EP0734666A1 - Cushion support - Google Patents

Abstract

The support comprises spring elements arranged in a regular grid pattern and attached by their feet to the support base. The grid corresponds in size and shape to that of a supported cushion layer, e.g. a mattress which is carried on support plates on top of the spring bodies. The plates cover the cushion underface with gaps only between each plate and each grid crossing point includes one or more spring elements with spring bodies onto which connecting arms are integrally formed. In a design variation the connecting arms are non-permanently connected to the spring elements at each grid cross point. A use for the support is claimed in which the spring element grid and the mattress layer are sewn inside a cover with the side edges under the cover covered by cushioning strips.

Description

The invention relates to an upholstered underlay for upholstered surfaces of different shapes and sizes with spring elements which can be placed on a rigid or semi-rigid underlay and arranged in regular rows and columns, the feet of which can be fixed on the underlay and the heads of which support support plates on which a continuous, mattress-like support can be placed. especially for retrofitting beds.

For the upholstery of beds, it is known (for example from DE 36 12 603 A1, EP-A-0 031 132, DE 93 17 114 U1) to design the lying surface as a surface dissolved in partial surfaces. Each of these sub-areas has a support plate. The totality of these support plates forms the lying surface, which is provided with a (simple) support becomes. This type of upholstery offers significantly increased comfort compared to mattresses stored on a slatted frame. Such upholstery underlays, however, are always to be seen in connection with a mattress frame, so that only the dimensions of the beds can be operated, taking into account their rectangular shape. Retrofitting of unusual sizes or shapes deviating from the rectangle is excluded.

It is therefore the object of the invention against the background of the prior art to propose a generic cushion pad that is advantageously adaptable in terms of size and shape of the available cushion or lying surface and saves weight, which makes it easy to retrofit Existing upholstered surfaces, especially beds, are also allowed, and which can be manufactured economically and are simple and easy to install.

This object is achieved by the features of the main claim; advantageous further development and preferred embodiments describe the respective subclaims referring to it.

Advantageous in a first embodiment is a grid that can be placed on the base, can be made up of size and shape of the surface to be upholstered, and is composed of spring elements, wherein each of the spring elements has at least one spring body known per se, provided with a support plate, which, apart from the gaps between adjacent support plates, which cover the surface to be padded substantially without gaps, each crossing piece having at least one spring element, on which connecting straps are formed as arms, the spring element being provided with at least one spring body, which is arranged on this in the middle or in a regular arrangement on its arms is provided. In this first embodiment, the grid element is formed by an intersection piece, to which connecting straps are formed as arms. Alternatively, in a second embodiment, a grid made of spring elements, which can be placed on the base, can be brought to the size and shape of the surface to be padded, and each of the spring elements is provided has at least one spring body provided with a support plate which, apart from the gaps between adjacent support plates, covers the surface to be upholstered essentially without gaps, each crossing element having at least one spring element, to which connecting straps are releasably attached as arms, the spring element with at least a spring body is provided, which is provided on this in the middle or in a regular arrangement on the arms. In this second embodiment, the grid element is formed by crossing pieces, to which connecting straps are releasably attached as arms. In both embodiments, spring elements are provided, of which either one is provided centrally on the crossing piece or several are arranged in a regular arrangement on the arms; here it goes without saying that combinations with a central spring body and further spring bodies on the arms are also possible. The distances between the vertical axes of the spring elements are selected so that the support plates cover the padded surface almost completely, with a gap ensuring their mobility between adjacent edges of the support plates.

A further development of the second embodiment is given in that the feet of the spring bodies are designed as the butt joints between the crossing pieces and the connecting straps or bridging connectors bridging between two connecting straps. Through this design, the spring elements themselves take on the tab function and connect crossing pieces to one another, it being understood that tabs can also be used to bridge distances.

The crossing pieces and / or the connecting straps serve as receptacles for the spring elements. For this purpose, the spring elements are either integrally formed on the base plates of the crossing pieces or they are designed as spring elements, the foot parts of which have plug-in or clip elements which are inserted into corresponding openings in the crossing pieces. It goes without saying that the crossing pieces can also have plug-in elements, such as plug-in plugs, which are inserted into corresponding openings in the foot parts. The plug-in plugs or their hole receptacles are advantageously designed in such a way that a clamping effect occurs which fixes the plug-in plugs in the receiving hole.

