JP2570453Y2 - Index card - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an index card of a case for accommodating a magnetic tape cassette, and more particularly to an index card for accommodating a magnetic tape cassette in a pocket-like portion for accommodating a front opening of the cassette. The structure of the index card.

[0002]

2. Description of the Related Art Magnetic tape cassettes (hereinafter, simply referred to as "cassettes") used for audio, video, etc.
Store in a magnetic tape cassette storage case.
The magnetic tape cassette storage case is used for the purpose of protecting the entire cassette from external impacts and preventing dust from entering the cassette. In particular, cassettes and recording / reproducing equipment in recent years have become high-performance, and even if a small amount of dust adheres to the magnetic recording tape, troubles such as signal dropout are likely to occur, so that dust can be prevented from entering the cassette. Must be prevented.

In view of the above, a storage case for a magnetic tape cassette is used as described above. For example, the configuration of a cassette for a cassette for audio or the like is as follows. That is, a plastic case including a lid portion having a pocket into which a cassette is inserted and a casing portion pivotally attached to the lid portion and capable of opening and closing like a door, or a plate-like resin sheet punched into a predetermined shape, for example, is bent. For example, a so-called book case type storage case for a magnetic tape cassette which is assembled into a book case with an adhesive or the like is used.

By the way, for convenience of storage management, an index card 11 as shown in FIG. 4 is attached to the storage case for the magnetic tape cassette so that desired items regarding the stored cassette can be described. . Figure 4
The magnetic tape cassette storage case 30 shown in FIG. 1 has a lid 2 having a pocket 4 and a casing 8 shown by an imaginary line pivotally openably and closably (a structure in which a shaft of the casing is fitted into a shaft hole 7a). It is the structure which did. The index card 11 attached to the cassette storage case 30 has one end edge bent along the bending lines 12 and 13 to form a bent portion 15, and in the bent state, the cross section is formed in a substantially U-shape. You.

[0005] The index card 11 is mounted so that the bent portion is inserted into the pocket 4 of the lid 2 of the cassette storage case 30. The cassette storage case 3 in which desired items such as titles written on the surface of the upright wall 13a of the bent portion 15 are transparent.
It is configured so that it can be read from the transparent rear wall 6 of the "0". By using the index card 11,
Since the bent portion 15 of the index card 11 covers the opening of the magnetic tape cassette, the function of protecting the cassette can be enhanced.

As described above, the index card 11 having one end edge bent in a U-shaped cross section along the bending lines 12 and 13 has a height l in the cassette thickness direction of the upright wall 13a.
₂ is the storage height L in the thickness direction of the cassette in the pocket 4.
₂ and are substantially equally formed, and bent portion height l ₁ bent tip 15 is larger than the cassette thickness direction height L _2.

Therefore, when the index card 11 is inserted into the pocket 4, the bent portion 15 of the index card 11 exerts an urging force to expand, so that the index card 11 is firmly fixed in the pocket 4.
Even when the magnetic tape cassette is not stored in the cassette storage case 3, in other words, in the pocket 4, it does not fall out of the case. Furthermore, since the bent front end of the index card 11 comes into contact with the small wall 5 of the pocket 4 so as to stick to the small wall 5 by the elasticity of the card itself, it is possible to avoid a trouble that the front end is caught by the cassette when inserting the cassette.

[0008]

However, when the index card 11 configured as described above is inserted into the pocket 4 at a production factory or the like, the insertion resistance is large and smooth mounting is not possible. Had the disadvantage that In particular, when the index card 11 is inserted into the pocket at a high speed by an automatic machine or the like, the air trapped between the pocket 4 and the upright wall 13a of the index card 11 does not escape. There is a problem that the air compression resistance becomes larger than the resistance and the index card itself is bent, which hinders the mounting operation.

It is an object of the present invention to improve the mountability of the index card by configuring the index card so that air does not stay in the insertion portion when the index card is inserted into the pocket.

[0010]

The above-mentioned object of the present invention Means for Solving the Problems], in the configuration index card to insert the bent portion in a pocket formed on the magnetic tape cassette accommodating case, when you to spread within said pocket Biasing force
The bent portion fixed to the pocket is opposed to the innermost side wall of the pocket or the vicinity of the side wall.
Position to reduce air pressure in the pocket during insertion
Insert a pair of ventilation holes in the index card insertion direction
The problem can be solved by an index card characterized by having a symmetry . That is, the index card
By setting <br/> kick the portion folded symmetrical pair of vent holes to the insertion direction, the air interposed between the pocket when the index card inserted is ejected good balance from the vent hole, bent portion Trying to spread in your pocket
The index card fixed to the pocket by the urging force can be stably inserted.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. Although the present invention relates to the index card 11, in order to facilitate understanding of the present invention, the magnetic tape cassette storage case 1 will be described first. As shown in FIGS. 1 and 2, a storage case 1 for a magnetic tape cassette according to the present embodiment has a lid 2 having a pocket 4 into which a front thickening portion of a cassette 20 is inserted.
And a casing portion 8 provided with a pair of anti-rotation protrusions 9 that enter the shaft insertion holes of the cassette 20. The storage case 1 includes a support shaft (not shown) projecting from the left and right inner sides of the casing portion 8 and the pocket 4.
The shaft holes 7a provided in the left and right side walls 7 are fitted with each other.
The pivoting portion allows the casing 8 and the lid 2 to be opened and closed like a door.

