JP2011108336A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk device on which only a disk having a diameter of 12 cm is loaded and which can surely deliver a foreign object from an insertion port when the foreign object such as a small-diameter disk having a diameter of 8 cm or a card is inserted. <P>SOLUTION: When a disk D is inserted while a movable member 50 is rotated clockwise, the movable member 50 is rotated anticlockwise by its insertion force, and the output of a detection switch S1 is turned on to proceed to a disk delivery operation. In this case, a small-diameter disk D1 or a foreign object may be delivered by a conveyance roller 41 to rotate the movable member 50 clockwise. However, since a return guiding slope 56a extending from the movable member 50 faces the conveyance roller 41, by reversely rotating the conveyance roller 41, the foreign object enters a movable guiding part 51 from the return guiding slope 56a to be surely discharged. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a disk device in which, when a disk is inserted from an insertion opening opened in the housing, the insertion is detected, and the inserted disk is carried into the housing by a transport mechanism.

  A disk device used for in-vehicle use or the like is a so-called slot-in type in which an insertion opening that opens in a slit shape is provided in a housing, and a disk is inserted one by one from the insertion opening. A detection mechanism and a transport mechanism are sequentially arranged inside the insertion slot. When the detection mechanism detects that a disk has been inserted from the insertion slot, the transport mechanism is started and the disk is placed inside the housing. It is carried toward. The loaded disk is clamped by a turntable provided inside the housing, and can be rotated together with the turntable. Alternatively, a disk storage unit that stores a plurality of disks is provided inside the housing, and the disk loaded by the transport mechanism is held in the disk storage unit.

  As a detection mechanism, as described in Patent Document 1 and Patent Document 2 below, there is one in which an optical detection mechanism in which a light emitting element and a light receiving element face each other is provided inside an insertion slot. In this optical detection mechanism, when the disk inserted from the insertion slot enters between the light emitting element and the light receiving element, and the light emitted from the light emitting element and to be detected by the light receiving element is interrupted, the disk is It is determined that it has been inserted, and the transport mechanism is started.

  Further, the disk device described in Patent Document 2 is provided with a pair of selection arms at positions separated left and right inside the insertion slot. Each selection arm is supported so as to be rotatable about a rotation fulcrum provided on the insertion port side, and a contact pin is provided at an end portion of each selection arm facing the inside of the casing. .

  When a large-diameter disk having a diameter of 12 cm is inserted, it is pushed by the outer peripheral edge of the large-diameter disk and the distance between the pair of contact pins is widened. The positioning mechanism is set so that the center of the large-diameter disk carried into the housing can be positioned on the turntable by the turning force of the selection arm at this time. When a small-diameter disk having a diameter of 8 cm is inserted, the small-diameter disk passes between the pair of contact pins and the selection arm does not rotate. Therefore, the positioning mechanism is set so that the center of the small-diameter disk can be positioned on the turntable.

  The disk device described in Patent Document 3 is provided with a rocking plate that rotates in the thickness direction of the disk inserted from the insertion slot, and a driven roller is provided for the rocking plate. The rocking plate is biased so that the driven roller is pushed downward by the force of the spring. Further, a driving roller is provided below the driven roller and inside the casing with respect to the driven roller.

  When the driven roller is lifted by the upper surface of the disk inserted from the insertion port, the swing plate is lifted against the spring force together with the driven roller, and the switch is switched by the swing plate. As the switch is switched, the driving roller is started, and the disk sandwiched between the driving roller and the driven roller is carried into the housing by the rotational force of the driving roller.

JP 2006-196128 A JP-A-11-213506 JP 2001-143351 A

  As described in Patent Document 1 and Patent Document 2, in a disk device that detects a disk inserted from an insertion slot with an optical detection mechanism, a light emitting element is provided so that the disk inserted from the insertion slot can be detected at any time. Needs to be lit at all times or intermittently. Therefore, there is a drawback that power is always wasted. When this disc device is used for in-vehicle use, it is necessary to turn on the light emitting element and wait for the disc to be inserted even when the engine is stopped. Too much.

  As described in Patent Document 2, a pair of detection pins are provided inside the insertion port, and the switch detects that the interval between the detection pins is widened at the outer periphery of the disk inserted from the insertion port, A structure for starting the transport mechanism is also conceivable. In this structure, since it is not necessary to always turn on the optical detection element, it is possible to reduce power consumption during standby waiting for the insertion of a disk. However, since the outer peripheral edge of the disk inserted from the insertion slot is a structure that slides against the detection pin, when an irregular disk or a square card that is not exactly circular is forcibly pushed into the housing from the insertion slot, Even if it is attempted to reverse the transport mechanism and carry them out of the insertion slot, the irregularly shaped disk or card may be caught by the detection pin and cannot be returned to the insertion slot.

  In that respect, the disk device described in Patent Document 3 is loaded with a deformed disk or card because the driven roller is lifted in the disk thickness direction and the switch is switched when the disk is inserted. When it is determined that there is an irregular disk or card by the drive roller, it is easy to carry them out of the insertion slot.

  However, in the disk device described in Patent Document 3, the driven roller supported by the swinging plate is positioned closer to the insertion port than the conveying roller, and the driven roller is placed on the lower side by the biasing force applied to the swinging plate. Has been pressed. Therefore, when the disc is sandwiched from above and below by the drive roller and the driven roller, the disc continues to be pushed downward by the driven roller on the insertion port side from the drive roller, and the lower surface of the disc is always the lower edge of the insertion port. Will be pressed against. Therefore, a load is always applied to the transported disk, and the lower surface of the disk may be damaged by sliding on the lower edge of the insertion slot. Furthermore, since the peripheral edge of the loaded disc is directed upward, the peripheral portion tends to hit a clamper and the like, and it is difficult to position the loaded disc to a predetermined position.

  Furthermore, when an irregularly shaped disc that should not be received originally is erroneously inserted and an attempt is made to carry it out, it is predicted that the rocking plate or the like becomes an obstacle and cannot be reliably carried out.

  The present invention solves the above-described conventional problems, and can detect that a disc has been inserted by a member that moves in the thickness direction of the disc, and can detect even when a deformed disc or card is inserted. An object of the present invention is to provide a disk device that can be reliably carried out without hitting a member or the like.

In the disk device of the present invention, on the back side of the apparatus with respect to the insertion port, a conveyance roller that applies a conveyance force by sandwiching the disk inserted from the insertion port and a fixed guide portion are provided facing each other.
A movable member having a movable guide portion for guiding the disc is provided between the insertion port and the fixed guide portion, and the movable member has a fulcrum on the insertion port side and is not directed toward the thickness direction of the disc. While being supported rotatably from the guide posture toward the guide posture, it is biased toward the non-guide posture,
When the movable member is in a non-guided posture, the disk inserted from the insertion port hits the movable guide part before being sandwiched between the conveyance roller and the fixed guide part, and the disk hitting the movable guide part With the insertion force, the movable member is rotated toward the guide posture, and the disc is guided from the movable guide portion toward the fixed guide portion,
In the movable member, a return guide inclined portion that is inclined in a direction away from the conveying roller as the distance from the fulcrum is formed continuously with the movable guide portion, and the return guide is provided when the movable member is in a non-guide position. The inclined part extends to a position farther from the transport roller than the fixed guide part,
A detection member for detecting that the movable member has rotated to the guide posture is provided.

