JP2006127734A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk device capable of easily loading a disk by the method having high degree of freedom. <P>SOLUTION: This device is provided with a front cover 3 equipped with a traverse base 5 having an optical pickup 2 and a turntable 1 mounted thereon, and arranged to move between a recording/reproducing position and a standby position, a disk mounting surface 3a for mounting a disk 4, and an opening 3b formed in the disk mounting surface 3a to insert the turntable 1 when the traverse base 5 moves between the recording/reproducing position and the standby position, and a centering member 8 for holding and transferring the disk 4 to a position in which the center of the disk 4 matches the center of the turntable 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention makes it possible to mount a recording or reproducing disk such as a CD (Compact Disk) or DVD (Digital Versatile Disk), or a disk stored in a case, and record or reproduce various information signals on the disk. It is related with the disk apparatus for making it do.

  In recent years, DVD recorders that can record and play back information signals on DVDs have begun to spread rapidly, but in order to further spread in the future, pursuing more user-friendly and easier to use like universal design. There is a need for the development of such disk devices. In order to improve the usability of the disk device, a configuration has been proposed in which the disk can be easily mounted on the disk device.

  In a conventional disk device, a “tray system” in which a tray on which a disk can be placed is mounted so as to be inserted and pulled out is generally employed. In the tray type disk device, the disk is mounted on the disk device by placing the disk on the tray drawn out from the device and inserting the tray into the device.

  A conventional disk device will be described below.

Conventionally, a disk device described in Patent Document 1 is known. In the disk device described in Patent Document 1, an opening for inserting and removing a tray is provided on the front panel of a disk-using device, and after the disk is placed on the tray that has come out of the opening, the disk is mounted together with the tray. It is comprised so that it may be drawn in to an internal predetermined position (attachment / detachment position to a turntable). Then, the disk on the tray drawn into the apparatus is mounted on the turntable and sandwiched between the clamper and the disk is rotated at a predetermined rotational speed. Information signals are recorded or reproduced on a rotating disc. For example, when reproducing, the pickup for reading the signal is moved to the track position where the information signal in the information layer of the disc is recorded. Next, the information signal can be reproduced by irradiating the information layer with a light beam and receiving the light beam reflected by the disc with a pickup.
Japanese Patent Publication No. 4-67712

  However, in the conventional configuration described above, in order to mount the disc on the apparatus, a series of operations of pulling out the tray, placing the disc on the tray, and then returning the tray to the apparatus again is necessary. There is a problem in that it is necessary to position and place the disk in the disk mounting concave portion provided on the tray, and it takes time to mount the disk, and there is less flexibility in the disk mounting method.

  SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and an object thereof is to provide a disk device that can be easily mounted by a method having a high degree of freedom.

  In order to solve the above-mentioned problems, a disk apparatus according to the present invention is a disk apparatus capable of recording / reproducing information signals with respect to a disk, and an optical pickup for recording / reproducing information signals with respect to the disk, and the disk And a turntable for rotating the disk at a position where information signals can be recorded / reproduced with respect to the disk, and arranged so as to be movable between a recording / reproduction position and a standby position. A traverse base, a disc placement surface on which the disc is placed, and a turntable formed on the disc placement surface so that the turntable can be inserted when the traverse base moves between a recording / reproducing position and a standby position. To the position where the center of the disc and the center of the turntable coincide with the front cover provided with the opening formed. A centering member that holds and transports the disk, the centering member passing through the center of the turntable and intersecting the disk mounting surface of the turntable at a right angle, and the center of the turntable A pair of symmetrically abutting the disk about a second plane passing through the first plane and intersecting the first plane at a substantially right angle, and symmetrically about the first plane. It is comprised so that rotation is possible symmetrically centering | focusing on.

  According to the disk device having the above-described configuration, it is possible to obtain an excellent effect that the disk can be easily mounted by a method having a high degree of freedom.

  The disk device of the present invention may have a configuration in which a part of the pair of centering members has a gear, and the gears are arranged to mesh with each other.

  Further, the pair of centering members may be configured such that end portions on the opposite side to the respective rotation center sides are urged by an elastic member in a direction approaching each other.

  The pair of centering members include a closing direction restricting member that restricts the rotation in the closing direction, and an opening direction restricting member that restricts the pair of centering members from rotating in the opening direction. be able to.

  The centering member includes a first plane that passes through the center of the turntable and the optical pickup and intersects the disk mounting surface of the turntable at a right angle, and the first plane that passes through the center of the turntable. A pair of symmetrically abutting on the disc centered on a second plane intersecting at substantially right angles, and a pair of symmetrically provided centering on the first plane, each pivoting symmetrically about the second plane A first centering member and a second centering member that are moved in a direction substantially perpendicular to and opposite to a line passing through the center of the turntable and the optical axis center of the optical pickup. A regulating member and a second regulating member; and a drive mechanism for driving the first regulating member and the second regulating member, wherein the first regulating member and the second regulating member are The first position where the first restricting member restricts the rotation of the first centering member in the centering direction, and the second restricting member restricts the rotation of the second centering member in the centering direction. The first restricting member restricts the rotation of the second centering member in the direction away from the disk, and the second restricting member separates from the disk of the first centering member. It is preferable that the first position that restricts the rotation to the second position and the second position opposite to each other are configured to be movable.

  In addition, a part of the pair of centering members may have a gear, and the gears may be arranged so as to mesh with each other.

  Further, the pair of centering members may be configured such that end surfaces opposite to the respective rotation center sides are urged by an elastic member in a direction approaching each other.

  Further, by providing a centering adjustment member having a gear that meshes with any one of the pair of centering members, and by restricting the rotation of the centering adjustment member by bringing a restriction member into contact with the centering adjustment member, It can be set as the structure which controls rotation of the said centering member.

  Further, the pitch circle diameter of the gear of the centering adjustment member can be made larger than the pitch circle diameter of the gear of the centering member.

  In addition, an opening / closing member capable of opening / closing the opening may be provided, and the opening / closing member may be configured to be opened / closed in conjunction with the movement of the first regulating member.

  The traverse base is provided with a pin, the first restricting member is provided with a cam groove, the pin is movably engaged with the cam groove, and the cam groove is used to move the first restricting member. In conjunction, the traverse base can be configured to move between the recording / reproducing position and the standby position.

(Embodiment 1)
First, the configuration of a disk system equipped with the disk device of the present invention will be described.

  1 and 2 are perspective views showing the external appearance of the disk system. FIG. 1 shows a recordable / reproducible state, and FIG. 2 shows a disk mountable state. The “recordable / reproducible state” refers to a state in which the disc 4 is clamped by a turntable and a clamper (both not shown) and information signals can be recorded / reproduced on the disc 4. The “disc mountable state” refers to a state in which the clamp base 10 (described later) is retracted to a position where it cannot be seen from the outside and the user can attach and detach the disc 4 to and from the apparatus.

  1 and 2, the disc system 50 is a stationary disc player or disc recorder, and an opening 52 is formed in the front portion. Inside the exterior cover in which the opening 52 is formed, a disk device (described later) capable of recording or reproducing information signals by clamping the disk is installed vertically. The user can attach the disk 4 to the disk device through the opening 52.

  An operation unit 51 that can perform various operations of the disk system 50 is disposed near the opening 52 in the disk system 50. The operations that can be performed by the operation unit 51 include, for example, a reproduction operation for reproducing an information signal recorded on the disc 4, a recording operation for recording an information signal on the disc 4, and a transition of the disc 4 from a recordable / reproducible state to a disc mountable state There is an eject operation, but it is not limited to these operations.

