The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 1984
Filed:
May. 21, 1982
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A tape cassette is loaded with respect to a recording and/or reproducing apparatus having a reel driving mechanism including at least one reel driving shaft. The tape cassette comprises a cassette case, reels provided within the cassette case, for winding a tape, and a reel braking mechanism for preventing unnecessary rotation of the reel when the tape cassette is not used, and releasing the braking when the reel driving shaft is inserted into the reel. The reel braking mechanism comprises a first teeth part having crests and valleys, formed on the lower surface of the reel, a second teeth part having crests and valleys, formed on a bottom plate of the cassette case at a position opposing the first teeth part of the reel, and a spring for urging the reel towards the bottom plate of the cassette case so that the first and second teeth parts mesh with each other. The crests of at least one of the first and second teeth parts the formed with a tapered surface on at least one side thereof.