Tape cassette reel having an upper reel molded by dichromatic mo

Details Tape cassette reel having an upper reel molded by dichromatic mo Tape cassette reel having an upper reel molded by dichromatic mo

1989-12-18

1991-04-16

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B65H 7514

Patent

active

050075969

ABSTRACT:
A tape cassette reel of the type having an opaque, upper flange portion which is bonded to an outer peripheral flange portion and to an integrally formed lower flange portion and reel hub, wherein a shock-absorbing rib portion is formed on a radially inner surface of the outer peripheral flange portion so as to oppose an end face of the reel hub, and a pouring gate mark is formed on the radially inner side of the shock-absorbing rib portion during molding of the outer peripheral flange portion.

REFERENCES:
patent: 4403749 (1983-09-01), Nakagawa
patent: 4606511 (1986-08-01), Machida
patent: 4807826 (1989-02-01), Iwahashi
patent: 4846419 (1989-07-01), Tateno et al.
patent: 4930714 (1990-06-01), Hashizume

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