JPH07187254A - Packaging - Google Patents

Abstract

PURPOSE: To provide a container which can smoothly fix the contents, and which can be easily fabricated at a low cost and can be easily handled. CONSTITUTION: The packaging comprises a bottom part 1 and a cover part 2, and a groove 4 is formed along the periphery of the opening of each of the parts 1, 2. Each opening is closed with a stretched film 6. The periphery of the film 6 is fixed by a line or a ring. Further, means 8, 10 are provided to retain the cover part 2 on the bottom part 1 when both the parts are closed. No adhesive is used in the packaging to enable an automated handling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to a packaging which is capable of holding one or more products and which is suitable for fragile products, i.e. the cover and the bottom are each covered by a membrane. Intended for box-type packaging, the membrane encloses the product such that when the box is closed the product hangs within the box or is protected from impact.

[0002]

2. Description of the Related Art There are several types of packaging of this type, in particular GB640,283; DE1,461.
963; U.S. Pat. No. 4,087,003. All of these packagings have a heat shrink plastic membrane that clamps the product to be packaged. There are many drawbacks to these packaging,
The main drawback is that the packaging needs to be heated after the product is installed in order to shrink the membrane, and it is not easy to fix the shrinkable membrane to the hard two-parts (bottom and cover) of the packaging. , There is a possibility that high pressure is applied to the product trapped between the membranes.

FR 2,239,878 describes a packaging for maintaining a protective product between two evacuated membranes. But again, it is necessary to use special equipment for product packaging. In addition, even slight membrane damage can cause the packaged product to come off completely.

In US Pat. No. 2,837,208,
To keep the product in place, we describe a packaging consisting of a box over which the product can be held and a band or support of two membranes in close contact can be kept inside.

In this type of packaging, it is necessary to manufacture a support for supporting a product to be packaged, mount the support in a box, and then, when opening the package, destroy the support and take out the product. And

From US Pat. No. 2,681,142 it is also possible to find information on a packaging consisting of two hollow bodies which are hermetically closed by a membrane and which are connected by a locking device. When the product is placed between the membranes and the hollow bodies are superposed and locked, the inner cavity is inflated so that the membrane presses against the product to be packaged. The drawback is again the need to handle and equip an inflating unit for packaging the product.

[0007] From CH630,313, there is disclosed a packaging comprising a box in which the cover is equipped with a membrane at the level of the opening, while the bottom is equipped with a membrane on the intermediate surface between the opening and the front wall. I understand the information. The two membranes are mechanically secured to the cover and bottom using snap-on, lock or stick-on rings to the cover and bottom.

[0008]

These packagings, which are closed by snap-fitting, require precision fabrication and introduce the complexity of attaching a bottom membrane to the intermediate surface. Furthermore, in the closed position, the membranes do not necessarily touch each other around the product to be packaged, which may hinder a smooth fixation of the product.

The present invention is directed to packaging which is made up of two stackable parts (cover and bottom) which can be superposed, and which is particularly suitable for products which are easily damaged, each of the two parts being equipped with a membrane, It avoids the above-mentioned drawbacks, can be easily manufactured at low cost, and is easy to use. That is, this packaging does not require any tools, expansion unit or heating device and is reusable.

[0010]

DETAILED DESCRIPTION This packaging can be distinguished by the features recited in claim 1. The packaging or box shown in Figures 1-3 has a bottom (1) of the same shape and dimensions.
And a cover part (2). In the example shown, the bottom (1) and the cover (2) are generally rectangular in shape and the edge (3) is provided with a groove (4). In this production, a horizontal slit (5) is provided on each short side of the cover part and the edge (3) of the bottom part, and the cover part (2) is provided there.
And the connecting parts used to hold the bottom (1) together. The cover (2) surrounded by the edge (3) and the opening surface of the bottom (1) are closed by an elastic plastic film (6),
This membrane is kept under tension by the plastic wire (7), which fits in the groove (4) of the rim (3).

The bottom part (1) and the cover part (2) are made in particular of injection-molded plastic and can have the same depth or different depths as shown. However, the shape and size of the openings, i.e. the shape and size of the edges, are always the same, so that they close together when the packaging is closed.

Membrane made of plastic film (6)
Are generally transparent and highly elastic and can be secured by mounting a plastic wire or ring (7) in the groove (3). Generally, this fixing is done by means of which the plastic film can be kept in tension with respect to the openings in the bottom (1) and the cover (2) and the plastic wire or ring (7) is placed in the groove (3). ), Then push it into this groove and finally the plastic film (6)
Cut out.

As a result, each of the two divided portions (the cover portion and the bottom portion) of the packaging is closed with the flexible and deformable film.

The product to be packaged is then placed on the membrane (6) of the bottom (1) and then the cover (2) is overlaid on the bottom (1) and tightened securely. In doing so, the membrane (6) flexibly deforms to enclose the product to be packaged and keeps the product suspended in the space within the bottom (1) and cover (2).

The cover part (2) can be pressed against the bottom part (1) to keep the packaging closed by connecting means or any other suitable means. However, in the example shown, the packaging is maintained in the closed position by an inventive and very practical method using a connecting piece which can be clipped on by the slit (5) of the rim (3).

Each connecting part made of plastic has two components (8, 9) which are made of production components and are connected by a thin plate (10) forming a hinge. Each component (8, 9) has such a shape, size and fulcrum that it can be locked by the ratchet mechanism in the slit (5) of the edge (3).

