EP0216827A1

EP0216827A1 - Device having at least two seats arranged one behind the other

Info

Publication number: EP0216827A1
Application number: EP86901768A
Authority: EP
Inventors: Robert HÄFELFINGER
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-04-03
Filing date: 1986-04-03
Publication date: 1987-04-08
Also published as: JPS62502395A; WO1986005748A1; US4735456A

Abstract

Deux sièges (1a, 1b) sont montés de telle façon sur des éléments de support (15, 16) qu'ils peuvent, par un mouvement de pivotement, être amenés d'une position assise, où ils sont l'un derrière l'autre, à une position couchée, où ils sont l'un au-dessus de l'autre. En même temps qu'ils pivotent jusqu'à la position couchée, les sièges (1a, 1b) sont totalement étendus à l'horizontale par des organes de réglage (54, 60a/b, 61a/b, 63a/b, 64a/b, 65a/b, 67b, 68b, 70b). Ce dispositif convient particulièrement pour des utilisations dans des moyens de transport. Dans un mode de réalisation, il est possible de monter des rangées des sièges ayant deux ou plusieurs sièges adjacents, au lieu de sièges isolés (1a, 1b).Two seats (1a, 1b) are mounted in such a way on support elements (15, 16) that they can, by a pivoting movement, be brought from a seated position, where they are one behind the other, in a lying position, where they are one above the other. At the same time as they pivot to the lying position, the seats (1a, 1b) are fully extended horizontally by adjusting members (54, 60a / b, 61a / b, 63a / b, 64a / b, 65a / b, 67b, 68b, 70b). This device is particularly suitable for uses in means of transport. In one embodiment, it is possible to mount rows of seats having two or more adjacent seats, instead of isolated seats (1a, 1b).

Description

Device with at least two seats arranged one behind the other

The design of the seats is extremely important for the convenience of a means of transport. Last but not least, seating comfort decides whether a trip is pleasant or exhausting. During longer trips, there is often a need for sleeping accommodation, especially during the night. In vehicles with limited space, for example on buses, trains or airplanes, it is not possible to set up beds without large surcharges. In order to enable a position that is as comfortable as possible and in which people with average nerve strength can also sleep a little, the inclination of the backrests is often individually adjustable. In the case of seats for higher demands, leg elements are also sometimes present, and their inclination can also be adjusted individually. A really good sleeping comfort is only given when the seats can be fully extended, so that in addition to the supine position, the side and prone positions are also possible. During sleep there is always a need to turn and change the position somewhat. But with the known seat arrangements, it is not possible to extend the seats completely horizontally, even in the first class. The invention, as it is characterized in the claims, solves the problem of creating a device in which the seats can be fully extended even with limited space.

This is achieved according to the invention in that two seats or rows of seats arranged one behind the other can be brought into a stretched position parallel one above the other by means of a pivoting-stretching mechanism. For this purpose, drive means can be provided which allow an automatic change of position. The construction of the pivoting-stretching mechanism advantageously allows * that the seat does not have to be left when changing position. This ^" avoids unrest that would arise if those passengers who had to change position had to leave the seat for this purpose.

The invention based on a

Drawing explained for example. Show it:

1 shows an axonometric view of a device according to the invention in the sitting position. FIG. 2 shows an illustrative side view of two devices arranged one behind the other in the sitting position

3 shows an illustrative side view of two devices arranged one behind the other in the lying position

Fig. a schematic side view of a device in the sitting position 1 shows a schematic side view of a device in a lying position

Fig. 6 is a plan view of a device in a lying position.

Fig. 7 is a schematic side view of another embodiment of the invention in the sitting position

Fig. 8 is a schematic side view of the others

Embodiment of the invention in a lying position.

For a better overview, the seats in Figures 1 to 8 are provided with dots.

