schnitt durch einen Scherkopfrahmen, Obermesserrahmen und Antriebssystem;
Fig. 2a
einen Schnitt durch einen Zylindertopf mit Kugelausschnitt KA;
Fig. 3
einen Schnitt durch ein Scherkopfsystem mit schwenkbar gelagertem Obermesserrahmen;
Fig. 3a
einen Schnitt nach Fig. 3 ohne Scherkopfrahmen;
Fig. 4
Explosionsdarstellung von Antriebshülse und Kupplungshülse.
In the following description and the drawings, a preferred embodiment is shown. Show it:
Fig. 1
a shaver with a shaving head frame and pivotally mounted upper knife frame in a perspective view;
Fig. 1a
an upper knife with two parallel, curved shear surfaces;
Fig. 2
a section through a shaving head frame, upper knife frame and drive system;
Fig. 2a
a section through a cylinder pot with ball cutout KA;
Fig. 3
a section through a shaving head system with pivotably mounted upper knife frame;
Fig. 3a
a section of Figure 3 without a shaving head frame.
Fig. 4
Exploded view of the drive sleeve and coupling sleeve.

Fig. 1 zeigt einen elektrischen Rasierapparat mit einem Gehäuse 1 und einem um eine Schwenkachse Z relativ zum Gehäuse 1 schwenkbaren Scherkopfsystem 2 sowie einen in der Frontseite 3 verschiebbar gelagerten Ein- und Ausschalter 4, dem ein verschiebbar gelagerter Langhaarschneider 5 zugeordnet ist.1 shows an electric shaver with a housing 1 and a shaving head system 2 which can be pivoted about a pivot axis Z relative to the housing 1, and an on / off switch 4 which is displaceably mounted on the front side 3 and to which a displaceably mounted long hair cutter 5 is assigned.

Das Scherkopfsystem 2 besteht aus einem auf dem Gehäuse 1 angeordneten Scherkopfrahmen 6, einem zwischen den Stirnseitenwänden 7, 8 um die Schwenkachse Z schwenkbar gelagerten Obermesser 9, sowie - siehe Fig. 2 - einem am Obermesser 9 anliegenden Untermesser 10, das über ein Kupplungselement 11 mit einem im Gehäuse 1 angeordneten Antriebssystem 12 sowohl antriebsmäßig als auch um die Schwenkachse Z schwenkbar gekoppelt ist, wobei die Schwenkbewegung des Untermessers 10 durch Einwirkung des schwenkbar gelagerten Obermessers 9 auf das Untermesser 10 bewirkt wird.The shaving head system 2 consists of a shaving head frame 6 arranged on the housing 1, an upper knife 9 pivotably mounted between the end walls 7, 8 about the pivot axis Z, and - see FIG. 2 - a lower knife 10 resting on the upper knife 9, which is connected via a coupling element 11 is coupled to a drive system 12 arranged in the housing 1 both in terms of drive and pivotable about the pivot axis Z, the pivoting movement of the lower knife 10 being effected by the action of the pivotably mounted upper knife 9 on the lower knife 10.

Der Scherkopfrahmen 6 ist auf dem Gehäuse 1 mittels einer Verriegelungseinrichtung abnehmbar befestigt. Obermesserrahmen 42 und Scherkopfrahmen 6 sind über deren Stirnseitenwände 8 und 45 sowie 7 und 41 mittels Lagerbohrungen 46, 47, 48, 49 durchsetzende Lagerbolzen 50, 51 sowie der Befestigung der Lagerbolzen 50, 51 dienenden Halteplatten 56 miteinander gekoppelt. Die Mittenachse der Lagerbolzen 50, 51 liegt auf der Schwenkachse Z.The shaving head frame 6 is removably attached to the housing 1 by means of a locking device. Upper knife frame 42 and shaving head frame 6 are coupled to one another via their end walls 8 and 45 and 7 and 41 by means of bearing bolts 50, 51 passing through bearing bores 46, 47, 48, 49 and fastening plates 56 serving to fasten the bearing bolts 50, 51. The center axis of the bearing bolts 50, 51 lies on the pivot axis Z.

