JPH0138778Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The invention consists of a recording disc storage unit that holds recording discs in a vertical position, and a recording disc playback device that is disposed below the storage unit and that is supplied with and plays back recording discs. , a disk support member is provided at the tip, and during playback, the disk support member supports the lower edge of the recording disk and moves it downward to feed it to the playback machine, and when playback is finished, the recording disk is moved up and returned to the storage unit for transportation of the recording disk. The present invention relates to an automatic recording disk reproducing device having an arm.

Prior Art The present applicant previously filed Utility Application No. 129491/1983
-40062 Publication), the name of the invention is ``Recording Disk Automatic Reproducing Device'', which holds a large number of recording disks (hereinafter referred to as disks) in a vertical position.Specified disks are transferred from the recording disk storage section to the disk and the disk at the tip of the transport arm. The disk is supported by the catcher and guided to the predetermined clamping position of the recording disc player by the movement of the transport arm. After playback is complete, the disc is supported by the disc catcher again and the transport arm is rotated in the upward direction and returned to its original storage position. We proposed a device configured so that it could be returned to the department.

Problems to be Solved by the Invention However, in the automatic recording disc reproducing device having the above configuration, the bottom plate of the disc catcher is fitted into the inverted T-shaped groove provided at the tip of the transport arm, and when the transport arm is moved up and down, When the disk is engaged and supported in the disk receiving recess of the disk catcher, which is guided on both sides by guide members, and is returned from the inside of the playback machine to the storage section with the upward movement of the transport arm, the positioning plate is made to protrude from inside the playback machine. Although the position of the disc and the position of the storage part were matched by fitting it into the storage part, there may be cases where a slight deviation occurs between the position of the disc and the position of the storage part due to parts precision and assembly accuracy. be. In this case, in the conventional device, the disk is returned with the disk tilted toward the storage section as the transport arm rises. There was a problem in that the signal surface of the disk came into sliding contact with the lower edge of the partition blade, which was formed to protrude like a tooth, and if this was repeated, the surface of the signal surface would be rubbed against the lower edge of the partition blade and be damaged.

Therefore, an object of the present invention is to provide an automatic recording disk reproducing device that solves the above-mentioned problems.

Means and Effects for Solving the Problems The present invention is provided in a recording disc playback machine disposed below the recording disc storage section, moves downward to feed the recording disc into the playback machine, and moves up when playback is finished. A disk support member having a recording disk support portion formed at an angle so that the label surface side of the recording disk is lower in the thickness direction of the recording disk is installed at the tip of the recording disk transport arm that returns the recording disk to the storage unit. Provided,
When the recording disk is tilted and returned to the storage unit, the recording disk is guided toward the label side to alleviate rubbing on the signal side.

Embodiment FIGS. 1 and 2 show a compact disc automatic selection and playback device 1, which is an embodiment of the recording disk automatic selection and playback device according to the present invention. Apparatus 1 is roughly:
A disk storage rack 4 is installed horizontally on the top of the frame 2 and stores a plurality of compact disks 3 (hereinafter referred to as disks);
It consists of a playback mechanism section 5 which has a built-in disc playback device and is supported at a position directly below the disk storage rack 4 so as to be movable along the storage rack 4.

The disk storage rack 4 has a roughly rectangular frame shape, and both walls along the longitudinal direction are provided with a large number of partition wings 1.
0 is connected by a side plate 11 and has a comb-like structure. A pair of adjacent partition wings 10 facing each other work together to form a flat disk storage section 12, and the storage rack 4 has a structure in which a large number, for example, 130 disk storage sections 12 are closely aligned in the longitudinal direction. It's summery. 130 disk storage compartment 12
are numbered in order. Also, one slit 13 is formed corresponding to each disk storage section 12. Furthermore, a disk stopper 14 is provided for each disk storage section 12. The disk stopper 14 is supported by a shaft 15 and arranged between adjacent partition wings 10, and is biased counterclockwise by a spring 16 and normally rotates in the same direction. protrudes inward. Further, both the ceiling and the bottom of the storage rack 4 have openings 17 and 18.

