JP2005251362A - Disk loading device and optical disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To load disks having two or more diameters while achieving miniaturization and light weight. <P>SOLUTION: This disk loading device is provided with a slider 21 movable in the conveying direction of an optical disk, guide members 22, 23 disposed in the slider, moved in a direction orthogonal to the conveying direction of the optical disk, and pressed in a direction to approach each other, guide rollers 37a, 37b, 39a, 39b disposed in the guide members and engaged with the outer peripheral end of the optical disk in ends, rotary arms 24, 25 having base end parts rotatably attached to the slider, and a connection gear 35 disposed in the slider and moved so as to bring the pair of guide members close to or apart from each other. When the optical disk is inserted, the guide members are moved in the direction to be apart from each other by the connection gear, the rotary arms are rotated by the optical disk to engage the guide rollers, the slider is slid in the inserting direction of the optical disk, and the optical disk is moved to a rotating position in the state of being engaged and held with the guide rollers. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a slot-in type disk loading apparatus and an optical disk apparatus that can directly insert and eject a disk such as an optical disk from a disk insertion / removal port.

  For disc drive devices that record and play back optical discs such as CDs (Compact Disk) and DVDs (Digital Versatile Disks), the lid and door provided on the housing are opened, and the discs are inserted directly from the disc insertion / extraction opening facing the outside. There is a slot-in type disk loading device (see Patent Document 1). In the slot-in type disk loading device, when an optical disk is inserted from the disk insertion / removal port, the optical disk inserted is sandwiched between a pair of conveying rollers facing each other, and the pair of conveying rollers rotate in opposite directions. As a result, the optical disk is pulled in, and the internal optical disk is ejected to the outside.

  This disk loading apparatus is built in a small information processing apparatus such as a notebook personal computer. There is a demand for downsizing the disk loading device in conjunction with downsizing of the information processing device. The slot-in type disk loading apparatus is advantageous in reducing the size and weight because it does not use a disk tray, as compared with a disk loading apparatus that loads an optical disk on a disk tray and loads the optical disk. Currently, there are an optical disk with a diameter of 8 cm and an optical disk with a diameter of 12 cm. However, the disk loading device of Patent Document 1 can load an optical disk with a diameter of 8 cm without attaching an adapter, and is easy to use.

  However, even in a slot-in type disk loading device, further downsizing and weight reduction are being made in response to a demand for downsizing of an information processing device to be mounted. In the disk loading apparatus of Patent Document 1, it is necessary to use a roller longer than 12 cm which is the diameter of the optical disk as the transport roller, and the thickness of the pair of upper and lower transport rollers sandwiching the optical disk to be transported increases the thickness of the entire apparatus. Further downsizing and thinning are difficult.

  Therefore, as a slot-in type disk loading device that can be reduced in size and thickness, it is inserted from the disk insertion / removal port by three rotating arms that rotate in cooperation with each other in a plane parallel to the optical disk. There is a device that performs a loading operation of drawing an 8 cm or 12 cm optical disk into the housing and an ejecting operation of ejecting the optical disk from the disk insertion / removal port to the outside of the housing (see, for example, Patent Document 2).

  However, the disk loading apparatus of Patent Document 2 uses three rotating levers, and loads an optical disk having a diameter of 12 cm and an optical disk having a diameter of 8 cm even if the rotating angle of the lever is changed. It is difficult. In the disk drive device of Patent Document 2, in order to be able to load an optical disk with a diameter of 8 cm in addition to an optical disk with a diameter of 12 cm without an adapter, there are three additional rotating levers corresponding to the optical disk with a diameter of 8 cm. It is necessary to install or extend and retract the rotation lever so that two optical disks can be loaded. The disk drive apparatus having such a configuration not only increases the number of parts but also makes the structure complicated, and the entire apparatus cannot be reduced in size or weight.

Japanese Patent Laid-Open No. 7-220353 JP 2002-352498 A

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a novel disc capable of loading two or more types of discs having different diameters while reducing the size and weight of the apparatus. To provide a loading device and an optical disk device.

  In order to solve the above-described problems, a disk loading apparatus according to the present invention includes a slider that is movable in the disk transport direction, and a pair of sliders that are provided on the slider and that are close to and away from each other in a direction perpendicular to the disk transport direction. A guide member and a guide roller provided on each of the guide members, at least at each end, are provided with a guide roller that engages with the outer peripheral portion of the disk, and a proximal end is rotatably attached to the guide member. A moving arm, and a link mechanism that is provided on the slider and moves in a direction in which the pair of guide members approach and separate from each other. Then, when the disk is inserted, the pair of guide members are moved away from each other by the link mechanism, and the rotating arm is rotated by the disk to be provided at each end of each rotating arm. The slider is engaged with at least a pair of guide rollers, and the slider slides in the insertion direction of the disc, whereby the disc is moved to the rotational position of the disc while being engaged and held by the pair of guide rollers. .

  An optical disk apparatus according to the present invention includes a disk rotation driving mechanism for rotating a disk, and recording and / or reproduction for recording and / or reproducing information signals with respect to a rotatable disk mounted on the disk rotation driving mechanism. Reproducing means, and a loading mechanism for conveying the disk over an insertion position and a rotational position by the disk rotation driving mechanism are provided. The loading mechanism is provided on each of the slider that is movable in the disc transport direction, a pair of guide members that are provided on the slider and that are close to and away from each other in a direction orthogonal to the disc transport direction, and the guide member. A guide roller that engages with the outer periphery of the disc at least at each end, a pair of rotating arms that are rotatably attached to the guide member on the base end side, and a pair of the rotating arms that are provided on the slider. And a guide mechanism for moving the guide members in directions approaching and separating from each other. Then, when the disk is inserted, the pair of guide members are moved away from each other by the link mechanism, and the rotating arm is rotated by the disk to be provided at each end of each rotating arm. The slider is engaged with at least a pair of guide rollers, and the slider slides in the insertion direction of the disc, whereby the disc is moved to the rotational position of the disc while being engaged and held by the pair of guide rollers. .

  According to the present invention, when the disk is inserted, the pair of guide members are moved away from each other by the link mechanism, and the rotating arm is rotated by the disk so that it is provided at each end of each rotating arm. Further, when the slider is engaged with at least a pair of guide rollers and the slider slides in the insertion direction of the disc, the disc is moved to the rotational position of the disc while being engaged and held by the pair of guide rollers. Therefore, it is possible to engage and hold discs with different diameters only by the difference in the amount of movement of the pair of guide members apart from each other, and loading two or more types of discs with different diameters while reducing the size and weight of the device. can do.

  Hereinafter, a disk drive apparatus using a disk loading apparatus to which the present invention is applied will be described with reference to the drawings.

