JP2007172692A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk device capable of obtaining a high dust prevention effect and preventing an erroneous operation and destruction caused by an intentional operation from the outside by a simple structure. <P>SOLUTION: This device includes a conveying member for inserting or ejecting a disk or a cartridge housing the disk, a device main body having an opening when the conveying member is inserted or ejected, a front door for closing the opening in a state where the conveying member is inserted into the device main body, a pressing spring for pressing the front door in a direction of closing the opening, a sliding member engaged with the conveying member to be supported on the device main body so as to slide, and a locking member engaged with the sliding member to be supported on the device main body so as to rotate around a rotary axis. In a state where the conveying member is inserted into the device main body, and the opening is closed by the front door, the locking member rotated associatively with the moving operation of the sliding member to press the front door in a closing direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disk device that records data on a disk-shaped data storage medium such as an optical disk and / or reproduces data from the data storage medium.

  In recent years, disk-like data recording media (hereinafter simply referred to as “disks”) that can be carried and replaced only, such as optical disks and magnetic disks, have become widespread, and there are various types of media depending on the application. ing. For example, as a disk for recording and reproducing data using a laser beam, a read-only reproduction type disk (CD-ROM, DVD-ROM, etc.), a recordable type disk (CD-R, DVD-) that can be recorded only once. R) and the like, and there are a plurality of rewritable discs (PD, DVD-RAM, etc.) that can be repeatedly recorded. The rewritable disc may be stored in a cartridge in order to protect the disc from scratches and dust.

  In such a disk device for recording or reproducing a disk, a mechanism using a tray is generally employed for loading and unloading the disk. According to this mechanism, the disc is loaded and ejected by placing the disc on the tray and inserting the tray into the disc device or ejecting the disc from the disc device. This operation by the tray is easy for the user to understand, and this mechanism can be realized with a relatively simple structure. For this reason, a structure using a tray is employed in many disk devices.

  An example of a conventional disk device using a tray is shown in FIG. 10A is a perspective view showing a state in which the tray 210 is discharged, and FIG. 10B is a perspective view showing a state in which the tray 210 is inserted.

  As shown in FIG. 10A, in the conventional disk apparatus 200, an opening 215 is formed on the front surface of the apparatus main body 210, and the tray 220 is inserted into and out of the apparatus main body 210 from the opening 215 (in the directions of arrows 220A and 220B). It is attached to and out freely. The tray 220 is provided with a substantially circular recess 225. By placing the disk 10 in the recess 225 and giving a drive command to the tray 220 in the direction of the arrow 220A, a tray drive mechanism (not shown) As shown in FIG. 10B, the tray 220 is pulled into the apparatus main body 210. A lid 230 is formed on the front surface of the tray 220. When the tray 220 is pulled into the apparatus main body 210, the opening 215 is shielded by the lid 230 as shown in FIG. It has become. Since the tray 220 is mechanically locked after the tray 220 is inserted, it is impossible to pull out the tray 220 manually, and a finger or a foreign object is prevented from being inserted into the apparatus from the outside. In addition, in order to prevent dust from entering the inside of the apparatus main body 210, a dustproof pad 235 made of an elastic member is attached to the back surface of the lid portion 230, and when the tray 220 is inserted, it closely contacts the periphery of the opening 215. Thus, a disk device that keeps the device main body 210 airtight has been proposed (for example, Patent Document 1).

  The disk device 200 described above is a tray that supports only a single disk. However, Patent Document 2 discloses a disk device that uses a cartridge and a tray that supports a single disk. An example of the disk device 300 is shown in FIG. 11A is a perspective view showing a state in which the tray 320 is discharged, and FIG. 11B is a perspective view showing a state in which the tray 320 is inserted.

