JP2008004202A - Disk loading mechanism and disk driving device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remove foreign objects or the like from a roller for inserting/ejecting a disk recording medium without complicating or enlarging a configuration. <P>SOLUTION: The disk loading mechanism is provided with a pair of rollers 30 and 31 which are disposed at a predetermined space, and at least one of which is rotated to insert/eject a disk recording medium 2 with respect to a housing part, a shutter 39 disposed outside the pair of rollers 30 and 31 to open/close the predetermined space, and a detecting means 100 for detecting a pull-in state when inserting/ejecting the disk recording medium 2 by the pair of rollers 30 and 31. The shutter 39 is provided with a cleaning member 40 selectively brought into contact with one of the rollers to clean a roller surface while the shutter 30 opens or closes the predetermined space. Based on the detection output of the detecting means 100, the shutter 39 is opened/closed to bring the cleaning member 40 into contact with one of the rollers 30 and 31, thereby cleaning the roller surface. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is provided in a disk drive device that stores a disk-shaped recording medium in a storage unit inside the apparatus and records and / or reproduces signals on the stored disk-shaped recording medium. The present invention relates to a disk loading mechanism for inserting and ejecting a disk-shaped recording medium, and a disk drive device using the same.

  2. Description of the Related Art Conventionally, there is a disk drive device that can reproduce a disk-shaped recording medium such as a CD (Compact Disk). These disk drive apparatuses are provided with a disk loading mechanism for inserting a disk-shaped recording medium into the apparatus and discharging the disk-shaped recording medium from the apparatus.

  This disk loading mechanism has, for example, a pair of rollers provided with a predetermined gap, and rotates the rollers while sandwiching the disk-shaped recording medium between the pair of rollers, thereby rotating the disk-shaped recording medium. Insert or eject. Here, this predetermined gap becomes a disk insertion / removal opening.

  In a disk drive apparatus having such a disk loading mechanism, there is a problem that foreign matters such as dust and dust entering from the outside through the disk insertion / removal port adversely affect the recording / reproducing unit inside the apparatus. Therefore, such a disk loading mechanism is provided with a shutter or the like that opens and closes the disk insertion / removal opening, thereby preventing the above-described entry of dust, dust, and the like.

  However, even in a disk loading device having a shutter, it is possible to prevent foreign matter from directly entering, but since foreign matter or the like adhering to the disc comes into contact with the roller, it remains attached to the roller, and these foreign matter is damaged on the disc. There is a risk that the disc may not be smoothly conveyed due to the frictional force or the frictional force may be reduced, causing problems such as problems in insertion and ejection.

  In order to solve such a problem, there was a disk loading mechanism having a mechanism for cleaning the roller. However, the addition of the configuration causes problems such as a complicated configuration and an increase in the size of the apparatus. There was a risk of it.

Japanese Utility Model Publication No. 5-73792

  SUMMARY OF THE INVENTION An object of the present invention is to provide a disc loading mechanism capable of removing foreign matters and the like of a roller for inserting and ejecting a disc-shaped recording medium without complicating and increasing the size of the disc loading mechanism having a shutter. And a disk drive apparatus using the same.

  A disc loading mechanism according to the present invention is provided with a predetermined gap, and at least one of them rotates to insert and eject a disc-shaped recording medium with respect to a storage portion, and the pair of rollers. A shutter provided on the outside for opening and closing the predetermined gap; and a detecting means for detecting a drawing state of the pair of rollers when the disk-shaped recording medium is inserted or ejected. The shutter includes the shutter Is provided with a cleaning member that selectively contacts one of the rollers in a state where the predetermined gap is opened or closed and cleans the surface of the roller, and opens and closes the shutter based on the detection output of the detection means. Then, the cleaning member is brought into contact with the one roller to clean the surface of the roller.

  A disk drive device according to the present invention includes a storage unit that stores a disk-shaped recording medium, and a recording and / or playback unit that records and / or reproduces signals to and from the disk-shaped recording medium stored in the storage unit. A disk loading mechanism for inserting a disk-shaped recording medium into the storage section or discharging the disk-shaped recording medium from the storage section, and the disk loading mechanism used in this disk drive device is as described above. It is what was used.

  The loading mechanism and the disk drive device according to the present invention enable the removal of foreign matters on a roller for inserting and ejecting a disk-shaped recording medium without complicating the configuration and increasing the size of the disk-shaped recording. Smooth conveyance of the medium can be realized.

  Hereinafter, an example in which the disk loading mechanism and the disk drive apparatus according to the present invention are applied to a disk changer apparatus will be described in detail with reference to the drawings.

  As shown in FIG. 1, a disc changer device to which the present invention is applied has a disc-shaped recording medium such as six CDs (Compact Disks) in a main unit 1 of a standard size called a so-called 1DIN size. (Hereinafter referred to as “disk”) 2 is a small-sized disk changer device capable of storing 2 together. The disc changer device can select and play an arbitrary disc 2 out of the six discs 2.

  In addition, the disc changer device is installed in a standardized storage space provided in a center panel in a passenger compartment by storing the device main body 1 in a certain standard size. As a result, the disk 2 can be exchanged in the passenger compartment, and convenience is improved.

