A windshield wiper drive mechanism includes an electric motor having a worm shaft which meshes with a gear assembly which is drivingly connected to a crank arm. A windshield wiper transmission link is also connected to the crank arm. The crank arm has an inner diametral bearing surface which is rotatably supported on a pin secured at one end in cantilever fashion to a housing, and an outer diametral bearing surface which is adapted for rotatable support in a cylindrical opening in another housing. The outer bearing surface has axially extending recesses in which a lubricant is retained. When high transmission loads are applied to the crank arm, the pin deflects slightly so that the increased bearing loads are supported on the outer bearing surface to prevent further deflection of the pin.
申请公布号
DE3031782(C2)
申请公布日期
1987.12.17
申请号
DE19803031782
申请日期
1980.08.21
申请人
GENERAL MOTORS CORP., DETROIT, MICH., US
发明人
SAVAGE, JACK WINDFIELD, CENTERVILLE, OHIO, US;UNTERBORN, RALPH JOHN, DAYTON, OHIO, US
