Abstract: A heat-dissipating structure of a disc drive comprises a tray and a diversion plate. The tray has a body with a concavity loading surface for loading a disc to be in and out the disc drive, and the loading surface has a central hole. Further the diversion plate is disposed on one side of the loading surface, and connected to the loading surface, wherein the diversion plate extends downward and slopes from the connection of the diversion plate and the loading surface.

Abstract: The present invention relates to a mechanism for guiding airflows within an optical disc drive, in which the optical disc drive comprises a chassis having a side wall and a tray for loading or unloading a disc. The guide mechanism of the present invention includes at least one guide passage which is protruded outwardly from the side wall of the chassis and has two guiding oblique surfaces at its both ends. Further, the guide passage is positioned on an extended line of a diameter of the disc normal to the side wall of the chassis. The airflows produced by the revolving disc is guided to flow through the guide passage. According to the guide mechanism the shocks, jarring, and noise of the optical disc drive is minimized.

Abstract: A flexible printed circuit for electrically connecting a disk tray to a chassis of an optical disk drive has a base layer, a copper layer, and a cover layer. The copper layer is attached to the base layer by a first adhesive layer, and has a plurality of separate electrical wires and a ground area. The cover layer has a cutout area corresponding to the ground area, and is attached to the copper layer by a second adhesive layer. A third adhesive layer is electrically conductive and used for attaching the cover layer to the chassis of the optical disk drive. Wherein the third adhesive layer is electrically connected to the ground area of the copper layer through the cutout area, the static charges accumulated on the copper layer will be discharged to the chassis.

Abstract: A heat-dissipating structure of a disc drive comprises a tray and a diversion plate. The tray has a body with a concavity loading surface for loading a disc to be in and out the disc drive, and the loading surface has a central hole. Further the diversion plate is disposed on one side of the loading surface, and connected to the loading surface, wherein the diversion plate extends downward and slopes from the connection of the diversion plate and the loading surface.

Abstract: A disk recording/reading apparatus for recording/reading a disk is provided. The disk recording/reading apparatus includes a case, a tray, a turntable and an optical pickup unit. The tray is inside the case and has a concave trough and a concave trough extension portion. The concave trough is used for accommodating a disk, and the concave trough extension portion stretches from the concave trough to a side of the tray front end and has an opening passing through the tray. The turntable is disposed below the tray for driving the disk. Wherein, at least a spinning airflow below the disk is suitable for being expelled from the opening of the concave trough extension portion to reduce the noise caused by air turbulence and the vibration during disk spin.

Abstract: An optical disk drive includes a main body and a tray. A tray locking mechanism includes a base fixed to the tray, a locking device installed on the base for combining with or separating from a stop pin of the main body, a transmission device installed on the base for driving the locking device, and a control device installed on the base for stopping the transmission device. When the locking device combines with the stop pin of the main body, the tray can be locked to the main body, and when the transmission device drives the locking device to be separated from the stop pin of the main body, the tray can eject from the main body and the control device can stop the transmission device from rotating.

Abstract: A disc braking device is utilized in an optical disc drive. The disc braking device is installed on a disc tray of an optical disc drive. Without being affected by an covering component or the location of the disc braking device, the disc braking device makes a disc stop rotating in a more direct and efficient way. The disc braking device contains a structure portion; a braking rod installed and not fixed on the structure portion; and a braking component installed on the braking rod and utilized for making the disc stop rotating.

Abstract: A flexible printed circuit for electrically connecting a disk tray to a chassis of an optical disk drive has a base layer, a copper layer, and a cover layer. The copper layer is attached to the base layer by a first adhesive layer, and has a plurality of separate electrical wires and a ground area. The cover layer has a cutout area corresponding to the ground area, and is attached to the copper layer by a second adhesive layer. A third adhesive layer is electrically conductive and used for attaching the cover layer to the chassis of the optical disk drive. Wherein the third adhesive layer is electrically connected to the ground area of the copper layer through the cutout area, the static charges accumulated on the copper layer will be discharged to the chassis.

