Scissors-type frame for a vehicle seat and method for producing a substructure of a vehicle seat

• US 8,540,316 B2
• Filed: 11/06/2009
• Issued: 09/24/2013
• 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: Deml, Johann, Dieling, Erich, Kohl, Josef, Lorey, Alexander, Renner, Manfred
• Primary Examiner(s): Dunn, David
• Assistant Examiner(s): Abraham, Tania
• Application Number:
  US12/614,241
• Publication Number:
  US 20100117428A1
• Time in Patent Office: 1,418 Days
• Field of Search: 297/344.12, 29734415-34417, 248/421, 248/564, 248/588, 248/157, 248/188.2
• US Class Current: 297/344.15
• 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;

and

a spring support arranged in a roll-off manner at one end of at least one of the first or second scissors elements, wherein the spring support comprises a notch into which at least one of the first or second scissors elements protrudes with a tab.

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 are 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 transitional manner by means of a sliding bearing and the base is integrally mounted to the second scissors element in a rotational manner by means of a rotary 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, wherein at least one of the first or second scissor elements comprises at least one bearing eye, further comprising at least one bearing eye formed within 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 eyes are 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 bearing eyes are 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, wherein at least one of the first or second scissor elements comprises at least one bearing pin, wherein the at least one bearing pin is configured to allow at least one of the first or second scissor elements to move with respect to at least one of a seat or a 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.

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 scissor-type frame according to claim 1, wherein the spring support comprises a bent base body that is bent about one of its longitudinal axes.

28. The scissors-type frame according to claim 1, 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 and second spring elements.

29. 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;

a base; and

a spring support arranged in a roll-off manner at one end of at least one of the first or second scissors elements, wherein the spring support comprises a notch into which at least one of the first or second scissors elements protrudes with a tab,

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.

30. The substructure for a motor vehicle seat according to claim 29, further comprising a damper mounted on at least one of the seat or the base rotary bearings.