JP3916409B2 - Disc loading device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a disk loading apparatus for loading a disk.
[0002]
[Prior art]
  2. Description of the Related Art Conventionally, for example, in a disc player such as a compact disc for music playback, as described in Japanese Patent Application Laid-Open No. 7-220353, a slot-in for inserting and removing a disc from a disc insertion slit on the front surface of the main unit. One using a disk loading device of the type is known.
[0003]
  In this loading device, the disc inserted from the disc insertion slit on the front surface of the main body is detected by an optical sensor or the like, so that the loading motor is operated and the disc transfer roller arranged facing the disc insertion slit is driven to rotate. And then, by pushing the disc detection pin with the disc transferred into the main body, the loading ring arranged rotatably on the base plate in the main body starts to rotate, In the rotation process of the loading ring, the disk transfer roller is separated from the disk, the disk is clamped so as to be rotationally driven, and the loading motor is stopped when the loading ring is completely rotated, thereby completing the loading of the disk. Further, when the disc is ejected, the disc is ejected in the reverse operation of the loading operation by reversing the loading motor.
[0004]
[Problems to be solved by the invention]
  However, in the conventional loading apparatus, a loading member is provided to separate the disk transfer roller from the disk or clamp the disk. However, since this loading member overlaps with the base plate in the main body, Since the thickness in the vertical direction is large and it is difficult to reduce the thickness, and the loading member rotates on the base plate in the main body, there is a problem that the drive mechanism including the loading member becomes large.
[0005]
  The present invention has been made in view of the above points, and an object of the present invention is to provide a disk loading apparatus that can be thinned and that can downsize a drive mechanism including a loading member.
[0006]
[Means for Solving the Problems]
  The disc loading device according to claim 1 is provided with a main body having an insertion / removal port through which a disc is inserted / removed and a disk loading portion into which the disc is loaded through the insertion / removal port,And a loading motor that drives the end of the gear train opposite to the insertion / removal port of the main body.A drive unit is provided to be movable between an ejection corresponding position and a loading corresponding position along one side of the main body,A rack that can mesh with the middle of the gear train of the drive unit,The drive unitBy meshing in the middle of the gear trainThe drive unit is moved by the drive force being transmitted and moved to the eject corresponding position.Middle of the gear trainFromOffA loading member from which the transmission of the driving force is released;A detection member that rotates when the peripheral edge of the disk moved to the disk loading portion contacts and rotates, and moves away from the disk by the movement of the loading member to the loading corresponding position, and interlocks with the rotation of the detection member. A trigger plate that moves in parallel with the loading member alongside the rack of the loading member and a position that meshes with the middle of the gear train of the drive unit and a position that is separated from the middle of the gear train of the drive unit. The detection member is pivotally supported so as to be able to swing, so that the detection member is rotated by contact with the disk, so that the detection member swings to a position engaging with the middle of the gear train of the drive unit via the trigger plate. By transmitting the driving force from the middle of the gear train, the loading member at the ejection corresponding position is moved, and the rack of this loading member is engaged with the middle of the gear train of the driving unit. And the rack lever to be,The loading member is in contact with the disk in a state corresponding to the ejection corresponding position, and the disk isFrom the end of the gear trainDrivePower transmissionTo move the loading / unloading port between the loading / unloading port and the disk loading unit, and to release the disk clamp while the loading member is positioned at the ejection corresponding position. And a clamping portion for clamping the disk rotatably by moving the loading member to the loading corresponding position.
[0007]
  By providing a drive unit and a loading member on one side of the main body, the drive unit and the loading member do not overlap each other between the main body and the disk loading unit, and the main body can be thinned. It becomes. Furthermore, since the loading member moves along one side of the main body, the drive mechanism including the loading member can be miniaturized.. BookThe gear train of the drive unit is arranged along one side that intersects the body insertion / extraction port, the end of the gear train on the opposite side to the insertion / extraction port is driven by a loading motor, and loading from the end of the gear train on the insertion / extraction port side By transmitting the driving force to the mechanism and transmitting the driving force from the middle of the gear train to the loading member, the driving force can be reliably transmitted from the driving unit to each mechanism, and the driving unit can be miniaturized. Become.The detection member of the detection unit comes into contact with the peripheral edge of the disk to be moved to the disk loading unit to detect and position the disk, and the detection member moves away from the disk by moving the loading member to the loading corresponding position. Allow rotation of
[0008]
  Claim2The disk loading device described isA main body having an insertion / removal port through which a disk is inserted / removed and a disk loading portion into which a disk is loaded through the insertion / removal opening, a gear train arranged along one side of the main body, and a gear opposite to the insertion / removal opening of the main body A drive unit having a loading motor for driving the end of the row, and is movable between an ejection corresponding position and a loading corresponding position along one side of the main body, and meshes with the middle of the gear train of the drive unit The rack has an enabling rack, and when the rack meshes with the middle of the gear train of the driving section, the driving force is transmitted and moved, and the movement to the eject corresponding position disengages from the middle of the gear train of the driving section. The loading member from which the transmission of the driving force is released and the peripheral edge of the disk moved to the disk loading portion are in contact with each other and rotate. A detecting member away movement from the disk in movement to Ingu corresponding position, in conjunction with the rotation of the sensing member The trigger plate moves, and the loading member swings alongside the rack of the loading member so as to be engaged with the middle of the gear train of the driving unit and the position separated from the middle of the gear train of the driving unit. The detection member is pivotally supported so that the detection member is rotated by contact with the disk, and thereby swings to a position where the detection member meshes with the middle of the gear train of the drive unit via the trigger plate. A rack lever that moves the loading member at the ejection corresponding position by transmission of the driving force from the middle of the row and meshes the rack of the loading member with the middle of the gear row of the driving portion;A pair of guide pins disposed on both sides of the insertion / removal opening of the main body so as to be openable and closable with a space between each other, and having a pair of guide pins that are in contact with the disk inserted / removed in the insertion / removal opening and are expanded and moved according to the disk diameter Detection that detects the movement of the disk to the disk loading section in conjunction with the guide member and the expansion movement according to the disk diameter of the pair of guide membersElementThe switching member for switching the detection position and the center of the disk to be inserted into and removed from the insertion / removal port are positioned closer to the disk loading portion than the guide pin, and the pair of guide members are set to the expanded position according to the disk diameter. Lock means to hold andA disc type detection switch for detecting a disc type from the position of the guide member in a state where the center of the disc to be inserted into and removed from the insertion / removal port is located closer to the disc loading portion than the guide pin, and the insertion / removal port of the main body A pair that is arranged to face both sides of the disc and to be able to open and close in conjunction with each other, and abuts on the periphery of the disc loaded in the disc loading section and moves to expand according to the disc diameter. And a plurality of positioning pins provided on one of the positioning members on the loading member side, and the one of the positioning members is moved by moving the loading member toward the loading corresponding position. One positioning pin corresponding to the position is engaged, and the loading member is moved to the loading corresponding position. The pair of positioning members through a positioning pin is provided a cam groove of separating movement from the diskIs.
