Drum base on which a drum of a magnetic tape recorder is mounted

Details Drum base on which a drum of a magnetic tape recorder is mounted Drum base on which a drum of a magnetic tape recorder is mounted

1996-03-27

2000-06-20

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head moving during transducing

Tape record

360107, 36013024, G11B 1561

Patent

active

060784644

ABSTRACT:
A drum base according to he invention, on which a drum of a magnetic tape recorder is mounted, comprises a substantially annular frame having a fixing surface to which the drum is fixed; at least one through hole extending through the fixing surface for allowing a screw which is to be threadably attached to a threaded hole formed in the drum to pass therethrough; and a pair of mounting surfaces provided on the fixing surface on which the drum is mounted, the mounting surfaces being located adjacent to the at least one through hole so as to have a symmetrical relationship in a circumferential direction of the annular frame with respect to the at least one through hole and within a range of a diameter dimension of the at least one through hole in a radial direction of the annular frame.

REFERENCES:
patent: 4686597 (1987-08-01), Johnston
patent: 4761696 (1988-08-01), Muller et al.
patent: 4959742 (1990-09-01), Tsutsumi
patent: 5089921 (1992-02-01), Kodama et al.
patent: 5459625 (1995-10-01), Ohshima et al.

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