JPH07276438A - Packaging - Google Patents

Abstract

PURPOSE: To provide a packaging integrated in a sufficiently airtight manner by attatching separately produced connection parts same in shape made of flexible plastic each used as an engaging. jig or a hinge to a superposed container main body in a detachable manner. CONSTITUTION: In a packaging consisting of a bottom portion 31 and a cover portion 32, the bottom portion and the cover portion have horizontal flange- shaped edges 33 formed to the opening parts thereof and grooves 34 in which packings 36 are fitted are provided to the peripheries of the edges 33 and connection parts 38, 39 comprise separate flexible plastic parts and connect the bottom portion 31 and the cover portion 32 at the edge of one of the opening parts to engage both of them at the opposed edge of the other opening part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging having a bottom portion and a cover portion.

[0002]

2. Description of the Related Art Generally, a packaging made of a plastic injection-molded product of this kind is manufactured by separately molding two containers by dividing a hinge part and a locking part into separate parts and then, after die-cutting, fitting the two parts together. A manufacturing method has been adopted in which the bottom and the cover are integrated.

According to another method, a large number of container bodies having the same shape are molded by the same metal mold, and when assembled, two separately manufactured bodies are superposed, and the superposed protruding edges are formed from the outside. A method of using a metal or plastic clamp tool for sealing is adopted.

[0004]

Further, in the latter case, it is almost impossible to use the clamp having the hinge function in view of the airtightness of the container. In view of this point, the present invention has the hinge function. As a clamp tool to have, it is sufficient by detachably attaching separately manufactured flexible plastic same-shaped connecting parts used both as a locking tool and as a hinge to the overlapped container body. It is intended to provide a hermetically integrated packaging.

[0005]

SUMMARY OF THE INVENTION According to the present invention, the above-mentioned problem is solved in that the bottom portion and the cover portion have horizontal flange-shaped edges formed in their openings, and are provided around the edges. A connecting part is formed of a plastic part having a separate flexibility, and has a bottom part and a cover part hinged to one edge of the opening part. , The other opposite edges are locked together, and the bottom part and the cover part are locked by the connecting part,
This is solved by fitting the packing in the groove and creating and maintaining a sealed state between the bottom and the cover.

[0006]

FIG. 1 shows a packaging according to the invention,
This packaging has a plastic bottom portion 31 and a cover portion 32, which are obtained by injection molding with the same shape and size.
And is particularly preferably made of transparent plastic so that the inside can be seen through. In the example shown, the bottom 31 and the cover 32 are generally rectangular in shape and equipped with a horizontal flange-shaped edge 33 with a groove 34.

In this structure, slits 35 are formed along the opposing short sides of the cover portion and the bottom portion, and the connecting parts for fixing the cover portion 32 and the bottom portion 31 together are housed therein. There is. The opening surfaces of the bottom portion 31 and the cover portion 32 are surrounded by a horizontal flange-shaped edge 33, and a groove 34 of the edge 33 is fitted with a plastic packing 36.

Since the bottom portion 31 and the cover portion 32 are made of injection-molded plastic, the depth is not particularly limited. On the other hand, the shape and size of this opening, and thus the shape and size of the edge 33, are always the same, so that they completely overlap at the packaging closing position.

To press the cover portion 32 against the bottom portion 31 and maintain the packaging in the closed position, this can be done by connecting means or other suitable means. However, in the example shown, the packaging is maintained in the closed position by a very practical and inventive method using a connecting piece that can be clipped in the slit 35 of the rim 33.

2 and 3, each plastic connecting part has two flexible, bent-shaped components 38, 39, which are separate production parts and constitute a hinge. The thin plates 40 are connected to each other so as to be integrally symmetrical. Each component 3
Reference numerals 8 and 39 denote a pair of sidewardly projecting portions 38a, 38b, 39 which are engageable with the step portion 33a of the slit 35 of the edge 33.
a and 39b, which holds the projecting portion in a vertical position between the projecting portion and the stepped portion, and which is elastically pressed to the surface of the slit opposite to the stepped portion 33a.
The elastic force acting in the direction crossing the slits ensures that the slits are releasably clipped and fixed in the slits.