[0009]
  AndBy providing the driving unit and the loading member on one side of the main body, the driving unit and the loading member do not overlap each other in a plane between the main body and the disk loading unit, and the main body can be thinned. . Furthermore, since the loading member moves along one side of the main body, the drive mechanism including the loading member can be miniaturized. The gear train of the drive unit is arranged along one side that intersects the insertion / removal port of the main unit, the end of the gear train on the side opposite to the insertion / removal port is driven by a loading motor, and loading from the end of the gear train on the insertion / removal side By transmitting the driving force to the mechanism and transmitting the driving force from the middle of the gear train to the loading member, the driving force can be reliably transmitted from the driving unit to each mechanism, and the driving unit can be miniaturized. Become. The detection member of the detection unit comes into contact with the peripheral edge of the disk to be moved to the disk loading unit to detect and position the disk, and the detection member moves away from the disk by moving the loading member to the loading corresponding position. Allow rotation of
[0010]
  further,Detection that detects the movement of the disk to the disk loading section in conjunction with the expansion movement of the pair of guide members in accordance with the diameter of the disk inserted into the insertion / removal opening of the main body. The switching position is switched by the switching member, and while the disk is located in the main body, the pair of guide members are held by the locking means at the expanded position according to the disk diameter, so that the disks having different disk diameters can be obtained. It can be handled and loaded reliably.. BookA pair of positioning members that open and close in conjunction with each other according to the disc diameter are in contact with each other to reliably position the disc loaded in the body disc loading section, and the loading member can be moved toward the loading corresponding position. Of the plurality of positioning pins provided on one positioning member, one positioning pin corresponding to the moving position of the positioning member engages with the cam groove of the loading member, and the cam groove and the loading member move to the loading corresponding position. By moving the pair of positioning members away from the disk via the positioning pins and allowing the disk to rotate, it is possible to handle disks with different disk diameters and reliably position them..
[0011]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0012]
  The disc handled by the loading apparatus of the present embodiment is, for example, a compact disc for music reproduction, and this compact disc includes an album type 12 cm disc and a single type 8 cm disc.
[0013]
  First, FIG. 2 shows a perspective view of a disk drive device to which the loading device is applied.
[0014]
  This disk drive device has a main body 1, a horizontally long slit-shaped insertion / removal port 2 for inserting / removing a disk is formed on the front surface of the main body 1, and a disk is loaded inside the main body 1 through the insertion / removal port 2 for playback. A disc loading unit 3 is formed. Hereinafter, the insertion / removal port 2 side of the main body 1 will be described as the front surface, the side opposite to the insertion / removal port 2 as the rear surface, one side intersecting the insertion / removal port 2 as the right side surface, and the other side as the left side surface.
[0015]
  Next, FIG. 1 shows a perspective view of the disc drive apparatus in an exploded state.
[0016]
  The main body 1 has a lower base 4, an upper top plate 5, and a frame body 6 disposed between the base 4 and the top plate 5.
[0017]
  Reproduction having on the upper surface of the base 4 a turntable 11 for rotationally driving the disk loaded in the disk loading unit 3 and a pickup 12 for optically reading information stored on the disk while moving in the radial direction of the disk. A unit 13 is provided. The turntable 11 has a magnetic body that can be attracted by the magnetic force of the magnet.
[0018]
  A clamp pressing plate 15 of a clamp portion 14 that clamps the disk rotatably with the turntable 11 is attached to the frame body 6. The clamp pressing plate 15 is attached to the support portions 17 and 18 on both sides of the frame 6 so as to be swingable up and down by hinge portions 16 formed on both sides near the rear portion. In addition, a disc-shaped pressing portion 19 is attached between the turntable 11 and the disc to rotatably clamp the disc. The pressing portion 19 is supported so as to be freely movable in the vertical and horizontal directions with respect to the clamp pressing plate 15, and has a magnet (not shown) that holds the disk between the turntable 11 by attracting the turntable 11 with a magnetic force. is doing. The clamp pressing plate 15 is constantly urged in the downward clamping direction by a spring (not shown) disposed between the clamp body 15 and the frame body 6.
[0019]
  At the lower right edge of the clamp pressing plate 15, this clamp pressing plate 15TheA push-up portion 15a for pushing up is formed, and stoppers 15b for positioning and stopping a 12 cm disc at the reproduction position of the disc loading portion 3 are formed at two positions on the rear edge.
[0020]
  The top plate 5 and the frame 6 are provided with a main configuration of a disc loading device 21 that loads or ejects a disc from the disc loading section 3 of the main body 1. The main structure of the disc loading device 21 includes a clamp portion 14, a disc guide portion 22 that is operated according to the disc diameter of the disc inserted into and removed from the insertion / removal port 2 of the main body 1, and the disc loading to the disc loading portion 3. Detection unit 23 for detecting movement, driving unit 24 provided on the right side of the main body 1, loading plate 25 as a loading member operated by driving of the driving unit 24 in conjunction with detection of the detecting unit 23, driving of the driving unit 24 Includes a loading mechanism 26 that moves the disc between the insertion / removal port 2 and the disc loading unit 3, a positioning mechanism 27 that positions the disc loaded in the disc loading unit 3 at a reproduction position that can be clamped by the clamp unit 14, and the like. It is.
[0021]
  Next, FIG. 3 shows a perspective view through the top plate of the disk drive device.
[0022]
  On the lower surface of the top plate 5, a disc guide portion is operated in accordance with the disc diameter of a disc to be inserted into and removed from the insertion port 2 of the main body 1 (hereinafter, a 12 cm disc is referred to as a disc D12, and an 8 cm disc is referred to as a disc D8). 22 and a detection unit 23 that detects movement of the disc to the disc loading unit 3 in conjunction with the disc guide unit 22.
[0023]
  The disc guide portion 22 has guide plates 31 and 32 as a pair of guide members arranged on both the left and right sides facing the insertion / removal port 2, and the guide plates 31 and 32 have the support shafts 33 and 34 as fulcrums, respectively. It is rotatably attached to the lower surface of the top plate 5. Each of the guide plates 31 and 32 is provided with guide pins 35 and 36 extending vertically at the end facing the insertion / removal port 2, and the pair of guide pins 35 and 36 can be opened / closed with respect to each other and inserted / removed into / from the insertion / removal port 2. It is arranged so as to abut against the disc to be expanded and moved in accordance with the disc diameter.
[0024]
  A tension spring 37 that urges the pair of guide pins 35 and 36 in a closing direction is stretched between the pair of guide plates 31 and 32. These guide plates 31 and 32 are formed with circular guide grooves 38 and 39 centering on the support shafts 33 and 34, respectively. These guide grooves 38 and 39 protrude from the feed plate 111 which is a part of the loading mechanism 26. By engaging the provided guide portions 113 and 114, the rotation range of the pair of guide plates 31 and 32 is regulated including the position in the direction in which the pair of guide pins 35 and 36 close to each other.
[0025]
  A cam groove 40 is formed in a protruding portion protruding from the one guide plate 31 toward the other guide plate 32, and a cam is formed in the protruding portion protruding from the other guide plate 32 toward the one guide plate 31. A cam pin 41 that movably engages in the groove 40 is provided. When the cam groove 40 and the cam pin 41 are engaged with each other, for example, when a small-diameter 8 cm disk D8 is inserted to the left of the center of the insertion / removal port 2 and only the left guide pin 35 is expanded, The expansion movement of the left guide pin 35 is restricted at a predetermined midway position, guides the disk D8 in the insertion process so that it is inserted to the right side of the insertion / extraction port 2, that is, the center, and the disk D8 is centered in the insertion / extraction port 2 When the guide pins 35 and 36 are both expanded and moved substantially simultaneously, the guide pins 35 and 36 are allowed to expand in accordance with the diameter of the disk D8.
