JPH08321120A - Disk reproducing device - Google Patents

Abstract

PURPOSE: To provide a disk reproducing device which can select a desired disk from among a large number of disks, such as compact disks, etc., and can quickly reproduce sounds from the disk. CONSTITUTION: A housing section 2 and a reproducing section 3 are provided in the main body 1 of a disk reproducing device and the housing section 2 is constituted so that a magazine 4 housing a large number of recording media can be loaded in the section 2. The housing section 2 is composed of an actuating area 21 adjacent to the reproducing section 3 and housing areas 22 and 23 respectively provided on and under the reproducing section 3. The magazine 4 can be moved in the vertical direction in the area 21 and can be delivered and received between the upper and lower parts of the area 21 and the areas 22 and 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc reproducing apparatus having a function of selecting a desired recording medium from a large number of disc-shaped recording media such as compact discs (hereinafter also referred to as discs) and reproducing it. .

[0002]

2. Description of the Related Art In recent years, disc-shaped media such as compact discs and digital video discs are known as recording media for recording audio information and video information. By the way, there is a disc reproducing apparatus such as a CD player for reproducing the recorded information of the recording medium, which has a function of taking out one recording medium selected from a large number of recording media and reproducing it. For example, a disc reproducing apparatus of that kind is known as shown in FIG.

This disc reproducing apparatus comprises a main body H having a storage portion G and a reproducing portion S, and a magazine M in which discs D as disc-shaped recording media are stored in multiple stages. A magazine M can be loaded in G, and a reproducing unit S is provided with a turntable T that rotates a disc D and a pickup (not shown) that operates along the rotating disc D and sequentially reads the recorded information of the disc D. ing.

In particular, in the main body H, a lift truck F that can move up and down is provided.
And a pair of feed rollers R,
A clamp board C and a push rod (not shown) are provided. The turntable T is provided on the bottom side of the main body H at a position facing the clamp board C, and the pickup is provided adjacent to the turntable T so as to be horizontally reciprocable.

According to this disc reproducing apparatus,
When the desired disk D is selected, the lift truck F moves up to a predetermined position, the push rod is projected to expose a part of the desired disk D from the magazine M, and the exposed disk D is exposed. A part of the feed rollers R is sandwiched and pulled into the lift truck F.

Thereafter, the lift truck F descends with the disc D sandwiched by the feed rollers R, and eventually the disc D is supported by the turntable T.
The pin e is pressed by the shaft g to open the pair of feed rollers R, and at the same time, the rear end side of the arm y is pressed by the shaft m, so that the clamp disk C at the front end is moved to the disk D. It comes to crimp.

Thus, the disk D sandwiched between the clamp board C and the turntable T rotates, and this disk D
The recorded information of (1) is read and reproduced by a pickup operating along the disc D.

[0008]

However, according to the above-mentioned conventional disk reproducing apparatus, since the lift truck operates with respect to the magazine, the apparatus tends to be large. Further, since the desired discs can be taken out from the magazine by controlling the operation of the lift truck, the number of discs that can be selected is limited.

That is, the number of discs accommodated in the magazine is generally about 6, and according to the structure in which the lift truck is operated on the basis of the magazine, the discs that can be selected are inevitably accommodated in the magazine. Will be limited by the allowable amount of.

Also, when exchanging the disc to be reproduced,
There is a drawback that it takes time to regenerate because the lift truck must be reciprocated between the reproducing unit and the magazine.

[0011]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention has as its main object to enable selection of a larger number of discs. As means for achieving the object, a storage section and a reproducing section are provided. A main body having a disk, and a magazine in which disc-shaped recording media are stored in multiple stages, a magazine can be loaded in the storage portion of the main body, and a turntable for rotating the recording medium in the reproducing portion and its rotation. A disc reproducing apparatus that operates along a recording medium inside and is provided with a pickup that sequentially reads recorded information of the recording medium, wherein the storage section is adjacent to the reproducing section and has a movable operation region in which a magazine is movable up and down. It is formed by securing a storage area for the magazine that is connected to the operation area above and below the reproduction section, and moves the magazine up and down in the operation area of the storage section. Lifting means is provided that also is intended to provide a disk reproducing apparatus, wherein a transfer means for said storage area and delivering the magazine at the top and bottom of the working area is provided.

[0012]

According to the present invention, a large number of magazines storing recording media in multiple stages can be loaded in the storage section, and in particular, loaded magazines can be operated from the operation area to the storage area and from the storage area appropriately. By moving to the area, the magazine storing the selected recording medium can be arranged at a predetermined position.