Das Obermesser 9 weist zwei parallel zur Schwenkachse Z verlaufende, bogenförmig ausgebildete Scherflächen 13, 14 auf. Die die bogenförmig ausgebildeten Scherflächen 13 und 14 verbindende Tangentialebene ist eine gedachte Ebene, die als Scherebene SE bezeichnet ist - siehe Fig. 1a. Die Scherflächen 13 und 14 werden - wie aus Fig. 3 ersichtlich - durch zwei im Obermesserrahmen 42 gewölbt eingespannte Scherfolien 131, 141 gebildet. Jede der beiden Scherfolien 131 und 141 ist an einem innerhalb des Obermesserrahmens 42 vorgesehenen, parallel zur Schwenkachse Z verlaufenden Steg 421 befestigt und mit der jeweils entgegengesetzten Längsseite mit einer der beiden ebenfalls parallel zur Schwenkachse verlaufenden Seitenwände 422, 423 des Obermesserrahmens 42 gekoppelt.The upper knife 9 has two curved shear surfaces 13, 14 which run parallel to the pivot axis Z. The the arcuate shear surfaces 13 and 14 connecting tangential plane is an imaginary plane, which is referred to as the shear plane SE - see Fig. 1a. As can be seen from FIG. 3, the shear surfaces 13 and 14 are formed by two shaving foils 131, 141 that are arched in the upper knife frame 42. Each of the two shaving foils 131 and 141 is fastened to a web 421 provided inside the upper knife frame 42 and extending parallel to the pivot axis Z, and is coupled to the opposite longitudinal side in each case with one of the two side walls 422, 423 of the upper knife frame 42 also running parallel to the pivot axis.

Das Untermesser 10 besteht nach einer in Fig. 3 dargestellten Ausführungsform aus zwei parallel zueinander verlaufenden, bogenförmig ausgebildeten Messerblöcken 15, 16, die gemeinsam auf dem Kupplungselement 11 befestigt sind. Auf der dem Antriebssystem 12 zugewandten Seite sind - wie aus Fig. 2 ersichtlich - an dem Kupplungselement 11 vier parallel zueinander verlaufende Wände vorgesehen, wobei die sich gegenüberliegenden Innenwände 17 und 18 eine U-förmige Aussparung 19 bilden und die beiden Außenwände 20, 21 jeweils mit einem nach außen gerichteten Steg 22, 23 versehen sind. In der U-förmigen Aussparung 19 ist eine weitere U-förmige Aussparung 24 mit einem auf die Schwenkbewegung des Obermessers 9 um die Schwenkachse Z abgestimmten, bogenförmigen Verlauf der Wand 241 vorgesehen.According to an embodiment shown in FIG. 3, the lower knife 10 consists of two arcuate knife blocks 15, 16 which run parallel to one another and which are fastened together on the coupling element 11. On the side facing the drive system 12, as can be seen from FIG. 2, four walls running parallel to one another are provided on the coupling element 11, the opposite inner walls 17 and 18 forming a U-shaped recess 19 and the two outer walls 20, 21 in each case are provided with an outwardly directed web 22, 23. In the U-shaped recess 19 there is a further U-shaped recess 24 with an arcuate course of the wall 241 which is adapted to the pivoting movement of the upper knife 9 about the pivot axis Z.

Das Antriebssystem 12 besteht aus einer im Gehäuse 1 angeordneten, von einem Motor 25 mittels eines Exzenters 26 angetriebenen Schwingbrücke 27 sowie auf der Schwingbrücke 27 angeordneten Kupplungselementen, wie einer Tragplatte 100 mit Befestigungshaken 28, 29, mittels denen eine Antriebshülse 30 und eine Befestigungshaken 31, 32 aufweisende Kupplungshülse 33 über entsprechende ringförmige Absätze 34, 35 auf der Tragplatte 100 befestigt sind. Die Antriebshülse 30 weist an dem dem Untermesser 10 zugewandten Ende einen Zylindertopf 36 mit einem ringförmigen Außenwulst 37 auf, der mit einer einem Kugelausschnitt KA entsprechenden Formgebung versehen ist - siehe Fig. 2a. Im gekoppelten Zustand des Untermessers 10 mit der Antriebshülse 30 befindet sich der Außenwulst 37 in Anlage an den Innenseiten der Innenwände 17 und 18 und gewährleistet einerseits eine Übertragung der Schwingbewegung der Schwingbrücke 27 auf das Untermesser 10 sowie eine Schwenkbewegungen ermöglichende Lagerung des Untermessers 10 auf der Antriebshülse 30. In der topfförmig ausgebildeten Antriebshülse 30 ist ein den Zylindertopf 36 durchsetzender Andruckstößel 38 angeordnet. Zwischen der Oberseite 39 der Schwingbrücke 27 und dem Andruckstößel 38 ist eine auf den Andruckstößel 38 einwirkende Feder 40 angeordnet, mittels der der Andruckstößel 38 in ständiger Anlage an dem bogenförmigen Verlauf der Wand 241 der konzentrisch zur Schwenkachse Z verlaufenden Aussparung 24 im Kupplungselement 11 gehalten wird, um die Federkraft der Feder 40 auf das Untermesser 10 zum Zwecke einer federnden Anlage des am Obermesser 9 anliegenden Untermessers 10 zu Übertragen. Die die Antriebshülse 30 umgebende Kupplungshülse 33 greift mit den Befestigungshaken 31 und 32 über die an den Außenwänden 20, 21 des Kupplungselementes 11 vorgesehenen Stege 22 und 23, wobei mittels einer vorgegebenen Flexibilität der Befestigungshaken 31 und 32 eine jederzeit leicht und einfach zu handhabende Koppelung bzw. Entkoppelung des Untermessers 10, vom Antriebssystem gewährleistet ist. Die Befestigungshaken 28, 29 sind ebenfalls flexibel ausgebildet und vereinfachen somit die Montage sowie Demontage von Andruckstößel 38, Feder 40, Antriebshülse 30 und Kupplungshülse 33 auf der Schwingbrücke 27.The drive system 12 consists of a swing bridge 27 arranged in the housing 1, driven by a motor 25 by means of an eccentric 26, and coupling elements arranged on the swing bridge 27, such as a support plate 100 with fastening hooks 28, 29, by means of which a drive sleeve 30 and a fastening hook 31, 32 having coupling sleeve 33 are attached to the support plate 100 via corresponding annular shoulders 34, 35. The drive sleeve 30 faces the lower knife 10 facing end a cylinder pot 36 with an annular outer bead 37, which is provided with a shape corresponding to a spherical cutout KA - see FIG. 2a. In the coupled state of the lower knife 10 with the drive sleeve 30, the outer bead 37 is in contact with the inner sides of the inner walls 17 and 18 and ensures, on the one hand, a transmission of the swinging movement of the swing bridge 27 to the lower knife 10 and a pivoting movement of the lower knife 10 on the drive sleeve 30. In the cup-shaped drive sleeve 30, a pressure ram 38 passing through the cylinder pot 36 is arranged. Between the top 39 of the swing bridge 27 and the pressure plunger 38, a spring 40 acting on the pressure plunger 38 is arranged, by means of which the pressure plunger 38 is held in constant contact with the arcuate course of the wall 241 of the recess 24, which runs concentrically to the pivot axis Z, in the coupling element 11 in order to transmit the spring force of the spring 40 to the lower knife 10 for the purpose of resilient contact of the lower knife 10 resting on the upper knife 9. The coupling sleeve 33 surrounding the drive sleeve 30 engages with the fastening hooks 31 and 32 over the webs 22 and 23 provided on the outer walls 20, 21 of the coupling element 11, with a predetermined flexibility of the fastening hooks 31 and 32 making coupling and / or handling easy and simple at all times Decoupling of the lower knife 10 is guaranteed by the drive system. The fastening hooks 28, 29 are likewise designed to be flexible and thus simplify the assembly and disassembly of the pressure ram 38, spring 40, drive sleeve 30 and coupling sleeve 33 on the swing bridge 27.

