Hub for use in a tape casette

Details Hub for use in a tape casette Hub for use in a tape casette

1978-02-17

1979-07-24

Hornsby, Harvey C.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 741, 249122, 264328, 425542, B65H 7526, B29F 100

Patent

active

041620470

ABSTRACT:
The present invention is directed to a hub for use in a tape casette for winding a recording tape around the periphery of the cylindrical surface. The hub includes a drive shaft inserting hole at the center portion thereof; a notch for fastening the end of the recording tape in association with a tape securing member on the peripheral cylindrical surface; a first and a second surface opposed to each other, each surface having an inner annular surface and an outer annular surface; and a resin injection gate surrounded by a concave recess located in the outer annular surface of the first surface. In addition, the present invention includes a recess formed on the outer annular surface of the second surface at a position opposite to the resin injection gate, the bottom face of the recess being substantially parallel to the outer annular surface of the second surface.

REFERENCES:
patent: 2400024 (1946-05-01), Roehrl
patent: 3243490 (1966-03-01), Ulmschneider
patent: 3686470 (1972-08-01), Stahlberg et al.
patent: 3848310 (1974-11-01), Steinback
patent: 3995008 (1976-11-01), Spiegelberg

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