JP3168146U - Disk device with clamper - Google Patents

Abstract

Provided is a disk device having a clamper that can be thinned while maintaining a space for transporting a disk by holding a clamper in an upper position so as to be substantially parallel to the upper part of a frame with a simple structure. To do. A clamper composed of at least a clamper body 12a and a plate member 12c is attached to a clamper mounting portion 13a of a support member 13 swingably attached to a frame. Protrusions 13d and 13d that contact the lower surface of the plate member 12c when the clamper moves away from the turntable are formed on the clamper mounting portion 13a. When the clamper is in the upper position, a part of the clamper body 12a The clamper is held substantially parallel to the upper portion of the frame with the convex portions 13d and 13d as fulcrums. [Selection] Figure 14

Description

  The present invention relates to a disk device including a clamper that rotatably holds a disk, which is a disk-shaped storage medium called a CD, DVD, Blu-ray disk or the like, together with a turntable.

  The disk device is a general term for all devices equipped with a function of 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), and CD RECORDER and DVD RECORDER that have both playback and recording functions 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 and a disk device is provided with an insertion port, a roller is provided on the inner surface side of the insertion port, and the disk inserted from the insertion port is conveyed by the rotational driving force of the roller. There are means.

  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 An optical pickup unit capable of writing and recording information to the traverse unit, and a traverse unit provided as a main component, and a clamper for clamping a disc together with the turntable at a position opposite to the turntable, Generally, there is a means for rotating the disk while holding it between a table and the clamper, and for reproducing information recorded on the disk or recording information on the disk by the optical pickup unit.

  By the way, until the disk reaches a predetermined position in the disk device, the turntable and the clamper need to be separated from each other and a transport track of the transported disk needs to be secured. In particular, in the case of a disc apparatus having a conveying means that allows a disc to be directly inserted from the insertion slot, the clamper needs to be retracted so that the clamper does not come into contact with the disc during conveyance.

  In Patent Document 1, a magnet with a bottom surface magnetized is fitted into a clamper, and the clamper is loosely fitted into an opening of a support member made of a steel plate so that the magnetized bottom surface portion is attached to a support member. The contents held by the support member in the state of being sucked and lifted are described.

  In Patent Document 2, a spring member is attached to the tip of a support member that moves the clamper to an upper position and a lower position. When the clamper is at the upper position, the spring member causes the clamper to be placed on the upper surface of the disk device. The content that is parallel to the content is described.

JP 2005-18951 A WO 2008/059820

  According to the structure of Patent Document 1, it is possible to hold the clamper in the upper position in a state where the disk is not sandwiched by using a support member made of a magnet and a steel plate magnetized on one side. Since a special magnet is used, it is difficult to reduce the cost of the disk device. In addition, a space for retracting the clamper at the upper position is required by the magnetic force, and there is a concern that the disk device may be enlarged in the height direction.

  Further, according to the structure of Patent Document 2, an additional spring member is required to make the clamper parallel to the upper surface of the disk device at the upper position.

  The present invention has been made in view of the above-described points, and an object of the present invention is to retract a clamper to a position where a disk transport path can be secured with a minimum number of parts, and An object of the present invention is to provide a disk device having a clamper that can be made thin.

  A disk device having a clamper according to claim 1 includes a frame, a frame upper portion that partially covers the upper surface of the frame, and a support member having a clamper mounting portion that is swingably attached to the frame. A clamper rotatably attached to the clamper mounting portion, and a turntable provided at a position facing the clamper, and the disc can be rotated by the clamper and the turntable in the frame. A clamp device, wherein the clamper includes a clamper body having a portion for clamping the disk together with the turntable on a lower side of the clamper mounting portion, and the clamper body on the upper side of the clamper mounting portion. And a plate member that prevents it from coming off the mounting portion. Further, the clamper is spaced apart from the turn table facing the lower surface of the upper part of the frame and close to the turn table facing the lower surface of the upper part of the frame, and an upper position where the disk can be transported. The plate member can be moved by a swinging operation of the support member between the turntable and a lower position where the disk is rotatably held, and the clamper mounting portion is separated from the turntable when the plate member is moved away from the turntable. A convex portion that contacts the lower surface of the frame is formed, and when the clamper moves to an upper position, a part of the clamper body and the lower surface of the upper portion of the frame abut, and the contact portion of the plate member and the convex portion is a fulcrum. The clamper is substantially parallel to the upper part of the frame.

