JP3564849B2 - Disc loading device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a disk loading device capable of storing a plurality of disks and sequentially and selectively reproducing the stored disks, the disk loading device having disk holding means for holding the stored disks. Things.
[0002]
[Prior art]
2. Description of the Related Art In recent years, various types of disk loading devices have been developed which can store a plurality of disks and sequentially or selectively reproduce the stored disks. A conventional disk loading apparatus mounts a plurality of disks on the same plane of a single rotary tray, and rotates the rotary tray to transfer a desired disk to a playback position. There has been a fixed stock system in which a disc is stored at a predetermined position and a selected disc is transferred to a playback position each time playback is performed. As the former rotary tray system, for example, there is a disk loading device disclosed in U.S. Pat. No. 5,386,403, and this disk loading device places five disks on a single rotary tray with its axis as the center. The devices are mounted on the same circumference.
[0003]
As the latter fixed stocker system, for example, there has been a vehicle-mounted disk loading device disclosed in US Pat. No. 5,119,354. This disk loading device includes a fixed stocker for stacking and storing a plurality of disks, and a disk drive unit movable in the stacking direction of the stored disks. In this disk loading device, a disk drive unit moves to a storage position of a disk, removes a selected disk from a fixed stocker, and transfers the removed disk to a playback position for playback.
[0004]
Among such conventional disk loading devices, the rotary tray method has a configuration in which a plurality of disks are placed on one rotary tray, so a large rotary tray is required, and the device becomes large. Was.
[0005]
Further, in the fixed stocker system, since a predetermined disk is stored in a predetermined position in a plurality of trays, in order to move each stored disk to the playback position, A different moving operation is required for each disk, and there is a problem that the mechanism becomes complicated and the device becomes large.
[0006]
Therefore, the present inventor has previously proposed Japanese Patent Application No. 7-299074 in order to solve the above problems. This includes a plurality of trays on which disks are mounted, a frame having storage means for stacking and supporting the trays, a reproducing means for reproducing the disks mounted on the trays at a reproducing position, and Tray discharging means for discharging to the outside of the frame, and moving the tray at the lowermost position of the tray stacked and supported by the storage means inside the frame to the reproducing means, wherein the tray on the reproducing means Are sequentially returned to the tray at the uppermost position of the stacked trays of the storage means, and a tray driving means configured to circulate the stacked trays is provided. It is possible to obtain a small disk loading device capable of sequentially and selectively playing the disks on the tray. .
[0007]
[Problems to be solved by the invention]
However, in the disk loading device proposed by the present inventor, the disk on the tray on the storage side is displaced from a predetermined position due to factors such as external vibration or shock, and the disk enters the disk loading device. There was a problem that would be.
[0008]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a disk loading device which has a simple configuration and holds a disk on a storage side tray so as not to deviate from a predetermined position.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a disc loading device according to the present invention comprises a tray on which discs are placed, storage means for stacking and supporting a plurality of the trays, and playing a disc placed on the tray at a playback position. Moving the tray at the lowest position of the trays stacked and supported by the storage means to the reproduction means, and moving the trays from the reproduction position to the top of the stacked trays of the storage means. A tray driving unit configured to sequentially return the tray to a position and circulate the stacked trays, and a disk holding unit configured to hold a disk, wherein the tray is stored in the storage unit. By inserting the arm member into the hole in the center of the disc, the disc can be easily prevented from shifting from a predetermined position on the tray. It is intended to act as possible.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention provides a tray on which a disc is placed, a storage means for stacking and supporting a plurality of the trays, and a reproducing means for reproducing the disc placed on the tray at a reproducing position. Moving the tray at the lowest position of the trays stacked and supported by the storage means to the reproducing means, and moving the trays from the reproduction position to the uppermost position of the stacked trays of the storage means A tray driving unit configured to sequentially return the trays to the top and circulate the stacked trays, and provided in an upper portion of the storage unit, and inserted into a central hole of a disc on the tray stored in the storage unit. and a disk holding means consisting of the arm member for pressing and holding the disk, the arm member may be pressed disc on the tray by the biasing force of the spring Provided to be rotatable in the directions, which tray the uppermost position during the circulating operation of the tray is capable of holding constituting a disk on the tray be in a state of lowered one step by said tray driving means The position of the disk is regulated by the arm member when the arm member enters the center hole of the disk at a predetermined position on the tray on the storage side, so that the disk is not displaced from the tray even when subjected to external vibration or shock. both the can be prevented, has the effect called in the structure small pressing force to simplify the disc holding means, moreover can retain the disk even during the circulation operation.
