JP2012195034A - Disk drive with disk discriminating means - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk drive with disk discriminating means for, when a small-diameter disk is inserted, compulsorily discharging the small-diameter disk to a slot side of the disk drive in a way to conveying it to a predetermined position inside the disk drive.SOLUTION: A first disk detecting member is formed with a first contact pin that moves along an outer peripheral edge of a disk inserted from a slot, and a second disk detecting member is formed with a second contact pin. The first and second disk detecting members are configured to come into contact with the outer peripheral edge of the disk respectively and slide in directions of separating from each other. The disk drive further includes a first switch 9 and a second switch that are switched from ON or OFF by sliding of the first disk detecting member. After the first switch 9 is switched from OFF to ON, when the second switch 10 is not switched from OFF to ON and the first switch 9 is switched from ON to OFF, the disk drive discriminates that the inserted disk is a small-diameter disk and compulsorily discharge it to the slot side.

Description

  The present invention is, for example, a disk device having an insertion port for directly inserting and removing a disk, which is a disk-shaped storage medium called a CD, DVD, or Blu-ray disk, and in particular an outer diameter of the inserted disk. The present invention relates to a disc apparatus provided with disc discriminating means for forcibly ejecting the disc to a slot when a disc with a diameter other than a predetermined outer diameter is inserted.

  The disk device is a general term for all devices equipped with a means for loading a disk as a storage medium and reading and reproducing information recorded on the disk or writing and recording information on the disk. Specifically, a device equipped with a disk device will be described in detail. A CD PLAYER that enables reproduction of a CD (Compact Disc) on which audio information is recorded, and a DVD (Digital Versatile Disc) on which audio information and video information are recorded. DVD PLAYER that enables playback of CD), CD RECORDER, DVD RECORDER, etc. that have both playback and recording means for the CD and DVD. Further, in recent years, there is a Blu-ray Disc as a storage medium for increasing the capacity of recorded information, and there is a disc device corresponding to this Blu-ray disc and a device equipped with the disc device.

  The disk device is roughly divided into means for conveying the disk between a predetermined position inside the apparatus and inside the apparatus (hereinafter simply referred to as a conveying means), and reproducing and / or recording the disk at a predetermined position inside the apparatus. Means (hereinafter simply referred to as recording / reproducing means).

  An example of the transport means includes a tray that can be moved inside and outside the disk device, and the disk is placed on the tray that is transported to a disk replacement position that allows the disk to be replaced outside the device. Means for transporting to a predetermined position inside the apparatus, means for providing a disk device with an insertion port, a roller on the inner surface side of the insertion port, and transporting a disk inserted from the insertion port by the rotational driving force of the roller, etc. There is.

  The recording / reproducing means includes a turntable for rotating the disk at a predetermined position inside the apparatus, and reading and reproducing information recorded in the disk by irradiating the rotating disk with laser light, or the disk A traverse unit having an optical pickup unit capable of writing and recording information as a main component is assembled, and a clamper for holding a disc together with the turntable is provided at a position opposed to the turntable, and the turntable Generally, there is a means for rotating the disc while being clamped by the clamper and reproducing the information recorded on the disc by the optical pickup unit or recording information on the disc.

By the way, there are a large-diameter disk having an outer diameter of 120 mm and a small-diameter disk having an outer diameter of 80 mm. If the disk device is provided with an insertion slot for directly inserting and removing the disk and is compatible with a large-diameter disk and a small-diameter disk, at least the following means are required.
(1) Conveying means for conveying the disc inserted from the insertion port to a predetermined position inside the disc device.
(2) Disc discriminating means for discriminating whether the disc inserted from the insertion slot is a large-diameter disc or a small-diameter disc.
(3) A transport method switching means for switching the transport method of the disk according to the outer diameter of the inserted disk based on the determination result by the disk determination means.
(4) Recording / reproducing means for reproducing the disk or recording on the disk at a predetermined position in the disk device.

  The current situation is that large-diameter disks are widely used in the market. For this reason, there is a disk device for reproducing and / or recording only a large-diameter disk for the purpose of downsizing / thinning the disk device and simplifying the manufacturing process. If the disk device is compatible only with a large-diameter disk, the transfer method switching means (3) can be deleted. However, since the large-diameter disk has an insertion opening that can be inserted, it is possible to insert a small-diameter disk smaller than the large-diameter disk from the insertion opening, and the small-diameter disk is inserted from the insertion opening. Therefore, a means for forcibly ejecting the inserted small-diameter disk to the insertion port side of the disk device or blocking the insertion of the small-diameter disk is required.

  In Patent Document 1, when an optical sensor is arranged at a position corresponding to each of both ends in the radial direction of the disk on the inner surface side of the insertion slot, and a small-diameter disk is inserted from the insertion slot based on a detection signal of the optical sensor. There is described the contents of performing the operation of discriminating that the disc is inserted and drawing the disc when the large-diameter disc is inserted without performing the operation of drawing the disc without discriminating that the disc has been inserted.

  Japanese Patent Laid-Open No. 2004-228688 comprises a pair of detection pins, a detection lever, and three switches as disk discriminating means, and the pair of detection pins and the detection lever are swung by a disk inserted from an insertion slot. As a result, the three switches are turned on or off, and when all the three switches are turned off within a predetermined time, it is determined that the disk inserted is a large-diameter disk, and the disk is inserted into the disk device. When the disk is transported to a predetermined position and all the three switches are not turned OFF even after a predetermined time has elapsed, it is determined that the inserted disk is a small diameter disk, and the disk is forcibly ejected to the insertion slot side. The contents are described.

JP 2007-35223 A JP-A-8-241567

  According to the structure of Patent Document 1, optical sensors are used at both ends in the radial direction on the inner surface of the insertion port, and only a large-diameter disk can be inserted based on the detection signal of the optical sensor. However, a user who does not know that a small-diameter disc cannot be inserted is not performed at all when the small-diameter disc is to be inserted. There is a risk of damaging the disk device in order to forcefully insert the small-diameter disk.