[0026]
  An insertion detection switch actuating portion 42 and a disc type detection switch actuating portion 43 are formed at the front edge of the left guide plate 31, and between the insertion detection switch actuating portion 42 and the disc type detection switch actuating portion 43. An eject operating part 43a is formed at the position. An opening 44 is formed in the top plate 5 so as to face the front edge portion of the left guide plate 31. The opening 44 has an insertion detection switch operating portion of the guide plate 31 that is rotated in accordance with the insertion of the disk. An insertion detection switch 45 operated by 42 and a disk type detection switch 46 operated by a disk type detection switch operation unit 43 of the guide plate 31 rotated in accordance with the insertion of the 12 cm disk D12 are provided. The disc type detection switch 46 is also operated by the eject operation unit 43a.
[0027]
  A lock pin 47 protrudes from the lower surface of the left edge of the left guide plate 31. On the left side of the lower surface of the top plate 5, a lock lever 48 as a lock means is disposed so as to be swingable with a support shaft 49 at the rear end as a fulcrum. The lock lever 48 is urged toward the inside of the disk loading portion 3 in the counterclockwise direction of FIG. 3 by a tension spring 50 stretched between the lock plate 48 and the top plate 5. The pin 52 engages with the long hole 51 provided in an arc shape, and the swing range is restricted. At the front end of the lock lever 48, a contact pin 53 that allows contact with the peripheral edge of the 12 cm disk D12 or the positioning member 125 of the loading mechanism 26 is suspended downward, and in response to insertion of the 12 cm disk D12. Thus, a lock groove 54 is formed so that the lock pin 47 can be engaged when the guide plate 31 is rotated clockwise in FIG.
[0028]
  The detection unit 23 is arranged on the lower right side of the lower surface of the top plate 5 and includes a sensor plate 61 as a switching member, a sensor arm 62 and a trigger plate 63 as detection members.
[0029]
  The sensor plate 61 has front and rear pins 64 and 65 engaged with front and rear guide grooves 66 and 67 provided on the top plate 5 in the front and rear direction, and rear side guide pieces 68 provided on the top plate 5 in the front and rear direction. The guide groove 69 is engaged with the edge of the guide groove 69 and is slidably attached to the lower surface of the top plate 5 along the front-rear direction. A front end of the sensor plate 61 is rotatably connected to the right guide plate 32 by a connecting shaft 70, and a rear end is rotatably connected to the sensor arm 62 by a support shaft 71.
[0030]
  The sensor arm 62 has a middle portion supported rotatably on the lower surface of the rear end of the sensor plate 61 by a support shaft 71, and a guide portion 72 that is guided by abutting the leading edge of the disc loaded in the disc loading portion 3 at one end. The other end of the trigger plate 63 is rotatably connected to the rear end of the trigger plate 63 by a connecting shaft 73. The sensor arm 62 constitutes a part of the positioning mechanism 27.
[0031]
  The trigger plate 63 engages with front and rear guide grooves 76 and 77 provided in the front-rear direction on the top plate 5 with front and rear pins 74 and 75, and is attached to the lower surface of the top plate 5 so as to be slidable along the front-rear direction. ing. The front end side of the front guide groove 76 is formed so as to guide the front end side of the trigger plate 63 to the left via the front pin 74 when the trigger plate 63 moves forward. A tension spring 78 that urges the trigger plate 63 rearward is stretched between the trigger plate 63 and the top plate 5. In the vicinity of the front end of the right side portion of the trigger plate 63, a protruding piece 79 is provided so as to be inclined downward.
[0032]
  Next, FIG. 4 shows a perspective view of the frame of the disk drive device, FIG. 5 shows a perspective view of the disassembled state mainly composed of the structure incorporated in the frame of the disk drive device, and FIG. 6 shows the disk drive device. FIG. 7A is an explanatory diagram of a state where the driving force is not transmitted to the loading member, FIG. 7B is an explanatory diagram of a state where the driving force is transmitted to the loading member, and FIG. The perspective view of the decomposition | disassembly state of the top plate and feed plate of an apparatus is shown.
[0033]
  The frame body 6 is formed in a rectangular frame shape from a base plate portion 81, a left side surface portion 82, a right side surface portion 83, and a rear rear surface portion 84 that are formed in an approximately L shape from the lower side region to the right side region of the insertion / removal port 2. The drive unit 24 and the loading plate 25 are disposed on the right side surface portion 83 of the frame body 6, and the loading mechanism 26 and a part of the positioning mechanism 27 are disposed on the front substrate portion 81 of the frame body 6. Has been.
[0034]
  The drive unit 24 has a gear train 87 in which a plurality of gears 86a, 86b, 86c, 86d, 86e, 86f are arranged in mesh with each other, and the gears 86a to 86f of the gear train 87 are gear plates 88. Are respectively rotatably supported by shafts and disposed outside the right side surface portion 83 of the frame 6. A loading motor 89 is attached to the right rear side of the frame body 6, and a gear 86 a at the rear end of the gear train 87 is engaged with a worm gear 90 attached to a drive shaft of the loading motor 89. The gears 86a to 86f are rotated.
[0035]
  The loading plate 25 has a substantially L-shaped cross section having a substantially horizontal base portion 92 disposed on the substrate portion 81 of the frame body 6 and a substantially vertical upright portion 93 disposed inside the right side surface portion 83. Is formed. The front and rear guide pieces 94 projecting from the base 92 of the loading plate 25 engage with the front and rear guide grooves 95 provided in the front-rear direction on the substrate 81 and are slidably attached in the front-rear direction. A tension spring (not shown) is stretched between the frame 6 and the frame body 6 and is urged rearward. The position moved forward is the ejection corresponding position of the loading plate 25, and the position moved forward is the disk reproduction. The loading plate 25 is in a loading corresponding position.
[0036]
  A long hole 96 is formed in the upright portion 93 of the loading plate 25 along the front-rear direction, and a rack 97 is formed on the upper edge of the long hole 96 except for a part of the front end. A gear 86d of a gear train 87 capable of meshing with the rack 97 is inserted into the long hole 96. However, as shown in FIG. The gear 86d does not mesh with the gear 86d.
[0037]
  A rack lever 98 is pivotally supported on the outer surface of the rising portion 93 of the loading plate 25 so as to be able to swing in the vertical direction with a fulcrum portion 99 at the rear end as a fulcrum, and is attached so as to swing upward by a spring 100. It is energized. As shown in FIG. 6, a rack 101 is formed on the lower edge of the rack lever 98. The rack 101 has the same pitch as the rack 97 and has one tooth 101 a that is one tooth ahead of the front end position of the rack 97 teeth. Then, in a state where no disk is loaded in the disk loading unit 3 and the trigger plate 63 is moved rearward, as shown in FIG. 6 (a), the rack lever 98 is swung upward, and the gear 86d. Is configured to idle, and when the disc is loaded in the disc loading portion 3 and the trigger plate 63 is moved forward, as shown in FIG. The rack lever 98 is pushed down, the rack 101 of the rack lever 98 overlaps with the rack 97 of the loading plate 25 in the same phase and the rack 101 of the rack lever 98 is engaged with the gear 86d, and the rotational driving force of the gear 86d is applied to the loading plate 25. Then, the loading plate 25 is moved from the rear ejection corresponding position to the front loading corresponding position. At the upper edge of the rack lever 98, an abutting portion 102 is formed on which the protruding piece 79 of the trigger plate 63 abuts and is pushed down.
[0038]
  At the front end of the rising portion 93 of the loading plate 25, an inclined loading release portion 103 is formed that releases the movement of the disk by the loading mechanism 26 when the loading plate 25 moves to the loading corresponding position. At the rear end of the base portion 92 of the loading plate 25, a clamp releasing portion that lifts the push-up portion 15a of the clamp pressing plate 15 and releases the disc clamp by the clamp portion 14 with the loading plate 25 moved to the rear ejection corresponding position. 104 is formed.
