JP4232736B2 - Slot-in type disk unit - Google Patents

Description

  The present invention can handle a slot-in type disk device, particularly two types of disks of different sizes, and the optical pickup of the disk drive means and the disk transport means for loading the disk drive a single motor. The present invention relates to a slot-in type disk device adapted to operate as a source.

  The disk device that optically processes the disk with an optical pickup has a type in which the disk is loaded on a disk tray (called a tray type) and a type in which the disk is loaded by giving a direct feed force to the disk (slot type). In any type of disk device, it is required to securely hold the loaded disk on the turntable in the middle from the disk loading to the optical processing by the optical pickup. The optical processing by the optical pickup is performed while rotating the disk together with the turntable. In other words, the operation of the disk drive means for performing such disk mounting and optical pickup operations is common to the tray type and the slot-in type. Focusing on this point, in order to improve the mass productivity of the slot-in type disk device, both the tray type disk device and the slot-in type disk device share the same disk drive means, and the disk drive means It can be said that it is effective to configure a disk device by combining disk conveying means suitable for the tray type or the slot-in type.

  On the other hand, various types of slot-in type disk devices that handle two types of disks of different sizes have been proposed (see, for example, Patent Documents 1 to 5). Among them, Japanese Patent Application Laid-Open No. H10-228667 mechanically discriminates two types of large and small disks by combining various arms, stoppers, cam means and the like when the disk is sucked by the transport roller. Are listed. Similarly, Patent Documents 2 to 5 describe what mechanically discriminates two types of disks, large and small.

Conventionally, in the disk device, a technique (Patent Document 6) has been proposed to improve the accuracy of the process from disk loading to clamping, and the disk loading and the optical pickup feeding operation are performed with a single motor. Techniques to be performed (Patent Documents 7 to 9) have also been proposed.
Japanese Unexamined Patent Publication No. 6-44660 JP 2002-175658 A JP 2002-150650 A JP 2000-113546 A JP 2003-257108 A JP 2004-152345 A JP 2002-288911 A JP 2003-59153 A JP 2004-19862 A

  The present invention has been made in view of the above situation. That is, in the slot-in type disk device, not only can the disk drive means of the tray type disk device be easily used, but also it is possible to carry in the disk and feed the optical pickup with a single motor. A slot-in type disk device that is easy to adapt to mass productivity by taking measures to link the disk loading operation and the optical pickup operation at appropriate timings. The purpose is to provide.

  In addition, the present invention can mechanically accurately discriminate two types of discs of different sizes, and the disc can be mounted on the turntable and the optical pickup at an appropriate timing according to the size of the loaded disc. An object of the present invention is to provide a slot-in type disk device capable of performing the above operations.

  Furthermore, the present invention consolidates the mechanisms for determining the mechanical discriminating operation of two types of discs of different sizes, the operation timing of the disc drive means, etc. into a single slide member, so that their operation stability is improved. Another object of the present invention is to provide a slot-in type disk device capable of improving operational reliability.

  A further object of the present invention is to provide a slot-in type disk device that has a simple configuration and can reduce the number of necessary parts even though the above objects can be achieved.

  A slot-in type disk apparatus according to the present invention includes a turntable, an optical pickup that travels in a direction along the radial direction of the disk mounted on the turntable and performs optical processing on the disk, and the optical pickup. A first pinion rack mechanism for running, a lock mechanism that holds the optical pickup in an initial position by separating the first rack of the first pinion rack mechanism from the first pinion, and a lock state by the lock mechanism The disk drive means comprising a lock release mechanism for releasing the disk and a gear train including the first pinion and connected to the motor is applied with a feeding force to a disk selected from two types of disks of different sizes. A disk transporting means for carrying the disk into the turntable is combined.

The gear train forms a first transmission path for transmitting the power of the motor to the first pinion and a second transmission path for transmitting the power to the disk transporting means, and is carried in by the disk transporting means. A disk stopper that is engaged with the disk and pushed by the disk in a receding direction along the straight path, and the disk stopper is moved back to a position away from the disk in accordance with the timing when the loading of the disk by the disk conveying means is completed. A disk stopper push-off mechanism, a disk transfer stop mechanism that moves the disk transfer means from the operating position to the non-operating position in conjunction with the disk stopper push-off mechanism, a retreat operation of the disk transfer stop mechanism, and the lock release mechanism The disk is held on the turntable in conjunction with the operation of It comprises a disc clamp mechanism.

  In the present invention, the disc selected from the two types of discs of different sizes is fed to the turntable with the feeding force applied by the disc transport means, so that the two types of discs of different sizes can be used properly. In addition, since the feeding force is applied to the disk by the disk conveying means, the disk conveying means is suitable for the slot-in type disk device.

