Frame for a vehicle seat as well as a vehicle seat

Patent metadata

Field	Value
Publication number	US-11292368-B2
Application number	US-202016788348-A
Country	US
Kind code	B2
Filing date	Feb 12, 2020
Priority date	Feb 15, 2019
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A frame for a vehicle seat comprises two side parts and swing arms pivotable in relation thereto for height adjustment of the frame. The swiveling of the swing arms can be caused by operating two actuator arms. Each actuator arm is associated with another swing arm so that the associated swing arm can be swiveled by actuating the respective actuator arm.

First claim

The invention claimed is:

1. A frame for a vehicle seat comprising
two side parts and swing arms pivoting in relation to the side parts, said frame being height adjustable by means of swiveling the swing arms, whereby said swiveling of the swing arms can be caused by operating at least two actuator arms,
each actuator arm being associated with a respective swing arm of the frame so that the respective swing arm can be swiveled by actuation of a respective actuator arm, said at least two actuator arms being twistable mounted at an anchor point to the respective swing arm so that, upon actuation of said at least two actuator arms along a direction of actuation, the swing arms can be swiveled about a pivot point and the side parts of the frame can be moved in a height adjustment direction,
the actuation of said at least two actuator arms along the direction of actuation being synchronized via a synchronization bar so that the swing arms swivel in synchronized fashion, said synchronization bar extending between said side parts and being twistable mounted at connection points on the side parts,
wherein said connection points are located at most one third of a side part length of each respective side part away from a front end point of the respective side part in a front end region of the respective side part, and
wherein said swing arms includes front swing arms that are twistable arranged in the front end region of the respective side part, said front swing arms arranged on different side parts and not being connected to each other via a transverse pipe.

2. The frame of claim 1 , wherein, outside the front end region, said swing arms further include rear swing arms that are twistable arranged on the respective side part, said rear swing arms on different side parts being connected to each other via a rear transverse pipe.

3. The frame of claim 2 , wherein said connection points on the respective side part are fixed in such a way that a hip point of an occupant sitting in the vehicle seat is located at a horizontal distance from said synchronization bar of between 130 mm and 230 mm and a vertical distance from said synchronization bar of between 40 mm and 100 mm.

4. The frame of claim 3 , wherein exactly two actuator arms are provided, each actuator arm being associated with one swing arm of the frame.

5. The frame of claim 4 , wherein said swing arms are affixed via the pivot points to an upper rail.

6. The frame of claim 5 , wherein the pivot points on each swing arm and the anchor points on each swing arm are spaced apart.

7. The frame of claim 3 , wherein said horizontal distance is between 150 mm and 210 mm and said vertical distance is between 60 mm and 80 mm.

8. The frame of claim 7 , wherein said horizontal distance is between 170 mm and 190 mm and said vertical distance is between 65 mm and 75 mm.

9. The frame of claim 8 , wherein said horizontal distance is 180 mm and said vertical distance is 70 mm.

10. A frame for a vehicle seat comprising
two side parts, two swing arms mounted for pivotable movement relative to the side parts, said frame being height adjustable in response to pivotable movement of the swing arms, and at least two actuator arms,
each actuator arm being associated with a respective swing arm of the frame so that the respective swing arm can be pivoted by actuation of each respective actuator arm, said at least two actuator arms being twistable mounted at an anchor point to the respective swing arm so that, upon actuation of said at least two actuator arms along a direction of actuation, the swing arms can be swiveled about a pivot point and the side parts of the frame can be moved in a height adjustment direction,
the actuation of said at least two actuator arms along the direction of actuation being synchronized via a synchronization bar so that the swing arms swivel in synchronized fashion, said synchronization bar extending between said side parts and being twistable mounted at connection points on the respective side parts,
wherein said connection points are located at most one third of a side part length of the respective side part away from a front end point of the respective side part in a front end region of the respective side part, and
wherein actuator pinions are rigidly affixed to ends of the synchronization bar, said actuator arms each comprising gears, each actuator pinion meshing with the gears of a respective actuator arm so that any rotation of the actuator pinion and, therewith, an actuation of the actuator arms happens in synchronized fashion.

11. The frame of claim 10 , wherein the gears on each actuator arm terminate with a stop on one side or on both sides so as to limit movement of each actuator arm.

12. The frame of claim 11 , wherein at least one of the actuator arms can be operated directly or indirectly via an actuating device, said actuating device driving said synchronization bar indirectly or directly for synchronized operation of the actuator arms.

13. The frame of claim 12 , wherein said actuating device acts via an additional drive pinion on one of the actuator arms and the operation of the one actuator arm can be transferred to the other actuator arm via the actuator pinion and the synchronization bar.

14. The frame of claim 13 , wherein said additional drive pinion acts on the gears of the respective actuator arm or on a further gears on the respective actuator arm for operating the respective actuator arm along the direction of actuation.

15. The frame of claim 12 , wherein said actuating device acts directly on the actuator pinion via an additional drive pinion, whereby said drive pinion interlocks with said actuator pinions and the actuation via the synchronization bar and the actuator pinion can be transferred to the two actuator arms.

16. The frame of claim 12 , wherein said actuating device acts directly on said actuator pinion or said synchronization bar, and the actuation via said synchronization bar and said actuator pinions can be transferred to the two actuator arms.

17. The frame of claim 16 , wherein said actuating device is operated manually or electrically.

18. A vehicle seat comprising the frame of claim 1 for adjusting the vehicle seat in the height adjustment direction by synchronized actuation of the actuator arms.

Assignees

• Faurecia Autositze Gmbh

Inventors

• Behrens Meinhard

Classifications

• B60N2/165

  Gear wheel driven mechanism · CPC title

• B60N2/161 Primary

  Rods · CPC title

• B60N2/1615 Primary

  Parallelogram-like structure · CPC title

• B60N2/42

  the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats (for protecting children B60N2/26; arm-rests B60N2/75; head-rests B60N2/888) · CPC title

• B60N2/166

  Worm and worm gear articulations · CPC title