1 shows an axonometric representation of a device according to the invention. Two seats 1 a, 1 b are arranged one behind the other on two supports 8, provided on the side. There is an adjustment mechanism in each of the supports 8, which enables the position to be changed from the sitting to the lying position and vice versa. A seat la, Ib each consists of a seat eil la, lb, which is firmly connected to the left and right with an armrest 2a, 2b. He is also from one

- Back element 3a, 3b, ^' a head element 4a, 4b, a leg element and a foot element βa, βb or 7a, 7b constructed The Kop element 4a, 4b is firmly connected to side headrests 5a, 5b. On the head part 5b of the front seat, a support element 11 is provided on each side, by means of which the head element 5b of the front seat is supported in the lying position on two supports 10 mounted left and right of the rear seat on the supports 8. Recesses 12 are provided in the foot element 7b of the front seat, which are used for ascending or descending onto or from the front seat 1b in the lying position.

In Fig. 2, which two arranged in a row 9.5-85 - 4 -

Shows devices in the sitting position, people P1, P2, P3, P4 are shown for better clarity. The person P1 in the rear seat la of the rear device is about to lift a glass G from the built-in table E. The built-in tables E can be lowered into the armrests 2 a / b, 2 a '/ b' after use. The person P2 sits relaxed on the front seat Ib of the rear device. The person P3 on the rear seat ia 'of the front device holds onto a handle 14' shown in dashed lines. This helps as a support when climbing or leaving the rear seat 1 a. The person P4 sitting on the front seat 1b 'also sits relaxed in the front device.

In Fig. 3 the four people Pl,

P2, P3 _. P * - also in the devices arranged one behind the other. But here the devices are shown in the lying position. The rear seat Ia of the rear device has been transformed into a couch lying against the floor. The front seat Ib of the rear device now serves as an upper bed. Incidentally, one can clearly see here how the support element 11 or 11 * of the front seat Ib or Ib ^• rests on the support 10 or 10 'provided for the rear seat Ia or Ia'. Person P1 has assumed a lateral rest position, while person P2 is currently in the process of climbing the upper couch. To do this, insert a tip of the foot into a recess 12 in the foot elements 7b.

In the front device is the

Person P3 in the supine position. It holds onto the handle 14 * shown in dashed lines. In this position of the device, this handle 14 'serves as an aid to straighten up. The upper person P4 lies in a comfortable prone position. - 5 -

4 shows a schematic side view of a device according to the invention in the sitting position. The inclination of the seat part 1 a / b, back and head element 3 a / b or 5 a / b and leg and foot element β a / b or 7 a / b can be adjusted. For this purpose, axes 23 a / b, 24 a / b, 25 a / b, 26 a / b, 27b are provided, which connect the individual seat elements to one another in a hinge-like manner. To the left and to the right of the seats there is a beam with two beam walls. In the figure, however, only the inner support wall 15 of the support arranged on the right is visible.

The seat parts 1 a / b are connected on the left and right by axes 17 a / b provided in their central region, each with a C-shaped support element lβ. This has a guide slot 17, in which it is mounted on two guide axes 18. These are fastened between the inner support wall 15 and the outer support wall, not shown. To pivot the

Seat parts 1 a / b from the position one behind the other to the position one above the other make the C-shaped support element a quarter turn around a center Z which lies in the middle of the connecting line between the two axes 17 a / b. A drive means, not shown in the figure, sets a drive axis 21 in rotary motion. The C-shaped support element Iβ is adjusted by means of a chain 20 fastened at its ends, into which a chain provided on the drive shaft 21 is inserted. Gear 22 engages. An electric motor is primarily considered as the drive means. However, a hydraulic or pneumatic version or manual operation with a hand crank is also conceivable. So that the rear seat part la maintains its horizontal orientation during a pivoting movement, the rear axis 23 a, which connects the seat part la with the back element 3 b, is provided with a guide wheel 24 a, which is provided in a guide provided in the inner support wall 15 sschlitz 19 is guided. This has the shape of a quarter circle B, which has the same diameter as the C-shaped support element Iβ.

So that the front seat part 1b also maintains its horizontal orientation during a pivoting movement, the front axis 25b, which connects the seat part 1b with the leg element βb, is guided by means of a guide wheel 44 into a likewise quarter-circle-shaped guide slot 30 which is in the inner support wall 15 is provided and has the same diameter as the C-shaped Trägereleir.ent 16.

