DE202014102119U1 - Adjustable vehicle seat - Google Patents

Abstract

Adjustable vehicle seat (1), comprising a foot (8), by means of which the vehicle seat (1) can be connected to a vehicle structure, and a seat part (2), which can be pivoted about a pivot axis (A) relative to the foot (8), and which has a locking bracket (50) for interacting with a strut (75), characterized in that the locking bracket (50) has at least two locking areas (51, 52) which are arranged offset in the tangential direction to one another.

Description

The invention relates to an adjustable vehicle seat with the features of the preamble of claim 1.

State of the art

From the WO 2014/019931 A1 an adjustable vehicle seat is known, which has a seat part and a pivotally arranged on the seat part backrest. For this purpose, such a vehicle seat on two Lehneneinstellbeschläge, by means of which the backrest is pivotable relative to the seat part about a backrest pivot axis, and by means of which the backrest with the seat part in a plurality of angular positions can be locked.

Starting from a einitzbaren design position in which the backrest is approximately vertical, the vehicle seat is transferred to a table position in which the backrest rests on the seat part. The back of the backrest is approximately horizontal and the vehicle seat has the function of a table.

Further, the vehicle seat is lockable by means of two locking devices, which are mounted in the rear region of the seat part, with a bottom of a vehicle structure. By unlocking the two said locking devices, the rear part of the vehicle seat is detachable from the vehicle structure. By lifting the rear part of the vehicle seat and pivoting forwards, the vehicle seat is convertible to a tumble position, in which the seat part is oriented at an angle of inclination of approximately 90 ° to the floor of the vehicle structure.

In the tumble position, the vehicle seat is held by means of a strut which is pivotally mounted to the floor of the vehicle structure. The strut has for this purpose a hook, which engages around a locking bracket attached to the seat part of the vehicle seat in a form-fitting manner.

task

The invention is based on the object to improve a vehicle seat of the type mentioned above, in particular to allow two separate tumble positions with different angles of inclination for a vehicle seat.

solution

This object is achieved by a vehicle seat with the features mentioned in claim 1. Advantageous embodiments, which can be used individually or in combination with each other, are the subject of the dependent claims.

An adjustable vehicle seat according to the invention comprises a foot by means of which the vehicle seat can be connected to a vehicle structure, and a seat part, which is pivotable about a pivot axis relative to the foot, and which has a locking bracket for cooperation with a strut.

According to the invention, the locking bow has at least two locking areas which are offset relative to one another in the tangential direction with respect to the pivot axis.

As a result, the seat part, for example by means of a strut, durable in two different positions. The vehicle seat is thus adjustable in two separate tumble positions with different angles of inclination.

Preferably, the locking portions are arranged offset to one another in the axial direction with respect to the pivot axis.

According to a possible embodiment of the invention, the locking portions are arranged offset in the radial direction with respect to the pivot axis to each other.

According to an alternative embodiment of the invention, the locking portions are arranged equidistant from the pivot axis in the radial direction.

Preferably, the locking portions extend straight in the axial direction, which simplifies the production.

The locking bracket is preferably designed as a wire with a circular cross section and thus relatively easy to produce.

For holding the seat part, a strut is advantageously provided which has a hook with a hook mouth for selectively embracing one of the locking areas.

The strut is preferably pivotable about a strut axis, which runs parallel to the pivot axis, attachable to the vehicle structure.

Advantageously, the hook of the strut is movable in the axial direction and can thereby encompass offset in the axial direction to each other arranged locking areas.

According to an advantageous embodiment of the invention, a gas spring is provided, which acts on the seat part such that the locking bracket is pressed into the hook mouth. As a result, the strut is in self-locking contact with the seat part.

Figures and embodiments of the invention

In the following the invention is explained in more detail with reference to an advantageous embodiment shown in the drawings. However, the invention is not limited to this embodiment. Show it:

1 FIG. 2: a side view of a vehicle seat in a first tumble position, FIG.

2 FIG. 2: a side view of the vehicle seat in a second tumble position, FIG.

3 FIG. 3: a perspective view of the vehicle seat in the first tumble position, FIG.

4 FIG. 2 is a perspective view of the vehicle seat in the second tumble position. FIG.

5 a locking bar of the vehicle seat,

6 a detail of the latch bracket and a strut in a tumble position,

7 Figure 4 is a detail of the latch bracket and strut as they transition from a tumble position.

8th FIG. 2 is a perspective view of a first seat segment of the vehicle seat in the first tumble position. FIG.

9 : an enlarged view of the locking bar 8th .

10 a perspective view of the first seat segment of the vehicle seat in the second tumble position and

11 : an enlarged view of the locking bar 10 ,

A vehicle seat 1 for a motor vehicle has a first seat segment 14 and a second seat segment 15 on. Each of the two seating segments 14 . 15 each has a seat part 2 and a backrest 3 on.

