JP4329663B2 - Disk drive device - Google Patents

Description

  The present invention relates to a disk drive device that records and / or reproduces information signals with respect to an optical disk, and more particularly to a slot-in type disk drive device.

  Conventionally, optical disks such as CD (Compact Disk) and DVD (Digital Versatile Disk) and magneto-optical disks such as MO (Magneto optical) and MD (Mini Disk) have been widely known as optical disks. Various disk drive devices corresponding to the above have appeared.

  In the disk drive device, the lid or door provided on the housing is opened, and the disc is mounted directly on the turntable facing from the door. There are a type in which a disc is automatically mounted on an internal turntable when the disc tray is pulled in, a type in which a disc is directly mounted on a turntable provided in the disc tray, and the like. However, both types require operations such as opening and closing the lid and door, inserting and removing the disc tray, and loading the disc on the turntable.

  On the other hand, there is a so-called slot-in type disk drive device in which a disk is automatically mounted on a turntable simply by inserting a disk from a disk insertion / removal opening provided on the front surface of a housing. In this disk drive device, when a disk is inserted through the disk insertion / removal opening, the pair of guide rollers are rotated in opposite directions while the disk is sandwiched between the pair of guide rollers facing each other, thereby the disk insertion / removal opening A loading operation for drawing the disk inserted from the inside into the housing and an ejection operation for ejecting the disk from the disk insertion / removal port to the outside of the housing are performed.

  By the way, for mobile devices such as notebook personal computers on which a disk drive device is mounted, there is a demand for further reduction in size, weight, and thickness, and the accompanying demand for reduction in size, weight, and thickness of the disk drive device is also increasing. In recent years, there has been an increasing demand for slot-in type disk drive devices with a better operational feeling than tray type disk drive devices that have been mainstream in personal computers and the like.

  However, in the slot-in type disk drive apparatus, since the length of the pair of guide rollers described above is longer than the diameter of the disk, the dimension in the width direction of the entire apparatus becomes longer. Further, since the disk is sandwiched between the pair of guide rollers, the dimension in the thickness direction is also increased. For this reason, the conventional slot-in type disk drive apparatus is very disadvantageous for miniaturization and thinning.

  In particular, an ultra-thin disk drive device mounted on a notebook personal computer or the like has a standard thickness of 12.7 mm, and further up to 9.5 mm, which is the same thickness as a hard disk drive (HDD) unit. When the thickness is reduced, it is very difficult to divert such a guide roller as it is.

  Therefore, in the slot-in type disk drive device, in order to meet the demand for miniaturization and thinning, a plurality of disks are inserted between the disk inserted from the disk insertion / removal port and the base to which the turntable to which the disk is mounted is attached. Loading operation that pulls the disk from the disk insertion / removal opening to the inside of the housing while rotating the rotation arm in a plane parallel to the disk using a biasing member such as a coil spring. In addition, a disk drive device has been proposed that performs an ejection operation of ejecting a disk from the disk insertion / removal port to the outside of the housing (see, for example, Patent Document 1).

  In this type of disk drive device, for example, when a standard disk having a diameter of 12 cm is discharged, it is required that the center hole of the disk is discharged outward from the disk insertion / removal port, and the disk itself does not fall out of the disk insertion / removal port. .

  Further, when various layers are bonded together in the manufacturing process of the disk, a thickness error occurs due to the accuracy of the layer, and a disk having a thickness thinner than a conventional thickness of 1.2 mm or a thick bonded disk may be used. Further, when a recording disk having a thickness of 1.5 mm is provided by bonding a DVD having a recording layer thickness of 0.6 mm and a CD having a recording layer thickness of 0.9 mm, the conventional thickness In addition to a 1.2 mm disk, a disk drive device for recording and / or reproducing such a 1.5 mm thick recording disk is desired. Even in such a disk drive device, it is necessary to discharge the disk with an optimal discharge amount for each disk regardless of the difference in the thickness of the corresponding disk.

  However, since this disk drive device ejects the disk using only the spring force of a biasing member such as a coil spring that pivots and biases the pivot arm, the biasing member of each type of optical disk can be adjusted according to the thickness and weight. The spring force cannot be controlled, and the discharge amount becomes unstable due to the difference in frictional force due to the difference in the weight of each disk, making it difficult to obtain the optimum discharge amount for each disk.

JP 2002-117604 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide a disk drive apparatus that can discharge a disk with an optimal discharge amount in a disk drive apparatus that supports a plurality of types of optical disks having different thicknesses and weights.

In order to solve the above-described problem, a disk drive device according to the present invention includes a housing having a front panel provided with a substantially rectangular disk insertion / extraction opening, a plurality of rotating arms that sandwich the outer periphery of the optical disk, A biasing means for biasing the plurality of rotating arms in a predetermined direction in accordance with a transport position of the optical disk, a disk insertion / removal position at which the optical disk is inserted / removed from a disk insertion / removal opening of the front panel; A disk transport mechanism for transporting the optical disk between a disk mounting position where an optical disk inserted into the housing is mounted, a disk mounting portion for mounting the optical disk transported into the housing, and the disk mounting A disk rotation driving mechanism for rotating the optical disk mounted on the optical disk, and information transmission to the optical disk rotated by the disk rotation driving mechanism. An optical pickup for recording and / or reproducing the optical pickup, and a pickup feeding mechanism for feeding the optical pickup in the radial direction of the optical disc, and at least one end portion in the longitudinal direction of the disc insertion / removal port from the disc insertion / removal port. Provided with a sliding contact piece made of woven fabric, cloth, fiber or leather softer than the optical disc that regulates the discharge amount of the optical disc by applying a load by sliding on the outer peripheral surface of the optical disc to be inserted and removed It is.

  According to such a disk drive device, since the sliding contact piece slides on the optical disk and applies a load when the optical disk is ejected from the disk insertion / removal opening, the center hole of the optical disk is exposed to the outside from the disk insertion / removal opening. The optical disk can be ejected when As a result, the user can easily pull out the optical disk by grasping the inner periphery of the center hole of the optical disk and the outer periphery of the optical disk that are exposed to the outside through the disk insertion / removal port.

  Also, when the disk transport mechanism rotates the rotating arm by the biasing means, when the various types of optical disks with different thicknesses and weights are ejected from the housing, the sliding contact piece ejects the optical disk from the disk insertion / removal opening. By making sliding contact from a direction perpendicular to the ejection direction when the optical disc is ejected, variations in the ejection force according to the type of the optical disc can be eliminated, and the optical disc can be stopped at the optimum ejection position for each optical disc.