  The front cover 3 supports the disk 4 when the disk 4 is mounted on the disk device by the user in the opening 52 of the disk system 50. The front cover 3 includes a disk mounting surface 3a, an opening 3b for exposing the turntable 1 and the optical pickup 2 (see FIGS. 3 and 4) disposed on the back surface of the disk mounting surface 3a, and the disk 4 And a rib 3c that regulates the position in the downward direction. In the disk 4 mounted on the disk device, a part of the recording surface is supported by the disk mounting surface 3a, and a part (lower end) of the outer peripheral edge of the disk 4 is supported by the rib 3c.

  The centering members 8a to 8d are arranged so as to be rotatable about a support shaft 8e. Further, the centering members 8a to 8d hold the edge of the disk 4 and center the disk 4 while the disk 4 is placed on the rib 3c and reaches the recordable / reproducible state shown in FIG. “Centering” is to adjust the position of the disk 4 so that the center of the disk 4 and the center of the turntable 1 coincide. As shown in FIG. 1, after the disk 4 is clamped, the disk 4 is separated from the edge of the disk 4 and waits at the position shown in the figure. Further, in the disc mountable state shown in FIG. 2, the centering members 8 a to 8 d are retracted from the opening portion 52 to a position where they cannot be seen.

  The opening / closing member 9 is formed of a substantially plate-like member, and the main surface has a size capable of covering the opening 3b. The opening / closing member 9 is disposed on the back side of the disk mounting surface 3a and is movably disposed in the arrow P or Q direction.

  The clamp base 10 is disposed on the disk mounting surface 3a in the disk system 50 so as to be movable in the arrow P or Q direction. Further, a clamper 11 for clamping the disk 4 is disposed on the back surface of the clamp base 10.

  Hereinafter, the operation of the disk system 50 will be described.

  First, when the disk system 50 is powered off, the state is as shown in FIG. That is, the clamp base 10 and the centering members 8a to 8d are in a standby position on the outer periphery that is not exposed to the opening 52, and the opening / closing member 9 is in a position covering the opening 3b.

  When operating the disk system 50, the operation unit 51 is operated in the state shown in FIG. Next, the disk 4 is placed on the disk mounting surface 3a and the rib 3c. Next, for example, when the playback button in the operation unit 51 is operated, the clamp base 10 starts to move in the direction of the arrow Q, and at the same time, the centering members 8a to 8d are rotated around the support shaft 8e. Hold. The disk 4 is held by the centering members 8a to 8d and moved to the centering position. After the clamp base 10 is moved to a position where it overlaps the center of the disk 4, the opening / closing member 9 starts to move in the arrow Q direction. FIG. 1 shows a state where the opening / closing member 9 has been moved to the standby position. In the state shown in FIG. 1, the clamp base 10 is in a position covering the opening 3d (see FIG. 2), and the opening / closing member 9 is in a position opening the opening 3d.

  Next, a traverse base 5 (described later) disposed on the back side of the front cover 3 is moved toward the front surface of the front cover 3, and the turntable 1 and the pickup 2 mounted on the traverse base 5 pass through the opening 3b. The disk 4 can be clamped by the turntable 1 and the clamper 11 by being moved to a position where the disk 4 can be accessed. When the clamping of the disk 4 is completed, the centering members 8a to 8d are rotated about the support shaft 8e and moved to a state of being separated from the edge of the disk 4 as shown in FIG.

  Next, the turntable 1 rotates the disk 4 and the optical pickup 2 irradiates the information layer of the disk 4 with a light beam, whereby the information signal recorded on the disk 4 can be reproduced.

  In the above description, the reproducing operation of the disc 4 has been described. However, the same operation can be performed even in the recording operation in which the information signal is recorded on the disc 4. In the above description, the playback button is operated after the power is turned on. However, by operating only the playback button with the power off, the disk system 50 is turned on and the playback state is You may control to make it transfer to.

  Next, when the disk 4 is removed from the disk system 50, the operation of ejecting the light beam from the optical pickup 2 is stopped by operating the eject button in the operation unit 51 in the state shown in FIG. Is stopped. Next, the centering members 8 a to 8 d hold the edge of the disk 4, and the traverse base 5 is moved to the standby position (back side in the center direction of the disk 4), whereby the clamper 11 and the turntable 1 are used. The clamped state is released. Next, as shown in FIG. 2, the clamp base 10 and the opening / closing member 9 are moved in the direction indicated by the arrow P, and the centering members 8 a to 8 d are moved to positions away from the disk 4. The disk 4 is mounted on the disk mounting surface 3a and the rib 3c. Thereby, the user can take out the disk 4 mounted on the disk mounting surface 3a and the rib 3c.

  Next, a specific configuration of the disk device in the first embodiment will be described.

  FIG. 3 is a plan view showing a disk mountable state (first position) of the disk device according to Embodiment 1 of the present invention. Here, the “disc mountable state” is a state in which the user can attach and detach the disc to the apparatus. FIG. 4 is a side sectional view showing a disk mountable state of the disk device, and is a section taken along the line ZZ in FIG. 5 and 8 are plan views showing a disk centering completion state (third position) of the disk device. FIG. 6 is a cross-sectional view showing a recording / reproducing enabled state (second position) of the disk device. FIG. 7 is a side sectional view showing a recording / reproducing enabled state (second position) of the disk of the disk device, and is a section taken along a line YY in FIG. 3 to 7 show a configuration in which a large-diameter disk (for example, a disk having a diameter of 12 cm) can be attached and detached. Further, the same configuration as the configuration in FIGS. 1 and 2 will be described in more detail by assigning the same number.

  In the figure, a turntable 1 has a disk 4 mounted thereon, and rotates the disk 4 during recording or reproduction. The optical pickup 2 records or reproduces information signals with respect to the disk 4. The optical pickup 2 is disposed at a position facing the recording surface of the disk 4 and is movable in the radial direction of the disk 4. Here, the turntable 1 and the optical pickup 2 are mounted on a traverse base 5.

  The front cover 3 covers the front surface of the disk device, and includes a disk mounting surface 3a, an opening 3b, a rib 3c, and a wall 3e. The disk mounting surface 3 a is provided in a direction orthogonal to the optical axis direction of the optical pickup 2. The opening 3b is provided in a part of the disk mounting surface 3a, and the disk mounting surface of the turntable 1 is inserted and moved when switching between the disk mountable state and the recording / playback enabled state.

  The rib 3c is provided at a position away from the turntable 1 and the optical pickup 2 on the disk mounting surface 3a of the front cover 3, and is a part on which the disk 4 is mounted by the user. In the rib 3c, the amount of protrusion in the substantially vertical direction with respect to the disk mounting surface 3a is such that the apparatus is placed vertically (an installation method in which the disk mounting surface 3a is substantially perpendicular to the installation surface of the apparatus). At this time, the dimensions are set so that at least the disk 4 and the cartridge 19 (described later) can be placed. The rib 3c is provided at a position where the center of the disk 4 accommodated in the cartridge 19 and the center of the turntable 1 in a recordable / reproducible state are aligned when the cartridge 19 is placed.

  As shown in FIG. 3, the wall 3e is formed around the disk mounting surface 3a, and performs positioning of the disk 4 in the lateral direction when the disk 4 is mounted on the disk mounting surface 3a.

  The guide groove 3f is formed at the upper end of the front cover 3, and the upper end of the clamp base 10 is slidably supported.

  The chassis 20 covers the back side of the disk mounting surface 3 a and is fixed to the front cover 3.

