ES2897451T3 - folding seat device - Google Patents

Abstract

Seat device (100) with two side parts (110, 111) as well as a backrest element (120) and a seat element (130), which can be detachably anchored to the side parts (110, 111) to the less indirectly, where in the area of a front surface near the backrest element (120) the two respective side parts (110, 111) are mounted on a first hinge (141) that can rotate about a vertical axis, so that the side parts (110, 111) reversibly pass from a normal position, where the side parts (110, 111) are arranged perpendicular to the backrest element (120), to a retracted position, in which the parts side parts (110, 111) are oriented parallel to the backrest element (120), and the side parts (110, 111) are each subdivided into a partial zone (110', 111') close to the backrest element (120) and a partial area (110", 111") remote from the backrest element (120), where a partial area The respective one (110', 111') close to the backrest element (120) is mounted in the area of a front surface close to the respective backrest element (120) around the first hinge (141) pivoting around an axis vertical and where the two partial areas (110', 111', 110", 111") are each mounted in the area of the facing front surfaces around a second hinge (142) rotating around a vertical axis, so that the respective partial regions (110', 111', 110", 111"') reversibly pass from a folded state, in which the partial regions (110', 111', 110", 111") are arranged essentially parallel to the backing element (120), to an expanded state, in which the respective two partial regions (110', 111', 110", 111") are arranged in a normal position perpendicular to the backing element ( 120), and where furthermore, in the area of a front surface remote from the backrest element (120) of a respective partial area (110", 1 11") of a respective lateral part (110, 111) remote from the backrest element (120), a third hinge (143) with a perpendicular pivoting axis is provided for fixing a connecting piece that joins the two lateral parts ( 110", 111"), where the seat element (130) can be reversibly passed from a collapsed state, in which the seat element is arranged parallel to the backrest element (120), to an expanded state, in which the seat element (130) is arranged perpendicular to the back element (120) and perpendicular to the side parts (110, 111), in which a connecting strut (200) is provided connecting the part connection (150) with the backrest element (120), where the strut is divided by a pivoting hinge (143) into a first part (210) close to the backrest element (120) and a second part (220) close to the connection piece (150), where a front surface (211) of the first part (210) near d the backrest element (120) is articulated with the backrest element (120) by means of a first pivoting hinge (2111) and a front surface (221) of the second part (220) near the connecting element (150) It is articulated with the connecting piece (150) by means of a second pivoting hinge (2211), characterized in that the first pivoting hinge (2111) is arranged above the second pivoting hinge (2211) and the first part (210) and the second part (220) of the connection strut (200) have, in total, a length greater than the maximum distance between the backrest element (120) and the connection part (150) so that the first part (210) and the second part (220) of the connecting strut (200) are at a predetermined angle of less than 180° with respect to each other at the maximum distance between the back member (120) and the connecting part (150). ) for the purpose of a clearly predetermined direction when folding the point the connecting element (200) about the central pivot hinge (230) as the seating device moves from a normal position to a retracted position.

Description

DESCRIPTION

folding seat device

[0001] The invention relates to a seating device with two side parts as well as a backrest element and a seat element, which can be anchored in such a way that it can be decoupled at least indirectly from the side parts, where the two side parts are respectively mounted in the area of a front surface close to the respective backrest element around a first hinge that can pivot around a vertical axis, in order to pass the side parts reversibly, from a normal position, in where the side parts are arranged perpendicular to the backrest element, to a retracted position, where the side parts are oriented parallel to the backrest element and the side parts are each divided into a partial zone close to the backrest element and a partial area remote from the backing element, where a respective partial close to the backing element in the area of a front surface c close to the corresponding backrest element is mounted around the first hinge that can pivot around a vertical axis, and where the two partial areas in the area of the facing front surfaces are mounted around a second hinge rotatable around a vertical axis, so that the two partial regions can reversibly pass from a folded state, in which the partial regions are arranged essentially parallel to the backing element, into an expanded state, in which the respective two partial regions are arranged in the normal position perpendicular to the backrest element and where furthermore in the region of a front surface remote from the backrest element of a respective partial region remote from the backrest element, a third hinge with a vertical pivot axis is provided for fixing a piece of connection that joins the two lateral parts. Such a seating device of this type is known, for example, from document US2016331140A1.

[0002] Seat devices of the type mentioned at the outset are known in the prior art as seats which can be manually and reversibly switched from a collapsed state intended for storage to an expanded state intended for use. These known seat devices, however, have the disadvantage that the manual process of moving a seat from a collapsed state to an expanded state and back again can be time-consuming and complicated.

