JP3916347B2 - Disk transfer device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disk transfer device for transferring a disk into and out of the apparatus.
[0002]
[Prior art]
The present applicant arranges a plurality of drive rollers that are in pressure contact with the periphery of the disk substantially in parallel with the disk transfer direction, and a guide member having a U-shaped cross section so as to sandwich the disk between the drive rollers. This disk transfer device is proposed as Japanese Patent Application No. 10-361820.
[0003]
In such a disk transfer device, a spur gear is provided coaxially with a plurality of drive rollers, and the spur gears are connected by a connecting gear. By driving any one of the connecting gears, the driving rollers are each driven to rotate in the same rotational direction.
[0004]
[Problems to be solved by the invention]
In this conventional example, the drive roller and the spur gear are arranged coaxially, so that the height of the disk transfer mechanism unit needs to be at least the height at which the drive roller and the spur gear are stacked. Therefore, it is required to make the height of the disk transport mechanism as small as possible.
[0005]
[Means for Solving the Problems]
A disk transfer device according to the present invention is arranged to face a plurality of drive pulleys arranged along a transfer path of a recording medium and to face the plurality of drive pulleys so as to transfer the recording medium in contact with the peripheral edge of the recording medium. A guide member that sandwiches the periphery of the recording medium with the plurality of drive pulleys, and is disposed in substantially the same plane as the transfer plane of the recording medium that is transferred by the plurality of drive pulleys, and abuts against the plurality of drive pulleys, respectively. Accordingly, the driving member is configured to rotate the plurality of driving pulleys.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment to which the present invention is applied will be described with reference to the drawings.
[0007]
《Disc holder》
FIG. 1 is a plan view of a principal part showing an initial state in which no disc is accommodated in a changer type disc reproducing apparatus 1 capable of accommodating 6 discs. On the back side of the apparatus, disk holders 11 to 16 that sandwich the periphery of a 12 cm disk are stacked. Since the range in which the disc is clamped by the disc holders 11 to 16 is only the peripheral portion of the disc, even when the disc is damaged due to contact with the disc holders 11 to 16, the information recorded on the disc is affected. Is configured to be minimal. In FIG. 1, only the sixth disk holder 16 located at the top of the disk holders 11 to 16 is shown.
[0008]
The structure of the disc holder 11 will be described with reference to FIG. 23 which is a cross-sectional view of the disc holder 11 in the horizontal direction. The disc holder 11 includes a pair of left and right plates 19 and 20 formed of resin, and a metal connecting bar 21 that connects the plates 19 and 20. The connecting bar 21 has a function of connecting the left and right plates 19 and 20 to each other. The plates 19 and 20 are each formed with a disk holding part 32 having a U-shaped cross section over a predetermined angular range, and the disk holding part 32 holds the periphery of the disk.
[0009]
Holes 17 and 18 are formed in the plates 19 and 20, respectively, and engagement pins 22 are formed so as to protrude from the holes. This engagement pin 22 is fitted in a cam groove 33 formed in a screw shaft 30 described later in order to move the disk holders 11 to 16 in a direction perpendicular to the paper surface in FIG. When the disk holder 11 is thermally expanded, the respective plates 19 and 20 extend in the longitudinal direction connecting the holes 17 and 18. In order to absorb this expansion, the holes 18 are formed to be slightly larger in the longitudinal direction. It is made into a shape. The other disk holders 12 to 16 have the same configuration as the disk holder 11.
[0010]
In order to reduce the size of the arrow FG direction, which is the depth direction of the disc reproducing apparatus 1, the front end portion in the arrow F direction of the disc held by the disc holders 11 to 16 and the depth end portion of the disc reproducing device 1 are used. It is important to make the gap between the two as short as possible. Here, in the present embodiment, the plates 19 and 20 are connected by the connecting bar 21, and the diameter thereof is about 1 mm, and the function can be sufficiently achieved. Therefore, the depth direction of the apparatus can be made as small as possible, which contributes to the downsizing of the disk reproducing apparatus 1 in the depth direction.