  Hereinafter, a specific structure of the disk changer device will be described.

  FIG. 1 is a perspective view showing an appearance of the main body 1 of the disk changer device. In addition, the apparatus body 1 is originally provided with an operation panel provided with operation buttons and the like on the front surface of the casing, and the casing itself is covered with an exterior case. The illustration of the outer case is omitted.

  As shown in FIGS. 1 and 2, in the disk changer apparatus, the apparatus main body 1 is provided with a substantially rectangular bottom plate 1a and standing upward from both side edges of the bottom plate 1a. A pair of side plates 1b and 1c formed integrally, a front plate 1d attached along the front edge of the bottom plate 1a and side plates 1b and 1c, and the bottom plate 1a, and these side plates 1b , 1c and the ceiling plate 1e attached along the upper edge of the front plate 1d constitutes a substantially box-like casing while opening the back side. FIG. 2 is an exploded perspective view showing the internal structure of the apparatus main body 1.

  This disk changer device is arranged in a direction parallel to the signal recording surface of the disk 2 with respect to the disk storage section 3 through a disk storage section 3 for storing the disk 2 and a disk insertion / removal opening 4 provided in the front plate 1d. A disc insertion / removal device 5 for inserting / removing the disc 2 and a pickup device which is a recording and / or reproducing unit for selecting one of the discs 2 stored in the disc storage unit 3 and reproducing a signal. 6 is provided.

  As shown in FIGS. 1 and 3, the disk storage unit 3 has six disk trays (hereinafter referred to as “trays”) on which the disks 2 are placed on the front side in the housing facing the disk insertion / removal opening 4. 7) are arranged in a stacked state. FIG. 3 is an exploded perspective view showing the structure of the disk storage unit 3.

  As shown in FIG. 3, the tray 7 is formed in a flat plate shape using a metal material, a resin material, or the like, and a pair of resin members 9 as guide members attached to both sides, and a front surface along the upper surface of the resin member 9. And a leaf spring 11 as a spring means attached in a state where the side is fixed.

  The pair of resin members 9 have substantially the same thickness as the disk 2 placed on the disk tray portion 7a, and are arranged substantially parallel to the disk tray portion 7a on the surface facing the side plates 1b and 1c. A pair of pins 10a and 10b are formed to protrude toward the side plate of the outer casing.

  The tray 7 supports the peripheral edge of the inserted disk 2 and holds the disk 2 by being pressed from above by the pressing piece 11 a of the leaf spring 11.

  The six trays 7 have through-holes 12 formed therein, and are supported so as to be movable in the vertical direction by inserting guide columns 13 provided in the disk storage unit 3. Further, the uppermost tray 7 is provided with an insertion hole 9b and a spring receiving portion 9a. A guide column 14 provided in the disk storage unit 3 is inserted therethrough and provided along the guide column 14. The coil spring 15 is biased downward.

  The disk insertion / removal device 5 applies a disk loading mechanism according to the present invention, and is disposed on a front plate 1d provided with a disk insertion / removal opening 4 as shown in FIGS. FIG. 4 is a perspective view of the main part of the disk insertion / removal device 5 as seen from inside the housing.

  The disc insertion / removal device 5 includes a pair of driving roller 30 and driven roller 31 that are arranged to face each other with a predetermined gap, and a shutter mechanism 38 that opens and closes the predetermined gap. Here, the predetermined gap between the driving roller 30 and the driven roller 31 becomes the disk insertion / removal port 4 when the disk 2 is inserted and ejected.

  Of these, the drive roller 30 is rotatably supported at both ends of the support shaft 32, while the central portion of the support shaft 32 is supported by the drive bearing 33, and between these shafts is supported. A rubber roller 34 is covered on the peripheral surface of the support shaft 32. The drive bearing 33 is made of resin, and a groove 33 a is formed along the support shaft 32 on the back side thereof. And the center part of the support shaft 32 is rotatably inserted in this groove part 33a. The rubber roller 34 is restrained from sliding in the axial direction.

  On the other hand, the driven roller 31 is rotatably supported at both ends of the support shaft 35, while the central portion of the support shaft 35 is supported by a driven bearing 36. A resin roller 37 is coated on the peripheral surface of the shaft 35. The driven bearing 36 is made of resin, and a groove 36 a is formed along the support shaft 35 on the back side thereof. And the center part of the spindle 35 is inserted in this groove part 36a rotatably. The resin roller 37 is restrained from sliding in the axial direction.

  The driven roller 31 is biased toward the driving roller 30 by a torsion coil spring 29. Here, the driving roller 30 is rotationally driven by a roller driving motor 109 described later and a gear group (not shown) that transmits the driving force of the roller driving motor.

  The disk insertion / removal device 5 inserts or ejects the disk 2 through the disk insertion / removal port 4 by rotating the drive roller 30 while sandwiching the disk 2 between the pair of drive rollers 30 and the driven roller 31.