  As shown in FIG. 1, a disk drive device 1 to which the present invention is applied is built in a device main body 1001 of a small information processing device 1000 such as a notebook personal computer, and is a CD (Compact Disk) or DVD (Digital Versatile Disk). This is a slot-in type apparatus in which the optical disk 10 having a diameter of 12 cm and 8 cm can be directly inserted through the disk insertion / removal slot without using a disk tray, and recording / reproduction can be performed. Hereinafter, an optical disk having a diameter of 12 cm is also referred to as a first optical disk 10a, and an optical disk having a diameter of 8 cm is also referred to as a second optical disk 10b.

  As shown in FIG. 2, the disk drive device 1 includes a lower case 2 and a top plate 3 that closes the upper surface of the lower case 2 to form a device body 4. The lower case 2 has a disk rotation driving mechanism 11 that rotates the optical disk 10, and a light that irradiates the optical disk 10 mounted on the disk rotation driving mechanism 11 and detects a return light beam reflected by the optical disk 10. A pickup 12 and the like are provided. The disk rotation drive mechanism 11 and the optical pickup 12 are disposed on a base 26 attached to the lower case 2.

  As shown in FIG. 2, the disk rotation drive mechanism 11 has a spindle motor 11a as a drive source, and a disk table 11b is integrally attached to a drive shaft of the spindle motor 11a. The disc table 11b is integrated with the optical disc 10 by engaging the center hole of the optical disc 10 with the centering portion at the center, and the spindle motor 11a is driven to rotate the optical disc 10 at a constant linear velocity or angular velocity. To do.

  The optical pickup 12 condenses the light beam emitted from the semiconductor laser serving as the light source by the objective lens 12 a and irradiates the signal recording surface of the optical disc 10, and returns the light beam reflected by the signal recording surface of the optical disc 10. Is detected by a photodetector, and an information signal is recorded on the optical disc 10 or an information signal recorded on the optical disc 10 is read. The optical pickup 12 includes a biaxial actuator that displaces the objective lens 12a in a focusing direction parallel to the optical axis of the objective lens 12a and a tracking direction orthogonal to the optical axis direction of the objective lens 12a. Focusing control and tracking control of the objective lens 12a with respect to the optical disk 10 are performed based on the detection signal from the optical disk 10 detected by the detector.

  Although not shown, the optical pickup 12 as described above is moved in the radial direction of the optical disk 10 mounted on the disk rotation driving mechanism 11 by a pickup feeding mechanism. Specifically, the optical pickup 12 is movably supported by a pair of guide shafts extending in the radial direction of the optical disk 10 mounted on the disk rotation drive mechanism 11, and is connected to a drive motor by a gear train or the like. The optical disk 10 is moved in the radial direction by a screw.

  As shown in FIG. 1, an optical disc 10 is inserted into the disc drive apparatus 1 from the direction of arrow A in FIG. As shown in FIGS. 2, 3, and 4, the disk drive device 1 includes, as a loading mechanism 20 for the optical disk 10, an arrow A direction and a counter arrow A direction in FIGS. A pair of guide members 22 and 23 that are provided on the slider 21 and move in the direction of the arrow B and the direction of the opposite arrow B in FIGS. 3 and 4 orthogonal to the transport direction of the optical disk 10; A pair of rotating arms 24 and 25 provided on the pair of guide members 22 and 23 are provided.

  As shown in FIGS. 3 and 4, the slider 21 is attached to a base 26 integrated with the lower case 2, and although not shown, a plurality of linear guides having a plurality of guide protrusions provided on the base 26. By engaging with the groove, the optical disk 10 is slidably mounted in the direction of arrow A and the direction of the opposite arrow A in FIGS.

  The drive mechanism 27 of the slider 21 is provided on the base 26 as shown in FIG. Specifically, as shown in FIG. 3, the drive mechanism 27 of the slider 21 is attached to a release member 31 connected to a drive motor 28 serving as a drive source via a plurality of gear trains 29, and the release member 31. A drive member 32 that slides the slider 21 and a coil spring 33 that serves as an urging member that connects the release member 31 and the drive member 32 are provided. The release member 31 is provided with a rack gear 31b. The rack gear 31b meshes with the final stage of the gear train 29, and the driving force of the drive motor 28 is transmitted. The coil spring 33 is engaged with the engagement portion 31a of the release member 31 and the engagement portion 32a of the drive member 32, so that the release member 31 and the drive member 32 are normally integrated with each other in the direction of arrow A in FIG. The drive member 32 is slid in the direction of arrow A, and the drive member 32 slides the slider 21 in the direction of arrow A and the direction of the reverse arrow A in FIG. Further, when the drive member 32 pulls the optical disk 10 to the rotation position, the drive member 32 becomes impossible to move by striking against the stopper 3b provided on the top plate 3 or the base 26, and the drive force of the drive motor 28 is directly transmitted. Only the member 31 slides in the direction of arrow A in FIG. 3 with respect to the drive member 32 against the urging force of the coil spring 33.

  A pair of first guide member 22 and second guide member 23 are attached to the slider 21 slid by the drive mechanism 27. These first and second guide members 22 and 23 are attached so as to be movable in the arrow B direction and the counter arrow B direction in FIGS. 3 and 4 orthogonal to the transport direction of the optical disk 10.

  The first guide member 22 is formed by connecting a first piece 22a and a second piece 22b with a connecting portion 22c, and the first piece 22a and the second piece 22b are shown in FIG. And the some guide groove 22d which guides the movement of the arrow B direction and the opposite arrow B direction in FIG. 4 is formed. A guide protrusion 21a provided on the slider 21 is engaged with the guide groove 22d. The second guide member 23 is provided to overlap the first guide member 22, and is formed by connecting the first piece 23a and the second piece 23b with a connecting portion 23c. The first piece 23a and the second piece 23b are formed with a plurality of guide grooves 23d for guiding the movement in the direction of the arrow B and the direction of the opposite arrow B in FIGS. A guide protrusion 21a provided on the slider 21 is engaged with the guide groove 23d.

  A first rack gear 22e is provided at the connecting portion 22c of the first guide member 22, and a second rack gear 23e is provided at the connecting portion 23c of the second guide member 23. The first rack gear 22e and the second rack gear 23e are provided so as to face each other in the arrow B direction and the counter arrow B direction in FIGS. 3 and 4, and the first guide member 22 and the second guide member 23 The connecting gear 35 serving as a link mechanism for linking the two is engaged. The connecting gear 35 is provided on the slider 21. Therefore, the first guide member 22 and the second guide member 23 are connected by the connection gear 35, and thus move in the directions indicated by the arrows B and the opposite arrows B in FIGS.

