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:
Dec. 28, 1982
Filed:
Jul. 14, 1980
Teruo Maruyama, Neyagawa, JP;
Masato Morimoto, Kadoma, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In a rotary head assembly for magnetic recording and reproducing apparatus such as VTR sets, of the type comprising a stationary shaft having its one end securely joined to a stationary member, a rotor fitted over the stationary shaft for rotation, a drive means for driving or spinning the rotor and heads mounted on the rotor, the position N of a thrust support for supporting the rotor is so selected as to coincide with the center of gravity G of the rotor or as to be located between the center of gravity G and the center of gravity G.sub.1 of the rotor except an aggregate of component parts of said drive means mounted on the rotor, the center of gravity G being depending upon the center of gravity G.sub.1 and the center of gravity G.sub.2 of the aggregate of component parts mounted on the rotor, whereby the adverse effects of the precession of the rotor on the precision rotation or spinning thereof can be avoided.