Linear actuator for a motor vehicle seat

Patent metadata

Field	Value
Publication number	US-11040637-B2
Application number	US-201916400782-A
Country	US
Kind code	B2
Filing date	May 1, 2019
Priority date	May 2, 2018
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

A linear actuator for adjusting a seat component of a motor vehicle seat includes a lead screw having a rod head. A fastening means is connected to the rod head and connectable to a first seat component of the motor vehicle seat. The first seat component has a bearing, with the fastening means being insertable into the bearing in a first orientation and lockable in the bearing in a second orientation.

First claim

What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims and includes equivalents of the elements recited therein:

1. A linear actuator for adjusting a seat component of a motor vehicle seat, said linear actuator comprising:
a lead screw including a rod head; and
a fastening means connectable to the rod head by a clip connection and connectable to a first seat component of the motor vehicle seat, with the first seat component having a bearing, said fastening means being insertable into the bearing in a first orientation and lockable in the bearing in a second orientation.

2. The linear actuator of claim 1 , wherein the fastening means is cylindrical.

3. The linear actuator of claim 1 , wherein the fastening means has an opening configured to receive the rod head.

4. The linear actuator of claim 3 , wherein the opening of the fastening means has a broadening at an entry thereof.

5. The linear actuator of claim 3 , wherein the fastening means includes a detent arranged in the opening of the fastening means.

6. The linear actuator of claim 5 , wherein the rod head has a recess for locking of the detent of the fastening means in place.

7. The linear actuator of claim 1 , wherein the bearing of the first seat component is configured in a shape of a ring, with the bearing having an opening.

8. The linear actuator of claim 7 , wherein the bearing has an inner diameter which is greater than a width of the opening of the bearing.

9. The linear actuator of claim 1 , wherein the fastening means has an at least partially-circumferential groove.

10. The linear actuator of claim 9 , wherein in a first cross-section running through a center of the groove, the fastening means has a width which is less than a width in a second cross-section running through the center of the groove, wherein the first cross-section is perpendicular to the first orientation, and the second cross-section is parallel to the first orientation.

11. The linear actuator of claim 10 , wherein the bearing has an inner diameter which is greater than a width of the opening of the bearing, wherein the width of the fastening means in the first cross-section is less than the width of the opening of the bearing, and the width of the fastening means in the second cross-section is greater than the width of the opening and less than the inner diameter of the bearing.

12. The linear actuator of claim 1 , further comprising an engagement means in engagement with the lead screw.

13. The linear actuator of claim 12 , further comprising a motor in driving relationship to the engagement means.

14. The linear actuator of claim 12 , wherein the engagement means in engagement with the lead screw can be driven.

15. The linear actuator of claim 1 , wherein the rod head and the fastening means are made in two parts.

16. A linear actuator for adjusting a seat component of a motor vehicle seat, said linear actuator comprising:
a lead screw including a rod head; and
a fastening means connected to the rod head and connectable to a first seat component of the motor vehicle seat, with the first seat component having a bearing, said fastening means being insertable into the bearing in a first orientation and lockable in the bearing in a second orientation, said fastening means having an opening configured to receive the rod head and having a broadening at an entry thereof.

17. A linear actuator for adjusting a seat component of a motor vehicle seat, said linear actuator comprising:
a lead screw including a rod head; and
a fastening means connected to the rod head and connectable to a first seat component of the motor vehicle seat, with the first seat component having a bearing, said fastening means being insertable into the bearing in a first orientation and lockable in the bearing in a second orientation, said fastening means having an opening and including a detent arranged in the opening of the fastening means.

Assignees

• Faurecia Autositze Gmbh

Inventors

• Rõmer Bernd

Classifications

• B60N2/164 Primary

  Linear actuator, e.g. screw mechanism · CPC title

• B60N2/02 Primary

  the seat or part thereof being movable, e.g. adjustable (adjustable arm-rests B60N2/75; adjustable head-rests B60N2/806) · CPC title

• B60N2/929

  linear · CPC title

• B60N2/233

  by linear screw mechanisms · CPC title

• B60N2/08

  characterised by the locking device · CPC title