  The shutter mechanism 38 has a substantially rectangular shutter 39 that is smaller in size in the vertical direction than the front plate 1d. The shutter 39 is attached to the front plate 1d while being movable in the vertical direction. Yes. The shutter mechanism 38 raises the shutter 39 to move the upper end of the shutter 39 to a position higher than the disk insertion / removal port 4 to close the disk insertion / removal port 4 while lowering the shutter 39. Thus, the upper end portion of the shutter 39 is moved to a position lower than the disk insertion / removal opening 4 to open the disk insertion / removal opening 4. That is, the shutter 39 moves in the direction in which the pair of driving rollers 30 and the driven rollers 31 arranged side by side in the vertical direction, thereby forming a predetermined gap between the pair of driving rollers 30 and the driven rollers 31. Close / open.

  As shown in FIG. 5, the shutter 39 is provided with a sharp portion 40 as a cleaning member that contacts the driving roller 30 in a state where the disk insertion / removal port 4 is opened, that is, in a state where the shutter 39 is lowered. As shown in FIGS. 5 and 6, the sharp portion 40 is provided as a sharp edge portion integrally protruding on the inner surface side of the upper end portion of the shutter 39, and is formed as it is by, for example, punching burr. be able to. The sharp portion 40 may be formed on the shutter 39 by other methods. Further, the sharpened portion 40 is formed so as to be in contact with substantially the entire axial direction (longitudinal direction) of the drive roller 30, but may be configured to be in contact with a part of the longitudinal direction as will be described later. Good. FIG. 5 shows a state in which the shutter 39 opens the disk insertion / removal opening 4, and FIG. 6 shows a state in which the shutter 39 closes the disk insertion / removal opening 4.

  When the driving roller 30 rotates while the sharpened portion 40 provided on the shutter 39 is in contact with the driving roller 30, foreign matter adhering to the surface of the driving roller is removed to make the roller surface clean. (Hereinafter also referred to as “cleaning”).

  In the disk insertion / removal device 5 configured as described above, the shutter 39 is opened, that is, the shutter 39 is lowered to bring the sharpened portion 40 into contact with the driving roller 30 and the driving roller 30 is caused to idle, for example. The foreign matter such as dust and dust attached to the drive roller 30 can be removed by shaving. In addition, it becomes possible to discharge | emit a foreign material outside by making the idling direction into the arrow R1 direction in FIG. Note that the arrow R1 direction in FIG. 5 is the direction in which the drive roller 30 is driven when the disk 2 is ejected.

  The disk insertion / removal device 5 rotates the driving roller 30 with the shutter 39 opened in a so-called retracted state in which the disk 2 is inserted and ejected. At this time, the dust adhering to the driving roller 30 is also rotated. , Dust and other foreign matters will be removed.

  Further, in this disk insertion / removal device 5, a cleaning operation is performed independently of the pull-in operation. That is, the disk insertion / removal device 5 opens the shutter 39 in accordance with a detection output of a detection means (to be described later) that detects a retracted state when the disk 2 is inserted into or ejected from the driving roller 30 and the driven roller 31. The sharp portion 40 as a cleaning member is brought into contact with the driving roller 30 and the driving roller 30 is idled to clean the roller.

  Thus, since the disk insertion / removal device 5 can perform the cleaning operation independently, the disk changer device capable of storing a plurality of disks 2 or the MP3 system capable of recording thousands of songs on one disk 2. This is particularly useful when the disk 2 is not transported by the driving roller 30 and the driven roller 31 for a long time in a disk drive device or the like.

  The cleaning member formed on the shutter 39 is not limited to the sharp portion 40 described above. For example, as shown in FIGS. 7A and 7B, flocking (brush), rubber, etc. The cleaning member 40A formed by the above may be configured to be affixed inside the shutter. Here, the flocking can be formed, for example, by spraying hard synthetic resin, glass fiber or the like. Here, as shown in FIG. 7B, the cleaning member 40 </ b> A is formed in a part of the longitudinal direction of the drive roller 30. You may form so that it may do. As shown in FIG. 7 (b), even when the cleaning member 40A is formed on a part of the driving roller 30, the inner portion of the disk 2 that is first nipped and transported is cleaned, so that smooth and reliable. Can be realized over a long period of time. Similarly, in the example in which the above-described sharp portion 40 is formed, it may be configured to be formed on a part of the drive roller 30 in the longitudinal direction, similarly to the cleaning member 40A shown in FIG.

  Further, as shown in FIG. 8, the cleaning member 40B having the same configuration as the cleaning member 40A is brought into contact with the drive roller 30 in a state where the disk insertion / removal port 4 is closed, that is, in a state where the shutter 39 is raised. You may comprise. Furthermore, the cleaning member may be configured so that the upper end portion of the shutter 39 is in contact with the driving roller 30, and a so-called knurling in which a plurality of minute protrusions are formed in this portion may be formed.

  Further, here, the shutter 39 opens or closes the disk insertion / removal opening 4 to bring the cleaning members 40, 40A, 40B, etc. into contact with the driving roller 30, and to rotate the driving roller 30. Although the cleaning operation is performed, the present invention is not limited to this, and the cleaning operation is performed by causing the cleaning member 40, 40 </ b> A, 40 </ b> B and the like to slide on the driving roller 30 by once opening / closing the shutter 39. You may comprise so that operation | movement may be performed.

  1, 2 and 9, the shutter mechanism 38 includes a left and right slide plate 41 having a substantially L-shaped cross section that is movable in a direction (left and right direction) along the front plate 1d. The left and right slide plates 41 are attached along the edges of the bottom plate 1a and the front plate 1d, and are urged by the coil spring 48 in one direction X1 (right side). The left and right slide plates 41 function as a shutter driving member that opens and closes the shutter 39 by moving in a direction orthogonal to the moving direction of the shutter 39 in substantially the same plane as the shutter 39. In this shutter mechanism 38, the shutter 39 is provided so as to be sandwiched between the front plate 1d and the left and right slide plates 41, and is provided closer to the driving roller 30 and the driven roller 31 than the left and right slide plates 41. .

  The shutter mechanism 38 is provided with a shutter 39 closer to the drive roller 30 and the driven roller 31 than the left and right slide plates 41, whereby a sharp portion 40 as a cleaning member can be easily formed on the shutter 39, and the shutter mechanism 38 is simple. With this configuration, it is easy to clean the roller using this cleaning member.

  A pair of slide pins 42 protrude from the surface of the left and right slide plate 41 facing the shutter 39, and a pair of cam holes 43 corresponding to the pair of slide pins 42 are formed in the shutter 39 in a predetermined shape. Has been. As shown in FIG. 9, the left and right slide plates 41 are urged in one direction X <b> 1 (right side), and the pair of slide pins 42 are positioned at the right end portion in the cam hole 43. Since the pair of cam holes 43 have a bent shape in which one end (right side) is positioned below the other direction (left side) end, the shutter 39 is urged upward, The disk insertion / removal port 4 is closed.

  In the shutter mechanism 38, when the left and right slide plates 41 are moved in the other direction X2 (left side) with a force larger than the biasing force of the coil spring, the pair of slide pins 42 are moved to the left side in the cam hole 43 as shown in FIG. The shutter 39 is biased downward and opens the disc insertion / removal port 4.

  Further, a pair of guide pins 44 project from the surface of the front plate 1d facing the left and right slide plates 41, while the left and right slide plates 41 have guide holes 45 corresponding to the pair of guide pins 44. It is drilled in the left-right direction. The guide pins 44 are inserted into the guide holes 45 of the left and right slide plates 41 to serve as guides when the left and right slide plates 41 are moved in the left and right directions, and are restricted from moving in other directions. A guide notch 46 corresponding to the guide pin 44 is formed on the lower side of the shutter 39 in the vertical direction. The guide pin 44 is inserted into the guide cutout portion 46 of the shutter 39, serves as a guide when the shutter 39 is moved in the vertical direction, and movement other than the vertical direction is restricted.

  In addition, the shutter 39 has an upper surface 39 a that closes the disk insertion / removal opening 4 with respect to the lower surface 39 b sandwiched between the front plate 1 d and the left and right slide plates 41, about the thickness of the left and right slide plates 41. The lower surface 39b is provided with the above-described pair of cam holes 43 and the guide notch portion 46, and the position of the bent portion. A restriction hole 47 formed in the vertical direction is provided. The restriction hole 47 restricts the movement of a disk push-in mechanism 54 described later.

  That is, a guide pin 58 c is provided at a position corresponding to the restriction hole 47 on the support member 57 of the disk pushing mechanism 54 inserted through the guide hole 45 of the front plate 1 d. The front end of the guide pin 58 c is formed at a position substantially the same as the lower surface 39 b of the shutter 39 and at a position inside the upper surface 39 a of the shutter 39. In the state in which the shutter 39 is closed, the restriction hole 47 is such that the guide pin 58c of the disk pushing mechanism 54 is positioned in the restriction hole 47, and the guide pin 58c is engaged with the shutter 39 forming the hole to guide the restriction hole 47. The movement of the pin 58c in the left-right direction is restricted so that the disk pushing mechanism 54 cannot be moved (locked). When the shutter 39 is lowered to the open position, the guide pin 58c faces the position above the shutter 39 from the restriction hole 47, and the guide pin 58c does not engage the shutter 39 with the guide pin 58c. The movement of the disc pushing mechanism 54 is released in a state in which it can move in the left-right direction of 58c.

  Further, as shown in FIGS. 2 and 4, the shutter mechanism 38 includes a front and rear slide plate 51 that is movable in the direction along the side plates 1 b and 1 c (front and rear direction) on the left end side of the bottom plate 1 a. The front / rear slide plate 51 and the left / right slide plate 41 have a substantially L-shaped connecting lever 52.

  The shutter mechanism 38 pushes the shutter 39 upward by sliding the left and right slide plates 41 in the left direction through the rotating connecting lever 52 by sliding the front and rear slide plates 51 to the back side, Open the disc insertion / removal port 4.

  Further, as shown in FIGS. 2 and 4, the disk insertion / removal device 5 automatically inserts the disk 2 by a predetermined amount after the disk 2 is inserted by the driving roller 30 and the driven roller 31. A disk push-in mechanism 54 that pushes into the disc is provided.

  The disk pushing mechanism 54 has a pair of vertical rollers 55 orthogonal to the pair of drive rollers 30 and the driven roller 31 on the back side of the pair of drive rollers 30 and the driven roller 31. The pair of vertical rollers 55 is rotatably supported by a support shaft 56 via a support member 57.

  The support member 57 is attached to the front plate 1d so as to be movable in the horizontal direction. Specifically, guide pins 58a, 58b, and 58c project from the surface of the support member 57 that faces the front plate 1d, while the front plate 1d has three guide pins 58a and 58b that move in the horizontal direction. , 58c are provided with guide holes 59a, 59b, 59c.

  Further, the support member 57 is provided with a coil spring 60 for urging the pair of vertical rollers 55 toward each other, and is urged by the coil spring 60 toward each other.

  The support member 57 and the vertical roller 55 are moved from the position where the disk 2 inserted by the driving roller 30 and the driven roller 31 described above can be inserted by the driving roller 30 and the driven roller 31 to the inside of the disk storage unit 3 by a predetermined amount. By pushing in, the disk 2 can be placed at an appropriate position on the tray 7.

  Further, the support member 57 and the vertical roller 55 have the above-described restriction hole 47 restricted by the guide pin 58c in a state where the shutter 39 is closed, so that the disk 2 is pushed out accidentally and the disk 2 collides with the shutter 39. Can be prevented.

  The disc insertion / removal device 5 is provided with a disc push-out mechanism (not shown) that pushes the disc 2 placed on the tray 7 to a position where it can be ejected by the drive roller 30 and the driven roller 31 by a predetermined amount.

  The disk insertion / removal device 5 configured as described above enables removal of foreign matter and the like of the driving roller 30 that inserts and ejects the disk 2 without increasing the complexity and size of the structure, and friction on the roller surface. By preventing the decrease in force, the smooth and reliable transport performance of the disk 2 can be maintained over a long period of time, and damage to the disk 2 due to foreign matter adhering to the roller surface is prevented.

  Further, the disk changer device has a plurality of trays 7 on which a plurality of disks 2 are respectively mounted, and has a desired tray among six trays 7 stacked in a disk storage unit 3 in which the plurality of disks 2 are stored. The disc selection means for selecting the disc 2 is provided. In other words, the disk changer device serves as a disk selection unit, and is a tray (hereinafter referred to as “selected tray”) on which a selected disk (hereinafter referred to as “selected disk”) 2 provided in the disk storage unit 3 is placed. 7 and a tray moving means 72 for forming a vertical space for the chuck lever 76 of the pickup device 6 above and below the selection tray 7 while holding the selection tray 7. A pickup lifting / lowering base 73 that moves the pickup device 6 up and down to a position corresponding to the selection tray 7, and a rotation mechanism 74 that rotates the pickup device 6 to a position corresponding to the disk 2 placed on the selection tray 7. With.

  Further, the disk changer device has an inner slider 91 and an outer slider 92 having a plurality of slits in order to drive the disk lifting / lowering base 71, the tray moving means 72, the pickup lifting / lowering base 73 and the rotation mechanism 74. The inner slider 91 and the outer slider 92 are independently driven in the front-rear direction by a driving motor (not shown), and are provided on the above-described disk lifting platform 71, tray moving means 72, pickup lifting platform 73, and rotating mechanism 74. By engaging the pin with the slit, the disk lifting / lowering base 71, the tray moving means 72, the pickup lifting / lowering base 73 and the rotation mechanism 74 can be moved to predetermined positions to perform a desired operation.

  As shown in FIG. 2, the pickup device 6 is mounted on a pickup lifting / lowering base 73 disposed on the back side of the disc storage portion 3, and is paired as a disc holding member when it is rotatably held while sandwiching the selected disc 2. The chuck lever 76 and a spindle motor 77 as a rotational driving means provided on the disk holding member to rotate the selected disk 2 and the signal recording surface of the disk 2 are irradiated with laser light condensed by the objective lens. However, it includes a pickup unit 78 that reproduces signals by reading the return light reflected and returned from the signal recording surface.

  Next, the circuit configuration of the disk changer device described above will be described with reference to the block circuit diagram shown in FIG.

  In the disk changer device, the pickup unit 78 and the spindle motor 77 are driven and controlled by a servo control unit 102 that is controlled based on a command from the signal processing unit 101. Specifically, the servo control unit 102 drives the spindle motor 77 at a predetermined number of rotations (CAV, CLV, etc.) to perform focus control and tracking control of the objective lens of the pickup unit 78, and in the radial direction of the disk 2. Control the position.

  The pickup unit 78 irradiates the signal recording surface of the disk 2 with laser light, detects reflected light, and supplies various signals to the RF amplifier unit 103.

  The RF amplifier unit 103 generates various error signals such as a focus error signal and a tracking error signal, an RF signal, and the like based on the signal from the pickup unit 78 and outputs the error signal to the signal processing unit 101.

  The signal processing unit 101 demodulates the signal read from the RF amplifier unit 103 based on a command from the system controller 100 that controls the entire apparatus, corrects an error, converts the signal to a digital analog signal, and supplies it to an output unit such as a speaker. To do. In addition, the signal processing unit 101 converts a signal stored in a buffer memory 104 (to be described later) or a signal decoded by the MP3 decoder 105 from digital to analog, and supplies it to an output unit such as a speaker.

  The buffer memory 104 temporarily accumulates signals before output from the signal processing unit 101.

  When the signal sent from the RF amplifier unit 103 to the signal processing unit 101 is MP3 or the like based on a command from the system controller 100, the MP3 decoder 105 outputs the demodulated and error-corrected signal to the signal processing unit. Received from 101, converted into a normal reproduction signal, and supplied to the signal processing unit 101.

  The system controller 100 controls the entire apparatus, and controls the signal processing unit 101 and the MP3 decoder 105 as described above and also controls the motor control unit 108 based on a user operation from the operation unit 106. Further, a desired display is performed on the display unit 107 that displays the current state of the apparatus.

  The system controller 100 receives signals from various sensors 112 provided in the apparatus, and controls the signal processing unit 101, the motor control unit 108, the display unit 107, and the like in accordance with the input. The system controller 100 can also exchange various signals via an bus with an external device such as a car navigation system. In addition, when the disk changer device is mounted on a vehicle, it is also possible to receive various data such as travel distance via this bus.

  The motor control unit 108 controls, for example, a roller driving motor 109 that drives the driving roller 30 via the above-described gear group based on commands from the system controller 100 and the signal processing unit 101, and further, the above-described shutter. The shutter drive motor 110 for driving the front / rear slide plate 51 for opening / closing 39 in the front / rear direction is controlled.

  In addition, the motor control unit 108 is illustrated for independently driving an inner slider 91, an outer slider 92, and the like for operating the disk lifting platform 71, tray moving means 72, pickup lifting platform 73, and rotating mechanism 74. Control various motors that do not.

  Here, the above-described motors 109 and 110 and a motor (not shown) can be selectively used in accordance with the configuration of the apparatus. However, in the above-described disk changer apparatus, a roller driving motor is used. 109 and the shutter drive motor 110 can be controlled independently.

  For example, the system controller 100 determines that the disk 2 is not ejected when the sensor 112 detects that the disk 2 exists in the apparatus for a predetermined time or more during the disk ejection operation. In other words, the drive roller 30 and the driven roller 31 detect that the conveying operation in the ejection direction of the disk 2 is not performed well (hereinafter, also referred to as “ejection error”).

  That is, the sensor 112 is a sensor that detects that the disk 2 is inside the apparatus (hereinafter also referred to as “disk presence”). Then, the system controller 100 determines that the disk has been normally ejected if the period in which the “disk presence” signal is input from the sensor 112 from the start of the ejection operation is within a certain period. On the other hand, the system controller 100 determines that a discharge error has occurred when the period during which the “disk is present” signal is input from the sensor 112 from the start of the discharge operation exceeds a certain period.

  The system controller 100 that has detected the ejection error first drives the shutter drive motor 110 via the motor control unit 108 to move the front / rear slide plate 51, and the shutter 39 via the connecting lever 52 and the left / right slide plate 41. Is moved downward. At this time, the sharp portion 40 of the shutter 39 is in contact with the drive roller 30. Next, the system controller 100 drives the roller driving motor 109 via the motor control unit 108, rotates the driving roller 30 in the discharge direction R1 via the gear group, and cleans the driving roller 30. Can do. As described above, the system controller 100 also functions as a detection unit that detects a drawing state of the pair of driving roller 30 and driven roller 31 when the disk 2 is inserted or ejected. In addition to the second regeneration mode, a cleaning mode in which the drive roller 30 is cleaned independently can be performed.

  Here, by detecting a discharge error by a sensor provided inside the apparatus, by detecting a failure in the retracted state of the pair of driving rollers 30 and the driven roller 31, the timing for performing the cleaning operation is detected and the cleaning operation is performed. However, the present invention is not limited to this. That is, for example, the drive roller 30 and the driven roller 31 may be configured to detect that the conveyance operation in the insertion direction of the disk 2 is not performed well, that is, an insertion error. Alternatively, the date and time of the last transport operation performed by the drive roller 30 and the driven roller 31 may be stored, and the cleaning operation may be performed by detecting that a certain time has elapsed since the most recent pull-in operation. . Further, the output level of the RF signal from the pickup unit 78 and the RF amplifier unit 103 is detected, and when this output level falls below a certain value, it is determined that there is a foreign substance or the like inside the apparatus, and the cleaning operation is performed. You may comprise so that it may perform. Further, when the cleaning operation is not performed at the time of insertion / discharge, the number of pull-in times of the pair of driving rollers 30 and the driven roller 31 is detected, and when the number of pull-in times exceeds a certain number of times. A cleaning operation may be performed. Furthermore, the cleaning operation may be performed by detecting the travel distance.

  Next, the overall operation of the disk changer device configured as described above will be described.

  In this disk changer device, any one of the insertion / removal mode for inserting the disk 2 into the disk storage unit 3 or discharging the disk 2 from the disk storage unit 3 and the disk 2 stored in the disk storage unit 3 is selected. There are a reproduction mode in which reproduction is performed by selecting one sheet (selected disk 2) and a cleaning mode in which the roller portion of the disk drive means 5 is cleaned.