  Further, the disk drive means includes a turntable, an optical pickup, a first pinion rack mechanism for running the optical pickup, and a first rack of the first pinion rack mechanism spaced from the first pinion. Such a disk, comprising: a lock mechanism for holding the optical pickup in an initial position; a lock release mechanism for releasing the lock state by the lock mechanism; and a gear train including the first pinion and connected to a motor. Since a configuration in which a disk clamping mechanism is added to the driving means is adopted, the configuration of the disk driving means is made common with that of the tray type disk device. Therefore, the disk drive means of the tray type disk device can be used as the disk drive means, and the mass productivity of the slot-in type disk device can be easily achieved.

  Further, by forming a first transmission path and a second transmission path in the gear train, the first pinion for operating the optical pickup with the power of one motor and the disk transport for applying a feeding force to the disk Therefore, there is an advantage that only one motor is required even though the disk drive means of the tray type disk device can be diverted.

  In addition, the operation timing of each mechanism such as the disk stopper, disk stopper push-off mechanism, disk transport stop mechanism, disk clamp mechanism, etc. is appropriately determined, so that the operation from the disk loading to the optical processing of the disk by the optical pickup is performed. Is done smoothly.

In addition, in the present invention, the disk stopper pressing mechanism includes a slider integrally including a second rack that meshes with a second pinion interposed in the gear train, and a pressing cam mechanism formed on the slider. And a single control arm for converting the slide operation of the slider into the retreat operation of the disk stopper through the action of the push cam mechanism . If this configuration, can be the straw cutter cam mechanism and the disc stopper of the disc stopper straw cutter mechanism is simply constituted by the number of components small an association has been disk stopper straw cutter mechanism by a single control arm Become.

In addition, according to the present invention, the push cam mechanism slides the slider in accordance with the timing at which the loading of the disk by the disk conveying means is completed, thereby moving the second rack away from the second pinion. Slider starting means for moving to a meshing position with respect to the second pinion . According to is this, the slider starting means for being configured by a portion of the straw cutter cam mechanism, correspondingly configuration becomes simpler it unnecessary to separately constitute the slider starting means.

In addition, according to the present invention, the slider starting means is divided into a first starting means corresponding to the large size disk and a second starting means corresponding to the small size disk, and when the large size disk is loaded. And a selection mechanism that operates only the first starting means and operates only the second starting means when a small-size disc is loaded . According to is this, be mechanically determine the size of the loaded disk is possible by the selection mechanism.

In addition, according to the present invention, the first starting means forms the push cam mechanism by cooperating with the engaging portion provided on the cam surface of the push cam mechanism and the cam surface. A cam follower that engages with the engaging portion and pushes the engaging portion when the disc stopper is pushed from near the pushing limit position to the pushing limit position by a size disc, and the slider When the second starter is pushed from the vicinity of the pushing limit position to the limit position by the protrusion provided on the slider facing the cam follower located at the initial position of the cam surface and the small size disk. And the cam follower that slides the slider by pushing the projection. A position between the cam follower and the projection that is interposed between the cam follower and the projection positioned at the initial position of the cam surface when the disc is not loaded, and that responds only when a large-sized disc is loaded. A spring plate retracting outside is provided, and the operation of pushing the projection by the cam follower of the second starting means is performed via the spring plate which is pushed and bent by the cam follower . In this case, the spring plate is pushed to its large size disk when large size disk is carried to swings the spring plate in a direction to retract to the position between the cross and the small size disk It is desirable to be provided at the tip of the select lever that is positioned at the initial position when it is loaded and keeps the spring plate at the mutual position. When this configuration is adopted, the first starter and the second starter operate accurately according to the size of the loaded disc, although the configuration is simple.

