JP5042062B2 - Disk drive device and electronic device - Google Patents

Description

  The present invention relates to the technical field of disk drive devices and electronic equipment. More specifically, the present invention relates to a technical field in which an adsorption magnet that biases a disk table in a direction away from a disk-shaped recording medium is provided to prevent optimization of a chucking operation for the disk-shaped recording medium.

  There is a disk drive device that records and / or reproduces information signals on / from a disk-shaped recording medium (see, for example, Patent Document 1).

  In the disk drive device, there is a type in which the disk-shaped recording medium is conveyed in a direction substantially orthogonal to the moving direction of the disk table.

  In such a disk drive device, for example, when a disk-shaped recording medium is inserted from a disk insertion slot, the disk-shaped recording medium is loaded by a disk loading mechanism, and the center hole of the disk-shaped recording medium is the centering of the disk table. It is transported to the centering position located directly above the protrusion.

  The disk loading mechanism includes, for example, a cam slider that has a cam groove and is moved in a predetermined direction, and a cam pin that is slidably engaged with the cam groove of the cam slider. The cam pin is provided in a disk drive unit having a disk table and an optical pickup.

  In such a disc loading mechanism, when the cam slider is moved, the position of the cam pin in the cam groove is changed, and the disc drive unit is moved in a direction to come in contact with the recording surface of the disc-shaped recording medium at the center ring position. .

  As described above, when the disc-shaped recording medium is conveyed to the centering position, the cam slider is subsequently moved to raise the disc drive unit. As the disk drive unit is raised, the engaging claw provided on the outer periphery of the center ring protrusion of the disk table comes into contact with the inner periphery of the disk-shaped recording medium, and the disk-shaped recording medium moves up the disk driving unit. Is lifted along with.

  The disc-shaped recording medium is brought into contact with a pressing projection provided on a cover body having an inner peripheral portion located above the disc-shaped recording medium. When the inner periphery of the disk-shaped recording medium comes into contact with the pressing protrusion of the cover body, the cover body is elastically deformed by the ascending operation of the disk drive unit, but the cover body is elastically deformed by a predetermined amount. The inner peripheral edge of the disc-shaped recording medium is strongly pressed against the engaging claw of the disc table by the reaction force of the body, the engaging claw is bent toward the center side of the disc table, and the center of the disc table is inserted into the center hole of the disc-shaped recording medium. A ring protrusion is inserted.

  When the centering protrusion of the disc table is inserted into the center hole of the disc-shaped recording medium, the bent engaging claws are elastically restored to engage with the inner periphery of the disc-shaped recording medium. Is held on the disk table and mounted (chucked).

  When the mounting of the disk-shaped recording medium on the disk table is completed, the disk drive unit is moved downward, the disk-shaped recording medium is separated downward from the cover body, and the cover body is elastically restored.

  The disc-shaped recording medium is held on the disc table by an engaging claw, is rotated along with the disc table rotated by a spindle motor, and information signals are recorded on or reproduced from the disc-shaped recording medium by driving an optical pickup. .

JP 2000-123516 A

  By the way, the disk drive device is incorporated in various electronic devices such as an audio device, a personal computer, and a disk recorder for recording television. Such disk drive devices tend to be thinner with the demand for thinner electronic devices, and are particularly incorporated into electronic devices with high demands for slimming, such as notebook personal computers. In that case, there is a need for further thinning.

  Such electronic devices include a type in which the rotation axis (center axis) direction of the disk table of the disk drive device is oriented vertically, and the rotation axis direction of the disk table of the disk drive device is the front-rear direction or the left-right direction. There is a so-called vertical type that is arranged to face the direction. For example, in some notebook personal computers, a disk drive device is arranged on the back side of the display unit. In such personal computers, the disk table is opened with the display unit open with respect to the keyboard. Since the rotation axis direction of the is directed in the front-rear direction, it becomes a vertical type.

  However, there is a certain clearance between the cam groove of the cam slider and the cam pin in the disk loading mechanism described above in the same direction as the rotation axis of the disk table to ensure smooth sliding of the cam pin with respect to the cam groove. Therefore, in the above-described vertical type, there is a possibility that the cam pin is displaced in the rotation axis direction of the disk table in the cam groove by the clearance between the cam pin and the cam groove.

  Accordingly, when the cam pin is displaced in the rotation direction of the disc table in the cam groove and the disc table is displaced by that amount, the disc-shaped recording medium is inserted from the disc insertion port and conveyed to the centering position. Sometimes, a sufficient distance between the disc-shaped recording medium and the disc table cannot be secured, and the disc-shaped recording medium being transported collides with the disc table, and the disc-shaped recording medium or the disc table is damaged or damaged. There is a risk that sticking may occur or the chucking operation of the disc-shaped recording medium cannot be optimized.

  On the other hand, in order to prevent the collision of the disk-shaped recording medium with the disk table, a design that ensures a sufficient distance in advance between the disk-shaped recording medium conveyed to the centering position and the disk table may be performed. However, if such a design is performed, the distance between the disk-shaped recording medium and the disk table increases, and the disk drive device cannot be thinned.

  SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to overcome the above-described problems, to optimize the chucking operation for a disc-shaped recording medium, and to reduce the thickness thereof.

  In order to solve the above-described problems, the disk drive device has a disk table on which a disk-shaped recording medium is mounted, a spindle motor that rotates the disk table, and a radial direction of the disk-shaped recording medium mounted on the disk table. A disk drive unit having an optical pickup to be moved and a pickup base for supporting the optical pickup so as to be movable in a radial direction of the disk-shaped recording medium, and being movable in a substantially central axis direction of the disk table; A base surface portion positioned opposite to the disk drive unit on the opposite side of the disk table across the spindle motor, and having a cam groove to move the disk drive unit in a substantially central axis direction of the disk table Equipped with a cam slider The disk drive unit is provided with a motor unit having the spindle motor and the disk table and positioned facing the base surface portion, and is slidably engaged with the cam groove of the cam slider. Cam pins are provided, and an attracting magnet is disposed at one position of the base surface portion and the motor unit facing each other, and a magnetic material attracted by the attracting magnet is disposed at the other position.

  Therefore, the magnetic body is attracted by the attracting magnet, and the cam pin is pressed against one side of the opening edge in the cam groove.

Further, the disk drive device generates a leakage magnetic flux that leaks to the outside from a driving magnet disposed inside the spindle motor, uses the driving magnet as the attracting magnet, and the leakage flux on the base surface portion. A magnetic body that is attracted to the drive magnet is arranged .

Therefore, a dedicated magnet for energizing the disk drive unit in the direction away from the conveyance path of the disk-shaped recording medium is required by using the drive magnet arranged inside the spindle motor as the attracting magnet. do not do.

Alternatively, in the disk drive device , a magnetic body is disposed at a position facing the motor unit on the base surface portion, and an attracting magnet is disposed at a position facing the magnetic body in the motor unit. The part where the magnet is arranged is provided as a magnet arrangement part, the magnet arrangement part is formed of a magnetic material, the magnet arrangement hole is formed in the magnet arrangement part, and the insertion magnet is inserted into the magnet arrangement hole And the flange portion projecting outward from one end portion of the insertion portion, and the attraction magnet is placed in a state where the flange portion is located on the opposite side of the magnetic body with the magnet arrangement portion interposed therebetween. It arrange | positions in the said magnet arrangement | positioning part .

Therefore, by constructing the adsorption magnet as described above and inserting it into the magnet arrangement hole, the adsorption magnet is fixed to the magnet arrangement part of the motor unit by magnetic force, and the adsorption magnet is attracted to the magnetic body side. It is done.

An electronic device is an electronic device that includes a disk drive device that records and / or reproduces information signals on / from a disk-shaped recording medium, and includes a disk table on which the disk-shaped recording medium is mounted and the disk table. A spindle motor that rotates, an optical pickup that is moved in a radial direction of the disk-shaped recording medium mounted on the disk table, and a pickup base that supports the optical pickup so as to be movable in the radial direction of the disk-shaped recording medium; And a disk drive unit that is movable in a substantially central axis direction of the disk table, a base surface portion that faces the disk drive unit on the opposite side of the disk table across the spindle motor, and a cam groove. The disc drive is moved in a predetermined direction. A cam slider that moves the unit in a substantially central axis direction of the disk table, and the disk drive unit includes the spindle motor and the disk table, and is provided with a motor unit that is positioned to face the base surface portion, The disk drive unit is provided with a cam pin that is slidably engaged with the cam groove of the cam slider, and an adsorption magnet is disposed at one position of the base surface portion and the motor unit facing each other, and the adsorption at the other position. A magnetic body that is attracted to the magnet for use is arranged. Further, a leakage magnetic flux leaking to the outside from a driving magnet arranged inside the spindle motor is generated, the driving magnet is used as the attracting magnet, and the driving force is applied to the base surface portion by the leakage magnetic flux. A magnetic body attracted by a magnet is arranged. Alternatively, a portion in which the magnetic body is disposed at a position facing the motor unit in the base surface portion, an adsorption magnet is disposed at a position facing the magnetic body in the motor unit, and the adsorption magnet is disposed in the motor unit. Is provided as a magnet arrangement portion, the magnet arrangement portion is formed of a magnetic material, a magnet arrangement hole is formed in the magnet arrangement portion, and an insertion portion into which the attracting magnet is inserted into the magnet arrangement hole and the insertion portion And a flange portion projecting outward from one end portion, and the attraction magnet is arranged on the magnet arrangement portion in a state where the flange portion is located on the opposite side of the magnetic body with the magnet arrangement portion interposed therebetween. It is a thing.

  Therefore, the magnetic body is attracted by the attracting magnet, and the cam pin is pressed against one side of the opening edge in the cam groove.