[0013]
According to a second aspect of the present invention, in addition to the configuration described in the first aspect, a rotatable roller is provided at the tip of the arm member.
[0014]
With this configuration, the contact resistance between the disk moving to the storage side and the arm member is reduced, and the contact surface with the disk can be prevented from being damaged.
[0015]
According to a third aspect of the present invention, in the configuration of the first or second aspect , the arm member of the disk holding means is at least the uppermost tray stored in the storage means and the tray at the second position from the uppermost tray. Is inserted into a central hole of a disk placed on the disk.
[0016]
With this configuration, a disk on the uppermost tray that is not held from above can be held. That is, when the trays are circulated, the uppermost tray is lowered when the lowermost tray is moved to the playing side, so that all the trays in the storage means are temporarily lowered by one tray. In this state, the disk can be held.
[0017]
Hereinafter, an embodiment of a disc loading apparatus according to the present invention will be described in detail with reference to FIGS.
[0018]
(Embodiment 1)
FIG. 1 is a side sectional view showing a configuration of a disk loading device according to Embodiment 1 of the present invention, and FIG. 2 is a side sectional view for explaining the operation of the same. In FIG. 1, a disc loading mechanism is housed inside a base frame 4 of a disc loading device and a cover frame 3 covering the base frame 4 and a plurality of trays 1a, five in the figure, are shown below the cover frame 3. A tray storage unit 5 serving as storage means for storing 1e is provided. Discs 2a to 2e each having a central hole are placed on the trays 1a to 1e, respectively. The disc loading mechanism further includes a tray ejecting unit 13 for ejecting the tray to the right of the drawing to the outside of the frame, a disc reproducing unit 11, and a tray driving unit (not shown). Are provided with locking members 12a and 12b operated by a power source 12c. A holder 9 is fixed to the upper part of the cover frame 3. The holder 9 is rotatably held on the arm shaft 6 a as a rotation axis from the holder 9, and the arm 6 urged downward is a tray inside the tray storage unit 5. The discs 2e and 2d placed on 1e and 1d are inserted toward the center holes.
[0019]
FIG. 3 is an exploded perspective view for explaining the disk holding means provided in the disk loading device. 3, the claw 9a of the holder 9 is inserted into the hole 3a of the cover frame 3, and the holder 9 is fixed to the upper portion of the cover frame 3. An arm shaft 6a is provided at one end of the arm 6 serving as a holding means. The arm shaft 6a is rotatably held by a hole 9b of the holder 9, and one end of a spring 10 provided on the arm shaft 6a of the arm 6 is connected to the arm. The arm 6 is urged in the direction indicated by the arrow A by hooking the other end of the hook 6 to the holder 6 at the other end. As shown in FIG. 4, a rib 6 d is provided on the opposite side of the hook 6 c of the arm 6 as a stopper in the rotation direction of the arm 6, and the rib 6 d contacts the stopper claw 9 c provided on the holder 9 to position the arm 6. I have decided. A claw 6b is provided at the other end of the arm 6, and holds the roller shaft 7 in a rotatable state. A roller 8 is provided at the center of the roller shaft 7. FIG. 5 is a cross-sectional view showing a mounting portion between the arm 6 and the roller shaft 7. The roller shaft 7 is held between the hook portion 6e of the claw portion 6b and the contact portion 6f. The tip of the arm 6 is directed toward the tray storage unit 5 from the opening 3b at the top of the cover frame 3.
