Automotive slide member

Patent metadata

Field	Value
Publication number	US-11713432-B2
Application number	US-202117364856-A
Country	US
Kind code	B2
Filing date	Jun 30, 2021
Priority date	Jul 20, 2020
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

The present disclosure relates to an automotive slide member including a first slide portion having a first lubricant applied between first portions of a first friction slide mechanism, and a second slide portion having a second lubricant applied between second portions of a second friction slide mechanism. The first slide portion is arranged at a part to be touched by an operator who attaches the automotive slide member to an automobile or a user of the automobile. The second slide portion is arranged at a part that is not touched by the operator who attaches the automotive slide member to the automobile or the user of the automobile. The second lubricant contains a relatively larger amount of conductive carbon than that of the first lubricant.

First claim

What is claimed is:

1. An automotive slide member comprising:
a first slide portion including a first friction slide mechanism having at least two first portions, and a first lubricant applied between the first portions; and
a second slide portion including a second friction slide mechanism having at least two second portions, and a second lubricant applied between the second portions, wherein:
the first slide portion is arranged at a part to be touched by an operator who attaches the automotive slide member to an automobile or a user of the automobile;
the second slide portion is arranged at a part that is not touched by the operator who attaches the automotive slide member to the automobile or the user of the automobile;
the first lubricant contains a first base oil and an additive;
the second lubricant contains a second base oil and an additive containing conductive carbon; and
the second lubricant contains a relatively larger amount of the conductive carbon than an amount of conductive carbon in the first lubricant.

2. The automotive slide member according to claim 1 , wherein the first lubricant contains no conductive carbon.

3. The automotive slide member according to claim 1 , wherein a content of the conductive carbon in the first lubricant is 0.01 mass % to 2 mass % with respect to a total mass of the first lubricant.

4. The automotive slide member according to claim 3 , wherein the content of the conductive carbon in the first lubricant is 0.01 mass % to 0.5 mass % with respect to the total mass of the first lubricant.

5. The automotive slide member according to claim 4 , wherein the content of the conductive carbon in the first lubricant is 0.01 mass % to 0.1 mass % with respect to the total mass of the first lubricant.

6. The automotive slide member according to claim 1 , wherein a content of the conductive carbon in the second lubricant falls within a range of 0.1 mass % to 15 mass % with respect to a total mass of the second lubricant.

7. The automotive slide member according to claim 6 , wherein the content of the conductive carbon in the second lubricant falls within a range of 0.5 mass % to 10 mass % with respect to the total mass of the second lubricant.

8. The automotive slide member according to claim 7 , wherein the content of the conductive carbon in the second lubricant falls within a range of 2 mass % to 8 mass % with respect to the total mass of the second lubricant.

9. The automotive slide member according to claim 1 , wherein the conductive carbon is selected from the group consisting of carbon black, carbon nanotube, carbon nanohorn, carbon nanofiber, graphene, and graphite.

10. The automotive slide member according to claim 1 , wherein the second lubricant further contains polytetrafluoroethylene as the additive.

11. The automotive slide member according to claim 1 , wherein each of the first lubricant and the second lubricant further contains a thickener, and is in a form of a grease composition.

12. The automotive slide member according to claim 1 , wherein the automotive slide member is an electric power steering system.

13. The automotive slide member according to claim 1 , wherein the automotive slide member is a steering column.

14. The automotive slide member according to claim 1 , wherein the automotive slide member is a power window regulator.

15. The automotive slide member according to claim 1 , wherein the automotive slide member is a brake caliper.

16. The automotive slide member according to claim 1 , wherein the automotive slide member is an electric slide roof.

17. The automotive slide member according to claim 1 , wherein the automotive slide member is an electric seat.

18. The automotive slide member according to claim 1 , wherein the first slide portion and the second slide portion are provided in one member handled as a unit.

Assignees

• Toyota Motor Co Ltd
• Kyodo Yushi

Inventors

• Sudo Junichi
• Kanehara Youji
• Yamada Koushi
• Sakurai Kenichiro
• Tanimura Ko
• Komoriya Tomonobu

Classifications

• C10M125/02 Primary

  Carbon; Graphite · CPC title

• B60J7/02

  of sliding type {, e.g. comprising guide shoes} · CPC title

• B60N2/90

  Details or parts not otherwise provided for · CPC title

• B62D1/16

  Steering columns · CPC title

• B62D5/0403

  characterised by constructional features, e.g. common housing for motor and gear box · CPC title