The disk 3 is inserted into each storage section 12 through the upper opening 17 in a vertical state with the playback surface aligned in one direction. The inserted disk 3 has an outer peripheral edge 3a
The lateral parts A ₁ and A ₂ are locked by the side plates 11 to restrict rolling, and the lower part A ₃ is locked by the stopper 14 to restrict downward movement (fall). The discs are surely separated from the adjacent disks 3 on both sides by partition wings 10, and their inclinations are restricted so that they do not contact the adjacent disks on both sides, and are arranged in a vertical posture facing each other and stored in the storage rack 4. In other words, when each disk 3 is released from the stopper 14, it descends under its own weight, slips out of the storage section 12, passes through the bottom opening 18, and enters the storage rack 4 in a state where it can be removed from the storage rack 4. It is stored.

The regeneration mechanism section 5 is supported by a pair of guide rods 20 and 21 which are horizontally suspended on the frame 2 on both sides, and when a pinion 23 rotated by a motor 22 rolls on a rack 24, the guide rods 20, 21 and moves in the directions of arrows X ₁ and X ₂ .

As shown in FIG. 3, the playback mechanism section 5 includes:
Inside, there is a disk playback machine 25, a disk playback machine shift mechanism 26 that shifts the disk playback machine, a disk transport mechanism 27 that simply supports the disk and transports it between the rack 4 and the playback mechanism section 5, and a disk that is discharged from the playback mechanism section. A disk guide mechanism 28 that guides the disk to be played, an alignment mechanism 29 that aligns the disk guide mechanism with a predetermined disk storage section 12 of the storage rack, a disk clamp mechanism (not shown) that clamps the disk during playback, and a disk storage mechanism It is equipped with a disk separating mechanism 31, etc., which separates the disks on both sides of the storage chamber into which the disks are returned when the disks are returned to the rack, and each mechanism is connected by the rotation of one cam gear 35 shown in FIGS. 5A to 5C. It is configured to operate as follows.
The cam gear 35 is mounted on the shaft 37 at a substantially central position inside the outer panel 36 of the regeneration mechanism section 5, with the cam surface 35A shown in FIG. 5C facing outward and the cam surface 35B shown in FIG. It is supported and rotated by a motor 38.

In the playback mechanism section 5, a pair of guide panels 39 and 40 as guide members are disposed facing each other and sandwiching the disk receiving/ejecting position P (shown at the bottom in FIG. 3). Information panel 39, 4
The disc enters the flat guide space 41 between 0 and 1, is guided, rotates at a position corresponding to the disc player 25, and is played.

The disc playback device 25 has an arrow inside the playback mechanism section 5.
It is supported so as to be movable in the X ₁ and X ₂ directions, and in the initial state, as shown in FIG. 3, it moves in the X ₂ direction and is away from the position P.

As shown in FIG. 1, the disc player shift mechanism 26 includes a shift arm whose upper end is pivotally supported by a part of the outer panel 36 and whose lower end is connected to a U-shaped support base 42 that supports the disc player 25. 4
3 and a cam 35A- ₁ on the cam surface 35A side that acts on the roller 44 in the middle of the shift arm 43, and operates after the disk 3 enters the playback mechanism section 5.

As shown in FIGS. 1 and 3, the disk transport mechanism 27 has a flat guide space 41 centered around a shaft 45.
a generally arc-shaped disk carrying arm 46 that rotates between the position shown by the solid line in FIG. 1 and the position shown by the two-dot chain line;
It has a rack 48 at one end that meshes with the pinion 47, and a boat-shaped cam follower 49 (Figs. 1 and 5C).
(shown in FIG. 1) and a lever 50 that moves in the directions of arrows _Y1 and _Y2 guided by a cam groove 35A- ₂ of a cam surface 35A. In the initial state, the lever 50 is moving in _{the two} directions of arrow Y, as shown in FIG.
Arm 46 is rotating counterclockwise.

As shown in FIGS. 1 and 6, the tip 46a of the arm 46 has a bifurcated shape, and between the two prongs, a tapered roller 61 serving as a disk support, which is the main part of the present invention, is rotated by a shaft 46b. It is supported freely. The roller 61 has a tapered surface 61a that is inclined so that the label surface 3b side of the upper disk 3 is lower in the thickness direction of the disk 3.

