JP2000085747A - Plastics case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transparent plastics case for tightly closing a broad taking in and out opening of goods for a display case of store goods by preventing the case from bulging in the taking in and out opening of goods without causing inconveniences of taking in and out goods and making the design of the plastics case per se worse. SOLUTION: When a plastics case 100 is formed with an angularly cylindrical trunk part 4 fabricated by folding a predetermined shape plastics sheet and a lid part 6 covering both the end openings of the trunk part 4, a folding part 8 is formed at the end of at least one lid part 6, and a connection slit 10 is formed on boundary line of the lid part 6 and folding part 8, and further a connection insertion part 18 to be inserted in the connection slit 10 is made at the opening end of the trunk part 4, thereby constituting a plastics case 100.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a plastic case. More specifically, the present invention relates to a plastic case such as a case for a storefront merchandise display that securely closes a product entrance.

[0002]

2. Description of the Related Art Conventionally, in a plastic case for packaging a product displayed at a store, a product outlet is usually formed widely in order to facilitate putting in and taking out a product stored in the case. Also, to save packaging costs,
A thin plastic sheet is used as a case material. As shown in FIG. 8, a conventional plastic case has a folded product portion 88 formed at an end of a lid portion 86 and inserted into the opening portion of the body portion 84 so as to be inscribed with the body portion. Is being closed. However, the conventional thin plastic case 50 as described above.
In the case of 0, the case itself has insufficient waist, that is, the rigidity is insufficient. In particular, when the weight of the product is large, or when the shape of the product is large, as shown in FIG. 9, the bulge of the trunk at the entrance of the product, particularly at the trunk 84 in which the folded portion 88 is inserted inscribed. A so-called taiko occurs. for that reason,
The gap 9 between the folded portion 88 and the body portion 84 of the product entrance.
2 may open greatly, and foreign matter such as dust and insects may be mixed.

[0003] In order to prevent the case from being drummed, a method has been adopted in which the entrance of the product is closed with an adhesive tape. However, in the method using the tape, the tape is attached and detached every time a product is put in or taken out, and the operation is very complicated. Moreover, the tape used is different in material and design from the plastic sheet of the case material, and there is a problem that the design of the plastic case itself is impaired.

[0004]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-mentioned problems, to make it easy to put in and take out stored items such as commodities, and to improve the design of the plastic case itself without impairing the design of the plastic case itself. It is an object of the present invention to provide a plastic case that prevents the case from being drummed at the access port and that can securely close the access port of the case even in the case of a wide access port.

[0005]

The present invention to achieve the above object is as follows.

[1] A plastic case having a rectangular tubular body assembled by bending a plastic sheet of a predetermined shape and a lid covering both ends of the body, wherein at least one of the lids is provided. An engagement insertion portion for forming a folded portion at an end of the lid portion, forming a locking slit on a boundary line between the lid portion and the folded portion, and inserting the locking slit into an opening end of the body portion; A plastic case wherein the engaging insertion portion is inserted into the locking slit.

[2] A plastic case having a rectangular cylindrical body assembled by bending a plastic sheet of a predetermined shape and a lid covering both ends of the body, wherein at least one of the lids is provided. Forming a folded portion at an end of the lid portion, forming a locking slit on a boundary line between the lid portion and the folded portion, and an engaging insertion portion having a locking hole at an opening end of the body portion. A plastic case formed by inserting the engaging insertion portion into the locking slit.

[3] A plastic case having a rectangular cylindrical body assembled by bending a plastic sheet of a predetermined shape and a lid covering both ends of the body, wherein at least one of the two lids is provided. Are formed by a double inner lid and a locking outer lid provided outside the double inner lid, and the double inner lid is formed by a pair of opposed inner flaps extending from one opening of the body. Wherein the locking outer lid is a pair of opposing outer flaps extending from the one opening, forming a locking slit on one outer flap and forming the locking slit on the other outer flap. A plastic case, comprising: an engagement insertion portion to be inserted; and a locking outer lid formed by locking the engagement insertion portion to the locking slit.

The present invention is directed to a plastic case having a rectangular cylindrical body assembled by bending a plastic sheet of a predetermined shape and a lid covering both ends of the body, wherein the opening is located at a position opposite to the opening. By forming a locking slit on one side and forming an engaging insertion part to be inserted into the locking slit on the other side, it is easy to take in and out of products etc., and without impairing the design of the plastic case itself, It is a plastic case that prevents the case from being drummed at the entrance of goods and the like, and ensures that the entrance is closed even in the case of a product entrance with a wide mouth, such as a storefront display case.

Hereinafter, the present invention will be described in detail with reference to the drawings.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The material of the plastic case of the present invention is not particularly limited as long as it is a plastic material having a strength capable of taking in and out of and holding goods stored therein. Transparent plastic materials are particularly preferred because they allow the stored items to be seen.

