JP2006155690A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk device which prevents the malfunction of the device by blocking the entrance of a disk of 8 cm into the device, in the slot-in type disk device for only the disk of 12 cm. <P>SOLUTION: In the state in which a disk support arm 17 waits for the disk D of 12 cm to be carried in, the disk support arm 17 is arranged so that a disk abutment part 18 is positioned in a range where two areas of a first area where the disk Ds of 8 cm passes when the disk Ds of 8 cm is inserted from an insertion inlet 3a along a first guide part 27 and a second area where the disk Ds of 8 cm passes when the disk Ds of 8 cm is inserted from the insertion inlet 3a along a second guide part 29 overlap. Thus, the disk Ds of 8 cm is prevented from being accommodated into the device. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention drives a disk (for example, CD-R / RW, DVD-R / -RW / RAM / + R / + RW, etc.) as a recording medium for recording a large amount of information in information devices such as various computer systems. More particularly, the present invention relates to a structure for preventing erroneous insertion of disks having different diameters.

  Generally, a disk device built in a personal computer (hereinafter referred to as a personal computer) or the like is usually provided with a disk tray for loading a disk, and the disk tray is configured to move forward and backward. Then, the disk loaded in the disk tray is driven in the main body of the disk device, and information is recorded or reproduced.

  On the other hand, as a system that does not use a disk tray, so-called slot-in type disk devices tend to be often employed, which is suitable for making a personal computer thinner and smaller. Since this slot-in type disk device does not use a disk tray for loading (unloading) / unloading (unloading) a disk into the apparatus body, the operator inserts a majority of the disk into an insertion slot (slot). The loading mechanism of the apparatus main body is activated and automatically loaded.

  FIGS. 17 and 18 show the configuration and operation of the loading mechanism in a conventional slot-in type disk device. In the configuration shown in the figure, when the operator inserts the disc D, the disc D is inserted into the pin 100a at the front end of the first oscillating body 100, the left and right guide bodies 101 and 102, and the second oscillating body 103 from the middle. The position reaches the position shown in FIG. 17 while the height direction and the left-right position are restricted by the pin 103a at the tip.

  At this time, the first rocking body 100 is rotated in the direction of arrow 100A by pushing the tip pin 100a by the disk D, and the second rocking body 103 is also pushed by the disk D by the tip pin 103a being pushed by the arrow 103A. Rotate in the direction. Then, the switch lever 104 is pushed by the end of the second oscillating body 103 and rotates in the direction of the arrow 104A, and the detection switch 105 is operated.

  When the detection switch 105 is activated, the driving means 106 is started, and the movement of the first slide member 107 in the direction of the arrow 107A is started. The first slide member 107 and the second slide member 108 are connected at their respective ends by a slide connecting member 109, and the slide connecting member 109 is pivotally supported by a pin 110 so that the first slide member 107 and the second slide member 108 are pivoted. In synchronization with the retraction of the slide member 107, the second slide member 108 advances in the direction of the arrow 108A.

  Thus, when the first slide member 107 starts to move backward, the first rocking body 100 supported by the slide member 107 in a cantilever state is driven by the cam groove 107a of the first slide member 107. Since 100b is guided, the rocking body 100 rotates in the direction of the arrow 100B around the fulcrum 100c. As a result, the pin 100a at the tip of the first oscillating body 100 conveys the disk D in the direction of the arrow 107A until it abuts against the pins 111a and 111b of the disk positioning member 111.

  At this time, since the pin 103a of the second rocking body 103 rotates in the direction of the arrow 103A, the pin 103a of the second rocking body 103 is synchronized with the pin 100a at the tip of the first rocking body 100 and the disk D is rotated. It moves in the direction of arrow 103A while being supported. Then, after the disk D comes into contact with the pins 111a and 111b of the disk positioning member 111, the disk D rotates to a position slightly away from the disk D.

  The above is the operation mode of the loading mechanism when the disk D is carried into the apparatus, but the loading mechanism when the disk D is carried out of the apparatus is an operation mode opposite to the above-described operation. That is, when the disk D is in a fixed position inside the apparatus, when the driving means 106 is started in the reverse direction based on the unload instruction, the first slide member 107 starts to advance in the direction of the arrow 107B. Along with this, the second slide member 108 connected to the connecting member 109 starts to retract in the direction of the arrow 108B in synchronization. As a result, the first oscillating body 100 rotates in the direction of the arrow 100A and the second oscillating body 103 rotates in the direction of the arrow 103B, so that the disk is supported by the pins 100a and 103a at the leading ends and carried out of the apparatus. Will be.