As shown in FIGS. 3 and 4, the disk guide mechanism 28 includes a pair of guide plates 51 and 52 arranged such that respective inclined guide portions 51a and 52a face each other.
It becomes more. The guide members 51 and 52 are urged toward each other by springs 53 and 54 on both sides, and the inclined guide portions 51a and 52a are butted against each other with alignment plates 55 and 56 sandwiched at both ends.
In this state, the inclined guide parts 51a and 52a have an inverted V-shape in side view and are in a state where they can guide the disk discharged from below to the upper side. An elongated opening 57 having a dimension slightly larger than the thickness is formed. The first guide plate 51 is guided by the cam groove 35B- ₁ of the cam surface 35B and rotated as shown in _FIG . It can be displaced to Information board 5
1 is displaced in this way, the levers 59 on both sides,
A further guide plate 52 is displaced via 60 in the direction of arrow _X2 . That is, both guide plates 51 and 52 are displaced in the direction away from each other, the opening width is increased, and the disc is in a state where it can easily enter into the playback mechanism section 5. Further, both guide plates 51 and 52 are attached so that they can be displaced somewhat in plane without changing the opening width, and are displaced according to the positions of alignment plates 55 and 56, as will be described later.

The alignment mechanism 29 includes alignment plates 55 and 56 provided on both ends of the opening 57 so as to be displaceable in the directions of arrows _Z1 and _Z2 , and a cam groove 35A- ₃ of the cam surface 35A.
The rotating arms 62, 63 are guided by the rotating arms 62, 63, and the connecting arms 64, 65 connect the rotating arms 62, 63 to the alignment plates 55, 56. In the initial state, the alignment plates 55 and 56 are displaced in the _two directions of arrow Z and inserted into the regeneration mechanism section 5, and the cam gear 3
5 rotates, they simultaneously move in the direction of arrow _Z1 via the rotating arms 62, 63 and connecting arms 64, 65, protrude from the playback mechanism section 5, and enter the storage rack 4. Note that each alignment plate 55, 56 has a thickness slightly larger than the thickness of the disk 3, and this determines the width dimension of the opening 57 when guiding the disk.

Next, the operation of the apparatus 1 having the above configuration will be explained.

First, when the operator specifies a predetermined address _N , the motor 22 starts and the pinion 23 rolls on the rack 24, so that the regeneration mechanism section 5 is guided by the guide rods 20 and 21 and moves toward the arrow _X1 or X. Moving in _two directions, the position where the slit detector 80 detects the slit 13 at a predetermined location, that is, the disk receiving position P of the playback mechanism section 5 is directly below the disk 3 _N in the disk storage section 12 _N at the specified address. Stop at a position opposite to.

Next, the motor 38 is started and rotates forward, and the cam gear 35 is rotated approximately 280 degrees in the direction of arrow _B1 via the worm 81.
Rotate degrees. When the cam gear 35 rotates, the lever 50 moves in the direction of arrow _Y1 in FIG. 4
1 and escapes upward through the opening 57. The tapered surface 61a of the roller 61 is the lower end of the outer peripheral edge _{3a of the disk 3N in} the storage section 12N of the rack 4.
A ₄ abuts and locks the disc 3 N, and lifts the disc 3 _N a little above the disc stopper 14 as shown by the two-dot chain line. Further, the rotating arms 62 and 63 rotate counterclockwise and clockwise, respectively, so that the positioning plate 5
5 and 56 move in the direction of arrow _Z1 and rise, and are placed inside the storage section _12N in the storage rack 4, that is, the storage section _12N.
It enters into the gap between adjacent partition wings 10 that form a . Further, the expansion lever 58 is operated, and the guide plates 51 and 52 are moved away from each other, so that the opening 57 is fully opened.

When the cam gear 35 rotates further, the alignment plate 5
5 and 56 further enter into the storage section _12N , and the positioning plates 55 and 56 become in a state where they can be regarded as members protruding directly below both ends of the storage section _12N . Therefore, in this state, each alignment plate 55, 56 moves the guide plates 51, 52 to the storage section _12N when returning the disk, which will be described later.
It can play a role in regulating the position so that it matches the . Further, the alignment plate 56 on one side pushes up the disk stopper 14 and rotates it clockwise. As a result, in the apparatus 1, the disk 3 is released from being locked by the disk stopper 14, and is instead supported by the disk carrying arm 46 (the tapered surface 61a of the roller 61).