  Hereinafter, a disk drive device to which the present invention is applied will be described in detail with reference to the drawings. A disk drive device to which the present invention is applied is, for example, a slot-in type disk drive device 1 mounted on a device main body 1001 of a notebook personal computer 1000 as shown in FIG. As shown in FIG. 2, the disk drive apparatus 1 has a structure in which the entire apparatus is thinned to about 12.7 mm, for example, and an optical disk 2 such as a CD (Compact Disk) or a DVD (Digital Versatile Disk). It is possible to record and reproduce information signals.

  As shown in FIG. 2, the disk drive apparatus 1 includes a casing 3 that is an outer casing of the apparatus main body. The casing 3 includes a bottom case 4 that is a substantially flat box that is a lower casing, and a bottom case 4. The top cover 5 is a top plate that covers the upper opening of the case 4.

  As shown in FIGS. 2 and 3, the top cover 5 is made of thin sheet metal, and a top plate portion 5 a that closes the upper opening of the bottom case 4, and the periphery of the top plate portion 5 a is on both side surfaces of the bottom case 4. And a pair of side plate portions 5b that are slightly bent along. A substantially circular opening 6 is formed at a substantially central portion of the top plate portion 5a. The opening 6 is provided so that the engaging protrusion 48a of the turntable 47 that is engaged with the center hole 2a of the optical disc 2 is exposed to the outside during a chucking operation described later. In addition, the contact projection 7 that performs chucking by contacting the periphery of the opening 6 of the top plate 5 a with the periphery of the center hole 2 a of the optical disk 2 placed on the turntable 47 is provided in the housing 3. It is formed to protrude slightly toward the inside.

  On the inner main surface of the top plate portion 5a, a distal end portion of a first rotating arm 61 and a distal end portion of a second rotating arm 62, which will be described later, are contiguous or separated from each other while being regulated in the height direction. A guide member 8 for guiding in the direction is provided. The guide member 8 is made of a sheet metal having a substantially arc shape between both side plate portions 5b of the top plate portion 5a, and is attached to the front side of the top plate 5a by spot welding or the like. Further, the guide member 8 has a stepped portion 8a whose back side is made one step higher than the mounting surface on the front side. Thereby, between the step part 8a on the back side of the guide member 8 and the top plate part 5a, the tip part of the first turning arm 61 and the tip part of the second turning arm 62 are engaged. Guide grooves 9 are formed. The top plate portion 5a has working window portions 10 for engaging the leading end portion of the first rotating arm 61 and the leading end portion of the second rotating arm 62 with the guide groove 9 respectively. Is provided.

  As shown in FIG. 4, the bottom case 4 is made of a sheet metal formed in a substantially flat box shape, and its bottom surface portion has a substantially rectangular shape, and one side surface portion is raised above the bottom surface portion. A deck portion 4a projecting outward is provided. Although not shown, the bottom case 4 has an electronic component such as an IC chip that constitutes a drive control circuit, a connector for electrical connection of each part, and an operation of each part. The circuit board on which the detection switch and the like are arranged is attached by screwing or the like. A chassis 11 is attached to the bottom surface of the bottom case 4 by screws. The chassis 11 is disposed above the circuit board so as to partition the inside of the bottom case 4 vertically at a height substantially equal to the deck portion 4a.

  As shown in FIG. 2, the top cover 5 is attached to the bottom case 4 by screws. Specifically, as shown in FIG. 3, a plurality of through holes 13 through which the screws 12 pass are formed in the outer peripheral edge portion of the top plate portion 5 a. Further, the side plate portions 5b on both sides are provided with a plurality of guide pieces 14 bent inward at substantially right angles. On the other hand, as shown in FIG. 4, a plurality of fixed pieces 15 bent at substantially right angles are provided on the outer peripheral edge of the bottom case 4, and these fixed pieces 15 penetrate the top cover 5. A screw hole 16 corresponding to the hole 13 is formed. In addition, a plurality of guide slits 17 that prevent the plurality of guide pieces 14 of the top cover 5 from coming off are formed on both side surfaces of the bottom case 4.

  When attaching the top cover 5 to the bottom case 4, the top cover 5 is moved from the front side to the back side with the plurality of guide slits 17 of the bottom case 4 engaged with the plurality of guide pieces 14 of the top cover 5. Slide to the side. Thereby, the top plate part 5 a of the top cover 5 is in a state of closing the upper opening of the bottom case 4. In this state, the screw 12 is screwed into the screw hole 16 of the bottom case 4 through the plurality of through holes 13 of the top cover 5. The housing 3 shown in FIG. 2 is configured as described above.

  Note that a label seal (not shown) that covers the opening 6 and the work window 10 described above is attached to the top plate 5a of the top cover 5 after assembly. This prevents dust and the like from entering the inside of the housing 3.

  A front panel 18 having a substantially rectangular flat plate shape is attached to the front surface of the housing 3 as shown in FIG. The front panel 18 is provided with a disk insertion / removal opening 19 through which the optical disk 2 is inserted and removed in the surface direction of the disk. That is, the optical disk 2 can be inserted into the housing 3 from the disk insertion / removal opening 19 or discharged from the disk insertion / removal opening 19 to the outside of the housing 3. As shown in FIG. 5, a display unit 20 that lights and displays an access state to the optical disc 2 and an eject button 21 that is pressed when the optical disc 2 is ejected are provided on the front surface of the front panel 18.

  The disk insertion / removal port 19 has a shape in which the dimension in the thickness direction of the central part is the largest and slightly decreases in the thickness direction toward both ends in order to guide the optical disk 2 to the central part. In addition, inclined surfaces 38 are provided on the upper and lower surfaces of the disk insertion / removal port 19 so as to be inclined toward each other from the front side of the front panel 18 toward the inside of the housing 3. The inclined surface 38 is for guiding the optical disc 2 into the disc insertion / removal opening 19 when the disc is inserted.

  The disc insertion / removal port 19 is formed of a rectangular opening having a length slightly longer than the diameter of the optical disc 2 and a height slightly longer than the thickness of the optical disc 2 along the longitudinal direction of the front panel 18. As shown in FIGS. 5 and 6, the disk insertion / removal port 19 has sliding contact pieces 23 slidably contacted with the outer periphery of the optical disk 2 inserted / removed from the housing 3 at both ends 19 a, 19 b in the longitudinal direction. Is provided. The sliding contact piece 23 is made of, for example, black artificial leather suede (a material in which a polyester fiber is impregnated with polyurethane resin), and is bonded to a storage recess 24 formed on the back side of the front panel 18 as shown in FIG. It is attached via an agent.

