Fujitsu Corporation

Copal Company Limited

Kazuhiko Kageyama

Hideo Nasu

Hideki Yamaguchi

Shigeru Arai

Mitsuo Takahashi

Yoshihiro Sato

Koji Asako

Takao Shinoda

A compact inexpensive optical disk drive adaptable to high-density optical disks is provided by improving a loading mechanism for an optical disk. A mechanism for loading an optical disk, in or from which information is optically recorded or reproduced, into the body of an optical disk drive is mounted on a chassis. The loading mechanism consists of a spindle motor, a lift plate, and a sheet loader. The spindle motor rotates an optical disk. The spindle motor is placed on the lift plate. The sheet loader moves the lift plate vertically to the chassis so as to attach or detach the spindle motor to or from the optical disk. In the storage device, the tilt of the lift plate relative to the chassis is adjusted at three points on the lift plate. Blade springs for constraining the lift plate to move towards the optical disk are interposed between the chassis and lift plate. The points to which spring forces exerted by the blade springs are applied are located on a surface of the lift plate opposite to the optical disk.

Storage device adjusting tilt angle of spindle motor against replaceable storage medium

Disclosed herein is an optical storage device including an optical head having an objective lens for focusing a light beam from a light source onto an optical recording medium accommodated in a cartridge shell, and a photodetector for detecting a regenerative signal from reflected light from the optical recording medium. The optical storage device further includes a cartridge holder having a main surface for holding a cartridge inserted in the optical storage device. First and second cartridge holding assemblies are mounted on the main surface of the cartridge holder in the vicinity of a first side thereof in such a manner as to be spaced from each other and to partially project into the cartridge holder. A third cartridge holding assembly is mounted on the main surface of the cartridge holder in the vicinity of a second side thereof opposite to the first side so as to partially project into the cartridge holder. Each cartridge holding assembly includes a cartridge holding member having a flat surface for holding the cartridge shell.

Cartridge holding mechanism for optical storage device

Disclosed herein is a storage device including a turntable assembly movable between a raised position and a lowered position, a load plate adapted to move from a first position to a second position in concert with insertion of a carrier into the storage device, and a spring for biasing the load plate to the second position. When the load plate is moved to the second position, the turntable assembly is moved to the raised position. The storage device further includes a base and a timing arm mounted on the base so as to be pivotally movable between a third position for maintaining the load plate in the first position and a fourth position for disengaging the load plate in concert with the insertion of the carrier to allow movement of the load plate to the second position. The distance L between a pivotal center of the timing arm and a point of engagement of the timing arm and the load plate and the distance L between the pivotal center and a point of engagement of the timing arm and the carrier are related to satisfy L &gE;L

Cartridge loading mechanism for optical storage device

A cartridge holding mechanism for a storage device, including a pair of cartridge pressure springs each extending in a longitudinal direction of a cartridge holder corresponding to a direction of insertion of a cartridge into the storage device. The cartridge pressure springs are pivotably mounted to opposite side portions of the cartridge holder in the vicinity of the opposite sides of the cartridge holder. A pair of projections are formed at opposite end portions of each cartridge pressure spring to make pressure contact with the cartridge inserted in the storage device. Each cartridge pressure spring has a weight balance such that a front portion thereof corresponding to a front end of the storage device from which the cartridge is inserted is lighter in weight than a rear portion thereof with respect to the corresponding pivotal axis.

Optical storage device including a stable cartridge holding mechanism

A disk apparatus in which the thickness is suppressed. A recording/reproducing medium containing a disk rotatably in a hard case is moved substantially in a horizontal direction through an opening of the base of the disk apparatus for insertion and ejection operations of the recording/reproducing medium and recording/reproducing operation. For this purpose, the following are provided: a recording/reproducing unit for performing recording and reproduction, a container for containing the recording/reproducing medium at a predetermined position in the disk apparatus when the disk is inserted, a rotation motor for giving a predetermined turning effort by performing the chucking to the recording/reproducing medium, a chucking position where the chucking is performed, a vertical movement mechanism for moving the rotation motor to the waiting position where the recording/reproducing medium is inserted or ejected, a control mechanism for retaining the vertical movement mechanism to the chucking position, and a release mechanism for releasing and ejecting the recording/reproducing medium.

Growing community of inventors

Kawasaki, Japan

Kazuhiko Kageyama