  The disk drive device according to the present invention includes a disk table on which a disk-shaped recording medium is mounted, a spindle motor that rotates the disk table, an optical pickup that is moved in the radial direction of the disk-shaped recording medium mounted on the disk table, and A disk drive unit having a pickup base that supports the optical pickup so as to be movable in the radial direction of the disk-shaped recording medium, and is movable in a substantially central axis direction of the disk table; and a disk table sandwiching the spindle motor A base surface portion positioned opposite to the disk drive unit on the opposite side, and a cam slider having a cam groove and moved in a predetermined direction to move the disk drive unit in a substantially central axis direction of the disk table. The disk drive unit A motor unit that has the spindle motor and the disk table and is positioned to face the base surface portion, and a cam pin that is slidably engaged with the cam groove of the cam slider. The attracting magnet is disposed at one position of the base surface portion and the motor unit facing each other, and the magnetic material attracted by the attracting magnet is disposed at the other position.

  Therefore, since the disk drive unit is urged away from the transport path of the disk-shaped recording medium by the attracting magnet, a sufficient distance is secured between the disk-shaped recording medium and the disk table, and the disk being transported The recording medium does not collide with the disk table, so that the disk recording medium or the disk table can be prevented from being damaged or damaged, and the chucking operation can be optimized and thinned.

Furthermore, the disk drive device of the present invention generates a leakage magnetic flux that leaks to the outside from a driving magnet disposed inside the spindle motor, and uses the driving magnet as the attracting magnet. Since the magnetic material that is attracted to the driving magnet by the magnetic flux is arranged, a dedicated magnet for energizing the disk drive unit in the direction away from the conveyance path of the disk-shaped recording medium is not required, and the number of parts is reduced. Reduction can be achieved.

Alternatively, in the disk drive device of the present invention , a magnetic body is disposed at a position facing the motor unit in the base surface portion, and an attracting magnet is disposed at a position facing the magnetic body in the motor unit. The magnet placement portion is provided as a magnet placement portion, the magnet placement portion is formed of a magnetic material, the magnet placement hole is formed in the magnet placement portion, and the attracting magnet is inserted into the magnet placement hole. The attracting magnet is configured by an insertion portion and a flange portion projecting outward from one end portion of the insertion portion, and the flange portion is positioned on the opposite side of the magnetic body with the magnet placement portion interposed therebetween. Is placed in the magnet placement section, Since the magnet for attracting is attracted to the magnetic body side and is attracted to the magnetic body side by the magnetic force, the magnet for attracting from the motor unit is avoided from being attached to the motor unit by bonding or the like. be able to.

An electronic apparatus according to the present invention is an electronic apparatus including a disk drive device that records and / or reproduces an information signal to / from a disk-shaped recording medium, the disk table on which the disk-shaped recording medium is mounted, and the disk A spindle motor that rotates the table, an optical pickup that is moved in the radial direction of the disk-shaped recording medium mounted on the disk table, and a pickup base that supports the optical pickup so as to be movable in the radial direction of the disk-shaped recording medium; A disk drive unit that is movable in a substantially central axis direction of the disk table, a base surface portion that is positioned opposite to the disk drive unit on the opposite side of the disk table across the spindle motor, and a cam groove And moved in a predetermined direction to And a cam slider for moving the disk drive unit in a substantially central axis direction of the disk table, and the disk drive unit includes the spindle motor and the disk table, and a motor unit positioned opposite the base surface portion is provided. The disk drive unit is provided with a cam pin that is slidably engaged with the cam groove of the cam slider, and an adsorption magnet is disposed at one position of the base surface portion and the motor unit facing each other, and the other position. A magnetic body to be attracted to the attraction magnet is disposed. Further, a leakage magnetic flux leaking to the outside from a driving magnet arranged inside the spindle motor is generated, the driving magnet is used as the attracting magnet, and the driving force is applied to the base surface portion by the leakage magnetic flux. A magnetic material attracted by the magnet is arranged. Alternatively, a portion in which the magnetic body is disposed at a position facing the motor unit in the base surface portion, an adsorption magnet is disposed at a position facing the magnetic body in the motor unit, and the adsorption magnet is disposed in the motor unit. Is provided as a magnet arrangement portion, the magnet arrangement portion is formed of a magnetic material, a magnet arrangement hole is formed in the magnet arrangement portion, and an insertion portion into which the attracting magnet is inserted into the magnet arrangement hole and the insertion portion And a flange portion projecting outward from one end portion, and the attraction magnet is arranged on the magnet arrangement portion in a state where the flange portion is located on the opposite side of the magnetic body with the magnet arrangement portion interposed therebetween. It is characterized by that.

  Therefore, since the disk drive unit is urged away from the transport path of the disk-shaped recording medium by the attracting magnet, a sufficient distance is secured between the disk-shaped recording medium and the disk table, and the disk being transported The recording medium does not collide with the disk table, so that the disk recording medium or the disk table can be prevented from being damaged or damaged, and the chucking operation can be optimized and thinned.

