JP3953484B2 - Disc player device - Google Patents

Description

  The present invention relates to a disc player device for reproducing and / or recording a disc such as a CD (Compact Disc) and a DVD (Digital Versatile Disc).

  In a disc player device that reproduces and / or records a disc such as a CD and a DVD, a slot-in device that is sandwiched between a transport roller that transports the disc and a disc guide roller and transports the disc by the rotational movement of the transport roller. There is a disc player apparatus having a disc transport mechanism of the type. This slot-in type disc player device is often used for car audio and the like.

  The slot-in type disc player apparatus includes a loading mechanism for ejecting and loading a disc and an optical pickup driving mechanism for driving the optical pickup.

  In this slot-in type disc player device, when the disc is pulled to a predetermined position in the disc player device, the drive mechanism for driving the carry roller is released, and the pressure bonding between the carry roller and the disc guide roller is released. The

  After the press release, the performance unit is unlocked, thereby detecting the end of the loading operation. In this way, the loading operation is completed and the performance of the disc is started.

  In the slot-in type player device described above, measures are taken so as not to cause scratches on the surface of the disc.

As a measure to prevent scratches on the disc, a method has been proposed in which the drive transmission is switched to stop the roller so that slippage does not occur between the disc and the roller, thereby preventing the roller from slipping immediately. (For example, refer to Patent Document 1).
JP 2003-141800 A

  By the way, in the conventional slot-in type player device described above, in order to give a torque due to a predetermined friction between the roller and the roller shaft, an urging spring such as a coil spring is attached to the end portion of the roller shaft so that the roller is a disc. Energized in the direction.

  Conventionally, the mounting operation of the urging spring is troublesome, and there is a problem that a predetermined torque cannot be obtained depending on the mounting mode.

  The present invention has been made in order to solve the above-described conventional problems, makes it easy to assemble, and can provide torque due to predetermined friction between the roller and the roller shaft. An object is to provide an apparatus.

  The present invention provides a disc player apparatus in which a disc is sandwiched between a carrying roller and a disc guide roller, and the disc is transported and carried out by the rotational movement of the carrying roller. First support means for supporting the disk guide roller, second support means for swingably supporting the disk guide roller with respect to the main body, and the first support means, and a transport roller for transporting and unloading the disk. Is moved to the disk side, abutting against the second support means and a guide member for moving the conveying roller to a position for retracting the disk when recording or reproducing the disk, and moving the disk guide roller to the disk side when the disk is conveyed and unloaded. And a guide member for moving the disc guide roller to a position for retracting when recording or reproducing the disc, and the main body portion And attached upper case attached to the upper case, characterized by comprising a leaf spring providing a biasing force to the disc guide roller.

  Further, it is preferable that the urging force of the leaf spring is applied to the disc guide roller via the second support means.

  The leaf spring may be provided with a spring piece that contacts the disc guide roller at the retracted position of the disc guide roller.

  As described above, the present invention can easily apply a predetermined pressing force to the disk guide roller (upper roller) by fixing a plate spring having a predetermined shape to the upper case in advance and attaching the upper case to the main body. it can. Furthermore, since a pressing force is applied to the disk guide roller via the support member by the leaf spring, the pressing force is applied uniformly to the disk guide roller rather than directly biasing the disk guide roller by a coil spring or the like, and the disk width is uniform in the horizontal direction of the disk. Force is applied, skewing of the disk is suppressed, and transport can be performed smoothly.

  Further, by providing a leaf spring portion that comes into contact with the disk guide roller when the disk guide roller is retracted from the disk, vibration of the disk guide roller during recording / reproduction of the disk is suppressed.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In the following embodiments, unless otherwise specified, the front end side refers to the back side of the main body case 20 opposite to the disk insertion port 12, and the rear end side refers to the disk insertion port 12 side. Shall point to.

  FIG. 1 is an exploded perspective view showing a configuration of a disc player apparatus according to the present invention. The disc player device 10 reproduces a disc 11 (see FIGS. 7 and 8) such as a DVD (Digital Versatile Disc). However, in the disc player device 10, the disc 11 (recording medium) to be reproduced is not limited to a DVD, and may be another recording medium such as a CD (Compact Disc).

