JP2572322Y2 - Storage case - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a storage case capable of preventing bending in the front-rear direction when the case is closed.

[0002]

2. Description of the Related Art Conventionally, in a box-shaped storage case made of a synthetic resin in which a case body and a lid are connected via a hinge portion, a structure is provided in which the side walls of the case body and the lid are concavely and convexly engaged. The lid is hung on the case body. However, when a force is applied to the case body in the front-rear direction, the engaging portion is easily disengaged, and the storage case is distorted or the lid is opened. In addition, 3-97085
No. 5,10,286 discloses a configuration in which a projection and a recess are engaged with each other. However, the former only engages with an inclined surface or a step, so that even if it is provided on the side wall, the load is applied in the front-rear direction. However, there is a disadvantage that the recesses and protrusions become large, and the side walls on which the recesses are formed are weakened and play occurs.

[0003]

[Problems to be Solved by the Invention] This invention has been made in view of the above circumstances, and its main problem is that the protrusion is formed in a rod shape, and when the protrusion is fitted into the concave portion, the protrusion is formed. An object of the present invention is to provide a storage case in which the tip is in contact with the guide side portion and the projection projects into the recess.

[0004]

In order to solve the above-mentioned problems, in the present invention, a case body and a lid are connected to each other via a hinge portion having a groove, and the lid and the case body are opened and closed. The cover body is provided with a hooking means that can be hooked as much as possible, and a concave portion which is notched in the vertical direction is provided on the side wall on the lid side, and the case body and the lid are provided on the left and right side walls provided on the left and right sides of the case body where the lid overlaps without a gap. In a box-shaped storage case made of a synthetic resin having a projection that engages with the recess when the body is closed, the recess is formed by notching the tip in a substantially semicircular shape, and the recess is formed. The edge on the front side is formed in an arcuate guide side, and the projection is a rod-shaped projection integrally erected along the inner surface of the side wall and extending to a middle position of the side wall. When the lid is closed, the guide edge touches the tip of the Is guided protrusion is configured to plunge into the recess in the portion takes the following technical means of.

[0005]

When the lid is bent via the hinge and the case body is closed, both side walls overlap inside and outside. At this time, the protrusion provided on the side wall of the case main body enters and engages with the concave portion provided on the side wall of the lid. At this time, the guide side portion of the concave portion comes into contact with the tip of the projecting portion that is relatively displaced when closing the lid,
Since the projection is set so as to enter the recess by being guided by the curved portion, the engagement force between the recess and the projection can be increased without increasing the size. As a result, the overlapping side wall is constrained in the front-rear direction, so that even if a force in the front-rear direction is applied to the storage case with the lid closed, stress can be received at the engagement portion between the concave portion and the protrusion, and There is no danger that the case will swing or the lid will open.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a storage case for storing a compact video tape will be described below with reference to the drawings. The storage case 1 shown in FIGS. 1 and 2 is made of synthetic resin, and has a case body 2.
And the lid 3 are connected to each other via the hinge 6. The case main body 2 is erected at the same height so as to cover three sides of the rectangular bottom plate 21, one side of which is connected to the hinge 6, and the remaining edges, and is disposed on the opposite side of the hinge 6. Front wall 22 and left and right side walls 23 arranged on the left and right sides,
24.

On the other hand, the lid 3 is erected so as to cover the rectangular top plate 31 and three sides of the remaining edge excluding the end on the opening side, and is connected to the hinge 6 so as to be connected to the front. A rear wall 32 is disposed so as to face the wall 22, and left and right side walls 33 and 34 are disposed on the left and right sides and are fitted to the side walls 23 and 24 of the case body 2 so as to be overlapped inside and outside. ing. In the present embodiment, the left and right side walls 33 and 34 are fitted inside the side walls 23 and 24 on the case body side.
The hinge portion 6 is configured to have a wide width, and has a shape as shown in the drawing, which is narrower toward the front end. The hinge 6 is formed of a groove having a substantially V-shaped or U-shaped cross section.

In the storage case 1 having the above-described shape, the side walls 33 and 34 on the lid side are closer to the rear (closer to the hinge).
Is formed with a concave portion 4. The concave portion 4 is formed by cutting off the tip in a substantially semicircular shape, the rear edge forming the concave portion 4 extends as an inclined side 41, and the front edge has an arc shape. Guide side portion 42.

When the lid 3 is closed, the guide side portion 42 slightly contacts the tip of the projecting portion 5 which is relatively displaced, and is guided by the curved portion so that the projecting portion 5 enters the concave portion 4. Is set to Thereby, the concave portion 4 can be formed deeply, and the abutment area with the protrusion 5 can be increased, which is preferable.