Fig. 3 zeigt einen Schnitt durch einen auf dem Gehäuse 1 aufgesetzten Scherkopfrahmen 6, Obermesserrahmen 42, Untermesser 10 sowie Kupplungselement 11 und Kupplungshülse 33, wobei der Schnitt durch den Befestigungshaken 31 der Kupplungshülse 33 und den Steg 22 des Kupplungselementes 11 verläuft. An dem Rasthaken 31 ist ein Rastnocken 311 vorgesehen. Im montierten Zustand von Gehäuse 1, Scherkopfrahmen 6 und Obermesserrahmen 42 befindet sich der Rastnocken 311 des Rasthakens 31 in einem Abstand A oberhalb des mit einer Steuerkurve 221 und einer Ausnehmung 222 versehenen Steges 22. Der Abstand A stellt sich bei der Montage des Scherkopfrahmens 6 auf dem Gehäuse 1 automatisch ein, da die beiden auf dem Kupplungselement 11 angeordneten Messerblöcke 15, 16 über die zugeordneten Scherfolien 131, 141 bei der Montage gegen den Druck des von der Feder 40 beaufschlagten Andruckstößels 38 in vertikaler Richtung nach unten bewegt werden.3 shows a section through a shaving head frame 6, upper knife frame 42, lower knife 10 and coupling element 11 and coupling sleeve 33 placed on the housing 1, the section running through the fastening hook 31 of the coupling sleeve 33 and the web 22 of the coupling element 11. On the locking hook 31, a locking cam 311 is provided. In the assembled state of the housing 1, the shaving head frame 6 and the upper knife frame 42, the locking cam 311 of the locking hook 31 is located at a distance A above the web 22 provided with a control cam 221 and a recess 222. The distance A is established when the shaving head frame 6 is installed the housing 1 automatically, since the two knife blocks 15, 16 arranged on the coupling element 11 are moved in the vertical direction downward over the associated shaving foils 131, 141 during assembly against the pressure of the pressure ram 38 acted upon by the spring 40.

Fig. 3a zeigt den Teilschnitt durch den Rasierapparat nach Fig. 3 mit einem vom Gehäuse 1 abgenommenem Scherkopfrahmen 6. Die Abnahme des Scherkopfrahmens 6 vom Gehäuse 1 hat zur Folge, daß der unter dem Druck der Feder 40 an der Wand 241 des Kupplungselements 11 anliegende Andruckstößel 38 sich in vertikaler Richtung V nach oben bewegt, bis in Abhängigkeit von der jeweiligen Schwenkstellung des Untermessers 10 der Rastnocken 311 nach Zurücklegen des Abstandes A zur Anlage an die Steuerkurve 221 gelangt. Danach gleitet die Steuerkurve 221 unter Ausnutzung der Federspannung der Feder 40 an dem Rastnocken 311 entlang, bis der Rastnocken 311 in die in der Steuerkurve 221 vorgesehenen Ausnehmung 222 einrastet. In dem in Fig. 3a dargestellten Ausführungsbeispiel ist die Ausnehmung 222 in der Mitte der bogenförmig ausgebildeten Steuerkurve 221 vorgesehen, wodurch nach Einrastung des Rastnockens 311 in die Ausnehmung 222 das Untermesser 10 eine Zentrierstellung einnimmt, die in der Mitte des vorgegebenen Schwenkbereiches des in und entgegen dem Uhrzeigersinn hin und her schwenkbaren Untermessers 10 liegt. Anstelle einer bogenförmig ausgebildeten Steuerkurve 221 kann auch eine Steuerkurve mit einer prismatisch ausgebildeten Steuerfläche, deren Prismaflächen in eine Ausnehmung einmünden, vorgesehen werden - nicht dargestellt.Fig. 3a shows the partial section through the shaver of FIG. 3 with a shaving head frame 6 removed from the housing 1. The removal of the shaving head frame 6 from the housing 1 has the result that the pressure on the spring 40 against the wall 241 of the coupling element 11 Pressure plunger 38 moves upwards in the vertical direction V until, depending on the respective pivoting position of the lower knife 10, the locking cams 311 come to rest against the control cam 221 after the distance A has been covered. Thereafter, the control cam 221 slides along the locking cam 311 using the spring tension of the spring 40 until the locking cam 311 snaps into the recess 222 provided in the control cam 221. In the embodiment shown in Fig. 3a, the recess 222 is provided in the middle of the arc-shaped control cam 221, whereby after the latching cam 311 has snapped into the recess 222, the lower knife 10 assumes a centering position which is in and against the center of the predetermined pivoting range the clockwise pivotable lower knife 10 is. Instead of an arc-shaped control curve 221, a control curve with a prismatic control surface, the prism surfaces of which open into a recess, can also be provided - not shown.

