JP2011086329A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk device for feeding a disk at a speed higher than a peripheral speed of a conveying roller when the disk held between the conveying roller and a holding member is conveyed. <P>SOLUTION: A roller shaft 11 supporting the conveying roller 12 is pushed to the holding member 13 by pressing force of a right side spring member 17a on X1 side. On X2 side, a left side spring member 17b pressing the roller shaft 11 toward the holding member 13 is provided, and a holding force setting mechanism 30 is also provided. Holding force between the conveying roller 12 and the holding member 13 is weakened by the holding force setting mechanism 30 when the disk is loaded. The disk D is pushed inside of a casing at a high speed by separation force of pushing force of pressurization sensing pins 43a and 43b. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a disk device in which a disk is sandwiched between a transport roller and a sandwiching member, and the disk is transported toward a rotation drive unit in the device by the rotational force of the transport roller.

  A so-called slot-in type disk device used for in-vehicle use is described in Patent Document 1 below.

  This type of disk device is provided with a transport roller and a motor for driving the transport roller. The transport roller faces the sandwiching member made of synthetic resin, and is biased by the spring member so that the transport roller and the sandwiching member can sandwich the disk. When the disc inserted from the insertion opening opened in the housing is sandwiched between the rotating transport roller and the clamping member, the rotational force of the transport roller is converted into the transport force of the disc by the frictional force between the transport roller and the disc. Then, the disk is fed into the housing and clamped on the turntable of the rotation drive unit.

Japanese Patent Application No. 11-288766

  Since the disk device needs to reliably carry the disk to a predetermined position inside the casing by the rotational force of the transport roller, the rotational torque of the transport roller must be increased to some extent. However, it is difficult to equip a disk device with a large motor with high output torque in order to reduce the size and cost of the entire device. Therefore, it is common to increase the reduction ratio of the gear train provided in the power transmission unit from the motor to the conveyance roller, and drive the conveyance roller with a relatively high torque with the reduced power. Further, by reducing the radius of the transport roller, not only the apparatus can be downsized but also the driving force in the transport direction applied from the transport roller to the disk can be increased.

  However, when the reduction ratio of the power transmission unit is increased, the rotation speed of the conveyance roller is decreased, and when the radius of the conveyance roller is small, the peripheral speed of the conveyance roller is decreased. As a result, after the disc is inserted from the insertion slot, the time until the disc is clamped by the turntable in the housing becomes long, and the waiting time until the data recorded on the disc is reproduced is very long. Become.

  The present invention solves the above-described conventional problems, and when a disk is carried into the inside of the housing by the rotational force of the conveyance roller, the disk can be fed at a speed higher than the peripheral speed of the conveyance roller. An object of the present invention is to provide a disc device that can be used.

The present invention relates to a disk device including a transport mechanism that transports a disk inserted from an insertion port of the housing toward the inside of the housing.
The transport mechanism includes a transport roller that is rotationally driven by a motor, a sandwiching member that sandwiches the disk by the transport roller, and a sandwiching force setting mechanism that sets a force to sandwich the disk by the transport roller and the sandwiching member. And
A pressure member that is urged in a direction crossing the loading direction of the disk is provided in the casing, and the center of the disk that is loaded into the casing is more than the contact position with the pressing member. When moving inward, the pressing force applied to the periphery of the disk of the pressure member acts on the disk toward the inside of the housing,
The clamping force between the conveyance roller and the clamping member is such that the disk that has received the pressing force is fed between the conveyance roller and the clamping member at a speed faster than the rotational peripheral speed of the conveyance roller. It is characterized by being set.

  In the disk device of the present invention, when the disk is carried inwardly by the conveying roller rotating at a predetermined torque to the vicinity of a position approximately half the diameter of the disk, the pressure member is then transferred from the pressure member to the disk. Due to the applied pressing force, the disk is fed at a speed higher than the peripheral speed of the conveying roller. Therefore, even if the number of rotations of the transport roller is relatively low, the disk can be quickly sent into the casing, and the center hole of the disk can be installed on the turntable of the rotation drive unit provided in the casing. Alternatively, the disk can be sent to a disk storage position in the housing.