With a swiveling movement of the seat parts

The seats become 1 a / b from the sitting to the lying position

I a / b fully stretched out. The stretching movement is achieved in the rear seat Ia by the following means

A gear 33a is attached to the rear end of the C-shaped carrier element 16 and moves a gear hidden in the figure by the guide wheel 32 via a chain 34a. This gearwheel is firmly connected to the back element 3a via the axis 24a, which connects the seat part 1a and the back element 3a in a hinge-like manner. With a quarter turn of the C-shaped carrier element 16, the gear 33a connected to it also performs a quarter turn, which is transmitted according to the gear ratio of the two gears to the backrest 3a. The translation ratio is selected in consideration of the inclination of the backrest 3a in the sitting position so that after an adjustment of the seat 1a to the lying position, the backrest 3a is fully extended. Another gearwheel connected to the axle 24a moves a gearwheel 31a via a further chain 35a. This is firmly connected to the latter via the axis 23a, which connects the back element 3a and the head element 5a. The gear ratio is selected so that the head element 5a is completely horizontal when the seat Ia is in the lying position.

The foot element 7a of the rear seat Ia is partially on a dashed line

Podium 39 on. It is provided with a rear axle, which in the figure is hidden by the C-shaped support element 16, and which connects the foot element 7a to the leg element 6a in a hinge-like manner. The axle is provided on both sides with a wheel 37a and is additionally guided horizontally in a guide slot 29 provided in the inner support wall 15. When the rear seat 1a swivels forward downward, the foot element 7a is pushed horizontally forward. The leg element 6a is also pushed forward and at the same time folded down, so that when the lying position is reached it is aligned at the same height as the seat part 1a and the foot element 7a horizontally.

The front seat Ib has a similarly constructed chain system as the rear seat Ia. Regarding the adjustment of the back element 3b and the head elements 5b applies accordingly to the rear seat Ia. In contrast to the rear seat Ia, the gear 33b attached to the front end of the C-shaped carrier element Iβ is still connected to a further gear 40 via the chain 34b. The transmission ratio of the toothed wheels 33b, 40 ^"is selected such that upon reaching the lying position, the leg member is oriented horizontally 6b. On the axis 27b which connects the leg member 6b and the foot element 7b hinged together, there is a locking member 41 whose Function will be explained below with reference to FIG. 5.

The device is shown in the lying position in FIG. The former rear seat Ia is closed. a couch stretched out below and the front seat Ib in the sitting position is stretched out to a couch above. The foot element 7b of the upper lounger 1b is pulled down by gravity and held at a certain angle W by a locking device 41. This angle is chosen so that a comfortable ascent of the upper bed 1b is possible (cf. also FIG. 3).

4 and 5, no support or adjustment elements present on the left side of the seats 1a, 1b are visible. However, what has been said regarding the elements arranged on the right applies accordingly.

6 shows a floor plan of the chassis of the device when the seats are in the lying position. Both carriers 8 are visible in the figure. They consist of an inner wall 15 and an outer wall 43. At the rear there is a support 10 for supporting the head element of the front seat on ebracht. A platform 39 is located in the front area between the two carriers. This is used for horizontal bracing of the carriers 8. Furthermore, the drive means 42, for example an electric motor, are mounted therein. Finally, it serves as a support for the foot element 7a of the rear seat 1a. The drive means 42 offset the drive shaft 21 via a gearwheel 43, which is connected to the two gear wheels. Between the inner and outer support walls 15 and 43 there are two guide axes 18, on which the C-shaped support elements 1b are guided. The figure also shows the rear axle 24b, the axle 25b in the center area and the front axle 2βb for the seat part of the front seat. The axis 25b for the central region of the seat part is connected to the C-shaped support elements lβ. The front axle 2βb slides by means of the two guide wheels 44 in the guide slots 0 provided for this purpose in the inner support walls 15. The position of the C-shaped guide elements 16 when the seats are in the seated position is indicated by a dashed line.