  The second guide member 23 is urged in the direction of arrow B in FIGS. 3 and 4 by a coil spring 36 that is an urging member. Specifically, one end of the coil spring 36 is locked to a locking piece 36 a provided on the connecting portion 23 c of the second guide member 23, and the other end is locked to a locking piece 36 b provided on the slider 21. By this, it is urged in the direction of the opposite arrow B in FIGS. As a result, the first guide member 22 connected to the second guide member 23 via the connecting gear 35 is in a state in which the basic state has moved in the direction indicated by the arrow B in FIGS. ing.

  A first rotating arm 24 is attached to the distal end portion of the first piece 22 a of the first guide member 22, and a second portion is attached to the distal end portion of the first piece 23 a of the second guide member 23. A rotating arm 25 is attached.

  The first rotation arm 24 is pivotally attached to a support shaft 24a provided at one end of the first piece 22a of the first guide member 22 at one end serving as a base end. In addition, first guide rollers 37a and 37b with which the outer peripheral portion of the optical disk 10 is engaged are provided at both ends of the distal end portion and the proximal end portion. The first rotating arm 24 is an urging member that spans between a locking piece 38 a provided at the base end and a locking piece 38 b provided on the first piece 22 a of the first guide member 22. A certain tension coil spring 38 is urged to rotate in the direction of arrow C in FIGS. The first rotating arm 24 is provided with a guide protrusion 24b in the middle. The guide protrusion 24b is engaged with a substantially arc-shaped guide groove 24c provided in the first guide member 22. Yes. As for the 1st rotation arm 24, a rotation area | region is controlled when the guide protrusion 24b contact | abuts to the both ends of the guide groove 24c.

  The second turning arm 25 is rotatably attached to a support shaft 25a provided at one end of the first guide 23a of the second guide member 23 at one end serving as a base end. In addition, second guide rollers 39a and 39b with which the outer peripheral portion of the optical disc 10 is engaged are provided at both ends of the distal end portion and the proximal end portion. The second rotating arm 25 is an urging member that spans between a locking piece 41 a provided at the base end and a locking piece 41 b provided on the first piece 23 a of the second guide member 23. A certain tension coil spring 41 is urged to rotate in the direction of arrow C in FIGS. The second turning arm 25 is also provided with a guide protrusion 25b in the middle, and the guide protrusion 25b is engaged with a substantially arcuate guide groove 25c provided in the second guide member 23. As for the 2nd rotation arm 25, a rotation area | region is controlled when the guide protrusion 25b contact | abuts to the both ends of the guide groove 25c.

  In the basic state, the first and second rotating arms 24 and 25 that are urged to rotate in the direction of arrow C in FIGS. When the second guide rollers 37a and 39a are separated from each other and the first and second guide rollers 37b and 41b on the opposite side are close to each other, and the optical disk 10 is inserted, the second guide rollers 37a and 39a are supported on the support shafts 24a and 25a. The first and second guide rollers 37b and 41b are separated from each other in the direction opposite to the arrow C in FIGS. 3 and 4 and formed in the circumferential direction of the first and second guide rollers 37a, 37b, 39a and 39b, for example. The outer peripheral portion of the optical disc 10 is engaged and held by the engaged groove. Further, when the optical disk 10 is ejected, the first and second rotating arms 24 and 25 which are urged to rotate in the direction of arrow C in FIGS. 3 and 4 by the tension coil springs 38 and 41 push out the optical disk 10. Also functions as an eject arm.

  The first and second rotating arms 24 and 25 adjust the ejecting force that presses the optical disk 10 outward when the optical disk 10 is ejected by adjusting the biasing force of the tension coil springs 38 and 41 that serve as biasing members. can do. Further, the first and second rotating arms 24 and 25 can change the length of the guide grooves 24c and 25c with which the guide protrusions 24b and 25b are engaged to adjust the amount of rotation, so that the optical disk 10 is ejected. The time during which the optical disc 10 is pressed can be varied. As described above, the first and second rotating arms 24 and 25 that function also as the eject arm adjust the rotation biasing force and the rotation area of the optical disk 10 when the optical disk 10 is ejected. The amount of protrusion from the insertion / removal port can be adjusted.

  In addition, as shown in FIGS. 2, 3 and 5, the disk drive apparatus 1 detects detection of insertion of an optical disk 10, specifically, a large-diameter first optical disk 10a and a small-diameter second optical disk 10b. A mechanism 50 is provided. Specifically, the detection mechanism 50 includes a rotating member 51 provided on the base 26. This rotating member 51 is attached so as to be rotatable in the direction of arrow D and the direction of counter arrow D in FIGS. 3 and 5 that are close to and away from the optical disc 10 inserted around a support shaft 51a provided on the base. ing. The rotating member 51 has a coil spring 52 serving as an urging member spanned between a locking piece 52a provided on the base 26 and a locking piece 52b provided on the rotating member 51, and FIG. In FIG. 5, it is urged to rotate in the direction of arrow D. The rotation member 51 is formed with a guide groove 51b for restricting rotation, and a guide protrusion 51c provided on the base 26 is engaged with the guide groove 51b.

  The rotating member 51 is provided with a substantially L-shaped groove portion 54 that opens along the conveyance path side of the optical disc 10 and is formed along the insertion direction of the optical disc 10. Specifically, the groove portion 54 includes a short side portion 54a and a long side portion 54b. The groove 54 is engaged with the guide protrusion 25 b of the second rotating arm 25. When the large-diameter first optical disc 10a is inserted, the guide protrusion 25b of the second rotating arm 25 enters from the opening end of the short side portion 54a, and then as the second optical disc 10 is inserted. To the long side portion 54b and presses one side edge portion of the long side portion 54b. One side edge portion of the long side portion 54 b is a first pressed portion 55 that is pressed by the guide protrusion 25 b of the second rotating arm 25.

  The rotating member 51 is a second pressed portion 53 whose side edge on the conveyance path side of the optical disc 10 is pressed against the outer peripheral portion of the second optical disc 10b having a small diameter.

  The detection mechanism 50 includes a detection element 56 that detects that the first optical disc 10a or the second optical disc 10b having a different diameter has been inserted. The rotating member 51 is provided with a pressing piece 57 that presses the operation element of the detection element 56. In the pressing piece 57, the first optical disk 10a having a large diameter is inserted, the first pressed portion 55 in the groove 54 is pressed by the guide protrusion 25b of the second rotating arm 25, and the second pressing member 57 having a small diameter is used. When the second pressed portion 53 is pressed by the outer peripheral portion of the optical disk 10b, the second pressed portion 53 rotates about the support shaft 51a in the counter arrow D direction in FIGS. 3 and 5 against the urging force of the coil spring 52. The operation piece of the detection element 56 is pressed by the pressing piece 57. When the detection element 56 is pressed by the pressing piece 57, the detection element 56 generates a detection signal indicating that the first optical disk 10a or the second optical disk 10b has been inserted, and outputs the detection signal to the control circuit. At this timing, the drive motor 28 of the drive mechanism 27 that slides the slider 21 described above is driven.