  Further, according to the structure of Patent Document 2, three switches are used to discriminate the inserted disk, and the disk inserted from the insertion slot by detecting the ON or OFF state of the switch is a large diameter disk. It is possible to forcibly eject the small-diameter disk to the insertion port side without providing any special means, as in the case of Patent Document 1, because it is determined whether the disk is a small-diameter disk. It is necessary to cope with a plurality of insertion patterns conceivable when inserting a disc. For example, control corresponding to three patterns is required when the disc is inserted from substantially the center and when the disc is inserted from either of the both end portions (the right end portion or the left end portion). In addition, since the ON / OFF state of the switch is different between the large-diameter disk and the small-diameter disk, control corresponding to each insertion state is necessary, and electrical control may be complicated.

  In addition, a pair of detection pins that swing when the disc is inserted and a detection lever that swings in conjunction with the swing of the detection pin are provided, and the structure of the disc discriminating means is complicated. Furthermore, in order to discriminate the disk, it is necessary to arrange the switches at different positions so that the three switches are turned on or off by swinging the pair of detection pins and the detection lever. Therefore, there is a concern about an increase in the size of the disk device.

  The present invention has been made in view of the above-described points, and an object of the present invention is to minimize the number of switches and the number of patterns to be discriminated to discriminate the disc inserted from the insertion slot of the disc device. When the disc inserted from the insertion slot is a large-diameter disc, an operation of transporting to a predetermined position inside the disc device is performed, and when the disc inserted from the insertion port is a small-diameter disc, a transport operation is performed. An object of the present invention is to provide a disk device provided with disk discriminating means for performing an operation of detecting and forcibly ejecting it to the insertion slot side.

  A disc apparatus comprising disc discriminating means according to claim 1 is in contact with a frame, an insertion port formed in the frame for directly inserting / removing a disc, and an outer peripheral edge of the disc inserted from the insertion port, A first abutting pin and a second abutting pin that move along the outer peripheral edge of the first abutting pin, a first abutting pin and a first rack gear, which are slidably attached to the frame; A disk detection member, a second disk detection member that is slidably attached to the frame by forming the second contact pin and the second rack gear, and the first rack gear and the second rack gear. A pinion gear meshing with a rack gear, a first urging means for urging the first disk detection member and the second disk detection member in a direction close to each other, and the first disk The first switch and the second switch that are switched on or off by sliding the intelligent member or the second disk detection member, and turning on or off the first switch and the second switch. A disk device comprising: a motor that detects and rotates forwardly, reversely, or stops; and a roller that is rotated by the rotational driving force of the motor, wherein the first rack gear and the second rack gear include Respectively, and the first switch is switched on or off in accordance with the sliding of the first disk detection member or the second disk detection member before the second switch. When the first switch is switched from OFF to ON by inserting the disc from the insertion slot, the mode is set. Is rotated forward and the disk is transported by the roller toward a predetermined position in the disk device. After that, when the second switch is switched from OFF to ON, the roller causes the disk to move inside the disk device. When the second switch is not turned ON and the first switch is switched from ON to OFF, the motor is driven in reverse and the disk is driven by the roller. Is forcibly discharged to the insertion port side of the disk device.

  A disc device comprising the disc discrimination means according to claim 2 is the disc device comprising the disc discrimination means according to claim 1, wherein the first switch and the second switch slide. The first disk detection member or the second disk detection member is arranged in parallel so as to be switched ON or OFF.

  A disc device provided with disc discriminating means according to claim 3 is a disc device provided with disc discriminating means according to claim 1 or 2, and is slidably attached to the frame. And a slider that slides in a direction orthogonal to the sliding direction of the first disk detection member or the second disk detection member, and the first disk detection member or the first disk by a sliding operation of the slider. The motor is stopped when the first switch is switched from OFF to ON via the second disk detection member.

  According to the configuration of the present invention as described above, the position where the first contact pin and the second contact pin are moved in contact with each other by the missing teeth formed in the first rack gear and the second rack gear, that is, The disc can be inserted only in the approximate center position of the insertion slot. Then, when the disc inserted from the substantially central position of the insertion slot is a large-diameter disc, the operation until it is transported to a predetermined position inside the disc apparatus, and the disc inserted from the approximate central position of the insertion slot is a small-diameter disc. In this case, the operation of detecting a small-diameter disk in the middle of the carrying operation and forcibly ejecting it to the insertion slot side of the disk device is realized by two switches, and the pressing operation of the two switches By using the first disk detection member (or the second disk detection member), it is possible to realize a discriminating means for a disc inserted with a simpler structure as compared with the prior art.

  Further, by limiting the place where the disc can be inserted to the substantially center position of the insertion slot, for example, there is no need to consider the discrimination pattern when inserting a small-diameter disc from the end of the insertion slot. It is also possible to simplify the electrical control required for this.

