Reel spring of video tape cassette
AssigneeYoungkwang Precision
InventorKichung Kim
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Abstract
There discloses a reel spring used in a magnetic tape of a video tape cassette comprising a base portion having apertures for installing a reel spring in an upper housing of a tape cassette and a pair of end portions extending at a certain angle to the plane of the base portion wherein first embossments are made longitudinally to improve a spring tension and second embossments are made to hold protruding pivots of tape reels between tips of the reel spring, spacing from the first embossments. The size of the second embossments is formed to be broad enough for the pivots' running smoothly and the second embossments project in a contrary direction to the bend of the end portions.
Claims7
In a magnetic tape cassette comprising two tape reels having protruding pivots, the pivots having a lateral portion and a contact point, and a base portion having apertures for installing a reel spring in an upper housing of the tape cassette,
- the reel spring comprising a pair of end portions extending at a certain angle to the plane of the base portion wherein tension embossments are made longitudinally to improve the spring tension and receiving embossments are made towards the tips of the spring for receiving the protruding pivots of the tape reels, the receiving embossments being spaced apart from said tension embossments, said receiving embossments having a flat bottom surface, said bottom surface being of sufficient breadth so as to retain the pivots via the contact point thereof without substantially contacting the lateral portion thereof, whereby friction is minimized and said tape reels can run freely, while the pivots are prevented from disengaging from the spring by edges of the receiving embossments.
Dependencies are inferred from the claim text.