  As shown in FIG. 2, when the optical disk 2 is inserted through the disk insertion / removal opening 19 or ejected from the disk insertion / removal opening 19, the sliding contact piece 23 is exposed to the outside of the housing 3 by about half. When in position, it is in sliding contact with the outer peripheral portion 2A in the direction orthogonal to the insertion / removal direction of the optical disc 2. As a result, the sliding contact piece 23 slides relative to the outer peripheral portion 2A of the optical disc 2, so that a load is applied to the insertion force or ejection force of the optical disc 2 to suppress the insertion force or ejection force. it can.

  When the optical disk 2 is inserted into the housing 3, although a load is applied for a moment when the optical disk 2 is inserted into the housing 3, insertion of the optical disk 2 is continued by the user and delivered to a disk transport mechanism 60 described later. Then, it is mounted on the disk mounting portion of the housing 3 by the disk transport mechanism 60. On the other hand, when the optical disc 2 is ejected out of the housing 3, a load is applied to the ejecting force of the optical disc by the disc transport mechanism 60, and the ejection amount of the optical disc 2 is optimized. That is, the sliding contact piece 23 slides on the outer peripheral portion 2A of the optical disc 2 and applies a load when about half of the optical disc 2 is ejected, so that the center hole 2a of the optical disc 2 is exposed to the outside from the disc insertion / removal opening 19. The ejection of the optical disk 2 can be stopped. As a result, the user can grasp the inner periphery of the center hole 2a of the optical disc 2 and the outer periphery of the optical disc 2 that are exposed to the outside through the disc insertion / removal port 19, and can easily remove the optical disc 2.

  Further, as will be described later, when the disk transport mechanism 60 rotates the first and second rotating arms 61 and 62 by the torsion coil spring 70, various optical disks 2 having different thicknesses and weights are discharged out of the housing 3. In this case, the sliding contact piece 23 is slidably contacted with the outer peripheral portion 2A in the direction orthogonal to the discharging direction when the optical disk 2 is discharged from the disk insertion / removal port 19 by about half, thereby discharging according to the type of the optical disk 2. The variation in force can be eliminated, and the optical disk 2 can be stopped at the optimum discharge position.

  The optical disk 2 ejected from the disk insertion / removal opening 19 is held by friction with the sliding contact piece 23 at a position where the center hole 2a is exposed to the outside of the housing 3 from the disk insertion / removal opening 19, so It is possible to prevent dropping from the insertion / removal port 19.

  The sliding contact pieces described above may be provided at both ends in the longitudinal direction of the disk insertion / removal opening, or at any one end in the longitudinal direction of the disk insertion / removal opening.

  A plurality of locking pieces for attaching the front panel 18 to the front surface of the housing 3 are provided on the back side of the front panel 18 shown in FIG.

  Next, the base unit 40 for chucking and rotating the optical disc 2 and recording and / or reproducing information signals will be described.

As shown in FIG. 8 , the base unit 40 is provided on the bottom surface of the bottom case 4, and a disc mounting portion 41 to which the optical disc 2 inserted into the housing 3 from the disc insertion / removal port 19 is mounted, and the disc A disk rotation drive mechanism 42 that rotationally drives the optical disk 2 mounted on the mounting portion 41, an optical pickup 43 that writes and reads signals to and from the optical disk 2 that is rotationally driven by the disk rotation drive mechanism 42, and this light A pickup feeding mechanism 44 that feeds the pickup 43 in the radial direction of the optical disc 2 and has an ultra-thin structure integrally provided with the base 45.

  As shown in FIG. 4, the base unit 40 is disposed on the front side of the chassis 11 so that the disk mounting portion 41 is positioned substantially in the center on the bottom surface of the bottom case 4. The base unit 40 can be moved up and down by a base lifting mechanism 90 described later. The optical disk 2 inserted into the housing 3 from the disk insertion / removal port 19 in an initial state before the optical disk 2 is inserted. It is located below the transfer area. When the optical disk 2 is inserted, the base unit 40 is raised by the base lifting mechanism 90, and the optical pickup 43 is recorded and / or recorded by the optical pickup 43 when the optical disk 2 is mounted on the disk mounting portion 41 and rotated. Perform playback. Next, when the optical disk 2 is ejected, the base unit 40 is lowered by the base lifting mechanism 90 so that the optical disk 2 is detached from the disk mounting portion 41 and can be transported by a disk transport mechanism 60 described later.

  The base 45 is formed by punching a sheet metal into a predetermined shape and bending the periphery slightly downward. On the main surface of the base 45, a substantially semicircular table opening 45 a that faces a turntable 47 of a disk mounting portion 41, which will be described later, and an objective lens 51 of an optical pickup 43, which will be described later, face upward. A substantially rectangular pickup opening 45b is continuously formed. A decorative board (not shown) in which openings corresponding to the openings 45a and 45b are formed is attached to the upper surface of the base 45.

  The disc mounting portion 41 has a turntable 47 that is rotationally driven by a disc rotation drive mechanism 42, and a chucking mechanism 48 for mounting the optical disc 2 is provided at the center of the turntable 47. The chucking mechanism 48 includes an engaging protrusion 48a that engages with the center hole 2a of the optical disc 2, and a plurality of portions that lock the periphery of the center hole 2a of the optical disc 2 that is engaged with the engaging protrusion 48a. The optical disk 2 is held on the turntable 47.

  The disk rotation drive mechanism 42 has a flat spindle motor 49 that rotates the optical disk 2 integrally with the turntable 47, and the spindle motor 49 has a turntable 47 provided on the upper surface portion for the table of the base 45. It is attached to the lower surface of the base 45 with screws so as to protrude slightly from the opening 45a.

  The optical pickup 43 collects the light beam emitted from the semiconductor laser serving as the light source by the objective lens 51 and irradiates the signal recording surface of the optical disc 2, and returns the light beam reflected by the signal recording surface of the optical disc 2. And an optical block that detects light by a light detector composed of a light receiving element or the like, and writes or reads a signal to or from the optical disk 2.

  This optical pickup 43 has an objective lens drive mechanism such as a biaxial actuator that drives the objective lens 51 to move in the optical axis direction (referred to as the focusing direction) and the direction orthogonal to the recording track of the optical disc (referred to as the tracking direction). On the signal recording surface of the optical disc 2 while displacing the objective lens 51 in the focusing direction and the tracking direction by the biaxial actuator based on the detection signal from the optical disc 2 detected by the photodetector described above. Further, drive control is performed such as a focus servo for focusing the objective lens 51 and a tracking servo for causing the spot of the light beam condensed by the objective lens 51 to follow the recording track. As the objective lens driving mechanism, in addition to such focusing control and tracking control, the signal of the optical disc 2 is irradiated so that the light beam condensed by the objective lens 51 is irradiated perpendicularly to the signal recording surface of the optical disc 2. A triaxial actuator that can adjust the inclination (skew) of the objective lens 51 with respect to the recording surface may be used.