The perspective view of the disc apparatus in the Example of this invention. 1 is a plan view of a disk device in an embodiment of the present invention. The perspective view which shows the disc detection member and pinion gear in the Example of this invention. The partial schematic perspective view which shows the case where it inserts so that the outer periphery of a disk may contact | abut only to the 1st contact part from the insertion opening of the disk apparatus in the Example of this invention. The partial schematic perspective view of the disc apparatus which shows the state by which the sliding operation of the 1st disc detection member and the 2nd disc detection member was controlled by the missing tooth from the state of FIG. The partial schematic perspective view which shows the case where it inserts so that the outer periphery of a disk may contact | abut only to a 2nd contact part from the insertion port of the disk apparatus in the Example of this invention. FIG. 7 is a partial schematic perspective view of the disk device showing a state in which the sliding operation of the first disk detection member and the second disk detection member is restricted by the missing teeth from the state of FIG. 6. The partial schematic perspective view which shows the case where it inserts so that the outer periphery of a disk may contact | abut to the 1st contact part and the 2nd contact part from the insertion port of the disk apparatus in the Example of this invention. FIG. 9 is a partial schematic perspective view showing a state where the first disk detection member and the second disk detection member are separated from each other from the state of FIG. 8. The perspective view which shows the power transmission mechanism of the roller in the Example of this invention. The top surface side perspective view which shows the rocking | swiveling member in the Example of this invention. The bottom side perspective view which shows the rocking | swiveling member in the Example of this invention. 1 is a bottom perspective view of a disk device in an embodiment of the present invention. The top surface side perspective view of the slider single-piece | unit in the Example of this invention. The bottom side perspective view of the slider single-piece | unit in the Example of this invention. 1 is a schematic perspective plan view of a disk device showing a state before a disk is inserted in an embodiment of the present invention. 1 is a schematic perspective plan view of a disk device showing a state where a disk is inserted and a support lever is rocked in an embodiment of the present invention. 1 is a schematic perspective plan view of a disk device showing a state where a slider slides in an embodiment of the present invention and a disk has been inserted. FIG. FIG. 2 is a schematic plan view showing a case where a small-diameter disk is inserted from an insertion port, which is a disk device in an embodiment of the present invention. FIG. 20 is a schematic plan view showing a case where a small-diameter disk is further inserted into the disk device from the state of FIG. 19 and the first switch is turned on. The schematic plan view which shows the case where a small diameter disc is conveyed inside a disc apparatus with the rotational force of a roller from the state of FIG. 20, and a 1st switch is turned OFF. FIG. 2 is a schematic plan view showing a case where a large-diameter disk is inserted from an insertion port, which is a disk device in an embodiment of the present invention. FIG. 23 is a schematic plan view showing a case where a larger-diameter disk is further inserted into the disk device from the state of FIG. 22 and the first switch is turned on. FIG. 24 is a schematic plan view showing a case where a large-diameter disk is transported into the disk device by the rotational force of a roller from the state of FIG. 23 and the second switch is turned on. FIG. 25 is a schematic plan view showing a case where the large-diameter disk is further conveyed into the disk device by the rotational force of the roller from the state of FIG. 24 and the second switch is turned off. FIG. 26 is a schematic plan view showing a case where the large-diameter disk is further transported into the disk device by the rotational force of the roller from the state of FIG. 25 and the first switch is turned off. FIG. 27 is a schematic plan view showing a case where the slider slides from the state of FIG. 26 and the first switch is turned on again. The flowchart figure which shows the discriminating operation | movement of the insertion disk in the Example of this invention, and the forced discharge operation | movement of a small diameter disk.

  Embodiments as the best mode for carrying out the present invention will be described below with reference to FIGS. It should be noted that the present invention can be easily applied to configurations other than those described in the embodiments without departing from the spirit of the present invention.

  FIG. 1 is a perspective view of a disk device according to an embodiment of the present invention. Reference numeral 1 is a disk device, 2 is a disk, 3 is a frame constituting the appearance of the disk device 1, and 4 is a disk 2 that can be directly inserted and removed. It is an insertion port formed in the frame 3. As shown in the figure, when the disc 2 is inserted from the insertion port 4 formed in the frame 3 of the disc device 1, the disc 2 is conveyed to a predetermined position inside the disc device 1 by the rotational force of a roller described later. Is done. Information can be read from or written to the disk 2 that has reached a predetermined position inside the disk device 1, and the disk 2 can be reproduced or recorded.

  FIG. 2 is a plan view of the disk device in the embodiment of the present invention, and FIG. 3 is a perspective view showing the disk detection member and the pinion gear in the embodiment of the present invention. A first disk detection member 5 and a second disk detection member 6 that are slidable in directions close to or away from each other are provided on the upper portion of the frame 3 in the vicinity of the insertion port 4. A first rack gear 5a is formed on the first disk detection member 5, and a second rack gear 6a is formed on the second disk detection member 6, and the first rack gear 5a and the second rack gear are formed. 6a is provided with pinion gears 7 meshing with each other. The first disk detection member 5 and the second disk detection member 6 are constantly urged in the direction of approaching each other by a coil spring 8 serving as a first urging means.

  Further, the first disc detection member 5 and the second disc detection member 6 are respectively provided with a first abutment pin 5c and a second abutment that abut against the outer peripheral edge of the disc 2 inserted from the insertion port 4. The pin 6c is integrally formed. The disc 2 inserted from the insertion port 4 first comes into contact with the first contact pin 5c and the second contact pin 6c. The first disk detection member 5 integrally formed with the first contact pin 5c and the second disk detection member 6 formed integrally with the second contact pin 6c Due to the pressing force of the user pressing in the insertion direction, the coil springs 8 slide against each other against the biasing force of the coil spring 8.

  The first rack gear 5a formed on the first disk detection member 5 is provided with a missing tooth 5b, and the first rack gear 6a formed on the second disk detection member 6 is provided with a missing tooth 6b. Provided. This is provided to prevent only one of the first disk detection member 5 and the second disk detection member 6 from sliding due to the pressing force of the inserted disk 2, in other words. The inserted disc 2 is used as means for inserting from the substantially center position of the insertion port 4.

  Here, the insertion of the disk 2 into the insertion slot 4 will be described in further detail with reference to FIGS.

  FIG. 4 is a partial schematic perspective view showing a case where the outer peripheral edge of the disc is inserted from the insertion opening of the disc device in the embodiment of the present invention so as to contact only the first contact portion. As shown in the figure, when the disc 2 is inserted with a deviation from the left side of the insertion slot 4, the outer peripheral edge of the disc 2 is the first contact pin 5 c formed on the first disc detection member 5. The first disk detection member 5 slides in the direction of arrow A by the pressing force of the disk 2. As the first disk detection member 5 slides, the pinion gear 7 that meshes with the first rack gear 5a rotates in the direction of arrow B, and the pinion gear 7 moves to the same direction as the first rack gear 5a. The second disk detection member 6 having the meshed second rack gear 6a slides in the direction of arrow C.

