Disk drive having a pivotal support structure capable of definin

Details Disk drive having a pivotal support structure capable of definin Disk drive having a pivotal support structure capable of definin

1994-09-29

1996-06-18

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 1702

Patent

active

055284353

ABSTRACT:
A disk driver having a pivotal support structure capable of defining a unique position of a support member has a disk holding table (10) and a support member (12) assembled to a lower surface thereof. The support member (12) is provided with an insertion hole (12b) formed at one end thereof. The insertion hole (12b) has a shape of an elongated hole extending along an imaginary line (L) between a center axis of the driving roller (15) and a center axis of a support pin (14). The elongated hole has a nonuniform width in a transversal direction perpendicular to the imaginary line (L). The width gradually reduces towards the driving roller (15) and is smaller and greater than a diameter of an engaging end (14a) of the support pin (14) at a closest portion closest to the driving roller (15) and at a remotest portion remotest from the driving roller (15), respectively. Following the movement of the support member (12) during rotation of the disk holding table (10) in a direction from the support pin (14) towards a driving roller (15), a circumferential wall defining the insertion hole (12b) is substantially brought into two-line contact (P1, P2) with a peripheral side wall of the engaging end (14a) of the support pin (14).

REFERENCES:
patent: 5121272 (1992-06-01), Maekawa et al.
patent: 5264978 (1993-11-01), Sakaguchi

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