Vehicle seat having a suspension unit for cushioning rolling and vertical suspension movements

Patent metadata

Field	Value
Publication number	US-11279271-B2
Application number	US-202017118877-A
Country	US
Kind code	B2
Filing date	Dec 11, 2020
Priority date	Dec 13, 2019
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

The invention relates to a vehicle seat having a suspension unit for cushioning the rolling and vertical suspension movements of the vehicle seat, wherein the vehicle seat has a vehicle seat upper part and a vehicle seat lower part, wherein the vehicle seat upper part and the vehicle seat upper part are connected by means of the suspension unit so that the vehicle seat upper part and the vehicle seat lower part are movable relative to one another, wherein the suspension unit comprises a scissor arrangement having a first scissor arm and a second scissor arm, characterised in that the suspension unit is rotatably connected about a first axis of rotation to the vehicle seat lower part and comprises a spring element support and a first spring element, the first spring element being connected on the one hand to the vehicle seat lower part and on the other hand to the spring element support which is rotatably connected about a second axis of rotation to the first scissor arm and rotatably connected about a third axis of rotation to the second scissor arm, and the first spring element being preferably arranged at a first angle to a vehicle seat width direction and at a second angle to a vehicle seat height direction.

First claim

What is claimed is:

1. A vehicle seat comprising a suspension unit for cushioning rolling and vertical suspension movements of the vehicle seat, wherein the vehicle seat has a vehicle seat upper part and a vehicle seat lower part, wherein the vehicle seat upper part and the vehicle seat lower part are connected by means of the suspension unit so that the vehicle seat upper part and the vehicle seat lower part are movable relative to one another, wherein the suspension unit has a scissor arrangement having a first scissor arm and a second scissor arm, wherein the suspension unit is connected rotatably about a first axis of rotation to the vehicle seat lower part and comprises a spring element support and a first spring element, the first spring element being connected to the vehicle seat lower part and to the spring element support, wherein the first spring element is arranged at a first angle to a vehicle seat width direction and at a second angle to a vehicle seat height direction, and wherein the first axis of rotation is parallel to a vehicle seat longitudinal direction.

2. The vehicle seat according to claim 1 , wherein the suspension unit comprises a second spring element, the second spring element being connected to the vehicle seat lower part and to the spring element support, and wherein the second spring element being is arranged at a third angle to the vehicle seat width direction and at a fourth angle to the vehicle seat height direction.

3. The vehicle seat according to claim 1 , wherein the first angle and the second angle each have a value in a range of 0 to 90°.

4. The vehicle seat according to claim 2 , wherein the third angle and the fourth angle each have a value in a range of 0 to 90°.

5. The vehicle seat according to claim 1 , wherein the first axis of rotation is defined by a shaft.

6. The vehicle seat according to claim 1 , wherein the first scissor arm is displaceably connected by means of a first floating bearing to the vehicle seat upper part and by means of a second floating bearing with respect to the first axis of rotation, wherein the second scissor arm is displaceably connected by means of a third floating bearing to the vehicle seat upper part and by means of a fourth floating bearing with respect to the first axis of rotation, wherein a first connecting element connects the first scissor arm to a first fixed bearing which is arranged rigidly with respect to the first axis of rotation, wherein a second connecting element is provided which has a first connecting element part and a second connecting element part, wherein the first connecting element part is rotatably connected to the second scissor arm and the second connecting element part, and wherein the second connecting element part is rotatably connected to the first connecting element part, the first scissor arm and the vehicle seat upper part.

7. The vehicle seat according to claim 1 , wherein the first scissor arm is connected to a support part by means of a fixed bearing and to the vehicle seat upper part by means of a first floating bearing, and the second scissor arm is connected to the vehicle seat upper part by means of a second fixed bearing and to the support part by means of a fourth floating bearing.

8. The vehicle seat according to claim 6 , wherein the second floating bearing and the fourth floating bearing are each designed as a displacement element so that the first scissor arm and the second scissor arm are in each case displaceable relative to a shaft.

9. The vehicle seat according to claim 6 , wherein when viewed in the vehicle seat longitudinal direction, the second floating bearing is arranged in front of the third floating bearing and the first floating bearing is arranged in front of the fourth floating bearing.

10. The vehicle seat according to claim 1 , wherein the spring element support is rotatably connected about a second axis of rotation to the first scissor arm and rotatably connected about a third axis of rotation to the second scissor arm.

11. A vehicle seat having a suspension unit for cushioning rolling and vertical suspension movements of a vehicle, wherein the vehicle seat has a vehicle seat upper part and a vehicle seat lower part, wherein the vehicle seat upper part and the vehicle seat lower part are connected by means of the suspension unit so that the vehicle seat upper part and the vehicle seat lower part are movable relative to one another, wherein the suspension unit has a scissor arrangement having a first scissor arm and a second scissor arm, wherein the suspension unit is connected rotatably about a first axis of rotation to the vehicle seat lower part and comprises a first spring element, the first spring element being connected to the vehicle seat lower part and to the vehicle seat upper part, wherein the first spring element is arranged at a first angle to a vehicle seat width direction and at a second angle to a vehicle seat height direction, and wherein the first axis of rotation is parallel to a vehicle seat longitudinal direction.

12. A vehicle seat comprising a suspension unit for cushioning rolling and vertical suspension movements of the vehicle seat, wherein the vehicle seat has a vehicle seat upper part and a vehicle seat lower part, wherein the vehicle seat upper part and the vehicle seat lower part are connected by means of the suspension unit so that the vehicle seat upper part and the vehicle seat lower part are movable relative to one another, wherein the suspension unit has a scissor arrangement having a first scissor arm and a second scissor arm, wherein the suspension unit is connected rotatably about a first axis of rotation to the vehicle seat lower part and comprises a spring element support and a first spring element, wherein the first spring element is connected to the vehicle seat lower part and to the spring element support, wherein the first spring element is arranged at a first angle to a vehicle seat width direction and at a second angle to a vehicle seat height direction, and wherein the spring element support is rotatably connected about a second axis of rotation to the first scissor arm and rotatably connected about a third axis of rotation to the second scissor arm.

13. The vehicle seat according to claim 10 , wherein the second axis of rotation and the third axis of rotation are arranged extending in the vehicle seat width direction and the second and the third axis of rotation are arranged parallel to one another.

14. The vehicle seat according to claim 12 , wherein the second axis of rotation and the third axis of rotation are arranged extending in the vehicle seat width direction and the second and the third axis of rotation are arranged parallel to one another.

Assignees

• Grammer Ag

Inventors

• Dotzler Florian
• Krivenkov Konstantin

Classifications

• B60N2/502 Primary

  attached to the base of the seat (B60N2/504 takes precedence) · CPC title

• B60N2/162

  Scissors-like structure · CPC title

• B60N2/04

  the whole seat being movable · CPC title

• B60N2/525

  using gas · CPC title

• B60N2/508 Primary

  Scissors-like structure · CPC title