JPH0713100Y2 - Disc case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a disk case for housing a disk such as a compact disk.

[Conventional technology]

As a conventional disk case, there is a disk case of a floppy disk used in various office automation equipment. The disc case is configured such that the disc is stored in the case in a non-removable state and is loaded into the disc reproducing device together with the disc when the disc is reproduced. Therefore, this structure of the disc case has a drawback that it cannot be applied to a disc case in which the disc needs to be taken in and out or the disc needs to be replaced, for example, a compact disc case.

Therefore, the applicant provided a disk case that can be used as a case for a compact disk or the like, that is, a disk case in which the disk can be replaced, in Japanese Patent Application No. 59-73584 (Japanese Patent Publication No. 2-23948). This disk case is composed of an upper case and a lower case that can be opened and closed so that the disk case can be taken in and out.

[Problems to be solved by the invention]

When the disc case is openable and closable as described above, it is necessary to provide a lock mechanism so that the upper and lower cases do not open unexpectedly when the case is closed. Further, it is practically required that this lock mechanism be easily operated when opening the case. The fact is that such an effective and appropriate locking mechanism that can be easily operated is not yet provided. In addition, in recent years, there is a strong need to mount a compact disc case on a car in particular, so that it does not open carelessly to meet this need,
In addition, a disk case with good operability has been desired.

In this invention, the problem is how to construct a lock mechanism that is easy to operate in a disc case that allows the disc to be taken in and out.

[Means for solving problems]

The disc case of the present invention comprises a case body (2) having a disc storage portion (35) in the center and one side of the case body (2) so that the disc storage portion (35) can be opened and closed. And a lid (1) rotatably connected to the shaft via a support shaft (11), and the support shaft (11) of either the case body (2) or the cover (1). ) Side, a claw-shaped engaging portion (13) is formed on the side portion on the opposite side, and at the corresponding position on the other side, the above-mentioned movement is caused by the rotation of the lid body (1). An engaging portion (52) is formed that abuts on and engages with the engaging portion (13) to restrict the rotation of the lid body (1) with respect to the case body (2) in the opening direction. Moreover, these engaging portions (13, 52) are arranged at positions where they are opposed to each other and overlap each other in a part of the rotation range of the lid body (1). The engaging portion (13),
An inclined surface is formed which contacts the other of the lids (1) in the closing direction and moves the lid in the retracting direction when the lid (1) is rotated in the closing direction, and the engaging portion (13) is provided on the side portion. The urging means (10a) for urging the urging means (10a) so as to face it when the urging means moves in the backward direction, and the connecting part (10
an unlocking operation part (10c) that is connected via b) and is operated to deform the biasing means (10a) so that the engaging part (13) moves in the backward direction. 10) is formed.

[Action]

According to the above configuration, when the lid body (1) is rotated in the closing direction, the engagement portions (13, 52) existing at the positions overlapping each other in the rotation range come into contact with each other, and one of them is brought into the other. When it comes into contact with, it is pushed by the inclined surface and retracts while elastically deforming the biasing means (10a). After that, when the lid body (1) further rotates, one of the engaging portions projects to the original position by the urging force of the urging means (10a) and reaches a position where the other engaging portion overlaps with the other, and the lid body Fixed in the closed state. Further, when the biasing means is elastically deformed by the operation portion (10c), one of the engaging portions is retracted to a position where it does not overlap the other in the rotation range, and the lid body (1) is rotated in the opening direction. It will be possible. When the operation of the operating portion (10c) is stopped, the biasing means (10a) causes one of the engaging portions to project to a position where it can overlap the region.

〔Example〕

1 to 23 are views showing an embodiment of the present invention. The embodiment shown in these figures is an embodiment when the present invention is applied to a case of a compact disc.

1 to 3 show the overall structure of the disk case described here. As shown in these figures, the disc case has a lid body 1, a case body 2, a shutter plate 3, and a magazine plate 4 as main constituent elements.

The lid 1 is a rectangular plate-shaped body as shown in FIGS. 4 to 11. The lid 1 is an integrally molded product made of transparent synthetic resin, and a main wall 1a is formed with a hole 5 in the center thereof and tapered portions 6 and 6 on the left and right side edges, and a rear end. Left and right cutouts 7, 7 are formed in the bottom portion, and the rear wall portion 8 is formed on the rear edge of the lower surface.
Is formed, and left and right lock release operating portions 10, 10 are formed at the front end portion. As shown in FIG. 21 and FIG. 22, the hole 5 is formed so that its diameter is gradually reduced downward in a stepwise manner and is composed of a large diameter portion 5a, a medium diameter portion 5b and a small diameter portion 5c. ing. Bosses 11, 11 for connecting to the case body 2 are formed on the left and right outer end surfaces of the rear wall portion 8.

