Rotary type electronic part

Details Rotary type electronic part Rotary type electronic part

1986-11-10

1988-04-19

Goldberg, E. A.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338166, 338168, H01C 1032

Patent

active

047393009

ABSTRACT:
A rotary type electronic device has a stationary casing and an axially slidable and angularly rotatable shaft disposed in the casing. The end of the shaft is assembled to the end face of a detentable (heart-shaped) cam so that the shaft can be pushed axially to engage and disengage from a detent position within the casing. The end of the shaft is formed with a tapered conical tip portion, and the end face of the cam is formed with a central insertion hole, having a diameter smaller than the outer diameter of the conical tip portion, and with cutout portions on opposite sides adjacent the insertion hole forming deformable bridging portions therebetween which deform to allow insertion of the conical tip portion of the shaft in a direction perpendicular to the end face.

REFERENCES:
patent: 3997865 (1976-12-01), George
patent: 4035759 (1977-07-01), Van Benthuysen
patent: 4109230 (1978-08-01), Frey, Jr.

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