Head feeding mechanism having protrusion engaged with lead...

Details Head feeding mechanism having protrusion engaged with lead... Head feeding mechanism having protrusion engaged with lead...

2005-01-18

2005-01-18

Davis, David (Department: 2652)

Dynamic magnetic information storage or retrieval

Head mounting

For shifting head between tracks

Reexamination Certificate

active

06844997

ABSTRACT:
In the engaging structure of a lead screw (51) with a head lift body (52), for simplification of a feeding side mechanism and improvement of feeding accuracy, the head lift body has only one fingernail shaped protrusion (551) as a member engaging with an external thread of the lead screw (51). The protrusion (551) is provided on an internal wall surface of a bearing portion (55) formed in an integral structure with the head lift body (52). Accordingly, the engagement of the external thread of the lead screw and the single protrusion converts the rotation movement of the lead screw (51) to the linear movement of the head lift body (52). As a result, a feeding accuracy in the linear movement converted from the rotation movement is only determined by a feeding accuracy of only the lead screw (51). In an example, the protrusion is a half-moon shaped plate.

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