When the cam gear 35 further rotates, the lever 50 moves in the direction of the arrow _Y2 and moves the disk transport arm 46.
starts rotating counterclockwise. In response to the counterclockwise direction of the arm 46, the disk _3N descends under its own weight while being supported by the rollers 61, and enters the flat guide space 41 in the reproduction mechanism section 5 from the lower edge side through the fully open opening 57. enter in. When the cam gear 35 rotates further, the arm 46 rotates to its original position, and the disk 3 _N slips out of the storage rack 4 and completely enters the playback mechanism section 5 to be supplied to the playback mechanism section 5. .

At the final stage of rotation of the cam gear 35, the disk regenerator shift mechanism 26 and the disk clamp mechanism operate, and the disk _3N is clamped.

Subsequently, the disc reproducing machine 25 operates, the disc 3 _N rotates at high speed within the reproducing mechanism section 5, and the disc 3 _N is reproduced.

When the playback of disk _3N is completed, the motor 38
starts up again and reverses, and the cam gear 35 moves to arrow B ₂
rotate in the direction.

When the cam gear 35 rotates in the opposite direction, the disk transport mechanism 27, the alignment mechanism 29, the disk regenerator shift mechanism 26, and the disk clamp mechanism
It simply operates in the opposite direction to the disk loading mode described above.

At the beginning of rotation of the cam gear 35, the disk regenerator 2
5 and the disk clamper move away from each other, and the disk _3N is unclamped from the disk regenerator 25. Next, the arm 46 rotates clockwise, and the tapered surface 61a of the roller 61 supports the outer peripheral edge 3a of the disk _{3N .}
is pushed up, and discharge to the outside of the regeneration mechanism section 5 is started.

At the initial stage of ejecting the disk _3N , the disk guide mechanism 28 operates, and the guide plates 51 and 52
As shown in FIG. 4, the alignment plates 55 and 56 are held close to each other. Thereby, the disc guide mechanism 28 is in a state where the inclined guide parts 51a and 52a can guide the disc _3N discharged from the reproduction mechanism part 5, and the opening 57 has a width dimension slightly larger than the thickness of the disc 3. It is made into an elongated opening and is positioned exactly below the storage section _12N .

The disk 3 _N moves in the direction of arrow Z ₁ with the outer peripheral edge 3 a near the lower part being locked by the roller 61
As the arm 46 rises, the upper end side is guided by the inclined guide portions 51a and 52a toward the opening 57, and exits from the reproduction mechanism section 5 through the narrow opening 57. The disk _3N is guided by the opening 57 and comes out of the playback mechanism section 5, and begins to enter the disk storage section _12N .

When the arm 46 rotates clockwise to the maximum, the disk _3N is completely ejected from the playback mechanism section 5 and returned to the original storage section _12N . The operation of returning this disk to the original storage section _12N is also performed by the roller 6.
The tapered surface 61a of 1 is the outer peripheral edge 3a of the disk _3N .
This is done by simply locking and pushing up. When the disk 3 _N is stored in the storage section 12 _N , the alignment plates 55 and 56 are lowered and the disk stopper 1
4 returns to operation.

When the cam gear 35 rotates further, the arm 46 starts rotating counterclockwise, and the disc 3 _N
is locked by the disk stopper 14 and returns to the initial state where it was stored and held in the original storage portion _12N .

By repeating the above operations, the designated disks in the storage rack 4 are returned to the original storage section of the storage rack after being played, and are sequentially selected and played.

Here, in the device 1, when returning the disk _3N to the original storage section _12N , the position of the disk _3N is positioned directly below the storage section _12N by fitting the positioning plates 55 and 56 into the storage section _12N. However, the disk return operation will be explained in the case where the position of the disk _3N is slightly deviated from the storage part _12N due to variations in parts accuracy, assembly accuracy, etc.

As shown in FIG _. 6 _, when the position of the disk _3N is slightly shifted from the position of _the storage section _12N in the direction of the arrow Pass through the opening 57,
Its side edges 3a are fitted between the partition wings 10 protruding from the storage rack 4. That is, disk 3 _N
is returned into the storage section _12N while the signal surface 3c side is in sliding contact with the lower end 10a of the partition blade 10.