[0003] The object of the invention is therefore to further develop a seating device initially mentioned in the sense that the manual process of passing from a folded state to an expanded state and vice versa can be carried out quickly and easily.

[0004] For a seating device of the type mentioned initially, this task according to the invention is solved according to the invention by the features of the characterizing part of claim 1.

[0005] Preferred embodiments of the invention are the subject of the dependent claims, the elements of which act in the direction of further improving the solution of the task that is the basis of the invention.

[0006] In the seating device according to the invention, compared to the seating device known in the prior art, a significantly facilitated transition from a collapsed state to an expanded state and vice versa is achieved with the help of the combination of features of that a connection strut is provided that joins the connection element to the backrest element, where the strut is divided by a pivoting central hinge into a first part near the backrest element and a second part near the connection element, where a surface The front surface of the first part near the backrest element is hinged by means of a first pivoting hinge on the backrest element and a front surface of the second part near the connecting piece is hinged on the connecting piece by means of a second pivot hinge.

[0007] According to the invention, provision is made for the first pivot hinge to be arranged above the second pivot hinge and for the first part and the second part of the connecting strut to have a total length greater than the maximum distance between the backrest element and the connecting part, whereby the first part and the second part of the connecting strut at the maximum distance between the backing element and the connecting part for the purpose of a clearly predetermined direction when folding the connecting strut around the center pivot hinge moving the seating device from a normal position to a retracted position at a predetermined angle are less than 180° from each other.

[0008] According to a further preferred embodiment of the device according to the invention, a reversibly compressible/expandable gas pressure damper, filled of gas, which by moving the partial area of a corresponding lateral part near the backrest element towards the backrest element absorbs the compressive energy and releases it again by moving the partial area away from a lateral part of the backrest element to stabilize the area corresponding partial of a lateral part to the maximum distance of the backrest element.

[0009] A compressible/expandable gas-filled gas pressure damper is also preferably arranged between the connecting part and a partial region of a side part near the connecting part. reversibly, that when the partial area of a corresponding lateral part near the connecting element moves towards the connecting part, it absorbs compressive energy and releases it again when the corresponding partial area of a lateral part moves away from the connecting part connection to stabilize the partial area of a side part at the maximum distance from the connection part.

[0010] According to a preferred important embodiment of the device according to the invention, a fastening device is provided in each partial zone of a side part near the backrest element for arranging a respective first end, where each of the two respective cables is guided through an opening formed in the back member and respective other ends of the cables in question are connected to each other behind the opening in the area of a rear side of the back member.

[0011] A connection point of the other relevant ends of the two cable pullers is provided with a gripping element for grasping the other ends with the hand in order to execute a pulling movement of the cable pullers by rapid transfer of the seating device from a normal position to a retracted position.

[0012] The backrest element and the respective partial areas of a side part can be designed, for example, as a panel, where the lower surface of a respective panel at least indirectly forms a contact surface for placing the seating device on a flat support surface.

[0013] The connecting element can for example be formed as a panel, the lower surface of which also at least indirectly forms a contact surface for placing the seating device on a flat supporting surface.

[0014] The seat element is preferably reversibly reversible from a collapsed state, in which the seat element is arranged essentially parallel to the seat element, into an expanded state, in which the seat element is arranged in perpendicular to the back element and perpendicular to the side parts.

[0015] According to a simple embodiment of the seating device according to the invention, the seating element is divided into a partial zone close to the backrest element and a partial zone remote from the backrest element, where the two partial zones are mounted on the zone of facing front surfaces around a fourth hinge that rotates around a horizontal axis, in order to reversibly move the respective partial zones from a folded state, in which the partial zones are arranged essentially parallel to the backrest element , to an expanded state, in which the two respective partial zones are arranged perpendicular to the backrest element and perpendicular to the side parts.

[0016] The seat element can preferably be formed by a plurality of slat bodies connected to each other by connecting elements, where the individual connecting elements can be designed, for example, as hinges or as elastic bands extending at an angle straight with the front edge of the seat element.

[0017] The slat bodies are preferably formed elongated and narrow, where a long side of the slat body is arranged parallel to a front edge of the seat element. A respective support surface of the slat body is thus preferably but not necessarily formed from at least one upper edge, generally from the two upper edges of the two respective side parts.