  The traverse base 5 is mounted with a turntable 1 and an optical pickup 2, and is configured to be rotatable between a standby position and a recording / reproducing position in a state where a disk can be mounted around a support shaft 5a. The “standby position” is a position where the disk mounting surface of the turntable 1 and the optical pickup 2 do not protrude from the disk mounting surface 3a of the front cover 3 (that is, a state positioned below the disk mounting surface 3a). . The “recording / reproducing position” is a position where the disk mounting surface of the turntable 1 protrudes from the disk mounting surface 3a of the front cover 3 and the disk 4 can be mounted and recorded / reproduced. The turning mechanism of the traverse base 5 will be described later.

  The optical pickup 2 is movably supported on the guide shaft 6. The drive motor 7 is provided with a shaft 7a capable of outputting a rotational driving force. The optical pickup 2 is screwed onto the shaft 7a, and the shaft 7a is rotated so that the optical pickup 2 can be moved in the radial direction of the disk 4 while being supported by the guide shaft 6.

  The centering member 8 is a member that moves the disk 4 so that the center of the disk 4 placed on the rib 3c and the center of the turntable 1 are aligned. The centering member 8 is composed of four centering members 8a to 8d arranged symmetrically in the vertical and horizontal directions with the turntable 1 as the center. Further, the centering member 8 is configured to be rotatable about a support shaft 8e.

  The centering members 8a to 8d are a first plane that includes the rotation center axis of the turntable 1 and the optical axis of the optical pickup 2, and a second plane that passes through the center of the turntable 1 and intersects the first plane at a substantially right angle. The disk 4 is abutted symmetrically with respect to the center. The first and second centering members 8a and 8b support the upper side of the disk 4 when the disk 4 is centered. The third and fourth centering members 8c and 8d support the lower side of the disk 4 when the disk 4 is centered. In the present embodiment, the centering member 8 supports the outer peripheral edge portion of the disk 4, but may support and transfer a portion other than the outer peripheral portion of the disk 4. Further, as shown in FIG. 5, the centering members 8a to 8d are retracted so that the disk 4 and the cartridge 19 can be placed on the disk placement surface 3a as shown in FIG. A third position where the disk 4 is supported and the movement to the centering position is completed, and a second position where the disk 4 is clamped after the centering and shifted to a recording / reproducing state as shown in FIG. It is configured to be movable in the direction of arrow A or D so as to be movable. In the present embodiment, the first position, the third position, and the second position are displaced in the order when the disc is loaded, and the second position, the third position, and the first position are ordered when the disc is ejected. Operates to displace.

  Further, gears 8f are provided at the ends of the centering members 8a to 8d, respectively. Since the gears 8f provided on the centering members 8a and 8c mesh with each other, and the gears 8f provided on the centering members 8b and 8d mesh with each other, the centering members 8a and 8c rotate at the same timing, The centering members 8b and 8d rotate at the same timing. Further, the mechanism inside the disk device is configured so that the centering members 8a to 8d rotate at the same timing.

  Each of the centering members 8a to 8d is configured to have a length capable of scooping up the large diameter disk or the small diameter disk placed on the disk placement surface 3a and the rib 3c of the front cover 3 when rotating.

  The cartridge 19 is a disc housed in a case and corresponds to, for example, a commonly distributed DVD-RAM cartridge, but is not limited thereto. The cartridge 19 is provided with an openable / closable shutter 19b. When the cartridge 19 is opened, a part of the built-in disk 4 can be exposed. When the cartridge 19 is closed, the disk 4 can be protected. Therefore, the shutter 19b is opened when the information signal is recorded or reproduced on the disk 4, and the shutter 19b is closed to protect the disk 4 from dust or the like when it is detached from the disk device.

  The clamp base 10 waits at a position outside the wall portion 3e so as not to overlap the disk mounting surface 3a so that the disk 4 does not come into contact with the disk 4 when the disk 4 is mounted on the disk mounting surface 3a of the front cover 3. I am letting. In the present embodiment, the clamp base 10 stands by at a position on the right side of the disk mounting surface 3a as shown in FIG. Note that the disk may be placed on the left side of the disk mounting surface 3a. The clamp base 10 is configured to be movable from the standby position to the clamp position in a direction orthogonal to the movement direction of the optical pickup 2 and parallel to the disk mounting surface of the turntable 1. The “clamping position” is a position where the clamp base 10 can be moved together with the turntable 1 and can be clamped together with the turntable 1. The clamp base 10 is moved by the moving mechanism 21. The clamp base 10 is configured so as not to come into contact with the disk 4 placed on the disk placement surface 3a when the clamp base 10 is at the clamp position and when moving between the clamp position and the standby position. .

  As shown in FIG. 4, the moving mechanism 21 includes a motor 23 and a gear 22 that meshes with a rack 10 f that is provided integrally with the clamp base 10, and transmits a driving force from the motor 23 to the gear 22. The base 10 can be moved.

  The clamper 11 is disposed on the surface of the clamp base 10 that faces the front cover 3, and can clamp the disk 4 on the disk mounting surface of the turntable 1. The clamper 11 is arranged in the clamp base 10 so as to be slightly movable in the direction of the rotation axis of the turntable 1. Further, the clamper 11 has a built-in magnetic body and is configured to be attracted by a magnetic force to a magnetic body (iron plate or the like) built in the turntable 1.

  The springs 13a and 13b urge the centering members 8c and 8d in the centering direction indicated by the arrow A. The springs 13a and 13b are configured by coil springs in the present embodiment, but may be realized by other elastic members such as leaf springs as long as the centering members 8c and 8d can be biased in the centering direction. . In the present embodiment, the springs 13a and 13b are arranged so that the coil portions are substantially coaxial with the rotation centers of the centering members 8c and 8d. However, the springs 13a and 13b are arranged at the rotation centers of the centering members 8a and 8b. Also good. Moreover, you may distribute | arrange to each rotation center of centering member 8a-8d. Further, since the springs 13a and 13b are set to have the same spring rate so that the load applied by the spring 13a to the centering member 8c and the load applied by the spring 13b to the centering member 8d are the same, Can be centered. One end of each of the springs 13a and 13b is supported by a part of the front cover 3, and the other end is supported by a part of the centering members 8c and 8d.

  The centering adjustment members 14a and 14b are pivotally supported so as to be rotatable at positions coaxial with the centering members 8c and 8d or in the vicinity of the centering members 8c and 8d. Further, the centering adjusting members 14a and 14b are formed with a gear at one end, the gear of the centering adjusting member 14a meshes with the gear 8f of the centering member 8a, and the gear of the centering adjusting member 14b meshes with the gear 8f of the centering member 8b. . Further, since the centering adjusting members 14a and 14b are engaged with the centering members 8c and 8d biased in the arrow A direction by the springs 13a and 13b via the centering members 8a and 8b, they are biased in the arrow A direction. ing. Further, racks 16 and 17 (described later) are brought into contact with the other end sides of the centering adjustment members 14a and 14b, whereby the rotation of the centering adjustment members 14a and 14b in the direction of arrow A is restricted. . This restricts the rotation of the centering members 8a and 8b, restricts the rotation of the centering members 8c and 8d engaged with the centering members 8a and 8b, and restricts the rotation of all the centering members 8a to 8d. Become. Therefore, the rotation of the centering members 8a to 8d can be controlled by controlling the rotation of the centering adjustment members 14a and 14b.

  Further, the centering adjusting members 14a and 14b are arranged on the back side of the disk mounting surface 3a of the front cover 3 as shown in FIG. Therefore, the gears 8f of the centering members 8a and 8b that mesh with the gears of the centering adjusting members 14a and 14b in FIG. 3 are arranged so as to reach the back side of the front cover 3. The pitch circle diameter (PCD) of the gear provided on the centering adjustment members 14a and 14b is set to be larger than the pitch circle diameter of the gear 8f, thereby rotating the centering adjustment members 14a and 14b. When moved, the rotation amount of the centering members 8a to 8d can be made larger than the rotation amount of the centering adjustment members 14a and 14b. In the present embodiment, the pitch circle diameters of the centering adjustment members 14a and 14b are set to approximately twice the pitch circle diameter of the gear 8f, so that the rotation angles (rotation amounts) of the centering adjustment members 14a and 14b are set. ) Is half the rotation angle (rotation amount) of the centering members 8a to 8d, and the movement amounts of the racks 16 and 17 are also half.

