JPH05221478A - Container case of disc type recording media - Google Patents

Abstract

PURPOSE:To obtain an inexpensive container case for disc type recording media of which the upper and lower covers are automatically opened to a specified angle when a locking mechanism is released. CONSTITUTION:The upper cover and the lower cover 1A, 1B are opened to a specified angle as a stable condition. When the upper and lower covers are closed to lock them with a locking mechanism 1L, such a force as the hinge 1H becomes straight is applied on the curved hinge 1H. And the reaction force to return to the stable curved condition is acted on the hinge 1H. A force is brought in the direction to open the upper cover 1A and the lower cover 1B respectively. Accordingly, when the locking mechanism 1L is released, the upper cover 1A and the lower cover 1B is opened to a specified angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case for accommodating a disk-shaped recording medium such as a floppy disk.

[0002]

2. Description of the Related Art For example, there is a case for accommodating a disk-shaped recording medium such as a 3.5-inch floppy disk.
As this case, recently, there is a thin storage case using a highly flexible synthetic resin material (for example, polypropylene or polyethylene) in consideration of fashionability and hermeticity.

FIG. 4 is a schematic perspective view of a thin storage case 2 using the above-mentioned highly flexible synthetic resin material.

In FIG. 1, the thin storage case 2 has an upper lid 2A and a lower lid 2B. The upper lid 2A and the lower lid 2B are rotatable about the hinge portion 2H, and one or a plurality of floppy disks 3 are housed between the upper lid 2A and the lower lid 2B. Then, the upper lid 2A and the lower lid 2B
When and are closed, a lock mechanism 2L that engages with each other is formed on the upper lid 2A and the lower lid 2B, and the lock mechanism 2L locks the upper lid 2A and the lower lid 2B. When opening the upper lid 2A and the lower lid 2B, the lock mechanism 2L
After performing the unlocking operation, the upper lid 2A and the lower lid 2B are manually rotated about the hinge portion 2H.

[0005]

When the lock mechanism 2L is unlocked in the thin storage case 2 described above, the upper lid 2A and the lower lid 2B automatically open to a predetermined angle. It is convenient in terms of operability.

Therefore, for example, as shown in FIG. 5, if a spring 2S is arranged between the upper lid 2A and the lower lid 2B, the repulsive force of the spring 2S causes the upper lid 2A and the lower lid 2B to automatically move. It can be configured to open up to a predetermined angle.

However, if the structure shown in FIG. 5 is used, the spring 2S is required, and the number of parts increases. The spring 2S is attached to the upper lid 2A and the lower lid 2B.
It also requires a process to attach it to, which increases the price. Furthermore, since it is necessary to store the spring 2S in the storage case 2, the storage case 2 may become large.

An object of the present invention is to inexpensively realize a storage case for a disk-shaped recording medium in which the upper lid and the lower lid are automatically opened to a predetermined angle when the lock mechanism is released. It is to be.

[0009]

To achieve the above object, the present invention provides an upper lid, a lower lid, a plate-shaped hinge portion connected to one side portion of the upper lid and one side portion of the lower lid, and an upper lid. And a lock mechanism formed on each of the lower lid and engaged with each other,
In a storage case made of a synthetic resin material for storing the disc-shaped recording medium on the inner surface side of the upper lid and the lower lid, a plate-shaped hinge portion is connected, and one side portion of the upper lid and the lower lid is
Both are curved with a predetermined curvature, and the plate-shaped hinge portion is characterized in that it is joined to the upper lid and the lower lid along one side portion of the curved shape.

[0010]

The operation is stable when the upper lid and the lower lid are opened at a predetermined angle. Then, close the top and bottom lids,
When locked by the lock mechanism, a force is applied to the curved hinge portion so that the hinge portion becomes linear. Then, a repulsive force for returning to the curved state, which is a stable state, is generated in the hinge portion, and this repulsive force applies a force in a direction in which the upper lid and the lower lid open. Therefore, when the lock mechanism is released, the upper lid and the lower lid are automatically opened to a predetermined angle.

[0011]

1 is a perspective view of a thin storage case 1 according to an embodiment of the present invention in an open state, and FIG. 2 is a perspective view of the thin storage case 1 in a closed state. , Fig. 3
FIG. 3 is a top view of the thin storage case 1. This embodiment is an example of a thin storage case for storing a 3.5-inch floppy disk, which is made of polypropylene or polyethylene having a high flexibility (flexural modulus of about 13,000 k.
g / cm ² ) is used.

