JP2011048891A - Disk device with sliders between which space is increased by disk being carried - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a "disk device with sliders between which a space is increased by a disk being carried", wherein the sliders are invariably set to their initial positions after the disk is unloaded or loaded. <P>SOLUTION: Sensing pins 203A and 203B which are moved by an outer peripheral edge of an inserted disk D, and switch pushers 204A and 204B which are moved along with the sensing pins 203A and 203B, are provided. The sensing pins 203A and 203B are biased toward their initial positions where the space is narrowest. The switch pushers 204A and 204B cause sensing switches R1 and L1 which are initial position sensing members, to be in their sensing states. A shutter which closes an insertion slot 23 provided in a housing is provided. When the shutter is in its closed state, the switch pushers 204A and 204B are kept in their initial states by the shutter. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is provided with a pair of sliding members that slide with a disk inserted from an insertion slot to widen the interval, and the disk is normally conveyed by the operation of the sliding member, or has a normal shape. The present invention also relates to a disk device that makes it possible to determine whether the disk is a size disk.

  In a so-called slot-in type disk device in which a disk is inserted from an insertion port formed in the housing, such as an in-vehicle disk device, the disk inserted from the insertion port is normally directed toward the inside of the housing. It is necessary to monitor whether it has been carried in or whether the disk inside the housing has been normally carried in toward the insertion slot. It is also necessary to determine whether the disc inserted from the insertion slot and carried in is a disc having a normal shape and size.

  In the disk device described in Patent Document 1 below, a plurality of optical sensors are provided inside the insertion slot of the housing, and depending on which optical sensor detects the disk, The disc size can be determined.

  In the disk device described in Patent Document 2 below, a pair of pins are provided inside the insertion slot, and these pins are set at initial positions at intervals shorter than the diameter of the disk by the force of the spring. There is provided a switch for detecting that is in the initial position. When the disc is inserted from the insertion slot and carried in, the pins slide with the outer peripheral edge of the disc to widen the interval between the pins. The movement of this pin is monitored based on the output of the switch or the like so that the state of transport of the disk and the size of the disk can be determined.

JP 2000-348424 A JP 2007-066353 A

  As described in Patent Document 1, a disk device using an optical sensor consumes a large amount of power because the optical sensor needs to be energized all the time, and malfunction is likely to occur due to adhesion of dust and dirt. There are challenges.

  In that regard, as described in Patent Document 2, the disk device provided with a pair of pins that slide with the outer peripheral edge of the disk has a structure in which the pins actually operate on the outer peripheral edge of the disk. There are advantages that it is difficult to occur and the reliability is high, and that power consumption is small.

  However, if the force of the spring that returns the pair of pins to the initial position becomes weak or the movement load of the pins increases, the pins may not return to the initial position even though the disk is not inserted. In this case, it is impossible to confirm with the switch that the pin has returned to the initial position, and the control unit provided in the disk device makes an erroneous determination that the disk is being transported inside the housing. After that, even if a disk is inserted into the insertion slot, there arises a problem that the carrying-in operation does not start.

  The present invention solves the above-described conventional problems, and is a disk device provided with a sliding member that slides with the outer peripheral edge of the disk, and the disk can always return the sliding member to the initial position. The object is to provide a device.

  Another object of the present invention is to provide a disk device that can always return the sliding member to the initial position by utilizing the operation of a shutter member that opens and closes an insertion slot.

The present invention has a housing having an insertion port, and a transport mechanism that performs a carry-in operation for carrying a disk inserted from the insertion port into the housing and a discharging operation for ejecting the disk from the housing to the insertion port. In the disk unit,
A pair of sliding members that are set to an opposing distance shorter than the diameter of the disk at the initial position and slide on the outer peripheral edge of the disk during loading and unloading operations to widen the opposing distance, and the sliding member is initially An initial position detection member that detects that the position has been moved, and a biasing member that biases the sliding member to an initial position;
A holding member that moves between a holding position that holds the sliding member in an initial position and a holding release position that releases the holding; and
A switching member for moving the holding member to a holding position is provided at least one of when the disc is completely loaded into the housing and when the disc is ejected from the inside of the housing. It is.

  In the disk device of the present invention, the state of disk conveyance and the shape and size of the disk are determined by the operation of a pair of sliding members that slide on the outer periphery of the disk. When the loading of the disc is completed or the ejection of the disc is completed, the sliding member is forcibly held at the holding position by the holding member. Therefore, the sliding member is reliably returned to the initial position, and it is detected by the initial position detecting member that the sliding member has returned to the initial position, and the subsequent control operation can be normally performed.

  In the present invention, the holding member is a shutter member that opens and closes the insertion port. The insertion port is closed when the shutter member is in the holding position, and the insertion port is opened when the shutter member is in the holding release position. Those are preferred.

  By using the shutter member also as the holding member, the number of parts constituting the disk device can be reduced.

  In the present invention, it is preferable that the moving force of the switching member acts directly on the holding member to move the holding member to the holding position.

  If the holding member is not moved by the force of the spring but the moving force of the switching member directly acts on the holding member and the holding member is moved to the holding position, the pair of sliding members are always forced to move. Since it can be held at the initial position, a malfunction that the sliding member cannot return to the initial position can be prevented with high probability.

  In the present invention, a movement detection member that detects that at least one of the sliding members has moved a predetermined distance from the initial position is provided.

  In addition to the initial position detection member, when a movement detection member that detects that the movement member has moved is provided, by combining the detection output of the initial position detection member and the detection output of the movement detection member, It becomes possible to determine whether or not the shape and size of the loaded disc are normal.

  In the present invention, when the initial position detecting member detects that the sliding member is in the initial position, the disk can be inserted or the disk can be carried out.

  According to the present invention, since the sliding member can surely return to the initial position, the inconvenience that the disc loading operation cannot be performed due to a malfunction is less likely to occur.