FIG. 7 shows a schematic side view of an embodiment variant of the device according to the invention in the sitting position. Here too, the inclination of the seat part 1 a / b of the back and head element 3 a / b or 5 a / b and of the leg and foot element 6 a / b or 7 a / b are adjustable. For this purpose, axes 59 a / b, 62 a / b, 65 a / b, 69 b are provided, which connect the individual seat elements to one another in a hinge-like manner. To the left and to the right of the seats there is a beam with two beam walls. In the figure, however, "only the inner support wall 51 of the support arranged on the right is visible.

9-5.85 The seat parts 1 a / b are connected to one another via their rear axles 62 a / b via a first C-shaped carrier element 47 and via their front axles 65 a / b via a second C-shaped carrier element. The C-shaped carrier elements 45 and 47 each have a guide slot 46 and 48, in which they are each mounted and guided on two guide axes 4g and 50, respectively. These are fastened between the inner support wall 51 and the outer support wall, not shown. To pivot the seat parts 1 a / b from the position one behind the other to the position one above the other, the C-shaped support elements ^' 47, 5 each make a quarter turn around a center Z. or around a center Z _? , The center Z lies in the middle of the connecting line between the two rear axles 62 a / b and the center Z in the middle of the connecting line between the two front axles 65 a / b. A drive means, not shown in the figure, sets a drive axis 55 in rotary motion. The adjustment of the first C-shaped carrier element 47 takes place via a chain 53 fastened at its ends, into which a gearwheel 56 provided on the drive axis 55 engages. The adjustment of the second C-shaped carrier element 4-5 takes place via a chain 52 fastened at its ends, in which a gearwheel provided on the drive shaft 55 but not shown in the figure engages. An electric motor is again primarily considered as the drive means. However, hydraulic, pneumatic or manual operation with a hand crank is also conceivable here.

The two C-shaped support elements 45, 47 are arranged next to one another on the side of the seats.

9.5-85 The common drive axis 55 ensures a synchronous movement and thus a clean parallel guidance of the seat parts 1 a / b. In comparison to the embodiment variant shown in FIGS. 1-6, both the rear and the front ^"provided in the inner support wall guide slots are omitted, which - to ensure the horizontal alignment of the seat parts 1 a / b - for guiding the serve as the rear axle for the rear seat part and the front axle for the front seat part, thus eliminating the upper part of the support wall that protrudes beyond the armrest of the front seat Ib.

With a pivoting movement of the seat parts 1 a / b from the sitting to the lying position, the seats I a / b are each fully extended. The stretching movement for the rear seat Ia is achieved by the following means:

At the rear end of the second support member 45, which carries and guides the front axis β5a of the seat part la, a gear ββa is attached. This gearwheel ββa is connected to a further gearwheel 63 via a chain 64a. The further gear 63a is connected to the rear axle 62a of the seat part la, the rear axle 62a being fixedly connected to the back part 3a. When the first C-shaped carrier element 45 rotates a quarter, the gearwheel 66a connected to it also makes a quarter turn, which is transmitted to the backrest 3a in accordance with the gear ratio of the two gearwheels 66a, 63a. The translation ratio is selected taking into account the inclination of the backrest 3a in the sitting position so that the backrest 3a is completely horizontally extended after the seat la has been adjusted to the lying position. Another with the

9.5.85 Gear 62 connected to axis 62a, but not shown in the figure, moves a gear 60a via a further chain 6la. This is connected via an axis 59a, which connects the back element 3a and the head element 5a to one another, firmly with the latter. The gear ratio is selected so that the head element is completely horizontal when the seat 1a is in the lying position (cf. FIG. 8).

