DEVICE FOR THE HEIGHT ADJUSTMENT OF A VEHICLE SEAT

Abstract

Device for the height adjustment of a vehicle seat, wherein the device comprises a lower part for arranging on a vehicle, wherein the device has an upper part for arranging a vehicle seat and/or for arranging a rotary unit for a vehicle seat, wherein the lower part and the upper part are coupled together via an actuating arm, wherein the device has a damping member. The device is characterized in that the damping member is present between the upper part and the lower part, wherein the damping member is configured to alter a spacing of the upper part relative to the lower part and wherein the device comprises a spring element and the spring element is present on the device such that it acts counter to a direction of extension of the damping member.

Claims

1. A device for the height adjustment of a vehicle seat, wherein the device comprises a lower part for arranging on a vehicle, and an upper part for arranging a vehicle seat and/or for arranging a rotary unit for a vehicle seat, wherein the lower part and the upper part are coupled together via an actuating arm, wherein the device has a damping member present between the upper part and the lower part, wherein the damping member is configured to alter a spacing of the upper part relative to the lower part and wherein the device comprises a spring element present on the device such that it acts counter to a direction of extension of the damping member.

2. The device for the height adjustment of a vehicle seat as claimed in claim 1, wherein the device has two or more actuating arms, wherein the upper part and the actuating arms are arranged in a parallelogram-like manner and are present so as to be adjustable relative to one another.

3. The device for the height adjustment of a vehicle seat as claimed in claim 1, wherein the spring element is arranged on the lower part.

4. The device for the height adjustment of a vehicle seat as claimed in claim 1, wherein the upper part is movably mounted between a stop of the spring element and a stop of the damping member.

5. The device for the height adjustment of a vehicle seat as claimed in claim 1, wherein the spring element is arranged between the lower part and a first actuating arm, in such a manner that the spring element acts counter to a maximum extension.

6. The device for the height adjustment of a vehicle seat as claimed in claim 1, wherein a rotational axis R1, R2 of the spring element is present parallel to a direction of movement of the upper part.

7. The device for the height adjustment of a vehicle seat as claimed in claim 1, wherein the spring element is coupled to an actuating arm.

8. The device for the height adjustment of a vehicle seat as claimed in claim 7, wherein a pivot pin of an actuating arm is present on the lower part in a positionally fixed manner.

9. The device for the height adjustment of a vehicle seat as claimed in claim 1, wherein the device comprises at least six pivot pins.

10. The device for the height adjustment of a vehicle seat as claimed in claim 1, wherein the upper part is present so as to be rotationally movable relative to the lower part.

11. The device for the height adjustment of a vehicle seat as claimed in claim 1, wherein a spring force of the spring element is adjustable.

12. The device for the height adjustment of a vehicle seat as claimed in claim 1, wherein the device comprises a switch which is designed to control and/or to regulate an extension of the damping member.

13. A vehicle seat having a device as claimed in claim 1.

14. A vehicle having a device and/or a vehicle seat as claimed in claim 1.

15. The device for the height adjustment of a vehicle seat as claimed in claim 5, wherein the spring element acts counter to the damping member.

16. A device for the height adjustment of a vehicle seat, wherein the device comprises a lower part for arranging on a vehicle and an upper part for arranging a vehicle seat and/or for arranging a rotary unit for a vehicle seat, wherein the lower part and the upper part are coupled together via at least two actuating arms, wherein the device has a damping member, and wherein the upper part and the actuating arms are arranged in a parallelogram-like manner and are present so as to be adjustable relative to one another.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0045] An exemplary embodiment is described in more detail with reference to the following schematic drawings, specifying further details and advantages.

[0046] FIG. 1 shows a perspective view of a device according to the present invention obliquely to the side from the front;

[0047] FIG. 2 shows a perspective view of the device according to FIG. 1 obliquely to the side from the bottom rear;

[0048] FIG. 3 shows a rear view of the device according to FIG. 1;

[0049] FIG. 4 shows a side view of the device according to FIG. 1;

[0050] FIG. 5 shows a view from below of the device according to FIG. 1; and

[0051] FIGS. 6 and 7 show in each case a sectional view through the device according to FIG. 1 corresponding to the cutting lines A, B shown in FIG. 5.

DETAILED DESCRIPTION OF THE INVENTION

[0052] A device 1 according to the present invention comprises a lower part 2, an upper part 3, six actuating arms 4 to 9, a damping member 10 and two spring elements 11, 12 (FIGS. 1 to 4).

[0053] The lower part 2 has, for example, attachment means 13 to 18, the lower part 3 being able to be arranged thereby, in particular, in a positionally fixed manner, on a vehicle (not shown). The upper part 3 comprises attachment elements 19 in order to fasten a rotary unit (not shown) or a vehicle seat (not shown). For the sake of the clarity of the figures, not all of the attachment elements 19 of the upper part 3 are provided with a reference numeral.

[0054] The lower part 2 is advantageously configured to be U-shaped, for example, bent in a U-shaped manner. For example, the lower part 2 comprises two side elements 24, 25 oriented perpendicular to a lower face 23 of the lower part 2. The side elements 24, 25 are, for example, bent at an angle to the lower face 23 and are present so as to protrude from the lower part 2.