  According to the configuration of the first aspect, the structure for holding the clamper so as to be substantially parallel to the upper part of the frame at the upper position can be dealt with by changing the shape of the existing part by forming a convex portion as a fulcrum at the clamper mounting portion. Thus, it is possible to secure a disk transport track without adding additional components. In addition, by making the clamper approximately parallel to the upper part of the frame, the disk transport track space required in the frame can be minimized, and the height of the disk unit can be reduced, making it possible to reduce the thickness. It becomes.

  A disc device comprising the clamper according to claim 2 is the disc device comprising the clamper according to claim 1, wherein a circular hole is formed in the upper part of the frame, and the clamper moves to an upper position. The plate member is inserted into the circular hole.

  According to the configuration of the second aspect, since a part of the clamper can be inserted into the circular hole formed in the upper part of the frame when the clamper moves to the upper position, it is possible to provide a thinner disk device. It becomes possible.

  A disc device provided with the clamper according to claim 3 is the disc device provided with the clamper according to claim 1 or 2, wherein the support member is placed at a lower position by the biasing means. The slider is slidably attached to the frame, and a cam portion in which a high position and a low position are connected by an inclined portion is provided on the slider, and the cam is provided on the support member. Forming a contact portion that contacts the portion, while forming a disc insertion port in the frame, provided with a roller that contacts the outer peripheral edge of the disc from the recording surface side of the disc inserted from the insertion port, The roller can be moved up and down in conjunction with the sliding motion of the slider, and when the disc is not inserted into the disc device, the contact portion is positioned at a high position of the cam portion. The slider is slid so as to forcibly swing the support member so that the clamper is in the upper position against the biasing means, and the roller is an outer peripheral edge of the disk inserted from the insertion port. When the disc is inserted into the disc device and the disc is conveyed to a rotatable position by the turntable, the abutting portion is positioned at a low position of the cam portion. The slider is slid and the biasing means moves the clamper to a lower position to push the disk down to the turntable side, and the roller is lowered to a position separated from the outer periphery of the disk. And

  According to the third aspect of the present invention, the swinging operation of the support member to which the clamper is attached and the ascending / descending operation of the roller for conveying the disk are performed in conjunction with each other by the sliding operation of the slider. That is, until the disk is conveyed to a rotatable position by the turntable, the clamper is in the upper position, and the roller is raised from the insertion port to a position where it abuts on the outer peripheral edge of the inserted disk. If the disk reaches a position where it can be rotated by the turntable, the clamper moves to the lower position by the sliding movement of the slider and pushes the disk to the turntable side, and the roller moves the disk in accordance with the movement of the clamper. It descends to a position away from the outer peripheral edge. As a result, since the turntable facing the clamper can be fixed inside the disk device, the disk device can be simply configured, and an inexpensive disk device can be provided.

  According to the configuration of the present invention as described above, the clamper attached to the support member in the vicinity of the lower surface of the upper portion of the frame is held so as to be substantially parallel to the upper portion of the frame. The apparatus can be thinned. In addition, since a convex portion is formed on the clamper mounting portion of the support member and a part of the clamper is brought into contact with the lower surface of the upper part of the frame, an inexpensive disk device is provided without adding additional parts. can do.

The perspective view of the disc apparatus in the Example of this invention. The top view of the disc apparatus in the Example of this 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 a 1st contact part from the insertion port 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 opening 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 disassembled perspective view which shows the structure of the clamper in the Example of this invention. The front side perspective view of the flame | frame single_piece | unit in the Example of this invention. FIG. 3 is a schematic partially enlarged side view of the vicinity of the clamper showing a state where the clamper is in an upper position in the embodiment of the present invention. FIG. 17 is a perspective view illustrating the relationship among the clamper, the support member, and the slider in the state of FIG. 16. FIG. 3 is a partially enlarged schematic side view of the vicinity of the clamper showing a state in which the clamper is in a lower position in an embodiment of the present invention. FIG. 19 is a perspective view illustrating the relationship among the clamper, the support member, and the slider in the state of FIG. 18. 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. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 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. The disassembled perspective view of the disc apparatus in the Example of this invention. The perspective view which shows the traverse unit in the Example of this invention.

