Lead screw support damping mechanism
AssigneeShugart Associates
InventorWarren L. Dalziel
Life of this patent
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Abstract
An improved magnetic read/write head-positioning apparatus including a cantilevered lead screw head carriage-driving mechanism and a damping assembly for damping any transverse motion of the unsupported end of the lead screw. The damping assembly includes a leaf spring having one end affixed to the supporting frame and the other end positioned opposite the unsupported end of the lead screw, and a slider button disposed between the leaf spring and the unsupported lead screw end and carried by the lead screw so as to frictionally engage the leaf spring and cause a force to be exerted on the unsupported lead screw end tending to resist any transverse motion thereof.
Claims10
A magnetic read/write head-positioning apparatus comprising:
- a frame;
- a stepping motor mounted to said frame;
- a cantilevered lead screw having one end mounted to the drive shaft of said motor and the other end unsupported, said lead screw being adapted to drive a magnetic read/write head, the unsupported end of said lead screw tending to vibrate in a transverse direction when rotated by said motor due to torsional reaction forces created in moving the head;
- and
- damping assembly means disposed at said unsupported end of said lead screw and including first means carried by said unsupported end and forming a first surface, and resilient means affixed to said frame and forming a second surface, said resilient means being disposed to cause said second surface to engage said first surface with a force directed along the axis of said lead screw, whereby the frictional forces developed between said first and second surfaces due to transverse vibrating motion of said unsupported end tend to resist such motion.
Dependencies are inferred from the claim text.