Abstract: The invention is to provide a gear holder in an optical disk drive, wherein a bolt upwardly protrudes from the bottom of a casing. A screw hole is disposed in the center of the bolt inserted by a wheel hole on the center of a gear. The height of the wheel hole is lower than the height of the bolt. A ring flange protrudes under the peripheral of a through hole disposed on a support cover. The width of the ring flange is equal to the width of the bolt, and the height thereof is equal to the height difference from the bolt to the wheel hole. The support cover is fastened on the bolt by a screw screwed in the screw hole, and then the gear is held and rotates between the casing and the support cover. The ring flange presses on the top of the bolt to maintain a rotation space.

Abstract: The invention provides a container for packaging disk drives comprising a lower cover and an upper cover. The lower cover is a thick, flat buffer having a rectangular carrier recess concavely disposed at the center of its top surface. The carrier recess is divided into a plurality of partition spaces by criss-crossing flat partition board. The lower end of the partition board is inserted into the carrier recess. An indent is disposed at the top end of each partition spaces. A plurality of vertical wings protrude from the center of each side of the partition board where the lower end of the wings sits on the edge of carrier recess of lower cover. The upper cover is a thick, flat buffer having a rectangular carrier recess concavely disposed at the center of its bottom surface. The carrier recess of the upper cover can cover the top end of partition board such that its edge can sit on the upper end of the wings to load more disk drives.

Abstract: An optical disc drive including an optical disc drive body and a tray is provided. The tray is movably disposed on the optical disc drive body. The tray has a side wall. The side wall has a through hole.

Abstract: An emergency ejection device in a slot-in optical drive includes a panel with a hole. A sliding part disposes a pushing block on the path which passes through the hole into the slot-in optical drive. A guiding groove is disposed between the hole and the pushing block. The sliding part links to a loading/unloading mechanism and a rack on the sliding part engages one end of a gear set. The gear set includes a plurality of gears engaging each other one by one for transporting the power. A worm gear with a lead angle larger than the self-lock critical angle, i.e. arctan (?/cos B), engages the other end of the gear set. A stick can put into the hole to push the pushing block backward to move the sliding part for ejecting a disc.

Abstract: A tray-type optical disc drive includes a base unit, an optical disc drive body, a front panel and a disc tray. The disc tray includes at least a retainer and a receiver. The receiver includes a horizontal bearing area, a ramp and a vertical bearing area. The ramp outwardly adjoins the horizontal bearing area while the vertical bearing area outwardly adjoins the ramp. The horizontal bearing area contacts with the outer edge of the disc when the disc is under horizontal disposition. The retainers are disposed on the receiver. When the disc is under vertical disposition, the retainers stop the disc edge for the disc to be positioned. The vertical bearing area and the retainer stop the lower edge of the disc edge. The upper edge of the disc edge leans against the horizontal bearing area.

Abstract: A tray-type optical disc drive including an optical disc drive body, a tray, a first ventilation portion and a second ventilation portion is provided. The tray movable in and out of the optical disc drive body includes a side wall and a loader. The loader adjoins the side wall. The loader further has a disc-loading region for receiving an optical disc. The first ventilation portion is disposed on the side wall, and the second ventilation portion is disposed on the loader. The airflow generated when the optical disc rotates passes through the first ventilation portion and the second ventilation portion so as to reduce the noises of the optical disc drive.

Abstract: A feeding device of a slot-in disk drive is disposed in a casing of the disk drive and includes a traverse. A bolt is disposed on and protrudes from a side of the traverse. A flange extends from the side of the traverse near the bolt. A pre-stressed piece is a bended elastic body. One end of the pre-stressed piece is fixed to the flange of the traverse, and the other end is fixed to the casing. The pre-stressed piece presses the traverse downward by its elastic force. A slider includes a protrusion with a groove formed on a side of the protrusion. The bolt is inserted into and slides within the groove. The groove includes an unloading end, an inserting portion and a loading end. An opening is formed on the upper surface of the slider near the inserting portion for reducing the thickness of the disk drive.

Abstract: A slot-in disk drive device has a drive unit for providing power to move a slider and thus a sliding plate attached to the slider. Guiding slots on the sliding plate rotate a transmission bar. A guide pin is disposed on the transmission bar and moves with a loading stick. One end of a receiving bar is formed with a locking slot. A substrate having inclined slots arranged in parallel and used for guiding the receiving bar. A locking member mounted on the disk drive device has a stopper edge located on moving path of projecting guide pin of the transmission bar and a locking pin. One end of a pulling spring is fixed to the locking member so that the locking pin locks with the locking slot. One end of a restoring bar is mounted on the substrate, and a restoring torsion spring supports and restores the receiving bar.

Abstract: A slot-in disk drive device and a method thereof. The device includes a drive unit for providing power to move a slider. A loading unit moving with the slider drives a loading stick to push a disc into the device. The slider has a sliding slot. An ejecting unit with a bar-linkage mechanism has one end driven by the sliding slot, and the other end for rotating an ejecting bar to guide or push the disc out. A receiving unit has a receiving bar for guiding the disc, and has a positioning bar disposed between the loading unit and the ejecting unit. A sensing unit includes a plurality of sensing switches respectively disposed near the moving paths of the receiving bar, the ejecting unit and the positioning bar. The drive unit is enabled to load the disk is determined according to the order of actuating the switches.

