Actuator mechanism for magnetic disc device

Abstract

Abstract PURPOSE:To reduce a bad influence on a device due to leakage flux and miniaturize the device, by using a rotary type voice coil motor having an almost square coil member set vertically at the tip section of a carriage, and respective magnet members arrange so that the coil member may be placed between the magnet members with a specified gap. CONSTITUTION:The magnets 24a, 24b, 24c, 24d of a rotary type voice coil motor 20 are arranged so that a coil 26 may be placed between the magnets with a specified gap. The coil 26 is formed in an almost square shape, and is set vertically to a carriage 13, and is connected to the carriage 13 by means of a resin mold or the like. When current flows to the coil 26, then a rotational force is worked on the coil 26, and the carriage 13 is rotated, and a magnetic head 22 is moved in the radial direction of a disc 23, and is positioned on a desired track. Leakage flux is generated vertically to the moving direction of the carriage, namely, the horizontal direction, and so a device is extremely less influenced by the leakage flux.

Inventors

• 👤 Kotaro Yamamoto

Bibliographic Details