  FIG. 5 is a partial schematic perspective view of the disk device showing a state in which the sliding operation of the first disk detection member and the second disk detection member is restricted by the missing teeth from the state of FIG. When the teeth of the pinion gear 7 approach the missing teeth 5b of the first rack gear 5a, another tooth tip of the pinion gear 7 hits the tooth tip of the second rack gear 6a, forcing the rotation of the pinion gear 7 To stop. This occurs because only the first disk detection member 5 slides due to the insertion of the disk 2, and the second rack gear 6 a formed on the second disk detection member 6 and the pinion gear 7 mesh with each other. This is because the timing is shifted by the missing tooth 6b. As a result, the outer peripheral edge of the inserted disk 2 comes into contact, and the first disk detection member 5 that slides by the pressing force of the disk 2 and the second disk detection member that slides through the pinion gear 7. 6 cannot slide from the state shown in FIG.

  FIG. 6 is a partial schematic perspective view showing the case where the disc is inserted so that the outer peripheral edge of the disc comes into contact with only the second contact portion through the insertion opening of the disc device in the embodiment of the present invention. As shown in the figure, if the disk 2 is inserted with a deviation from the right side of the insertion port 4 in the drawing, the outer peripheral edge of the disk 2 is the second contact pin 6c formed on the second disk detection member 6. The second disk detection member 6 slides in the direction of arrow C by the pressing force of the disk 2. As the second disk detection member 6 slides, the pinion gear 7 meshed with the second rack gear 6a rotates in the direction of the arrow B, and the pinion gear 7 is moved in the same manner as the second rack gear 6a. The first disk detection member 5 having the first rack gear 5b that meshes slides in the direction of arrow A.

  FIG. 7 is a partial schematic perspective view of the disk device showing a state in which the sliding operation of the first disk detection member and the second disk detection member is restricted by the missing teeth from the state of FIG. As in the case where the disk 2 is inserted with a deviation from the left side of the insertion port 4 in the drawing, when the teeth of the pinion gear 7 approach the missing teeth 6b of the second rack gear 6a, the teeth of the first rack gear 5a touch the tooth tips. Another tooth tip of the pinion gear 7 hits and the rotation of the pinion gear 7 is forcibly stopped. This occurs because only the second disk detection member 6 slides due to the insertion of the disk 2, and the first rack gear 5 a formed on the first disk detection member 5 and the pinion gear 7 mesh with each other. This is because the timing is shifted by the missing tooth 5b. As a result, the outer peripheral edge of the inserted disk 2 abuts, the second disk detection member 6 that slides by the pressing force of the disk 2, and the first disk detection member that slides via the pinion gear 7. 5 cannot slide from the state shown in FIG.

  FIG. 8 is a partial schematic perspective view showing a case where the disc is inserted so that the outer peripheral edge of the disc comes into contact with the first contact portion and the second contact portion through the insertion opening of the disc device in the embodiment of the present invention. As shown in the figure, when the disc 2 is inserted from the approximate center of the insertion slot 4, the outer peripheral edge of the disc 2 is connected to the first contact pin 5 c formed on the first disc detection member 5 and the first contact pin 5 c. The first disc detection member 5 is slid in the direction of the arrow A by the pressing force of the disc 2 to contact the second contact pin 6c formed on the second disc detection member 6. The disk detection member 6 slides in the direction of arrow C by the pressing force of the disk 2.

  FIG. 9 is a partial schematic perspective view showing a state in which the first disk detection member and the second disk detection member are separated from each other from the state of FIG. When the teeth of the pinion gear 7 reach the missing teeth 5c of the first rack gear 5a and the missing teeth 6c of the second rack gear 6a, the pinion gear 7 meshes with the first rack gear 5a and the second rack gear 6a. However, the first disc detection member 5 and the second disc detection member 6 are slid in a direction away from each other up to a position past the missing teeth 5c and the missing teeth 6c. By moving, the first rack gear 5a and the second rack gear 6a are engaged with the pinion gear 7 again and rotated. That is, the first contact pin 5c and the second contact pin 6c come into contact with the outer peripheral edge of the inserted disc 2 so that the first disc detection member 5 and the second disc detection member 6 are almost simultaneously. By sliding, the sliding restriction of the first disk detection member 5 or the second disk detection member 6 by the missing tooth 5c or the missing tooth 6c can be released. As a result, the first disk detection member 5 having the first rack gear 5a and the second disk detection member 6 having the second rack gear 6a are separated from each other by the pressing force generated when the disk 2 is inserted. Slide in the direction of

  The restriction of sliding of the first disk detection member 5 or the second disk detection member 6 by the missing tooth 5c or the missing tooth 6c is, in other words, restriction of the insertion position of the disk 2 with respect to the insertion port 4. It becomes. That is, an object is to insert the disk 2 inserted from the insertion port 4 of the disk device 1 from the substantially central position of the insertion port 4 as much as possible. The disks that can be used in the disk device 1 shown in this embodiment are roughly classified into a large-diameter disk having an outer diameter of 120 mm and a small-diameter disk having an outer diameter of 80 mm. The insertion port 4 is generally large enough to insert a large-diameter disc. In the present embodiment, the disk can be inserted from the substantially central position of the insertion port 4 regardless of whether a large-diameter disk or a small-diameter disk is inserted. The disk 2 shown in FIGS. 4 to 9 is a large-diameter disk, and mentions that the same effect is obtained when a small-diameter disk is inserted, and the details are omitted.

  Next, conveying means for conveying the disc inserted from the insertion port 4 will be described. As shown in FIG. 2, a first switch 9 and a second switch 10 that are switched ON or OFF by sliding the first disk detection member 5 are provided on the frame upper part 3 c of the frame 3. The switch board 11 provided together is attached. The first switch 9 and the second switch 10 determine the outer diameter of the disk 2 inserted from the insertion slot 4 and control forward drive, reverse drive, or stop of a motor that rotates a roller to be described later. There is to do.