[0018] In particular, in the region of a respective inner surface

from the two side parts a projection can be formed which forms a bearing surface for the expanded seat element.

[0019] The two first hinges, each rotatable about a vertical axis, are preferably arranged at a predetermined distance from the backrest element on a spacer element firmly connected to the backrest element, in order to create a free space, into which they can be inserted. folded side parts and folded seat surface.

[0020] The two side parts as well as the seat element can be formed according to a simple embodiment of rectangular shaped flat panels.

[0021] According to the invention, however, the two side parts are formed by flat panels with a rectangular shape and the backrest element is formed by a plurality of bodies of slats linked together by joining elements.

[0022] The individual connecting elements are formed by hinges or alternatively by elastic bands that extend perpendicular to the upper edge of the back element.

[0023] The slat bodies are preferably long and narrow in shape, where a long side of the slat body is arranged parallel to an upper edge of the backing element.

[0024] According to another important preferred embodiment of the device according to the invention, a support surface of the slat bodies is arranged inclined at a constant angle to form an inclined flat surface of the backrest element. Furthermore, a support surface of the slat bodies is formed at least in partial sections convexly or concavely, in order to form a corresponding curved surface of the backing element.

[0025] A bearing surface of the slat bodies can thus preferably be formed by a rear edge of a side part.

[0026] The seating device according to the invention is explained below by means of a preferred embodiment, which is shown in the drawing figures. Shows:

Fig.1

a seating device according to the state of the art according to the preamble of claim 1 in a folded state in a top view;

Fig.2

the seating device shown in Figure 1 in a semi-expanded state in a top view;

Fig.3

the seating device shown in Figure 1 in a fully expanded state in a top view;

Fig.4

the seating device shown in figure 1 in a fully expanded state in an oblique front view,

Fig.5

a preferred embodiment of a seating device according to the invention in a folded state in a top view,

Fig 6

the preferred embodiment depicted in fig. 5 of the seating device according to the invention in a semi-expanded state in a top view;

Fig.7

the preferred embodiment depicted in fig. 5 of the seating device according to the invention in a fully expanded state in a top view;

Fig 8

the preferred embodiment depicted in fig. 5 of the seating device according to the invention in a fully expanded state in an oblique view from the front;

Fig 9

a preferred embodiment of the device according to the invention in a fully expanded state in a rear view,

Fig.10

a preferred embodiment of the device according to the invention in a fully expanded state in an oblique view from the front.

[0027] The seating device shown in figures 1 to 4 contains the basic structure of the state of the art of the seating device according to the invention shown in figures 5 to 10. In the following description reference is also made to the structure basic belonging to the prior art.

[0028] The seating device 100 according to the invention shown in FIGS. 1 to 5 has two side parts 110, 111 as well as a backrest element 120 and a seat element 130, which can be anchored to the side elements 110, 111. detachably, where the two side elements 110, 111 are each mounted in the front area near the corresponding backrest element 120 on a hinge 141 that can rotate about a vertical axis to bring the side parts 110, 111 from one normal position, in which the side parts 110, 111 are arranged perpendicular to the backrest element 120, to a rest position, in which the side parts 110, 111 are arranged parallel to the backrest element 120.

[0029] The side parts 110, 111 are each subdivided into a partial area 110', 111' close to the backrest element 120 and a partial area 110", 111" remote from the backrest element 120, where a respective partial area 110 ', 111' near the backrest element 120 is mounted in the region of a front surface near the respective backrest element 120 around the first hinge 141 which rotates about a vertical axis and where the two partial regions 110', 111' , 110", 111" are also mounted in the zone of the facing front faces each on a second hinge 142 that rotates about a vertical axis, in order to move the respective partial zones 110', 111', 110", 111" from a folded state, in which the partial regions 110', 111', 110", 111" are arranged essentially parallel to the backing element 120, to an expanded state in which the two partial regions 110', 111', 110", 111" are each arranged in a normal position perpendicular to the backrest element 120.

[0030] In the area of a front face remote from the backrest element 120 of a partial area 110", 111" of a respective side part 110, 111 remote from the backrest element 120, there is a third hinge 143 with a vertical pivot axis to fix a connecting piece 150 joining the two side parts 110", 111". In order to facilitate the passage of the seating device 100 from a normal position to a retracted position, a connecting strut 200 is provided which connects the connecting element 150 with the backrest element 120, where the strut is subdivided by a hinge. 230 pivoting centrally in a first part 210 near the backrest element 120 and a second part 220 near the connection part 150.

[0031] A front surface 211 of the first part 210 near the backrest element 120 is hinged to the backrest element 120 by means of a first pivot hinge 2111 and a front surface 221 of the second part 220 near the connecting part 150 it is connected to the connecting piece 150 by means of a second articulated pivoting hinge 2211.

[0032] The first pivot hinge 2111 is arranged above the second pivot hinge 2211 and the first part 210 and the second part 220 of the connecting strut 200 have a total length greater than the maximum distance between the backrest element 120 and the part connecting strut 150, so that the first part 210 and the second part 220 of the connecting strut 200 at a maximum distance from the backing element 120 of the connecting part 150 for the purpose of a clearly predetermined direction when the connecting strut is folded. connection 200 around the central pivot hinge 230 as the seating device 100 passes from a normal position to a retracted position are at a predetermined angle of less than 180° relative to each other.

[0033] Between the backrest element 120 and a partial region 110', 111' of a side part 110, 111 close to the backrest element 120, a gas-filled, compressible/expandable gas pressure damper 410 is arranged. reversibly that by moving the partial area 110', 111' of a lateral part 110, 111 close to the backrest element 120 towards the backrest element 120 absorbs the compressive energy and releases it again when the corresponding partial area of a lateral part 110, 111 moves away from the backrest element 120 in order to stabilize the corresponding partial area of a side part 110, 111 at the maximum distance from the backrest element 120.

[0034] In addition, a gas-filled, reversibly compressible/expandable gas pressure damper 400 is also disposed between the connecting part 150 and a partial area 110', 111' of a side part 110, 111 near of the connecting element 150, where the damper, by moving the corresponding partial area 110', 111' of a lateral part 110, 111 close to the connecting element 150 towards the connecting element 150, absorbs the compression energy and emits it from again by moving the relevant partial area of a side part 110, 111 away from the connecting element 150, in order to stabilize the corresponding partial area of a side part 110, 111 at the maximum distance of the connecting part 150.

[0035] In each partial area 110', 111' of a side part 110, 111 near the backrest element 120, a clamping device 350, 360 is arranged for arranging a respective first end 311, 321 of a cable puller 310, 320, where each of the two cable pulls 310, 320 is guided through an opening 1201 formed in the back member 120 and the respective other ends 3111, 3211 of the relevant cables 310, 320 are connected to each other behind of the opening 1201 in the area of a rear part of the backrest element 120.

[0036] A connection point of the corresponding other ends 3111, 3211 of the two cable pullers 310, 320 is provided with a gripping element 500 for grasping the other ends 3111, 3211 by hand in order to perform a movement pull of the cable pulls 310, 320 as the seating device 100 is rapidly moved from a normal position to a retracted position.

[0037] The backrest element 120 and the respective parts of a side part 110, 111 are formed as a panel, where the lower surface of a respective panel at least indirectly forms a contact surface for placing the seating device 100 on a flat resting surface.

[0038] The connecting element 150 is also formed as a panel, the lower surface of which also forms, at least indirectly, a contact surface for placing the seating device 100 on a flat support surface.

[0039] The seat element can be reversibly passed from a collapsed state, in which the seat element is arranged parallel to the backrest element 120, to an expanded state, in which the seat element is arranged perpendicular to the backrest element 120 and perpendicular to the side parts 110, 111.

[0040] The seat element is subdivided into a partial zone 110", 111'' near the backrest element 120 and a partial zone remote from the backrest element 120, where the two partial zones are mounted in the zone of facing front surfaces about a fourth hinge that rotates about a horizontal axis, in order to reversibly move the respective partial regions 110", 111" out of a folded state, in which the partial regions 110", 111" are arranged essentially parallel to the backrest element 120, in an expanded state, in which the two respective partial regions 110", 111" are arranged perpendicular to the backrest element 120 and perpendicular to the side portions 110", 111" The seat element 130 is formed by a plurality of slat bodies 131, 132 connected to each other by means of connecting elements 150, where the individual connecting elements 150 are designed as hinges.

[0041] The slat bodies 131, 132 have an elongated and narrow shape, where a long side of the slat body is arranged parallel to a front edge of the seat element. A bearing surface of the slat bodies 131, 132 is concavely shaped to form a convexly bent surface of the seat element.

[0042] The upper edges of the two respective side parts 110, 111 form support surfaces 160 for the slat bodies 131, 132, in which in the area of a respective inner surface of the two side parts 110, 111 is formed a projection, which forms a bearing surface 160 for the expanded seat element.