  In the insertion / removal mode, when the disk 2 is inserted into the disk storage unit 3, the disk lifting / lowering base 71 is raised, and the selected tray is set to a height that substantially matches the disk insertion / removal port 4. Next, the front / rear slide plate 51 is pushed in the direction of arrow M1 in FIG. 2, which is the back side, and the shutter 39 is pushed down in the direction of arrow M4 in FIG. Thereby, the disk insertion / removal port 4 is opened. At this time, the connecting lever 52 is rotated in the direction of arrow M2 in FIG. 2, and the left and right slide plates 41 are slid in the direction of arrow M3 in FIG.

  Next, when the disk 2 is inserted from the opened disk insertion / removal opening 4, a sensor (not shown) arranged at the front center of the shutter 39 detects the entry of the disk 2 and is driven by the drive motor of the disk insertion / removal device 5 described above. The roller 30 is rotationally driven in the insertion direction. As a result, the disc 2 sandwiched between the pair of drive rollers 30 and the driven roller 31 is inserted into the disc storage portion 3.

  Here, the disk 2 inserted from the disk insertion / removal port 4 is moved from the position where it can be inserted by the pair of driving rollers 30 and the driven roller 31 to the inside of the disk storage portion 3 by a predetermined amount by the disk pushing mechanism 54 described above. It is pushed. As a result, the disk 2 is placed on the second tray 7 and is held on the tray 7 by the pressing piece 11 a of the leaf spring 11.

  In addition, when the disk 2 is separated from the pair of driving rollers 30 and the driven rollers 31, a limit switch (not shown) is operated to stop the rotational driving of the driving rollers 30, and the front / rear slide plate 51 is moved to the front side. The shutter 39 is pushed up via the connecting lever 52 and the left and right slide plates 41. Thereby, the disk insertion / removal port 4 is closed.

  As described above, the disk 2 can be inserted into the selected tray 7.

  On the other hand, in the insertion / removal mode, when the disk 2 is ejected from the disk storage unit 3, the disk lifting / lowering base 71 is raised, and the selection tray 7 is set to a height substantially coincident with the disk insertion / removal opening 4. Next, the front / rear slide plate 51 is pushed to the back side, and the shutter 39 is pushed down via the connecting lever 52 and the left / right slide plate 41. Thereby, the disk insertion / removal port 4 is opened.

  Next, the disk 2 is pushed out to the disk insertion / removal port 4 side by a predetermined amount by the disk pushing mechanism described above.

  Here, the drive roller 30 of the disk insertion / removal device 5 is driven to rotate in the discharge direction at the same time as the “discharge” button is pressed. As a result, the disk 2 sandwiched between the pair of drive rollers 30 and the driven roller 31 is discharged to the outside of the disk storage unit 3. When a part of the back side of the disk 2 is sandwiched between the pair of driving rollers 30 and the driven roller 31, the driving roller 30 is stopped by a limit switch (not shown). Thereby, it is possible to prevent the disk 2 from being dropped when ejected.

  Next, when the disk 2 is manually extracted from the disk insertion / removal opening 4, a sensor (not shown) senses that the disk 2 has been ejected, and the disk insertion / removal opening 4 is closed.

  As described above, the disk 2 can be ejected from the second tray 7.

  In the reproduction mode, the pickup lift 73 is raised, and the height of the pickup lift 73 is set at a position corresponding to the selected tray. Next, an operation for forming a space above and below the selection tray 7 while holding the selection tray 7, an operation for the pair of chuck levers 76 to be rotated in the radial direction of the disk 2 by the rotation mechanism 74, and nipping switching An operation is performed in which a pair of chuck levers 76 clamp the center hole 2a of the selection disk 2 placed on the selection tray 7 by the mechanism. The selection tray 7 and the selection disk 2 held between the chuck levers 76 are separated.

  Then, the signal is reproduced while the optical pickup unit 78 described above moves in the radial direction with respect to the selection disk 2 rotatably held by the pair of chuck levers 76.

  For example, as described above, the cleaning mode is performed when the system controller 100 serving as the detection unit detects a discharge error that is a malfunction of the retracted state of the driving roller 30 and the driven roller 31.

  In the cleaning mode, when the shutter driving motor 110 is driven, the front / rear slide plate 51 is pushed to the back side, and the shutter 39 is pushed down via the connecting lever 52 and the left / right slide plate 41. As a result, the disk insertion / removal port 4 is opened from the state shown in FIG. 6 to the state shown in FIG. 5, and the sharp portion 40 of the shutter 39 is in contact with the drive roller 30.

  Next, when the roller driving motor 109 is driven, the driving roller 30 is rotationally driven in the direction of arrow R1 in FIG. 5 through the gear group described above. Thus, by causing the driving roller 30 to idle in a state where the sharp portion 40 of the shutter 39 is in contact, foreign matters such as dust adhering to the surface of the driving roller 30 can be removed and kept clean.

  As described above, by performing the above-described operation, foreign matter or the like attached to the surface of the drive roller 30 can be removed, and the surface of the drive roller 30 can be maintained in an optimum state for transporting the disc. Prevents transport problems when inserting or discharging.

  As described above, the disk loading mechanism and the disk changer device to which the present invention is applied enable the removal of foreign matters and the like of the roller for inserting and discharging the disk-shaped recording medium without complicating the configuration and increasing the size. In addition, smooth conveyance of the disc-shaped recording medium can be realized over a long period of time.

