JPH11144360A - Auto-changer for information equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive auto changer device for information equip ment, such that players can be positioned and connected at a position correspond ing to each shelf of a magazine by means of a simple structure using a small number of sensors. SOLUTION: In accordance with a magazine 34 in which a recording medium 32 is stored in each shelf, a player is supported by a raising/lowering mechanism and driven by a driving mechanism so that the raising/lowering mechanism is moved vertically only by the distance between stop positions corresponding to the mutual distance between the shelves, the driving mechanism is controlled by a control means, with a state as an origin in which the player 36 reaching the reference position is detected by sensor 124 and is which the driving mechanism reaching the stop position is also detected by the sensor, and the player 36 is controllably moved to the position corresponding to the desired shelf of the magazine 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an automatic changer device for playing out or recording by extracting a selected one of a plurality of recording media stored in an information device.

[0002]

2. Description of the Related Art In an information apparatus, a plurality of recording / reproducing mini-discs (hereinafter referred to as MDs) each containing a recording medium disk in a cartridge is stored in a magazine, and a required MD is selected from among them. M to read information such as music
There is a D changer.

As shown in FIG. 12, the MD changer is provided with a required MD 1 from a magazine 10 in which a plurality of MDs 12 are stored in a stacked state.
2 is selected, and the player unit 14 is moved up and down by the elevator 24 to the step position where the selected MD 12 is stored, and positioned. Then, the selected MD1 is displayed on the player section 14.
2 is pulled out in the direction of arrow A, and the turntable 16
Is raised in the direction of arrow B, and the ring portion 18 at the center of the disc 20 of the MD 12 is sucked onto the turntable 16, and the MD disc 2 is integrated with the turntable 16.
The information is read by the optical pickup 22 or written by an optical element (not shown).

Conventionally, in such an MD changer, a plurality of MDs 12 accommodated in a plurality of shelves of a magazine 10 are used.
In order to pull out the MD 12 selected from among them, the control operation is performed such that the player unit 14 is moved up and down by the elevator 24 to the step position accommodating the selected MD 12, and is positioned and held.

For this reason, first, the current position where the player section 14 is placed before the operation is detected, and then, how many steps the step position containing the selected MD 12 is located above or below the current position. And the elevator 24 starts the movement operation of the player unit 14 by the elevator 24. Next, it is detected that the player unit 14 has reached the step position accommodating the selected MD 12, the elevator 24 is stopped, and the player unit 14 is stopped. Position the magazine 10 at the required step position.

Next, the selected MD 12 is transferred to the player unit 14.
Pull up, play, or record. After this MD12
Is returned to the original shelf of the magazine 10 and stands by for the reproduction or recording operation of the next selected MD 12.

[0007]

In an information device such as an MD changer as described above, the selected M
In order to control the movement of the player unit 14 by the elevator 24 to the position of D12, for example, M
In some cases, a sensor having a different configuration that generates an individual signal is arranged corresponding to each of the storage shelves of D12 to detect the current position of the player unit 14 and the position at which the elevating operation should be stopped.

In this case, sensors having the same number as the maximum number of MDs 12 that can be accommodated in the magazine 10 and having mutually different configurations are required, a large number of expensive parts must be used, and the configuration is complicated, and the product becomes complicated. There was a problem that it became expensive.

In view of the above, an object of the present invention is to provide a new automatic changer device for information equipment which can be simply manufactured using a small number of sensors and can be manufactured at low cost.

[0010]

According to a first aspect of the present invention, there is provided a magazine for accommodating each recording medium in a shelf, and an elevating mechanism for supporting a player in a range corresponding to each shelf of the magazine. , A drive mechanism that drives the elevating mechanism by the distance between the stop positions corresponding to the distance between the shelves, and a sensor that detects that the player has reached the reference position, and that the drive mechanism has reached the stop position. Control means for controlling the drive mechanism with the state where the sensor is detected by the sensor as the origin, driving the elevating mechanism interlocked with this, and controlling the movement of the player to a desired shelf position corresponding to the magazine. .

With the above-described configuration, the player can be positioned and connected to the position corresponding to each shelf of the magazine with a simple configuration using a small number of sensors.

A magazine for accommodating each of the recording media according to the second aspect of the present invention in a shelf, a lifting mechanism for supporting a player so as to be able to move up and down in a range corresponding to each shelf of the magazine, and a lifting and lowering mechanism. A drive mechanism that drives only the distance between the stop positions corresponding to the distance between each other, a player detection switch that detects the player moved to the reference position by the lift mechanism, and a cam mechanism that drives the lift mechanism in the drive mechanism A detection switch that detects that the stop position has been reached, a detection signal of the player detection switch, and a detection signal of the detection switch are simultaneously set as an origin. And control means for driving the drive mechanism until the detection signals of the detection switches are received by the number corresponding to the number of shelf stages in between.

With the above-described configuration, the control means properly detects the state of the origin in the control operation by using two switches such as the detection switch and the player detection switch, and based on the output signal of the detection switch. Since the control can be easily and reliably performed, the configuration can be simplified over the entire apparatus.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic changer device for information equipment according to the present invention will be described below with reference to FIGS. In FIG. 1, reference numeral 30 denotes a case of an MD changer as an information device, in which a magazine 34 for storing an MD 32 as a recording medium and a player 36 are arranged. .

In this example, the magazine 34 has six MDs.
32 are stacked and stored in six stages.
The magazine 34 is configured to insert each MD 32 from the outside in the direction from the front to the back of the paper of FIG. 1 and to pull out the MD 32 in the opposite direction. In the magazine 34, among the MDs 32 stored therein, the MD 32 selected for information reading or writing is pulled out from the magazine 34 toward the player 36, and is pushed into the magazine 34 again after its use. It is configured to be stored.

The player 36 uses the elevator 3
It is configured to be moved to a position corresponding to each of the six MD storage positions 4 by a lifting operation. The player 36 is configured such that a cradle 40 is mounted on a frame 38 so as to be able to move up and down. The pedestal 40 is mainly provided with a positioning projection 42, a turntable 44, and an optical pickup (not shown).

The elevator configured to move the player 36 up and down has a lifting mechanism that supports the player 36 so that the player 36 can move up and down, a driving mechanism that drives the lifting mechanism, and controls the operation of the driving mechanism. The control unit includes a control unit (not shown).

As shown in FIGS. 3 and 4, the elevator mechanism as the elevator for the player 36 is arranged on both sides of the frame of the MD changer body, and mainly comprises a guide side plate 46, a drive link 48, And the driven link 50. As shown in FIGS. 3 and 8, the one guide side plate 46 constitutes a side plate portion corresponding to the player 36 in the frame of the MD changer, and is formed in a substantially rectangular flat plate shape. An elevating guide groove 52, which is a linear narrow groove along the elevating direction of the player 36, is formed near the side.

Further, a shaft support hole 54 is formed at a predetermined position in the guide side plate 46 near the longitudinal center of the elevating guide groove 52. An arc-shaped guide groove 56 having a shaft support hole 54 as a center is formed at a side end of the guide side plate 46 opposite to the elevation guide groove 52, and a length direction of the guide groove 56 is set. A slide groove 58 communicating with the central portion and extending linearly toward the shaft support hole 54 therefrom is formed.

It is to be noted that the other guide side plate 46 (not shown) opposing the one guide side plate 46 shown in FIGS.
Also, the same shape of the elevating guide groove 52, the shaft support hole 54, the guide groove 56, and the slide groove 58 are formed at corresponding predetermined positions. Also, as shown in FIG. 8, the guide side plates 46 on both sides of the frame are used for chucking the turntable 44 in the insertion groove 60 and the MD 32 used for interlocking the lifting mechanism and the driving mechanism, or a magazine for the player 36. 3
Various openings 62 are drilled which are used to hold the four selected MDs 32 in the shelf position.

As shown in FIG. 3, the guide side plate 46 has
The drive link 48 is axially attached to the shaft support hole 54 by a shaft pin 64. That is, as shown in FIG.
Reference numeral 8 denotes a plate member formed in a deformed pentagonal shape, and a shaft hole 66 is formed near a right-angled corner thereof.
The drive link 48 is axially mounted by aligning the shaft support hole 54 and the shaft pin 64.

The lower corner portion of FIG. 9, which is adjacent to the corner portion of the drive link 48 having the shaft hole 66, extends in a substantially rectangular shape, and is provided with a rectangular interlocking groove 68 having one open side. ing. Further, a through hole 70 is formed in the corner portion of the drive link 48 farthest from the shaft hole 66, and a guide member 72 slidably facing the guide groove 56 is attached as shown in FIG.