  As shown in FIG. 1, a disc player device includes a main body case 20 as a case body covering various components provided inside and an inserted disc 11, and an upper case 200a attached to the upper and lower portions of the main body case 20, respectively. The lower case 200b is provided. A floating chassis 21 as a chassis body is provided inside the main body case 20.

  The floating chassis 21 is elastically supported via a damper with respect to the main body case 20 so as to sink by a predetermined amount when the disk 11 is inserted into the main body case 20. Although not shown, the floating chassis 21 is mounted with a printed board on which an IC such as a microcomputer for controlling the apparatus and performing signal processing is mounted, and an optical pickup (300) is arranged in the radial direction of the disk. The disk is movably mounted to access the disk.

  FIG. 2 is a perspective view showing the main body case portion in a state waiting for the insertion of the disk, and a part of the main body case is omitted for easy understanding of the components. FIG. 3 is a plan view showing the main body case portion in a state waiting for insertion of a disc. 4 is a side view showing the first slider portion, FIG. 5 is a side view showing the second slider portion, and FIG. 6 is a plan view showing the floating chassis portion.

  As shown in these drawings, the floating chassis 21 is provided along the inner peripheral side of the chassis main body 20 a of the main body case 20. Between the side part of the floating chassis 21 parallel to the direction in which the disk 11 is inserted and the chassis main body 20a of the main body case 20, the first slider 50 and the second slider shown in FIGS. Two sliders 60 and the like are provided.

  As shown in FIGS. 2 and 3, a clamper arm 22 is rotatably supported on the floating chassis 21 via a rotation fulcrum 23. In order to lock the clamper arm 22 to the rotation fulcrum 23, the clamper arm 22 is provided with holes that engage with the shaft of the rotation fulcrum 23. Locked.

  A spring 22s is attached to the clamper arm 22 (see FIG. 6), and the clamper arm 22 is urged in the direction of the turntable 14 around the rotation fulcrum 23.

  Further, the clamper arm 22 is provided with a clamper 27 made of a magnetic material for pressing the disk 11 against the turntable 14. The clamper 27 is pressed against the turntable 14 to which the magnet is attached, and the disk 11 inserted between the clamper 27 and the turntable 11 is placed on the turntable 14 by the biasing force of the spring and the magnetic force of the magnet provided on the turntable 14. It will be in the state pressed and held by. When the turntable 14 is rotationally driven by a turntable motor (not shown) in this pressure contact state, the disk 11 and the clamper 27 that presses the disk 11 are rotationally driven, and recording / reproduction of the disk 11 is performed. It will be ready.

  Further, the clamper arm 22 is provided with a tongue piece 24. As will be described later, the cam 507 provided on the first slider 50 and the tongue piece 24 come into contact with each other when the disk 11 is inserted and ejected. 27 is separated from the turntable 14 against the urging force of the spring 22s.

  Further, the clamper arm 22 is mounted with a fan-shaped operating piece 220 that comes into contact with the disk when the disk is inserted so as to be swingable. A pin 221 that comes into contact with a protrusion 502a of a rack gear member 502 of the first slider 50, which will be described later, is provided at the tip of the operating piece 220 when a disk is inserted. Although not shown, a protrusion is provided on the surface of the operating piece 220 facing the floating chassis 21a so that the clamper 27 is separated from the disk until the disk reaches the reproduction position of the floating chassis 21a. The operating piece 220 is pushed by a part of the disc until the disc reaches the reproduction position, and the operating piece 220 swings so as to be retracted from the disc. When the disk reaches a predetermined position, a hole (not shown) into which the protrusion is inserted is provided at a predetermined position of the floating chassis 21a in order to release the separation of the clamper 27.

  At the time of ejection, the cam 507 of the first slider 50 pushes up the tongue piece 24 of the clamper arm 22 in order to separate the clamper 27 from the turntable 14. In order to eject the disk 11, as will be described later, the lower roller member (conveying roller) 70 rises in the upward direction in the drawing and comes into contact with the disk 11, and then the upper roller (guide roller) 80 moves in the downward direction in the drawing. The disk 11 is held between the lower roller member 70 and the upper roller 80. As described above, when the lower roller member 70 first contacts the disk 11 and then the upper roller 80 contacts, the front end side of the disk 11 contacts the clamp arm 22, and an impact sound or the like is generated at the time of the contact. May occur. For this reason, in this embodiment, in order to alleviate the impact, a buffer member 230 having a tip portion constituted by a leaf spring is formed on the clamper arm 22. The tip of the buffer member 230 abuts on the surface of the disk 11 when the tip of the disk 11 swings upward in the figure during ejection, and suppresses the contact of the disk 11 with the clamp arm 22. Due to the buffer member 230, the impact of the disk 11 during ejection is alleviated, and there is no possibility of an impact sound being generated.

