JP2011123933A - Disk chucking mechanism and disk drive device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain constant inertia of a spindle motor by securing stable driving force of the spindle motor. <P>SOLUTION: In a disk chucking mechanism including a disk table 5 on which a sheet-shaped disk recording medium 300 or a disk-like disk recording medium 400 is mounted and which is rotated by driving force of the spindle motor 4, a stabilizer 6 having an attraction surface opposed to one surface of the disk recording medium, a chucking cap 7 transferable between a bond position bonded to the stabilizer and a separated position separated from the stabilizer, a magnet 20 held by the disk table and a magnetic body 32 held by the chucking cap and attracted to the magnet when the disk table is transferred in a direction approaching the chucking cap, the chucking cap is held in the bond position when the sheet-shaped disk recording medium is mounted on the disk table and the chucking cap is held in the separated position when the disk like disk recording medium is mounted on the disk table. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to the technical field of a disk chucking mechanism and a disk drive device. Specifically, a technical field for achieving constant spindle motor inertia by securing a stable driving force of the spindle motor by attaching and detaching a chucking cap to the stabilizer according to the thickness of the disk recording medium mounted on the disk table. About.

  Some disk drive devices use a thin sheet-like disk recording medium as a disk recording medium, and can record and reproduce information signals on the sheet-like disk recording medium (for example, patents). Reference 1).

  In such a disk drive device that records and reproduces information signals to and from the sheet-like disk recording medium, a stabilizer (a floating stable disk) is provided in order to prevent the occurrence of surface deflection during rotation of the sheet-like disk recording medium. Is provided.

  The stabilizer is formed in a substantially disk shape substantially the same size as the sheet-like disk recording medium, has a plurality of air holes for generating negative pressure in the inner peripheral portion, and one surface is an adsorption surface .

  At the time of recording and reproduction of an information signal with respect to the sheet-like disk recording medium, the sheet-like disk recording medium mounted on the disk table is nipped and chucked between the chucking cap and the disk table.

  Thus, in a state where the sheet-like disk recording medium is chucked, the stabilizer attached to the chucking cap is rotated in a state where the suction surface is close to the sheet-like disk recording medium. When the chucking cap, the stabilizer, and the sheet-like disk recording medium are rotated along with the rotation of the disk table, air flows into the air holes of the stabilizer due to the rotation, and from the inner peripheral side between the adsorption surface and the sheet-like disk recording medium Negative pressure is generated by the flow of air toward the outer periphery. The sheet-like disk recording medium is brought into a state of being attracted to the stabilizer side through a slight gap by the generated negative pressure, and is rotated together with the stabilizer without causing the surface blur.

JP 2008-159118 A

  By the way, in the disk drive apparatus as described above, in addition to a sheet-like disk recording medium, a CD (Compact Disc) and a DVD (Digital Versatile Disc), which are generally used at a thickness of about 1.2 mm, are currently used. It is desired that a disc-shaped disk recording medium such as a Blu-ray Disc can be used, and that the sheet-shaped disc recording medium and the disc-shaped disc recording medium have compatibility. Since the disk-shaped disk recording medium is thicker than the sheet-shaped disk recording medium, its weight is also larger than that of the sheet-shaped disk recording medium.

  However, if the stabilizer rotates with the rotation of the disk table when recording or reproducing information signals to / from the disk-shaped disk recording medium in such a compatible disk drive device, the sheet-shaped disk recording medium On the other hand, the weight of the stabilizer is added to the spindle motor in addition to the heavy disk-shaped disk recording medium, and the load on the spindle motor is correspondingly increased and the inertia is increased.

  When the load on the spindle motor is increased, vibration is generated when the disk-shaped disk recording medium is rotated, or high-speed rotation is hindered.

  Further, if the load on the spindle motor is different between the recording / reproducing of the information signal with respect to the sheet-like disc recording medium and the recording / reproducing of the information signal with respect to the disc-like disc recording medium, the sheet-like disc recording medium and the disc-like disc In the servo control for the recording medium, it is necessary to perform different controls such as changing the set value of the servo constant, and the design becomes complicated.

  Therefore, the disk chucking mechanism and the disk drive device according to the present invention overcome the above-described problems and maintain a constant spindle motor inertia by ensuring a stable driving force of the spindle motor regardless of the chucked disk recording medium. The goal is to make it easier.

  In order to solve the above-described problems, the disk chucking mechanism has a spindle motor provided as a drive source and a sheet-shaped disk recording medium fixed to the motor shaft of the spindle motor or thicker than the sheet-shaped disk recording medium. A disk-shaped disk recording medium is mounted and rotated by the driving force of the spindle motor and moved together with the spindle motor in the central axis direction of the disk recording medium, and the disk table is mounted A stabilizer having a suction surface opposed to one surface of the disc recording medium that is made rotatable with the rotation of the disc table, and coupled to the stabilizer and integrated with the stabilizer and the disc table. And the coupling position rotated A chucking cap that is movable in the direction of the central axis of the disk recording medium between a separation position that is detached from the vilizer and rotated together with the disk table, and one of the disk table or the chucking cap And a magnetic body that is held on the other of the disk table or the chucking cap and is attracted to the magnet when the disk table is moved in the direction of the central axis toward the chucking cap. The disc table is moved in a direction approaching the chucking cap in the central axis direction, and the disc recording medium mounted on the disc table is sandwiched and held by the chucking cap and the disc table. The above When the sheet disk recording medium is mounted on a disk table, the chucking cap is held at the coupling position, and when the disk disk recording medium is mounted on the disk table, the chucking cap is It is designed to be held at the detached position.

  Therefore, in the chucking mechanism, the stabilizer is rotated integrally with the sheet-like disk recording medium when the sheet-like disk recording medium is chucked, and the stabilizer is rotated when the disk-like disk recording medium is chucked. The disc-shaped disk recording medium is rotated without being rotated.

  In the disk chucking mechanism described above, it is desirable to provide a pressing pin that is movable in the direction of the central axis and presses the chucking cap from the coupling position toward the disengagement position.

  By providing a pressing pin that presses the chucking cap from the coupling position toward the separation position, the chucking cap is moved from the coupling position toward the separation position by the pressing by the pressing pin and is detached from the stabilizer.

  In the disk chucking mechanism described above, the magnet or the magnetic body held by the chucking cap is closer to the disk table than the first holding position and the first holding position in the central axis direction. The magnet or the magnetic body is held at the first holding position when the sheet-like disk recording medium is mounted on the disk table, and is moved to the disk table. It is desirable that the magnet or the magnetic body is held at the second holding position when the plate-like disk recording medium is loaded.

  When the sheet-like disk recording medium is mounted on the disk table, the magnetic body or magnet is held in the first holding position, and when the disk-shaped disk recording medium is mounted on the disk table, the magnetic body or magnet is By being held at the holding position 2, the chucking with respect to the sheet-like disk recording medium and the chucking with respect to the disk-like disk recording medium can be performed with the same holding force.

  In the disk chucking mechanism described above, the magnet or the magnetic body that is movable in the central axis direction and is held by the chucking cap is pressed from the first holding position toward the second holding position. It is desirable to provide a pressing pin.

  By providing a pressing pin that presses the magnetic body or magnet from the first holding position toward the second holding position, the magnetic body or magnet moves from the first holding position to the second holding position by pressing with the pressing pin. Moved and held.

  In the disk chucking mechanism described above, the magnet or the magnetic body held by the chucking cap moves from the first holding position to the second holding position and from the coupling position of the chucking cap. It is desirable that the movement to the separation position is performed continuously.

  The operation time is shortened by continuously moving the magnetic body or magnet from the first holding position to the second holding position and moving the chucking cap from the coupling position to the separation position. Is done.

  In the disk chucking mechanism described above, the magnet or the magnetic body held by the chucking cap is pressed against the disk table so that the chucking cap is moved from the disengagement position to the coupling position. It is desirable.

  By causing the magnetic body or magnet to be pressed against the disk table so that the chucking cap is moved from the disengagement position to the coupling position, a dedicated mechanism for coupling the chucking cap to the stabilizer is not required.

  In the disk chucking mechanism described above, when the disk table is moved in a direction approaching the chucking cap in the central axis direction in a state where the disk recording medium is released from the disk table, It is desirable that the magnet or the magnetic body held by the chucking cap is pressed by the disk table and moved from the second holding position to the first holding position.

  The magnetic body or magnet is moved from the second holding position to the first holding position by being pushed by the disk table and moved from the second holding position to the first holding position. There is no need for a dedicated mechanism to do this.

