Abstract: A slot-in type optical disk drive is disclosed. An inclined flange is protruded on the lower end of a guide pin. When ejecting a disc, a power unit moves a slider backward to push a shifting lever at one end of a detecting rod. The detecting rod is rotated to move the guide pin at the other end such that the inclined flange pushes the back edge of the disc to ascend along the inclined flange to avoid jamming.

Abstract: A disk drive apparatus is provided. The disk drive apparatus includes: a frame which includes a slot to insert a disk therethrough; a spindle motor assembly which includes a turntable including a disk seating part and a chucking member, and a spindle motor to rotate the turntable; a traverse assembly which mounts the spindle motor thereon and is movable in a direction perpendicular to an inserting direction of the disk; a conveyance roller which is movable between a contact position and a non-contact position with the disk and conveys the disk using a friction force; and a roller driving unit which moves the conveyance roller from the non-contact position to the contact position after an unchucking operation of the disk is completed, when the disk is unloaded.

Abstract: An optical disc device comprising a tray (1) for carrying an optical disc, which tray (1) can move between a position inside the device and a position partly outside the device. The device also comprises a structure (13) for holding and driving the optical disc, which structure (13) is provided with a turntable (6) and an optical pickup unit (8) and guiding means for moving the optical pickup unit (8). The structure (13) can tilt around a horizontal tilt axis (14) behind the rotating optical disc. The tray (1) is provided with a catch member (9) and the optical pickup unit (8) is provided with a cooperating catch surface (20), whereby the catch member (9) may hit the catch surface (20) when the tray (1) moves, thereby displacing the optical pickup unit (8) into a save position.

Abstract: A disk drive according to the present invention includes: a mechanical chassis; a pickup for reading and/or writing information from/on a disk storage medium; a rotation drive section with a turntable to mount and rotate the storage medium thereon; a pickup supporting member having a bottom portion for supporting the pickup and the rotation drive section and a standup wall that stands upright from the bottom portion toward the turntable, the pickup supporting member being supported on the mechanical chassis so as to turn around an axis of rotation that is defined through the standup wall; and a pickup raising/lowering portion, which is provided for the mechanical chassis in order to drive the pickup supporting member to either a first position in which the pickup is ready to perform a read or write operation on the storage medium that is mounted on the turntable or a second position in which the turntable has been retracted so as to avoid contact with the storage medium being inserted or ejected.

Abstract: An optical disc device includes a first optomechanical mechanism, a second optomechanical mechanism, and a positioning mechanism. The first optomechanical mechanism is located under an optical disc insertable into the optical disc drive to optically access a bottom surface of the optical disc. The second optomechanical mechanism is located over the optical disc insertable into the optical disc drive to optically access a top surface of the optical disc. The positioning mechanism is to precisely locate the second optomechanical mechanism over the optical disc for optically accessing the top surface of the optical disc and to prevent the second optomechanical mechanism from interfering with movement of the optical disc during insertion and removal of the optical disc into and from the optical disc drive.

Abstract: A traverse chassis supported in a swingable manner with respect to the main chassis and a disk transport plate provided along an opening are provided in the main chassis. The transport plate has a base part having a slender rectangular shape in plan view and a transport roller provided in the surface of the base part so as to extend in the longitudinal direction of the base part. The transport roller is provided such that its rotationally-moving shaft extends in parallel to an X direction, and an optical disk mounted on these components is loaded into or unloaded from an optical disk apparatus by rotation of the transport roller.

Abstract: A housing assembly includes a base body. The base body includes a plate having a mounting side, and a cover member. An opening is defined in the plate, the opening has a first end portion adjacent to the mounting side and an opposite second end portion communicating with the first end portion. The cover member is inserted into and partially shields the opening, the first end portion and a side of the cover member at the first end portion cooperatively define a fixing hole for allowing a hinge module to extend therethrough.

Abstract: To provide a disk drive capable of being prevented from rattling due to vibrations by a motor or eccentricity of a disk, support arms formed at both sides of a U-shaped traverse holder of a traverse unit have ribs protruding therefrom. Shaft portions protrude outward from front ends of the arms while bearing portions are provided on sidewalls of a chassis. The bearing portion has an axial hole formed in the side wall and a flexibly deformable, resilient arm extending forward spaced from the sidewall by a given distance, the axial hole having a front portion and a rear portion, the front portion being smaller in height than the rear portion, and the height of the front portion of the axial hole being slightly larger than outside diameter of the shaft portions. The shaft portions are fitted in the axial holes. The ribs are squeezed within the resilient arms.