  The best mode of the disk drive device and the electronic apparatus of the present invention will be described below with reference to the accompanying drawings. In the best mode described below, the electronic device of the present invention is applied to a personal computer, and the disk drive device of the present invention is applied to a disk drive device provided in the personal computer.

  The application range of the electronic device and the disk drive device of the present invention is not limited to the personal computer and the disk drive device provided therein, and the electronic device of the present invention includes various electronic devices that handle disk-shaped recording media, For example, the present invention is widely applied to game devices, information terminal devices such as PDAs (Personal Digital Assistants), imaging devices such as still cameras, electronic cameras, and video cameras, recording devices that handle various disc-shaped recording media, and audio devices. The disk drive apparatus of the present invention can be widely applied to disk drive apparatuses that record and / or reproduce information signals on and from disk-shaped recording media handled in these various electronic devices.

  An electronic device (personal computer) 1 is, for example, a so-called notebook personal computer including an apparatus main body 2 and a display device 3 rotatably supported by the apparatus main body 2 as shown in FIG. A keyboard 4 on which necessary operation keys are arranged is provided on the apparatus main body 2. The electronic device 1 may be, for example, a so-called desktop personal computer in which a device main body and a keyboard device are provided separately.

  The display device 3 incorporates a disk drive device 5.

  In the following description of the disk drive device 5, for convenience of explanation, the disk insertion port side to be described later is on the right side, and the insertion direction of the disk-shaped recording medium with respect to the disk insertion port is on the left side. As shown in FIG. 1, the vertical and horizontal directions are defined in the vertical position. That is, the insertion / removal direction of the disc-shaped recording medium 100 is the left-right direction, and the thickness direction of the disc-shaped recording medium 100 is the front-rear direction.

  The disk drive device 5 is formed in a flat and substantially rectangular shape, and each required part is arranged in the outer casing 6 (see FIG. 2). The outer casing 6 includes a case body 7 having a shallow box shape opened rightward and forward, a cover body 8 for closing the case body 7 from the front, and a front panel 9 attached to the right end of the case body 7.

  An insertion hole 8 a is formed at the center of the cover body 8.

  A disc insertion slot 9 a is formed in the front panel 9, and the disc insertion slot 9 a is formed in a vertically long shape corresponding to the shape of the disc-shaped recording medium 100. The disc insertion slot 9a is opened and closed by a shutter (not shown).

  The case body 7 includes a base surface portion 10 facing in the front-rear direction and a peripheral surface portion 11 protruding forward from the outer peripheral edge of the base surface portion 10 (see FIG. 3).

  A first cam slider 12 is supported inside the case body 7 so as to be movable in the left-right direction. A cam groove 13 is formed in the first cam slider 12. The cam groove 13 is continuous to the left end of the first linear portion 13a, the inclined portion 13b extending obliquely leftward from the left end of the first linear portion 13a, and the left end of the first inclined portion 13b. The second linear portion 13c extends.

  The first cam slider 12 is moved in the left-right direction by a driving force of a driving motor (not shown) disposed inside the case body 7.

  A second cam slider 14 is supported inside the case body 7 so as to be movable in the vertical direction. Cam grooves 15 are formed in the second cam slider 14 so as to be spaced apart from each other in the vertical direction. The cam groove 15 includes a first linear portion 15a extending vertically, an inclined portion 15b extending obliquely downward and forward from a lower end of the first linear portion 15a, and a lower end of the first inclined portion 15b. The second straight portion 15c extends.

  The first cam slider 12 and the second cam slider 14 are connected by a connecting lever (not shown), and are moved in the left-right direction and the up-down direction in synchronization with the driving force of the drive motor. Therefore, when the first cam slider 12 is moved to the right, the second cam slider 14 is moved synchronously upward, and when the first cam slider 14 is moved to the left, the second cam slider is moved. 14 is moved downward synchronously.

  A disk drive unit 16 is supported inside the case body 7 so as to be movable in a substantially front-rear direction.

  As shown in FIGS. 3 to 5, the disk drive unit 16 is attached to a pickup base 17, an optical pickup 18 that is supported by the pickup base 17 in a radial direction of the disk-shaped recording medium 100, and the pickup base 17. And a motor unit 19.

  The pickup base 17 has an arrangement hole 17a penetrating in the front-rear direction.

  A supported shaft 17 b that protrudes downward is provided at the right end of the outer peripheral surface of the pickup base 17. The supported shaft 17b is supported by the peripheral surface portion 11 of the case body 7, and is rotatable with respect to the case body 7 so that the disk drive unit 16 moves substantially in the front-rear direction.

  Cam pins 20, 21, 21 protrude from the outer peripheral surface of the pickup base 17. The cam pin 20 protrudes upward, and the cam pins 21 and 21 are spaced apart in the vertical direction and protrude toward the left. The cam pin 20 is slidably engaged with the cam groove 13 of the first cam slider 12, and the cam pins 21 and 21 are slidably engaged with the cam grooves 15 and 15 of the second cam slider 14, respectively. .

