JP2012014764A - Disk conveying device - Google Patents

Abstract

An object of the present invention is to reliably switch the protruding position and the retracted position of a disk insertion preventing member while reliably preventing the repeated insertion of the disk, and to stably hold the disk.
When a trigger member detects that a disk has been transported to a reproducible position by a disk transport means, a clamp operation is performed so that the disk can be replayed in conjunction with the movement of a slide cam member that starts moving. A disc insertion blocking member 33 having a blocking piece 33a that protrudes into the disc insertion slot 300 when in a clamped state and can be raised and lowered to a retracted position when no disc is inserted; and a slide cam member The switching mechanism 11 has a switching mechanism 11 having means 11d capable of holding the blocking piece 33a in the protruding position and the retracted position with respect to the disk insertion slot in conjunction with the movement of the blocking member 33. The blocking member 33 is in each of the protruding position and the retracted position. It was set as the structure which can contact | abut elastically with the opposite direction.
[Selection] Figure 24

Description

  The present invention relates to a disk transport apparatus, and more particularly, to a disk transport apparatus capable of preventing duplicate insertion of disks in a slot-in system in which a disk is directly inserted and carried while being held by a roller.

  2. Description of the Related Art Conventionally, the following devices are known as a disk transport device capable of preventing such overlapping insertion of disks.

  For example, there has been proposed one having a shutter mechanism for preventing the insertion of the second disk after the disk transport for automatically transporting the disk into the disk device is completed (see Patent Document 1). This document “has a shutter 457 as a supply port closing means for preventing the supply of a disk, and protects the shutter 457 when a load is applied to the shutter 457 by a second disk or the like. Therefore, a shutter support 459 that abuts against the shutter 457 is provided ".

  In addition, a slot-in type disk device has been proposed that avoids malfunction when two disks are successively inserted (see Patent Document 2). According to this document, “When the disk 11 is inserted from the opening 15 provided in the housing 14 of the slot-in type disk device 10, the leading end 11 a is detected by the center detecting means 12. The disk 11 is rotated to carry in the disk 11. When the side end 11b is detected by the side end detection means 13 and the rear end 11c is no longer detected by the center detection means 12, the transport roller 16 is stopped. Then, when the center detection means 12 does not detect the rear end 11c, it is determined as abnormal when the side end detection means 13 finishes detecting the side end 11b, and the loading of the disk 11 by the transport roller 16 is stopped. " The contents are disclosed.

JP 2000-322802 A JP 2001-31850 A

  In the above-described conventional example, in Patent Document 1, in conjunction with the movement operation of the conveyed disc, a swinging shutter mechanism biased by a spring is operated to prevent erroneous insertion of the disc. Therefore, there is a problem that it is necessary to provide a shutter support. Moreover, in the thing of patent document 2, the detection switch of disk insertion and the control means based on the detection were needed. In any case, the structure of the interlocking mechanism, control circuit, etc. for preventing duplicate insertion is necessary.

  On the other hand, even in the same disk device, a disk device that handles images such as DVDs and BDs is different from conventional music data such as CDs. Data must be transferred at a capacity transfer rate. For this reason, the rotational speed of the disk is required to be high-speed drive of 4000 rpm or more, which causes the problem of vibration generation and vibration sound generation associated with this, and countermeasures are demanded.

  Therefore, the present invention solves the above-mentioned problems and reliably prevents the redundant insertion of the disk while being configured to be interlocked with the clamping operation, etc., and switches and holds the raising / lowering position of the protruding position and the retracted position of the disk insertion blocking member. An object of the present invention is to provide a disc transport device that can be reliably performed and can be stably held without generating vibration noise in that state.

  In order to achieve the above object, a disk transport apparatus according to the present invention is a slot-in type disk transport apparatus in which a disk is inserted into an insertion port on the front surface of the apparatus main body, and the disk is loaded. Disc holding means for holding the disc, a trigger member for detecting that the disc has been conveyed to a reproducible position, and a slide that starts moving by the action of the trigger member when the trigger member detects the disc A cam member, a clamp mechanism for making the disc reproducible in conjunction with the movement of the slide cam member, and when the disc is in the clamp state, it protrudes from the disc insertion port and the disc is not inserted A disc insertion blocking member having a blocking piece configured to be movable up and down in a retracted position; And a switching mechanism having means capable of holding the disk insertion blocking member in a protruding position and a retracted position with respect to the disk insertion port in conjunction with movement of the member, and the blocking member includes attitude holding means of the switching mechanism. Thus, the elastic means that can elastically contact the opposite direction to the apparatus main body in each of the protruding position and the retracted position is configured.

  Thus, in the slot-in method in which the disc is directly inserted and carried while being held by a roller, the disc is prevented by detecting that the disc has been transported to a reproducible position in order to prevent duplicate insertion of the disc. Since the disk insertion prevention member is switched up and down in conjunction with the clamping operation of the disk, the insertion of the disk insertion prevention member can be reliably prevented when the disk is loaded. The lift position is held by the switching mechanism, and the state thereof is held elastically, so that a disk transport device that can be held without generating vibration noise even at high speed driving is obtained.

  According to the above configuration, it is possible to reliably switch the protruding position and the retracted position of the disk insertion blocking member while preventing the repeated insertion of the disk, and holding the vibration without generating a vibration sound, It is possible to provide a disk transport device that can be stably performed.