In the disk apparatus configured as described above, the disk D carried into the apparatus is clamped by the clamp head 112 that moves up and down at a fixed position. The clamp head 112 is integrated with a turntable 113 fixed to the drive shaft of the spindle motor 114. Further, the spindle motor 114 is disposed on a frame member, and the frame member is moved up and down by an elevating mechanism (for example, Patent Document 1).
JP 2002-117604 A

  The disk device thus configured is intended to accurately load a disk having a diameter of 12 cm into the disk device. That is, the loading mechanism for loading the disk into the disk device is for a 12 cm disk. As shown in FIGS. 17 and 18, the pin 100a at the tip of the first rocking body 100 and the left and right guide bodies are used. 101 and 102, and the pin 103a at the tip of the second oscillating body 103 are arranged so as to regulate the height direction and the left-right position of the 12 cm disc. The pins 111a and 111b of the disk positioning member 111 are also arranged to position the 12 cm disk. Therefore, in the slot-in type disk device having such a configuration, only a disk having a diameter of 12 cm is used, and disks having other diameters are not used.

  However, discs such as CD and DVD include 8 cm discs with a diameter standardized to 8 cm in addition to a 12 cm disc standardized with a diameter of 12 cm. 8 cm discs are widely used especially for portable electronic devices such as video cameras. If this 8cm disc is accidentally inserted into the disc unit from the insertion slot due to carelessness of the operator, the 8cm disc may be caught in the mechanism of the loading mechanism, or the entire 8cm disc may be inserted into the disc unit from the insertion slot. The 8 cm disc could not be removed by the operator.

  The present invention has been made in view of the above-described problems of the prior art, and even if a disk having a small diameter is erroneously inserted from the insertion slot by an operator, the disk is accommodated in the disk device. It is an object of the present invention to provide a disk device that can prevent the removal from being made impossible.

  In the present invention, the above-described problems are solved by each means described below. That is, the present invention relates to an insertion slot into which a disc-shaped recording medium is inserted, a first guide portion for guiding one side of the disc-shaped recording medium inserted from the insertion slot, and a disc-shaped recording inserted from the insertion slot. Disc-shaped recording is provided with a second guide portion that guides the other side of the medium and a disc contact portion that abuts against the disc-shaped recording medium inserted from the insertion port, and supports and swings the disc-shaped recording medium. A disk support arm for conveying the medium; and a recording / reproducing unit for recording and / or reproducing information with respect to the disk-shaped recording medium conveyed into the apparatus by the disk support arm. By moving, the first disc-shaped recording medium whose diameter is normalized to the dimension dA and the second whose diameter is normalized to the dimension dB (dB <dA) smaller than the dimension dA. Of the two types of disc-shaped recording media different from the disc-shaped recording media, the disc device is configured to load / unload the first disc-shaped recording medium, and the disc-shaped recording medium is inserted from the insertion slot. In this state, the entire second disc-shaped recording medium is inserted into the apparatus from the insertion port regardless of where the second disc-shaped recording medium is inserted. Before the recording, the disk support arm is arranged so that the disk contact portion contacts the second disk-shaped recording medium, so that the second disk-shaped recording medium is prevented from being housed inside the apparatus. It is characterized by that.

  Further, in the present invention, with the disc contact portion removed, the second disc-shaped recording medium is inserted in sliding contact with the first guide portion until the rear end portion in the insertion direction coincides with the insertion port. The area through which the second disk-shaped recording medium passes is defined as the first area, and the second disk-shaped recording medium is brought into sliding contact with the second guide section in a state where the disk contact portion is removed. However, when the area through which the second disc-shaped recording medium passes is defined as the second area when the insertion is made until the rear end portion in the insertion direction coincides with the insertion slot, the first area overlaps with the second area. In this state, the disk support arm is arranged so that the disk abutting portion is located within the range to wait for the disk-shaped recording medium to be inserted from the insertion slot.

  According to the present invention, even if a disk-shaped recording medium having a small diameter is erroneously inserted from the insertion slot by an operator, the disk contact portion of the disk support arm always contacts this disk-shaped recording medium. In contact, the entire disc-shaped recording medium is reliably prevented from being accommodated inside the apparatus.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a view showing the appearance of a slot-in type disk device 1 embodying the present invention. An opening 2a is formed at the center of a top plate of a chassis case 2 configured in a shield state. A convex portion 2b is formed on the peripheral edge of the opening 2a. A bezel 3 is fixed to the front end of the chassis case 2, and a disc D (first disc-shaped recording medium) having a prescribed outer diameter (specifically, a diameter of 12 cm) is inserted into the bezel 3. And a push button 4 for instructing to carry out the disk D accommodated inside the apparatus, and an indicator 5 for displaying the operating state of the disk apparatus 1.

