Matsushita Electric Industrial Co., Ltd.

Kiyonari Saruwatari

Kiyoshi Umesaki

Yoshikazu Yamano

Makoto Kanbayashi

Yasunari Toyama

Toru Tanaka

A height adjustment device is provided that has a first chassis having an adjustment hole, an adjustment screw that stands when threadedly engaged with the adjustment hole in the first chassis, a second chassis locked by the adjustment screw so as to have a preset separation distance from the first chassis, and biasing means for biasing the first chassis and the second chassis in the direction of attaining separation therebetween. The adjustment screw has a tip portion for forming a female thread in the adjustment hole when rotated and inserted into the adjustment hole, a threaded portion having a male thread threadedly engaged with the female thread formed by the tip portion, and a head portion for locking the second chassis against the direction of biasing by the biasing means, in a nearly linear state. The distance between the end of the head portion of the adjustment screw on the male thread side and the end of the tip portion on the male thread side is made larger than the sum of the length of the inside diameter portion of the adjustment hole in which the female thread is formed, the maximum value of the distance between the first chassis and the second chassis and the thickness of the second chassis.

Height adjustment device suitable for use in an optical disk apparatus

A disk apparatus of the present invention, in which a cartridge accommodating a disk-like recording medium and having an opening opened or closed by a shutter member is loaded to the disk apparatus, includes a loading chassis; a cartridge transporting member provided on the loading chassis for transporting the cartridge from a removal position to a play position; a traverse unit for carrying a pickup for recording or reproducing a signal onto or from the disk-like recording medium; a traverse transporting member provided on the loading chassis for transporting the traverse unit from a standby position to the play position; and a driving section provided on the loading chassis for driving the cartridge transporting member and the traverse transporting member. The cartridge transporting member and the traverse transporting member can slide in a direction of transporting the cartridge. One of the cartridge transporting member and the traverse transporting member is disposed on the other. In loading the cartridge, the driving section starts to drive only the cartridge transporting member before the cartridge transporting member drives the traverse transporting member; and the cartridge reaches the play position before the driving section drives only the traverse transporting member.

Disk apparatus

In an optical disk apparatus in accordance with the present invention, a tilt chassis () to which a main shaft () and a sub shaft (), being parallel with each other and serving to guide the movement direction of an optical pickup (), are secured is disposed rotatably with respect to a traverse chassis () to which a spindle motor () is secured, and the tilt chassis () is configured so as to be tilt-adjustable with respect to the traverse chassis () by tilt adjustment means having two tilt adjustment portions (), whereby tilt adjustment work for adjusting the movement face of the optical pickup so as to be parallel with the recording face of an optical disk is made easy.

Optical disk device

Disk drive with slider pressure plate

A disk drive unit,includes fixed and movable frames,,and,. The movable frame has a turntable,for rotatably supporting the disk,, an optical head,for optically reading information recorded in one surface of the disk supported on the turntable, and a guide,for moving the optical head in a radial direction of the supported disk. A support mechanism,for movably supporting the movable frame on the fixed frame has a damper,made of elastic material and is designed to have a specific damping feature with respect to first to third directions.

Disk drive apparatus with elastic dampers

An optical disc drive apparatus including a main tray having a stack of subtrays mounted thereon and movable between withdrawn and inserted positions. When the main tray is moved to the inserted position, the subtrays stacked thereon are held at a stand-by position and a selected one of the subtrays is ready to be drawn towards a loaded position so that an optical disc resting on the selected one of the subtrays can be clamped in position and optically read out. When an optical disc resting on one of the subtrays other than the uppermost subtray then held at the loaded position is desired to be removed or replaced, not only can such one of the subtray be returned from the loaded position to the stand-by position, the main tray is allowed to withdraw from the inserted position back to the withdrawn position carrying such one of the subtrays and the subtray or subtrays positioned immediately thereabove while leaving the subtray or the subtrays positioned above such one of the subtrays at the stand-by position, so that such one of the subtrays can readily be exposed to the outside for removal or replacement of the optical disc resting thereon.

Growing community of inventors

Kadoma, Japan

Kiyonari Saruwatari