  In the disk chucking mechanism described above, the magnet or the magnetic body held by the chucking cap moves from the second holding position to the first holding position, and the chucking cap moves away from the release position. It is desirable that the movement to the coupling position is continuously performed.

  The operation time is shortened by continuously moving the magnet or magnetic body from the second holding position to the first holding position and moving the chucking cap from the separating position to the coupling position. Is done.

  In order to solve the above-described problems, a disk drive device includes a disk transport mechanism that selectively transports a sheet-shaped disk recording medium and a disk-shaped disk recording medium that is thicker than the sheet-shaped disk recording medium, and a disk transport A disk chucking mechanism for chucking a sheet-shaped disk recording medium or a disk-shaped disk recording medium conveyed by the mechanism, a spindle motor provided as a drive source, and a sheet-shaped fixed to the motor shaft of the spindle motor A disk recording medium or a disk-shaped disk recording medium thicker than the sheet disk recording medium is mounted and rotated by the driving force of the spindle motor, and is integrated with the spindle motor in the direction of the center axis of the disk recording medium. Disk table to be moved, and A stabilizer having a suction surface facing one surface of the disk recording medium mounted on a disk table, and being rotatable with the rotation of the disk table; and the stabilizer coupled to the stabilizer and the disk table A chucking cap that is movable in the direction of the central axis of the disk recording medium between a coupling position rotated integrally with the disk and a separation position separated from the stabilizer and rotated integrally with the disk table. And a magnet held on one of the disc table or the chucking cap, and the disc table held on the other of the disc table or the chucking cap moves in a direction approaching the chucking cap in the central axis direction. When A disc that is attached to the disc table by the chucking cap and the disc table, the disc table being moved in a direction approaching the chucking cap in the central axis direction. When the medium is sandwiched and held, and when the sheet-shaped disk recording medium is mounted on the disk table, the chucking cap is held at the coupling position, and the disk-shaped disk recording medium is mounted on the disk table. The chucking cap is held in the disengaged position when

  Therefore, in the disk drive device, when the sheet-like disk recording medium is chucked, the stabilizer is rotated integrally with the sheet-like disk recording medium, and when the disk-like disk recording medium is chucked, the stabilizer is The disc-shaped disk recording medium is rotated without being rotated.

  The disk chucking mechanism of the present invention includes a spindle motor provided as a drive source, a sheet-shaped disk recording medium fixed to the motor shaft of the spindle motor, or a disk-shaped disk recording medium thicker than the sheet-shaped disk recording medium. A disk table mounted and rotated by the driving force of the spindle motor and moved integrally with the spindle motor in the central axis direction of the disk recording medium; and a disk recording medium mounted on the disk table. A stabilizer having an adsorbing surface facing one surface and being rotatable with the rotation of the disk table; and a coupling position coupled to the stabilizer and rotated integrally with the stabilizer and the disk table; Removed from the stabilizer A chucking cap that is movable in the direction of the central axis of the disk recording medium between a separation position that is rotated integrally with the disk table, and is held by one of the disk table or the chucking cap A magnet and a magnetic body that is held by the other of the disk table or the chucking cap and is attracted to the magnet when the disk table is moved in a direction approaching the chucking cap in the central axis direction; The disk table is moved in a direction approaching the chucking cap in the central axis direction, and the disk recording medium mounted on the disk table is sandwiched and held by the chucking cap and the disk table, and the disk table The above The chucking cap is held at the coupling position when a disc-shaped recording medium is loaded, and the chucking cap is held at the release position when the disc-shaped disc recording medium is loaded on the disc table. To be.

  Therefore, the stabilizer is not rotated when the disk-shaped disk recording medium is rotated, and the load on the spindle motor is not increased when the disk-shaped disk recording medium is rotated, so that an increase in inertia can be avoided. Regardless of the recording medium, the inertia of the spindle motor can be made constant by ensuring a stable driving force of the spindle motor.

  In the invention described in claim 2, there is provided a pressing pin which is movable in the direction of the central axis and presses the chucking cap from the coupling position toward the separation position.

  Therefore, the mechanism can be simplified.

  In the invention described in claim 3, the magnet or the magnetic body held by the chucking cap is closer to the disk table than the first holding position and the first holding position in the central axis direction. When the sheet-like disk recording medium is mounted on the disk table, the magnet or the magnetic body is held at the first holding position, and the disk table is movable. When the disc-shaped disk recording medium is mounted, the magnet or the magnetic body is held at the second holding position.

  Therefore, it is possible to perform chucking on the sheet-shaped disk recording medium and disking on the disk-shaped disk recording medium by the disk table and the chucking cap with the same holding force. The disk recording medium can be properly chucked.

  In the invention described in claim 4, the magnet or the magnetic body, which is movable in the central axis direction and is held by the chucking cap, is moved from the first holding position to the second holding position. A pressing pin is provided for pressing toward.

  Therefore, the mechanism can be simplified.

  In the invention described in claim 5, the movement of the magnet or the magnetic body held by the chucking cap from the first holding position to the second holding position and the chucking cap The movement from the coupling position to the separation position is continuously performed.

  Accordingly, it is possible to speed up the operation and simplify the mechanism.

  In the invention described in claim 6, the magnet or the magnetic body held by the chucking cap is pressed against the disk table, and the chucking cap is moved from the disengagement position to the coupling position. I am doing so.

Accordingly, a dedicated mechanism for coupling the chucking cap to the stabilizer is not required, and the mechanism can be simplified.

  In the invention described in claim 7, in a state where the mounting of the disk recording medium from the disk table is released, the disk table moves in a direction approaching the chucking cap in the central axis direction. Sometimes, the magnet or the magnetic body held by the chucking cap is pressed by the disc table and moved from the second holding position to the first holding position.

  Therefore, a dedicated mechanism for moving the magnetic body or the magnet from the second holding position to the first holding position is not required, and the mechanism can be simplified.

  In the invention described in claim 8, the movement of the magnet or the magnetic body held by the chucking cap from the second holding position to the first holding position and the chucking cap The movement from the detachment position to the coupling position is continuously performed.

  Accordingly, it is possible to speed up the operation and simplify the mechanism.

  The disk drive device of the present invention includes a disk transport mechanism for selectively transporting a sheet-shaped disk recording medium and a disk-shaped disk recording medium thicker than the sheet-shaped disk recording medium, and a sheet-shaped transported by the disk transport mechanism. A disk chucking mechanism for chucking a disk recording medium or a disk-shaped disk recording medium, and the disk chucking mechanism is a sheet motor fixed to a spindle motor provided as a drive source and a motor shaft of the spindle motor. A disk recording medium or a disk-shaped disk recording medium thicker than the sheet disk recording medium is mounted and rotated by the driving force of the spindle motor, and is integrated with the spindle motor in the direction of the center axis of the disk recording medium. Moved disk table A stabilizer having a suction surface facing one surface of the disk recording medium mounted on the disk table, the stabilizer being rotatable along with the rotation of the disk table, and the stabilizer coupled to the stabilizer and the stabilizer. A chuck that is movable in the direction of the central axis of the disk recording medium between a coupling position rotated integrally with the disk table and a detached position separated from the stabilizer and rotated integrally with the disk table. A king cap, a magnet held on one of the disk table or the chucking cap, and a direction in which the disk table held on the other of the disk table or the chucking cap approaches the chucking cap in the central axis direction When moved to The disc mounted on the disc table by the chucking cap and the disc table, the disc table being moved in a direction approaching the chucking cap in the central axis direction. When the recording medium is sandwiched and held, and the sheet-shaped disk recording medium is mounted on the disk table, the chucking cap is held at the coupling position, and the disk-shaped disk recording medium is mounted on the disk table. When being done, the chucking cap is held in the disengaged position.

  Therefore, the stabilizer is not rotated when the disk-shaped disk recording medium is rotated, and the load on the spindle motor is not increased when the disk-shaped disk recording medium is rotated, so that an increase in inertia can be avoided. Regardless of the recording medium, the inertia of the spindle motor can be made constant by ensuring a stable driving force of the spindle motor.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

  The best mode described below is a disc changer capable of selecting a desired disc recording medium from a plurality of disc recording media housed in a disc cartridge and recording and reproducing information signals. Is applied. In the best mode shown below, the disk chucking mechanism of the present invention is applied to a disk chucking mechanism provided in the disk changer described above.

  The applicable range of the disk drive device and the disk chucking mechanism of the present invention is not limited to the disk changer and the disk chucking mechanism provided on the disk changer, and a single disk recording medium is inserted to record information signals. The present invention can be applied to various disk drive devices such as a disk drive device that performs playback and a disk chucking mechanism provided in the disk drive device, and a disk chucking mechanism provided in the disk drive device.

