JPH0319099Y2 - - 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, this type of disk case includes a floppy disk case used in office automation equipment, etc., but in such a case, the disk cannot be replaced, It is unsuitable for use in a case such as compact disks used in In addition, when considering the case of a compact disk as described above, there is a member that holds the disk within the disk case and is rotatable, a member that urges this member toward the disk side, and a member that holds the disk as described above. It is necessary to provide a member that rotatably supports the case body, but in this case, the number of parts for each of these members increases, and this increases the thickness of the disk case.

[Purpose of invention]

The purpose of this invention is to provide a disk case in which the disk is replaceable with respect to the case, and in which a structure for efficiently holding and rotating the disk is incorporated into the thin case.

[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 is configured to be replaceable within the case, and the clamp member that holds the disk and its central part are A clamper is provided in the case, in which the supporting member is integrally formed with the supporting member and the urging member that connects the clamp member and the supporting member and urges the clamp member toward the disk side by insert molding. It is characterized by what it did.

〔Example〕

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

Figures 1 to 8 are diagrams showing the configuration of a disk case A according to this invention, and Figures 9 to 12 are equipment (compact disk player) for playing disks stored in the disk case A.
It is a figure showing an example.

First, the configuration of the disk case A shown in FIGS. 1 to 8 will be explained. The disk case A is configured so that a disk (compact disk) 31 can be stored in a replaceable and recyclable state. The main components are an upper case 32, a middle case 33, and a lower case 34 made of transparent synthetic resin.

The upper case 32 has side walls 36 and 37 formed on both left and right sides of the rear end of a rectangular top plate 35, guide grooves 38 and 39 formed on the surfaces of these side walls 36 and 37, respectively, and a shaft portion formed on the inner surface. 40, and a notch 41 is formed at the rear end of the top plate portion 35.

The middle case 33 has a front wall 43 and side walls 44 and 45 formed on the front end and both left and right sides of the rectangular plate 42 so as to protrude in the vertical direction of the plate 42. A rear wall portion 46 is formed at the rear end portion of the holder. Here, a hole 47 is formed in the center of the plate part 42, and a thrust receiving plate fixing hole 48 is formed around this hole 47, and the side wall part 4
Guide grooves 49 and 50 are formed on the surfaces of the guide grooves 4 and 45, respectively, a rack gear 51 is formed in the first half of the bottom of the guide groove 49, a recess 52 is formed in the bottom of the guide groove 50, and a recess 52 is formed in the bottom of the guide groove 50. A notch 53 is formed in the center, and the rear ends of the side walls 44 and 45 are thinly formed by notching their surfaces, and holes 54 are formed on the surfaces of the rear ends of these thin parts. At the same time, a shaft portion 55 is formed on the inner surface side.

A clamper 56 is disposed within the hole 47 as shown in FIGS. 1, 3, and 4. The clamper 56 is connected to the clamp member 5 as shown in FIG.
7, thrust spring 60, and ball support member 6
1, the clamp member 57 is an annular body having a protrusion 59 whose lower surface is a tapered surface 58, and a thrust spring 60 made of spring steel is fixed to the inner surface of the clamp member 57. A ball support member 61 is fixed at the center, and a steel ball 63 is fitted into a substantially hemispherical recess 62 formed in the support member 61. Note that the clamp member 57, thrust spring 60, and ball support member 61 are integrally formed by insert molding. The clamper 56 and the above-mentioned members fixed to this member are arranged so that the tapered surface 58 is engaged with a tapered surface 64 formed in the hole 47 so that they cannot fall downward. The portion of the inner case 33 where the thrust receiving plate fixing hole 48 is formed is a circular recess 65, and a disk-shaped thrust receiving plate 66 is fitted into the recess 65 and is formed on the lower surface thereof. The protrusion 67 is inserted into the fixing hole 48, and is welded to the inner case 33 side. Based on this configuration, the clamp member 57 and the members fixed thereto cannot escape upwardly, and the steel ball 63 that is in contact with the bottom surface of the recess 68 formed on the lower surface of the thrust receiving plate 66 is centered on the clamp member 57 and the members fixed thereto. It is rotatable.

The lower case 34 includes a rear wall 71 formed at the rear end of a rectangular bottom plate 70, and a connecting wall 72 formed at the left end of the rear wall 71. Here, the bottom plate part 70 has a turntable insertion hole 73 formed in its center, a laser beam introduction hole 74 in its front part, and two left and right engagement holes 75 for positioning in its rear part. Further, an arcuate groove 76 is formed on the upper surface of the front portion. Further, a back cover insertion groove 77 that opens upward is formed in the rear wall portion 71, and a hole 78 is formed in the connecting wall portion 72.