  Specifically, when the first disk detection member 5 sliding along the outer edge of the disk 2 inserted from the insertion port 4 of the disk device 1 presses the first switch 9, the motor rotates normally. The roller rotates to convey the disk 2 to a predetermined position inside the disk device 1 by the rotational driving force of the motor. When the disk 2 reaches a predetermined position inside the disk device 1, the first disk detection member 5 presses the first switch 9 again, the motor stops, and the disk 2 is The roller that has been rotated to convey the disk device 1 to a predetermined position also stops.

  On the other hand, the second switch 10 is provided to stop a roller that rotates to convey the disk 2 from a predetermined position inside the disk device 1 to the insertion slot 4. That is, when the first disk detecting member 5 slides from a state where the second switch 10 is pressed (ON) to a position where the pressed state is released (OFF), the motor stops and the disk 2 is moved. The roller that has been rotating to convey to the insertion port 4 also stops. The “conveyance” described in the present embodiment refers to loading the disk 2 from the insertion port 4 of the disk device 1 to a predetermined position inside the disk device 1 or from the predetermined position inside the disk device 1 to the disk. The term “unloading the disc to the insertion port 4 of the apparatus 1” is generally referred to, and the description will be continued below.

  Next, a power transmission mechanism of a roller that conveys the disk 2 inserted from the insertion port 4 will be described. FIG. 10 is a perspective view showing a power transmission mechanism of a roller in the embodiment of the present invention. In this embodiment, a motor 21 is disposed on the rear side of the disk device 1, and a pulley 22 is attached to the tip of the motor 21. A pulley gear 24 in which a pulley and a gear are integrally formed with a space from the motor 21 is disposed, a belt 23 is hung on the pulley 21 and the pulley gear 24, and the pulley gear is driven by the rotational driving force of the motor 21. 24 is configured to rotate.

  On the other hand, on the inner surface side of the insertion port 4 and on the rear side of the first contact pin 5c and the second contact pin 6c, a roller 17 that contacts from the lower surface side of the inserted disk 2 is provided. Provided. The roller 17 is rotatably attached to an end portion of a swing member 18 that can swing about shafts (hereinafter referred to as swing member rotating shafts) 18a, 18a. The swinging member 18 is constantly urged by the second urging means in a direction in which the roller 17 comes into contact with the disk 2 inserted from the insertion port 4, and details will be described later. In addition, the roller 17 has a shape in which the diameter decreases from both ends toward the center. This is performed in order to prevent damage or contamination due to contact of the roller 17 with the recording surface of the disk directly in contact with the vicinity of the outer peripheral edge of the disk 2 inserted from the insertion port 4.

  A gear (hereinafter referred to as a roller gear) 20 is attached to one end of the roller 17. This is provided to transmit the rotational driving force of the motor 21 to the roller 17. Further, between the pulley gear 24 and the roller gear 20, power for converting the rotational speed of the motor 21 to a speed suitable for transporting the disk 2 and for sliding a slider described later is transmitted. Therefore, a gear mechanism 25 constituted by a plurality of gears is arranged.

With the above-described configuration, the disk 2 inserted from the insertion port 4 of the disk device 1 is conveyed to a predetermined position inside the device by the roller 17 that is rotated by the rotational driving force of the motor 21. The rotation of the roller 17 is performed according to the following procedure.
(1) The disc 2 is inserted from the insertion port 4 of the disc device 1.
(2) The first contact pin 5c and the second contact pin 6c contact the outer peripheral edge of the disc 2, and the first disc detection member 5 and the second disc detection member 6 slide in a direction away from each other. Move.
(3) The first disk detection member 5 that slides with the insertion of the disk 2 presses the first switch 9 disposed on the switch board 11, and the first switch 9 is turned from OFF to ON. Switch.
(4) When the first switch 9 is switched from OFF to ON, the motor 21 is driven forward.
(5) The rotational driving force of the motor 21 is transmitted to the roller 17 via the pulley 22, the belt 23, the pulley gear 24, the gear mechanism 25, and the roller gear 20, and the roller 17 transfers the disk 2 to the predetermined inside the disk device 1. Rotate to transport to position.

  Next, the swinging member attached with the roller 17 will be described in detail. FIG. 11 is a top perspective view showing a swing member in an embodiment of the present invention, FIG. 12 is a bottom perspective view of the same, and FIG. 13 is a bottom perspective view of a disk device in an embodiment of the present invention. As shown in the figure, a roller 17 is rotatably attached to the swing member 18 on the rear side, and a shielding portion 18b is integrally formed on the front side. Further, rocking member rotating shafts 18a, 18a are formed at both ends of the rocking member 18, and one end of a coil spring 19 as a second biasing means is engaged with the bottom surface side of the rocking member 18. A locking portion (hereinafter referred to as a rocking member side locking portion) 18c to be stopped is formed. The rocking member side locking portion 18c is formed in front of the rocking member rotating shafts 18a, 18a, and the other end of the coil spring 19 is a locking portion (hereinafter referred to as frame) formed on the frame 3. (Referred to as a side locking portion) 3a. That is, the rocking member 18 is in a state in which the shielding portion 18b is lowered and the roller 17 is raised by the urging force of the coil spring 19 with the rocking member rotating shafts 18a and 18a as fulcrums.

  By maintaining the above-described state by the biasing force of the coil spring 19, the roller 17 can be brought into contact with the outer peripheral edge on the lower surface side of the disk 2 inserted from the insertion port 4. The shield 18b is provided to prevent the insertion of another disk when the disk 2 can be reproduced or recorded at a predetermined position inside the disk device 1. More specifically, a protruding portion 18d is formed at one end of the swinging member 18 separately from the swinging member rotating shaft 18a. By pressing the protruding portion 18d with a slider described later, the swinging member 18 is pressed. The moving member 18 swings so that the shielding portion 18b rises against the biasing force of the coil spring 19 with the swinging member rotating shafts 18a and 18a as fulcrums. And the insertion of another disk is prevented by raising the shielding part 18b.