The base plate is advantageously designed as a rectangular plate, in which two longitudinal side edges abutting one another at right angles have lugs with latching tongues and the two other longitudinal side edges also abutting each other at right angles have lugs with latching openings. The latching tongues and the latching openings are arranged in pairs symmetrically to the center line of the spring elements. In the case of the two other longitudinal side edges, at least one latching tongue or latching opening corresponding to one of these latching tongues or latching openings is provided, which latching tongues or latching openings are designed such that they can be fitted into one another and provided with cooperating latching means. This design allows the base plates to be joined together, the connections being stabilized symmetrically to the center line of the spring elements by the paired arrangement of the latching tongue approaches and the latching opening approaches.

Due to the snap-in connections, the base plates of the spring elements can easily be put together into (almost) any shape, particularly by using the embodiment with a reduced width (one snap-in tongue attachment or snap-in opening attachment on two mutually opposite side edges) to form cushion pads. The catch tabs are advantageously designed so that their material thickness "h" is half compared to the thickness "H" of the base plate. In contrast, the catch opening approaches have free spaces in the area of the overlap, the depth of which corresponds to the material thickness “h” of the catch tongues. This measure ensures that the thickness of the base plate is the same throughout the joint area; There are no beads at the joints.
In an alternative form, the base plate is rectangular and has an extension with a latching tongue on the narrow side edges and an extension with a latching opening on the opposite side, which are aligned in the center line of the spring element. The long side edges are on the other hand provided with two locking tongue approaches and two locking opening approaches, which are aligned symmetrically to the center. In another alternative form, the base plate is square. It has two latching tabs on two right-angled longitudinal side edges and two corresponding latching opening approaches on the two other opposite longitudinal side edges, each on either side of the center line. In these designs, the base plate is strictly symmetrical and allows additional base plates to be attached in one and in the other direction, whereby further rectangular partial surfaces - such as half or quarter panels - can be attached in order to be able to provide molds with upholstery that differ from the grid dimension deviate and / or are not delimited by straight, right-angled lines.

The latching means are advantageously designed as latching tongues with integrally formed latching lugs, each of which is arranged twice with the back against one another, the other latching means interacting therewith being designed as latching openings, the edges of which are engaged by the latching lugs pointing outwards here. In another embodiment, the locking lugs point inwards and cooperate with a web which delimits the locking opening outwards. In both arrangements, the two locking tongues of a locking connection act against one another, so that it is ensured that the locking seat is always defined.

These grid elements connected in this way can be placed on a flat surface without further attachment. With this design, a surface to be upholstered of any shape can be provided with a lattice structure formed in this way, the support plates covering almost the entire cushion surface, apart from the distances between the support plates and from edge regions. The underlay does not have to be a flat underlay; because of the flexibility of the lattice work thus formed from lattice elements, uneven surfaces - for example with a sloping position of the head / neck area or from the leg area - can be provided with this type of padding. Neither is there a need for self-contained Area, because this lattice can also bridge gaps.

The spring elements, which each of the lattice elements have, then give the possibility of using a mattress-like support, the spring properties of which - because of the spring properties of the spring bodies of the lattice elements - do not have to be made too great. While in the first embodiment the lattice elements are connected to one another to form a regular lattice, in the second embodiment the lattice elements which have been arranged in a regular manner are linked by means of connecting tabs which are inserted in such a way that the lattice is formed; these connecting straps can accordingly be molded onto the crossing pieces; but they can also be inserted as attachable tabs between the crossing pieces, so that the crossing pieces of both embodiments are connected to one another to form the grid.

