JPH0348768Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention is applicable to video disks and PCMs, for example.
This invention relates to an information recording medium automatic selection and reproduction device which selects one information recording medium from a disk storage rack storing a large number of disk-shaped information recording media such as audio disks and enables a reproduction device to automatically reproduce the selected information recording medium.

(Prior Art) Generally, it is well known that so-called playboxes that automatically play audio records and the like are installed in stores and the like and are used as BGM (background music).

In recent years, unlike records that only contain music, such as the audio records mentioned above, records with pictures have been released.
It is also well known that information recording medium playback devices (hereinafter referred to as playback devices) for playing back disk-shaped information recording media (hereinafter referred to as disks) such as video discs have been developed.

This type of playback device, as shown in Japanese Unexamined Patent Publication No. 52-20965, for example, allows discs to be removed from the playback device by manually loading a lidded cartridge containing a disk into the playback device and pulling it out. The clamping mechanism is configured to clamp the disc and leave it in the reproducing device so that the pickup means can reproduce recorded signals on the rotating disc. Such playback devices are used in a wide variety of applications, from general household use to commercial use such as shops and wedding halls.

(Problems to be solved by the invention) When the above playback device is used for karaoke at a snack bar, for example, or as BGV (background video) to create an atmosphere at a wedding venue, etc. , if only one unit was used, the waiting time for the next image would be long, making it inefficient.
In addition, when multiple units are used, not only is there the problem of having to prepare a dedicated person to operate the equipment, but when a disc is collected after signal playback has finished, this disc must be placed in the empty case of another disc being played. There was a situation where the disc was accidentally stored in the disc, and after that, there were problems such as the content displayed on the case and the content recorded on the disc did not match. For this reason, there is a growing demand for automated playback devices to enable accurate and continuous playback at all times. Furthermore, manual playback devices have various drawbacks, such as the operator forcing a cartridge into the device, which may damage the device and the disk.

The main automatic playback device is also equipped with a transport means for selecting one disk from a disk storage rack storing a plurality of disks and transporting it to the playback device. This conveyance means is generally provided with a drive means for rotating the disk in a predetermined direction so that the desired signal recording surface of the disk can be properly mounted on the playback device. It is very difficult to control the rotation angle of the disk and the structure is complicated, and if the next operation is performed without accurately positioning the rotation of the conveyance means, it will not only damage the drive system of the equipment but also cause the disk to be damaged. There were problems such as damage.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned problems of the conventional art. A disk storage rack B houses a plurality of cartridges D each consisting of a lid that can be opened and closed, and by inserting and pulling out the cartridges into the device, the lid and the disc-shaped information recording medium are left in the device. , an information recording medium reproducing device C that reproduces this remaining disc-shaped information recording medium.
a carrier mechanism F comprising a cartridge insertion/removal means J for selecting one cartridge from a plurality of cartridges stored in the disk storage rack and loading it into the information recording medium reproducing apparatus; a moving mechanism G/H for moving the mechanism to a predetermined position of the disk storage rack and a predetermined position of the information recording medium reproducing device; and a reproducing mechanism for a disc-shaped information recording medium in the cartridge selected by the carrier mechanism. a drive means K equipped with a motor for rotating the cartridge in a predetermined direction so that the signal recording surface to be recorded can be reproduced by the information recording medium reproducing apparatus; A sensor plate 57a formed with a predetermined pattern that changes according to the rotation angle of the carrier mechanism is provided, and a detection means 58 for detecting the pattern shape of the sensor plate 57a is provided to control the angular position of the carrier mechanism. An object of the present invention is to provide an information recording medium automatic selection and playback device characterized in that it is configured to.

(Example) Fig. 1 is an external perspective view showing the configuration of the information recording medium automatic selection and playback device of the present invention, Fig. 2 is an external perspective view of a cartridge containing a disk applied to the inventive device, and Fig. 3 1 is an external perspective view schematically showing a reproducing device used in the device of the present invention.

As shown in FIG. 1, the information recording medium automatic selection and playback device (hereinafter referred to as the automatic playback device) A of the present invention has a housing 1 composed of two space parts, left and right. A pair of disk storage racks B ₁ and B ₂ in which a plurality of cartridges D storing disks are arranged and stored are placed on the upper and lower sides.
The playback devices C 1 and C 2 are arranged in tiers, and two playback devices C ₁ and C ₂ equipped with mechanisms to be described later are also arranged one above the other at the bottom. These disk storage racks B ₁ and B ₂ are configured to be slidable in the direction of the arrow on rails 39 and 39 that are horizontally suspended on the housing 1 together with the mounting member 38, so that the plurality of internal cartridges D can be easily replaced. It's summery.

On the other hand, in the space 1b on the right side, a plurality of cartridges D stored in the disk storage racks B ₁ and B ₂ are selectively taken out and placed in one of the two playback devices C ₁ and C ₂ at the bottom. a carrier mechanism F having a cartridge insertion/removal means J for appropriately loading the cartridges; and moving this carrier mechanism F to predetermined disk storage racks B ₁ and B ₂ and predetermined playback devices C ₁ and C ₂ (up and down movement). and a selection drive mechanism H that moves (left and right) the carrier mechanism F to a cartridge D at a desired address of a predetermined disk storage rack B and an introduction hole of a predetermined playback device C.
A drive device section E is provided which is generally composed of. Note that I is a control device placed below the playback device _C2 .