  As shown in FIG. 11A, in the disk device 300 corresponding to the cartridge and the single disk, when the lid portion 230 is formed on the front surface of the tray like the tray 220 shown in FIG. 10, the cartridge 15 is placed and taken out. When performing, the location where the cartridge 15 is held is limited to the side surface portion of the cartridge 15 and inconvenience occurs. Therefore, the front door 330 that rotates in the direction of the arrow 330A or 330B without forming the lid portion 230 on the front surface of the tray The opening 315 is closed. The tray 320 is provided with a substantially circular concave portion 325 for placing the disk 10 and guide walls 326a and 326b having a guide function when placing the cartridge 15 in order to improve cartridge placement. In addition, no lid is formed on the front surface of the tray 320.

  By placing the disk 10 or the cartridge 15 on the tray 320 and giving a drive command to the tray 320 in the direction of the arrow 320A, the tray 320 is moved by the tray drive mechanism (not shown) as shown in FIG. The front door 330 is pulled into the apparatus main body 310 and is rotated in the direction of the arrow 330A by the spring force of an urging spring (not shown) to shield the opening 315. By simply blocking the opening 315 with the door 330 by the biasing spring, it is not possible to prevent the insertion of a finger or a foreign object from the outside into the inside of the apparatus. Is provided.

As shown in FIG. 12A, when the tray 320 is being ejected, the front door 330 is pushed down in the direction of the arrow 330B by the tray 320 against the biasing force of a biasing spring (not shown). Yes. When the tray 320 is driven in the direction of the arrow 320A and the tray 320 is inserted into the apparatus 310 as shown in FIG. 12B, the front door 330 is moved in the direction of the arrow 330A by a biasing spring (not shown). Rotate to close the opening 315. At this time, in synchronization with the completion of the insertion operation of the tray 320, the lock pin 340 protrudes in the rotational axis direction of the front door 330 and engages with the engaging portion 331 of the front door 330. With this lock pin 340, the rotation of the front door 330 in the direction of the arrow 330B is restricted and locked.
JP 2000-11510 A JP 2003-242705 A

  However, in the disk device 300 corresponding to such a cartridge 15, when a dustproof pad is formed on the rear surface of the front door 330 in order to improve dustproofness, the front door 330 is rotated only by a spring force, and thus the dustproof pad. There is a possibility that the door 330 does not completely rotate and the lock pin 340 does not engage with the engaging portion 331 of the front door 330 due to variations in the thickness and the pasting work.

  Further, when the front door 330 is forcibly opened from the outside, the lock pin 340 completely restricts the rotation of the front door 330 in the opening direction (the direction of the arrow 330B), which may cause component destruction. .

  Further, when the tray 320 is inserted while the front door 330 is intentionally opened from the outside, the lock pin 340 engages with the engaging portion 331 of the front door 330 even though the insertion operation is completed. In some cases, the operation of inserting the tray 320 is completed and the front door 330 cannot be locked.

  In view of the above problems, an object of the present invention is to provide a disk device that can obtain a high dustproof effect with a simple configuration and can prevent malfunction, destruction, and the like due to intentional operation from the outside.

  The disc device of the present invention includes a transport member that inserts or ejects a disc or a cartridge containing the disc, an apparatus main body having an opening when the transport member is inserted or ejected, and the transport member is attached to the device main body. In the inserted state, the front door that closes the opening, the urging spring that urges the front door in the direction to close the opening, and the transfer member are engaged and can slide on the apparatus main body. A slide member that is supported by the slide member, and a lock member that engages with the slide member and is supported by the device main body so as to be rotatable about a rotation shaft, and the conveying member is inserted into the device main body. When the opening is closed by the front door, the lock member rotates in conjunction with the movement of the slide member to close the front door. To press to that direction.

  In a preferred embodiment, the apparatus main body has a head for recording / reproducing a signal on a disk and a traverse base on which the head is mounted, and the slide member engages with the traverse base and slides. As a result, the traverse base is moved up and down.

  In a preferred embodiment, the front door further includes a dustproof pad, and the dustproof pad is elastically deformed between the front door and the apparatus main body in a state where the opening is closed by the front door. .

  In a preferred embodiment, the lock member includes a first engagement portion that engages with the slide member, and a second engagement portion that presses the front door, and the rotation of the lock member The relationship between the distance L1 from the shaft to the first engaging portion and the distance L2 from the rotating shaft to the second engaging portion is L1> L2.

  In a preferred embodiment, the lock member has an operation part capable of rotating the lock member from the outside of the apparatus main body, and the slide member is operated by operating the operation part. The transport member is moved in the direction of discharging from the apparatus main body.

  In a preferred embodiment, a relationship between a distance L3 from the rotation shaft to the operation portion of the lock member and a distance L2 from the rotation shaft to the second engagement portion is L3> L2. Become.

  In a preferred embodiment, when the front door is forcibly opened, the lock member rotates about the rotation shaft by contact with the engagement portion of the front door, The slide member is moved.

  In a preferred embodiment, the apparatus main body includes a detection unit that detects that the transport member is inserted and the traverse base is raised, and the head performs recording / reproduction of the signal of the disk. At this time, the lock member is rotated by an external operation to detect a change in the state of the detection unit and stop the disk motor or the recording / reproducing operation of the head.

  According to the disk device of the present invention, the front door is locked by pressing the front door in the direction in which the opening is closed by the lock lever, and the front door constituting the dust-proof pad is pressed against the opening to prevent dust. It is possible to improve the performance.

  Further, even when the front door is forcibly opened from the outside, the lock lever rotates when an excessive force is applied, thereby preventing the mechanical parts from being destroyed.

  Even if the tray insertion operation is performed with the front door intentionally opened from the outside, the tray insertion operation can be performed with the front door open because the lock lever and the engaging portion of the front door abut. Completion can be prevented.

  Embodiments of a disk device of the present invention will be described below with reference to the drawings. First, the structure of the disk device 500 of this embodiment will be described with reference to FIGS.

  FIG. 1 is a perspective view showing the appearance of a disk device 500 of the present invention. FIG. 1 (a) shows a state in which the tray 70 is ejected, and FIG. 1 (b) shows a state in which the tray 70 is inserted. FIG. 2 is an exploded perspective view of the disk device 500 of the present invention.

  As shown in FIG. 1, the disk device 500 has an opening 540 through which the tray 70 is inserted / discharged.

  The opening 540 is configured by a base chassis 50 and a top plate 60 which will be described later. As shown in FIG. 1B, the opening 540 is closed by the front door 110 when the tray 70 is inserted.

  The front door 110 is supported by the base chassis 50 so as to be rotatable in the direction of the arrow 110A or 110B around the rotation shaft 110A. When the tray 70 is ejected as shown in FIG. To open the opening 540 by rotating in the direction of the arrow 110B.

  As shown in FIG. 2, the disk device 500 includes a traverse base 20, a spindle motor 30 that rotationally drives the disk 10 accommodated in the disk cartridge 15, and an optical pickup 40 that performs recording and / or reproduction.

  The spindle motor 30 has a disk mounting surface 30 a for holding the disk 10 and is fixed to the traverse base 20. The optical pickup 40 is supported on the traverse base 20 so as to be movable along the guide shafts 41 and 42. A feed motor 43 is provided on the traverse base 20 and moves the optical pickup 40 along the guide shafts 41 and 42. The moving direction of the optical head is approximately the same as the radial direction of the disk 10.

  The disk device 500 further includes a base chassis 50, a top plate 60, and a tray 70. The base chassis 50 supports the traverse base 20 and guides the tray 70 to be movable in the directions of arrows 70A and 70B. The base chassis 50 is provided with a drive motor 51 for moving the tray 70 in the directions of arrows 70A and 70B, and a gear train 52 for decelerating and transmitting the drive force of the drive motor 51. The drive motor 51 and the gear train 52 are located below the tray 70. As shown in FIG. 3, the rack portion 71 formed on the back surface of the tray 70 and the gear train 52 are engaged with each other. Driven.

  The top plate 60 is provided with a clamper 61 that clamps the disc 10 between the disc mounting surface 30 a of the spindle motor 30 and a clamper support portion 62, and is attached to the base chassis 50.