  The motor unit 19 includes a motor mounting plate 22, a spindle motor 23 mounted on the motor mounting plate 22, and a disk table 24 fixed to the motor shaft of the spindle motor 23. The motor mounting plate 22 is made of a magnetic metal material and is provided as a magnetic body 22A. The motor mounting plate 22 is mounted on the rear surface of the pickup base 17 in a direction facing the front-rear direction.

  In a state where the motor mounting plate 22 is mounted on the rear surface of the pickup base 17, the disk table 24 protrudes forward from the arrangement hole 17a.

  The disc table 24 has a centering projection 24a at the center, and a table portion 24b on which the disc-shaped recording medium 100 is placed is provided on the outer peripheral side of the centering projection 24a. Engaging claws 24c, 24c, and 24c are provided on the outer peripheral portion at the front end portion of the centering protrusion 24a so as to be spaced apart from each other in the circumferential direction. The engaging claws 24c, 24c, and 24c can be elastically deformed in a direction in which the engaging claws 24c, 24c, and 24c are in contact with and separated from the center of the center ring protrusion 24a.

  An attracting magnet 25 is attached to the front surface of the base surface portion 10 of the cover body 7 at a portion facing the motor mounting plate 22 (see FIG. 3). Therefore, the motor mounting plate 22 provided as the magnetic body 22A is attracted by the attracting magnet 25, and the entire disk drive unit 16 including the motor mounting plate 22 is urged rearward.

  Since the disk drive unit 16 is urged backward by the attracting magnet 25 in this way, as shown in FIGS. 6 and 7, the cam pins 20, 21, and 21 provided on the disk drive unit 16 are respectively The cam grooves 13, 15, 15 of the first cam slider 12 and the second cam slider 14 are pressed against the rear surfaces. Therefore, when the first cam slider 12 and the second cam slider 14 are moved, the cam grooves 13, 15, 15 are relatively moved with the cam pins 20, 21, 21 pressed against the rear surfaces of the cam grooves 13, 15, 15. Moved.

  In the disk drive device 5 configured as described above, when the disk-shaped recording medium 100 is manually inserted from the disk insertion opening 9a of the front panel 9, the disk-shaped recording medium 100 is held by a conveyance mechanism (not shown) and is conveyed. By the mechanism, the center hole 100a is transported to a centering position located just above the centering protrusion 24a of the disk table 24 and stopped.

  At this time, as described above, since the disk drive unit 16 is urged rearward by the attracting magnet 25, the disk table 24 is the most with respect to the conveyance path of the disk-shaped recording medium 100 as shown in FIG. A sufficient distance (interval H) is formed between the disc-shaped recording medium 100 and the front end surface (front surface) of the disc table 24 that exists at a long distance. Therefore, the disc-shaped recording medium 100 is conveyed to the centering position without colliding with the disc table 24.

  When the disc-shaped recording medium 100 is conveyed to the centering position, the drive motor is activated, the first cam slider 12 is moved to the right by the driving force of the drive motor, and the second cam slider 14 is moved upward. Moved.

  When the first cam slider 12 and the second cam slider 14 are moved, the cam pins 20, 21, 21 are changed from the first straight portions 13 a, 15 a, 15 a of the cam grooves 13, 15, 15 to the inclined portions 13 b, respectively. The disk drive unit 16 is rotated in the direction in which the disk table 24 is moved substantially forward by being relatively moved to the second linear portions 13c, 15c, and 15c via 15b and 15b.

  When the disk drive unit 16 is rotated in the direction in which the disk table 24 is moved substantially forward, the centering protrusion 24a of the disk table 24 is fitted into the center hole 100a of the disk-shaped recording medium 100. The claws 24c, 24c, and 24c are once elastically deformed toward the center side of the centering protrusion 24a and then elastically restored to engage with the opening edge of the center hole 100a of the disc-shaped recording medium 100. Accordingly, the disc-shaped recording medium 100 is mounted (chucked) on the disc table 24 by being held by the engaging claws 24c, 24c, 24c.

  The centering protrusion 24a is fitted into the center hole 100a of the disc-shaped recording medium 100 when a part of the disc-shaped recording medium 100 is pressed against the cover body 8 by the forward movement of the disc table 24. Done.

  When the disc-shaped recording medium 100 is mounted on the disc table 24, the drive motor is reversed, and the first cam slider 12 is moved to the left and the second cam slider 14 is moved downward. When the first cam slider 12 and the second cam slider 14 are moved, the cam pins 20, 21, and 21 are moved from the second straight portions 13c, 15c, and 15c of the cam grooves 13, 15, and 15 to the first straight line, respectively. The disk drive unit 16 is rotated in the direction in which the disk table 24 is moved substantially rearward while being relatively moved toward the portions 13a, 15a, and 15a.

  When the cam pins 20, 21, and 21 are relatively moved to predetermined positions of the cam grooves 13, 15, and 15, the drive motor is stopped. When the drive motor is stopped, the holding of the disk-shaped recording medium 100 by the transport mechanism is released, and the disk-shaped recording medium 100 is rotated along with the rotation of the disk table 24 by the rotation of the spindle motor 77 to drive the optical pickup 18. As a result, information signals are recorded or reproduced on the disc-shaped recording medium 100.