  FIGS. 6A to 6C show the state of the detection mechanism 50 when the large-diameter first optical disc 10a is inserted. As shown in FIG. 6 (A), when the first optical disk 10a is inserted, first, the outer periphery of the first optical disk 10a is connected to the first and second rotating arms 24, 25. When the first optical disk 10a is inserted and pressed by engaging the second guide rollers 37a and 39a, the first and second guide rollers 37a and 39a are provided. As shown in FIG. 6 (B), the two rotating arms 24 and 25 rotate about the support shafts 24a and 25a in a direction opposite to the arrow C in FIG. 6 (B). Then, the guide protrusion 25 b of the second rotation arm 25 engages with the short side portion 54 a of the groove portion 54 of the rotation member 51. Further, when the first optical disc 10a is inserted, as shown in FIG. 6C, the guide protrusion 25b engages with the long side portion 54b of the groove portion 54 and presses the first pressed portion 55, The rotating member 51 rotates in a direction opposite to the arrow D in FIG. The rotating member 51 rotates when the first pressed portion 55 is pressed by the guide protrusion 25 b and presses the detection element 56 by the pressing piece 57.

  7A to 7C show the state of the detection mechanism 50 when the small-diameter second optical disc 10b is inserted. As shown in FIG. 7A, when the second optical disk 10b is inserted, first, the outer periphery of the second optical disk 10b is the first and second rotating arms 24, 25 of the first and second rotating arms 24, 25. When the second optical disk 10b is inserted and pressed by engaging the second guide rollers 37a and 39a, the first and second guide rollers 37a and 39a provided with the first and second guide rollers 37a and 39a are provided. As shown in FIG. 7B, the rotating arms 24 and 25 rotate about the support shafts 24a and 25a in a direction opposite to the arrow C in FIG. 7B. Here, since the second optical disk 10b has a smaller diameter than the first optical disk 10a, the first and second rotating arms 24 and 25 are positioned closer to each other than when the first optical disk 10a is inserted. Therefore, the guide protrusion 25 b of the second rotation arm 25 does not engage with the short side portion 54 a of the groove portion 54 of the rotation member 51. However, as shown in FIG. 7C, when the second optical disk 10b is further inserted, the second pressed portion 53 of the rotating member 51 is pressed by the guide protrusion 25b. Then, the rotation member 51 rotates in the direction opposite to the arrow D in FIG. The rotating member 51 rotates when the second pressed portion 53 is pressed by the guide protrusion 25 b and presses the detection element 56 with the pressing piece 57.

  Further, as shown in FIGS. 2, 3 and 8, the disk drive device 1 includes first and second guide rollers 37a, 37b, 39a, which are engaged with the optical disk 10 inserted to the rotational position. A release mechanism 60 for releasing the engaged state of 39b is provided. Specifically, the release mechanism 60 has a cam plate 61 provided on the top plate 3 side. The cam plate 61 is a release member that releases the engaged state of the first and second guide rollers 37a, 37b, 39a, and 39b that are engaged with the optical disk 10 that has been inserted to the rotational position. In addition, the optical disk 10 is attached so as to be movable in the direction of the arrow A and the direction of the opposite arrow A in FIG. Specifically, the cam plate 61 is guided and moved in the transport direction of the optical disc 10 by engaging a guide protrusion 61 a provided on the top plate 3 with a guide groove 61 b provided on the cam plate 61. The area is regulated. One end of the cam plate 61 is locked to a locking portion 62 a provided on the cam plate 61, and the other end is a coil spring 62 that is a biasing member locked to a locking portion 62 b provided on the top plate 3. Therefore, the optical disc 10 is biased in the direction of arrow A in FIG.

  The cam plate 63 further rotates the first and second rotating arms 24 and 25 when the large-diameter first optical disk 10a is inserted into both side edges in the same direction as the moving direction. , 63 are provided. The cam pieces 63, 63 are provided with first inclined cam portions 63a, 63a that become higher from the upper side toward the lower side in the direction of arrow A in FIG. The first inclined cam portions 63a, 63a are in contact with the first and second guide rollers 37b, 39b of the first and second rotating arms 24, 25, and the first and second rotating arms 24, A force is applied to rotate the shaft 25 around the support shafts 24a and 25a in the direction of the opposite arrow C in FIG. As a result, the first guide member 22 and the second guide member 23 move in directions away from each other, and the engagement state of the first and second guide rollers 37a, 37b, 39a, 39b is changed to the first optical disc. Release from the outer periphery of 10a.

  Further, the cam groove 64 further rotates the first and second rotating arms 24 and 25 when the second optical disk 10b having a small diameter is inserted into the cam plate 61 at the side edge orthogonal to the moving direction. , 64 are provided. The cam grooves 64, 64 are provided with second inclined cam portions 64a, 64a that become higher from the upper side toward the lower side in the direction of arrow A in FIG. The second inclined cam portions 64a and 64a are in contact with the first and second guide rollers 37b and 39b of the first and second rotating arms 24 and 25, and the first and second rotating arms 24 and A force is applied to rotate the shaft 25 around the support shafts 24a and 25a in the direction of the opposite arrow C in FIG. As a result, the first guide member 22 and the second guide member 23 move in directions away from each other, and the engagement state of the first and second guide rollers 37a, 37b, 39a, 39b is changed to the second. Release from the outer periphery of the optical disk 10b.

  The cam plate 61 as described above is moved by a rotation lever 65 attached to the top plate 3. The rotation lever 65 is rotatably supported by a support shaft 65a provided on the top plate 3 in the middle of the rotation lever 65, and a pressing protrusion 66 that presses the cam plate 61 is provided on one end side, and on the other end side. 3 and 8 is provided with a pressed protrusion 67 that is pressed by the distal end portion of the release member 31 of the drive mechanism 27 that drives the slider 21 described above.