  The pickup feeding mechanism 44 includes a pickup base 53 on which the optical pickup 43 is mounted, a pair of guide shafts 54a and 54b that support the pickup base 53 so as to be slidable in the radial direction of the optical disc 2, and the pair of guide shafts 54a and 54a. A displacement driving mechanism 55 is provided for driving the pickup base 53 supported by 54 b in the radial direction of the optical disc 2.

  The pickup base 53 is formed with a pair of guide pieces 56a and 56b formed with a guide hole through which one of the pair of guide shafts 54a and 54b is inserted, and a guide groove for sandwiching the other guide shaft 54b. The guide pieces 57 are formed so as to protrude from the side surfaces facing each other. Accordingly, the pickup base 53 is slidably supported by the pair of guide shafts 54a and 54b.

  The pair of guide shafts 54a and 54b are arranged on the lower surface of the base 45 so as to be parallel to the radial direction of the optical disc 2, and the optical pickup 43 facing the optical pickup 43 through the pickup opening 45b of the base 45 is disposed on the optical disc. 2 is guided over the inner and outer peripheries.

  The displacement drive mechanism 55 converts the rotational drive of the drive motor 58 attached to the base 45 to linear drive via a gear or a rack (not shown), and the pickup base 53 is moved along a pair of guide shafts 54a and 54b. It is driven to move in the radial direction of the optical disk 2, ie, the radial direction of the optical disk 2.

  As shown in FIG. 4, the disk drive device 1 includes a disk insertion / removal position where the optical disk 2 is inserted / removed from the disk insertion / removal port 19 and a disk mounting position where the optical disk 2 is mounted on the turntable 47 of the disk mounting portion 41. And a disk transport mechanism 60 for transporting the optical disk 2 between them. The disc transport mechanism 60 is an optical disc as a support member that is moved between the main surface of the top plate portion 5a facing the disc mounting portion 41 and the main surface of the optical disc 2 inserted from the disc insertion / removal port 19. The first rotary arm 61 and the second rotary arm 62 are configured to be swingable in a plane parallel to the two main surfaces.

  The first rotating arm 61 and the second rotating arm 62 are disposed on both the left and right sides of the disc mounting portion 41, respectively, and are proximal end portions located on the back side of the disc mounting portion 41, respectively. Is supported in a rotatable manner, and the front end portion located on the front side of the disc mounting portion 41 is close to or separated from each other within a plane parallel to the main surface of the optical disc 2 inserted from the disc insertion / removal port 19. It can swing.

  Specifically, the first rotating arm 61 is made of a long sheet metal, and is positioned on one of the left and right sides (for example, the right side in FIG. 4) sandwiching the turntable 47 of the disk mounting portion 41. The end portion is supported via a first support shaft 64 provided on the chassis 11 so as to be rotatable in the directions of arrows a1 and a2 in FIG. A first front-side abutting member 65 that abuts on the outer periphery of the optical disc 2 inserted from the disc insertion / removal port 19 protrudes downward from the tip of the first rotating arm 61. It has been. Further, in the vicinity of the base end portion of the first rotating arm 61, when the optical disc 2 is positioned at the disc mounting position, the first front-side abutting member 65 and the outer peripheral portion of the optical disc 2 are in contact with each other. One rear-side contact member 66 is provided protruding downward.

  The first front-side contact member 65 and the first back-side contact member 66 are made of a softer resin than the optical disc 2 and are a central portion that comes into contact with the outer peripheral portion of the optical disc 2 inserted from the disc insertion / removal port 19. Are curved inward, and have flange portions 65a and 66a whose both end portions are enlarged in diameter so as to restrict the movement of the optical disc 2 in the height direction. The first front-side contact member 65 and the first back-side contact member 66 have a small diameter that is rotatably attached to the main surface of the first rotating arm 61 facing the disc mounting portion 41. It may be a rotating roller.

  On the other hand, the second rotating arm 62 is made of a long sheet metal, and is located on the other left and right sides (for example, the left side in FIG. 4) sandwiching the turntable 47 of the disk mounting portion 41, and has a base end portion. Is supported through the first support shaft 64 provided on the chassis 11 so as to be rotatable in the directions of the arrows b1 and b2 in FIG. Further, a second front side abutting member 68 that abuts on the outer peripheral portion of the optical disc 2 inserted from the disc insertion / removal opening 19 protrudes downward from the tip of the second rotating arm 62. It has been.

  The second front-side contact member 68 is made of a softer resin than the optical disc 2, and a central portion that comes into contact with the outer peripheral portion of the optical disc 2 inserted from the disc insertion / removal opening 19 is curved inward, and both end portions thereof are The flange portion 68a having an enlarged diameter has a substantially hourglass shape that restricts the movement of the optical disc 2 in the height direction. The second front contact member 68 may be a small-diameter rotating roller that is rotatably attached to the main surface of the second rotating arm 62 that faces the disc mounting portion 41.

  Further, a torsion coil spring 70 is provided at the base end portion of the first rotating arm 61 and the second rotating arm 62, which is an urging means for urging the rotating arms 61 and 62 in a direction approaching each other. It has been. The torsion coil spring 70 has one end locked to the base end of the first rotating arm 61 and the other end fixed to the second turn, with the first support shaft 64 inserted through the winding portion. By being locked to the base end portion of the moving arm 62, the first and second rotating arms 61 and 62 are urged in a direction approaching each other. In addition, the torsion coil spring 70 rotates the first and second rotating arms 61 and 62 to pull in the plurality of types of optical disks 2 having different thicknesses and weights into the casing 3, and to the outside of the casing 3. It has sufficient urging force to be discharged.

  As described above, the first rotation arm 61 and the second rotation arm 62 are arranged at positions that are substantially symmetrical with the turntable 47 of the disk mounting portion 41 in between, and the rotation center of each other is the same. They coincide with each other at a substantially central portion on the back side of the disc mounting portion 47. Moreover, the front-end | tip part of the 1st rotation arm 61 and the front-end | tip part of the 2nd rotation arm 62 can be slid along a rotation direction in the state engaged with the guide groove 9 of the top-plate part 5a mentioned above. It is supported by.

  The disc transport mechanism 60 has an interlocking mechanism 71 for interlocking the first rotating arm 61 and the second rotating arm 62, and the first rotating arm is connected via the interlocking mechanism 71. 61 and the second turning arm 62 can turn in opposite directions. Specifically, the interlocking mechanism 71 includes a first connecting arm 72 and a second connecting arm 73 that connect the first rotating arm 61 and the second rotating arm 62. The first connecting arm 72 and the second connecting arm 73 are made of a long sheet metal, and one end in the longitudinal direction of each of the first connecting arm 72 and the second connecting arm 73 is the base end of the first rotating arm 61 and the second rotating arm. 62 has a so-called pantograph structure in which the other end in the longitudinal direction is rotatably supported via a second support shaft 74. The second support shaft 74 is engaged with a guide slit 75 provided on the front side of the first support shaft 64 of the chassis 11, and the guide slit 75 extends in the insertion direction of the optical disc 2. It is formed in a straight line.

