Bearing for use in sliding head restraint

Patent metadata

Field	Value
Publication number	US-10220751-B2
Application number	US-201715626451-A
Country	US
Kind code	B2
Filing date	Jun 19, 2017
Priority date	Jun 29, 2013
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

Abstract

The present disclosure relates to bearings, guide sleeves and head restraint assemblies for automobiles.

First claim

What is claimed is:

1. A bearing comprising:
a generally cylindrical sidewall, and
at least one elongated finger at least partially coupled to the generally cylindrical sidewall, wherein the elongated finger comprises an end portion comprising an arcuate edge, wherein an innermost surface of said elongate finger is disposed within an inner diameter of said generally cylindrical sidewall in an unassembled position, wherein the elongated finger has a radius of curvature as measured in a circumferential direction of the bearing that is different than a radius of curvature of the generally cylindrical sidewall, wherein the at least one elongated finger further comprises a bridge portion extending between the generally cylindrical sidewall and the radially innermost surface, and wherein the end portion extends from the radially innermost surface opposite the bridge portion.

2. The bearing of claim 1 , wherein the at least one elongated finger comprises a first and second opposite sides, and wherein the at least one elongated finger is at least partially disconnected from the generally cylindrical sidewall along the first and second opposite sides.

3. The bearing of claim 2 , wherein the at least one elongated finger further comprises a third side disposed between the first and second sides, and wherein the at least one elongated finger is disconnected from the generally cylindrical sidewall along the third side.

4. The bearing of claim 3 , wherein the disconnection formed on the first, second and third sides of the at least one elongated finger is continuous.

5. The bearing of claim 1 , wherein at least a portion of the at least one elongated finger is canted relative to a central axis of the generally cylindrical sidewall.

6. The bearing of claim 1 , wherein the at least one elongated finger has an aspect ratio as measured by a length thereof in the axial direction as compared to a width thereof in the circumferential direction of at least 1.1:1.

7. The bearing of claim 1 , wherein the at least one elongated finger is monolithic with the generally cylindrical sidewall.

8. The bearing of claim 1 , wherein the at least one elongated finger has an arcuate profile.

9. The bearing of claim 1 , wherein the at least one elongated finger comprises a plurality of elongated fingers spaced apart around the generally cylindrical sidewall in a circumferential direction.

10. The bearing of claim 9 , wherein the plurality of elongated fingers are disposed in at least two circumferentially extending rows.

11. The bearing of claim 9 , wherein a first elongated finger of the plurality of elongated fingers extends from the generally cylindrical sidewall in a first direction, and wherein a second elongated finger of the plurality of elongated fingers extends from the generally cylindrical sidewall in a second direction different from the first direction.

12. The bearing of claim 9 , wherein at least two of the elongated fingers are oriented parallel with respect to each other.

13. The bearing of claim 9 , wherein the elongated fingers each have an innermost surface, the innermost surfaces defining a best fit circle, and wherein a diameter of the best fit circle is less than an inner diameter of the generally cylindrical sidewall.

14. The bearing of claim 9 , wherein at least one of the elongated fingers is disposed within an inner diameter of said generally cylindrical sidewall.

15. The bearing of claim 1 , wherein the generally cylindrical sidewall comprises a composite material including a substrate and a low friction material.

16. The bearing of claim 1 , further comprising a support member disposed radially outside of the generally cylindrical sidewall.

17. The bearing of claim 1 , wherein the at least one elongated finger is adjustable between a first position defining a first angle, A 1 , with respect to a central axis of the generally cylindrical sidewall, and a second position defining a second angle, A 2 , with respect to the central axis of the generally cylindrical sidewall, and wherein A 2 is different than A 1 .

18. An assembly comprising:
a post, and
a bearing adapted to engage the post, the bearing comprising:
a generally cylindrical sidewall, and
at least one elongated finger at least partially coupled to the generally cylindrical sidewall, wherein the elongated finger comprises an end portion comprising an arcuate edge, wherein an innermost surface of said elongate finger is disposed within an inner diameter of said generally cylindrical sidewall in an unassembled position, wherein the elongated finger has a radius of curvature as measured in a circumferential direction of the bearing that is different than a radius of curvature of the generally cylindrical sidewall, wherein the at least one elongated finger further comprises a bridge portion extending between the generally cylindrical sidewall and the radially innermost surface, and wherein the end portion extends from the radially innermost surface opposite the bridge portion.

19. The assembly of claim 18 , wherein the at least one elongated finger is adapted to dynamically deflect upon insertion of the post into the bearing.

Assignees

• Saint Gobain Perfromance Plastics Corp
• Saint Gobain Performance Plastics Corp

Inventors

• Hagan Timothy J
• Sanchez Abe
• Haines Paul
• Jessler Heiko
• Murphy Brandon S
• Dimartino Vincent
• Echikson Chloe
• Hundertmark Mirko

Classifications

• F16C2240/40

  Linear dimensions, e.g. length, radius, thickness, gap · CPC title

• B60N2/815

  Release mechanisms, e.g. buttons · CPC title

• F16C33/201

  Composition of the plastic · CPC title

• F16C31/02

  Sliding-contact bearings · CPC title

• F16C29/002

  Elastic or yielding linear bearings or bearing supports · CPC title