[0011]
《Screw shaft》
10 to 12 are side views of the screw shaft 30. FIG. 10 shows a state where the first disc holder 11 is selected, FIG. 11 shows a fourth disc holder 14 and FIG. 12 shows a sixth disc holder 16 selected. Respectively. One cam groove 33 into which the engagement pin 22 is inserted is formed on the surface of the cylindrical screw shaft 30. A spur gear 34 is attached to each lower end portion of the screw shaft 30, and a required screw shaft drive mechanism 82 including a motor, a reduction gear mechanism, and the like meshes with each other, whereby the rotation direction and the rotation position of the screw shaft 30 are controlled. The The four spur gears 34 are connected to each other by a connection mechanism (not shown), and are driven to rotate in the same direction at the same rotation angle.
[0012]
<Disk drive mechanism>
In FIG. 1, as a disk transfer means for transferring a disk inserted from an opening (not shown) formed in the front panel 2 of the apparatus 1 to the reproduction position or the disk holders 11 to 16, on the left side in FIG. A disk drive mechanism 40 composed of a plurality of drive rollers and a guide member 50 for sandwiching the disk between the disk drive mechanism 40 and the disk drive mechanism 40 are arranged on the right side.
[0013]
The disk drive mechanism 40 is provided with four drive rollers 41 to 44 that have grooves formed on the peripheral surface thereof so as to sandwich the periphery of the disk and are arranged along the disk transfer direction. The drive roller 41 is pivotally supported on a roller support plate 48 that is rotatable about a shaft 36 and biased counterclockwise. When the disk is inserted between the drive roller 41 and the guide member 50, the roller support plate 48 is rotated clockwise against the urging force. In order to detect this rotational position and rotational speed, a potentiometer 49 is provided. The rotary shaft 37 of the potentiometer 49 is provided with a gear (not shown) and meshes with a gear portion 35 formed on the roller support plate 48.
[0014]
The driving rollers 42 to 44 are rotatably supported by rotating shafts 23 to 25, respectively, and are supported on roller arms 45 to 47 urged clockwise. In order to drive these drive rollers 42 to 44, a first timing belt 26 having teeth formed inside is used. The timing belt 26 is wound around each component in the following order. That is, the pulleys 171 and 172, the driving roller 44, the pulley 29 attached coaxially with the rotating shaft 25 of the roller arm 47, the driving roller 43, the pulley 28 attached coaxially with the rotating shaft 24 of the roller arm 46, the drive A pulley 42 that is coaxially attached to the rotation shaft 23 of the roller 42, the roller arm 45, and a tension pulley 173 that is rotatable between the dotted line shown in FIG. 1 in order to keep the tension of the timing belt 26 constant. The timing belt 26 is stretched in the order of the pulley 174 whose rotation shaft is the rotation shaft of the tension pulley 173 and the pulley 171 described above.
[0015]
The timing belt 26 is located on the same plane as the transfer plane of the disk driven by the drive rollers 42 to 44. FIG. 24 is a sectional view of the drive roller 42 in a state where the disk 101 is in contact with the drive roller 42. On the opposite side of the portion of the drive roller 42 that is in contact with the disk, the outer periphery of the timing belt 26 contacts the drive roller 42 to drive the drive roller 42 in rotation. With this configuration, there is no need to provide a gear or the like for driving the drive roller 42 in a plane different from the plane that contacts the disk 101 in the drive roller 42, and therefore the height direction of the disk drive mechanism 40 can be reduced. In order to improve the frictional force between the disk 101 and the timing belt 26, the drive roller 42 to 44 are provided with rubber rings 59.
[0016]
The driving rollers 42 to 44 that transfer the disk by being pressed against the periphery of the disk are driven by the first timing belt 26, and teeth are formed on the inside to drive the driving roller 41 and the timing belt 26 described above. A second timing belt 76 is provided.
[0017]
The second timing belt 76 is disposed on the main chassis 4 and is rotationally driven in both forward and reverse directions by a driving pulley 175 that is rotationally driven by a belt driving mechanism 84 including a motor, a reduction gear mechanism, and the like. Since the belt 76 is wound around the driving pulley 175 over a predetermined angle, pulleys 176 and 177 are arranged on both sides so as to sandwich the driving pulley 175. The timing belt 76 is connected to a drive pulley 175 via a drive pulley 175, pulleys 177, 178, 179, 180, a pulley 181 and pulleys 174, 182, 183, and 176 that are attached coaxially to the shaft 36 of the roller support plate 48. It is spanned to each pulley on the route back to. The pulley 174 is composed of two pulleys coaxially, and the first timing belt 26 and the second timing belt 76 are stretched in different planes.