  In the disk device of the present invention, a movable member that rotates in the thickness direction of the disk is provided between the insertion slot and the fixed guide, and the movable member is rotated by the insertion force of the disk inserted from the insertion slot. Then, the detection member enters a detection state, and the operation shifts to the disk carry-in operation. Since the movable member rotates in the thickness direction of the disc, a non-circular irregular disc or card-like foreign matter is inserted, and when moving to its unloading operation, any shape of foreign matter is a thin plate As long as it is in the shape, it becomes easier to discharge. In particular, since the return guide slope is provided on the movable member, it is possible to prevent the foreign material from being caught by the movable member when the transport roller is reversed and the foreign material is smoothly transported toward the insertion port. It is possible to make it.

  In the present invention, it is preferable that the return guide inclined portion extends to a position facing the conveying roller.

  For example, a protrusion extending further toward the back of the apparatus is provided at the edge of the movable member facing the back of the apparatus, and the return guide inclined part is formed at the protrusion.

  As described above, when the return guide inclined portion extends to a position facing the conveyance roller, when foreign matter such as atypical disk or card is sandwiched between the conveyance roller and the fixed guide portion, these are carried out. The movable member can be rotated toward the guide posture by the foreign matter carry-out output, and the foreign matter can be reliably discharged.

In the present invention, the conveying roller is formed such that the central portion in the axial direction is smaller in diameter than both end portions, and the protruding portion is disposed in a central portion that avoids the both end portions,
When the movable member is in a non-guided posture, the portion of the return guide inclined portion that is closest to the transport roller is located closer to the center of the transport roller than the surface of the transport roller at both ends. It is preferable.

  Since the protruding portion having the return inclination guide portion is located at a portion where the diameter of the transport roller is small, the return inclination guide portion can be prevented from protruding greatly in the height direction of the disk device, and the disk device can be made thin. Easy to configure. In particular, when the movable member is in the non-guided posture, the return guide inclined portion can approach the transport roller to a position closer to the center than both ends of the transport roller, so that the overall height dimension can be easily made thin.

The present invention is provided with an identification detection member that is in a detection state when a regular disk is inserted from the insertion slot and maintains the detection state until the disk reaches a loading completion position in the apparatus,
When the detection member detects that the movable member has reached a guide posture and at least one of when the identification detection member is in a detection state, the transport roller is started in the loading direction,
When the discriminating detection member is in a non-detection state during the subsequent disk carry-in operation, the conveyance roller can be configured to reverse in the carry-out direction.

  In this case, the identification detection member needs to be provided closer to the insertion opening than the transport roller.

Alternatively, in the present invention, when the detection member detects that the movable member has reached the guide posture, the transport roller starts in the loading direction,
During the subsequent disk loading operation, when the detection member detects that the movable member has rotated toward the non-guided posture, the conveyance roller can be configured to reverse in the unloading direction.

  When it is determined by the above detection mechanism that the regular disk has not been normally loaded, the conveying roller is reversed so that foreign matter such as atypical disk or card can be reliably unloaded from the insertion slot.

  In the disk device of the present invention, the movable member provided inside the insertion slot has a fulcrum on the insertion slot side and rotates in the thickness direction of the disk. Further, a return guide inclined portion is provided on the movable member. It has been. For this reason, when a foreign object such as a deformed disk inserted from the insertion port is carried out, the foreign matter is less likely to be caught by the movable member, and is easily carried out toward the insertion port.

  In addition, a foreign member is inserted when it is determined that a foreign object is carried in using the detection member that detects that the movable member has rotated to the guide posture or the detection operation of the identification detection member. It becomes easy to carry out toward the mouth.

The perspective view which shows the whole structure of the disc apparatus of embodiment of this invention, 1 is a right side view of FIG. An exploded perspective view showing a fixed member having a fixed guide portion, a movable member having a movable guide portion, and a transport rotor; It is sectional drawing which shows arrangement | positioning of a fixed guide part and a return inclination part, a movable guide part, and a conveyance roller, (A) is a non-guide attitude | position with a movable member, (B) is a guide attitude with a movable member. A plan view of the disk device showing a state immediately after a regular disk is inserted from the insertion slot, A plan view of a disk device showing an operation in which a regular disk or a foreign object is carried in by a conveying roller; The top view of the disc apparatus which shows the state where the regular disc carried in with a conveyance roller reached the conveyance completion position, A plan view of the disk device when a regular disk is clamped to the turntable, A flowchart showing the operation from the insertion of a regular disc to the completion of loading,

  The disk apparatus shown in FIG. 1 and below can be loaded with a true circular disk D having a diameter of 12 cm such as a DVD (digital versatile disk) or a CD (compact disk) as a regular disk. For example, when a small-diameter disk D1 having a diameter of 8 cm shown in FIG. 6, an irregular disk having an outer periphery of an ellipse or other shape, a rectangular card C, or the like is inserted, these are discharged as foreign matters.

  As shown in FIGS. 5 to 8, the disk device has a housing 1 formed of a metal plate. In the case of an in-vehicle disk device, the size of the housing 1 is, for example, 1 DIN size or 1/2 DIN size, and the housing 1 is embedded and installed in an instrument panel in a vehicle cabin.

  The housing 1 includes a front plate 2 facing the Y1 side, a rear plate 3 facing the Y2 side, side plates 4 and 5 facing the X1 side and the X2 side, and further includes a ceiling plate and a bottom plate. The front plate 2 has an elongated insertion port (not shown) that opens in the left-right direction (X1-X2 direction). A makeup nose made of synthetic resin is attached in front of the front plate 2 of the housing 1, and various operation members and a display device are provided on the front of the makeup nose. The makeup nose has a nose portion insertion port that communicates with the insertion port, and the disc D is inserted into the housing 1 through the nose portion insertion port and the insertion port formed in the front plate 2. Is done.

  As shown in FIGS. 5 to 8, the mechanism unit 10 is housed inside the housing 1. As shown in FIGS. 1 and 2, the mechanism unit 10 has a drive base 11 on the bottom side and a clamp base 12 on the upper side. Both the drive base 11 and the clamp base 12 are formed by bending a metal plate. The drive base 11 is provided with a connecting shaft 13 extending in the X1 direction and the X2 direction on the Y2 side, and an end portion on the Y2 side of the clamp base 12 is rotatably supported by the connecting shaft 13.

  As shown in FIGS. 1 and 2 and FIGS. 5 to 8, a plurality of dampers 15 a, 15 b, and 15 c that elastically support the drive base 11 are provided inside the housing 1. These dampers 15a, 15b, and 15c are configured by enclosing oil in an elastic bag. The dampers 15a, 15b, and 15c are fixed to the inner surface of the housing 1, and support shafts fixed to the drive base 11 are supported by the dampers 15a, 15b, and 15c. After the regular disk D is loaded in the mechanism unit 10, the disk D is rotated while the drive base 11 is elastically supported by the dampers 15a, 15b, and 15c.

  As shown in FIG. 2, a rotation drive unit 20 is provided on the Y1 side of the drive base 11. The rotation drive unit 20 includes a spindle motor fixed on the drive base 11 and a synthetic resin turntable 23 fixed to a rotation shaft of the spindle motor.

  As shown in FIG. 1, an optical head 25 is mounted on the drive base 11. The optical head 25 is movably supported by a guide mechanism provided on the drive base 11 and is provided with a sled mechanism that reciprocates the optical head 25 along the guide mechanism. The optical head 25 is moved in the radial direction of the disk D along the recording surface of the disk D clamped to the turntable 23 by the thread mechanism.

