Automatic record player

Details Automatic record player Automatic record player

1978-04-24

1980-04-22

Phillips, Charles E.

Undertaking

G11B 1700

Patent

active

041991486

ABSTRACT:
An automatic record player having an improved mechanism for automatically swinging the pickup arm to and from the playing position. The mechanism comprises a large gear having a non-toothed portion engageable with a small gear adapted to be driven by a motor, starting means adapted to bring the large gear into engagement with the small gear, and a movable plate adapted to be moved together with the pickup arm along a path of travel which runs above the large gear. To the large gear is pivotally attached a member for swinging the pickup arm, under control of a disc-size switching means, from a resting position to the playing position in association with the rotation of the large gear. The large gear may be provided with a cam portion for bringing the pickup arm from the playing position back to the resting position in association with the rotation of the large gear. Consequently, the swinging motion of the pickup arm is controlled substantially directly by the large gear without necessitating the aid of other intermediate members, thereby ensuring an enhanced reliability and a lowered cost of production of the record player.

REFERENCES:
patent: 2424132 (1947-07-01), Alexandersson
patent: 2481270 (1949-09-01), Wennerbo
patent: 2536453 (1951-01-01), Leline
patent: 2545643 (1951-03-01), Bender
patent: 2591515 (1952-04-01), Dale

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