  FIG. 2 is a plan view of the disk device 1 with the top plate portion of the chassis case 2 removed, and FIG. 3 is a perspective view thereof. A base panel 6 is disposed in the chassis case 2, and a recording / reproducing unit A for recording and / or reproducing information with respect to the disk D is provided in a state of being arranged obliquely forward from the center thereof. Yes. In this recording / reproducing section A, the frame member 8 to which the clamp head 7 for clamping the center hole Da of the disk D is fixed is attached to the base panel 6 at a plurality of locations (three locations in this embodiment) by a known buffer support structure 9. It is connected. The frame member 8 has a cantilevered support structure in which the rear side of the apparatus can be moved up and down about the insertion port 3a as a rotation axis in order to clamp or release the disk D by the clamp head 7.

  The clamp head 7 is formed integrally with the turntable 10 and is fixed to a drive shaft of a spindle motor 11 arranged immediately below. Then, the disk D clamped to the clamp head 7 by the spindle motor 11 and supported on the turntable 10 is driven to rotate, and information is recorded / reproduced.

  Next, a symbol B is a head unit supported by the frame member 8, and an optical pickup 12 for irradiating the disk D with laser is supported at both ends by guide shafts (not shown) fixed to the frame member 8. It is reciprocated by a thread motor 16 and a gear train (not shown).

  Reference numeral 17 denotes a disk support arm that supports the front end side of the disk D with a diameter of 12 cm in the insertion direction, guides it into the apparatus, and pushes it out of the apparatus. An end serving as a swing fulcrum of the disk support arm 17 extends to the back side of the base panel 6 through a slit 6 a formed in the base panel 6, and is supported by a pivot pin 20 fixed to the back side of the base panel 6. It is supported so that it can turn. As a result, the disk support arm 17 swings within the range of the slit 6a.

  When a disk D (first disk-shaped recording medium) having a diameter of 12 cm is inserted into the tip of the disk support arm 17, the disk D is supported by contacting the front end of the disk D in the insertion direction, and a disk Ds ( When the second disc-shaped recording medium) is inserted, a disc abutting portion 18 that abuts the front end of the disc Ds in the insertion direction and prevents the disc Ds from being accommodated in the apparatus is fixed.

  Reference numeral 21 denotes an attracting arm that supports the rear end side in the insertion direction of the disk D having a diameter of 12 cm and pushes the disk D into the apparatus and guides it to the outside of the apparatus. The attracting arm 21 is pivotally supported at one end by a pivot pin 22 fixed to the chassis case 2, and has a disk support portion 21 a that abuts against the disk D at the other end.

  Reference numeral 27 denotes a guide member (first guide portion) for guiding the left side surface of the disk D inserted from the insertion port 3a, and reference numeral 29 denotes a guide member for guiding the right side surface of the disk D inserted from the insertion port 3a. (Second guide portion). The disc D inserted from the insertion port 3a is conveyed while being supported by the disc support arm 17 and the attracting arm 21 while the left and right side surfaces are guided by the guide members 27 and 29.

  Next, the loading mechanism C that swings the disk support arm 17 and the attracting arm 21 and moves the frame member 8 up and down will be described. FIG. 4 is a plan view showing the planar state in which the loading mechanism C is configured with the base panel 6 removed. The loading mechanism C is connected to the motor 30 via a motor 30 as drive means and a gear train (not shown), and the rack main body 32 that moves in the X1-X2 direction by the driving force of the motor 30 and the rack main body 32 It consists of connected arm drive mechanisms C1 and C2 and a frame member drive mechanism C3. The arm drive mechanism C1 swings the disk support arm 17, the arm drive mechanism C2 swings the attracting arm 21, and the frame member drive mechanism C3 moves the frame member 8 up and down.

  The arm drive mechanism C1 is generally composed of a guide groove 32a formed on the upper surface of the rack main body 32, a lever arm 37, a first link arm 38, a second link arm 39, and a lock lever 40. FIG. 5 is an exploded perspective view for explaining the arm drive mechanism C1. The first link arm 38 that directly drives the disk support arm 17 is connected to the disk support arm 17 by a pivot pin 17a. On the other hand, slits 39 a and 39 b are formed in the second link arm 39, and the rivet pin 42 is inserted through the slits 39 a and 39 b, and the tip of the rivet pin 42 is fixed to the first link arm 38. Thus, the assembly of the first link arm 38 and the second link arm 39 is integrated so as to be extendable and contractable within the range of the slits 39a and 39b. The first link arm 38 and the second link arm 39 are formed with notches 38a and 39c on which the locking end 40a of the lock lever 40 acts.