As shown in FIG. 9, an intermediate position on a line connecting the shaft support hole 54 and the shaft hole 66 of the drive link 48 is partially formed in a circular trapezoidal shape, and a shaft hole 74 is formed at the center thereof. I have. The drive link 48 is bent stepwise along a broken line portion 76 in order to adjust the distance between the drive link 48 and the guide side plate 46.

The drive link 48 formed as described above
The guide member 72 is mounted so that the guide member 72 can freely rotate around the shaft pin 64 by a predetermined angle when the guide member 72 slides in the guide groove 56.

As shown in FIGS. 3 and 5, a driven link 50 is mounted between the guide side plate 46 and the drive link 48. As shown in FIG. 10, the driven link 50 is formed in a long plate shape that is bent substantially in a shape of a letter from an intermediate portion. A sliding support hole 78, which is a long hole, is formed at one end of the driven link 50, and a shaft hole 80, which is a round hole, is formed at the other end. An intermediate shaft hole 82 is formed at a predetermined position near the portion.

The driven link 50 thus formed is
The intermediate shaft hole 82 and the shaft hole 74 of the drive link 48 are aligned with each other, and the shaft pin 84 is inserted and fitted into these holes. At the same time, a slide guide member 86 is protruded from the support shaft hole 80 of the driven link 50, and this slide guide member 8 is provided.
6 is slidably inserted into the slide groove 58 of the guide side plate 46 and mounted.

The support pins 8 are inserted from the outside of the frame of the magazine 34 into the elevating guide grooves 52 of the guide side plate 46.
8 is slidably inserted, and further, a support pin 88 is slidably inserted into a slide support hole 78 of the driven link 50, and one end of the support pin 88 is axially mounted on the frame 38 of the player 36. The guide member 72 protruding from the drive link 48 is slidably inserted into the elongated hole 89 formed in the frame 38 of the player 36 after passing through the guide groove 56.

With this configuration, the player 36 is supported on both sides of the frame 38 corresponding to the respective guide side plates 46 by the support pins 88 and the guide members 72, respectively. Then, the guide member 72 moves up and down in accordance with the operation of the drive link 48 rotating around the shaft pin 64.
In synchronization with this operation, the driven link 50, whose intermediate portion is pivotally mounted on the drive link 48 with the shaft pin 84, moves relatively to the slide groove 58 of the slide guide member 86 in accordance with the rotation operation of the drive link 48. . This operation allows the driven link 50
Pivots around the shaft pin 84 to move the support pin 88 up and down from the bottom surface of the lifting guide groove 52 at the same level as the guide member 72. Therefore, the player 36 integrally formed with the frame 38 is moved from the lowermost position shown in FIGS. 1, 3, and 4 while maintaining a constant posture with respect to the bottom surface of the frame, as shown in FIGS. The elevating operation is performed up to the uppermost position shown in FIG.

Next, a description will be given of a driving mechanism for driving and operating the elevating mechanism mounted on the player 36. As shown in FIGS. 4 and 6, the drive mechanism includes a rotation motor 90 serving as a drive source, a reduction gear 94 linked to the rotation of an output shaft 92 thereof, and a cam gear 96 linked to the reduction gear 94. When,
In conjunction with the cam gear 96, the drive link 48 of the lifting mechanism
And a follower interlocking member 98 that connects to the

The worm 100 is fixed to an output shaft 92 of the rotary motor 90. This warm 100
The worm wheel 94A of the reduction gear 94 is meshed with. This reduction gear 94 is a large-diameter worm gear 94.
A small diameter spur gear 94B concentric with A is integrally formed.
The small-diameter spur gear 94B is meshed with an external gear 96A formed on a peripheral portion of the outer peripheral portion of the substantially disc-shaped cam gear 96 on the bottom surface side of the frame with respect to a half in the thickness direction.

At the same time, at the six predetermined positions in the circumferential portion adjacent to the external gear 96A in the thickness direction on the outer peripheral portion of the cam gear 96, projecting edges 102 constituting cam position detecting means are formed. Have been.

A cam groove 104 having a substantially spiral shape is formed in a flat plate portion on the bottom surface side of the frame of the cam gear 96 serving as a prime mover of the cam mechanism. A follower interlocking member 98 that is a follower is interlocked with the cam groove 104.

