Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1990-09-12
1992-02-25
Hornsby, Harvey C.
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
1525016, 74571, 74 42, 74522, 74835, B60S 104, B60S 106
Patent
active
050900811
ABSTRACT:
A windshield wiper includes a first pin connected to a drive mechanism, a primary lever supported by the first pin, a second pin mounted to the primary pin, a wiper arm fixedly mounted to the second pin, the primary lever being rotated about the second pin by the drive mechanism to cause reciprocating motion of the wiper arm in an arcuate path, a first cam member rotatable about the first pin, a second cam member rotatable about the second pin, and a secondary lever for connecting the first cam member and the second cam member together. The second cam member is so rotated as to allow a center of the first cam member to move relative to a center of the first pin, thereby changing the effective length of the primary lever such that the arcuate path of the wiper arm is changed. A wheel gear is used to rotate the second cam member through a predetermined angle. The second cam member is rotatably supported by a stationary member. A gear portion is meshed with the wheel gear and rotated by the motor. The wheel gear and the gear portion are both housed in a casing which is, in turn, fixed to the stationary member.
REFERENCES:
patent: 2713178 (1955-07-01), Stocks
patent: 2739681 (1956-03-01), Bowers et al.
patent: 3025552 (1962-03-01), Content
patent: 3025554 (1962-03-01), Ziegler
patent: 3282120 (1966-11-01), Compton
patent: 3422480 (1969-01-01), Kato
patent: 3729766 (1973-05-01), Buchanan, Jr.
patent: 4466153 (1984-08-01), Seibicke
patent: 4494421 (1985-01-01), Matuoka
patent: 4686733 (1987-08-01), Sahara
Fukumoto Ryoichi
Itagaki Kazuhide
Ohhashi Masao
Sumiya Kazuhiro
Yamamoto Tokihiko
Aisin Seiki Kabushiki Kaisha
Graham Gary K.
Hornsby Harvey C.
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