According to an advantageous further development, the spring elements are fixed in the crossing area or along the connecting arms with holding elements molded onto the crossing element or the connecting arms. Holding elements are provided on a lower plate inserted from the back of the grille, which are guided through openings in the crossing piece or in the connecting arms, and which interact in a form-fitting manner with shapes of the foot. For this purpose, both crossing pieces and connecting arms are provided with openings arranged in a grid pattern, through which the holding elements for the spring elements can be passed. The formations are designed as centrally arranged, central openings which, in one embodiment, permit a form fit; in addition, their cross-section is approximately triangular, cruciform or the like.
In another development, a central round hole is provided in the central region of an intersection element, into which a pin, which is attached to the spring element, is inserted. This design allows the spring element used to be rotated; The central round hole is advantageously provided with at least one, preferably with two locking ramps, which partially surround the hole form inclined planes, and the holding element guided through this hole is designed in the form of a socket and is provided with a nose which overlaps the locking ramp / s. This training allows tensioning and locking. The nose is advantageously formed by a dowel pin which is carried out transversely to the axis of the pin, the projecting ends of which slide onto the inclined planes of the locking lamps and thus fasten the spring element to the base under tension.

To simplify production, at least the crossing pieces of the grid are designed as a plastic injection molded part; It is advantageous if the connecting straps are formed as crossing arms on the crossing pieces. Alternatively, the connecting puddles are attached to the crossing pieces as separate parts. For assembly, connectors are provided with which the joints of the crossing points and the connecting straps can be connected; it is advantageous to design the foot of the spring elements so that it can be used as a connector.

It is also advantageous if the connecting straps are injection-molded parts made of plastic; alternatively, connecting straps are designed as extrudable extrusions made of plastic. The latter design in particular allows a profile with undercuts for fixing correspondingly designed spring element feet.

In an advantageous development, the base plates with spring elements and their support plates are injection-molded in one piece from plastic; It is advantageous if a number (approximately 2, 3 or 4) of the interconnected base plates are injection molded in one piece. As a result of this one-piece production, which is based on the use of a plastic for the entire spring element, the spring elements thus obtained can be used directly, further work steps for completing these spring elements are superfluous.

In an alternative embodiment, the base plate and the spring element are optionally produced separately with a head plate, for which different plastics can be used. However, these spring elements must be completed with additional work steps. While the separate production of base plate and spring body offers the advantage that different plastics can be used, one-piece production allows economical production of larger units from which the latticework can be assembled. In the case of one-piece manufacture of multiple base plates, it goes without saying that the grid dimension specified by the tongues and the tongue receptacles is also observed here, so that single base plates or partial base plates can also be used, it being irrelevant whether these base plates are provided in one piece with the spring element with spring body and support plate, or whether they still have to be applied. This also allows the use of differently "hard" cushion elements in a latticework.

These grids formed in this way can now be adapted in a simple manner to the shape and size of a bed, a seating or lying area, for example in a mobile home or on board a sports boat. The grille is provided with spring elements that ultimately determine the cushioning properties of the underlay; Therefore, instead of complex mattresses, simple pads, such as simple foam pads, can be used with such documents, which do not have a sufficiently long lifespan, especially in the rough handling on board a boat, and their replacement - in contrast to the replacement of a mattress - are economically justified can. By cutting to size and shape, stitches are also "cut", which means that gaps can appear in the edge area, which can possibly be filled with half support plates (or support plates that are cut accordingly). However, the surface to be upholstered - apart from these gaps in the edge area - is covered over the entire area and the empty spaces directly at the edge do not interfere, they are covered by the overlay.

This type of design of a padded lying surface is particularly useful when the grid formed by the spring elements is sewn into a cover on its rigid or semi-rigid base with a more or less strong cushion pad. This results in a mattress-like overlay that resembles a futon and can easily be placed on smooth floors.