  Hereinafter, an embodiment as the best mode for carrying out the present invention will be described 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 in an embodiment of the present invention. In the figure, reference numeral 1 denotes a disk device, 2 denotes a disk, 3 denotes a frame constituting the external appearance of the disk device 1, and 4 denotes an insertion port formed in the frame 3 that allows the disk 2 to be directly inserted and removed. As shown in the figure, when the disk 2 is inserted by the user through the insertion port 4 formed in the frame 3 of the disk device 1, the disk 2 is moved to a predetermined position inside the disk device 1 by the rotational force of a roller described later. It is conveyed to. 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. As shown in the figure, the upper part of the frame 3 in the vicinity of the insertion opening 4 is provided with 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. Yes. 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 by the user through 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.

  Incidentally, 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 has a missing tooth. 6b is 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 disk 2 inserted by the user. In this case, the inserted disk 2 is used as a means for inserting from the substantially central 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 disc is inserted so that the outer peripheral edge of the disc comes into contact with only the first contact portion from 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 by the user from the insertion port 4 so as to deviate from the left side of the insertion port 4, the outer peripheral edge of the disc 2 is formed on the first disc detection member 5. The first disk detection member 5 is in contact with the first contact pin 5 c and 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 meshing with the first rack gear 5a rotates in the direction of arrow B, and the pinion gear 7 is the same as the first rack gear 5a. The second disk detection member 6 on which the second rack gear 6a meshing with the 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 reach the missing tooth 5b formed on the first rack gear 5a, the other tooth tip of the pinion gear 7 hits the tooth tip of the second rack gear 6a, and the rotation of the pinion gear 7 Is forcibly stopped. 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 disk 2 inserted by the user comes into contact with the first disk detection member 5 that slides by the pressing force of the disk 2 and the second disk that slides through the pinion gear 7. The detection member 6 cannot slide from the state shown in FIG.

  FIG. 6 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 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, when the disc 2 is inserted from the insertion port 4 by the user so as to be offset from the right side of the insertion port 4, the outer peripheral edge of the disc 2 is formed on the second disc detection member 6. The second disk detection member 6 is brought into contact with the second contact pin 6 c and 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 meshing with the second rack gear 6a rotates in the direction of arrow B, and the pinion gear 7 is the same as the second rack gear 6a. The first disk detection member 5 formed with the first rack gear 5b that meshes with the first slide 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 disc 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 formed on the second rack gear 6a, the teeth of the first rack gear 5a. The other tip of the pinion gear 7 hits first, 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 disk 2 inserted by the user comes into contact, the second disk detection member 6 that slides by the pressing force of the disk 2, and the first disk that slides through the pinion gear 7. The detection member 5 cannot slide from the state shown in FIG.

  FIG. 8 is a partial schematic perspective view showing a case where the outer peripheral edge of the disc is inserted into contact with the first contact portion and the second contact portion from the insertion opening of the disk device in the embodiment of the present invention. As shown in the figure, when the disc 2 is inserted from the insertion port 4 by the user from the approximate center of the insertion port 4, the outer peripheral edge of the disc 2 is formed in the first disc detection member 5. The abutting pin 5c and the second abutting pin 6c formed on the second disc detecting member 6 are in abutment with each other, and the first disc detecting member 5 is moved in the direction of arrow A by the pressing force of the disc 2. The second 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 approach the missing teeth 5c formed on the first rack gear 5a and the missing teeth 6c formed on the second rack gear 6a, the pinion gear 7 is connected to the first rack gear 5a and the first rack gear 5a. The rotation is temporarily stopped because it does not mesh with the second rack gear 6a, but the first disk detection member 5 and the second disk detection member 6 are moved to a position past the missing tooth 5c and the missing tooth 6c. By sliding in a direction away from each other, 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 in which the first rack gear 5a is formed and the second disk detection member in which the second rack gear 6a is formed by the pressing force generated when the disk 2 is inserted. 6 slides in directions away from each other.

  In other words, the restriction of sliding of the first disk detection member 5 or the second disk detection member 6 by the missing teeth 5c or the missing teeth 6c is a restriction on 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 as in this embodiment are roughly classified into a large-diameter disk having a diameter of 120 mm and a small-diameter disk having a diameter of 80 mm. The insertion port 4 is generally large enough to insert a large-diameter disc. In this embodiment, even when either a large-diameter disk or a small-diameter disk is inserted, the insertion is possible from the approximate center of the insertion port 4. It should be noted that the disk 2 shown in FIGS. 4 to 9 is a large-diameter disk, and even if a small-diameter disk is inserted, the same effect is obtained, and details are omitted.

