EP3651617B1 - Collapsible seat device - Google Patents

Description

The invention relates to a seat device with two side parts as well as a backrest element and a seat element which is at least indirectly releasably anchored to the side parts, the two side parts in the area of an end face close to the respective backrest element each by one by one vertical axis pivotable first hinge are mounted to reversibly transfer the side parts from a normal position in which the side parts are arranged perpendicular to the backrest element into a stowed position in which the side parts are aligned parallel to the backrest element, and the side parts are each subdivided into a partial area close to the backrest element and a partial area distant from the backrest element, with a respective partial area close to the backrest element in the area of an end face close to the respective backrest element about the pivotable about a vertical axis the first hinge is mounted and the two sub-areas in the area of opposing end faces are each mounted about a second hinge pivotable about a vertical axis in order to move the respective sub-areas from a collapsed state in which the sub-areas are arranged essentially parallel to the backrest element, reversible to an expanded state in which the two sub-areas are arranged in the normal position perpendicular to the backrest element, and furthermore in the area of an end face remote from the backrest element of a sub-area of a respective side part remote from the backrest element Hinge is provided with a vertical pivot axis for fastening a connecting part connecting the two side parts. Such a seat device is known, for example from US2016331140 A1 .

Seat devices of the type mentioned at the beginning are known in the prior art as seats which can be reversibly converted by hand from a collapsed state intended for stowing into an expanded state intended for use. These known seat devices, however, have the disadvantage that the manual process of transferring a seat from a collapsed state to an expanded state and back can be time-consuming and cumbersome.

The object of the invention is therefore to further develop a seat device of the type mentioned at the outset such that the manual process of transferring a seat from a collapsed state to an expanded state and back can be carried out quickly and easily.

For a seat device of the type mentioned at the outset, this object is achieved according to the invention by the features of the characterizing part of claim 1.

Preferred embodiments of the invention are the subject matter of the subclaims, the elements of which act in the sense of a further improvement of the approach to the solution of the object on which the invention is based.

In the case of the seat device according to the invention, with the aid of the combination of features, a connecting strut connecting the connecting element to the backrest element is provided, which is divided by a central pivot hinge into a first part close to the backrest element and a second part close to the connecting part, wherein an end face of the first part close to the backrest element is articulated to the backrest element by means of a first swivel hinge and an end face of the second part close to the connecting part is articulated to the connecting part by means of a second swivel hinge, a seat known in the prior art -Device significantly easier Conversion of a seat from a collapsed state to an expanded state and back achieved.

According to the invention it is provided that the first pivot hinge is arranged above the second pivot hinge and the first part and the second part of the connecting strut have a total length greater than the maximum distance between the backrest element and the connecting part, so that the first part and the second Part of the connecting strut with maximum spacing between the backrest element and the connecting part for the purpose of a clearly predetermined direction when folding the connecting strut around the central pivot hinge by moving the seat device from a normal position to a stowed position at a predetermined angle less than 180 ° stand to each other.

According to another preferred embodiment of the device according to the invention, a gas-filled, reversibly compressible / expandable gas pressure damper is arranged between the backrest element and a partial area of a side part close to the backrest element absorbs compression energy of a side part on the backrest element and releases it again when the relevant part of a side part moves away from the backrest element in order to stabilize the part of a side part in question at the maximum distance from the backrest element.

Furthermore, a gas-filled, reversibly compressible / expandable gas pressure damper is preferably also arranged between the connecting part and a partial area of a side part close to the connecting part, which absorbs compression energy when the relevant part of a side part close to the connecting element moves towards the connecting part and emits this again when the relevant partial area of a side part moves away from the connecting part in order to stabilize the relevant partial area of a side part at a maximum distance from the connecting part.

According to an important preferred embodiment of the device according to the invention, a fastening device for attaching a respective first end of a respective cable is attached to each partial area of a side part close to the backrest element, each of the two cables being guided through an opening formed in the backrest element and the respective other ends of the cables concerned are connected to one another behind the opening in the area of a rear side of the backrest element.

A connection point of the relevant other ends of the two cables is provided with a grip element for gripping the other ends by hand for the purpose of executing a pulling movement of the cables by way of a quick transfer of the seat device from a normal position to a stowed position.