Fig. 01:

Eine Schema-Perspektive einer gepolsterten Liegefläche;

Fig. 02:

Eine Gittermasche, zusammengesetzt aus 4 Gitterelementen;

Fig. 03:

Gittermasche, gebildet aus 4 Gitterelement;

Fig. 04:

Einzelheit Armverbinder (Schnitt A-A Fig. 2);

Fig. 05:

Teilstück einer Polster-Unterlage, gebildet aus mit ihren Grundplatten zusammengesetzten Federelementen;

5a:

Federelement zusammengesetzt, mit "halben" Federelement, Aufsicht,

5b:

Federelement nach Fig. 5a, geschnitten gemäß Schnittlinie A-A,

5c:

Einzelheit "Z" der Verbindung der Stoßstelle;

Fig. 06:

Federelement zur Befestigung auf Kreuzungsstück oder Arm,

6a:

Aufsicht (Auflageteller teilweise ausgebrochen),

6b:

Frontansicht,

6c:

Seitansicht;

Fig. 07:

Grundplatte für Federelement-Befestigung,

7a:

Aufsicht,

7b:

Seitansicht,

7c:

Seitansicht` gegenüber Fig. 6b um 90° verdreht;

Fig. 08:

Federelement mit integrierter Fußbefestigung,

8a:

Federelement unmontiert, Seitansicht,

8b:

Fußplatte Federelement, Ansicht von unten.

Fig. 09:

In eine Hülle eingenähtes Polsterelement.

The invention is explained in more detail with reference to the exemplary embodiments illustrated in FIGS. 1 to 9; show

Fig. 01:

A schematic perspective of a padded bed surface;

Fig. 02:

A grid mesh composed of 4 grid elements;

Fig. 03:

Mesh made up of 4 mesh elements;

Fig. 04:

Detail arm connector (section AA Fig. 2);

Fig. 05:

Part of a cushion pad, formed from spring elements assembled with their base plates;

5a:

Spring element assembled, with "half" spring element, supervision,

5b:

5a, cut according to section line AA,

5c:

Detail "Z" of the connection of the joint;

Fig. 06:

Spring element for attachment to cross piece or arm,

6a:

Supervision (support plate partially broken out),

6b:

Front view,

6c:

Side view;

Fig. 07:

Base plate for spring element attachment,

7a:

At sight,

7b:

Side view,

7c:

Side view` rotated by 90 ° with respect to FIG. 6b;

Fig. 08:

Spring element with integrated foot mounting,

8a:

Spring element unmounted, side view,

8b:

Base plate spring element, bottom view.

Fig. 09:

Upholstery element sewn into a cover.

FIG. 1 shows a schematic perspective of a padded surface 1 in a frame 2, which is provided with a base 3. The grid, which is formed by the spring elements 20 with their spring bodies 21 provided with the support plates 29, is placed on this support 3, which is in itself arbitrary. These support plates 29 form the cushion surface, which is broken up into partial areas and on which the mattress 6 is placed. Each of the spring elements 20 has a spring body 21, the lower end of which stands as the foot 23 on the crossing piece 13 and the upper end of which forms the head, which is provided with a support plate 29. The foot of the spring elements 20 is connected in the illustration to the middle plate of the crossing piece 13, from which the grid is composed, so that the spring body 21 is held firmly on the crossing piece 13.

FIGS. 2 and 3 show two different designs of a grid: FIG. 2 shows a mesh of the grid 10 formed by four grid elements 12, and it goes without saying that this grid can be brought to the required size by attaching further grid elements 12 can, whereby a predetermined shape - if necessary by cutting to the edge grid elements 12 - can be maintained according to the requirements. The grid element 12 is formed by crossing pieces 13, on the sides of which arms 14 are attached, wherein in one embodiment crossing pieces 13 and arms 14 are made in one piece, preferably injection molded, and in another embodiment, the crossing pieces 13 and the arms 14 are produced and joined together ; the crossing pieces 13 are also advantageously injected here, while the arms 14 can be extruded. In an embodiment, these essentially double-T-shaped arms have a central web 14.1, on which side flanges 14.2 are formed on both sides.