  A first slider 50 and a second slider 60 are supported on the floating chassis 21 by the chassis body 20 a so as to be slidable relative to the floating chassis 21.

  As shown in FIGS. 2, 3, and 4, the first slider 50 is attached to one side of the chassis main body 20a in parallel to the disk insertion / removal direction of the floating chassis 21. The first slider 50 includes a slider main body 501 and a rack gear member 502 slidably attached to the slider main body 501.

  4A shows the state of the first slider 50 in a state waiting for the insertion of the disc, and FIG. 4B shows the state of the first slider 50 in the recording / reproducing state of the disc. Is shown.

  As shown in FIG. 4, the slider main body 501 is provided with engaging grooves 50c and 50d for supporting the floating chassis 21a, and engaging convex portions 21c and 21d provided on the floating chassis 21a (see FIG. 6). And the engaging grooves 50c and 50d are engaged when the disk is inserted and removed, and one end of the floating chassis 21a is supported by the slider body 501.

  Further, at the time of recording / reproducing of the disc, as shown in FIG. 4B, the slider body 501 moves to the disc insertion slot 12 side and engages with the engaging convex portions 21c and 21d provided on the floating chassis 21a. The engagement of the joint grooves 50c and 50d is released, and the floating chassis 21 is supported by a damper described later.

  A guide groove 504 that engages with one end of a lower roller member (conveying roller) 70 described later is provided on the disk insertion opening 12 side of the slider main body 501 of the first slider 50. As shown in FIG. 4, the horizontal portion 504a, 504b having a step and a skew portion 504c connecting the both horizontal portions 504a, 504b. As shown in FIG. 5A, when one end of the lower roller member 70 is positioned at the horizontal portion 504a, the lower roller member 70 is in a position where it abuts on the disk. When the disk is inserted and the first slider 50 slides toward the disk insertion port 12 with respect to the chassis main body 20a as shown in FIG. 5B, one end of the lower roller member 70 is inclined. It will be in the position of the horizontal part 504b through 504c. Due to the movement of the lower roller member 70 along the guide groove 504, the lower roller member 70 moves downward in the figure and is moved downward in the figure to a position away from the disk and retracted.

  A biasing spring 508 is attached between the slider main body 501 of the first slider 50 and the chassis main body 20a. The biasing spring 508 causes the first slider 50 to be opposite to the disk insertion port 12, that is, In the figure, it is biased in the direction of arrow A. An urging spring 506 is attached between the slider body 501 and the rack gear member 502, and the urging spring 506 also urges the rack gear member 502 in the direction of arrow A in the figure.

  As described above, when the disk is inserted, the operating piece 220 swings, and the protrusion 502a of the rack gear member 502 and the pin 221 of the operating piece 220 come into contact with each other, so that the rack gear 503a moves against the biasing spring 506. It meshes with a gear 503 attached to the main body 20a. As will be described later, the gear 503 is rotationally driven by a driving force transmission means for inserting a disk and a driven means, and the first slider 50 moves to the disk insertion slot 12 side by the gear 503 and the rack gear 503a. The rack gear member 502 is engaged with the rack gear 503a and the gear 503, and the rack gear 502a is moved by the driving of the gear 503, whereby a part of the rack gear member 502 comes into contact with the slider body 501 and pushes the slider body 501 to attach the slider body 501. The disk is moved toward the disk insertion slot 12 against the spring 508. When the slider main body 501 is in the recording / reproducing position, the slider main body 501 is locked at the recording / reproducing position by an eject pin interlocked with an eject button (not shown). When the eject button is pressed, the lock of the eject pin is released, and the first slider 50 returns from the state of FIG. 4B to the state of FIG. 4A by the biasing force of the biasing spring 508.