FIG. 1 is a perspective view showing an example of the plastic case of the present invention. This case 100 bends a sheet 200 formed in a predetermined shape shown in FIG.
As shown in the figure, the mating surface 2 is formed by bonding. In addition, 4 is a square tube-shaped trunk | drum, and 6 is a cover part. At the upper end of the body 4 of the plastic case, a cover 6 is provided.
And a folded portion 8 is formed at the tip of the lid 6. Further, a locking slit 10 is formed on the boundary between the lid 6 and the folded portion 8.
Side notches 12 are formed at both ends of the boundary between the lid portion 6 and the folded portion 8.

Reference numeral 14 denotes a pair of edges formed on the upper end of the body 4 so as to face each other. One side 16 of the edge 14 is formed narrower toward the tip. This allows
When the lid 6 is closed, the side end 16 of the edge 14 and the side notch 12 are easily engaged with each other, and the lid 6 is not opened carelessly after the lid is closed. .

On the other hand, an engagement insertion portion 18 to be inserted into the locking slit 10 is formed on the upper end of the body opposite to the upper end of the body on which the lid 6 is formed.

The engagement insertion portion 18 has a width substantially equal to the length of the locking slit 10, a width of the root portion 20 and a width of the tip portion 22 are respectively slightly shorter than the length of the locking slit 10, and The corners of the portion 22 are formed in a shape having rounded corners.

The shape of the locking slit 10 may be a linear shape, a curved shape, a linear shape obtained by combining these shapes, or a notch slit having a predetermined width. In the case of a notch slit, the width of the slit 10 is 2.5 mm for ease of operation.
It is preferable to make the above.

The other lid (bottom) has the same lid structure as the lid 6.

FIG. 3 shows a completed assembly of the plastic case.

Next, the plastic sheet 200 will be supplementarily described with reference to FIG. The sheet 200 is cut so as to form a hollow rectangular parallelepiped case. In manufacturing the case 100, the sheet is appropriately bent along a folding ruled line 32 formed in a groove shape on the sheet surface in advance, and is bonded to the mating surface 2 at a glue margin portion.

In the plastic case of the present embodiment having the above structure, a locking slit 10 is formed in the lid portion 6, while an engagement insertion portion 18 is formed in the opening end of the body portion 4 to be inserted into the slit 10. Since the portion 18 is locked, the mechanical strength of the case is increased. That is, since the rigidity of the case itself is high,
When the lid is closed, the gap between the folded portion 8 and the body 4 does not widen even when the weight or the shape of the stored item is large. For this reason, it is possible to prevent the case from being drummed at the entrance of the stored goods. Therefore, in order to prevent the case from being drummed, it is not necessary to employ a method such as closing the access port of the stored items with an adhesive tape.

As described above, the stiffness of the plastic case itself is increased, so that the cover 6 can be widened. That is, it is possible to form a case having a wide opening for taking in and out of stored items. In order to save packaging costs, a thin plastic sheet of the case material can be used.

Therefore, the plastic case of the present invention
An inexpensive that can prevent the case from being taikod at the entrance and exit of the storage and securely close the entrance and exit of the storage, without causing inconvenience in taking in and out of the storage, and without impairing the design of the plastic case itself. It is a plastic case.

FIG. 4 is a perspective view showing another example of the plastic case of the present invention. In this example, the folded portion 8
A tongue portion 24 is formed at the tip of. Furthermore, the trunk 4
A tongue engaging slit formed by forming an engaging insertion portion 26 at the opening end thereof, inserting the engaging insertion portion 26 into the engagement slit 10 and forming the insertion tongue 24 in the body 4. 28. Reference numeral 29 denotes a hook hole formed in the engagement insertion portion 26, and the plastic case 150 can be hooked on a nail or the like using the hook hole 29. The other configuration is the same as the configuration of the plastic case 100 shown in FIG. 1 described above, and thus the same portions are denoted by the same reference numerals and description thereof will be omitted. FIG. 5 shows a completed assembly of the plastic case shown in FIG.

FIG. 6 is a partial sectional side view showing still another example of the plastic case of the present invention.

The case 300 is formed by folding a sheet 400 formed in a predetermined shape shown in FIG. 7 at a folding ruled line 72 and bonding the sheet 400 at a mating surface 76 by using a glue margin portion 74. Get the case.

In FIG. 6, reference numeral 42 denotes a lid. The lid part 42 has a double inner lid 44 composed of inner flaps 48 and 50.
And a locking outer lid 46 composed of outer flaps 52 and 54.