FIG. 1 is an external perspective view showing a disk device main body of a disk conveying device according to a first embodiment and a disk inserted into the disk device main body. Disassembled perspective view showing parts constituting the entire disk device as a unit Top view of the components with the chassis and some components removed, mounted on the mechanical chassis Top view right after inserting the disc with both housings removed Top view in the middle of transporting the disc in the same state Top view of the disc in the same state loaded to a reproducible position Explanatory drawing of the state at the moment when the disc abuts against the detecting portion of the trigger member and rotates to abut the engaging portion of the slide cam Explanatory drawing of the state where the disc has been carried to a reproducible position Top view of the roller arm and link arm (A) Bottom view of the roller base including the roller base and link arm in a closed state, (b) Bottom view of the roller arm in an opened state (A) Perspective view showing an upper guide for guiding the upper side of the disk to be inserted, (b) Perspective view showing a roller base for guiding the lower side of the disk to be inserted (A) Front view before inserting a disk into the disk device, (b) Front view of a state in which the disk is inserted into the device and a disk insertion prevention member protrudes from the insertion port. (A) The right direction perspective view which shows the relationship with the slide cam of the descent state of the turntable, (b) The left direction perspective view Top view showing the relationship between the slide cam and link arm when the turntable is lowered (A) The right direction perspective view which shows the relationship with the slide cam of the raising state of the turntable, (b) The left direction perspective view Top view showing the relationship between the slide cam and link arm when the turntable is raised Bottom view showing the relationship between the slide cam, link arm and clutch plate in the lowered state of the turntable Bottom view showing the relationship between the slide cam, link arm, and clutch plate in the raised state of the turntable Perspective view of the clutch plate (A) Explanatory drawing which shows the relationship with the clutch plate in which the disk insertion prevention member is in the lowered state, (b) Explanatory drawing in which the disk insertion prevention member is in the raised state Explanatory drawing which shows the state which transmits the driving force of the same motor side via a gear train Explanatory drawing which shows the state which switched transmission of the same driving force to the rack side Explanatory drawing which shows the state by which transmission to the rack side of the same driving force was stopped (A) Cross-sectional view of a state where the disk insertion blocking member does not protrude from the disk insertion port, (b) Cross-sectional view of a state where the disk insertion blocking member protrudes from the disk insertion port Partially enlarged top view in a state in which each component excluding the casing and some components is attached to the mechanical chassis.

(Embodiment 1)
Hereinafter, a first embodiment of the disk transport device of the present invention will be described in detail with reference to the drawings. FIG. 1 is an external perspective view showing a disk device main body having a disk conveying device of the present invention and a disk inserted therein, and FIG. 2 is an exploded perspective view showing parts constituting the entire disk device as a unit. Here, FIG. 1 shows an example of horizontal arrangement, and FIG. 2 is an exploded perspective view of horizontal arrangement, but the apparatus itself can be adapted to both vertical and horizontal arrangements. This will be described using expressions such as “left and right”, “up and down”, and “lifting”.

  In FIG. 1, reference numeral 1 denotes a first casing as an upper cover constituting the apparatus main body, and 2 denotes a second casing as the lower cover. Is provided with an opening 1 a serving as a disc insertion opening, and the opening 1 a is closed by a dust-proof cover 3. As shown in FIG. 1, by directly inserting the disc 100 while elastically deforming the dustproof cover 3 in the opening 1a, the disc 100 can be recorded / reproduced by the action of the disc transport device configured therein. It is conveyed to a predetermined position. Here, the illustrated disk 100 is a 12 cm disk which is a large diameter disk, and the disk 200 is an 8 cm disk which is a small diameter disk.

  As shown in FIG. 2, the disk device as a whole is composed of the disk rotation driving / reproducing device and the disk transport device included in the above-described housings 1 and 2, and the related mechanical components. The dust-proof cover 3 is disposed inside the first casing 1 so as to close the opening 1a. The dust-proof cover 3 is provided with an elastic material sheet 3a such as felt, and the disc 100 is inserted almost at the center thereof. A slit 3b is formed for passing through. An upper guide 4 that guides the upper side of the disk 100 (200) to be inserted and a guide portion 5a of the roller base 5 that guides the lower side are provided at positions facing the inside of the apparatus of the dust cover 3. The roller base 5 rotatably holds a pair of roller arms 7a and 7b having rubber rollers 6a to 6d serving as driving force transmission means and a guide for conveying the inserted disc 100 (200) into the apparatus. . The pair of right rubber rollers 6a and 6b are rotatably provided on the roller arm 7a, and the pair of left rubber rollers 6c and 6d are fixed to the roller arm 7b. The driving force of the motor 9 as the driving source is applied to the roller gears 6e and 6f provided integrally with the rotatable rubber rollers 6a and 6b via the gear train 8 including the gears 8a to 8c provided on the roller arm 7a. Communicated. The driving force is transmitted from the gear 10a to the gear 8c via the gear train 10 including the worm gear 9a and the gears 10a to 10e. The transmission is transmitted to the gears 10b and 10c by the rotation of the clutch plate 11. Is switched by disconnecting the mesh. At that time, the driving force of the motor 9 is transmitted only from the gear 10d to the gear 10f, and drives a slide cam 16 described later via a pinion 10g formed integrally with the gear 10f. Such a conveying device is configured to be held by the mechanical chassis 12 so as to be rotatable or slidable as required.

  As shown in FIG. 2, the disk device includes a turntable 13 on which a disk 100 (200) is mounted by integrally forming a spindle motor, and a traverse 15 having an optical pickup 14. The traverse 15 can be moved up and down and is supported in a floating manner so that the inserted disc can be mounted and played back.

  A slide cam 16 is slidably provided on the right side of the mechanical chassis 12 and is slidable on the left side of the mechanical chassis 12 via a link arm 17 rotatably supported on the lower portion of the mechanical chassis 12. The slide cam 18 is connected to the slide cam 18, and the slide cam 16 and the slide cam 18 are configured to slide in opposite directions in synchronization with each other. Reference numeral 19 denotes an intermediate chassis that supports one of the traverses 15. The intermediate chassis 19 is rotatably provided on the mechanical chassis 12 with pins 19 a and 19 b and is engaged with a lift cam (described later) formed on the slide cams 16 and 18. , 19d are provided. With this configuration, by sliding the slide cams 16 and 18, the intermediate chassis 19 is moved up and down by rotating the pins 19c and 19d up and down around the pins 19a and 19b.

  The traverse 15 is fixed to the front of the intermediate chassis 19 via floating rubbers 20a and 20b, respectively, on the left and right sides, and the rear part is fixed to the mechanical chassis 12 via floating rubbers 20c and 20d. With this configuration, the traverse 15 rotates around the floating rubbers 20d and 20c as the intermediate chassis 19 rotates in the vertical direction by sliding the slide cams 16 and 18, and accordingly the turntable 13 is rotated. The part can be moved up and down.

  Reference numeral 21 denotes a clamper that holds the disk, and is provided so as to clamp the disk 100 (200) to the turntable 13 at an upper portion facing the turntable 13. The turntable 13 is provided with a magnet, and the clamper 21 is pulled by the turntable 13 by a magnetic force by an iron yoke 21a provided on the clamper 21 so as to sandwich the disk 100 (200). The clamper 21 is attached / detached so as to face the turntable 13 through an opening 22a formed in an upper base 22 serving as an upper chassis disposed so as to cover the upper portion of the traverse 15 in the housing 1. The left and right clamper lifters 23a and 23b provided on the upper base 22 are attached / detached by movement.

  The upper base 22 is provided with a centering member 24 for centering the disk and a trigger lever 25 for detecting the transport of the disk and switching to the raising / lowering operation of the traverse 15 on the lower surface side of the upper base 22 so as to be slidable and rotatable. It has been. Further, a guide lever 26 for stably holding the inserted disc between the turntable 13 and the clamper 21 is rotatably held. Here, the upper base 22 is fixed to the mechanical chassis 12, and the mechanical chassis 12 is sandwiched and fixed between the housings 1 and 2.

  2, 27a is a detection switch for detecting when a disk is inserted into the disk insertion opening 1a, 27b is a detection switch for detecting the end of loading when the disk is ejected, and 27c is a position where the disk can be reproduced. This is a detection switch that is detected when transported to the substrate 27 and is provided on the substrate 27 at a position facing the roller arm 7b (see FIG. 3). Reference numerals 28a and 28b denote link arms rotatably provided on the roller base 5. The roller arms 7a and 7b are provided on the roller base 5 so as to rotate synchronously. Reference numeral 29 denotes a disk detection lever provided on the roller arm 7b, which operates the detection switch 27a.

  Next, FIG. 3 will be described. FIG. 3 shows a mechanical chassis in which the components of the entire structure shown in FIG. 2 excluding the casings 1 and 2 and the roller base 5 including the roller arms 7a and 7b and the upper base 22 and the components are removed. The top view of the state attached to 12 is shown.

  As shown in FIG. 3, the turntable 13 and the optical pickup 14 are arranged on the traverse 15 in the approximate center of the disk device, and the intermediate chassis 19 is arranged so as to place the turntable 13 side of the traverse 15. . A slide cam 16 on the right side of the intermediate chassis 19 and a slide cam 18 on the left side are arranged on both sides of the mechanical chassis 12 so as to be slidable in the same front-rear direction (arrow B and B direction) as the disk transport direction. In the initial state, the slide cam 16 is urged in the direction of arrow A and the slide cam 18 is urged in the direction of arrow B via the link arm 17 by a spring 16 j stretched between the mechanical chassis 12. The intermediate chassis 19 engages left and right pins 19c and 19d with the lift cams 16a and 18a formed on the slide cams 16 and 18, and the left and right pins 19a and 19b are connected to bearing portions 12a and 12b formed on the mechanical chassis 12. Holds freely. With this configuration, by sliding the slide cams 16 and 18, the intermediate chassis 19 is moved up and down by rotating the pins 19c and 19d up and down around the pins 19a and 19b.

  Here, sliding of the slide cams 16 and 18 causes the trigger lever 25 to be rotated by the conveyance force by inserting a disk, which will be described later, and the slide cam 16 is slightly slid in the direction of the arrow B, whereby the rack 30 is moved to the pinion 10g. By engaging with each other, the driving force of the motor 9 can be performed by rotating a pinion 10g coaxial with the gear 10f via the worm gear 9a and the gears 10e-10d-10f. With the rotation of the pinion 10g, the slide cam 16 is further slid in the direction indicated by the arrow B through the meshing rack 30, and the slide cam 18 is moved in the direction indicated by the arrow A via the link arm 17 along with this sliding. It has become.

  That is, when the disc is conveyed by driving the motor 9, and the disc is conveyed to a reproducible position, the slide cams 16 and 18 are slid by the action of the trigger lever 25 and the transmission switching of the driving force of the motor 9, The intermediate chassis 19 and the traverse 15 are moved up and down, a disk is mounted on the turntable 13, and the clamper 21 is pulled by the magnetic force by the turntable 13 so that the disk is sandwiched and held, so that a playable state can be achieved.

  Further, as shown in FIG. 3, in the space 31 of the mechanical chassis 12 corresponding to the disk insertion opening 1a on the front surface of the apparatus main body, the disk inserted rotatably supported by the shaft 32 formed in the mechanical chassis 12 is inserted. The blocking member 33 is arranged and configured. The disk insertion blocking member 33 has a blocking piece 33a for blocking the insertion of the disk at the tip, and the other is rotatable as a rotation center 33b held by a shaft 32 formed on the mechanical chassis 12. Thus, the blocking piece 33a is configured to be movable up and down.

  Next, a description will be given of the configuration of a slot-in type transport device that transports a disk to a reproducible position. FIGS. 4 to 6 are views showing a state in which both the casings 1 and 2 and the upper base 22 including the upper guide 4 are removed in order to show the state of transporting the disk.

  FIG. 4 shows a state immediately after the large-diameter disc 100 is inserted into the disc insertion slot. At this time, the disc 100 is in contact with the pair of right rubber rollers 6a and 6b and the pair of left rubber rollers 6c and 6d. When the disk detection lever 29 provided on the arm 7b is rotated by the disk 100, insertion of the disk 100 is detected by operating the detection switch 27a. In this state, the motor 9 starts operating by the operation of the detection switch 27a, and the rubber rollers 6a and 6b are driven via the gear train 10 and the gear train 8, and the rubber rollers 6a and 6b as the drive rollers are driven. Is rotated in the direction of the arrow C to rotate the rubber roller 6d by the rotational driving force and frictional force of the rubber roller 6b and the frictional force of one of the non-rotating rubber rollers 6c and 6d. As a center, the disk 100 rotates in the direction of the arrow D.

  By rotating around the rubber roller 6d by the rotational driving force of the rubber roller 6b, the disk 100 is conveyed in the direction of the arrow A. By this movement, the space between the rubber rollers 6b and 6d is expanded by the disk 100, so a pair of roller arms 7a. , 7b rotate in the direction of arrow E and arrow F, that is, in the opening direction. As described above, when the roller arms 7a and 7b are opened, the rubber rollers 6a and 6c are once separated from the periphery of the disk 100, but are brought into contact with each other in the state shown in FIG.

  FIG. 5 shows a state where all of the rubber rollers 6a, 6b, 6c and 6d are in contact with the disk 100, and is conveyed from the disk position 100A immediately after insertion in FIG. 4 to a reproducible disk position 100C (FIG. 6). In the process, the disk position 100B shown in FIG. 5 is a position where the rotational driving of the disk 100 is switched from the driving by the rubber rollers 6b and 6d to the driving by the rubber rollers 6a and 6c. From this position to the disk position 100C, the disk 100 is further conveyed in the direction of the arrow B while rotating in the direction of the arrow D around the position of the rubber roller 6c by the rotational driving force of the rubber roller 6a.

  When the disc 100 is transported, it is transported while its thickness direction is held by the guide lever 26 shown in FIG. 2, and is transported while its position in the left-right direction is determined by the centering member 24. Then, when the disc 100 is transported to the position shown in FIG. 6, that is, the disc reproducible position facing the turntable 13, the trigger lever 25 detects the transport completion position of the disc 100, that is, the aforementioned disc position 100C. . At the disk position 100C shown in FIG. 6, the transmission of the driving force by the motor 9 is switched from the conveyance driving of the disk 100 to the driving of the slide cams 16 and 18 by the action of the trigger lever 25, and the disk mounting clamping operation is performed. However, FIGS. 7 and 8 show the state of switching by the trigger lever 25.

  FIG. 7 shows the moment when the conveyed disc 100 abuts on the detection portion 25a of the trigger lever 25, rotates about the rotation shaft 25c, and the pressing portion 25b contacts the engagement portion 16c of the slide cam 16. It is a state. Before the disk 100 is conveyed as shown in FIG. 7, the thickness direction of the disk 100 is held by the positioning guide 26b of the guide lever 26, and left and right by the centering positioning contact portions 24a and 24b of the centering member 24. It is conveyed while the position of the direction is determined, and the conveyance is detected by coming into contact with the detection portion 25a of the trigger lever 25 arranged at the conveyance locus position of the disc 100, and the trigger lever 25 rotates around the rotation shaft 25c. FIG. 7 shows a state in which the pressing portion 25b is in contact with the engaging portion 16c of the slide cam 16 by moving. When the disc 100 is further conveyed and reaches the reproducible disc position 100C shown in FIG. 6, the position shown in FIG. 8 is reached.

  Here, the trigger lever 25 rotates from the state shown in FIG. 7 to the state shown in FIG. 8 around the rotation shaft 25c. When the trigger lever 25 is rotated in the direction of the arrow, the slide cam 16 is slightly slid in the direction of the arrow B by the pressing portion 25b. Then, by sliding slightly, the rack 30 provided on the slide cam 16 starts to mesh with the pinion 10g to which the rotational force of the motor 9 is transmitted. With this meshing, the slide cam 16 is then moved to the motor. It is directly driven by 9 driving forces.

  From the state shown in FIG. 8, the slide cam 16 is further slid in the direction of the arrow B through the pinion 10 g and the rack 30 by the driving force of the motor 9, and along with this slide, the slide cam is connected via the link arm 17. 18 is moved in the direction of arrow a. By this driving, as described above, the clamping operation of the disk 100 onto the turntable 13 is performed.

  Here, in the process of switching from the disc transport operation to the clamping operation, the state where the disc 100 is sandwiched between the rubber rollers 6a and 6c is interlocked with the movement of the slide cams 16 and 18 as shown in FIG. It is separated so that there is no hindrance to the clamping operation.

  2 and 3, the slide cams 16 and 18 slide to rotate the intermediate chassis 19 in the vertical direction, and the traverse 15 is rotated. Accordingly, the turntable 13 is rotated accordingly. The disk 100 is made to be in a reproducible state by moving up the portion and clamping the disk 100 on the turntable 13 by the clamper 21.

  Next, the time when the disc 100 is ejected will be described. The disc 100 can be ejected by releasing the clamped state of the disc 100 in a reproducible state and lowering the traverse 15 and holding it again by the rubber rollers 6a and 6c. A driving force opposite to that during insertion and conveyance is transmitted to the rubber rollers 6a and 6b by the motor 9, and driving by the rubber rollers 6a and 6c is performed by a driving force in the direction opposite to the arrow C direction shown in FIGS. To start discharging. The disc 100 is transported while being rotated in the direction opposite to the direction indicated by the arrow D in FIGS. From the disk position 100C to the disk position 100B shown in FIG. 5, the disk 100 is conveyed while rotating in the direction opposite to the direction of the arrow D around the position of the rubber roller 6c by the rotational driving force of the rubber roller 6a. , 6b, 6c and 6d are in contact with the disk 100. From the state shown in FIG. 5 to FIG. 4, the sheet is similarly conveyed by driving by the rubber rollers 6 b and 6 d to be in the state shown in FIG. 4. FIG. 4 shows a state in which the disc 100 can be taken out by the user's fingers when unloaded. In this state, the disc 100 does not pop out due to the clamping and frictional force by the rubber rollers 6a to 6d and the frictional force due to the elasticity of the dustproof cover 3. It is supposed to be retained.

  Here, the roller arms 7a and 7b will be described with reference to FIGS. The roller arms 7a and 7b are provided so as to rotate in synchronization with the roller base 5 around the rotation shafts 7a-1 and 7b-1 by the link arms 28a and 28b. The rubber rollers 6a to 6d can be brought into contact with the disk 100 shown in FIG. For this reason, the roller arms 7a and 7b are provided with torsion coil springs 7a-2 for urging in the directions opposite to the directions of the arrow H and the arrow F, which are expanded by the disk 100, ie, the arrow G and arrow H directions. 7b-2 is provided. With this urging force, the disc 100 is sandwiched between the rubber rollers 6a, 6b and 6c, 6d, and can be conveyed while being always in contact.

  Next, the structure of the disk insertion slot for inserting the disk described above will be described with reference to FIGS.

  First, FIG. 11A shows the upper guide 4 that guides the upper side of the disc inserted into the disc insertion slot, and as a whole, has a shape curved in a gentle arcuate shape with the central portion facing upward. A through hole 4a into which the blocking piece 33a formed at the tip of the disk insertion blocking member 33 is inserted is formed at the center of the guide surface. FIG. 5B shows the roller base 5 that guides the lower side of the disc to be inserted. In addition to the guide portion 5a of the insertion slot described above, the front edge of the disc 100 (200) after insertion is shown. A through hole guide 5c for placing the lower surface guide portion 5b for guiding the lower surface, the rubber rollers 6a to 6d supported by the pair of roller arms 7a and 7b and the disk detection lever 29 on the disk insertion / conveying surface. To 5e and the notch guides 5f and 5g, and a through hole 5h through which the blocking piece 33a formed at the tip of the disk insertion blocking member 33 described above is formed. Here, in order to prevent the recording surface of the inserted disc 100 (200) from coming into contact with the guide portion 5a and being damaged, the guide portion 5a has the lowest central portion and both sides higher than the inserted disc plane. Thus, it is configured to have a gentle bow shape. Thereby, the disc 100 (200) to be inserted is inserted while the lower portions of both end edges thereof are in contact with each other.

  Next, FIGS. 12A and 12B show a state in which the first casing 1, the second casing 2 and the dust cover 3 are removed, and are formed on the upper guide 4 and the roller base 5. The disc insertion slot 300 is constituted by the guide portion 5a.

  FIG. 12A is a front view showing a state in which no disc is inserted. As is clear from FIG. 12, the upper guide 4 and the guide portion of the roller base 5 constituting the insertion slot 300 into which the disc is inserted. Each of the guide surfaces 5a has a curved shape that is curved in a gentle bow shape in the vertical direction, and a substantially central portion between the guide surfaces is used as a conveyance center of the inserted disk. The disc contact portions of the rubber rollers 6a to 6d described above are located on the same plane of the transport center, the disc detection lever 29 faces, and disc regulating members 41 and 42 that regulate the thickness direction of the inserted disc. The disc can be inserted while being guided by the upper guide 4 and the guide portion 5a of the roller base 5. In the state shown in FIG. 12 (a), the top of the turntable 13 is positioned below so as not to interfere with the disk insertion.

  FIG. 12B is a front view showing a state in which the disc 100 is inserted. When the disc 100 is inserted by the conveying means described above and mounted on the turntable 13, the above-described disc insertion blocking member 33 is shown. The blocking piece 33a formed at the tip of the disk protrudes into the disk insertion port 300 through the above-described through hole 5h formed in the roller base 5, so that further disk insertion can be blocked. In the state shown in FIG. 12 (b), the turn tape 13 is lifted from the state shown in FIG. 12 (a), and the ascending operation is performed by sliding the slide cams 16 and 18 described above. The state of the disc insertion preventing member 33 is changed from FIG. 12 (a) to FIG. 12 (b) in conjunction with the transport operation based on the insertion of the disc 100 and the subsequent raising operation. The operation thereof will be described later.

  Here, with reference to FIGS. 13 to 16, the above-described lifting and lowering operation of the turntable 13 following the conveying operation based on the insertion of the disk 100 will be described.

  13 and 14 show a standby state in which the turntable 13 is lowered and no disc is inserted. In this state, the slide cam 16 is urged in the direction of arrow A by the spring 16j. On the other hand, the slide cam 18 connected to the link arm 17 is urged in the reverse arrow B direction by the same spring 16j by the action of the link arm 17 rotatable about the shaft 17a. In this state, since the turntable 13 is in a lowered state, the disc can be inserted, and the state shown in the front view of FIG. In FIG. 14, a protrusion 18b formed on the slide cam 18 abuts on a detection switch 27c that is detected when the disk is slid to a reproducible position. 13 and 14, the disk 100 is inserted and transported to a reproducible position as described above, and the slide cam 16 is pressed by the action of the trigger lever 25 so that the rack 30 is moved to the pinion 10g. Continue until they engage and start to slide.

  Then, the driving force of the motor 9 is transmitted from the pinion 10g to the slide cam 16 via the rack 30, so that the slide cam 16 slides, and the lift cam 16a of the slide cam 16 and the lift cam 18a of the slide cam 18; Through the left and right pins 19c and 19d of the intermediate chassis 19, the intermediate chassis 19 is raised to raise the turntable 13, and the disk mounting is completed by the above-described action. FIG. 15 and FIG. 16 show the lift completion state.

  FIGS. 15 and 16 show a state where the mounting at the disk transport position of FIG. 6 described above is completed. The slide cams 16 and 18 are in contact with the protrusions 18b formed on the slide cam 18 in contact with the detection switch 27c. The position is detected, the driving of the rack 30 by the motor 9 is stopped, and the engagement is maintained. This state is maintained until the attached disk is instructed to be ejected, and the motor 9 starts the reverse rotation driving until the driving force in the direction opposite to that at the time of mounting is transmitted to the rack 30.

  17 and 18 show the slide cams 16 and 18 and the link arm 17 as viewed from the lower surface side. As shown in this figure, the engaging pins 17b and 17c formed at both ends of the link arm 17 are engaged with the engaging recesses 16n and 18d formed in the slide cams 16 and 18, respectively, thereby connecting and interlocking the two. To make it work. The engaging recesses 16n and 18d have a groove shape formed so as to be elongated in the direction perpendicular to the sliding direction in order to correspond to the relative distance associated with the rotation about the shaft 17a of the link arm 17. Yes. With this configuration, the slide cams 16 and 18 can slide in opposite directions in conjunction with each other by the link arm 17.

  As shown in FIGS. 17 and 18, the slide cam 16 forms a cam 16 p for rotating the clutch plate 11 in conjunction with the slide on the back surface side. The cam 16p includes a first cam portion 16p-1 formed in a direction perpendicular to the sliding direction of the slide cam 16, and a second cam formed continuously in the sliding direction of the slide cam 16. The cam portion 16p-2 is formed.

  Next, the clutch plate 11 will be described with reference to FIG. The clutch plate 11 rotates a bearing portion 11a for rotatably supporting a shaft formed on the mechanical chassis 12, an engagement pin 11b engaged with a cam 16p formed on the slide cam 16, and a gear 10c. A freely supporting shaft 11c and a cam 11d for moving the disk insertion preventing member 33 up and down are configured. The clutch plate 11 is configured so that the bearing portion 11a is coaxial with the rotation shaft of the gear 10d that transmits the driving force of the motor 9, and the gear 10c supported by the shaft 11c can be rotated in the mounted state. The cam 11d has a lower surface cam portion 11d-1, an inclined cam portion 11b-2, and an upper surface cam portion 11b-3.

  The clutch plate 11 is rotated by engaging the engaging pin 11b with the cam 16p of the slide cam 16. In the state shown in FIG. 18, the clutch plate 11 is slid in the direction of the arrow B, and when the engagement pin 11b comes into contact with the first cam portion 16p-1, the clutch plate 11 becomes a bearing portion. It rotates in the direction of arrow wing around 11a. Then, the slide cam 16 is further slid in the direction indicated by the arrow B, and the engagement pin 11b moves from the first cam portion 16p-1 to the second cam portion 16p-2. At this time, the clutch plate 11 is rotated. Stopped. When the engagement pin 11b is guided by the second cam portion 16p-2, the slide cam 16 is further slid in the direction indicated by the arrow B, and when the disc is completely loaded at the reproducible position, the slide cam 16 is reached. FIG. 29 shows a state in which the slide is stopped. In this state, the engagement pin 11b is held by the second cam portion 16p-2, and the clutch plate 11 is in a state in which the rotation is restricted.

  Next, the relationship between the clutch plate 11 and the disk insertion preventing member 33 will be described with reference to FIG. Here, the disc insertion blocking member 33 is disposed in the vicinity of the disc insertion opening 300 in the disc device, as described with reference to FIGS. An engagement pin that has a blocking piece 33a for blocking the insertion of a disk at the tip and is configured to be rotatable with the other as a rotation center 33b and engages with the cam 11d of the clutch plate 11 shown in FIG. 33c is provided. As shown in FIG. 19 described above, the cam 11d of the clutch plate 11 is configured to raise and lower the disk insertion preventing member 33. The lower surface cam portion 11d-1, the inclined cam portion 11b-2, and the upper surface cam portion 11b- 3.

  With this configuration, the blocking piece 33a of the disk insertion blocking member 33 is in the lowered state shown in FIG. 20 (a) when the disk 100 (200) is not mounted on the turntable 13 and can be inserted. As shown in FIG. 12 (a), it does not protrude into the insertion port 300. Then, as described above, the disk 100 (200) is inserted and the conveyance by the conveyance means is completed, and the slide cam 16 slides in the direction indicated by the arrow B from the state shown in FIG. Rotate in the direction of By this rotation, the disk insertion preventing member 33 is moved from the lower surface cam portion 11d-1 to the upper surface cam portion 11b-2 via the inclined cam portion 11b-2 by the cam 11d of the latch plate 11 with which the engagement pin 33c is engaged. 3 will be guided. In this process, the disk insertion preventing member 33 is rotated in the arrow direction by the rotation center 33b to be in the state shown in FIG.

  Here, in the state shown in FIG. 20B, the engaging pin 33c is held on the upper surface cam portion 11b-3, and in the state shown in FIG. 12B, the blocking piece 33a protrudes into the insertion port 300. Is in a state of being. In this state, since the disk 100 (200) is mounted on the turntable 13, the insertion of the disk 100 (200) is blocked by the blocking piece 33a so that another disk 100 (200) cannot be inserted. It is in a state that can be.

  The timing of the state change of the disk insertion preventing member 33 from the state shown in FIG. 20A to the state shown in FIG. 20B is influenced by the rotation of the clutch plate 11 with respect to the slide cam 16 described above. Next, the operation will be described with reference to FIGS. 21 to 23, in which the clutch plate 11 switches the driving force of the motor 9 from the disk transport to the lifting / lowering operation for mounting the disk by sliding the slide cam 16. Here, the clutch plate 11 has a role of switching the transmission of the driving force of the motor 9 from the disk transport operation to the disk lift operation in conjunction with the slide of the slide cam 16.

  In the state of FIG. 21, the driving force of the motor 9 can be transmitted to the gear 10a through the gear train 10 of the worm gear 9a and the gears 10e-10d-10c-10b. At this time, the gear 10f is below the gear 10d. The pinion 10g coaxial with the gear 10f is not in mesh with the rack 30, although it can mesh with the side gear and rotate simultaneously. In this state, by driving the motor 9 as the driving source, the driving force is transmitted to the gear train 8 including the gears 8a to 8c provided on the roller arm 7a, and the rubber rollers 6a and 6b are provided via the roller gears 6e and 6f. Is in a state where it can be rotationally driven. Therefore, in this state, when the disk is inserted and detected, and the motor 9 is driven, the driving force is transmitted to the rubber rollers 6a and 6b and acts as a disk conveying force. In this state, the disc 100 (200) can be transported by inserting the disc 100 (200), and the disc 100 (200) is transported in the direction of the arrow A to the reproducible position. 25, the slide cam 16 is slid in the direction of the arrow B. Then, when the rack 30 is engaged with the rotating pinion 10g, the rack 30 is engaged with the rack 30 and the slide cam 16 is further slid in the direction of arrow B. As the slide cam 16 slides, the clutch plate 11 rotates in the direction of the arrow as described with reference to FIGS. By this rotation, the gear 10c provided on the clutch plate 11 also moves in the direction of the arrow at the same time, so that the meshing with the gear 10b provided on the mechanical chassis 12 is disconnected, and this disconnected state is illustrated in FIG. 22 states.