  The rotation control of the rotation lever 65 is performed by the release member 31 of the drive mechanism 27 that drives the slider 21 described above. As described above, the driving force of the driving motor 28 is transmitted to the release member 31 that is integrally connected to the driving member 32 by the coil spring 33. When it is detected by the detection element 56 of the detection mechanism 50 that the optical disk 10 has been inserted, the drive motor 28 is driven, and the slider 21 is connected via the release member 31 and the coil spring 33 to which the drive force of the drive motor 28 is transmitted. Then, it is slid in the direction of arrow A in FIG. The slider 21 slides on the optical disc 10 engaged and held by the first and second guide rollers 37a, 37b, 39a, 39b of the first and second rotating arms 24, 25 attached to the slider 21. To move to the rotation position. At this time, the drive member 32 that directly drives the slider 21 comes into contact with the stopper 32b provided on the top plate 3 or the base 26 and cannot slide in the direction of arrow A in FIG. 8, and the drive force of the drive motor 28 is directly transmitted. Only the release member 31 is moved in the direction of arrow A in FIG. The distal end portion of the release member 31 is a pressing portion 31c that presses the pressed protrusion 67 of the rotating lever 65. The rotating lever 65 is pressed by the pressing portion 31c by the pressing portion 31c as shown in FIG. It rotates in the direction of arrow E in FIG. The rotation lever 65 rotates in the direction of arrow E in FIGS. 3 and 8, thereby pressing the cam plate 61 with the pressing protrusion 66, and the cam plate 61 resists the urging force of the coil spring 62 in FIG. 3 and FIG. Slide in the direction of the arrow A in FIG.

  9A and 9B show the state of the release mechanism 60 when the large-diameter first optical disc 10a is inserted. As shown in FIG. 9A, the loading mechanism 20 pulls the first optical disk 10a to the rotation position. Then, the drive member 32 that directly drives the slider 21 constituting the drive mechanism 27 abuts against the stopper 32b on the top plate 3 or the base 26 and stops. At this time, the first and second guide rollers 37a, 37b, 39a, and 39b still hold the first optical disk 10a and are in a non-rotatable state. Even after the drive motor 28 pulls the first optical disk 10a to the rotation position, the release member 31 to which the drive force from the drive motor 28 is directly transmitted by continuing to drive the drive is connected via the coil spring 33. The member 32 moves in the direction of arrow A in FIG. 9A, and the pressing portion 31 c at the tip of the releasing member 31 presses the pressed protrusion 67 of the rotating lever 65 that constitutes the releasing mechanism 60. Accordingly, the turning lever 65 rotated in the direction of arrow E in FIG. 9A presses the cam plate 61 with the pressing protrusion 66. As shown in FIG. 9B, the cam plate 61 pressed by the turning lever 65 slides in the direction of the arrow A in FIG. 9B against the urging force of the coil spring 62. Then, the first and second guide rollers 37b of the first and second rotating arms 24, 25 rotating in the direction opposite to the arrow C in FIG. 8 by engaging and holding the first optical disk 10a, 39b is further pressed by the first inclined cam portions 63a and 63a of the cam plate 61 so as to be further separated. As a result, the first guide member 22 and the second guide member 23 move in a direction in which the first guide member 22 and the second guide member 23 are separated from each other, and the first optical disc 10a is moved between the first and second guide rollers 37a, 37b, 39a, and 39b. When the engagement state is released and the disc table 11b of the disc rotation drive mechanism 11 is mounted, the disc table 11b can rotate integrally.

  FIGS. 10A and 10B show the state of the release mechanism 60 when the small-diameter second optical disc 10b is inserted. As shown in FIG. 10A, the loading mechanism 20 pulls the second optical disk 10b to the rotation position. Then, the drive member 32 that directly drives the slider 21 constituting the drive mechanism 27 abuts against the stopper 32 b of the top plate 3 and stops. At this time, the first and second guide rollers 37a, 37b, 39a, and 39b still hold the second optical disk 10b and are in a non-rotatable state. Even after the drive motor 28 pulls the second optical disk 10b to the rotational position, the release member 31 to which the drive force from the drive motor 28 is directly transmitted by continuing to drive the drive is connected via the coil spring 33. The member 32 moves in the direction of arrow A in FIG. 10A, and the pressing portion 31 c at the distal end of the release member 31 presses the pressed protrusion 67 of the rotating lever 65 constituting the release mechanism 60. Thereby, the turning lever 65 rotated in the direction of arrow E in FIG. 10A presses the cam plate 61 with the pressing protrusion 66. The cam plate 61 pressed by the rotation lever 65 slides in the direction of the arrow A in FIG. 10B against the urging force of the coil spring 62 as shown in FIG. Here, the rotating arms 24 and 25 that engage and hold the small-diameter second optical disk 10b with the first and second guide rollers 37a, 37b, 39a, and 39b engage and hold the first optical disk 10a. Rotate at positions closer to each other than if they are. For this reason, the first and second guide rollers 37b and 39b enter the cam grooves 64 and 64 of the cam plate 61 and engage and hold the second optical disk 10b to rotate in the direction opposite to the arrow C in FIG. The first and second guide rollers 37b and 39b of the moving first and second rotating arms 24 and 25 are pressed in the direction of further separation by the second inclined cam portions 64a and 64a of the cam plate 61. As a result, a further rotating force is given. As a result, the first guide member 22 and the second guide member 23 move away from each other, and the second optical disk 10b is engaged with the first and second guide rollers 37a, 37b, 39a, 39b. The combined state is released and the disc table 11b of the disc rotation drive mechanism 11 is attached to the disc table 11b so that it can rotate integrally with the disc table 11b.

  Next, a series of operations from when the large-diameter first optical disk 10a is inserted into the disk drive device 1 configured as described above until recording and reproduction are possible will be described. As shown in FIGS. 4 and 11, when the optical disk 10 is not inserted, the loading mechanism 20 is in a state in which the slider 21 is slid in the direction of the arrow A in FIG. Further, the first guide member 22 and the second guide member 23 are in a state of sliding in the direction of the arrow A in FIGS. Further, the first and second rotating arms 24 and 25 are rotated about the support shafts 24a and 25a in the direction opposite to the arrow C in FIG. 4 and FIG. The second guide rollers 37a and 39a are in a separated state.

  When the large-diameter first optical disk 10a is inserted from the insertion / removal port of the disk drive device 1, the outer periphery of the first optical disk 10a is engaged with the first and second guide rollers 37a and 39a that are separated from each other. Match. Further, when the first optical disk 10a is manually pushed in, as shown in FIGS. 4 and 12, the first and second rotating arms 24 and 25 have the supporting shafts 24a and 25b as fulcrums as shown in FIGS. 12, the first optical disk 10a is engaged and held by the first and second guide rollers 37a, 37b, 39a, and 39b.

