Title:
LINK ROD OF WIPER
Document Type and Number:
Japanese Patent JP3236260
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To inhibit a noise in a car room caused by propagation of vibration to a car body side generated from a driving source at the time of an operation.
SOLUTION: A link rod transmits a driving force by connecting a wiper motor with a pivoting lever of a pivot shaft. A weight 38 is integrally fixed to the link rod and a natural frequency is shifted to a lower frequency band area. Thereby, a vibration transmitting characteristic varies to move a vibration damping effect area, and particularly, a vibration transmitting ratio of a frequency area around 1000 Hz generated from the wiper motor can be greatly lessened in the vibration damping effect area. Since the normal frequency is shifted to the lower frequency band area, a noise becomes a sound hardly sensed by a person and as a result, the noise of a whole system can be reduced.
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Inventors:
Hiroshi Matsumoto
Toshiaki Oshima
Yoshitomo Kasahara
Kazutoshi Kinoshita
Hisashi Takeuchi
Toshiaki Oshima
Yoshitomo Kasahara
Kazutoshi Kinoshita
Hisashi Takeuchi
Application Number:
JP11469698A
Publication Date:
December 10, 2001
Filing Date:
April 24, 1998
Export Citation:
Assignee:
Asmo Co., Ltd.
Toyota Auto Body Co., Ltd.
Toyota Auto Body Co., Ltd.
International Classes:
B60S1/20; B60S1/18; (IPC1-7): B60S1/18
Domestic Patent References:
| JP4334643A | ||||
| JP74251U | ||||
| JP5788663U | ||||
| JP721459U |
Attorney, Agent or Firm:
Atsushi Nakajima (3 outside)
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