Here, in order to facilitate understanding of the automatic playback device A of the present invention, a cartridge D containing a disk will be explained.
The general configuration of the playback device C (C ₁ , C ₂ ) that plays back the disks in the cartridge D will be explained.

The cartridge D, as schematically shown in FIG. A disk 10 such as a disk is stored. That is, the sleeve 2 is made by combining the pair of halves 2a and 2a with their lids together and facing the insertion direction side (arrow).
The opening 4 (indicated by Z ₁ ) is a rectangular shape with the remaining three sides closed, and a lid 3 is removably connected to the sleeve 2 so as to open and close the opening 4 .

The lid 3 connects the main body 5 (the thickness of which is approximately equal to the distance between the openings 4) to the upper plate 6 and lower plate 7 of the sleeve 2.
The protrusions 9, 9 of the pair of engaging arms 8, 8 protrudingly formed on both sides of the sleeve 2 are inserted into the sleeve 2, and the protrusions 9, 9 of the engagement arms 8, 8 are inserted between The wide flange 12 contacts the opening side ends of the upper and lower plates 6 and 7, and is coupled to the sleeve 2 while covering the opening 4 while restricting movement in the directions of arrows Z ₁ and Z ₂ . . Furthermore, a pair of overpass portions 3a are formed in the center of the lid body 3, into which a disk clamp mechanism, which will be described later, enters.

On the other hand, as schematically shown in FIG. 3, the reproducing device C for reproducing the disk 10 in the cartridge D is a sleeve expansion device that expands the sleeve 2 provided at the introduction port 14 of the casing 13 into which the cartridge D is introduced. mechanism 15; a disk clamp mechanism 16 for clamping the outer group guard of the disk 10;
and a pair of lid latching mechanisms 17 for latching the lid 3. Note that 18 is formed to protrude from the introduction port 14, and the opening is formed into a tapered portion 18a.
This is a guide section for introducing the cartridge D.

The sleeve expanding mechanism 15 is configured as shown in, for example, Utility Application No. 16206/1988, which was previously proposed by the present applicant, and the sleeve expanding mechanism 15 is configured as shown in Utility Model Application No. 16206/1987, and opens the introduction port 14 in response to the insertion and withdrawal of the sleeve 2 into the reproducing device C. It moves back and forth between the return position on the side and the innermost part of the device.

When playing a disc, the disc 10 is mounted on a turntable 19 in a playback device C. This disk mounting operation is performed using the carrier mechanism F.
This is automatically performed by the reciprocating operation of the cartridge insertion/removal means J, which will be described later.

That is, the cartridge insertion/removal means J of the carrier mechanism F inserts the sleeve 2 from the guide portion 18 through the introduction port 14 to the innermost part of the apparatus, and then pulls it out. Further, when the cartridge D is inserted, the insertion position of the cartridge D is regulated by the action of the tapered portion 18a formed at the opening of the guide portion 18.

Therefore, as shown in FIG. 3, the sleeve 2 is extended along the guide rails 21a, 21b with its left and right ends supported by sliders 20a, 20b with its opening 4 expanded by the sleeve expansion mechanism 15. Tsute Z ₁
inserted in the direction.

When the cartridge D is inserted to the innermost part of the playback device C, the lid body 3 is latched by the lid latching mechanisms 17, 17, the outer groove guard of the disk 10 is clamped by the clamp mechanism 16, and the sleeve 2 Only the arrow Z is pulled out in _two directions. Note that when the lid 3 is latched by the pair of lid latching mechanisms 17, 17, an elastic return force is accumulated in the lid 3 by an elastic means (not shown).

At the stage when the sleeve 2 is pulled out from the playback device C, the lid body 3 is latched and held at the back of the device as shown by the two-dot chain line, and the disk 10 is clamped by the clamp mechanism 16 at its outer groove guard. Moreover, the center hole 10a is supported at a position above the turntable 19. Thereafter, in response to a play signal, the clamp mechanism 16 releases the clamp, the support ring 22 descends, and the disk 10 is placed on the turntable 19 and is mounted by clamping the center hole 10a.

Here, the disk 10 is rotated integrally with the turntable 19 by a motor, and is reproduced by a pickup means 23 that moves in the direction of arrow P.

When the playback mode state ends, the disk 10 stops rotating and, contrary to the above case, the support ring 2
2 rises, the clamp mechanism 16 operates, and the disk 10 is supported at a position above the turntable 19. In this state, when the empty sleeve 2 is inserted into the playback device C using the cartridge insertion/removal means J and pulled out in the same manner as the loading operation described above, the disk 10
is housed together with the lid 3 so as to protrude into the sleeve 2 by the accumulated elastic force. As a result, the disk 10 is collected into the cartridge D and taken out into the playback device C.

Next, the specific structure of the disk storage rack B (B ₁ , B ₂ ) will be explained with reference to FIGS. 4 to 6.

As shown in the external perspective view of FIG. 4, the disk storage rack B is composed of a box body 25 with an opening 24 on one side, and inside the box body 25, the cartridge D shown in FIG. Concave grooves _n1 , _n2 , _.

As shown in an enlarged view in FIG. 5, each of the concave grooves n ₁ , n ₂ ...n ₃₁ of the lower plate 26b has a width at the center that approximately corresponds to the thickness of the cartridge D, and a width extending from the opening 24 to the inner part. In the section N, which is approximately 1/3, a tapered surface 27 is formed such that the distance from the upper plate 26a increases gradually toward the opening 24 side, and these concave grooves n ₁ , n ₂ ... n ₃₁ The multiple partition walls p ₁ ...p _o that partition the
Also, tapered surfaces 28 are formed on both sides of the opening 24 so that the width dimension on the side of the opening 24 gradually increases.