  The first rack 16 and the second rack 17 are arranged so as to be movable at the same speed in a substantially perpendicular direction and in opposite directions with a line passing through the center of the turntable 1 and the center of the optical pickup 2 as the center. ing. When the disk device is in a disk mountable state, the first rack 16 is positioned on the centering member 8c side as shown in FIG. 3, and its left end portion 16a abuts on the centering adjustment member 14a, and the centering adjustment member The rotation of 14a in the direction of arrow A is restricted. The second rack 17 is located on the centering member 8d side as shown in FIG. 3 when the disk device is in a disk mountable state, and its right end 17a abuts on the centering adjustment member 14b, and the centering is performed. The rotation of the adjustment member 14b in the direction of arrow A is restricted. The first rack 16 can be moved in the direction of arrow E by a driving force from a drive source such as a separately provided motor, and the second rack 17 can be moved in the direction of arrow B. . The drive mechanism for the first rack 16 and the second rack 17 will be described later.

  In addition, by simultaneously moving the first rack 16 and the second rack 17 to start moving, the centering accuracy of the disk 4 can be improved. Furthermore, the centering accuracy can be further improved by setting the movement start timing at the same time and setting the movement speed to the same speed.

  The driving force from the driving source may be transmitted to the racks 16 and 17 independently of each other. However, in the present embodiment, the teeth 16c and the racks 16 and 17 are positioned at opposite positions. 17c is formed, a gear 31 meshing with both teeth 16c and 17c is provided, and the driving force from the driving source is transmitted to the gear 31, so that the driving force is transmitted to the teeth 16c and 17c meshing with the gear 31 and the rack 16 and 17 can be moved in opposite directions of arrows B and E, respectively.

  Further, the racks 16 and 17 are configured to abut on the same portion of the centering adjustment members 14a and 14b as much as possible so that the centering members 8a and 8c and the centering members 8b and 8d rotate at the same timing.

  Further, the racks 16 and 17 are arranged so that they do not contact each other when the disk device is viewed from the front as shown in FIG. 3, and the racks 16 and 17 are arranged vertically when viewed from the side as shown in FIG. They are arranged in a direction.

  Although the racks 16 and 17 are not shown in the drawing, for example, cam grooves are provided along the longitudinal direction of the racks 16 and 17, and pins that engage with the cam grooves are provided on the apparatus side to slide the racks. Although the structure hold | maintained freely can be considered, another structure may be sufficient.

  The operation of the disk device configured as described above will be described below.

(Removal operation of large diameter disc)
In FIG. 3, when the disk 4 is placed on the disk placement surface 3 a and the rib 3 c by the user, the center of the disk 4 is shifted from the center of the turntable 1 downward. Further, the position restriction of the disk 4 in the left-right direction is restricted by the wall 3e, and the position of the disk 4 is restricted to some extent by the disk 4 hitting the centering members 8a to 8d. At this time, the centering members 8a to 8d are retracted so as not to be positioned on the projection surface of the disk mounting surface 3a. Further, the centering adjustment members 14a and 14b are in the positions shown in FIG. The left end 16a of the first rack 16 abuts on the centering adjustment member 14a, the right end 17a of the second rack 17 abuts on the centering adjustment member 14b, the centering adjustment members 14a and 14b, and the centering members 8a to 8d. Rotation in the direction of arrow A is restricted.

  Next, when a recording / reproducing start switch (not shown) is operated, the clamp base 10 starts to move from the standby position shown in FIG. 3 in the direction of arrow B (direction perpendicular to the moving direction of the optical pickup 2). Then, it is moved to the clamping position shown in FIG.

  Next, as shown in FIG. 4, the rotational driving force from the motor 33 is transmitted to the gear 31 via the motor gear 34, and is transmitted to the first rack 16 and the second rack 17 meshed with the gear 31. The first rack 16 starts to move in the direction of arrow E from the position shown in FIG. 3, and the second rack 17 starts to move in the direction of arrow B from the position shown in FIG. Then, the centering adjustment members 14a and 14b rotate in the direction of arrow A while being in contact with the racks 16 and 17 by the biasing force of the springs 13a and 13b. Accordingly, the centering members 8a and 8b meshed with the centering adjustment members 14a and 14b are rotated in the direction of arrow A about the support shaft 8e, and the centering members 8c and 8d meshed with the centering members 8a and 8b are supported. It is rotated in the direction of arrow A about the shaft 8e.

  Further, when the second rack 17 is moved in the direction indicated by the arrow B, the pin 17d fixed to the second rack 17 presses the lever 32 in the arrow B direction, and the lever 32 pivots on the support shaft 32c. Is rotated counterclockwise. The lever 32 is connected to the opening / closing member 9, and the opening / closing member 9 is moved in the direction indicated by the arrow B by rotating the lever 32. The relationship between the lever 32 and the opening / closing member 9 and the detailed moving operation of the opening / closing member 9 will be described later.

  The centering members 8a to 8d that are rotated in accordance with the movement of the first rack 16 and the second rack 17 eventually come into contact with the outer peripheral portion of the disk 4, and when further rotated, as shown in FIG. In addition, the disk 4 can be moved toward the center of the turntable 1 while the edge of the disk 4 slides on the disk contact portions of the centering members 8a to 8d.

  In the present embodiment, when the centering members 8a to 8d are rotated, first, the lower centering members 8c and 8d are brought into contact with the outer peripheral portion of the disk 4, and the rotation operation is continued as it is so that the disk 4 is turned on. 1 can be lifted toward the center. Next, by bringing the upper centering members 8a and 8b into contact with the outer periphery of the disk 4, the edge of the disk 4 can be supported at four locations.

  As shown in FIG. 5, when the disk 4 reaches the centering completion position (third position), the first to fourth centering members 8a to 8d move the edge of the disk 4 by the biasing force of the springs 13a and 13b. Stops in the pressed state. At this time, the centering members 8a to 8d are stopped in a state where the force is balanced in a state where the disk edge is pressed and supported. In FIG. 5, the opening / closing member 9 that has been moved with the movement of the second rack 17 is moved to a position where the opening 3b is partially opened, but the racks 16 and 17 further move. Thus, the opening 3b is moved to a position where the opening 3b is completely opened.

  The racks 16 and 17 continue to move in the directions of arrows B and E even if the centering members 8a to 8d are supported by the edge of the disk 4. Since the centering members 8a and 8c are in contact with the edge of the disk 4, the rotation of the centering members 8a and 8c is restricted, and the rotation of the centering adjustment member 14a is restricted. Therefore, as the rack 16 continues to move in the direction of arrow E, the centering adjustment member 14a and the rack 16 are eventually separated. Further, since the centering members 8b and 8d are in contact with the edge of the disk 4, the rotation of the centering members 8b and 8d is restricted, and the rotation of the centering adjustment member 14b is restricted. Therefore, as the rack 17 continues to move in the direction of arrow B, the centering adjustment member 14b and the rack 17 are eventually separated.

  Next, the traverse base 5 is rotated about the support shaft 5a in the direction of arrow C shown in FIG. 4, and the turntable 1 is moved through the opening 3b to the recording / reproducing position. The detailed turning operation of the traverse base 5 will be described later.