^' The foot element 7a of the rear seat Ia partly rests on a platform 57, which is partly shown in broken lines. It is provided with a rear axle, which in the figure is hidden by the second C-shaped carrier element 45 and which connects the foot element 7a to the leg element 6a in a hinge-like manner. The axle is provided with a wheel, not shown in the figure, which is guided in a guide slot 58 provided in the inner support wall 51. When the rear seat la swivels forward downward, the foot element 7a is pushed horizontally forward. The leg element 6a is also pushed forward and at the same time folded down, so that when the lying position is reached at the same height as the seat part 1a and the foot element 7a is aligned horizontally. So that the leg element 6a of the rear seat Ia securely receives the desired angle of inclination after a pivoting movement into the sitting position, a drive wheel 54 is provided which additionally exerts an adjusting force in the horizontal direction on the foot element 7a. The drive wheel 54 can be designed as a toothed wheel which engages in a toothed rack (not shown in the figure) which is fastened at the bottom to the foot element 7a.

9.5.84 The front seat 1b has a chain system similarly divided to that of the rear seat 1a. Regarding the adjustment of the back element 3b and the head element, what has been said about the rear seat 1a applies accordingly. The gear 66b, which is rotatably mounted on the front axle β5b of the seat 1b and is fixedly connected to the front end of the second C-shaped carrier element 45, serves as the drive wheel. In contrast to the rear seat, in which the foot element 7a is guided horizontally by the platform 57 and the drive wheel 54 and at the same time the adjustment of the leg element. mentes βa causes require at both front seat Ib leg member ^β b and foot element 7b organs other Verstell¬. The front axle of the seat part 1b, which is rotatably mounted in it, is firmly connected to the leg part βb. It is connected to a further crank rod 74b via a crank 73b and a push rod 72b. The latter is firmly connected to the rear axle 62b of the seat part 1b. With a rotational movement of this rear axle 62b, which serves to adjust the back element 3b, a rotational movement of the front axle 65b is simultaneously effected, and thus an adjustment of the leg element. Instead of this protective rod system 72b, 73b, 74b, a solution with a chain and gearwheels - not shown in the figure - would also be conceivable. Here, the rear and front axles 63b, 65b would be provided with gearwheels and connected to one another via a chain in which these gearwheels engage. A chain 68b serves to adjust the foot element 7b. This is attached at one end to a gear 75b fixedly connected to the axle 65b and at its other end to a further gear 70b. The latter gear 70b is firmly connected to the axis 69b, which in turn is firmly connected to the foot element 7b. The chain 68b is crossed, so that the gears 75b and 70b rotate in the opposite direction. The transmission ratio of the two gear wheels 75b, 70b is selected such that when the leg element 6b is aligned horizontally, the foot element 7b is oriented downward at a predetermined angle W (cf. FIG. 8).

8 shows the further embodiment variant, which is shown in the sitting position according to FIG. 7, in the lying position. The two C-shaped support members 45, 47 have, starting from the sitting position according to FIG. 7, a quarter turn executes in the clockwise direction, the previously rear ^'seat Ia is now a sun extended downward, and the front in the sitting position the seat Ib is to be a lounger stretched out above. The foot element 7a of the upper lounger 1b was brought into a certain angle W by the chain drive 66b, 68b, 70b. This angle W is selected so that the upper lounger 1b can be climbed comfortably (cf. also FIG. 3).

For better clarity, no support or adjustment elements are shown in FIGS. 7 and 8, even on the left side of the seats 1a, 1b. However, what has been said regarding the elements arranged on the right applies accordingly.

FIGS. 1-6 show devices with individual seats. Instead of a single seat, rows of seats with two or more seats can be provided side by side at the rear and front. In such an embodiment variant, three or more carriers arranged next to one another can also be provided. It is a great advantage of the device according to the invention that, despite optimal use of space, the seats are easily accessible both in the sitting and in the lying position. The passengers can remain in their seats even when changing position and are always buckled up. The armrests 2 a / b also retain a position

9.5.85 Change their horizontal orientation. For this reason, the objects placed thereon can be left there during the entire journey and always remain at hand.