The backrest element and the respective partial areas of a side part can be used as a panel, for example be formed, the lower surface of a respective panel at least indirectly forming a contact surface for placing the seat device on a flat storage surface.

The connecting element can be designed, for example, as a panel, the lower surface of which also at least indirectly forms a contact surface for placing the seat device on a flat storage surface.

According to the invention, the seat element can be reversibly transferred from a collapsed state in which the seat element is arranged parallel to the backrest element to an expanded state in which the seat element is arranged perpendicular to the backrest element and perpendicular to the side parts.

According to a further preferred embodiment of the device according to the invention, the seat element is divided into a partial area close to the backrest element and a partial area remote from the backrest element, the two partial areas being mounted in the area of opposing end faces around a fourth hinge pivotable about a horizontal axis in order to achieve the respective partial areas of the seat element from a collapsed state, in which the partial areas are arranged essentially parallel to the backrest element, reversibly into an expanded state in which the two partial areas are arranged perpendicular to the backrest element and perpendicular to the side parts .

The seat element can preferably be formed by a plurality of lamellar bodies connected to one another by means of connecting elements, the individual Connecting elements can be designed, for example, as hinges or as elastic bands running at right angles to the front edge of the seat element.

The lamellar bodies are preferably long and narrow, a long side of the lamellar body being arranged parallel to a front edge of the seat element. A support surface of the lamellar body can be concave, convex or concavo-convex in order to form a concave, convex or concavo-convex curved surface of the seat element, the upper edges of the two side parts in question preferably forming support surfaces for the lamellar bodies.

In this case, in particular in the area of a respective inner surface of the two side parts, a projection can be formed which forms a support surface for the expanded seat element.

The two first hinges, each pivotable 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 the collapsed side parts and the collapsed seat surface can be introduced .

In general, according to a simple embodiment, the two side parts and the backrest element can be formed by rectangular panels.

According to preferred embodiments, the two side parts are planar and rectangular Panels formed, wherein the backrest element is formed by a plurality of lamellar bodies connected to one another by means of connecting elements.

The individual connecting elements can be formed by hinges or, alternatively, by elastic bands running at right angles to the upper edge of the backrest element.

The lamellar bodies are preferably long and narrow, with a long side of the lamellar body being arranged parallel to an upper edge of the backrest element.

According to a further important preferred embodiment of the device according to the invention, a support surface of the lamellar body is arranged inclined at a constant angle in order to form an inclined flat surface of the backrest element. Furthermore, a support surface of the lamellar body is designed to be concave or convex, at least in partial sections, in order to form a correspondingly curved surface of the backrest element.

A support surface of the lamellar body can in particular be formed by a rear edge of a side part.

Fig. 1

eine Sitz-Vorrichtung gemäß Stand der Technik gemäß Oberbegriff des Patentanspruchs 1 in kollabiertem Zustand in einer Ansicht von oben;

Fig. 2

die in Figur 1 dargestellte Sitz-Vorrichtung in einem halb-expandiertem Zustand in einer Ansicht von oben;

Fig. 3

die in Figur 1 dargestellte Sitz-Vorrichtung in einem voll-expandiertem Zustand in einer Ansicht von oben;

Fig. 4

die in Figur 1 dargestellte Sitz-Vorrichtung in einem voll-expandiertem Zustand in einer Ansicht von schräg vorne.

Fig. 5

eine bevorzugte Ausführungsform einer erfindungsgemäßen Sitz-Vorrichtung in kollabiertem Zustand in einer Ansicht von oben;

Fig. 6

die in Figur 5 dargestellte bevorzugte Ausführungsform der erfindungsgemäßen Sitz-Vorrichtung in einem halb-expandiertem Zustand in einer Ansicht von oben;

Fig. 7

die in Figur 5 dargestellte bevorzugte Ausführungsform der erfindungsgemäßen Sitz-Vorrichtung in einem voll-expandiertem Zustand in einer Ansicht von oben;

Fig. 8

die in Figur 5 dargestellte bevorzugte Ausführungsform der erfindungsgemäßen Sitz-Vorrichtung in einem voll-expandiertem Zustand in einer Ansicht von schräg vorne;

Fig. 9

eine bevorzugte Ausführungsform der erfindungsgemäßen Vorrichtung in voll-expandiertem Zustand in einer Ansicht von hinten.