[0039]
  A cam groove 105 is formed in the front end of the base 92 of the loading plate 25 along substantially the front-rear direction. The cam groove 105 is formed in a groove shape on the upper surface side of the base 92, and an introduction portion 105a is formed at the front end so that both sides expand forward, and a guide groove portion 105b extending rearward from the introduction portion 105a is formed. An actuating groove 105c that is formed and bent in a crank shape to the right from the rear end of the guide groove 105b is formed.
[0040]
  A switch actuating piece 106 projects from the left side of the base 92 of the loading plate 25, and is actuated by the switch actuating piece 106 when the loading plate 25 reaches the front loading corresponding position on the base plate portion 81 of the frame 6. A loading corresponding position detection switch 107 is provided.
[0041]
  Further, the loading mechanism 26 includes a feed plate 111 attached to the lower surface of the top plate 5 shown in FIG. 7 and a loading roller 112 that opposes the feed plate 111 and holds the disk between the feed plate 111 and conveys the disc. Have.
[0042]
  The feed plate 111 constitutes the upper surface of the insertion / removal port 2, and a guide surface for guiding the sliding of the disk sandwiched between the loading roller 112 is formed on the lower surface facing the loading roller 112. On the upper surface of the feed plate 111, guide portions 113, 114 that engage with the guide grooves 38, 39 of the respective guide plates 31, 32 protrude.
[0043]
  The loading roller 112 is configured by passing a shaft through a rubber roller, and both ends of the shaft are rotatably attached to bearing portions 116 on both sides of the roller support plate 115 shown in FIG. Support portions 117 are formed at both ends of the roller support plate 115, and each of the support portions 117 is attached so as to be able to regulate swinging by a support shaft 118 protruding inside the side surface portions 82 and 83 on both sides of the frame body 6. ing. Cutouts 119 are formed at both ends of the roller support plate 115, and the loading roller 112 is fed by a spring 120 (shown in FIG. 8B) disposed between the cutout 119 and the frame body 6. It is urged to swing upwards close to 111. At the right end of the shaft of the loading roller 112, a gear 121 meshed with the gear 86f of the gear train 87 in a state where the loading roller 112 is swung upward is fixed, and the loading plate 25 is moved to the loading corresponding position. A shaft portion 122 that is pushed downward by the loading release portion 103 when it moves is formed.
[0044]
  As shown in FIGS. 3 and 4, the positioning mechanism 27 includes two stoppers 15b of the clamp pressing plate 15, a sensor arm 62, and a pair of positioning members 125 disposed on both sides facing the insertion / removal port 2. The 12 cm disk D12 has two stoppers 15b of the clamp pressing plate 15, the sensor arm 62, and a pair of positioning members 125, 126 which are in contact with the peripheral edge of the disk D12, and the 8 cm disk D8. Is configured so that the sensor arm 62 and the pair of positioning members 125 and 126 are positioned in contact with the periphery of the disk D8.
[0045]
  The positioning members 125 and 126 have contact portions 127 and 128 that contact the periphery of the disc loaded into the disc loading portion 3, and can be rotated with respect to the frame body 6 by the support shafts 129 and 130. It is pivotally supported. An interlocking member 131 is disposed between the positioning members 125 and 126 so as to be movable in the left-right direction, and racks 132 are formed at both ends of the interlocking member 131 (only the left rack 132 is shown in FIG. 4). ). The left rack 132 of the interlocking member 131 is engaged with the front side of the gear 133 attached to the support shaft 129 of the left positioning member 125, and the right rack of the interlocking member 131 is attached to the support shaft 130 of the right positioning member 126. The gear 134 is meshed with the rear side. When the interlocking member 131 moves in the right direction, the contact portions 127 and 128 of the positioning members 125 and 126 on both sides are rotated in the opening direction in conjunction with each other, while the interlocking member 131 moves in the left direction. In this case, the contact portions 127 and 128 of the positioning members 125 and 126 on both sides are rotated in a closing direction in conjunction with each other. In other words, the positioning members 125 and 126 on both sides are rotated in accordance with the disc diameter of the disc when the abutting portions 127 and 128 abut against the peripheral edge of the disc when the disc is loaded. Located in position. Note that the positioning members 125 and 126 on both sides are urged in a direction in which the contact portions 127 and 128 close together in conjunction with a spring (not shown).
[0046]
  In the positioning member 125 on the left side, when a 12 cm disc D12 is loaded in the disc loading portion 3, the abutment portion 127 that is opened and rotated in accordance with the disc diameter contacts the lock lever 48 shown in FIG. The pin 53 is engaged and can be pushed leftward.
[0047]
  On the lower surface of the right positioning member 126, a positioning pin 135 for a 12 cm disc D12 and a positioning pin 136 for an 8 cm disc D8 are projected.
[0048]
  Then, when loading the 12 cm disc D12, the positioning members 125 and 126 on both sides are rotated in conjunction with each other according to the disc diameter of the disc D12, and the 12 cm disc D12 is rotated at the rotating position of the right positioning member 126. The positioning pin 135 is positioned in front of the cam groove 105 of the loading plate 25. In this positional relationship, by moving the loading plate 25 toward the loading-corresponding position, the positioning pin 135 for the 12 cm disk D12 is engaged in the guide groove portion 105b through the introduction portion 105a of the cam groove 105 of the loading plate 25, and the guide While the positioning pin 135 is engaged in the groove portion 105b, the positioning members 125 and 126 on both sides are held in contact with the 12 cm disk D12, and the loading plate 25 is set to the loading corresponding position. Immediately before reaching, the positioning pin 135 is engaged in the operating groove portion 105c of the cam groove 105, the positioning pin 135 is moved rightward in this operating groove portion 105c, and the right positioning member 126 is moved rightward, that is, the contact portion 128 is moved. Rotating in a direction away from the 12 cm disc D12, the positioning members 125 and 126 on both sides are interlocked with each other to move from the 12 cm disc D12. Is anti-rotated, the separating rotation state is maintained.
[0049]
  Further, when loading the 8 cm disk D8, the positioning members 125 and 126 on both sides are rotated in conjunction with each other according to the diameter of the disk D8, and the 8 cm disk D8 is rotated at the rotation position of the right positioning member 126. The positioning pin 136 is positioned in front of the cam groove 105 of the loading plate 25. In this positional relationship, when the loading plate 25 moves toward the loading corresponding position, the positioning pin 136 for the 8 cm disk D8 is engaged in the guide groove 105b through the introduction portion 105a of the cam groove 105 of the loading plate 25, and the guide While the positioning pin 136 is engaged in the groove portion 105b, the positioning members 125 and 126 on both sides are in contact with the 8 cm disc D8 and are positioned, and the loading plate 25 is set to the loading corresponding position. Immediately before reaching, the positioning pin 136 is engaged in the operation groove 105c of the cam groove 105, the positioning pin 136 is moved rightward in this operation groove 105c, and the right positioning member 126 is moved rightward, that is, the contact portion 128 is moved. It is turned away from the 8 cm disc D8, and the positioning members 125 and 126 on both sides are turned away from the 8 cm disc D8 in conjunction with each other. The separated rotation state is maintained.
[0050]
  Next, the operation of the disk drive device will be described.
[0051]
  First, the loading operation of the 12 cm disk D12 will be described.