  When the recording or reproduction of the information signal with respect to the disc-shaped recording medium 100 is completed, the rotation of the drive motor is started again by the user's operation on the eject button (not shown).

  When the drive motor is rotated, the first cam slider 12 is moved to the left and the second cam slider 14 is moved downward, so that the disk table 24 on which the disk-shaped recording medium 100 is mounted is substantially rearward. The disk drive unit 16 is rotated in the moving direction. At this time, the disc-shaped recording medium 100 is again held by the transport mechanism.

  When the disk drive unit 16 is rotated, the centering protrusion 24a of the disk table 24 is pulled out from the center hole 100a of the disk-shaped recording medium 100 held by the transport mechanism by the movement of the disk table 24 substantially rearward. Thus, the mounting of the disk-shaped recording medium 100 on the disk table 24 is released.

  In the disk drive unit 16, the cam pins 20, 21, 21 are moved along the first cam slider 12 and the second cam slider 14 so that the first straight portions 13 a, 15 a, 15 a of the cam grooves 13, 15, 15 respectively. The disk table 24 is positioned at the rear moving end.

  At this time, since the motor mounting plate 22 provided as the magnetic body 22A is attracted by the attracting magnet 25 as described above, the entire disk drive unit 16 is urged rearward, and the cam pins 20, 21, 21 Are pressed against the rear surfaces of the first linear portions 13a, 15a, 15a of the cam grooves 13, 15, 15 respectively. Accordingly, the disk table 24 is located at the farthest position with respect to the conveyance path of the disk-shaped recording medium 100 and a sufficient distance H between the disk-shaped recording medium 100 and the front end surface of the disk table 24 (see FIG. 8). Is formed.

  The disc-shaped recording medium 100 is conveyed rightward from the centering position by the conveying mechanism, and a part of the disc-shaped recording medium 100 protrudes rightward from the disc insertion opening 9a of the front panel 9. Therefore, the user can take out the disc-shaped recording medium 100 from the disc drive device 5 by grasping the portion protruding from the disc insertion slot 9a.

  As described above, since the disk table 24 is located at the farthest position with respect to the conveyance path of the disk-shaped recording medium 100, the disk-shaped recording medium 100 is conveyed rightward from the centering position. Sometimes, the disc-shaped recording medium 100 does not collide with the disc table 24.

  In the above, an example in which the motor mounting plate 22 is provided as the magnetic body 22A and the attracting magnet 25 is disposed at a position facing the magnetic body 22A in the base surface portion 10 of the case body 7 is shown. The attracting magnet 25A may be attached to the base 22, and the base surface portion 10 may be provided as the magnetic body 10A.

  In this case, for example, as shown in FIG. 9, a part of the motor mounting plate 22 is provided as a magnet arrangement portion 22a in which the attracting magnet 25A is arranged, and a magnet arrangement hole 26 is formed in the magnet arrangement portion 22a. It is possible to arrange the attracting magnet 25A.

  The attracting magnet 25A includes an insertion portion 25a inserted into the magnet arrangement hole 26 and a flange portion 25b projecting outward from the front end portion of the insertion portion 25a. The attracting magnet 25A is arranged with the flange portion 25b in contact with the front surface of the magnet arrangement portion 22a in a state where the insertion portion 25a is inserted into the magnet arrangement hole 26.

  In this way, the attracting magnet 25A is constituted by the insertion portion 25a and the flange portion 25b, and the insertion portion 25a is inserted into the magnet arrangement hole 26 from the opposite side of the magnetic body 10A, whereby the attracting magnet 25A is attracted to the magnetic body 10A. Therefore, it is possible to prevent the attracting magnet 25A from falling off the motor mounting plate 22 without fixing the attracting magnet 25A to the motor mounting plate 22 by adhesion or the like.

  In this case, it is desirable that the motor mounting plate 22 be formed of a magnetic material. By forming the motor mounting plate 22 from a magnetic material, the attracting magnet 25A is fixed to the motor mounting plate 22 by a magnetic force, and the attraction of the attracting magnet 25A from the motor mounting plate 22 can be avoided.

  In the above, an example in which the attracting magnet 25 or the attracting magnet 25A is arranged on the base surface portion 10 of the cover body 7 or the motor mounting plate 22 and the disk drive unit 16 is biased to one side is shown. As described above, the disk drive unit 16 can be urged to one side using the drive magnet disposed inside the spindle motor 23 (see FIG. 10).

  For example, an annular driving magnet 25B is disposed inside the spindle motor 23, and the driving magnet 25B is used as an attracting magnet. The drive magnet 25B is formed, for example, with N poles and S poles alternately adjacent to each other in the circumferential direction, and is used as a rotor or a stator.

  In the spindle motor 23, leakage magnetic flux J, J,... From the drive magnet 25B is generated. The leakage magnetic flux J, J,... Is generated by forming a hole in a part of the outer casing of the spindle motor 23, for example.

