Carriage arm assembly for locating magnetic head, and...

Details Carriage arm assembly for locating magnetic head, and... Carriage arm assembly for locating magnetic head, and...

2005-04-12

2005-04-12

Heinz, A. J. (Department: 2653)

Dynamic magnetic information storage or retrieval

Head mounting

For shifting head between tracks

Reexamination Certificate

active

06879467

ABSTRACT:
According to the invention, there is provided a carriage arm assembly including a carriage arm having two arm members. The arm member is constructed in such a way that the width of its coil side end and the width of its suspension side end are narrower than that of its intermediate area. This construction widens a servo band width, improves positioning accuracy, and reduces positioning errors of a magnetic disk apparatus, so that recording density is improved and storage capacity is increased. Further, by coupling two arm members using a restriction member via a visco-elastic member, it is possible to achieve a high damping effect on various vibration modes including in-plane bending of the arms, and suppress vibration of the carriage so as to reduce the positioning errors.

REFERENCES:
patent: 5905608 (1999-05-01), Frees et al.
patent: 5936808 (1999-08-01), Huang et al.
patent: 6088194 (2000-07-01), Imaino et al.

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