  In the following description, for convenience of explanation, the direction in which the disk cartridge is inserted into the disk drive device is the rear, and the direction in which the disk cartridge is ejected from the disk drive device is the front.

  In addition, the up-down, front-back, left-right directions shown below are shown for convenience of explanation, and the present invention is not limited to these directions.

<Schematic configuration of disk drive device>
As shown in FIG. 1, the disk drive device 1 is configured by disposing required parts inside an outer casing 2. The outer casing 2 is formed in, for example, a rectangular parallelepiped shape that is long in the front-rear direction.

  The outer casing 2 is formed with a cartridge mounting portion 2a that is opened to the front where the first disk cartridge 100 or the second disk cartridge 200 is mounted. The cartridge mounting portion 2a is provided with a reading portion (not shown) having a sensor and the like.

  The first disk cartridge 100 can store a plurality of sheet-like disk recording media 300, 300,..., And the second disk cartridge 200 has a plurality of disk-like disk recording media 400, 400,.・ It can be stored.

  A shutter 3 for opening and closing the opening of the cartridge mounting portion 2a is rotatably supported on the outer casing 2.

  A plurality of operation units 2b, 2b,... And display units 2c and 2c are provided on the front surface of the outer casing 2. As the operation units 2b, 2b,..., For example, a play button, a record button, a stop button, a disc change button, an eject button, a power button, and the like are provided. The display units 2c and 2c include, for example, the type of disc recording medium to be reproduced and recorded, and the sheet-like disc recording medium 300 or the disc-like disc recording medium 400 for the first disc cartridge 100 or the second disc cartridge 200. The storage position and the like are displayed.

  The first disk cartridge 100 and the second disk cartridge 200 are each provided with a recognition unit (not shown). As the recognition unit, for example, a recognition hole, a recognition notch, a barcode, an RFID (Radio Frequency Identification), or the like is used.

  When the first disk cartridge 100 or the second disk cartridge 200 is inserted into the cartridge mounting unit 2a and mounted, the information of the recognition unit of the first disk cartridge 100 or the second disk cartridge 200 is read by the reading unit. It is done.

  Based on the information of the recognition unit read by the reading unit, which of the first disk cartridge 100 or the second disk cartridge 200 is mounted in the cartridge mounting unit 2a is displayed.

  A cartridge raising / lowering mechanism 500 is disposed below the cartridge mounting portion 2a on the front end side inside the outer casing 2. The first disk cartridge 100 and the second disk cartridge 200 mounted on the cartridge mounting portion 2a are moved in the vertical direction by the cartridge lifting mechanism 500.

  When the first disk cartridge 100 or the second disk cartridge 200 is moved in the vertical direction by the cartridge lifting mechanism 500, any one of the sheet-shaped disk recording medium 300 or the disk-shaped disk recording medium 400 stored therein is changed. Moved to extraction position.

  A disc chucking mechanism 600 is disposed on the rear end side in the outer casing 2.

  A disc transport mechanism 700 is disposed inside the outer casing 2 on the rear side of the cartridge lifting mechanism 500.

  In the disk drive device 1, the sheet-shaped disk recording medium 300 or the disk-shaped disk moved to the take-out position from the first disk cartridge 100 or the second disk cartridge 200 moved in the vertical direction by the cartridge lifting mechanism 500. The recording medium 400 is taken out by the disk transport mechanism 700. The sheet-shaped disk recording medium 300 or the disk-shaped disk recording medium 400 taken out by the disk transport mechanism 700 is transported backward by the disk transport mechanism 700 and chucked by the disk chucking mechanism 600.

  The sheet-like disc recording medium 300 or the disc-like disc recording medium 400 that has finished recording or reproducing the information signal is held by the disc transport mechanism 700 and transported forward, and again the first disc cartridge 100 or the second disc It is stored in the disk cartridge 200.

<Configuration of disk cartridge>
The first disc cartridge 100 is configured by arranging necessary parts in a storage case 101 opened rearward (see FIG. 2). The first disk cartridge 100 stores sheet-like disk recording media 300, 300,... Having a thickness of about 0.2 mm to 0.4 mm, for example.

  The storage case 101 has side surface portions 102, 102, a top surface portion 103, and a bottom surface portion 104, and a front surface portion is provided as a lid portion 105 so as to be rotatable. By rotating and opening the lid 105, the sheet-like disk recording media 300, 300,... Can be stored and taken out from the storage case 101.

  Retaining grooves 102a, 102a,... Opened on the inner surface side are formed on the side surface portions 102, 102 of the storage case 101 at regular intervals in the vertical direction. The pitch P1 of the holding grooves 102a, 102a,... Is 0.7 mm, for example, and the holding grooves 102a, 102a,.

  In the holding grooves 102a, 102a,..., For example, the address located at the lowermost side is 0 address, the addresses are addressed upward 1, address 2,... It is considered as a street address. The holding grooves 102a, 102a,... Of the same address formed in the left side surface portion 102 and the right side surface portion 102 are formed at the same height.

  The second disk cartridge 200 is configured by arranging necessary parts in a storage case 201 opened rearward (see FIG. 3). The second disc cartridge 200 accommodates disc-shaped disc recording media 400, 400,... Having a thickness of about 1.2 mm.

  The storage case 201 has side surface portions 202 and 202, a top surface portion 203, and a bottom surface portion 204, and the front surface portion is provided as an opening / closing lid 205 so as to be rotatable. By rotating and opening the opening / closing lid 205, the disk-shaped disk recording media 400, 400,... Can be stored and taken out from the storage case 201.

  Retaining grooves 202a, 202a,... Opened on the inner surface side are formed on the side surface portions 202, 202 of the storage case 201 at regular intervals vertically. The pitch P2 of the holding grooves 202a, 202a,... Is 2.1 mm, for example, and the holding grooves 202a, 202a,.

  In the holding grooves 202a, 202a,..., For example, the lowest address is 0 address, the upper address is 2 address, and the uppermost address is 3 address. Yes. The holding grooves 202a, 202a,... Of the same address formed on the left side 202 and the right side 202 are formed at the same height.

  The sheet-like disk recording media 300, 300,... Are loaded and loaded on the disk trays 301, 301,... And covered with the protective sheets 302, 302,. (See FIG. 2).

  The disc tray 301 has a thickness smaller than the vertical width of the holding groove 102 a formed in the first disc cartridge 100. The total thickness of the sheet-like disk recording medium 300, the disk tray 301, and the protective sheet 302 is smaller than the pitch P1 of the holding grooves 102a, 102a,.

  The sheet-like disc recording medium 300 is accommodated in the first disc cartridge 100 by holding the left and right sides of the disc tray 301 inserted into the holding grooves 102a and 102a, respectively.

  The disc-shaped disk recording media 400, 400,... Are mounted and loaded on the disk trays 401, 401,..., Respectively, and stored in the second disk cartridge 200 (see FIG. 3).

  The disc tray 401 has a thickness smaller than the vertical width of the holding groove 202 a formed in the second disc cartridge 200. The total thickness of the disk-shaped disk recording medium 400 and the disk tray 401 is made smaller than the pitch P2 of the holding grooves 202a, 202a,.

  The disc-shaped disc recording medium 400 is accommodated in the second disc cartridge 200 by the left and right sides of the disc tray 401 being inserted and held in the holding grooves 202a and 202a, respectively.

  When the disc-shaped disk recording medium 400 is mounted on the disk tray 401, the disk-shaped disk recording medium 400 is positioned by, for example, a plurality of ribs (not shown) provided on the disk tray 401.

  The first disk cartridge 100 and the second disk cartridge 200 have the same outer shape, and the inner space has the same vertical width, front-back width, and left-right width.

  The sheet-like disk recording media 300, 300,... Stored in the first disk cartridge 100 and the disk-shaped disk recording media 400, 400,. The disc is picked up by the disc 700 and conveyed to the disc loading position to be chucked by the disc chucking mechanism 600.

  In addition, the sheet-like disk recording medium 300 and the disk-like disk recording medium 400 that have finished recording or reproducing the information signal are conveyed from the disk mounting position by the disk conveying mechanism 700 to be the first disk cartridge 100 or the second disk. It is stored in the cartridge 200.

  As described above, the pitch of the holding grooves 102a, 102a,... Formed in the first disk cartridge 100 is P1, and the holding grooves 202a, 202a,. When the pitch is P2, the first disk cartridge 100 and the second disk cartridge 200 are configured to satisfy the condition of P1 = N × P2. N is a natural number.