  On the other hand, as shown in FIGS. 2, 3, and 5, the second slider 60 is attached to the other side of the chassis body 20a in parallel with the disk insertion / removal direction of the floating chassis 21. The second slider 60 is provided with engagement grooves 60c and 60d for supporting the floating chassis 21a. The engagement protrusions 21e and 21f and the engagement grooves 60e and 60f provided on the floating chassis 21a are formed on the disk. It engages at the time of insertion and removal, and the other end side of the floating chassis 21 a is supported by the second slider 60.

  Further, at the time of recording / reproducing the disc, as shown in FIG. 5B, the second slider 60 moves to the disc insertion slot 12 side, and the engaging convex portions 21e, 21f provided on the floating chassis 21a. And the engagement grooves 60e, 60f are disengaged, and the floating chassis 21 is supported by a damper described later.

  Thus, the floating chassis 21 a is supported by the first slider 50 on one end side and the second slider 60 on the other end side.

  Further, a guide groove 604 that engages with a pin 701 provided at the tip of the lower roller plate 700 that supports the lower roller member 70 is provided on the disk insertion slot 12 side of the second slider 60. A guide groove 604 is formed so that the second slider 60 slides in the same manner as the first slider 50 according to the swing of the lower roller plate 700.

  The lower roller plate 700 is swingably attached to the chassis body 20a, and the lower roller member 70 is rotatably attached to the floating chassis 21a side. As shown in FIG. 5, on the second slider 60 side, a pin 701 of the lower roller plate 700 is engaged with a hole provided in the chassis main body 20a. On the first slider 50 side, a pin of a member that supports the lower roller plate 700 is engaged with a support plate (not shown) attached to the chassis body 20a.

  Further, cam portions 505 and 605 for moving up and down an upper roller (disc guide roller) 80 described later are provided at the front end portions of the first slider 50 and the second slider 60 on the disc insertion port 12 side. ing. When the cam follower portion of the support member 810 of the upper roller 81 is positioned below the cam portions 505 and 605, that is, when the disc is inserted, the upper roller 80 contacts the disc. Further, at the time of disk reproduction, the first slider 50 and the second slider 60 slide to the disk insertion slot 12 side, and the cam follower portion of the support member 810 of the upper roller 80 is positioned on the upper portion 505a of the cam portions 505 and 605. The upper roller 80 is separated from the disk. The upper roller 80 is moved upward in the drawing and separated from the disk 11 by the contact between the cam follower portion of the support member 810 of the upper roller 80 and the cam portions 505 and 605. The cam groove 504 and the cam portions 505 and 605 provided in the vicinity of the front end portion of the first slider 50 and the second slider 60 on the disc insertion port 12 side are arranged so that the disc 11 is in a predetermined position when the disc 11 is inserted. After the first roller 50 and the second slider 60 move in the direction toward the disk insertion opening 12, first, the lower roller member 70 starts moving, and after the lower roller member 70 is separated from the disk 11. The cam shape is formed so that the upper roller 80 starts to move. Further, in the cam groove 504, the cam follower portion of the support member 810 of the upper roller 80 is positioned in the upper portion 505a, and even after the movement of the upper roller 80 is stopped, the lower roller member 70 is slightly behind the oblique portion 504c. It is formed so as to move downward and reach the horizontal portion 504b.

  When the disk 11 is ejected, the lock is released, and the urging force of the urging spring 508 from the state shown in FIGS. 4 (b) and 5 (b) is used as shown in FIGS. 4 (a) and 5 (b). The lower roller member 70 and the upper roller 80 sandwich the disk 11, but the lower roller member (conveying roller) 70 is directed upward in the figure due to the shape of the cam groove 504 and the cam portions 505 and 605 described above. Then, the upper roller (guide roller) 80 descends downward in the figure and comes into contact with the disk 11, and the lower roller member 70 and the upper roller 80 cause the disk 11 to move. Pinch.

  As described above, the lower roller member 70 and the upper roller 80 provided in the disk insertion slot 12 are configured such that both come into contact with the disk when the disk is loaded and unloaded, and both are separated from the disk 11 during reproduction. Yes.

  7 is a plan view showing the upper and lower roller portions in a state where the disc is inserted into the disc insertion slot and the disc is being conveyed, FIG. 8 is a side view thereof, and FIG. 9 is an upper roller portion of the disc insertion slot. It is a top view.