Abstract: A chucking device for a disk including a turntable on which an optical disk is seated, a housing provided on the turntable in such a manner as to be inserted into a center hole of the optical disk, a chuck pin having an end protruding outwards from the housing so that, when the optical disk is inserted into and released from the chuck pin, the chuck pin reciprocates from the center of the optical disk, a spring elastically forcing the end of the chuck pin outwards from the center of the optical disk, and a spring holder provided slantwise on the chuck pin such that the spring is held thereon so that an elastic force of the spring is applied inclined onto the chuck pin acting towards the direction of the turntable.

Abstract: A detection hole 34 is provided in a tray 30, on which a cartridge type recording medium is mounted and housed, at a position corresponding to an information hole of a cartridge, a detection lever 35 is provided on a back surface of the tray 30 on the lower surface side of the detection hole 34, and a switch section 111 is provided on a frame 10 on the lower surface side of the detection lever 35 while the tray 30 is housed within the frame 10. Accordingly, the switch section 111 can be separated from the motion of a base since the switch section 111 is fixed to the frame 10, and consequently, the structure can be simplified and the space efficiency can be enhanced.

Abstract: A disc apparatus includes a chassis, a drive unit driven by a motor to be moved upward/downward in a prescribed direction, and a pick-up unit having a pick-up and driven by the motor to be moved in a direction orthogonal to the direction of upward/downward movement of the drive unit. The pick-up unit has an interlocking piece, and the chassis has an interlocking portion that can be interlocked with interlocking piece. In the disc apparatus, the interlocking piece provided in the pick-up unit is interlocked with the interlocking portion provided in the chassis when the drive unit is in a lowered state, whereby the pick-up unit is locked into the chassis. Therefore, reduction in the number of components and in the size of the apparatus becomes possible, and the lock mechanism of the pick-up unit can be formed in a simple structure.

Abstract: A disk clamping device includes clamp pawls 3, which project from or retract into through holes 22 formed in a turntable 2 to be rotated and driven by a disk rotating-and-driving motor 1; a rotating-and-elevating member 3, disposed rotatably and in an ascendable and descendable manner in synchronism with the turntable 2, when going up, causing the clamping pawls 3 to project from the through holes 22, and when going down, causing the clamping pawls 3 to retract into the through holes 22; and clamp releasing levers 6, 7 pushing down the rotating-and-elevating member 3 against a pushing-up and urging force, wherein the turntable 2 has pawl-receiving part protrusions 24 forming clamp pawl receiving parts, which are protruded on the underside of the turntable and communicate with the through holes 22; and the rotating-and-elevating member 4 has protrusion receiving holes 42 formed thereon into which the pawl-receiving part protrusions 24 are fitted at the time of upward movement of the rotating-and-elevating memb

Abstract: A disk device includes a traverse chassis (20) that supports a turn table (30) or the like, and a main chassis (10) that rotatably supports the traverse chassis (10). The traverse chassis (20) has two coaxial bosses (21a, 21b). The main chassis (10) has two boss supporting portions (1a, 1b) that support the bosses (21a, 21b) of the traverse chassis (20). Protrusions (22a, 22b) are formed on the tips of the bosses (21a, 21b). The protrusions (22a, 22b) abut against the boss supporting portions (1a, 1b), so as to prevent the deformation of the boss supporting portions (1a, 1b) in the directions away from each other, with the result that the dropping of the traverse chassis (20) from the main chassis (10) is prevented.

Abstract: A disk player has a tray capable of moving in and out of a player body. A driving unit moves the tray. A lift unit selectively engages or disengages the driving unit and raises a turntable receiving a disk loaded by the tray thereon. A spindle motor rotates the turntable. A damping unit reduces loads and impacts during movement of the lift unit.

