JP3561044B2 - Disc changer device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a multiple-disc type disk changer device capable of storing a plurality of magazines in a magazine storage shelf in multiple stages.
[0002]
[Prior art]
In general, as shown in FIG. 6, a magazine storage shelf 101 capable of storing a magazine M is provided, and a loading means 103 which can be moved up and down is provided next to the magazine storage shelf 101, and each loading unit in the magazine M is provided by the loading means 103. 2. Description of the Related Art For example, a multi-disc type disk changer device for mounting / dismounting a disk D is known. In this type, a photosensor 105 and a light emitter 107 are provided above and below the magazine storage shelf 101. The photo sensor 105 detects whether or not each of the disks D in the magazine M has been correctly taken out / returned. Reference numeral 109 denotes a loading roller incorporated in the loading means 103.
[0003]
By the way, in recent years, a disc changer device that stores a plurality of magazines M in the magazine storage shelf 101 in multiple stages has been proposed. In this type, if, for example, six disks D are stored in the magazine M, the number of magazines x six disks D will be stored, and the storage efficiency will be lower than that of the conventional one. It becomes an excellent disc changer device.
[0004]
[Problems to be solved by the invention]
However, if a plurality of magazines M are to be stored in multiple stages, the height of the magazine storage shelf 101 is generally high. When the height of the magazine storage shelf 101 is increased, the distance between the photosensor 105 and the light-emitting body 107 is increased by that much, so that there is a problem that the malfunction of the detection of the disk D easily occurs.
Further, in the magazine storage shelf 101 capable of storing a plurality of magazines M, when any of the magazines M is operated without being mounted, a space is created in the unmounted portion, and disturbance light is generated from the space. Penetrates, and the above-described photosensor 105 easily malfunctions.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the related art and to provide a disc changer device in which a plurality of magazines are stored and in which a sensor does not easily malfunction.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, a magazine storage shelf that stores a plurality of magazines is provided, and loading means that moves up and down next to the magazine storage shelf is provided, and each disk in each magazine can be taken out / returned by the loading means. In the disc changer device configured as described above, the loading means divides at least a loading roller capable of taking out / returning the disc and at least a resilient roller portion of the loading roller at a substantially central portion in the axial direction. And a sensor for detecting that a disk in each of the magazines has been taken out / returned.
[0007]
According to a second aspect of the present invention, in the first aspect, the sensor is a photo sensor, and a light blocking member for blocking disturbance light is provided near the photo sensor. is there.
[0009]
[Action]
According to the first aspect of the present invention, a sensor for detecting that a disk in each magazine has been taken out / returned is provided in the loading means which moves up and down. Regardless of the height of the magazine storage shelf, for example, the distance between the sensor and the light emitter can be set short. Therefore, the number of erroneous detections is reduced, and the removal / return of the disk is accurately detected.
Further, at least the elastic roller portion of the loading roller is divided into two parts at a substantially central portion in the axial direction, and the sensor is provided between the two divisions.
[0010]
According to the second aspect of the present invention, since the light blocking member for blocking the disturbance light is provided near the photo sensor, even if the disturbance light enters the vicinity of the photo sensor in the vicinity, the disturbance light is not affected. Light is shielded, and false detection is reduced. Therefore, the removal / return of the disk is more accurately detected.
[0012]
【Example】
Hereinafter, an embodiment of a disc changer device according to the present invention will be described with reference to the accompanying drawings.
First embodiment In FIG. 1, reference numeral 1 indicates a disc changer device. The disc changer device 1 has a main body 3 and a front cover 5, and the front cover 5 is slidable left and right on the front surface of the main body 3 in the drawing. In FIG. 1, the front cover 5 covers the right half of the main body 3, and a magazine storage shelf 11 is provided on the left half of the main body 3. The magazine storage shelf 11 is partitioned into three upper and lower tiers, and a magazine M can be stored in each of the tiers 11a, 11b, and 11c. Each magazine M can store six disks D. According to this, in this apparatus, the number of magazines M × 6 = 18 disks D can be stored. In the example of FIG. 1, the magazine M is mounted on the lowermost stage 11a and the uppermost stage 11c, and is not mounted on the center stage 11b.
[0013]
To briefly explain the configuration of the main body 3, eject buttons E1 to E3 are provided below the magazine storage shelf 11, and the eject buttons E1 to E3 correspond to the respective steps 11a, 11b, and 11c. When the eject button E1 is pressed, the magazine M in the lowermost stage 11a is ejected. An operation panel 13 is provided on the right half of the main body 3 covered by the front cover 5, and an indicator 15 is provided on the operation panel 13. In FIG. 1, the indicator 15 is visually recognized through a window 17 provided in the front cover 5. In FIG. 1, the index S of the indicator 15 indicates the sign of E3, which indicates that the magazine M at the top 11c is at the eject operation position. 19 is a handle.
[0014]
Referring to FIG. 2, loading means 21 is provided next to magazine storage shelf 11. The loading means 21 can move up and down between the lowermost stage 11a and the uppermost stage 11c of the magazine storage shelf 11, that is, it can move in the disk arrangement direction in the magazine.
The loading means 21 is provided with upper and lower two loading rollers 23 and 25 and a disk player (not shown). The disk player detects a turntable (not shown) and a signal on a rotating disk, respectively. Pickup. The operation of the pickup records and reproduces sound or video on the disk D.
[0015]