  The present invention can be configured such that the clamping force between the transport roller and the clamping member is enhanced by the clamping force setting mechanism during the carry-out operation of ejecting the disk from the housing.

  As described above, by increasing the clamping force at the time of unloading, the disk sandwiched between the transport roller and the sandwiching member can be reliably transferred in the unloading direction even if the pressing force of the pressure member is applied.

  For example, the clamping force setting mechanism reduces the clamping force with the rotational force of the transport roller when the transport roller rotates in the direction to carry the disk into the housing, and the transport roller moves in the unloading direction. It has an urging mechanism that strengthens the clamping force with the rotational force of the transport roller when rotating.

  However, the urging mechanism that varies the clamping force by the clamping force applying member is not limited to the mechanism that uses the rotational force of the conveying roller. For example, a switching member that can reciprocate is provided in the housing, and the switching member can convey the clamping force. You may vary the force of the spring which clamps a roller and a clamping member.

  In the present invention, the clamping force setting mechanism is provided on one end side of the conveying roller, and the clamping force between the conveying roller and the clamping member is made constant by a spring member on the other end side of the conveying roller. What is set is preferable.

  As described above, the clamping force between the conveyance roller and the clamping member is set weak on one end side of the conveyance roller by the clamping force setting mechanism, and the clamping force between the conveyance roller and the clamping member is set strongly on the other end side. Thus, the disk can be sent with a strong conveying force on the other end side, and the disk can be quickly fed with the pressure member only on the one end side. Even if it is received, it can be transported without stopping.

  In the present invention, the pressure member may be provided between the insertion port and the transport roller. Alternatively, the pressure member may be provided on the side opposite to the insertion port with the conveying roller interposed therebetween.

  In the present invention, after the disk is carried to a predetermined position, the disk can be fed into the housing at a speed higher than the peripheral speed of the transport roller. The time to reach a predetermined position in the housing can be shortened.

1 is an exploded perspective view showing a main part of a disk device according to an embodiment of the present invention; An exploded perspective view showing a clamping force setting mechanism provided in the disk device; A side view showing the operation of the clamping force setting mechanism during disk conveyance, A side view showing the operation of the clamping force setting mechanism after the completion of disk conveyance, A plan view of a disk device showing a disk loading operation; A plan view of the disk device showing after the completion of loading of the disk,

  As shown in FIGS. 3 to 6, the in-vehicle disk device 1 according to the embodiment of the present invention has a housing 2. The housing | casing 2 is formed with the metal plate, The volume is a magnitude | size of what is called 1DIN. The disk device 1 is installed such that the housing 2 is buried in the instrument panel in the vehicle interior, and the front surface 2a of the housing 2 appears in the vehicle interior. A decorative panel is fixed to the front surface 2a of the housing 2, and various operating members and display members are provided on the decorative panel.

  An insertion port 3 is opened on the front surface 2 a of the housing 2, and an opening leading to the insertion port 3 is also formed on the decorative panel. The disk D inserted into the housing 2 is a DVD, CD or other high capacity disk having a diameter of 12 cm. The inner width dimension of the insertion slot 3 is slightly wider than the diameter of the disk D, and the height dimension of the insertion slot 3 is It is slightly wider than the thickness dimension of the disk D.

  As shown in FIGS. 3 and 4, a drive base 4 is provided inside the housing 2. The drive base 4 is elastically supported by a damper inside the housing 2. The drive base 4 is provided with a rotation drive unit 5. The rotation drive unit 5 includes a spindle motor 6 fixed to the drive base 4 and a turntable 7 fixed to the rotation shaft of the spindle motor 6. A clamper (not shown) facing the turntable 7 is provided inside the housing 2, and the center hole Da of the disk carried into the housing 2 is installed on the turntable 7, and the center The peripheral portion of the hole Da is sandwiched between the turntable 7 and the clamper.

  A transport mechanism 10 is provided inside the insertion port 3 of the housing 2. As shown in FIG. 1, the transport mechanism 10 is provided with a metal roller shaft 11 extending in the X1-X2 direction which is the left-right direction. A conveyance roller 12 made of a material is provided. The transport roller 12 has a symmetrical taper shape in which the diameter is large at the right end (X1 side) end portion 12a and the left end (X2 side) end portion 12b and the intermediate portion 12c has a small diameter.

  The conveying mechanism 10 is provided with a clamping member 13 that is opposed to the upper side of the conveying roller 12. The clamping member 13 is made of a synthetic resin material having a low friction coefficient. On the right side (X1 side) of the clamping member 13, there is formed a right clamping part 13a that sandwiches the disk D with the right part of the transport roller 12, and on the left side (X2 side) the disk D with the left part of the transport roller 12 The left side clamping part 13b which pinches | interposes is formed. The lower surface of the right clamping part 13a is inclined so as to face upward as it goes in the X1 direction, and the lower surface of the right clamping part 13a follows the taper shape of the right part of the transport roller 12. The left holding portion 13b is similarly inclined to follow the taper shape of the left portion of the conveying roller 12.

  When the disk D is not interposed, the transport roller 12 can be in close contact with the lower surface of the right clamping unit 13a and the lower surface of the left clamping unit 13b in a long range in the axial direction.

  As shown in FIG. 1, the right end portion of the roller shaft 11 is rotatably supported by a bearing portion 15a provided on the right roller bracket 14a. A support shaft 16a extending in the X1 direction is formed integrally with the end portion on the carry-out side (Y2 side) of the right roller bracket 14a, and this support shaft 16a is formed on the right side surface of the housing 2 or inside the housing 2. Is rotatably supported by a fixing member provided on the surface.

  A right spring member 17a is hung on the lower end of the right roller bracket 14a. By the elastic force of the right spring member 17a, the right roller bracket 14a is urged in the clockwise direction, that is, the direction in which the roller shaft 11 is lifted, with the support shaft 16a as a fulcrum. Due to the urging force of the right spring member 17 a, the right peripheral edge (outer peripheral edge) of the disk D inserted from the insertion port 3 is formed between the right tapered portion of the transport roller 12 and the right clamping portion 13 a of the clamping member 13. Sandwiched between.

  The left end portion of the roller shaft 11 is rotatably supported by a bearing portion 15b provided on the left roller bracket 14b. A support shaft 16b extending in the X2 direction is integrally formed at the end of the left roller bracket 14b on the carry-out side (Y2 side). The support shaft 16b is formed on the left side surface of the housing 2 or inside the housing 2. Is rotatably supported by a fixing member provided on the surface.

  A left spring member 17b is hung on the lower end of the left roller bracket 14b. Due to the elastic force of the left spring member 17b, the left roller bracket 14b is urged clockwise with the support shaft 16b as a fulcrum, and with the urging force of the left spring member 17b, the peripheral edge on the left side of the disk D is moved to the transport roller 12. Between the left side taper portion and the left side clamping portion 13b of the clamping member 13.

  As shown in FIG. 1, a right switching member 21a is provided inside the right side plate of the housing 2, and a left switching member 21b is provided inside the left side plate. The right switching member 21a and the left switching member 21b are moved in synchronization in the Y1 direction which is the carry-in direction and the Y2 direction which is the carry-out direction by the switching motor provided in the housing 2.

  As shown in FIG. 1, a switching cam groove 22a is formed on the inner surface of the right switching member 21a, and the right side (X1 side) end of the roller shaft 11 is slidably inserted into the switching cam groove 22a. A switching cam groove 22b is also formed on the inner surface of the left switching member 21b, and the left (X2 side) end of the roller shaft 11 is slidably inserted into the switching cam groove 22b. The switching cam groove 22a formed in the right switching member 21a and the switching cam groove 22b formed in the left switching member 21b have a plane symmetrical shape.

  The clamping member 13 shown in FIG. 1 is supported by a guide mechanism (not shown) provided inside the housing 2 so as to be able to move by a short distance in the vertical direction. Guide protrusions 18a and 18b are provided on the left end face (X2 side) of the clamping member 13, and similarly, guide protrusions 18a and 18b are provided on the right end face (X1 side) of the clamping member 13. Guide cam grooves (not shown) for guiding the guide protrusions 18a and 18b are formed on the right switching member 21a, and guide cam grooves (not shown) for guiding the guide protrusions 18a and 18b are formed on the left switching member 21b. Has been.

