JPH041112Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a cassette case for storing a tape cassette.

BACKGROUND TECHNOLOGY AND PROBLEMS Conventionally, there is a tape cassette as shown in FIG. That is, in FIG. 1, (1) indicates a cassette case, and this cassette case 1 is composed of a pair of upper half 1a and lower half 1b. Reel hubs 2a and 2b are rotatably fitted into the cassette case 1, respectively, and the magnetic tape 3 is wound around the reel hubs 2a and 2b. 4 is a central opening provided on the front surface of the cassette case 1; 5a and 5b are small windows provided at symmetrical positions on both sides of the central opening 4;
and 6b are openings located on both sides of the small windows 5a and 5b, respectively, and provided in symmetrical positions with respect to the central opening 4;
The magnetic tape 3 is exposed to the outside of the cassette case 1 through the openings 6a and 6b. Reference numerals 7a and 7b are bulges each having a part facing the front surface of the cassette case 1 and protruding a predetermined amount from the top and bottom sides of the cassette case 1 in a trapezoidal shape.
Reference numerals 8a and 8b indicate reel shaft insertion holes provided on the top and bottom sides of the cassette case 1, respectively.

In the tape cassette constructed in this way, the magnetic tape 3 is always exposed to the outside of the cassette case 1 through the central opening 4, the small windows 5a, 5b, and the openings 6a, 6b on the front surface, so that it is not used. At times, there was a risk that dust and the like would adhere to the magnetic tape 3. or,
The reel hubs 2a and 2b around which the magnetic tape 3 is wound are loosely fitted to the cassette case 1 so that they can rotate, so if the reel hubs 2a and 2b are transported when not in use, the reel hubs 2a and 2b will not idle due to vibrations during transport. Therefore, there was an inconvenience that the magnetic tape 3 became loose.
Furthermore, when a plurality of tape cassettes are stacked and arranged, the bulges 7a and 7b are provided on the top and bottom sides of the cassette case 1, making it difficult to organize them.

For this reason, the reel hub 2a,
A cassette case as shown in FIG. 2 has been proposed in which tape cassettes can be stored in a compact and easily organized shape by preventing the tape cassettes 2b from idling.

In this FIG. 2, numeral 9 indicates a cassette case, and this cassette case 9 has an upper surface plate 9a and a lower surface plate 9b of the same size as the upper and lower surfaces of the cassette case 1 of the tape cassette, and a bulge of the tape cassette. It consists of a back plate 9c having a width equal to the vertical dimension of the front part including the amount of protrusion of each of the parts 7a and 7b, and one side edge of the bottom plate 9b is perpendicular to one side edge of the back plate 9c. At the same time, one side edge of the top plate 9a is rotatably connected to the other side edge of the back plate 9c, so that the top plate 9a has a U-shaped cross section when closed. Also, when the tape cassette is held between the top plate 9a and the bottom plate 9b with its front face facing the back plate 9c, the top plate 9a corresponds to the bulges 7a and 7b of the cassette case 1. A substantially trapezoidal notch 10 is formed in the bottom plate 9a and the bottom plate 9b.
a and 10b are provided. Further, there are holes corresponding to the reel shaft insertion holes 8a and 8b of the cassette case 1 when the tape cassette is held between the top plate 9a and the bottom plate 9b with the front face facing the back plate 9c. A cylindrical recess 11 is provided on the upper end side of the lower plate 9b.
The upper surface plate 9 is provided with substantially hexagonal columnar projections 11 and 12 having shapes a and 12a, and is fitted into the recesses 11a and 12a of the projections 11 and 12.
Cylindrical convex portions 13a and 13b are provided at a.