  The base surface portion 10 of the cover body 7 is provided as a magnetic body 10A.

  As described above, the leakage magnetic flux J, J,... Is generated from the driving magnet 25B of the spindle motor 23, and the base surface portion 10 is provided as the magnetic body 10A, whereby the disk drive unit 16 is drawn toward the base surface portion 10 side. It is done.

  By energizing the disk drive unit 16 to one side using the leakage magnetic fluxes J, J,..., A dedicated magnet for energizing the disk drive unit 16 is not required, and the number of parts is reduced. be able to.

  As described above, in the disk drive device 5, the disk drive unit 16 is urged away from the conveyance path of the disk-shaped recording medium 100 using the attracting magnets 25, 25 </ b> A or the drive magnet 25 </ b> B. Therefore, a sufficient distance is ensured between the disc-shaped recording medium 100 and the disc table 24, and the disc-shaped recording medium 100 being transported does not collide with the disc table 24. 24 can be prevented from being damaged or damaged, and the chucking operation can be optimized and thinned.

  In the above, in the motor unit 19, the example in which the motor mounting plate 22 is the magnetic body 22 </ b> A has been shown. However, in the motor unit 19, the magnetic body is not limited to the motor mounting plate 22. The other part which comprises the motor unit 19 may be sufficient.

  In addition, the disk drive unit 16 may be configured to be attracted to the attracting magnet 25 as a magnetic body other than the motor unit 19.

  Further, in the disk drive unit 16, it is possible to dispose the attracting magnet 25 or the attracting magnet 25A in a portion other than the motor mounting plate 22 and provide a portion facing this as a magnetic body.

  As an example of the disk drive device, the type in which the disk-shaped recording medium 100 is held and chucked by the elastically deformable engaging claws 24c, 24c, 24c provided on the disk table 24 is shown. The present invention can also be applied to a type in which the disk-shaped recording medium 100 is chucked by being sandwiched between a disk table and a clamper positioned opposite to the disk table.

  The specific shapes and structures of the respective parts shown in the above-described best mode are merely examples of the implementation of the present invention, and the technical scope of the present invention is limited by these. It should not be interpreted in a general way.

2 to 10 show the best mode for carrying out the present invention, and this figure is a perspective view of an electronic apparatus. FIG. 1 is a perspective view showing a disk drive device and a disk-shaped recording medium. 1 is a schematic exploded perspective view showing a disk drive device with a part thereof omitted. 1 is a schematic perspective view showing a disk drive device with a part thereof omitted. It is a general | schematic expansion exploded perspective view which shows a disk drive unit. It is an enlarged side view of the 1st cam slider. It is an enlarged side view of a 2nd cam slider. FIG. 6 is a schematic side view showing a state in which the disk drive unit is urged away from the conveyance path of the disk-shaped recording medium. It is a conceptual diagram which shows the example by which the magnet for adsorption | suction is arrange | positioned at the motor mounting plate. It is a conceptual diagram which shows the example which used the magnet for a drive of a spindle motor as a magnet for adsorption | suction.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Disc-shaped recording medium, 1 ... Electronic device, 5 ... Disk drive apparatus, 10 ... Base surface part, 12 ... 1st cam slider, 13 ... Cam groove, 14 ... 2nd cam slider, 15 ... Cam groove, 16 DESCRIPTION OF SYMBOLS ... Disc drive unit, 17 ... Pickup base, 18 ... Optical pickup, 19 ... Motor unit, 20 ... Cam pin, 21 ... Cam pin, 22A ... Magnetic body, 23 ... Spindle motor, 24 ... Disc table, 25 ... Adsorption magnet, 10A ... Magnetic material, 25A ... Adsorption magnet, 25a ... Insertion part, 25b ... Flange part, 22a ... Magnet placement part, 26 ... Magnet placement hole, 25B ... Drive magnet

Claims (4)