Abstract: A primary printed circuit board (PPCB) is put on a plurality of leg rods integrally protruding from a bottom plate portion, a central insertion hole, which is one of the three insertion holes formed in the three corners of the PPCB, is engaged with an engaging pin integrally protruding from an upper surface of one of the leg rods, a screw is screwed into a screw hole of one of the leg rods through one of the insertion holes opposed to each other along a diagonal line, a holding rod is integrally protruded from a roof plate portion being opposed to one of the insertion holes opposed to each other along the diagonal line, a holding pin protruded from a lower surface of the holding rod is engaged with an engaging hole of one of the leg rods through one of the insertion holes, and a small gap is formed between a lower surface of the holding rod and the PPCB.

Abstract: An optical disk player with improved opening and closing of a door, transport of a tray, and an improved pivoting structure of a chassis to pivot a turntable. The optical disk player includes: a body; a tray to move in and out of the body so as to transport an optical disk; a chassis installed to pivot inside the body; an optical pickup, which is installed to be able to move back and forth in the chassis, to record/reproduce information onto/from the optical disk that is rotatably placed on the turntable; a cover installed on a front of the body, the cover including: a door holder with an aperture through which the tray moves; a door to be able to slide along the door holder so as to open and close the aperture; and a cam driving device to activate the tray, to pivot the chassis, and to open and close the door by sliding.

Abstract: The present invention relates generally to a turntable assembly for optical disks and, more particularly, to a height-variable type turntable assembly, which can adjust the height of a turntable to adjust the working distance between an object lens and an optical disk according to the type of optical disk placed on the turntable, and an optical disk device including the same. The height-variable type turntable assembly includes a turntable, a spindle motor for rotating the turntable, and a height adjustment device for supporting the spindle motor and driving the spindle motor in a vertical direction. Through such a structure, the working distance between the optical disk and the optical pick-up can be adjusted to correspond to at least three types of optical disks (e.g., CD, DVD and BD) while the DC sensitivity and tilt characteristics of the actuator of the optical pick-up is not considerably affected.

Abstract: A disk apparatus, in which, when a tray is forcibly pushed into a case in the rearward direction with a driving chassis stopped in a downwardly moved state by turning off a power source, the tray returns to the interior of the case. In the disk apparatus, projections of a synthetic resin are extended downward from the portions of a lower surface of the top plate of the case which are close to a rear portion of the tray stored in the case. The lower ends of the projections are positioned lower than an upper surface of the tray.

Abstract: A disk drive device is arranged so as to swing a traversing mechanism which has an optical pickup and a spindle motor mounted thereon. In a shift mechanism of the optical pickup, its outer end in the radial direction of the optical disk is provided to extend beyond a periphery of the optical disk, and in loading, the optical pickup is caused to withdraw to the outer end which is provided to extend. Therefore, as to the optical pickup which is thicker than the spindle motor and determines the thickness of the whole device, the amount of swing of the pickup is decreased while reliably avoiding the contact between the pickup and the optical disk, thus realizing the reduction in thickness of the device. As a result, it is possible to realize front loading of the optical disk at low cost.

Abstract: In an optical disc apparatus, a harsh blow sound due to collision of first stoppers of a tray and third stoppers of a main chassis when the tray reaches to a terminal position of drawing thereof is reduced. When a second stopper of the tray contacts with the front end portion of a cam slider, the front end portion of the cam slider is elastically deformed so that moving speed of the tray is largely decelerated. Consequently, the blow sound due to contact of the first stoppers of the tray and the third stoppers of the main chassis is radically reduced.

Abstract: An apparatus for reading an optical disc. The apparatus includes a housing and a spindle positioned to rotatably support the optical disc adjacent to the exterior of the housing. A light emitting scan head is aligned to read the optical disc as it rotates. A protective member, having a silhouette that is smaller than the area of the optical disc, is movably coupled to the housing between a first position that aligns the protective member to prevent extraneous emission of light from the scan head, and a second position that enables access to mount the optical disc on the spindle. The apparatus may be an audio CD player. The rotating optical disc may be positioned to extend beyond the surface of the housing. A spring disposed between the housing and the protective member, where the spring operates to close the protective member.

Abstract: A disk apparatus includes a chassis fixed to an apparatus body, a drive unit being ascendable or descendable with respect to the chassis through a plurality of gears by driving a motor, a pickup unit provided with an optical pickup that is movable by driving the motor, a cam slider arranged on the chassis and being movable in a direction, and a plate trigger provided with an inclined cam groove and being movable in the direction through cam engagement with the pickup unit and causes the drive unit to ascend or descend through cam engagement with the cam slider. The plate trigger and the cam slider move integrally in mesh with the gears coupled with the motor respectively. The tip of the tooth of the gear to be in mesh with a triangular tooth formed in the plate trigger is made sharp.