  Next, a means for transporting 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 turned on and off by sliding the first disk detection member 5 are provided on the upper portion of the frame 3. A switch board 11 is attached. The first switch 9 and the second switch 10 are for controlling driving or stopping of a motor that rotates a roller, which will be described later.

  Specifically, the first disk detection member 5 that slides when the disk 2 is inserted from the insertion port 4 of the disk device 1 presses the first switch 9 to drive the motor, and the roller Is rotated by the power of the motor to convey the disk 2 to a predetermined position inside the disk device 1. When the disk 2 reaches a predetermined position inside the disk device 1, the first switch 9 is pressed again, the motor stops, and the disk 2 is transported to a predetermined position inside the disk device 1. The roller that was rotating in order to stop is also stopped.

  On the other hand, the second switch 10 is provided to stop a motor that is a power source of a roller that rotates to convey the disk 2 from a predetermined position inside the disk device 1 to the insertion port 4. That is, when the first disk detection member 5 slides from a state where the second switch 10 is pressed to a position where the pressed state can be released, the motor is stopped and the disk 2 is inserted into the insertion slot. The roller that was rotating to convey to 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 24 is driven by the power of the motor 21. The structure is rotated.

  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 disc 2 is provided. Is 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 the direction in which the roller 17 comes into contact with the disk 2 inserted from the insertion port 4, and will be described in detail 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 contact the vicinity of the outer peripheral edge of the disk 2 inserted from the insertion port 4 and prevent damage and dirt from being attached due to the roller 17 contacting the surface of the disk.

  Meanwhile, 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 power of the motor 21 to the roller 17, and the rotation speed of the motor 21 is suitable for conveying the disk 2 between the pulley gear 24 and the roller gear 20. A gear mechanism 25 composed of a plurality of gears is provided for converting to speed and for transmitting power for sliding a slider described later.

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 rotated by the power 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 periphery of the disk 2, and the first disk detection member 5 and the second disk detection member 6 slide in a direction away from each other. To do.
(3) The first disk detecting 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 on from OFF. become.
(4) When the first switch 9 is turned from OFF to ON, the motor 21 is driven to rotate.
(5) The rotational power 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 conveys the disk 2 into the disk device 1. Rotate for.

  Next, the swing member to which the roller 17 is attached will be described in detail. FIG. 11 is a top perspective view showing the swing member in the embodiment of the present invention, FIG. 12 is a bottom perspective view of the same, and FIG. 13 is a bottom perspective view of the disk device in the embodiment of the present invention. As shown in the figure, a roller 17 is rotatably attached to the swinging 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 urging 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 in 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 urging 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 another disk from being inserted after the disk 2 is inserted into a predetermined position inside the disk device 1. More specifically, a protrusion 18d is formed at one end of the swing member 18 separately from the swing member rotating shaft 18a, and the protrusion 18d is pressed by a slider, which will be described later. The swing member 18 swings so that the shielding portion 18b rises against the biasing force of the coil spring 19 with the swing member rotating shafts 18a and 18a as fulcrums. And it becomes possible to prevent the insertion of another disk 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 about the swinging member rotating shafts 18a and 18a by pressing the protruding portion 18d by a slider, which will be described later, is constantly urged by the coil spring 19; If the coil spring 19 is provided on the other end side of the swing member 18 where the projecting portion 18d is not formed, the swing member 18 may be twisted to cause a problem in the swing operation, or It can be considered that the transfer of the disk 2 by the roller 17 attached to the swing member 18 is also affected.

  By the way, the disk device 1 of the present 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 compulsory before reaching a predetermined position inside the disk device 1. Therefore, only the large-diameter disk can be reproduced or recorded. That is, in the embodiment of the present invention, the first disk detection member 5 and the second disk detection which 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 are used. A member 6 is provided, and a first switch 9 and a second switch 10 that are turned ON or OFF by sliding the first disk detection member 5 are placed on the sliding track of the first disk detection member 5. In parallel, the first switch 9 and the second switch 10 are turned on or off to detect the disc inserted from the insertion slot 4, and the inserted disc is a small-diameter disc. If so, the roller 17 is reversely rotated before being conveyed to a predetermined position inside the disk device 1 so as to be forcibly conveyed to the insertion port 4 side.