  For example, the present invention is provided with an insertion detection member for detecting insertion of a disc from the insertion slot, and the initial position detection member detects that the sliding member is in an initial position, and the insertion detection When the member detects the disk, the disk loading operation is started.

  The disk device of the present invention can reliably return the pair of sliding members that monitor the disk conveyance state or the disk shape and size to the initial position. Therefore, it is possible to prevent an erroneous determination that the disc is being conveyed when the loading of the disc is completed or the disc is ejected.

  In addition, the number of parts can be reduced by holding the sliding member at the initial position using the shutter member.

1 is an exploded perspective view showing the overall structure of a disk device according to an embodiment of the present invention; Plan view of the disk device, A partial bottom view of the detection mechanism provided inside the insertion slot as seen from the lower side of the disk device, Block diagram showing the circuit configuration of the disk device, It is a perspective view which shows operation | movement of a shutter member from the front side, (A) shows the state which has a shutter member in a holding position and a closed position, (B) has a state which has a shutter member in a holding release position and an open position Showing, A plan view showing the operation of the switching member when the shutter member is in the holding position and in the closed position; FIG. 6 is a plan view showing the operation of the switching member when the shutter member is in the holding release position and in the open position;

  A disk device 1 shown in FIG. 1 has a box-shaped housing 2. In FIG. 1, the reference direction of the housing 2 is the lower side on the Z1 side, the upper side on the Z2 side, the left side on the X1 side, the right side on the X2 side, the front side on the Y1 side, and the rear side on the Y2 side. Further, the X1-X2 direction shown in the figure is the horizontal direction, and the Y1-Y2 direction is the depth direction.

  The disk D loaded in the disk device 1 has a diameter of 12 cm, and is, for example, a CD (compact disk), a CD-ROM, a DVD (digital versatile disk), etc., and has a center hole D1. Yes.

  The housing 2 is assembled by sequentially stacking a lower housing 3, an intermediate housing 4, and an upper housing 5 from the bottom to the top. The lower housing 3 has a bottom surface 6 of the housing 2, and the intermediate housing 4 has a front surface 7 and a right surface 8 of the housing 2, and an insertion slot through which the disk D is inserted and ejected from the front surface 7. 23 is open. The upper housing 5 has a left side surface 9, a rear surface 10, and a ceiling surface 11 of the housing 2.

  As shown in FIG. 1, a first switching mechanism 12 is provided on the upper surface of the bottom surface 6 of the lower housing 3. The first switching mechanism 12 is provided with a rack member 30 that is driven in the Y1-Y2 direction by the power of a switching motor (not shown).

  In the lower housing 3, a unit support base 13 is provided on the first switching mechanism 12, and the unit support base 13 is elastically supported by a plurality of dampers 18 provided on the bottom surface 6 of the lower housing 3. . The unit support base 13 is provided with restriction shafts 13a protruding in the Y2 direction and restriction shafts 13b and 13b protruding in the Y1 direction.

  In the lower housing 3, a lock member 54 is provided inside the side plate on the Y2 side, and a control hole 56 is formed in the lock member 54. The restriction shaft 13 a provided on the unit support base 13 is inserted into the control hole 56. A lock member (not shown) is also provided on the inside of the side plate on the Y1 side of the lower housing 3, and two control holes are formed in the lock member, thereby restricting shafts 13b and 13b provided in the unit support base 13. Is inserted into each of the two control holes.

  In the first switching mechanism 12, the moving force of the rack member 30 is applied to the lock switching slider 36 via the rotating arm 35. The lock switching slider 36 moves the lock member 54 and other lock members provided inside the Y1 side plate in the X1 direction or the X2 direction.

  A drive unit 14 is installed on the unit support base 13. The drive unit 14 is provided with a turntable 82 that is a rotation drive unit and a spindle motor that drives the turntable 82. Further, the drive unit 14 has an optical head 83, and the optical head 83 moves in a direction approaching the turntable 82 and a direction away from the turntable 82 by a sled mechanism mounted on the drive unit 14. To do. At this time, the objective lens 83 a provided in the optical head 83 moves along the recording surface of the disk D clamped on the turntable 82.

  The unit support base 13 is provided with a support shaft 80 that rises perpendicularly to an end portion on the Y2 side in the drawing, and the drive unit 14 is supported so as to be able to rotate in the horizontal direction around the support shaft 80. In FIG. 1, the drive unit 14 is in the retracted position. When the drive unit 14 is rotated in the direction of the arrow (a) from the retracted position, the turntable 82 is substantially at the center of the lower housing 3 as shown in FIGS. 2 and 4. The drive unit 14 is set to a drive position where the selected disk D can be rotationally driven.

  The drive unit 14 is rotated from the retracted position toward the drive position by the first switching mechanism 12. As shown in FIG. 1, the first switching mechanism 12 is provided with a switching slider 34 that moves in the Y1-Y2 direction together with the rack member 30, and a drive pin 33 is fixed to the switching slider 34. When the rack member 30 is moved in the Y2 direction in the figure, the switching slider 34 is moved in the Y2 direction in the figure, and the drive unit 14 is rotated to the retracted position shown in FIG. When the rack member 30 moves in the Y1 direction in the drawing and the switching slider 34 moves in the Y1 direction in the drawing, the driving unit 14 is rotated in the arrow (a) direction by the driving pin 33 and moved to the driving position.

  A clamp mechanism (clamping means) that clamps the center hole D1 of the disk D is mounted on the turntable 82. This clamping mechanism is a so-called self-clamping mechanism. A convex portion 82a protruding in the Z2 direction is provided at the center portion of the turntable 82, and the center hole D1 of the disk D is fitted into the convex portion 82a. Three clamp claws are provided in the convex portion 82a, and the clamp claws project from the outer periphery of the convex portion 82a in the radial direction. The clamp claws are provided at an angle of 120 degrees with respect to the rotation center of the turntable 82.

  A transmission mechanism for transmitting clamping power is provided in the drive unit 14, and a transmission link connected to the transmission mechanism is rotatably supported on the support shaft 80. After the switching slider 34 moves in the Y1 direction and the drive unit 14 is rotated to the driving position shown in FIG. 2 or 4 by the drive pin 33, the switching slider 34 is further moved to the Y1 by the driving force of the rack member 30. When moving in the direction, the transmission link is rotated by the drive pin 33 while the drive unit 14 is stopped at the drive position. The turning force of the transmission link is transmitted to the inside of the turntable 82 by the transmission mechanism, and the clamp claw protrudes from the outer periphery of the convex portion 82a to complete the clamping operation.

  When the clamp claw is in a state where the clamping operation is completed in a state where the center hole D1 of the disk D is fitted to the convex portion 82a, the clamp claw is pressed into the center hole D1 of the disk D, and the disk D is brought into contact with the turntable 82. Clamped to be able to rotate together.

  As shown in FIG. 1, a mechanism base 15 parallel to the bottom surface 6 is provided on the upper portion of the intermediate casing 4, and a second switching mechanism 16 is provided on the mechanism base 15. 6 and 7 show details of the second switching mechanism 16. As shown in FIGS. 1, 6, and 7, a transfer unit 17 is provided below the mechanism base 15 and inside the front surface 7.

  As shown in FIGS. 2 and 4, the transfer unit 17 is provided with transfer rollers 112 and 113. The transfer rollers 112 and 113 are provided on the outer periphery of a single roller shaft 114. A synthetic resin clamping member facing the transfer rollers 112 and 113 is fixed to the transfer unit 17, and the transfer rollers 112 and 113 are pressed against the clamping member by a spring force. The disc D inserted from the insertion port 23 is sandwiched between the transfer rollers 112 and 113 and the sandwiching member.

  As shown in FIGS. 1, 6, and 7, a support shaft 17 a is vertically fixed to the bottom surface of the lower housing 3, and an end portion on the X1 side of the transfer unit 17 is freely rotatable on the support shaft 17 a. It is supported by.

  As shown in FIGS. 6 and 7, the second switching mechanism 16 is provided with an arc-shaped switching member 91. The switching member 91 is formed with a pair of guide elongated holes 91a and 91a extending along a circular arc locus, and a pair of guide shafts 92 and 92 are fixed on the mechanism base 15 so as to protrude upward. Each guide shaft 92 is inserted into the guide elongated hole 91a, and the switching member 91 is slidably guided in the (d) direction and the (e) direction along the arc locus. In addition, rack teeth 91b are formed along the arc locus on the outer peripheral edge of the switching member 91.

  On the mechanism base 15, a switching motor M2 is provided. The rotational force of the switching motor M2 is transmitted to the rack teeth 91b via the reduction gear group 93, and the switching member 91 is moved in the (d)-(e) direction.

  As shown in FIGS. 6 and 7, an arcuate guide hole 15c is opened in the mechanism base 15, and the guide hole 15c extends along an arc locus centering on the support shaft 17a. A driving shaft 133 extending upward is fixed to an end portion on the X2 side of the transfer unit 17, and the driving shaft 133 is inserted into the guide hole 15c from the bottom upward. A drive lever 135 is provided on the mechanism base 15. The base of the drive lever 135 is rotatably supported by the mechanism base 15 via a shaft 136. A drive elongated hole 135a is opened in the drive lever 135, and the rotating ring 134 provided on the outer periphery of the drive shaft 133 is inserted into the drive elongated hole 135a.

  A unit control slot 137 is opened in the switching member 91. A transmission shaft 138 projects vertically from the upper surface of the drive lever 135, and this transmission shaft 138 is inserted into the unit control slot 137 from the bottom to the top.

  As shown in FIG. 6, when the switching member 91 is moving in the (d) direction, the drive lever 135 is rotated clockwise by the unit control slot 137, and the drive lever 135 The transfer unit 17 is stopped at a standby position along the inside of the front surface 7 of the housing 2. As shown in FIG. 2, the transfer unit 17 in the standby position is located outside the outer peripheral edge of the disk D accommodated in the housing 2.

  When the switching member 91 moves from the position of FIG. 6 in the direction (e) to the position of FIG. 7, the drive lever 135 is rotated counterclockwise by the unit control slot 137, and the drive length of the drive lever 135 is increased. The drive shaft 133 is pushed counterclockwise by the hole 135a, and the transfer unit 17 is rotated counterclockwise with the support shaft 17a as a fulcrum to reach the transfer operation position.

  As shown in FIG. 1, a transmission gear 17b is rotatably supported on the support shaft 17a fixed in the lower housing 3. The power of the transfer motor M1 shown in the block diagram of FIG. 4 is applied to the transmission gear 17b, and the rotational force of the transmission gear 17b is transmitted to the roller shaft 114 in the transfer unit 17, so that the transfer rollers 112 and 113 are moved. Driven by rotation. The transfer unit 17 rotates from the standby position shown in FIGS. 2 and 6 to the transfer operation position shown in FIGS. 4 and 7. The roller shaft 114 is rotated by the transfer motor M1 independently of the rotation operation. Driven.

  As shown in FIG. 1, an area surrounded by the left side surface 9, the rear surface 10, and the ceiling surface 11 of the upper housing 5 is a disk storage area 20, and a plurality of supports 21 are provided in the disk storage area 20. Are arranged in the Z1-Z2 direction which is the thickness direction.

