Patent ID: 7048221
Filing Date: 2006-05-23
Classification: G11B

Abstract:
1. A door member for a tape cartridge, said door member configured to close a tape outlet provided in said tape cartridge such that said tape outlet is openable, said door member comprising: a door body configured as a flat plate; and a spring-mounting portion configured as a flat plate, said spring-mounting portion extending from said door body and having one end face having an insertion hole provided therein in which a foremost end of a spring member is inserted, one surface-side wall and another surface-side wall defining said insertion hole from an opening-side region of said insertion hole toward said end face to an innermost region of the insertion hole, cutouts being alternately provided in said one surface-side wall and said other surface-side wall, such that said cutouts communicate with said insertion hole, said spring-mounting portion having a protuberance provided on an inner surface of said one surface-side wall facing said innermost region, for engagement with said foremost end of said spring member, wherein an inner wall surface of said insertion hole on a door body side and another inner wall surface opposed to said inner wall surface are configured such that a distance between said inner wall surfaces is reduced toward an innermost end of said insertion hole.