  Here, as shown in FIGS. 6A and 6C, the guide protrusion 25 b of the second rotating arm 25 engages with the short side portion 54 a of the groove portion 54 of the rotating member 51, and then , Engages with the long side portion 54b and presses the first pressed portion 55. Thereby, the rotation member 51 rotates in the direction opposite to the arrow D in FIGS. 12 and 6C. The rotating member 51 rotates when the first pressed portion 55 is pressed by the guide protrusion 25 b and presses the detection element 56 by the pressing piece 57. When the detection element 56 is pressed by the pressing piece 57, the detection element 56 generates a detection signal indicating that the first optical disc 10a has been inserted, and outputs the detection signal to the control circuit. The drive motor 28 of the drive mechanism 27 that slides is driven.

  As a result, as shown in FIGS. 4 and 13, the slider 21 slides in the direction of arrow A in FIGS. 4 and 13, and is engaged and held by the first and second guide rollers 37a, 37b, 39a, and 39b. The first optical disk 10a is pulled to the rotation position. Specifically, the slider 21 slides in the direction of arrow A in FIGS. 4 and 13 until the drive member 32 of the drive mechanism 27 hits the top plate 3 or the stopper 32 b on the base 26.

  As shown in FIGS. 9 and 14, the drive member 32 that directly drives the slider 21 abuts against a stopper 32 b provided on the top plate 3 or the base 26 and cannot slide in the direction of arrow A in FIG. By continuing to drive, only the release member 31 to which the driving force of the drive motor 28 is directly transmitted moves in the direction of arrow A in FIGS. 9 and 14. The pressing portion 31c at the tip of the release member 31 presses the pressed protrusion 67 of the rotating lever 65 provided on the top plate 3, and rotates the rotating lever 65 in the direction of arrow E in FIGS. . The rotation lever 65 rotates in the direction of arrow E in FIGS. 9 and 14, thereby pressing the cam plate 61 with the pressing protrusion 66, and the cam plate 61 resists the biasing force of the coil spring 62 in FIG. 9 and FIG. It slides in the direction of the opposite arrow A in FIG.

  Then, the first and second guides of the first and second rotating arms 24 and 25 rotating in the direction of the opposite arrow C in FIGS. 9 and 14 by engaging and holding the first optical disk 10a. The rollers 37b and 39b are given further rotating force when pressed in the direction of further separation by the first inclined cam portions 63a and 63a of the cam plate 61. As a result, the first guide member 22 and the second guide member 23 are moved away from each other, and the first optical disk 10a is engaged with the first and second guide rollers 37a, 37b, 39a, 39b. The combined state is released and the disc table 11b of the disc rotation drive mechanism 11 is attached to the disc table 11b so that it can rotate integrally with the disc table 11b. The first optical disk 10a can be rotated to the disk table 11b of the disk rotation drive mechanism 11 by raising the base 26 on which the disk drive rotation mechanism 11, the optical pickup 12 and the like are disposed by a chucking mechanism (not shown). It is installed in a state.

  As shown in FIG. 3, the first optical disc 10 a is rotated so that the linear velocity or angular velocity attached to the disc table 11 b is constant, and a light beam is emitted from the optical pickup 12. The optical pickup 12 performs focusing control and tracking control of the objective lens 12a by detecting the return light beam reflected by the first optical disc 10a. The disk drive device 1 reproduces the information signal read by the optical pickup 12 by a signal processing circuit (not shown), and irradiates the recording signal generated by the signal processing circuit with the optical beam by the optical pickup 12. Record.

  When unloading the first optical disk 10a, the drive motor 28 constituting the drive mechanism 27 is driven in reverse, opposite to the loading. As a result, the slider 21 slides in the direction of the arrow A in FIG. Then, when the slider 21 moves further forward (about 2 to 3 mm) than the initial state and enters the state of FIG. 19, the inclined side tip portion 71 a of the first guide member 22 is a protrusion provided on the base 26. Next, the inclined cam portion 71b that comes into contact with 71 and continues to the inclined side tip portion 71a of the first guide member 22 moves in a direction in which the first guide member 22 and the second guide member 23 are separated from each other. . When the distance between the guide roller 37a at the distal end of the first guide member 22 and the guide roller 39a at the distal end of the second guide member 23 increases beyond the diameter of the first optical disc 10a, the first optical disc 10a is removed. The force for engaging and holding is lost, and only the urging force by the first and second rotating arms acts on the first optical disk 10a. Then, the first optical disk 10 a is pushed out from the disk insertion / removal port of the disk drive device 1 by the guide roller 37 b at the proximal end of the first guide member 22 and the guide roller 39 b at the proximal end of the second guide member 23. Are discharged. Thereafter, the drive motor 28 constituting the drive mechanism 27 is driven in the same direction during loading and stops when the state shown in FIG. 11 is reached.

  Next, a series of operations from when the small-diameter second optical disk 10b is inserted into the disk drive apparatus 1 until recording / reproduction will be described.

  When the small-diameter second optical disk 10b is inserted from the insertion / removal port of the disk drive device 1, the outer periphery of the second optical disk 10b is separated from each other as shown in FIGS. The second guide rollers 37a and 39a are engaged. Further, when the second optical disk 10b is manually pushed, as shown in FIGS. 4 and 16, the first and second rotating arms 24 and 25 are supported by the support shafts 24a and 25b as shown in FIGS. 16, the second optical disk 10b is engaged and held by the first and second guide rollers 37a, 37b, 39a, and 39b.

  Here, as shown in FIGS. 7A and 7C, since the second optical disk 10b has a smaller diameter than the first optical disk 10a, the first and second rotating arms 24 and 25 are Rotate at positions closer to each other than when the second optical disk 10b is inserted. For this reason, the guide protrusion 25 b of the second rotation arm 25 does not engage with the short side portion 54 a of the groove portion 54 of the rotation member 51. When the second optical disc 10b is further inserted, the second pressed portion 53 of the rotating member 51 is pressed by the guide protrusion 25b. Then, the rotation member 51 rotates in the direction opposite to the arrow D in FIGS. 16 and 7C. The rotating member 51 rotates when the second pressed portion 53 is pressed by the guide protrusion 25 b and presses the detection element 56 with the pressing piece 57. When the detection element 56 is pressed by the pressing piece 57, the detection element 56 generates a detection signal indicating that the second optical disc 10b has been inserted, and outputs the detection signal to the control circuit. The drive motor 28 of the drive mechanism 27 that slides is driven. As a result, as shown in FIGS. 4 and 16, the slider 21 slides in the direction of arrow A in FIGS. 4 and 16, and is engaged and held by the first and second guide rollers 37a, 37b, 39a, and 39b. The second optical disk 10b is pulled to the rotational position. Specifically, the slider 21 slides in the direction of arrow A in FIGS. 4 and 16 until the driving member 32 of the driving mechanism 27 hits the stopper 32b on the top plate 3 or the base 26.