  The present invention is further embodied by adopting the following configuration. That is, a turntable, an optical pickup that travels in a direction along a radial direction of a disk mounted on the turntable and performs optical processing on the disk, and a first pinion rack for running the optical pickup A mechanism for separating the first rack of the first pinion / rack mechanism from the first pinion to hold the optical pickup in an initial position; a lock releasing mechanism for releasing a lock state by the lock mechanism; A disk driving means including a first pinion and a gear train coupled to a motor is applied with a feeding force to a disk selected from two types of disks of different sizes, and the disk is carried into the turntable. Disk drive means for combining the motor and the gear train to boost the power of the motor. A first transmission path for transmitting to the first pinion and a second transmission path for transmitting to the disk conveying means are formed, and the disk carried by the disk conveying means is engaged and the disk follows the straight path. A disk stopper pushed in the backward direction, a disk stopper push-off mechanism that moves the disk stopper back to a position away from the disk in accordance with a timing when the loading of the disk by the disk transport means is completed, and the disk stopper push-off mechanism In conjunction with the disk transport stop mechanism for retracting the disk transport means from the operating position to the non-operating position, and the disk is held on the turntable in conjunction with the retracting operation of the disk transport stop mechanism and the operation of the unlocking mechanism. A disc clamping mechanism for A slider having a second rack integrally engaged with a second pinion interposed in the gear train, a push cam mechanism formed on the slider, and an action of the push cam mechanism And a single control arm for converting the slider sliding operation into the disk stopper retracting operation, and the push-off cam mechanism slides the slider in accordance with the timing when the disk transport by the disk transport means is completed. By moving the second rack, the slider starting means is moved from the separated position with respect to the second pinion to the meshing position with respect to the second pinion, and the slider starting means is provided on the cam surface of the push-off cam mechanism. The engagement portion and the cam surface work together to form the push-off cam mechanism and When the disk stopper is pushed from near the pushing limit position to the pushing limit position, it is configured by a cam follower that engages with the engaging portion and slides the slider by pushing the engaging portion. The disk stopper is pushed from near the pushing limit position to the limit position by a corresponding first starting means, a protrusion provided on the slider facing the cam follower located at the initial position of the cam surface, and a small size disk. The cam follower that slides the slider by pushing the protrusion when the projection is divided into second starting means corresponding to the small size disc, and the first start when the large size disc is loaded. 2nd start when a small size disc is loaded A select mechanism that operates only the stage, and the select mechanism is interposed between the cam follower and the projection located at the initial position of the cam surface when the disc is not loaded, and a large size disc is loaded And a spring plate that retreats outside the position between the cam follower and the projection, and the operation of pushing the projection by the cam follower of the second starter is pushed and deformed by the cam follower. The spring plate is moved through the spring plate, and the spring plate is pushed by the large size disc when the large size disc is carried in, so that the spring plate is retracted to the mutual position. When the small lever is loaded, the selector lever is positioned at the initial position to keep the spring plate in the mutual position. It is provided at the end, and each operation of the disc conveyance stop mechanism and the disc clamp mechanism is controlled by each cam mechanism provided on the slider together with the push-off cam mechanism. It is made more concrete by adopting the configuration. And according to this invention, each operation | movement of a disc conveyance stop mechanism and a disc clamp mechanism and operation | movement of a selection mechanism come to be controlled via operation | movement of one slider. Therefore, the mechanical discriminating operation for two types of discs of different sizes, the operation timing of the disc driving means, etc. are integrated into a single slide member, and their operation stability and operation reliability are improved. improves.

  As described above, according to the slot-in type disk apparatus according to the present invention, even when the disk drive means of the tray type disk apparatus is diverted, the disk loading and the optical pickup feeding operation can be performed by one motor. Therefore, it becomes easy to promote the mass production of the slot-in type disk device, and it becomes possible to provide such a slot-in type disk device at low cost. In addition, two types of discs of different sizes can be mechanically accurately discriminated, and the disc can be mounted on the turntable and the optical pickup can be operated at an appropriate timing according to the size of the loaded disc. Therefore, there is no need to perform electrical disk discrimination control, and from this point, it becomes possible to provide a slot-in type disk device at low cost. Furthermore, in the case where the mechanisms for mechanical discriminating operation of two types of discs of different sizes and the operation timing of the disc drive means are integrated into a single slide member, their operation stability and operation reliability. Thus, it is possible to provide a slot-in type disk device that is simple in configuration, has a small number of necessary parts, is easy to use for the user, and is excellent in operational stability and operational reliability.

  1 to 5 are explanatory diagrams showing the configuration and operation of the slot-in type disk device when a large size disk is used, and FIGS. 6 to 8 show the configuration and operation of the slot-in type disk device when using a small size disk. FIG. 9 is an explanatory diagram of the gear train, FIG. 10 is a plan view of the control arm, FIG. 11 is an explanatory diagram showing the configuration and operation of the push-off cam mechanism and the like, and FIG. 12 is a lock mechanism and an unlock mechanism. FIG. 13 is an enlarged view corresponding to the XIII arrow view of FIG.

  The disk drive means A will be described with reference to FIGS. The disk drive means A includes a turntable 11 directly connected to a motor (not shown), an optical pickup 12, a first pinion rack mechanism 13, a lock mechanism 16, a lock release mechanism 18, and a gear train 20. I have. The turntable 11 is disposed at a substantially central portion of the frame frame 10, and the optical pickup 12 is attached to the frame frame 10 so as to travel along a linear path in the perspective direction with respect to the turntable 11. The optical pickup 12 optically scans a disk (not shown) placed on the turntable 11, and the perspective direction coincides with the radial direction R of the disk. The optical pickup 12 is provided with a first rack 14 of the first pinion rack mechanism 13, and a first pinion 15 which is the counterpart is interposed in a gear train 20 shown in FIG. The lock mechanism 16 includes an engagement pin 16 a provided integrally with the first rack 14, and an engagement groove portion 16 b provided in the movable frame 17 movable in a direction orthogonal to the movement direction of the first rack 14. Thus, when the optical pickup 12 is located at the initial position shown in FIG. 12, the engaging pin 16 is fitted into the engaging groove 16b as shown in the figure to prevent the first rack 14 from moving. As a result, while the optical pickup 12 is held at the initial position (locked state), when the movable frame 17 moves forward from the locked state in the right direction (arrow b) in FIG. Guided by a cam groove 16c continuous with 16b, the first rack 14 is pushed back as shown by an arrow a. Here, when the optical pickup 12 is located at the initial position, the first rack 14 is separated from the first pinion 15 as shown in the figure, and the cam groove 16c is moved by the forward movement of the movable frame 17 in the arrow b direction. When the guided engagement pin 16 a pushes the first rack 14, the first rack 14 meshes with the first pinion 15, and the optical pickup 12 is aligned in the radial direction R of the disk according to the rotation direction of the first pinion 15. The disk is moved backward to perform optical processing of the disk. The lock release mechanism 18 has a function of releasing the lock state by the lock mechanism 16. The lock release mechanism 18 includes one end edge 31a of a long hole 31 provided in a first cam plate 30A of a slider 30 described later, and a locking shaft that protrudes from the movable frame 17 and is fitted into the long hole 31. 32, and the slider 30 moves in the direction of the arrow c, and the one end edge 31a of the long hole 31 operates by pushing and moving the locking shaft 32 in the right direction in the figure. The gear train 20 shown in FIG. 19 is disposed in the front space S of the frame frame 10 and transmits the rotation of the motor M installed in the motor installation space S1 of the frame frame 10.

  In this embodiment, the above-described disk drive means A is accommodated in a housing 100 (see FIG. 1 and the like), and the disk transport means comprising the transport rollers 25 shown in FIG. The conveying roller 25 is combined with the disk drive means A by being attached.

  The transport roller 25 has a support shaft 26 fitted in a cam groove 33 provided in a second cam plate 30B of a slider 30 (see FIG. 1 and the like) and a driven gear 27 at an end thereof. A gear 28 which is a counterpart of the driven gear 27 is interlocked and connected to the terminal gear 29 of the gear train 20 through a second pinion 43 (described later). When the second cam plate 30B moves, the driven gear 26 moves between a position where the driven gear 26 meshes with the gear 28 and a position where the meshing is released due to the vertical movement of the support shaft 26 guided by the cam groove 33. .

  As shown in FIG. 1 to FIG. 5 or FIG. 6 to FIG. 8, the housing 100 accommodates the disk drive means A described above, as well as the disk stopper 50, the slider 30, the disk clamp mechanism 60, and the like. Contained.

  The disk stopper 50 is attached to the housing 100 so as to face the disk loading direction and move forward and backward along a straight path parallel to the loading direction. The disk stopper 50 has an outer periphery of a disk-shaped disk. Locking portions 51 and 51 are provided which engage with two portions of the end face and exert a centripetal action on the disk.

  The slider 30 includes a third cam plate 30C, and the first cam plate 30A and the second cam plate 30B described above are raised from both edges in the width direction of the third cam plate 3C. The second cam plate 30B is provided with a cam groove 34 for raising and lowering the disk clamp mechanism 60 in addition to the cam groove 33 for moving the support shaft 26 of the transport roller 25 up and down. The grooves 33 and 34 are formed in substantially the same shape. The disk clamp mechanism 60 is configured such that one end 62 of a clamper holder 61 having an engagement shaft 65 fitted in the cam groove 34 at an intermediate portion is rotatably connected to the housing 100 and is connected to the clamper holder 61. Is attached with a clamper 63 for holding the disk in cooperation with the turntable 11.

  The slot-in type disk apparatus shown in the figure includes a disk stopper push-off mechanism that moves the disk stopper 50 back to a position away from the disk in accordance with the timing when the carry-in roller 25 finishes loading the disk, and the disk stopper push-off mechanism. A disk transport stop mechanism (configured by the cam groove 33) that retracts the transport roller 25 from the operating position to the non-operating position in conjunction with the retracting operation of the transport roller 25 by the disk transport stop mechanism is described above. The disk clamp mechanism 60 operates in conjunction with the operation of the lock release mechanism 18. Next, the disc stopper push-off mechanism will be described.

The disk stopper pressing mechanism includes the slider 30 integrally including a second rack 71 that meshes with the second pinion 43 interposed in the gear train 20, a pressing cam mechanism 72 formed on the slider 30, A single control arm 76 that converts the sliding motion of the slider 30 into the backward motion of the disk stopper 50 through the action of the push cam mechanism 72 is provided.

  The push-off cam mechanism 72 will be described with reference to FIG. The push-off cam mechanism 72 includes a cam surface 73 having a predetermined shape and a cam follower 74 that cooperates with the cam surface 73, and the cam surface 73 has one recessed portion 73 a that defines the initial position of the cam follower 74. Whereas one engaging portion 73b and two push-cutting action portions 73c and 73d are provided, the cam follower 74 has an intermediate portion that is freely rotatable toward the housing 100 via the shaft body 77. It is provided at one end of the attached substantially L-shaped control arm 76. In this push-off cam mechanism 72, the engaging portion 73b and the cam follower 74 form a first starting means corresponding to the large size disk D1. Further, the projection 78 provided on the slider 30 and the cam follower 74 opposed to the cam follower 74 located at the initial position (the recessed portion 73a) of the cam surface 73 form a second starting means corresponding to the small size disk D2. Yes. The first starting means and the second starting means slide the slider 30 in accordance with the timing at which the loading of the disks D1 and D2 by the transport roller 25 is completed, thereby separating the second rack 71 from the second pinion 43. The slider starting means is configured to move to the meshing position with respect to the second pinion 43. On the other hand, the other end of the control arm 76 is provided with a long hole 79, and a locking projection 52 provided on the disk stopper 50 is slidably fitted in the long hole 79.