Der Steg 23 des Kupplungselementes 11 sowie der an der Kupplungshülse 33 vorgesehene zweite Befestigungshaken 32 sind entsprechend dem zuvor beschriebenen Steg 22 und Befestigungshaken 31 ausge- bildet und um 180° versetzt zu diesem vorgesehen.The web 23 of the coupling element 11 and the second fastening hook 32 provided on the coupling sleeve 33 are designed in accordance with the previously described web 22 and fastening hook 31 and are provided offset from it by 180 °.

Die sich bei Abnahme des Scherkopfrahmens 6 vom Gehäuse 1 unter dem Druck der auf den Andruckstößel 38 einwirkenden Feder 40 zwangsläufig einstellende Überführung und Arretierung des Untermessers 10 in der dargestellten Zentrierstellung ermöglicht eine einfache und leichte Reinigung des mit dem Antriebssystem gekoppelten Untermessers 10 sowie eine leichte Montage des mit einem schwenkbar gelagerten Obermesser 9 ausgestalteten Scherkopfrahmen 6 auf dem Gehäuse 1.When the shaving head frame 6 is removed from the housing 1 under the pressure of the spring 40 acting on the pressure plunger 38, the transfer and locking of the lower knife 10 in the shown centering position inevitably enables simple and easy cleaning of the lower knife 10 coupled to the drive system and easy installation of the shaving head frame 6 configured with a pivotably mounted upper knife 9 on the housing 1.

Durch Aufsetzen des Scherkopfrahmens 6 auf das Gehäuse 1 werden über das Obermesser 9 das Untermesser 10 mit dem Kupplungsstück 11 sowie der Andruckstößel 38 gegen den Druck der Feder 40 in vertikaler Richtung nach unten bewegt, wobei die durch die Rastnocken 311, die Befestigungshaken 31 und 32 und die Ausnehmungen 222 in den Steuerkurven 221 gebildete Arretierung zwangsläufig aufgehoben wird, wie dies in Fig. 3 dargestellt ist. In diesem Zustand kann das Untermesser 10 zusammen mit dem Obermesser 9 ungehindert eine hin- und hergehende Schwenkbewegung um die Schwenkachse Z ausführen.By placing the shaving head frame 6 on the housing 1, the lower knife 10 with the coupling piece 11 and the pressure plunger 38 are moved downwards against the pressure of the spring 40 in the vertical direction via the upper knife 9, whereby the locking cams 311, the fastening hooks 31 and 32 and the recesses 222 formed in the control cams 221 are inevitably released, as shown in FIG. 3. In this state, the lower knife 10, together with the upper knife 9, can freely execute a reciprocating pivoting movement about the pivot axis Z.

