JPH02232859A - Disk changer device - Google Patents

Abstract

PURPOSE:To easily attach/detach disks by providing a dust cover, which protects the disks, so as to be freely rotatable on the upper surface part of a tray. CONSTITUTION:On the upper surface part of a tray 1, a whole surface excepting for the range of a disk cover part 14a is exposed and a dust cover 15 is constituted to be opened/closed to a main body 2. Accordingly, only by opening the dust cover 15, a disk 5 on the upper surface of the tray 1 can be freely attached/detached regardless of the reproducing state of the disk 5. Further, when a part or the whole part of the cover 15 is made transparent, information such as printing on the surface of the disk on the tray 1 can be confirmed regardless of the opening/closing state of the cover 15 and the presence/absence of the disk 5 on the tray 1 can be easily confirmed. Thus, the disk 5 is successively changed and the different disks can be endlessly reproduced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a disc changer device capable of continuously playing a plurality of discs.

2. Description of the Related Art In recent years, there has been a remarkable growth in the use of disc changer devices for continuously playing a plurality of discs in disc playback devices.

An example of the above-mentioned conventional disc changer device will be described below with reference to the drawings.

4 and 6 show a conventional disc changer device.

In FIG. 4, 1 is a tray, 2 is a main body, and the tray 1 rotates on the main body 2 in the direction of arrow b. 3 is a housing, 4 is a front panel, 6 is a disk, 6 is an operation button, and 7 is a display section. The main body 2 on which the tray 1 is mounted can be stored by sliding in the direction of arrow 0 with respect to the casing 3, and the illustrated state shows the state in which the main body 2 has come out from the casing 3. In this state, the disk 6 can be attached to and detached from the disk attachment portion 1& of the tray 1.

FIG. 5 shows an exploded view of the driving portion of FIG. 4. 8 is the chassis, 9 is the slide drive unit, and the chassis 8
fixed on top. A drive motor 91L and a reduction gear are configured on the slide drive unit e, and a slide drive gear 9b
The main body 2 performs a sliding movement in the direction of arrow 0 by the rack 2a provided on the main body 2. Reference numeral 1o denotes an elevating mechanism section, which is composed of a drive motor 101L, an elevating cam 1ob, and a regeneration section 13. By converting the rotation of the drive motor 101L into vertical movement with an elevating cam 10b, it moves in the direction of arrow d around the rotating shaft section 100. The playback unit 13 is moved up and down.

This elevating and lowering mechanism section 10 is fixed to the main body 2, and is moved to a predetermined position in the playback section 13 at the top when playing a disc and at the bottom when the tray 1 is rotated. Reference numeral 11 denotes a rotation drive unit for the tray 1, and the rotation of the drive motor 11& is controlled by the tray drive gear 11b.
The gear portion 1b provided on the tray 1 rotates the tray 1 in the direction of the arrow b about the rotating shaft portion 1c, and the tray 1 is stopped at the playback position 121L.

The operation of the disc changer device configured as described above will be explained below.

As shown in Fig. 4, when the main body 2 is extended, the tray 1
Attach the disk 6 to the disk mounting section 1 & of the main body 2, send a command to the system slide operation using the operation button e, and slide the main body 2 to a position where the front surface of the front panel 4 and the front surface of the main body 2 are flush with each other. .

The operation at this time is as shown in FIG.
and the rack section 2a of the main body.

As shown in FIG. 6 below, the above-mentioned tray rotation drive unit 1
1. The tray 1 is rotated by the tray drive gear 11b and the tray gear part 1b, and moved to a position where the disc playback center 121L and the center of the disc mounting part 1tL coincide. Next, the above-mentioned reproducing section 13 is raised, and the reproducing section 1
3 turntable 131L and magnetic clamper 1
2 and insert the disc 6.

In this state, the disc 6 is rotated by the turntable 131L, the optical block 13b is traced, and the recorded signal on the disc 6 is reproduced.

Problems to be Solved by the Invention However, in the above configuration, since the tray is housed in the housing while a disc is being played, it is impossible to replace another disc while the disc is being played. .

Secondly, regardless of whether or not the disc is being played, if the tray is inside the housing, the top surface of the disc cannot be seen, so in order to check the information etc. printed on the top of the disc, the tray must be pulled out and the tray removed. You need to rotate it and move each disc to the front part to check.

Thirdly, when attaching and detaching the disks, there is a problem in that the tray must be pulled out and rotated to attach and detach each disk one by one in the same way as described above.

In view of the above-mentioned problems, the present invention makes it possible to freely exchange other discs even while a disc is being played, allows the surface of the disc in the tray to be directly checked from the top, and allows the disc to be inserted and removed by opening and closing the dust force bar. To provide a disc changer device that can be easily operated with only a hand.

Means for Solving the Problems In order to solve the above problems, the disc changer device of the present invention includes a main body, the main body is rotatably placed on the upper surface of the main body, and a plurality of discs can be arranged in a horizontal plane and attached/detachable. a playback unit including a tray, a drive unit that rotates the tray and stops it at a designated position, an optical block that plays back a disc recording signal, a servo circuit that controls the same, and a drive unit that moves the playback unit up and down to a predetermined position. The device is characterized by comprising an elevating mechanism that stops at a height of , and a cover that covers the reproducing portion above the tray.