[0020]
The operation of the disk loading device of the present embodiment configured as described above will be described below. In FIG. 1, the tray driving unit (not shown) moves the lowermost tray 1 a of the five trays 1 stored in the tray storage unit 5 to the reproduction position with the disc 2 a mounted thereon, and mounts the tray 1 on the reproduction unit 11. Is shown. Thereafter, when the locking members 12a and 12b are moved by the power source 12c to release the locking of the tray 1b, the tray 1b is lowered to the position where the tray 1a was located, and the trays 1b to 1e remain with the discs 2b to 2e mounted thereon. , Each of which is lowered by one tray. When the reproduction of the disk 2a is completed or when it is not necessary to reproduce the disk 2a, the tray driving unit (not shown) moves the reproducing unit 11 upward with the tray 1a with the disk 2a mounted thereon as shown in FIG. Then, the tray 1a is operated to be returned to the uppermost stage of the tray storage unit 5 while the disc 2a is mounted. When playing an arbitrary one of the plurality of trays 1, for example, a disc 2d placed on the tray 1d, this circulating operation is repeated until the tray 1d comes to the reproducing position of the reproducing means 11.
[0021]
FIG. 6 shows a state where the tray 1 a is being returned to the uppermost stage of the tray storage unit 5. In the state of FIG. 6, the arm 6 is at a position where the rib 6d of the arm 6 shown in FIG. 4 and the stopper claw 9c of the holder 9 are in contact with each other. In this state, the arm 6 is inserted from now on to the uppermost position. And the trays 2a and 2e placed on the tray 1e serving as the second tray from the top. Therefore, the disk 2e on the tray 1e, which is going to be the second from the top, can be easily held so as not to be displaced from the tray 1e. This is because when the lowermost tray is moved to the playing side for reproduction, all the trays on the storage side are once lowered by one tray, so the height of the tray 1e, which was the uppermost row, is also lowered by one sheet. This is because the disk 2e can be held at any time.
[0022]
Thereafter, as shown in FIG. 7, when the tray 1a moves in the direction of arrow A, the tip of the tray 1a contacts the roller 8 held by the arm 6 and then the tip of the disc 2a contacts the roller 6 held by the arm 6. It rotates to the center in the direction of arrow c. Then, the roller 8 rolls on the upper surface of the disk 2. Here, the pressing force of the roller 8 against the disk 2a by the spring 10 is too high, since the disk 2a is displaced from the fixed position of the tray 1a.
[0023]
When the tray 1a completes returning the tray 1a to the top of the tray storage unit 5 as shown in FIG. 8, the arm 6 is inserted into the center hole of the disk 2a placed on the tray 1a by the return force of the spring 10. Enters. Therefore, the disk 2a of the tray storage unit 5 cannot be moved because the arm 6 is obstructed by the arm 6, so that the disk 2a does not shift from the tray 1a.
[0024]
As described above, according to the present embodiment, by providing the arm member such as the rotatable arm 6 above the cover frame 3, it is easy to hold the disk 2 placed on the tray 1 of the tray storage unit 5. Can be done.
[0025]
As shown in FIG. 9, it goes without saying that the same effect can be obtained with a small-diameter disk 2f placed on the tray 1.
[0026]
Although the arm 6 has been described as rotating toward the disk and entering the center hole of the disk 2, the arm may enter the center hole of the disk 2 in a direction perpendicular to the disk surface. In this case, a portion where the tray 1 is inserted into the tray storage section 5 may be provided with a taper, and the arm may be pushed up by the taper.
[0027]
Although the roller 8 has been described as being rotatable by the roller shaft 7, the same effect can be obtained even if the arm 6 does not rotate if the arm 6 is made of a material having a small friction. They may be integrated.