As shown in FIGS. 4 and 11, the follower interlocking member 98 is formed in a light weight structure by forming a flat plate into a substantially triangular planar shape and forming a substantially small triangular opening 106 at the center thereof. Have been. Guide pins 108 and 110 are projected from each of the triangular apexes of the follower interlocking member 98, respectively. As shown in FIGS. 3 and 4, guide pins 108 and 110 are respectively inserted in three parallel slit-shaped guide grooves 112 formed at predetermined positions on the bottom surface of the frame.
Is slidably inserted so as not to fall off, so that the follower interlocking member 98 is slidably mounted in the direction of arrow C in FIG.

Further, the cam gear 96 of the follower interlocking member 98
The guide pin 108 provided at the apex corresponding to immediately below the guide groove 108 has a tip extending through the guide groove 112 and slidably inserted into the cam groove 104. Thereby, the cam gear 96
When the cam groove 104 rotates, the cam groove 104
Is moved in the direction of arrow C in FIG. 4, so that the follower interlocking member 98 is operated to move to a position corresponding to the rotation angle of the cam gear 96.

At portions of the follower interlocking member 98 corresponding to both lateral sides of the bottom surface of the frame body 38, there are provided locking pieces 114 each having small and short pieces erected at right angles. An operation pin 116 is protruded from each of the locking pieces 114, and the operation pin 116 is attached to each of the guide side plates 46.
Are slidably inserted into the interlocking grooves 68 respectively.

The driving mechanism configured as described above drives the rotary motor 90 and drives the cam gear 9 via the reduction gear 94.
6 is rotated by a required angle, and the guide pin 10 in the cam groove 104 is rotated.
8 is driven. Accordingly, the follower interlocking member 98 integrated with the guide pin 108 moves in the direction of arrow A in FIG.
, The player 36 is moved up and down to a height position corresponding to the position of the guide pin 108 with respect to the cam groove 104 of the cam gear 96. In this manner, the player 36 can be moved from the lowermost position shown in FIGS. 1, 3, and 4 to the uppermost position shown in FIGS. 2, 5, and 6.

Next, a description will be given of means for controlling the driving of the driving mechanism and controlling the elevation of the player 36 by the elevating mechanism. This control means includes a detection signal of a cam position detection means for detecting a predetermined rotation position of the cam gear 96,
The rotation motor is driven by a control command processed and generated by the central control device using the detection signal of the reference position detection means.

When the cam gear 96 is turned, the six protruding edges 102 of the cam gear 96 are detected by the follower 1.
The detection switch 120 is configured to be turned on via the switch 18.

For this reason, the six protruding edge portions 102 are formed by the cam gear 96 in each state in which the driving mechanism drives the elevating mechanism to position the player 36 at each shelf corresponding position for accommodating each MD 32 of the magazine. Are arranged to detect each of the positions. This means that the position at which the player 36 moves up and down is determined by the relative positional relationship between the cam groove 104 as a driving joint and the guide pin 108 as a driven joint inserted into this groove.

Therefore, when the player 36 is in each of the MDs of the magazine,
The guide pin 108 is provided at each stop position on the cam groove 104 when it matches the six step positions of the 32 storage shelves.
Is located, the protruding edge portion 102 is configured to turn on the detection switch 120 via the follower 118.

The follower 118 of the cam position detecting means
As shown in FIG. 4, a sliding contact protrusion 118 </ b> A which is in sliding contact with the outer circumference provided with the protruding edge portion 102 of the cam gear 96 protrudes from one long side of the long oblique side as shown in FIG. 4. The detection switch 12 is located at the other end of the hypotenuse.
A contact portion 118 </ b> B with zero is provided. Further, a corner bearing 118C facing the long oblique side of the follower 118 is provided, and a shaft pin is passed through a shaft hole of the bearing 118C, and the substrate is fixed to the bottom plate of the frame. Is being worn.

The detection switch 120 operated by the follower 118 generates an ON signal when the detection rod 122 is pushed in, and transmits the ON signal to a central controller (not shown) (which may also be used as a CPU for recording signal processing). It is configured to be. Further, the detection switch 120 urges the detection rod 122 so as to protrude to a predetermined length. Therefore, as shown in FIG. 4, in the assembled state in which the tip of the detection rod 122 is pressed against the contact portion 118B of the follower 118, the detection rod 122 urges the follower 118 to rotate in the direction of arrow D, and the sliding contact is made. The projection 118A is always in contact with the outer peripheral portion of the cam gear 96 having the protruding edge portion 102.