  Accordingly, the first rotating arm 61 and the second rotating arm 62 are configured such that the first connecting arm 72 and the second connecting arm 73 are configured such that the second support shaft 74 slides in the guide slit 75. It is possible to rotate in opposite directions via each other. That is, the distal end portion of the first rotating arm 61 and the distal end portion of the second rotating arm 62 can be swung in the direction of approaching or separating from each other by such an interlocking mechanism 71.

  Further, the disk transport mechanism 60 serves as a loading assisting means for assisting a loading operation for drawing the optical disk 2 from the disk insertion / removal opening 19 into the housing 3, and the main surface of the optical disk 2 inserted from the disk insertion / removal opening 19. A third rotating arm 76 that can swing within a parallel plane is provided. The third rotating arm 76 is made of a long sheet metal, and is located on the front side of the second rotating arm 62 on one of the left and right sides (for example, the left side in FIG. 4) sandwiching the turntable 47 of the disk mounting portion 41. Located on the side, the base end portion is supported via a support shaft 77 provided on the deck portion 4a so as to be rotatable in the arrow c1 direction and the arrow c2 direction. Further, a third abutting member 78 that abuts on the outer peripheral portion of the optical disc 2 inserted from the disc insertion / removal port 19 protrudes upward from the tip of the third rotating arm 76. Yes.

  The third abutting member 78 is a small-diameter rotating roller that is rotatably attached to the main surface of the third rotating arm 76 that faces the top plate portion 5a, and is made of a softer resin than the optical disc 2. Further, the third contact member 78 is a flange portion 78a in which a central portion that is in contact with the outer peripheral portion of the optical disc 2 inserted from the disc insertion / removal opening 19 is curved inward, and both end portions thereof are enlarged in diameter. The optical disk 2 has a substantially hourglass shape that restricts the movement of the optical disk 2 in the height direction.

  The third rotating arm 76 is separated from the direction in which the third contact member 78 is brought into contact with the outer peripheral portion of the optical disc 2 and the outer peripheral portion of the optical disc 2 by engaging a torsion coil spring (not shown). It is energized so that it can be switched to a direction to perform.

  The disk transport mechanism 60 is a main surface of the optical disk 2 inserted from the disk insertion / removal opening 19 as an ejection assisting means for assisting an ejection operation for ejecting the optical disk 2 from the disk insertion / removal opening 19 to the outside of the housing 3. The fourth rotation arm 79 is swingable in a plane parallel to the first rotation arm 79. The fourth rotating arm 79 is made of a long sheet metal, and is an intermediate portion of the second rotating arm 62 on one of the left and right sides (for example, the left side in FIG. 4) sandwiching the turntable 47 of the disk mounting portion 41. Are supported so as to be rotatable in the directions of the arrows d1 and d2. A fourth abutting member 80 that abuts on the back side of the outer peripheral portion of the optical disc 2 inserted from the disc insertion / removal port 19 protrudes upward at the tip of the fourth rotating arm 79. Is provided.

  The fourth abutting member 80 is made of a softer resin than the optical disc 2, and a central portion that abuts on the outer peripheral portion of the optical disc 2 inserted from the disc insertion / removal opening 19 is curved inward, and both end portions thereof are expanded. The diameter flange portion 80a has a substantially hourglass shape that restricts the movement of the optical disc 2 in the height direction. The fourth contact member 80 may be a small-diameter rotating roller that is rotatably attached to the main surface of the fourth rotating arm 79 that faces the top plate portion 5a.

  Further, when the fourth rotating arm 79 is rotated in the back side, that is, in the direction of the arrow d1, the second rotating arm 62 is rotated to the back side of the fourth rotating arm 79. A restricting piece 81 for restricting movement is provided.

  The disk transport mechanism 60 has a drive lever 82 for causing the above-described rotating arms 61, 62, 76, 79 to cooperate. The drive lever 82 is made of a resin member formed in a substantially rectangular parallelepiped shape as a whole, and is disposed between one side surface portion of the bottom case 4 and the base unit 40 at the bottom surface portion of the bottom case 4. The drive lever 82 is positioned below the optical disk 2 inserted into the housing 3 from the disk insertion / removal port 19 and has a top surface substantially flush with the bottom surface of the deck section 4a. Have. The drive lever 82 is slidably driven in the front-rear direction via a displacement drive mechanism (not shown) including a drive motor and a gear group provided on the bottom surface of the bottom case 4.

  In the disk transport mechanism 60, the second support shaft 74 described above slides in the guide slit 75 in conjunction with the sliding operation of the drive lever 82. As a result, the first rotating arm 61 and the second rotating arm 62 are rotated in opposite directions via the interlocking mechanism 71. Further, a guide pin 84 that is engaged with a guide slit 83 provided on the upper surface of the drive lever 82 is provided on the base end side of the third rotating arm 76. Accordingly, the third rotation arm 76 is rotated by the guide pin 84 sliding in the guide slit 83 in conjunction with the slide operation of the drive lever 82. The fourth turning arm 79 is also turned in conjunction with the slide operation of the drive lever 82 via a coupling mechanism (not shown).

  In the disk transport mechanism 60, the first rotating arm 61, the second rotating arm 62, the third rotating arm 76, and the fourth rotating arm 79 cooperate with each other while the optical disk 2 is in operation. Loading operation for drawing the optical disk 2 into the housing 3 from the disk insertion / removal opening, centering operation for positioning the optical disk 2 at the disk mounting position, and ejection operation for ejecting the optical disk 2 from the disk insertion / removal opening 19 to the outside of the housing 3. I do.

  As shown in FIG. 4, the disk drive apparatus 1 includes a base lifting mechanism 90 that lifts and lowers the base 45 that supports the optical pickup 43 in conjunction with the slide of the drive lever 82 described above.

  The base lifting mechanism 90 raises the base 45 to lower the base 45 and the chucking position where the optical disk 2 positioned at the disk mounting position by the disk transport mechanism 60 is mounted on the turntable 47 of the disk mounting portion 41. Then, the chucking release position for removing the optical disk 2 from the turntable 47 of the disk mounting portion 41 and the base 45 are positioned between the chucking position and the chucking release position to record or reproduce signals on the optical disk 2. The base 45 is moved up and down between the intermediate positions to be performed.

