Holding device for an adjustment drive of a motor vehicle seat

• US 9,358,902 B2
• Filed: 07/05/2012
• Issued: 06/07/2016
• Est. Priority Date: 07/21/2011
• Status: Active Grant

• Current Assignee: Keiper Seating Mechanisms Company Limited
• Original Assignee: C ROB Hammerstein GmbH & Company KG (Johnson Controls International plc)
• Inventors: Landskron, Robert, Schrmann, Thorsten
• Primary Examiner(s): Safavi, Michael
• Application Number:
  US14/233,618
• Publication Number:
  US 20140246559A1
• Time in Patent Office: 1,433 Days
• Field of Search: 248/424, 248/429, 297/344.1, 297/344.11, 296/65.01
• US Class Current: 1/1
• CPC Class Codes: B60N 2/02246 Electric motors therefor
• 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
• CPC Class Codes: F16C 1/26 Construction of guiding-sheathings or guiding-tubes
• CPC Class Codes: F16C 2326/08 Vehicle seats, e.g. in linear movable seats

Abstract

A holding device for an adjustment drive of a motor vehicle seat has at least one channel for receiving a drive shaft which is mounted rotatably in a shaft casing and is connectable at one end to a drive unit and at the other end to an adjustment device. In order to provide such a holding device that permits a reliable arrangement of the shaft casing, in particular in a manner secure against rotation, provision is made for the channel to be formed for positioning the shaft casing in a manner partially offset in relation to the longitudinal axis of the channel.

Claims

1. A holding device for an adjustment drive of a motor vehicle seat, comprising:

at least one channel for receiving a drive shaft which is mounted rotatably in a shaft casing and is connectable at one end to a drive unit,

wherein the channel is formed for positioning the shaft casing in a manner partially offset in relation to the longitudinal axis of the channel such that the shaft casing is bent or kinked,

wherein the channel has at least two projections of a different length that project from a first channel side wall and are spaced from each other in the direction of the longitudinal axis of the channel, wherein at least two projections that are correspondingly arranged on an opposite channel side wall are designed such that the spacing of the opposing projections is constant.

2. The holding device according to claim 1, wherein the channel is designed to position the shaft casing offset in a wavy manner relative to the longitudinal axis of the channel.

3. The holding device according to claim 1, wherein the projections are designed to position the shaft casing offset in a wavy manner relative to the longitudinal axis of the channel.

4. The holding device according to claim 1, wherein the projections are formed by bars that project from the channel side walls at a distance from each other, wherein at least two bars arranged adjacent to each other on a channel side wall have a different length, and wherein the bars arranged on the opposite channel side wall are configured so that the distance between the opposing bar ends is constant.

5. The holding device according to claim 1, wherein the channel has at least two projections that are formed by bars, wherein the bars have bar ends that have toothed profiles.

6. The holding device according to claim 5, wherein the bar ends have a concave or convex contour and/or are aligned substantially parallel to the longitudinal axis of the channel.

7. The holding device according to claim 1, wherein the channel comprises a channel base having a concave or convex shape.

8. The holding device according to claim 1, wherein the holding device is formed as a single piece from a fiber-reinforced plastic.

9. The holding device according to claim 7, comprising elastic holding lugs that project towards a channel opening opposite the channel base.

10. The holding device according to claim 9, wherein the holding lugs have detent lugs that project in the direction of the longitudinal axis of the channel.

11. The holding device according to claim 4, wherein the bars are angled relative to the longitudinal axis of the channel.

12. The holding device according to claim 1, comprising a receiving section for arranging a drive unit.

13. A holding device for an adjustment drive of a motor vehicle seat, comprising:

at least one channel for receiving a drive shaft which is mounted rotatably in a shaft casing and is connectable at one end to a drive unit,

wherein the channel is formed for positioning the shaft casing in a manner partially offset in relation to the longitudinal axis of the channel,

wherein the channel has at least two projections of a different length that project from a first channel side wall and are spaced from each other in the direction of the longitudinal axis of the channel, wherein at least two projections that are correspondingly arranged on an opposite channel side wall are designed such that the spacing of the opposing projections is constant.