JPH0319100Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a disc case that is attached to a disc playback device together with a disc when playing back a disc stored therein.

[Prior art]

Conventionally, as a disk case that is attached to a playback device together with a disk, there is a floppy disk case that is used in office automation equipment and the like. However, in the case of a floppy disk case, the disadvantage is that it is impossible to take out the disk stored inside the case, and on the other hand, the positioning means for automatically loading the playback device is fully provided on the playback device side, so that it is not possible to take out the disk stored inside the case. Since it is a type that does not detect the position, it has the disadvantage that the case cannot be loaded accurately at a predetermined position.

[Purpose of invention]

The purpose of this invention is to make it possible to take out the disk, store various types of disks, and load the entire case into a playback device for playback.
Another object of the present invention is to provide a disk case in which the disk and case can be loaded accurately at predetermined positions by directly detecting the position of the case during the loading operation.

[Structure of the idea]

This idea allows you to freely load disc playback equipment.
Moreover, in a disk case that allows the disk stored inside the case to be regenerated when loaded into a device, the disk case is configured such that a disk can be arranged inside the case in a replaceable manner, and
A guide groove is formed on the surface of the case when the automatic loading mechanism of the equipment transfers the case to the fixed position in the apparatus, and a guide groove is formed on the bottom of the guide groove when the case is transferred to the fixed position within the apparatus. The case is characterized in that a detected part that performs position detection in cooperation with a detection part on the equipment side is integrally formed in this case.

In this case, a hole or a concave or convex portion may be formed on the surface of the case and used as the detected portion.

〔Example〕

The embodiment described here is an example in which this invention is applied to the case of a compact disk.

Figures 1 to 3 are diagrams showing the configuration of a disc case A according to this invention, and Figures 4 to 8 show an example of a device (compact disc player) for playing discs stored in the disc case A. FIG.

First, to explain the structure of the disk case A shown in FIGS. 1 to 3, the disk case A can store a disk (compact disk) 31 in a replaceable and recyclable state. The case 32 and the lower case 33 are connected to each other so as to be openable and closable, and a member for rotatably supporting the disk 31 is arranged inside the case 32 and the lower case 33. The upper case 32 includes a front wall 35 and left and right side walls 36 and 37 formed on the lower surface of the periphery of a rectangular top plate 34. Guide grooves 38 and 39 are formed on the outer surfaces of the side wall portions 36 and 37, respectively, and a rack gear 40 is formed on the bottom surface of the front half of one of the guide grooves 38, the details of which are shown in FIG. A recess 41 is provided on the bottom of the central part in the front-rear direction as a detected part for use in detecting the position of the case.
is formed. Further, a clamper 42 is attached to the center portion of the lower surface of the top plate portion 34. The clamper 42 is a disk-shaped member that rotatably holds the disk 31 in cooperation with a sub-turntable to be described later, and is rotatably attached to the lower surface of the top plate portion 34.

The lower case 33 has a rear wall 45 formed on the upper surface of the rear edge of a rectangular bottom plate 44, a turntable insertion hole 46 is formed in the center of the bottom plate 44, and a turntable insertion hole 46 is formed in the center of the bottom plate 44. Laser light introduction hole 4 on the side
7 is formed, and two location pin engagement holes 48 are formed on the rear side thereof. Above insertion hole 4
A sub-turntable 49 is rotatably disposed in the 6th section. This sub-turntable 49 is a disc-shaped member, and has a disc 3 in the center.
1 has an annular mounting wall portion 50 for mounting. This sub turntable 49 is
By engaging in the insertion hole 46, it does not fall downward, and because of the presser member 51 fixed to the bottom plate part 44, it does not come off upward from the insertion hole 46, so that it can be moved slightly up and down. It is arranged so that it can be moved in any direction.

The above-mentioned upper case 32 and lower case 33 are
The shaft portions (not shown) formed on the inner surfaces of the rear end portions of the side walls 36 and 37 of the upper case 32 are connected to the lower case 33.
By engaging with holes (not shown) formed at both left and right ends of the rear wall portion 45, they are connected to each other so as to be openable and closable. And these cases 32,
33, when these are closed as shown in Figure 2, projections and holes (none of which are shown) provided at appropriate locations on these cases engage to prevent them from opening accidentally. There is.

In the disk case A configured as above,
To store the disk 31, the upper case 32 and the lower case 33 are expanded, the mounting wall 50 of the sub-turntable 49 is relatively inserted into the center hole of the disk 31, and the sub-turn table is placed. It is attached to the table 49. Then, the upper case 32 and the lower case 33 are closed. In this state, the disk 31 is connected to the sub-turntable 49 and the clamper 4.
It is held between 2. In this way disk 31
Once stored in disk case A,
From now on, when handling disk 31,
Since the disc 31 does not need to be held directly, fingerprints can be prevented from being attached to the disc 31.