  In addition, the number of sheet-shaped disk recording media 300, 300,... Stored in the first disk cartridge 100 is N of the number of disk-shaped disk recording media 400, 400,. Have been doubled.

  For example, in the first disc cartridge 100 and the second disc cartridge 200, P1 = 0.7 mm, P2 = 2.1 mm, N = 3, and the sheet-like disc recording media 300, 300,. The number of stored sheets is nine, and the number of stored disk-shaped disk recording media 400, 400,... For the second disk cartridge 200 is three.

  When the first disk cartridge 100 and the second disk cartridge 200 satisfy the above-described conditions, the mechanical compatibility between them can be ensured.

  Therefore, for example, when the second disk cartridge 200 is mounted on the cartridge mounting portion 2a, the position of the disk-shaped disk recording medium 400, 400,. Can be matched to the position of any one of the sheet-like disk recording media 300, 300,. Further, the above-described take-out position where the sheet-like disc recording medium 300 or the disc-like disc recording medium 400 is taken out from the first disc cartridge 100 or the second disc cartridge 200 by the disc transport mechanism 700 is referred to as the sheet-like disc recording medium 300. And the disc-shaped disk recording medium 400 can be easily set at a common position. Furthermore, it is possible to simplify the control related to the lifting / lowering operation of the first disk cartridge 100 and the second disk cartridge 200 by the cartridge lifting / lowering mechanism 500.

  In the disk drive device 1, the following address reading control is performed for the sheet-shaped disk recording medium 300 and the disk-shaped disk recording medium 400 stored in the first disk cartridge 100 and the second disk cartridge 200, respectively. Is called.

  The address of the holding grooves 102a, 102a,... Of the first disk cartridge 100 is I, and the address of the holding grooves 202a, 202a,. Both I and J are integers of 0 or more. For example, as described above, I = 0 to 8, J = 0 to 2, and the address of the holding groove 102a, 102a positioned at the lowest position of the first disk cartridge 100 is I = 0, the second disk cartridge. The address of the holding grooves 202a and 202a located at the lowest position of 200 is J = 0.

  At this time, I = N × J read-out control is performed. By performing such address replacement control, the control of the cartridge lifting mechanism 500 with respect to the first disk cartridge 100 and the second disk cartridge 200 and the first disk cartridge 100 and the second disk cartridge 200 by the disk transport mechanism 700 are controlled. The sheet-shaped disk recording medium 300 and the disk-shaped disk recording medium 400 can share control for the take-out operation and the storage operation of the sheet-shaped disk recording medium 300 and the disk-shaped disk recording medium 400 with respect to the disk cartridge 200. Become.

<Configuration of disc chucking mechanism>
The disk chucking mechanism 600 includes a spindle motor 4, a disk table 5, a stabilizer 6, and a chucking cap 7 (see FIG. 4).

  The spindle motor 4 has a motor shaft 4 a extending vertically and is attached to the mounting chassis 8. The spindle motor 4 has a motor shaft 4 a protruding upward from the mounting chassis 8.

  The mounting chassis 8 is provided with supported pins 8a and 8a protruding sideways in the front-rear direction. The mounting chassis 8 is supported by the chassis support plate 9 so as to be movable in the vertical direction.

  Guide holes 9a, 9a are formed in the chassis support plate 9 so as to be separated from each other in the front-rear direction, and the guide holes 9a, 9a are formed to extend vertically. The supported pins 8a and 8a of the mounting chassis 8 are slidably supported in the guide holes 9a and 9a of the chassis support plate 9, respectively. Accordingly, the mounting chassis 8 is moved up and down integrally with the spindle motor 4 by the supported pins 8a and 8a being guided by the guide holes 9a and 9a, respectively.

  The supported pins 8a and 8a of the mounting chassis 8 are inserted through the guide holes 9a and 9a of the chassis support plate 9, respectively.

  The supported pins 8a and 8a of the mounting chassis 8 are slidably supported by a cam plate 10 that is movable in the front-rear direction.

  The cam plate 10 is provided with a transmission gear 11 extending forward and backward. Cam grooves 12 and 12 are formed in the cam plate 10 so as to be separated from each other in the front-rear direction. The cam groove 12 includes a lower horizontal portion 12a extending in the front-rear direction, a lower inclined portion 12b continuous to one end of the lower horizontal portion 12a, an intermediate horizontal portion 12c continuous to the upper end of the lower horizontal portion 12b, and the The upper horizontal portion 12d is connected to one end of the middle horizontal portion 12c, and the upper horizontal portion 12e is connected to the upper end of the upper inclined portion 12d.

  When the cam plate 10 is positioned at the rear end in the moving direction, the supported pins 8a, 8a of the mounting chassis 8 are engaged with the lower horizontal portions 12a, 12a of the cam grooves 12, 12 in the cam plate 10, respectively. The chassis 8 and the spindle motor 4 are located at the lower end in the moving direction.

  When the cam plate 10 is positioned at the center in the moving direction, the supported pins 8a and 8a of the mounting chassis 8 are engaged with the cam horizontal portions 12c and 12c of the cam grooves 12 and 12 in the cam plate 10, respectively. 8 and the spindle motor 4 are positioned at the upper and lower centers in the moving direction.

  When the cam plate 10 is positioned at the front end in the moving direction, the supported pins 8a and 8a of the mounting chassis 8 are engaged with the upper horizontal portions 12e and 12e of the cam grooves 12 and 12 in the cam plate 10, respectively. The spindle motor 4 is positioned at the upper end in the moving direction.

  Below the cam plate 10, a first position detection switch 13, a second position detection switch 14, and a third position detection switch 15 are arranged apart from each other in the front-rear direction. The first position detection switch 13, the second position detection switch 14, and the third position detection switch 15 are operated by the cam plate 10 moved in the front-rear direction.

  When the cam plate 10 is positioned at the rear end, only the first position detection switch 13 is operated and turned on, and it is detected that the mounting chassis 8 and the spindle motor 4 are positioned at the lower end.

  When the cam plate 10 is positioned at the front and rear centers, the first position detection switch 13 and the second position detection switch 14 are operated to turn on, respectively, and the mounting chassis 8 and the spindle motor 4 are positioned at the upper and lower centers. Is detected.

  When the cam plate 10 is positioned at the front end, the first position detection switch 13, the second position detection switch 14, and the third position detection switch 15 are operated to turn on, respectively, and the mounting chassis 8 and the spindle motor 4 are turned on. Is located at the upper end.

  The cam plate 10 is moved in the front-rear direction by the driving force of the driving motor 16. A pulley 17 is fixed to the motor shaft 16 a of the drive motor 16, and the pulley 17 and a geared pulley 18 are connected by a belt 19.

  The pulley 18 with gear has a pulley portion 18a and a gear portion 18b provided at the center of the pulley portion 18a, and a belt 19 is wound around the pulley portion 18a. The gear portion 18 b of the pulley 18 with gear is meshed with the transmission gear 11 of the cam plate 10.

  When the drive motor 16 is rotated, the driving force is transmitted to the cam plate 10 via the pulley 17, the belt 19 and the geared pulley 18, and the transmission gear 11 is sent in the front-rear direction according to the rotation direction of the drive motor 16. As a result, the cam plate 10 is moved in the front-rear direction. When the cam plate 10 is moved in the front-rear direction, the engagement position of the supported pins 8a, 8a with respect to the cam grooves 12, 12 in the mounting chassis 8 is changed as described above, so that the mounting chassis 8 and the spindle motor 4 are integrated. And moved up and down.

  The disk table 5 is fixed to the motor shaft 4 a of the spindle motor 4. The disk table 5 includes a disk-shaped table portion 5a and a centering protrusion 5b protruding upward from the center portion of the table portion 5a.

  A magnet 20 is embedded in a position near the upper end of the centering protrusion 5b. A magnetic body may be attached to the center ring protrusion 5b. A magnetic circuit (not shown) is formed on the centering protrusion 5b.

  The disk table 5 is moved in the vertical direction as the mounting chassis 8 and the spindle motor 4 are moved in the vertical direction. The disk table 5 is in a disk loading position which is a lower moving end when the spindle motor 4 is positioned at the lower end. The disk table 5 is in the first chucking position, which is the upper moving end when the spindle motor 4 is positioned at the upper end, and the upper and lower positions when the spindle motor 4 is positioned in the upper and lower center. It is in the second chucking position which is an intermediate position.

  A support plate 21 facing the vertical direction is disposed above the disk table 5. The support plate 21 is formed with a support hole 21a penetrating vertically.

