Funai Electric Company Ltd.

Yasuhide Mizuta

Daisuke Takasaka

Tomohiro Kobayashi

Masaki Nakatani

Katsuo Ichinohe

Tetsuya Tamura

Yoshiyuki Nakagawa

Rikiya Ueshima

Yasuhiro Nishina

Riklya Ueshima

An optical disc device includes: a loader body having a guiding recess formed of a linear portion and a sloped portion; a traverse chassis mounted in the loader body and having a protrusion that is guided along the recess; a turntable mounted on the traverse chassis, for mounting the optical disc; and a clamper which clamps the optical disc between the clamper and the turntable when the traverse chassis ascends relative to the loader body to a clamp position, in which when the traverse chassis is at a position lower than the clamp position, the protrusion is guided along the recess, and when the traverse chassis is at the clamp position, the protrusion is positioned inside the sloped portion.

Optical disc device

An optical disc device comprises a disc clamper. The disc clamper is provided with: a first member provided with a first circular disc, and with a plurality of upstanding pieces formed with predetermined spaces therebetween along a circle concentric to the first circular disc, the upstanding pieces having an engaging claw at the distal end thereof; and a second member provided with a second circular disc in which are formed a plurality of through-holes into which the plurality of upstanding pieces are inserted, and with a plurality of peripheral walls formed with predetermined spaces therebetween along a circle concentric to the second circular disc. Rotation in a state where the upstanding pieces have been inserted into the through-holes through the spaces between the peripheral walls causes the engaging claws to engage the peripheral walls.

A drive device for an optical disc apparatus, wherein the tooth comprises a tooth body fixed to an optical pickup; support pieces projecting from the tooth body toward a lead screw; resin spring pieces extending from the support pieces in a direction orthogonal to the axial direction of the lead screw; a plate part formed in a direction parallel to the axial direction of the lead screw from the resin spring pieces; meshing cogs formed on the plate part on the side near the lead screw; a cover projecting above the lead screw from the plate part disposed above the meshing cogs, straddling the lead screw, and bending sharply downward at the distal end; and a handle projecting from the tooth body.

Drive device for optical disc apparatus

A drive device for an optical disc apparatus, wherein the tooth comprises a tooth body fixed to an optical pickup, two support pieces projecting from the tooth body toward a lead screw, two resin spring pieces provided with a base part on the projecting end of each of the support pieces and extending in a direction orthogonal to the axial direction of the lead screw, a plate part having a base part on the extending ends of the resin spring pieces and formed in a direction parallel to the axial direction of the lead screw, meshing cogs formed on the plate part on the side near the lead screw, and a linking part formed across the space between the resin spring pieces.

A slider is mounted on a chassis forming a frame so as to be movable in a first direction, and is configured to start a movement in conjunction with an operation in which an optical pickup is switched from an operation mode into a non-operation mode and returns to an initial position. A disk tray is mounted on the chassis so as to be movable in a second direction perpendicular to the first direction, is configured to move in conjunction with the movement of the slider, and is provided with a first groove extending in the first direction. A protrusion is provided in the slider and is engaged with the first groove when the disk tray moves, thereby preventing the disk tray from moving in the second direction. A second groove is provided in the disk tray, communicates with the first groove, and introduces the protrusion into the first groove when the disk tray is moved. A first drive mechanism is configured to move the disk tray and includes a first pinion provided in the chassis and a first rack provided in the disk tray. The second groove is provided with an opening by cutting a portion of a groove wall of the guide groove.

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Osaka, Japan

Yasuhide Mizuta