A disk table on which a disk-shaped recording medium is mounted, a spindle motor that rotates the disk table, an optical pickup that is moved in the radial direction of the disk-shaped recording medium mounted on the disk table, and the optical pickup is recorded on the disk-shaped recording medium. A disk drive unit that has a pickup base that is movably supported in the radial direction of the medium, and that is movable in a substantially central axis direction of the disk table;
A base surface portion positioned opposite the disk drive unit on the opposite side of the disk table across the spindle motor;
A cam slider that has a cam groove and is moved in a predetermined direction to move the disk drive unit in a substantially central axis direction of the disk table;
The disk drive unit includes the spindle motor and the disk table, and a motor unit that is positioned facing the base surface portion is provided.
The disk drive unit is provided with a cam pin slidably engaged with a cam groove of the cam slider,
An adsorption magnet is arranged at one position of the base surface portion and the motor unit facing each other, and a magnetic body adsorbed by the adsorption magnet is arranged at the other position ,
Using the driving magnet as the attracting magnet by generating a leakage magnetic flux that leaks to the outside from the driving magnet disposed inside the spindle motor,
2. A disk drive device according to claim 1, wherein a magnetic body that is attracted to the driving magnet by the leakage magnetic flux is disposed on the base surface portion . A disk table on which a disk-shaped recording medium is mounted, a spindle motor that rotates the disk table, an optical pickup that is moved in the radial direction of the disk-shaped recording medium mounted on the disk table, and the optical pickup is recorded on the disk-shaped recording medium. A disk drive unit that has a pickup base that is movably supported in the radial direction of the medium, and that is movable in a substantially central axis direction of the disk table;
A base surface portion positioned opposite the disk drive unit on the opposite side of the disk table across the spindle motor;
A cam slider that has a cam groove and is moved in a predetermined direction to move the disk drive unit in a substantially central axis direction of the disk table;
The disk drive unit includes the spindle motor and the disk table, and a motor unit that is positioned facing the base surface portion is provided.
The disk drive unit is provided with a cam pin slidably engaged with a cam groove of the cam slider,
An adsorption magnet is arranged at one position of the base surface portion and the motor unit facing each other, and a magnetic body adsorbed by the adsorption magnet is arranged at the other position ,
A magnetic body is disposed at a position facing the motor unit in the base surface portion,
An adsorption magnet is disposed at a position facing the magnetic body in the motor unit,
A portion where the magnet for adsorption in the motor unit is arranged is provided as a magnet arrangement portion,
The magnet arrangement part is formed of a magnetic material,
Forming a magnet placement hole in the magnet placement section;
The adsorption magnet is constituted by an insertion portion inserted into the magnet arrangement hole and a flange portion projecting outward from one end portion of the insertion portion,
2. A disk drive device according to claim 1 , wherein the attraction magnet is arranged on the magnet arrangement portion in a state where the flange portion is located on the opposite side of the magnetic body with the magnet arrangement portion interposed therebetween . An electronic device including a disk drive device that records or reproduces information signals on a disk-shaped recording medium, or both,
A disk table on which a disk-shaped recording medium is mounted, a spindle motor that rotates the disk table, an optical pickup that is moved in the radial direction of the disk-shaped recording medium mounted on the disk table, and the optical pickup is recorded on the disk-shaped recording medium. A disk drive unit that has a pickup base that is movably supported in the radial direction of the medium, and that is movable in a substantially central axis direction of the disk table;
A base surface portion positioned opposite the disk drive unit on the opposite side of the disk table across the spindle motor;
A cam slider that has a cam groove and is moved in a predetermined direction to move the disk drive unit in a substantially central axis direction of the disk table;
The disk drive unit includes the spindle motor and the disk table, and a motor unit that is positioned facing the base surface portion is provided.
The disk drive unit is provided with a cam pin slidably engaged with a cam groove of the cam slider,
An adsorption magnet is arranged at one position of the base surface portion and the motor unit facing each other, and a magnetic body adsorbed by the adsorption magnet is arranged at the other position ,
Using the driving magnet as the attracting magnet by generating a leakage magnetic flux that leaks to the outside from the driving magnet disposed inside the spindle motor,
An electronic apparatus , wherein a magnetic body that is attracted to the driving magnet by the leakage magnetic flux is disposed on the base surface portion . An electronic device including a disk drive device that records or reproduces information signals on a disk-shaped recording medium, or both,
A disk table on which a disk-shaped recording medium is mounted, a spindle motor that rotates the disk table, an optical pickup that is moved in the radial direction of the disk-shaped recording medium mounted on the disk table, and the optical pickup is recorded on the disk-shaped recording medium. A disk drive unit that has a pickup base that is movably supported in the radial direction of the medium, and that is movable in a substantially central axis direction of the disk table;
A base surface portion positioned opposite the disk drive unit on the opposite side of the disk table across the spindle motor;
A cam slider that has a cam groove and is moved in a predetermined direction to move the disk drive unit in a substantially central axis direction of the disk table;
The disk drive unit includes the spindle motor and the disk table, and a motor unit that is positioned facing the base surface portion is provided.
The disk drive unit is provided with a cam pin slidably engaged with a cam groove of the cam slider,
An adsorption magnet is arranged at one position of the base surface portion and the motor unit facing each other, and a magnetic body adsorbed by the adsorption magnet is arranged at the other position ,
A magnetic body is disposed at a position facing the motor unit in the base surface portion,
An adsorption magnet is disposed at a position facing the magnetic body in the motor unit,
A portion where the magnet for adsorption in the motor unit is arranged is provided as a magnet arrangement portion,
The magnet arrangement part is formed of a magnetic material,
Forming a magnet placement hole in the magnet placement section;
The adsorption magnet is constituted by an insertion portion inserted into the magnet arrangement hole and a flange portion projecting outward from one end portion of the insertion portion,
The electronic apparatus according to claim 1 , wherein the attraction magnet is arranged on the magnet arrangement portion in a state where the flange portion is located on the opposite side of the magnetic body with the magnet arrangement portion interposed therebetween .

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