By forming the concave grooves n ₁ , n _{2 .} . . n ₃₁ so that the dimensions in the vertical and horizontal directions on the opening 24 side become larger sequentially from the central portion, the cartridge insertion/removal means J to be described later is When the cartridge D is inserted into or removed from the disk storage rack B, even if the cartridge D is slightly tilted, the operation can be performed smoothly by the tapered surfaces 27 and 28 of the rack.

Further, in the vicinity of the innermost part of the box body 25 of the partition wall _p1 ... _po , the width of the concave grooves _n1 , _n2 ... _n31 is larger than the width of the central part (width corresponding to the thickness of the cartridge D). Step portions p ₁ a, p ₂ a _, etc. are formed respectively, and a plurality of leaf springs 29 having a shape as shown in _FIG . Each one is locked. That is, the leaf spring 29 is bent into a U-shape with a pair of elastic arms 29a, 29a formed on both sides of the front piece 29b.
As shown in FIGS. 4 and 5, the front piece 29b and the locking piece 29c protruding from the front piece 29b and the locking piece 29c protruding from the front piece 29b are placed on the opening ₂₄ side so as to face _into the adjacent concave groove. It has stopped. Therefore, a cartridge stored vertically with _its lid 3 as a leading end in a disk storage rack _B as shown in FIG. D indicates that the movement in the width direction is restricted in the central part of the concave grooves n ₁ ,...n _o , and that the expansion action of the elastic arms 29a, 29a of the leaf spring 29 attached thereto is applied to the inner part. It is elastically pinched from both sides, and movement in the front and back direction is restricted.

Note that 30 cartridges D containing disks are sequentially inserted into the concave grooves n ₁ , n ₂ . . . n ₃₀ in the disk storage rack B, and then the last concave groove
n ₃₁ is left empty so that an empty sleeve 2 can be inserted therein. Therefore, the cartridge D loaded into the device A of the present invention is placed in the upper and lower disk storage racks B ₁ ,
In total, 60 pieces of B ₂ can be stored.

In addition, in Fig. 4, 30 is a shutter mechanism,
This has the function of opening and closing the opening 24 side of the 31st concave groove _n31 of the box body 25.

That is, the shutter mechanism 30 is as shown in external perspective views in FIGS. 7A and 7B, with FIG. 7A showing the closed state and FIG. 7B showing the open state.

In FIG. 7, a pair of upper and lower shafts 32a and 32b embedded in the base plate 31 of the shutter mechanism 30 are applied with rotational force in the counterclockwise direction by coil springs 33 and 33 fitted into the shafts. A pair of arms 34a,
34b is pivotally supported, and a pair of arms 34
A plate-shaped shutter 35 is pivotally supported at one end of each of a and 34b. This shutter mechanism 30 is mounted on the opening 24 side of the box body 25 so that the shutter 35 is positioned so as to close the concave groove _n31 .

Here, when the disk storage rack B with the shutter mechanism 30 attached is taken out from the automatic playback device A, the shutter 35 is rotated as shown in FIG. As shown, the opening 24 side of the concave groove _n31 for storing empty cases is always closed, and the disk storage rack B
When the is inserted into the automatic playback device A, the lower arm 34b is locked by the protrusion 36 of the device,
As this rotates clockwise about the shaft 33, the shutter 35 moves in parallel to the right in the figure along the guide plates 31a and 31b of the base plate 31, as shown in FIG. 7B, and forms a concave shape. Opening 24 of groove n ₃₁
Leave the side open. Therefore, when each of the disk storage racks B ₁ and B ₂ is taken out by the automatic playback device A and cartridges D are stored therein, 30 cartridges D can be stored in each of the concave grooves n ₁ to n ₃₀ . However, since the entrance of the 31st concave groove _n31 is closed by the shutter 35 of the shutter mechanism 30, the cartridge D will not be accidentally stored there.

Further, as shown in FIG. 8, the disk storage rack B has a concave portion 37 formed at a predetermined position on the bottom thereof.

On the other hand, the mounting member 38 (shown in FIG. 1) on which the disk storage rack B is placed is engaged with the recessed portion 37 when the disk storage rack B is placed in the normal position thereon. A coil spring 4 is stretched between the support body 42 and the coil spring 4 at a position corresponding to the coil spring 4.
A locking mechanism 41 having a projecting shaft 40 that elastically moves up and down by means of a locking mechanism 41 is disposed.

45 is a locking piece that is fitted into the shaft 44 of the support body 42 and the protrusion shaft 40, respectively, and this is a locking piece that is fitted into the shaft 44 of the support body 42 and the protrusion shaft 40.
A lifting force is applied by a coil spring 43a.

Therefore _, as shown in _FIG . Then pull it out and take it out as shown in Figure 4. After storing the cartridge D in each of the 30 concave grooves _n1 to _n30 excluding the concave groove _n31 , place the disk storage rack B. It is placed on the disc storage rack 38 and stored in the automatic playback device A again as shown in the first figure. At this time, as shown in FIG. 8A, the recessed portion of the disk storage rack B 37 and lock mechanism 4
When the protruding shaft 40 of the housing 1 is in the correct placement position, the protruding end of the protruding shaft 40 enters the recessed part 37, so that the one end 45a of the raised locking piece 45 is aligned with the housing 1. Since the disk storage rack B does not correspond to the protrusion 46 of the mounting member 3,
8 and can be moved into the device and loaded securely.