FIG. 3 shows how the connecting parts are used to fix the two-part packaging (1, 2) in the closed state. To open the packaging, it is sufficient to apply a force in the direction of arrow A to the tip of the component part (8) of the connecting part, so that the connecting part can be removed from the cover part (2).

The cover part (2) can be left open around the hinge of the other connecting part connecting the remaining two short sides of the packaging (FIGS. 1 and 2). There is a ratchet mechanism (11, 12) on the component part (8, 9) of the connecting part, which can be maintained in the closed position (left part of FIGS. 3 and 1).
The same applies to the open position of the package.

This connecting part can be obtained at low cost by injection molding of a plastic material, and the two parts of the package can be fast and practically fixed.

The packaging is easily closed when the product to be packaged causes a relatively large displacement with respect to the membrane (6), thus avoiding compression of the air present in each of the two halves of the packaging. be able to.

Since the component parts (8, 9) of the connecting part are symmetrical, either the cover part (2) of the packaging or the edge (3) of the bottom part (1) can be accommodated. Obviously, depending on the shape and dimensions of the cover part (2) and the bottom part (1) of the packaging, it is possible to provide a plurality of slits (5) on the same side of the edge (3). This kind of slit (5) can be provided on the four sides of the packaging halves and the box can be tightly closed using connecting parts.

In the second fabrication configuration shown in FIG. 4, the bottom (1) and cover (2) of the packaging have separators that define the partitions. These packagings can contain multiple products, with each product being packaged on a separate space. The products arranged in this way are
When the packaging is closed, they are separated from each other and packaged almost independently.

In the fabrication configuration shown in FIG. 5, the bottom (1) of the packaging has a continuous intermediate wall (20) which defines the space within the bottom (1). This intermediate wall is higher than the depth of the bottom (1) so that the membrane (6) of the bottom (1) lies outside the edge (3) plane of the bottom (1).

As shown in the figure, in the closed position of the packaging, the product (0) enclosed between the two membranes of the bottom (1) and the cover (2) is aligned with the matching surface of the edge (3). Are fixed on different sides. As a result, the membrane (6) has an intermediate wall (2
Since it is perpendicular to 0), a large pressure is applied to the membrane in the peripheral portion of this intermediate wall (20), and a tight membrane-to-membrane contact is obtained. In this way, a perfect seal is obtained between the two membranes (6) perpendicular to the intermediate wall (20).

As a result, this type of packaging can be used for products containing liquids, in particular for products containing blood samples (0). Thus, if the liquid flows out as a result of a defect in the container with the liquid or the container is broken, the liquid will not leak out of the packaging as long as the packaging remains in the closed position. This packaging provides additional safety in transporting liquid samples.

Many alternatives for the described packaging are possible without departing from the scope of protection claimed. In fact, the shape and dimensions of the bottom and cover parts, in particular the depth, can be varied. The material used is also selected according to the need.

[0027]

The described packaging eliminates all of the already existing packaging drawbacks, and in particular has the following advantages: -Fabrication is simple and low-cost, and automation is possible. -Membranes can only be fixed mechanically, without any bonding adhesives.

-The packaging halves are not snap-in, they simply mate in the closed position. -No tools, expanders, vacuums or heating devices are required to package the product. -The packaging halves and connecting parts can be reused.

[Brief description of drawings]

The accompanying figures are schematic illustrations of packaging according to the invention, showing by way of example several fabrication shapes.

FIG. 1 is a perspective view of a box or packaging according to the present invention.

FIG. 2 is a partial cross-sectional view taken along the line II-II of FIG.

FIG. 3 is similar to the cross-sectional view shown in FIG. 2, but with the box closed.

FIG. 4 is a perspective view with a box or packaging of the second fabrication shape open.

FIG. 5 is a cross-sectional view of the third fabrication shape box or packaging in a closed state.

[Explanation of symbols]

 1 Bottom Part 2 Cover Part 3 Edge 4 Groove 5 Slit 6 Elastic Plastic Membrane 7 Plastic Wire 8, 9 Components 10 Thin Plate 20 Intermediate Wall

Claims (8)

[Claims] 1. A means for holding a product in a space formed by a bottom portion and a cover portion when assembled, and a packaging formed by the bottom portion and the cover portion, the bottom portion and the cover portion along the edge of the opening. There is a groove, the opening is covered with a tensioned membrane, which is fixed by pushing it into the above-mentioned groove with a plastic wire or ring, and holding the bottom and cover in the closed position. It is characterized by being equipped with means that can. 2. A packaging characterized in that the edges of the cover part and the bottom part are contained in a plane, and the shapes and dimensions of these edges are identical so as to fit closely. 3. The packaging according to claim 1 or 2, characterized in that the cover part and / or the bottom part has an inner wall forming one or more partitions. 4. The packaging according to claim 3, characterized in that the bottom has an intermediate wall defining a central partition. 5. The packaging according to claim 4, characterized in that the intermediate wall is higher than the depth of the bottom and beyond the plane in which the edges of the bottom are included. 6. The packaging according to any one of claims 1 to 5, wherein at least two slits for accommodating the connecting parts are provided at each edge of the bottom part and the cover part, and the slits are closed. It is characterized by pairwise matching at two positions. 7. The packaging according to claim 6, characterized in that the connecting part can be locked or unlocked by means of a ratchet mechanism of a slit provided at the edge. 8. The packaging according to claim 7, characterized in that each connecting piece has a hinge.