Abstract: Provided is an optical disc drive including a tray on which a spindle motor assembly is mounted. The spindle motor assembly may include a turntable, a conductive plate to which a motor is fixed, a frame to which the conductive plate is fixed, a flat cable that is connected to the spindle motor and includes a ground line, and a first coupling member that passes through the flat cable and the conductive plate and is coupled to the frame.

Abstract: An integrated disk driving module is disclosed, the module including a base unit including a stepping motor fixture bent from an upper plate toward an accommodation space, wherein the stepping motor fixture is integrally formed with the upper plate, and a stepping motor rotatably fixed to the stepping motor fixture.

Abstract: The embodiments herein describe an apparatus and method for a reduced Z stack slot loading optical disc drive (ODD). In one embodiment a reduced Z stack height slot loading optical disc drive (ODD) is described.

Abstract: A spindle motor is disclosed, the spindle motor including a case including a lateral wall unit formed with a hollow hole, and a support unit extended to an inner side of a distal end of the lateral wall unit, a clamper arranged inside the lateral wall unit and supported by the support unit for clamping an upper surface of the optical disc, a cover plate covering the clamper, and an elastic member interposed between the clamper and the cover plate to apply a pressure to the clamper to a direction facing the upper surface of the optical disc.

Abstract: An integrated disk driving module is disclosed, the module including a base unit including a spindle motor fixture including an opening-formed upper plate, a lateral surface plate bent from the upper plate to form an accommodation space, and a spindle motor fixture concavely formed from the upper plate toward the accommodation space, wherein the spindle motor fixture is integrally formed with the upper plate; and a spindle motor fixed inside the spindle motor fixture to rotate a disk.

Abstract: There are provided a motor and a disk driving device equipped with the motor. The motor may include a core on which a coil is wound, a rotor having a magnet generating an electromagnetic force through an interaction with the coil, and rotating a shaft, a sleeve housing including an inner diameter part to which a sleeve supporting the shaft is press-fitted, a core seating part extended outside in an outer diameter direction from the inner diameter part, and an outer diameter part extended to an axial lower side of the sleeve from the core seating part, and a base plate including a strength reinforcement part formed therein, the strength reinforcement part being brought into contact with the outer diameter part and at least one part of an inner surface of the core seating part.

Abstract: Disclosed herein is a slip prevention member for a turntable. A friction layer prevents a slip of a disk placed on an upper surface thereof. A hardness reinforcing layer is provided under the lower surface of the friction layer. An adhesive layer is provided under the lower surface of the hardness reinforcing layer. A releasable sheet is attached to the lower surface of the adhesive layer. The slip prevention member reduces use of environmentally toxic material and uses the hardness reinforcing layer, thus preventing occurrence of vibrations and noise which may be induced when the hardness of the slip prevention member is relatively low.

Abstract: An integrated disk driving module is disclosed, the module including a base unit including a spindle motor fixture including an opening-formed upper plate, a lateral surface plate bent from the upper plate to form an accommodation space, and a spindle motor fixture concavely formed from the upper plate toward the accommodation space, wherein the spindle motor fixture is integrally formed with the upper plate; and a spindle motor fixed inside the spindle motor fixture to rotate a disk.

Abstract: A disclosed disk clamping mechanism includes a turntable fixed on a rotational shaft of a spindle motor to rotate a flexible thin optical disk, a stabilizer member configured to suppress a run-out of the flexible thin optical disk by an applying aerodynamic force to the rotating flexible thin optical disk so as to stabilize the run-out of the rotating flexible thin optical disk, and a clamper movably supported in a center of the stabilizer member in a direction perpendicular to a surface of the flexible thin optical disk. In the disclosed disk clamping mechanism, the flexible thin optical disk is sandwiched between the turntable and the clamper such that the turntable and the clamper rotate the flexible thin optical member sandwiched in-between.