  Reference numeral 44 denotes a tension coil spring, one end of which is locked to the back surface of the base panel 6 and the other end of which is locked to the first link arm 38. Due to the elastic force of the tension coil spring 44, the first link arm 38 is urged in the A1 direction.

  The lever arm 37 is pivotally supported by a pivot pin 37b (see FIG. 6) in which a hole 37a serving as a pivot is fixed to the back surface of the base panel 6, and a pivot pin 37c is provided at one end. The pivot pin 37d is fixed to the other end. The pivot pin 37 c is fitted in the guide groove 32 a of the rack main body 32, and the pivot pin 37 d is inserted into the hole 39 d of the second link arm 39 and the hole 40 b of the lock lever 40.

  A torsion coil spring 45 is disposed between the second link arm 39 and the lock lever 40, one end 45a of the second link arm 39 is engaged with the recess 39e, and the other end 45b of the lock lever 40. Locked in the recess 40c. As a result, the locking end 40 a of the lock lever 40 is biased in a direction to engage with the cutout portion 38 a of the first link arm 38 and the cutout portion 39 c of the second link arm 39.

  On the back surface of the base panel 6, a limit switch 47 (see FIG. 6) that is activated when the first link arm 38 reaches a predetermined position, and the second link arm 39 reaches a predetermined position. At this time, an activation pin 48 (see FIG. 6) for pressing and driving the rear end portion 40d of the lock lever 40 is provided.

  Next, operation modes of the arm drive mechanism C1 and the disk support arm 17 will be described. The arm drive mechanism C1 for driving the disk support arm 17 is constructed by assembling the mechanism elements shown in FIG. 5, and its operation is performed as the rack main body 32 moves forward and backward. That is, in FIG. 6, a guide pin 32c fixed to the end of the lever arm 37 is attached to the guide groove 32a formed in the rack main body 32, and is guided to the guide groove 32a. The state shown in the figure shows a state in which the operator inserts the disk D from the insertion port 3 a of the bezel 3, and the front end thereof contacts the disk contact portion 18 provided at the tip of the disk support arm 17. At this time, the motor 30 is stopped and the rack main body 32 is stopped at the position moved in the X2 direction. Since the rear end portion 40d of the lock lever 40 is pressed by the activation pin 48, the locking end 40a is separated from the notches 38a and 39c of the first and second link arms 38 and 39, and The link arm 38 is slidable with respect to the second link arm 39. The first link arm 38 slides in the A1 direction with respect to the second link arm 39 by the elastic force of the tension coil spring 44, and the disk support arm 17 connected to the first link arm 38 is X2. It is in a state of swinging in the direction.

  FIGS. 7 and 8 show the state in which the operator further pushed the disk D into the apparatus step by step. When the disk abutting portion 18 is pushed by the disk D, the disk support arm 17 swings backward. The first link arm 38 connected to the base end portion of the disk support arm 17 by the pivot pin 17a is pulled. At this time, since the lever arm 37 is connected to the stationary rack main body 32, the second link arm 39 connected thereto is maintained in a fixed position. Accordingly, the first link arm 38 slides in the A2 direction with respect to the second link arm 39, and the assembly of the first and second link arms 38 and 39 is extended. When the state shown in FIG. 7 is reached, the limit switch 47 is actuated by the disk support arm 17.

  FIG. 8 shows a state in which the motor 30 of the loading mechanism C starts operating based on the signal from the limit switch 47 operated as described above, and the rack main body 32 is moving backward in the X1 direction. The lever arm 37 is swung by the guide groove 32a of the rack main body 32, and the second link arm 39 slides forward in the A2 direction so as to follow the first link arm 38. The assembly of the link arms 38 and 39 is in a contracted state. Then, the lock lever 40 released from the pressing by the activation pin 48 is rotated in the clockwise direction by the spring force of the torsion coil spring 45, and the locking end 40a thereof is the cutout portion of the first and second link arms 38 and 39. It penetrates into 38a and 39c. As a result, the first and second link arms 38 and 39 are locked together. In the process from FIG. 7 to FIG. 8, an arm drive mechanism C2 described later operates to start the attracting arm 21, and the contact portion 18 of the disc support arm 17 and the disc support portion 21a of the attracting arm 21 To hold the disk D.

  FIG. 9 shows a state in which the rack main body 32 further retreats in the X1 direction, the disk support arm 17 swings rearward, and the center hole Da of the disk D coincides with the clamp head 7. Until this time, the disk D is held by the disk contact portion 18 of the disk support arm 17 and the disk support portion 21a of the attracting arm 21, and the disk support arm 17 and the attracting arm 21 swing in synchronization. To do. Then, in the process from FIG. 9 to FIG. 10, a frame member driving mechanism C3 described later operates to raise the clamp head 7 and clamp the center hole Da of the disk D.

