EP1373015A1

EP1373015A1 - Vehicle seat with bearing device

Info

Publication number: EP1373015A1
Application number: EP02745192A
Authority: EP
Inventors: Martin Braun; Jürgen Schilling; Peter Buck; Michael Böhmer
Original assignee: Keiper GmbH and Co
Current assignee: Johnson Controls Components GmbH and Co KG
Priority date: 2001-03-28
Filing date: 2002-03-16
Publication date: 2004-01-02
Also published as: DE10115243A1; JP2004518518A; BR0204502A; US20030168897A1; WO2002081259A1; DE10115243B4

Abstract

A vehicle seat, especially the seat of a motor vehicle, comprising a bearing device (11) disposed between two components (7,9) which are at least slightly moveable in relation to each other. Said bearing device (11) comprises at least one elastic fixing element (21) which is used to join both components(7, 9) transversally with respect to the direction of movement.

Description

Vehicle seat with storage device

The invention relates to a vehicle seat, in particular a motor vehicle seat, with the features of the preamble of claim 1.

In a vehicle seat of this type, a seat pan is pivotally mounted on the front on a cross tube of a seat frame and resiliently on the rear of the seat frame. If the occupant is loaded, the seat pan swings slightly around the cross tube. A rigid mounting bracket is provided as the bearing device, which surrounds the cross tube from below and is fastened to the seat shell with clips. From above, the seat shell rests on the cross tube via a counter bearing. This training leaves nothing to be desired.

The invention is based on the object of improving a vehicle seat of the type mentioned. This object is achieved by a vehicle seat with the features of claim 1. Advantageous refinements are the subject of the dependent claims.

Because the fastening element is elastic, it can rest against at least one of the parts to be stored without play. The fastening element is preferably also mounted in the bearing device under pretension, in order to simultaneously compensate for tolerances and to be rattle-free when driving, ie to prevent disturbing noises in the bearing device. The command Stigungselement is preferably designed as a spring clip, other spring element or other elastic element.

The design according to the invention is particularly advantageous if the fastening element at least partially surrounds the first component of the bearing device forming the axis for a pivoting movement in the circumferential direction and is fastened to the pivotable second component. To simplify assembly, the fastener is direct, i.e. without screwing or clips or other additional fastening elements, attached to the swiveling second component.

A bearing shell provided for reducing the friction, preferably made of a different material than the components which can be pivoted relative to one another, can be arranged between the fastening element and / or the pivotable second component on the one hand and the first component forming the axis for the pivoting movement on the other hand in its radial direction and almost completely enclose the first component. The bearing shell can be constructed in several parts or in one part. Such a bearing shell can be attached to the fastener.

The invention is explained in more detail below with reference to three exemplary embodiments shown in the drawing. Show it

1 is a perspective, sectional partial view of the first embodiment,

2 is a schematic side view of the vehicle seat,

3 shows a vertical section through the storage device according to the invention along the line III-III in FIG. 1, 4 shows a representation of the spring clip according to the invention and the bearing shell corresponding to FIG. 3, but in the untensioned state before assembly,

Fig. 5 is an illustration corresponding to FIG. 3 for the second embodiment, and

Fig. 6 is an illustration corresponding to FIG. 3 for the third embodiment.

A vehicle seat 1 for a motor vehicle has in its seat part a seat frame 3 which carries a seat cushion 5 in the manner described below. The directional information used relates to the usual arrangement of the driving

(Tool seat 1 in the motor vehicle and its usual direction of travel (x direction).

In its front area, the seat frame 3 has a hollow cylindrical cross tube 7, running horizontally and transversely to the direction of travel (i.e. in the y direction), as a first component, on which the front area of the seat shell 9 as a second

Component is attached, which in turn carries the seat cushion 5. To connect the

Seat shell 9 with the cross tube 7 is one at both end sections of the cross tube 7

Bearing device 11 is provided, by means of which the seat shell 9 can be pivoted relative to the cross tube 7 at least over a certain angular range, for example if the rear region of the seat shell 9 is spring-mounted and is pivoted by an occupant.

In the first exemplary embodiment, each bearing device 11 comprises an approximately semi-cylindrical, short plastic bearing shell 13 which surrounds the cross tube 7 in the circumferential direction thereof almost over half and extends in the axial direction of the cross tube 7 and which bears on the underside of the cross tube 7. The radius of curvature of the inside of the bearing shell 13 corresponds approximately to that of the outside of the cross tube 7. The bearing shell 13 lies on the opposite Top of the cross tube 7 on an approximately also semi-cylindrical counter bearing 15, which has the same radius of curvature on the inside, but a slightly larger length in the y direction. The counter bearing 15 is located in a semi-cylindrically curved receptacle on the underside of the seat shell 9 and is fastened to it by a clip connection. The counter bearing 15 is thus arranged between the seat shell 9 and the cross tube 7 in its radial direction.

