Wiper arm driving mechanism

Details Wiper arm driving mechanism Wiper arm driving mechanism

B - Operations, Transporting

60

S

15/37

B60S 1/06 (2006.01) B60S 1/18 (2006.01) F16H 21/52 (2006.01)

Patent

CA 1169209

WIPER ARM DRIVING MECHANISM Abstract A driving mechanism for reciprocating a windshield wiper arm having maximum velocity at the mid-portion of the wiper stroke and zero velocity and minimum acceleration at the outboard ends of the stroke. The driving mechanism in- cludes a slotted follower having a semicircular shape with ends pivotally secured to a housing. An output drive shaft extends from the motor housing and has a curved crank at- tached thereto for rotation. The crank includes a pin at one end which extends into the follower slot for converting the rotary motion of the output drive shaft: into reciprocable motion of the follower. The follower transmits the recipro- cable motion to a drive shaft connected to the wiper arm for reciprocating the wiper across the windshield surface.

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