Abstract: 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.

Abstract: In a disk device, a disk is held between a flap and a conveyance roller conveying the disk into a loader chassis. The loader chassis includes a lid panel including a spring seat to which a holddown spring that presses the flap toward the conveyance roller is attached. The spring seat includes an L-shaped frame including a support panel (formed at an edge of an opening,) and a support shaft panel perpendicularly bent from an end of the support panel, the L-shaped frame being pulled to rise toward the flap by bending the support panel. A sloped guide edge is formed by cutting an end side of a lid-panel-side edge of the support shaft panel including a stopper portion and a support shaft main body. A coil portion of the holddown spring is moved along the sloped guide edge to be fitted onto the support shaft main body.

Abstract: A drive device for an optical disc apparatus, comprising: a traverse chassis; a vertically moving lever arm for covering part of the lower surface of the traverse chassis and supporting the traverse chassis; a first circuit board disposed on the upper surface of the traverse chassis; a second circuit board disposed on the lower surface of the traverse chassis; and a flexible cable that passes between the traverse chassis and the lever arm, is connected by one end thereof to the first circuit board, and is connected by the other end thereof to the second circuit board; wherein an opening that has a greater width than the width of the flexible cable is provided to a section of the lever arm in contact with the flexible cable.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A drive device for an optical disc apparatus, comprising: a traverse chassis; a vertically moving lever arm for covering part of the lower surface of the traverse chassis and supporting the traverse chassis; a first circuit board disposed on the upper surface of the traverse chassis; a second circuit board disposed on the lower surface of the traverse chassis; and a flexible cable that passes between the traverse chassis and the lever arm, is connected by one end thereof to the first circuit board, and is connected by the other end thereof to the second circuit board; wherein an opening that has a greater width than the width of the flexible cable is provided to a section of the lever arm in contact with the flexible cable.

Abstract: A drive device for an optical disc apparatus comprising: a lever arm for supporting a traverse chassis while allowing the traverse chassis to be raised and lowered; and a cam slider in cam engagement with the lever arm, the cam slider moving in a direction substantially orthogonal to a movement direction of the lever arm to cause the lever arm to move up and down; wherein the lever arm is provided with a boss projecting toward the cam slider, and a supported part supported by the cam slider in a chucked position of an optical disc; and wherein the cam slider is provided with a groove in engagement with the boss, and a support part for supporting the supported part in the chucked position of the optical disc.

Abstract: A disk device tray includes a first support component, a second support component and a step component. The first support component has a first support face with a first disk supporting area that supports an outer edge portion of a lower face of a first disk. The second support component has a second support face with a second disk supporting area that supports an outer edge portion of a lower face of a second disk. The step component has an inner side portion protruding upward with respect to an outer side portion. The inner side portion has a top face that is located lower than the second support face and a first inner peripheral face that extends upward from the first support face to the top face and restricts movement of the first disk in a radial direction of the first disk.

Abstract: A disk device includes a loader chassis, a traverse chassis, an optical pickup, a clamp mechanism and a cam mechanism. The cam mechanism pivots the traverse chassis with respect to the loader chassis between a loading position and an unloading position. The cam mechanism includes a follower, a cam plate, a guide member and a biasing member. The cam plate has a first restricting face that restricts a first direction movement of the follower with respect to the cam plate. The guide member has a second restricting face that restricts a second direction movement of the follower with respect to the guide member. The biasing member biases the follower towards both the first restricting face of the cam plate and the second restricting face of the guide member when the traverse chassis is located at the loading position.

Abstract: A disk device includes: a traverse chassis, one end of which is configured to be movable between a first position and a second position in a first direction; a cam member, formed with a cam groove configured to move in a second direction orthogonal to the first direction and having a first end and a second end; a cam follower fitted with the cam groove so as to be movable between the first end and the second end in accordance with the movement of the cam member; a guide member, having a guide face configured to guide the cam follower in the first direction in cooperation with the cam member; and an urging member, configured to urge the cam follower against an inner wall of the cam groove and the guide face when the cam follower is placed in the first end.

Abstract: There are provided a disc tray, a traverse unit, and a main chassis unit. The main chassis unit has a main chassis, which has, as observed when the traverse unit is in a stand-by position, a latch portion that engages with a projection portion of a sub rack and a stopper member that restricts the movement of the cam slider. The stopper member has a rotary shaft in the shape of a circular column, a lever portion which the projection portion makes contact, and a lock portion that makes contact with the cam slider and thereby restricts the sliding movement of the cam slider.

Abstract: A disk device includes a loader chassis, a traverse chassis, an optical pickup, a clamp mechanism and a cam mechanism. The cam mechanism pivots the traverse chassis with respect to the loader chassis between a loading position and an unloading position. The cam mechanism includes a follower, a cam plate, a guide member and a biasing member. The cam plate has a first restricting face that restricts a first direction movement of the follower with respect to the cam plate. The guide member has a second restricting face that restricts a second direction movement of the follower with respect to the guide member. The biasing member biases the follower towards both the first restricting face of the cam plate and the second restricting face of the guide member when the traverse chassis is located at the loading position.

Abstract: A disk device tray includes a first support component, a second support component and a step component. The first support component has a first support face with a first disk supporting area that supports an outer edge portion of a lower face of a first disk. The second support component has a second support face with a second disk supporting area that supports an outer edge portion of a lower face of a second disk. The step component has an inner side portion protruding upward with respect to an outer side portion. The inner side portion has a top face that is located lower than the second support face and a first inner peripheral face that extends upward from the first support face to the top face and restricts movement of the first disk in a radial direction of the first disk.

Abstract: A gear mechanism includes a first rack, a second rack and a gear component. The first rack is provided to a disk tray that is configured to move between a retracted position and an ejected position. The second rack is provided to a slider that is configured to reciprocally move between a first end position and a second end position. The gear component has a first gear, a second gear and an input gear. The first gear selectively meshes with the first rack to move the disk tray between the retracted position and the ejected position. The second gear selectively meshes with the second rack to move the slider between the first end position and the second end position. The input gear operatively coupled to the first and second gears. The first gear and the second gear have equal number of teeth and different modules.

Abstract: A disk device includes: a traverse chassis, one end of which is configured to be movable between a first position and a second position in a first direction; a cam member, formed with a cam groove configured to move in a second direction orthogonal to the first direction and having a first end and a second end; a cam follower fitted with the cam groove so as to be movable between the first end and the second end in accordance with the movement of the cam member; a guide member, having a guide face configured to guide the cam follower in the first direction in cooperation with the cam member; and an urging member, configured to urge the cam follower against an inner wall of the cam groove and the guide face when the cam follower is placed in the first end.

Abstract: There are provided a disc tray, a traverse unit, and a main chassis unit. The main chassis unit has a main chassis, which has, as observed when the traverse unit is in a stand-by position, a latch portion that engages with a projection portion of a sub rack and a stopper member that restricts the movement of the cam slider. The stopper member has a rotary shaft in the shape of a circular column, a lever portion which the projection portion makes contact, and a lock portion that makes contact with the cam slider and thereby restricts the sliding movement of the cam slider.