Dynamic information storage or retrieval – Dynamic mechanism subsystem – Having power driven transducer assembly
Patent
1991-12-03
1994-04-12
Levy, Stuart S.
Dynamic information storage or retrieval
Dynamic mechanism subsystem
Having power driven transducer assembly
360106, G11B 555, G11B 2108
Patent
active
053032233
ABSTRACT:
A head carriage apparatus includes a head carriage including a head being placed onto a disk for recording and reproducing information on the disk and having an extension and a connecting portion formed on the extension integrally with the head carriage, a lead-screw shaft having a lead screw in which a thread ridge and a thread groove are formed, the connecting portion being fitted in the thread groove of the lead screw, a drive part for driving and rotating the lead-screw shaft so that the head carriage is moved in a radial direction of the disk parallel to an axial direction of the lead-screw shaft, a guide shaft for guiding movement of the head carriage in a direction parallel to the radial direction of the disk, the head carriage being supported by the guide shaft at two supporting positions being located apart from each other in axial direction of the guide shaft, and a resilient part for pressing the lead-screw shaft in a direction facing the head carriage, the resilient part being fixed at one end onto the head carriage, the other end of the resilient part being brought into contact with the lead-screw shaft at a position corresponding with respect to the axial direction of the lead-screw shaft to a position at which the connecting portion is fitted in the thread groove of the lead-screw shaft. One of the two supporting points of the guide shaft is displaced to a forwardly moved point in order to downsize a disk drive unit in which the head carriage apparatus is accommodated.
REFERENCES:
patent: 2970841 (1961-02-01), Lorenz
patent: 4131923 (1978-12-01), Wachs et al.
patent: 4750068 (1988-06-01), Akasaki et al.
patent: 4783708 (1988-11-01), Hasegawa
patent: 4835646 (1989-05-01), Kurosawa et al.
patent: 5155718 (1992-10-01), Hashimoto et al.
Ando Yasuhiko
Sakaguchi Takahiro
Takasu Daihachiro
Tsuyuguchi Hiroshi
Yokota Kazuo
Levy Stuart S.
Meller Michael N.
Teac Corporation
Watkins Kevin M.
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