  The coil spring 19 is preferably provided in the vicinity of the protrusion 18d of the swing member 18. This is to suppress twisting of the rocking member 18 that forcibly rocks against the urging force of the coil spring 19. The swinging member 18 that swings around the swinging member rotating shafts 18a and 18a by a slider, which will be described later, presses the protruding portion 18d, is constantly biased by the coil spring 19, so that, for example, If the structure is such that the coil spring 19 is provided on the other end side of the swinging member 18 where the projecting portion 18d is not formed, the swinging member 18 has a biasing force of the coil spring 19 and the coil spring 19. Torsion is generated by the force for forcibly swinging the swing member 18 against the urging force, causing a problem in the swing operation of the swing member 18, or being attached to the swing member 18. It can be considered that the transfer of the disk 2 by the roller 17 is affected.

  By the way, a support lever 14 that can swing around the support lever rotating shaft 15 as a fulcrum and a slider that can slide in the front-rear direction of the disk device 1 are attached to the frame upper part 3c (see FIG. 2). The support lever 14 is formed with a third contact pin 14a, and the third contact pin 14a contacts the outer peripheral edge of the disk 2 conveyed by the roller 17 rotating from the insertion port 4, Since the disk 2 presses the third contact pin 14a backward by the conveying force, the support lever 14 swings around the support lever rotating shaft 15 as a fulcrum. The support lever 14 and the slider 16 are connected, and the slider 16 moves slightly in conjunction with the swinging motion of the support lever 14 that swings as the disk 2 is inserted. The slider 16 is slid by the rotational driving force of the motor 21.

  Next, the specific shape and means of the slider will be described with reference to FIGS. FIG. 14 is a top perspective view of the slider alone in the embodiment of the present invention, FIG. 15 is a bottom perspective view of the same, and FIG. 16 is a schematic perspective plan view of the disk device showing a state before the disk insertion in the embodiment of the present invention. 17 is a schematic perspective plan view of the disk device showing a state in which the disk is inserted and the support lever is swung in the embodiment of the present invention. FIG. FIG. 3 is a schematic perspective plan view of the disk device showing a state in which is completed.

  The slider 16 in the embodiment of the present invention has a shape on the upper surface (frame upper portion 3 c) and side surfaces of the frame 3. The slider 16 is formed with a connecting projection 16b for connecting to the support lever 14. On the other hand, the support lever 14 is formed with a long hole 14b into which the connecting projection 16b of the slider 16 is loosely fitted. That is, the connecting projection 16b of the slider 16 is loosely fitted into the elongated hole 14b of the support lever 14 to be in a connected state, and in conjunction with the swinging motion of the support lever 14 with the support lever rotating shaft 15 as a fulcrum. The slider 16 has a structure that slides slightly.

  The slider 16 is formed with a rack gear (hereinafter referred to as a third rack gear) 16c on the bottom side. This is formed to mesh with the gear mechanism 25 that rotates by the rotational driving force of the motor 21, and the third rack gear 16 c and the gear mechanism 25 are not meshed before the disk 2 is inserted. First, the outer peripheral edge of the disk 2 inserted from the insertion port 4 presses the third contact pin 14a and interlocks with the swinging motion of the support lever 14 swinging with the support lever rotating shaft 15 as a fulcrum. When the slider 16 slides slightly, the third rack gear 16c and the gear mechanism 25 are engaged with each other. If the third rack gear 16c and the gear mechanism 25 mesh with each other, the slider 16 slides to the front side of the disk device 1 by the rotational driving force of the motor 21.

  Further, on the front side of the side surface of the slider 16, a first cam portion 16d for forcibly swinging the swing member 18 having the roller 17 attached to the outer peripheral edge of the lower surface of the inserted disc 2 attached thereto. Is forming. This is because the projecting portion 18d formed at one end of the swinging member 18 abuts on the first cam portion 16d as the slider 16 slides, and along the first cam portion 16d. As the protrusion 18d moves, the swinging member 18 resists the biasing force of the coil spring 19 as the second biasing means with the swinging member rotating shafts 18a and 18a as fulcrums. 18b is provided so as to rise so as to close the insertion slot 4 and to swing the roller 17 so as to be lowered so as to be separated from the disk 2.

  A second cam portion 16e is formed on the front side of the slider 16 in the plane. This is provided to forcibly slide the first disk detection member 5, and the first disk detection member immediately before the operation of sliding the slider 16 toward the front side of the disk device 1 is completed. 5 is slightly slid and the first disk detection member 5 presses the first switch 9 disposed on the switch board 11 to stop the motor 21. When the disk 21 inserted through the insertion port 4 is transported, when the motor 21 is stopped by the above-described operation, the disk 2 reaches a predetermined position in the disk device 1 and the disk 2 is reproduced. Or, it indicates that recording is possible.

  The forcible sliding operation of the first disk detection member 5 reaches a predetermined position inside the disk device 1 together with a means for pressing the first switch 9 to stop the motor 21. It also serves as means for separating the first contact pin 5c and the second contact pin 6c from the outer peripheral edge of the disk 2. That is, since the first disk detection member 5 that slides slightly by the second cam portion 16e of the slider 16 is connected to the second disk detection member 6 via the pinion gear 7, the first disk detection member 5 The second disk detection member 6 also slides in accordance with the sliding operation of the disk detection member 5, and the first contact pin 5 c of the first disk detection member 5 and the second disk detection member 6. The second contact pin 6 c is separated from the outer peripheral edge of the disk 2.

