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Patent Searching and Data


Title:
ELECTRIC POWER STEERING DEVICE
Document Type and Number:
Japanese Patent JP3765208
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To increase the fatigue strength of the teeth and dedendums of the teeth of a circular gear teeth part made of synthetic resin.
SOLUTION: With this steering device, a circular gear teeth part 81 made of synthetic resin, which has gear teeth engaging a worm 7, and a circular gear teeth part 81 of a worm wheel 8 provided with a metallic boss part 82 fitted into the circular gear teeth part 81, are formed of synthetic resin material to which fibers having the length of aspect ratio 100 to 800 are added, and thus the fibers are favorably arranged in position crossing the direction of torque applied to the teeth.


Inventors:
Takanori Kurokawa
Arai Yamato
Application Number:
JP25489199A
Publication Date:
April 12, 2006
Filing Date:
September 08, 1999
Export Citation:
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Assignee:
JTEKT Corporation
International Classes:
B62D5/04; F16H55/06; (IPC1-7): B62D5/04; F16H55/06
Domestic Patent References:
JP62184272A
JP2108657U
Attorney, Agent or Firm:
Nobuo Kono