  Next, the structure and operation of the clamper that presses the disk 2 that has reached a predetermined position inside the disk device 1 from above will be described with reference to FIGS. 14 is an exploded perspective view showing the structure of the clamper in the embodiment of the present invention, FIG. 15 is a front perspective view of a single frame in the embodiment of the present invention, and FIG. 16 is the clamper in the upper position in the embodiment of the present invention. FIG. 17 is a perspective view showing the relationship between the clamper, the support member, and the slider, and FIG. 18 is a lower view of the clamper in the embodiment of the present invention. FIG. 19 is a perspective view showing the relationship between the clamper, the support member, and the slider in the state shown in FIG. 18.

  The clamper 12 is attached to a support member 13 that can swing on the rear side of the disk device 1. More specifically, the clamper 12 includes a clamper main body 12a that directly contacts the inserted disc, a magnet 12b stored in a storage portion of the clamper main body 12a, and the magnet 12b stored in the clamper main body 12a. It is comprised by the plate member 12c attached from the upper part of the said clamper main body 12a. The support member 13 is formed with a clamper attachment portion 13a for rotatably supporting the clamper, and the plate member 12c is attached to the clamper main body 12a via the clamper attachment portion 13a.

  Further, the support member 13 is formed with pivot holes 13c, 13c that can swing with respect to the frame 3, and behind the frame 3, the pivot holes 13c, 13c of the support member 13 are formed. Pivot protrusions 3b and 3b are formed in which 13c is loosely fitted. That is, the support member 13 having the clamper 12 rotatably attached to the clamper mounting portion 13a of the support member 13 has pivot support holes 13c and 13c that are loosely fitted to the pivot projections 3b and 3b formed on the frame 3. As shown in FIG.

  The frame 3 is formed with a frame upper portion 3c at a position higher than the position where the pivot protrusions 3b, 3b are formed. On the frame upper part 3c, a switch board on which the first disk detection member 5, the second disk detection member 6, the pinion gear 7, the first switch 9, and the second switch 10 are disposed. 11 is attached.

  The frame upper portion 3c is formed with a circular hole 3d through which a part of the clamper 12 is exposed, and an opening 3e through which a part of the support member 13 can be inserted behind the frame 3. Is formed. That is, the support member 13 that can swing about the pivotal support holes 13c and 13c that are loosely fitted to the pivotal protrusions 3b and 3b of the frame 3 has the clamper mounting portion 13a to which the clamper 12 is mounted from the opening 3e. 3, and the clamper 12 can swing inside the frame 3.

  If the clamper 12 is swung to an upper position on the frame upper part 3c side, the plate member 12c of the clamper 12 is inserted into the circular hole 3d of the frame 3, and a part of the clamper body 12a is inserted. Is in contact with the frame upper part 3c, and the clamper 12 is substantially parallel to the frame upper part 3c. More specifically, the clamper mounting portion 13a of the support member 13 has projections 13d and 13d formed by drawing, and by swinging the support member 13 in the direction in which the clamper 12 moves upward, The front side of the clamper main body 12a constituting the clamper 12 abuts on the frame upper portion 3c, and the clamper 12 rotates on the clamper mounting portion 13a with the projections 13d and 13d as fulcrums, and moves to the frame upper portion 3c. It is almost parallel to it.

  This is to prevent the disc 2 inserted from the insertion port 4 from coming into contact with the clamper 12 during the conveyance. For example, if the protrusions 13d and 13d are not formed on the clamper mounting portion 13a, the clamper 12 is inclined with respect to the frame upper portion 3c even if the support member 13 is swung in the direction in which the clamper 12 is raised. As a result, there is a risk that the disk 2 inserted from the insertion port 4 and the clamper 12 come into contact with each other. Further, if the structure is changed so as to further raise the clamper 12 in order to prevent contact between the disk 2 and the clamper 12, the frame upper part 3c of the frame 3 needs to be changed to a higher position. There is a risk that According to the embodiment of the present invention, the clamper 12 in the upper position is made substantially parallel to the frame upper part 3c, and the height of the disk device 1 is kept to the minimum and the contact with the disk 2 inserted from the insertion port 4 is ensured. Can be prevented.

  The support member 13 has a coil spring 26 (see FIG. 10) serving as a third urging means in a direction in which the clamper 12 swings to a lower position, that is, the upper surface side of the inserted disk 2 in the disk device 1. A biasing force is always applied in a direction of being pressed by the clamper 12 at a predetermined internal position. Then, when the disk 2 is not inserted into the disk device 1 by a slider described later, the support member 13 is forcibly shaken so that the clamper 12 is in the upper position against the urging force of the coil spring 26. The structure is moved.

  The support member 13 is formed with an arc-shaped long hole 13b. And the support lever 14 in which the 3rd contact pin 14a penetrated to the said arc-shaped long hole 13b was formed is attached to the flame | frame upper part 3c so that rocking | fluctuation is possible. More specifically, a support lever rotating shaft 15 for mounting the support lever 14 is integrally formed on the frame upper portion 3c, and the support lever 14 can swing around the support lever rotating shaft 15 as a fulcrum. It is said. The disk 2 inserted from the insertion port 4 is conveyed to a predetermined position inside the disk device 1 by a roller 17 that is rotated by the driving force of the motor 21, but the outer peripheral edge of the disk 2 is behind the disk device 1. 3, the third contact pin 14 a is pressed by the disk 2 being conveyed, and the support lever 14 swings around the support lever rotating shaft 15.

  Further, a slider 16 that can slide in the front-rear direction of the disk device 1 is attached to the frame upper portion 3c. The support lever 14 and the slider 16 are connected to each other, and the slider 16 slides in conjunction with the swinging motion of the support lever 14 that swings as the disk 2 is conveyed. The slider 16 forms a first cam portion 16a in which a high position and a low position are connected to each other on the rear side by an inclined portion, and the support member 13 is in contact with the first cam portion 16a. A contact portion 13e is formed. That is, when the disk 2 is not inserted into the disk device 1, the contact portion 13 e of the support member 13 is in contact with the high position of the first cam portion 16 a formed on the slider 16. The support member 13 is in a state where the clamper 12 is in the upper position against the urging force (see FIG. 17), but when the disk 2 reaches a predetermined position inside the disk device 1, the slider 16 And the contact portion 13e moves from the high position to the low position along the first cam portion, so that the support member 13 is formed on the frame 3 by the biasing force of the coil spring 26. The pivoting holes 13c and 13c that are loosely fitted into the pivoting protrusions 3b and 3b are swung around the pivotal supporting points 13b and 3b, and the clamper 12 is in a lower position (see FIG. 19).

  Next, a specific shape and function of the slider will be described with reference to FIGS. FIG. 20 is a top perspective view of the slider alone in the embodiment of the present invention, FIG. 21 is a bottom perspective view of the slider alone in the embodiment of the present invention, and FIG. 22 shows a state before the disk insertion in the embodiment of the present invention. FIG. 23 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. 24 is a slider in the embodiment of the present invention. FIG. 3 is a schematic perspective plan view of a disk device showing a state where the disk has been slid and insertion of the disk is completed.

  The slider 16 in the embodiment of the present invention has a shape on the upper surface 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. In other words, the connecting projection 16b of the slider 16 is connected by loosely fitting into the elongated hole 14b of the support lever 14, and interlocked with the swinging motion of the support lever 14 with the support lever rotating shaft 15 as a fulcrum. The slider 16 is structured to slide 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 power of the motor 21, and in the state before the disk 2 is inserted, the third rack gear 16c and the gear mechanism 25 are not meshed, The outer periphery of the disk 2 inserted from the insertion port 4 presses the third contact pin 14a, and the slider 16 slightly moves in conjunction with the movement of the support lever 14 with the support lever rotating shaft 15 as a fulcrum. The third rack gear 16c and the gear mechanism 25 are meshed 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 driving force of the motor 21.

  Further, on the front side of the side surface of the slider 16, a swinging member 18 for bringing the roller 17 into contact with the outer peripheral edge of the lower surface of the inserted disk 2 is forcibly moved away from the disk 2. A second cam portion 16d for swinging is formed. This is because the protruding portion 18d formed at one end of the swing member 18 abuts on the second cam portion 16d as the slider 16 slides, and the second cam portion 16d As the projecting portion 18d moves along, 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, 18a as fulcrums. The part 18b is lifted so as to close the insertion port 4, and the roller 17 is swinging in a downward direction so as to be separated from the disk 2.