  When the disk D is loaded, the right switching member 21a and the left switching member 21b are moved in the Y1 direction in synchronization, the right end of the roller shaft 11 is disengaged from the right switching cam groove 22a, and the roller shaft 11 The left end portion is out of the left switching cam groove 22b. Therefore, the right roller bracket 14a is rotated clockwise by the biasing force of the right spring member 17a, and the left roller bracket 14b is rotated clockwise by the biasing force of the left spring member 17b. At this time, the clamping member 13 is slightly lowered by the guide cam groove formed in the right switching member 21a and the guide cam groove formed in the left switching member 21b.

  Therefore, as shown in FIG. 3, the transport roller 12 is pressed against the lower surface of the right sandwiching portion 13 a and the lower surface of the left sandwiching portion 13 b of the sandwiching member 13, and the disc D inserted from the insertion port 3 is connected to the transport roller 12. It can be clamped with the clamping member 13.

  When the loading of the disk D is completed, the right switching member 21a and the left switching member 21b are moved in the Y2 direction in synchronization. At this time, the right end portion of the roller shaft 11 is lowered by the switching cam groove 22a of the right switching member 21a, and the left end portion of the roller shaft 11 is lowered by the switching cam groove 22b of the left switching member 21b. At the same time, the clamping member 13 is slightly lifted by the guide cam groove formed in the right switching member 21a and the guide cam groove formed in the left switching member 21b.

  As a result, as shown in FIG. 4, the conveying roller 12 and the clamping member 13 are separated from the disk D held on the turntable 7 in the vertical direction.

  As shown in FIG. 1, a driven gear 25 is fixed to the right end of the roller shaft 11. When the roller shaft 11 is lifted to a position where the disk D can be sandwiched as shown in FIG. 3, the driven gear 25 (not shown) is engaged. And the power of the conveyance motor provided in the inside of the housing | casing 2 is given to the driven gear 25 from a drive gear, and the roller shaft 11 is rotationally driven. At this time, the power of the transport motor is decelerated by the gear train and applied to the driven gear 25.

  As shown in FIGS. 1 to 4, a clamping force setting mechanism 30 is provided on the left side (X2 side) of the transport mechanism 10.

  As shown in FIG. 2, the clamping force setting mechanism 30 is provided with a fixed bracket 31 fixed inside the housing 2, and a support shaft that protrudes leftward (X2 direction) on the fixed bracket 31. 32 is fixed. A biasing rotation member 33 is provided in the clamping force setting mechanism 30. A bearing portion 33a provided on the Y1 side of the biasing rotation member 33 is inserted into the base portion of the support shaft 32, and the biasing rotation member 33 is centered on the support shaft 32 that is a fixed fulcrum inside the housing 2. It is supported rotatably.

  A center hole 34 a of the urging gear 34 is rotatably inserted in the tip portion of the support shaft 32. The distal end portion of the support shaft 32 protrudes to the X2 side from the center hole 34a of the urging gear 34, and a retaining ring is attached to the distal end portion of the urging gear 34. The urging gear 34 moves the support shaft 32 without detaching from the support shaft 32. It is supported so that it can rotate freely as a center.

  A compression coil spring is inserted through the outer periphery of the support shaft 32 as a friction spring 35, and the friction spring 35 is sandwiched between the biasing rotation member 33 and the biasing gear 34, and the biasing rotation member 33. A frictional force is acting between the urging gear 34 and the urging gear 34. When the urging gear 34 rotates by this frictional force, the urging rotation member 33 tries to rotate together, and when the urging rotation member 33 is forcibly stopped, only the urging gear 34 rotates. A plate spring may be used as the friction spring 35. Alternatively, the urging gear 34 is sandwiched between the urging rotation member 33 and the retaining ring fixed to the support shaft 32, and the urging rotation member 33 is sandwiched by this clamping pressure. And a biasing gear 34 may generate a frictional force.

  As shown in FIG. 2, the biasing rotation member 33 is formed with a long hole 33b that opens in the Y2 direction. A connecting shaft portion 11a protruding from the left end (X2 side) end portion 12b of the transport roller 12 is formed at the left end portion of the roller shaft 11, and the connecting shaft portion 11a is slidably inserted into the elongated hole 33b. Yes. A connecting gear 36 is provided on the X2 side of the biasing rotation member 33. A spline hole 36a is formed in the connecting gear 36, a chamfered portion 11b is formed in the connecting shaft portion 11a, the spline hole 36a is fitted with the connecting shaft portion 11a, and the connecting gear 36 rotates integrally with the roller shaft 11. It is fixed so that it can.