  Specifically, a cam slit (not shown) corresponding to the chucking position, the chucking release position, and the intermediate position extends in the longitudinal direction on the side surface of the drive lever 82 facing the base 45. Is formed.

  A cam lever 91 is disposed on the bottom surface of the bottom case 4 along the side surface on the back side of the base 45. The cam lever 91 is made of a long flat plate member, and is slid in a direction substantially perpendicular to the sliding direction of the driving lever 82 in conjunction with the sliding of the driving lever 82 in the front-rear direction. Further, a cam piece 92 that is bent upward from an edge portion facing the base 45 is provided at an intermediate portion of the cam lever 91. The cam piece 92 is formed with cam slits (not shown) corresponding to the chucking position, the chucking release position, and the intermediate position in the longitudinal direction.

  A bent piece 93 is formed on the bottom surface of the bottom case 4 by bending along the side surface on the back side of the base 45. A vertical slit (not shown) for raising and lowering the base 45 is formed in the bent piece 93 over the vertical direction.

On the other hand, as shown in FIG. 8 , the base 45 is positioned on the side of the disc mounting portion 41 on the side surface facing the drive lever 82 and is supported by being engaged with the cam slit of the drive lever 82. The second support shaft is located on the side of the disc mounting portion 41 on the side facing the cam lever 91 and is engaged with and supported by the cam slit of the cam piece 92 and the vertical slit of the bent piece 93. 96 and a third side which is rotatably supported in a shaft hole 97 provided on the other side surface of the bottom case 4 and located on the front side of the side surface opposite to the side surface facing the drive lever 82. It is located on the front side of the side opposite to the side opposite to the side facing the camshaft 91 and the cam lever 91, and is fixedly supported to the bottom of the bottom case 4 by screws 100 via an insulator 99 made of a viscoelastic member such as rubber. Fixed support 1 It has one and.

  Therefore, in the base lifting mechanism 90, the first support shaft 95 slides in the cam slit of the drive lever 82 in conjunction with the slide of the drive lever 82 and the cam lever 91, and the second support shaft 96 is connected to the cam lever 91. By sliding the cam slit and the vertical slit of the bent piece 93, the disk mounting portion 41 side of the base 45 is located between the chucking position, the chucking release position, and the intermediate position with respect to the front surface side. Raised and lowered.

  As shown in FIG. 4, when the base lifting mechanism 90 lowers the base 45, the optical disk 2 mounted on the turntable 47 of the disk mounting portion 41 is placed on the bottom surface of the bottom case 4. A push-up pin 102 is provided as a chucking release means for releasing from 47. The push-up pin 102 is located in the vicinity of the disk mounting portion 41 of the base unit 40, specifically, on the back side of the base 45 closest to the disk mounting portion 41, and protrudes upward from the bottom surface portion of the bottom case 4. Is provided.

Next, a specific operation of the disk drive device 1 configured as described above will be described. In the disk drive device 1, as shown in FIG. 9 , in the initial state before the optical disk 2 is inserted, the first rotating arm 61 and the second rotating arm 62 have predetermined tips. It is held open at a spread angle. Further, the third rotating arm 76 is held in a state where the distal end portion is located outside the base end portion and the distal end portion is located on the front side of the base end portion. Further, the fourth rotating arm 79 is held in a state in which the distal end portion is located inside the proximal end portion and the distal end portion is located on the front side of the proximal end portion. The drive lever 82 is located on the front side of the bottom case 4.

The disk drive device 1 performs a loading operation to pull the optical disk 2 to the disk mounting position even when the optical disk 2 having a different thickness or weight is inserted from the disk insertion / removal port 19 of the housing 3. Specifically, when the optical disk 2 is inserted from the disk insertion / removal opening 19 of the housing 3, first, as shown in FIG. 10 , the outer periphery of the optical disk 2 inserted into the housing 3 from the disk insertion / removal opening 19. The rear surface side of the first contact portion 65 is in contact with the first front contact member 65 of the first rotation arm 61 and the second front contact member 68 of the second rotation arm 62.

  When the optical disk 2 is inserted into the housing 3, the sliding contact pieces 23 provided at both end portions 19 a and 19 b of the disk insertion / removal port 19 when the optical disk 2 is inserted into the housing 3 about half are the outer peripheral portions of the optical disk 2. Although a load is applied for a moment when slidingly contacting 2A, the user continues to insert the optical disc 2 and delivers it to the disc transport mechanism 60.

Next, as shown in FIG. 11, when the optical disk 2 is further pushed into the housing 3 from the disk insertion / removal port 19 from this state, the first rotating arm 61 and the second rotating arm 62 are moved to the first position. The outer peripheral portion of the optical disc 2 is sandwiched between the first front surface side contact member 65 and the second front surface side contact member 68. At this time, in a state where the first front-side contact member 65 and the second front-side contact member 68 are in contact with the back side of the outer peripheral portion of the optical disc 2, against the bias of the pivot arm 62 and the torsion coil spring is rotated direction, i.e. in the direction of arrow a2, b2 shown in FIG. 11 to be spaced apart from each other.

Then, when the first rotating arm 61 and the second rotating arm 62 are rotated by a predetermined amount in a direction away from each other, the detection switch provided on the circuit board is pressed, whereby the displacement drive mechanism The slide to the back side of the drive lever 82 is started. Thus, the third rotating arm 76 is rotated in the direction of arrow c1 shown in FIG. 11. Further, the third rotating arm 76 presses the front surface side of the outer peripheral portion of the optical disc 2 when the third contact member 78 is in contact with the front surface side of the outer peripheral portion of the optical disc 2. However, the optical disk 2 is pulled into the housing 3.

Then, as shown in FIG. 12 , the optical disc 2 is kept until the center hole 2a of the optical disc 2 is located on the back side with respect to the straight line connecting the first front-side contact member 65 and the second front-side contact member 68. Is pulled into the housing 3, the first front-side contact member 65 and the second front-side contact member 68 turn from the back side to the front side along the outer periphery of the optical disc 2. Then, this time, with the first front-side contact member 65 and the second front-side contact member 68 in contact with the front surface side of the outer peripheral portion of the optical disc 2, the first rotary arm 61 and the first direction in which the second pivot arm 62 are close to each other is biased torsion coil spring 70, that is, rotated in the direction of arrow a1, b1 shown in FIG. Thus, the first rotating arm 61 and the second rotating arm 62 pull the optical disc 2 to the disc mounting position shown in FIG. 13 while pressing the front side of the outer peripheral portion of the optical disc 2.

Further, the fourth rotating arm 79 is pressed in a state in which the fourth contact member 80 is in contact with the back side of the outer peripheral portion of the optical disc 2, thereby causing the fourth rotation arm 79 to move in the direction of the arrow d <b> 1 shown in FIG. 12. It is rotated. Then, when the optical disk 2 is pulled in at the disk mounting position shown in FIG. 13 , the fourth rotation arm 79 is brought into contact with the restriction piece 81 of the second rotation arm 62 and its rotation is restricted. It becomes a state.