  The tray 70 is provided with guide walls 71a and 71b having a guide function when the disk cartridge 15 is placed. The tray 70 is provided with fixing pins 72 a and 72 b that engage with the positioning holes 16 a and 16 b of the disk cartridge 15. The disk cartridge 15 is positioned on the tray 70 by the engagement between the fixing pins 72a and 72b and the positioning holes 16a and 16b.

  Further, the tray 70 is provided with a circular recess 70r for directly placing the disk 10 not stored in the disk cartridge 15. An opening 70w for allowing the spindle motor 30 and the optical pickup 40 to approach the disk 10 is provided at the bottom of the recess 70r.

  Further, in order to make it easy to take out the disk cartridge 15 placed on the tray 70, a notch 70s for exposing a part of the side surface of the disk cartridge is provided on the front surface of the tray 70.

  The tray 70 is provided with an opener 73 that engages with the shutter 15a of the disk cartridge 15 and opens and closes so as to be movable in the directions of arrows 80A and 80B. The opener 73 engages with a cam groove (not shown) provided on the back surface of the top plate 60, and opens and closes the shutter 15a according to the insertion / discharge operation of the tray 70.

  The slide cam 80 is supported by the base chassis 50 so as to be movable in the directions of arrows 80A and 80B, and is engaged with the guide pins 21 provided on the traverse base 20 via cam grooves. By moving in the direction, the traverse base 20 is driven up and down.

  Further, the slide cam 80 is provided with a rack gear 80a and is driven in the directions of arrows 80A and 80B by engaging with the gear train 52.

  The engaging portion 81 of the slide cam 80 engages with a cam groove 75 formed on the back surface of the tray 70 shown in FIG. When the engaging portion 81 passes through the corner portion 75 a of the cam groove 75, the rack gear 80 a of the slide cam 80 is engaged with or disengaged from the gear train 52. That is, when the engaging portion 81 of the slide cam 80 passes through the corner portion 75a of the cam groove 75, the driving of the tray 70 and the slide cam 80 is switched. With this switching operation, the single drive motor 51 performs the tray 70 insertion / discharge operation and the traverse 20 lifting / lowering operation.

  The lock lever 90 is pivotally supported by the base chassis 50, and the engaging portion 90 a at the distal end engages with the slide cam 80. Therefore, as shown in FIG. 4, the lock lever 90 is engaged with the slide cam 80 via the engaging portion 90a, and in synchronization with the movement of the slide cam 80 in the arrow 80A direction and the arrow 80B direction, Rotate in the directions of arrows 90A and 90B around 91.

  Further, the lock lever 90 is provided with an abutting portion 92, which abuts on the engaging portion 113 of the front door 110 and restricts the rotation of the front door 110 in the direction of the arrow 110B. Details of the operation will be described later.

  The switch board 100 is provided below the lock lever 90 and attached to the base chassis 50. In the state in which the tray 70 is discharged as shown in FIG. 4A, the switch 101a is pushed by the slide cam 80 to detect completion of the tray discharge, and as shown in FIG. In the inserted state, the switch 101b is pushed by the lock lever 90 to detect the completion of the loading operation (the tray 70 is inserted and the traverse 20 is lifted).

  The front door 110 is rotatably attached to the base chassis 50 in the directions of arrows 110A and 110B around the rotation shaft 110a, and is urged by the urging spring 111 in the direction of arrow 110A.

  The front door 110 is provided with a dustproof pad 112 in order to improve the dustproofness of the disk device 500 when the opening 540 is closed. For example, the dustproof pad 112 is made of sponge, rubber, or the like, and works to increase the sealing degree by elastically deforming when it contacts the opening 540.

  The base chassis 50 is supported by the frame 510 via a damper made of an elastic member such as rubber for buffering an impact on the apparatus. An upper housing 520 and a lower housing 530 that form the outer shell of the disk device 500 are attached to the frame 510, and the outer shell of the disk device 500 is configured.

  Next, the locking operation of the front door 110 in the disk device 500 configured as described above will be described with reference to FIGS.