Also, from disk case A above, disk 3
1, remove the upper case 32 in the reverse order of the above.
The disk 31 can be removed from the sub-turntable 49 by expanding the lower case 33 and the lower case 33. Thus, in this case A, the disk can be replaced, and the conversion work is extremely simple.

Next, a description will be given of a device loaded with the above-mentioned disk case A and used to play the disk 31. 4 to 11 are diagrams showing the configuration of device B into which disk case A is loaded. In FIGS. 4 to 7, reference numeral 100 is an exterior case of the device, and a chassis 101 is disposed inside this exterior case 100. A disk motor 102 is attached to the chassis 101,
A turntable 103 is fixed to the rotating shaft. The turntable 103 is formed into a disk shape, and can be engaged with the sub-turntable 49 through the insertion hole 46 of the disk case A so as to transmit power. Further, a loading motor 104 is attached to the chassis 101, and its rotational force is transmitted to a shaft 104 rotatably supported by the chassis 101 via a driving force transmission mechanism.
5. A pinion gear 106 is attached to the shaft 105 so as to be movable in the vertical direction and capable of transmitting power.

Further, left and right location pins 108 are fixed to the chassis 101, and a housing 109 is further fixed to the chassis 101.
is supported. The location pin 108 is
As shown in FIG. 8, it is a cylindrical member having an engaging portion 110 at its upper end, and the engaging portion 110 can be engaged with the engaging hole 48 of the disk case A as shown in FIG. The housing 109 is connected to the link 1
11, is supported by the chassis 101 using a pin 112, and can be moved toward and away from the chassis 101 by rotating the link 111. This housing 109
includes a turntable 103 and a pinion gear 10.
6. Location pin 108 and chassis 10
A hole is formed in a portion where an optical head (not shown) attached to housing 109 is located, and each of the above-mentioned members protrudes or is exposed above this housing 109. Furthermore, a guide member 115 having protrusions 114 on the left and right sides is attached to the upper surface of the housing 109.
The guide member 115 positions the protrusion 114 in the guide grooves 38, 39 of the disk case A and guides the case in the directions of arrows G and H.
Further, a micro switch 116 is attached to the upper surface of the housing 109, as shown in FIGS. 4, 10, and 11. This switch 11
6, the actuator 117 is attached to the disk case A.
the guide groove 39 and the recess 41 on the bottom surface thereof.
The loading motor 104 is switched on and off by contacting and engaging with the motor. The housing 109 is urged downward by a clamp spring 118 stretched between the housing 109 and the chassis 101.

A pin 120 is provided at the rear end of the chassis 101.
A lock plate 122 is provided which is rotatable about the center and biased in the direction of arrow I by a lock spring 121. This lock plate 122
When the housing 109 moves upward, its rear edge is engaged with the engagement recess 123 to lock the housing 109 in that position. Further, an eject lever 124 is provided at the rear end of the chassis 101 and is operated by a drive mechanism (not shown) to push the housing 109 upward.

In this device B, various operation commands are issued by operating operation buttons (not shown).

In order to play a disk using the device B described above, first place the disk case A containing the disk 31 in the position shown by the two-dot chain line in FIG. and the end of the rack gear 40 contacts the pinion gear 106. Instrument B is initially in the raised position with housing 109 shown in FIG. 7, with locking plate 122 engaged with housing 109. When inserting the disk case A, the protrusions 114 of the guide member 115 are positioned within the guide grooves 38 and 39 to guide the case A in the direction of arrow G. When the actuator 117 comes into contact with the guide groove 39 and is displaced, the micro switch 116 is switched, thereby causing a control circuit (not shown) to control the loading motor 10.
Turn on 4. When the motor 104 is turned on, the pinion gear 106 is rotated clockwise in FIG. 4, whereby the pinion gear 106 meshes with the rack gear 40 and the disk case A is further transferred in the direction of arrow G.

When the disk case A is transferred to the position shown by the solid line in FIGS.
disengage with. On the other hand, at this time, the micro switch 116 is switched as its actuator 117 engages with the recess 41 of the disk case A.
This causes the control circuit to control the loading motor 10.
Turn off 4. That is, at this time, the micro switch 116 detects that the disk case A has reached the loading position. Lock plate 122
When the housing 109 comes off, the housing 1
09 is moved downward by the biasing force of the clamp spring 118. At this time, the turntable 103
relatively enters into the case through the insertion hole 46 of the disc case A, and inserts the sub-turntable 49 into the case.
engages the bottom surface of the Further, the left and right location pins 108 engage with the engagement holes 48 of the disk case A to hold the case in that position.