In this disk drive device 1, as shown in FIG. 13 , when the first rotating arm 61 and the second rotating arm 62 draw various optical disks 2 having different thicknesses and weights to the disk mounting position. The optical disk 2 is sandwiched inside the first front-side contact member 65, the first back-side contact member 66, the second front-side contact member 68, and the fourth contact member 80, whereby these optical disks A centering operation for positioning 2 at the disk mounting position is performed. That is, the center hole 2 a of the optical disc 2 and the engagement protrusion 48 a of the turntable 47 are made to coincide with each other in the direction orthogonal to the main surface of the optical disc 2.

  Next, in the disk drive device 1, after the above-described centering operation of the optical disk 2, the base lifting mechanism 90 raises the base 45, thereby causing the optical disk 2 positioned at the disk mounting position to move to the turntable of the disk mounting portion 41. The chucking operation to be attached to 47 is performed.

Specifically, when the base 45 is raised from the chucking release position shown in FIG. 14 to the chucking position shown in FIG. 15 by the base elevating mechanism 90, it engages with the center hole 2a of the optical disk 2 positioned at the disk mounting position. While the portion 48a enters, the periphery of the center hole 2a of the optical disc 2 is pressed against the contact protrusion 7 of the top plate portion 5a, whereby the engagement protrusion 48a is engaged with the center hole 2a of the optical disc 2, and The optical disk 2 is held on the turntable 47 in a state where the plurality of locking claws 48 b are locked around the center hole 2 a of the optical disk 2. Then, with the optical disc 2 held on the turntable 47, the base 45 is lowered to the intermediate position shown in FIG .

Further, in the disk drive device 1, after the above-described chucking operation, as shown in FIG. 17 , the first rotating arm 61 and the second rotation are interlocked with the slide of the drive lever 82 to the back side. direction movement arm 62 away from each other, that is, slightly rotated in the direction of arrow a2, b2 shown in FIG. 17. At this time, the fourth rotating arm 79 is rotated integrally with the second rotating arm 62 while being in contact with the regulating piece 81. Further, the third rotation arm 76 is slightly rotated in the direction of the arrow c2 shown in FIG. 17 in conjunction with the slide of the drive lever 82 toward the back side. Thereby, from the outer periphery of the optical disc 2 held by the turntable 47, the first front-side contact member 65, the first back-side contact member 66, the second front-side contact member 68, the third The contact member 78 and the fourth contact member 80 are separated from each other.

In this disk drive device 1, when a recording or reproduction command is sent from the personal computer 1000 from the state shown in FIGS . 16 and 17 , an information signal is recorded or reproduced on the optical disk 2 based on this command. Done. Specifically, the spindle motor 49 rotates the optical disk 2 integrally with the turntable 47, and the optical pickup 43 is moved from the outer peripheral side to the inner peripheral side by the pickup feeding mechanism 44, so that focus servo control and tracking servo control are performed. As a result, the TOC data recorded in the lead-in area of the optical disc 2 is read. Thereafter, when the information signal is recorded, the optical pickup 43 moves to a predetermined address in the program area of the optical disc 2 based on the read TOC data. When reproducing the information signal, the optical pickup 43 moves to an address in the program area where the designated data is recorded. The optical pickup 43 performs an information signal writing or reading operation on a desired recording track of the optical disc 2.

  In the disk drive device 1, when an eject button 21 provided on the front panel 18 is pressed or an eject command is sent from the personal computer 1000 to the disk drive device 1, first, based on this command, The slide toward the front side of the drive lever 82 by the displacement drive mechanism is started.

Then, as shown in FIG. 18 , in conjunction with the slide of the drive lever 82 to the front side, the first rotating arm 61 and the second rotating arm 62 are close to each other, that is, in FIG. It is slightly rotated in the direction of the arrows a1 and b1 shown. At this time, the fourth rotating arm 79 is rotated integrally with the second rotating arm 62 while being in contact with the regulating piece 81. Further, the third rotation arm 76 is slightly rotated in the direction of the arrow c1 shown in FIG. 18 in conjunction with the slide of the drive lever 82 toward the front side.

  As a result, the first front-side contact member 65, the first back-side contact member 66, the second front-side contact member 68, and the third outer surface of the optical disc 2 held by the turntable 47 are arranged. The contact member 78 and the fourth contact member 80 are in contact with each other.

  Next, in the disk drive device 1, the base lifting mechanism 90 lowers the base 45 to the chucking release position, thereby performing a chucking release operation for removing the optical disk 2 from the turntable 47 of the disk mounting portion 41. Specifically, when the base 45 is lowered to the chucking release position, the tip of the push-up pin 102 comes into contact with the non-signal recording area on the inner peripheral side of the optical disc 2 mounted on the turntable 47 of the disc mounting portion 41. As a result, while pushing up the optical disk 2, the engagement between the center hole 2 a of the optical disk 2 and the locking claw 48 b of the engaging protrusion 48 a is released, and the optical disk 2 is detached from the turntable 47.

Next, in the disk drive device 1, an ejecting operation for ejecting the optical disk 2 in the disk mounting portion 41 from the disk insertion / removal port 19 to the outside of the housing 3 is performed. Specifically, when the large-diameter disk 2A is ejected from the disk insertion / removal port 19 of the housing 3, first, as shown in FIG. rotating arm 79 is rotated in the direction of arrow d2 shown in FIG. 19. Further, the fourth rotating arm 79 presses the back side of the outer peripheral portion of the optical disc 2 when the fourth contact member 80 is in contact with the back side of the outer peripheral portion of the optical disc 2. However, the optical disk 2 is pushed out of the housing 3.

As shown in FIG. 20 , the optical disc 2 is kept until the center hole 2a of the optical disc 2 is positioned on the front side of the straight line connecting the first front-side contact member 65 and the second front-side contact member 68. Is discharged to the outside of the housing 3, the first front-side contact member 65 and the second front-side contact member 68 wrap around from the front side to the back side along the outer periphery of the optical disc 2. . Then, this time, with the first front-side contact member 65 and the second front-side contact member 68 in contact with the back side of the outer peripheral portion of the optical disc 2, direction in which the second pivot arm 62 are close to each other is biased torsion coil spring 70, that is, rotated in the direction of arrow a1, b1 shown in FIG. 20. Accordingly, the first rotating arm 61 and the second rotating arm 62 press the optical disk 2 at the disk insertion / removal position shown in FIG. The hole 2a is pushed out from the disk insertion / removal opening 19 to a position where it is exposed to the outside of the housing 3.