  FIG. 11 shows a state in which the rack main body 32 is slightly retracted in the X1 direction after the clamp head 7 clamps the center hole Da of the disk D. The lever arm 37 is formed at the end of the guide groove 32a of the rack main body 32. Is slightly swung, and the disc support arm 17 is slightly swung as shown in FIG. At this time, the attracting arm 21 also swings away from the disk D, so that the disk D can be driven by the turntable 7.

  The above is the operation mode of the arm drive mechanism C1 and the disk support arm 17 at the time of loading the disk D. When the disk D is unloaded, the mechanism elements of each part perform the reverse operation along the reverse path. That is, the motor 30 of the loading mechanism C is driven reversely, and the disk main body 32 moves forward in the X2 direction, whereby the disk support arm 17 swings forward from the state of FIG. 11 to the state of FIG. The rear end portion 40d of the lock lever 40 comes into contact with the activation pin 48. Then, when the rack main body 32 further advances, the rear end portion 40d is pressed by the activation pin 48, whereby the lock lever 40 swings as shown by the broken line in FIG. 12, and the locking end 40a becomes the first link. The arm 38 and the second link arm 39 are disengaged from the cutout portions 38a and 39c, and the locked state in which the first link arm 38 and the second link arm 39 are integrated is released. At the same time, the urging force of the tension coil spring 44 acts to swing the disk support arm 17 to the position shown in FIG. 6, and the disk D is popped out from the insertion port 3a in the final moment of the unloading process to complete the unloading. .

  Thus, at the start of the disk loading operation, the first and second link arms 38 and 39 are unlocked by the lock arm 40, and the first and second links are inserted as the disk D is inserted. The assembly of the arms 38 and 39 is once displaced in the extending direction, then displaced in the contracting direction, and reaches the state shown in FIG. On the other hand, at the start of the disk D unloading operation, the first and second link arms 38 and 39 are integrated by being locked by the lock lever 40. Therefore, the first and second link arms 38 and 39 are integrated. Since it extends as in loading, it does not move in the direction of contraction, and the state shown in FIG. 12 is reached and the lock by the lock lever 40 is released. As described above, when the disk D is unloaded, the urging force of the tension coil spring 44 is not used in almost all unloading processes, and the drive control is performed by the loading mechanism C. Therefore, the unloading operation is always constant, and the disk is unloaded at the end of unloading. The state where D is exposed from the insertion port 3a of the bezel 3 and is stationary is always constant.

  Next, the configuration and operation mode of the arm drive mechanism C2 will be described. The arm drive mechanism C2 includes a guide groove 32b formed on the upper surface of the rack main body 32, a guide slit 6b formed in the base panel 6 at a position overlapping with the guide groove 32b, and one end at an intermediate portion of the attracting arm 21. The lever arm 50 is rotatably supported and includes a driven pin 52 which is fixed to the other end of the lever arm 50 and fits into both the guide groove 32b and the guide slit 6b. When the loading mechanism C starts operating and the rack main body 32 moves in the X1-X2 direction, the lever arm 50 is displaced and attracted by the movement of the driven pin 52 guided by the guide groove 32b and the guide slit 6b. The arm 21 is swung.

  Next, the configuration and operation mode of the frame member drive mechanism C3 will be described. The frame member drive mechanism C3 includes a guide groove 32c formed on the upper surface of the rack main body 32, a cam groove (not shown) formed on the side surface of the rack main body 32, and a slide having a cam groove (not shown) on the side surface. The member 54, the driven pins 56 and 57 fixed to the frame member 8 and guided by the cam grooves formed on the side surfaces of the rack main body 32 and the slide member 54, and the V-shaped corners are rotatable. The link member 59 is supported by the base panel 6 and has one end fitted into the guide groove 32 c and the other end connected to the slide member 54. When the loading mechanism C starts operating and the rack main body 32 moves in the X1-X2 direction, the link member 59 is driven and rotated by the guide groove 32c to slide the slide member 54. At this time, the cam groove of the rack main body 32 and the slide member 54 guides the driven pins 56 and 57 so that the frame member 8 is raised or lowered.

  Next, an operation mode when loading a disk D having a diameter of 12 cm onto the disk device 1 will be described. FIG. 2 shows the disk device in an insertion standby state waiting for the insertion of the disk D, and FIG. 6 shows the state of the disk support arm 17 and the arm drive mechanism C2 at this time. At this time, since the first link arm 38 is slidable with respect to the second link arm 39, the disk support arm 17 can swing irrespective of the operation of the rack main body 32. It is urged clockwise in the figure by the urging force of the tension coil spring 44, abuts against the X2 direction side end portion 6c of the slit 6a and stands by at the standby position. The attracting arm 21 stands by at a position rotated counterclockwise in the figure, and the frame member 8 stands by at a lowered position. In this state, when the operator inserts the disk D from the insertion port 3a, the front end of the disk D in the insertion direction comes into contact with the disk contact portion 18 of the disk support arm 17.