By loading the disk storage rack B onto the device, the disk storage rack B is moved to the mounting member 38.
When the shutter mechanism 30 shown in FIG. 4 reaches the final rest position, one end of its lower arm 34 is locked to the protrusion 36 of the housing 1, as shown in FIG. 7B. The shutter 35 has a pair of arms 34a,
By clockwise rotation of 34b, the 31st concave groove n ₃₁ can be brought into an open state by moving in parallel from the concave groove n ₃₁ .

Here, as shown in FIG. 8B, if the disk storage rack B is not placed at the normal placement position of the placement member 38, the protrusion shaft 4 of the locking mechanism 41
0 is the concave portion 3 of the disk storage rack B as shown in the figure.
7, it is pressed against the bottom surface of the rack B and descends against the elastic force of the coil springs 43a and 43b. As the protrusion shaft 40 descends, the locking piece 45 also descends, and its one end 45a
corresponds to the protrusion 46 of the housing 1, and prevents the placing member 38 on which the rack B is placed from entering the device, thereby stopping the operation of the device and protecting it.

Next, the drive mechanism E of the device A of the present invention will be explained for each drive unit.

As shown in FIG. 1, the drive mechanism E is roughly composed of the carrier mechanism F having the cartridge insertion/removal means J as described above, the elevating mechanism G, and the selection drive mechanism H.

Carrier mechanism F that constitutes a part of the main part of the drive section
and the selection drive mechanism H, as shown in FIG.
It is provided on a rectangular unit base 48 formed by a horizontal bridge 48a and a vertical bridge 48b. A unit base 48 equipped with these drive parts
As shown in FIG. 1, the disk storage racks B ₁ , B ₂ and A pair of upper and lower bearing portions 49a are attached to a pair of guide shafts 47a and 47b facing the operating sides of the playback devices C ₁ and C ₂ .
49b is supported and moves up and down on this axis in the Y ₁ and Y ₂ directions. Note that 69 is a weight suspended from the other end of the timing belt 68.

Also, both vertical bridges 48b of the unit base 48,
A base portion 52 that rotatably supports the carrier mechanism F is attached to the pair of shafts 50, 50 installed between the shafts 48b so as to be slidable in the X ₁ and X ₂ directions by means of a bearing portion 51. Further, a rotation shaft 59 of a carrier mechanism F is supported on this base portion 52. Therefore, a carrier base 54, which will be described later and which forms a housing of the carrier mechanism F, is mounted substantially perpendicularly to the unit base 48 in a rotatable manner. Further, K in the figure is a rotation drive section which constitutes a part of the main part of the present invention for rotating the carrier mechanism F, and this is also shown in FIG. 10.

Reference numeral 53 denotes a motor that rotates the carrier mechanism F, which is installed in the base part 52 that supports the carrier mechanism F, and on its output shaft there is a pattern disk for a sensor, which constitutes a part of the main part of the present invention. The pulley 57 equipped with a worm gear 56a meshes with a worm wheel 55 that is integrated with a rotating shaft 59 provided on the base 54a of the carrier base 54, and a pulley 5 provided on the axis of the worm gear 56a.
Driven by a belt via 6.

In addition, the motor 53 rotates at 40 rpm and the carrier base 5
The gear ratios of the reduction mechanisms such as the worm gear 56a and the wormhole 55 are appropriately set so as to rotate the worm gear 56a and the wormhole 55 by 90 degrees. Further, 58 is a sensor that detects a pattern formed on the pattern disk 57a by an operation described later.

The selection drive mechanism H is provided on the unit base 48, as shown in FIG. A gear 64 having a worm gear 63 is driven, and the worm gear 63 rotationally drives a pair of timing gears 66, 66 supported on the horizontal bridge 48a via a worm wheel 65. In addition, 70 is a belt installed on the timing gears 66, 66,
This includes the carrier base 5 of the carrier mechanism F mentioned above.
A base portion 52 rotatably supporting 4 is fixed.

A sensor assembly 74 is fixed to the upper end of the base portion 52 as shown in FIG. A sensor is provided at a position facing the address detection pattern 73 formed on the side surface of 48a. Therefore, by rotating the address motor 60 in a predetermined direction, the sensor assembly 74 of the base portion 52 supporting the carrier mechanism F detects the X ₁ while reading the address detection pattern 73 formed as described below. ,X ₂ Travel in both directions.

The specific configuration of the sensor assembly 74 is as follows.
This is as shown in the exploded perspective view of FIG. That is, 77 is a support frame formed by bending a pair of leg parts 77b, 77b protruding from the flat plate part 77a into a substantially U-shape. , 84 is supported vertically movably, and a sensor plate 75 having a sensor 85 is fixed to mounting pieces 76a, 76b on the lower surface of the running member 76 by fixing means such as screws. .

81 is a coil spring inserted between the support frame 77 and the running member 76, and the elastic force of this spring causes the running member 76 to move around the shafts 79, 8 within the support frame 77.
0 elastically moves up and down.

Further, 78 is the leg portions 77b, 77b of the support frame 77.
This adjustment screw is inserted between the two and passes through the running member 76, and by adjusting the rotation, the position of the running member 76 in the left and right direction with respect to the running direction is adjusted. The elastic force of the leaf spring 83 restricts movement in the left and right direction relative to the support frame 77.