  The operation of the first starter and the operation of the second starter are selected by the select mechanism 90 attached to the housing 100. That is, when the large size disk D1 is loaded, the selection mechanism 90 operates only the first starting means, and when the small size disk D2 is loaded, the selection mechanism 90 operates only the second starting means.

  The selection mechanism 90 has a selection bar 91 shown in FIG. The select lever 91 has a base end portion 92 rotatably attached to the housing 100, and a spring plate 93 integrally formed at the tip end portion thereof, and the select lever 91 swings around the base end portion 92. As a result, the spring plate 93 is located between the cam follower 74 and the projection 78 located at the initial position of the cam surface 73 (shown in phantom lines in FIG. 7), the cam follower 74 and the projection 78. It moves in the position retracted to the outside of the mutual position. Further, the select lever 91 is always urged and urged by a spring 94 in the direction in which the spring plate 93 approaches the position between the cam follower 74 and the projection 78 as shown in FIG. Is provided with a sliding contact portion 95 that is pushed out by the large size disc D1 when the large size disc D1 is loaded.

  In the slot-in type disk device of the embodiment having the above-described configuration, it is possible to selectively use a large size disk (diameter 12 cm) D1 and a small size disk (diameter 8 cm) D2. Hereinafter, the operation when the respective disks D1 and D2 are used will be described.

  1 to 5 show stages from loading a large-size disk D1 (hereinafter referred to as “disk D1”) to deployment at the set position.

  When the disk D1 is inserted into the slot portion of the housing 100, a feeding force is applied to the disk D1 by the rotation of the transport roller 25, and the disk D1 is carried in as indicated by an arrow d in FIGS. In this case, the rotation of the motor M shown in FIG. 9 is transmitted to the transport roller 25 through a second transmission path formed by the gear train 20, the gear 28, and the driven gear 27.

  The disk D1 to which the feeding force is applied by the transport roller 25 is fed as indicated by an arrow d in FIGS. 2A and 2B, and two locking portions 51, 51 of the disk stopper 50 are located at two locations on the outer peripheral end surface. And the disk D1 pushes out the sliding contact portion 95 of the select lever 91, and the select lever 91 swings outward along with this, and the spring plate 93 is in the initial position with the cam follower 74 and the protrusion 78. Retreat to the outside of the position between.

  When the disk D1 to which the feeding force is applied from the conveying roller 25 then pushes the disk stopper 50 back as shown by an arrow e in FIG. 3A, the backward movement of the disk stopper 50 causes the control arm 76 to swing. Therefore, the cam follower 74 that has been located at the initial position of the cam surface 73 moves to the engagement portion 73b of the cam surface 73. Thereafter, when the disk D1 to which the feeding force is applied from the transport roller 25 further retracts the disk stopper 50, the disk stopper 50 is pushed in from the vicinity of the pushing limit position to the pushing limit position and is engaged with the engaging portion 73b. The cam follower 74 is pushing the engaging portion 73b to slide the slider 30 as shown by an arrow g in FIG. By the sliding of the slider 30 at this time, the second rack 71 moves from the separated position with respect to the second pinion 43 to the meshing position with respect to the second pinion 43. Therefore, the rotation of the first pinion 43 is transmitted to the second rack 71, and when the slider 30 moves as indicated by the arrow g by the rotation of the first pinion 43, the cam groove 33 as shown in FIG. With this guiding action, the support shaft 26 of the transport roller 25 is lowered from the operating position to the non-operating position, the transport roller 25 is separated from the disk D1, and the loading of the disk D1 is completed. At the same time, as shown in FIG. 5B, the engaging shaft 65 of the disc clamper 60 is lowered by the guide action of the cam groove 34, and the disc D 1 is sandwiched between the turntable 11 and the clamper 63. Further, the slide of the slider 30 at this time causes the cam follower 74 to reach one push-off action portion 73 c of the cam surface 73 as shown in FIGS. Since this push-cut action part 73c has a level difference δ with respect to the cam surface 73, when the cam follower 74 reaches one push-cut action part 73c of the cam face 73, the control arm 76 is moved to FIG. The disk stopper 50 retreats as shown by the arrow h in FIGS. 5A and 5B and moves away from the disk D1. Further, the lock release mechanism 18 described with reference to FIG. 12 starts to operate at the timing when the loading of the disk D1 ends, and the first rack 14 of the first pinion rack mechanism 13 is engaged with the first pinion 15. Therefore, the rotation of the motor M is transmitted to the first rack 14 via the first pinion 15 via the first transmission path formed by the gear train 20, and the optical pickup 12 starts running.