[0043] The first two hinges 141, each of which can rotate about a vertical axis, are arranged at a predetermined distance from the backrest element 120 on a spacer element 170 fixedly connected to the backrest element 120 to form a clearance the folded side pieces 110, 111 and the folded seat surface 130 can be inserted into it.

[0044] The two side pieces 110, 111 and the seating device 120 are formed by flat panels configured in a rectangular shape.

[0045] The exemplary embodiment of the invention explained above is only for the purpose of a better understanding of the teaching according to the invention given by the claims, which as such are not limited by the exemplary embodiment.

List of reference signs

[0046]

100 = seating device

110, 111 = side parts

110', 111' = near partial zone

110", 111"= far partial area

120 = backup element

1201 = backrest element opening

130= seat element

130'= near partial zone

130"= far partial zone

131, 132= slat body

141= first hinge

142= second hinge

143= third hinge

144= fourth hinge

150= connection element

160= support surface

170= spacer element

200= connection strut

210= first part of the connection strut

211= front surface of the first part of the connecting strut

220= second part of the connection strut

221= front surface of the second part of the connecting strut

2211= first pivot hinge

2211= second pivot hinge

230= center pivot hinge

310= first cable puller

311= first end of first cable puller

3111= other end of first cable puller

320= second cable puller

321= first end of second cable puller

3211= other end of second cable puller 400= gas pressure damper

410= gas pressure damper

500= grab element

501= connection point

2111= first pivot hinge

2211= second pivot hinge

Claims (15)

