JPS63149461U

JPS63149461U -

Info

Publication number: JPS63149461U
Application number: JP4088287U
Authority: JP
Priority date: 1987-03-23
Filing date: 1987-03-23
Publication date: 1988-10-03

Description

[Brief explanation of drawings]

第１図ないし第６図は、本考案の実施例を説明
するためのもので、第１図は実施例に係るヘツド
復帰装置の分解斜視図、第２図、第３図、第４図
、第５図、第６図はそれぞれヘツド復帰装置の動
作説明図、第７図ないし第９図は従来例を説明す
るためのもので、第７図はハードデイスク装置の
一部切欠要部斜視図、第８図は磁気デイスクの領
域を示す説明図、第９図は従来の復帰装置の説明
図である。１……磁気デイスク、２……磁気ヘツド、１１
……ステツピングモータ、１２……駆動軸、３８
……復帰用アーム、４０……ばね、４２……係止
部、４３……係合突起、４４……連動アーム、４
７……ソレノイド、４８……作動杆、４９……係
止突起、５０……ばね。 1 to 6 are for explaining an embodiment of the present invention, in which FIG. 1 is an exploded perspective view of a head return device according to the embodiment, FIGS. 2, 3, 4, 5 and 6 are explanatory diagrams of the operation of the head return device, FIGS. 7 to 9 are for explaining the conventional example, and FIG. 7 is a perspective view of a partially cutaway essential part of the hard disk drive. FIG. 8 is an explanatory diagram showing areas of a magnetic disk, and FIG. 9 is an explanatory diagram of a conventional return device. 1...Magnetic disk, 2...Magnetic head, 11
... Stepping motor, 12 ... Drive shaft, 38
... Return arm, 40 ... Spring, 42 ... Locking part, 43 ... Engagement projection, 44 ... Interlocking arm, 4
7... Solenoid, 48... Operating rod, 49... Locking protrusion, 50... Spring.

Claims

[Scope of utility model registration request]

In a device that returns a head device for recording or reproducing data to a rotationally driven disk-shaped information recording medium to a preset evacuation position when the power is turned off, the motor for transporting the head device and the head device are integrated. a first movable member that moves in parallel; a second movable member that is movable parallel to the first movable member; and a second movable member that always urges the second movable member in a direction to return to the retracted position. The first biasing means engages with the first moving member when the second moving member moves in the return direction, and engages with the second moving member when the first moving member moves in the opposite return direction. and an engaging means for moving the second moving member as one unit, which is energized when the second moving member reaches a preset position on the side opposite to the retracted position, and is energized from a direction different from the moving direction of the second moving member. a solenoid having an operating rod that locks onto a second moving member to hold the second moving member in the position; and a second urging means that constantly urges the operating rod of the solenoid in the unlocking direction. A head device return mechanism characterized by comprising: