JPH08310585A - Housing case for magnetic recording tape cassette - Google Patents

Abstract

PURPOSE: To prevent a lid from opening halfway due to reaction of a hinge. CONSTITUTION: A tape cassette housing case 1 comprises a case body 2 for receiving a tape cassette, a lid 6 connected to a rear end of the case body 2 via hinges 3, 5 for opening/closing an opening of the case body 2, and a main lock 8 connected to a front end of the case body 2 via a hinge 7 for locking the lid 6 in a closed state. The case body 2 and the lid 6 are equipped with positioning recess and protrusion 12 which are fitted to each other while the lid 6 is closed. A sub-lock 21 comprising a protrusion 22 and a protrusion fitting groove 23 which engage with each other to keep the lid 6 closed when the recess and the protrusion 11, 12 are fitted is provided on sides 11a, 11b, 12a (,12b) of the recess and the protrusion 11, 12.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is generally used for storing or transporting large and heavy tape cassettes such as digital video tape cassettes and digital data tape cassettes used in broadcasting stations. The present invention relates to a tape cassette storage case called a cassette carrying case.

[0002]

2. Description of the Related Art Commercially available tape cassettes have become large in size in order to improve image quality and extend recording time. For example, a tape cassette for digital recording / playback has a width of 366 m.
m, a vertical width of 206 mm, and a thickness of 33 mm,
Its weight is also extremely large.

A magnetic recording tape cassette storage case (hereinafter simply referred to as a tape cassette storage case) for storing the above-mentioned commercial tape cassette is known.

FIG. 9 shows a conventional tape cassette storage case 1.
It is a side view of 01.

The tape cassette housing case 101 includes a case body 102 for housing a tape cassette 111 such as a digital video tape cassette, and the case body 102.
A rear surface portion 104 connected to the rear end side through a first hinge portion 103, and a second hinge portion 105 on the rear surface portion 104.
And a lid portion 106 that is connected to the casing body portion 102 to open and close the opening of the casing body portion 102, and the casing body portion 102.
A main lock portion 108 that is continuously provided on the front end side of the above through a third hinge portion 107 and that keeps the lid portion 106 closed is provided.

Then, when the tape cassette 111 is housed in the case body 102, the lid 106 is closed, and the main lock 108 is rotated in the locking direction about the third hinge 107, As shown in FIG. 10, the engaging portion 10 provided at the tip of the main lock portion 108.
9 engages with the engaged portion 110 provided on the lid portion 106 to lock the lid portion 106 in the closed state.

The main lock portion 108 has a lock hooking portion 111 on the outside of the engaging portion 109.

The main lock portion 108 hooks the finger rest on the finger hook portion 111 and rotates clockwise around the third hinge portion 107 as shown in FIG. The engagement of the engagement part 110 is released, and the lock of the lid part 106 is released.

[0009]

By the way, in the conventional tape cassette storage case 101, when the lock of the lid portion 106 by the main lock portion 108 is released, as shown in FIG.
As shown in FIG. 1, the first and second hinge portions 103,
The reaction force of 105 causes the lid 106 to be in a slightly opened state (so-called half-opened state).

If the lid 106 is left slightly open for a long time, dust or the like will enter the case body 102 and adversely affect the tape cassette housed in the case body 102. .

The present invention provides a tape cassette storage case provided with a sub-lock portion that prevents the lid portion from being opened by the reaction force of the hinge portion even if the lock by the main lock portion is released. It is a solution to the problem.

[0012]

According to the present invention, there is provided a case main body for accommodating a tape cassette and a rear end side of the case main body, which are connected to each other via a hinge, and the opening of the case main body is provided. A tape cassette storage case comprising: a lid portion that opens and closes the lid, and a main lock portion that is connected to the front end side of the case body portion via a hinge portion and locks the lid portion in a closed state. On the front end sides of the case body and the lid, positioning recesses and protrusions are provided which are fitted to each other when the lid is closed, and the recesses and protrusions are provided on the side surfaces of the recesses and protrusions. A sublock portion was provided that engaged with each other when the portions were fitted to maintain the lid closed.

[0013]

When the lid portion is placed on the case body portion and the lid portion is closed, the case body portion and the positioning recesses and protrusions provided on the front end side of the lid portion fit into each other, and The sub-lock portions provided on the side surfaces of the concave and convex portions are engaged with each other to lock the lid portion. Therefore, even if the lock of the lid portion by the main lock portion is released, the lid portion is kept in the locked state by the sub-lock portion and is prevented from becoming a half-open state by the reaction force of the hinge portion.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a tape cassette storage case of the present invention will be described with reference to FIGS.

