Vehicle seat

Patent metadata

Field	Value
Publication number	US-9440559-B2
Application number	US-201314420756-A
Country	US
Kind code	B2
Filing date	Aug 14, 2013
Priority date	Aug 14, 2012
Publication date	Sep 13, 2016
Grant date	Sep 13, 2016

Abstract

A vehicle seat ( 1 ), in particular a commercial vehicle seat, includes a scissor-type (scissors) framework ( 3 ) for adjusting the height. The scissors framework has intersecting rockers ( 8 a, 8 b ) and at least one frame ( 5, 7 ), and at least one bearing device ( 21 ) for movably guiding the rockers ( 8 a, 8 b ) in the frame ( 5, 7 ). A rotatable bearing roller ( 14 ) interacts with a first guide and a rotatable compensation roller ( 36 ) interacts with a second guide attached to a base region ( 52 ) of an insert ( 60 ). A lateral region ( 54 ) of the insert ( 60 ) extends perpendicularly to the base region ( 52 ) and is fixed to the frame ( 5, 7 ) and/or a head region ( 50 ) of the insert ( 60 ), extending parallel to the base region ( 52 ), is fixed to the frame ( 5, 7 ). The base region ( 52 ) is resiliently designed and presses against the compensation roller ( 36 ).

First claim

The invention claimed is:

1. A vehicle seat comprising a scissors stand for adjusting a seat height, the scissors stand comprising:
intersected rockers;
at least one frame; and
a bearing device movably guiding the rockers relative to the frame, the bearing device comprising:
an insert defining or being connected to a first guide and a second guide, the insert having a foot region, a head region extending parallel to the foot region and a side region extending at a right angle to the foot region;
a bearing roller rotatable about a bearing axis and interacting with the first guide; and
a compensating roller rotatable about the bearing axis and interacting with the second guide, the second guide being defined by or being attached to the foot region of the insert, at least one of the side region of the insert and the head region of the insert being fastened to the frame, and the foot region is of an elastic design and presses against the compensating roller, the frame having a C-shaped profile which is open toward an interior of the vehicle seat and comprises an upper limb, a lower limb running parallel to the upper limb and a base limb which runs at a right angle to the upper limb and connects the upper limb to the lower limb, at least one of the side region of the insert is fastened to the base limb and the head region of the insert is fastened to the upper limb, the foot region of the insert being arranged at least substantially parallel to the lower limb, wherein a gap is provided between the foot region of the insert and the lower limb.

2. A vehicle seat as claimed in claim 1 , wherein the insert has an open C-shaped profile.

3. A vehicle seat as claimed in claim 1 , wherein the head region of the insert forms the first guide for the bearing roller.

4. A vehicle seat as claimed in claim 1 , wherein:
the head region of the insert runs parallel to the upper limb; and
the head region of the insert bears tightly against the upper limb.

5. A vehicle seat as claimed in claim 1 , wherein the foot region of the insert comprises a first section which adjoins the side region of the insert and a second section which faces away from the side region of the insert; and
the second section is designed in the form of an embossed step and is arranged offset parallel to the first section.

6. A vehicle seat as claimed in claim 5 , wherein the second section forms the second guide for the compensating roller.

7. A vehicle seat as claimed in claim 1 , wherein the second guide for the compensating roller is formed by a support mounted on the foot region of the insert.

8. A vehicle seat as claimed in claim 1 , wherein the insert is composed of metal.

9. A vehicle seat as claimed in claim 1 , wherein the insert is composed of steel.

10. A vehicle seat comprising a scissors stand for adjusting a seat height, the scissors stand comprising:
a first rocker;
a second rocker, said first rocker intersecting said second rocker;
a frame; and
a bearing device movably guiding the first rocker and the second rocker relative to the frame, the bearing device comprising:
an insert defining or being connected to a first guide and a second guide, the insert having a foot region, a head region extending parallel to the foot region and a side region extending at a right angle to the foot region;
a bearing roller rotatable about a bearing axis and interacting with the first guide; and
a compensating roller rotatable about the bearing axis and interacting with the second guide, the second guide being defined by or being attached to the foot region of the insert, at least one of the side region of the insert and the head region of the insert being fastened to the frame, the foot region being elastic, wherein the foot region presses upward in a vertical direction against the compensating roller, the frame having a C-shaped profile which is open toward an interior of the vehicle seat and comprising an upper limb, a lower limb running parallel to the upper limb and a base limb which runs at a right angle to the upper limb and connects the upper limb to the lower limb, at least one of the side region of the insert being fastened to the base limb and the head region of the insert being fastened to the upper limb.

11. A vehicle seat as claimed in claim 10 , wherein the frame comprises a lower limb, the foot region of the insert being arranged at least substantially parallel to the lower limb, wherein a gap is provided between the foot region of the insert and the lower limb.

12. A vehicle seat as claimed in claim 10 , wherein:
the foot region of the insert is arranged at least substantially parallel to the lower limb; and
a gap is provided between the foot region of the insert and the lower limb.

13. A vehicle seat comprising a scissors stand for adjusting a seat height, the scissors stand comprising:
a first rocker;
a second rocker, said first rocker intersecting said second rocker;
a frame; and
a bearing device movably guiding the first rocker and the second rocker relative to the frame, the bearing device comprising:
an insert defining or being connected to a first guide and a second guide, the insert having a foot region, a head region extending parallel to the foot region and a side region extending at a right angle to the foot region;
a bearing roller rotatable about a bearing axis and interacting with the first guide; and
a compensating roller rotatable about the bearing axis and interacting with the second guide, the second guide being defined by or being attached to the foot region of the insert, at least one of the side region of the insert and the head region of the insert being fastened to the frame, the foot region being elastic, wherein an upward force is applied to the compensating roller via said foot region, the frame comprising a lower limb, the foot region of the insert being arranged at least substantially parallel to the lower limb, wherein a gap is provided between the foot region of the insert and the lower limb.

14. A vehicle seat as claimed in claim 13 , wherein:
the frame has a C-shaped profile which is open toward an interior of the vehicle seat and comprises an upper limb, a lower limb running parallel to the upper limb and a base limb which runs at a right angle to the upper limb and connects the upper limb to the lower limb; and
at least one of the side region of the insert is fastened to the base limb and the head region of the insert is fastened to the upper limb.

15. A vehicle seat as claimed in claim 14 , wherein:
the foot region of the insert is arranged at least substantially parallel to the lower limb; and
a gap is provided between the foot region of the insert and the lower limb.

16. A vehicle seat as claimed in claim 13 , wherein the insert is composed of metal.

Assignees

• Johnson Controls Components Gmbh & Co Kg

Inventors

• Gundall Thomas
• Reichel Uwe
• Vogt Adolf

Classifications

• B60N2205/20

  Measures for elimination or compensation of play or backlash · CPC title

• B60N2/68

  Seat frames · CPC title

• B60N2/508

  Scissors-like structure · CPC title

• B60N2/162 Primary

  Scissors-like structure · CPC title

• B60N2/1685

  characterised by a lock · CPC title