Fig.10

eine bevorzugte Ausführungsform der erfindungsgemäßen Vorrichtung in voll-expandiertem Zustand in einer Ansicht von schräg vorne.

The seat device according to the invention is explained below with reference to a preferred embodiment, which is shown in the figures of the drawings. Show in it:

Fig. 1

a seat device according to the prior art according to the preamble of claim 1 in the collapsed state in a view from above;

Fig. 2

in the Figure 1 illustrated seat device in a semi-expanded state in a view from above;

Fig. 3

in the Figure 1 illustrated seat device in a fully expanded state in a view from above;

Fig. 4

in the Figure 1 Seat device shown in a fully expanded state in a view obliquely from the front.

Fig. 5

a preferred embodiment of a seat device according to the invention in the collapsed state in a view from above;

Fig. 6

in the Figure 5 illustrated preferred embodiment of the seat device according to the invention in a semi-expanded state in a view from above;

Fig. 7

in the Figure 5 illustrated preferred embodiment of the seat device according to the invention in a fully expanded state in a view from above;

Fig. 8

in the Figure 5 illustrated preferred embodiment of the seat device according to the invention in a fully expanded state in a view obliquely from the front;

Fig. 9

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

Fig. 10

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

The ones in the Figures 1 to 4 Seat device shown contains the basic structure belonging to the prior art in the Figures 5 to 10 illustrated seat device according to the invention. Reference is also made in the following description to the basic structure belonging to the prior art.

The ones in the Figures 5 to 10 The seat device 100 according to the invention shown contains two side parts 110, 111 as well as a backrest element 120 and a seat element 130 which can be releasably anchored to the side parts 110, 111, the two side parts 110, 111 in the area of a backrest element in question. Element 120 near the end face are each mounted about a first hinge 141 pivotable about a vertical axis in order to reversibly transfer the side parts 110, 111 from a normal position, in which the side parts 110, 111 are arranged perpendicular to the backrest element 120, into a stowed position , in which the side parts 110, 111 are aligned parallel to the backrest element 120.

The side parts 110, 111 are each subdivided into a sub-area 110 ", 111" close to the backrest element 120 and a sub-area 110 ", 111" away from the backrest element 120, with a respective sub-area 110 ', 111 'in the area of an end face close to the relevant backrest element 120 the first hinge 141 pivotable about a vertical axis is mounted and the two partial areas 110 ', 111', 110 ", 111"'in the area of opposing end faces are each mounted about a second hinge 142 pivotable about a vertical axis, around the respective Subregions 110 ', 111', 110 ", 111" from a collapsed state, in which the subregions 110 ', 111', 110 "111" are arranged essentially parallel to the backrest element 120, reversibly into an expanded state transfer, in which the two partial areas 110 ', 111', 110 ", 111" are arranged in the normal position perpendicular to the backrest element 120.

In the area of an end 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 for fastening one of the two side parts 110 ", 111" connecting part 150. For the purpose of facilitating the transfer of the seat device 100 from a normal position to a stowed position, a connecting strut 200 connecting the connecting element 150 to the backrest element 120 is provided near the first part 210 and a second part 220 near the connecting part 150 is divided.

An end face 211 of the first part 210 close to the backrest element 120 is articulated to the backrest element 120 by means of a first pivot hinge 2111, and an end face 221 of the second part close to the connecting part 150 220 is articulated to the connecting part 150 by means of a second pivot hinge 2211.

The first swivel hinge 2111 is arranged above the second swivel 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 connecting part 150, so that the first part 210 and the second part 220 of the connecting strut 200 at the maximum spacing of the backrest element 120 from the connecting part 150 for the purpose of a clearly predetermined direction when the connecting strut 200 is folded around the central pivot hinge 230 by moving the seat device 100 from a normal position to a stowage position at a predetermined angle less than 180 ° to each other.