FIG. 1 is a perspective view showing a state in which the tape cassette storage case 1 is opened, and FIG. 2 is a perspective view before the tape cassette storage case 1 is closed and locked.

The tape cassette storage case 1 has a case body 2 for accommodating a tape cassette, and a back face portion 4 which is connected to the rear end of the case body 2 through a thin first hinge portion 3. And the case main body 2 which is connected to one end of the back surface 4 via a thin second hinge portion 5.
And a lid 6 that opens and closes the opening of the case, and is connected to the front end side of the case body 2 through a thin third hinge portion 7, and a main lock that locks the lid 6 in the closed state. It has a section 8.

The case body 2 is a rectangular bottom plate 2.
a and a front wall 2b erected on the front end side of the bottom plate 2a
And the first and second side walls 2c and 2d which are erected on both left and right sides of the bottom plate 2a.
A pair of hubs 9 and 10 are provided on the inner surface of the.

When the tape cassette is housed in the case body 2, the pair of hubs 9 and 10 penetrate into the center holes of the pair of reels of the tape cassette so that these reels or tape cassettes can be accommodated in the case. It is designed to prevent movement.

Similar to the case main body 2, the lid 6 has a rectangular bottom plate 6a, a front wall 6b erected on the front end side of the bottom plate 6a, and a left side of the front wall 6a. It is provided with first and second side walls 6c and 6d which are erected on both right sides.

When the lid portion 6 is superposed on the case body portion 2, the front wall 6b of the lid portion 6 and the first and second walls are formed.
The front end surfaces of the side wall portions 6c and 6d overlap the front end wall 2b of the case body portion 2 and the front end surfaces of the first and second side wall portions 2c and 2d, so that the so-called lid portion is closed. It is like this.

The front wall 2b of the case body 2 and the front end wall of the front wall 6b of the lid 6 are provided with a first concave portion 11 and a first convex portion 12 which are fitted to each other.

The second side plate 2d of the case body 2 and the second side 6d of the lid 6 are provided with a second recess 13 and a second protrusion 14 which are fitted to each other. It is provided.

The first concave and convex portions 11 and 12 are fitted to each other when the lid is closed so that the case main body portion 2 and the lid portion 6 are in the first and second side wall direction (see FIG. (1) A-A direction) to prevent the positional deviation.

The second concave and convex portions 13 and 14 are fitted to each other when the lid is closed, so that the case main body 2 and the lid 6 can be moved toward the front wall and the rear surface (see B in FIG. 1). Prevents misalignment in the (-B direction).

As shown in FIG. 3, the first recess 11 is formed.
Both side surfaces 11a, 11b of the first and the both side surfaces 12 of the first convex portion 12
a and 12b, the first convex portion 1 in the first concave portion 11
A sub-block portion 21 is provided which engages with each other when the two are fitted and locks the lid in a closed state.

The sub-block 21 has protrusions 22 and 2 formed on both side surfaces 11a and 11b of the first recess 11.
2 and the projection fitting grooves 23, 23 formed on both side surfaces 12a, 12b of the first convex portion 12 respectively.

Then, as shown in FIG. 4, when the first concave and convex portions 11 and 12 are fitted to each other, the protrusion 22 is formed.
Is fitted in the projection fitting groove 23, and the lid portion 6 is in a state of being sub-blocked (temporarily fixed) to the case body portion 2.

At the center of the front wall 6b of the lid portion 6, a finger hook portion 31 for hooking a fingertip when releasing the sub lock is provided.
Is provided.

As shown in FIG. 5, the finger hook 31 is
It is formed by recessing a part of the front wall 6b of the lid 6.

As described above, the lid 6 is provided on the case body 2.
When the two are overlapped with each other, the first concave portions and the convex portions 11 and 12 and the second concave portions and the convex portions 13 and 14 are fitted to each other, and the case main body portion 2 and the lid portion 6 are displaced from each other in the front / rear and left / right directions. In addition to being prevented, it is sub-blocked by the sub-block portions 21 provided on both side surfaces of the first concave and convex portions 11 and 12.