  5 to 7 show the operation state of the lock lever 90 and the front door 110 at the position of the tray 70, FIG. 5 shows a state in which the tray 70 is completely ejected, and FIG. FIG. 7 shows a state where the tray 70 is completely inserted and loading is completed. In each figure, (a) shows a plan view and (b) shows a side view. 8A and 8B are operation diagrams for explaining the positional relationship between the engaging portion 90a, the abutting portion 92, and the operation portion 93 of the lock lever 90. FIG. 8A is a state at the time of FIG. 7, and FIG. The state at the time of FIG. 6 is shown, respectively.

  As shown in FIG. 5, when the tray 70 is in the ejected state, the slide cam 80 is positioned on the left side of the disk device 500 due to the cam groove 75 of the tray 70. At this time, the lock lever 90 is rotated in the direction of the arrow 90B by the slide cam 80, and the contact portion 92 of the lock lever 90 and the engagement portion 113 of the front door 110 are not in contact. That is, the front door 110 is rotatable in the directions of the arrows 110A and 110B. Therefore, when the tray 70 is being discharged, the front door 110 is pushed down in the direction of the arrow 110B by the tray 70, and the opening 540 is opened.

  At this time, the detection switch 101a is pushed by the slide cam 80 to detect completion of the ejection of the tray 70.

  When the tray 70 is inserted in the direction of the arrow 70A by the drive motor 51 from the state of FIG. 5, the front door 110 is in contact with the tray 70 by the spring force of the urging spring 111 as shown in FIG. , Rotate in the direction of arrow 110A. The slide cam 80 starts to move in the direction of the arrow 80A by the corner portion 75a of the cam groove 75 of the tray 70, and the lock lever 90 engaged therewith also starts to rotate in the direction of the arrow 90A. At this time, since the front door 110 is rotated in the direction of the arrow 110 </ b> A, the lock lever 90 is rotated without contacting the engaging portion 113 of the front door 110.

  When the tray 70 is further inserted in the direction of the arrow 70A from the state of FIG. 6, the drive of the tray 70 and the slide cam 80 is switched, and the slide cam 80 moves in the direction of the arrow 80A as shown in FIG. Is inserted, the traverse base 20 is raised, and the loading operation is completed.

  At this time, the completion of the loading operation is detected by the detection switch 101b being pushed by the lock lever 90 that rotates as the slide cam 80 moves.

  The front door 110 is rotated in the direction of the arrow 110 </ b> A by the spring force of the biasing spring 111 and closes the opening 540. At this time, as the slide cam 80 moves in the direction of the arrow 80A, the lock lever 90 rotates in the direction of the arrow 90A, so that the contact portion 92 of the lock lever 90 moves the engagement portion 113 of the front door 110 in the direction of the arrow 70B. Press on. Since the rotation shaft 110a is provided between the front door 110 and the engagement portion 113, when the engagement portion 113 is pressed in the arrow 70B direction by the lock lever 90, the front door 110 moves the rotation shaft 110a. It rotates to the center and is pressed in the direction of arrow 110A. By this pressing operation, the front door 110 is restricted from rotating in the direction of the arrow 110B, and the front door 110 is locked.

  However, since the slide cam 80 is transmitted to the drive motor 51 via the reduction gear train 52, a certain amount of force is required to move in the direction of the arrow 80B due to the load of the drive motor 51 and the reduction gear train 52. However, the movement is not mechanically locked. Therefore, when the front door 110 is forcibly rotated in the direction of arrow 110B, the lock lever 90 is rotated in the direction of arrow 90B via the engaging portion 113, and the slide cam 80 is moved in the direction of arrow 80B. be able to.

  Therefore, in the disc device of the present invention, as shown in FIG. 8, the distance L1 between the engaging portion 90a engaged with the slide cam 80 and the rotating shaft 91 and the engaging portion 113 of the front door 110 are in contact with each other. By making the relationship of the distance L2 between the contact portion 92 and the rotating shaft 91 such that L1> L2, the locking force of the front door 110 is generated using the radius ratio of L1 / L2. That is, if the force acting on the engaging portion 90a is F in order to move the slide cam 80 in the arrow 80B direction, the force P for rotating the lock lever 90 in the arrow 90B direction via the contact portion 92 is P = (L1 / L2) × F, and the force for moving the slide cam 80 in the direction of the arrow 80B is enlarged to L1 / L2 times. Therefore, by providing the contact portion 92 at a position where L1> L2 is established, a larger force is required to rotate the lock lever 90 than to move the slide cam 80, and the arrow 110B direction of the front door 110 It is possible to obtain a certain degree of locking force that restricts the rotation to the position.