  When the disk D1 is unloaded, the rotation of the motor M is switched in the reverse direction. Therefore, the engagement pin 16a of the first rack 14 enters the engagement groove portion 16a via the cam groove 16c and is locked, the clamper 63 is restored, and the slider 30 is rotated in accordance with the reverse rotation of the second pinion 43. The disk stopper 50 pushes out the disk D1 through the reverse swing of the control lever 76 performed through the sliding operation in the return direction, and the transport roller 25 that has returned to the operating position exerts a discharging action. D1 is carried out.

  6 to 8 show stages from the stage of loading a small size disk D2 (hereinafter referred to as “disk D2”) to the stage where it is set at the set position.

  When the disk D2 is inserted into the slot portion of the housing 100, a feeding force is applied to the disk D2 by the rotation of the conveying roller 25, which is transmitted through the second transmission path of the gear train 20, so that the disk D2 is rotated. It is carried in as shown by the arrow d in FIG.

  As shown in FIG. 7, the disk D <b> 2 to which the feeding force is applied by the transport roller 25 is subjected to a centripetal action by the two locations on the outer peripheral end surface abutting against the two locking portions 51 and 51 of the disk stopper 50. Since the disk D2 is a small size, the select lever 91 does not move forward during the loading operation of the disk D2. When the disk D2 to which the feeding force is applied from the conveying roller 25 subsequently pushes the disk stopper 50 as shown in FIG. 7, the backward movement of the disk stopper 50 is converted into the swing of the control arm 76. The cam follower 74 located at the initial position of the surface 73 pushes and deforms the spring body 93 interposed between the cam follower 74 and the projection 78 to push the projection 78 as indicated by an arrow i. Therefore, the slider 30 slides, and the second rack 71 moves from the separated position with respect to the second pinion 43 to the meshing position with respect to the second pinion 43. Thereafter, the rotation of the first pinion 43 is transmitted to the second rack 71, and when the slider 30 moves as indicated by the arrow g by the rotation of the first pinion 43, the guide action of the cam groove 33 as described above. Thus, the support shaft 26 of the conveying roller 25 is lowered from the operating position to the non-operating position, the conveying roller 25 is separated from the disk D1, and the loading of the disk D2 is completed. At the same time, the engaging shaft 65 of the disc clamper 60 is lowered by the guide action of the cam groove 34, and the disc D2 is held between the turntable 11 and the clamper 63 (see FIG. 5). Further, the slide of the slider 30 at this time causes the cam follower 74 to reach the other push-off action portion 73d of the cam surface 73 as shown in FIG. Since this push-cutting action portion 73d also has a level difference with respect to the cam surface 73, when the cam follower 74 reaches the other push-cutting action portion 73d of the cam face 73, the control arm 76 moves in the direction of the arrow f in FIG. The disk stopper 50 moves backward as indicated by an arrow h and moves away from the disk D2. Also, the lock release mechanism 18 described with reference to FIG. 12 starts to operate at the timing when the loading of the disk D2 ends, and the first rack 14 of the first pinion rack mechanism 13 is engaged with the first pinion 15. Therefore, the rotation of the motor M is transmitted to the first rack 14 via the first pinion 15 via the first transmission path formed by the gear train 20, and the optical pickup 12 starts running.

  When the disk D2 is unloaded, the rotation of the motor M is switched in the reverse direction. Therefore, the engagement pin 16a of the first rack 14 enters the engagement groove portion 16a via the cam groove 16c and is locked, the clamper 63 is restored, and the slider 30 is rotated in accordance with the reverse rotation of the second pinion 43. The disk stopper 50 pushes out the disk D2 through the reverse swing of the control lever 76 performed through the sliding operation in the return direction, and the transport roller 25 returned to the operation position exerts a discharging action. D2 is carried out.

(A) is a schematic plan view in the initial stage of carrying in a large-size disk, and (B) is a schematic side view thereof. (A) is a schematic plan view of a state in which a large size disk is engaged with a disk stopper, and (B) is a schematic side view of the same. (A) is a schematic plan view of a state immediately before the end of loading of a large-sized disc, and (B) is a schematic side view thereof. (A) is a schematic plan view of a state in which the large-size disk has been carried in, and (B) is a schematic side view thereof. (A) is a schematic plan view of a state in which the disk stopper is separated from the large size disk, and (B) is a schematic side view of the same. It is a schematic plan view of the initial stage of carrying in a small size disk. It is a schematic plan view of a state in which the small-size disk has been loaded. FIG. 6 is a schematic plan view of a state in which the disk stopper is separated from the small size disk after the small size disk has been loaded. It is explanatory drawing of a gear train. It is a top view of a control arm. (A) (B) is explanatory drawing which showed the structure etc. of the push-off cam mechanism. It is the cross-sectional view which showed the lock mechanism and the lock release mechanism explanatory. It is an enlarged view corresponding to the XIII arrow line view of FIG.