Thereafter, as shown in FIG. 5, if the main lock portion 8 is rotated counterclockwise in FIG. 5 about the third hinge portion 7, it is provided at the tip of the main lock portion 8. The engaging portion 41 engages with the engaged portion 42 provided on the lid portion 6, and the main lock portion 8 brings the case main body portion 2 and the lid portion 6 into the main locked state. . The main lock portion 8 has a finger hook portion 43 for releasing the main lock on the outer side of the engagement portion 41.

The tape cassette storage case 1 of the embodiment is constructed as described above.

Therefore, even if the lock by the main lock portion 8 is released, the lid portion 6 and the case body portion 2 are locked by the sub-block portion 21, so that the first and second portions are locked. The lid 6 is prevented from becoming a half-open state by the reaction force of the hinges 3 and 5.

Then, by putting a fingertip on the finger hook portion 31 provided on the lid portion 6 and rotating the lid portion 6 in the direction of separating from the case body portion 2, the case body portion by the sub-block portion 21. The sub block of 2 and the lid 6 is released, and the lid 6 is opened.

In the above embodiment, the sub lock unit 2
Although the case where 1 is composed of the projection 22 and the projection fitting groove 23 is shown, as shown in FIG. 6, as shown in FIG.
The side surfaces 11 a, 11 b, 12 a, 12 b of the first and the second side 12 may be provided with protrusions 24 and 25, respectively, and the protrusions 24 and 25 may be engaged with each other.

Further, in the above-described embodiment, the case where the finger hook portion 31 for releasing the sub lock is formed by forming the concave portion in the front wall 6b of the lid portion 6 is shown, but it is shown in FIGS. As described above, the notch 32 is formed in the front wall 2b of the case body 2.
And the notch 32 allows the front wall 6b of the lid 6 to be formed.
It is also possible to expose one end of the front end surface (lower surface) and hang the fingertip on the exposed front end surface.

[0037]

The tape cassette storage case of the present invention has the following effects.

(1) In the tape cassette storage case according to the first aspect, a case body portion whose rear end side is connected by a hinge portion and a concave portion and a convex portion for positioning which are fitted to each other are provided on the front end side of the lid portion. Since the sub-lock parts that engage with each other on the side surfaces of the concave and convex portions to lock (temporarily fix) the lid in the closed state are provided, if the concave and convex portions are fitted, the side surfaces of these concave and convex portions are fitted. The sub-lock part provided on the front part also positively engages with the lock function.

Further, since the sub-block portion is arranged on the opposite side of the hinge portion, it is possible to reliably prevent the lid portion from being half-opened by a weak force due to the reaction force of the hinge portion.

(2) In the tape cassette storage case of the second aspect, since the finger hook portion is provided on the lid portion, the finger hook portion is hooked on the finger hook portion to rotate the lid portion in the opening direction. It is possible to easily release the sub-block by the sub-block portion and open the lid.

[Brief description of drawings]

FIG. 1 is a perspective view of a tape cassette storage case.

FIG. 2 is a perspective view of a state before locking.

FIG. 3 is a front view of the state before locking.

FIG. 4 is a front view of the locked state.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a front view showing a modified example of the sub block portion.

FIG. 7 is a perspective view showing a modified example of the finger hook portion for releasing the block lock.

8 is a cross-sectional view taken along line BB of FIG.

FIG. 9 is a side view of a conventional example.

FIG. 10 is a sectional view of a locked state.

FIG. 11 is a side view showing a problem of the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Tape cassette storage case 2 ... Case main body part 3 ... 1st hinge part 5 ... 2nd hinge part 6 ... Lid part 8 ... Main lock part 11, 12 ... Positioning concave / convex part 21 ... Sablock part 31 ... Finger hook for releasing the block lock

Claims (2)

[Claims] 1. A case main body for accommodating a tape cassette, a lid part which is connected to a rear end side of the case main part via a hinge part, and which opens and closes an opening of the case main body part, A magnetic recording tape cassette storage case, comprising: a main lock part, which is connected to a front end side of a case body part via a hinge part, and locks the lid part in a closed state. Has, on the front end side, a concave portion and a convex portion for positioning which are fitted to each other when the lid portion is closed, and the side surfaces of the concave portion and the convex portion are fitted with the concave portion and the convex portion. A magnetic recording tape cassette storage case, characterized in that it has sub-blocks which are sometimes engaged with each other to keep the lid closed. 2. The magnetic recording tape cassette storage case according to claim 1, wherein the front wall of the lid portion has a finger hook portion for releasing the lock.