Force directed keyslide cam

Details Force directed keyslide cam Force directed keyslide cam

1974-12-31

1976-06-15

Scott, Samuel

Machine element or mechanism

Shaft operators

Preselected position

74 1031, 334 7, F16H 3518

Patent

active

039629236

ABSTRACT:
In the tuning mechanism of a pushbutton radio, pushbutton depression translates the actuating bar of a keyslide mechanism causing the opposing faces of a memory cam to forcibly engage and rotate a treadle bar assembly. The treadle bar assembly couples to the tuning elements of the radio such that assembly rotation determines radio tuning. The cam faces are of predetermined curvature tending to maximize the rotational force applied to the assembly resulting in reduced required pushbutton pressure.

REFERENCES:
patent: 3545289 (1970-12-01), Ohashi
patent: 3550459 (1970-12-01), Pelletier et al.
patent: 3757590 (1973-09-01), Mears, Jr.

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