[0052]
  FIG. 8 shows a state before the disk D12 is inserted, that is, an ejected state. In this state, when the disk D12 is inserted into the insertion / removal port 2 of the main body 1, the leading edge of the disk D12 in the insertion direction is a pair of guide pins. The pair of guide pins 35 and 36 are pressed and opened to the left and right sides by abutting on the pins 35 and 36, the left guide plate 31 rotates clockwise with the support shaft 33 as a fulcrum, and the right guide plate 32 supports the support shaft 34. The fulcrum is rotated counterclockwise against the urging force of the tension spring 37. As the left guide plate 31 is rotated in the clockwise direction, the insertion detection switch 45 is turned on by the insertion detection switch actuating section 42, and the loading motor 89 starts to rotate in the loading direction. By driving, the gears 86a to 86f of the gear train 87 are rotated, and the loading roller 112 having the gear 121 engaged with the gear 86f is rotated in the loading direction.
[0053]
  By further inserting the disk D12, the leading edge of the disk D12 in the insertion direction is sandwiched between the feed plate 111 and the loading roller 112, and thereafter, the disk D12 is loaded into the main body 1 by the rotation of the loading roller 112. go.
[0054]
  When the maximum diameter portion of the disk D12 passes between the pair of guide pins 35 and 36, the pair of guide plates 31 and 32 are rotated most, and the disk type detection switch of the left guide plate 31 is activated at that time. The disk type detection switch 46 is turned on in the section 43, and it is detected that the disk is a 12 cm disk D12.
[0055]
  The sensor plate 61 is moved rearward by the rotation of the right guide plate 32, and the guide portion 72 of the sensor arm 62 is moved rearward to allow loading of the disc D12 into the disc loading portion 3.
[0056]
  On the other hand, the leading edge of the loaded disk D12 in the insertion direction comes into contact with the pair of positioning members 125 and 126, and the pair of positioning members 125 and 126 are pushed open according to the disk diameter of the disk D12, thereby positioning the left side. The member 125 is rotated counterclockwise about the support shaft 129, and the right positioning member 126 is rotated clockwise about the support shaft 130.
[0057]
  The rotating positioning member 125 on the left side pushes the contact pin 53 of the lock lever 48 in the left direction, and the lock lever 48 is rotated in the clockwise direction around the support shaft 49 as a fulcrum. The groove 54 is engaged with the lock pin 47 of the left guide plate 31 that has already been rotated. As a result, after the maximum diameter portion of the disk D12 passes between the pair of guide pins 35, 36, the pair of guide members 31, 32 are slightly rotated in a direction to return from the position where the pair of guide members 31, 32 are rotated to the maximum by the biasing force of the tension spring 37. However, the lock pin 47 of the left guide member 31 engages with the lock groove 54 of the lock lever 48 and its rotation is restricted, and the pair of guide members 31 and 32 are held at this position. That is, the state where the sensor plate 61 and the sensor arm 62 are moved rearward is maintained.
[0058]
  The positioning pin 135 for the disk D12 of the right positioning member 126 rotated according to the disk diameter of the disk D12 is positioned in front of the cam groove 105 of the loading plate 25.
[0059]
  When the disk D12 is further loaded, the leading edge of the disk D12 in the insertion direction comes into contact with the guide part 72 of the sensor arm 62, and the sensor arm 62 is rotated clockwise about the support shaft 71 as a trigger. The plate 63 is moved forward. Due to the forward movement of the trigger plate 63, the rack lever 98 is pushed down by the projecting piece 79 of the trigger plate 63, and the rack 101 of the rack lever 98 is moved to the rack 97 of the loading plate 25 as shown in FIG. The rack 101 of the rack lever 98 is meshed with the gear 86d, the rotational driving force of the gear 86d is transmitted to the loading plate 25, and the loading plate 25 is moved from the rear ejection corresponding position to the front loading corresponding position. The movement toward is started.
[0060]
  Due to the movement of the loading plate 25 toward the loading corresponding position, the loading roller 112 is pushed down against the bias of the spring 120 by the loading release portion 103 at the front end of the loading plate 25, and the loading roller 112 is separated from the disk D12. Thus, the loading operation of the disk D12 is canceled.
[0061]
  When the loading operation is released, as shown in FIG. 9, the loading of the disk D12 into the disk loading portion 3 of the main body 1 is completed, and the two stoppers 15b of the clamp pressing plate 15 and the sensor are arranged on the periphery of the disk D12. The guide portion 72 of the arm 62 and the pair of positioning members 125 and 126 come into contact with each other, and are positioned and held at the reproduction position of the disc loading portion 3 by contact of these plural points.
[0062]
  By the movement of the loading plate 25 toward the loading corresponding position, the clamp 14 is not pushed up by the clamp release portion 104 of the loading plate 25, and the clamp portion 14 is lowered by the spring force (not shown), and the clamp portion 14 is pressed. The part 19 and the turntable 11 are attracted to each other by magnetic force, and the disk D12 is clamped between the pressing part 19 and the turntable 11 so as to be rotatable. At this time, when the clamp pressing plate 15 is lowered, the two stoppers 15b are separated from the peripheral edge of the disk D12.
[0063]
  By the movement of the loading plate 25 toward the loading corresponding position, the positioning pin 135 of the right positioning member 126 is engaged with the guide groove portion 105a of the cam groove 105 of the loading plate 25. As shown in FIG. 10, immediately before reaching the loading corresponding position of the loading plate 25, the positioning pin 135 is engaged with the operation groove 105c from the guide groove 105a of the cam groove 105, and the positioning pin 135 of the right positioning member 126 is moved to the right. The pair of positioning members 125 and 126 are rotated in conjunction with each other so as to move away from the disk D12. At substantially the same time as the pair of positioning members 125 and 126 are separated from the disk D12, a part of the moving loading plate 25 is engaged with the projecting piece 79 of the trigger plate 63 so that the trigger plate 63 It is moved forward together with the loading plate 25, and the guide part 72 of the sensor arm 62 is rotated so as to be separated from the disk D12. As a result, the contact between the guide portion 72 of the sensor arm 62 and the pair of positioning members 125 and 126 is released, and the rotation of the disk D12 is allowed.
[0064]
  Loading plate 25ButWhen the loading corresponding position is reached, the loading corresponding position detecting switch 107 is turned on by the switch operating piece 106 of the loading plate 25, and the loading motor 89 is stopped. As a result, the loading operation of the disk D12 is completed, and the disk D12 can be reproduced.
[0065]
  Next, the ejecting operation of the 12 cm disc D12 will be described.
[0066]
  In the loading state of the disk D12 shown in FIG. 10, when the eject button (not shown) is turned on, the driving of the loading motor 89 in the ejection direction opposite to the loading direction is started, and the loading located at the front loading corresponding position. The plate 25 is moved toward the rear ejection-corresponding position, and the loading-corresponding position detection switch 107 that was turned on by the switch operating piece 106 is first turned off.
[0067]
  As the loading plate 25 moves toward the ejection-corresponding position, the trigger plate 63 moves rearward and the guide portion 72 of the sensor arm 62 comes into contact with the disk D12, as shown in FIG. The positioning pin 135 is engaged with the guide groove portion 105b from the operating groove portion 105c of 105, and the pair of positioning members 125 and 126 are rotated in a closing direction to come into contact with the disk D12. When the guide groove portion 105b of the cam groove 105 of the loading plate 25 is disengaged from the positioning pin 135, the pair of positioning members 125 and 126 become free.