  As shown in FIGS. 2, 4, 5, and 7, the upper and lower rollers 70 and 80 provided in the disk insertion slot 12 are swingably attached to the chassis body 20a by support members, respectively. That is, the upper roller 80 is made of, for example, SUS301, and is rotatably supported at the tip of the roller support member 810 on the floating chassis 21a side as shown in the drawing. The roller support member 810 is made of, for example, a PPS member in which 60% of a glass inorganic filler is mixed in order to ensure strength, and a pin 811 is provided on the disk insertion port 12 side on the second slider 60 side. This pin 811 is engaged with a hole provided in the chassis main body 20a. A support wall 20e is provided on the first slider 50 side at a predetermined distance from the chassis body 20a, and a pin 812 provided on the roller support member 810 is engaged with a hole provided on the support wall 20e. Is done. By engaging both pins 811 and 812 with the corresponding holes, the roller support member 810 is swingably attached to the chassis body 20a.

  In the vicinity of supporting the upper roller 80 of the roller support member 810, a cam follower portion 813 is formed to extend on the first slider 50 side, and a cam follower portion 814 is formed to extend on the second slider 60 side. . The cam follower portions 813 and 814 come into contact with the cam portions 505 and 605, respectively, and the roller support member 810 swings according to the sliding movement of the first and second sliders 50 and 60, and the upper roller 80 is moved to the disk. 11 is contacted with or separated from the disk 11.

  As shown in FIGS. 7 and 9, the roller support member 810 is in contact with a plate spring 210 made of, for example, SUS301 attached to the upper case 200a. The plate spring 210 attaches the upper roller 80 in the disk direction. Be forced. The plate spring 210 is fixed to the upper case 200a so that both end portions 211 of the plate spring 210 abut against both ends of the roller support member 810 when the upper case 200a is attached to the chassis body 20a. In this manner, by fixing the plate spring having a predetermined shape to the upper case 200a in advance, the upper case 200a is attached to the chassis body 20a, so that a predetermined pressing force can be easily applied to the upper roller 80. Further, since both ends of the roller support member 810 are suppressed by the plate spring 210 and a pressing force is applied to the upper roller 80 via the roller support member 810, the upper roller 80 is evenly distributed over the upper roller 80 rather than directly biased by a coil spring or the like. A pressing force is applied, a uniform force is applied in the transverse direction of the disk, skewing of the disk is suppressed, and the conveyance can be performed smoothly.

  Further, as shown in FIG. 9, the plate spring 210 is provided with a plate spring portion 212 that comes into contact with the upper roller 80 when the upper roller 80 is separated from the disk, and the upper roller 80 vibrates during disk reproduction. It is restrained to do.

  As shown in FIG. 8, the lower roller member 70 has a roller shaft 70a made of SUS301 attached with a rubber roller 70b made of silicon rubber, and abuts the recording surface of the disk without scratching. When the disk is transported, a predetermined pressing force is applied to the disk by the plate spring 210 that holds the disk between the upper roller 80 and the lower roller member 70 and presses the upper roller 80. The lower roller member 70 is rotatably supported by a lower roller plate 700 made of sheet metal, and a gear for rotating the lower roller member 70 by transmitting a rotational force from the drive motor 300 to one end of the roller shaft 70a. 30c is attached.

  As described above, the plate support member 700a having the pin 701 that engages with the guide groove 604 of the second slider 60 is attached to the lower roller plate 700 on the second slider 60 side. The plate support member 700a is provided with a pin (not shown) that engages with a hole (not shown) provided in the chassis body 20a. Further, a pin (not shown) provided on the lower roller plate 700 is inserted into a hole (not shown) provided on the support wall provided on the first slider 50 side in 20e. In this manner, the lower roller plate 700 is swingably attached between the chassis main body 20a and the support wall 20e.

  As described above, the lower roller plate 700 moves away from the disk or abuts against the disk in accordance with the sliding movement of the first slider unit 50. In accordance with the movement of the lower roller plate 700, the second slider 60 also moves.

