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:
Aug. 09, 1988
Filed:
May. 15, 1987
Tetsuo Kanno, Ebina, JP;
Kazumi Tanabe, Sagamihara, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A floppy disk device includes a driving hub, a pressure cone engageable with the hub for holding a floppy disk therebetween, a leaf spring rotatably supporting the cone for pressing the cone against the hub, a cone lift arm and a door for closing or opening a slot for insertion or removal of the floppy disk. When an operator closes or opens the door, its movement is transmitted to the cone lift arm which either presses or releases the leaf spring depending upon whether the door is closed or opened. The provision of the cone lift arm as an intermediate member between the door and the leaf spring allows to produce various desirable effects. Another embodiment includes the provision of a pawl which allows to insure that the cone comes into engagement with the hub only when the floppy disk is properly aligned. A further embodiment includes the provision of a specially structured steel belt for use in transmitting driving power to a carriage carrying thereon a magnetic head for reading and writing information on the floppy disk.