Claims

Patent claims

1. Device with at least two seats arranged one behind the other, in which each seat is each constructed from at least one seat part, a back, a head and a leg element, characterized in that the seat parts (1 a / b) are ge The result is that by means of a reversible pivoting movement, which takes place for the rear and the front seat part (1 a / b) in the opposite sense, both in the horizontal and also in the vertical direction, into a position parallel to one another are pivotable, and that the back (3 a / o), head (4 a / b) and leg elements (6 a / b) ^{'can be} aligned one after the other from the sitting position into an extended lying position one above the other in synchronism with the pivoting movement .

2. Device according to claim 1, characterized ge indicates that the seat parts (1 a / b) are mounted on transversely arranged axes (25 a / b, 62 a / b, 65 a / b), and that these axes describe the arc of a quarter circle in the case of a pivoting movement, the diameter of a circle being determined by the distance between the corresponding axes (25 a / b or 62 a / b or 65 a / b) from one another.

9-5-85

3. Device according to one of claims 1 or 2, characterized in that the axially arranged in the Mittenbe¬ area of the seat parts (1 a / b) axes (25 a / b) are provided, which laterally at the ends of - C- Shaped trasper elements (16) are fastened and guided, which are guided by means of guide elements (18) so that they can be rotated through an angle of 90, the center (Z) of the rotary movement being in the middle of the connecting line between the two axes (25 a / b) lies.

4. The device according to claim 1 to 3, characterized in that the rear seat part (la) is in each case additionally mounted on a rear axle (24 a), the tracks in first guide (19) _. which are provided in the inner walls (15) of two laterally arranged supports is guided such that the rear seat part maintains the horizontal orientation during a pivoting movement and that the front seat part (Ib) of the front seat (Ib) each is additionally mounted on a front axle (25b) which is guided in second guideways (30), which are provided in the inner walls (15) of two laterally arranged supports (8), in such a way that the front seat part (lb) during a pivoting movement maintains the horizontal orientation.

5. Device according to claim 1 or 2, characterized in that the seat parts (la, lb) on transversely ge _l agerten front axle (6 * 5 a / b) and rear axles. (62 a / b) stored are that the two Front axles (65 a / b) borrowed at the ends of a front C-shaped support element

(45) and the two rear axles (62 a / b) are laterally attached and guided at the ends j of a rear C-shaped support element (47) that the C-shaped support elements

(45, 47) by means of guide elements (49, 50) through an angle -5.85 are rotated by 90 °, the center (Z) of the rotary movement. the rear C-shaped carrier elements (47) in the middle of the connecting line between the two front axles (65 a / b) and the center (Z) of the rotational movement of the front C-shaped carrier elements (4 in the middle of the connecting line between the two Hinter¬ axes (62 a / b) is.

6. Device according to one of claims 1 to 5, characterized in that the seat parts (1 a / b), the back elements _. (3 a / b) and the head elements (4 a / b), the leg elements (6 a / b) and the foot elements (7 a / b) by means of axes (23 a / b, 24 a / b, -26 a / b, 27b) adjustable in angle to each other, connected in a hinge-like manner _. ^' are and that adjusting elements (33 a / b, 34 a / b, 35 a / b, 31 a / b, 40) are provided, by means of which the back ^" (3 ^' a / b), head ( 4 a / b), leg (6 a / b) and foot elements (7 a / b) can be stretched horizontally in synchronism with the pivoting movement of the seat parts (1 a / b).

7. The device according to claim 6, characterized ge indicates that the adjusting member from gears (31 a / b, 36b, 33 a / b, 40) and chains (34 a / b, 35 a / b) is constructed.

8. Device according to one of claims 1 to 7, characterized in that the foot element (7 ^" o) of the front seat is connected in a hinge-like manner to the leg element (ob) via an axis (27b) that an arresting device (41) is provided, by means of which

.The foot element (7b) with a horizontal alignment of the leg element (6b) at a predetermined angle (W) 9.5.85 is held, and that recesses (12) are provided in the foot element (7b), which are used to climb the extended upper seat in the lying position. ,

9 .. Device according to one of claims 1 to 8, characterized in that at least two seats are arranged side by side behind and in front.

-5.85