  That is, when the disk 2 is in a state where reproduction or recording is possible at a predetermined position inside the disk device 1, the rocking motion is performed by the slider 16 in order to prevent another disk from being inserted from the insertion slot 4. The moving member 18 is forcibly swung, the insertion portion 4 is closed from the inner surface side using the shielding portion 18b, and the roller 17 is separated from the disk 2 to be reproduced or recorded.

  A third cam portion 16e is formed on the front side of the slider 16 in the plane. This is provided for forcibly sliding the first disk detection member 5, and the first disk detection is performed immediately before the operation of sliding the slider 16 toward the front side of the disk device 1 is completed. The drive of the motor 21 is stopped by sliding the member 5 slightly and pressing the first switch 9 disposed on the switch board 11 by the first disk detection member 5. When the disk 2 inserted from the insertion port 4 is transported, when the motor 21 is stopped by the above-described operation, the disk 2 reaches a predetermined position inside the disk device 1 and the disk 2 This indicates that playback or recording is possible.

  The forced sliding operation of the first disk detection member 5 has reached a predetermined position inside the disk device 1 together with the function of pressing the first switch 9 to stop the motor 21. The first contact pin 5c and the second contact pin 6c are separated from the outer peripheral edge of the disk 2. That is, since the first disk detection member 5 that slides slightly by the third cam portion e formed on the slider 16 is connected to the second disk detection member 6 via the pinion gear 7, The second disk detection member 6 slides in accordance with the sliding operation of the first disk detection member 5, and the first contact pin 5 c formed integrally with the first disk detection member 5 and the The second contact pin 6 c formed integrally with the second disk detection member 6 is separated from the outer peripheral edge of the disk 2.

  Further, a connecting projection 16b formed on the slider 16 is loosely fitted in the elongated hole 14b of the support lever 14 and connected to each other. In addition to the slight sliding operation of the slider 16, the disc 16 This is also related to the operation of separating the support lever 14 from the disk 2 conveyed to a predetermined position inside the apparatus 1. That is, the connecting protrusion 16b of the slider 16 that is slid by the driving force of the motor 21 by meshing with the third rack gear 16c and the gear mechanism 25 moves along the long hole 14b of the support lever 14, and the connecting protrusion 16b. When the end of the long hole 14b is pressed, 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. It is separated from the outer peripheral edge of the disk 2 that has reached a predetermined position inside.

  A projecting piece 16f is formed on the front side of the third cam portion 16e. A protrusion 5d is formed at the end of the first disk detection member 5 on the slider 16 side. The protrusions 16f and the protrusions 5d are provided to prevent the gear mechanism 25 from meshing with the third rack gear 16c formed on the slider 16 before the disk 2 is inserted into the disk device 1. A protrusion 16 f formed on the slider 16 is brought into contact with a protrusion 5 d formed on one disk detection member 5, thereby preventing inadvertent sliding of the slider 16. Note that the “inadvertent sliding” described above indicates, for example, a case where an excessive impact is applied from the outside of the electronic device incorporating the disk device 1.

  Next, a traverse unit for reproducing or recording the disc 2 at a predetermined position in the disc apparatus 1 will be described with reference to FIGS. 25 and 26. FIG. FIG. 25 is an exploded perspective view of the disk device in the embodiment of the present invention, and FIG. 26 is a perspective view showing the traverse unit in the embodiment of the present invention.

  The traverse unit 27 shown in the present embodiment irradiates the disk 2 with laser light on the turntable 29 that can rotate the disk 2 and the disk 2 that is rotated by the turntable 29 at a predetermined position inside the disk device 1. A pickup unit 30 capable of reading and reproducing information recorded in advance on the disk 2 and / or writing and recording information on the disk 2 is attached to the base member 28 as a main component. The traverse unit 27 is fastened to the frame 3 of the disk device 1 using screws, and the disk 2 inserted into a predetermined position inside the disk device 1 is attached to a swinging support member 13. The disc 2 is held between the clamper 12 and the turntable 29 by being pushed down by the clamper 12. When the disc 2 is transported from the predetermined position inside the disc device 1 to the insertion port 4 side, the slider 16 slides to release the forcible swinging state of the swinging member 18, and the swinging member is released. 18 is oscillated around the oscillating member rotating shafts 18a and 18a so that the roller 17 is brought into contact with the outer peripheral edge of the lower surface of the disk 2 by the urging force of the coil spring 19, and the disk 2 is separated from the turntable 29. A lifting force is generated. Further, the clamper 12 that has pressed the disk 2 from the upper side by the sliding operation of the slider 16 is free to play on the pivotal protrusions 3 b and 3 b formed on the frame 3 against the urging force of the coil spring 26. It moves to an upper position with the swinging motion of the support member 13 that swings around the pivotal support holes 13c, 13c to be fitted.