Explanation of symbols

A disk drive means D1 large size disk D2 small size disk 11 turntable 12 optical pickup 13 first pinion rack mechanism 14 first rack 15 first pinion 16 lock mechanism 18 lock release mechanism 20 gear train 25 transport roller (disk transport means) )
30 Slider 43 Second pinion 50 Disc stopper 60 Disc clamp mechanism 71 Second rack 72 Push-off cam mechanism 73b Engaging portion 73 Cam surface 74 Cam follower 76 Single control arm 78 Protrusion 90 Select mechanism 91 Select lever 93 Spring plate 33, 34 Cam groove (cam mechanism)

Claims (3)

A turntable, an optical pickup that travels in a direction along the radial direction of the disk mounted on the turntable and performs optical processing on the disk, and a first pinion rack mechanism for running the optical pickup; A lock mechanism that holds the optical pickup in an initial position by separating the first rack of the first pinion rack mechanism from the first pinion, a lock release mechanism that releases a lock state by the lock mechanism, and the first A disk drive means including a pinion and a gear train connected to a motor is applied with a feeding force to a disk selected from two types of disks of different sizes, and the disk is carried into the turntable. In combination with the disc transport means
A first transmission path for transmitting the power of the motor to the first pinion and a second transmission path for transmitting the power of the motor to the disk transport means are formed by the gear train, and a disk carried by the disk transport means is A disk stopper that is engaged and pushed in a backward direction along the straight path by the disk, and a disk stopper that moves the disk stopper back to a position away from the disk in accordance with the timing when the disk loading by the disk transport means is completed. A disc transport mechanism, a disc transport stop mechanism that retracts the disc transport means from an operating position to a non-operating position in conjunction with the disc stopper press-cut mechanism, a retract operation of the disc transport stop mechanism, and an operation of the lock release mechanism A disc that holds the disc on the turntable in conjunction with Includes a clamp mechanism, the,
The disk stopper pressing mechanism includes a slider integrally including a second rack meshing with a second pinion interposed in the gear train, a pressing cam mechanism formed on the slider, and a mechanism of the pressing cam mechanism. A single control arm that converts the sliding movement of the slider through the action into the backward movement of the disk stopper,
The push-off cam mechanism slides the slider in accordance with the timing when the loading of the disk by the disk conveying means is completed, so that the second rack is engaged with the second pinion from the separated position with respect to the second pinion. Slider starting means for moving to a position, and the slider starting means cooperates with the cam surface of the push cam mechanism to form the push cam mechanism. The disk stopper is constituted by a cam follower that engages with the engaging portion and pushes the engaging portion when the disc stopper is pushed from the vicinity of the pushing limit position to the pushing limit position by a large size disk. First starting means corresponding to a large size disk, and the cam located at an initial position of the cam surface A projection provided on the slider facing the follower, and a cam follower that slides the slider by pushing the projection when the disc stopper is pushed from near the pushing limit position to the limit position by a small size disc. The second starter is configured to correspond to the small size disk and is operated only when the large size disk is loaded, and the second start is performed when the small size disk is loaded. It has a select mechanism that operates only the means,
The select mechanism is interposed between the cam follower positioned at the initial position of the cam surface when the disc is not loaded and the projection, and responds only when a large size disc is loaded and the cam follower and the projection. With a spring plate that retracts to the outside of the position between
The operation of pushing the projection by the cam follower of the second starting means is performed via the spring plate that is pushed and deformed by the cam follower, and a large-sized disc is loaded into the spring plate. When the small size disk is loaded, the spring plate is moved to the initial position when the small size disk is loaded. Provided at the tip of the select lever that keeps the position between each other, each operation of the disc transport stop mechanism and the disc clamp mechanism is controlled by each cam mechanism provided on the slider together with the push cam mechanism. A slot-in type disk device, characterized in that it is configured as described above. A turntable, an optical pickup that travels in a direction along the radial direction of the disk mounted on the turntable and performs optical processing on the disk, and a first pinion rack mechanism for running the optical pickup; A lock mechanism that holds the optical pickup in an initial position by separating the first rack of the first pinion rack mechanism from the first pinion, a lock release mechanism that releases a lock state by the lock mechanism, and the first A disk drive means including a pinion and a gear train connected to a motor is applied with a feeding force to a disk selected from two types of disks of different sizes, and the disk is carried into the turntable. In combination with the disc transport means
The gear train forms a first transmission path for transmitting the power of the motor to the first pinion and a second transmission path for transmitting the power to the disk transport means, and the disk carried by the disk transport means is engaged. And a disk stopper that is pushed backward along the straight path by the disk, and a disk stopper that retracts the disk stopper to a position away from the disk in accordance with the timing when the loading of the disk by the disk conveying means is completed. A disc transport mechanism, a disc transport stop mechanism that retracts the disc transport means from the operating position to the non-operating position in conjunction with the disc stopper push-off mechanism, a retract operation of the disc transport stop mechanism, and an operation of the lock release mechanism. The disk that holds the disk on the turntable in conjunction with Includes a ramp mechanism, the,