Then, a desired recording medium, that is, a disc is taken out from the magazine, the disc is rotated by a turntable in the reproducing section, and the pickup operates along the rotating disc to record on the disc. Read information sequentially.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic front view showing the internal structure of a CD player mounted in a vehicle as an example of a disc reproducing apparatus according to the present invention. . In the figure, 1 is a main body, and the main body 1 is roughly divided into a storage section 2 and a reproduction section 3.

Inside the main body 1, the storage section 2 is adjacent to the reproduction section 3 and has an operation area 21 in which the magazine 4 can be moved up and down.
And the operating area 2 at the top and bottom of the regenerator 3.
It is formed by securing the storage areas 22 and 23 of the magazine 4 connected to 1, and has an inverted U-shape as shown in the drawing. Of these, the working area 21 is three magazines 4
Has a volume enough to accommodate the storage areas 22 and 2
Each 3 has a capacity capable of accommodating one magazine 4. It should be noted that the working area 2 in the storage unit 2
A loading port 24 is opened substantially at the center of the storage unit 1, so that the magazine 4 can be loaded into the storage unit 2 from here.
The magazine 4 loaded in the storage unit 2 is moved up and down in the operation area 21 by the elevating means to be described later, and in the upper and lower parts of the operation area 21 in the horizontal direction by the delivery means to be described later. To be moved to.

The elevating means has a structure in which a plurality of screw shafts 51 are provided in the operating region 21, and the screw shafts 51 are rotated in the forward and reverse directions by the worm wheel 52, while the magazine 4 can be moved up and down by the screw shafts 51. Will be supported by. The screw shaft 51 is provided at the upper end and the lower end of the operating area 21 and is rotatably supported at both ends.
2 is located at the lower end of the working area 21 and is rotatably supported at the center.

The delivery means comprises rubber rollers 61 and 62 provided in the operation area 21 and the storage areas 22 and 23, respectively. It should be noted that one rubber roller 61 is rotatably supported at the upper and lower ends of the operating area 21, and the other rubber roller 62 has one end rotating at the upper end of the storage area 22 and the other rotating at the lower end of the storage area 23. It is supported freely.

On the other hand, the reproducing section 3 is located in the middle of the storage areas 22 and 23 in the storage section 2 and has a turntable 31 and a pickup 32. The turntable 31 is mounted on a drive shaft of a motor 33 including a stepping motor, and the motor 33 is mounted on a board 34.
Further, the pickup 32 is an electronic device having a built-in semiconductor laser or the like as well known in the art.
1, and is provided on the substrate 34 so as to be capable of reciprocating.

According to the reproducing unit 3, a disc-shaped recording medium is pulled out from the magazine 4 by a feed roller (not shown), the recording medium is sandwiched between the turntable 31 and the clamp board 35, and is rotated. By operating the pickup 32 along the inner recording medium, the record information of the recording medium can be sequentially read.

FIG. 2 is a perspective view of the magazine 4 used in the CD player. As is clear from this figure, one side surface of the magazine 4 is an opening surface 41a, which is divided by a partition plate 42 into a plurality of shelves 43, and each shelf 43 has a disk shape. The recording medium of can be stored. Further, a slide shaft 44 is provided on one end side of the opening surface 41a adjacent to each shelf 43,
Two side surfaces 41b and 41c orthogonal to the opening surface 41a
Two arc-shaped screw portions 45 each formed with a screw having a constant pitch are formed in each.

As shown in FIG. 3, the screw shafts 51 are provided at four positions in the operating area 21 so as to face each other, and the screw portions 45 of the magazine 4 are screwed into the screw shafts 51. . Further, a worm 54 mounted on the drive shaft of the reversible motor 53 is provided in the operation area 21, and the worm 54 and the worm wheel 52 mesh with each other, and the worm wheel 52 is connected to the worm wheel 52 via the gear 55. The gear portion 51a is meshed with the gear portion 51a. Therefore, of the magazines 4 loaded in the storage section 2, the magazine 4 in the operation area 21 is supported by the screw shaft 51 so as to be able to move up and down, and at this time, the screw shaft 51 is rotated by the operation of the reversible motor 53. Thus, the magazine 4 can be moved up and down, and in particular, by controlling the stop operation of the reversible motor 53, the magazine 4 can be stopped at a predetermined position.

Further, as can be seen from this figure, the rubber roller 6
1, 62 are erected in a state of being pressure-bonded to both side surfaces 41b, 41c of the magazine 4 loaded in the storage section 2. Particularly, the lower end of the rubber roller 62 on the storage area 22, 23 side is connected to the reversible motor 63. The other rubber roller 61 is connected to the one rubber roller 62 and the belt 64 on the upper end side. Therefore, by operating the reversible motor 63,
The rubber rollers 61 and 62 can be rotated in the same direction, and at this time, the magazine 4 can be transferred to and from the storage areas 22 and 23 above and below the operation area 21.