  In addition, the disk loading mechanism and the disk changer device to which the present invention is applied are provided with a roller cleaning mechanism in an independently drivable state, and space saving and cost reduction are realized.

  In the above description, the disk selection unit has a plurality of trays on which a plurality of disks are respectively mounted, and a disk storage unit that stores a plurality of disks, and a disk selection unit that selects any one of the plurality of disks. Although an example of a disk changer device provided with means has been described, the present invention is also applicable to a disk drive device that stores only one disk and records and / or reproduces on this disk.

  The present invention is not limited to the purpose of reproducing audio, such as the above-described disk changer device, and can be applied to an apparatus that records audio and an apparatus that records and / or reproduces video. It is.

It is a perspective view which shows the external appearance of the apparatus main body of the disc changer apparatus to which this invention is applied, and is a perspective view when a shutter is an open state. It is a disassembled perspective view which shows the internal structure of the apparatus main body of a disk changer apparatus. It is a disassembled perspective view which shows the structure of a disk storage part. It is the principal part perspective view which looked at the disk insertion / extraction apparatus from the inside of a housing | casing. It is a figure which shows the structure of the roller and shutter mechanism which comprise a disk insertion / extraction apparatus, and is sectional drawing when a shutter is an open state. It is a figure which shows the structure of the roller and shutter mechanism which comprise a disk insertion / extraction apparatus, and is sectional drawing when a shutter is a closed state. It is a figure which shows the other example of the cleaning member provided in the shutter which comprises a disk insertion / extraction apparatus, (a) is sectional drawing of a shutter and a cleaning member, (b) is a plane of a shutter and a cleaning member. FIG. It is sectional drawing which shows the further another example of the cleaning member provided in the shutter which comprises a disk insertion / extraction apparatus. It is a perspective view which shows the external appearance of the apparatus main body of a disk changer apparatus, and is a perspective view when a shutter is a closed state. It is a block circuit diagram of a disk changer device.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Apparatus main body, 2 Disc, 3 Disc storage part, 4 Disc insertion / extraction port, 5 Disc insertion / removal device, 6 Pickup device, 7 Disc tray, 9 Resin member, 10a, 10b Pin, 11 Leaf spring, 11a Pressing piece part, 30 Drive roller, 31 driven roller, 38 shutter mechanism, 39 shutter, 40 sharp part, 41 left and right slide plate

Claims (10)

A pair of rollers provided with a predetermined gap and inserting and discharging a disc-shaped recording medium with respect to the storage portion by rotating at least one of them;
A shutter provided on the outside of the pair of rollers to open and close the predetermined gap;
Detecting means for detecting a pull-in state at the time of insertion or ejection of the disk-shaped recording medium of the pair of rollers,
The shutter is provided with a cleaning member that selectively contacts one roller and cleans the roller surface when the shutter opens or closes the predetermined gap.
A disk loading mechanism for cleaning the surface of the roller by opening and closing the shutter and bringing the cleaning member into contact with the one roller based on the detection output of the detection means.   The surface of the roller is cleaned by bringing the cleaning member into contact with the one roller and rotating the one roller in accordance with the detection output of the detection means. 1. The disk loading mechanism according to 1.   The disk loading mechanism according to claim 1, wherein the detection means detects a malfunction in a retracted state of the pair of rollers.   2. The disk loading mechanism according to claim 1, wherein the detecting means detects that a predetermined time has elapsed since the most recent pulling operation of the pair of rollers.   2. The disk loading mechanism according to claim 1, wherein the detecting means detects an output level of a recording and / or reproducing unit that performs recording and / or reproduction on the disk-shaped recording medium inserted by the pair of rollers.   The disk loading mechanism according to claim 1, wherein the detection means detects the number of pull-in times of the pair of rollers.   The disk loading mechanism according to claim 1, wherein the cleaning member is a sharp portion provided integrally with the shutter.   The disk loading mechanism according to claim 1, wherein the cleaning member is a knurl provided integrally with the shutter.   2. The disk loading mechanism according to claim 1, wherein the cleaning member is a member made of flocked or rubber affixed to a surface of the shutter facing the one roller. A storage section for storing a disk-shaped recording medium;
A recording and / or reproducing unit for recording and / or reproducing a signal with respect to a disk-shaped recording medium stored in the storage unit;
A disk loading mechanism for inserting a disk-shaped recording medium into the storage section or discharging the disk-shaped recording medium from the storage section,
The disk loading mechanism is provided with a predetermined gap, and a pair of rollers for inserting and discharging a disk-shaped recording medium with respect to the storage portion by rotating at least one of the disk loading mechanism,
A shutter provided on the outside of the pair of rollers to open and close the predetermined gap;
Detecting means for detecting a pull-in state at the time of insertion or ejection of the disk-shaped recording medium of the pair of rollers,
The shutter is provided with a cleaning member that selectively contacts one of the rollers when the shutter opens or closes the predetermined gap.
A disk drive device that cleans the surface of a roller by opening and closing the shutter based on the detection output of the detection means to bring the cleaning member into contact with the one roller.

Images