The arrangement of the vehicle seat 1 Within the vehicle and its usual direction of travel define the directional information used below. In this case, a direction oriented perpendicular to the ground is referred to below as the vertical direction and a direction perpendicular to the vertical direction and perpendicular to the direction of travel is referred to below as the transverse direction.

The seating segments 14 . 15 are arranged side by side in the transverse direction. The first seating segment 14 In the present case, it extends transversely over approximately 60% of the width of the vehicle seat 1 , The second seat segment 14 In the present case, it extends transversely over approximately 40% of the width of the vehicle seat 1 , The structure of the two seat segments 14 . 15 is essentially the same, which is why below only on the first seat segment 14 will be received.

The backrest 3 of the first seat segment 14 is pivotable about a transversely extending backrest pivot axis on the seat part 2 appropriate. By means of two Lehneneinstellbeschläge, which are presently designed as latching fittings, is the backrest 3 in a plurality of discrete angular positions relative to the seat portion 2 adjustable. Such Lehneneinstellbeschlag is for example in the DE 10 2004 041 449 B3 discloses, the related disclosure of which is expressly incorporated.

At the the seat part 2 opposite ends of the backrest 3 is a headrest 7 attached, which is designed in this case adjustable in height and tilt adjustable.

In a design position, not shown, of the first seat segment 14 of the vehicle seat 1 is the backrest 3 in an approximately vertical position. By unlocking the Lehneneinstellbeschläge and pivoting the backrest 3 in a horizontal position is the first seat segment 14 of the vehicle seat 1 in a table position, not shown, transferred. The backrest is in the table position 3 on the seat part 2 on and runs approximately parallel to this and parallel to a floor of a vehicle structure.

The seat part points 2 in a rear direction in the direction of travel on both sides each have a rear foot 9 on which a locking device 90 includes. Such a locking device is for example in the WO 2004 069 585 A1 discloses, the related disclosure of which is expressly incorporated. By means of the locking device 90 is the rear area of the seat part 2 detachably connected to the floor of the vehicle structure.

In a front in the direction of travel area, the seat part 2 one front foot each 8th on, by means of which the seat part 2 connected to the floor of the vehicle structure. The seat part 2 is about a pivot axis A, which in the area of the front feet 8th in the transverse direction, pivotable relative to the bottom of the vehicle structure.

The pivot axis A defines a cylindrical coordinate system. The terms axial direction, radial direction and tangential direction used below refer to this cylindrical coordinate system. The tangential direction is identical to the circumferential direction.

In the design position and in the table position of the first seat segment 14 of the vehicle seat 1 are the locking devices 90 locked with bolt attached to the vehicle structure.

To transfer the first seat segment 14 of the vehicle seat 1 from the table position to a tumble position become the two locking devices 90 the back feet 9 unlocked at the same time, reducing the rear feet 9 to break away from the vehicle structure. Then the seat part 2 with the support of gas springs 60 pivoted about the pivot axis A to the front to the seat part 2 aligned in an inclined angle of inclination to the floor of the vehicle structure.

The backrest is in the tumble position 3 on the seat part 2 on and runs approximately parallel to this. The first seating segment 14 of the vehicle seat 1 is folded forward and the backrest 3 and the seat part 2 are inclined relative to the vehicle floor by the inclination angle associated with the tumble position. This is the first seat segment 14 of the vehicle seat 1 by means of a strut 75 and two gas springs 60 held in the tumble position. In the present case, the second seat segment 15 of the vehicle seat 1 by means of a strut 75 and only one gas spring 60 held in the tumble position.

If both seating segments 14 . 15 are in the tumble position, as in 1 . 2 . 3 and 4 shown, so is the entire vehicle seat 1 in the tumble position.

The strut 75 is pivotally mounted about a strut axis B, which is parallel to the pivot axis A, to the floor of the vehicle structure. At the strut axis B facing away from the end of the strut 75 is a catch 71 attached, which is a hook mouth 72 having. The hook 71 is slightly movable in the axial direction. This is the strut 75 in the present case designed elastic.

The hook mouth 72 opens in a direction approximately perpendicular to the longitudinal axis of the strut 75 , The hook mouth 72 extends from said opening, starting inside the hook 71 in the direction perpendicular to the longitudinal axis of the strut 75 as well as in the direction of the longitudinal axis of the strut 75 , away from the strut axis B, out.

At the first seat segment 14 of the vehicle seat 1 is a locking latch 50 appropriate. The locking bracket 50 is in the present case designed as a wire with a round cross-section. The locking bracket 50 is bent several times and has a shape like in 5 shown.

The locking bracket 50 has a first locking area 51 and a second locking area 52 on. Each of the locking areas 51 . 52 runs straight in the axial direction. The locking areas 51 . 52 are arranged offset to each other in the axial direction and in the tangential direction. In the present case are the locking areas 51 . 52 in the radial direction equidistant from the pivot axis A. But it is also conceivable that the locking areas 51 . 52 are arranged offset from each other in the radial direction.

By means of the locking bracket 50 and the strut 75 is the first seating segment 14 in a first tumble position, which in 1 . 3 . 8th and 9 is shown, as well as in a second tumble position, which in 2 . 4 . 10 and 11 is shown, definable.