Therefore, the sensor assembly 74 configured as described above is mounted on the base portion 52 with the sensor 85 attached to the bottom facing the address detection pattern 73.
When attached to the upper end, each track of the address detection pattern 73 and the sensor 85 of the running member 76 can be adjusted by adjusting the adjusting screw 78 as appropriate.
Since the cartridge D can be accurately positioned, the detection accuracy of the cartridge D is improved.

Further, the sensor assembly 74 has X ₁ ,
When traveling in the X _two directions, for example, an error may occur in the assembly accuracy of the mechanism, and the sensor 85 may
Even if the running member 76 separates from the surface and pattern detection becomes difficult, the running member 76 can elastically move up and down to absorb the error due to the action of the coil springs 81, 81 inserted between the running member 76 and the support body 77. Therefore, reliable pattern detection can be performed.

Here, the specific configuration of the disk insertion/removal means J and carrier mechanism F will be explained again in FIG. 9 and 1.
This will be explained with reference to FIG.

The carrier base 54 of the carrier mechanism F is the base 5
A pair of arm portions 54b, 54b formed on both sides of 4a
The guide plate 7 is formed into a substantially U-shape, and has a guide hole 71a formed at the open end for allowing the cartridge D shown in FIG.
1 is fixed.

72 is a guide shaft installed between the base 54a of the carrier base 54 and the guide plate 71;
The substrate 93 of the cartridge insertion/removal means J is guided by this shaft and moves in both directions Z ₁ and Z ₂ .

Rack gears 89, 8 are provided on the opposing inner walls of the arm portions 54b, 54b of the carrier base 54 in the longitudinal direction.
9 are formed respectively, and the guide plate 71
Guide grooves 88, 88 for introducing the cartridge D are formed in the longitudinal direction along the guide hole 71a, respectively.

FIG. 13 shows a specific configuration of the guide groove 88 formed in the arm portion 54b, which is a side view seen from the direction of arrow W in FIG. The guide groove 88
It is slightly larger than the length in the insertion direction of the cartridge D shown in the figure, and the inner part 88a on the base 54a side has a width that approximately corresponds to the thickness of the cartridge D, and the tip part 88c on the guide plate 71 side is gradually wider on the front opening side. The central portion 88b, which is continuous with the tapered portion, is set wide so that it can rotate about a neck portion 88d, which approximately corresponds to the thickness of the cartridge D, as a fulcrum.

Therefore, with the cartridge insertion/removal means J, which operates as described later, clamping the cartridge D, the carrier base 54 rotates 90 degrees about the shaft 59 supported by the base portion 52, as shown in FIG. When loading a disk into the playback device C, even if the playback device C and the carrier base 54 do not match exactly, in the process of inserting the cartridge D, the leading end of the cartridge D can be inserted into the playback device shown specifically in FIG. The rear end of the cartridge D is connected to the neck portion 88d so that the cartridge D is regulated by the device C guide portion 18 and loaded into the device.
It rotates within the center portion 88d with reference to . In this way, during the insertion process of the cartridge D, the positional deviation with respect to the playback device C is absorbed by the hook guide groove 88, so that an unreasonable insertion force acting on the playback device C can be prevented and protected.

Further, the structure of the cartridge insertion/removal means J will be explained with reference to FIG. 11 again.

The cartridge insertion/removal means J is disposed on the substrate 93, and is supported by the guide shaft 72 installed on the carrier base 54 as described above, and is adapted to mesh with the rack gear 89 formed on the arm portion 54b. The rotation of pinion gears 92 and 92, which are connected to each other via a shaft 91, moves in both directions Z ₁ and Z ₂ .

Reference numeral 94 denotes a motor that controls the movement of the cartridge insertion/removal means J, and a gear 95 ₁ on the shaft rotates the gear 95 ₂ via a belt, and also rotates the gear 95 2 via a worm gear (not shown) coaxially with the gear 95 ₂ . By rotating a worm wheel (also not shown) of the pinion gear shaft 91, the substrate 93 is reciprocated on the carrier base 54.

Reference numeral 96 denotes a clamper consisting of a pair of upper and lower flaps 96a and 96b whose bases are pivotally supported on a shaft 97, and both flaps 96a and 96b are stretched by a coil spring 98 so as to be drawn toward each other. A cam gear 99 having cams 99a at both ends thereof is fixed to a shaft 97 of the clamper 96, and is configured to expand the flaps against a coil spring 98 stretched between the flaps 96a and 96b. A cylindrical cam 100 is provided.

Further, the cam gear 99 is connected to the clamper motor 1.
It meshes with the output gear 102 of No. 01 via an intermediate gear 103. A pattern disk 104 on which a pattern is formed is fixed to the output gear 102 to control the rotation of the clamper motor 101 .
Note that 105 is a sensor that detects the pattern shape of the pattern disk 104.

106 are arranged on both sides of the clamper 96,
A pair of push-out pins are supported by a bracket 107, and these are always held by a coil spring 108.
It is urged to protrude in the _Z1 direction.

Here, the specific operations of the information recording medium automatic selection and playback apparatus of the present invention configured as described above will be sequentially summarized and explained.

(1) As shown in FIG. 2, 30 cartridges D are stored in the 30 concave grooves n ₁ to n ₃₀ in the disk storage rack B configured as shown in FIG. do. When this disk storage rack B is taken out from the apparatus, the shutter 35 of the shutter mechanism 30 closes the concave groove _n31 as shown in FIG. 7A, as described above.

