Rotary drive mechanism

Details Rotary drive mechanism Rotary drive mechanism

1986-09-26

1988-12-06

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307122, 307140, 200153T, 200153SC, 200 67PK, 200 67B, H01H 3500, H01H 300, H01H 2104

Patent

active

047897910

ABSTRACT:
A rotary drive mechanism has a yoke mounted on a motor shaft which engages a crank connected to a device to be rotated, such as the rotary portion of a microwave switch. When the gear motor is activated, the yoke causes the crank to move from a first position to a position past top dead center. A spring connected to the crank causes the crank to snap from the position past top dead center to a second position. A microswitch at the second position provides a signal to brake the motor when the crank reaches the second position. The yoke is configured like a V with the attachment point to the motor being the base of the V. A post from the crank is contained within the area defined by the legs of the V at a point where the shaft will not contact the opposite leg when the crank passes top dead center and is snapped to the second position.

REFERENCES:
patent: 2753412 (1956-07-01), Link
patent: 4520331 (1985-05-01), Steidel

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