  As shown in the drawing, the lower roller plate 700 is provided with a switch piece 711 for stopping the drive motor 300, as will be described later, and the lower roller member 70 along the guide groove 504 of the first slider 50 is provided. When the lower roller member 70 is moved from the position of contact with the disk to the retracted position by the movement, the switch piece 711 is configured to contact the switch attached to the printed circuit board, and the switch piece 711 switches the switch. By pushing, the drive motor is stopped and the movement of the first slider unit 50 is stopped.

  As shown in the figure, a drive gear (not shown) of the drive motor 300 is engaged with a gear 30 a, and the gear 30 a is configured to engage with a gear 30 b of the gear shaft 30. The gear shaft 30 is rotated by driving the drive motor 300. The gear shaft 30 is provided with a gear 30d that meshes with the gear 30c attached to the roller shaft 70a and a gear 30e that meshes with the gear 503. Then, the driving force from the driving motor 300 is transmitted through the gear shaft 30 and each gear, and the lower roller member 70 is rotationally driven and the first slider 50 is moved.

  As described above, the floating chassis 21 is elastically supported with respect to the main body case 20 via the damper so as to sink a predetermined amount when the disk 11 is inserted into the main body case 20. In this embodiment, as shown in the figure, the floating chassis 21 is supported by three dampers 40.

  10 is a rear view of the disc player device of the present invention, FIG. 11 is a sectional view taken along line AA in FIG. 10, FIG. 12 is a sectional view taken along line BB in FIG. The damper used is shown, (a) is a plan view and (b) is a rear view.

  As shown in FIGS. 10 to 12, the floating chassis 21 is provided with support pins 21 h that are inserted into the support holes 46 of the damper 40. The damper 40 includes an outer frame 41 made of polypropylene and a damper portion 42 made of an elastomer, and the damper portion 42 is filled with silicon oil. Further, a compression spring 44 is inserted between the floating chassis 21 and the damper outer frame 41.

  As shown in FIG. 12, the damper outer frame 41 is provided with a main body portion 41a formed in a circular shape in plan view, a pin 44 for attaching the chassis main body 20a connected to the main body portion, and an insertion piece 45. ing. Holes 20h and 20i are provided at positions where the damper 40 of the chassis main body 20a is to be attached. Inserting the insertion piece 45 into the hole 20i and inserting the pin 44 into the hole 20h allows a predetermined position of the chassis main body 20a. The damper 40 is attached to the part.

  Further, on the side facing the lower case 200b of the damper outer frame 41, a step portion 41b for ensuring engagement with the lower case 200b is provided in the main body portion 41a. The lower case 200b is provided with an engaging portion 211 to which the outer frame 41 of the damper is engaged. The dimension between the opposite side sides 211a of the engaging portion 211 is between the step portions 41b of the damper outer frame 41. It is formed so that it can be attached with an interference fit to the dimensions. As a result, when the lower case 210 is attached to the chassis main body 20a, the fixing strength of the damper 40 is improved by the engagement of the engaging portion 211 and the step portion 41b of the main body portion 41a.

  In this embodiment, the roller support member 810 is provided with disc detection sensors 820 and 821. In this embodiment, a disk having an outer diameter of 12 cm is loaded, and a disk having an outer diameter of 8 cm is not loaded. For this reason, when the sensor 810 is turned on, loading is started. However, when the sensor 820 is turned on and the sensor 821 is not turned on within a predetermined time, the drive motor 300 is rotated reversely and the disk is ejected. Further, even when the ON time of the sensor 821 is shorter than the predetermined time, the drive motor 300 is reversely rotated to eject the disk. Of course, it can also be configured so that two disks having outer diameters of 12 cm and 8 cm can be loaded.

  The operation of this embodiment will be described below.

  When the disk 11 is inserted as shown in FIG. 7 from the state before the disk shown in FIG. 2 is inserted, the sensors 820 and 821 detect that the disk 11 has been inserted and the drive motor 300 is driven. By driving the drive motor 300, the gear shaft 30 rotates, the driving force from the drive motor 300 is transmitted through the gear shaft 30 and each gear, and the lower roller member 70 rotates. A predetermined pressing force is applied to the disk 11 sandwiched between the upper roller 80 and the lower roller member 70 by a plate spring 210 that presses the upper roller 80. Then, as the lower roller member 70 rotates, the disc 11 is conveyed toward the clamper 27 toward the front end of the disc player device. At this time, since the first slider 50 and the second slider 60 are maintained in the state of FIGS. 4A and 5A, the tongue piece 24 of the clamper arm 22 as shown in FIG. Contacts the cam 507 and separates the clamper 27 from the turntable 14 against the biasing force of the spring 22s.