Fig. 4 zeigt eine Explosionsdarstellung der miteinander koppelbaren Antriebshülse 30 und Kupplungshülse 33. An dem Außenmantel 351 des Absatzes 35 der Antriebshülse 30 sind beispielsweise zwei vom Außenmantel 351 abstehende Rastelemente 352, 353 diametral gegenüberliegend vorgesehen. Die Innenwand der Kupplungshülse ist stufenartig ausgebildet, wodurch ein Absatz 331 gebildet wird. In der Wand des Innenmantels 332 sind um 90° versetzt zueinander durch vier Ausnehmungen 333 gebildete Rastelemente vorgesehen, die mit den Rastelementen 352, 353 in Eingriff bringbar sind. Im gekoppelten Zustand von Antriebshülse 30 und Kupplungshülse 33 befinden sich zwei Ausnehmungen 333 in Eingriff mit den Rastelementen 352 und 353, wobei die Rasthaken 31 und 32 eine um 90° versetzte Stellung zu den Rastelementen 352 und 353 einnehmen und demzufolge parallel zur Schwenkachse Z verlaufend ausgerichtet sind - siehe Fig. 2. Dies bewirkt eine optimale Ausrichtung des Untermessers 10 parallel zur Schwenkachse Z und erleichtert die Montage sowie Demontage des Scherkopfrahmens 6 auf dem Gehäuse 1. Nach Abnahme des Scherkopfrahmens 6 vom Gehäuse 1 kann das mit der Kupplungshülse 33 gekoppelte Untermesser 10 um 90° gedreht werden, wobei die weiteren in der Kupplungshülse 33 vorgesehenen Ausnehmungen 333 in Eingriff mit den Rastelementen 352 und 353 gelangen und die Kupplungshülse 33 mit dem Untermesser 10 in einer quer zur Schwenkachse Z verlaufenden Ausrichtung verriegeln. In dieser Stellung des Untermessers 10 lassen sich sowohl das Untermesser 10 als auch die obere Gehäuseseite des Gehäuses 1 auf einfache Weise reinigen.4 shows an exploded view of the drive sleeve 30 and coupling sleeve 33 which can be coupled to one another. For example, two locking elements 352, 353 projecting from the outer jacket 351 are provided diametrically opposite one another on the outer jacket 351 of the shoulder 35 of the drive sleeve 30. The inner wall of the coupling sleeve is designed step-like, whereby a shoulder 331 is formed. In the wall of the inner jacket 332 are provided at 90 ° to each other by four recesses 333 locking elements are provided which can be brought into engagement with the locking elements 352, 353. in the When the drive sleeve 30 and the coupling sleeve 33 are coupled, there are two recesses 333 in engagement with the latching elements 352 and 353, the latching hooks 31 and 32 taking up a position offset by 90 ° to the latching elements 352 and 353 and consequently being aligned parallel to the pivot axis Z. - See Fig. 2. This results in an optimal alignment of the lower knife 10 parallel to the pivot axis Z and facilitates the assembly and disassembly of the shaving head frame 6 on the housing 1. After removing the shaving head frame 6 from the housing 1, the lower knife 10 coupled to the coupling sleeve 33 can 90 ° are rotated, the further recesses 333 provided in the coupling sleeve 33 come into engagement with the latching elements 352 and 353 and lock the coupling sleeve 33 with the lower knife 10 in an orientation transverse to the pivot axis Z. In this position of the lower knife 10, both the lower knife 10 and the upper housing side of the housing 1 can be cleaned in a simple manner.

