Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Kisaburo Kurobe

Kozo Ezawa

Masashi Omura

Atsushi Imai

Tomohiro Sasao

Eisaku Sakoda

Yuko Ohtani

A power transmission member is provided with which it is possible to lessen the impact force produced when the head of a disk device hits part of a base member or the like. The power transmission member is a power transmission member of a mechanism for moving a head, used for recording on or reproducing from a disk, relative to a base member in a disk device, comprising a fixed component for attaching to a head, a power transmission component for receiving drive from a motor serving as a drive source, a linking component for linking the fixed component and the power transmission component, and a contacting component. The contacting component is fixed to the power transmission component, and comes into contact with part of the base member, or part of a member fixed to the base member, at least one end of the movement range of the head. The contacting component is also linked to the fixed component via the linking component in a state in which elastic deformation is possible only when an impact or the like creates an excessive force in the movement direction of the head.

Power transmission member for head movement mechanism, and disk device equipped with the head movement mechanism

A porous impregnation material () impregnated with a gaseous-phase lubricant that vaporizes at an atmosphere temperature within an outer case () is disposed in the inside of the outer case () that incorporates a tape mechanism () having a magnetic head such as a rotary video head (). This allows the magnetic head to be in a state of being protected by a coating film of the gaseous-phase lubricant, thereby eliminating the adhesion of foreign substances other than the gaseous-phase lubricant to the magnetic head. As a result, decrease in the reading precision of magnetic data to be caused by the foreign substances can be prevented.

Magnetic recording and reproducing device

According to the present invention, a cylindrical side wall is provided in a housing so as to surround an outer periphery of a stopper member. Further, an end surface of the side wall is higher than a top surface of outermost periphery of the stopper member. Oil otherwise scattered is received by the side wall for collection. Oil is thus prevented from scattering even if during manufacturing, the amount of oil dripped between the shaft and the oil-impregnated bearing is not strictly controlled, so that a slightly excessive amount of oil is dripped. Therefore, the present motor device enables manufacturing operations to be favorably performed, and is reliable having a long lifetime.

Motor device

Growing community of inventors

Osaka, Japan

Kisaburo Kurobe