1. Seating device (100) with two side parts (110, 111) as well as a backrest element (120) and a seat element (130), which can be anchored to the side parts (110, 111) in a manner at least indirectly detachable, where in the area of a front surface near the backrest element (120) the two respective side parts (110, 111) are mounted on a first hinge (141) that can rotate about a vertical axis, so that the side parts (110, 111) reversibly pass from a normal position, where the side parts (110, 111) are arranged perpendicular to the backrest element (120), to a retracted position, in which the side parts (110, 111) are oriented parallel to the backrest element (120), and the side parts (110, 111) are each subdivided into a partial area (110', 111') close to the backrest element ( 120) and a partial area (110", 111") away from the backrest element (120), where an even area respective front surface (110', 111') close to the backrest element (120) is mounted in the area of a front surface close to the respective backrest element (120) around the first hinge (141) pivoting around an axis vertical and where the two partial areas (110', 111', 110", 111") are each mounted in the area of the facing front surfaces around a second hinge (142) rotating around a vertical axis, so that the respective partial regions (110', 111', 110", 111"') reversibly pass from a folded state, in which the partial regions (110', 111', 110", 111") are arranged essentially parallel to the backing element (120), to an expanded state, in which the respective two partial regions (110', 111', 110", 111") are arranged in a normal position perpendicular to the backing element ( 120), and where furthermore, in the area of a front surface remote from the backrest element (120) of a respective partial area (110" , 111") of a respective lateral part (110, 111) remote from the backrest element (120), a third hinge (143) with a perpendicular pivoting axis is provided for fixing a connecting piece that joins the two lateral parts (110", 111"), where the seat element (130) can be reversibly passed from a collapsed state, in which the seat element is arranged parallel to the backrest element (120), to an expanded state , in which the seat element (130) is arranged perpendicular to the back element (120) and perpendicular to the side parts (110, 111), in which a connecting strut (200) is provided connecting the connection piece (150) with the backrest element (120), where the strut is divided by a pivoting hinge (143) into a first part (210) close to the backrest element (120) and a second part (220) close to of the connection piece (150), where a front surface (211) of the first part (210) closes a of the backrest element (120) is articulated with the backrest element (120) by means of a first pivoting hinge (2111) and a front surface (221) of the second part (220) near the connecting element (150). ) is articulated with the connecting piece (150) by means of a second pivoting hinge (2211), characterized in that the first pivoting hinge (2111) is arranged above the second pivoting hinge (2211) and the first part (210) and the second part (220) of the connection strut (200) have, in total, a length greater than the maximum distance between the backrest element (120) and the connection part (150) so that the The first part (210) and the second part (220) of the connecting strut (200) are at a predetermined angle of less than 180° with respect to each other at the maximum distance between the back member (120) and the connecting part ( 150) for the purpose of a clearly predetermined direction when folding the p connecting strut (200) about the central pivot hinge (230) as the seating device moves from a normal position to a retracted position. Seating device (100) according to one of the preceding claims, characterized in that between the backrest element (120) and a partial area (110', 111') of a side part (110, 111) close to A reversibly compressible/expandable gas pressure damper (410) is arranged on the backrest element (120), which, when the corresponding partial area (110', 111') of a side part (110, 111) close to the backrest element moves, backrest (120) absorbs compressive energy in the backrest element (120) and releases it when the corresponding partial zone (110', 111') moves away from a lateral portion (110, 111, 111') of a lateral member (110). , 111) of the backrest element (120) to stabilize the respective zone (110', 111') of a side element (110, 111) at a maximum distance from the backrest element (120). Seating device (100) according to one of the preceding claims, characterized in that between the connecting element (150) and a partial area (110', 111') of a lateral part (110, 111) close to A gas-filled, reversibly compressible/expandable gas pressure damper (400) is also arranged on the connecting element (150), which by moving the corresponding partial area (110", 111") of a lateral part (110, 111 ) towards the connecting element (150) absorbs compressive energy and releases it again by moving away the corresponding partial zone (110", 111") of a lateral part (110, 111) of the connecting element (150) to stabilize the corresponding partial area (110", 111") of a side part (110, 111) at a maximum distance from the connecting element (150). 4. Seating device (100) according to any one of the preceding claims, characterized in that in each partial zone (110', 111') of a lateral part (110, 111) close to the backrest element (120) , a fixing means (350, 360) is provided for fixing a respective first end (311, 321) of a respective cable puller (310, 320), in which each of the two cable pullers (310, 320 ) is guided through an opening (1201) formed in the back member (120) and the respective other ends (3111, 3211) of the respective cable pulls (310, 320) are connected to each other behind the opening ( 1201) in the region of a rear side of the back member (120). Seating device (100) according to one of the preceding claims, characterized in that a connection point (501) of the respective other ends (3111, 3211) of the two cable pullers (310, 320) is provided with a gripping element (500) for manually grasping the other ends (3111, 3211) in order to execute a pulling movement of the cable pullers (310, 320) when quickly passing the seating device from one position normal to a retracted position. Seating device (100) according to one of the preceding claims, characterized in that the backrest element (120) as well as the respective partial regions (110', 111', 110", 111'') of a side part (110, 111) are formed as a panel, where the bottom surface of a respective panel at least indirectly forms a contact surface for placing the seating device (100) on a flat support surface. Seating device (100) according to one of the preceding claims, characterized in that the connecting element (150) is formed as a panel, the lower surface of which also forms, at least indirectly, a contact surface for laying the seating device (100) on a flat support surface. Seating device (100) according to one of Claims 1 to 7, characterized in that the seat element (130) is divided into a partial area (130') close to the backrest element (120) and a partial area (130") remote from the backrest element (120), the two partial areas (130', 130") being mounted in the area of facing front surfaces around a fourth hinge (144) pivoting around an axis horizontally, in order to pass the respective partial areas (130', 130") of the seat element (130) reversibly from a folded state, in which the partial areas (130', 130") are arranged essentially parallel to the element (120), to an expanded state, in which the two respective partial zones (130', 130") are arranged perpendicular to the back element (120) and perpendicular to the side parts (110, 111). Seating device (100) according to one of Claims 1 to 7, characterized in that the seating element (130) is formed by a plurality of slat bodies connected to one another by connecting elements. Seating device (100) according to claim 9, characterized in that the individual connecting elements are designed as hinges. Seating device (100) according to claim 9, characterized in that the individual connecting elements are formed as elastic bands extending at right angles to the front edge of the seating element (130). Seating device (100) according to one of Claims 9 to 11, characterized in that the slat bodies (131, 132) are elongated and narrow, with one long side of the slat bodies being arranged parallel to a leading edge of the seat element. 13. Seating device (100) according to one of claims 9 to 12, characterized in that a support surface of the slat bodies (131, 132) is concave, convex or concavo-convex to form a curved surface concave, convex or concavo-convex of the seat element (130), respectively. Seating device according to claim 12, characterized in that the upper edges of the two respective side parts (110, 111) form support surfaces for the slat bodies (131, 132). Seating device according to one of the preceding claims, characterized in that a protrusion is formed in the area of a respective inner surface of the two side parts (110, 111), which forms a support surface (160) for the expanded seat element (130).