Claims (17)

Elektrischer Rasierapparat mit einem Gehäuse (1) und einem um eine Schwenkachse (Z) relativ zum Gehäuse (1) schwenkbaren Scherkopfsystem (2), das aus einer von mindestens einem Obermesser (9) gebildeten Scherebene (SE) und mindestens einem von einem Antriebssystem (12) angetriebenen, dem Obermesser (9) zugeordneten Untermesser (10) besteht, dadurch gekennzeichnet, daß das Untermesser (10) über ein die Schwenkbewegung um die Schwenkachse (Z) zu lassendes Kupplungselement (11) unmittelbar mit dem Antriebssystem (12) verbunden ist.Electric shaver with a housing (1) and a shaving head system (2) which can be pivoted about a pivot axis (Z) relative to the housing (1) and which consists of a shaving plane (SE) formed by at least one upper knife (9) and at least one of a drive system ( 12) driven lower knife (10) assigned to the upper knife (9), characterized in that the lower knife (10) is directly connected to the drive system (12) via a coupling element (11) to be pivoted about the pivot axis (Z) . Elektrischer Rasierapparat nach Anspruch 1, dadurch gekennzeichnet, daß an dem Kupplungselement (11) eine konzentrisch zur Schwenkachse (Z) verlaufende Aussparung (24) als Steuerkurve für einen von einer Feder (40) beaufschlagbaren Andruckstößel (38) vorgesehen ist.An electric shaver according to claim 1, characterized in that a recess (24) extending concentrically to the pivot axis (Z) is provided on the coupling element (11) as a control cam for a pressure tappet (38) which can be acted upon by a spring (40). Elektrischer Rasierapparat nach Anspruch 1 oder 2, dadurch qekennzeichnet, daß das Kupplungselement (11) mit dem Antriebssystem (12) mittels einer in eine am Kupplungselement (11) vorgesehene, U-förmige Aussparung (19) eingreifende Antriebshülse (30) koppelbar ist.Electric shaver according to Claim 1 or 2, characterized in that the coupling element (11) can be coupled to the drive system (12) by means of a drive sleeve (30) engaging in a U-shaped recess (19) provided on the coupling element (11). Elektrischer Rasierapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Aussparung (24) in der U-förmigen Aussparung (19) vorgesehen ist.Electric shaver according to one of the preceding claims, characterized in that the recess (24) is provided in the U-shaped recess (19). Elektrischer Rasierapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Andruckstößel (38) und die Feder (40) innerhalb der Antriebshülse (30) gelagert sind.Electric shaver according to one of the preceding claims, characterized in that the pressure plunger (38) and the spring (40) are mounted within the drive sleeve (30). Elektrischer Rasierapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Antriebshülse (30) einen Zylindertopf (36) aufweist, in dem der Andruckstößel (38) gegen den Druck der Feder (40) verschiebbar gelagert ist.Electric shaver according to one of the preceding claims, characterized in that the drive sleeve (30) has a cylinder pot (36) in which the pressure plunger (38) is displaceably mounted against the pressure of the spring (40). Elektrischer Rasierapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß an dem Außenmantel des Zylindertopfes (36) ein ringförmiger Außenwulst (37) vorgesehen ist.Electric shaver according to one of the preceding claims, characterized in that an annular outer bead (37) is provided on the outer jacket of the cylinder pot (36). Elektrischer Rasierapparat nach Anspruch 7, dadurch gekennzeichnet, daß der Außenwulst (37) mit einer einem Kugelausschnitt (KA) entsprechenden Formgebung versehen ist.Electric shaver according to claim 7, characterized in that the outer bead (37) is provided with a shape corresponding to a spherical cutout (KA). Elektrischer Rasierapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß an den Außenwänden (20, 21) des Kupplungselementes (11) Stege (22, 23) vorgesehen sind.Electric shaver according to one of the preceding claims, characterized in that webs (22, 23) are provided on the outer walls (20, 21) of the coupling element (11). Elektrischer Rasierapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Antriebssystem (12) eine die Antriebshülse (30) umgebende, auf einem Absatz der Antriebshülse (30) aufsitzende Kupplungshülse (33) aufweist, an der Befestigungshaken (31, 32) und ein Absatz (331) vorgesehen sind.Electric shaver according to one of the preceding claims, characterized