Rotary drive mechanism

Details Rotary drive mechanism Rotary drive mechanism

1990-02-26

1991-10-08

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 41, 310 49R, H02K 710

Patent

active

050557270

ABSTRACT:
A rotary drive mechanism includes a rotary solenoid having a stator and multi-poled rotor. A moving member rotates with the rotor and is biased by a biasing device. The biasing device causes a further rotational movement after rotation by the rotary solenoid. Thus, energization of the rotary solenoid moves the member in one direction to one position and biases the biasing device against the member. Subsequently, de-energization of the rotary solenoid causes the biasing device to move the member in the same direction to another position from where the moving member is again movable by energization and de-energization of the rotary solenoid. Preferably, the moving member is a multi-lobed cam having the same number of lobes as the rotor has poles. An anti-overdrive device is also preferably provided for preventing overdrive in the forward direction or a reverse rotation of the moving member and for precisely aligning the moving member.

REFERENCES:
patent: 2570518 (1951-10-01), Bryan
patent: 2950424 (1960-08-01), Smith et al.
patent: 3165936 (1965-01-01), Daugherty
patent: 3883758 (1975-05-01), Lechner

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