[0068]
  The clamp part 14 is pushed up by the clamp release part 104 of the loading plate 25, the pressing part 19 of the clamp part 14 and the turntable 11 are separated from each other against attraction by magnetic force, and the clamp of the disk D12 is released.
[0069]
  The pushing down of the loading roller 112 by the loading releasing portion 103 of the loading plate 25 is released, the loading roller 112 is lifted by the bias of the spring 120 and is brought into contact with the disk D12, and the disk is interposed between the loading roller 112 and the feeding plate 111. D12 is sandwiched. The loading roller 112 is rotated in the ejecting direction by the driving force transmitted from the loading motor 89 through the gear train 87, and the disk D 12 is ejected from the main body 1 by the rotation of the loading roller 112.
[0070]
  When the maximum diameter portion of the disk D12 passes between the pair of positioning members 125 and 126, the pair of positioning members 125 and 126 are rotated in a closing direction by a spring (not shown), and the lock lever by the left positioning member 125 is locked. The leftward push of 48 is released.
[0071]
  When the maximum diameter portion of the disk D12 passes between the pair of guide pins 35, 36, the pair of guide pins 35, 36 are pushed a little, and the left guide plate 31 rotates accordingly. The lock groove 54 of the lock lever 48 is disengaged from the lock pin 47 of the guide plate 31, and the lock lever 48 is rotated counterclockwise by the urging force of the tension spring 50, so that the guide plate 31 is unlocked.
[0072]
  The maximum diameter portion of the disk D12 passes between the pair of guide pins 35 and 36, and the pair of guide plates 31 and 32 are rotated in a closing direction, and turned on by the disk type detection switch operating portion 43 of the left guide plate 31. The loading motor 89 is stopped by turning off the disc type detection switch 46 that has been set. That is, the ejecting operation of the disk D12 is stopped in a state where a part of the disk D12 is sandwiched between the feeding plate 111 and the loading roller 112.
[0073]
  By manually pulling out the disc D12 ejected from the main body 1, the pair of guide plates 31, 32 are rotated in a direction to close each other through the pair of guide pins 35, 36, and the left guide plate 31 is inserted. The insertion detection switch 45 that has been turned on by the detection switch operating section 42 is turned off, and the initial ejection state shown in FIG. 8 is restored.
[0074]
  Next, the loading operation of an 8 cm disc will be described.
[0075]
  FIG. 8 shows a state before the disk D8 is inserted, that is, an ejected state. In this state, when the disk D8 is inserted into the insertion / removal port 2 of the main body 1, the leading edge of the disk D8 in the insertion direction is a pair of guide pins. The pair of guide pins 35 and 36 are pushed and opened to the left and right sides in contact with 35 and 36, the left guide plate 31 is rotated clockwise around the support shaft 33, and the right guide plate 32 is connected to the support shaft 34. The fulcrum is rotated counterclockwise against the urging force of the tension spring 37. As the left guide plate 31 is rotated in the clockwise direction, the insertion detection switch 45 is turned on by the insertion detection switch actuating section 42, and the loading motor 89 starts to rotate in the loading direction. By driving, the gears 86a to 86f of the gear train 87 are rotated, and the loading roller 112 having the gear 121 engaged with the gear 86f is rotated in the loading direction.
[0076]
  By further inserting the disk D8, the leading edge of the disk D8 in the insertion direction is sandwiched between the feed plate 111 and the loading roller 112, and thereafter, the disk D8 is loaded into the main body 1 by the rotation of the loading roller 112. go.
[0077]
  After the maximum diameter portion of the disk D8 passes between the pair of guide pins 35, 36, the pair of guide plates 31, 32 are rotated in the direction in which the pair of guide pins 35, 36 are closed to return to the initial state. Therefore, the disk type detection switch 46 is turned off, and the disk type detection switch 46 is kept in the off state, so that the disk D8 of 8 cm is detected.
[0078]
  On the other hand, the leading edge of the loaded disk D8 in the insertion direction comes into contact with the pair of positioning members 125 and 126, and the pair of positioning members 125 and 126 are pushed open according to the disk diameter of the disk D8, thereby positioning the left side. The member 125 is rotated counterclockwise about the support shaft 129, and the right positioning member 126 is rotated clockwise about the support shaft 130. The positioning pin 136 for the disk D8 of the right positioning member 126 rotated according to the disk diameter of the disk D8 is positioned in front of the cam groove 105 of the loading plate 25.
[0079]
  When the disk D8 is further loaded, the leading edge of the disk D8 in the insertion direction comes into contact with the guide portion 72 of the sensor arm 62, and the sensor arm 62 is rotated clockwise about the support shaft 71 as a trigger. The plate 63 is moved forward. Due to the forward movement of the trigger plate 63, the rack lever 98 is pushed down by the projecting piece 79 of the trigger plate 63, and the rack 101 of the rack lever 98 is moved to the rack 97 of the loading plate 25 as shown in FIG. The rack 101 of the rack lever 98 is meshed with the gear 86d, the rotational driving force of the gear 86d is transmitted to the loading plate 25, and the loading plate 25 is moved from the rear ejection corresponding position to the front loading corresponding position. The movement toward is started.
[0080]
  Due to the movement of the loading plate 25 toward the loading corresponding position, the loading roller 112 is pushed down against the bias of the spring 120 by the loading release portion 103 at the front end of the loading plate 25, and the loading roller 112 is separated from the disk D8. Thus, the loading operation of the disk D8 is canceled.
[0081]
  When the loading operation is released, as shown in FIG. 11, the loading of the disk D8 onto the disk loading portion 3 of the main body 1 is completed, and the guide portion 72 of the sensor arm 62 and the pair of positioning members are positioned on the periphery of the disk D8. The members 125 and 126 come into contact with each other, and are positioned and held at the reproduction position of the disc loading unit 3 by these three points of contact.
[0082]
  By the movement of the loading plate 25 toward the loading corresponding position, the pushing up of the clamp part 14 by the clamp releasing part 104 of the loading plate 25 is released, and the clamp part 14 is lowered by the biasing of a spring (not shown), and the clamp part 14 is pressed. The part 19 and the turntable 11 are attracted to each other by magnetic force, and the disk D8 is clamped between the pressing part 19 and the turntable 11 so as to be rotatable.
[0083]
  Due to the movement of the loading plate 25 toward the loading corresponding position, the positioning pin 136 of the right positioning member 126 is engaged in the guide groove portion 105a of the cam groove 105 of the loading plate 25. As shown in FIG. 12, immediately before reaching the loading-corresponding position of the loading plate 25, the positioning pin 136 is engaged with the operation groove 105c from the guide groove 105a of the cam groove 105, and the positioning pin 136 of the right positioning member 126 is moved to the right. The pair of positioning members 125 and 126 are rotated in conjunction with each other so as to move away from the disk D8. At approximately the same time as the pair of positioning members 125 and 126 are separated from the disk D8, a part of the moving loading plate 25 is engaged with the projecting piece 79 of the trigger plate 63 so that the trigger plate 63 It is moved forward together with the loading plate 25, and the guide part 72 of the sensor arm 62 is rotated so as to be separated from the disk D8. As a result, the positioning of the disk D8 by the three-point contact between the guide portion 72 of the sensor arm 62 and the pair of positioning members 125 and 126 is released, and the rotation of the disk D8 is allowed.
[0084]
  When the loading plate 25 reaches the loading corresponding position, the loading corresponding position detection switch 107 is turned on by the switch operating piece 106 of the loading plate 25, and the loading motor 89 is stopped. As a result, the loading operation of the disk D8 is completed, and the disk D8 can be reproduced.