[0018]
On the other hand, the guide member 50 has a U-shaped cross section so as to hold the peripheral edge of the disk, and extends in the disk transfer direction. The disk drive mechanism 40 and the guide member 50 can be moved in parallel in the direction of the arrow DE in FIG. 1 by a connecting mechanism described later, and when the guide member 50 moves a required distance in the direction of the arrow E, the disk The drive mechanism 40 is connected so as to move the same distance in the direction of the arrow D opposite thereto.
[0019]
In the state where the disk is brought to the reproduction position, the protrusions 54 and 55 (see FIG. 13) are formed at equal intervals from the position where the guide member 50 should be in contact with the disk. In this reproduction position, the drive rollers 43 and 44 are similarly arranged at equally spaced positions. Accordingly, the disk at the reproduction position is stably supported by the protrusions 54 and 55 and the drive rollers 43 and 44. Further, at the leading ends of the projecting portions 54 and 55, actuator portions of detection switches 56 and 57 for detecting that the disc has been brought to the reproduction position are projected.
[0020]
FIG. 13 is a plan view showing a link mechanism for enabling the disk drive mechanism 40 and the guide member 50 described above to move in the direction of the arrow D-E, and is in a standby state shown in FIG. FIG. 14 is a plan view showing a state of the link mechanism that connects the disk drive mechanism 40 and the guide member 50 in the reproduction state.
[0021]
The roller arms 45 to 47, the roller support plate 48, and the pulleys 171 to 174 that support the driving rollers 42 to 44 around which the first timing belt 26 is stretched are indicated by an arrow D-E with respect to the main chassis 4. The first slide plate 111 guided so as to translate in the direction is pivotally supported. In addition, pulleys 178 to 180, 182, and 183 around which the second timing belt 76 is stretched are also supported by the slide plate 111. A rack 117 is formed on the slide plate 111 and meshes with a pinion gear 118 that is rotationally driven by a slide plate drive mechanism 85 including a motor, a reduction gear, and the like.
[0022]
On the other hand, a rack 127 is formed on the second slide plate 121 that is guided to move parallel to the main chassis 4 in the direction of the arrow D-E, and meshes with the pinion gear 118. . Therefore, when the pinion gear 118 is driven to rotate counterclockwise by the slide plate drive mechanism 85, the disk drive mechanism 40 supported by the slide plate 111 is translated in the direction of arrow D. On the other hand, the guide member 50 supported by the slide plate 121 is translated in the direction of arrow E.
[0023]
The drive pulley 175 and pulleys 176 and 177 adjacent to the drive pulley 175 are pivotally supported by the main chassis 4 so as not to be involved in the movement of the slide plate 111. These pulleys 175 to 177 are arranged at the same height as other pulleys through an opening 119 formed in the slide plate 111. Therefore, even if the slide plate 111 that pivotally supports the driving rollers 41 to 44 as driven members moves in the direction of the arrow DE, the driving pulley 175 is relatively moved in the direction of the arrow DE between the pulleys 178 and 183. Will move. Therefore, it becomes possible to arrange the drive source for driving the driven member arranged on the movable member on the fixed member.
[0024]
By detecting the position of the slide plate 111, the diameter of the disk being loaded can be determined. Therefore, a slide volume 135 is provided on the main chassis 4, and an actuator portion 136 is attached to the slide plate 111.
[0025]
As shown in FIG. 1, the slide volume 135 is such that the distance between the disk drive mechanism 40 and the guide member 50 is equal to or smaller than the diameter of the 8 cm disk, and the position of the slide plate 111 in the standby state enabling the disk loading. FIG. 4 shows the position of the slide plate 111 when it is completely clamped between the drive mechanism 40 and the guide member 50, the position of the slide plate 111 when the 12 cm disc is completely clamped between the disk drive mechanism 40 and the guide member 50, and FIG. Thus, the position of the slide plate 111 when the disk drive mechanism 40 and the guide member 50 are separated from the disk 101 is detected.
