Adjusting system for a vehicle seat

• US 10,059,227 B2
• Filed: 02/11/2014
• Issued: 08/28/2018
• Est. Priority Date: 02/13/2013
• Status: Active Grant

• Current Assignee: Brose Fahrzeugteile GmbH & Company KG Coburg
• Original Assignee: Brose Fahrzeugteile GmbH & Company KG Coburg
• Inventors: Kostin, Sergej, Flieger, Michael
• Primary Examiner(s): Ijaz, Muhammad
• Application Number:
  US14/767,526
• Publication Number:
  US 20160082863A1
• Time in Patent Office: 1,659 Days
• Field of Search: 248424, 248429, 297144, 2972843, 297311, 297330, 2973441, 297362
• CPC Class Codes: B60N 2/02246 Electric motors therefor
• CPC Class Codes: B60N 2/02253 characterised by the transmission between the electric motor and the seat or seat parts
• CPC Class Codes: B60N 2/02258 characterised by the mounting of the electric motor for adjusting the seat
• CPC Class Codes: B60N 2/067 by linear actuators, e.g. linear screw mechanisms

Abstract

An adjustment system for a vehicle seat with two rail pairs aligned in longitudinal vehicle direction, which are connected with each other via a carrier element oriented in transverse vehicle direction, which carries an electromotive driving device which via drive shafts is connected with a longitudinal adjustment device of the rail pairs. For use with different track gages of the rail pairs, the carrier element is formed as multipart element with at least two carrier element parts shiftable against each other in transverse vehicle direction.

Claims

1. An adjustment system for a vehicle seat, the adjustment system comprising:

two rail pairs aligned with respect to each other along a longitudinal direction, each rail pair comprising each of a longitudinal adjustment device,

a carrier element coupled to the two rail pairs and extending along a transverse direction in between the two rail pairs,

an electromotive driving device carried and supported by the carrier element,

drive shafts configured to connect the electromotive drive device to the longitudinal adjustment devices of the rail pairs,

wherein the carrier element comprises at least two carrier element parts being rigidly formed and supporting the electromotive driving device on both of the two rail pairs such that the electromotive driving device is located between the two rail pairs, a first of the at least two carrier element parts comprising a first adjusting portion and a second of the at least two carrier element parts comprising a second adjusting portion slidably receivable on the first adjusting portion such that the second of the at least two carrier element parts is slidably guided on the first of the at least two carrier element parts along the transverse direction for adjusting the length of the carrier element along the transverse direction such that the length of the carrier element can vary before the carrier element is coupled to the two rail pairs.

2. The adjustment system according to claim 1, wherein the at least two carrier element parts have a closed profile.

3. The adjustment system according to claim 2, wherein the at least two carrier element parts are tubular.

4. The adjustment system according to claim 1, wherein the at least two carrier element parts have an open profile.

5. The adjustment system according to claim 1, wherein the at least two carrier element parts have different lengths when viewed along the transverse direction.

6. The adjustment system according to claim 5, wherein the electromotive driving device is connected with a carrier element part of the at least two carrier element parts having a shorter length than another carrier element part of the at least two carrier element parts.

7. The adjustment system according to claim 6, wherein the other carrier element part includes a terminal adjusting portion which is insertable into a counter-adjusting portion of the carrier element part of the at least two carrier element parts having a shorter length.

8. The adjustment system according to claim 1, wherein two of the at least two carrier element parts are each connected with an associated rail pair of the two rail pairs via terminal connecting flanges.

9. The adjustment system according to claim 1, wherein the at least two carrier element parts are made of a plastic material and include reinforcement ribs.

10. The adjustment system according to claim 1, wherein the drive shafts are formed flexible.

11. An adjustment system for a vehicle seat, the adjustment system comprising:

two rail pairs aligned with respect to each other along a longitudinal direction, each rail pair comprising each of a longitudinal adjustment device,

a carrier element coupled to the two rail pairs and extending along a transverse direction in between the two rail pairs,

an electromotive driving device carried by the carrier element,

drive shafts configured to connect the electromotive drive device to the longitudinal adjustment devices of the rail pairs,

wherein the carrier element comprises at least two carrier element parts, a first of the at least two carrier element parts comprising a first adjusting portion and a second of the at least two carrier element parts comprising a second adjusting portion slidably receivable on the first adjusting portion such that the second of the at least two carrier element parts is slidably guided on the first of the at least two carrier element parts along the transverse direction for adjusting the length of the carrier element along the transverse direction such that the length of the carrier element can vary before the carrier element is coupled to the rail pairs, wherein the at least two carrier element parts have a box-like or rectangular cross-section and are inserted into each other in the manner of a drawer, wherein the first of the at least two carrier element parts has a closed rectangular profile or a rectangular profile open at the bottom, which includes an upper surface, two side faces and selectively a bottom surface as well as a flange portion for connecting the first carrier element part with one of the two rail pairs, and the second of the at least two carrier element parts has a rectangular profile open at the top, which consists of a bottom surface, an open upper surface, two side faces angled towards the upper surface, and a flange portion for connecting the second carrier element part with the other one of the two rail pairs.

12. An adjustment system for a vehicle seat, the adjustment system comprising:

two rail pairs aligned with respect to each other along a longitudinal direction, each rail pair comprising each of a longitudinal adjustment device,

a carrier element coupled to the two rail pairs and extending along a transverse direction in between the two rail pairs,

an electromotive driving device carried by the carrier element,

drive shafts configured to connect the electromotive drive device to the longitudinal adjustment devices of the rail pairs,

wherein the carrier element comprises at least two carrier element parts, a first of the at least two carrier element parts comprising a first adjusting portion and a second of the at least two carrier element parts comprising a second adjusting portion slidably receivable on the first adjusting portion such that the second of the at least two carrier element parts is slidably guided on the first of the at least two carrier element parts along the transverse direction for adjusting the length of the carrier element along the transverse direction such that the length of the carrier element can vary before the carrier element is coupled to the rail pairs, wherein the carrier element comprises three carrier element parts, wherein the first of the carrier element parts is connected with a first of the two rail pairs, a third of the carrier element parts is connected to a second of the two rail pairs, and the second of the carrier element parts is arranged between the first and the third carrier element part.

13. The adjustment system according to claim 12, the second and the third carrier element parts are connected with the electric driving device or accommodate the electric driving device.

14. The adjustment system according to claim 13, wherein the second and the third carrier element parts accommodating the electric driving device are connected with each other via a clip connection.

15. The adjustment system according to claim 12, wherein the first carrier element part is longer than the second and the third carrier element part.