Positioning device of play-back heads and pressing devices in pl

Details Positioning device of play-back heads and pressing devices in pl Positioning device of play-back heads and pressing devices in pl

1978-05-30

1979-12-25

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Head accessory

360105, G11B 1529

Patent

active

041808363

ABSTRACT:
The present invention provides a play-back and/or recording apparatus which has an improved positioning device for determining a working position of play-back heads and pressing devices (pressure rollers). The positioning device comprises a rigid support which rigidly carries at least one play-back head and one pressing device. The rigid support, along with elements rigidly attached to it, is moved into a working position in the apparatus by forming three points of contact with block elements fixed with respect to the frame of the apparatus. These three points of contact form an imaginary triangular configuration and insure the accurate positioning of the play-back head and pressing device while resulting in a simplified positioning device.

REFERENCES:
patent: 3635423 (1972-01-01), Lennie
patent: 3686433 (1972-08-01), Camras
patent: 3810237 (1974-05-01), Nozawa
patent: 3903544 (1975-09-01), Nakamichi
patent: 4071861 (1978-01-01), Hirose

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