  As shown in FIG. 1, a synthetic resin clamper 27 is rotatably supported at the end of the clamp base 12 on the Y1 side, and the rotating shaft of the clamper 27 is pressed downward (Z2 direction). A leaf spring 26 is provided.

  As shown in FIGS. 1 and 2, a projecting piece 12a projecting in the X1 direction is integrally formed at the end of the drive base 11 on the Y2 side, and a torsion coil spring 17 is attached to the projecting piece 12a. . One arm portion of the torsion coil spring 17 is hung on the drive base 11, the other arm portion is hung on the clamp base 12, and the clamp base 12 is always urged counterclockwise with the connecting shaft 13 as a fulcrum. Has been. That is, the clamp base 12 is always urged to rotate so that the clamper 27 is pressed against the turntable 23.

  As shown in FIG. 2, a lifting shaft 18 protruding in the X1 direction is fixed to the end portion of the clamp base 12 on the Y1 side. When an upward force (Z1 direction) is applied to the lifting shaft 18, the clamp base 12 is rotated clockwise against the urging force of the torsion coil spring 17, and the clamper 27 is separated from the turntable 23.

  As shown in FIGS. 1 and 5, a pair of stopper members 16 a and 16 b that protrude downward are formed on the left and right sides of the clamp base 12. The stopper member is a metal pin, and when the outer peripheral edge of the disk D carried into the housing 1 hits the stopper members 16a and 16a, the center of the disk D is centered on the turntable 23. It is positioned so as to coincide with each other and reaches the loading completion position.

  As shown in FIGS. 1 and 5, the drive base 11 is provided with a right side slider 30a on the X1 side and a left side slider 30b on the X2 side. As shown in FIG. 1, a guide long hole 31 extending in the front-rear direction (Y1-Y2 direction) is opened in the right side slider 30 a, and the guide shaft 19 is fixed to the drive base 11. A plurality of guide elongated holes 31 and guide shafts 19 are provided in one right side slider 30a, but only one set is shown in FIG. By sliding the guide long hole 31 on the guide shaft 19, the right side slider 30a can reciprocate in the Y1-Y2 direction. Similarly, the left side slider 30b is also supported at the X2 side portion of the drive base 11 so as to be capable of reciprocating in the front-rear direction.

  A motor M is provided at the left rear of the drive base 11, and the left slider 30 b is driven in the front-rear direction by the power of the motor M. As shown in FIG. 6, a link slider 46 is provided on the bottom side of the mechanism unit 10 on the Y1 side so as to be movable in the X1-X2 direction. As shown in FIGS. 6 and 8, a reversing lever 47 is provided between the link slider 46 and the right side slider 30a. The reversing lever 47 is supported so as to be rotatable about a support shaft 47a. A connecting shaft 47b provided on one arm portion of the reversing lever 47 is connected to the link slider 46, and a transmission shaft 47c provided on the other arm portion is connected to the right slider 30a.

  When the left slider 30b is moved in the Y1-Y2 direction by the power of the motor M, the moving force is transmitted to the right slider 30a via the link mechanism including the link slider 46 and the reverse lever 47, and the right slider 30a and the left slider 30b are moved in the Y1-Y2 direction in synchronization. In the standby state shown in FIGS. 1 and 2, both the right side slider 30a and the left side slider 30b are moved backward (Y2 direction).

  As shown in FIGS. 5 to 8, a trigger member 14 is provided on the Y2 side of the mechanism unit 10. The trigger member 14 includes an arm 14B that is rotatably supported on the drive base 11, and a detection pin 14A that is fixed to the arm 14B and faces the outer peripheral edge of the loaded disk D.

  When a regular disk D having a diameter of 12 cm is loaded to the loading completion position shown in FIG. 7, the detection pin 14A is pushed at the outer peripheral edge of the disk D, and the arm 14B rotates counterclockwise. At this time, the gear is engaged by the rotational force of the arm 14B, and the transmission path of the power transmission mechanism is established. By establishing the transmission path of this power transmission mechanism, the power of the motor M is transmitted to the left slider 30b as a linear moving force in the Y1 direction, and the right slider 30a and the left slider 30b move in the Y1 direction in synchronization. Be made.

  Hereinafter, the right side slider 30a will be mainly described. The right side slider 30a and the left side slider 30b exhibit the same function, and the shape and structure of the left side slider 30b are the same as those of the right side slider 30a.

  As shown in FIG. 1, a clamp control cam portion 32 is provided on the right side slider 30a. The clamp control cam portion 32 has a cam elongated hole 32a that is directed upward (Z1 direction) toward the front (Y1 direction), and a large-diameter relief hole portion 32b that is continuous with the cam elongated hole 32a on the Y2 side. is doing. The lifting shaft 18 provided on the clamp base 12 is inserted so as to be able to move inside the cam long hole 32a and the escape hole 32b.

  In the standby state shown in FIG. 1, since the right side slider 30a moves backward (Y2 direction), the lifting shaft 18 is lifted in the Z1 direction by the cam elongated hole 32a. At this time, the clamp base 12 is rotated in the clockwise direction, and the clamper 27 is set in a clamp release state away from the turntable 23 upward. When the center hole of the normal disk D is moved onto the turntable 23, the motor M is started and the right side slider 30a is moved forward (Y1 direction), the lifting shaft 18 is moved into the escape hole 32b. Move to. At this time, the clamp base 12 is rotated counterclockwise by the elastic force of the torsion coil spring 17, the center portion of the disk D is pressed against the turntable 23 by the clamper 27, and the disk D is clamped to the turntable 23.

  As shown in FIG. 1, a lock cam portion 33 is provided on the right side slider 30a. The lock cam portion 33 has a lock long hole 33a extending in the front-rear direction and a large diameter relief hole 33b continuous on the Y2 side of the lock long hole 33a.

  In the standby state shown in FIG. 1, when the right side slider 30a is moved in the Y2 direction, the restraining shaft (not shown) fixed to the inner surfaces of the left and right side plates 4 and 5 of the housing 1 is locked. It is held in the hole 33a. At this time, the mechanism unit 10 is held without moving inside the housing 1, and the disk D carried in from the insertion slot is in the gap between the turntable 23 and the clamper 27 far from the turntable 23. Easy to move to. When the right side slider 30a moves in the Y1 direction, the clamper 27 descends and the center portion of the disk D is clamped, and the lock slot 33a is disengaged from the restraint shaft, and the restraint shaft moves to the escape hole portion 33b. At this time, the mechanism unit 10 is not restrained in the housing 1 and is elastically supported by the dampers 15a, 15b, and 15c. While the disk D clamped on the turntable 23 is rotationally driven, external vibrations are easily absorbed as vibrations of the dampers 15a, 15b, and 15c, and a direct influence on the mechanism unit 10 is prevented.

  As shown in FIGS. 1 to 4, a transport mechanism 40 is provided between the insertion port and the rotation drive unit.

  The transport mechanism 40 includes a transport roller 41 and a fixing member 43 that faces the Z1 side of the transport roller 41.

  The fixing member 43 is formed of a synthetic resin material having a small friction coefficient, and is fixed to the lower surface of the ceiling plate of the housing 1 so as not to move. As shown in FIGS. 2 and 4, the fixing member 43 is a fixed guide portion 43 a whose lower surface extends horizontally in the Y1-Y2 direction.

