Capstan shaft thrust pad device

Details Capstan shaft thrust pad device Capstan shaft thrust pad device

1979-03-16

1981-08-11

Stearns, Richard R.

Cutlery

308161, 226194, 360 963, F16C 1704, B65H 1702

Patent

active

042830958

ABSTRACT:
A capstan shaft thrust pad device, for use with a tape cassette having a capstan shaft opening of a certain diameter, includes a bearing having a generally cylindrical upper portion which forms a first bearing surface, the outer diameter of the upper bearing portion being less than the diameter of the capstan shaft opening, and a lower bearing portion forming a second bearing surface parallel to the first bearing surface. A capstan shaft is supported by the bearing for rotation about the shaft axis, the shaft extending through the bearing, perpendicular to the first and second bearing surfaces. A fly wheel is coaxially fixed to the capstan shaft beyond the second bearing surface and the fly wheel has an end surface facing the second bearing surface so as to prevent axial movement of the shaft in one direction. A generally C-shaped thrust pad member is fixed in a groove on the capstan shaft beyond the second bearing surface to prevent axial movement of the shaft in the other axial direction. The thrust pad member extends radially from the shaft by an amount less than the outer diameter of the upper bearing portion. Accordingly, the thrust pad member is receivable in the capstan shaft opening in the tape cassette, together with the upper bearing portion and the capstan shaft. Moreover, since the thrust pad member is received in the tape cassette, the body of a tape cassette player or recorder in which the device is employed can be formed relatively thin.

REFERENCES:
patent: 3877074 (1975-04-01), Guttinger
patent: 4067488 (1978-01-01), Cicatelli
patent: 4136366 (1979-01-01), Ogiro et al.

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