  Further, in the elongated hole 14b of the support lever 14, the connecting projection 16b formed on the slider 16 is loosely connected to each other so as to be connected to each other. In addition to the slight sliding operation of the slider 16 described above, This is also related to the operation of separating the support lever 14 from the disk 2 conveyed to a predetermined position inside the disk device 1. That is, the connection protrusion 16b of the slider 16 that is engaged with the third rack gear 16c and the gear mechanism 25 and slides by the rotational driving force of the motor 21 moves along the long hole 14b of the support lever 14, and the connection protrusion When the end 16b presses the end of the long hole 14b, the support lever 14 swings about the support lever rotating shaft 15 as a fulcrum, and the third contact pin 14a formed on the support lever 14 serves as the disk device. 1 is separated from the outer peripheral edge of the disk 2 that has reached a predetermined position inside.

  By the way, the disk device 1 of this embodiment can be inserted into the large-diameter disk or the small-diameter disk from the insertion port 4, but the small-diameter disk is inserted before reaching a predetermined position inside the disk apparatus 1. It is forcibly ejected to the opening 4 side, and only the large-diameter disk can actually be reproduced or recorded (hereinafter, the large-diameter disk is denoted by reference numeral 2 and the small-diameter disk is denoted by reference numeral 2a). Next, disk discriminating means when each of the large-diameter disk 2 and the small-diameter disk 2a is inserted will be described.

  First, the case where the small-diameter disk 2a is inserted into the disk device 1 will be described with reference to FIGS. 19 to 21 and FIG. FIG. 19 is a schematic plan view showing a case where a small-diameter disk is inserted from the insertion slot, and FIG. 20 is a diagram showing a state where the small-diameter disk is further inserted into the disk apparatus from the state of FIG. 21 is a schematic plan view showing the case where the switch 1 is turned on. FIG. 21 shows the case where the small-diameter disk is conveyed into the disk device by the rotational force of the roller from the state shown in FIG. 20, and the first switch is turned off. FIG. 28 is a schematic plan view, and FIG. 28 is a flowchart showing an inserted disk discriminating operation and a small-diameter disk forcibly ejecting operation in the embodiment of the present invention.

The operation procedure when the small-diameter disk 2a is inserted into the disk device 1 is as follows.
(1) The user inserts the small-diameter disk 2a from the approximate center position of the insertion port 4 of the disk device 1 (S0002).
(2) The first contact pin 5c and the second contact pin 6c contact the outer peripheral edge of the small-diameter disk 2a.
(3) The first disk detection member 5 and the second contact pin 6c, which are integrally formed with the first contact pin 5c, are integrally formed by the pressing force of the user inserting the small diameter disk 2a. The second disc detection member 6 thus made slides in a direction away from each other against the urging force of the coil spring 8.
(4) When the first contact pin 5c and the second contact pin 6c are separated from each other up to substantially the same distance as the outer diameter of the small-diameter disk 2a, the first disk detection member 5 is 1 switch 9 is pressed, and the first switch 9 is switched from OFF to ON (S0003).
(5) When the first switch 9 is turned ON, the motor 21 is driven to rotate forward (S0004).
(6) The rotational driving force of the motor 21 is transmitted to the roller 17 via the pulley 22, the belt 23, the pulley gear 24, the gear mechanism 25, and the roller gear 20, and the small-diameter disk 2 a is rotated by the rotational force of the roller 17. It is conveyed to the inside of the disk device 1.
(7) The first disk detection member 5 that slides along the outer peripheral edge of the small-diameter disk 2 a slides in the direction in which the first disk detection member 6 is close to the second disk detection member 6 by the urging force of the coil spring 8. Then, the first disk detection member 5 leaves the first switch 9 without turning on the second switch 10 (S0005), and the first switch 9 is switched from ON to OFF (S0011).
(8) When the first switch 9 is switched from ON to OFF, the motor 21 is switched from forward rotation to reverse rotation (S0012), and the roller 17 inserts the small-diameter disk 2a into the disk device 1. It rotates in the direction of conveyance to the mouth 4 side.
(9) After the rotation direction of the motor 21 is switched and a predetermined time has elapsed (S0013), the motor 21 is stopped (S0014).

  From the state of FIG. 20, the motor 21 rotates to convey the small-diameter disk 2a to the inside of the disk device 1. When the state of FIG. 21 is reached, the rotation direction of the motor is switched, and the state of FIG. For this reason, the first switch 9 is pressed by the first disk detection member 5, but in this embodiment, after the state shown in FIG. 21 is reached, the rotation of the motor 21 is stopped after a predetermined time has elapsed. Is controlling.

  Next, the case where the large-diameter disk 2 is inserted into the disk device 1 will be described with reference to FIGS. FIG. 22 is a schematic plan view showing a case where a large-diameter disk is inserted from the insertion slot, and FIG. 23 is a diagram showing a state in which a large-diameter disk is further inserted into the disk apparatus from the state of FIG. FIG. 24 is a schematic plan view showing the case where the first switch is turned on. FIG. 24 shows that the large-diameter disk is conveyed into the disk device by the rotational force of the roller from the state shown in FIG. 23, and the second switch is turned on. 25 is a schematic plan view showing the case, FIG. 25 is a schematic plan view showing the case where the large-diameter disk is further conveyed into the disk device by the rotational force of the roller from the state of FIG. 24, and the second switch is turned OFF, FIG. FIG. 27 is a schematic plan view showing a case where the large-diameter disk is further conveyed into the disk device from the state of FIG. 25 by the rotational force of the roller, and the first switch is turned off, and FIG. FIG. 28 is a schematic plan view showing a case where the slider is slid from the state 6 and the first switch is turned on again. FIG. 28 shows an insertion disk discrimination operation and a small-diameter disk forced ejection operation in the embodiment of the present invention. It is a flowchart figure.