In the cam detecting means constructed as described above, the follower 118 is rotated each time the cam gear 96 is rotated and the respective protruding edge portions 102 on the outer periphery thereof press the sliding contact projections 118A, and the detection rod 122 is pushed. The detection switch 120 is turned on.

As a reference position detecting means of the player 36 for controlling the elevating operation of the player 36 in combination with the cam position detecting means, a player detecting switch 124 as shown in FIGS. 1, 3 and 4 is provided. Frame bottom plate 128
It is provided at an upper predetermined height position.

The player detection switch 124 generates an ON signal when a detection rod 126 urged to extend a predetermined length in the protruding direction is pressed, and this ON signal is transmitted to a central control unit (not shown). (It may be shared with the processing CPU). As shown in FIG. 1, the player detection switch 124 allows the player 36 to accommodate the MD 32 in the magazine 34.
The detection bar 126 is pushed when it is located at the lowest position (the stage closest to the bottom plate 128) of the shelf stages, and is located at a height position where an ON signal is generated.

The control operation performed by the central control unit using the above-described cam position detecting means and the reference position detecting means of the player 36 will be described with reference to the flowchart of FIG.

First, in step 130, the process waits until the power of the autochanger device is turned on. When the power is turned on, the process proceeds to step 132. In step 132, it is determined whether the detection switch 120 of the cam position detection means is on and the player detection switch 124 is on at the same time.
The detection switch 120 and the player detection switch 124
Is turned on at the same time, which means that the player 36 is located at a position corresponding to the storage shelf of the lowermost MD 32 of the magazine 34 and is connected. This step 13
2, the detection switch 120 and the player detection switch 12
If neither of them is in the ON state, the player 36 is located above the storage shelf of the lowest MD 32 of the magazine 34, and the process proceeds to step 134.

In step 134, the rotary motor 90 of the drive mechanism is driven to drive the cam gear 9 through the reduction gear 94.
6 is rotated to the position shown in FIG. 4, and the follower interlocking member 98 is moved to the position shown in FIG. Then, the player 36 is moved by the elevating mechanism interlocked with the follower interlocking member 98 in FIG.
And is lowered to a position corresponding to the lowermost position of the magazine 34 shown in FIG.
4 are simultaneously turned on, and the process returns to step 132.

In step 132, the detection switch 120
When it is determined that both the player detection switch 124 and the player detection switch 124 are turned on at the same time, the routine proceeds to step 136, where the central control device executes a player position initialization process. This is because the detection switch 120 and the player detection switch 12
4 is simultaneously turned on, the initialization is performed with the origin of the player 36 as an origin. After this processing, the process proceeds to step 138.

In step 138, the MD3 stored in the six shelves in the magazine 34 of the autochanger device is read.
2, the MD 32 stored in any of the shelves
Wait until a choice is made. Then, upon receiving an MD selection command for designating the number of the shelf of the MD 32 to be put on the player 36, the process proceeds to step 140 to perform player positioning processing.

In the player positioning process, first, it is determined how many shelves are located with the MD 32 selected by the selection command as the origin with the lowest shelf of the magazine 34 as an origin. Next, the rotation motor 90 is driven to raise the player 36, and the ON signal of the detection switch 120 of the cam position detection means is counted by the number of stages from the bottom to the shelf containing the selected MD 32, and the count value is counted. When the number reaches the number of steps, the rotation motor 90 is stopped, and the player 36 is positioned and connected to a position corresponding to the shelf for storing the selected MD 32 in the magazine 34.

In this state, the MD 32 selected from the magazine 34 is pulled out onto the player 36 and set.
Reproduce or record, and then insert MD32 into Magazine 3
4 and return to step 142. In step 142, it is determined whether or not the power is off. If the power is off, the process ends. If the power is not off, the process returns to step 138 and waits for an MD selection command.

When the MD selection command comes again,
In the next step 140, a relative positional relationship is determined such as how many levels are higher or lower relative to the level of the shelf selected in the magazine 34 in which the currently selected MD 32 is stored. Then, control is performed to move the player 36 upward or downward by the number of relative shelf differences.