Here, the disk storage racks B ₁ and B ₂ each containing 30 cartridges D are stored in the housing 1 of the automatic playback apparatus A as shown in FIG. At this time, use disk storage rack B.
If (B ₁ , B ₂ ) are not correctly placed at the predetermined positions of the placing member 38, as shown in FIG. 8B,
The protruding shaft 40 of the locking mechanism 41 is pressed against the bottom of the disk storage rack B and descends. As a result, the locking piece 45 corresponds to the protrusion 46 in the device, so that this disk storage rack B cannot be loaded into the device.

Also, the disk storage rack B is placed on the mounting member 38.
When properly placed on the top, the protruding shaft 40 is inserted into the recess 37 at the bottom, as shown in FIG. 8A. Therefore, since the locking piece 45 does not descend, the correspondence with the protrusion 46 is avoided and the disk storage rack B does not interfere with entering the apparatus. When each of the disk storage racks B ₁ and B ₂ reaches the final rest position of the apparatus as shown in FIG.
When the shutter 35 is locked, the shutter 35 moves and the concave groove _n31 is opened.

(2) If one of the cartridges D stored in the disk storage racks B ₁ and B ₂ is selected by operating a button (not shown) on the device, control from the control device I shown in FIG. By the signal, the 9th
As shown in the figure, the unit base 48 is moved to a predetermined disk storage rack by the elevating mechanism G.
For example, the shaft 47a, up to the position of the upper rack _B1 ,
47b vertically at a predetermined speed.

When this elevating mechanism G operates, the unit base 4
A sensor assembly 111 having a configuration similar to the sensor assembly 74 shown in FIG. 12 fixed to one end of the housing 1 moves up and down while detecting a control pattern as shown in FIG. do.

That is, at the cartridge take-out positions of the upper and lower disk storage racks B ₁ and B ₂ and the cartridge insertion positions of the playback devices C ₁ and C ₂ corresponding to the sensor assembly 111, there is a disk insertion/removal means J of the carrier mechanism F. Four types of patterns 109a, 109b, 109c, 1
09d are vertically aligned along the moving direction of the carrier mechanism F. Therefore, if the control signal for the carrier mechanism F from the control device I indicates the position of the upper disk storage rack _B1 , the sensor assembly 111 moves the carrier base 54 at a predetermined speed until it detects the pattern 109a. . In addition, in FIG. 15, 110 is pattern 10.
This is a straddle sensor installed between 9a, 109b, 109c, and 109d, and during this period, the microcomputer continues the previous movement of the carrier base 54, and when the carrier base 54 moves to the desired pattern position, , sensor assembly 1
11 detects the pattern shape and carrier base 5
4 locates the deceleration and stop position. Furthermore, by forming the patterns 109a to 109d via the sensor 110 in this way,
Even after the disk storage rack and playback device are set in the housing 1, when adjusting the stop position,
One divided pattern can be easily adjusted as appropriate. Therefore, when positioning the carrier base 54, it can be easily adjusted without moving the heavy disk storage rack or playback device.

One way to perform deceleration and stop position is to connect one pattern 109a to four sensor tracks T1 to _T1 , as shown in FIG.
T ₄ , and this is set wide so that the sensor can read the deceleration pattern r when the carrier base 54 changes from normal speed to deceleration mode, and the stop pattern s is set at a position where each track pattern overlaps and where each track pattern is continuous. By narrowly setting the carrier base 54 in a position where the sensor assembly 1
11, the position is controlled to be accurate.

(3) The motor 60 of the selection drive mechanism H is driven simultaneously with the movement of the carrier base 54, and the carrier base 54 is brought to a predetermined disk storage rack B (for example, B ₁ ) by a control signal (channel selection signal). As the timing belt 70 moves,
It moves in the left-right direction (X ₁ , X ₂ ) indicated by the absolute address and reaches the position of a predetermined cartridge D. The movement of the carrier base 54 is controlled by the 10th
As shown in the figure, the sensor 85 of the sensor assembly 74 configured as shown in FIG. 12 detects a pattern 73 having a similar format to the pattern shown in FIG. 15, which is provided on the upper end of the base portion 52. Controls such as deceleration and stopping can be performed by

(4) Then, the carrier base 54, which has moved to the predetermined position of the cartridge D, drives the pinion gears 92, 92 as the motor 94 is driven, as shown in FIG. As a result, the board 93 on which each mechanical element is mounted moves in the _Z1 direction to take out the cartridge D. When the board 93 moves in the _Z1 direction, the cam 100 that controls the opening and closing of the clamper 96 is in operation against the elastic force of the coil spring 98, so that the upper and lower flaps 9
6a and 96b are in an expanded state as shown by solid lines.

When the clamper 96 is expanded, the cam gear 9
Since the cam 99a of 9 releases the pulling force in the _Z2 direction of the flange 112 whose rear end is locked to the ejector pin 106, the ejector pin 106
protrudes in the _Z1 direction.

(5) From the above state, the clamper 96 of the cartridge insertion/removal means J moves in the _Z1 direction with the movement of the board 93 in the expanded state. When the cartridge insertion/removal means J reaches a predetermined clamping position of the cartridge D, a sensor (not shown) detects this state, and the detection signal drives the motor 101 that drives the clamper 96. Coil spring 98 as shown by the two-dot chain line in FIG.
The desired cartridge D is closed by the elastic force of
are clamped as shown in FIG. 14A. Thereafter, the motor 94 is reversely rotated and the substrate 93 is moved in the _Z2 direction. When the board 93 moves in the _Z2 direction, the desired cartridge D clamped by the clamper 96 is moved to the carrier base 54 as shown in FIG.
is introduced into the guide hole 71a of the guide plate 71, and is housed in the guide groove 88 of the arm portion 54b as shown in FIG. Then, the motor 94 is stopped when a sensor (not shown) provided on the substrate 93 detects a predetermined position in the _Z2 direction.