  In the state of FIG. 22, in the state where the conveyance of the disk 100 (200) is completed, the transmission to the gear 10a meshing with the gear 10b is disconnected, and the transmission of the driving force to the rubber rollers 6a and 6b is disconnected. The driving force of the motor 9 is transmitted only from the gear 10d to the gear 10f, and the slide cam 16 is driven, that is, the disk mounting operation is driven. When the slide cam 16 is further slid in this state, the clutch plate 11 shifts the engagement pin 11b to the engagement of the second cam portion 16p-2 of the cam 16p, and the further rotation is not performed. And the rotation state of the clutch plate 11 is maintained. In a state where the engagement pin 11b is engaged with the second cam portion 16p-2, the slide cam 16 is allowed to move further in the direction of the arrow B, and then the slide cam 16 is moved in the state shown in FIG. The slide is stopped. In the course of the rotation of the clutch plate 11 by the first cam portion 16p-1 to the second cam portion 16p-2, a disk mounting operation is performed. Then, the disc mounting completion state shown in FIG. 23 is obtained.

  The state shown in FIG. 23 is the same as that shown in FIG. 20B, and is a state where the driving of the rack 30 by the motor 9 is stopped and the engagement is maintained. This state is maintained until the disk 9 mounted on the turntable 13 is instructed to be ejected, and the motor 9 starts reverse driving, and the driving force in the direction opposite to that at the time of mounting is transmitted to the rack 30. Further, the state of the clutch plate 11 in FIG. 21 is a state in which the clutch plate 11 is slightly rotated in the direction of the arrow in comparison with the state of FIG.

  Next, the detailed configuration of the disk insertion blocking member 33 described above will be described with reference to FIGS. In the figure, the disc insertion blocking member 33 is formed with an elastic piece 33d slightly closer to the blocking piece 33a side on the upper surface side in the drawing, and the tip of the elastic piece 33d is formed to project to form a contact portion 33e. The lower surface side is a flat portion 33 f along the inner surface of the chassis 12. On the other hand, an elastic piece 12d is formed by a U-shaped notch 12c at the position of the chassis 12 where the lower surface flat portion 33f of the disk insertion blocking member 33 faces, and the tip of the elastic piece 12d is formed as a contact portion 12e. The figure also shows the relationship between the engagement pin 33c of the disk insertion preventing member 33 and the cam 11d of the clutch plate 11. Here, the chassis 12 on which the elastic piece 12d is formed and the disk insertion prevention member 33 on which the elastic piece 33d is formed are made of a synthetic resin molding material that can be elastically deformed.

  FIG. 24A is a cross-sectional view showing a state in which the disc insertion blocking member 33 does not protrude from the disc insertion opening 300, and is the state shown in FIGS. 12A and 20A. The state of this figure is a state in which the blocking piece 33 a formed at the tip is held in a state of being retracted to a position below the lower surface guide portion 5 b of the roller base 5. In this state, the engaging pin 33c of the disc insertion preventing member 33 is moved by the lower surface cam portion 11d-1 of the cam 11d of the clutch plate 11 so that the blocking piece 33a side is located on the inner surface side of the chassis 12 around the rotation center 33b. This is done by being energized. In this state, the disk insertion preventing member 33 is elastically held by the elastic force of the elastic piece 12d, with the tip portion of the lower flat surface portion 33f abutting on the abutting portion 12e of the elastic piece 12d of the chassis 12. Yes. As described above, the state of this figure is conveyed from a state in which no disc is inserted to a position where the disc can be reproduced after the disc is inserted, and the clutch plate 11 is interlocked with the movement of the slide cam 16 during the disc loading operation. It will be maintained until it rotates.

  Next, FIG. 24B is a cross-sectional view of the state in which the disc insertion preventing member 33 protrudes into the disc insertion port 300, which is the state of FIGS. 12B and 20B. In this state, the blocking piece 33a formed at the tip is held at a position where the blocking piece 33a protrudes into the disc insertion port 300 through the through hole 5h formed in the roller base 5. The change to this state is shown in FIG. 24 (a), from the state where the engagement pin 33c corresponds to the lower surface cam portion 11d-1 of the cam 11d when the clutch plate 11 is rotated by the action described above. It goes on the upper surface cam part 11b-3 via the inclined cam part 11b-2 and is performed by the prevention piece 33a rising. In this state, the engagement pin 33c of the disk insertion preventing member 33 is positioned on the upper surface cam portion 11d-3, so that the rotation is biased toward the lower surface side of the roller base 5 with the rotation center 33b as a center. Is done. In this state, the disc insertion preventing member 33 has a contact portion 33e at the tip of the elastic piece 33d in contact with the lower surface of the lower surface guide portion 5b of the roller base 5, and is elasticized by the elastic force of the elastic piece 33d. Is held. Further, in this state, the blocking piece 33a is inserted into the through hole 4a formed in the upper guide 4, and the blocking piece 33a is inserted in the disc insertion direction (arrow B direction) by the through hole 5h and the through hole 4a. ) Is restricted at the top and bottom of the opening of the insertion port 300, and the disk insertion blocking member 33 can be prevented from being deformed. That is, the through holes 4a and 5h serve as a restricting portion of the blocking piece 33a and also prevent the disk insertion blocking member 33 itself from being deformed by the rotation center 33b supported by the shaft 32. .