In the first tumble position is the seat part 2 in the present case inclined by a first inclination angle of about 80 ° relative to the bottom of the vehicle structure. The first tumble position is thus associated with an inclination angle of about 80 °. In the second tumble position is the seat part 2 in the present case inclined at a second inclination angle of about 72 ° relative to the floor of the vehicle structure. The second tumble position is thus associated with an inclination angle of about 72 °.

When the hook mouth 72 of the hook 71 the strut 75 the first locking area 51 of the locking bracket 50 embraces, so is the seat part 2 inclined by the first inclination angle relative to the floor of the vehicle structure. The first tumble position is thus the first locking area 51 assigned. When the hook mouth 72 of the hook 71 the strut 75 the second locking area 52 of the locking bracket 50 embraces, so is the seat part 2 inclined by the second inclination angle relative to the floor of the vehicle structure. The second tumble position is thus the second locking area 52 assigned.

To set a tumble position, the seat part 2 pivoted about the pivot axis A to the seat part 2 is aligned in a desired tumble position associated inclination angle to the bottom of the vehicle structure. Subsequently, the strut 75 around the strut axis B panned until the hook mouth 72 of the hook 71 the locking area associated with the tumble position 51 . 52 of the locking bracket 50 embraces. The gas spring 60 acts on the seat part 2 so with a moment about the pivot axis A that the locking bracket 50 in the hook mouth 72 of the hook 71 pressed into it and the seat part 2 will be held in this position.

To leave a tumble position, the seat part 2 about the pivot axis A slightly backwards against the force of the gas spring 60 swung up the hook mouth 72 of the hook 71 the locking bracket 50 releases, so until the locking latch 50 is located immediately in front of the opening of the hook mouth.

Subsequently, the strut 75 pivoted about the strut axis B until the locking bracket 50 the hook mouth 72 leaves. Then the strut can 75 be placed in a parking position and the seat part 2 can be pivoted about the pivot axis A until the locking devices 90 lock with the bolts attached to the vehicle structure. The first seat segment is then back in the table position.

The features disclosed in the foregoing description, the claims and the drawings may be of importance both individually and in combination for the realization of the invention in its various forms.

LIST OF REFERENCE NUMBERS

1

 vehicle seat

2

 seat part

3

 backrest

7

 headrest

8th

 Front foot

9

 Back foot

14

 First seat segment

15

 Second seat segment

50

 locking clip

51

 first locking area

52

 second locking area

60

 Gas spring

71

 hook

72

 hook mouth

75

 strut

90

 locking device

A

 swivel axis

B

 strut axis

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2014/019931 A1 [0002]
• DE 102004041449 B3 [0035]
• WO 2004069585 A1 [0038]

Claims (10)

Adjustable vehicle seat ( 1 ), comprising a foot ( 8th ), by means of which the vehicle seat ( 1 ) is connectable to a vehicle structure, and a seat part ( 2 ), which is about a pivot axis (A) relative to the foot ( 8th ) is pivotable, and which a locking bracket ( 50 ) for cooperation with a strut ( 75 ), characterized in that the locking bracket ( 50 ) at least two locking areas ( 51 . 52 ), which are arranged offset in the tangential direction to each other. Adjustable vehicle seat ( 1 ) according to claim 1, characterized in that the locking areas ( 51 . 52 ) are arranged offset in the axial direction to each other. Adjustable vehicle seat ( 1 ) according to one of the preceding claims, characterized in that the locking areas ( 51 . 52 ) are offset in the radial direction to each other. Adjustable vehicle seat ( 1 ) according to one of claims 1 to 2, characterized in that the locking areas ( 51 . 52 ) are arranged equidistant from the pivot axis (A) in the radial direction. Adjustable vehicle seat ( 1 ) according to one of the preceding claims, characterized in that the locking areas ( 51 . 52 ) straight in the axial direction. Adjustable vehicle seat ( 1 ) according to one of the preceding claims, characterized in that the locking bracket ( 50 ) is designed as a wire with a circular cross-section. Adjustable vehicle seat ( 1 ) according to one of the preceding claims, characterized in that a strut ( 75 ), which has a hook ( 71 ) with a hooked mouth ( 72 ) for selectively encompassing one of the locking areas ( 51 . 52 ) having, Adjustable vehicle seat ( 1 ) according to claim 7, characterized in that the strut ( 75 ) about a strut axis (B), which runs parallel to the pivot axis (A), is pivotally attachable to the vehicle structure. Adjustable vehicle seat ( 1 ) according to one of claims 7 to 8, characterized in that the hook ( 71 ) is movable in the axial direction. Adjustable vehicle seat ( 1 ) according to one of claims 7 to 9, characterized in that a gas pressure spring ( 60 ) is provided, which the seat part ( 2 ) acted upon in such a way that the locking bracket ( 50 ) in the hook mouth ( 72 ) is pressed into it.

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