  As shown in FIG. 3, the transport roller 41 is made of a material having a large friction coefficient such as synthetic rubber, and is mounted on the outer periphery of a metal roller shaft 42. The conveyance roller 41 has a maximum diameter at both ends 41a and 41a, a minimum diameter at an intermediate point 41b that bisects the length of the conveyance roller 41 in the X1-X2 direction, and the surface of the conveyance roller 41 is in the X1 direction. It has a tapered surface shape extending in the X2 direction.

  As shown in FIGS. 1, 2, and 4, the right end portion and the left end portion of the roller shaft 42 are supported by the roller bracket 44. The roller bracket 44 is formed of a metal plate.

  As shown in FIG. 1, the roller bracket 44 is formed on the X2 side, with a right support portion 44a formed on the X1 side, a right front portion 44b extending upward from a Y1 side tip portion of the right support portion 44a. Left-side support portion 44c and a left-side front portion 44d extending upward from the Y1-side front portion of the left-side support portion 44c.

  A support hole 44e is opened in the right tip 44b, and a support hole 44f is opened in the left tip 44d. The support hole 44e and the support hole 44f are located on an axis parallel to the X1-X2 axis. A pair of short support shafts 45, 45 are fixed to the inner surfaces of the left and right side plates 4, 5 of the housing 1, and support holes 44 e, 44 f are supported by the respective support shafts 45, 45, and roller brackets Reference numeral 44 is rotatably supported with the support shafts 45 and 45 as pivot points. A tension coil spring (not shown) is hung between the roller bracket 44 and the bottom plate of the housing, and the roller bracket 44 is always urged counterclockwise in FIGS.

  As shown in FIG. 2, a holding hole 44g is formed at the Y2 side end of the right support 44a of the roller bracket 44, and a holding hole 44g is similarly opened at the Y2 end of the left support 44c. Yes. The left and right ends of the roller shaft 42 are inserted into the holding holes 44g and 44g, respectively. As shown in FIG. 1, in the standby state waiting for the insertion of the disk D, the roller bracket 44 is urged counterclockwise by the elastic force of the tension coil spring, and the roller shaft 42 is fixed to the fixing member 43 by this urging force. Is pressed against the fixed guide portion 43a.

  As shown in FIGS. 5 to 8, a pinion gear 48 is fixed to the end portion on the X2 side of the roller shaft 42, and a conveyance motor (not shown) is provided inside the side plate 5 on the left side (X2 side) of the housing 1. A drive gear 49 to which the rotational power is given is provided. As shown in FIG. 4, the roller bracket 44 is in a reverse state from the waiting state for inserting the disk D shown in FIGS. 1 and 2 until the disk D is loaded to a predetermined loading completion position as shown in FIG. 7. The pinion gear 48 meshes with the drive gear 49 because it rotates clockwise. During this time, the rotational force of the transport motor is transmitted from the drive gear 49 to the pinion gear 48, and the roller shaft 42 continuously rotates in the direction in which the disk D is carried.

  As shown in FIGS. 2 and 4, the roller bracket 44 is provided with an opposing guide portion 44h that connects the upper edge of the right support portion 44a and the upper edge of the left support portion 44c. That is, the right support portion 44a is formed by being bent at a right angle downward on the X1 side of the opposing guide portion 44h, and the left support portion 44c is formed by being bent at a right angle on the X2 side of the opposite guide portion 44h.

  The opposing guide surface 44i on the upper surface of the opposing guide portion 44h is a flat surface. In the standby state shown in FIGS. 2 and 4A, the opposing guide surface 44i is inclined so as to be lifted upward (Z1 direction) toward the rear (Y2 direction).

  A movable member 50 is provided between the transport mechanism 40 and the front plate 2 having an insertion port. The movable member 50 is made of a synthetic resin material having the same low friction coefficient as that of the fixed member 43, and the lower surface thereof is a smooth movable guide portion 51. The movable guide 51 is opposed to an opposing guide surface 44 i provided on the roller bracket 44 from above.

  Short support shafts 52 and 52 projecting in the X1 direction and the X2 direction are integrally formed at the front portion (Y1 side) of the movable member 50. Each of the support shafts 52 and 52 is rotatably supported by bearing portions provided on both side plates of the housing. The movable member 50 is urged to rotate clockwise in FIGS. 2 and 4 about the support shafts 52 and 52 by its own weight and the urging force of a spring member (not shown).

  As shown in FIG. 3, stopper portions 53a, 53b, and 53c that rise upward (Z1 direction) and extend backward (Y2 direction) are integrally formed and fixed to the edge portion 50a facing the Y2 side of the movable member 50. On the upper surface of the edge portion on the Y1 side of the member 43, a receiving portion 43b against which the stopper portions 53a, 53b, 53c abut is formed. As shown in FIGS. 2 and 4A, in a standby state in which the disk D is not inserted from the insertion slot, the movable member 50 rotates clockwise and the stopper portions 53a, 53b, and 53c become the receiving portions 43b. It is hit. At this time, the movable member 50 reaches a rotation limit that prevents the movable member 50 from rotating further clockwise. The movable member 50 is in the non-guide position when it is tilted clockwise as shown in FIGS.

  When the movable member 50 is in the non-guided posture, the facing distance between the movable guiding portion 51 and the facing guide surface 44 i is wide on the insertion port side and gradually decreases toward the transport roller 41. At this time, the disk D inserted from the insertion port can hit the movable guide 51 before reaching the transport roller 41.

  When the disc D inserted from the insertion slot is pushed in the Y2 direction, the peripheral edge portion on the Y2 side of the disc D hits the movable guide portion 51, and the movable member is moved by the insertion force of the disc D as shown in FIG. 50 is rotated counterclockwise, and the disk D slides on the movable guide 51 and is guided to a position where it can be clamped between the fixed guide 43 a and the transport roller 41. The posture of the movable member 50 at this time is a guide posture.

  As shown in FIG. 3, a protruding portion 56 protruding from a part of the edge portion 50a facing the Y2 side of the movable member 50 is integrally provided, and a lower surface of the protruding portion 56 facing the Z2 side is returned and inclined. It is part 56a. The return guide inclined portion 56 a is continuous with the movable guide portion 51 and is inclined with respect to the plane of the movable guide portion 51. The inclination direction is a direction gradually moving in the Z1 direction, which is the direction away from the conveying roller 41, as it goes in the Y2 direction, which is the direction away from the support shafts 52, 52. The return guide inclined portion 56a may be a flat inclined surface or a convex curved inclined surface.

  Here, the movable guide portion 51 and the return guide inclined portion 56a are continuous. As shown in FIG. 4, the surface of the movable member 50 is changed from the planar movable guide portion 51 to the return guide inclined portion 56a. It does not mean only the state of transition to the inclined surface, but a smooth curved stepped portion or the like is formed between the plane of the movable guide portion 51 and the inclined surface of the return guide inclined portion 56a. Includes state.

  As shown in FIGS. 3 and 4, a recess 43c is formed in a part of the Y1 side edge of the fixing member 43, and the protrusion 56 faces the recess 43c. As shown in FIG. 4A, when the movable member 50 is in the non-guide position, the protruding portion 56 enters the recessed portion 54c, and the return guide inclined portion 56a provided on the protruding portion 56 faces the surface of the conveying roller 41. To do. At this time, the return guide inclined portion 56 a extends in the Z1 direction, that is, to a position away from the conveying roller 41 than the fixed guide portion 43 a on the lower surface of the fixed member 43.

