Cartridge case and information recording medium

Details Cartridge case and information recording medium Cartridge case and information recording medium

2007-08-21

2007-08-21

Nguyen, John Q. (Department: 3654)

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Cartridge system

C360S132000

Reexamination Certificate

active

11042174

ABSTRACT:
A cartridge case includes: a tape reel including a hub that is shaped like a bottomed-cylinder and on an outer surface of a base plate of which ring-shaped driven teeth, in whose base part an inclined surface is formed, are disposed; a lower case that has an opening, a ring-shaped contact part and a guide surface, the opening being formed in a center of a base plate of the lower case, the contact part being formed in a protruding state on an inner surface of the base plate so as to surround the opening and having a contact surface that contacts and supports the tape reel at a position on the base plate of the hub outside the driven teeth, and the guide surface, which has a complementary form to the inclined surface of the driven teeth, being formed at an edge of the opening; and an upper case that together with the lower case encloses the tape reel in a rotatable state. The contact part is formed so that an end of the contact surface on a center of the opening-side is positioned closer to an outer circumference of the base plate of the lower case than a virtual plane that extends from the guide surface.

REFERENCES:
patent: 6651917 (2003-11-01), Momoi et al.
patent: 2002/0047063 (2002-04-01), Kaneda et al.
patent: 2004/0195414 (2004-10-01), Kaneda et al.
patent: 2002-100148 (2002-04-01), None
English language Abstract of JP 2002-100148.

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