Disc drive apparatus

Details Disc drive apparatus Disc drive apparatus

1994-03-30

1995-08-08

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360109, G11B 555

Patent

active

054404380

ABSTRACT:
In a disc drive apparatus, a contactor which receives a rotating force of a screw axle is integrally formed with a head carriage. Therefore, since the contactor is formed when the head carriage is formed, the mounting of the contactor on the head carriage is unnecessary during an assembly of the head. A plate spring is mounted on the head carriage, the plate spring having a first spring portion which presses the outer periphery of the guide axle on an inner peripheral surface of a guide axle and a second spring portion which presses the contactor on the outer peripheral surface of an output axle. Therefore, since the first spring portion and second spring portion are elastically deformed and the head carriage is held with respect to the guide axle and output axle, a single plate spring can obtain a necessary pressure of contact for transmitting the driving force of the motor and balance of a head assembly. In addition, a spring mounting piece is integrally formed on a press plate. The spring mounting piece is provided for mounting thereon a winding portion of a torsion spring which swingably biases a head arm in a direction such that a second head approaches a first head. Thus, the number of parts and labor hour of assembly can be reduced.

REFERENCES:
patent: 4694366 (1987-09-01), Fuke
patent: 4766510 (1988-08-01), Okita et al.
patent: 4875120 (1989-10-01), Takahashi et al.
patent: 5189569 (1993-02-01), Kurosawa
patent: 5198946 (1993-03-01), Kurosawa
patent: 5212417 (1993-05-01), Nagai et al.

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