It should be noted that the player detection switch 124 may be arranged so as to correspond to a shelf other than the lowest one in the magazine 34. In this case, the player 36 is moved, and the detection switch 120 and the player detection switch 124
When both are turned on at the same time, the central control device may be configured to perform initialization processing as a shelf position where the player detection switch 124 is arranged.

[0055]

According to the automatic changer apparatus for information equipment of the present invention, the recording medium is stored in each shelf of the magazine, and the elevating mechanism for supporting the player so as to be able to move up and down is provided at the distance between the shelves. Drive by the drive mechanism to move up and down by the distance between the corresponding stop positions, the sensor detects that the player has reached the reference position, and the sensor detects that the drive mechanism has reached the stop position as the origin. The drive mechanism is controlled by the control means to move the player to a position corresponding to a desired shelf in the magazine, so that the player can be moved to a position corresponding to each shelf in the magazine with a simple configuration using a small number of sensors. Inexpensive products can be provided that can be connected by positioning.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a state in which a player as an example of an MD changer according to an embodiment of an information device autochanger device of the present invention is at a lowermost position.

FIG. 2 is a vertical cross-sectional view of a state in which a player exemplifying an MD changer according to the embodiment of the information device autochanger device of the present invention is at the uppermost position.

FIG. 3 is a vertical cross-sectional view of a state in which a player exemplifying a mechanism of an MD changer according to the embodiment of the information device autochanger device of the present invention is at a lowermost position;

FIG. 4 is a cross-sectional view of a state in which a player exemplifying a mechanism of an MD changer according to an embodiment of the information device autochanger device of the present invention is at a lowermost position;

FIG. 5 is a vertical cross-sectional view of a state in which a player exemplifying a mechanical section of an MD changer according to an embodiment of the information equipment autochanger device of the present invention is at the uppermost position.

FIG. 6 is a cross-sectional view of a state in which a player exemplifying a mechanical unit of an MD changer according to an embodiment of the information device autochanger device of the present invention is at an uppermost position;

FIG. 7 is a flowchart for explaining control means of the MD changer according to the embodiment of the automatic changer device of the information equipment of the present invention.

FIG. 8 is a front view showing a guide side plate of the MD changer according to the embodiment of the automatic changer device for information equipment of the present invention.

FIG. 9 is a front view showing a drive link of the MD changer according to the embodiment of the information device autochanger device of the present invention.

FIG. 10 is a front view showing a driven link of the MD changer according to the embodiment of the automatic changer device for information equipment of the present invention.

FIG. 11 is a front view showing a follower interlocking member of an MD changer according to the embodiment of the automatic changer device for information equipment of the present invention.

FIG. 12 is a perspective view of an essential part illustrating a schematic configuration of a conventional MD changer.

[Explanation of symbols]

 32 MD 34 Magazine 36 Player 38 Frame 46 Guide Side Plate 48 Drive Link 50 Follower Link 52 Elevating Guide Groove 86 Sliding Guide Member 90 Rotary Motor 94 Reduction Gear 96 Cam Gear 98 Follower Interlocking Member 102 Protrusion 104 Cam Groove 118 Follower 120 detection switch (sensor) 124 player detection switch (sensor) 128 bottom plate

Claims (2)

[Claims] A magazine for accommodating each recording medium in a shelf; a lifting mechanism for supporting a player so as to be able to move up and down in a range corresponding to each shelf of the magazine; A drive mechanism that drives only the distance between the stop positions corresponding to the distance, and a state where the sensor detects that the player has reached the reference position and that the sensor has detected that the drive mechanism has reached the stop position. Control means for controlling the drive mechanism as the origin, and controlling the movement of the player to a desired shelf position corresponding to the magazine by driving the elevating mechanism interlocked with the drive mechanism, Autochanger device. 2. A magazine for accommodating each recording medium in a shelf, a lifting mechanism for supporting a player so as to be able to move up and down in a range corresponding to each shelf of the magazine, and A drive mechanism that drives only the distance between the stop positions corresponding to the distance, a player detection switch that detects the player moved to the reference position by the elevating mechanism, and a cam mechanism that drives the elevating mechanism in the driving mechanism. A detection switch that detects that each stop position state has been reached, a detection signal of the player detection switch, and a detection signal of the detection switch are simultaneously received, and the origin and the required recording medium are accommodated. Control means for driving the driving mechanism until a detection signal of the detection switch is received by a number corresponding to the number of shelves between the shelves; Autochanger device information device characterized by having a.