  As shown in FIG. 4A, the return guide inclined portion 56 a comes closest to the surface of the transport roller 41 when the movable member 50 is in the non-guide posture. As shown in FIG. 3, the return guide inclined portion 56 a does not face both end portions 41 a and 41 a of the transport roller 41, but faces the intermediate point 41 b or the nearest intermediate portion. When the movable member 50 is in the non-guide posture, the return guide inclined portion 56a is located closer to the roller shaft 42 than the roller surfaces at the both end portions 41a and 41a. That is, the return guide inclined portion 56a is opposed to the surface of the intermediate portion of the transport roller 41 with a minimum gap at a position further lowered in the Z2 direction than the roller surfaces at both end portions 14a and 41a. For this reason, even if the movable member 50 is provided with the inclined protrusion 56, it is possible to avoid an increase in the thickness of the apparatus.

  As shown in FIG. 4A, when the movable member 50 is in the non-guide position, the movable guide portion 51 is on the Y1 side with respect to the contact portion between the transport roller 41 and the fixed guide portion 43a, and the return guide inclined portion. Only 56 a extends into the recess 43 c and faces the surface of the transport roller 41.

  As shown in FIG. 5, a substrate 70 facing the upper surface of the movable member 50 is fixed to the lower surface of the ceiling plate of the housing 1, and the lower surface of the substrate 70 is a detection member facing the movable member 50 from above. The detection switch S1 is fixed. The actuator Sa of the detection switch S1 extends obliquely downward and faces the upper surface of the movable member 50. As shown in FIG. 4A, when the movable member 50 is rotated clockwise and is in the non-guide position, the actuator Sa is not pressed and the detection switch S1 is OFF. As shown in FIG. 4B, when the movable member 50 rotates counterclockwise to the guide posture, the actuator Sa is pushed by the upper surface of the movable member 50, and the detection switch S1 is turned on.

  Lifting protrusions 55 and 55 projecting in the X1 direction and the X2 direction are integrally formed at the rear end portion (the end portion on the Y2 side) of the movable member 50.

  As shown in FIG. 1, a roller control cam portion 34 is provided on the Y1 side of the right side slider 30a. The roller control cam portion 34 includes an upper guide portion 34a formed on the upper side, a lower restraint portion 34b formed on the Y2 side and below the upper guide portion 34a, and an upper guide portion 34a and a lower restraint portion 34b. It has a continuous inclined guide hole 34c. An end portion on the X1 side of the roller shaft 42 is slidably inserted into the roller control cam portion 34.

  A guide control cam portion 35 is formed at the end of the right slider 30a on the Y1 side. The guide control cam portion 35 has a lifting guide portion 35a on the Y1 side and a holding guide portion 35b extending on the Y2 side. The lifting guide part 35a is an inclined surface that gradually rises toward the rear (Y2 direction), and the holding guide part 35b is a horizontal plane that extends in the Y1-Y2 direction. The lifting protrusion 55 provided on the movable member 50 is guided by the guide control cam portion 35, and the posture of the movable member 50 is controlled.

  As shown in FIG. 1, in the standby state waiting for the insertion of the disk D, the right side slider 30a is moving in the Y2 direction, so the right end of the roller shaft 42 is in the upper guide 34a of the roller control cam 34. positioned. Since the upper and lower opening widths of the upper guide portion 34a are wider than the diameter of the roller shaft 42, the roller bracket 44 is urged counterclockwise by the tension coil spring as shown in FIGS. 2 and 4A. The roller shaft 42 is pressed against the fixed guide portion 43 a of the fixed member 43.

  Further, in the standby state shown in FIG. 1, the lifting guide portion 35a provided at the end of the right side slider 30a on the Y1 side is separated from the lifting projection 55 in the Y2 direction, and FIG. 2 and FIG. As shown in FIG. 4, the movable member 50 is rotated clockwise and assumes a non-guided posture.

  When a regular disc D having a diameter of 12 cm and a true circle is loaded and the disc D reaches the loading completion position, the motor M is started, and the right side slider 30a and the left side slider 30b move in the Y1 direction in synchronization. As described above, when the right side slider 30a moves in the Y1 direction, a clamping operation is performed and the restraint of the mechanism unit 10 is released.

  When the right side slider 30a and the left side slider 30b move in the Y1 direction, the right end portion of the roller shaft 42 is guided downward by the inclined guide hole 34c of the roller control cam portion 34 and is held by the lower restraint portion 34b. . The roller bracket 44 is rotated in the clockwise direction, and the conveying roller 41 is lowered away from the fixed guide portion 43a and the disk D, and the opposing guide surface 44i is also separated downward from the movable guide portion 51. Further, the lifting protrusion 55 provided on the movable member 50 is lifted by the lifting guide portion 35a of the right side slider 30a and slides on the holding guide portion 35b, and the movable member 50 is shown in FIG. It stabilizes so that it does not move with the horizontal guiding posture shown.

  As shown in FIG. 5, optical detection members 71 </ b> A and 71 </ b> B are provided on the inner side of the front side plate 2 provided with the insertion port. In each of the optical detection members 71A and 71B, a light emitting element that emits detection light and a light receiving element that receives the detection light are provided so as to face each other in the Z direction across the passage path of the disk D.

  As shown in FIGS. 3 and 5, a pair of detection holes 57a and 57b are opened in the movable member 50, and detection light emitted from the light emitting elements of the optical detection members 71A and 71B passes through the detection holes 57a and 57b. Directed downward. A light receiving element that receives the detection light is provided below the passage path of the disk D. When the disk D does not block the detection light from the light emitting element to the light receiving element, the optical detection members 71A and 71B are in a non-detection state, and an H level output signal is obtained. When the disk D blocks the detection light, the light receiving element cannot receive light, and the optical detection members 71A and 71B are in a detection state and an L level output signal is obtained.

  As shown in FIG. 5, the optical detection members 71A and 71B are both disposed between the transport roller 41 and the front plate 2 having the insertion port, and the optical detection member 71B is more front plate than the optical detection member 71A. It is arranged on the side close to 2.

  As shown in FIG. 5, when the line extending in the Y1-Y2 direction through the rotation center of the turntable 23 is a transport center line Oa-Oa, the optical detection members 71A and 71B are both transport center lines Oa-Oa. It is arranged away from the right side (X1 side). While the regular disc D having a diameter of 12 cm is inserted from the insertion slot and carried in the Y2 direction, the center hole Da of the disc D and the ring-shaped transparent portion around it do not pass through the optical detection members 71A and 71B. It has become.

  As shown in FIG. 5, the optical detection members 71 </ b> A and 71 </ b> B are both arranged at the same distance ro from the rotation center of the turntable 23. In addition, as shown in FIG. 8, when the regular disk D reaches the loading completion position and is clamped by the turntable 23, the optical detection members 71A and 71B are both positioned just inside the outer peripheral edge of the disk D. Further, it faces the inner side of the ring-shaped transparent portion that is usually formed on the outer peripheral edge of the disk D.

  Therefore, after the regular disk D is inserted from the insertion slot and both the optical detection members 71A and 71B reach the L level which is the detection state, the disk D is normally loaded and as shown in FIG. Until the center of the disk D is positioned at a normal loading completion position that coincides with the rotation center of the turntable 23, the optical detection members 71A and 71B both maintain the detection state and continue the L level.

  As shown in FIG. 8, a circuit board is provided on the upper surface of the bottom plate of the housing, and a limit switch S2 that is a loading completion detection member is provided on the X1 side of the circuit board. The actuator Sb of the limit switch S2 protrudes in the X1 direction.