  When the disk 11 is carried into the apparatus by the rotation of the lower roller member 70, the tip of the disk 11 comes into contact with the operating piece 220 provided on the clamper arm 22. As the disk 11 is inserted, the operating piece 220 that comes into contact with the disk 11 swings. The operating piece 220 is pushed by a part of the disk until the disk 11 reaches the playback position, and the operating piece 220 swings away from the disk. To do. When the disk 11 reaches a predetermined reproduction position, the protrusion 221 at the tip of the operating piece 220 comes into contact with the protrusion 502a of the rack gear member 502 of the first slider 50, and moves the rack gear member 502 toward the disk insertion slot 12. The rack gear 503a and the gear 503 are engaged with each other, and the first slider 50 is moved by the driving force of the driving motor 300.

  14 shows a state in which the movement operation of the first slider 50 is started, FIG. 15 shows a state in which the first slider has slightly moved, and FIG. 16 shows a state in which the clamper arm 22 has moved to the disk side and the disk has been clamped. FIG. In these figures, the disk is omitted.

  When the rack gear 503a and the gear 503 mesh with each other, the driving force of the drive motor 300 is transmitted to the gear 503 through the gear shaft 30, the rack gear 503a moves, and the first slider 50 moves to the disk insertion slot 12 side. Go. When the first slider 50 is moved and the tongue 24 of the clamper arm 22 is detached from the cam portion 507, the clamper arm 22 is moved to the disk 11 side by the biasing force of the spring 22s, and the clamper 27 is attached with a magnet. The disc 11 inserted between the clamper 27 and the turntable 11 is pressed and held on the turntable 14 by the pressing force of the turntable 14 and the urging force of the spring and the magnetic force of the magnet provided on the turntable 14.

  Further, as the first slider 50 moves, the lower roller plate 700 is lowered along the guide groove 504 to separate the lower roller member 70 from the disk 11. When the disk 11 is held by the clamper 27, the lower roller member 70 is separated from the disk 11. Further, although the first slider 50 continues to be moved by the drive motor 300, the lower roller member 70 is separated from the disk 11, so that the disk 11 is not slipped and the occurrence of scratches is prevented. . Further, when the lower roller member 70 is separated from the disk 11, the meshing of the gear 30c of the lower roller member 70 and the gear 30d of the gear shaft 30 is released. As a result, the rotation of the lower roller member 70 stops. The cam follower portion of the support member 810 of the upper roller 80 is positioned above the upper portion 505 a of the cam portions 505 and 605, and the upper roller 80 is separated from the disk 11.

  Further, as shown in FIGS. 17 and 18, when the drive motor 300 is driven, the first slider 50 moves and slides toward the disk insertion slot 12, so that one end of the lower roller member 70 is inclined to the inclined portion 504 c. After that, the position of the horizontal portion 504b is reached. By the movement of the lower roller member 70 along the guide groove 504, the lower roller member 70 moves to a position where it is separated from the disk and retracted, and the lower roller plate 700 is lowered downward. As the lower roller plate 700 moves, the second slider 60 side also moves to the disk insertion side 12 along the guide groove 604.

  When the first and second sliders 50 and 60 move to the recording / reproducing positions shown in FIGS. 19 and 20, the engaging projections 21c, 21d, 21e, and 21f provided on the floating chassis 21a are The engagement grooves 50c and 50d of the slider 50 and the engagement grooves 60e and 60f of the second slider 60 are disengaged, and the engagement protrusions 21c and 21d provided on the floating chassis 21a and the engagement grooves 50c, The engagement of 50 d is released, and the floating chassis 21 is supported by the damper 40. Further, cam follower portions 813 and 814 provided on the roller support member 810 abut against the cam portions 505 and 605, respectively, so that the roller support member 810 moves upward and the upper roller 80 is separated from the disk 11.

