Yamaha Corporation

Shinji Ohba

Mikio Ogusu

Kazumasu Tsutsumi

Hiroshi Sobukawa

A movable guide for receiving a caddy is provided movably in the loading and unloading directions on a main chassis. The movable guide is moved by a drive mechanism from an eject position to a disk drive position. An arrangement is made so that by an action of front and rear guide pins engaged in front and rear cam slits of the main chassis, when the movable guide is at the eject position, a turntable of a traverse unit disposed below the main chassis is spaced by a predetermined distance from a disk and, as the movable guide is moved in the loading direction, approaches gradually to the disk and, when the movable guide reaches the disk drive position, the turntable is attracted to the disk. The turntable approaches the disk upwardly relatively from beneath the disk and is attracted smoothly to the disk by a series of continuous operation.

Disk drive device

A first adjusting base made of a leaf spring material is supported on a holder in such a manner that the first adjusting base crosses the moving direction of the holder and is slightly pivotable about a first pivot axis which is parallel to a disk surface. A second adjusting base made of a leaf spring material is supported on the first adjusting base in such a manner that the second adjusting base crosses the first pivot axis and is slightly pivotable about a second pivot axis. The first and second adjusting bases are biased in a slightly pivoting direction by their own elasticity and, by turning screws which restrict the biasing, the first and second bases are pivoted to adjust the direction of an optical axis of a pickup head. Shaking of the pickup head is prevented and shock to the pickup head is absorbed by elasticity of the first and second adjusting bases whereby the device can be made compact and light.

Pickup device for a disk drive device

A magnetic recording and/or reproducing apparatus for use with a tape cassette. A pair of tape loading posts are moved respectively by first and second drive gears to draw a portion of a magnetic tape out of the tape cassette to wrap the magnetic tape portion about a head drum. The tape loading posts are drivingly connected respectively to the first and second drive gears through respective lost-motion mechanisms such that subsequent angular movements of the respective first and second drive gears after movement of the tape loading posts to their respective tape loading positions are prevented from being transmitted respectively to the tape loading posts. The first drive gear is provided in its outer periphery with a cut-out. A tape loading gear is in facing relation to the cut-out in the first drive gear until the tape cassette moves to its loading position. After movement of the tape cassette to its loading position, the first drive gear is angularly moved slightly so that it is brought into mesh with the tape loading gear and is driven thereby for angular movement in its tape loading direction.

Growing community of inventors

Hamamatsu, Japan

Shinji Ohba