Between the backrest element 120 and a partial area 110 ', 111' of a side part 110, 111 close to the backrest element 120, a gas-filled, reversibly compressible / expandable gas pressure damper 410 is arranged. Element 120 near partial area 110 ', 111' of a side part 110, 111 on the backrest element 120 absorbs compression energy and releases it again when the relevant partial area of a side part 110, 111 moves away from the backrest element 120 to the relevant To stabilize part of a side part 110, 111 at the maximum distance from the backrest element 120.

Furthermore, a gas-filled, reversibly compressible / expandable gas pressure damper 400 is also arranged between the connecting part 150 and a partial area 110 ', 111' of a side part 110, 111 close to the connecting element 150, which, when the relevant, the connecting part 150 moves Partial area 110 ', 111' of a side part 110, 111 on the connecting part 150 to absorb compression energy and releasing this again when the relevant part of a side part 110, 111 moves away from the connecting part 150, in order to convert the relevant part of a side part 110, 111 into maximum distance from the connecting part 150 to stabilize.

A fastening device 350, 360 for attaching a respective first end 311, 321 of a respective cable pull 310, 320 is attached to each partial area 110 ', 111' of a side part 110, 111 close to the backrest element 120, with each of the two cable pulls 310, 320 is guided through an opening 1201 formed in the backrest element 120 and the respective other ends 3111, 3211 of the relevant cables 310, 320 behind the opening 1201 in the area of a rear side of the backrest element 120 are connected to one another.

A connection point of the respective other ends 3111, 3211 of the two cables 310, 320 is with a grip element 500 for gripping the other ends 3111, 3211 by hand for the purpose of executing a pulling movement of the cables 310, 320 by way of a quick transfer of the seat device 100 provided from a normal position to a stowed position.

The backrest element 120 and the respective partial areas of a side part 110, 111 are designed as a panel, the lower surface of a respective panel at least indirectly forming a contact surface for placing the seat device 100 on a flat storage surface.

The connecting element 150 is also designed as a panel, the lower surface of which also at least indirectly forms a contact surface for placing the seat device 100 on a flat storage surface.

The seat element can be reversibly transferred 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.

The seat element is subdivided into a sub-area 110 ", 111" near the backrest element 120 and a subarea 110 ", 111" away from the backrest element 120, the two sub-areas 110 ", 111" in the area of opposing end faces about a fourth pivotable about a horizontal axis Hinge 144 are mounted in order to convert the respective partial areas 110 ″, 111 ″ of the seat element from a collapsed state, in which the partial areas 110 ″ 111 ″ are arranged essentially parallel to the backrest element 120, reversibly into an expanded state, in in which the two partial areas 110 ″, 111 ″ are arranged perpendicular to the backrest element 120 and perpendicular to the side parts 110, 111 lamellar bodies 131, 132 connected to one another are formed, the individual connecting elements 150 being designed as hinges.

The lamellar bodies 131, 132 are long and narrow, with a long side of the lamellar bodies 131, 132 being arranged parallel to a front edge of the seat element. A bearing surface 160 of the lamellar bodies 131, 132 is concave in order to form a concave curved surface of the seat element.

The upper edges of the two side parts 110, 111 in question form support surfaces 160 for the lamellar bodies 131, 132, with a projection being 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.

The two first hinges 141, each pivotable about a vertical axis, are arranged at a predetermined distance from the backrest element 120 on a spacer element 170 firmly connected to the backrest element 120 in order to create a free space in which the collapsed side parts 110, 111 and the collapsed seat can be inserted.

The two side parts 110, 111 and the backrest element 120 are formed by rectangular panels.

The embodiment of the invention explained above serves only the purpose of a better understanding of the teaching according to the invention given by the claims, which as such is not limited by the embodiment.