  A rotation shaft end 11c that protrudes in the X2 direction from the connecting shaft portion 11a is provided at the left end portion of the roller shaft 11. The rotary shaft end 11c protrudes further toward the X2 side than the connecting gear 36 and is rotatably supported by the bearing portion 15b of the left roller bracket 14b.

  As shown in FIG. 4, when the left roller bracket 14 b rotates counterclockwise and the roller shaft 11 and the conveying roller 12 are lowered, the coupling gear 36 is separated from the biasing gear 34. As shown in FIG. 3, when the left roller bracket 14b is rotated clockwise and the roller shaft 11 and the conveying roller 12 are lifted, the teeth formed on the outer periphery of the coupling gear 36 and the outer periphery of the biasing gear 34 are shown. , And the rotational force of the roller shaft 11 is transmitted to the urging gear 34 via the connecting gear 36.

  In this embodiment, the linking mechanism 36, the urging gear 34, the friction spring 35, and the urging rotation member 33 constitute an urging mechanism.

  As shown in FIG. 1, a pressure detection mechanism 40 is provided between the transport roller 12 and the insertion port 3 inside the housing 2.

  In the pressure detection mechanism 40, a right detection member 41a and a left detection member 41b are supported inside the front surface 2a of the housing 2 so as to be slidable in the X1-X2 direction. The right detection member 41a is urged in the X2 direction by the right pressure spring 42a, and the left detection member 41b is urged in the X1 direction by the left pressure spring 42b. The right detection member 41a is provided with a right pressure detection pin 43a that is a right pressure member, and the left detection member 41b is provided with a left pressure detection pin 43b that is a left pressure member. The right pressure detection pin 43a and the left pressure detection pin 43b are arranged inside the insertion port 3 so as to cross the insertion port 3 vertically.

  Inside the housing 2, a right detection switch SW1 which is a right detection member and a left detection switch SW2 which is a left detection member are provided. As shown in FIGS. 1 and 6, when the disk D is not in contact, the right pressure detection pin 43a and the left pressure detection pin 43b face the left and right with a sufficiently shorter interval than the diameter of the disk D. ing. At this time, the detection output of the right detection switch SW1 is switched ON by the right detection member 41a, and the detection output of the left detection switch SW2 is switched ON by the left detection member 41b.

  As shown in FIG. 5, when the disk D is inserted from the insertion slot 3, the right pressure detection pin 43a is pushed to the right by the outer peripheral edge of the disk D, and the right detection member 41a is detached from the right detection switch SW1. The detection output of the right detection switch SW1 is switched to OFF. Further, the left pressurization detection pin 43b is pushed to the left by the outer peripheral edge of the disk D, the left detection member 41b moves away from the left detection switch SW2, and the detection output of the left detection switch SW2 is switched to OFF.

Next, the operation of the disk device 1 will be described.
When waiting for the insertion of the disk D, the right switching member 21a and the left switching member 21b shown in FIG. 1 are moved together in the Y1 direction synchronously, and the right end of the roller shaft 11 is on the right switching cam groove 22a. The left end portion of the roller shaft 11 is separated from the left switching cam groove 22b. Further, the clamping member 13 is slightly lowered by the guide cam grooves formed in the right switching member 21a and the left switching member 21b.

  As shown in FIG. 3, the right roller bracket 14a is rotated clockwise by the biasing force of the right spring member 17a, and the left roller bracket 14b is rotated clockwise by the biasing force of the left spring member 17b. The roller shaft 11 is lifted, and the conveying roller 12 is pressed against the lower surface of the clamping member 13.

  In the clamping force setting mechanism 30 provided on the left side of the transport mechanism 10, the connecting gear 36 fixed to the left end portion of the roller shaft 11 is engaged with the biasing gear 34 supported by the fixed bracket 31.

