Pickup arm cartridge

Details Pickup arm cartridge Pickup arm cartridge

1974-11-12

1976-04-20

Canney, Vincent P.

Telegraphy

Systems

Simplex-reversing periodic

274 23A, G11B 2504, G11B 2506, H04M 164, G11B 320

Patent

active

039521478

ABSTRACT:
A pickup arm cartridge houses a fragile signal pickup assembly of a video disc record player to (1) protect the signal pickup assembly during storage and handling, and (2) facilitate replacement of the signal pickup assembly without any critical manual adjustments or connections. A signal pickup assembly comprises a pickup arm carrying a signal pickup at one end and having its remote end secured to a coupler by a compliant pickup arm support. The coupler is suspended in the pickup arm cartridge such that the suspension, while permitting translatory motion of the coupler, (1) maintains angular orientation of the pickup in signal transfer relation with a disc record, and (2) positions the coupler for engagement with a translatory motion imparting transducer of the player supporting structure when the cartridge is assembled in the player. A leaf spring securely holds the signal pickup assembly in the cartridge during storage and handling. Means are provided for disabling the leaf spring during playback thereby disposing the signal pickup subject to engagement with the disc record.

REFERENCES:
patent: 3661397 (1972-05-01), Worth et al.
patent: 3873783 (1975-03-01), Leedom

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