Abstract: A disc drive apparatus comprises: a spindle motor 20 for hold a disc 2 and for rotate it; an optical head 7 for conducting either one of recording or reproducing of information onto/from the disc; a driver unit for moving the optical head in a radial direction of the disc; and a unit mechanism chassis 8 for supporting those thereon, fixedly, wherein the spindle motor is constructed with a rotational drive means made of a magnetic circuit, a rotor portion and a rotation shaft, which define a rotation body, and a spindle motor attachment plate to hold those thereon, and the spindle motor attachment plate has a semi-circular shaped plate configuration in a part thereof, nearly fitting to an outer diameter the rotor portion, in a direction where the optical head is provided, and has a step-like structure in thickness direction of the plate thereof, within a semi-circular shaped region with respect to a line connecting between corner portions on both ends of that semi-circular shape, and also bridging over that li

Abstract: A motor in which a coupling structure between a sleeve holder and a base plate is improved. The motor may include a base plate including at least one protrusion supporting part formed therein; and a sleeve holder including a cylindrical shaped body part to which a sleeve is fastened in an inside of the sleeve holder, an extension part protruded such that an outer diameter is extended along an outer circumferential surface of the body part, and a flange part vertically protruded in an outer diameter direction from a lower end portion of the extension part so as to make surface contact with an upper surface of the base plate, where the sleeve holder is fastened to the base plate while an outer circumferential surface of the protrusion supporting part is brought into contact with an inner circumferential surface of the extension part.

Abstract: A disc drive including a tray, a housing configured to receive the tray, a pickup device installed on the tray, and a spindle motor including a rotator having built therein a permanent magnet, a stator including a magnetic coil, and a rotation axis supporting portion that is configured to support a rotation axis of the rotator and fixed to the tray.

Abstract: An integrated disk driving module is disclosed, the module including a base unit including an opening-formed upper plate, a lateral surface plate bent from an edge of the upper plate to form an accommodation space, and a stepping motor fixture bent from the upper plate toward the accommodation space, wherein the stepping motor fixture is integrally formed with the upper plate; and a stepping motor including a lead screw and a pivot member arranged at a distal end of the lead screw and coupled to the stepping motor fixture, and wherein the stepping motor fixture is formed with an insertion groove into which the pivot member is secured, where width of the insertion groove is larger than a diameter of the pivot member.

Abstract: A side pressure applying mechanism for a motor may include a rotation shaft of the motor rotatably supported through a support bearing, a side pressure bearing which is loosely fitted to the rotation shaft, an urging member which is abutted with the side pressure bearing to apply a side pressure to the rotation shaft, engaging parts which are formed in a frame and with which both end portions of the urging member are respectively engaged, and a restricting part for restricting movement of the urging member toward the axial direction of the rotation shaft. The restricting part is provided at a position nearer to an abutting position where the urging member is abutted with the side pressure bearing between an engaging position where the urging member is engaged with the engaging part and the abutting position of the urging member with the side pressure bearing.

Abstract: There is provided a motor with an improved sleeve holder and base plate combining structure and an optical disc drive using the same. The motor according to the present invention includes a base plate having a plate shape; a sleeve holder including a cylindrical body part having a sleeve fastened thereinto and a flange part formed to be horizontally protruded in an outer-diameter direction from the lower end portion of the body part to surface-contact the upper surface of the base plate.

Abstract: Provided is an optical disc drive including a tray on which a spindle motor assembly is mounted. The spindle motor assembly may include a turntable, a conductive plate to which a motor is fixed, a frame to which the conductive plate is fixed, a flat cable that is connected to the spindle motor and includes a ground line, and a first coupling member that passes through the flat cable and the conductive plate and is coupled to the frame.

Abstract: A traverse for an optical disc drive comprising a base, a main shaft motor, a pick-up motor and a pick-up head module is provided. The base includes a bottom plate and a plurality of raised mesas. The bottom plate has an opening and the raised mesas connect with the bottom plate. The main shaft motor is disposed on the raised mesas. The pick-up motor is disposed on the bottom plate and the pick-up head module connects with the pick-up motor. The pick-up motor enables the pick-up head module to move inside the opening. Additionally, the present invention also provides an optical disc drive with the said traverse.

Abstract: There is provided a motor formed to have a simple coupling structure between a base plate and a sleeve holder, thereby implementing a simple structure and reducing costs and processes taken for manufacturing the motor, and an optical disc drive using the same. To this end, the motor includes a base plate having at least one protrusion formed therein, and a sleeve holder having a body part, of which the shape is cylindrical and in which a sleeve is fitted, and a flange protrudingly formed from a lower end of the body part in such a manner as to make surface-to-surface contact with an upper surface of the base plate, wherein the flange is formed to have at least one insertion hole, through which the protrusion is inserted so that the sleeve holder is coupled to the base plate.