  The stabilizer 6 is rotatable with respect to the support plate 21. The stabilizer 6 includes a substantially cylindrical shaft portion 22 extending vertically, a flange portion 23 projecting outward from the upper end portion of the shaft portion 22, and a suction portion 24 projecting outward from the lower end portion of the shaft portion 22. Are integrally formed of a metal material.

  In the stabilizer 6, the outer diameter of the shaft portion 23 is smaller than the diameter of the support hole 23 a, the outer diameters of the flange portion 23 and the suction portion 24 are larger than the diameter of the support hole 21 a, and the outer diameter of the suction portion 24 is the flange portion 23. It is larger than the outer diameter. In the stabilizer 6, the distance between the flange portion 23 and the suction portion 24 is larger than the thickness of the support plate 23.

  The upper half of the inner peripheral surface of the shaft portion 22 is formed as a regulating surface 22a (see FIG. 5). The regulating surface 22a is formed in a curved shape that is concave inward. The shaft portion 22 is formed with a stopper surface 22b that faces the lower end of the regulating surface 22a and faces downward. The shaft portion 22 is formed with air holes 22c, 22c,... Penetrating up and down at equal intervals in the circumferential direction.

  The lower surface of the suction portion 24 is formed as a suction surface 24a.

  In the stabilizer 6, the shaft portion 22 is inserted through the support hole 21 a of the support plate 21, the flange portion 23 is positioned above the support plate 21, and the suction portion 24 is positioned below the support plate 21.

  The chucking cap 7 is formed in a substantially cylindrical shape extending vertically, and a portion excluding the upper end portion is provided as the main body portion 25 (see FIGS. 4 and 5). An outer flange portion 26 projecting outward from the main body portion 25 and an inner flange portion 27 projecting inward from the main body portion 25 are provided at the upper end portion of the chucking cap 7.

  The main body 25 is formed with a first stopper surface 25a facing upward on the inner peripheral portion, a second stopper surface 25b facing upward on the outer peripheral portion, and the first stopper surface 25a being the second stopper. It is located above the surface 25b. A space between the first stopper surface 25a and the inner flange portion 27 in the main body portion 25 is formed as a moving space 25c.

  On the inner peripheral portion of the main body 25, first latches 28, 28,... The first latches 28, 28,... Are arranged at positions corresponding to the center in the vertical direction of the moving space 25c. The first latch 28 is movable in a direction away from and in contact with the center of the main body 25 and is biased by a spring 29 in a direction approaching the center of the main body 25 (see FIG. 5).

  On the outer periphery of the main body 25, second latches 30, 30,... Are spaced apart in the circumferential direction at positions on the upper side of the second stopper surface 25b. The second latch 30 is movable in a direction away from and in contact with the center of the main body 25, and is biased by a spring 31 in a direction away from the center of the main body 25.

  The chucking cap 7 is movable in the vertical direction with respect to the stabilizer 6. The chucking cap 7 is coupled to the stabilizer 6 between a coupling position where the chucking cap 7 is rotated together with the stabilizer 6 and a separating position where the stabilizer 6 is detached. Moved.

  The chucking cap 7 is held at the coupling position when the second latches 30, 30,... Engage with the regulating surface 22 a of the stabilizer 6. In the coupling position, the stopper surface 22b of the stabilizer 6 and the second stopper surface 25b of the chucking cap 7 are in contact with each other, and the upward movement of the chucking cap 7 with respect to the stabilizer 6 is restricted.

  When a downward moving force is applied to the chucking cap 7 at the coupling position, the second latches 30, 30,... Are slid on the regulating surface 22a, and the second latches 30, 30,. Is removed downward from the regulating surface 22a, whereby the chucking cap 7 is detached from the stabilizer 6 and moved to the disengaged position. In the detached position, the upper surface of the stabilizer 6 and the lower surface of the outer flange portion 26 of the chucking cap 7 are in contact with each other, and the downward movement of the chucking cap 7 with respect to the stabilizer 6 is restricted.

  Conversely, when an upward movement force is applied to the chucking cap 7 at the disengaged position, the second latches 30, 30,... Are moved inward in contact with the lower edge of the restriction surface 22a, and then Thus, the chucking cap 7 is moved to the coupling position by being slid and engaged with the regulating surface 22 a and coupled to the stabilizer 6.

  A magnetic body 32 is supported inside the chucking cap 7 so as to be movable in the vertical direction. A magnet may be supported inside the chucking cap 7. The magnetic body 32 is formed, for example, in a columnar shape, and is moved in the vertical direction between the first holding position and the second holding position with reference to the first latches 28, 28,... In the moving space 25c. The

  The magnetic body 32 is held at the first holding position by the outer peripheral edge of the lower surface engaging the first latches 28, 28,. In the first holding position, the outer peripheral portion of the upper surface of the magnetic body 32 and the lower surface of the inner flange portion 27 of the chucking cap 7 are in contact with each other, and the upward movement of the magnetic body 32 relative to the chucking cap 7 is restricted.

  When a downward moving force is applied to the magnetic body 32 at the first holding position, the outer peripheral surface of the magnetic body 32 is slid by the first latches 28, 28,. , 28,... Are displaced outward against the biasing force of the springs 29, 29,. The outer peripheral portion of the lower surface of the magnetic body 32 is brought into contact with the first stopper surface 25a of the chucking cap 7 and moved to the second holding position. In the second holding position, the outer peripheral edge of the upper surface of the magnetic body 32 and the first latches 28, 28,... Are in contact with each other, and the upward movement of the magnetic body 32 relative to the chucking cap 7 is restricted.

  Conversely, when an upward movement force is applied to the magnetic body 32 in the second holding position, the outer peripheral surface of the magnetic body 32 is slid by the first latches 28, 28,. Are latched inward by the biasing force of the springs 29, 29,. The outer peripheral portion of the upper surface of the magnetic body 32 contacts the lower surface of the inner flange portion 27 of the chucking cap 7 and is moved to the first holding position.

  Above the chucking cap 7, a support chassis 33 that faces in the vertical direction is disposed, and the support chassis 33 is formed with a pin support hole 33a penetrating vertically. In the support chassis 33, a pressing pin 34 is supported in a pin support hole 33a so as to be movable in the vertical direction.

  The pressing pin 34 includes a disk-shaped operated portion 34a and a pressing shaft portion 34b protruding downward from the central portion of the operated portion 34a. A biasing spring 35 is supported on the pressing shaft 34 b of the pressing pin 34, and the pressing pin 34 is biased upward by the biasing spring 35.

  A part of the pressing shaft 34 b of the pressing pin 34 is inserted through the pin support hole 33 a of the support chassis 33 and protrudes downward.

  The pressing pin 34 is moved in the vertical direction by the pin driving mechanism 36. The pin drive mechanism 36 includes a motor 37, a small pulley 38, a transmission pulley 39, a belt 40, and a cam gear 41 (see FIGS. 4 and 6).

  The motor 37 is fixed to the upper surface of the support chassis 33. A small pulley 38 is fixed to the motor shaft 37 a of the motor 37.

  The transmission pulley 39 includes a pulley portion 39a and a gear portion 39b provided at the center of the pulley portion 39a, and is rotatably supported by the support chassis 33 via a support shaft 42.

  The belt 40 is wound around a small pulley 38 fixed to the motor shaft 37 a of the motor 37 and a pulley portion 39 a of the transmission pulley 39 to connect the motor 37 and the transmission pulley 39.

  The cam gear 41 is rotatably supported by the support chassis 33 via the rotation shaft 43. The cam gear 41 includes a flat gear portion 44 and a cam portion 45 provided on the lower surface of the flat gear portion 44.

  As shown in FIGS. 4 and 6, the cam portion 45 has a first cam surface 45a, a second cam surface 45b, and a third cam surface 45c having different heights in the circumferential direction of the flat gear portion 44. ing. The first cam surface 45a is at the highest position, the second cam surface 45b is at an intermediate position, and the third cam surface 45c is at the lowest position.

  The cam portion 45 is brought into sliding contact with the upper surface of the operated portion 34a of the pressing pin 34, and the pressing pin 34 is moved in the vertical direction according to the contact position of the operated portion 34a with the cam portion 45. Accordingly, the pressing pin 34 is moved to the upper moving end in a state where the operated portion 34a is in contact with the first cam surface 45a, and is in an intermediate position in a state in which the operated portion 34a is in contact with the second cam surface 45b. And the moved portion 34a is moved to the lower moving end in a state where the operated portion 34a is in contact with the third cam surface 45c.