A sub-turntable 79 is disposed within the insertion hole 73 of the bottom plate portion 70. The sub-turntable 79 is a disc-shaped member that clamps the disc 31 in cooperation with the clamper 57, and has a disc mounting wall 80 formed at the center of its upper surface.
A disk holding wall portion 81 that protrudes upward is formed on the upper surface of the outer peripheral portion, and an engaging wall portion 83 having a tapered side surface 82 is formed on the lower portion of the outer peripheral portion. This sub-turntable 79 has a bottom plate portion 70
By engaging with a tapered surface 84 in the insertion hole 73 formed in the insertion hole 73, the insertion hole 73 is prevented from slipping out downward. A circular recess 85 is formed around the insertion hole 73 on the upper surface of the bottom plate 70, and a flange 87 of a shutter plate 86 is inserted into the recess 85. Details of the shutter plate 86 are shown in Figures 1 and 3.
As shown in FIG. The shutter plate 86 is
It opens and closes the laser beam introducing hole 74 and prevents the sub-turntable 79 from slipping out upwards, and a flange portion 87 that bulges slightly upward on the center hole 88 side has a radially outwardly extending portion on the outer circumference of the flange portion 87. An extending shutter portion 89 is provided in series, a side plate portion 90 extending laterally is provided in series with the shutter portion 89, and an outer edge 91 of this side plate portion 90 is formed in an arc shape concentric with the center hole 88. , furthermore, a hooking part 9 is attached to the outer end of the shutter part 89.
2 and an engaging portion 93 is formed at the outer end of the side plate portion 90. This shutter plate 86 has its shutter portion 89 connected to the laser beam introduction hole 7.
4, and the flange portion 87 is located within the recess 85. A flange member 94 is fixed to the upper surface of the bottom plate portion 70 to prevent the flange portion 87 from slipping out from the recess 85 .

On the other hand, in the groove 76 of the bottom plate part 70, one end is hooked to the end of the groove 76, and the other end is attached to the shutter plate 86.
The shutter spring 9 is latched onto the latching portion 92 of the
5 are arranged. This shutter spring 9
5 is held by a holding member 97 having a spring holding part 96 fixed to the bottom plate part 70 so as to expand and contract only within the groove 76. Based on this configuration, the shutter plate 86 is rotatable in the directions of arrows E and F around the flange portion 87 held in the recess 85, and is normally biased by the shutter spring 95. As a result, the shutter portion 89 closes the laser light introduction hole 74. The engaging portion 93 is positioned so as to slightly protrude outward from the side edge of the bottom plate portion 70. Furthermore, although the sub-turntable 79 can move slightly up and down within the insertion hole 73, it cannot escape upward due to the flange portion 87 held within the recess 85.

The upper case 32, the middle case 33, and the lower case 34 formed as described above and to which the above-mentioned members are attached are aligned as shown in FIG. The left and right shaft parts 40 of the middle case 32 are engaged with the left and right holes 54 of the middle case 33, and the left and right shaft parts 55 of the middle case 33 are connected to the bottom case 3.
They are connected to each other by being engaged with the left and right holes 78 of No. 4. Each case 32, 3 connected in this way
3 and 34 can be opened and closed with each other around the shaft parts 40 and 55 as shown in FIGS. The formed recesses and protrusions (not shown) engage with each other to prevent accidental opening. Here, the upper case 32
When the inner case 33 is closed, the top plate part 35
A small space is formed between the disc 31 and the plate portion 42, and this space is used as a space for inserting a so-called liner note 98, which is a written document detailing the recorded contents of the disc 31. Further, at this time, the guide grooves 38 and 39 of the upper case 32 are located on the same line as the guide grooves 49 and 50 of the middle case 33, respectively. Further, the rear wall portion 46 of the middle case 33 is connected to the cutout portion 4 of the upper case 32.
Located within 1. A spine insertion groove 77 formed in the rear wall 71 of the lower case 34 is used to insert a document indicating the main contents of the disc 31, the so-called spine. When the lower case 34 is closed, it is closed by the rear wall portion 46. The space between the middle case 33 and the lower case 34 is a space for storing the disk 31.
The engaging portion 93 of the shutter plate 86 is connected to the cases 33, 3.
4 protrudes to the outside from the notch 53 of the inner case 33 in the closed state.

