Guide sleeve for a vehicle seat

Patent metadata

Field	Value
Publication number	US-2018178697-A1
Application number	US-201615580503-A
Country	US
Kind code	A1
Filing date	Jun 13, 2016
Priority date	Jun 11, 2015
Publication date	Jun 28, 2018
Grant date	—

Abstract

A guide sleeve, for receiving a rod of a headrest, includes a sleeve body that has a rod receptacle for receiving the rod and an elastic region that is force-loaded in a direction of the rod receptacle in order to fix the rod in the rod receptacle. A spring element arranged on the outer contour of the sleeve body spring-loaded the elastic region. The spring element has a contact region adjacent to the elastic region, is configured as a clip that partially embraces the sleeve body and has a width in a sleeve body axial direction. The spring element includes a strip main body and the contact region is configured as a protuberance between two first bending points extending across the entire width of the main body. A vehicle seat for a motor vehicle has a backrest and a headrest, wherein the guide sleeve fastens the headrest to the backrest.

First claim

1 . A guide sleeve for receiving a rod of a headrest, the guide sleeve comprising:
a sleeve body which has a rod receptacle for receiving the rod and an elastic region which is force-loaded in a direction of the rod receptacle in order to fix the rod in the rod receptacle; and a spring element arranged on the outer contour of the sleeve body for loading the elastic region with a spring force, said spring element having a contact region lying against the elastic region, wherein the spring element is configured as a clip which partially embraces the sleeve body and has a width in an axial direction of the sleeve body, wherein the spring element is formed from a strip main body, wherein the contact region is configured as a protuberance between two first bending points extending across an entire width of the main body.

2 . The guide sleeve as claimed in claim 1 , wherein the clip extends in a circumferential direction of the sleeve body within a range of 40% to 60%, of the circumference of the sleeve body.

3 . The guide sleeve as claimed in claim 1 , wherein the protuberance is configured as a region of the spring element that is bent in a direction of the sleeve body.

4 . The guide sleeve as claimed in claim 1 , wherein the spring element has a W-shaped cross section.

5 . The guide sleeve as claimed in claim 1 , wherein the spring element is formed from the strip-type main body has two second bending points via which the two end regions of the main body are bent in a direction of the sleeve body.

6 . The guide sleeve as claimed in claim 1 , wherein the spring element has two fastening recesses via which the spring element is fixable to the sleeve body.

7 . The guide sleeve as claimed in claim 6 , wherein the fastening recesses are fixed to fastening points of the sleeve body that are spaced apart from one another in a circumferential direction of the sleeve body.

8 . The guide sleeve as claimed in claim 1 , wherein the spring element is formed from spring steel.

9 . The guide sleeve as claimed in claim 1 , wherein the sleeve body is formed from a polyamide or from polyoxymethylene (POM).

10 . The guide sleeve as claimed in claim 1 , wherein the guide sleeve has a locking element for locking the rod in a predetermined locking position in relation to the guide sleeve.

11 . The guide sleeve as claimed in claim 1 , wherein the elastic region has an outwardly protruding element.

12 . The guide sleeve as claimed in claim 11 , wherein the elastic region has an inwardly protruding element on a side of the elastic region which faces the rod receptacle, wherein the inwardly protruding element is arranged, in an axial direction of the sleeve body, at a same height as the outwardly protruding element.

13 . A vehicle seat for a motor vehicle, the vehicle seat comprising:
a backrest; a headrest; and a guide sleeve arranged on the backrest to fasten the headrest to the backrest, the guide sleeve comprising: a sleeve body which has a rod receptacle for receiving the rod and an elastic region which is force-loaded in a direction of the rod receptacle in order to fix the rod in the rod receptacle; and a spring element arranged on the outer contour of the sleeve body for loading the elastic region with a spring force, said spring element having a contact region lying against the elastic region, wherein the spring element is configured as a clip which partially embraces the sleeve body and has a width in an axial direction of the sleeve body, wherein the spring element is formed from a strip main body, wherein the contact region is configured as a protuberance between two bending points extending across an entire width of the main body.

14 . The vehicle seat as claimed in claim 13 , wherein the clip extends in a circumferential direction of the sleeve body within a range of 40% to 60% of a circumference of the sleeve body.

15 . The vehicle seat as claimed in claim 13 , wherein the protuberance is configured as a region of the spring element that is bent in a direction of the sleeve body.

16 . The vehicle seat as claimed in claim 13 , wherein the spring element formed from the strip-type main body has two second bending points via which the two end regions of the main body are bent in a direction of the sleeve body.

17 . The vehicle seat as claimed in claim 13 , wherein:
the spring element has two fastening recesses via which the spring element is fixable to the sleeve body; and the fastening recesses are fixed to fastening points of the sleeve body that are spaced apart from one another in a circumferential direction of the sleeve body.

18 . The vehicle seat as claimed in claim 13 , wherein:
the spring element is formed from spring steel; and the sleeve body is formed from a polyamide or from polyoxymethylene (POM).

19 . The vehicle seat as claimed in claim 13 , further comprising a locking element for locking the rod in a predetermined locking position in relation to the vehicle seat.

20 . The vehicle seat as claimed in claim 13 , wherein:
the elastic region has an outwardly protruding element; and the elastic region has an inwardly protruding element on a side of the elastic region which faces the rod receptacle; and the inwardly protruding element is arranged in the axial direction of the sleeve body at a same height as the outwardly protruding element.

Assignees

• Adient Luxembourg Holding Sarl
• Adient Luxembourg Holding Sarl

Inventors

• Wehling Karsten

Classifications

• B60N2/809

  vertically slidable · CPC title

• B60N2/897 Primary

  with sleeves located in the back-rest for guiding the rods of the head-rest · CPC title

• B60N2/818

  with stepwise positioning · CPC title

• B60Y2306/09

  Reducing noise · CPC title

• B60N2205/20

  Measures for elimination or compensation of play or backlash · CPC title