  The upper casing 5 is provided with support body selection means 22. The support body selection means 22 are screw shafts provided at three locations, and each is rotatably supported on the ceiling surface 11. Each of the plurality of supports 21 is slidably fitted in a screw groove of the support selection means 22. When each support body selection means 22 is rotationally driven in synchronization by a selection motor (not shown), each support body 21 is moved in the Z1-Z2 direction by the screw groove, and the support body 21 is selected. . The selected support body 21 is set at a selection position that is substantially the same height as the insertion slot 23, and a large gap is formed between the support body 21 at the selection position and the support body 21 located therebelow.

  The disc D inserted from the insertion port 23 and carried into the housing 2 is installed on the lower surface of the support 21 at the selected position. As shown in FIGS. 2 and 4, holding claws 41, 42, and 43 are provided on the lower surface of each support body 21. The holding claws 41, 42, and 43 are rotatably supported by the support body 21, and the rotation centers thereof coincide with the rotation centers of the respective support body selection means 22. The holding claws 41, 42, 43 are biased by a spring so as to protrude toward the center of the support body 21, and the disk D is formed by the lower surface of the support body 21 and the holding claws 41, 42, 43. Retained. A holding release mechanism (not shown) is provided in the housing 2, and the holding claws 41, 42, 43 of the support body 21 moved to the selected position face the holding release mechanism. When the disk D on the lower surface of the support 21 moved to the selected position is clamped to the turntable 82, the holding claws 41, 42, 43 are rotated by the holding release mechanism, and the holding claws 41, 42, 43 are moved to the disk. The disk D and the support 21 are separated by retreating to a position that does not overlap with D.

  As shown in FIGS. 2 and 4, the transfer unit 17 is provided with optical detectors F <b> 1 and F <b> 2 that constitute an insertion detection member. The optical detectors F1 and F2 are mounted on the unit frame of the transfer unit 17, with the light emitting element on one side and the light receiving element on the other side across the disk D passing through the inside of the transfer unit 17. It is configured to face each other. As shown in FIG. 2, the optical detectors F1 and F2 are arranged at equal distances on the left and right with respect to the center line Oa that is the locus of the center of the disk when the disk D is inserted and ejected. ing. The optical detectors F1 and F2 are located between the first transfer roller 112 and the second transfer roller 113, and are provided closer to the insertion port 23 than the roller shaft 114. The detection outputs of the optical detectors F1 and F2 are given to the detection unit 303 shown in FIG.

  As shown in FIG. 3, a transfer detection substrate 201 is fixed inside the front surface 7 of the housing 2 and below the transfer unit 17. The transfer detection substrate 201 is a metal plate having a flexible printed circuit board attached to the surface. In the transfer detection substrate 201, a fixed portion 201A is bent at a right angle at an end portion on the X2 side, a fixed portion 201B is bent at a right angle at a center portion, and the fixed portion 201A and the fixed portion 201B are fixed to the front surface 7 with screws. ing.

  As shown in FIGS. 3 and 4, mechanical detection switches L 1, R 1, R 2, and R 3 are fixed to the transfer detection substrate 201. The detection switches L1, R1, R2, and R3 have contact operation portions L11, R11, R21, and R31, respectively. The terminals of each detection switch are connected to the wiring pattern of the flexible printed circuit board fixed to the surface of the transfer detection board 201, and the detection output of each detection switch is detected by the detection shown in FIG. To the unit 303.

  The detection switches L1 and R1 are provided at positions close to the center line Oa and function as initial position detection members. The detection switch R2 is further away from the center line Oa than the detection switch R1, and functions as a first movement detection member. The detection switch R2 is farthest from the center line Oa and functions as a second movement detection member.

  As shown in FIG. 3, a right moving member 202A is provided on the X2 side across the center line Oa, and a left moving member 202B is provided on the X1 side. Both the right moving member 202 </ b> A and the left moving member 202 </ b> B are formed of metal plates and are provided inside the front surface 7 of the housing 2.

  As shown in FIGS. 5 (A) and 5 (B), on the front surface 7 of the housing 2, a pair of guide elongated holes 7a and 7a are linearly arranged in the X1-X2 direction on the right side (X2 side) of the center line Oa. A pair of guide long holes 7b, 7b are formed to extend linearly in the X1-X2 direction on the left side (X1 side) of the center line Oa.

  A pair of sliding pins 205A and 205A are fixed to the right moving member 202A, and the respective sliding pins 205A and 205A are slidably inserted into the guide long holes 7a and 7a. The right moving member 202A is slidably supported in the X1-X2 direction on the right side of the center line Oa. A pair of sliding pins 205B and 205B are fixed to the left moving member 202B, and the respective sliding pins 205B and 205B are slidably inserted into the guide long holes 7b and 7b. The right moving member 202A is slidably supported in the X1-X2 direction on the right side of the center line Oa.

  As shown in FIG. 3, a sliding pin 203A, which is a sliding member, is fixed to the right moving member 202A, and a sliding pin 203B, which is a sliding member, is fixed to the left moving member 202B. . The sliding pin 203A and the sliding pin 203B extend in the vertical direction (Z1-Z2 direction), and are disposed inside the housing 2 so as to cross the insertion port 23 vertically.

  As shown in FIG. 3, the right moving member 202A is urged in the X1 direction by a return spring member 206A that is a return urging member, and the left moving member 202B is urged in the X2 direction by a return spring member 206B that is a return urging member. It is energized.

  As shown in FIGS. 3 and 4, the switch pressing member 204A is fixed to the right moving member 202A, and the switch pressing member 204B is fixed to the left moving member 202B. The switch pressing member 204A and the switch pressing member 204B are formed of a metal plate. The contact operation parts R11, R21, R31 of the detection switches R1, R2, R3 located on the right side (X2 side) from the center line Oa are pressed by the right switch pressing member 204A, and the detection switches R1, R2, The output of R3 is switched. The contact operation portion L11 of the detection switch L1 located on the X1 side from the center line Oa is pressed by the left switch pressing member 204B, and the output of the detection switch L1 is switched.