The bearing device 11 has as a fastening element transverse to the direction of movement between the seat shell 9 and the cross tube 7 a spring clip 21 which holds the bearing shell 13 in contact with the cross tube 7, i.e. with respect to the cross tube 7 in its radial direction. The one-piece, mirror-symmetrical spring clip 21, which is designed in the manner of a leaf spring made of spring steel, has a central section 23 and a side section 25 adjoining it laterally (in the x-direction in front and behind). In the assembled, tensioned state of the spring clip 21, the middle section 23 lies against the outside of the bearing shell 13 pointing downward (i.e. against the z direction) and, in an untensioned state, has a slightly larger radius of curvature than this outside of the bearing shell 13 before assembly.

Each side section 25 is curved upward from the central section 23 and ends in an inwardly curved hook 27. During assembly, the side section 25 is pushed from below with its hook 27 through an opening 29 in the x-direction in front of or behind the cross tube 7 in the seat shell 9, the spring clip 21 first being slightly bent, ie tensioned, until the Hook 27 is completely pushed through and engages behind the seat shell 9 in the edge region of the opening 29. The spring clip 21 relaxes slightly, but remains biased. The seat shell 9 can now rotate relative to the cross tube 7, for example in the case of the aforementioned load by an occupant. The bearing shell 13 and the counter bearing 15 are equal to tolerances so held in abutment on the cross tube 7 that the seat shell 9 is not mounted too stiffly, but also no disturbing rattling noises occur.

A second exemplary embodiment largely coincides with the first exemplary embodiment, so that the same and equivalent parts have reference numerals 100 higher. In the second exemplary embodiment, the bearing device 111 between the cross tube 107 and the seat shell 109 has the same spring clip 121, but the bearing shell 113 and the counter bearing 115 are designed as a common plastic injection molded part and are connected to one another by a thin film hinge 117. The bearing shell 113 is thereby pre-positioned in the radial direction until the spring clip 121 is attached.

A third exemplary embodiment also largely corresponds to the first exemplary embodiment, so that the same and equivalent parts have reference numbers 200 higher. In the third exemplary embodiment, the bearing device 211 between the cross tube 207 and the seat shell 209 has the same counter bearing 215, but the bearing shell 213 is fastened to the otherwise unchanged spring clip 221 by a clip connection 219. The bearing shell is also brought into a predefined position before assembly.

Modifications are also conceivable in which the bearing shells and counterbearing can be dispensed with by a suitable coating of the cross tube and the spring clip. LIST OF REFERENCE NUMBERS

vehicle seat

seat frame

Seat cushion, 107, 207 cross tube, first component, 109, 209 seat shell, second component 1,111,211 bearing device 3,113,213 bearing shell 5,115,215 counter bearing 1,121,221 spring clip, fastening element 3 middle section 5 side section 7 hook 9 opening 17 film hinge 19 clip connection

Claims

claims

1. A vehicle seat, in particular a motor vehicle seat, with a bearing device (11; 111; 211) between two components (7, 9; 107, 109; 207, 209) that are at least slightly movable relative to one another, the bearing device (11;

111; 211) has at least one fastening element (21; 121; 221) for connecting the two components (7, 9; 107, 109; 207, 209) transversely to the direction of movement, characterized in that the fastening element (21; 121; 221) is elastic is.

2. Vehicle seat according to claim 1, characterized in that the fastening element (21; 121; 221) is mounted under prestress in the bearing device (11; 111; 211).

3. Vehicle seat according to claim 2, characterized in that the fastening element (21; 121; 221) is designed as a spring clip.

4. Vehicle seat according to one of claims 1 to 3, characterized in that the fastening element (21; 121; 221) which forms the axis for a pivoting movement, first component (7; 107; 207) of the bearing device (11; 111; 211) at least partially encloses in the circumferential direction and is fastened to the pivotable second component (9; 109; 209).

5. Vehicle seat according to claim 4, characterized in that the fastening element (21; 121; 221) is attached directly to the second component (9; 109; 209).

6. Vehicle seat according to one of claims 1 to 5, characterized in that between the fastening element (21; 121; 221) and the first component (7; 107; 207) in the radial direction of which at least one bearing shell (13, 15; 113, 115; 213, 215) is arranged.

7. Vehicle seat according to claim 6, characterized in that two separately formed bearing shells (13, 15; 213, 215) are provided which together almost completely enclose the first component (7; 207) in its circumferential direction.

8. Vehicle seat according to claim 6, characterized in that an integrally formed bearing shell (113, 115) is provided which almost completely surrounds the first component (107) in its circumferential direction.

9. Vehicle seat according to one of claims 6 to 8, characterized in that the bearing shell (213) is attached to the fastening element (221).

10. Vehicle seat according to one of claims 6 to 9, characterized in that the bearing shell (13, 15; 113, 115; 213, 215) from one of the two components (7, 9; 107, 109; 207, 209) different Material is made.