  When the operator pushes the disk D further into the apparatus, the disk abutment portion 18 is pressed against the disk D, so that the disk support arm 17 swings in the disk insertion direction, and auto loading shown in FIGS. 7 and 13 is started. Reach position. When this state is reached, the limit switch 47 is actuated by the disc support arm 17.

  When the limit switch 47 is activated, the motor 30 is driven and the loading mechanism C starts operating. Then, the rack main body 32 moves in the X1 direction, the arm drive mechanism C1 operates, and the first link arm 38 and the second link arm 39 are integrated by the action of the lock lever 40, and the arm drive mechanism C2 , The attracting arm 21 swings in the clockwise direction, and the disc D is moved by the disc abutting portion 18 provided at the tip of the disc supporting arm 17 and the disc supporting portion 21a provided at the tip of the attracting arm 21. Chuck. When the arm driving mechanisms C1 and C2 are further operated, the disk support arm 17 and the attracting arm 21 are swung, and the disk D is moved in the loading direction until the center hole Da of the disk D coincides with the clamp head 7. Transport. Up to this point, the disk support arm 17 and the attracting arm 21 swing in synchronization, and the disk abutting portion 18 and the disk support portion 21a keep the disk D chucked.

  Thereafter, when the rack main body 32 further moves in the X1 direction, the frame member drive mechanism C3 operates to raise the frame member 8. Then, the chuck claw 7a of the clamp head 7 disposed on the frame member 8 gets over the edge of the center hole Da of the disk D while pressing the opening end at the center of the disk D against the convex part 2b of the chassis case 2. The disk D is locked on the turntable 10. Thereby, the disk D is integrated with the turntable 10.

  Thereafter, the rack main body slightly moves in the X1 direction and the arm driving mechanisms C1 and C2 operate, so that the disk support arm 17 and the attracting arm 21 slightly swing as shown in FIGS. Then, the chucking of the disk D by the disk contact part 18 and the disk support part 21a is released. At the same time, the frame member drive mechanism C3 is operated to lower the frame member 8 so that the disk D is separated from the top plate of the chassis case 2. As a result, the disk D can be rotationally driven, and the clamping operation ends.

  The above is the operation mode of the disk device 1 when the disk D having a diameter of 12 cm is carried in. When the disk D is ejected, the reverse path is followed, and the mechanical elements of each part perform the reverse operation. That is, when the rack main body 32 moves in the X2 direction, the frame member drive mechanism C3 lowers the frame member 8 to release the clamp of the disk D by the clamp head 7, and the arm drive mechanisms C1 and C2 move to the disk support arm. 17. The attracting arm 21 is swung and the disk D is chucked by the disk contact part 18 and the disk support part 21a. Further, when the rack main body 32 further moves in the X2 direction, the arm driving mechanisms C1 and C2 swing the disk support arm 17 and the attracting arm 21 to the positions shown in FIG. 2, and about half of the disk D is inserted into the insertion slot 3a. Eject from and complete the export.

  Next, with reference to FIGS. 14 to 16, the operation when a disk Ds having a diameter of 8 cm is inserted from the insertion port 3a will be described. In the present invention, when a disk Ds having a diameter of 8 cm is inserted while waiting for the insertion of the disk D, the entire disk Ds is inserted no matter where the disk Ds is inserted in any of the insertion ports 3a. Before being inserted into the apparatus 1 from the opening 3a, the disk support arm 17 is disposed so that the disk contact portion 18 contacts the disk Ds so as to prevent the disk Ds from being accommodated inside the apparatus 1. I have to. Specifically, when the disc Ds is moved to the left side with the disc abutting portion 18 removed and slidably contacted with the guide member 27, the disc Ds is inserted until the rear end in the insertion direction coincides with the insertion port 3a. The moving path of the disk Ds (the area indicated by hatching to the right in FIG. 14) is the first area, and the 8 cm disk Ds is moved to the right side and slidably contacted with the guide member 29 with the disk contact portion 18 removed. When the disc Ds is inserted until the rear end in the insertion direction of the disc Ds coincides with the insertion slot 3a (the region indicated by the right-upward hatching in FIG. 14) is the second region. The disk contact portion 18 is made to stand by within the range where the first area and the second area overlap (in the area where the right-down hatching and the right-up hatching overlap in FIG. 14). Thus, no matter where the disc Ds is inserted from the insertion port 3a, the disc abutting portion 18 is moved to the disc Ds before the entire disc Ds is inserted into the device 1 from the insertion port 3a. To abut.

