Motor operated mechanism

Details Motor operated mechanism Motor operated mechanism

1984-03-07

1984-12-11

Miller, J. D.

Electrical generator or motor structure

Dynamoelectric

Rotary

200 6162, 200153T, 310 42, 310 91, H02K 526

Patent

active

044880715

ABSTRACT:
A windshield wiper mechanism includes a motor-driven reciprocating link oscillating on a rotary wiper-arm shaft via an arm secured to the shaft. A limit switch is slidably mounted on a fixed plate through rivets and an elongate slot and a friction material. An operating member of the limit switch is engaged by a member mounted on the arm. The limit switch is mounted so that the force required to move it relative to the plate is greater than that required to operate the operating member, but less than the maximum force which can be applied by the motor to the arm. The position of the limit switch can thus be initially set automatically. A plate on the body of the switch provides an abutment for the member on the arm so that the overwiping and unwanted locking of the mechanism is prevented by the abutment, which is automatically set in the required position initially.

REFERENCES:
patent: 2785256 (1957-03-01), Nina
patent: 3569642 (1971-03-01), Grover
patent: 3649781 (1972-03-01), Johnsen et al.

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