  As shown in FIG. 3, the initial position of the sliding pin 203A is when the right moving member 202A is moved in the X1 direction by the return spring member 206A and the sliding pin 203A is closest to the center line Oa. . At this time, the contact pressing portion R11 of the detection switch R1, which is the initial position detection member, is pressed by the switch pressing member 204A, and the detection switch R1 enters the detection state. Similarly, the initial position of the sliding pin 203B is when the left moving member 202B is moved in the X2 direction by the return spring member 206B and the sliding pin 203B is closest to the center line Oa. At this time, the contact actuating portion L11 of the detection switch L1, which is the initial position detection member, is pressed by the switch pressing member 204B, and the detection switch L1 enters the detection state.

  When the sliding pin 203A and the sliding pin 203B are in the initial position, the facing distance between the sliding pins 203A and 203B is the shortest. At the initial position, the distance between the sliding pin 203A and the center line Oa is equal to the distance between the sliding pin 203B and the center line Oa. The facing distance between the sliding pin 203A and the sliding pin 203B at the initial position is sufficiently shorter than the diameter (12 cm) of the disk D.

  As shown in FIGS. 5A and 5B, a shutter opening / closing mechanism 150 is provided on the front surface 7 of the housing 2.

  The shutter member 151 is formed of a thin metal plate and is disposed outside the front surface 7 of the housing 2. The shutter member 151 has a rectangular shape elongated in the X1-X2 direction, and has an area that can cover the insertion port 23 formed in the front surface 7.

  As shown in FIGS. 5A and 5B, vertical guide elongated holes 7 c and 7 c extending in the vertical direction are formed in the upper portion of the front surface 7 of the housing 2. A pair of sliding pins 154 and 154 are fixed to the inner surface facing the Y2 side of the shutter member 151, and the sliding pins 154 and 154 are slidably inserted into the vertical guide long holes 7c and 7c. As a result, the shutter member 151 is supported on the front surface 7 so as to be movable up and down.

  The shutter member 151 is formed with a pair of right holding pieces 152, 152 extending integrally downward on the right side (X2 side) of the center line Oa. Edge portions of the right holding pieces 152, 152 facing in the X1 direction are inclined holding portions 152a, 152a that gradually move away from the center line Oa as going downward (Z1 direction). Further, on the left side (X1 side) of the center line Oa, the shutter member 151 is formed with a pair of left holding pieces 153 and 153 that integrally extend downward. Edge portions facing the X2 direction of the left holding pieces 153 and 153 are inclined holding portions 153a and 153a that gradually move away from the center line Oa as going downward.

  As shown in FIGS. 5, 6, and 7, a shutter opening / closing member 126 is provided inside the front surface 7 of the housing 2. The shutter opening / closing member 126 is supported by a guide mechanism (not shown) provided inside the housing 2 so as to be slidable in the left-right direction (X1-X2 direction).

  On the shutter opening / closing member 126, opening / closing cams 129 and 129 are formed. The opening / closing cams 129 and 129 are cam long holes that penetrate the shutter opening / closing member 126. Each open / close cam 129 includes a closing portion 129a extending linearly in the X2 direction, an opening portion 129b positioned above the closing portion 129a and extending linearly in the X1 direction, and the closing portion 129a and the opening portion 129b. And an inclination switching portion 129c that connects the two. Slide pins 154 and 154 fixed to the shutter member 151 are slidably inserted into the opening and closing cams 129 and 129.

  As shown in FIGS. 6 and 7, an opening biasing spring 128 is provided inside the housing 2, and the shutter opening / closing member 126 is biased in the X2 direction by the opening biasing spring 128. . As shown in FIG. 5B, when the shutter opening / closing member 126 is moved in the X2 direction by the opening biasing spring 128, the shutter member 151 is lifted by the opening / closing cams 129, 129, and the insertion port 23 is opened. The

  As shown in FIGS. 6 and 7, the shutter opening / closing member 126 is provided with an engagement recess 126 a extending inward of the housing 2. On the other hand, the switching member 91 provided on the mechanism base 15 is provided with a driving protrusion 127. As shown in FIG. 6, when the switching member 91 moves in the (d) direction, the drive protrusion 127 engages with the engagement recess 126a, and the shutter opening / closing member 126 is forcibly moved in the X1 direction. At this time, the shutter member 151 is lowered by the opening / closing cams 129, 129, and the insertion port 23 is closed.

Next, the operation of this disk device will be described.
In the standby mode in which the insertion of the disk D into the disk device 1 is on standby, as shown in FIG. 3, the right moving member 202A provided on the inner side of the front surface 7 of the housing 2 is X1 by the urging force of the return spring member 206A. The left moving member 202B is moved in the X2 direction by the return spring member 206B. The distance between the sliding pin 203A provided on the right moving member 202A and the sliding pin 203B provided on the left moving member 202B is set to an initial position shorter than the diameter of the disk D. The detection switch R1, which is the initial position detection member, is switched to the detection state by the switch pressing member 204A provided on the right moving member 202A, and the initial position detection member is provided by the switch pressing member 204B provided on the left moving member 202B. The detection switch L1 is switched to the detection state.

  In the standby mode, as shown in FIG. 6, the switching member 91 is moved in the direction (d) by the switching motor M2 of the second switching mechanism 16, and the drive protrusion 127 fixed to the switching member 91 is engaged. The shutter opening / closing member 126 integral with the engagement recess 126a is forcibly moved in the X1 direction by engaging with the recess 126a.

  As shown in FIG. 5A, when the shutter opening / closing member 126 moves in the X1 direction, the sliding pins 154, 154 fixed to the shutter member 151 are opened / closed cams 129, 129 formed on the shutter opening / closing member 126. The shutter member 151 is lowered in the Z1 direction by being guided to the closed portions 129a and 129a to reach the closed holding position. By the shutter member 151 lowered to the closed holding position, the insertion port 23 opened on the front surface 7 of the housing 2 is closed.