The pocket 4 is provided on the side of the lid 2 pivotally connected thereto, and has a large wall surface 3 and left and right side walls 7, a small wall surface 5 opposed to the large wall surface 3, and a back wall 6 which can also be called a bottom wall. It consists of. When the magnetic tape cassette storage case 1 is closed, the small wall 5 of the pocket 4 and the bottom wall of the casing 8 form the same wall. The recess 8a of the left and right side walls 19 of the casing portion 8 and the locking projection 7b of the left and right side walls 7 of the pocket 4 are fitted with each other when the storage case is closed, and do not open unexpectedly when storing the cassette. It has become.

Next, the index card 11 will be described. The index card 11 is formed by bending one end edge into a U-shaped cross section along bending lines 12 and 13. The index card 11 is stored in the storage case 1 for a magnetic tape cassette.
In other words, it is mounted so that the bent portion 15 is inserted into the pocket 4 of the lid 2. The standing wall 13a of the bent portion 15 has two
Two ventilation holes 10 are formed. The operation of the vent 10 will be described later in detail.

By inserting the index card 11 into the pocket 4, desired items such as titles can be read from the rear wall 6 of the transparent magnetic tape cassette storage case 1. In addition, by using the index card 11, the bent portion 15 of the index card 11 covers the opening of the magnetic tape cassette 20, and the function of protecting the cassette can be enhanced by the elastic action of the card. .

Next, a method of mounting the index card 11 will be described. For example, when the magnetic tape cassette 20 is pushed into the magnetic tape cassette storage case 1 so as to be sandwiched between the index cards 11, the bent portion 15 is located at a front portion of the magnetic tape cassette 20 as shown in FIG. It is pressed inward of the pocket 4 while being bent by the pressing force.

At this time, the air is pushed in front of the upright wall 13a, but since the air hole 10 is formed, the air escapes from the air hole 10. Therefore, air cannot be trapped in front of the upright wall 13a, and even if the insertion speed of the index card 11 is increased, the air compression phenomenon is eliminated, and the index card 11 can be smoothly mounted. When the index card 11 has been mounted, the ventilation hole 10 is closed by the rear wall 6 of the pocket 4, so that the dustproof function is not affected at all.

Further, since the index card 11 is configured such that the size of the bent portion 15 is close to the internal height of the pocket and has an elastic force so that the bent portion is widened, the magnetic tape cassette It does not fall out of the storage case 1 carelessly.

[0018]

[0019]

Although the embodiment of the present invention has been described above, the index card 11 has the following functions and effects in addition to the functions and effects.
Excellent effect in the manufacturing process. That is, the index card 11 is automatically mounted. For this purpose, it is necessary to store the index card 11 in an aligned state and to incorporate the index card 11 into a manufacturing apparatus. here,
Since the index hole 11 is formed in the index card 11, for example, as shown in FIG. 3 , if the guide member 30 is inserted into the air hole 10 and used for positioning, the stacking and the alignment are performed. Etc. can be easily performed.

In the above embodiment, the ventilation hole is provided in the upright wall of the index card. However, the present invention is not limited to this. I just need.
Therefore, for example, it may be provided at the position of the bending line 13 as shown by the imaginary line in FIG. 1 or at the position of the bending line 12 (not shown). In this case, the air that has escaped from the vent hole 10 is effectively discharged from the gap between the index card 11 and the cassette 20, so that the discharged air does not go around the cassette opening, and the magnetic tape is shaken by the air. There is no inconvenience. Further, the shape of the ventilation hole 10 is not limited to a circle, but may be various shapes such as a slit shape.

Further, the present invention is not limited to the above embodiment, but may be a storage case for storing a VHS type cassette or a β type cassette.

[0023]

As described above, the index card of the present invention is located at the position facing the innermost side wall of the pocket into which the index card is inserted or near the side wall.
To the bent part of the index card in the insertion direction.
Since the configuration provided with symmetrical pair of vents Te, folding
Due to the biasing part of the pocket trying to spread in the pocket.
Even if the index card is configured to push air into the pocket by being fixed to the pocket,
When the index card is inserted, air can escape from the air holes, so that it is possible to prevent the air from being trapped in the front insertion portion of the index card, thereby improving the mountability of the index card.
Further, the vent hole since Ru can also be used as a positioning hole when storing overlapping the index card, it is possible to improve the handling properties of the index card. Therefore, according to the present invention, the workability can be improved when the cassette is stored in the magnetic tape cassette storage case together with the index card in an automatic process and shipped.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a partial sectional view showing an embodiment of the present invention.

FIG. 3 shows a state in which the index cards of the present invention are stacked.
It is a perspective view showing a state.

FIG. 4 is a perspective view showing a conventional index card.
You.

[Explanation of symbols]

 1, 25 Storage case for magnetic tape cassette 2 Lid 3 Large wall 4 Pocket 5 Small wall 6, 26 Back wall 7 Left and right side walls 7a Shaft hole 7b Locking projection 8 Casing part 8a Recess 9 Stopper 10 Vent hole 11, 17 Index card 12, 13 bending line 13a standing wall 15a bent portion 19a side wall of casing 20, 21 magnetic tape cassette 30 guide member

Claims (1)

(57) [Scope of request for utility model registration] 1. An index card configured to insert a bent portion into a pocket formed in a case for storing a magnetic tape cassette, wherein the pocket is formed by an urging force to spread in the pocket.
A pair of ventilation holes for reducing air pressure in the pocket at the time of insertion at a position where the bent portion fixed to the pocket is opposed to the innermost side wall of the pocket or near the side wall.
The index card is symmetrical with respect to the insertion direction of the index card.