  As a result, the disk 4 is placed on the disk mounting surface of the turntable 1 and lifted. When the turntable 1 moves to the vicinity of the clamp position of the disk 4, the clamper 11 is attracted to the disk mounting surface of the turntable 1 by the magnetic force, and the disk 4 is clamped by the turntable 1 and the clamper 11. At this time, the racks 16 and 17 continue to move in the directions of arrows B and E.

  When the movement of the first rack 16 and the second rack 17 is continued after the disk 4 is clamped, the right end portion 16b of the first rack 16 eventually comes into contact with the centering adjustment member 14b, and the second rack 16 The left end portion 17b of 17 contacts the centering adjustment member 14a.

  When the first rack 16 is further moved in the direction of arrow E and the second rack 17 is moved in the direction of arrow B, the first rack 16 presses the centering adjustment member 14b and the centering adjustment member 14b is moved in the direction of arrow D. Further, the second rack 17 presses the centering adjustment member 14a and the centering adjustment member 14a starts to rotate in the direction of arrow D.

  Accordingly, the turning force of the centering adjustment member 14a is transmitted to the centering members 8a and 8c via the gear, and the turning force of the centering adjustment member 14b is transmitted to the centering members 8b and 8d via the gear. Thereby, as shown in FIG. 6, the centering members 8 a to 8 d are respectively rotated in the direction of the arrow D, and are retracted to positions away from the outer periphery of the disk 4. At this time, the disk 4 is clamped by the clamper 11 and the turntable 1 as shown in FIG.

  Next, the turntable 1 is rotated to rotate the disk 4, and an information signal can be recorded on or reproduced from the disk 4 by the optical pickup 2.

  Note that the retracted position of the first to fourth centering members 8a to 8d after being separated from the disk 4 is separated from the second position and the second position as long as it is separated from the outer periphery of the disk 4 placed on the turntable 1. You may retreat to any position between the three positions.

  The disk mounting operation is performed in the order of the movement operation of the clamp base 10, the centering operation, and the traverse movement (clamping) operation. However, this order is not necessarily required, and the disk 4 can be moved to the clamped state. If so, the order may change.

  Next, the operation for removing the disk 4 from the disk device will be described.

  As shown in FIG. 6, when a disk ejecting switch (not shown) is operated in a state where the disk 4 is at the recording / reproducing position, the rotation of the turntable 1 is stopped and the rotation of the disk 4 is stopped. . Next, the driving force output from the motor 33 (see FIG. 4) is transmitted to the racks 16 and 17.

  Next, the first rack 16 starts to move in the arrow B direction from the position shown in FIG. The second rack 17 starts to move in the direction of arrow E from the position shown in FIG. Accordingly, the centering adjustment member 14a is rotated in the direction of arrow A while being in contact with the rack 17 by the biasing force of the springs 13a and 13b, and the centering adjustment member 14b is in contact with the rack 16 while being in contact with the rack 16. It is rotated in the direction. Further, the centering members 8a to 8d meshing with the centering adjusting members 14a and 14b via gears are rotated in the direction of arrow A about the support shaft 8e.

  Next, as shown in FIG. 5, the centering members 8 a to 8 d are rotated from the second position (position separated from the disk 4) to the third position that supports the edge of the disk 4. Is supported by the urging force of the springs 13a and 13b. The racks 16 and 17 continue to move in the directions of arrows B and E even if the centering members 8a to 8d support the edge of the disk 4. When the racks 16 and 17 are moved to a predetermined position, the right end portion 16b of the first rack 16 and the centering adjustment member 14b are separated from each other, and the left end portion 17b of the second rack 17 and the centering adjustment member 14a are separated from each other. Separate.

  Next, the traverse base 5 is rotated in the direction of arrow F around the support shaft 5a as shown in FIG. 7, and moved from the recordable / reproducible state to the standby state shown in FIG. Accordingly, the turntable 1 and the clamper 11 are separated from each other against the magnetic attractive force, and the clamped disk 4 is supported only by the centering members 8a to 8d as shown in FIG. Become.

  Further, when the first rack 16 is moved in the arrow B direction and the second rack 17 is moved in the arrow E direction, as shown in FIG. 3, the left end portion 16a of the first rack 16 contacts the centering adjustment member 14a. The right end 17a of the second rack 17 comes into contact with the centering adjustment member 14b. When the first rack 16 is further moved in the arrow B direction after the contact, the centering adjustment member 14a pressed by the first rack 16 is rotated against the urging force of the spring 13a. The centering members 8a and 8c engaged with the centering adjustment member 14a are rotated in the direction of arrow D against the urging force of the springs 13a and 13b, respectively. Accordingly, the disk 4 slides down the disk contact surfaces of the centering members 8c and 8d and is placed on the rib 3c. When the first rack 16 and the second rack 17 reach the first position shown in FIG. 3, the motor 33 stops, the rotation of the motor gear 34 and the gear 31 stops, and the first rack 16 and the second rack 17 The movement of the second rack 17 is stopped.

  Next, the clamp base 10 is moved in the arrow E direction from the clamp position shown in FIG. 5 by a drive mechanism such as a motor, and waits at the standby position shown in FIG. As a result, the user can take out the disk 4 from the disk device.

  Here, the opening member 9 is moved to a position covering the opening 3b as shown in FIG. 3 as the rack 17 moves in the direction of arrow E.

  Note that the above-described disk ejecting operation is performed in the order of releasing the clamp, releasing the centering, and retracting the clamp base. However, the order is not necessarily required. It may change.

(Removal operation of the small-diameter disk 18)
In the disk device of the present embodiment, a small-diameter disk 18 can be mounted as shown in FIG. FIG. 8 is a plan view showing a state in which a small-diameter disk 18 (for example, a disk having a diameter of 8 cm) is mounted.

  The mounting operation of the small-diameter disk 18 is substantially the same as the mounting operation of the large-diameter disk 4, but the rotation amounts of the centering adjusting members 14a and 14b and the centering members 8a to 8d are different. That is, since the small-diameter disk 18 is smaller in diameter than the large-diameter disk 4, when the small-diameter disk 18 is centered, the centering members 8a to 8d and the centering adjusting members 14a and 14b need to be largely rotated.

  In order to increase the amount of rotation of each member, the gear 8f formed on the centering members 8a to 8d and the gear formed on the centering adjusting members 14a and 14b are enlarged, and the arrangement of the springs 13a and 13b The spring rate needs to be optimized. Further, it is necessary to optimize the length and arrangement of the centering members 8a to 8d so that the small-diameter disk placed on the rib 3c can be held.

  In the present embodiment, the length and arrangement of the centering members 8a to 8d are optimized so that the large diameter disk 4 and the small diameter disk 18 can be held, and the arrangement and spring rate of the springs 13a and 13b are also optimized. Yes.

  The centering operation of the small-diameter disk 18 is the same as the centering operation of the large-diameter disk 4 described above, and detailed description of the operation is omitted.

(Removal operation of cartridge 19)
Next, the mounting operation of the cartridge 19 will be described with reference to FIGS.

  FIG. 9 is a plan view showing a state in which a disk (hereinafter referred to as a cartridge) housed in a case is mounted in the disk device. FIG. 10 is a side cross-sectional view when the cartridge is mounted on the disk device, and is a cross section taken along the line XX in FIG.

  As shown in FIG. 9, in a state where the first to fourth centering members 8a to 8d are in the first position, the user can place the cartridge 19 on the disk placement surface 3a and the rib 3c. In a state where the cartridge 19 is placed on the disc placement surface 3a and the rib 3c by the user, the centering members 8a to 8d located at the left and right ends in the plane direction of the disc placement surface 3a restrict the position in the left and right direction.