Abstract: A lifting frame has a lifting pin that fits into a lifting cam groove of a follower slider, and swings up and down about a rod near a disk slot. A holding member is swingably attached to front end of the lifting frame. This holding member supports a turntable unit for holding a disk. The holding member has a cam follower pin that fits into a swinging cam groove of a loading slider to raise and lower the holding member. When the lifting frame swings down from a read/write position to a lowered position, the holding member inclines from the lifting frame so as to place the turntable unit substantially parallel to a disk carrying direction.

Abstract: Disclosed is a recording medium drive apparatus configured to drive a recording medium, including a case, a drive source used for loading/ejecting the recording medium into/from the case, a motor unit configured to hold the recording medium and rotate the recording medium held, a pickup unit configured to record a signal on the recording medium rotated by the motor unit or reproduce the recorded signal, a first slider driven by the drive source to slide a first distance in a first direction, a second slider that is cam-engaged with the pickup unit and slides in a second direction to move the pickup unit upward and downward, a moving member that is releasably engaged with the first slider, engaged with the pickup unit, and cam-engaged with the motor unit, and moves the motor unit upward and downward, and a link mechanism configured to link the first slider and the second slider.

Abstract: An optical device and method are provided including a spindle motor mounted in a turn table on which an optical disk is attached and detached. The optical device includes a bracket secured with a stator of the spindle motor. The optical device also includes a tray body directly connected to the bracket. A skew angle of the spindle motor is adjusted while the bracket is assembled to the tray body, and an adjusting method of the optical device.

Abstract: A slot-in type thin disk apparatus having a base body and a lid, which constitute a chassis outer sheath. A front surface of the chassis outer sheath is formed with a disk inserting opening into which a disk is directly inserted. The slot-in type disk apparatus is provided with a traverse moving unit which displaces a traverse base between the base body and the lid. The traverse base moving unit includes a loading motor provided on the chassis outer sheath, a slider which slides by driving of the loading motor, and a traverse cam member which is operated by movement of the slider.

Abstract: An optical disk device includes: a disk motor for rotating an optical disk D inserted into a package; an optical pickup that moves in a radial direction of the optical disk, for controlling recording information on the optical disk or reading information from the optical disk; a chassis that is a base for supporting the disk motor and the optical pickup to chuck the optical disk directly inserted into the package to the disk motor; a motor plate that secures the disk motor to the base and that has one side, where the optical pickup is not located, supported by the base and the other side overhanging; and a raised portion for buffering elastic deformation of the optical pickup side of the disk motor plate.

Abstract: A spindle motor includes a base plate, a stator, and a rotor. The base plate has a plurality of air-guiding holes. The stator includes a bearing portion and a plurality of coil portions. The bearing portion is fixed on the base plate. The coil portions are connected to and surrounded the bearing portion, and are disposed above the air-guiding holes. The rotor is rotatably mounted to the bearing portion and disposed adjacent the coil portions.

Abstract: A spindle motor is provided. The spindle motor includes a rotation shaft rotatably installed, a stator around the rotation shaft, a rotor coupled to the rotation shaft, a turntable rotated with the rotation shaft, and a center guide member comprising a body coupled to the rotation shaft and a support rim extending from the body, the support rim can comprise a first sloped surface extending from an outer surface of the body and making an angle of about 47° to 53° with an imaginary vertical line parallel with the rotation shaft, and a second sloped surface extending from an end of the first sloped surface and making an angle of about 16° to 22° with an imaginary vertical line parallel with the rotation shaft.