  Conversely, when the front door 110 is forcibly opened from the outside in the direction of the arrow 110B, if a force greater than the locking force described above is applied to the contact portion 92, the engagement portion 113 of the front door 110 is Since the lock lever 90 rotates in the direction of the arrow 90B, an excessive force applied from the outside, in other words, a force greater than the lock force can be released. Therefore, if the front door 110 and other mechanical parts have a strength that can withstand the locking force, it is possible to prevent parts from being damaged when the front door 110 is forcibly opened from the outside.

  At this time, the lock lever 90 rotates to change the state of the detection switch 101b, so that an abnormal operation from the outside can be detected. By this detection, for example, the operation of stopping the rotation of the spindle motor 30 and stopping the laser emission of the optical pickup 40 can be performed.

  Further, when the opening 540 is closed only by the spring force of the urging spring 111, the opening 540 may not be completely closed depending on the balance with the elastic force of the dustproof pad 112 attached to the front door 110. However, in the disk device of the present invention, the front door 110 is pressed in the direction of the arrow 110A by the lock lever 90, so the dust pad 112 affixed to the front door 110 can be pressed against the opening 540. 500 dustproofness can be improved.

  When the tray 70 is discharged, it operates in the reverse order of FIGS. That is, the slide cam 80 starts to move in the direction of the arrow 80B according to the drive command from the state of FIG. 7, and the drive of the tray 70 and the slide cam 80 is switched through the state of FIG. Driven. As the tray 70 moves, the front door 110 is pushed down in the direction of the arrow 110B, the tray 70 moves to the state shown in FIG. 5, the detection switch 101a is pushed by the slide cam 80, and the tray 70 is discharged. Complete.

  Further, in the disk device 500 of the present invention, as shown in FIGS. 6 to 8, the operation lever 93 of the lock lever 90 is pushed in the direction of the arrow 70A by the eject pin 120, thereby forcibly moving the lock lever 90 to the arrow 90B. The tray 70 can be forcibly ejected by rotating the slide cam 80 in the direction of the arrow 80B.

  In the disk device of the present invention, as shown in FIG. 8A, the distance L3 between the operating portion 93 on which the eject pin 120 acts and the rotary shaft 91, and the contact that contacts the engaging portion 113 of the front door 110. By making the relationship of the distance L2 between the portion 92 and the rotation shaft 91 such that L3> L2, the lock lever 90 is rotated in the direction of the arrow 90B with the eject pin 120 using the radius ratio of L3 / L2. The moving force is smaller than the locking force.

  As shown in FIG. 8 (b), the eject pin 120 acts in a straight line in the direction of the arrow 70A, whereas the lock lever 90 rotates about the rotation shaft 91. Is rotated in the direction of arrow 90B, the distance between the operating portion 93 on which the eject pin 120 acts and the rotation shaft 91 is increased to L3 ′, but the radius ratio of L3 ′ / L2 is also increased. The force for rotating the lock lever 90 with the eject pin 120 becomes smaller.

  The function of forcibly ejecting the tray 70 is used to take out the disk 10 left inside when the disk device 500 fails. This function is a function necessary for emergency response, and in the disk device of the present invention, by performing the locking operation of the front door 110 using the lock lever 90 which is a member that performs this forced ejection function, There is no increase in the number of parts, and the lock function and dustproofness of the front door 110 are improved.

  Next, unlike the normal operation, an operation when the tray 70 is inserted with the front door 110 intentionally opened will be described.

  FIG. 9 shows an operation state when the tray 70 is inserted in a state where the front door 110 is forcibly opened, (a) shows a plan view, and (b) shows a side view.