The side walls 23 and 24 on the case body side are connected to the bottom plate 21 and are vertically erected integrally along the side walls and protrude toward the inside of the case.
Are formed. When the storage case 1 is closed, the tip of the projection 5 fits into the recess 4 with almost no gap. Furthermore, since the protrusion 5 is formed integrally with the bottom plate 21 and the side walls 23 and 24, it also functions as a vertical crosspiece of the case body 2.

Next, at the overlapping portion between the side walls 23 and 24 on the case body 2 side and the side walls 33 and 34 on the lid body 3 side, a locking projection 7 and a locking receiving portion 8 which engage in concave and convex in the left-right direction. Are provided respectively. That is, in this embodiment, the side wall 33 on the lid 3 side,
An engagement receiving portion 8 having a substantially triangular cross section is formed on the inside of each of the outer surfaces of the outer side of the case 34, and protrudes inward from the inner surfaces of the side walls 23 and 24 on the case body 2 side.
An engagement protrusion 7 that can be engaged and disengaged is formed on the engagement receiving portion. The locking projection 7 and the locking receiving portion 8 are disposed closer to the opening side of the side walls 23, 24 and 33, 34, respectively.
3, 24, 33, and 34 are arranged on the hinge portion rear side.

In the present embodiment, the above structure is adopted. Therefore, when the cover 3 is closed, the side walls 23, 2
The side walls 33 and 34 of the lid 3 are gradually fitted inside the cover 4. Then, while the guide side 42 is in contact with the tip of the projection 5, the tip of the projection 5 is made to protrude into the recess 4. At the same time, the locking projections 7 provided in front of the side walls 23, 24
Project into the lock receiving portion 8 on the lid 3 side. This locking projection 7
And the lock receiving portion 8 locks the cover 3 to the case body 2.
And the case closes.

Further, by the engagement between the recess 4 and the projection 5, even if a force is applied to the storage case in the front-rear direction, a load in the front-rear direction can be received. Here, the locking projection 7
And the lock receiving portion 8 are set to be horizontally long so that an engaging force acts in a direction of opening and closing the lid. Therefore, a sufficient engaging force does not act on a load in the front-rear direction. Since the engaging force of the projection 5 and the engagement of the projection 5 make up for this, there is no danger that the engagement between the engagement projection 7 and the engagement receiving portion 8 is released and the lid 3 is opened even if a load is applied in the front-rear direction.

In the present invention, the protruding portion is exemplified by a rod-shaped member, but the shape may be a columnar shape. In addition, the locking projection and the locking receiving portion may be configured to lock the lid and the case body in the opening and closing directions. In addition, it goes without saying that various designs can be changed without changing the gist of the present invention.

[0017]

According to the present invention, it is possible to firmly engage with a simple structure without increasing the size of the uneven engagement. Then, even when a load in the front-rear direction is applied to the storage case, the load can be received by the engagement between the concave portion and the protruding portion, so that deformation of the case can be prevented. Further, even if the load in the front-rear direction is applied to the locking structure for locking the lid and the case body in the opening and closing direction, there is no fear that the locking is released and the lid is opened. Furthermore, the strength of the case body can be increased by forming the protrusions in a rod shape and connecting them to the bottom plate.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an expanded state of a storage case.

FIG. 2 is a perspective view showing a state where a storage case is closed.

FIG. 3 is a sectional view of a main part showing a concave portion and a protrusion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage case 2 Case main body 3 Lid 4 Depression 5 Projection 6 Hinge part 7 Locking protruding part 8 Lock receiving part 23, 24 Side wall 33, 34 Side wall

Claims (4)

(57) [Scope of request for utility model registration] 1. A case body and a lid body are connected to each other via a hinge part formed of a groove, and a latching means for latching the lid body and the case body in an openable and closable manner is provided. Providing a recess notched in the vertical direction, and providing a projection that engages with the recess when the case body and the lid are closed on the side walls provided on the left and right sides of the case body where the lid overlaps without gaps In a storage case made of a box-shaped synthetic resin, a concave portion is formed by notching a tip in a substantially semicircular shape, and a front edge forming the concave portion is formed in an arc-shaped guide side portion. The projection comprises a rod-shaped projection integrally erected along the inner surface of the side wall and extending to a middle position of the side wall. When the lid is closed, the guide side portion is formed at the tip of the projection. Contact with
A storage case, wherein the projection is set so as to enter the recess by being guided by the curved portion. 2. The storage case according to claim 1, wherein the projection is erected from the bottom plate and is integrally erected along the inner surface of the side wall. 3. The latching means comprises a locking projection and a locking receiving portion which engage in a concave and convex manner in the left-right direction at the overlapping portion of the side wall on the case body side and the side wall on the lid body side. The part and the lock receiving part are arranged near the opening side front,
3. The storage case according to claim 1, wherein the recess and the protrusion are arranged rearward on the hinge part side. 4. 4. The storage case according to claim 1, wherein the edge on the rear side forming the concave portion extends rearward as an inclined side.