  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)
3 Frame 3a Frame side locking portion 3b Pivoting projection 3c Upper part of frame 3d Circular hole 3e Opening portion 4 Insertion port 5 First disk detection member 5a First rack gear 5b No-tooth 5c First contact pin 5d Projection 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 12 Clamper 12a Clamper main body 12b Magnet 12c Plate member 13 Support member 13a Clamper attachment part 13b Arc-shaped long hole 13c Pivot hole 13d Convex part 13e Contact part 14 Support lever 14a Third contact pin 14b Long hole 15 Support lever rotating shaft 16 Slider 16a First cam portion 16b Connection protrusion 16c Third rack gear 16d Second cam portion 16e Third cam portion 16f Projection piece 16g Locking portion 17 Roller 18 Oscillating member 18a Oscillating member rotating shaft 18b Shielding portion 18c Oscillating member locking portion 18d Protruding portion 19 Coil spring (second urging means)
20 Roller gear 21 Motor 22 Pulley 23 Belt 24 Pulley gear 25 Gear mechanism 26 Coil spring (third biasing means)
27 Traverse unit 28 Base member 29 Turntable 30 Pickup unit

Claims (3)

  A frame, a frame upper portion partially covering the upper surface of the frame, a support member having a clamper mounting portion that is swingably attached to the frame, and a rotatably attached to the clamper mounting portion A clamp device, and a turntable provided at a position facing the clamper, and a disc device that rotatably holds a disc by the clamper and the turntable in the frame, wherein the clamper A clamper body having a portion for sandwiching the disk together with the turntable on the lower side of the clamper mounting part, and a plate member for preventing the clamper body from coming off from the clamper mounting part on the upper side of the clamper mounting part. The clamper has a lower surface at the top of the frame. The upper position where the disk can be transported while being separated from the facing turntable in FIG. 5 and the turntable can be rotated together with the turntable close to the facing turntable on the lower surface side of the upper part of the frame. The support member can be moved by a swinging motion of the support member between the lower position to be sandwiched, and the clamper mounting portion is formed with a convex portion that contacts the lower surface of the plate member when being separated from the turntable, When the clamper moves to the upper position, a part of the clamper body and the lower surface of the upper part of the frame come into contact with each other, and the clamper becomes substantially parallel to the upper part of the frame with the contact part of the plate member and the convex part as a fulcrum. A disk device comprising a clamper characterized by the above.   The disk with a clamper according to claim 1, wherein a circular hole is formed in the upper part of the frame, and the plate member is inserted into the circular hole when the clamper moves to an upper position. apparatus. The support member is constantly urged by the urging means in a direction in which the clamper is in the lower position, and a slider is slidably attached to the frame, and the slider is provided with a high position and a low position by an inclined portion. Provided is a cam portion that is connected, and the support member is formed with a contact portion that contacts the cam portion, while the frame is provided with a disc insertion port, and the recording surface of the disc inserted through the insertion port A roller that contacts the outer peripheral edge of the disk from the side, the roller can be moved up and down in conjunction with the sliding movement of the slider, and when the disk is not inserted in the disk device, the contact portion is The slider is slid so as to be in a high position of the cam portion, and the support member is forcibly swung so that the clamper is in an upper position against the biasing means. The roller ascends to a position where it can come into contact with the outer peripheral edge of the disc inserted from the insertion port, and when the disc is inserted into the disc device and the disc is conveyed to a rotatable position by a turntable, The slider is slid so that the abutting portion is at the lower position of the cam portion, and the clamper moves to a lower position by the biasing means to push the disk to the turntable side, and the roller 3. A disk device comprising a clamper according to claim 1, wherein the disk apparatus is lowered to a position separated from the outer peripheral edge of the disk.

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