[0028]
Further, in the first embodiment, the disk holding of the tray storage unit 5 is from the uppermost stage to the second stage, but the position of the shaft 6a of the arm 6 is further moved to the left in the figure, and By increasing the length, the arm 6 further reaches the lower portion, so that the tray storage unit 5 can hold the disk at the third stage or more from the uppermost stage.
[0029]
【The invention's effect】
As described above, the disc loading device of the present invention includes a tray on which a disc is placed, storage means for stacking and supporting a plurality of trays, and reproducing means for reproducing the disc placed on the tray at a reproducing position, The tray at the lowermost position of the trays stacked and supported by the storage means is moved to the reproducing means, and this tray is sequentially returned from the reproduction position to the tray at the uppermost position of the stacked trays of the storage means, and is stacked. A tray driving means configured to circulate the tray, and an arm member provided at an upper portion of the storage means and inserted into a central hole of a disk on the tray stored in the storage means and pressing and holding the disk. and a disc holding means composed of the arm member is set to be rotatable in the direction of pressing the disc on the tray by the biasing force of the spring It is and, by the tray during the circulation operation of the tray by the driving means tray uppermost position is capable of holding constituting a disk on the tray be in a state of lowered one step, top with a simple structure The disk mounted on the tray can be prevented from being displaced from the tray due to external vibration or shock , the structure of the disk holding means is simplified, the disk can be held with a small pressing force, and the disk can be held even during the circulation operation. It is .
[0030]
Further, the arm member of the disk holding means is configured to be inserted at least into the center hole of the disk placed on the tray at the uppermost position and the second position from the uppermost position stored in the storage means, When the lowermost tray is moved from the storage means to the reproduction means, the stacked trays are lowered once by one tray in the storage means, and the height of the uppermost tray is also lowered. Has an advantageous effect that the disc can be easily prevented from being displaced from the predetermined position.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing a configuration of a disk loading device according to a first embodiment of the present invention; FIG. 2 is a side sectional view for explaining a circulation operation of the tray; FIG. FIG. 4 is an exploded perspective view for explaining the disk holding means. FIG. 4 is a side view showing a state in which the arm 6 of the disk holding means is locked to the holder 9. FIG. FIG. 6 is a sectional side view showing a disk holding state of the disk holding means during the return of the tray. FIG. 7 is a side sectional view showing a state where the disk holding means is rotated by the tray being returned. FIG. 9 is a side sectional view showing the disk holding state of the disk holding means when the tray is completely returned. FIG. 9 is a side sectional view showing the disk holding state of the disk holding means with respect to the disk having the same diameter. Description]
DESCRIPTION OF SYMBOLS 1 Tray 2 Disk 5 Tray storage part 6 Arm 6a Arm shaft 6b Claw part 6c Hook part 6d Rib 7 Roller shaft 8 Roller 9 Holder 10 Spring 11 Reproduction means

Claims (3)

A tray on which the disc is placed,
Storage means for stacking and supporting a plurality of the trays,
Playback means for playing the disc placed on the tray at a playback position,
The lowermost tray of the trays stacked and supported by the storage unit is moved to the reproducing unit, and the tray is moved from the reproduction position to the uppermost tray of the stacked trays of the storage unit. Tray driving means having a configuration of sequentially returning and circulating the stacked trays,
A disk holding means provided at an upper portion of the storage means and comprising an arm member which is inserted into a center hole of the disk on the tray stored in the storage means and presses and holds the disk ;
The arm member is provided so as to be rotatable in a direction in which the disc on the tray is pressed by a biasing force of a spring, and the uppermost tray is lowered by one step when the tray is circulated by the tray driving means. A disk loading device configured to be able to hold a disk on the tray even if the disk is loaded. 2. The disk loading device according to claim 1 , wherein the disk holding means has a rotatable roller at a tip of the arm member. The arm member of the disk holding means is inserted into at least a central hole of the disk placed on the uppermost tray and the tray at the second position from the uppermost tray stored in the storage means. Or the disk loading device according to 2.

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