  As shown in FIG. 6, a first detection hole 44a, a second detection hole 44b, and a third detection hole 44c are formed at predetermined positions in the spur gear portion 44 of the cam gear 41, respectively. The first detection hole 44a, the second detection hole 44b, and the third detection hole 44c are formed at positions separated from each other in the circumferential direction. The first detection hole 44a, the second detection hole 44b, and the third detection hole 44c are sequentially formed from the side closer to the center of the flat gear portion 44.

  Above the cam gear 41, a first switch 46, a second switch 47, and a third switch 48 are arranged in the radial direction of the flat gear portion 44 in order from the side closer to the center.

  When the first detection hole 44a is positioned directly below the first switch 46 by the rotation of the cam gear 41, only the first switch 46 is turned off. At this time, it is detected that the first cam surface 45a of the cam portion 45 is in contact with the actuated portion 34a of the pressing pin 34, and the pressing pin 34 is positioned at the upper moving end.

  When the second detection hole 44b is positioned directly below the second switch 47 by the rotation of the cam gear 41, only the second switch 47 is turned off. At this time, it is detected that the second cam surface 45b of the cam portion 45 is in contact with the actuated portion 34a of the pressing pin 34, and the pressing pin 34 is positioned in the middle between the upper and lower sides.

  When the third detection hole 44c is positioned directly below the third switch 48 by the rotation of the cam gear 41, only the third switch 48 is turned off. At this time, it is detected that the third cam surface 45c of the cam portion 45 is in contact with the operated portion 34a of the pressing pin 34, and the pressing pin 34 is positioned at the lower moving end.

<Operation of disc chucking mechanism>
The operation of the disk chucking mechanism 600 will be described below (see FIGS. 8 to 17).

  First, an initial state before the disk chucking mechanism 600 chucks the sheet-like disk recording medium 300 and the disk-like disk recording medium 400 will be described (see FIG. 8).

  In the initial state, the spindle motor 4 is positioned at the lower end in the moving direction, and the disk table 5 is at the disk loading position where the moving table is the lower moving end.

  The stabilizer 6 is in a state in which the lower surface of the flange portion 23 is in contact with the upper surface of the support plate 21 and is positioned at the lower end in the moving range.

  The chucking cap 7 is in the coupling position, and the second latches 30, 30,... Are engaged with the regulation surface 22 a of the stabilizer 6. At this time, the stopper surface 22b of the stabilizer 6 and the second stopper surface 25b of the chucking cap 7 are in contact with each other, and the upward movement of the chucking cap 7 with respect to the stabilizer 6 is restricted.

  The magnetic body 32 is held by the chucking cap 7 at the first holding position.

  The pressing pin 34 is positioned at the upper moving end with the operated portion 34 a in contact with the first cam surface 45 a of the cam portion 45 in the cam gear 41.

  In the initial state described above, as shown in FIG. 8, when the sheet-like disk recording medium 300 is taken out from the first disk cartridge 100 by the disk transport mechanism 700 and transported to the disk mounting position, the drive motor 16 rotates. The spindle motor 4 and the disk table 5 are integrally moved upward.

  The centering protrusion 5b is inserted into the center hole 300a of the sheet-like disk recording medium 300 by the upward movement of the disk table 5, and the sheet-like disk recording medium 300 is mounted on the table part 5a.

  The disk table 5 is moved further upward to the first chucking position, and the center ring protrusion 5b is inserted into the shaft portion 22 of the chucking cap 7 and held at the first holding position. Is attracted to the magnet 20. When the magnetic body 32 is attracted to the magnet 20, the inner peripheral portion of the sheet-like disk recording medium 300 is sandwiched between the shaft portion 22 of the chucking cap 7 and the table portion 5a of the disk table 5, and the sheet-like disk recording medium Chucking 300 is completed (see FIG. 9).

  In the state where the sheet-shaped disk recording medium 300 is chucked, the disk table 5 pushes the chucking cap 7 and the stabilizer 6 upward to a predetermined position, and the stabilizer 6 is separated from the support plate 21. Therefore, the stabilizer 6 can be rotated without contacting the support plate 21.

  A slight gap, for example, a gap of about 0.1 mm, is formed between the adsorption surface 24 a of the stabilizer 6 and the upper surface of the sheet-like disk recording medium 300, and between the adsorption surface 24 a and the sheet-like disk recording medium 300. An air flow from the inner peripheral side toward the outer peripheral side is generated.

  The chucked sheet-like disk recording medium 300 is rotated integrally with the disk table 5, the stabilizer 6 and the chucking cap 7 by the rotation of the disk table 5 accompanying the rotation of the spindle motor 4, and the information signal is recorded or reproduced. Is done. At this time, air flows into the air holes 22c, 22c,... Of the stabilizer 6, and a negative pressure is generated between the suction surface 24a and the sheet-like disk recording medium 300 due to the flow of air from the inner peripheral side to the outer peripheral side. The sheet-like disk recording medium 300 is rotated in a parallel state along the suction surface 24a by the generated negative pressure without causing a surface blur.

  When the recording or reproduction of the information signal with respect to the sheet-like disk recording medium 300 is completed and the rotation of the spindle motor 4 is stopped, the spindle motor 4 and the disk table 5 are integrally moved downward by the rotation of the drive motor 16. Go. The stabilizer 6 and the chucking cap 7 are moved downward by the downward movement of the spindle motor 4 and the disk table 5, and the stabilizer 6 is brought into a state where the lower surface of the flange portion 23 is in contact with the upper surface of the support plate 21. The chucking cap 7 returns to the initial state.

  By moving the spindle motor 4 and the disk table 5 downward, the sheet-like disk recording medium 300 is moved downward to the disk mounting position and held by the disk transport mechanism 700.

  The spindle motor 4 and the disk table 5 are further moved downward, the spindle motor 4 is positioned at the lower end in the moving direction, and the disk table 5 is moved to the disk loading position which is the lower moving end to return to the initial state.

  The sheet-like disk recording medium 300 held by the disk transport mechanism 700 at the disk mounting position is transported by the disk transport mechanism 700 and stored in the first disk cartridge 100.

  On the other hand, in the above-described initial state, as shown in FIG. 10, when the disc-shaped disk recording medium 400 is taken out from the second disk cartridge 200 by the disk transport mechanism 700 and transported to the disk mounting position, the motor 37 The pressing pin 34 is moved downward by the rotation. At this time, the cam gear 41 is rotated with the rotation of the motor 37, and the first cam surface 45a, the second cam surface 45b, and the third cam surface 45c are in contact with the operated portion 34a of the pressing pin 34 in order.

  When the pressing pin 34 is moved downward, the pressing shaft portion 34b of the pressing pin 34 is inserted into the shaft portion 22 of the chucking cap 7, and the magnetic body 32 held at the first holding position is moved to the pressing shaft. It is pressed downward by the part 34b. The magnetic body 32 is moved downward by the pressing of the pressing pin 34, and the outer peripheral surface of the magnetic body 32 is slid by the first latches 28, 28,..., And the first latches 28, 28,. It is displaced outward against the urging force of the springs 29, 29,.

  When the upper edge of the magnetic body 32 is positioned below the first latches 28, 28,..., The first latches 28, 28,. Are displaced inward, and the upper edge of the magnetic body 32 is engaged with the first latches 28, 28,... And held at the second holding position (see FIG. 11). The outer periphery of the lower surface of the magnetic body 32 is in contact with the first stopper surface 25 a of the chucking cap 7 at the second holding position.

  The pressing pin 34 is further moved downward by the rotation of the motor 37 and presses the magnetic body 32 downward. The first stopper surface 25a is pressed downward by the downward pressing against the magnetic body 32 by the pressing pin 34.

  The chucking cap 7 is moved downward integrally with the magnetic body 32 by the pressing of the pressing pin 34 against the magnetic body 32, and the second latches 30, 30,... Slide against the regulating surface 22 a of the stabilizer 6. The second latches 30, 30,... Are displaced inward against the biasing force of the springs 31, 31,.

  When the second latches 30, 30,... Are positioned corresponding to the stopper surfaces 22 b of the stabilizer 6, the second latches 30, 30,. , And the chucking cap 7 is detached from the stabilizer 6. The chucking cap 7 is detached from the stabilizer 6 and further moved downward, and the outer flange portion 26 is brought into contact with the upper surface of the shaft portion 22 of the stabilizer 6 so that the downward movement is stopped and moved to the separation position (see FIG. 12). ). When the chucking cap 7 is moved to the disengaged position, the cam gear 41 has the third cam surface 45 c in contact with the operated portion 34 a of the pressing pin 34.