[0085]
  Next, the ejecting operation of the 8-cm disk D8 will be described.
[0086]
  In the loading state of the disk D8 shown in FIG. 12, when the eject button (not shown) is turned on, the driving of the loading motor 89 in the ejection direction opposite to the loading direction is started, and the loading located at the front loading corresponding position is started. The plate 25 is moved toward the rear ejection-corresponding position, and the loading-corresponding position detection switch 107 that was turned on by the switch operating piece 106 is first turned off.
[0087]
  The movement of the loading plate 25 toward the ejection-corresponding position causes the trigger plate 63 to move rearward so that the guide portion 72 of the sensor arm 62 comes into contact with the disk D8, and the cam groove of the loading plate 25 is also shown in FIG. The positioning pin 136 is engaged with the guide groove portion 105b from the operating groove portion 105c of 105, and the pair of positioning members 125 and 126 are rotated in a closing direction to come into contact with the disk D8. When the guide groove portion 105b of the cam groove 105 of the loading plate 25 is disengaged from the positioning pin 136, the pair of positioning members 125 and 126 become free.
[0088]
  The clamp part 14 is pushed up by the clamp release part 104 of the loading plate 25, the pressing part 19 of the clamp part 14 and the turntable 11 are separated from each other against attraction by magnetic force, and the clamp of the disk D8 is released.
[0089]
  The pushing down of the loading roller 112 by the loading releasing portion 103 of the loading plate 25 is released, the loading roller 112 is lifted by the bias of the spring 120 and is brought into contact with the disk D8, and the disk is interposed between the loading roller 112 and the feeding plate 111. D8 is sandwiched. The loading roller 112 is rotated in the eject direction by the driving force transmitted from the loading motor 89 through the gear train 87, and the disk D 8 is ejected from the main body 1 by the rotation of the loading roller 112.
[0090]
  After the maximum diameter portion of the disk D8 passes between the pair of positioning members 125 and 126, when the maximum diameter portion of the disk D8 passes between the pair of guide pins 35 and 36, the maximum diameter portion of the disk D8 is a pair. When the guide pins 35 and 36 are pushed open and the disc type detection switch 46 is temporarily turned on by the eject operation portion 43a of the left guide plate 31, the disc type detection switch 46 is turned off. The loading motor 89 is stopped. That is, the ejecting operation of the disk D8 is stopped in a state where a part of the disk D8 is sandwiched between the feeding plate 111 and the loading roller 112.
[0091]
  By manually pulling out the disc D8 ejected from the main body 1, the pair of guide plates 31, 32 are rotated in a direction to close each other through the pair of guide pins 35, 36, and the left guide plate 31 is inserted. The insertion detection switch 45 that has been turned on by the detection switch operating section 42 is turned off, and the initial ejection state shown in FIG. 8 is restored.
[0092]
  As described above, since the driving unit 24 and the loading plate 25 are provided on one side of the main body 1, the driving unit 24 and the loading plate 25 may overlap each other between the main body 1 and the disk loading unit 3 in a plane. The main body 1 can be made thinner, and the loading plate 25 moves along one side of the main body 1, so that the drive mechanism including the loading plate 25 can be miniaturized.
[0093]
  Further, the gear train 87 of the drive unit 24 is arranged along one side intersecting with the insertion / removal port 2 of the main body 1, and the end of the gear train 87 opposite to the insertion / removal port 2 is driven by the loading motor 89. The driving force is transmitted from the end of the gear train 87 on the second side to the loading mechanism 26, and the driving force is transmitted from the middle of the gear train 87 to the loading plate 25, so that the driving force from the drive unit 24 to each mechanism can be ensured. In addition to transmission, the drive unit 24 can be miniaturized.
[0094]
  Further, the pair of guide members 31 and 32 expands and moves according to the diameter of the disk inserted into the insertion / removal port 2 of the main body 1, and the disk is loaded in conjunction with the expansion movement of the pair of guide members 31 and 32. The detection position of the detection unit 23 that detects the movement of the disk to the unit 3 is switched by the sensor plate 61, and the pair of guide members 31, 32 are expanded according to the disk diameter while the disk is positioned in the main body 1. Since the lock lever 48 holds the disc in the open position, discs with different disc diameters can be handled and loaded reliably.
[0095]
  In addition, a pair of positioning members 125 and 126 that open and close in conjunction with each other in accordance with the disk diameter can be brought into contact with each other to reliably position the disk loaded in the disk loading unit 3 of the main body 1. One of the plurality of positioning pins 135 and 136 provided on one positioning member 126 according to the movement position of the positioning member 126 is engaged with the cam groove 105 of the loading plate 25 by moving toward the loading corresponding position. When the plate 25 is moved to the loading corresponding position, the pair of positioning members 125 and 126 are moved away from the disk through the engagement between the cam groove 105 and one of the positioning pins 135 and 136, and the rotation of the disk can be allowed. Therefore, it is possible to reliably handle the discs having different disc diameters.
[0096]
  Further, the sensor arm 62 of the detection unit 23 abuts on the tip of the peripheral edge of the disk to be moved to the disk loading unit 3 so that the disk can be detected and positioned, and the movement of the loading plate 25 to the loading corresponding position causes the detection unit 23 to move. The sensor arm 62 moves away from the disk, allowing the disk to rotate.
[0097]
  The disc is not limited to a music-only compact disc for reproduction, but can be applied to loading of an optical disc such as a DVD, a magneto-optical disc such as an MD, a flexible magnetic disc, and the like, and similar effects can be obtained.
[0098]
【The invention's effect】
  According to the disk loading apparatus of the first aspect, since the driving unit and the loading member are provided on one side of the main body, the driving unit and the loading member may overlap each other in a plane between the main body and the disk loading unit. The main body can be made thin, and the loading member moves along one side of the main body, so that the drive mechanism including the loading member can be miniaturized.. BookThe gear train of the drive unit is arranged along one side that intersects the body insertion / extraction port, the end of the gear train on the opposite side to the insertion / extraction port is driven by a loading motor, and loading from the end of the gear train on the insertion / extraction port side Since the driving force is transmitted to the mechanism and the driving force is transmitted from the middle of the gear train to the loading member, the driving force from the driving unit to each mechanism can be reliably transmitted, and the driving unit can be reduced in size.The detection member abuts on the peripheral edge of the disk to be moved to the disk loading section, and can detect and position the disk.The detection member moves away from the disk by moving the loading member to the loading corresponding position, and the disk rotates. acceptable.
[0099]
  Claim2According to the described disc loading device,Since the driving unit and the loading member are provided on one side of the main body, the driving unit and the loading member do not overlap each other between the main body and the disk loading unit, and the main body can be thinned. Since the loading member moves along one side, the drive mechanism including the loading member can be miniaturized. The gear train of the drive unit is arranged along one side that intersects the insertion / removal port of the main unit, the end of the gear train on the side opposite to the insertion / removal port is driven by a loading motor, and loading from the end of the gear train on the insertion / removal side Since the driving force is transmitted to the mechanism and the driving force is transmitted from the middle of the gear train to the loading member, the driving force from the driving unit to each mechanism can be reliably transmitted, and the driving unit can be miniaturized. The detection member abuts on the peripheral edge of the disk to be moved to the disk loading section, and can detect and position the disk.The detection member moves away from the disk by moving the loading member to the loading corresponding position, and the disk rotates. acceptable.