However, the tip end 46a of the arm 46 has a tapered surface 61a that is inclined so that the label surface 3b side of the disk 3 is lower in the thickness direction of the disk 3.
Since the roller ₆₁ having a
0a, the outer peripheral edge 3a of the disk _3N supported by the tapered surface _61a moves in the direction of the arrow along the inclination of the tapered surface 61a as the disk 3N returns.
X Displaced in _two directions. Therefore, disk 3 _N
When the signal surface 3c of the disk 3N rubs against the lower end 10a of the partition blade 10, the disk _3N moves along the slope of the tapered surface 61a to move the lower outer peripheral edge 3a along the arrow.
The contact is relieved by displacement in the _X2 direction. In this way, the load of rubbing by the partition blades 10 on the signal surface 3c is reduced, the signal surface 3c is prevented from being scratched, and the life of the disk _3N can be maintained well.

Also, when returning the disk _3N , the arm 46 rotates, but the roller 61 that supports the disk _3N
Since it is rotatably supported by the shaft 46b, the force that tends to cause the disk _3N to rotate together with the rotation of the arm 46 is offset by the rotation of the roller 61. Therefore, when the disk 3 _N moves up and down as the arm 46 rotates, the rotation of the roller 61 prevents the disk itself from rotating.
That is, the disk _3N moves up and down without rotating, and the guide panels 39, 40 and the partition blade 10
This prevents rubbing against other objects.

It should be noted that when the position of the disk _3N is slightly shifted in the direction of arrow _X2 with respect to the storage portion _12N , contrary to FIG. 6, the disk _3N is tilted toward the signal surface 3c side. In this case, the disk 3 _N is returned to the storage section 12 while the label surface 3 b side is in sliding contact with the lower end 10 a of the partition wing 10 . However, unlike the signal side 3c, there is no problem in playing the disc _3N even if the label side 3b is slightly scratched, so the tilting of the disc _3N toward the signal side 3c can be ignored.

Effects of the invention As mentioned above, in the recording disc automatic playback device according to the present invention, the recording disc support part is inclined in the thickness direction of the recording disc so that the label side of the recording disc is lower. Even if the position of the disk on the playback machine side is slightly deviated from the position of the original storage section to which it is returned, the disk is moved to the recording disk in such a way as to alleviate the rubbing of the signal surface of the disk that slides against the lower end of the partition blade that forms the storage section. It can be avoided along the inclination of the support part, thus reducing the load caused by rubbing with the partition blades and preventing scratches on the signal surface of the recording disk, which improves normal playback over the life of the recording disk. It has features such as being able to maintain

[Brief explanation of the drawing]

Fig. 1 is a diagram for explaining one embodiment of the automatic recording disc reproducing device according to the present invention, Fig. 2 is a perspective view showing the configuration of the device, and Fig. 3 is a diagram showing the arm, roller, and storage rack in the reproducing mechanism section. Diagram showing the disks in the
Figure 4 is a plan view of the playback mechanism section viewed from above;
Figures A, B, and C are diagrams for explaining the cam gear, and Figure 6 is a diagram for explaining the state when the position of the disk deviates from the position of the storage section. 1... Compact disk automatic selection and playback device,
3...Compact disk, 3a...Outer rim, 3
b... Label surface, 3c... Signal surface, 4... Disc storage rack, 5... Playback mechanism section, 10... Partition wing, 10a... Lower end, 12... Disc storage section, 13... Slit, 14 ... Disk stopper, 17, 18 ... Opening, 20, 21 ... Guide rod, 25 ... Disc playback machine, 26 ... Disk playback machine shift mechanism, 27 ... Disk transport mechanism, 28 ... Disk guide mechanism, 29...Positioning mechanism, 35...Cam gear, 38...Motor, 3
9, 40...Guide panel, 41...Flat guide space, 46...Disk transport arm, 46a...Tip, 46b...Shaft, 47...Pinion, 48...
...Lack, 49... Cam follower, 51, 52...
...Guide plate, 51a, 52a... Inclined guide part, 5
5, 56... Alignment plate, 57... Opening, 58...
...Expansion lever, 61...Roller, 61a...Tapered surface.

Claims (1)

[Scope of utility model registration request] A recording disc storage unit that holds a recording disc in a vertical position; a recording disc player disposed below the storage unit that receives and plays the recording disc; and a disc support member provided at the tip of the disc support member during playback. a recording disk carrying arm that supports the lower edge of the recording disk and moves it downward to feed the recording disk to the playback machine, and when the playback is finished, moves the recording disk upward and returns it to the storage section. 1. An automatic recording disk reproducing device, wherein the recording disk supporting portion of the disk supporting member is formed to be inclined in the thickness direction of the recording disk so that the label surface side of the recording disk is lower.