In these embodiments, crossing pieces 13 and arms 14 form the grid elements 12, which are provided with central recesses 13.1 and 15.1 in the middle plate of the crossing pieces 13 and arms 14, respectively, into the lugs 24.1 on the foot plate 24 of the spring elements 20 (or guides a lower base plate 26) engage or through which the pins 26.1 (FIG. 7) provided with a securing pin 26.2 are guided, for fixing the grid elements 12 in their position, the shape of these recesses 13.1 being adapted to the shape of the engaging element. In the illustration of FIGS. 2 and 3, these recesses 13.1 and 15.1 are cross-shaped, accordingly the lugs 24.1 have a corresponding cross shape. In addition to these central recesses 13.1 and 15.1, further recesses 13.2 and 15.2 are provided, into which corresponding lugs 24.1 engage on the underside of the base plate 24, so that each of the grid elements 12 (or the spring elements 20 or 30) is fixed in the grid 10 in a manner secured against rotation . Because of the symmetrical design, it is possible to use the spring elements 20 (or 30) rotated by 90 °, so that the directions of the fold webs 22 (or 32) are crossed and so that adjacent spring elements 20 (or 30 ) is prevented when force is applied.

FIG. 3 shows an arrangement of 4 grid elements 12, in one mesh, the 4 crossing pieces 13 being connected with molded arms 14, and to which further meshes can be attached by means of the outwardly projecting half arms. For this purpose, these free half-arms are designed such that they can be positively connected to a corresponding end of a half-arm of a following grating element 12 or to one of the sides of a following crossing piece 13. Arm connectors 16 can also be used for connecting (as shown on the right half arm), as shown in FIG. It goes without saying that the multi-lattice elements produced in one piece can also have other configurations. These arm connectors 16 engage with corresponding lugs 16.1 in the central recesses 13.1 or 15.1 or 13.2 or 15.2, whereby they make the connection across the joint. It is advantageous if the spring element feet and the arm connectors have corresponding designs. In addition to the arm connectors, spring elements can then also be used in order to connect abutting arms of the grid element. It can then also be used to produce upholstery layers whose lattice underlay is one of the Dimensions of the support plate of the spring elements has a different periodicity. A possible embodiment of such a connection of the arms with the crossing pieces or the arms with one another is shown in FIG. 4 in a side view: Here, an arm connector 16 is inserted, which engages with the projecting nose 16.1 in the central recess 15.1, it being assumed that the length the arms 14 is such that the separation point just cuts such a cruciform recess 15.1. The arm connector 16 has further lugs 16.2 which engage in the recesses 15.2 and produce a lock there. One of the arms 14 can also be the connection end on one of the crossing pieces 13.

A further embodiment of the grating element 12 is shown in FIG. 5: Here, the crossing pieces are formed directly by the base plates 36 of the spring elements 30 (the spring bodies which are connected to the feet of the spring bodies 31 being merely indicated in the illustration in FIG. 5a). These base plates 36 are connected to the feet 33 of the spring bodies, which are shown here as two mutually opposing fold webs 32, formed by outer shafts 32.1 and inner shafts 32.2, between which extend tension members 32.3 designed to adapt to the spring characteristic. The head 37 of the spring body 31 is provided with the support plate 39, on which the mattress-like cushion cover (not shown here) is placed.

The base plates 36 are either square or rectangular. In the case of a square design, two longitudinal side edges abutting one another at right angles are provided with lugs 36.1, which have latching tongues 36.2, and the two other longitudinal side edges, also abutting one another at right angles, are provided with lugs 36.5, which have latching openings 36.6, the latching tongue lugs 36.1 and the latching opening lugs 36.5 are aligned. In the rectangular base plate 36 'there are longitudinal side edges and narrow side edges, the two opposite longitudinal side edges each having two detent tabs 36.1, each symmetrical to the center line of the spring body 31, and the narrow side edges each have a catch opening extension 36.1 in the center line of the spring body 31, which are provided with the catch tongues 36.2 or with the catch openings 36.6, which are aligned with one another. Analogously, this also applies to the narrow side edges, which are each provided with a locking tongue extension 36.1 and a locking opening extension 36.5, which in turn are aligned. Since the rectangular base plates 36 ', measured with the shoulders 36.1, are just half the width like the square base plates 36, they can be combined in a simple manner.