Abstract: A locking mechanism for a disk reading device has a body, and an absorber provided on the body for absorbing impact energy. The absorber can be implemented in the form of an elastic material on the body of the locking mechanism, or by providing one or more hollowed regions on the body of the locking mechanism, or by providing resilient members that function to further absorb the impact energy.

Abstract: An optical disk drive includes a main body and a tray. A tray locking mechanism includes a base fixed to the tray, a locking device installed on the base for combining with or separating from a stop pin of the main body, a transmission device installed on the base for driving the locking device, and a control device installed on the base for stopping the transmission device. When the locking device combines with the stop pin of the main body, the tray can be locked to the main body, and when the transmission device drives the locking device to be separated from the stop pin of the main body, the tray can eject from the main body and the control device can stop the transmission device from rotating.

Abstract: A disc braking device is utilized in an optical disc drive. The disc braking device is installed on a disc tray of an optical disc drive. Without being affected by an covering component or the location of the disc braking device, the disc braking device makes a disc stop rotating in a more direct and efficient way. The disc braking device contains a structure portion; a braking rod installed and not fixed on the structure portion; and a braking component installed on the braking rod and utilized for making the disc stop rotating.

Abstract: A disk drive has a tray with a chassis secured to the tray, the tray and the chassis being housed inside a housing. The disk drive includes a slide mechanism that is positioned between the chassis and the tray, and which is movable independently from the chassis. The disk drive also includes a locking and ejection mechanism that includes a first part that is secured to the chassis and a second part that is secured to the slide mechanism. The tray is locked inside the housing when the first part and second part engage each other, and the tray is ejected from the housing when engagement between the first part and second part is released.

Abstract: A guide rail assembly for use with a disk drive has a first rail that has a raised ridge with a wavy upper edge and a wavy lower edge. The assembly also has a second rail having a channel defined therein, with the channel having a wavy upper wall and a wavy lower wall. The raised ridge of the first rail is positioned for reciprocating movement inside the channel of the second rail.

Abstract: A locking mechanism for a disk reading device has a body, and an absorber provided on the body for absorbing impact energy. The absorber can be implemented in the form of an elastic material on the body of the locking mechanism, or by providing one or more hollowed regions on the body of the locking mechanism, or by providing resilient members that function to further absorb the impact energy.

Abstract: A disk drive has a tray with a chassis secured to the tray, the tray and the chassis being housed inside a housing. The disk drive includes a slide mechanism that is positioned between the chassis and the tray, and which is movable independently from the chassis. The disk drive also includes a locking and ejection mechanism that includes a first part that is secured to the chassis and a second part that is secured to the slide mechanism. The tray is locked inside the housing when the first part and second part engage each other, and the tray is ejected from the housing when engagement between the first part and second part is released.

Abstract: A guide rail assembly for use with a disk drive has a first rail that has a raised ridge with a wavy upper edge and a wavy lower edge. The assembly also has a second rail having a channel defined therein, with the channel having a wavy upper wall and a wavy lower wall. The raised ridge of the first rail is positioned for reciprocating movement inside the channel of the second rail.

Abstract: Turntable runout of an optical disk drive is corrected by the application of at least three skidproof rubber pads affixed to the turntable on a circle and separated by equal angles. The height of each of the skidproof rubber pads is selected to adjust the runout of the turntable at each location. The invention accomplishes the compensation of turntable runout where, traditionally, lathe-turning was required.

Abstract: A method for manufacturing the roller carrier of a vibration balance device, the roller carrier is installed with at least one round track around a rotary axis thereof for carrying a plurality of rollers; characterized in that: the roller carrier is made of alloy powder and made by a process of metal powder metallurgy. The material of the powder is SUS-316L or other proper alloy powder. The manufacturing process of the metal powder metallurgy includes the steps of: feeding material, compacting, sintering, and sizing, or other manufacturing process of the metal powder metallurgy (MIM) can be used, which includes the steps of feeding material, pelletizing, injection molding, debinding, sintering, and sizing. The roller carrier from aforementioned processes uses less materials, can be mass-produced, has a precise dimension, is light weighted, has a smooth surface and has a high surface hardness.