  A contact portion (not shown) is provided on the lower surface of the reversing lever 47 for transmitting the moving force of the left slider 30b to the right slider 30a. When the reversing lever 47 rotates clockwise about the support shaft 47a and the right side slider 30a moves most in the Y1 direction, the contact portion contacts the actuator Sb of the limit switch S2, and the limit switch S2 Is switched from OFF to ON. At this time, it is detected that the right side slider 30a and the left side slider 30b have moved most in the Y1 direction, and a control circuit (not shown) determines that a series of loading operations of the disk D has been completed, and the motor M is stopped. .

Next, the operation of the disk device will be described.
FIG. 9 is a flowchart showing a control operation when a regular disc D or a small-diameter disc D1 is inserted from the insertion slot. In the flowchart of FIG. 9, each step is indicated by a symbol “ST”.

(Disc insertion standby state)
As shown in FIGS. 1, 2 and 4A, in the disk insertion standby state before the disk D is inserted, both the right side slider 30a and the left side slider 30b are moved in the Y2 direction. The lifting shaft 18 is lifted by the cam elongated hole 32a of the clamp control cam portion 32 provided in the right side slider 30a, the clamp base 12 is rotated clockwise, and the clamper 27 is separated from the turntable 23 upward. Yes.

  The right end portion of the roller shaft 42 is guided by the upper guide portion 34a of the roller control cam portion 34 formed on the right side slider 30a, and the conveying roller 41 is fixed to the fixing member by the elastic force acting on the roller bracket 44 from the tension coil spring. The conveying roller 41 is pressed against the fixed guide portion 43a. Further, the lifting guide portion 35a at the end of the right side slider 30a on the Y1 side is away from the lifting projection 55, and the movable member 50 is rotated in the clockwise direction by its own weight and the force of the spring, and is in a non-guided posture. It has become.

  In the standby state shown in FIGS. 1 and 2, the transport motor is not energized. Further, although a detection voltage is applied to the detection switch S1, no current flows through the detection switch S1 because the contact of the detection switch S1 is opened without contact. Further, the light-emitting elements of the optical detection members 71A and 71B are not energized, and no detection light is emitted from the light-emitting elements at this time.

(Import operation)
In the standby state shown in FIG. 1 and FIG. 2, when the disc D is inserted in the Y2 direction from the insertion slot (ST1), the peripheral portion facing the Y2 side of the disc D becomes the movable guide portion 51 of the movable member 50 and its It is guided between the opposite guide surface 44i of the opposite guide portion 44h facing downward. In the standby state, the distance between the movable guide 51 and the opposing guide surface 44i is gradually narrowed toward the Y2 side. Therefore, the disk D inserted to the position shown in (i) of FIG. 5 or the position shown in (ii) hits the movable guide 51 before reaching the transport roller 41. When the disk D is pushed in as it is, the movable member 50 is lifted by the upper surface of the disk D to be in the guiding posture shown in FIG. 4B, and the actuator Sa is lifted by the upper surface of the movable member 50 to detect the detection member. The output of the switch S1 is switched from OFF to ON.

  In ST2 shown in FIG. 9, when a control circuit (not shown) recognizes that the output of the detection switch S1 remains OFF, the process proceeds to ST3 and the standby state shown in FIGS. 1 and 2 is continued. .

  In ST2, when the output of the detection switch S1 is switched from OFF to ON, the control circuit starts energizing the light emitting elements of the optical detection members 71A and 71B. Thereafter, the light-emitting elements of the optical detection members 71A and 71B are continuously energized, or intermittent pulsed current is applied to generate detection light.

  The optical detection members 71A and 71B are not energized until the output of the detection switch S1 is turned on, and the optical detection members 71A and 71A are not turned on until the disc D or the like is inserted from the insertion slot and the output of the detection switch S1 is turned on. Since power is supplied to 71B, power consumption during disk insertion standby can be reduced.

  In ST4, it is determined whether or not the output signal of the optical detection member 71A remains at the H level (non-detection state) and the output signal of the optical detection member 71B has changed from the H level to the L level (detection state). .

  What has been inserted is a regular disc D having a circular outer periphery and a diameter of 12 cm, and this regular disc D is inserted from the position shown in FIG. 5 (i) to the position shown in (ii). Then, the detection light of the optical detection member 71B is blocked first by the end portion on the Y2 side of the disk D, and at that time, the detection light of the optical detection member 71A is not blocked yet. Therefore, the output signal of the optical detection member 71B changes from the H level to the L level (detection state), and the output signal of the optical detection member 71A remains at the H level (non-detection state). At this time, the control circuit determines that the disc D that may be carried in is inserted, moves to ST5, starts the transport motor, and starts the roller shaft 42 in the disc loading direction.

  After the detection switch S1 is turned on and the optical detection members 71A and 71B are energized, if the output signal of the optical detection member 71B does not become the detection level L, the roller motor 42 is rotated without starting the conveyance motor. Without energizing, energization of optical detection members 71A and 71B is continued as it is. Then, when the detection switch S1 is turned off, it is determined that there is no longer any insertion from the insertion port, and energization of the optical detection members 71A and 71B is stopped.

  In ST4, when the output signal of the optical detection member 71B remains at the H level in the non-detection state and the output signal of the optical detection member 71A on the back side first becomes the L level in the detection state, the control circuit is inserted. It is determined that the regular disk D is not inserted from the mouth, and the process does not proceed to ST5 and the roller shaft 42 is not started. Also at this time, energization to the optical detection members 71A and 71B is stopped after waiting for the detection switch S1 to be turned off.

  When the regular disc D is normally inserted from the insertion slot and the outer peripheral edge on the Y2 side of the disc D hits the transport roller 41, the output of the optical detection member 71B is as shown in (ii) of FIG. The signal is at the L level in the detection state, but the positional relationship between the transport roller 41 and the optical detection members 71A and 71B is determined so that the output signal of the optical detection member 71A does not enter the detection state. Thus, when the regular disk D is normally inserted, the roller shaft 42 can be started. When any other irregular disk or card is inserted, the roller shaft 42 does not start, and these irregular disks, etc. Is likely to be prevented from being carried into the apparatus.

  As shown in FIG. 5, the optical detection members 71A and 71B are provided only at positions on the right side of the transport center line Oa-Oa, and on the left side of the transport center line Oa-Oa, There is a wide area where no is provided. Therefore, a thin plate-like foreign object such as a small-diameter disk D1 having a diameter of 8 cm, a credit card or a card C having the same size as that is inserted into the insertion slot at a position close to the left side (X2 side) and the detection switch S1 is turned on. Even if it becomes, the probability that the optical detection member 71B will be in a detection state becomes low. Therefore, when these foreign substances are inserted, the roller shaft 42 does not start, and the probability of shifting to the carry-in operation is low.

  In ST5, when the transport motor is started and the roller shaft 42 rotates in the carry-in direction, the peripheral edge portion on the Y2 side of the disk D is guided between the transport roller 41 and the fixing member 43 by the rotational force of the transport roller 41. . Since the elastic force of the tension coil spring acts on the roller shaft 42, the disk D is sandwiched between the transport roller 41 and the fixed guide portion 43 a of the fixing member 43, and the inside of the casing 1 is inward by the rotational force of the transport roller 41. It is carried toward.

  In ST4, the measurement timer is started when the control unit recognizes that the output signal of the optical detection member 71B has changed from H level to L level in ST4. Start measurement.