  As shown in FIGS. 10 and 17, the drive member 32 that directly drives the slider 21 abuts against a stopper 32b provided on the top plate 3 or the base 26, and cannot slide in the direction of arrow A in FIG. By continuing to drive, only the release member 31 to which the driving force of the drive motor 28 is directly transmitted moves in the direction of arrow A in FIGS. 10 and 17. The pressing portion 31c at the tip of the release member 31 presses the pressed protrusion 67 of the rotating lever 65 provided on the top plate 3, and rotates the rotating lever 65 in the direction of arrow E in FIGS. . The rotation lever 65 rotates in the direction of arrow E in FIGS. 10 and 17, thereby pressing the cam plate 61 with the pressing protrusion 66, and the cam plate 61 resists the biasing force of the coil spring 62 in FIG. 10 and FIG. It slides in the direction of the opposite arrow A in FIG.

  Here, the rotating arms 24 and 25 that engage and hold the small-diameter second optical disk 10b with the first and second guide rollers 37a, 37b, 39a, and 39b engage and hold the first optical disk 10a. The second optical disk 10b is engaged and held at a position closer to each other compared to when it is in operation. For this reason, the first and second guide rollers 37b and 39b enter the cam grooves 64 and 64 of the cam plate 61 and engage and hold the second optical disk 10b to rotate in the direction opposite to the arrow C in FIG. The first and second guide rollers 37b and 39b of the moving first and second rotating arms 24 and 25 are pressed in the direction of further separation by the second inclined cam portions 64a and 64a of the cam plate 61. By doing so, a force that is further rotated works. As a result, as shown in FIG. 18, since the first guide member 22 and the second guide member 23 move in a direction away from each other, the second optical disk 10b has the first and second guide rollers 37a. , 37b, 39a, 39b are disengaged and can be rotated integrally with the disk table 11b while being mounted on the disk table 111b of the disk rotation drive mechanism 11. The second optical disk 10b can be rotated to the disk table 11b of the disk rotation driving mechanism 11 by raising the base 26 on which the disk driving rotation mechanism 11, the optical pickup 12 and the like are disposed by a chucking mechanism (not shown). It is installed in a state.

  As in the case of the first optical disk 10a, the second optical disk 10b is rotated by the disk rotation driving mechanism 11, and the information signal is recorded and reproduced by the optical pickup 12.

  When unloading the second optical disk 10b, the drive motor 28 constituting the drive mechanism 27 is driven in reverse, opposite to the loading. Then, when the slider 21 moves further forward (about 2 to 3 mm) than the initial state and enters the state of FIG. 20, the inclined side tip portion 71 a of the first guide member 22 is a protrusion provided on the base 26. After coming into contact with 72, the first guide member 22 and the second guide member 23 are moved away from each other by the inclined cam portion 71b of the first guide member 22. When the distance between the guide roller 37a at the distal end of the first guide member 22 and the guide roller 39a at the distal end of the second guide member 23 is larger than the diameter of the second optical disc 10b, the second optical disc 10b is engaged. The holding force is lost, and only the urging force by the first and second rotating arms acts on the second optical disk 10b. Then, the second optical disk 10b is pushed out from the disk insertion / removal port of the disk drive device 1 by the guide roller 37b at the proximal end of the first guide member 22 and the guide roller 39b at the proximal end of the second guide member 23. Are discharged. Thereafter, the drive motor 28 constituting the drive mechanism 27 is driven in the same direction during loading, and stops when the state shown in FIG. 15 is reached.

    According to the disk drive device 1 configured as described above, the first and second guide rollers 37a, 37b, 41a, 41b provided on the first and second rotating arms 24, 25 are used as the first and second guide rollers 37a, 37b, 41a, 41b. By engaging and holding the second optical disks 10a and 10b and driving the slider 21 with the drive motor 28, the first and second optical disks 10a and 10b can be transported easily and reliably. Further, in the disk drive device 1, in both cases of the first optical disk 10a and the second optical disk 10b having different diameters, the first rotating arm 24 and the second rotating arm 25 are supported by the support shafts 24a and 25a. And the first and second guide rollers 37a, 37b, 39a, 39b can be changed by simply changing the proximity distance between the first guide member 22 and the second guide member 23. The first optical disk 10a and the second optical disk 10b can be engaged and held. Therefore, the disc drive apparatus 1 can transport the first optical disc 10a and the second optical disc 10b having different diameters with the loading mechanism 20 having a simple configuration, so that the overall thickness can be reduced and the size can be reduced. Can be achieved.

  Further, in the disk drive device 1, the outer peripheral portions of the first and second optical disks 10a, 10b are engaged and held by the first and second guide rollers 37a, 37b, 41a, 41b, so that the first drive is performed. And it can convey to the exact position, without depending on the roughness of the outer peripheral part of 2nd optical disk 10a, 10b. Further, the first rotating arm 24 and the second rotating arm 25 are rotated and biased by the tension coil springs 38 and 41, so that the first and second optical disks 10a and 10b can be ejected. Function. Here, the rotation areas of the first rotation arm 24 and the second rotation arm 25 are adjusted by the shapes of the substantially circular guide grooves 24 c and 25 c provided in the first and second guide members 22 and 23. Or by adjusting the biasing force of the tension coil springs 38 and 41, for example, the first and second optical discs 10a, 10b, for example, by an amount that the user can easily remove from the disc insertion / extraction opening. , 10b can be pushed out to the extent that a part of the center hole is exposed to the outside.

  In the above example, the disk drive device 1 capable of loading the first optical disk 10a having a diameter of 12 cm and the optical disk 10b having a diameter of 8 cm has been described. However, in the present invention, the number of optical disks having different diameters that can be transported is two. It is not limited to. In addition to the optical disk, the disk serving as the recording medium may be a magneto-optical disk, a magnetic disk, or the like. When a magnetic disk is used as a recording medium, a magnetic head device is used instead of the optical pickup 12 as recording and / or reproducing means. When a magneto-optical disk is used as a recording medium, recording and / or reproducing means is used. The optical pickup 12 and the magnetic head device are provided. Also, the type of optical disk is not limited to CD or DVD.