  At this time, the first and third centering members 8 a and 8 c are not in contact with the left end portion 9 a of the cartridge 19 and are in a separated state. The second and fourth centering members 8b and 8d are not in contact with the right end portion 9c of the cartridge 19 and are in a separated state. Further, the centering adjustment members 14a and 14b are in the positions shown in FIG.

  Further, the left end 16a of the first rack 16 is in contact with the centering adjustment member 14a. The right end 17a of the second rack 17 is in contact with the centering adjustment member 14b. Therefore, the centering adjustment members 14a and 14b and the centering members 8a to 8d are restricted from turning in the direction of arrow A.

  Next, when a recording / reproducing start switch (not shown) is operated, the clamp base 10 is moved from the standby position shown in FIG. 9 in the direction of arrow B (relative to the moving direction of the optical pickup 2) by a driving mechanism such as a motor. (Orthogonal direction). The clamp base 10 is moved to a clamp position where the center of the turntable 1 and the center of the clamper 11 substantially coincide (not shown).

  Next, the rotational driving force from the motor 33 (see FIG. 4) is transmitted to the racks 16 and 17 via the motor gear 34 and the gear 31. The rack 16 starts to move in the direction of arrow E from the position shown in FIG. 9 by the transmitted driving force, and the rack 17 starts to move in the direction of arrow B from the position shown in FIG. 9 by the transmitted driving force. Is done.

  When the movement of the racks 16 and 17 is started, the centering adjusting members 14a and 14b rotate in the direction of arrow A while being in contact with the racks 16 and 17 by the biasing force of the springs 13a and 13b. When the centering adjustment members 14a and 14b are rotated, the centering members 8a to 8d engaged with the centering adjustment members 14a and 14b are rotated in the direction of arrow A about the support shaft 8e.

  The rotating centering members 8a to 8d are in contact with the left end 9a and the right end 9c of the cartridge 19, and are stopped in a state where the left end 9a and the right end 9c of the cartridge 19 are pressed by the biasing force of the springs 13a and 13b. To do. Thereby, the positioning of the cartridge 19 in the left-right direction is completed. The cartridge 19 is positioned in the vertical direction while being placed on the rib 3c.

  The racks 16 and 17 continue to move in the directions of arrows B and E even if the centering members 8a to 8d abut on the left end 9a and the right end 9c of the cartridge 19. When the racks 16 and 17 continue to move, the left end portion 16a of the first rack 16 and the centering adjustment member 14a are separated from each other, and the right end portion 17a of the second rack 17 and the centering adjustment member 14b are separated from each other.

  Thereafter, the shutter 19b provided on the cartridge 19 is opened by a shutter opening / closing mechanism (not shown).

  Next, the traverse base 5 is rotated in the direction of arrow C about the support shaft 5a from the standby position shown in FIG. When the traverse base 5 is rotated, the turntable 1 passes through the opening 3b and moves to the recording / reproducing position. Thereby, the disk 4 in the cartridge 19 is placed on the disk mounting surface of the turntable 1 and lifted.

  When the disk 4 is lifted by the turntable 1, the clamper 11 located at the position facing the turntable 1 is attracted to the disk mounting surface of the turntable 1 by a magnetic force, and the disk 4 is clamped by the turntable 1 and the clamper 11. Is done. During the clamping operation, the racks 16 and 17 continue to move in the directions of arrows B and E.

  Next, after the traverse base 5 has moved to the recording / reproducing position, the right end portion 16b of the first rack 16 contacts the centering adjustment member 14b, and the left end portion 17b of the second rack 17 contacts the centering adjustment member 14a. Abut.

  When the first rack 16 is further moved in the direction of arrow E and the second rack 17 is moved in the direction of arrow B, the first rack 16 presses the centering adjustment member 14b and the centering adjustment member 14b is moved in the direction of arrow D. Further, the second rack 17 presses the centering adjustment member 14a, and the centering adjustment member 14a rotates in the direction of arrow D.

  When the centering adjustment members 14a and 14b are rotated, the turning force of the centering adjustment member 14a is transmitted to the centering members 8a and 8c via the gears, and the turning force of the centering adjustment member 14b is transmitted to the centering members 8b and 8c via the gears. 8d. Therefore, the centering members 8a to 8d are rotated in the direction of the arrow D and are separated from the left end 9a and the right end 9c of the cartridge 19.

  Next, the turntable 1 is rotated to rotate the disk 4, and an information signal is recorded on or reproduced from the disk 4 by the optical pickup 2.

  Next, a case where the cartridge 19 is removed from the disk device will be described.

  When a disk ejecting switch (not shown) is operated while the disk 4 in the cartridge 19 is at the recording / reproducing position, the rotation of the turntable 1 is stopped and the rotation of the disk 4 is stopped.

  Next, the driving force from the motor 33 (see FIG. 4) is transmitted to the racks 16 and 17 via the motor gear 34 and the gear 31. When the driving force is transmitted, the first rack 16 starts to move in the direction of the arrow B from the state of being in contact with the centering adjustment member 14b, and the second rack 17 is in contact with the centering adjustment member 14a. The movement starts from the state in the direction of arrow E.

  When the first rack 16 and the second rack 17 are moved, the centering adjustment members 14a and 14b rotate in the direction of arrow A while being in contact with the racks 16 and 17 by the biasing force of the springs 13a and 13b. To do. Along with this, the centering members 8a to 8d engaged with the centering adjustment members 14a and 14b via gears rotate in the direction of arrow A about the support shaft 8e.

  The centering members 8a to 8d are rotated from the second position (position away from the cartridge 19) to the third position that supports the side surface of the cartridge 19, and the left end 9a and the right end 9c of the cartridge 19 are spring-loaded. It is pressed and supported by the urging force of 13a and 13b.

  The racks 16 and 17 continue to move in the directions of arrows B and E even if the centering members 8a to 8d abut on the left end 9a and the right end 9b of the cartridge 19. When the racks 16 and 17 continue to move, the right end portion 16b of the first rack 16 and the centering adjustment member 14b are separated from each other, and the left end portion 17b of the second rack 17 and the centering adjustment member 14a are separated from each other.

  Next, the traverse base 5 is rotated about the support shaft 5a in the reverse direction of the arrow C and moved to the standby position shown in FIG. Accordingly, the disc 4 held by the turntable 1 and the clamper 11 is detached from the disc placement surface of the turntable 1. At this time, the racks 16 and 17 continue to move in the directions of arrows B and E, respectively.

  When the first rack 16 continues to move in the direction of arrow B and the second rack 17 continues in the direction of arrow E, the left end portion 16a of the first rack 16 comes into contact with the centering adjustment member 14a, and the second rack 17 The right end portion 17a contacts the centering adjustment member 14b. After the contact, when the first rack 16 further moves in the arrow B direction and the second rack 17 moves in the arrow E direction, the centering adjustment members 14a and 14b rotate against the urging force of the springs 13a and 13b, The centering members 8a to 8d engaged with the centering adjusting members 14a and 14b rotate in the arrow D direction against the urging force of the springs 13a and 13b, respectively.

  Next, the clamp base 10 moves from the clamp position in the direction of arrow E and moves to the standby position shown in FIG. Since the clamp base 10 does not overlap the cartridge 19 at the standby position, the user can take out the cartridge 19.

(Movement operation of the opening / closing member 9)
11 to 13 are plan views showing a mechanism for moving the opening / closing member 9. 11 shows a position where the opening / closing member 9 covers the opening 3b (see FIG. 3), FIG. 12 shows a position during the movement of the opening / closing member 9, and FIG. 13 shows a position where the opening / closing member 9 opens the opening 3b. For ease of illustration and description, only the components necessary for the description are shown.