Abstract: An integrated disk driving module is disclosed, the module including a base unit including an opening-formed upper plate, a lateral surface plate bent from an edge of the upper plate to form an accommodation space, and a first motor fixture concavely formed from the upper plate to the accommodation space, and a second motor fixture bent from the upper plate to the accommodation space, wherein the first and second motor fixtures are integrally formed to the upper plate; a spindle motor fixed inside the first motor fixture to rotate a disk; a stepping motor rotatably fixed to the second motor fixture; a circuit substrate arranged at the base unit to be electrically connected to the spindle motor and the stepping motor, and encoder module including an encoder base coupled to an encoder opening formed at the upper plate of the base unit, an encoder coupled to a through hole of the encoder base to sense revolution of the disk, and an encoder circuit substrate electrically connected to the encoder and coupled to th

Abstract: An integrated disk driving module is disclosed, the module including a base unit including a spindle motor fixture including an opening-formed upper plate, a lateral surface plate bent from the upper plate to form an accommodation space, and a spindle motor fixture concavely formed from the upper plate toward the accommodation space, wherein the spindle motor fixture is integrally formed with the upper plate; and a spindle motor fixed inside the spindle motor fixture to rotate a disk.

Abstract: An integrated disk driving module is disclosed, the module including a base unit formed with a first motor fixture concavely formed on an upper plate, and a second motor fixture bent from the upper plate in opposition to the first motor fixture, wherein the first and second motor fixtures are integrally formed on the upper plate; a spindle motor secured inside the first motor fixture to rotate a disk; and a stepping motor rotatably secured to the second motor fixture.

Abstract: An integrated disk driving module is disclosed, the module including a base unit including a stepping motor fixture bent from an upper plate toward an accommodation space, wherein the stepping motor fixture is integrally formed with the upper plate, and a stepping motor rotatably fixed to the stepping motor fixture.

Abstract: Disclosed is a spindle motor structure including a spindle motor portion including a stator wound with a coil, a rotor rotating in reaction to the stator, and a rotational axis that is a rotational center of the rotor; a stepping motor portion including a lead screw to move an optical pick-up device; and a single body type bracket that has the spindle motor portion and stepping motor portion engaged thereto.

Abstract: An optical disk drive includes a spindle motor for rotating an optical disk, and an optical pickup head. On a base plate, a pickup moving motor moves the optical pickup head in a disk radial direction. A motor plate supports the spindle motor. A spacer holder has a small thickness, and is secured to the base plate. A spacer boss is disposed to project from the spacer holder toward the motor plate. A first hole is formed through the spacer boss. A retaining screw has first and second shaft portions. A screw hole is formed in the base plate, for engagement with the first shaft portion inserted through the first hole, to retain the retaining screw. A great diameter peripheral surface is positioned at the second shaft portion, for applying pressure to fit the spacer boss tightly on the motor plate. Further, the spacer is formed from plastic material.

Abstract: A fixing structure fixes the position of a spindle motor against a traverse chassis in the direction of the movement of an optical pickup (first direction), and can be adjusted in the direction perpendicular thereto (second direction). In the bottom surface of the spindle motor: an elongated reference hole, the longest dimension of which extends in the radial direction, centered on a main shaft; and three screw holes circumferentially spaced, centered on the main shaft. A traverse chassis includes a protrusion engaged within the reference hole; and elongated through holes elongated in the second direction at positions corresponding to those of the screw holes. The cross-sectional width A of the protrusion in the first direction is approximately the same as the width of the reference hole, while the cross-sectional width B in the second direction is smaller than the cross-sectional width A in the first direction.

Abstract: According to an embodiment of the present invention, there is provided an information recording apparatus, such as a digital camera, arranged to record information on a detachably mountable storage medium, such as for example to record video data on the storage medium. In one version of the apparatus, when a connection of an AC adapter is cancelled, the storage medium is detected by a storage medium detection unit, and in a case where the storage medium is not mounted to the mounting unit, a warning is issued, for example in an audio output unit or a display unit. Accordingly, the user can find out that the storage medium is not mounted before the digital camera has been brought outside for use. Thus, it may be possible to prevent a failure in which the user first realizes that they forgot to mount the storage medium only when they are already away from home.

Abstract: A traverse module for a disc apparatus includes a chassis, a spindle motor for rotating a disc thereon, a gasket set positioned between the spindle motor and the chassis; and a screw set corresponding to the gasket set. The spindle motor is mounted on the chassis. The screw set adjustably secures the spindle motor and the chassis via the gasket set.

Abstract: The present invention relates to a high-density disk that is structured to prevent a collision of an optical pickup's objective lens with the high-density disk if the disk is placed upside down in a disk device that is able to record and reproduce signals to/from the high-density disk. A high-density disk recording medium according to the present invention is structured such that, wherein a recording layer having high-density pit patterns is offset from a center plane of disk thickness, a center hole of the disk recording medium is asymmetric in shape with respect to the center plane where, for example, both entrances of the center hole have mutually different diameters.