List of reference symbols

100

= Seat device

110, 111

= Side panels

110 ', 111'

= near sub-area

110 ", 111"

= distant sub-area

120

= Backrest element

1201

= Opening in the backrest element

130

= Seat element

130 '

= near sub-area

130 "

= distant sub-area

131, 132

= Lamellar body

141

= first hinge

142

= second hinge

143

= third hinge

144

= fourth hinge

150

= Connecting part

160

= Contact surface

170

= Distance element

200

= Connecting strut

210

= first part of the connecting strut

211

= Face of the first part of the connecting strut

220

= second part of the connecting strut

221

= Face of the second part of the connecting strut

2111

= first swivel hinge

2211

= second swivel hinge

230

= central swivel hinge

310

= first cable pull

311

= first end of the first cable pull

3111

= other end of the first cable pull

320

= second cable pull

321

= first end of the second cable pull

3211

= other end of the second cable pull

400

= Gas pressure damper

410

= Gas pressure damper

500

= Handle element

501

= Connection point

2111

= first swivel hinge

2211

= second swivel hinge

Claims (15)

1. Seat device (100) with two side parts (110, 111), a backrest element (120), and a seat element (130) which can be anchored to the side parts (110, 111) at least in an indirectly detachable manner, wherein, in the region of an end face which is close to the relevant backrest element (120), the two side parts (110, 111) are respectively mounted about a first hinge (141), which can be pivoted about a perpendicular axis, in order to reversibly transfer the side parts (110, 111) from a normal position, in which the side parts (110, 111) are arranged perpendicularly to the backrest element (120), into a stowage position, in which the side parts (110, 111) are aligned parallel to the backrest element (120), and the side parts (110, 111) are respectively subdivided into a subregion (110', 111') which is close to the backrest element (120) and a subregion (110", 111"') which is remote from the backrest element (120), wherein, in the region of an end face which is close to the relevant backrest element (120), a respective subregion (110', 111') which is close to the backrest element (120) is mounted about the first hinge (141), which can be pivoted about a perpendicular axis, and wherein, in the region of opposite end faces, the two subregions (110', 111', 110", 111"') are respectively mounted about a second hinge (142), which can be pivoted about a perpendicular axis, in order to reversibly transfer the respective subregions (110', 111', 110", 111"') from a collapsed state, in which the subregions (110', 111', 110", 111"') are arranged substantially parallel to the backrest element (120), into an expanded state, in which the respective two subregions (110', 111', 110", 111"') in the normal position are arranged perpendicularly to the backrest element (120), and wherein furthermore provided in the region of an end face, remote from the backrest element (120), of a subregion (110", 111"), respectively remote from the backrest element (120), of a respective side part (110, 111) is a third hinge (143) with a perpendicular pivot axis for fastening a connecting part (150) which connects the two side parts (110", 111"), wherein the seat element (130) can be reversibly transferred from a collapsed state, in which the seat element is arranged parallel to the backrest element (120), into an expanded state, in which the seat element (130) is arranged perpendicularly to the backrest element (120) and perpendicularly to the side parts (110, 111), wherein there is provided a connecting strut (200), which connects the connecting part (150) to the backrest element (120) and is subdivided by a central pivot hinge (230) into a first part (210), which is close to the backrest element (120), and a second part (220), which is close to the connecting part (150), wherein an end face (211) of the first part (210) that is close to the backrest element (120) is articulated on the backrest element (120) by means of a first pivot hinge (2111) and an end face (221) of the second part (220) that is close to the connecting part (150) is articulated on the connecting part (150) by means of a second pivot hinge (2211), characterized in that 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) as a whole have a greater length than the maximum distance between the backrest element (120) and the connecting part (150), with the result that, when there is the maximum spacing between the backrest element (120) and the connecting part (150), for the purpose of a clearly predefined direction for folding the connecting strut (200) about the central pivot axis (230) in the course of transferring the seat device from a normal position into a stowage position, the first part (210) and the second part (220) of the connecting strut (200) are at a predefined angle of less than 180° with respect to one another.
