JPS6457468A - Head positioning mechanism for magnetic disk device - Google Patents

Abstract

PURPOSE:To facilitate the positioning of a head and to reduce a mechanical resonance by disposing a dovetail groove axially of a housing, inserting the end part of a swing arm into this dovetail groove axially of the housing and laminating. CONSTITUTION:In the housing 2, the dovetail groove 13 for fitting the end part of the arm 1a axially thereof and a base for supporting the arm 1a inserted to the dovetail groove 13 as a guide face vertically to the axial direction, the end part of the arm 1a has the form of a notch angle the same as the dovetail groove 13 and is successively inserted into the dovetail groove of the housing 2 axially. Then, arm groups laminated are screwed by a plate 12 by the use of a screw part disposed on the housing 2 and the plate 12 presses the arm 1a. Accordingly, the height of the arm 1a can be maintained to a constant value only by controlling the height of the base of the dovetail groove 13 of the housing. Thereby, the positioning of the head can be easily executed to reduce the mechanical resonance.