Abstract: A deviation adjustment mechanism for spindle motor and pickup head of optical disk drives includes an optical disk drive dock for holding a pickup head and a motor holding seat for holding a spindle motor. The motor holding seat has a retaining flange on one edge. The optical disk drive dock and the motor holding seat are connected by an elastic element to move the motor holding seat in one direction in normal conditions. An adjusting member is provided to press the retaining flange to move the motor holding seat towards another side to adjust the deviation of the spindle motor and the pickup head of the optical disk drive.

Abstract: An optical disc apparatus includes a base for supporting a unit mechanism portion as well as a motor fixed plate to which a spindle motor is attached. In the optical disc apparatus, a portion of the outside of an outer diameter of the spindle motor is brought into contact with an outer edge of the base so that the portion thereof is supported by the base.

Abstract: A high-precision positioning apparatus includes a fine driving unit for producing horizontal and small movements of a flat recording medium relative to an optical system, the medium being used for optically recording and reproducing information. The fine driving unit includes a frame-shaped unit body, a first driving frame inside the unit body, and a second driving frame inside the first driving frame and secured at a position adjacent to a magnetized portion of the recording medium. The first driving frame is movable relative to the unit body by fine driving devices in the horizontal direction of the recording medium, while the second driving frame is movable relative to the first driving frame by other fine driving devices in the horizontal direction of the recording medium and in the direction substantially orthogonal to the moving direction of the first driving frame, thereby producing horizontal and small movements of the recording medium.

Abstract: An optical disk drive includes a spindle motor for rotating an optical disk, and an optical pickup head. On a base plate, a pickup moving motor moves the optical pickup head in a disk radial direction. A motor plate supports the spindle motor. A spacer holder has a small thickness, and is secured to the base plate. A spacer boss is disposed to project from the spacer holder toward the motor plate. A first hole is formed through the spacer boss. A retaining screw has first and second shaft portions. A screw hole is formed in the base plate, for engagement with the first shaft portion inserted through the first hole, to retain the retaining screw. A great diameter peripheral surface is positioned at the second shaft portion, for applying pressure to fit the spacer boss tightly on the motor plate. Further, the spacer is formed from plastic material.

Abstract: A method of manufacturing and an overmolded mounting base. A plate is provided with mounting surfaces having a range of alignments including a nominal alignment. The plate is overmolded to form an overmolded plate. The overmolding changes the alignment of the mounting surfaces. The overmolded plate is maintained at a creep temperature for a time interval sufficient for creep to restore the alignment toward the nominal alignment.

Abstract: An easy-to-manufacture spindle motor has an aligning mechanism whose precision is equal to that of cutting of metallic materials without entailing an extra cost. The aligning mechanism is in contact with the center hole of a disk-shaped recording medium and comprises a turntable and an aligning member that has a sliding portion which can be slidably fitted into a guide portion disposed on the turntable. At least one of respective sliding faces of the guide portion disposed on the turntable and the aligning member is configured of a metallic component, and parts other than the metallic component or components of the turntable and/or aligning member are configured of resin materials.

Abstract: The spindle motor for a slim optical disk apparatus has a stator, a rotor, a circuit board, and a mounting plate. The circuit board is within the range covered by the rotor and has a plurality of electronic components used on the spindle motor and a plurality of electric contacts for connecting an external connecting piece. The mounting plate is used at least for fixing the circuit board and has an area in correspondence by position with the electric contacts of the circuit board, wherein the area provides a space required for connecting of the electric contacts with the external connecting piece.

Abstract: A disk drive apparatus includes a turntable having a boss at its one side surface and a rotation center hole, and a rotary shaft inserted and fixed in the hole, an inner circumferential surface of the hole being configured to have a fitting portion near to another side surface of the turntable, a cylindrical clearance near to the one side surface opening in an end of the boss, and a large diametrical portion expanded outward in a radial direction of the hole from the clearance and opening in the end and/or an outer circumferential surface of the boss, the shaft inserted in the hole being fixed to the fitting portion by press fitting and to the clearance and large diametrical portion by adhesive filled in the clearance and large diametrical portion.

