Adjusting device for longitudinal adjustment of a vehicle seat and retainer for use in such an adjusting device

Patent metadata

Field	Value
Publication number	US-10279706-B2
Application number	US-201615279714-A
Country	US
Kind code	B2
Filing date	Sep 29, 2016
Priority date	Sep 29, 2016
Publication date	May 7, 2019
Grant date	May 7, 2019

Abstract

An adjusting device for longitudinal adjustment of a vehicle seat comprises a first rail 2 and a second rail 1 movably guided relative to the first rail 2. A linear guide 5 extending in the longitudinal direction is disposed between the two rails 1, 2 in a bearing area, wherein the linear guide 5 comprises a retainer 6 and a plurality of rolling elements 70, 71. The retainer 6 comprises a side wall 60, a plurality of recesses 66 being formed in the side wall 60. The rolling elements 70, 71 are supported in the recesses 66 of the retainer 6 spaced apart from each other in the longitudinal direction. According to the invention the rolling elements include a set of rolling elements consisting of at least one roller 71 and at least one ball 70.

First claim

What is claimed is:

1. An adjusting device for longitudinal adjustment of a vehicle seat, comprising:
a first rail and a second rail, the second rail being movably guided in a longitudinal direction relative to the first rail, and
a linear guide extending in the longitudinal direction and disposed between the first rail and the second rail in a bearing area, wherein
the linear guide comprises a retainer and a plurality of rolling elements,
the retainer comprises a bottom, a plurality of recesses being formed in the bottom of the retainer spaced apart from each other in the longitudinal direction, and
the rolling elements include a set of rolling elements comprising a single roller and a plurality of balls, wherein the single roller is supported in a foremost recess of the plurality of recesses formed in the bottom or in a rearmost recess of the plurality of recesses formed in the bottom, and the plurality of balls are supported in neighboring recesses formed in the bottom.

2. The adjusting device for longitudinal adjustment of a vehicle seat as claimed in claim 1 , wherein the recesses are delimited by side walls extending perpendicular to the longitudinal direction, said side walls having concavely curved surfaces.

3. The adjusting device for longitudinal adjustment of a vehicle seat as claimed in claim 2 , wherein the radii of curvature of the concavely curved surfaces of the side walls of the recesses are identical and wherein the outer diameters of the rollers and balls are identical so that the recesses are configured for optionally supporting rollers or balls.

4. The adjusting device for longitudinal adjustment of a vehicle seat as claimed in claim 2 , wherein the side walls are formed by distance members having the same length so that the recesses are spaced apart from each other at equidistant spacing.

5. The adjusting device for longitudinal adjustment of a vehicle seat as claimed in claim 4 , wherein the distance members are interconnected by longitudinal webs extending in the longitudinal direction and perpendicularly to the side walls.

6. An adjusting device for longitudinal adjustment of a vehicle seat, comprising:
a first rail and a second rail, the second rail being movably guided in a longitudinal direction relative to the first rail, and
a linear guide extending in the longitudinal direction and disposed between the first rail and the second rail in a bearing area, wherein
the linear guide comprises a retainer and a plurality of rolling elements,
the retainer comprises a bottom, a plurality of recesses being formed in the bottom of the retainer spaced apart from each other in the longitudinal direction, and
the rolling elements include a set of rolling elements comprising two rollers and a plurality of balls, wherein a first roller of the two rollers is supported in a foremost recess of the plurality of recesses formed in the bottom, a second roller of the two rollers is supported in a rearmost recess of the plurality of recesses formed in the bottom, and the plurality of balls are supported in neighboring recesses formed in the bottom.

7. The adjusting device for longitudinal adjustment of a vehicle seat as claimed in claim 1 , wherein
the first rail is a lower rail of the adjusting device and comprises a first rail base leg, a connecting leg adjoining the first rail base leg and extending vertically upwardly and an inclined supporting leg, and
the second rail is an upper rail of the adjusting device and comprises a second rail base leg, an L-leg projecting substantially perpendicularly, a second rail connecting leg, which adjoins the L-leg and extends in parallel with the second rail base leg, and a bearing leg, which extends relative to the second rail connecting leg under an acute angle and towards an interior of the second rail, wherein
a lateral bearing area is formed by the first rail base leg and the connecting leg, and
a first set of the rolling elements is supported in the retainer between the first rail base leg and the connecting leg.

8. The adjusting device for longitudinal adjustment of a vehicle seat as claimed in claim 1 , wherein the retainer is formed of a plastic material or a resin.

9. A retainer for supporting a plurality of rolling elements, for use in an adjusting device for longitudinal adjustment of a vehicle seat, comprising:
a bottom having a plurality of recesses formed in the bottom, wherein
the rolling elements are supported in the recesses formed in the bottom of the retainer spaced apart from each other in a longitudinal direction of the retainer, and
the rolling elements include a set of rolling elements comprising a single roller and a plurality of balls, wherein the single roller is supported in a foremost recess of the plurality of recesses formed in the bottom or in a rearmost recess of the plurality of recesses formed in the bottom, and the plurality of balls are supported in neighboring recesses formed in the bottom.

10. The retainer for supporting a plurality of rolling elements as claimed in claim 9 , wherein the recesses are delimited by side walls extending perpendicular to the longitudinal direction, said side walls having concavely curved surfaces.

11. The retainer for supporting a plurality of rolling elements as claimed in claim 10 , wherein the radii of curvature of the concavely curved surfaces of the side walls of the recesses are identical and wherein the outer diameters of the rollers and balls are identical so that the recesses are configured for optionally supporting rollers or balls.

12. The retainer for supporting a plurality of rolling elements as claimed in claim 10 , wherein the side walls are formed by distance members having the same length so that the recesses are spaced apart from each other at equidistant spacing.

13. The retainer for supporting a plurality of rolling elements as claimed in claim 12 , wherein the distance members are interconnected by longitudinal webs extending in the longitudinal direction and perpendicularly to the side walls.

14. A retainer for supporting a plurality of rolling elements, for use in an adjusting device for longitudinal adjustment of a vehicle seat, comprising:
a bottom having a plurality of recesses formed in the bottom, wherein
the rolling elements are supported in the recesses formed in the bottom of the retainer spaced apart from each other in a longitudinal direction of the retainer, and
the rolling elements include a set of rolling elements comprising two rollers and a plurality of balls, wherein a first roller of the two rollers is supported in a foremost recess of the plurality of recesses formed in the bottom, a second roller of the two rollers is supported in a rearmost recess of the plurality of recesses formed in the bottom, and the plurality of balls are supported in neighboring recesses formed in the bottom.

15. The adjusting device for longitudinal adjustment of a vehicle seat as claimed in claim 6 , wherein the recesses are delimited by side walls extending perpendicular to the longitudinal direction, said side walls having concavely curved surfaces.

16. The adjusting device for longitudinal adjustment of a vehicle seat as claimed in claim 15 , wherein the radii of curvature of the concavely curved surfaces of the side walls of the recesses are identical and wherein the outer diameters of the rollers and balls are identical so that the recesses are configured for optionally supporting rollers or balls.

17. The adjusting device for longitudinal adjustment of a vehicle seat as claimed in claim 15 , wherein the side walls are formed by

Assignees

• Brose Fahrzeugteile

Inventors

• Harris Daryl
• Becker David
• Jalil Karam

Classifications

• B60N2/0722

  Constructive details · CPC title

• B60N2/0727 Primary

  Stop members for limiting sliding movement · CPC title

• B60N2/0715

  C or U-shaped · CPC title

• B60N2/0705 Primary

  omega-shaped · CPC title

• B60N2/07 Primary

  Slide construction · CPC title