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Patent Searching and Data


Title:
WATER VOLUME RESPONSIVE WINDOW WIPER
Document Type and Number:
Japanese Patent JPS6181255
Kind Code:
A
Abstract:
PURPOSE:To prevent extreme variation of wiper speed by shortening the continual operating time of wiper continuously if a water drip detection signal is obtained through a water drip detection sensor within predetermined time while extending continuously if said signal is not obtained. CONSTITUTION:A water drip detection sensor 1 comprised of a detection electrode 2, an oscillator 3 and a detecting circuit 4 to detect the variation of amplitude on the basis of the variation of electrostatic capacity due to water drip adhering to the glass face to be detected thus to detect the water drip is provided to supply the output to CPU8 thus to control the function of wiper 13. Here, CPU8 will control such that the continual operating time is shortened continuously if a water drip detection signal is obtained through said sensor 1 within predetermined continual time (7sec. for example) while extended continuously if said signal is not obtained. The wiper drive section 12 is controlled with correspondence to the continual time determined in such a manner.

Inventors:
OKUJIMA AKIHIRO
SHOJI SHINICHI
Application Number:
JP20533584A
Publication Date:
April 24, 1986
Filing Date:
September 28, 1984
Export Citation:
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Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
B60S1/08; G01N27/22; (IPC1-7): G01N27/22
Attorney, Agent or Firm:
Yoshiki Okamoto