  When the lower roller member 70 is moved from a position where it contacts the disk to a position where it is retracted, the switch piece 711 comes into contact with a switch attached to the printed circuit board, and the switch piece 711 presses the switch, thereby driving the motor 300. Stops, the movement of the first slider unit 50 is stopped, and the recording / reproducing state is entered. As described above, when the slider main body 501 is in the recording / reproducing position, the slider main body 501 is locked at the recording / reproducing position by an eject pin interlocked with an eject button (not shown).

  On the other hand, when the eject button is pressed to eject the disk 11, the eject pin is unlocked, and the first slider 50 is moved by the biasing force of the biasing spring 508 as shown in FIGS. The state of b) returns to the state of FIG. 4A and FIG. 5A, and the shape of the cam groove 504 and the cam portions 505 and 605 described above as the first and second sliders 50 and 60 move. As a result, the lower roller member (conveying roller) 70 rises upward in the figure and comes into contact with the disk 11, and then the upper roller (guide roller) 80 falls in the downward direction in the figure and comes into contact with the disk 11. Then, the disk 11 is sandwiched and the state shown in FIG. 2 is restored.

It is a disassembled perspective view which shows the structure of the disc player apparatus of this invention. FIG. 5 is a perspective view showing a main body case portion in a state waiting for insertion of a disc in the disc player device of the present invention. FIG. 6 is a plan view showing a main body case portion in a state waiting for insertion of a disc in the disc player device of the present invention. FIG. 3 is a side view showing a first slider portion in the disc player device of the present invention. FIG. 6 is a side view showing a second slider portion in the disc player device of the present invention. FIG. 3 is a plan view showing a floating chassis portion in the disc player device of the present invention. FIG. 6 is a plan view showing the upper and lower roller portions in a state where the disc is inserted into the disc insertion slot and the disc is conveyed in the disc player device of the present invention. FIG. 6 is a side view showing the upper and lower roller portions in a state where the disc is inserted into the disc insertion slot and the disc is conveyed in the disc player device of the present invention. It is a top view which shows the upper roller part of the disc insertion port in the disc player apparatus of this invention. It is a rear view of the disc player apparatus of this invention. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. The damper used for the disc player apparatus of this invention is shown, (a) is a top view, (b) is a rear view. FIG. 6 is a perspective view showing a state in which the moving operation of the first slider is started in the disc player device of the present invention. FIG. 6 is a perspective view showing a state in which the first slider has moved slightly in the disc player device of the present invention. FIG. 6 is a perspective view showing a state where the clamper arm is moved to the disc side and the disc is clamped in the disc player apparatus of the present invention. FIG. 5 is a perspective view showing a state in which the first slider is further moved after the clamper arm is moved to the disk side in the disk player device of the present invention. FIG. 5 is a perspective view showing a state in which the first slider is further moved after the clamper arm is moved to the disk side in the disk player device of the present invention. FIG. 3 is a perspective view showing a recording / reproducing position state in the disc player device of the present invention. FIG. 3 is a perspective view showing a recording / reproducing position state in the disc player device of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Disc 12 Disc insertion slot 14 Turntable 20 Main body case 20a Chassis main body 21 Floating chassis 22 Clamper arm 27 Clamper 40 Damper 50 First slider 60 Second slider 70 Lower roller member (conveyance roller)
80 Upper roller (disc guide roller)
200a upper case 200b lower case 210 leaf spring 230 cushioning member

Claims (3)

In a disc player apparatus that sandwiches a disc between a transport roller and a disc guide roller and transports and unloads the disc by the rotational movement of the transport roller, the transport roller is supported in a swingable manner with respect to the main body. 1 support means, a second support means for swingably supporting the disk guide roller with respect to the main body, and the first support means, and when the disk is transported and unloaded, the transport roller is moved to the disk side. The guide member is moved to a position where the conveying roller is retracted during recording or reproduction of the disk, and the second support means, and the disk guide roller is moved to the disk side when the disk is conveyed and unloaded. A guide member that moves the disk guide roller to a position to retract during recording or reproduction, and attached to the main body An upper case which is attached to the upper case, a disc player apparatus characterized by comprising a leaf spring providing a biasing force to the disc guide roller. 2. The disc player device according to claim 1, wherein an urging force of the leaf spring is applied to the disc guide roller through the second support means. 3. The disc player device according to claim 1, wherein a spring piece that contacts the disc guide roller at a retracted position of the disc guide roller is provided on the plate spring.

Images