  As shown in FIG. 5A, when the shutter member 151 is lowered, the inclined holding portions 152a and 152a of the right holding pieces 152 and 152 protruding downward from the shutter member 151 are fixed to the right moving member 202A. The sliding pins 205A and 205A hit the moving pins 205A and 205A and are pushed in the X1 direction by the inclined holding portions 152a and 152a. Similarly, the sliding pins 205B and 205B fixed to the left moving member 202B are pushed in the X2 direction by the inclined holding portions 153a and 153a of the left holding pieces 153 and 153 provided in the shutter member 151.

  As a result, the right side moving member 202A and the left side moving member 202B are reliably moved to the initial positions and held, and are the initial position detecting members, and the detection switches R1 and L1 are reliably detected by the switch pressing members 204A and 204B. Switched. In addition, the sliding pin 203A and the sliding pin 203B are reliably set at the initial position where the facing distance is the shortest.

  That is, the elastic force of the return spring member 206A or 206B is reduced by long-term use, or the movement load of the right moving member 202A or the left moving member 202B in the X1-X2 direction is increased due to the adhesion of dust or dirt. Even in such a case, when the shutter member 151 is closed, the right moving member 202A and the left moving member 202B can be moved to the initial positions, and the detection switches R1 and L1 that are the initial position detecting members are moved. Can be set to detection status.

  When the insertion port 23 is closed by the shutter member 151, the detection switches R1 and L1 can always be in the initial state, so that the control operation can be started from this initial state. As a result, for example, although the shutter member 151 is closed, the detection switch R1 or L1 is not in the detection state, and the control unit 302 cannot perform a normal control operation thereafter. It becomes difficult.

  Further, as shown in FIG. 6, the shutter opening / closing member 126 is directly moved in the X1 direction by the moving force of the switching member 91 in the (d) direction, and the moving force is moved to the shutter via the opening / closing cams 129 and 129. It is transmitted to the member 151. Since the shutter member 151 is lowered to the closed holding position shown in FIG. 5A by the moving force of the switching member 91, the right holding pieces 152, 152 and the left holding pieces 153, 153 provided on the shutter member 151 The moving member 202A and the left moving member 202B can be reliably moved to the initial positions and held.

  In the standby mode, as shown in FIG. 6, since the switching member 91 is moved in the (d) direction, the transmission shaft 138 and the drive lever 135 are rotated clockwise by the unit control slot 137 formed in the switching member 91. The transfer unit 17 is set at a standby position along the inside of the front surface 7 of the housing 2.

  In the control unit 302 shown in FIG. 4, if the detection switches R1 and L1 that are initial position detection members are in the detection state after the disk D is ejected from the insertion slot 23, the disk device 1 is in the standby mode. Judgment is made and a new disk D insertion operation is accepted.

  In the insertion operation, an empty support body 21 among the plurality of support bodies 21 in the disk storage area 20 shown in FIG. 1 is designated by operating an operation button or the like provided on the operation unit or the remote controller. By this operation, the support body selection means 22 that is a screw shaft rotates while the drive unit 14 is moved to the retracted position indicated by the broken line in FIG. The plurality of support bodies 21 are moved in the Z1-Z2 direction by the support body selection means 22, and one designated support body 21 moves to the selection position at the same height as the insertion port 23 and stops.

  Thereafter, the first switching mechanism 12 shown in FIG. 1 operates, the drive unit 14 rotates in the direction (a), and the drive unit 14 reaches the drive position indicated by the solid line in FIG.

  Thereafter, the switching motor M2 of the second switching mechanism 16 is started, the switching member 91 slightly moves in the direction (e) from the position of FIG. 6, and the drive protrusion 127 is disengaged from the engagement recess 126a. The amount of movement of the switching member 91 at this time is a distance by which the driving protrusion 127 is disengaged from the engaging recess 126a and a distance at which the transfer unit 17 does not start to rotate counterclockwise from the standby position shown in FIG.

  When the engaging recess 126a is separated from the drive protrusion 127, the shutter opening / closing member 126 is moved in the X2 direction by the opening biasing spring 128. At this time, as shown in FIG. 5B, the sliding pins 154 and 154 provided on the shutter member 151 are switched from the opening portions 129 a and 129 a of the opening and closing cams 129 and 129 provided on the shutter opening and closing member 126. Passing through the portions 129c and 129c and being guided to the opening portions 129b and 129b, the shutter member 151 is lifted upward to reach the open holding release position.

  As shown in FIG. 5B, when the shutter member 151 is raised, the insertion port 23 is opened. Further, the right holding pieces 152 and 152 are separated from the sliding pins 205A and 205A, and the left holding pieces 153 and 153 are separated from the sliding pins 205B and 205B, and the holding of the right moving member 202A and the left moving member 202B is released.

  As shown in FIG. 2, when the disc D is inserted from the insertion port 23 and the optical detector F1 and the optical detector F2 provided in the transfer unit 17 at the standby position both detect the disc and enter a detection state, A control command for starting the transfer motor M1 is issued from the control unit 302 shown in FIG. 4 to the drive unit 301, and the roller shaft 114 starts to rotate in the loading direction for loading the disk. The disk D is sandwiched between the rotating transfer rollers 112 and 113 and the sandwiching member and is carried toward the inside of the housing 2.

  As shown in FIG. 2, when the loading operation of the disk D is started, the sliding pins 203A and 203B are pushed open by the outer peripheral edge of the disk D, and the right moving member 202A and the switch pressing member 204A move in the X2 direction. Then, the left moving member 202B and the switch pressing member 204B move in the X1 direction. The switch pressing member 204A is separated from the detection switch R1, which is the initial position detection member, so that the detection switch R1 is switched to the non-detection state, and the switch pressing member 204B is separated from the detection switch L1, and the detection switch L1 is switched to the non-detection state. .