According to this embodiment, the photo sensor 31 and the light emitter 33 are provided above and below the loading means 21 to detect that the disk D in the magazine M has been taken out / returned.
[0016]
Next, the operation of the first embodiment will be described.
In FIG. 2, first, when the disk D accommodated in the magazine M at the lowermost stage 11a is designated and a take-out signal of the disk D is output, the loading means 21 moves up and down, and the loading means 21 It is moved to a position where the disk D can be taken out / returned. Next, the disk D is slightly pushed out of the magazine M through a mechanism (not shown) in the magazine M.
[0017]
The extruded disk D is sandwiched between the loading rollers 23 and 25 of the loading means 21, and is sent into the loading means 21 by the loading rollers 23 and 25.
When the disk D is slightly pushed out of the magazine M, the photo sensor 31 operates to detect removal / return of the disk D. That is, the photo sensor 31 is always receiving the light from the light emitting body 33, and when the disk D passes on the optical path, the light is blocked and the removal / return of the disk D is detected. Specifically, the sensor 31 detects whether the disk D is actually loaded in the magazine M, or whether the disk D pulled out of the magazine M is returned to the magazine M normally. Used for The removal / return of the disk D is detected, and the control for using the detection signal is the same as in the related art.
[0018]
According to the first embodiment, since the photo sensor 31 is provided on the loading means 21 on the ascending / descending side, regardless of the height of the magazine storage shelf 11 on the fixed side, the photo sensor 31 and the light emitting body 33 Can be shortened almost in the same manner as the conventional one. Since the distance L between the photosensor 31 and the light emitting body 33 can be shortened, the disk D can be accurately detected.
Second embodiment In FIG. 2, the magazine M is not mounted on the center stage 11 b of the magazine storage shelf 11. For this reason, a space (hatched portion) is formed in the center stage 11b, and disturbance light enters through a magazine insertion opening (not shown) and this space, leading to a malfunction of the photo sensor 31.
Referring to FIG. 3, in the second embodiment, a light shielding member 35 for shielding disturbance light that enters through the space is provided.
The light blocking member 35 is provided near the photo sensor 31 so that disturbance light does not enter the photo sensor 31.
Third Embodiment Referring to FIGS. 4A and 4B, the upper loading roller 123 is divided into two parts at a substantially central portion in the axial direction, and a predetermined space is provided between the two divided roller parts 123a and 123b. 130 is created. The photo sensor 31 is arranged in the space 130.
[0019]
According to the third embodiment, since the photo sensor 31 is arranged in the space 130, as shown in FIG. 4B, when the apparatus is viewed from the side, the loading roller 123 and the photo sensor 31 overlap, and the Accordingly, the height H of the loading means 21 can be reduced. According to this, the loading means 21 becomes compact in the height direction, and the distance L between the photosensor 31 and the light emitting body 33 is further reduced, so that accurate detection of the disk D becomes possible. Further, the depth of the loading means 21 (the length in the disk transport direction) is also reduced.
Fourth embodiment In order to obtain substantially the same effect as in the third embodiment, as shown in FIG. 5, only the elastic roller portion 223A of the loading roller 223 is divided into two at substantially the center in the axial direction. The photo sensor 31 may be provided between the two elastic roller portions 223a and 223b. According to this, as in the third embodiment, the loading means 21 is compact in the height direction and the depth direction, and the distance L between the photosensor 31 and the light emitting body 33 is further reduced. Accurate detection becomes possible.
[0020]
【The invention's effect】
According to the first aspect of the present invention, a sensor for detecting that a disk in each magazine has been taken out / returned is provided in the loading means which moves up and down. Regardless of the height of the magazine storage shelf, for example, the distance between the sensor and the light emitter can be shortened, so that erroneous detection is reduced and the disk can be accurately detected.
Further, at least the elastic roller portion of the loading roller is divided into two parts at substantially the center in the axial direction, and the sensor is provided between the two parts. Therefore, the height of the loading means can be reduced, and the size can be reduced. it can.
[0021]
According to the second aspect of the present invention, since the light shielding member for shielding the disturbance light is provided near the photosensor, erroneous detection due to the disturbance light is reduced, and the disk can be accurately detected. .
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a disc changer device according to the present invention.
FIG. 2 is a view showing a main part of the embodiment.
FIG. 3 is a diagram showing a main part of another embodiment.
FIG. 4 is a diagram showing a main part of still another embodiment.
FIG. 5 is a perspective view showing a main part of still another embodiment.
FIG. 6 is a diagram showing an example of a conventional disc changer device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Disc changer apparatus 11 Magazine storage shelves 11a, 11b, 11c Step 21 Loading means 23, 25 Loading roller 123 Loading roller 223 Loading roller 31 Photo sensor 33 Light emitting body D Disk M Magazine

Claims (2)

A magazine storage shelf capable of storing a plurality of magazines in multiple stages is provided, and loading means is provided adjacent to the magazine storage shelf so as to be movable in the direction in which the disks are arranged in the magazine. In a disc changer device configured to be able to return / return,
The loading means includes a loading roller capable of taking out / returning a disk, and at least an elastic roller portion of the loading roller which is divided into two at a substantially central portion in an axial direction, and is provided between the two divided parts. A sensor for detecting that the disk has been ejected / returned,
A disc changer device comprising: 2. The disc changer device according to claim 1, wherein the sensor is a photo sensor, and a light blocking member for blocking disturbance light is provided near the photo sensor.

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