Temperature-compensated head positioning device for magnetic dis

Details Temperature-compensated head positioning device for magnetic dis Temperature-compensated head positioning device for magnetic dis

1986-03-05

1989-01-03

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360105, 360137, 360 9702, 165185, G11B 5012, G11B 554, G11B 2122, G11B 5016

Patent

active

047961210

ABSTRACT:
The positioning device for the magnetic head (14) of a magnetic disc store (1) is constructed so that the heat produced by the stepping motor (6) has no significant influence on the magnetic-head support (2). For this purpose the stepping motor (6) is arranged on a mounting plate (5) made of a material with a low thermal expansion coefficient. This mounting plate (5) is secured to the chasis (3) of the drive mechanism. Between the stepping motor (6) and mounting plate (5) a foil (8) with satisfactory heat-sinking properties is arranged.

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