IP Library Patent Application 10490014
Patent Application
App. No. 10/490,014

Resin gear

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Quick Facts
Patent No.
US None
App. No.
10/490,014
Abstract

The present invention relates to a resin gear to be meshed with a gear made of metal or the like, more particularly to a resin gear, wherein crystalline resin is used for a base material and reinforced fiber and further a crystalline nucleating agent are added as additives added to the base material.

Claims (24)

1 . A resin gear, a meshing object of which is made of metal, wherein

crystalline resin is used for a base material and

one or more reinforced fibers selected from a group of carbon fiber (CF), glass fiber (GF) and alamido fiber (AF) and further one or more crystalline nucleating agents selected from a group of talc, carbon carbide, carbon black and silica are used as additives added to the base material.

2 . A resin gear as claimed in claim 1 , wherein

a selected crystalline nucleating agent is talc and a volume of the talc added to the base material is 0.05 wt % through 0.2 wt %.

3 . A resin gear as claimed in claim 1 , wherein

a selected crystalline nucleating agent is carbon carbide and a volume of the carbon carbide added to the base material is 0.05 wt % through 1.0 wt %.

4 . A resin gear as claimed in claim 1 , wherein

a selected crystalline nucleating agent is carbon black and a volume of the carbon black added to the base material is 0.2 wt % through 0.25 wt %.

5 . A resin gear as claimed in claim 1 , wherein

a selected crystalline nucleating agent is silica and a volume of the silica added to the base material is 0.05 wt % through 1.0 wt %.

6 . A resin gear as claimed in claim 1 , wherein

a selected reinforced fiber is-carbon fiber (CF) and a volume of the carbon fiber added to the base material is 5 wt % through 30 wt %.

7 . A resin gear as claimed in claim 1 , wherein

a selected reinforced fiber is glass fiber (GF) and a volume of the glass fiber added to the base material is 5 wt % through 40 wt %.

8 . A resin gear as claimed in claim 1 , wherein

a selected reinforced fiber is alamido fiber (AF) and a volume of the alamido fiber added to the base material is wt % through 20 wt %.

9 . A resin gear as claimed in claim 1 , wherein

one or more solid lubricants selected from a group of high density polyethylene (HDPE), ultrahigh molecular weight polyethylene (UHMWPE) and polytetrafluoroethylene (PTFE) are further used as additives added to the base material.

10 . A resin gear, a meshing object of which is made of metal, wherein crystalline resin is used for a base material and talc by 0.05 wt % through 0.2 wt % and glass fiber by 5 wt % through 40 wt % are used as additives added to the base material.

11 . A resin gear, a meshing object of which is made of metal, wherein

crystalline resin is used for a base material,

crystalline nucleating agent, reinforced fiber and a solid lubricant are used as additives added to the base material, and

carbon fiber is used to function as both reinforced fiber and solid lubricant.

Assignments (2)
CHANGE OF NAME Recorded Mar 9, 2007
From: KOYO SEIKO CO., LTD.
To: JTEKT CORPORATION
Reel/Frame 018992/0365 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 18, 2004
From: KUROKAWA, TAKANORI
To: KOYO SEIKO CO., LTD.
Reel/Frame 016336/0887 →