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:
May. 03, 1988
Filed:
Oct. 01, 1986
Masaru Koyahara, Chichibu, JP;
Shigeki Koizumi, Chichibu, JP;
Nobuhiro Aisawa, Chichibu, JP;
Tetsuo Tomita, Chichibu, JP;
Noriyuki Kawamura, Chichibu, JP;
Canon Denshi Kabushiki Kaisha, Chichibu, JP;
Abstract
A magnetic disc unit comprising motor means having a spindle rotatably mounted on a base for rotating a magnetic recording medium, a loading arm having one end swingably attached to the base and a center cone rotatably attached to the other end of the loading arm. The magnetic recording medium is interposed between the spindle and the center cone. A button lever having a control button projecting from one end is attached to the base and is movable with respect thereto. A clamping lever is also mounted to the base and linkage means interlocks the control button and the clamping lever. Depression of the control button translates the button lever so as to rotate the clamping lever to a first position in which the center cone engages the spindle with the magnetic recording medium interposed therebetween. Further depression of the control button translates the button lever to rotate the loading arm to a second position in which the center cone is released from the magnetic recording medium and the clamping lever presses the loading arm in the vicinity of the center cone.