It is a perspective view explaining the use condition of a disk drive apparatus. 1 is an exploded perspective view of a disk drive device. It is a top view of a disk drive device. It is a top view of a loading mechanism. It is a top view of the detection mechanism which detects insertion of an optical disk. It is a figure which shows the state of a detection mechanism when the large diameter 1st optical disk is inserted, (A) is the time of insertion of a 1st optical disk, (B) is in the middle of the insertion of a 1st optical disk, ( C) is a plan view showing a state at the end of insertion of the first optical disc. It is a figure which shows the state of a detection mechanism when a small diameter 1st optical disk is inserted, (A) is the time of insertion of a 2nd optical disk, (B) is in the middle of the insertion of a 2nd optical disk, (C ) Is a plan view showing the final insertion state of the second optical disk. It is a top view which shows the cancellation | release mechanism which cancels | releases the engagement state of the 1st and 2nd guide roller engaged with the optical disk inserted to the rotation position. It is a figure which shows the state of the cancellation | release mechanism when a large diameter 1st optical disk is inserted, (A) is a plane which shows the state which the 1st and 2nd guide roller engaged and hold | maintained the 1st optical disk. (B) is a plan view showing a state in which the first and second guide rollers have released the engaged state of the first optical disk. It is a figure which shows the state of the cancellation | release mechanism when a small diameter 2nd optical disk is inserted, (A) is a top view which shows the state which the 1st and 2nd guide roller engaged and hold | maintained the 2nd optical disk. (B) is a plan view showing a state in which the first and second guide rollers release the engaged state of the second optical disk. It is a top view which shows the initial state in which the 1st optical disk was inserted. It is a top view which shows the state in which insertion of the 1st optical disk was detected. It is a top view which shows the state by which the 1st optical disk was drawn in to the rotation position. It is a top view which shows the state in which the 1st optical disk became rotatable in the rotation position. It is a top view which shows the initial state in which the 2nd optical disk was inserted. It is a top view which shows the state in which insertion of the 2nd optical disk was detected. It is a top view which shows the state by which the 2nd optical disk was drawn in to the rotation position. It is a top view which shows the state in which the 2nd optical disk became rotatable in the rotation position. It is a top view which shows the state which ejected the 1st optical disk in the modification of the disk drive apparatus. FIG. 10 is a plan view showing a state in which a second optical disc is ejected by a modification of the disc drive apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disk drive apparatus, 2 Lower case, 3 Top plate, 4 Apparatus main body, 10a 1st optical disk, 10b 2nd optical disk, 11 Disk rotation drive mechanism, 12 Optical pick-up, 20 Loading mechanism, 21 Slider, 22 1st Guide member, 23 Second guide member, 24 First rotation arm, 25 Second rotation arm, 26 Base, 27 Drive mechanism, 28 Drive motor, 31 Release member, 31c Press part, 32 Drive member, 32b Stopper, 33 Coil spring, 35 Coupling member, 36 Coil spring, 37a, 37b First guide roller, 38 Tensile coil spring, 39a, 39b Second guide roller, 41 Tensile coil spring, 50 detection mechanism, 51 Rotating member, 52 Coil spring, 53 2nd pressed part, 54 groove part, 55 1st Pressing part, 56 detecting element, 57 pressing piece, 60 release mechanism, 61 cam plate, 62 coil spring, 63 cam piece, 63a first inclined cam part, 64 cam groove, 64a second inclined cam part, 65 rotating lever , 66 Pressing protrusion, 67 Pressed protrusion.

Claims (7)

A slider that can be moved in the disc transport direction;
A pair of guide members provided on the slider and approaching and separating from each other in a direction orthogonal to the conveying direction of the disk;
A pair of rotating arms provided in each of the guide members, provided at least at each end with a guide roller that engages with the outer periphery of the disc, and having a proximal end rotatably attached to the guide member;
A link mechanism that is provided on the slider and moves in a direction in which the pair of guide members approach and separate from each other;
When the disk is inserted, the pair of guide members are moved away from each other by the link mechanism, and the rotation arm is rotated by the disk to be provided at each end of each rotation arm. Disc loading that engages at least a pair of guide rollers, and the slider slides in the insertion direction of the disc to move the disc to the rotational position of the disc while being engaged and held by the pair of guide rollers. apparatus. A drive mechanism for sliding the slider;
A detection mechanism for detecting insertion of the disk for detecting a rotation amount of the at least one rotation arm;
The detection mechanism includes a rotation member that is pressed and rotated by a protrusion provided on the at least one rotation arm or the disk, and a detection element that detects rotation of the rotation member.
2. The disk loading apparatus according to claim 1, wherein the drive mechanism slides the slider in the insertion direction of the disk when a detection signal is generated from the detection element. The apparatus is capable of inserting a first disk having a first diameter and a second disk having a smaller diameter than the first disk,
The rotating member is provided with a groove part into which the protrusion enters when the first disk is inserted, and a first pressed part to be pressed by the protrusion is provided in the groove part. When the second disc is inserted, a second pressed portion is provided that is pressed by the protrusion.
When the first disk is inserted, the rotating member rotates by pressing the first pressed portion by the protrusion to press the detection element, and the second disk The disk loading device according to claim 2, wherein when inserted, the second pressing portion is pressed by the protrusion to rotate and press the detection element.   2. The disk according to claim 1, wherein the pair of rotating arms are urged to rotate such that a guide roller on a distal end side which is an insertion side of the disk is separated from each other and a guide roller on a proximal end side is close to each other. Loading device.   At the time of ejecting, the pair of rotating arms presses the outer periphery of the disk, the disk is ejected to the outside of the apparatus, and the above-mentioned according to the rotating area of the pair of rotating arms and the rotating biasing force with respect to the rotating arms 2. The disk loading device according to claim 1, wherein the push-out amount of the disk is adjustable. And a release mechanism for releasing the engagement state between the guide roller and the disc at the rotational position of the disc.
2. The disk loading apparatus according to claim 1, wherein the release mechanism includes a release member that rotates guide rollers on the proximal end sides of the pair of rotating arms in a direction away from each other when the disk is conveyed to a rotation position. . A disk rotation drive mechanism for rotating the disk;
Recording and / or reproducing means for recording and / or reproducing information signals with respect to a rotatable disk mounted on the disk rotation driving mechanism;
A loading mechanism for transporting the disk across an insertion position and a rotation position by the disk rotation drive mechanism;
The loading mechanism is provided on each of the slider that is movable in the disc transport direction, a pair of guide members that are provided on the slider and that are close to and away from each other in a direction orthogonal to the disc transport direction, and the guide member. A guide roller that engages with the outer periphery of the disc at least at each end, a pair of rotating arms that are rotatably attached to the guide member on the base end side, and a pair of the rotating arms that are provided on the slider. A guide mechanism for moving the guide members in a direction to approach and separate from each other,
When the disk is inserted, the pair of guide members are moved away from each other by the link mechanism, and the rotation arm is rotated by the disk to be provided at each end of each rotation arm. An optical disc apparatus that is engaged with at least a pair of guide rollers, and the slider slides in the insertion direction of the disc so that the disc is moved to the rotational position of the disc while being engaged and held by the pair of guide rollers. .

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