  In the present embodiment, the disc contact portion 18 provided on the disc support arm 17 is separated from the guide member 27 by a distance dC in a state of waiting for the insertion of the disc D (position indicated by a broken line in FIG. 15). Is about 4.1 cm, the distance dD from the guide member 29 is about 7.8 cm, and the distance dE from the insertion port 3a is 5.1 cm. (In the present invention, these separation distances dC, dD, and dE are required to be set smaller than the diameter dB of the small-diameter disk Ds.)

  FIG. 15 shows a state where the operator inserts the disk Ds having a diameter of 8 cm into the apparatus 1 while bringing the disk Ds to the left side of the insertion port 3a and sliding the disk Ds on the guide member 27. As shown by a broken line in FIG. 15, the front end of the disc Ds in the insertion direction abuts on a disc abutting portion 18 provided at the tip of the disc support arm 17 during the insertion of the disc Ds. When the operator further pushes in the disc Ds, the disc abutting portion 18 is pushed by the disc Ds, so that the disc support arm 17 swings backward in the apparatus. However, even when the rear end of the disc Ds in the insertion direction is pushed all the way until it coincides with the disc insertion slot 3a, the disc support arm 17 can only swing to the position shown by the solid line in FIG. In FIG. 15, the loading mechanism C does not start operation. Thereafter, when the operator releases his / her hand from the disk Ds, the disk support arm 17 swings forward by the spring force of the tension coil spring 44 and returns to the insertion standby position (indicated by a broken line in FIG. 15). Accordingly, the disk Ds is pushed back in the ejecting direction by the disk support arm 17, and it is reliably prevented that the disk Ds cannot be taken out.

  In the disk device 1 of the present embodiment, the distance dF between the disk contact portion 18 and the insertion port 3a when the disk support arm 17 is positioned at the autoloading start position is set to the disk Ds (second disk-shaped recording medium). ), The loading mechanism C can be reliably prevented from starting its operation when the disk Ds is inserted.

  FIG. 16 shows a state in which the operator inserts the disk Ds having a diameter of 8 cm into the apparatus 1 while bringing the disk Ds to the right side of the insertion port 3a and making sliding contact with the guide member 29. During the insertion of the disk Ds, the front end of the disk Ds in the insertion direction comes into contact with the disk contact portion 18 at the tip of the disk support arm 17. When the operator tries to push the disk Ds further, the disk abutting portion 18 is pushed by the disk Ds, whereby a force in the direction of arrow P is applied to the disk support arm 17. If the disc support arm 17 rotates in the P direction and the distance between the disc contact portion 18 and the guide member 29 becomes larger than the diameter dB of the disc Ds, the disc Ds is completely contained in the apparatus 1. I can't get in and out. However, according to the disk device 1 of the present embodiment, the disk support arm 17 is in contact with the end 6c of the slit 6a formed in the base panel 6 in the state shown in FIG. Since the swinging is prohibited, the distance between the disc contact portion 18 and the guide member 29 does not become larger than the diameter dB of the disc Ds. Accordingly, the disk Ds cannot move in the X1 direction from the state shown in FIG. 16 and stops in a state where the rear end portion has jumped out of the apparatus, so that it is reliably prevented that the disk Ds cannot be taken out. The

  In the disk device 1 of the present embodiment, even when the operator inserts the disk Ds into the disk device 1 from the intermediate position of the insertion port 3a, the front end of the disk Ds in the insertion direction is the tip of the disk support arm 17. It contacts the provided disk contact portion 18. When a force in the direction of arrow P is applied to the disk support arm 17, the state shown in FIG. 16 is reached to prevent further insertion of the disk Ds. Further, when a counterclockwise force is applied to the disk support arm 17, the disk support arm 17 once swung in the counterclockwise direction is subjected to the spring force of the tension coil spring 44 in substantially the same manner as shown in FIG. The disk Ds is pushed back in the ejection direction by returning to the insertion standby position. This reliably prevents the disk Ds from being taken out.

  In FIG. 16, a region indicated by hatching in the horizontal direction is a moving path of the disk contact portion 18 when the disk support arm 17 swings. According to the disk device 1 of the present embodiment, when the disk device 1 is viewed from above, the movement path of the disk contact portion 18 does not overlap with the arrangement position of the clamp head 7 protruding upward from the turntable 10. With this configuration, the disk device 1 can be thinned while suppressing the amount of lowering of the clamp head 7.