Abstract: An adjustment apparatus for regulating the inclination angle of a spindle motor of an optical disk drive is disclosed. The spindle motor is mounted on a driving circuit board which is mounted in a traverse module. The adjustment apparatus comprises an optic axis regulating tool for containing the traverse module and regulating the inclination angle of the spindle motor. The top surface of the optic axis regulating tool has an opening to expose the spindle motor and a guide rail of the traverse module. A standard plate is placed against on the guide rail, wherein the upper surface of the standard plate is in parallel with the guide rail. A comparable turning wheel is placed to cover the spindle motor, wherein the upper surface of the comparable turning wheel is in parallel with the rotation plane of the spindle motor and a plurality of turbine-like blades are set at the edge of the comparable turning wheel.

Abstract: Of an integrated type leaf spring, a first abutting portion of first leaf spring portion of a narrow spring piece abuts against the bottom surface of a disk motor base to apply reactive force of the first leaf spring portion to the disk motor base. At the same time, a second abutting portion of a second leaf spring portion abuts against the top surface of a mechanical chassis base to apply reactive force of the second leaf spring portion to the mechanical chassis base. Reactive force of the narrow spring piece becomes the sum of the reactive force of the first leaf spring portion and the reactive force of the second leaf spring portion.

Abstract: A compact inexpensive optical disk drive adaptable to high-density optical disks is provided by improving a loading mechanism for an optical disk. A mechanism for loading an optical disk, in or from which information is optically recorded or reproduced, into the body of an optical disk drive is mounted on a chassis. The loading mechanism consists of a spindle motor, a lift plate, and a sheet loader. The spindle motor rotates an optical disk. The spindle motor is placed on the lift plate. The sheet loader moves the lift plate vertically to the chassis so as to attach or detach the spindle motor to or from the optical disk. In the storage device, the tilt of the lift plate relative to the chassis is adjusted at three points on the lift plate. Blade springs for constraining the lift plate to move towards the optical disk are interposed between the chassis and lift plate.

Abstract: A device for rotating inside of a disk player and/or recorder a disk shaped data carrier which takes into account that the rotating disk may be eccentered from an imposed rotation axis. A side moving apparatus allows the rotating disk and a fixing device to which the disk is removably fixed, to move inside the player and/or recorder in a rotation plane substantially perpendicular to an axis of rotation of the fixing device. The rotating disk and the fixing device go into a gyroscopic movement inside the player. A plurality of examples to realize the invention are described.

Abstract: The receiving surface of a bearing 20 is divided into four segments including a first divided receiving surface which is the end surface of a gate 25, a second divided receiving surface, a third divided receiving surface and a fourth divided receiving surface. An extraction stopping protrusion 63 is projected upward on the outer face of the supporting shaft of the driving arm. In a state where the supporting shaft 6 is attached to the bearing 20, the extraction stopping protrusion 63 is located within the space between a pair of legs 26 of a gate 25.

Abstract: A disk drive apparatus includes a turntable having a boss at its one side surface and a rotation center hole, and a rotary shaft inserted and fixed in the hole, an inner circumferential surface of the hole being configured to have a fitting portion near to another side surface of the turntable, a cylindrical clearance near to the one side surface opening in an end of the boss, and a large diametrical portion expanded outward in a radial direction of the hole from the clearance and opening in the end and/or an outer circumferential surface of the boss, the shaft inserted in the hole being fixed to the fitting portion by press fitting and to the clearance and large diametrical portion by adhesive filled in the clearance and large diametrical portion.

Abstract: An optical writing and reading apparatus is disclosed. The apparatus has a deck base having an opening at its center, on which an optical pickup including an object-glass is mounted to be moved along both sides of the opening, and which is formed adjacent to the opening with a center hole elongated in a direction perpendicular to a moving direction of the optical pickup, and is formed around the center hole with a plurality of fastening holes into which screws are screwed, and a spindle motor having a turntable at its shaft and having an integral bracket at its bottom surface, the bracket being formed at its center with a center reference hole and formed around the center reference hole with assembling holes elongated in a direction perpendicular to a moving direction of the optical pickup, the assembling holes being arranged at positions corresponding to the fastening holes of the deck base.