The unlocking operation part 10 cooperates with a part of the case body 2 to lock the lid body 1 and the case body 2 in a closed state, and unlocks the lock when the unlocking operation is performed.
It is formed in a recess 12 formed at the front end of the main wall 1a. That is, as shown in FIGS. 8 and 10, the unlocking operation portion 10 includes a biasing portion 10a having a U-shaped cross section, which is continuously provided on the lower surface of the inner end edge of the recess 12 of the main wall portion 1a, and the biasing portion 10a. The plate portion 10b extends forward from the upper end on the front side of the portion 10a, and the operation wall portion (operation portion) 10c extends downward from the front end of the plate portion 10b. In this case, a claw-shaped engaging portion 13 protruding obliquely upward is formed on the front end surface of the urging portion 10a, and the plate portion 10
A hole 14 is formed at the rear end of b. The urging portion 10a has a particularly thin wall portion at its lower portion, and can bend the thin portion 15 to displace the claw-shaped engaging portion 13 in the front-rear direction.

The lid 1 formed as described above has a structure shown in FIGS.
As shown in FIGS. 21 and 22, a stabilizer 20 is arranged in the hole 5. The stabilizer 20 is a member for holding a disc (compact disc) 21, and is a disc-shaped member made of synthetic resin. The stabilizer 20 has a recess 23 formed in the center of the upper surface thereof to engage with a clamper 22 of a disk reproducing device (details of which will be described later), and a turntable 24 of the disk reproducing device in the center of the lower surface.
A convex part 25 that engages with
An engaging portion 27, which is 26, is formed, a disc holding portion 28 is formed on the outer peripheral edge of the lower surface, and a groove 29 is formed inside the holding portion 28. Inside the groove 29, a sponge ring 30 is arranged with its lower half portion protruding downward by means such as adhesion.

Further, a synthetic resin ring 31 for preventing the stabilizer 20 disposed in the hole 5 from coming out upward is fixed in the large-diameter portion 5a of the hole 5 by means such as adhesion or welding. There is. Under this structure, the stabilizer 20 has
The taper portion 26 of 27 does not come out upward by engaging the taper surface 32 formed on the inner peripheral surface of the ring 31, and the engagement portion 27 does not come out upward. By engaging with the stepped portion 33 between the 5c, it does not come out downward, and it can move up and down within the range regulated by the tapered surface 32 and the stepped portion 33, and also can rotate within the hole 5. Is.

The case body 2 is also a rectangular plate-shaped body as shown in FIGS. 12 to 20, and is an integrally molded product made of synthetic resin. The case main body 2 has a main wall 2a having a disc storage hole 35 (disc storage) formed at the center thereof, and left and right cutouts 36, 36 formed at the rear end thereof. Side wall portions 37, 37 are formed across the edge and the cutout portion, the inside of the side wall portions 37, 37 at the left and right side edges are formed in a tapered shape and are continuous with the main wall portion 2a, and the main wall portion is also formed. A rear wall portion 38 is formed at the rear end portion of 2a, and guide grooves 39, 39 are formed on both left and right side surfaces,
Left and right lock parts 40, 40 are formed at the front end, and a counterbore part for disposing the shutter plate 3 around the disk storage hole 35 on the lower surface.
41 is formed in the counterbore 41 at the rear end of the lower surface, which is deeper than the counterbore 41 and is a deep counterbore for disposing the shutter lever 42 fixed to the shutter plate 3. 43
Are formed, and screw holes 44, 44 ... For fixing the magazine plate 4 are formed at the four corners of the lower surface, and a hole 45 is formed at the center of the rear end lower surface in the left-right direction and at the end of the deep counterbore 43. Are formed. The rear end portion of the side wall portion 37 is located at a certain distance from the side end surface of the rear wall portion 38, and an engaging groove 46 for fitting the boss 11 of the lid body 1 is provided at this rear end portion. Has been formed. A rack 47 that meshes with a disc case feeding pinion provided in the disc reproducing device is formed on the bottom surface of one of the guide grooves 39, 39.

The lock portion 40 cooperates with the unlocking operation portion 10 of the lid body 1 to lock the lid body 1 and the case body 2 in a closed state, the details of which are shown in FIGS. 12 and 17. Has been done.
As shown in these figures, a recess 50 is formed at the front end of the main wall 2a.
And a hole 51 are formed. A wall portion between the recess 50 and the hole 51 is a lock portion 40, and the lock portion 40 has an upper end protruding slightly above the upper surface of the main wall 2a as shown in FIG. The rear surface has a claw 52 protruding rearward.
The lock portion 40 thus formed can be engaged with the unlock operation portion 10 as described later. The thickness dimension of the main wall portion 2a is slightly larger than the thickness dimension of the disc 21.

The shutter plate 3, as shown in FIGS. 3 and 23, is a body having a groove thickness and is made of synthetic resin. The shutter plate 3 is formed by cutting the opposing outer peripheral portions of a circular plate body linearly with a certain dimension, and a deformed elliptical hole 54 is formed in the central portion of the shutter plate 3. A hole in
A long hole 55 continuous with 54 is formed, and a shutter lever 42 made of synthetic resin is fixed to the rear edge by means such as welding and adhesion. The shutter lever 42 has a shaft portion 56 projecting upward at a base end portion thereof, and a projection 57 projecting rearward at a longitudinal intermediate portion thereof, and a tip end portion thereof projects outward of the shutter plate 3. It is the operated part 58 that operates.

The magazine plate 4 is a metal plate having a rectangular shape.
The magazine plate 4 is fixed to the lower surface of the case body 2, and the contour thereof is substantially the same as the outer shape of the case body 2. This magazine plate 4
As shown in FIG. 3, a turntable insertion hole 60 is formed in the center of the, a laser beam introduction hole 61 is formed in the front half, and left and right positioning holes 62, 62 are formed in the front end.
Attachment holes 63, 63 ... To the case body 2 are formed at the four corners. This magazine plate 4 is equipped with
As shown in FIG. 22, an annular spacer 64 made of synthetic resin is fixed to the peripheral portion of the turntable insertion hole 60 by means such as adhesion. The upper end of the spacer 64 projects slightly above the upper surface of the magazine plate 4.

The assembled state of each of the above members is as follows. First,
The lid body 1 is connected to the case body 2 by fitting the left and right bosses 11 into the engaging grooves 46 of the case body 2 as shown in FIGS. On the other hand, it can be rotated around the boss 11, and the disc storage hole 35 can be opened and closed.

The shutter plate 3 is fixed to the shutter plate 3, the shaft portion 56 of the shutter lever 42 is fitted into the hole 45 of the case body 2, and the shutter lever 42 is arranged in the deep counterbore portion 43.
The case body 2 is arranged in the counterbore 41 and will be described later.
The magazine plate 4 is fixed to the
Held within 41. As shown in FIG. 23, the shutter plate 3 is rotatable in the directions of arrows S and T about a shaft portion 56, and is normally interposed between the projection 57 of the shutter lever 42 and the case body 2. The shutter spring 65 is biased in the direction of arrow S. The rotation range of the shutter plate 3 is restricted to a certain range by the side wall of the counterbore 41 of the case body 2.

The magazine plate 4 is brought into contact with the lower surface of the case body 2 with the upper end portion of the spacer 64 inserted into the hole 54 of the shutter plate 3 as shown in FIGS. It is fixed to the case body 2 by tightening a screw (not shown) in the hole 44. (Instead of screwing, a boss or the like may be formed on the case body 2 side, the magazine plate 4 may be fitted to the boss, and then the boss or the like may be fixed by caulking.) In the normal state, the shutter plate 3 is
As shown in FIG. 23, the laser beam introduction hole 61 of the magazine plate 4 is closed by being biased in the direction of arrow S. At this time, the operated portion 58 of the shutter lever 42 projects to the outside from an opening portion that opens to the side of the deep counterbore portion 43 of the case body 2,
It is moved in the direction of arrow U and is located at the position indicated by the solid line.