(6) After that, the carrier base 54 containing the cartridge D is lowered at a predetermined speed by the driving of the elevating mechanism G and the selection drive mechanism H until it detects the stop pattern 109c of the predetermined playback device _C1 . Slow down. When the elevating mechanism G operates, the carrier base 54 appropriately moves the cartridge D in the _X1 and _X2 directions in order to move the cartridge D to the correct loading position of the playback device _C1 .
At a slightly delayed timing, the motor 53 is driven to rotate the carrier base 54 approximately 90 degrees to bring the cartridge D into a horizontal state. In addition, disk 1
Since information is recorded on both sides of the carrier base 54, the rotation direction of the carrier base 54 is appropriately selected according to the selected signal. Also, carrier base 5
The rotational position of 4 is controlled by a pattern disk 57a forming a part of the main part of the present invention, on which a pattern is formed as shown in FIG. 17 on the axis of the motor 53 shown in FIGS. 9 and 10. The pattern shape (rotation angle) of the sensor 58 (position indicated by circle)
is controlled by the detection. That is, the pattern disk 57a is composed of three patterns 57a ₁ , 57a ₂ , and 57a ₃ formed concentrically, and the circumference is divided into eight, for example, so that eight angular states can be detected. be. Therefore,
By the sensors 58 shown in FIG. 9 corresponding to each pattern 57a ₁ , 57a ₂ , 57a ₃ , the carrier base 5 is
The rotation state of No. 4 is precisely detected.
Note that the pattern disk 57a is set to rotate the carrier base 54 by 90 degrees in 40 rotations.
Therefore, the precision of the rotation angle of the carrier base 54 is improved, and the mechanism required for sensing the position of the carrier base 54 is made more compact.

Furthermore, the base 54a of the carrier base 54
A sensor and a pattern (neither of which are shown) are provided on the surface facing the base portion 52 that supports the carrier base 54, and the vertical position (initial position) of the carrier base 54 is determined by the pattern shape by the sensor. , and the sensor 58 detects the desired 1/2 of the pattern disk 57a.
Accurate attitude control is achieved when the signals when detecting the pattern No. 8 match.

(7) When the carrier base 54 is in a horizontal state, the cartridge insertion/removal means J operates in the same manner as the operation to take out the cartridge D from the disk storage rack _B1 , and its motor 101 is driven, and the clamper 96 is again operated as shown in FIGS. It is expanded as shown in FIG. 14B. At the same time, board 9
3 is driven, and as the substrate 93 moves, the cartridge D moves into the guide groove 88 while the rear end of the cartridge D is supported by the push-out pin 106.
Move inside in the Z ₁ direction.

As shown in FIG. 13, the cartridge D reaches the guide portion 18 of the playback device C ₁ C at the same time.
Since the rear end reaches the wide part of the central part 88b of the guide groove 88, the tapered part 1
When the loading posture is restricted by 8a, the rear end portion is allowed to rotate within the center portion 88b, so that reliable loading operation of the cartridge D is guaranteed.

(8) Cartridge D is in the 3rd position from the state shown in Figure 13.
As shown in the figure, when loaded into the device C, after the lid 3 and the disk 10 are clamped to the clamping mechanism 16 of the device as described above, the clamper 96 is again inserted into the sleeve as shown in FIG. 14A. At the same time as the sleeve 2 is clamped, the motor 94 is driven and the board 93 moves in the _Z2 direction, and the empty sleeve 2 is stored in the guide groove 88 of the carrier base 54 as shown in FIG. . Then, in response to the play signal, the clamp mechanism 16 releases the clamp as shown in FIG. 3, the support ring 22 descends, and the disk 10 is placed on the turntable 19 and
The 0a portion is clamped and installed.

Here, the disk 10 rotates together with a turntable 19 rotated by a motor, and a pickup means 2 moves in the direction of arrow P.
3.

On the other hand, the attitude of the carrier base 54 is controlled to be vertical as shown in FIG. 9 by the drive of the motor 53, and the cartridge D
The empty sleeve 2 is stored in the open concave groove _n31 of the disk storage rack _B1 from which the sleeve has been taken out.

(9) Thereafter, the carrier base 54 uses each of the drive mechanisms and configurations described above so that the next desired cartridge D, for example, a disk in the disk storage rack _B2 , is loaded into another playback device _C2 according to the operation signal. In the same manner as described above, the second playback device _C2 is loaded with a disk and placed on standby.

(10) When the reproduction mode state of the reproduction device C ₁ ends, the reproduction mode state of the reproduction device C ₂ continues. At this time, the playback device
On the C ₁ side, as shown in Figure 2, disk 10
stops rotating, and contrary to the above case, the support ring 22 rises, the clamp mechanism 16 operates, and the disk 10 is supported at a position above the turntable 19. In this state, when the empty sleeve 2 is inserted into the playback device C using the cartridge insertion/removal means J and pulled out in the same manner as the loading operation described above,
The disk 10 and the lid body 3 are housed so as to protrude into the sleeve 2 by the accumulated elastic force. As a result, the disk 10 is collected into the cartridge D, taken out from the playback device _C1 , and correctly returned to its original storage position in the original disk storage rack _B1 .