[0100]
  further,Detection that detects the movement of the disk to the disk loading section in conjunction with the expansion movement of the pair of guide members in accordance with the diameter of the disk inserted into the insertion / removal opening of the main body. PartMaterialThe detection position is switched by the switching member, and while the disk is located in the main body, the pair of guide members are held by the locking means at the expanded position corresponding to the disk diameter, so that disks with different disk diameters can be handled. Can be loaded reliably. BookA pair of positioning members that open and close in conjunction with each other according to the disk diameter can be reliably positioned by abutting a pair of positioning members, and the loading member can be moved toward a loading-corresponding position. Of the plurality of positioning pins provided on one positioning member, one positioning pin corresponding to the moving position of the positioning member engages with the cam groove of the loading member, and the cam groove and the loading member move to the loading corresponding position. The pair of positioning members can be moved away from the disk via the positioning pins to allow the disk to rotate, so that disks with different disk diameters can be handled and positioned reliably..
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a disk drive device to which a disk loading device according to an embodiment of the present invention is applied.
FIG. 2 is a perspective view of an assembled state of the disk drive device.
FIG. 3 is a perspective view through the top plate of the disk drive device.
FIG. 4 is a perspective view of a frame body of the disk drive device.
FIG. 5 is a perspective view of the disassembled state mainly composed of the structure incorporated in the frame of the disk drive device.
6A and 6B show a drive portion of a loading member of the disk drive device, wherein FIG. 6A is an explanatory diagram of a state where no driving force is transmitted to the loading member, and FIG. 6B is an explanatory diagram of a state where the driving force is transmitted to the loading member. FIG.
FIG. 7 is a perspective view of a disassembled state of the top plate and the feed plate of the disk drive device.
FIG. 8 shows a state before insertion of a 12 cm disc or an 8 cm disc, wherein (a) is a plan view of an upper configuration and (b) is a plan view of a lower configuration.
FIGS. 9A and 9B show a loading process of a 12 cm disc, wherein FIG. 9A is a plan view of an upper configuration, and FIG. 9B is a plan view of a lower configuration.
FIGS. 10A and 10B show a state where a 12 cm disc has been completely loaded. FIG. 10A is a plan view of the upper configuration, and FIG. 10B is a plan view of the lower configuration.
11A and 11B show the loading process of the 8 cm disc, wherein FIG. 11A is a plan view of the upper configuration, and FIG. 11B is a plan view of the lower configuration.
12A and 12B show a completed state of loading an 8 cm disc, wherein FIG. 12A is a plan view of the upper configuration, and FIG. 12B is a plan view of the lower configuration.
[Explanation of symbols]
        1 Body
        2 insertion and removal
        3 Disc loading section
        14 Clamp part
        21 Disc loading equipmentPlace
        24 Drive unit
        25 Loading plate as loading member
        26 Loading mechanism
        31, 32 Guide plate as guide member
        35, 36 Guide pin
        46    Disk type detection switch
        48 Lock lever as a locking means
        61 Sensor plate as switching member
        62 Sensor arm as detection member
        63    Trigger plate
        87 Gear train
        89 Loading motor
        98    Rack lever
        105 Cam groove
        125, 126 Positioning member
        135, 136 Locating pin
        D8, D12 disc

Claims (2)

A main body having an insertion / removal port through which the disc is inserted / removed and a disk loading unit into which the disc is loaded through the insertion / removal port;
A drive unit having a gear train arranged along one side of the main body and a loading motor that drives an end of the gear train opposite to the insertion / removal port of the main body ;
A rack is provided so as to be movable between an ejection-corresponding position and a loading-corresponding position along one side of the main body, and is capable of meshing with the middle of the gear train of the driving unit . A loading member in which the driving force is transmitted and moved by meshing with the middle of the gear train, and the transmission to the ejection corresponding position is released from the middle of the gear train of the drive unit and the transmission of the driving force is released;
A detection member that rotates while the peripheral edge of the disk moved to the disk loading portion contacts and rotates, and moves away from the disk by the movement of the loading member to a loading corresponding position;
A trigger plate that moves in conjunction with the rotation of the detection member;
The loading member is pivotally supported so as to be swingable between a position overlapping with the rack of the loading member and meshing with the middle of the gear train of the driving unit and a position separating from the middle of the gear train of the driving unit. The detection member pivots in contact with the disk and swings to a position where it engages with the middle of the gear train of the drive unit via the trigger plate, and the drive from the middle of the gear train of the drive unit A rack lever that moves the loading member at the ejection-corresponding position by transmission of force and meshes the rack of the loading member with the middle of the gear train of the drive unit;
The loading member is in contact with the disk in a state corresponding to the ejection position, and the disk is moved between the insertion / removal port and the disk loading unit by transmission of driving force from the end of the gear train on the insertion / removal port side of the driving unit . A loading mechanism for moving the loading member away from the disk by moving the loading member to a loading corresponding position;
A clamp portion for releasing the clamp of the disc in a state where the loading member is located at the ejection corresponding position and for clamping the disc rotatably by moving the loading member to the loading corresponding position. Disc loading device. A main body having an insertion / removal port through which the disc is inserted / removed and a disk loading unit into which the disc is loaded through the insertion / removal port;
A drive unit having a gear train arranged along one side of the main body and a loading motor that drives an end of the gear train opposite to the insertion / removal port of the main body;
A rack is provided so as to be movable between an ejection-corresponding position and a loading-corresponding position along one side of the main body, and is capable of meshing with the middle of the gear train of the driving unit. A loading member in which the driving force is transmitted and moved by meshing with the middle of the gear train, and the transmission to the ejection corresponding position is released from the middle of the gear train of the drive unit and the transmission of the driving force is released;
A detection member that rotates while the peripheral edge of the disk moved to the disk loading portion contacts and rotates, and moves away from the disk by the movement of the loading member to a loading corresponding position;
A trigger plate that moves in conjunction with the rotation of the detection member;
The loading member is pivotally supported so as to be swingable between a position overlapping with the rack of the loading member and meshing with the middle of the gear train of the driving unit and a position separating from the middle of the gear train of the driving unit. The detection member pivots in contact with the disk and swings to a position where it engages with the middle of the gear train of the drive unit via the trigger plate, and the drive from the middle of the gear train of the drive unit A rack lever that moves the loading member at the ejection-corresponding position by transmission of force and meshes the rack of the loading member with the middle of the gear train of the drive unit;
Pair having a pair of guide pins which are arranged openably move spaced apart from each other on opposite sides of the insertion slot is widened moved according to the disc diameter in contact with the disks inserted into and removed from insertion slot of the main body A guide member of
A switching member that switches the detection position of the detection member that detects the movement of the disk to the disk loading portion in conjunction with the expansion movement according to the disk diameter of the pair of guide members;
Locking means for holding the pair of guide members at an expanded position corresponding to the disk diameter in a state where the center of the disk inserted into and removed from the insertion / removal port is located closer to the disk loading portion than the guide pin ;
A disc type detection switch for detecting the type of the disc from the position of the guide member in a state where the center of the disc inserted into and removed from the insertion / removal port is located closer to the disc loading unit than the guide pin;
The main body is arranged on both sides of the insertion / removal opening at an interval, and is arranged so as to be able to open and close in conjunction with each other. A pair of positioning members to be moved open;
A plurality of positioning pins provided on one positioning member on the loading member side;
The loading member is engaged with one positioning pin corresponding to the movement position of one positioning member by the movement of the loading member toward the loading corresponding position, and the movement of the loading member to the loading corresponding position. features and to Lud I disk loading apparatus in that a cam groove of separating move a pair of positioning members from the disc through the positioning pin.

Images