In order to store the disc 21 in the disc case having the above structure, as shown in FIG. 1, the cover body 1 is expanded with respect to the case body 2 around the boss 11 and the disc storage hole 35 exposed to the outside. The disk 21 is stored inside. And the lid 1
As shown in FIG. 2, the left and right lock release operation parts 10 with the disk storage holes 35 closed are connected to the lock part 40 of the case body 2.
To lock the lid 1 and the case body 2 with each other. To engage the lock release operating portion 10 with the lock portion 40, the plate portion 10b of the lock releasing operation portion 10 is pressed toward the lock portion 40. Then, as shown in FIG. 10, the urging portion 10a enters the hole 51 of the case body 2, the plate portion 10b and the operation wall portion 10c cover the upper surface and the front surface of the lock portion 40, and the urging portion 10a has a thin wall. Part 15
Is bent and the claw-shaped engaging portion 13 is engaged with the claw 52. Thus,
The lid 1 and the case body are not accidentally opened.

In this state, the disc 21 stored inside is
As shown in the figure, it is pressed downward by the sponge ring 30 fixed to the stabilizer 20, and its lower surface is covered by the spacer 64.
The spacer 64 and the sponge ring 30 are held in contact with the upper surface of the. Therefore, the disc 21 does not unexpectedly move inside the disc case.

Further, to open the disc case and take out the disc 21, as shown in FIGS.
Of the urging part 10a by pushing the operation wall part 10c of the
It is only necessary to bend 15 to disengage the claw-shaped engaging portions 13 and 52, and then open the lid 1 from the case body 2.

Next, the configuration of the device for reproducing the disc 21 housed in the disc case will be described. Such a disc reproducing device has a guide groove of the disc case when the disc case accommodating the disc 21 is inserted into the device.
A guide member that engages 39, 39 to guide the case to a playable fixed position, a pinion gear that meshes with a rack 47 formed in one of the guide grooves to transfer the case to the fixed position, and a shutter lever 42. And an operation member for operating the operated portion 58. Also, when the disc case is sent to the above-mentioned fixed position, a positioning pin that engages with the positioning holes 62, 62 of the disc case and stops the case at the fixed position,
As shown in the figure, the turntable 24 enters the spacer 64 to hold the disk 21, and is driven during play to rotate the disk 21, and the stabilizer 20 is pressed downward to move the disk 21 to the stabilizer 20 and the turntable 24. And a clamper 22 for picking up the signal from the disk, and an optical head for reading a signal recorded on the disk 21 through a laser beam introducing hole.

The turntable 24 is a disk-shaped member, and has a mounting wall portion 71 on the upper surface of which the disc 21 is mounted and a disc holding portion 72 on the outer peripheral portion of the upper surface. The clamper 22 is also a disc-shaped member, and has a protruding wall portion 73 at the center of the lower surface thereof.

This device drives the above-mentioned pinion gear to move the disc case in the X direction shown in FIGS. 2 and 23 when the disc case is inserted into the device by a predetermined amount, and moves the disc case to the above-mentioned fixed position. Transfer. At this time, the operated portion 58 of the shutter lever 42 of the disc case is brought into contact with the operating member arranged on the apparatus side and moved from the solid line position to the two-dot chain line position.
This causes the shutter plate 3 to rotate in the direction of arrow T,
55 is aligned with the laser light introducing hole 61, and this 61 is opened.

When the disk case is put in place like this,
The turntable 24 enters the disk case through the spacer 64, and the mounting wall portion 71 is fitted into the center hole of the disk 21. At the same time, the clamper 22 recesses the protruding wall portion 73.
It is inserted in 23 and pushes stabilizer 20 downward. As a result, the disc 21 is attached to the mounting wall portion 71 of the turntable 24.
In the state of being mounted on the disc, the disc holding portion 72 of the turntable 24 and the disc holding portion 28 of the stabilizer 20 are firmly held. At this time, sponge ring 30
Are strongly compressed and come into strong contact with the disk 21.

Here, if a play command is given to the device, the turntable 24 rotates, which causes the disc 21 to move to the clamper 22,
The disc 21 is reproduced by rotating with the stabilizer 20 and the optical head reads the signal recorded on the disc 21 through the laser beam introducing hole 61.

The disc reproducing device is an example of a device for reproducing a disc using the disc case described above.