The operation procedure when the large-diameter disk 2 is inserted into the disk device 1 is as follows.
(1) The user inserts the large-diameter disk 2 from the approximate center position of the insertion port 4 of the disk device 1 (S0002).
(2) The first contact pin 5c and the second contact pin 6c contact the outer peripheral edge of the large-diameter disk 2.
(3) The first disk detection member 5 and the second contact pin 6c, which are integrally formed with the first contact pin 5c, are integrally formed by the pressing force of the user inserting the large-diameter disk 2. The formed second disk detection member 6 slides in a direction away from each other against the urging force of the coil spring 8.
(4) When the large-diameter disk 2 is further inserted into the disk device 1, the first disk detection member 5 presses the first switch 9, and the first switch 9 changes from OFF to ON. Switching (S0003).
(5) When the first switch 9 is turned ON, the motor 21 is driven to rotate forward (S0004).
(6) The rotational driving force of the motor 21 is transmitted to the roller 17 through the pulley 22, the belt 23, the pulley gear 24, the gear mechanism 25, and the roller gear 20, and the large-diameter disk 2 is rotated by the roller 17. To the inside of the disk device 1.
(7) When the first contact pin 5c and the second contact pin 6c are separated from each other up to approximately the same interval as the outer diameter of the large-diameter disk 2, the first disk detection member 5 is 2 switch 10 is pressed, and the second switch 10 is switched from OFF to ON (S0005).
(8) The first disk detection member 5 that slides along the outer peripheral edge of the large-diameter disk 2 is slid in the direction in which the first disk detection member 6 approaches the second disk detection member 6 by the biasing force of the coil spring 8. The first disk detection member 5 moves away from the second switch 10, and the second switch 10 is switched from ON to OFF (S0006).
(9) The first disk detection member 5 that slides along the outer peripheral edge of the large-diameter disk 2 slides in the direction in which the second disk detection member 6 is close to each other by the biasing force of the coil spring 8. The first disk detection member 5 moves away from the first switch 9, and the first switch 9 is switched from ON to OFF (S0007).
(10) When the slider 16 slides forward in the figure (S0008), the first disk detection member 5 is separated from the second disk detection member 6 against the urging force of the coil spring 8. The first disk detection member 5 presses the first switch 9 again, and the first switch 9 is switched from OFF to ON (S0009).
(11) When the first switch 9 is switched from OFF to ON, the motor 21 stops (S0010).

  That is, in the embodiment of the present invention, the first disk detection member 5 and the second disk detection member slide along the outer diameter of the large diameter disk 2 or the small diameter disk 2a inserted from the insertion port 4 of the disk device 1. 6, and the first switch 9 and the second switch 10 that are turned ON or OFF when the first disk detection member 5 slides are arranged on the sliding track of the first disk detection member 5. And detecting the switching of the first switch 9 and the second switch 10 to discriminate the disc inserted from the insertion slot 4, and the inserted disc is the small-diameter disc 2a. If so, the motor 21 is switched to reverse rotation before being conveyed to a predetermined position inside the disk device 1 so as to be forcibly discharged to the insertion port 4 side of the disk device 1. It is.

  As mentioned above, although one Example of this invention was explained in full detail, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention.

1 disk device 2 disk (large diameter disk)
2a Small-diameter disk 3 Frame 3a Frame side locking part 3c Upper part of frame 4 Insertion slot 5 First disk detection member 5a First rack gear 5b Missing tooth 5c First contact pin 6 Second disk detection member 6a Second Rack gear 6b Missing tooth 6c Second contact pin 7 Pinion gear 8 Coil spring (first biasing means)
DESCRIPTION OF SYMBOLS 9 1st switch 10 2nd switch 11 Switch board 14 Support lever 14a 3rd contact pin 14b Long hole 15 Support lever rotating shaft 16 Slider 16b Connection protrusion 16c 3rd rack gear 16d 1st cam part 16e 2nd Cam portion 17 roller 18 oscillating member 18a oscillating member rotating shaft 18b shielding portion 18c oscillating member engaging portion 18d projecting portion 19 coil spring (second urging means)
20 Roller gear 21 Motor 22 Pulley 23 Belt 24 Pulley gear 25 Gear mechanism

Claims (3)

  A frame, an insertion port formed in the frame for directly inserting and removing the disc, a first abutting pin that contacts the outer peripheral edge of the disc inserted from the insertion port, and moves along the outer peripheral edge of the disc; A second contact pin; a first disk detection member that forms a first rack gear with the first contact pin and is slidably attached to the frame; the second contact pin; A second disk detection member slidably attached to the frame, a pinion gear meshing with the first rack gear and the second rack gear, and the first disk detection member And a first urging means for urging the second disk detection member toward each other, and the first disk detection member or the second disk detection member sliding. A first switch and a second switch for switching between ON and OFF, and a motor for detecting the ON or OFF of the first switch and the second switch to perform forward drive, reverse drive, or stop And a roller that is rotated by the rotational driving force of the motor, wherein the first rack gear and the second rack gear each have a missing tooth, and the first switch is the first switch. The switch is provided at a position where the first disc detection member or the second disc detection member is switched on or off in accordance with the sliding of the first disc detection member or the second disc detection member before the switch 2 and the disc is inserted from the insertion port. When the first switch is switched from OFF to ON, the motor is driven forward so that the disk is removed by the roller. Then, when the second switch is switched from OFF to ON, the roller continues to convey the disc in a predetermined position in the disc device, or the second switch is turned on. When the switch 2 is not turned ON and the first switch is switched from ON to OFF, the motor is driven in reverse to forcibly eject the disk to the insertion slot side of the disk device by the roller. A disc device comprising disc discriminating means.   The first switch and the second switch are arranged side by side so as to be switched ON or OFF by either the sliding first disk detecting member or the second disk detecting member. A disk device comprising the disk discrimination means according to claim 1. A slider that is slidably attached to the frame and that slides in a direction perpendicular to the sliding direction of the first disk detection member or the second disk detection member is provided, 3. The motor is stopped when the first switch is switched from OFF to ON via the first disk detection member or the second disk detection member. A disk device comprising the disk discrimination means according to any one of the above.

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