According to such a cassette case 9, the front part provided with the central opening 4 and the openings 6a, 6b is made to abut against the back plate 9c, and the reel shaft insertion holes 8a, 8b are provided with protrusions 11, 12 is inserted, and the tape cassette is mounted on the lower plate 9b. At this time, reel hub 2 of the tape cassette
a and 2b are hexagonal prism-shaped protrusions 1 of the cassette case 9;
1 and 12, and the reel hubs 2a and 2b are locked so that they cannot freely rotate. Further, the lower surface of the cassette case 1 and the lower surface plate 9b are in close contact, and the bulge 7b on the lower surface side of the cassette case 1 is in contact with the lower surface plate 9.
The bulging portion 7b and the lower surface plate 9b are located in the notch 10b of the portion b, so that the bulging portion 7b and the lower surface plate 9b are flush with each other. After that, the top plate 9
a is closed. At this time, the bulge 7a on the top side of the tape cassette is located within the notch 10a of the top plate 9a, so that the bulge 7a and the top plate 9a are flush with each other. In this way, the tape cassette is formed into the central opening 4 and the openings 6a, 6a, 6a, 6a, 6a, 6a, 6a, 6b, 6b, 6b, 6b, 6b, 6b, 6b, 6b, 6b, 6b, 6b, and the front part, as shown in FIG.
b is the back plate 9c of the cassette case 9 shown in FIG.
The reel hubs 2a and 2b are closed by the protrusion 1.
The cassettes are stored in a cassette case 9 in a rectangular shape that is slightly larger than the cassette case 1 and easy to organize, with the cassettes locked so that they cannot rotate freely by the cassettes 1 and 12.

By the way, as shown in FIG. 4, the reel hubs 2a and 2b have center hole side, that is, reel shaft insertion holes 8a and 8b.
Six cylindrical drive pins 1 protruding from the side at equal intervals
4a, 14b, 14c, 14d, 14e, 14f
are provided, and when the tape cassette is stored in the cassette case 9, the drive pins 14a, 1
4b...14f are opposed to the portions of the hexagonal column-shaped protrusions 11 and 12 that are not at the apex, so that the reel hub 2
A is locked so that it cannot be rotated. However, in the cassette case 9 as shown in FIG. 3, the outer peripheral surfaces of the hexagonal columnar projections 11 and 12
Drive pins 14a, 14b of reel hubs 2a, 2b
...14f are in opposing relationship, and when the tape cassette is stored in the cassette case 9, the drive pins 14a, 14b...14f of the reel hubs 2a, 2b are located at the tops of the protrusions 11, 12, as shown in FIG. It often happens that the reel hubs 2a and 2b are tilted inside the cassette case 1 as a result of fitting into the corner parts. The magnetic tape 3 wound around the magnetic tapes 2a and 2b has a level difference, which impairs the appearance, damages the magnetic tape 3, and makes the running of the tape unstable.

Purpose of the invention In view of the above, the object of the present invention is to provide a cassette case with a simple structure that prevents the reel hub from idling and prevents the occurrence of sticking between the drive pin of the reel hub and the rotation stopper plate. .

Summary of the invention This invention consists of a top plate, a bottom plate, and a back plate interposed between the top plate and the bottom plate, which are connected so that the top plate or the bottom plate can be rotated relative to the back plate. None, the bottom plate or the top plate is provided with a protrusion that has a slit and fits into the reel shaft insertion hole of the tape cassette to be stored, and the top plate or the bottom plate is provided with a rotation stopper plate that is inserted into the slit. The reel hub of the tape cassette is prevented from rotating when the tape cassette is held between the two, and the reel hub of the tape cassette can be prevented from spinning with a simple structure. , there is an advantage in that it is possible to prevent the occurrence of sticking between the drive pin of the reel hub and the rotation stopper plate.

Embodiment Hereinafter, an embodiment of the cassette case of the present invention will be described with reference to FIGS. 6 to 8.
In FIGS. 6 to 8, parts corresponding to those in FIGS. 1 to 5 are denoted by the same reference numerals, and detailed explanation thereof will be omitted.

In this example, as shown in FIGS. 6 and 7, the tape cassette case 1 is held between the top plate 9a and the bottom plate 9b with the front face facing the back plate 9c. reel shaft insertion hole 8
Cylindrical projections 15 and 16 having slits 15a and 16a parallel to the axial direction are provided on the lower surface plate 9b corresponding to the projections a and 8b, respectively. In this case, the outer diameter of the protrusions 15, 16 is made slightly smaller than the distance between the opposing drive pins 14a, 14d of the reel hubs 2a, 2b, and when the reel hubs 2a, 2b and the protrusions 15, 16 are fitted together. reel hub 2
a, 2b can rotate freely, and three ribs 15c, 16 are provided in the center holes 15b, 16b of the projections 15, 16 at equal intervals parallel to the axial direction.
c, and the center holes 15b of these protrusions 15, 16,
When a projection of a top plate 9a, which will be described later, is fitted into the inside of the projection 16b, it is slightly elastically deformed and this fitting is maintained.

On the other hand, the projections 15, 1 of the lower plate 9b are attached to the upper plate 9a.
Cylindrical protrusions 17 and 18 are provided corresponding to the center holes 15b and 16b of the bottom plate 9b, respectively, and plate-shaped rotation prevention plates 17a and 18a are provided corresponding to the slits 15a and 16a of the protrusions 15 and 16 of the bottom plate 9b, respectively. establish. In this case, the rotation prevention plates 17a and 18a are
The thickness of the rotation prevention plates 17a and 18a is made slightly thinner than the interval between the slits 15a and 16a so that they can be inserted into the slits 15a and 16a of No. 5 and 16,
The ends of the rotation prevention plates 17a and 18a facing the lower plate 9b are tapered, and the protrusions 17 and 18 on the upper plate 9a correspond to the protrusions 1 on the lower plate 9b.
When fitted into the center holes 15b, 16b of the protrusions 15, 16, the rotation prevention plates 17a, 18a project outward from the protrusions 15, 16 by a predetermined amount. The rest of the structure is the same as the cassette case 9 shown in FIG. 3 above.

According to such a cassette case 9, the front part provided with the central opening 4 and the openings 6a, 6b is made to abut against the back plate 9c, and the reel shaft insertion holes 8a, 8b are provided with protrusions 11, 12 is inserted, and the tape cassette is mounted on the lower plate 9b. At this time, reel hub 2 of the tape cassette
Although the reel hubs 2a and 2b fit into the protrusions 15 and 16 of the cassette case 9, the reel hubs 2a and 2b are allowed to rotate freely. Further, the bulge 7b on the lower surface side of the cassette case 1 is located at the notch 1 of the lower surface plate 9b.
0b, the bulging portion 7b and the lower plate 9b are flush with each other. After that, the top plate 9a is closed. At this time, as shown in FIG.
The reel hub 2 is located near the slits 15a and 16a.
If the drive pins 14a of a and 2b are located,
The protrusions 1 are placed in the center holes 15b and 16b of the protrusions 15 and 16.
7 and 18 are fitted together, and the rotation prevention plates 17a and 18a are inserted into the slits 15a and 16a of the protrusions 15 and 16.
When the reel hubs 2a and 2b are inserted, the drive pins 14 of the reel hubs 2a and 2b located near the slits 15a and 16a
The rotation prevention plates 17a and 18a abut against the outer peripheral surface of the cylinder a. When the top plate 9a is completely closed, the reel hubs 2a and 2b rotate so that the drive pin 14a does not get in the way of the rotation plates 17a and 18a, as shown in FIG. It does not tilt diagonally with respect to 1. Furthermore, protrusions 15 and 16 provided on the lower plate 9b
When the rotation prevention plates 17a, 18a of the protrusions 17, 18 provided on the top plate 9a are fitted into the slits 15a, 16a, the drive pin 14 of the reel hub 2a of the tape cassette 1 placed on the protrusions 15, 16 is inserted into the slits 15a, 16a.
a, 14b, 14c, 14d, 14e, 14f, one end face of which fits into the slit 15a, 16a and partially protrudes from the rotation stopper plate 17a, 18a;
Even if biting occurs due to contact with the end face of
Protrusions 15 provided in the slits 15a, 16a,
16 and protrusions 17, 18 provided on the rotation stop plates 17a, 18a are provided separately on the lower surface plate 9b and the upper surface plate 9a, so that the rotation prevention plates 17a, 18a are provided within the slits 15a, 16a so that the diameter of the rotation stop plates 17a, 18a is Since the reel hub 2a rotates clockwise or counterclockwise as shown in FIG. 9 and comes off the end surfaces of the rotation stopper plates 17a and 18a, no sticking phenomenon occurs.
Further, as shown in FIG. 3, the bulge 7a on the top side of the tape cassette is located within the notch 10a of the top plate 9a, so that the bulge 7a and the top plate 9a are flush with each other. In this way, the tape cassette is opened in the central opening 4 and openings 6a and 6b on the entire surface as shown in FIG.
is closed by the back plate 9c, and the reel hub 2a,
The reel hubs 2a and 2b are rotated by the rotation stopper plate 17 without causing the reel hubs 2b to tilt diagonally with respect to the cassette case 1.
The cassettes are stored in a rectangular shape that is slightly larger than the cassette case 1 and easy to organize while being locked so that they cannot rotate freely by the cassettes 18a and 18a.