  When a disk D having a normal size and a normal shape is carried in, the detection switch R2, which is the first movement detection member, is detected by the subsequent movement of the right moving member 202A and the switch pressing member 204A in the X2 direction. Further, the detection switch R3 which is the second movement detection member is switched to the detection state. The control unit 302 shown in FIG. 4 confirms that the detection switch R2 and the detection switch R3 are sequentially switched to the detection state after the detection switches L1 and R1 are in the non-detection state, and the normal disk D is normally loaded. Judge that it has been.

  When the detection switch R3 is in the detection state, a command is given from the control unit 302 to the drive unit 301 to start the switching motor M2, and the switching member 91 moves greatly in the direction (e) as shown in FIG. The transmission shaft 138 and the drive lever 135 are rotated counterclockwise by a unit control slot 137 formed in the switching member 91. Therefore, as shown in FIGS. 4 and 7, the transfer unit 17 is rotated in the direction (b). The disk D is fed toward the inside of the housing 2 by both the rotational force of the transfer rollers 112 and 113 and the rotational force of the transfer unit 17 in the direction (b), and the disk D stops at the selected position. It is held between the lower surface of the supporting body 21 and the holding claws 41, 42, 43.

  Thereafter, while the disk D is held between the transfer rollers 112 and 113 and the holding member, the drive unit 14 is slightly raised and the center hole of the disk D is clamped to the turntable 82.

  Thereafter, the switching motor M2 of the second switching mechanism 16 is started, the switching member 91 is moved in the direction (d), and the transfer unit 17 is rotated toward the standby position shown in FIG. During this time, since the roller shaft 114 continues to rotate in a direction to carry the disk D in the Y2 direction, the transfer rollers 112 and 113 are separated from the disk D while rolling on the surface of the disk D clamped to the turntable 82.

  The switching member 91 is rotated in the direction (d) and moved to the position shown in FIG. During this time, the driving protrusion 127 provided on the switching member 91 engages with the engaging recess 126a, and the shutter opening / closing member 126 is moved in the X1 direction from the engaging recess 126a. Therefore, as shown in FIG. 5A, the shutter member 151 is lowered by the opening / closing cams 129, 129 provided on the shutter opening / closing member 126 to reach the closed holding position.

  Since the insertion slot 23 is closed by the shutter member 151 in a state where the disk D is clamped to the turntable 82 inside the housing 2, a new disk or the like is erroneously inserted into the housing 2. Can be prevented. Also, the sliding pins 205A and 205A are held by the right holding pieces 152 and 152 provided on the shutter member 151, and the sliding pins 205B and 205B are held by the left holding pieces 153 and 153. The moving member 202B is held at the initial position shown in FIG. 3, and both the detection switches R1 and L1, which are the initial position detection members, are in the detection state. Since the right moving member 202A and the left moving member 202B are held at the initial positions and the detection switches R1 and L1 are surely in a detection state, the detection operation by the detection mechanism shown in FIG. You can always start from the initial position.

  When the insertion port 23 is closed by the shutter member 151, the holding claws 41, 42, and 43 shown in FIG. 2 are rotated, and the holding of the disk D on the lower surface of the support 21 is released. Then, the turntable 82 is rotated to rotate the disk D, and a signal recorded on the disk D is read by the optical head 83 or a signal is recorded on the disk D.

  When ejecting the disk D, the switching motor M2 of the second switching mechanism 16 is started in a state where the disk D is clamped by the turntable 82, and the switching member 91 is moved in the direction (e) from the position of FIG. It is done. At this time, the drive lever 135 is rotated counterclockwise, and the transfer unit 17 is rotated in the (b) direction as shown in FIG. At this time, while the roller shaft 114 rotates in the direction of applying the transfer force in the Y1 direction, the transfer unit 17 rotates in the (b) direction, and the disk D clamped to the turntable 82 is transferred to the transfer rollers 112 and 113. And the clamping member.

  When the switching member 91 moves in the direction (e), the drive protrusion 127 is separated from the engagement recess 126a as shown in FIG. 7, and the shutter opening / closing member 126 is moved in the X2 direction by the opening biasing spring 128. Therefore, as shown in FIG. 5B, the shutter member 151 rises to reach the open holding release position, the insertion port 23 is opened, and the sliding pins 205A and 205A and the holding pins 205B and 205B are held. Is released.

  When the shutter member 151 is released, the clamp of the disk D by the turntable 82 is released. Then, the transfer rollers 112 and 113 rotate in the carry-out direction, the switching motor M2 is further started, the switching member 91 is moved in the (d) direction, and the transfer unit 17 rotates toward the standby position shown in FIG. Move. The amount of movement of the switching member 91 when the transfer unit 17 returns to the standby position is until just before the drive protrusion 127 engages with the engagement recess 126a. The shutter member 151 in FIG. It remains open as shown in (A).

  When the disk D is ejected from the insertion port 23 by both the rotational force of the transfer rollers 112 and 113 and the rotational force of the transfer unit 17, the sliding pins 203A and 203B are driven by the outer peripheral edge of the disk D being ejected. Are moved away from each other. Since the right moving member 202A and the switch pressing member 204A are moved in the X2 direction, and the left moving member 202B and the switch pressing member 204B are moved in the X1 direction, the switch from the detection switch R1 that is in the detection state at the initial position is switched. The switch is separated from the pressing member 204A, the switch pressing member 204B is separated from the detection switch L1, and the switches R1 and L1 are both in the non-detection state.