The latching connection between the base plates 36 and 36 'is produced by the latching tongues 36.2, which are pressed over the latching web 36.7 formed by the latching opening 36.6, the latching lugs 36.3 being pressed apart during insertion and the latching tongues 36.2 being elastically deformed; due to this elastic deformation, these latching tongues spring back after insertion, the latching lugs 36.3 engaging behind the outer edges of the latching web 36.7. The lugs 36.1 are designed with latching tongues 36.2 such that their height "h" corresponds to half the height "H" of the base plate 36, while the lugs 36.1 provided with the latching openings 36.6 are so excluded in the region of the overlap that the height of the Free space 36.5 corresponds to the height "h" of the lugs 36.1 with locking tongues 36.2.

6 shows a spring element 20 in a top view with the head plate partially broken open (FIG. 6a), in a front view (FIG. 6b) and in a side view (FIG. 6c). The spring element 20 consists of a spring body 21, represented in the exemplary embodiment by two fold webs 22 arranged opposite one another with outer shafts 22.1 and inner shafts 22.2. To stabilize and adapt the spring characteristic, tension members 22.3 are provided which connect at least some of the inner shafts 22.2 to one another; 5, although both inner shafts 22.2 are connected to such tension members 22.3 in the exemplary embodiment according to FIGS. 5, not all inner shafts 22.2 have to be connected to the opposite ones by such tension members 22.3; the number of which depends on the desired hardness of the spring element 20. The base plate 24 is provided with the center hole 25, through which the pin 26.1 of the base plate 26 (Fig. 6a, 6b, 6c) is guided; Peripherally, two diametrically opposed ramps 25.1 are provided which cooperate with the locking pins 26.2 and have high ends 25.2 in which the locking pins 26.2 snap to secure their position. On the side of the base plate 24 facing the grille, lugs 24.3 are provided, which engage in corresponding recesses 13.2 or 15.2 in the crossing pieces 13 or the arms 14 of a grating element 12 composed of these crossing pieces 13 and arms 14 and thus secure the position of the base plate 24 . The head of the spring element 20 is formed by the support plate 29, which is stiffened with ribbing 29.1, the position of the ribs determining the degree of stiffening. It goes without saying that instead of a base plate 26, the middle plate of an intersection piece 13 or an arm 14 can be provided.

Figures 7a, 7b and 7c show the execution of a base plate 26 in supervision (Fig. 7a), as well as in two side views rotated by 90 ° (Fig. 7b and 7c), this in the same way for the center piece of an intersection piece 13 or for an arm 14 applies. With this design, there is a possibility of simply fixing the spring elements 20 so that they are fastened in the desired position in the intersection. This base plate 26, which is shaped corresponding to the base plate 24 of the spring element 20, engages with its pin 26.1 through the center hole 25 of the base plate 24 of the spring elements and centers them; with a rotation of the spring elements 20 by approximately 90 °, the locking pins 26.2 are brought into their clamping position, so that the spring elements are fixed in the grid by means of these connecting elements.

FIGS. 8a and 8b show a further type of fastening of the spring elements 20 in the grid, which is particularly important when the grids composed of crossing pieces 13 and arms 14 (see FIGS. 2, 3) are used. The side of the base plate 24 of the spring element 20 facing the grating is provided with one with the central recesses 13.1 of the crossing piece 13 or 15.1 of the arms 14 cooperating central guide provided, which can be inserted in a form-fitting manner in these recesses. With the other recesses 13.2 of the crossing piece 13 or 15.2 of the arms cooperating locking lugs 24.2 secure the spring element 20 used.

FIG. 9 finally shows, in a representation corresponding to the representation in FIG. 1, a cushion pad 1 'sewn into a (partially cut open) cover 7. The cushion elements 10 joined together to form the latticework with the spring elements 30 with the spring bodies 31 form here the load-bearing part on which the mattress-like support 6 is placed. The side edges are advantageously reinforced by support strips 8 made of a foam material, the height of which corresponds to the height of the support plate 39 without load. As a result, the spring elements 30 are held in their position and cannot fold outwards. This cushion pad 1 'thus formed is easy to handle in one piece, it is still so flexible in itself that it can be transported over narrow aisles, stairs or companionways and then placed on the intended lying surface.