[0055] On a side element 24, 25 in each case two actuating arms 4, 6 and/or 7, 9 are rotatably mounted on one respective rotary pin 26, 27 and/or 28, 29. Each of the actuating arms 4, 6, 7, 9 which is rotatably mounted on a side element 24, 25 advantageously has two further rotary pins. In FIGS. 6, 7, the further rotary pins for a set consisting of the three actuating arms 4-6 are denoted by the rotary pin reference numerals 30-33. A further set consisting of the actuating arms 7-9 is advantageously present in an identical manner, for example, mirror-inverted relative to the actuating arms 4-6. The rotary pins 26 and 28 and/or 27 and 29 may also be present in each case as a single, in particular, continuous, rotary pin.

[0056] Each of the actuating arms 4, 6 is rotatably mounted on a first rotary pin 26, 27 on the lower part 2 and, pivotably, in particular, rotatably, connected to the upper part 3 via a further rotary pin 30, 32. Moreover, the actuating arms 4, 6 are movably coupled to a further actuating arm 5 by two further rotary pins 31, 33. As a result, the actuating arms 4-6 and the upper part 3 form a parallelogram which is advantageously connected so as to be pivotably movable relative to the lower part 2 via the rotary pins 26, 27.

[0057] The actuating arms 4, 6, 7, 9 have, for example, a triangular shape. As a result, the upper part 3 is able to be mounted in a movable manner relative to the lower part 2 via the actuating arms 4, 6, 7, 9 such that the upper part 3, when moved relative to the lower part 2, covers a comparatively large movement path in a vertical direction of movement relative to a horizontal direction of movement. In the arranged state of the device on the vehicle, the vertical direction of movement may be seen to be perpendicular to a direction of travel and in the direction of the vehicle floor and/or in the direction of the vehicle roof. The horizontal direction of movement may be seen to be parallel to the direction of travel.

[0058] The actuating arms 5, 8 are advantageously present as elongated and/or rod-shaped, in particular, rigid, actuating elements.

[0059] The damping member 10 is fastened, in particular, fixed, in a positionally fixed manner to a fastening element 20 of the lower part 2 by a first end 21. The damping member 10 is arranged, for example, mounted, in particular, fixed in a positionally fixed manner, on the upper part 3 by an opposing end 22 spaced apart from the first end 21. The damping member 10 is advantageously configured as a folding bellows. If the damping member 10 is subjected to compressed air, for example, the damping member 10 extends, in particular, in the vertical direction and thus pushes the upper part 3 away from the lower part 2 so that the vertical spacing between the lower part 2 and the upper part 3 increases (see FIGS. 3, 4). Due to its displacement on the lower part 2 via the actuating arms 4 to 9, the upper part 3 moves not only in the vertical direction away from the lower part 2 but also in the horizontal direction relative to the lower part 2. Advantageously, the upper part 3 moves approximately perpendicular to the lower part 2. The actuating arms 4, 6, 7, 9 in this case rotate about a rotational axis of the rotary pins 26-29.

[0060] When altering the spacing of the upper part 3 relative to the lower part 2 the actuating arms 5, 8 pivot both in the horizontal direction and in the vertical direction, wherein the horizontal movement component preferably predominates relative to the vertical movement component. Advantageously, the actuating arms 5, 8 move approximately parallel to the lower face 23 of the lower part 2.

[0061] The spring elements 11, 12 are configured, for example, as flat spiral springs and, for example, fastened, in particular fixed, to the lower part 2. The spring elements 11, 12 are, for example, fastened to the lower part 2 such that a rotational axis R1, R2 of the spring elements 11, 12 is oriented perpendicular to the lower face 23. In particular, the rotational axis R1, R2 of the spring elements 11, 12 is oriented in the vertical direction. One end 34 and/or 35 of the spring element 11 and/or 12 acts on the actuating arm 5 and/or 8 such that the spring element 11 and/or 12 acts with a spring force on the actuating arm 5 and/or 8. As a result, the spring element 11 and/or 12 acts, in particular, counter to a horizontal movement of the actuating arm 5 and/or 8 and thus, in particular, a vertical movement of the upper part 3 away from the lower part 2. The spring element 11 and/or 12 is arranged on the device 1 such that the upper part 3 is pulled by the spring force of the spring element 11 and/or 12 in the direction of the lower part 2. The spring element 11 and/or 12, for example, is arranged on the device 1 such that the spring force of the spring element 11 and/or 12 acts counter to an extension force of the damping element 10.

[0062] Advantageously the spring element 11 and/or 12 is configured and present on the device 1 such that, when moved, the upper part 3 does not reach a maximum spacing relative to the lower part 2 which is defined by the mechanism of the actuating arms 4-9.

[0063] The device 1 also comprises, for example, a switch 36, a supply line of the damping member 10 being controllable thereby. As a result, a pressure is adjustable inside the damping member 10.

LIST OF REFERENCE NUMERALS

[0064] 1 Device [0065] 2 Lower part [0066] 3 Upper part [0067] 4-9 Actuating arm [0068] 10 Damping member [0069] 11 Spring element [0070] 12 Spring element [0071] 13-18 Attachment means [0072] 19 Attachment element [0073] 20 Fastening element [0074] 21 End [0075] 22 End [0076] 23 Lower face [0077] 24, 25 Side element [0078] 26-33 Rotary pin [0079] 34, 35 End [0080] 36 Switch