[0026]
<Disc playback mechanism>
As shown in FIG. 7, which is a front view corresponding to FIG. 1, a spindle motor 62 that rotationally drives a turntable 61 on which a disk is placed is disposed on a mechanical chassis 63. A clamper 71 is rotatably supported by a clamp arm 72 so as to clamp the disk between the turntable 61. The clamp arm 72 is rotatably supported on the mechanical chassis 63 by a shaft 73 so that the clamper 71 can approach or be separated from the turntable 61.
[0027]
Since the bent portion 74 is formed in the clamp arm 72 as shown in FIG. 7, when the guide member 50 moves to a position separated from the disk for reproducing the disk as shown in FIG. And a sufficient separation distance between the clamper arm 72 and the clamper arm 72.
[0028]
On the mechanical chassis 63, there is disposed an optical pickup 66 that is movable in the radial direction of the disk in accordance with the rotation of a feed screw 65 that is rotationally driven by a required motor (not shown). The reproduction of the information recorded on the disc is achieved by irradiating the disc with laser light emitted from the optical pickup 66 while reading the reflected light while rotating the disc by the spindle motor 62, and at least turns the disc. The table 61 and the optical pickup 66 constitute a reproducing means.
[0029]
A guide rail 67 is provided on the mechanical chassis 63 so that the optical pickup 66 moves in parallel in the direction of the arrow D-E in FIG. 1, and guides the movement of the optical pickup 66. Here, the mechanical chassis 63 can be translated in the direction of the arrow FG in FIG. 1 along a guide groove 92 provided in the base chassis 3 by a mechanical chassis driving mechanism 86 made of a motor or the like, and for the clamping operation. It is movable in the direction perpendicular to the recording surface of the disc. Further, during the clamping operation, when the mechanical chassis 63 moves in the direction approaching the recording surface of the disk, the clamper arm 72 is also rotated around the shaft 73 so as to be close to the turntable 61 by a coupling mechanism (not shown). Therefore, when the disk is played, the disk is driven to rotate in the same plane as the transfer plane transferred by the disk drive mechanism 40.
[0030]
The base chassis 3 is elastically supported by the damper 91 with respect to the main chassis 4. Further, the disk drive mechanism 40 and the guide member 50 are movably supported with respect to the main chassis 4, and the screw shaft 30 that supports the disk holders 11 to 16 so as to be vertically movable is rotatably supported. That is, the disk transfer means including the disk holders 11 to 16, the disk drive mechanism 40, and the guide member 50 is supported by the apparatus 1 without the damper 91.
[0031]
<Disk lock mechanism>
The main chassis 4 is provided with a disk lock mechanism 140 that is inserted into the center hole of the disk so that the disks stored in the disk holders 11 to 16 do not jump out in the direction of arrow G in FIG. 15 and 16 which are side views and front views in FIG. 16, FIG. 17 and FIG. 18 which are sectional views taken along lines HH and JJ in FIG. 16, FIG. 19 which is a side view in a locked state, and unlocking This will be described below with reference to FIGS. 20 and 21 which are perspective views in the state and the locked state.
[0032]
The upper lock bracket 141 disposed on the upper side with respect to the disk transfer plane includes an attachment part 142 and a disk lock part 143 for attaching to a chassis (not shown). A concave portion 144 is formed in the disk lock portion 143 so that a lock arm described later can be received.
[0033]
The lower lock bracket 151 disposed on the lower side with respect to the disk transfer plane has a substantially cylindrical shape, and a disk lock nut 153 is disposed in the inner space so as to be movable in the direction of arrow B-C. A cylindrical hole 154 is formed at the center of the disk lock nut 153, and a spiral protrusion (not shown) is formed on the surface of the hole 154. A camshaft 156 having a spiral groove 155 formed on the surface thereof is provided in order to engage the protrusion and move the disk lock nut 153 up and down. A spur gear 157 is provided at the lower part of the camshaft 156, and the spur gear 157 is exposed to the outside by cutting out a part of the mounting portion 152 of the lower lock bracket 151.
[0034]
A disk lock arm 159 pivotally supported by a shaft 158 at the upper portion of the lower lock bracket 151 is connected to a disk lock nut 153 by a pin 160. This axis 158 is in the direction of the arrow D-E in FIG. 16, that is, parallel to the transfer plane of the disk 101 and perpendicular to the transfer direction of the disk 101 in the apparatus 1.