Therefore, the respective constituent parts 38 and 39 are in a state where the packaging is closed, that is, as shown in FIG. Positioned within the slit. In order to open the packaging, a force is applied to the tip of one component 38 of the connecting part in the direction of the arrow A toward the inside of the container, and the step 33a and the vertical protrusions 38a,
38b, 39a, 39b are disengaged, and as a result, one component 38 is connected to one slit 35 from the bottom 31.
Can be removed by passing through.

With the hinge 40 of the other connecting piece connecting the remaining two short sides of the packaging as the center, the cover part 31 can be in the open position as shown in FIG. The ratchet mechanism 4 is composed of two projecting pieces that are engaged with each other in the constituent parts 38 and 39 of the connecting part.
1, 42, which makes it possible to maintain this component in the closed position shown in FIG. The ratchet mechanism portion is formed so as to project in the direction opposite to the hinge from the hinge-side ends of the constituent portions 38 and 39, and the step portion 33 of the slit.
It is pressed against the surface opposite to a and is therefore arranged so as to cross the slit.

This connecting part can be obtained at a low cost by injection-molding a plastic material, and the two parts (the bottom part and the cover part) of the packaging can be fast and surely fixed, and the connecting part 38 of the connecting part can be fixed. , 39 have a symmetrical shape, so when opening the packaging,
It can be detached from either the bottom portion 31 or the edge 33 of the cover portion 32.

The bottom 31 and the cover 3 of the packaging
Obviously, the same plurality of slits 35 can be provided on the opposite sides of the edge 33 based on the shape and size of 2. It is also possible to provide slits 35 of this kind on the four sides of the two-divided portion of the packaging, and to firmly seal the packaging by using connecting parts.

[0015]

Since the packaging according to the present invention is configured as described above, the connecting component has both a hinge function and an engaging / disengaging function, and at least the edges of the cover portion and the bottom portion and the shape of the slit. Since it is the same, productivity can be improved and at the same time the cover can be opened and closed from any side, and since the ratchet mechanism is provided on the connecting part, the sealed state and closed state in the closed state are also good. Many effects can be obtained.

[Brief description of drawings]

1 is a perspective view of an open packaging made from a two-piece product (the bottom of the packaging and a cover) obtained using a mold according to the invention.

2 is a partial cross-sectional view of the packaging shown in FIG.
The packaging is open.

3 is a partial cross-sectional view of the packaging shown in FIG.
The packaging is closed.

[Explanation of symbols]

 31 Bottom part 32 Cover part 33 Edge 33a Step part 34 Groove 35 Slit 36 Packing 38, 39 Connecting parts 38a, 39a Upper protruding part 38b, 39b Lower protruding part 39c Bending protrusion 40 Hinge 41, 42 Ratchet mechanism part

Claims (5)

[Claims] 1. A packaging comprising a bottom portion and a cover portion, wherein the bottom portion and the cover portion have horizontal flange-shaped edges formed in their openings, and are provided around the edges and are packed. Has a groove fitted therein, the connecting part is made of a separate flexible plastic part, and the bottom part and the cover part are hinged at one edge of the opening, and Both of them are locked at the opposite edge, and the bottom part and the cover part are locked by the connecting part so that the packing fits in the groove, and a sealed state is created between the bottom part and the cover part. And packaging characterized by being maintained. 2. The cover according to claim 1, wherein the edges of the cover and the bottom are in the same plane in the closed state, and the shapes and the dimensions of the edges are the same so as to be fitted accurately. Packaging. 3. At least one pair of slits for accommodating the connecting parts are formed at each edge of the bottom portion and the cover portion, and the slit pairs are aligned at the closed position. The packaging according to claim 1 or 2. 4. The connecting component has a protrusion capable of engaging with a step portion of a slit provided on the edge, and can be clipped or released with respect to the step portion. The packaging according to Item 3. 5. The packaging according to claim 4, wherein each connecting piece has a hinge portion.