In this way, when a desired disk is selected by the operation signal, the disk in the cartridge D in the predetermined disk storage rack is automatically loaded into one playback device and played.
In response to the next signal, the carrier base selects the next disc to be played, moves to a predetermined disk storage rack, and loads the selected cartridge D into another playback device to play that disc. standby state. Therefore,
According to the automatic playback device of the present invention, consistent operations from disk loading to recovery can be performed automatically, so reliable operation is guaranteed and there is no chance of damage to the disk or the playback device.

(Effects of the invention) As detailed above, according to the information recording medium automatic selection and playback device of the present invention, all consistent operations from disk loading to disk retrieval can be performed automatically, compared to conventional manual playback devices. The playback device is easy to operate, and the playback device can perform continuous playback unattended without requiring excessive operating force from the operator, and when using multiple playback devices, there is no need to worry about accidentally inserting the wrong disk. The disk is not inserted into the sleeve of the cartridge, and a sensor board is provided that has a predetermined pattern that changes according to the rotation angle of the carrier mechanism that transports the cartridge, and the pattern shape of this sensor board is detected. Since the configuration is configured to control the angular position of this carrier mechanism by providing a detection means for detecting the position of the carrier base, the accuracy of the rotation angle of the carrier base is improved, and the mechanism required for sensing the position of the carrier base is made compact. There is.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of the main parts showing the configuration of the information recording medium automatic selection and playback device of the present invention, FIG. 2 is an external perspective view of a cartridge containing a disk applied to the device of the present invention, and FIG. FIG. 4 is a perspective view of the appearance of a disk storage rack; FIG. 5 is a partial plan view of the lower plate of the rack shown in FIG. 4; Fig. 6 is an external perspective view of the leaf spring, Fig. 7 is a shutter mechanism of the disk storage rack, Fig. 6 is an external perspective view showing the closed state, Fig. B is an external perspective view showing the open state, and Fig. 8 is the lock mechanism. indicates the operating status of
Figure A is a side view showing the locked state, Figure B is a side view showing the unlocked state, and Figure 9 shows a carrier mechanism, cartridge insertion/removal means, selection drive mechanism, etc. that constitute a part of the main parts of the drive mechanism of the device of the present invention. FIG. 10 is a partial external perspective view showing the driving section of the carrier mechanism; FIG. 11 is a partial external perspective view showing the specific configuration of the carrier mechanism and cartridge insertion/removal means; Fig. 12 is an exploded perspective view of the sensor assembly, Fig. 13 is a side view of the carrier base shown in Fig. 11 seen from the W direction, Fig. 14 is a cross-sectional view showing the operating state of the clamper, and Fig. 15 is an elevational view. An explanatory diagram showing the arrangement of the sensor pattern that controls the mechanism, Fig. 16 is an explanatory diagram showing the shape of the sensor pattern, and Fig. 17 controls the rotational position of the carrier base, which constitutes a part of the main part of the present invention. FIG. A... Information recording medium automatic selection and playback device, B ₁ ,
B ₂ ... Disk storage rack, C ₁ , C ₂ ... Information recording medium reproducing device, D ... Cartridge, E ... Drive mechanism, F ... Carrier mechanism, G ... Lifting mechanism,
H... Selection drive mechanism, I... Control device, J... Cartridge insertion/removal means, 1... Housing, 2... Sleeve, 3... Lid, 10... Disk, 14... Inlet, 16... ...Disc clamp mechanism, 17...
Lid latching mechanism, 18... Guide section, 19... Turntable, 22... Support ring, 25... Box body, n ₁
~n ₃₁ ... Concave groove, 30 ... Shutter mechanism, 35
... Shutter, 36 ... Protrusion, 37 ... Recessed part, 41 ... Lock mechanism, 40 ... Projection shaft, 45
... Locking piece, 46 ... Protrusion, 48 ... Base unit, 52 ... Base section, 54 ... Carrier base, 55 ... Worm wheel, 59 ... Rotating shaft, 66 ... Timing pulley, 57 ... Pattern disk, 72...Guide shaft, 74...Sensor assembly, 88...Guide groove, 89...Rack gear,
93... board, 94, 101 motor, 96... clamper, 106... push pin, 110... straddle sensor.

Claims (1)

[Scope of Claim for Utility Model Registration] A disk storage rack that accommodates a plurality of cartridges, each consisting of a cartridge body capable of housing a disc-shaped information recording medium on which a signal is recorded, and a lid body that opens and closes the opening of the cartridge body. and an information recording medium reproducing apparatus that inserts and pulls out the cartridge into the apparatus, leaving the lid and the disc-shaped information recording medium in the apparatus, and reproducing the remaining disc-shaped information recording medium; a carrier mechanism equipped with a cartridge insertion/removal means for selecting one cartridge from among a plurality of cartridges stored in the disk storage rack and loading it into the information recording medium reproducing device; and a carrier mechanism for storing the disk. a moving mechanism for moving the rack to a predetermined position and a predetermined position of the information recording medium reproducing device, and a signal recording surface to be reproduced of a disc-shaped information recording medium in the cartridge selected by the carrier mechanism is configured to record the information. a drive means equipped with a motor for rotating the cartridge in a predetermined direction so that the cartridge can be played by a medium playback device;
A sensor plate formed with a predetermined pattern that changes according to the rotation angle of the carrier mechanism is provided on the rotating shaft of the motor of the drive means, and a detection means for detecting the pattern shape of the sensor plate is provided. 1. An information recording medium automatic selection and playback device configured to control the angular position of the information recording medium.