Abstract: When a disk (1) is placed at a playback position, a clamp arm (15) clamps the disk (1). The clamp arm (15) has an engagement hook (16) for engaging with an engagement groove (12) of a fixed base (11) when the clamp arm (15) pivots on a slide base (13) so as to return to a standby position for waiting for a pivot while the slide base (13) slides.

Abstract: A disc drive includes a main body, a disc tray movable with respect to the main body between a loading position for loading an optical disc and an eject position, and a chassis on which a rotational drive mechanism for rotating a loaded optical disc is provided. The chassis is pivotally provided with respect to the main body about a pivotal axis near the rear end of the chassis so that the front end thereof can be displaced between a lowered position when the disc tray is ejected and a raised position for placing the optical disc on the rotational drive mechanism when rotating the optical disc. The disc drive prevents the chassis and/or the optical disc rotational drive mechanism from interfering or colliding with other elements of the disc drive.

Abstract: By a disk device including: a reproducing base which is supported pivotally and enably to swing on a base, and on which a turntable is set; a supporting member which is supported pivotally and enably to swing on the base and which supports the reproducing base in a predetermined position; a clamper which is supported pivotally and enably to swing on the base and which opposes to the turntable to pinch and hold a disk; and a movement regulating member which regulates swing movements of the supporting member and the clamper, supporting by the supporting member in relation to the reproducing base is made sure to prevent deformation of the reproducing base by a clamping force of the clamper.

Abstract: A disc driving apparatus comprises a turntable, a clamping member and a cam mechanism. A disc is to be placed on the turntable. The clamping member holds the disc between the turntable and the clamping member with a magnetic attracting force. The cam mechanism causes a relative movement between the turntable and the clamping member to move any one of them away from another thereof or move them closer to each other. The cam mechanism has a cam and a cam follower. The cam has a contour by which a variation rate of displacement of the cam follower relative to a moving amount of the cam when the turntable and the clamping member move away form each other becomes smaller than a variation rate thereof when the turntable and the clamping member move close to each other.

Abstract: A disk device for playing back information recorded on an optical disk, includes a device body; a disk tray, moving in the device body between a charging position, into which the optical disk is charged, and a discharging position from which the optical disk is discharged; a chassis, provided in the device body; a turntable, moving between an ascending position and a descending position when the chassis is displaced, and the turntable on which the optical disk is set; and a disk clamper, pivotally arranged on an upper plate of the device body, and clamping the optical disk against the turntable when the turntable is moved to the ascending position. The disk clamper is arranged on the upper plate with a clearance therebetween so that the disk clamper is moved in all radial directions, and an amount of the clearance in a first direction, in which the disk tray moves from the discharging position to the charging position, is smaller than amounts of the clearance in the other directions.

Abstract: A disk apparatus includes a tray that moves with respect to a chassis fixed to an apparatus body to carry a disk, a drive unit that moves in a direction substantially orthogonal to the carrying direction of the tray with respect to the chassis to mount or dismount the disk placed on the tray, a pickup unit provided on the drive unit and having an optical pickup for recording or reproducing the disk, the pickup unit being movable in a radial direction of the disk, and a motor which is arranged on the drive unit and drives the drive unit, pickup unit and tray through a plurality of gears. A worm gear is attached to a motor shaft of the motor. Lead angle of the worm gear is set at 15°-30°.

Abstract: A disk apparatus includes a chassis fixed to an apparatus body, a drive unit being ascendable or descendable with respect to the chassis through a plurality of gears by driving a motor, a pickup unit provided with an optical pickup that is movable by driving the motor, a cam slider arranged on the chassis and being movable in a direction, and a plate trigger provided with an inclined cam groove and being movable in the direction through cam engagement with the pickup unit and causes the drive unit to ascend or descend through cam engagement with the cam slider. The plate trigger and the cam slider move integrally in mesh with the gears coupled with the motor respectively. The tip of the tooth of the gear to be in mesh with a triangular tooth formed in the plate trigger is made sharp.