  When the disk D is not inserted, as shown in FIG. 1, the right pressure detection pin 43a is moved to the moving end in the X2 direction by the right pressure spring 42a, and the left pressure detection pin 43b is pressed to the left. It is moved to the end of movement in the X1 direction by the spring 42b. At this time, the right pressure detection pin 43a and the left pressure detection pin 43b are opposed to each other at an interval shorter than the diameter of the disk D. At this time, the detection outputs of the right detection switch SW1 and the left detection switch SW2 are both ON.

  5, when the disk D is inserted into the insertion port 3 of the housing 2, the right pressure detection pin 43a is pushed to the right (X1 side) by the outer peripheral edge of the disk D, The right detection member 41a moves to the right side and the right detection switch SW1 is switched OFF. Further, the left pressurization detection pin 43b is pushed to the left side (X2 side) by the outer peripheral edge of the disk D, the left detection member 41b moves to the left side, and the left detection switch SW2 is turned OFF.

  When one of the detection switches SW1 and SW2 is turned OFF, the control unit determines that the disk D has been inserted, the transport motor is started, the power is decelerated and transmitted to the driven gear 25, and together with the driven gear 25 The roller shaft 11 starts to rotate in the carry-in direction (counterclockwise direction indicated by α1 in FIG. 3).

  In addition to the detection switches SW1 and SW2, an optical detection member that detects the insertion of the disk D may be provided, and the transport motor may be started when the optical detection member detects the disk.

  In FIG. 3, when the conveyance motor is started and the roller shaft 11 and the connecting gear 36 are rotated in the direction α1, which is the carrying-in direction, the urging gear 34 meshed with the connecting gear 36 is rotated in the clockwise direction β2. As shown in FIG. 2, a friction spring 35 is interposed between the biasing gear 34 and the biasing rotation member 33, and a frictional force is generated between the biasing gear 34 and the biasing rotation member 33. Therefore, a biasing force in the β2 direction is applied from the biasing gear 34 to the biasing rotation member 33, and the roller shaft 11 is biased downward. Therefore, the clockwise moment applied from the left spring member 17b to the left roller bracket 14b is reduced by the biasing force in the β2 direction of the biasing rotation member 33.

  As a result, when the roller shaft 11 is rotating in the direction α1, which is the carry-in direction, the holding force of the disk D by the left side portion of the transport roller 12 and the left gripping portion 13b on the left side (X2 side) of the transport mechanism 10 Is reduced. On the other hand, on the right side (X1 side) of the transport mechanism 10, since a large clockwise moment is always applied from the right spring member 17a to the right roller bracket 14a without changing, The clamping force of the disk D by the right clamping unit 13 a is set stronger than that on the left side of the transport mechanism 10.

  As shown in FIG. 5 (i), when the disc D is inserted from the insertion port 3, the outer peripheral edge of the disc D hits the right pressure detection pin 43a and the left pressure detection pin 43b. When the disk D is pushed in, the right pressure detection pin 43a and the left pressure detection pin 43b that slide with the outer peripheral edge of the disk D are expanded and the outer peripheral edge of the disk D is moved between the transport roller 12 and the clamping member 13. It reaches the position where it is pinched.

  As shown in FIG. 1, the right pressure detection pin 43a is biased in the X2 direction by the right pressure spring 42a, and the left pressure detection pin 43b is biased in the X1 direction by the left pressure spring 42b. The disk D inserted from the insertion port 3 always receives resistance from the right pressure detection pin 43a and the left pressure detection pin 43b.

  The component force in the Y2 direction of the resistance force applied to the disk from the right pressure detection pin 43a and the left pressure detection pin 43b is such that the outer peripheral edge of the disk D is on the right pressure detection pin 43a and the left pressure detection pin 43b. Immediately after hitting, the disk D moves in the Y1 direction, and gradually decreases as the right pressure detection pin 43a and the left pressure detection pin 43b are spread. When the outer peripheral edge of the disk D is sandwiched between the transport roller 12 and the holding member 13, the right pressure detection pin 43a and the left pressure detection pin 43b are widened to some extent. The resistance force toward the Y2 direction is reduced.

