Motor actuated buzzer assembly with a plurality of leaf springs

Details Motor actuated buzzer assembly with a plurality of leaf springs Motor actuated buzzer assembly with a plurality of leaf springs

1985-03-11

1987-09-08

Rowland, James L.

Communications: electrical

Audible indication

Percussion-type sound producer

340396, 340399, 340402, G10K 100, G10K 108

Patent

active

046927417

ABSTRACT:
A motor actuated buzzer includes a motor mounted on a body, at least one cam member fixedly mounted on an output shaft of the motor, a sound generating plate mounted on the body, and a hammer for striking the sound generating plate, the cam having a plurality of radial protrusions. At least one leaf spring is fixed to the body at one end thereof and urged toward the cam member. The leaf spring carries the hammer intermediate opposite ends thereof and having at a free end thereof a projection. The radial protrusions are engageable with the projection upon rotation of the cam member to oscillate the leaf spring to intermittently bring the hammer into striking contact with the sound generating plate to produce a buzzing sound.

REFERENCES:
patent: 2624226 (1953-01-01), Hansen
patent: 3039423 (1962-06-01), Warn
patent: 3518667 (1970-06-01), Hanna et al.
patent: 4286258 (1981-08-01), Ishii
patent: 4305066 (1981-12-01), Shimoya
patent: 4306227 (1981-12-01), Ishii
patent: 4310834 (1982-01-01), Ishii
patent: 4368458 (1983-01-01), Ishii
UK Search Report dated Apr. 25, 1985, Issued on Applicants' Corresponding British Patent Application.

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