  The right moving member 202A is further moved in the X2 direction and the left moving member 202B is further moved to the X1 side by the ejecting force of the disk D, and the detection switch R2, which is the first movement detecting member, is in the detection state, and further the second Detection switch R3 which is a movement detection member will be in a detection state. The control unit 302 illustrated in FIG. 4 determines that the disk has been normally ejected when the detection switches R1 and L1 are in the non-detection state and then the detection switch R2 and the detection switch R3 are sequentially in the detection state.

  Further, as the disk D is ejected, the sliding pins 203A and 203B sliding on the outer peripheral edge of the disk D move in a direction approaching the center line Oa by the urging force of the return spring members 206A and 206B shown in FIG. To do. Therefore, immediately after the detection switch R3 enters the detection state, the detection switch R3 enters the non-detection state, and the switch pressing member 204A that moves in the X1 direction is detached from the detection switch R2, and the detection switch R2 enters the non-detection state. . At this time, the transfer roller M1 stops and the rotation of the roller shaft 114 stops. As a result, the disk D is stopped in a state where the end portion on the Y2 side is held between the transfer rollers 112 and 113 stopped at the standby position shown in FIG. 2 and the holding member. Therefore, it is possible to prevent the disk D from being easily dropped from the housing 2 in a state where the disk D protrudes from the insertion port 23 to the outside.

  When the disk D protruding from the insertion port 23 to the outside of the housing 2 is pulled out by hand, the optical detectors F1 and F2 are in a non-detection state, whereby the control unit 302 has completed the ejection of the disk D. to decide. When the optical detectors F1 and F2 are in the non-detection state, the switching motor M2 of the second switching mechanism 16 is started, and the switching member 91 is moved in the (d) direction to reach the position shown in FIG. The drive protrusion 127 is engaged with the engagement recess 126a, the shutter opening / closing member 126 is moved in the X1 direction, and the shutter member 151 is lowered as shown in FIG. Then, the insertion port 23 is closed by the shutter member 151, the sliding pins 205A and 205B are held by the right holding protrusions 152 and 152, and the sliding pins 205B and 205B are held by the left holding pieces 153 and 153. The right moving member 202A and the left moving member 202B are held at the initial positions, and the detection switches L1 and R1 are in the detection state.

  At this time, the control unit 302 determines that the operation state of the disk device 1 has returned to the initial state, that is, the standby mode.

  As shown in FIG. 1, when a disk supported by any one of the supports 21 in the disk storage area 20 is driven, the shutter member 151 is closed as shown in FIG. The drive unit 14 moves to the retracted position indicated by the broken line in FIG. 2, and the support body selection means 22 is driven. When any one of the supports 21 is moved to the selected position by the support selection means 22, the drive unit 14 is moved to the drive position indicated by the solid line in FIG. 2, and the disk D is clamped and driven by the turntable 82.

  In the above description, the disk storage type disk device in which a plurality of supports 21 are provided inside the casing has been described. However, the present invention is not limited thereto, and no support is provided. The present invention is also applied to a disk device that accepts only one disk, and loads and unloads the disks one by one in the rotation drive unit.

  Further, the conveying means is not limited to the one having the transfer unit 17 that itself rotates in the standby position and the transfer operation position, and may be one in which a transfer roller is arranged inside the insertion port of the housing. .

  In the embodiment, the shutter member 151 functions as a holding member that holds the right moving member 202A and the left moving member 202B at the initial position. However, the holding member is provided separately from the shutter member 151. Also good. Alternatively, the holding member or the shutter member may be operated directly by the switching member 91 shown in FIGS.

DESCRIPTION OF SYMBOLS 1 Disc apparatus 2 Housing | casing 14 Drive unit 17 Transfer unit 21 Support body 22 Support body selection means 23 Insertion port 82 Turntable 91 Switching member 112,113 Transfer roller 114 Roller shaft 126 Shutter opening / closing member 126a Engaging recess 127 Driving protrusion 128 Opening Biasing spring 129 Opening / closing cam 151 Shutter member 152 Right holding piece 152a Inclined holding portion 153 Left holding piece 153a Inclined holding portion 202A Right moving member 202B Left moving member 203A, 203B Slide pin 204A, 204B Switch pressing member 205A, 205B Sliding Pins 206A and 206B Return spring member D Disks F1 and F2 Optical detectors R1 and L1 that are insertion detection members Detection switches R2 and R3 that are initial position detection members Detection switches that are movement detection members

Claims (6)

In a disk apparatus having a housing having an insertion port, and a transport mechanism that performs a carry-in operation to carry the disk inserted from the insertion port into the housing and a discharge operation to eject the disk from the housing to the insertion port.
A pair of sliding members that are set to an opposing distance shorter than the diameter of the disk at the initial position and slide on the outer peripheral edge of the disk during loading and unloading operations to widen the opposing distance, and the sliding member is initially An initial position detection member that detects that the position has been moved, and a biasing member that biases the sliding member to an initial position;
A holding member that moves between a holding position that holds the sliding member in an initial position and a holding release position that releases the holding; and
A switching member is provided that moves the holding member to a holding position at least one of when the disk is completely loaded into the housing and when the disk is ejected from the inside of the housing. apparatus.   2. The holding member is a shutter member that opens and closes the insertion port, and the insertion port is closed when the shutter member is in a holding position, and the insertion port is opened when the shutter member is in a holding release position. The disk device described.   3. The disk apparatus according to claim 1, wherein a moving force of the switching member directly acts on the holding member and the holding member is moved to a holding position.   4. The disk device according to claim 1, further comprising a movement detection member that detects that at least one of the sliding members has moved a predetermined distance from the initial position.   The disk can be inserted or the disk can be unloaded when the initial position detecting member detects that the sliding member is in the initial position. Disk unit.   An insertion detection member for detecting insertion of a disc from the insertion port is provided, the initial position detection member detects that the sliding member is in an initial position, and the insertion detection member detects a disc. 6. The disk device according to claim 5, wherein the disk loading operation is started.

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