2. Seat device (100) according to one of the preceding claims, characterized in that arranged between the backrest element (120) and a subregion (110', 111') of a side part (110, 111) that is close to the backrest element (120) is a reversibly compressible/expandable gas pressure damper (410) which is filled with gas, absorbs compression energy when the relevant subregion (110', 111') of a side part (110, 111) that is close to the backrest element (120) is being moved towards the backrest element (120) and discharges said compression energy again when the relevant subregion (110', 111') of a side part (110, 111) is being moved away from the backrest element (120), in order to stabilize the relevant subregion (110', 111') of a side part (110, 111) at a maximum distance from the backrest element (120).
3. Seat device (100) according to either of the preceding claims, characterized in that likewise arranged between the connecting part (150) and a subregion (110', 111') of a side part (110, 111) that is close to the connecting part (150) is a reversibly compressible/expandable gas pressure damper (400) which is filled with gas, absorbs compression energy when the relevant subregion (110", 111") of a side part (110, 111) that is close to the connecting element (150) is being moved towards the connecting part (150) and discharges said compression energy again when the relevant subregion (110", 111") of a side part (110, 111) is being moved away from the connecting part (150), in order to stabilize the relevant subregion (110", 111"') of a side part (110, 111) at a maximum distance from the connecting part (150) .
4. Seat device (100) according to one of the preceding claims, characterized in that a fastening device (350, 360) for attaching a respective first end (311, 321) of a respective cable (310, 320) is attached to each subregion (110', 111') of a side part (110, 111) that is close to the backrest element (120), wherein each of the two cables (310, 320) is guided through an opening (1201) formed in the backrest element (120) and the respective other ends (3111, 3211) of the relevant cables (310, 320) are connected to one another behind the opening (1201) in the region of a rear side of the backrest element (120).
5. Seat device (100) according to one of the preceding claims, characterized in that a connecting point (501) of the relevant other ends (3111, 3211) of the two cables (310, 320) is provided with a handle element (500) for manually gripping the other ends (3111, 3211) for the purpose of performing a pulling movement of the cables (310, 320) in the course of quickly transferring the seat device from a normal position into a stowage position.
6. Seat device (100) according to one of the preceding claims, characterized in that the backrest element (120) and the respective subregions (110', 111', 110", 111"') of a side part (110, 111) are in the form of a panel, wherein the bottom surface of a respective panel at least indirectly forms a contact surface for placing the seat device (100) on a planar placement surface.
7. Seat device (100) according to one of the preceding claims, characterized in that the connecting element (150) is in the form of a panel, the bottom surface of which likewise at least indirectly forms a contact surface for placing the seat device (100) on a planar placement surface.
8. Seat device (100) according to one of Claims 1 to 7, characterized in that the seat element (130) is subdivided into a subregion (130') which is close to the backrest element (120) and a subregion (130") which is remote from the backrest element (120), wherein, in the region of opposite end faces, the two subregions (130', 130") are mounted about a fourth hinge (144), which can be pivoted about a horizontal axis, in order to reversibly transfer the respective subregions (130', 130") of the seat element (130) from a collapsed state, in which the subregions (130', 130") are arranged substantially parallel to the backrest element (120), into an expanded state, in which the respective two subregions (130', 130") are arranged perpendicularly to the backrest element (120) and perpendicularly to the side parts (110, 111) .
9. Seat device (100) according to one of Claims 1 to 7, characterized in that the seat element (130) is formed by a plurality of lamellar bodies which are connected to one another by means of connecting elements.
10. Seat device (100) according to Claim 9, characterized in that the individual connecting elements are in the form of hinges.
11. Seat device (100) according to Claim 9, characterized in that the individual connecting elements are in the form of elastic straps which run at right angles to the front edge of the seat element (130).
12. Seat device (100) according to one of Claims 9 to 11, characterized in that the lamellar bodies (131, 132) have a long and narrow form, wherein a long side of the lamellar bodies is arranged parallel to a front edge of the seat element.
13. Seat device (100) according to one of Claims 9 to 12, characterized in that a bearing surface of the lamellar bodies (131, 132) has a concave, convex or concave-convex form, in order to form a concavely, convexly or concave-convexly curved surface of the seat element (130).
14. Seat device (100) according to Claim 12, characterized in that the top edges of the relevant two side parts (110, 111) form bearing surfaces for the lamellar bodies (131, 132).
15. Seat device (100) according to one of the preceding claims, characterized in that a projection which forms a bearing surface (160) for the expanded seat element (130) is formed in the region of a respective inner surface of the two side parts (110, 111).

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