In this embodiment, the main wall 2a of the case body 2 is
Since the disk storage hole 35 is formed in the disk and the thickness of the main wall portion 2a is made larger than the thickness of the disk 21, there is an advantage that the space of the disk storage portion can be efficiently secured and the entire case can be formed thin. Further, since the center of rotation of the shutter plate 3 (the shaft portion 56 of the shutter lever 42) is provided at the rear end portion of the shutter plate 3 on the side opposite to the side where the elongated hole 55 is formed, a small displacement of the shutter lever 42 is caused. Therefore, there is an advantage that the moving stroke on the side of the long hole 55 can be made large and the opening / closing operation of the laser light introducing hole 61 can be surely performed.

[Effect of device]

According to the disc case according to the present invention, the case body having the disc housing portion can be closed by a simple operation such as turning the lid body toward the case body. In the closed state, the engaging portions provided on the case body and the lid are always kept in the engaged state by the urging force of the operating portion, so that the closed state can be reliably held. In addition, the unlocking operation is performed by pressing the operation portion provided on the side of the case against the urging force,
The engagement of the engaging portion is released only by linearly moving the operating portion, which is ergonomically extremely easy to operate. On the other hand, since there is a biasing force of the operating part, unexpected opening of the lid can not occur unless this is artificially operated,
It is possible to reliably prevent damage to the stored disc.

Further, since the engaging portion and the unlocking operation portion are integrally formed on the lid body and the case body, respectively, it is not necessary to provide a separate dedicated component member for closing and locking and unlocking, and it is simple. It can be configured in various ways.

[Brief description of drawings]

1 is a perspective view of a disc case in an open state, FIG. 2 is a perspective view of the disc case in an open state, and FIG. 3 is a disc case. 4 is a plan view of the upper case, FIG. 5 is a front view of FIG. 5, FIG. 6 is a rear view of FIG.
Sectional view taken along line I-VII, FIG. 8 is a sectional view taken along line VIII-VIII of FIG. 4, FIG. 9 is a side view taken along line IX-IX of FIG. 4, and FIG. Figures and 11 are bottom views of the upper case and 12
The figure is a plan view of the case body, FIG. 13 is the same front view, FIG. 14 is the same rear view, FIG. 15 is a side view taken along line XV-XV of FIG. 12, and FIG. Enlarged view, Fig. 17 is Fig. 12 XVII-XVII
Fig. 18 is a bottom view of the case body, and Fig. 19 is a sectional view taken along the line.
18 is a side view taken along the line XIX-XIX, FIG. 20 is a cross-sectional view taken along the line XX-XX of FIG. 18, FIG. 21 is an enlarged vertical cross-sectional view of the main part of the disk case accommodating the disk, and FIG. FIG. 23 is an enlarged vertical cross-sectional view showing a main part in a state where the housed disc case is loaded in the disc reproducing device, and FIG. 23 is an explanatory diagram for explaining the action of the shutter plate. 1 ... Lid, 2 ... Case body, 3 ... Shutter plate, 4
...... Magazine plate, 10 ...... Unlock operation section, 13 ...
… Engagement part, 35 …… Disk storage part (disk storage hole),
40 …… Lock part, 52 …… Engagement part.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-60-40581 (JP, A) JP-A-56-107356 (JP, A) JP-A-57-138070 (JP, A) Actual development Sho--60- 134780 (JP, U) Actual development Sho 60-62482 (JP, U) Japanese Patent Publication No. 2-41831 (JP, B2) Actual Publication No. 3-30314 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A case main body (2) having a disk storage section (35) in the center, and one side portion of the case main body (2) so that the disk storage section (35) can be opened and closed. A cover body (1) rotatably connected via a support shaft (11), and one of the case body (2) and the cover body (1) on the support shaft (11) side. A claw-shaped engaging part (13) is formed on the side opposite to the above, and the engaging part (13) is formed at the corresponding position on the other side as the lid (1) rotates. An engaging portion (52) is formed that abuts against and engages with the portion (13) and restricts rotation of the lid (1) with respect to the case body (2) in the opening direction, and The engaging portions (13, 52) are arranged at positions overlapping and facing each other in a part of a rotation range of the lid body (1). The (13) is formed with an inclined surface that abuts on the engaging part (52) and moves it in the backward direction by the rotation of the lid (1) in the closing direction. Is an urging means (10a) for urging the engaging part (13) so as to face the engaging part (13) when it moves in the backward direction, and a connecting part (10b) to the urging means (10a). An unlocking operation section (10) having an operation section (10c) that is connected to the engaging section (13) and is operated to deform the biasing means (10a) so that the engaging section (13) moves in the backward direction. A disc case characterized by being formed.