Further, the apparatus is characterized in that the dust force bar is rotatably supported by the main body and covers at least the tray.

According to the above structure, the present invention arranges a plurality of discs on a horizontal plane and rotatably places a removable tray on the top surface of the main body, and only the playback section is covered, so that other discs are not touched during playback of the disc. It can be freely exchanged.

Moreover, simply opening the dust force bar exposes the disc mounting area other than the playback area.

Therefore, not only can a disc be extremely easily removed from the tray, but also other discs can be removed while the disc is being played.

Embodiment A disc changer device according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a disc changer device according to an embodiment of the present invention. In Fig. 1, 1 is a tray;
2 is a main body, 6 is an operation button, 7 is a display section, 14 is a reproduction section cover, and 15 is a dust force bar having a transparent section. Second
The figure has the same configuration as FIG. 1, and shows the state in which the disk 6 is attached and detached when the dust force bar 15 is open.

Next, the configuration will be explained using FIG. 3.

In FIG. 3, 22 is an electronic circuit board, 24 is a drive unit,
Reference numeral 34 denotes a power supply unit, and e denotes an operation button, which are fixed to the main body 2 with screws 20, and a bottom plate 23 is fastened to the main body 2 with the screws 20 on the lower surface. Hinge mounting portions 2b (2 locations) provided at the rear of the main body 2 on the top surface of the main body 2
Insert the hinge 16 into the hinge mounting portion 15! of the dust force bar 15 and insert the hinge tip 16a into the hinge mounting portion 15! of the dust force bar 15. L (two locations), thereby opening and closing the dust force bar 15 relative to the main body 1 in the direction of arrow h, centering on the axis of rotation of the hinge 16, as shown in FIG. be able to. In the case of this embodiment, the opening/closing operation of the dust force bar 16 is manually performed.

18 is a roller, which is the mounting part 2 of the main body 2! It is rotatably supported at four locations on L. A tray shaft 32 fixed to the drive section 24 protrudes from the center hole 2b of the main body 2, and the center of the tray shaft 32 is machined with a female thread. Pass the tray shaft 32 through the center hole 1C of the tray 1 and insert the row 21 described above.
8, and a clamp plate 19 is fixed thereon to the main body 2 and the tray shaft 32 with screws 20. The tray 1 is prevented from floating up by inserting the tray presser 17 into the mounting portion 2c of the upper tray main body 2 and fixing it to the main body 2 with a claw. A magnetic clamper 12 is placed on the clamp plate 19.
is supported by holding it vertically and horizontally. A clamping force bar 14 rides on the clamping plate so as to cover this cranking plate 19, and is fixed to the main body 2 by a claw portion 14b. The internal gear part 1b of the tray 1 and the upper gear part 25L of the drive gear 25 on the drive part 24 are engaged with each other through the through hole 2d of the main body 20, and rotate according to the rotation (arrow f) of the drive gear 26. C tray 1 rotates in the direction of arrow b.

A sensor board 21 on which two optical sensors 21a are attached is fixed to the main body 2, and the optical sensor 211L protrudes from the opening 2f of the main body 2. On the back side of the tray 1, there is a light sensor 211 which passes through the center of the light sensor 21&.
A shutter 1d is provided to control the light of L, and the tray 1 is configured to rotate and stop at a predetermined position by sending a signal from the optical sensor 21 & to the electronic circuit board 22 in accordance with the rotation of the tray 1. has been done. Next, a rotary plate 33 is supported by the drive portion 24 so as to be able to move up and down in the direction of arrow d around a rotation shaft portion 33a. The reproducing unit 13 is supported on a rotating plate 33, and is always urged in the direction of arrow h by a rotating spring 31 on the opposite side. Further, the shaft portion 33b fixed to the rotating plate 33 comes into contact with the cam surface of the lifting cam 26, and moves in the direction of the arrow d about the rotating shaft portion 331L in accordance with the rotation of the lifting cam 26 (arrow e). The rotating plate 33 is configured to rotate. A drive motor 24& is fixed to the drive unit 24, and rotation is transmitted to the drive belt 27, daily gear 28, and intermediate gear 30. An arm 29 is coaxially supported under the intermediate gear 30 so as to be rotatable in the directions of arrows ▲ and B, and a planetary gear 291L is supported on the arm 29 so as to be freely rotatable while being biased vertically by a spring. ing. The spring K incorporated in the planetary gear 291L generates a rotational force in the arm 29 in accordance with the rotating direction of the intermediate gear 3o, so that the planetary gear 29& can be moved in the direction of arrow 5 or arrow B.

With this configuration, the rotation of the drive gear 25 (arrow f) or the rotation of the elevating cam 26 (arrow 6) can be obtained according to the rotation direction (arrow g) of the drive motor 24a, and as described above, these gears and cams can be rotated. The rotation of the tray 1 causes the tray 1 to rotate or the reproduction section 13 to move up and down.