  While the embodiments of the present invention have been described above, the present invention is not limited to the embodiments shown in the drawings, and various modifications can be made based on the technical idea of the present invention. For example, the position of the disk contact portion 18 in the state waiting for the insertion of the disk D is not limited to the position of the above-described embodiment, and the entire disk Ds is in contact with the front end in the insertion direction of the small diameter disk Ds. The position may be appropriately changed as long as it is a position that prevents the apparatus from being accommodated inside the apparatus.

1 is a perspective view showing an external appearance of a disk device according to an embodiment of the present invention. FIG. 2 is a plan view showing an internal structure of the disk device of FIG. 1. It is a perspective view which shows the internal structure of the disc apparatus of FIG. It is a top view which shows the mechanism element distribute | arranged inside the disk apparatus of FIG. It is a disassembled perspective view which shows the structure of a disk support arm. It is a figure which shows the 1st process of operation | movement of a disk support arm. It is a figure which shows the 2nd process of operation | movement of a disk support arm. It is a figure which shows the 3rd process of operation | movement of a disk support arm. It is a figure which shows the 4th process of operation | movement of a disk support arm. It is a figure which shows the 5th process of operation | movement of a disk support arm. It is a figure which shows the 6th process of operation | movement of a disk support arm. It is a figure explaining the operation state at the time of discharge of a disk support arm. It is a figure explaining the auto loading start state. It is a figure for demonstrating the function structure of the disc contact part of this invention. It is a figure for demonstrating the action state of the disc contact part of this invention. It is a figure for demonstrating the action state of the disc contact part of this invention. It is a figure for demonstrating the structure of the conventional disk apparatus. It is a figure for demonstrating the structure of the conventional disk apparatus.

Explanation of symbols

1 .... Disk device 2 .... Chassis case 3 .... Bezel 6 .... Base panel 7 .... Clamp head 8 ....・ Frame member 9 ・ ・ ・ ・ Buffer support structure 10 ・ ・ ・ Turntable 11 ・ ・ ・ ・ ・ Spindle motor 12 ・ ・ ・ Optical pickup 16 ・ ・ ・ ・ ・ Thread motor 17 ・ ・ ・ ・-Disc support arm 18-Disc contact portion 21-Attraction arm 27-29-Guide member 30-Motor 32-Rack main A-・ Recording / reproducing part B ・ ・ ・ ・ ・ ・ Head unit C ・ ・ ・ ・ ・ ・ Loading mechanism C1 ・ C2 ・ ・ Arm drive mechanism C3 ・ ・ ・ ・ ・ Frame member drive mechanism D ・ ・ ・ ・ ・ ・ Diameter 12cm Disc Ds: Diameter 8m Disk

Claims (3)

An insertion slot into which a disc-shaped recording medium is inserted;
A first guide portion for guiding one side of the disc-shaped recording medium inserted from the insertion port;
A second guide portion for guiding the other side of the disc-shaped recording medium inserted from the insertion port;
A disk support arm that includes a disk contact portion that contacts the disk-shaped recording medium inserted from the insertion port, and that supports and swings the disk-shaped recording medium;
A recording / reproducing unit for recording and / or reproducing information with respect to a disk-shaped recording medium conveyed into the apparatus by the disk support arm;
The first disk-shaped recording medium whose diameter is standardized to a dimension dA and the diameter dB which is smaller than the dimension dA (dB <dA) are standardized by swinging the disk support arm. Of the two types of disc-shaped recording media different from the second disc-shaped recording media, the disc device is configured to load / unload the first disc-shaped recording medium,
Even when the second disc-shaped recording medium is inserted from any position of the insertion port in a state of waiting for the disc-shaped recording medium to be inserted from the insertion port, The disk support arm is disposed so that the disk contact portion contacts the second disk-shaped recording medium before the entire disk-shaped recording medium is inserted into the apparatus from the insertion port. A disk unit. With the disc contact portion removed, the rear end of the second disc-shaped recording medium is aligned with the insertion slot while the second disc-shaped recording medium is in sliding contact with the first guide portion. The area through which the second disc-shaped recording medium passes when it is inserted is defined as the first area,
With the disc contact portion removed, the rear end of the second disc-shaped recording medium is aligned with the insertion slot while the second disc-shaped recording medium is in sliding contact with the second guide portion. When the area through which the second disc-shaped recording medium passes when it is inserted is defined as the second area,
In a state of waiting for the disc-shaped recording medium to be inserted from the insertion slot, the disc contact portion is positioned so that the first region and the second region overlap each other. 2. The disk device according to claim 1, further comprising a disk support arm.   3. The disk device according to claim 1, wherein the first disk-shaped recording medium has a diameter dimension dA of 12 cm, and the second disk-shaped recording medium has a diameter dimension dB of 8 cm.

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