  When the tray 70 is inserted in the direction of the arrow 70A, as described above, the drive of the tray 70 and the slide cam 80 is switched by the corner portion 75a of the cam groove 75 of the tray 70, and the slide cam 80 moves in the direction of the arrow 80A. . When the lock lever 90 rotates in the direction of the arrow 90A due to the movement of the slide cam 80, the front door 110 remains open, so that the contact portion 92 of the lock lever 90 contacts the engagement portion 113 of the front door 110. As a result, the lock lever 90 cannot rotate in the direction of the arrow 90A, and the movement of the slide cam 80 stops. Therefore, since the front door 110 remains open and the tray 70 is not inserted, the loading operation is not completed. For example, the detection switch 101b may not detect the completion of the loading operation even after a certain time has elapsed, so that an abnormality in the insertion operation of the tray 70 may be detected, and the operation of the tray 70 may be stopped or reversed.

  From the above description, according to the disk device of the present invention, the front door 110 is locked by pressing the front door 110 in the direction in which the opening 540 is closed by the lock lever 90, and the dust pad 112 is configured. The front door 110 can be pressed against the opening 540 to improve dust resistance.

  Further, even when the front door 110 is forcibly opened from the outside, when an excessive force, in other words, a force larger than the locking force is applied, the lock lever 90 rotates to prevent the mechanical parts from being destroyed. can do.

  Even when the tray 70 is inserted while the front door 110 is intentionally opened from the outside, the front door 110 is opened by the contact of the engaging portion 113 of the lock lever 90 and the front door 110. The tray 70 can be inserted and the loading operation can be prevented from being completed.

  In this embodiment, the disk cartridge 15 is positioned with respect to the tray 70 by configuring the fixing pins 72a and 72b on the tray 70. However, the disk cartridge 15 is engaged with the position holes 16a and 16b of the disk cartridge 15. The positioning pins to be performed may not be fixed on the tray 70. For example, a positioning pin may be configured on the traverse base 20 and the cartridge may be positioned on the tray 70 as a structure having a hole through which the positioning pin can pass.

  In this embodiment, the detection switch 101b that detects the completion of the loading operation is operated by the lock lever 90 for detection. However, the present invention is not limited to this, and for example, the detection switch 101b is operated by the slide cam 80. It may be detected.

  In this embodiment, the disk cartridge 15 can be placed on the tray 70. However, the present invention is not limited to this, and a tray corresponding to only the disk 10 alone may be used.

  Further, in the present embodiment, the dustproof pad 112 is configured to improve the dustproof property. However, the present invention is not limited to this, and for example, an elastic member is provided to reduce the closing sound of the front door 110. Also good.

  Further, in the present embodiment, the dustproof pad 112 is configured to improve the dustproof property. However, the present invention is not limited to this. For example, if the purpose is to prevent intentional operation from the outside, the dustproof pad is used. 112 may not be configured.

  Further, the height H1 of the outer dimension of the disk device 500 constituted by the upper housing 520 and the lower housing 530 may be 41.3 mm, for example. The width of the outer dimension may be 146 mm, for example. The depth of the outer dimension may be 190 mm, for example.

  The disk device of the present invention is compatible with a disk device corresponding to a cartridge and a single disk, and can obtain a high dustproof effect with a simple configuration. Further, it is suitably used for a disk device that prevents malfunction and destruction due to intentional operation from the outside.