To explain how to use the disk case A having the above configuration, first prepare the spine cover (not shown) and liner notebook 98 corresponding to the contents of the disk 31, and then open the middle case 33 and the lower case 34. The spine is inserted into the insertion groove 77, the upper case 32 and the middle case 33 are opened, and the liner notebook 98 is inserted between them. The contents of the spine and liner notebook 98 can be easily read from the outside when each case is closed, since each case is made of a transparent material. To store the disc 31, with the upper case 32 and middle case 33 closed, open the middle case 33 and lower case 34, and insert the disc 31 into the center hole of the sub-turntable 79.
The mounting wall portion 80 of the sub-turntable 79 is relatively inserted into the sub-turntable 79. And middle case 3
3 and the lower case 34 are closed. In this state, as shown in FIG. 1, the disk 31 is attached to the mounting wall 80 of the sub-turntable 79,
and a clamp member 57. FIG. 1 shows a state in which the disk case A is loaded into the device and the sub-turntable 79 is pushed upward, and when the disk case A is not loaded in the device, the disk 31, clamp member 57, and sub-turntable 79 are shown in the figure. Located further down. That is, the clamp member 57 is urged downward by the force of the thrust spring 60, and presses the disk 31 against the sub-turntable 79 side. Therefore, the sub-turntable 79 has its tapered surface 82 in contact with the tapered surface 84 of the lower case 34, and the insertion hole 7
3 is occluded. When the disk 31 is clamped, the support member 61 is restricted in its downward position toward the disk 31 with respect to the clamp member 57, thereby urging the disk pressing portion of the clamp member 57 toward the disk via the thrust spring 60. You can gain strength. As a result, disk 31
, the clamp member 57 and the sub-turntable 79
Since it is clamped by the biasing force of the thrust spring 60, it will not move inadvertently within the case. Further, as described above, the support member 61 is restricted in its downward position toward the disk 31 side, thereby obtaining a force to bias the clamp member 57 downward toward the disk 31 side via the thrust spring 60. The overall thickness of the clamper 56 can be made thinner, and the case A in which it is to be incorporated can be made thinner. In addition, as shown in FIG.
When pushed upward, the disk 31, clamp member 57, and sub-turntable 79 can be rotated around the steel ball 63.

As shown above, move disk 31 to disk case A.
If the disc 31 is stored inside, it is not necessary to directly hold the disc 31 when handling the disc 31, so that fingerprints can be prevented from being attached to the disc 31. In addition, in this disk case A,
Since the insertion hole 73 is closed by the sub-turntable 79 and the laser beam introduction hole 74 is closed by the shutter plate 86, almost the entire outside of the disk 31 can be covered, thereby preventing the disk from external forces, dust, etc. can be reliably protected from.

To take out the disk 31 from the disk case A, open the middle case 33 and the lower case 34 in the reverse order to the above and remove the disk 31 from the sub-turntable 79. Thus, in this case A, the disk can be replaced, and the replacement work is extremely easy.

Furthermore, since the clamp member 57, thrust spring 60, and ball support member 61 are integrally molded by insert molding, a structure that can efficiently hold the disk and support its rotation can be rationally incorporated into the case. The entire case can be constructed thinly, and the number of parts can be reduced, assembly can be facilitated, and costs can be reduced.

The details of the operation of each part when the above-mentioned disk case A is loaded into the device will be described later, but the guide groove 3
Each set of 8, 49 and 39, 50 is used as a guide to regulate the direction of transport of the case, the rack gear 51 is used as a mechanism for transporting the case in cooperation with the pinion gear on the equipment side, and the recess 52 is used as a mechanism for transporting the case. The engaging hole 75 is used as a detected part to detect the position of the case when controlling the transfer, and the engaging hole 75 is used to position the case relative to the equipment when loading the equipment. It is used as an operator to open and close.

Next, a description will be given of a device loaded with the above-mentioned disk case A and used to play the disk 31. 9 to 12 are diagrams showing the configuration of device B into which disk case A is loaded. In FIGS. 9 to 12, reference numeral 100 denotes 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 79 through the insertion hole 73 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 vertically movable 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
It is a cylindrical member having an engaging part 110 at the upper end, and the engaging part 110 is connected to the engaging hole 7 of the disk case A.
5. Housing 109
is supported by the chassis 101 using a link 111 and a pin 112, and can be moved toward and away from the chassis 101 by rotating the link 111. This housing 109 has holes formed in portions where the turntable 103, pinion gear 106, location pin 108, and optical head (not shown) attached to the chassis 101 are located.
Each of the above 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 has the protrusion 114
Guide grooves 38, 49, 3 of disk case A
9 and 50 to guide the case in the directions of arrows G and H shown in FIG. Further, a micro switch 116 is attached to the upper surface of the housing 109, as shown in FIG. This switch 116 is connected to the actuator 1
17 is the guide groove of the disk case A, and the recess 5
2 to control the on/off of the loading motor 104. 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 51 contacts the pinion gear 106. Instrument B is initially in the raised position with housing 109 shown in FIG. 12, 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 50 and is displaced,
The micro switch 116 is switched, and a control circuit (not shown) switches the loading motor 1.
Turn on 04. When the motor 104 is turned on,
At this time, pinion gear 106 is rotated clockwise in FIG. 9, whereby pinion gear 106 meshes with rack gear 51 and disk case A is further transferred in the direction of arrow G. here,
When the disk case A is inserted and transported in the direction of arrow G using the guide member 115 as a guide, the engaging portion 93 of the shutter plate 86 engages with the guide member 1.
15, thereby the shutter plate 86 is rotated in the direction of arrow E against the biasing force of the shutter spring 95, and the laser beam introduction hole 74, which had been closed by the shutter portion 86, is opened.