[0035]
Therefore, when the spur gear 157 is driven to rotate clockwise by the lock arm drive mechanism 87 including a motor, a reduction gear, etc., the engagement between the concave groove 155 formed in the cam shaft 156 and the convex portion of the disk lock nut 153. As a result, the disc lock nut 153 moves in the arrow B direction. With this movement, the disk lock arm 159 rotates 90 degrees counterclockwise about the shaft 158 in FIG. 15, and is a gap that is a disk transfer plane formed between the upper lock bracket 141 and the lower lock bracket 151. Close.
[0036]
The upper lock bracket 141 is inserted into the center hole of the disk located on the upper side of the disk aligned with the disk transfer plane, and the lower lock bracket 151 is inserted into the center hole of the disk located on the lower side. The disk stored in the disk holders 11 to 16 is prevented from falling off.
[0037]
<Circuit configuration>
FIG. 22 shows a circuit diagram of the main part of the device 1. A laser beam is emitted from the optical pickup 66 to the disk 101 that is driven to rotate at a predetermined rotational speed by the spindle motor 62, and a reproduction signal obtained based on the reflected light is amplified by the RF amplifier 161, and then the signal processing circuit 162. Is input. The reproduction signal is subjected to necessary signal processing such as demodulation and error correction by the signal processing circuit 162, converted to an analog signal by the D / A converter 163, and output from the output terminal 164.
[0038]
Further, when the reproduction signal is input to the servo circuit 165, focus servo and tracking servo are performed on the optical pickup 66, and the spindle motor 62 is controlled to rotate at a required rotational speed.
[0039]
The microcomputer 166 that controls the operation of the apparatus 1 controls the signal processing circuit 162 and the servo circuit 165, and at the same time, the screw shaft driving mechanism 82, the belt driving mechanism 84, the slide plate driving mechanism 85, the mechanical chassis driving mechanism 86, and the lock arm driving. Each operation of the mechanism 87 is controlled.
[0040]
<Operation description>
The operation when the disk 101 having a diameter of 12 cm is inserted into the apparatus 1 in the above configuration will be described. As shown in FIG. 1, FIG. 7 and FIG. 13, in the loading standby state in which the disc can be inserted, the distance between the first drive roller 41 arranged closest to the front panel 2 and the guide member 50 is 8 cm in diameter. It is set to be slightly smaller than the diameter of the disc. Further, in this standby state, as shown in FIG. 10, the disk holder 11 is aligned with the disk transfer plane.
[0041]
When the disk 101 is inserted from an opening (not shown) formed in the front panel 2, the support plate 48 that supports the drive roller 41 by the disk 101 resists the urging force as shown in FIG. The gear portion 35 of the support plate 48 rotates the rotary shaft 37 of the potentiometer 49. Along with this, the resistance value of the potentiometer 49 changes, whereby insertion of the disk 101 into the apparatus 1 is detected.
[0042]
When the insertion of the disk 101 is detected, the driving pulley 175 is rotationally driven clockwise by the belt driving mechanism 84, whereby the pulleys 178, 179, 181, 174, 183 connected by the driving belt 76 are respectively rotated clockwise. Pulleys 177, 180, 182, and 176 are rotated counterclockwise, respectively. Therefore, the drive roller 41 meshed with the pulley 181 is driven to rotate counterclockwise.
[0043]
On the other hand, when the pulley 174 is rotated in the clockwise direction, the pulleys 171, 172, 29, 28, 27 connected by the drive belt 26 are rotated in the clockwise direction, and the drive rollers 44, 43, 42, and the pulley 173 are counterclockwise. To be rotated. Accordingly, the drive rollers 41 to 44 are each driven to rotate counterclockwise, so that the disk 101 sandwiched between the guide members 50 is transferred in the direction of arrow F.
[0044]
Further, based on a command from the microcomputer 166, the slide plate driving mechanism 85 shown in FIG. 13 rotates the pinion gear 118 counterclockwise. As a result, the slide plate 111 moves in the direction of arrow D and the slide plate 121 moves in the direction of arrow E, respectively.
