SCISSORS-TYPE FRAME FOR A VEHICLE SEAT AND METHOD FOR PRODUCING A SUBSTRUCTURE OF A VEHICLE SEAT

• US 20100117428A1
• Filed: 11/06/2009
• Published: 05/13/2010
• Est. Priority Date: 11/06/2008
• Status: Active Grant

• Current Assignee: Grammer AG (Ningbo Jifeng Auto Parts Co.,Ltd.)
• Original Assignee: Grammer AG (Ningbo Jifeng Auto Parts Co.,Ltd.)
• Inventors: Renner, Manfred, Dieling, Erich, Lorey, Alexander, Deml, Johann, Kohl, Josef
• Granted Patent: US 8,540,316 B2
• Time in Patent Office: Days
• US Class Current: 297/344.150
• CPC Class Codes: B60N 2/162 Scissors-like structure
• CPC Class Codes: B60N 2/502 attached to the base of the seat B60N2/504 takes precedence
• CPC Class Codes: B60N 2/505 Adjustable suspension including height adjustment
• CPC Class Codes: B60N 2/508 Scissors-like structure
• CPC Class Codes: B60N 2/68 Seat frames
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

To be able to produce a scissors-type frame of a vehicle seat in a quick and easy manner, the present invention is directed to a scissors-type frame for a vehicle seat, in particular for a motor vehicle seat, comprising a first scissors element and a second scissors element, wherein the scissors-type frame is height-adjustable by means of the two scissors elements, and wherein the scissors-type frame is characterized in that one of the two scissors elements passes through the other of the two scissors elements.

Claims

1. A scissors-type frame for a vehicle seat, comprising first and second scissors elements, wherein at least one of the first and second scissors elements passes through the other scissors element and the first and second scissors elements are configured to adjust the height of the scissors-type frame.

2. The scissors-type frame according to claim 1, wherein the first scissors element is arranged within a peripherally closed material cutout of the second scissors element.

3. The scissors-type frame according to claim 1, wherein the first scissors element encompasses the second scissors element.

4. The scissors-type frame according to claim 1, wherein the first and second scissors elements are rotatably mounted about a common bearing axle.

5. The scissors-type frame according to claim 1, wherein at least one of the first and second scissors elements is made by forming from a semi-finished product.

6. The scissors-type frame according to claim 5, wherein the first and second scissors elements are made by forming from a semi-finished product.

7. The scissors-type frame according to claim 6, wherein the first and second scissors elements is formed by at least one of a one-piece punched sheet metal or by bending.

8. The scissors-type frame according to claim 1, wherein at least one of the first and second scissors elements is formed by at least one of a one-piece punched sheet metal or by bending.

9. The scissors-type frame according to claim 1, wherein at least one of the first and second scissors elements has a through-opening configured to receive a damper.

10. The scissor-type frame according to claim 1, wherein the second scissor element is arranged within the first scissor element and further comprising a damper configured to pass through at least one of the first and second scissors elements while the second scissor element is arranged within the first scissor element.

11. The scissor-type frame according to claim 1, further comprising a seat and a base, wherein:

the seat is integrally mounted to the first scissors element in a rotational manner by means of a rotary bearing and the base is integrally mounted to the first scissors element in a translational manner by means of a sliding bearing; and

the seat is integrally mounted to the second scissors element in a rotational manner by means of a rotary bearing and the base is integrally mounted to the second scissors element in a translational manner by means of a sliding bearing.

12. The scissor-type frame according to claim 11, further comprising a damper mounted on at least one of the seat or the base rotary bearings.

13. The scissor-type frame according to claim 12, wherein the damper is mounted on the base rotary bearing.

14. The scissors-type frame according to claim 1, further comprising at least one bearing eye integrally formed with at least one of the first or second scissor elements or at least one of a seat or base integrally mounted to the at least one of the first or second scissor elements, wherein the bearing eye is configured to move at least one of the first or second scissors elements with respect to at least one of the seat or the base.

15. The scissors-type frame according to claim 14, wherein the at least one bearing eye is formed in one piece with at least one of the first and second scissors elements or at least one of the seat or the base.

16. The scissors-type frame according to claim 1, further comprising at least one bearing pin integrally formed with at least one of the first or second scissor elements or at least one of a seat or a base integrally mounted to the at least one of the first or second scissor elements, wherein the bearing pin is configured to move at least one of the first or second scissor elements with respect to at least one of the seat or the base.

17. The scissors-type frame according to claim 16, wherein the at least one bearing pin is formed in one piece with at least one of the first or second scissors elements or at least one of the seat or the base.

18. The scissor-type frame according to claim 16, wherein the bearing pin comprises a sliding element.

19. The scissor-type frame according to claim 18, wherein the sliding element is pushed onto the bearing pin.

20. The scissors-type frame according to claims 18, wherein the sliding element is made from plastic.

21. The scissors-type frame according to claim 16, wherein at least one of the seat or the base comprises a guide configured to receive the bearing pin.

22. The scissors-type frame according to claim 21, wherein the guide is a material cutout in the at least one of the seat or the base.

23. The scissor-type frame according to claim 1, further comprising:

at least one bearing pin associated with at least one of the first or second scissor elements; and

a seat and a base, wherein at least one of the seat or the base has a guide configured to receive the at least one bearing pin;

wherein the at least one bearing pin is slidably mounted in the guide.

24. The scissors-type frame according to claim 1, further comprising:

a first connector formed from at least one of the first or second scissors element; and

a second connector formed from at least one of a seat or a base;

wherein the second connector is configured to receive the first connector.

25. The scissor-type frame according to claim 24, wherein the first connector is guided within the second connector.

26. The scissor-type frame according to claim 1, further comprising:

a spring assembly having at least one spring ; and

at least one of a seat or a base;

wherein the at least one spring is arranged between at least one of the first or second scissors elements and at least one of the seat or the base.

27. The scissors-type frame according to claim 25, further comprising a spring support arranged in a roll-off manner at one end at least one of the first or second scissors elements.

28. The scissor-type frame according to claim 27, wherein the spring support comprises a bent base body that is bent about one of its longitudinal axes.

29. The-type frame according to claim 27, wherein the spring support comprises a notch into which at least one of the first or second scissors elements protrudes with a tab.

30. The scissors-type frame according to claim 27, wherein the spring support comprises at least one spring end holder configured to connect the spring support to a spring end of the at least one of the first or second spring elements.

31. A substructure for a motor vehicle seat, comprising:

a scissors-type frame having first and second scissors elements, wherein the first scissors element passes through the second scissors element and the first and second scissors elements are configured to adjust the height of the scissors-type frame.

a seat and a base, wherein at least one of the first and second scissors elements is mounted to the seat in a rotational manner by means of a rotary bearing and mounted to the base in a translational manner by means of a sliding bearing and at least one of the first and second scissors elements is mounted to the base in a rotational manner by means of a rotary bearing and mounted to the seat in a translational manner by means of a sliding bearing.

32. The substructure for a motor vehicle seat according to claim 31, further comprising a damper mounted on at least one of the seat or the base rotary bearings.

33. A method for producing a substructure of a motor vehicle seat in a scissors-type frame having a first scissors element rotatably connected to a second scissors element, comprising:

pushing the first scissors element through the second scissors element; and

non-detachably connecting the first scissors element to the second scissors element.

34. The method according to claim 33, wherein the first and second scissors elements are formed from metal sheets substantially free from weld seams.

35. The method according to claim 34, further comprising:

connecting a seat and a base of the scissors-type frame to each other in an articulated manner via the first and second scissor elements;

wherein at least one of the seat and the base are formed from metal sheets substantially free from weld seams.