Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1993-08-06
1994-08-02
Simone, Timothy F.
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
1525016, 74 42, 74 43, 74836, 74600, 74522, 318DIG2, B60S 106, B60S 118
Patent
active
053333519
ABSTRACT:
To allow compact design of a wiper system equipped with a wiping angle varying assembly which comprises an actuating motor, an eccentric cam member provided in a path of transmitting the movement of the output end of a wiper motor to a wiper arm, and a control unit for activating the actuating motor so as to move the eccentric cam member and thereby change the range of angle of the wiping movement by altering a configuration of a linkage structure provided between the wiper motor and the wiper arm, the control unit is adapted to activate the eccentric cam member with such a timing that the force transmitted through the linkage structure from the wiper motor to the wiper arm tends to assist the force produced by the actuating motor to move the eccentric cam member in the required direction. Thus, the requirement of the power output of the actuating motor can be reduced, and the actuating motor can be substantially reduced in size. As a result, the design of the wiping angle varying assembly is simplified, and the assembly may be conveniently incorporated in a linkage structure similar in structure to the conventional linkage structure for wiper systems not equipped with any wiping angle varying assembly.
REFERENCES:
patent: 2173447 (1939-09-01), Horton
patent: 2298197 (1942-10-01), Coffey
patent: 4494421 (1985-01-01), Matuoka
patent: 4934014 (1990-06-01), Yamamoto
patent: 5142729 (1992-09-01), Imamura
patent: 5201094 (1993-04-01), Yamamoto et al.
patent: 5287585 (1994-02-01), Yamamoto et al.
Graham Gary K.
Mitsuba Electric Mfg. Co. Ltd.
Simone Timothy F.
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