Structure and jig for mounting spring arm on corresponding head

Details Structure and jig for mounting spring arm on corresponding head Structure and jig for mounting spring arm on corresponding head

1997-10-16

1999-09-21

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 554

Patent

active

059562102

ABSTRACT:
A structure for mounting at least a spring arm on at least a head arm is disclosed, which can meet the requirement for high recording density in a disk apparatus by effectively reducing the vibration of the head unit in operation. A head actuator includes at least a pair of heads mounted at the forward end of the head arm through the spring arm for reading/writing information in a discoidal recording medium. The base of the spring arm is fixedly welded to a fixing member. The head arm and the fixing member are coupled to each other by a caulking protrusion as a coupler formed on the fixing member. The overlapped portion of the head arm and the fixing member other than the coupler is formed with a vibration damping layer for preventing vibrations of one of the head arm and the fixing member from propagating to the other. This vibration damping layer is composed of a simple air gap or a vibration damping material filled in the air gap.

REFERENCES:
patent: 4991045 (1991-02-01), Oberg
patent: 5808835 (1998-09-01), Fujiwara

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