  When the chucking cap 7 is moved to the disengagement position, the drive motor 16 is subsequently rotated, and the spindle motor 4 and the disk table 5 are integrally moved upward by the rotation of the drive motor 16.

  The centering protrusion 5b is inserted into the center hole 400a of the disk-shaped disk recording medium 400 by the upward movement of the disk table 5, and the disk-shaped disk recording medium 400 is mounted on the table section 5a.

  The disk table 5 is moved further upward to the second chucking position, and the center ring protrusion 5b is inserted into the shaft portion 22 of the chucking cap 7 and held at the second holding position. Is attracted to the magnet 20. When the magnetic body 32 is attracted to the magnet 20, the inner peripheral portion of the disk-shaped disk recording medium 400 is sandwiched between the shaft section 22 of the chucking cap 7 and the table section 5a of the disk table 5, and the disk-shaped disk. Chucking with respect to the recording medium 400 is completed (see FIG. 13).

  In the state where the disk-shaped disk recording medium 400 is chucked, the chucking cap 7 is detached from the stabilizer 6, and the chuck table 7 is pushed up to a predetermined position by the disk table 5 so that the chucking cap 7 is chucked. The outer flange portion 26 of the king cap 7 is spaced upward from the stabilizer 6. Therefore, the chucking cap 7 can be rotated without being in contact with the stabilizer 6.

  The disk-shaped disc recording medium 400 that has been chucked is rotated together with the disc table 5 and the chucking cap 7 by the rotation of the disc table 5 as the spindle motor 4 rotates, and information signals are recorded or reproduced. Is called.

  When the recording or reproduction of the information signal with respect to the disk-shaped disk recording medium 400 is completed and the rotation of the spindle motor 4 is stopped, the spindle motor 4 and the disk table 5 are moved together by the rotation of the drive motor 16. To go. The chucking cap 7 is moved downward by the downward movement of the spindle motor 4 and the disk table 5, and the chucking cap 7 is in a state where the lower surface of the outer flange portion 26 is in contact with the upper surface of the stabilizer 6.

  Due to the downward movement of the spindle motor 4 and the disk table 5, the disk-shaped disk recording medium 400 is moved downward to the disk mounting position and held by the disk transport mechanism 700.

  The spindle motor 4 and the disk table 5 are further moved downward, the spindle motor 4 is positioned at the lower end in the moving direction, and the disk table 5 is moved to the disk loading position which is the lower moving end to return to the initial state.

  The disc-shaped disk recording medium 400 held by the disk transport mechanism 700 at the disk mounting position is transported by the disk transport mechanism 700 and stored in the second disk cartridge 200.

  When the disk-shaped disk recording medium 400 is transported from the disk loading position to the second disk cartridge 200 by the disk transport mechanism 700, the first cam surface 45 a of the cam gear 41 is pressed by the pressing pin 34 by the rotation of the motor 37. It is rotated to a position in contact with the acted part 34a. Accordingly, the pressing pin 34 is moved upward to return to the initial state (see FIG. 14).

  Subsequently, the drive motor 16 is rotated again, and the spindle motor 4 and the disk table 5 are integrally moved upward again by the rotation of the drive motor 16.

  Due to the upward movement of the disk table 5, the centering protrusion 5b is inserted into the shaft portion 22 of the chucking cap 7 and presses the magnetic body 32 held at the second holding position upward. When the magnetic body 32 is pressed upward by the center ring protrusion 5b, the chucking cap 7 is moved upward together with the magnetic body 32. When the chucking cap 7 is moved upward together with the magnetic body 32, the second latches 30, 30,... Are in contact with the stopper surface 22 b of the stabilizer 6 and the chucking cap 7 and the magnetic body 32. And the stabilizer 6 are moved upward together. As for the stabilizer 6, the adsorption | suction part 24 touches the lower surface of the support plate 21, and an upward movement is stopped (refer FIG. 15).

  The magnetic body 32 is further pressed upward by the center ring protrusion 5 b of the disk table 5, and the magnetic body 32 is moved upward with respect to the chucking cap 7. When the magnetic body 32 is moved upward with respect to the chucking cap 7, the outer peripheral surface of the magnetic body 32 is slid by the first latches 28, 28,..., And the first latches 28, 28,. Are displaced outward against the biasing force of the springs 29, 29,.

  When the lower edge of the magnetic body 32 is positioned above the first latches 28, 28,..., The first latches 28, 28,. Displaced inward, the lower edge of the magnetic body 32 is engaged with the first latches 28, 28,... And held in the first holding position (see FIG. 16).

  The magnetic body 32 is further pressed upward by the center ring protrusion 5b of the disk table 5, and the chucking cap 7 and the magnetic body 32 are integrally moved and moved upward with respect to the stabilizer 6. The second latches 30, 30, .. Is engaged with the regulating surface 22a, and the chucking cap 7 is coupled to the stabilizer 6 again to return to the coupling position (see FIG. 17). When the chucking cap 7 is coupled to the stabilizer 6, the second stopper surface 25 b of the chucking cap 7 is in contact with the stopper surface 22 b of the stabilizer 6.

  When the chucking cap 7 is coupled to the stabilizer 6, the drive motor 16 is reversed, and the spindle motor 4 and the disk table 5 are united again and moved downward. As the spindle motor 4 and the disk table 5 move downward, the chucking cap 7, the magnetic body 32, and the stabilizer 6 are moved together and the lower surface of the flange portion 23 of the stabilizer 6 contacts the upper surface of the support plate 21. The stabilizer 6 and the chucking cap 7 are returned to the initial state.

  The spindle motor 4 and the disk table 5 are further moved downward, the spindle motor 4 is positioned at the lower end in the moving direction, and the disk table 5 is moved to the disk loading position, which is the lower moving end (see FIG. 18). ).

  In the above example, the magnetic body 32 is first moved from the first holding position to the second holding position by the downward movement of the pressing pin 34, and the chucking cap 7 is later detached from the stabilizer 6. showed that. However, conversely, by the downward movement of the pressing pin 34, the chucking cap 7 is first detached from the stabilizer 6, and the magnetic body 32 is moved from the first holding position to the second holding position later. May be. Further, in this case, the chucking cap 7 is first coupled to the stabilizer 6 by the upward movement of the disk table 5, and the magnetic body 32 is later moved from the second holding position to the first holding position. It is possible to do so.

<Summary>
As described above, in the disk drive device 1, the stabilizer 6 is rotated integrally with the sheet disk recording medium 300 when the sheet disk recording medium 300 rotates. The chucking cap 7 is detached from the stabilizer 6 when the heavy disk-shaped disk recording medium 400 is rotated.

  Accordingly, the stabilizer 6 is not rotated when the disk-shaped disk recording medium 400 is rotated, and the load on the spindle motor 4 is not increased when the disk-shaped disk recording medium 400 is rotated, so that an increase in inertia can be avoided.

  As described above, since the load on the spindle motor 4 does not increase when the disk-shaped disk recording medium 400 rotates, it is possible to suppress the occurrence of vibration when the disk-shaped disk recording medium 400 rotates and to perform high-speed rotation. it can.

  Further, it is possible to make the load on the spindle motor 4 the same when recording or reproducing the information signal with respect to the sheet-like disk recording medium 300 and when recording or reproducing the information signal with respect to the disk-like disk recording medium 400. . Therefore, in the servo control for the sheet-shaped disk recording medium 300 and the disk-shaped disk recording medium 400, it is not necessary to perform separate control such as changing the set value of the servo constant, and the design can be facilitated. .

  Furthermore, since the chucking cap 7 is detached from the stabilizer 6 by the pressing pin 34 that is moved in the vertical direction, the chucking cap 7 is detached from the stabilizer 6 by a simple mechanism, and the removal mechanism is simplified. be able to.

  Furthermore, when the sheet-like disk recording medium 300 is chucked, the magnetic body 32 is held at the first holding position, and when the disk-like disk recording medium 400 is chucked, the magnetic body 32 is held at the second holding position. Therefore, the magnetic body 32 is moved according to the difference in thickness between the sheet-like disk recording medium 300 and the disk-like disk recording medium 400. Accordingly, it is possible to perform chucking on the sheet-shaped disk recording medium 300 and chucking on the disk-shaped disk recording medium 400 by the disk table 5 and the chucking cap 7 with the same holding force. 300 and the disk-shaped disk recording medium 400 can be properly chucked.

