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. 13, 1989
Filed:
May. 26, 1987
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A flexible disk drive includes a reset lever which holds an upper head in an upper or open position in an unloaded condition of a magnetic head and, interlocked with a closing motion of a door, moves downward together with the upper head, and a head load arm rotatable in response to downward movement of the reset lever to allow the upper head to make contact with a floppy disk. Connected to the head load arm is toggle device whose biasing direction is inverted by the rotation of the arm to bias the arm toward the disk. A hub adapted to rotate a floppy disk is located to face a collet which is adapted to align the center of the disk with that of the hub. When the door is closed while a floppy disk is not inserted, the collet is brought into engagement with the hub. At this instant, a gap is defined between the upper head and a lower head by a clamp lock to prevent the two heads from making contact with each other. While a floppy disk is inserted, the collet cooperates with the hub to check the disk in response to a closing motion of the door. A sequence lever responsive to a closing motion of the door allows the upper head to contact the disk thereafter. This provides a reliable manual head loading mechanism which insures accurate chucking of a floppy disk.