  On the left side of the conveyance mechanism 10, the clamping force between the conveyance roller 12 and the left clamping unit 13 b is set to be relatively weak, but when the disk D is sandwiched between the conveyance roller 12 and the clamping member 13, Since the resistance force from the detection pin 43a and the left pressure detection pin 43b is also weakened, the disk D can be carried in the Y1 direction by the frictional force between the transport roller 12 and the disk D, and the right pressure is applied during that time. The interval between the detection pin 43a and the left pressure detection pin 43b is widened.

  When the disk D is loaded to the vicinity of the position (ii) shown in FIG. 5 and the center D0 of the disk D moves to the Y1 side from the line connecting the centers of the right pressure detection pin 43a and the left pressure detection pin 43b. The pressing force to push the disc D in the Y1 direction is applied by the component force of the pressing force F urging the right pressure detection pin 43a and the left pressure detection pin 43b.

  The outer peripheral edge on the right side of the disk D moved to the position (ii) is clamped with a strong force by the right side portion of the transport roller 12 and the right clamping portion 13a of the clamping member 13. For this reason, even if a pressing force in the Y1 direction acts on the disk D due to the component force of the applied pressure F, the disk D and the transport roller 12 hardly slip and are sandwiched between the right side portion of the transport roller 12 and the right gripping portion 13a. This portion is transferred in the Y1 direction at a speed that matches the peripheral speed of the surface of the transport roller 12.

  On the other hand, the clamping force between the left portion of the conveying roller 12 and the left clamping portion 13b of the clamping member 13 is weakened by the clamping force setting mechanism 30, and the clamping force at this time is applied to the left pressure detection pin 43b. The outer peripheral edge on the left side of the disk D pressed in the Y1 direction by the pressure F is set so as to be able to slip with the transport roller 12.

  Therefore, a clockwise moment M having a fulcrum P at the contact portion between the outer peripheral edge on the right side and the conveying roller 12 acts on the disk D, and the peripheral edge on the left side of the disk D is the peripheral speed of the conveying roller 12. The disk D is pushed in the Y1 direction at a faster speed, and the disk D is rotated in the clockwise direction around the fulcrum P, so that the disk D is fed in at an earlier time than when it is carried in only by the conveying force of the conveying roller 12. As shown in FIG. 6, the disk D is fed to a normal loading position in the housing 2, and the outer peripheral edge of the disk D abuts against a stopper 51 provided at the rear of the housing 2 to position the disk D. The

  Thereafter, the right switching member 21a and the left switching member 21b shown in FIG. 1 move in the Y2 direction in synchronization, and as shown in FIG. 4, the switching cam groove 22a of the right switching member 21a and the switching cam of the left switching member 21b. The roller shaft 11 is lowered by the groove 22b and the conveying roller 12 is separated from the disk D. At the same time, the clamping member 13 is lifted by the guide cam grooves provided in the right switching member 21a and the left switching member 21b, and the clamping member 13 is separated from the disk D. Further, the clamper facing the turntable 7 is lowered, the center portion of the disk D is sandwiched between the turntable 7 and the clamper, and the disk D is clamped to the turntable 7.

  As shown in FIG. 6, when the loading of the disk D is completed, the right pressure detection pin 43a and the left pressure detection pin 43b are returned to the initial positions approaching each other.

  Then, the turntable 7 and the disk D are rotated and driven by the driving force of the spindle motor 6, and information recorded on the disk D is reproduced or recorded on the disk D by an optical head (not shown).

  Next, when carrying out the disk D in the housing 2, after the spindle motor 6 is stopped, the right switching member 21a and the left switching member 21b shown in FIG. 1 move in the Y1 direction, and the roller shaft 11 is lifted again. Then, the clamping member 13 is lowered, and the disk D is clamped between the conveying roller 12 and the clamping member 13. After the clamp of the disk D is released, the transport motor is started and the roller shaft 11 is rotated in the β1 direction shown in FIG.

  Since the coupling gear 36 rotates in the β1 direction together with the roller shaft 11, the biasing gear 34 meshing with the rotation rotates in the α2 direction, and the frictional force of the friction spring 35 counteracts the biasing rotation member 33. A biasing force in the α2 direction that is clockwise is applied. Therefore, on the left side (X2 side) of the transport mechanism 10, in addition to the biasing force of the left spring member 17b, the rotation biasing force of the biasing rotation member 33 is applied, so that the left side portion of the transport roller 12 is the left clamping portion 13b. Can be pressed with a strong force.