The disk stopper pressing mechanism includes a slider integrally including a second rack meshing with a second pinion interposed in the gear train, a pressing cam mechanism formed on the slider, and a mechanism of the pressing cam mechanism. A single control arm that converts the sliding movement of the slider through the action into the backward movement of the disk stopper,
The push-off cam mechanism slides the slider in accordance with the timing when the loading of the disk by the disk conveying means is completed, so that the second rack is engaged with the second pinion from the separated position with respect to the second pinion. A slider starting means for moving to a position;
The slider starting means is divided into a first starting means corresponding to a large size disk and a second starting means corresponding to a small size disk, and operates only the first starting means when a large size disk is loaded. And a selection mechanism that operates only the second starting means when a small-sized disk is carried in,
The first starting means cooperates with the engaging portion provided on the cam surface of the push-off cam mechanism and the cam surface to form the push-off cam mechanism, and the disc stopper is pushed in by a large size disc. A cam follower that slides the slider by engaging the engaging portion and pushing the engaging portion when pushed from near the limit position to the pushing limit position;
The second starter is pushed from the vicinity of the pushing limit position to the limit position by a protrusion provided on the slider facing the cam follower located at the initial position of the cam surface and a small size disk. It is constituted by the cam follower that slides the slider by pressing the protrusion when
The select mechanism is interposed between the cam follower positioned at the initial position of the cam surface when the disc is not loaded and the projection, and responds only when a large size disc is loaded and the cam follower and the projection. With a spring plate that retracts to the outside of the position between
A slot-in type disk device , wherein the operation of pushing the projection by the cam follower of the second starting means is performed through the spring plate which is pushed and deformed by the cam follower . A turntable, an optical pickup that travels in a direction along the radial direction of the disk mounted on the turntable and performs optical processing on the disk, and a first pinion rack mechanism for running the optical pickup; A lock mechanism that holds the optical pickup in an initial position by separating the first rack of the first pinion rack mechanism from the first pinion, a lock release mechanism that releases a lock state by the lock mechanism, and the first A disk drive means including a pinion and a gear train connected to a motor is applied with a feeding force to a disk selected from two types of disks of different sizes, and the disk is carried into the turntable. In combination with the disc transport means
The gear train forms a first transmission path for transmitting the power of the motor to the first pinion and a second transmission path for transmitting the power to the disk transport means, and the disk carried by the disk transport means is engaged. And a disk stopper that is pushed backward along the straight path by the disk, and a disk stopper that retracts the disk stopper to a position away from the disk in accordance with the timing when the loading of the disk by the disk conveying means is completed. A disc transport mechanism, a disc transport stop mechanism that retracts the disc transport means from the operating position to the non-operating position in conjunction with the disc stopper push-off mechanism, a retract operation of the disc transport stop mechanism, and an operation of the lock release mechanism. The disk that holds the disk on the turntable in conjunction with Includes a ramp mechanism, the,
The disk stopper pressing mechanism includes a slider integrally including a second rack meshing with a second pinion interposed in the gear train, a pressing cam mechanism formed on the slider, and a mechanism of the pressing cam mechanism. A single control arm that converts the sliding movement of the slider through the action into the backward movement of the disk stopper,
The push-off cam mechanism slides the slider in accordance with the timing when the loading of the disk by the disk conveying means is completed, so that the second rack is engaged with the second pinion from the separated position with respect to the second pinion. A slider starting means for moving to a position;
The slider starting means is divided into a first starting means corresponding to a large size disk and a second starting means corresponding to a small size disk, and operates only the first starting means when a large size disk is loaded. And a selection mechanism that operates only the second starting means when a small-sized disk is carried in,
The first starting means cooperates with the engaging portion provided on the cam surface of the push-off cam mechanism and the cam surface to form the push-off cam mechanism, and the disc stopper is pushed in by a large size disc. A cam follower that slides the slider by engaging the engaging portion and pushing the engaging portion when pushed from near the limit position to the pushing limit position;
The second starter is pushed from the vicinity of the pushing limit position to the limit position by a protrusion provided on the slider facing the cam follower located at the initial position of the cam surface and a small size disk. It is constituted by the cam follower that slides the slider by pressing the protrusion when
The select mechanism is interposed between the cam follower positioned at the initial position of the cam surface when the disc is not loaded and the projection, and responds only when a large size disc is loaded and the cam follower and the projection. With a spring plate that retracts to the outside of the position between
The operation of pushing the projection by the cam follower of the second starting means is performed via the spring plate that is pushed and deformed by the cam follower, and a large-sized disc is loaded into the spring plate. When the small size disk is loaded, the spring plate is moved to the initial position when the small size disk is loaded. A slot-in type disk device, wherein the slot-in type disk device is provided at a tip of a select lever that maintains the mutual position .

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