  11 to 13, a pin 9 c is fixed to the back surface side of the opening / closing member 9.

  The open / close lever 32 is pivotally supported by a support shaft 32c fixed to the back side of the front cover 3 (see FIG. 3). A pin 9c is movably engaged with the opening 32a. A pin 17d fixed to the second rack 17 (see FIG. 3) is movably engaged with the groove 32b.

  First, when the second rack 17 starts moving in the arrow B direction (see FIG. 3) in a state where the opening / closing member 9 covers the opening 3b as shown in FIG. 11, it is engaged with the groove 32b. The pin 17d is moved in the arrow K direction. The moved pin 17d presses the inner wall of the groove 32b, and the opening / closing lever 32 is rotated counterclockwise about the support shaft 32c. When the opening / closing lever 32 is rotated, the pin 9c is movably engaged with the opening 32a, so that the opening / closing member 9 is moved in the arrow K direction to reach the state shown in FIG.

  Further, when the second rack 17 is moved in the arrow B direction, the open / close lever 32 is pressed by the pin 17d and further rotated counterclockwise. When the opening / closing lever 32 is further rotated, the opening / closing member 32 is further moved in the direction of the arrow K to reach the state shown in FIG.

  In the state shown in FIG. 13, the longitudinal direction of the groove 32b and the moving direction of the pins 17d (that is, the moving direction of the second rack 17) are substantially parallel, and from the state shown in FIG. Even if it is moved in the direction (see FIG. 3), the pin 17d only moves in the groove 32b, and the opening / closing lever 32 does not rotate. Therefore, the opening / closing member 9 stops moving in a state where the opening 3b (see FIG. 3) is opened.

  When closing the opening 3b with the opening / closing member 9, the opening / closing member 9 is moved from the position shown in FIG. 13 to the position shown in FIG.

  As described above, the opening / closing operation of the opening / closing member 9 and the moving operation of the second rack 17 are interlocked.

(Movement operation of traverse base 5)
14-16 is principal part sectional drawing which shows the moving mechanism of the traverse base 5, and is a cross section of the RR part in FIG. FIG. 14 shows a state in which the traverse base 5 is at the standby position and corresponds to the state shown in FIG. FIG. 15 shows a state where the traverse base 5 is moving. FIG. 16 shows a state at the recording / reproducing position, which corresponds to the state shown in FIG. For ease of explanation, only the configuration necessary for the explanation is shown.

  As shown in FIGS. 14 to 16, the second rack 17 has a substantially vertical plate portion, and cam grooves 17 e and 17 f that are substantially Z-shaped and have the same shape are formed in parallel with each other. ing. The cam groove 17e has flat portions 17g and 17i having different height positions at both ends, and an inclined portion 17h that spatially connects the flat portions 17g and 17i. The cam groove 17f has flat portions 17j and 17m having different height positions at both ends, and has an inclined portion 17k that spatially connects the flat portions 17j and 17m.

  Further, pins 5b and 5c are formed on the traverse base 5, and are movably engaged with cam grooves 17e and 17f, respectively.

  Moreover, the arrow G which is the moving direction of the 2nd rack 17 in FIGS. 14-16 points out the same direction as the arrow B in FIG. Moreover, the arrow H which is the moving direction of the traverse base 5 points to the same direction as the arrow C in FIG.

  In the above configuration, in a state where the traverse base 5 is in the standby position shown in FIG. 14, the pin 5b is located at the flat portion 17g of the cam groove 17e, and the pin 5c is located at the flat portion 17j of the cam groove 17f.

  When the second rack 17 is moved in the direction of arrow G from the state shown in FIG. 14, the pins 5b and 5c move in the flat portions 17g and 17j in the cam grooves 17e and 17f, as shown in FIG. It moves into the inclined parts 17h and 17k. The pins 5b and 5c move in the inclined portions 17h and 17k, and the relative position with respect to the second rack 17 rises, so that the traverse base 5 is moved in the arrow H direction.

  Further, when the second rack 17 is moved in the direction of arrow G, the traverse base 5 is moved in the direction of arrow H, while the pins 5b and 5c are moved from the inclined portions 17h and 17k to the flat portion as shown in FIG. Move into 17i and 17m. When the pins 5b and 5c move into the flat portions 17i and 17m, the traverse base 5 is in the recording / reproducing position, and the turntable 1 is moved to a position where the disc can be clamped.

  Note that the movement of the traverse base 5 from the recording / reproducing position to the standby position can be realized by the reverse procedure of the above operation. That is, the traverse base 5 can be moved in the direction opposite to the arrow H by moving the second rack 17 from the position shown in FIG.

  Thus, the movement operation of the traverse base 5 and the movement of the second rack 17 are linked.

  As described above, according to the first embodiment, when the disc 4 is placed on the disc placement surface 3a of the front cover 3, the disc 4 is supported by the centering members 8a to 8d and automatically turns around the disc center. Since the centering is accurately performed at the center of the table, there is no need to position and mount the disk 4 finely, and the disk 4 can be mounted by an easy method.

  Further, the centering members 8a to 8d are rotated by the urging force of the elastic members (springs 13a and 13b) to support the disk 4 with equal force from four directions and to center the disk 4 based on the outer diameter thereof. The mechanism for obtaining the driving force of the member and the mechanism for stopping the rotation of the centering member when the centering is completed can be easily configured without using a complicated configuration using a slip mechanism or a sensor, and the number of parts can be reduced. Have.

  Further, the centering members 8a to 8d are regulating members (rack 16 and 17) for controlling the centering operation in which the elastic members (springs 13a and 13b) rotate in the acting direction of the urging force, and the centering members 8a to 8d are elastic members. By using it for controlling the separation operation from the disc after the centering operation that rotates in the direction opposite to the direction in which the urging force is applied, the number of components can be reduced.

  Further, even when it is difficult to bring the centering members 8a to 8d into contact with the racks 16 and 17, by providing the centering adjustment members 14a and 14b at positions where the racks 16 and 17 can easily come into contact, The rotation of 8a to 8d can be controlled, and the apparatus can be easily configured.

  Further, by increasing the pitch circle diameter of the gears of the centering adjustment members 14a and 14b meshing with the pitch circle diameter of the gears of the centering members 8a to 8d, the rotation of the large centering member can be performed with a small rotation angle of the centering adjustment member. Since the moving angle can be obtained, the rotation angle of the centering adjustment member necessary for the centering operation can be reduced. Therefore, since the amount of movement of the restricting member that controls the rotation of the centering adjusting member can be reduced, there is an effect that the structural dimensions of the apparatus can be reduced.

  Further, since the opening / closing operation of the opening / closing member 9 is linked to the moving operation of the second rack 17, the mechanism for opening / closing the opening / closing member 9 can be reduced, and the device can be reduced in size and weight, Cost reduction can be realized.

  Further, since the movement of the traverse base 5 is linked to the movement of the second rack 17, the mechanism for moving the traverse base 5 can be reduced, the apparatus can be reduced in size and weight, and the cost can be reduced. Can be realized.

  In the present embodiment, the regulating member (rack) regulates the rotation of one centering member in the centering direction among the pair of centering members 8a to 8d provided to face each other. The other centering member that faces is restricted from rotating in a direction away from the disk 4. Therefore, a regulating member dedicated to the centering operation for regulating the rotation of one centering member in the centering direction and a disc separation for regulating the rotation of the other opposite centering member in the direction away from the disc 4. You may provide the control member only for operation | movement separately.