  Further, in FIGS. 24A, 24B, and 25, the disk insertion blocking member 33 is deformed on the side of the disk insertion blocking member 33 to prevent the disk insertion blocking member 33 from swinging or deforming in the disk insertion direction. Guide portions 12f, 12g, and 12h as prevention members are formed integrally with the chassis 12. The guide portion 12f is provided on the inner side of the blocking piece 33a and acts as a guide when the blocking piece 33a moves up and down, and in particular, the deformation of the blocking piece 33a toward the downstream side (inside) in the disc insertion direction. I try to prevent it. The guide portions 12g and 12h are provided on both sides of the main body portion on which the elastic piece 33d of the disc insertion preventing member 33 is formed, and act as a guide when the disc insertion preventing member 33 moves up and down. It prevents rocking and deformation when the 33 moves up and down so that it can move up and down stably.

  As described above, the disk transport apparatus according to the present embodiment is a slot-in type disk transport apparatus in which a disk is inserted into an insertion port on the front surface of the apparatus main body and the disk is loaded. Disc holding means for holding the disc, a trigger member for detecting that the disc has been conveyed to a reproducible position, and a slide that starts moving by the action of the trigger member when the trigger member detects the disc A cam member, a clamp mechanism for making the disc reproducible in conjunction with the movement of the slide cam member, and when the disc is in the clamp state, it protrudes from the disc insertion port and the disc is not inserted A disc insertion blocking member having a blocking piece configured to be movable up and down in a retracted position; And a switching mechanism having means capable of holding the disk insertion blocking member in a protruding position and a retracted position with respect to the disk insertion port in conjunction with movement of the member, and the blocking member includes attitude holding means of the switching mechanism. This is an elastic means that enables elastic contact with the opposite direction to the device body in each of the protruding position and the retracted position by the linkage of the disk, and the disk is directly inserted and held by the roller In the slot-in method, the disc insertion preventing member is interlocked with the disc clamping operation performed by detecting that the disc has been transported to a reproducible position in the slot-in method in which the disc is inserted. Therefore, it is possible to reliably prevent duplicate insertion when a disc is loaded. Since the vertical position of the projecting and retracted positions of the member is held by the switching mechanism, and the state to be elastically held, such an action can be held without vibration sound is generated even for high-speed driving.

  Further, in the disk transport device of the present embodiment, the elastic means for the disk blocking member is constituted by the disk blocking member itself or an elastic piece formed integrally with the chassis, and does not generate vibration sound. It has the effect | action that can be comprised easily.

  Further, the disk transport device of the present embodiment is provided for preventing deformation of the disk blocking member at a position corresponding to a blocking piece of the disk blocking member protruding from the insertion slot at the lower and upper portions of the disk insertion slot. The restricting portion is configured and has an effect that even if an external load is applied to the blocking piece due to insertion of a disk or the like, it can be reliably blocked.

  Further, in the disk transport device of the present embodiment, the switching mechanism is formed by forming a cam portion as a posture holding means for the protruding position and the retracted position of the disk insertion preventing member, and can reliably hold the state thereof. It has the action.

  Further, the disk transport device of the present embodiment is configured such that a guide part integrally formed with the chassis is formed at a side part where at least the blocking piece of the disk blocking member capable of ascending / descending is formed, and serves as a guide at the time of the lifting operation. The blocking piece prevents rocking and deformation, and can move up and down stably even if the dimension between the rotation center of the rotatable disk blocking member and the blocking piece is somewhat large. It has the effect | action that the raising / lowering dimension of can also be taken large.

  The disk device of the present invention is a slot-in type disk transport device in which both sides are held and carried by rollers that guide the peripheral edge of the disk, and in particular, a disk-shaped recording medium such as a CD, DVD, or BD. This is useful for a disk device having a slot-in loading mechanism for loading into the device without using a tray.

DESCRIPTION OF SYMBOLS 1 1st housing | casing 2 2nd housing | casing 3 Dust-proof cover 4 Upper guide 4a Through-hole 5 Roller base 5b Lower surface guide part 5h Through-hole 6a-6d Rubber roller 6e, 6f Roller gear 7a, 7b Roller arm 8a-8c Transmission gear 9 Motor 10a to 10f Transmission gear 11 Clutch plate (switching mechanism)
11d cam 11d-1 lower surface cam portion 11d-2 inclined cam portion 11d-3 upper surface cam portion 12 mechanical chassis 12c U-shaped notch 12d elastic piece 12e abutting portion 12f, 12g, 12h guide portion 13 turntable 15 traverse 16, 18 slide cam 17 link arm 21 clamper 24 centering member 25 trigger lever 26 guide lever 32 shaft 33 disk insertion blocking member 33a blocking piece 33b rotation center 33c engagement pin 33d elastic piece 33e abutting section 300 disk insertion slot

Claims (5)

A slot-in type disk transport device in which a disk is inserted into an insertion port on the front of the apparatus main body to carry in the disk,
Disk transport means for transporting while holding the inserted disk;
A trigger member for detecting that the disc has been transported to a reproducible position;
A slide cam member that starts moving by the action of the trigger member when the trigger member detects a disk;
A clamping mechanism for bringing the disc into a reproducible clamping state in conjunction with the movement of the slide cam member;
A disc insertion blocking member having a blocking piece configured to be raised and lowered to a retracted position when the disc is not inserted, protruding into the disc insertion port when in the clamp state;
A switching mechanism having means capable of holding the disc insertion blocking member in the protruding position and the retracted position to the disc insertion opening in conjunction with the movement of the slide cam member,
The blocking member constitutes elastic means that can elastically contact with the opposite direction to the apparatus main body in each of the protruding position and the retracted position in cooperation with the posture holding means of the switching mechanism. Disk transport device. 2. The disk transport device according to claim 1, wherein the elastic means for the disk blocking member is constituted by an elastic piece formed integrally with the disk blocking member itself or the chassis. 3. The deformation preventing restricting portion of the disk blocking member is configured at a position corresponding to a blocking piece of the disk blocking member protruding from the insertion port at a lower portion and an upper portion of the disk insertion port. Disc transport device. The disk transfer device according to claim 1, wherein the switching mechanism forms a cam portion as a posture holding means for a protruding position and a retracted position of the disk insertion preventing member. The disk according to claim 1, wherein a guide part integrally formed with the chassis is formed on at least a side part of the disk blocking member capable of ascending and descending so as to serve as a guide during the lifting operation. Conveying device.