[0045]
Since the potentiometer 49 for detecting the insertion of the disk 101 detects the displacement of the drive roller 41, the operator deviates the disk to the right and does not contact the drive roller 41. When inserted into the slide plate drive mechanism 85, the slide plate drive mechanism 85 does not operate. In order to solve this problem, a detection switch or the like for detecting the contact of the disk 101 may be provided on the guide member 50 side, and the slide plate drive mechanism 85 may be controlled in cooperation with the two detection elements.
[0046]
As the slide plates 111 and 121 are moved away from each other by the slide plate driving mechanism 85 as they are, the roller support plate 48 rotated clockwise by the disk 101 is rotated counterclockwise. When the change in the reverse direction is detected by the potentiometer 49, the slide plate drive mechanism 85 controls the movement of the slide plates 111 and 121 so as to be close to the disk 101 by rotating the pinion gear 118 clockwise.
[0047]
With this control, as the disk 101 is inserted into the apparatus 1, the disk drive mechanism 40 and the guide member 50 are controlled to move away from each other by the drive force of the slide plate drive mechanism 85. Therefore, the disc drive mechanism 40 and the guide member 50 are not spread out by the disc insertion force by the operator, but the interval between the disc drive mechanism 40 and the guide member 50 is increased in conjunction with the insertion of the disc into the apparatus 1. Because it is controlled, disk loading is possible with a light insertion force.
[0048]
When the disk 101 is further inserted, the disk 101 is completely inserted between the disk drive mechanism 40 and the guide member 50, and the position of the slide plates 111 and 112 does not change. By detecting the position of the slide plate 121 at this time with the slide volume 135, the microcomputer 166 recognizes that the inserted disk 101 is a 12 cm disk. Thereafter, the pinion gear 118 is rotated clockwise by the slide plate driving mechanism 85, so that the disk 101 is stably clamped between the disk driving mechanism 40 and the guide member 50 with a predetermined clamping force during loading of the disk. The disk 101 is transferred in the direction of arrow F.
[0049]
During this loading, the disk 101 moves over the driving rollers 42 and 43 and moves to the reproduction position. At this time, the slide plates 111 and 121 hold the position and the roller arm 45 that supports the driving rollers 42 and 43. , 46 rotate counterclockwise against the biasing force. Along with the rotation of the roller arms 45 and 46, the tension pulley 173 rotates clockwise around the rotation axis of the pulley 174, thereby holding the tension of the timing belt 26 constant.
[0050]
As shown in FIG. 7, the disk drive mechanism 40 and the guide member 50 are movably supported by the main chassis 4. Therefore, when inserting the disk 101, the operator can obtain a rigid insertion feeling without being affected by the damper 91.
[0051]
The rotation of the drive rollers 41 to 44 moves the disk 101 in the direction of arrow F, which is the reproduction position direction, and the actuators of the detection switches 56 and 57 are pressed by the peripheral edge of the disk 101 so that both the detection switches 56 and 57 are moved. The disc 101 is transferred to the reproduction position which is the on position. At this reproduction position, the disc 101 is not in contact with the disc holder 11 aligned at the same height.
[0052]
Subsequently, the mechanical chassis 63 and the clamper 71 are moved closer to each other by the mechanical chassis drive mechanism 86 so that the disk 101 is clamped between the turntable 61 and the clamper 71.
[0053]
Thereafter, the disk drive mechanism 40 and the guide member 50 are moved in the directions of arrows D and E by the slide plate drive mechanism 85, respectively, thereby separating them from the disk 101. Thereafter, the disk 101 is rotationally driven at a required number of revolutions, and this reproduction state is shown in FIG. 4 and FIG. 9 which is a front view thereof. Note that this reproduction position is the same height as the transfer plane of the disk 101.
[0054]
As shown in FIGS. 7 to 9, the clamp arm 72 is supported by a mechanical chassis 63 supported on a damper 91. On the other hand, the guide member 50 is supported on the main chassis 4. Accordingly, in the reproduction state shown in FIG. 9, the clamp arm 72 is moved by vibration, but a sufficient distance from the guide member 50 is provided by the bent portion 74 formed on the clamp arm 72. Therefore, the clamp arm 72 ahead of the bent portion 74 can be brought close to the disk 101, which can contribute to downsizing of the apparatus in the height direction.
[0055]
The operation of storing the disc 101 in the disc holder 11 and storing a different disc in the fourth disc holder 14 after the reproduction of the disc 101 will be described below. After the reproduction of the disk 101, the disk 101 is moved between the drive rollers 43 and 44 and the guide member 50 by moving the disk drive mechanism 40 and the guide member 50 in the arrow E direction and the D direction by the slide plate drive mechanism 85, respectively. Then, the mechanical chassis 63 and the clamper 71 are moved away from the disk 101 by the mechanical chassis drive mechanism 86 to release the clamped state of the disk 101.
[0056]
Subsequently, the drive rollers 41 to 44 are rotated counterclockwise by the roller drive mechanism 84 and the disc 101 is moved in the direction of arrow F, whereby the disc 101 is inserted into the disc holder 11. After that, the disk drive mechanism 40 and the guide member 50 are moved away from each other by the slide plate drive mechanism 85, and the slide plate 111 is moved to a position where the drive roller 44 and the guide member 50 are separated from the disk 101 as shown in FIGS. , 121 are moved.
[0057]
After the disc 101 is stored in the disc holder 11, the spur gear 157 is driven to rotate clockwise by the lock arm drive mechanism 87 shown in FIG. 15, so that the disc lock nut 153 engaged with the camshaft 156 becomes an arrow. Move in direction B. Accordingly, the disk lock arm 159 is rotated 90 degrees counterclockwise in FIG. 15 and FIG. 20 about the shaft 158, and the tip end portion engages with the recess 144 formed in the upper lock bracket 141. Close the disc transfer plane. As a result, the disc lock arm 159 is inserted into the center hole of the disc 101, thereby preventing the disc holder 11 from popping out. This state is shown in FIG. 19 and FIG.
[0058]
The rotation direction of the disk lock arm 159 is a direction in which the disk 101 is moved in the direction of the disk holder 11. Therefore, when the disk drive mechanism 40 is not sufficient to transfer the disk 101 to the disk holder 11, the disk lock arm 159 moves the disk 101 by pressing the peripheral edge of the center hole of the disk 101, so that the disk 101 is surely moved. The disc holder 11 can be stored.
[0059]
Further, the mechanical chassis 63 is translated in the direction of the arrow G along the guide groove 92 by the mechanical chassis drive mechanism 86, and as shown in FIG. 6, the mechanical chassis 63 is moved to a retracted position where it does not overlap the disk 101 held by the disk holder 11. Come.
[0060]
Subsequently, in order to select the disk holder 14, the screw shaft 30 is rotated clockwise by the screw shaft drive mechanism 82, and the screw shaft 30 is rotationally driven to a height at which the disk holder 14 is aligned with the disk moving plane as shown in FIG. To do.
[0061]
Thereafter, the slide plates 111 and 121 are moved by the slide plate drive mechanism 85, and as shown in FIG. 1, the disk drive mechanism 40 and the guide member 50 are moved to a standby position where the disk can be inserted.
[0062]
When loading an 8 cm disc, the slide plate drive mechanism 85 slides the slide roller at the loading standby position shown in FIGS. 1 and 7 by the clockwise rotation of the drive roller 41 accompanying the insertion of the 8 cm disc. The movement of the plates 111 and 121 is controlled. Thereafter, the slide volume 135 maintains a constant state for a predetermined time in a state where the 8 cm disc is completely held between the disc drive mechanism 40 and the guide member 50.
[0063]
It is assumed that the insertion of the 8 cm disk is detected with no change in the slide volume 135, and after the detection, the slide plates 111 and 121 are urged in the direction of holding the 8 cm disk by the slide plate driving mechanism 85 to detect the same as the 12 cm disk. When the switches 56 and 57 are turned on, the loading of the 8 cm disk by the drive rollers 41 to 44 is stopped.
[0064]
In this embodiment, since the disk holders 11 to 16 cannot store an 8 cm disk, when the loading of the 8 cm disk is detected, the transfer from the playback position of the 8 cm disk to the disk storage position is prohibited.
[0065]
In the above-described embodiment, a plurality of drive rollers 41 to 44 arranged in the disk transfer direction as a disk transfer mechanism and the drive rollers 41 to 44 are arranged opposite to each other, and the disk is transferred by the plurality of drive rollers. However, it is also possible to provide a pair of drive rollers 41 to 44 and sandwich and transfer the disk by these drive rollers.
[0066]
In the above-described embodiment, the recording medium to be transferred is a disk. However, it is needless to say that the present invention can be applied to a cartridge type recording medium transfer apparatus in which a disk is housed in a shell.
[0067]
Further, the member for driving the driving roller is not limited to the timing belt, and may be a pulley arranged in the transfer plane of the recording medium.
[0068]
【The invention's effect】
As described above, according to the apparatus of the present invention, when the recording medium is transferred by the driving roller, the driving member for rotationally driving the driving roller is arranged on the same plane as the transfer plane of the recording medium. Miniaturization in the direction can be achieved.
[Brief description of the drawings]
FIG. 1 is a plan view of a main part of a disc reproducing apparatus 1 in a state where a disc can be loaded.
FIG. 2 is a plan view of a main part of the disc reproducing apparatus 1 in a state in which the disc is inserted.
FIG. 3 is a plan view of a main part of the disc playback apparatus 1 in a state where the disc is brought to a playback position.
FIG. 4 is a plan view of a main part of the disc playback apparatus 1 in a disc playback state.
FIG. 5 is a plan view of the main part of the disc reproducing apparatus 1 in a state where the disc is brought to the storage position.
FIG. 6 is a plan view of the main part of the disc playback apparatus 1 in a disc selectable state.
FIG. 7 is a front view corresponding to FIG. 1;
FIG. 8 is a front view corresponding to FIG. 3;
FIG. 9 is a front view corresponding to FIG. 4;
FIG. 10 is a side view of the screw shaft 30 in a state where the disc holder 11 is selected.
FIG. 11 is a side view of the screw shaft 30 in a state where the disc holder 14 is selected.
FIG. 12 is a side view of the screw shaft 30 in a state where the disc holder 16 is selected.
FIG. 13 is a plan view of a principal part for explaining the configuration of slide plates 111 and 121;
FIG. 14 is a plan view of a main part for explaining the configuration of slide plates 111 and 121;
FIG. 15 is a side view of the disk lock mechanism 140 in an unlocked state.
16 is a front view corresponding to FIG.
17 is a cross-sectional view taken along line HH in FIG.
18 is a sectional view taken along line JJ in FIG.
FIG. 19 is a side view of the disk lock mechanism 140 in a locked state.
FIG. 20 is a perspective view of the disk lock mechanism 140 in the unlocked state.
FIG. 21 is a perspective view of the disk lock mechanism 140 in a locked state.
22 is a circuit diagram of a main part of the device 1. FIG.
FIG. 23 is a cross-sectional view of the disc holder.
24 is a sectional view of the drive pulley 42. FIG.
[Explanation of symbols]
1 Disc player
3 Base chassis
4 Main chassis
11-16 Disc holder
20 plates
21 Connecting bar
26 First timing belt
30 Screw shaft
33 Cam groove
40 Disk drive mechanism
41-44 Driving roller
45-47 Roller arm
48 Roller support plate
50 Guide members
56 Detection switch
57 Detection switch
61 Turntable
63 Mecha Chassis
66 Optical pickup
71 Clamper
72 Clamp arm
76 Second timing belt
82 Screw shaft drive mechanism
84 Belt drive mechanism
85 Slide plate drive mechanism
86 Mechanical chassis drive mechanism
87 Lock arm drive mechanism
91 Damper
101 disks
111 slide plate
121 slide plate
135 Detection switch
136 Detection switch
137 Detection switch
138 Detection switch
140 Disc lock mechanism
141 Upper lock bracket
151 Lower lock bracket
159 Disc lock arm
166 Microcomputer
175 Drive pulley

Claims (2)

A plurality of drive pulleys arranged along a transfer path of the recording medium to transfer the recording medium in contact with the periphery of the recording medium;
A guide member that is disposed to face the plurality of drive pulleys and sandwiches the periphery of the recording medium with the plurality of drive pulleys;
And a drive member that is disposed in substantially the same plane as a transfer plane of the recording medium that is transferred by the plurality of drive pulleys, and that rotationally drives the plurality of drive pulleys by contacting each of the plurality of drive pulleys. A disk transfer device characterized by the above. The disk transfer device according to claim 1, wherein the driving member is an endless belt.

Images