As described above, according to the cassette case 9 of this example, the upper surface plate 9a, the lower surface plate 9b, and the upper surface plate 9
a and a rear plate 9c interposed between the lower plate 9b, the upper plate 9a can be rotated relative to the rear plate 9c, and the slits 15a, 16
The lower plate 9b is provided with protrusions 15 and 16 that fit into the reel shaft insertion holes 8a and 8b of the tape cassette to be stored.
Rotation prevention plates 17a and 18a inserted through the tape cassettes a and 16a are provided so that the reel hubs 2a and 2b of the tape cassette cannot be rotated by the rotation prevention plates 17a and 18a when the tape cassette is clamped between the upper surface plate 9a and the lower surface plate 9b. Therefore, with a simple configuration, the reel hubs 2a, 2b can be locked so that they cannot rotate freely by the rotation prevention plates 17a, 18a, without causing the reel hubs 2a, 2b to tilt diagonally with respect to the cassette case 1. Thus, a cassette case is obtained in which no sticking phenomenon occurs between the rotation prevention plates 17a, 18a provided on the cassette case 9 and the drive pins 14a to 14f of the reel hub 2a.

In the above embodiment, the upper plate 9a is rotatable relative to the rear plate 9c, but even if the lower plate 9b is rotatable relative to the rear plate 9c, the same effect as in the above embodiment is not achieved. It is easy to understand that similar effects can be obtained. Furthermore, it goes without saying that the present invention is not limited to the above-described embodiments, and can take various other configurations without departing from the gist of the present invention.

Effects of the invention According to the cassette case of the present invention, the top plate, the bottom plate, and the back plate interposed between the top plate and the bottom plate are connected, and the top plate or the bottom plate is connected to the back plate. The lower plate is provided with a protrusion that fits into the reel shaft insertion hole of the tape cassette to be stored and has a slit, and the upper plate is provided with a rotation prevention plate that is inserted into the slit. Since the reel hub of the tape cassette cannot be rotated by the rotation stop plate when the tape cassette is held between the two, the reel hub can be prevented from idling with a simple structure, and the bite between the rotation stop plate and the drive pin of the reel hub can be prevented. A cassette case that does not cause this phenomenon can be obtained.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of a tape cassette, Fig. 2 is a perspective view showing an example of a cassette case, and Fig. 3 is a perspective view showing the tape cassette of Fig. 1 housed in the cassette case of Fig. 2. 4 and 5 are schematic diagrams for explaining the operation of FIG. 2, respectively.
FIG. 6 is a perspective view showing one embodiment of the cassette case of the present invention, FIG. 7 is a schematic diagram for explaining the main parts of FIG. 6, and FIGS. 8 and 9 respectively illustrate the operation of FIG. 6. It is a schematic diagram provided for explanation. 1 is a cassette case, 1a and 1b are upper and lower halves, 2a and 2b are reel hubs, 3 is a magnetic tape, 4 is a central opening, 6a and 6b are openings, and 7a and 7b are bulges, respectively. Department,
8a and 8b are reel shaft insertion holes, 9 is a cassette case, 9a, 9b, and 9c are a top plate, a bottom plate, and a back plate, respectively; 10a and 10b are cutouts, respectively;
15 and 16 are protrusions, respectively, 15a and 16a are slits, and 17a and 18a are rotation stopping plates, respectively.

Claims (1)

[Scope of Claim for Utility Model Registration] A cassette case in which a top plate and a bottom plate are connected with a back plate interposed therebetween, and the top plate or the bottom plate can be rotated relative to the back plate. A cylindrical protrusion with a slit in part is provided on the lower plate to fit into the reel shaft insertion hole of the tape cassette to be stored; A rotation prevention plate is provided so that the rotation prevention plate can move in the diametrical direction of the projection within the slit when the tape cassette is held between the upper surface plate and the lower surface plate, and the rotation prevention plate A cassette case characterized in that the reel hub of the tape cassette cannot be rotated.