Variable throw crank arm assembly for windshield wiper drive

Details Variable throw crank arm assembly for windshield wiper drive Variable throw crank arm assembly for windshield wiper drive

1985-01-16

1986-09-09

Feldman, Peter

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

74 70, 74 75, B60S 126

Patent

active

046100466

ABSTRACT:
In a windshield wiper drive system of the type having a reciprocating drive link and a reversible electric motor, a variable throw crank arm assembly between the drive link and the motor drive shaft including a first arm rigidly attached to the drive shaft, a second arm pivotally attached to the first arm and to an end of the drive link, a guide follower on the second arm, and a guide channel on the motor housing receiving the guide follower. The guide channel has a circular portion centered on the drive shaft axis and a noncircular escape portion radially outboard of the circular portion and merging therewith at a junction. When the drive shaft rotates continuously in one direction, the guide follower traverses the circular portion and holds the second arm in a short-throw folded position relative to the first arm. When the drive shaft rotates in the opposite direction, the guide follower automatically enters the escape portion and concurrently pivots the second arm to a long-throw unfolded position relative to the first arm.

REFERENCES:
patent: 2587163 (1952-02-01), Jackson
patent: 2717518 (1955-09-01), Latta
patent: 3665772 (1972-05-01), Beard et al.
patent: 3693209 (1972-09-01), Winkelmann et al.
patent: 3942385 (1976-03-01), Westerdale
patent: 4028950 (1977-06-01), Osterday
patent: 4400844 (1983-08-01), Hayakawa et al.
patent: 4454626 (1984-06-01), Schmidt et al.

Affiliated with

Also associated with

Rating

Variable throw crank arm assembly for windshield wiper drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable throw crank arm assembly for windshield wiper drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable throw crank arm assembly for windshield wiper drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1009530