Claims (12)

Upholstery underlay for upholstered surfaces of different shapes and sizes with spring elements that can be placed on rigid or semi-rigid underlay, arranged in regular rows and columns, the feet of which can be attached to the underlay and the heads of which have support plates on which a continuous, mattress-like overlay can be placed, especially for retrofitting Beds, characterized by a grid (10) made of spring elements (20; 30) which can be placed on the support (3) and brought to the size and shape of the surface to be upholstered, each of the spring elements (20; 30) having at least one with a support plate (29; 39) provided spring body (21; 31) which, apart from the gaps between adjacent support plates (29; 39), cover the surface (1) to be upholstered essentially without gaps, each crossing piece (13) having at least one spring element has, on which connecting tabs (14) are integrally formed as arms, the spring element t (20; 30) is provided with at least one spring body (21; 31) which is provided on this in the middle or in a regular arrangement on the arms thereof. Upholstery underlay for upholstered surfaces of different shapes and sizes with spring elements that can be placed on rigid or semi-rigid underlay, arranged in regular rows and columns, the feet of which can be attached to the underlay and the heads of which have support plates on which a continuous, mattress-like overlay can be placed, in particular for retrofitting Beds, characterized by a grid (10) made of spring elements (20; 30) which can be placed on the base (3) and brought to the size and shape of the surface to be upholstered, each of the spring elements (20; 30) having at least one with a support plate (29; 39) provided spring body (21; 31) which, apart from the gaps between adjacent support plates (29; 39), cover the surface (1) to be upholstered essentially without gaps, each crossing element (13) having at least one spring element has, on which connecting straps are releasably attached as arms (14), the Fe derelement (20; 30) with at least one spring body (21; 31) is provided, which is provided on this in the middle or in a regular arrangement on the arms. Upholstery pad according to claim 2, characterized in that the feet (23) of the spring bodies (21; 31) are designed as butt connectors bridging the butt joints between the crossing pieces (13) and the connecting straps (14) or between two connecting straps (14). Upholstery underlay according to claim 1, 2 or 3, characterized in that the spring bodies (21; 31) are integrally formed on the crossing pieces (13) or on the connecting straps (14). Upholstery underlay according to claim 1, 2 or 3, characterized in that the spring bodies (21; 31) are fixed to the crossing pieces (13) or to the connecting straps (14) with holding elements. Upholstery underlay according to claim 5, characterized in that the holding elements are molded onto the crossing pieces (13) or the connecting straps (14) and cooperate with the feet (23) of the spring bodies (21; 31). Upholstery underlay according to claim 5, characterized in that the holding elements are designed as holding clips which engage around the crossing pieces (13) or the connecting straps (14) and which cooperate with the feet (23; 33) of the spring bodies (21; 31). Upholstery pad according to one of claims 1 to 7, characterized in that the cross pieces (13) provided with arms (14) as connecting straps or with means for attaching the connecting straps and with the spring body (21; 31) or with means for fitting them Plastic parts which can preferably be produced by injection molding are formed. Upholstery underlay according to one of claims 1 to 8, characterized in that each foot of the spring body (21; 31) is provided with a rectangular base plate (36) as a holding element in which two abutting longitudinal side edges (36.1) with latching tongues (36.2) and the have two other abutting longitudinal side edges approaches (36.5) with latching openings (36.6), the latching tongues (36.2) and the latching openings (36.6) being aligned with or symmetrical to the center line of the spring body (31) such that they can be joined together in pairs. Upholstery underlay according to claim 9, characterized in that the lugs (36.1) in the area of the latching tongues (36.2) are designed such that their material thickness "h" compared to the thickness "H" of the base plate (36) is at most half, while the lugs (36.5) with the locking openings (36.6) in the area of the overlap have clearances (36.7), the depth of which corresponds to the material thickness "h" of the locking tongue extensions (36.1). Upholstery pad according to one of claims 1 to 10, characterized in that locking means are provided for fixing the spring elements (20) in their final position. Use of an upholstery underlay according to one of claims 1 to 11 as a futon-like support, in which the grid of the spring elements (20; 30) including the mattress-like support (6) is sewn into a sheath (7), preferably the side edges with upholstery strips ( 8) are covered.

Images