  Further, since the magnetic body 32 is moved from the first holding position to the second holding position by the pressing pin 34, the magnetic body 32 is moved from the first holding position to the second holding position by a simple mechanism. It is moved, and the mechanism can be simplified.

  Furthermore, since the movement of the magnetic body 32 from the first holding position to the second holding position and the movement of the chucking cap 7 from the coupling position to the disengaging position are continuously performed, the speed of operation and the mechanism can be improved. Simplification can be achieved.

  Furthermore, when the disk table 5 is moved in the direction approaching the chucking cap 7, the magnetic body 32 is pressed by the disk table 5 and the chucking cap 7 is coupled to the stabilizer 6. Therefore, a dedicated mechanism for coupling the chucking cap 7 to the stabilizer 6 is not required, and the mechanism can be simplified.

  In addition, when the disk table 5 is moved in the direction approaching the chucking cap 7, the magnetic body 32 is pressed by the disk table 5 and moved from the second holding position to the first holding position. Therefore, a dedicated mechanism for moving the magnetic body 32 from the second holding position to the first holding position is not required, and the mechanism can be simplified.

  Further, since the movement of the magnetic body 32 from the second holding position to the first holding position and the movement of the chucking cap 7 from the separation position to the coupling position are continuously performed, the operation is speeded up and the mechanism is operated. Simplification can be achieved.

  In the above, an example in which the sheet-like disk recording medium 300 and the disk-like disk recording medium 400 are operated in the vertical direction (vertical direction) is shown. The present invention can also be applied when the direction of the disk recording medium 400 is the horizontal direction.

  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.

FIG. 2 to FIG. 18 show the best mode of the present invention, which is a schematic perspective view showing a disk drive device and a disk cartridge. FIG. 3 is an enlarged front view illustrating a state in which a sheet-shaped disk recording medium is stored in a first disk cartridge, partly in cross section. FIG. 5 is an enlarged front view showing a state in which a disc-shaped disk recording medium is stored in a second disk cartridge, partly in cross section. It is a side view which shows a disk chucking mechanism etc. partially in cross section. It is an expanded sectional view which shows a chucking cap, a magnetic body, and a part of stabilizer. It is an enlarged plan view which shows a pin drive mechanism and a switch. It is an expanded development view of a cam gear. FIG. 9 shows the operation of the disk chucking mechanism related to the sheet-like disk recording medium together with FIG. 9, and is a cross-sectional view showing a state where the sheet-like disk recording medium is conveyed to the disk mounting position. It is sectional drawing which shows the state by which the sheet-like disc recording medium was chucked. FIGS. 11 to 18 show the operation of the disk chucking mechanism related to the disk-shaped disk recording medium, and this figure is a cross-sectional view showing a state where the disk-shaped disk recording medium is conveyed to the disk mounting position. . It is sectional drawing which shows the state by which the magnetic body was moved and hold | maintained from the 1st holding position to the 2nd holding position. It is sectional drawing which shows the state from which the chucking cap was removed from the stabilizer. It is sectional drawing which shows the state by which the disk shaped disc recording medium was chucked. It is sectional drawing which shows the state from which chucking with respect to the disk shaped disc recording medium was cancelled | released and the press pin was moved upwards. It is sectional drawing which shows the state by which the chucking cap, the magnetic body, and the stabilizer were moved upwards. It is sectional drawing which shows the state by which the magnetic body was moved from the 2nd holding position to the 1st holding position, and was hold | maintained. It is sectional drawing which shows the state with which the chucking cap was couple | bonded with the stabilizer. It is sectional drawing which shows the state which the spindle motor and the disk table were moved below and returned to the initial state.

  DESCRIPTION OF SYMBOLS 1 ... Disc drive apparatus, 300 ... Sheet-like disc recording medium, 301 ... Disc tray, 401 ... Disc tray, 600 ... Disc chucking mechanism, 4 ... Spindle motor, 4a ... Motor shaft, 5 ... Disc table, 6 ... Stabilizer, 7 ... Chucking cap, 20 ... Magnet, 24a ... Adsorption surface, 32 ... Magnetic body, 34 ... Pressing pin

Claims (9)

A spindle motor provided as a drive source;
A disk-shaped disk recording medium fixed on the motor shaft of the spindle motor or a disk-shaped disk recording medium thicker than the sheet-shaped disk recording medium is mounted and rotated by the driving force of the spindle motor and the disk recording medium A disc table moved integrally with the spindle motor in the direction of the central axis of
A stabilizer having a suction surface facing one surface of the disk recording medium mounted on the disk table, and being rotatable with the rotation of the disk table;
The disk recording medium is coupled between a coupling position coupled to the stabilizer and rotated integrally with the stabilizer and the disk table, and a separation position detached from the stabilizer and rotated together with the disk table. A chucking cap that is movable in the direction of the central axis;
A magnet held on one of the disk table or the chucking cap;
A magnetic body that is held on the other of the disk table or the chucking cap and is attracted to the magnet when the disk table is moved in a direction approaching the chucking cap in the central axis direction;
The disc table is moved in a direction approaching the chucking cap in the central axis direction, and the disc recording medium mounted on the disc table is sandwiched and held by the chucking cap and the disc table,
The chucking cap is held in the coupling position when the sheet-like disk recording medium is mounted on the disk table,
A disk chucking mechanism in which the chucking cap is held at the release position when the disk-shaped disk recording medium is mounted on the disk table. The disc chucking mechanism according to claim 1, further comprising a pressing pin that is movable in the central axis direction and presses the chucking cap from the coupling position toward the separation position. The magnet or the magnetic body held by the chucking cap is movable between a first holding position and a second holding position approaching the disk table from the first holding position in the central axis direction. And
When the sheet-like disk recording medium is mounted on the disk table, the magnet or the magnetic body is held at the first holding position,
The disc chucking mechanism according to claim 1, wherein the magnet or the magnetic body is held at the second holding position when the disc-shaped disc recording medium is mounted on the disc table. 4. A pressing pin that is movable in the direction of the central axis and that presses the magnet or the magnetic body held by the chucking cap from the first holding position toward the second holding position is provided. Disc chucking mechanism as described in 1. The movement of the magnet or the magnetic body held by the chucking cap from the first holding position to the second holding position and the movement of the chucking cap from the coupling position to the release position are continuous. The disc chucking mechanism according to claim 3, wherein the disc chucking mechanism is performed. The disk chucking according to claim 1, wherein the magnet or the magnetic body held by the chucking cap is pressed against the disk table so that the chucking cap is moved from the disengagement position to the coupling position. mechanism. The magnet held by the chucking cap when the disc table moves in a direction approaching the chucking cap in the central axis direction in a state in which the disc recording medium is released from the disc table. The disk chucking mechanism according to claim 3, wherein the magnetic body is pressed by the disk table and moved from the second holding position to the first holding position. The movement of the magnet or the magnetic body held by the chucking cap from the second holding position to the first holding position and the movement of the chucking cap from the release position to the coupling position are continuous. The disc chucking mechanism according to claim 7, wherein the disc chucking mechanism is performed. A disk transport mechanism for selectively transporting a sheet-shaped disk recording medium and a disk-shaped disk recording medium thicker than the sheet-shaped disk recording medium;
A disk chucking mechanism for chucking the sheet-shaped disk recording medium or the disk-shaped disk recording medium conveyed by the disk conveying mechanism,
The disc chucking mechanism includes:
A spindle motor provided as a drive source;
A disk-shaped disk recording medium fixed on the motor shaft of the spindle motor or a disk-shaped disk recording medium thicker than the sheet-shaped disk recording medium is mounted and rotated by the driving force of the spindle motor and the disk recording medium A disc table moved integrally with the spindle motor in the direction of the central axis of
A stabilizer having a suction surface facing one surface of the disk recording medium mounted on the disk table, and being rotatable with the rotation of the disk table;
The disk recording medium is connected between a coupling position coupled to the stabilizer and rotated together with the stabilizer and the disk table, and a separation position separated from the stabilizer and rotated together with the disk table. A chucking cap that is movable in the direction of the central axis;
A magnet held on one of the disk table or the chucking cap;
A magnetic body that is held on the other of the disk table or the chucking cap and is attracted to the magnet when the disk table is moved in a direction approaching the chucking cap in the central axis direction;
The disc table is moved in a direction approaching the chucking cap in the central axis direction, and the disc recording medium mounted on the disc table is sandwiched and held by the chucking cap and the disc table,
The chucking cap is held in the coupling position when the sheet-like disk recording medium is mounted on the disk table,
A disk drive device in which the chucking cap is held at the disengaged position when the disk-shaped disk recording medium is mounted on the disk table.

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