(A) It is a perspective view which shows the external appearance of embodiment of the disc apparatus of this invention, and is a figure which shows the state by which the tray was discharged | emitted. (B) It is a perspective view which shows the external appearance of embodiment of the disc apparatus of this invention, and a tray is inserted. Figure showing the state 1 is an exploded perspective view showing the configuration of an embodiment of a disk device of the present invention. Perspective view from the back side of the tray (A) It is a perspective view which shows the structure of a locking mechanism part, and is a figure which shows the state by which the tray was discharged | emitted. (B) The perspective view which shows the structure of a locking mechanism part, and shows the state in which the tray was inserted. It is an operation | movement diagram which shows one state during operation | movement of a locking mechanism part, (a) is a top view, (b) is a side view. (A) An operation diagram showing one state during operation of the lock mechanism unit, and a plan view (b) an operation diagram showing one state during operation of the lock mechanism unit, and a side view. (A) An operation diagram showing one state during operation of the lock mechanism unit, and a plan view (b) an operation diagram showing one state during operation of the lock mechanism unit, and a side view. Operation diagram for explaining the positional relationship between the engaging part, the abutting part and the operating part of the lock lever (A) Plan view of the operation of the locking mechanism when the tray is inserted with the front door opened. (B) Operation of the locking mechanism when the tray is inserted with the front door opened. Side view with figure (A) An external perspective view showing an example of a conventional disk device, showing a state where the tray is ejected. (B) An external perspective view showing an example of a conventional disk device, showing a state where the tray is inserted. (A) An external perspective view showing another example of a conventional disk device, showing a state in which the tray is discharged. (B) An external perspective view showing another example of the conventional disk device, in which the tray is inserted. Diagram showing the state 10A is a partial cross-sectional view of the conventional disk device shown in FIG. 10 and shows a state in which the tray is discharged. FIG. 10B is a partial cross-sectional view of the conventional disk device shown in FIG. Illustration

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Disc 15 Disc cartridge 20 Traverse base 30 Spindle motor 40 Optical pickup 50 Base chassis 60 Top plate 61 Clamper 70 Tray 80 Slide cam 90 Lock lever 92 Contact part 93 Operation part 100 Switch board 110 Front door 111 Energizing spring 112 Dust-proof pad 113 Engagement unit 500 Disk device 510 Frame 520 Upper case 530 Lower case 540 Opening

Claims (8)

A transport member for inserting or ejecting a disk or a cartridge containing the disk, and an apparatus main body having an opening when the transport member is inserted or ejected;
A front door that closes the opening in a state where the conveying member is inserted into the apparatus main body;
A biasing spring that biases the front door in a direction to close the opening;
A slide member that engages with the transport member and is slidably supported by the apparatus body;
A locking member that engages with the slide member and is supported by the apparatus main body so as to be rotatable about a rotation axis;
In a state where the transport member is inserted into the apparatus main body and the opening is closed by the front door, the lock member rotates in conjunction with the movement of the slide member, and the front door A disk device that is pressed in a closing direction. The apparatus main body has a head for recording / reproducing signals on a disk and a traverse base on which the head is mounted, and the slide member engages with the traverse base and slides to 2. The disk apparatus according to claim 1, wherein the disk apparatus is moved up and down. The front door further includes a dustproof pad, and the dustproof pad is elastically deformed between the front door and the apparatus main body when the opening is closed by the front door. 3. The disk device according to 1 or 2. The lock member includes a first engagement portion that engages with the slide member, and a second engagement portion that presses the front door, and the first engagement from the rotation shaft of the lock member. 4. The relationship between the distance L <b> 1 to the portion and the distance L <b> 2 from the rotation shaft to the second engagement portion is L <b> 1> L <b> 2. Disk unit. The lock member has an operation unit capable of rotating the lock member from the outside of the apparatus main body, and the slide member is operated by operating the operation unit, and the transport member is moved to the apparatus The disk apparatus according to claim 1, wherein the disk apparatus is operated in a direction of discharging from the main body. The relationship between a distance L3 from the rotation axis of the lock member to the operation portion and a distance L2 from the rotation axis to the second engagement portion satisfies L3> L2. Item 6. The disk device according to Item 5. When the front door is forcibly opened, the lock member rotates about the rotation shaft and moves the slide member by contact with the engaging portion of the front door. The disk device according to claim 1, wherein: The apparatus main body includes a detection unit that detects that the transport member is inserted and the traverse base is raised. When the head is recording / reproducing the signal of the disk, the lock member is 3. The disk motor stop or the recording / reproducing operation of the head is stopped by detecting a state change of the detection unit by rotating by an external operation. Disk unit.

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