in that the drive system (12) has a coupling sleeve (33) surrounding the drive sleeve (30) and seated on a shoulder of the drive sleeve (30), on the fastening hooks (31, 32) and a Paragraph (331) are provided. Elektrischer Rasierapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Antriebshülse (30) über den Absatz (35) und den Absatz (34) der Kupplungshülse (33) umgreifende Befestigungshaken (28, 29) mit einer Schwingbrücke (27) gekoppelt ist.Electric shaver according to one of the preceding claims, characterized in that the drive sleeve (30) is coupled to an oscillating bridge (27) via fastening hooks (28, 29) encompassing the shoulder (35) and the shoulder (34) of the coupling sleeve (33). Elektrischer Rasierapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Befestigungshaken (28, 29) unmittelbar an der Schwingbrücke (27) oder an einer auf einer Schwingbrücke (27) befestigten Tragplatte (100) vorgesehen sind.Electric shaver according to one of the preceding claims, characterized in that the fastening hooks (28, 29) are provided directly on the swing bridge (27) or on a support plate (100) fastened on a swing bridge (27). Elektrischer Rasierapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Kupplungselement (11) mittels der die Befestigungshaken (31, 32) hintergreifenden Stege (22, 23) mit dem Antriebssystem (12) koppelbar ist.Electric shaver according to one of the preceding claims, characterized in that the coupling element (11) can be coupled to the drive system (12) by means of the webs (22, 23) engaging behind the fastening hooks (31, 32). Elektrischer Rasierapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Stege (22, 23) jeweils mit einer Steuerkurve (221) und einer Ausnehmung (222) für den Eingriff der Befestigungshaken (31, 32) versehen sind.Electric shaver according to one of the preceding claims, characterized in that the webs (22, 23) are each provided with a control cam (221) and a recess (222) for the engagement of the fastening hooks (31, 32). Elektrischer Rasierapparat nach Anspruch 14, dadurch gekennzeichnet, daß die Ausnehmung (222) in der Mitte der Steuerkurve (221) vorgesehen ist.Electric shaver according to claim 14, characterized in that the recess (222) is provided in the center of the control cam (221). Elektrischer Rasierapparat nach Anspruch 14, dadurch gekennzeichnet, daß an den Rasthaken (31, 32) Rastnocken (311) für den Eingriff in die Ausnehmungen (222) vorgesehen sind.Electric shaver according to Claim 14, characterized in that latching cams (311) are provided on the latching hooks (31, 32) for engaging in the recesses (222). Elektrischer Rasierapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schwenkbewegung des Untermessers (10) um die Schwenkachse (Z) durch Einwirkung des schwenkbar gelagerten Obermessers (9) auf das Untermesser (10) erfolgt.Electric shaver according to one of the preceding claims, characterized in that the pivoting movement of the lower knife (10) about the pivot axis (Z) is effected by the action of the pivotably mounted upper knife (9) on the lower knife (10).
EP92114063A 1991-08-26 1992-08-18 Razor Expired - Lifetime EP0529478B1 (en)

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DE4128219A DE4128219A1 (en) 1991-08-26 1991-08-26 SHAVER
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EP0529478B1 EP0529478B1 (en) 1995-10-25

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AT (1) ATE129453T1 (en)
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Publication number Priority date Publication date Assignee Title
DE4303972C1 (en) * 1993-02-11 1993-10-14 Braun Ag Electric dry razor with pivoted cutting head - has cutting head frame supported by pivot screws fitting in metal bearing elements in opposing carrier arms
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EP3546150B1 (en) 2018-03-27 2021-10-27 Braun GmbH Personal care device
EP3546148B1 (en) 2018-03-27 2022-01-12 Braun GmbH Personal care device
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Also Published As

Publication number Publication date
DE59204116D1 (en) 1995-11-30
ES2078614T3 (en) 1995-12-16
DE4128219A1 (en) 1993-03-04
DE4128219C2 (en) 1993-06-09
EP0529478B1 (en) 1995-10-25
JPH0815507B2 (en) 1996-02-21
JPH06210077A (en) 1994-08-02
HK92496A (en) 1996-06-07
US5257456A (en) 1993-11-02
ATE129453T1 (en) 1995-11-15

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