The disc playback operation in the disc changer device configured as described above will be specifically explained below.

From the state where the dust cover 16 is closed as shown in FIG. 1, the dust force bar 15 is manually operated as shown in FIG.
, and insert the disc 6 into the disc mounting section 1& of the tray 1. When the operation button 6 is pressed to issue a playback command, the number 1 part of the mounting section 1a of the tray 1 in FIG.
The disk cover part 1 of the clamp cover 14 rotates in the direction
Move to the concentric position of 4&. At this time, the reproducing section 13 is stopped in the downward direction as shown in FIG. Thereafter, as shown in FIG. 3, the reproducing unit 13 rotates in the upward direction of the arrow d and moves to a horizontal state. In this state, the playback section 13 protrudes from the opening 2e of the main body 2, and the playback section 13 protrudes from the turntable hole 10 of the tray 1.
By protruding the turntable 13& of the playback unit 13, the disc 6 is moved to the turntable 13 of the playback unit 13.
1L, and is sandwiched between the magnetic clamper 12 on the clamp plate 19 and chucked.

Next, the turntable 131L is rotated and the optical block 13b is moved horizontally in the direction of the arrow to reproduce the recorded signal on the disk. This reproducing operation is performed regardless of the opening/closing state of the dust force par 15 described above, and is performed without being affected by the attachment and detachment of discs to the disc device section 1 & of the tray 1 other than the reproducing section. be.

As described above, according to this embodiment, as shown in FIG. By opening and closing the dust force bar 16, the disk cover part 14 can be opened and closed. Not only can the disks 6 on the top surface of the tray 1, except for L, be attached and detached freely regardless of the playback status of the disks 6, but also the dust cover 16 can be easily removed by making part or all of the dust force bar 16 transparent. Regardless of whether the tray 1 is opened or closed, information printed on the disk surface of the tray 1 can be checked, and the presence or absence of a disk on the tray 1 can be checked very easily.

The fact that the above-mentioned disk exchange can be performed even during playback not only makes it easier to insert and remove disks, but also allows for technology-less playback of different disks, which was previously impossible, by replacing disks one after another. This allows new developments in continuous playback. In the above embodiment, the dust force bar is attached to the main body so as to be openable and closable, but for example, the disc changer may be placed on the top of the audio rack, and the dust force bar may be attached to the audio rack so as to be openable and closable.

Advantages of the Invention As described above, the present invention allows disks to be placed and removed by arranging them on a horizontal surface, and leaves the top surface of a rotatable tray in an open state except for the playback portion, and a dust cover is provided on the top surface of the tray to protect the disks. By providing the dust force bar in a rotatable manner, the part where the disc is installed other than the playback part is exposed by simply opening the dust force bar, which not only makes it extremely easy to install and remove a disc, but also allows other discs to be installed and removed while the disc is being played. However, by sequentially replacing the discs, it is also possible to continuously play back different discs. Furthermore, even while the disc is being played back, it is extremely easy to check information printed or otherwise displayed on the surface of the disc other than during playback, and to check the presence or absence of the disc. As described above, with a relatively single structure, the operability of disc loading, checking, etc. can be significantly improved, and the practicality of the disc changer device is great.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the dust force bar of the disc changer device according to the embodiment of the present invention in the closed state, FIG. 2 is a perspective view of the dust force bar of FIG. 1 in the open state, and FIG. FIG. 4 is an exploded perspective view of the internal structure of the conventional disk changer device, FIG. 4 is a perspective view showing the state of the main body of the conventional disc changer device after the front side has been slid, and FIG. 6 is an exploded perspective view of the drive structure of FIG. 4. 1...Tray, 2...Main body, 3...
...Housing, 4...Front panel, 5...
・Disc, 6... Operation button, 7...
・Display unit, 8...Chassis, 9...Slide drive unit, 10...Elevating mechanism unit, 11...
... Rotation drive section, 12 ... Magnet clamper, 13 ... Regeneration section, 14 ... Crank cover, 15 ... Dust force bar, 16・
...Hinge, 17...Tray holder, 18
...Roller, 19...Krande board, 2
0...Screw, 21...Sensor board,
22... Electronic circuit board, 23... Bottom plate, 24... Drive section, 26... Drive gear, 26... Lifting cam, 27... Drive belt, 28... Daily gear, 29...
・Arm, 30...Intermediate gear, 31...
・Rotation spring, 32...Tray axis, 33...
...Rotating plate, 34...Power supply section. Name of agent: Patent attorney Shigetaka Awano and 1 other person
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Claims (2)

[Claims] (1) a main body; rotatably placed on the upper surface of the main body;
It also includes a tray on which a plurality of disks can be arranged and removed on a horizontal surface, a drive unit that rotates the tray and stops it at a designated position, an optical block that reproduces a disk recording signal, and a servo circuit that controls this. What is claimed is: 1. A disc changer device comprising: a reproducing section; an elevating mechanism section for raising and lowering the reproducing section and stopping it at a predetermined height; and a cover for covering the reproducing section above a tray. (2) The disc changer device according to claim 1, further comprising a dust cover rotatably supported by the main body and covering at least the tray.