  In the present embodiment, the centering adjusting members 14a and 14b are brought into contact with the racks 16 and 17 (regulating members) to restrict the rotation of the centering adjusting members 14a and 14b, thereby rotating the centering members 8a to 8d. Although the movement is restricted, the racks 16 and 17 (regulating members) may be directly brought into contact with the centering members 8a to 8d to restrict the rotation of the centering members 8a to 8d.

  A cartridge pressing member that presses the cartridge 19 against the disk placement surface 3a to increase the vibration resistance may be provided. In this case, when the cartridge 19 is mounted on the disk mounting surface 3a and the recording / reproducing switch is pressed, first, the cartridge pressing member is moved to press the cartridge 19 against the disk mounting surface 3a. The clamp base 10 is moved, and thereafter, the operation described in the present embodiment is performed to shift to a recordable / reproducible state. Further, when the cartridge 19 is taken out, after the clamp base 10 is moved from the clamp position to the standby position in FIG. 3, the cartridge 19 is released from the pressed state by the cartridge pressing member, and the cartridge pressing member is retracted. The cartridge 19 can be taken out. The cartridge pressing member is provided so as to be retracted to a position that does not become an obstacle when the cartridge is attached or detached.

  In the present embodiment, the clamp base 10 is moved in parallel to the disk mounting surface in order to clamp the disk 4 on the turntable 1. However, the clamp base 10 is moved in parallel from another direction. Or the structure which can rotate the clamp base 10 may be provided. Moreover, you may mount the mechanism clamped only by the turntable 1 without mounting the clamp base 10. FIG.

  Further, the present invention can be applied to a disk device dedicated for recording / reproducing only a disk, a disk device capable of recording / reproducing only a cartridge, and a disk device capable of recording / reproducing both a disk and a cartridge. is there.

  The present invention is not limited to the embodiment described above.

  The disk device according to the present invention can mount a disk on the disk device by an easy and highly flexible method, such as a stationary disk device such as a DVD player and a DVD recorder, a CD player, and a disk drive. It is useful for computers equipped with

1 is a perspective view showing an external appearance of a disk system in a recordable / reproducible state to which a disk device according to Embodiment 1 of the present invention is applied. 1 is a perspective view showing the appearance of a disk system in a disk mountable state according to Embodiment 1. FIG. FIG. 3 is a plan view of the disk device in the disk mountable state in the first embodiment. Side surface sectional drawing of the disk apparatus of Embodiment 1 in the disk mounting possible state FIG. 3 is a plan view of a disc centering operation end state of the disc device according to the first embodiment. FIG. 3 is a plan view of a disc recording / reproducing state of the disc device according to the first embodiment. Side surface sectional view of the disk device in the first embodiment in a recordable / reproducible state of the disk FIG. 6 is a plan view of the centering operation end state of the small-diameter disk of the disk device in the first embodiment. Fig. 3 is a plan view of a mounting state of a case in which a disc is stored in the disc device according to the first embodiment. Side surface sectional drawing of the mounting state of the case which accommodated the disk in the disk apparatus in Embodiment 1 The principal part top view of the position which shows the mechanism which moves the opening-and-closing member in Embodiment 1, and the opening-and-closing member has covered the opening part The principal part top view of the position in the middle of the movement of the opening-and-closing member which shows the mechanism which moves the opening-and-closing member in Embodiment 1 The principal part top view of the position which showed the mechanism which moves the opening / closing member in Embodiment 1, and opened the opening / closing member The main part sectional view in the traverse base in the standby position state showing the mechanism for moving the traverse base in the first embodiment Sectional drawing which shows the mechanism which moves the traverse base in Embodiment 1, and the traverse base is in the middle of movement FIG. 5 is a cross-sectional view of a main part when the traverse base is in a recording / reproducing position state, showing a mechanism for moving the traverse base in the first embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Turntable 2 Optical pick-up 3 Front cover 3a Disc mounting surface 3b Opening 3c Rib 4 Disc 5 Traverse base 8 Centering member 8a 1st centering member 8b 2nd centering member 8c 3rd centering member 8d 4th centering Member 9 Opening / closing member 10 Clamp base 11 Clamper 13a, 13b Spring 14a, 14b Centering adjustment member 16 First rack 17 Second rack 18 Small diameter disk 19 Cartridge

Claims (11)

A disc device capable of recording / reproducing information signals to / from a disc,
An optical pickup for recording / reproducing an information signal with respect to the disc; and a turntable for rotating the disc at a position where the disc is mounted and the optical pickup can record and reproduce an information signal with respect to the disc. A traverse base mounted and arranged to be movable between a recording / playback position and a standby position;
A disk mounting surface on which the disk is mounted, and a turntable formed on the disk mounting surface so that the turntable can be inserted when the traverse base moves between a recording / reproducing position and a standby position. A front cover with an opening,
A centering member for holding and transferring the disk to a position where the center of the disk and the center of the turntable coincide with each other;
The centering member passes through the center of the turntable and intersects the disk mounting surface of the turntable at a right angle with the first plane, and passes through the center of the turntable with a second plane that intersects the first plane at a substantially right angle. A pair of symmetrically abutting on the first plane and symmetrically about the second plane, each being symmetrically rotatable about the second plane. A disk device characterized by the above.   The disk device according to claim 1, wherein a part of the pair of centering members has a gear, and the gears are arranged so as to mesh with each other.   The disk device according to claim 1, wherein the pair of centering members are urged by elastic members at ends opposite to the respective rotation center sides in a direction approaching each other.   2. The closing direction restricting member that restricts rotation of the pair of centering members in the closing direction, and an opening direction restricting member that restricts rotation of the pair of centering members in the opening direction. Disk unit. The centering member passes through the centers of the turntable and the optical pickup and intersects the disk mounting surface of the turntable at a right angle, and passes through the center of the turntable and substantially perpendicular to the first plane. A pair of symmetrically abutting on the disc centering on the second plane intersecting with each other, symmetrically rotating about the second plane, respectively. A first centering member and a second centering member,
A first restricting member and a second restricting member that move in a direction substantially perpendicular to and opposite to a line passing through the center of the turntable and the optical axis of the optical pickup;
A drive mechanism for driving the first restriction member and the second restriction member;
The first restricting member and the second restricting member are:
The first position where the first restricting member restricts the rotation of the first centering member in the centering direction, and the second restricting member restricts the rotation of the second centering member in the centering direction. When,
The first restricting member restricts the rotation of the second centering member in the direction away from the disk, and the second restricting member in the direction away from the disk of the first centering member. Between the first position that restricts the rotation and the second position opposite to each other,
2. The disk device according to claim 1, wherein the disk device is configured to be movable.   6. The disk device according to claim 5, wherein each of the pair of centering members has a gear, and each of the gears is disposed so as to mesh with each other.   6. The disk device according to claim 5, wherein the pair of centering members are biased by elastic members in directions in which end surfaces opposite to the respective rotation center sides approach each other.   A centering adjustment member having a gear meshing with any one of the pair of centering members is provided, and the centering adjustment member is brought into contact with the centering adjustment member to restrict the rotation of the centering adjustment member. 6. The disk device according to claim 5, wherein the rotation of the member is restricted.   7. The disk device according to claim 6, wherein the pitch circle diameter of the gear of the centering adjustment member is made larger than the pitch circle diameter of the gear of the centering member. An opening / closing member capable of opening and closing the opening;
6. The disk device according to claim 5, wherein the opening / closing member is opened / closed in conjunction with the movement of the first restricting member. A pin is provided on the traverse base, a cam groove is provided on the first restricting member, and the pin is movably engaged with the cam groove.
6. The disk device according to claim 5, wherein the cam groove is formed to move the traverse base between a recording / reproducing position and a standby position in conjunction with the movement of the first restricting member.

Images