Abstract: A fixing mechanism for use in a peripheral storage device having a cover and a core, includes a first hook slip element on the cover and a second hook slip element on the core. The first hook slip element is formed with a bending part and an extension part. The second hook slip element is formed with a first step part on which the bending part rests and a hook slip part for the extension part to pass therethrough to be engaged with the hook slip part, such that the cover and the core are hooked together in a way that movement of the cover in both vertical and horizontal directions is restricted with respect to the core.

Abstract: An electrostatic discharge protection apparatus disposed in an optical disk drive includes a spindle motor and a feeding mechanism for driving a pick-up head. The mechanism includes a sled motor for driving the pick-up head. A traverse is disposed in a casing of the optical disk drive for disposing the motor and the mechanism. The electrostatic discharge protection apparatus is an elastic sheet disposed at one end of the spindle motor adjacent to the sled motor and includes a main body and several strips extending from the main body. The main body is connected with a metal fixing plate of the spindle motor. One strip contacts the sled motor, another strip contacts the guide bar, and another obliquely protruding strip penetrates and contacts a base plate and presses against the casing. A big electrostatic discharge sink is formed to buffer the transient impact caused by high electrostatic charges.

Abstract: An insertion-proof device for optical disk drive is provided to prevent other discs from being inserted in the operating disk drive. A slider moves back and forth along the optical disk drive to load and unload a disc. A push head is disposed on one end of the slider near an entrance. A protrusion is extended backward from the protection unit and disposed on the moving path of the slider. At least one supporting arm is extended from the protection unit. After a disc is loaded, the push head pushes the protrusion, so that the protection unit rotatably fixed near the entrance is turned upward to cover part of the entrance to prevent other discs from being inserted in the operating disk drive. When unloading a disc, the push head releases the protrusion, so that the protection unit leaves the entrance for the original position.

Abstract: An ejection device of a slot-in optical disc drive includes a rotating plate and an elastic unit. The rotating plate is installed on the slot-in optical disc drive and attached to an actuating gear of a feeding gear unit. The actuating gear is capable of following the rotation of the rotating plate to disengage from the feeding gear unit of the slot-in optical disc drive. The elastic unit is attached to the rotating plate to keep the actuating gear engaged with the feeding gear unit. A push wall of the rotating plate and a push block of a sliding piece, connected with the output of the feeding gear unit, are located sequentially on the path of a hole penetrating into the optical disk drive. A stick can be inserted into the hole to activate the ejection device.

Abstract: A shock isolation structure applied in an optical disc drive is provided. The shock isolation structure includes a bottom portion, a top portion, and a neck portion jointing the bottom portion and the top portion. The portions have a through hole running through the top surface of the top portion and the bottom surface of the bottom portion along a run-through central line. In the neck portion, any ring-shaped cross section using the run-through central line as the normal has a first wall thickness on a first extension line starting from the run-through central line and extending towards the outer peripheral of the ring-shaped cross section, and has a second wall thickness on a second extension line starting from the run-through central line and extending towards the outer peripheral of the ring-shaped cross section. The first wall thickness is larger than the second wall thickness.

Abstract: A tray-type optical disc drive including an optical disc drive body, a tray, a first ventilation portion and a second ventilation portion is provided. The tray movable in and out of the optical disc drive body includes a side wall and a loader. The loader adjoins the side wall. The loader further has a disc-loading region for receiving an optical disc. The first ventilation portion is disposed on the side wall, and the second ventilation portion is disposed on the loader. The airflow generated when the optical disc rotates passes through the first ventilation portion and the second ventilation portion so as to reduce the noises of the optical disc drive.

Abstract: A tray-type optical disc drive includes a base unit, an optical disc drive body, a front panel and a disc tray. The disc tray includes at least a retainer and a receiver. The receiver includes a horizontal bearing area, a ramp and a vertical bearing area. The ramp outwardly adjoins the horizontal bearing area while the vertical bearing area outwardly adjoins the ramp. The horizontal bearing area contacts with the outer edge of the disc when the disc is under horizontal disposition. The retainers are disposed on the receiver. When the disc is under vertical disposition, the retainers stop the disc edge for the disc to be positioned. The vertical bearing area and the retainer stop the lower edge of the disc edge. The upper edge of the disc edge leans against the horizontal bearing area.

Abstract: An optical disc drive including an optical disc drive body and a tray is provided. The tray is movably disposed on the optical disc drive body. The tray has a side wall. The side wall has a through hole.

Abstract: The present invention provides a letch mechanism of an optical disk drive, which disposes a frame including an openning on the tray. A shape memory alloy is fixed in the frame and includes a movable end stretching out of the openning. A hook portion is equipped with a pivot and a hook connected with the movable end. A spring is attached to the pivot and extends one end to fasten on the hook portion. A locking pin is disposed on the position corresponding to the hook.

Abstract: A sliding mechanism for an optical compact disk drive includes right and left slide tracks respectively mounted at opposite sides of a tray of the optical compact disk drive. A plurality of bulbous contacts are formed on the right and left slide tracks respectively to fit with a plurality of retaining portions of a lower cover of the optical compact disk drive. By respectively having the bulbous contacts in point to point contact with the corresponding retaining portions, the tray smoothly moves in a stable manner between its outermost and innermost positions. A slide body of each slide track is provided with a hook, a protection piece and a fastening piece to hold the tray at its outermost or innermost positions. Thereby, the stability and effectiveness of the optical compact disk drive assembled with the sliding mechanism of the invention is increased.