  Note that the transport motor may be started when the detection switch S1 is turned ON in ST2, or the detection output of the detection switch S1 is ignored, and only the optical detection member 71B is in the detection level L level. If it becomes, you may start a conveyance motor. Then, time measurement may be started simultaneously with the start of the transport roller.

  In ST6, whether the output signal of the optical detection member 71A is switched to the L level that is the detection state while the optical detection member 71B maintains the detection state between the start of time measurement and the elapse of the predetermined time. Monitor whether or not. If the optical detection member 71B does not become the L level before the predetermined time elapses, it is determined that the loaded disc is not the regular disk D, and the process proceeds to ST7, where the transport motor is reversed and the roller shaft 42 is reversed. Let me move to the unloading operation.

  If the output signal of the optical detection member 71A becomes L level within a predetermined time in ST6, the carry-in operation by the rotation of the carry roller 41 is continued, and the process proceeds to ST8.

  In a subsequent carry-in operation, when a regular disk having a diameter of 12 cm is normally carried in by the rotational force of the transport roller 41, the ring-shaped transparent portion around the center hole of the regular disk D or the center hole is optical. The detection members 71A and 71B do not pass through, and the ring-shaped transparent portion on the outer peripheral edge of the disk D does not pass through the optical detection members 71A and 71B. Further, as shown in FIG. 7, even when the center of the regular disk D is positioned at the normal loading position where the center of the regular disk D coincides with the center of the turntable 23, the optical detection members 71A and 71B Opposite the inner side of the ring-shaped transparent part. Therefore, when the regular disk D is being carried in, as shown in FIG. 7, the optical detection members 71A and 71B are both kept at the L level until the positioning of the disk D is completed.

  In the control circuit, if at least one of the optical detection members 71A and 71B is in the non-detection state H level during the carry-in operation, it is determined that the carry-in operation is not a regular disc, and the conveyance is performed. The rollers are reversed, the roller shaft 42 is reversed, and these are discharged from the insertion port.

  That is, after ST6 is established, the control circuit continues the L level in which the optical detection member 71B is in the detection state in ST8, or continues the L level in which the optical detection member 71A is in the detection state in ST9. To monitor. While the establishment of both ST8 and ST9 continues, it is determined that the regular disk D is normally being carried in normally, and the carry-in operation is continued until ST10. Before reaching ST10, ST8 and ST9 are continued. If at least one of the above is not established, the process immediately shifts to ST7 at that time and shifts to the carry-out operation.

(Foreign matter discharge operation)
Even when a small-diameter disk D1 having a diameter of 8 cm that should not be carried in is inserted, the detection switch S1 is turned on, and thereafter the output is set to the L level in the order of the optical detection member 71B and the optical detection member 71A. Then, ST6 shown in FIG. 9 is established, so that the carry motor continues to operate and the carry roller 41 continues to rotate, and as shown in FIG. 6, the small-diameter disk D1 may be carried to a deep position in the Y2 direction. is there.

  However, as shown in FIG. 5, since the distance ro from the rotation center of the turntable 23 to the detection point by the optical detection members 71A and 71B is set to be longer than 4 cm, the center of the small diameter disk D1 is the turntable 23. Before reaching the same position, at least one of the optical detection member 71A and the optical detection member 71B is in a non-detection state. Therefore, the loading of ST10 cannot be completed, and it is possible to shift to ST7 and shift to the operation of carrying out the small-diameter disk D1.

  As shown in FIG. 6, when the small-diameter disk D1 is carried in the Y2 direction, the edge of the small-diameter disk D1 facing the Y1 side is detached from the optical detection member 71B, and at ST7, the process proceeds to the foreign matter discharging operation. The small-diameter disk D1 is sandwiched between the transport roller 41 and the fixed guide portion 43a. Therefore, the conveyance motor in the ejection direction can be given to the small-diameter disk D1 by reversing the conveyance motor immediately after reaching ST7 and rotating the conveyance roller 42 in the conveyance direction.

  In addition, when the Y1 side edge of the small-diameter disk D1 that is being loaded is detached from the optical detection member 71B, the end of the small-diameter disk D1 on the Y1 side faces the movable guide part 51 of the movable member 50. . However, since the facing area between the small-diameter disk D1 and the movable guide portion 51 is small, the movable member 50 is easily rotated clockwise as shown in FIG. It is possible that the edge on the Y1 side is further dislocated to the Y2 side than the edge 50a on the Y2 side of the movable guide portion 51. Alternatively, if the timing for reversing the conveyance motor is slightly delayed when the process proceeds to ST7, the Y1 side end of the small-diameter disk D1 is separated from the Y2 side edge 50a of the movable member 50 when the conveyance motor is reversed. The movable member 50 may come off and rotate clockwise by the spring force to reach the non-guided posture shown in FIG.

  Even in such a state, as shown in FIG. 4A, the return guide inclined portion 56a of the protrusion 56 provided on the movable member 50 faces the transport roller 41, and the return guide inclined portion 56a. Is extended above the fixed guide portion 43a, the edge of the small-diameter disk D1 sandwiched between the transport roller 41 and the fixed guide portion 43a always faces the lower side of the return guide inclined portion 56a. .

  Therefore, the edge on the Y1 side of the small-diameter disk D1 carried out by the reverse rotation operation of the transport roller 41 slides on the return guide inclined portion 56a, and the movable member 50 is rotated counterclockwise, and FIG. The small-diameter disc D1 is reliably discharged toward the insertion port without being caught by the Y2 side edge 50a of the movable member 50.

  As shown in FIG. 6, since the optical detection members 71A and 71B, which are identification detection members, are provided only on the right side (X1 side) of the transport center line Oa-Oa, the small-diameter disk D1 is located with respect to the insertion slot. When inserted near the left side (X2 side), ST4 of FIG. 9 is difficult to be established or ST6 is difficult to be established, and the small-diameter disk D1 is rarely sent into the housing 1 deeply. On the other hand, when the small-diameter disk D1 is inserted to be shifted to the right side (X1 side) with respect to the insertion port, it can be carried deeply into the housing 1 by the transport roller 41 as shown in FIG. As a result, it is possible to reach ST7 and shift to the transport operation.

  Therefore, as shown in FIG. 6, it is necessary to provide a return guide inclined portion 56a at a position where a distance of 8 cm or more cannot be opened on the left side of the right end portion (A) of the disk transport path in the housing. Further, in order to ensure that the small-diameter disc D1 that is carried out can slide on the return guide inclined portion 56a, the return guide inclined portion 56a is located on the right side (X1 side) of the transport center line Oa-Oa, that is, the identification. It is preferable that the optical detection members 71 </ b> A and 71 </ b> B as detection members are provided so as to be offset.

  Further, as shown in FIG. 6, when a card C equivalent to a credit card or the like is erroneously inserted to the right side from the insertion slot and the card C is carried in by the transport roller 41, it is the same as in the case of the small-diameter disk D1. In addition, the process moves to the unloading operation (ST7) before reaching ST10, and these foreign matters are slid on the return guide inclined portion 56a, so that they can be reliably unloaded from the insertion port.