  Immediately after the start of unloading, the disk D is sandwiched with a strong force between the transport roller 12 and the sandwiching member 13 on both the right and left sides of the transport mechanism 10, and a large transport force in the Y2 direction is applied to the disk D. When the disk D is carried out, the outer peripheral edge of the disk D hits the right pressure detection pin 43a and the left pressure detection pin 43b at the initial position shown in FIG. Immediately after the disk D hits the right pressure detection pin 43a and the left pressure detection pin 43b at the initial position, the resistance force applied to the disk D is maximized. Since it is strongly clamped and sent out in the Y2 direction, the distance between the right pressure detection pin 43a and the left pressure detection pin 43b can be easily widened at the outer peripheral edge of the disk D, and the disk D is inserted into the insertion slot 3 as it is. Can be taken out from the outside.

  In the above-described embodiment, the left spring member 17b for urging the left roller bracket 14b in the clockwise direction is provided. However, the left spring member 17b is eliminated, and the clamping force setting mechanism 30 is used to set the clamping force. May be performed. That is, the holding force between the left side portion of the conveying roller 12 and the holding member 13 is extremely small at the time of carry-in, and only the urging force at which the urging turning member 33 tries to turn in the α2 direction at the time of unloading. The clamping force by the clamping member 13 may be exerted.

  In the transport mechanism 10, a pinch roller that sandwiches the disk with the transport roller 12 may be used as the clamping member 13.

  Further, the right pressure detection pin 43a and the left pressure detection pin 43b may be provided on the Y1 side with respect to the transport roller 12.

  In the case where the disk device is a disk exchange type disk device that stores a plurality of disks in the housing 2, the disk D is carried into the disk storage location by the transport mechanism 10.

DESCRIPTION OF SYMBOLS 1 Disc apparatus 2 Housing | casing 3 Insertion slot 5 Rotation drive part 7 Turntable 10 Conveying mechanism 11 Roller shaft 12 Conveying roller 13 Holding member 14a Right side roller bracket 14b Left side roller bracket 17a Right side spring member 17b Left side spring member 21a Right side switching member 21b Left side Switching member 22a, 22b Switching cam groove 30 Holding force setting mechanism 33 Energizing rotation member 34 Energizing gear 36 Linking gear 35 Friction spring 40 Pressurization detection mechanism 42a Right pressure spring 42b Left pressure spring 43a Right pressure detection pin 43b Left pressure detection pin D Disc

Claims (5)

In a disk device equipped with a transport mechanism for carrying a disk inserted from an insertion port of the housing toward the inside of the housing,
The transport mechanism includes a transport roller that is rotationally driven by a motor, a sandwiching member that sandwiches the disk by the transport roller, and a sandwiching force setting mechanism that sets a force to sandwich the disk by the transport roller and the sandwiching member. And
A pressure member that is urged in a direction crossing the loading direction of the disk is provided in the casing, and the center of the disk that is loaded into the casing is more than the contact position with the pressing member. When moving inward, the pressing force applied to the periphery of the disk of the pressure member acts on the disk toward the inside of the housing,
The clamping force between the conveyance roller and the clamping member is such that the disk that has received the pressing force is fed between the conveyance roller and the clamping member at a speed faster than the rotational peripheral speed of the conveyance roller. A disk device that is set.   The disk device according to claim 1, wherein a clamping force between the transport roller and the clamping member is increased by the clamping force setting mechanism during a carry-out operation for discharging the disk from the housing.   The holding force setting mechanism weakens the holding force by the rotational force of the transport roller when the transport roller rotates in the direction to carry the disk into the housing, and the transport roller rotates in the unloading direction. The disk device according to claim 2, further comprising an urging mechanism that strengthens the clamping force with a rotational force of the transport roller.   The clamping force setting mechanism is provided on one end side of the conveying roller, and the clamping force between the conveying roller and the clamping member is set to a constant force by a spring member on the other end side of the conveying roller. The disk device according to any one of claims 1 to 3.   The disk device according to claim 1, wherein the pressure member is provided between the insertion port and the transport roller.

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