When the disk case A is transferred to the position shown by the solid line in FIGS. 9 and 11, the upper end of the lock plate 122 is pressed, and the lock plate 122 and the housing 10
Disengage from 9. On the other hand, at this time, the actuator 117 of the micro switch 116 engages with the recess 52 of the disk case A, and the control circuit turns off the loading motor 104. When the lock plate 122 is removed from the housing 109, the housing 109 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 73 of the disk case A, and engages with the lower surface of the sub-turntable 79 as shown in FIG. In addition, the left and right location pins 108 are connected to the engagement hole 7 of the disk case A.
5 to hold the case in position.

Here, when the play button is operated, the disk motor 102 is turned on and the turntable 103 rotates, and this rotational force is transmitted to the sub-turntable 79 to rotate the disk 31. Here, the optical head is inserted into the disk case A from the chassis 101 side.
A laser beam is irradiated onto the disk 31 through the laser beam introducing hole 74, and the signal recorded on the disk 31 is read by detecting the reflected light. 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 is engaged 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 50. Note that when the disk case A is removed from the device B, the shutter plate 86 is attached to the spring 95.
is urged to rotate in the direction of arrow F shown in Fig. 3,
This shutter plate 86 closes the laser light introduction hole 74.

Thus, the above disk case A can be used as device B.
The disc 31 can be automatically loaded into the disc 31, and the disc 31 can be played while being loaded into the device B.

[Effect of idea]

According to this invention, it is possible to load a disk housed in a disk case into a device and play it, and it is also possible to replace the disk with respect to the case. In addition, since it is equipped with a clamper in which the clamping member, elastic member, and supporting member are integrally formed by insert molding, a configuration that can efficiently hold the disk and support its rotation can be rationally incorporated into the case. . Furthermore, since the support member is positioned closer to the disk than the clamp member, the overall thickness of the clamper can be reduced. Therefore, the thickness of the entire case can be reduced by combining the effect of reducing the thickness of the entire clamper and the effect of rationally incorporating the clamper into the case. In addition, the number of parts is reduced, making assembly easier and reducing costs at the same time, which has many practical effects.

[Brief explanation of the drawing]

1 to 8 are diagrams showing the structure of a disk case A shown as an embodiment of this invention, in which FIG. 1 is a sectional view of the main parts centering on the clamper, and FIG. A perspective view of the entire case A,
Figure 3 is a perspective view showing the middle case and lower case opened, Figure 4 is an exploded perspective view, Figure 5 is a sectional view taken from Figure 4, and Figure 6 is a sectional view taken from Figure 4. 7 is a sectional view taken from FIG. 4, FIG. 8 is a sectional view taken from FIG. FIG. 9 is a plan view of the main parts of the device B with the disk case A attached, and FIG. 10 is a front view taken from the line shown in FIG. 9.
FIG. 11 is a side view taken along the line XI-XI in FIG. 9, and FIG. 12 is a side view of device B viewed from the same direction as FIG. 11, showing the housing in the raised position. be. A...Disk case, B...Equipment, 31...
Disc, 32... Upper case, 33... Middle case, 34... Lower case, 56... Clamper, 57
... Clamp member, 60 ... Thrust spring, 61 ... Support member, 63 ... Steel ball.

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 also allows the disk stored inside the case to be played when loaded into the device, replacing the disk inside the case The disc is configured to be able to be placed in the case, and has a case engagement part formed in an annular body in the case, and has a case engagement part on its outer periphery that restricts removal from the case and allows rotation within the case, and the disk A resin clamp member having a disk pressing portion on the opposing surface; a resin support member having a support portion disposed at the annular center of the clamp member and supporting rotation and regulating the position on the outer surface of the case; A clamper is provided in which a support member and a metal elastic member connecting the clamp member are integrally formed by insert molding, and when the disk is clamped, the support member is connected to the clamp member. 1. A disk case characterized in that the disk case is configured to obtain a force that urges the disk pressing portion of the clamp member toward the disk side through the elastic member by being positioned closer to the disk side. (2) Registration of a utility model characterized in that a steel ball is fitted into the support member, and the clamper is rotatably supported within the case by abutting the steel ball against the inner wall surface of the case. A disk case according to claim 1.