  In the present invention, as a foreign matter detection method other than the operation flow shown in FIG. 9, when the movable member 50 is rotated counterclockwise as shown in FIG. 4B and the detection switch S1 is turned on. The movable member 50 rotates clockwise as shown in FIG. 4 (A) until the carry motor is started and the carry-in operation is started until it is determined that the normal loading operation is completed. When the detection switch S1 is turned off, it may be determined that a foreign object such as the small-diameter disk D1 has been carried in, and the carrying motor may be reversed to shift to the carrying-out operation of ST7. Also in this case, when the small-diameter disk D1 and the like to be carried out pass through the return guide inclined portion 56a, the movable member 50 that has been once rotated clockwise can be rotated counterclockwise, and foreign matter is discharged. Can do.

(Disc clamp operation)
When the regular disk D is further carried in the Y2 direction from the state shown in FIG. 6 and reaches the position shown in FIG. 7, the detection pin 14A constituting the trigger member 14 is moved in the Y2 direction by the outer peripheral edge on the Y2 side of the disk D. The arm 14B is rotated counterclockwise. At the same time, the outer peripheral edge of the regular disk D hits the pair of stopper members 16a and 16b, and the disk D is positioned at a normal loading completion position that is a clampable position.

  When the arm 14B of the trigger member 14 rotates counterclockwise, the motor M starts and the gear of the power transmission mechanism is engaged, and the left slider 30b is moved in the Y1 direction by the power of the motor M. Note that the motor M is also used as a conveyance motor, and the motor M is started in ST5 to rotate the roller shaft 42. Thereafter, in the state of FIG. 7, the power transmission mechanism is established by the rotational force of the arm 14B, and the motor M May be transmitted from the power transmission mechanism to the left slider 30b.

  Thereafter, the right side slider 30a and the left side slider 30b move in the Y1 direction from the position shown in FIG. 7 in synchronization. In this process, the lifting shaft 18 is guided downward by the cam elongated hole 32a of the clamp control cam portion 32 provided in the right side slider 30a shown in FIG. 1, and is moved to the escape hole portion 32b. Therefore, the clamp base 12 is rotated counterclockwise by the urging force of the torsion coil spring 17 with the connecting shafts 13 and 13 as fulcrums, and the clamper 27 is lowered toward the turntable 23.

  Almost simultaneously with the above-described counterclockwise rotation of the clamp base 12, the right end portion of the roller shaft 42 moves from the upper guide portion 34a of the roller control cam portion 34 provided on the right side slider 30a to the inclined guide hole 34c. Guided and further restrained by the lower restraining portion 34b. As a result, the roller bracket 44 is rotated clockwise, and the roller shaft 42 and the transport roller 41 are lowered. The regular disk D riding on the transport roller 41 descends together with the transport roller 41, the center hole Da of the disk D is sandwiched between the turntable 23 and the clamper 27, and the disk D is clamped.

  When the right side slider 30a further moves in the Y1 direction after the transport roller 41 is restrained to the position away from the disk D by the lower side restraint part 34b of the roller control cam part 34, the Y1 of the right side slider 30a moves. The lifting projection 55 is lifted by the lifting guide portion 35a of the guide control cam portion 35 provided at the end on the side, and further held by the holding guide portion 35b. As a result, the movable member 50 is rotated in the counterclockwise direction, the movable guide portion 51 on the lower surface of the movable member 50 assumes a horizontal posture, and moves upward from the clamped disk D. The movable member 50 is shown in FIG. The guide posture shown in FIG.

  When the right side slider 30a moves most in the Y1 direction and the clamping operation of the regular disk D is completed as described above, the contact portion of the reversing lever 47 that drives the right side slider 30a is as shown in FIG. The actuator contacts the actuator Sb of the limit switch S2, and the output of the limit switch S2 is switched from OFF to ON (ST10 in FIG. 9). The limit switch S2 functions as a disk loading completion detection member that detects that the disk D is clamped to the turntable 23.

  In the flowchart shown in FIG. 9, in ST10, it is monitored whether the limit switch S2 is turned on within a predetermined time after the timer measurement is started in ST4. If ST10 is established within the predetermined time, the process proceeds to ST11, where it is determined that the disk loading is completed, and the disk D clamped on the turntable 23 can be rotationally driven in the state shown in FIG.

  On the other hand, if ST10 is not reached within a predetermined time from ST4, it is determined that the disk has not been clamped normally, and the process proceeds to ST7 and the transfer operation is performed.

DESCRIPTION OF SYMBOLS 1 Housing | casing 2 Front plate 10 Mechanism unit 14 Trigger member 16a, 16b Positioning member 20 Rotation drive part 23 Turn table 27 Clamper 30a Left side slider 30b Right side slider 40 Conveying mechanism 41 Conveying roller 43 Fixing member 43a Fixed guide part 43b Receiving part 43c Concave part 50 Movable member 51 Movable guide part 52 Support shaft 53a, 53b, 53c which becomes a rotation fulcrum Stopper part 56 Projection part 56a Return guide inclined part 71A, 71B Optical detection member (identification detection member)
S1 detection switch (detection member)
S2 Limit switch D Regular disc D1 Small-diameter disc C Card

Claims (7)

On the back side of the apparatus from the insertion port, a conveyance roller and a fixed guide portion are provided opposite to each other to sandwich the disk inserted from the insertion port and apply a conveyance force.
A movable member having a movable guide portion for guiding the disc is provided between the insertion port and the fixed guide portion, and the movable member has a fulcrum on the insertion port side and is not directed toward the thickness direction of the disc. While being supported rotatably from the guide posture toward the guide posture, it is biased toward the non-guide posture,
When the movable member is in a non-guided posture, the disk inserted from the insertion port hits the movable guide part before being sandwiched between the conveyance roller and the fixed guide part, and the disk hitting the movable guide part With the insertion force, the movable member is rotated toward the guide posture, and the disc is guided from the movable guide portion toward the fixed guide portion,
In the movable member, a return guide inclined portion that is inclined in a direction away from the conveying roller as the distance from the fulcrum is formed continuously with the movable guide portion, and the return guide is provided when the movable member is in a non-guide position. The inclined part extends to a position farther from the transport roller than the fixed guide part,
A disc device comprising: a detection member that detects that the movable member has rotated to the guide posture.   The disk device according to claim 1, wherein the return guide inclined portion extends to a position facing the conveying roller.   3. The disk device according to claim 1, wherein a projecting portion extending further toward the back of the device is provided at an edge of the movable member facing toward the back of the device, and the return guide inclined portion is formed at the projecting portion. The transport roller is formed such that a central portion in the axial direction is smaller in diameter than both end portions, and the protruding portion is disposed in a central portion that avoids the both end portions,
When the movable member is in a non-guided posture, the portion of the return guide inclined portion that is closest to the transport roller is located closer to the center of the transport roller than the surface of the transport roller at both ends. The disk device according to claim 3. When a regular disc is inserted from the insertion port, a detection state is provided, and an identification detection member is provided that maintains the detection state until the disc reaches a loading completion position in the apparatus,
When the detection member detects that the movable member has reached a guide posture and at least one of when the identification detection member is in a detection state, the transport roller is started in the loading direction,
5. The disk device according to claim 1, wherein when the identification detection member is in a non-detection state during the subsequent disk carry-in operation, the transport roller reverses in the carry-out direction.   The disk device according to claim 5, wherein the identification detection member is provided closer to the insertion opening than the conveyance roller. When the detection member detects that the movable member has reached the guide posture, the transport roller starts in the carry-in direction,
5. The transport roller reverses in the carry-out direction when the detection member detects that the movable member has turned toward the non-guide position during the subsequent disk carry-in operation. The disk device according to any one of claims.

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