When the optical disk 2 is pushed out to the disk insertion / removal position shown in FIG. 21 , the sliding contact pieces 23 provided at both ends 19 a, 19 b of the disk insertion / removal opening 19 are the first and second rotating arms of the disk transport mechanism 60. By applying a load to the optical disk pushed out by 61 and 62, the discharge amount of the optical disk 2 is optimized. That is, when the optical disc 2 is ejected by about half, the sliding contact piece 23 is in sliding contact with the outer peripheral portion 2A of the optical disc 2 to apply a load . Therefore, the center hole 2a of the optical disc 2 shown in FIG. The optical disc 2 can be stopped at the disc ejection position exposed to the outside. As a result, the user can grasp the inner periphery of the center hole 2a of the optical disc 2 and the outer periphery of the optical disc 2 that are exposed to the outside through the disc insertion / removal port 19, and can easily remove the optical disc 2.

Here, as described above, the first and second rotating arms 61 and 62 are urged to rotate in directions close to each other by the urging force of the torsion coil spring 70, thereby moving the optical disk 2 out of the housing 3. Extrude. Therefore, depending on the type of the optical disk, the thickness and weight of the disk vary, so that only a biasing force by the torsion coil spring 70 is used, and any of the plurality of types of optical disks 2 is used. It is difficult to eject the optical disc 2 to the ejection position. However, since the disk drive device 1 to which the present invention is applied has the sliding contact pieces 23 at both ends of the disk insertion / removal opening 19, the torsion coil spring 70 is used until the optical disk 2 is ejected about half from the disk insertion / removal opening 19. When the optical disk 2 is pushed out by the first and second rotating arms 61 and 62 that have received the urging force, and the optical disk 2 is ejected from the disk insertion / removal port 19 by about half, the sliding contact piece 23 is moved to the optical disk 2 at this timing. A load is applied by sliding contact with the outer peripheral portion 2A. Accordingly, even when various types of optical disks 2 having different thicknesses and weights are used, the disk insertion / removal position shown in FIG. The ejection of the optical disk 2 can be stopped at a position exposed to the outside of the housing 3.

The third rotating arm 76 is rotated in the direction of the arrow c2 shown in FIG. 20 when the third abutting member 78 is pressed while being in contact with the outer peripheral portion of the optical disc 2 . The

  The present invention is not limited to the one applied to the slot-in type disk drive device 1 mounted on the above-described notebook type personal computer 1000, and performs recording and / or reproduction of information signals with respect to the optical disk. The present invention can be widely applied to household and vehicle-mounted disk drive devices and game machines.

1 is a perspective view showing an appearance of a notebook personal computer equipped with a disk drive device. FIG. It is an external appearance perspective view which shows the disc drive apparatus which discharged the optical disk to the optimal discharge position. It is the perspective view which looked at the top cover from the inner surface side. It is a top view which shows the structure of a disk drive apparatus. It is a front view which shows a front panel. It is a rear view which shows a front panel. It is sectional drawing which shows the front panel of a disk drive apparatus. It is a perspective view which shows the structure of a base unit. It is a figure for demonstrating operation | movement of a disc drive apparatus, and is a top view which shows an initial state. It is a figure for demonstrating operation | movement of a disc drive apparatus, and is a top view which shows the insertion start state of an optical disk. It is a figure for demonstrating operation | movement of a disk drive apparatus, and is a top view which shows the drawing start state of an optical disk. It is a figure for demonstrating operation | movement of a disc drive apparatus, and is a top view which shows the drawing-in state at the time of drawing-in of an optical disk. It is a figure for demonstrating operation | movement of a disc drive apparatus, and is a top view which shows the centering state of an optical disk. It is a figure for demonstrating operation | movement of a disc drive apparatus, and is a side view which shows the state which has a base unit in a chucking release position. It is a figure for demonstrating operation | movement of a disc drive apparatus, and is a side view which shows the state which has a base unit in a chucking position. It is a figure for demonstrating operation | movement of a disc drive apparatus, and is a side view which shows the state which has a base unit in an intermediate position. It is a figure for demonstrating operation | movement of a disc drive apparatus, and is a top view which shows the chucking state of an optical disk. It is a figure for demonstrating operation | movement of a disk drive apparatus, and is a top view which shows the chucking cancellation | release state of an optical disk. It is a figure for demonstrating operation | movement of a disc drive apparatus, and is a top view which shows the ejection start state of an optical disk. It is a figure for demonstrating operation | movement of a disk drive apparatus, and is a top view which shows the extrusion state at the time of discharge | emission of an optical disk. It is a figure for demonstrating operation | movement of a disc drive apparatus, and is a top view which shows the ejection state of an optical disk.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disk drive apparatus, 2 Optical disk, 3 Housing | casing, 18 Front panel, 19 Disk insertion / extraction slot, 23 Sliding contact piece, 24 Storage recessed part, 40 Base unit, 41 Disk mounting part, 42 Disk rotation drive mechanism, 43 Optical pick-up, 44 Pickup feed mechanism, 45 base, 47 turntable, 48 chucking mechanism, 48a engagement protrusion, 48b locking claw, 61, 62 first and second rotating arms, 64 first support shaft, 70 torsion coil spring 71 coupling mechanism, 90 base lifting mechanism

Claims (3)

A housing having a front panel provided with a substantially rectangular disk insertion / extraction opening;
A plurality of pivot arms for sandwiching the outer periphery of the optical disc; and biasing means for biasing the plurality of pivot arms in a predetermined direction according to the transport position of the optical disc, and the disc insertion opening of the front panel A disk transport mechanism for transporting the optical disk between a disk insertion / removal position at which the optical disk is inserted / removed and a disk mounting position at which the optical disk inserted into the housing is mounted;
A disk mounting unit on which an optical disk transported in the housing is mounted, a disk rotation driving mechanism that rotates the optical disk mounted on the disk mounting unit, and an optical disk that is rotated by the disk rotation driving mechanism An optical pickup for recording and / or reproducing information signals, and a pickup feeding mechanism for operating the optical pickup in the radial direction of the optical disc,
At least one end in the longitudinal direction of the disc insertion / removal opening is softer than the optical disc that regulates the discharge amount of the optical disc by applying a load by sliding on the outer peripheral surface of the optical disc inserted / removed from the disc insertion / removal opening. A disk drive device provided with a sliding contact piece made of woven fabric, cloth, fiber or leather . 2. The disk drive device according to claim 1, wherein the sliding contact piece is made of artificial leather suede . 3. The disk drive device according to claim 1, wherein the sliding contact piece is attached to an accommodation recess formed on the back side of the front panel via an adhesive or the like.

Images