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:
Sep. 04, 1984
Filed:
Sep. 15, 1981
Masayoshi Sakamoto, Tokorozawa, JP;
Minoru Kamata, Tokorozawa, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
The head base drive mechanism for cassette tape players. The head base which is normally urged toward the stop position is advanced to the play-back position using the rotation of the capstan. A pinion integrally provided on the flywheel of the capstan is engaged or disengaged with a sector gear. The sector gear is blocked from rotation after it goes out of said engagement and before it comes into engagement with the pinion. Since the sector gear is urged in a predetermined direction by way of a cam attached thereto, the release of said blocking causes the sector gear to rotate very quickly while the pinion is in facing relation to the untoothed position of the sector gear. Meantime, the cam actuates the head base to advance it to the play-back position through gear transmission whereas it restores the head base to the stop position quickly with the force by which the sector gear is urged.