For example, as shown in FIG. 1, when there are two magazines 4 in the operation area 21 of the storage unit 2 and one magazine 4 is stored in the lower storage area 23, the storage area When the recording medium in the magazine 4 in 23 is selected, the magazine 4 in the operation area 21 is first raised by the operation of the screw shaft 51, and then the magazine 4 in the storage area 23 is operated by the rubber rollers 61 and 62. The magazine 4 which has been transferred to the operation area 21 and then to the upper part of the operation area 21 is transferred to the storage area 22 by restarting (reverse rotation) of the rubber rollers 61 and 62, and finally to the screw shaft 51. The magazine 4 provided with the recording medium selected by restarting is controlled to stop when the magazine 4 is raised to a predetermined position.

In FIG. 3, D is a disk as a recording medium such as a compact disk, and the disk D is in a state of being stored in the magazine 4 and both end surfaces on the side of the opening surface 41a by leaf springs (not shown). Is being supported. When the slide shaft 44 shown in FIG. 2 is pushed in by the protrusion of a push rod (not shown) provided on the reproducing section 3 side when the magazine 4 stands still at a predetermined position, the magazine 4 is inserted through the slide shaft 44. The disk D is pushed out toward the opening surface 41a by operating a lever (not shown).

By the way, as shown in FIG. 3, the magazine 4 has the storage section 2 with the opening surface 41a thereof facing the reproducing section 3 side.
Since it is loaded inside, the ejected disc D can be transferred to the reproducing unit 3 side as it is. The transfer means has a structure in which a part of the pushed disk D is sandwiched by a pair of feed rollers and pulled out as described above, and a known mechanism is adopted in this respect.

Although the embodiment of the present invention has been described above, the present invention can take various structures other than the embodiment illustrated in the drawings. For example, as the elevating / lowering means of the magazine, it is possible to form a rack-shaped concavo-convex on the magazine, engage a large number of pinions with the concavo-convex, and move the magazine up and down by operating the pinions. Further, there are various means for delivering the magazine, such as providing a cylinder capable of horizontally pushing the magazine in the storage portion.

[0027]

According to the present invention, the magazine is secured adjacent to the reproducing unit in an up and down movable operating region, and the magazine storing regions connected to the operating region are secured in the upper and lower portions of the reproducing unit. Since the main body is small, it is possible to install a great number of recording media in spite of the small size of the main body.

Then, the magazine loaded in the storage section is appropriately moved from the operation area to the storage area and from the storage area to the operation area, whereby the reproduction preparation of the selected recording medium can be prepared.

Further, when the selected recording medium is in the magazine of the operation area, it is not necessary to transfer the magazine formed between the storage area and the storage area, and the reproduction preparation can be quickly prepared. When another recording medium is selected again from the magazine that stores the recording medium in the same section, it is possible to prepare for reproduction by only moving the magazine up and down slightly.

[Brief description of drawings]

FIG. 1 is a schematic front view showing the internal structure of a disc reproducing apparatus according to the present invention.

FIG. 2 is a perspective view showing a magazine used in the disc reproducing apparatus.

FIG. 3 is a schematic plan view showing the internal structure of the disc reproducing apparatus.

FIG. 4 is a schematic front view showing the internal structure of a conventional disc reproducing apparatus.

[Explanation of symbols]

 1 Main Body 2 Storage Section 21 Operating Area 22,23 Storage Area 24 Loading Port 3 Playback Section 31 Turntable 32 Pickup 4 Magazine 45 Screw Part 51 Screw Shaft 52 Worm Wheel 53 Reversible Motor 54 Worm 55 Gear 61, 62 Rubber Roller D Disk

Claims (1)

[Claims] 1. A main body having a storage portion and a reproducing portion, and a magazine in which disc-shaped recording media are stored in a multi-stage manner, the storage portion of the main body can be loaded with a magazine, and the reproducing portion is provided with the above-mentioned. A disc reproducing apparatus provided with a turntable that rotates a recording medium and a pickup that operates along the rotating recording medium and sequentially reads recorded information of the recording medium, wherein the storage section is adjacent to the reproducing section. It is formed by securing a movable operation area up and down by a magazine and securing a storage area of the magazine connected to the operation area above and below the reproducing portion, and raises and lowers the magazine in the operation area of the storage portion. A lifting means is provided, and a delivery means for delivering the storage area and the magazine is provided above and below the operating area. Disk reproducing device.