In FIG. 1, 1A is an upper lid, 1B is a lower lid,
1H is a hinge part. Then, as shown in FIG. 3, one side portion 1AS of the upper lid 1A has a curved shape with a predetermined radius of curvature, for example, a radius of curvature of 1800 mm to 2200 mm.
It is a curve in a direction in which it projects with respect to the other opposing side portions. Further, the one side portion 1BS of the lower lid 1B corresponding to the one side portion 1AS of the upper lid 1A is also a curve having a radius of curvature equivalent to that of the one side portion 1AS. The hinge portion 2H has a plate shape, and both long side portions of the hinge portion 2H have upper lids 1A.
The one side portion 1AS and the one side portion 1BS of the lower lid 1B are joined (molded integrally). That is, the hinge portion 2H has a curved shape with a radius of curvature equivalent to that of the one side portions 1AS and 1BS.

As shown in FIG. 1, the stable state is a state in which the upper lid 1A and the lower lid 1B are opened by a predetermined angle (for example, about 30 degrees). Each of the upper lid 1A and the lower lid 1B is formed with a lock mechanism 1L that engages with each other. Therefore, when the upper lid 1A is rotated in the direction of the arrow AR and the upper lid 1A and the lower lid 1B are closed, the lock mechanism 1
By L, the closed state of the storage case 1 is maintained as shown in FIG. When the upper lid 1A and the lower lid 1B are closed, a force acts on the hinge portion 1H so that the hinge portion 1H becomes linear. Against this linear force, the hinge portion 1H has a stable repulsive force, that is, the upper lid 1A and the lower lid 1B.
The force acts in the direction where and open.

Therefore, when the locked state of the lock mechanism 1L is released, the upper lid 1A and the lower lid 1B are automatically opened to a predetermined degree and the state shown in FIG. 1 is obtained.

As described above, according to the embodiment of the present invention, one side portion 1AS of the upper lid 1A and one side portion 1B of the lower lid 1B.
S has a curved shape having a predetermined radius of curvature, the long side portions of the plate-shaped hinge portion 1H are joined along the both side portions 1AS and 1BS, and the upper lid 1A and the lower lid 1B are opened by a predetermined degree. It is configured to be in a stable state. Therefore, a thin floppy disk storage case that automatically opens the upper lid 1A and the lower lid 1B to a predetermined angle when the lock mechanism 1L is released without adding special parts such as springs is realized. it can.

In the above-described embodiment, the material of the storage case 1 is polypropylene or polyethylene, but other materials such as synthetic resin may be used. When other materials are used, the radii of curvature of the one side portion 1AS of the upper lid 1A and the one side portion 1BS of the lower lid 1B are determined according to the bending elastic modulus of the material used.

Further, the present invention can be applied not only to the storage case of the floppy disk but also to the storage case of another disk-shaped recording medium.

[0018]

As described above, according to the present invention, the upper lid, the lower lid, the plate-shaped hinge portion connected to one side portion of the upper lid and the one side portion of the lower lid, the upper lid and the lower lid, respectively. A locking mechanism formed on each of the above and engaging with each other, and a plate-shaped hinge portion is connected in a storage case made of a synthetic resin material for storing a disk-shaped recording medium on the inner surface side of the upper lid and the lower lid Since both sides of the upper lid and the lower lid are curved with a predetermined curvature, the plate-shaped hinge portion is joined to the upper lid and the lower lid along the curved one side. By performing the unlocking operation of the lock mechanism, a storage case in which the upper lid and the lower lid automatically open to a predetermined angle can be realized at low cost without adding special parts.

[Brief description of drawings]

FIG. 1 is a perspective view of a storage case according to an embodiment of the present invention in an open state.

FIG. 2 is a perspective view of the storage case according to the embodiment of the present invention in a closed state.

FIG. 3 is a top view of a storage case that is an embodiment of the present invention.

FIG. 4 is a perspective view of an example of a conventional storage case.

FIG. 5 is a perspective view of an example in which a spring is added to a conventional storage case.

[Explanation of symbols]

1 ... Thin storage case, 1A ... Upper lid, 1B ... Lower lid, 1H ...
Hinge part, 1L ... Lock mechanism, 1AS, 1BS ... One side part.

Claims (1)

[Claims] 1. A lock mechanism formed on each of the upper lid and the lower lid, a plate-shaped hinge portion coupled to one side portion of the upper lid and one side portion of the lower lid, and engaging with each other. In a storage case made of a synthetic resin material for storing a disk-shaped recording medium on the inner surface side of the upper lid and the lower lid, a plate-shaped hinge portion is connected, and one side portion of the upper lid and the lower lid is A storage case for a disk-shaped recording medium, characterized in that both are curved with a predetermined curvature, and the plate-shaped hinge portion is joined to the upper lid and the lower lid along one side portion of the curved shape. .