If the play button is operated here, the disk motor 102 is turned on and the turntable 103 is rotated, and this rotational force is transmitted to the sub-turntable 49 to rotate the disk 31. Here, the optical head irradiates the disk 31 with a laser beam from the chassis 101 side through the laser beam introduction hole 47 of the disk case A, detects the reflected light, and irradiates the disk 31 with a laser beam.
Read the signal recorded in 1. This signal is reproduced as an acoustic signal through a reproduction circuit, an amplifier, etc. (not shown).

Further, in order to take out the disc case A after finishing playing the disc 31, the eject button is operated. This causes the drive mechanism to
24 is driven downward to raise the housing 109, and the lock plate 122 engages with the housing 109 by the biasing force of the spring 121 to hold it in the raised position. At this time, the control circuit turns on the loading motor 104, causing the pinion gear 106 to rotate in the opposite direction to the above, thereby moving the disk case A in the H direction. This movement stops when the actuator 117 of the microswitch 116 leaves the guide groove 39.

Thus, the above disk case A can be used as device B.
The disk 31 stored in the device B can be played back while being loaded into the device B.

In the above embodiment, the engagement hole for the location pin formed in the disk case was formed only in the lower case, but this hole may be configured to pass through the upper case. Further, instead of this engagement hole, a protrusion may be formed on the disk case side, and the case may be positioned by engaging this protrusion with a recess, hole, etc. formed on the device side.

Further, in the above embodiment, the recessed portion 41 as the detected portion was provided on the guide groove 39 side, but it may be provided on the guide groove 38 side, or may be provided on both sides.

Further, in the above embodiment, a recessed portion is provided as the detected portion, but the shape thereof may be any shape other than a recessed shape, such as a hole or a convex shape.

[Effect of idea]

According to this invention, the disks can be taken out and replaced, and various types of disks can be stored.
In addition, a detection part for detecting that the case is at the loading position is integrally provided in the case itself, and by detecting the detection part, the device side drive source during loading operation is controlled. Therefore, with this disk case, it is possible to automatically and accurately load a disk into a predetermined loading position with only an extremely simple configuration. Furthermore, since the recessed portion serving as the detected portion is provided in the guide groove, the detected portion is not substantially exposed on the case surface.
This prevents any protrusions other than the detecting part of the automatic loading mechanism on the device side from accidentally catching on the detected part, making it possible to smoothly load the case into the device. Furthermore, the detection section on the equipment side is
Since the guide groove itself on the case side can be used as a self-guide, it is possible to prevent the detection part from being located in a part other than the detection position during loading, which makes it possible to smoothly detect the position of the disk case. It also has the advantage of being reliable.

[Brief explanation of drawings]

1 to 3 are diagrams showing the structure of a disk case A shown as an embodiment of this invention, and FIG. 1 shows the disk case A in an open state.
Figure 2 is a perspective view of disk case A viewed with the back side facing up, Figure 3 is a perspective view showing details of the rack gear portion of disk case A, and Figures 4 to 8 are views of disk case A. FIG. 4 is a diagram showing the configuration of device B used to play discs, and FIG. 4 shows device B with disk case A attached.
Fig. 5 is a plan view of the main parts of , Fig. 5 is a front view taken from the line in Fig. 4, Fig. 6 is a side view taken from Fig. 4, and Fig. 7 is a side view of equipment B viewed from the same direction as Fig. 6. FIG. 8 is an enlarged perspective view of the main parts of the location pin, and FIG. 9 is a diagram showing the state in which the disk case A and the location pin are engaged. An explanatory diagram, FIG. 10 is a diagram showing the positional relationship between the disk case A, the guide member, the pinion gear, and the micro switch, and FIG.
FIG. 2 is an explanatory diagram showing details of a portion indicated by an arrow Z in the figure. A...Disk case, B...Equipment, 31...
Disc, 32... Upper case, 33... Lower case, 38, 39... Guide groove, 41... Recessed portion (detected portion), 116... Micro switch.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a disk case that can be freely loaded into a disk playback device and that allows the playback of the disk stored inside the case when loaded into the device, the disk case configured such that the disks can be arranged interchangeably, and
A guide groove is formed on the surface of the case when the automatic loading mechanism of the equipment transfers the case to a fixed position in the apparatus, and further, a guide groove is formed on the bottom surface of the guide groove when the case is transferred to the fixed position within the apparatus. A disk case characterized in that a detected part that performs position detection in cooperation with a detection part on the device side when a device is detected is integrally formed in the case. (2) The disk case according to claim 1, wherein the detected portion is a hole or a concave or convex portion formed on the surface of the case.