The double inner lid 44 is composed of inner flaps 48 and 50 which extend toward the upper end opening of the body 56 so as to face each other.
Each inner flap 48, 50 has the same shape as the opening of the body 56. A locking outer lid 46 composed of outer flaps 52 and 54 is formed outside the inner flaps 48 and 50 (upper part in the drawing).

One outer flap 52 has the same shape as the upper end opening of the body 56 as shown in FIG.
Extends from the upper end of the A rectangular locking slit 58 is formed substantially at the center of the outer flap 52.

As shown in FIG. 7, the other outer flap 54 comprises a trapezoidal flap base 60 extending from the upper end of the body 56 and a square claw 62 formed at the tip of the flap base 60. These are formed integrally. In the vicinity of the boundary between the flap base portion 60 and the claw portion 62, an engagement insertion portion 64 is formed in which the tip of the arc is cut in an arc shape toward the flap base portion.

As shown in FIG. 6, the outer flaps 52 and 54 are securely locked to each other by inserting the engagement insertion portion 64 into the locking slit 58, thereby forming a locking outer lid. Is what you do.

The other lid (bottom lid) of the plastic case of this embodiment has the same configuration.

Since the plastic case of this embodiment has a double inner lid, the case has a strong stiffness, and furthermore, has a locking outer lid securely locked to each other, so that the case has a stronger stiffness. Become.

The other lid (bottom lid) of the plastic case of this embodiment also has an inner flap doubled.
Since its shape is also a lid having the same shape as the opening of the body portion 56, a stable mounting surface is formed without any unevenness as a mounting surface for storing articles such as commodities. Therefore, the plastic case of the present example is extremely suitable also in terms of the stability of the placement of articles such as products.

[0034]

Since the plastic case of the present invention is constructed as described above, the case itself is strong. In other words, since the rigidity of the case material itself is high, when the lid is closed, even when the weight of the stored items such as products is large or the shape is large,
The gap between the lid and the trunk does not widen.

Further, since the plastic case itself becomes stiff, the lid can be formed wider. For this reason, it is easy to put in and take out stored items such as products. Since a thin plastic sheet can be used as the case material, packaging costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a plastic case of the present invention.

FIG. 2 is a development view of the plastic case of FIG.

FIG. 3 is an assembled view of the plastic case of FIG. 1;

FIG. 4 is a perspective view showing another example of the plastic case of the present invention.

FIG. 5 is an assembled view of the plastic case of FIG. 4;

FIG. 6 is a partial sectional side view showing still another example of the plastic case of the present invention.

FIG. 7 is a development view of the plastic case of FIG. 6;

FIG. 8 is a perspective view showing an example of a conventional plastic case.

FIG. 9 is a plan view showing an example of drumming a conventional plastic case.

[Explanation of symbols]

 2 Fitting surface 4 Body 6 Lid 8 Folded part 10 Locking slit 12 Side notch 14 Edge 16 Side end 18 Engagement insertion part 20 Root part 22 Tip part 24 Insertion tongue part 26 Engagement insertion part 28 Tongue part engagement Slit 29 Hook stop hole 100 Plastic case 150 Plastic case 32 Folding ruled line 34 Glue margin 200 Plastic sheet 42 Lid 44 Double inner lid 46 Locking outer lid 48 Inner flap 50 Inner flap 52 Outer flap 54 Outer flap 56 Body 58 Engagement slit 60 Flap base 62 Flap claw 64 Engagement insertion part 300 Plastic case 72 Folding ruled line 74 Glue part 76 Fitting surface 400 Plastic sheet 82 Fitting surface 84 Body 86 Cover part 88 Folding part 90 Edge 92 Gap 500 Plastic Case

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Akira Nagai 3086 Noto, Tama-ku, Kawasaki-shi, Kanagawa F-term (reference) 3E060 AB03 AB05 BA05 BA06 BA08 BB03 BC04 CA02 CA13 CA25

Claims (3)

[Claims] 1. A plastic case having a rectangular tubular body assembled by bending a plastic sheet of a predetermined shape and a lid covering both ends of the body, wherein at least one of the lids is provided. A lid is formed at an end of the lid, and a locking slit is formed on a boundary line between the lid and the folded part, and an engagement insertion part inserted into the locking slit is provided at an opening end of the body. A plastic case formed by inserting the engaging insertion portion into the locking slit. 2. A plastic case having a square tubular body assembled by bending and assembling a plastic sheet of a predetermined shape, and a lid covering both ends of the body, wherein at least one of the lids is provided. A folded portion is formed at an end of the lid portion, a locking slit is formed on a boundary line between the lid portion and the folded portion, and an engagement insertion portion having a locking hole at an opening end of the body portion is formed. A plastic case wherein the engagement insertion portion is inserted into the locking slit. 3. A plastic case having a square tubular body assembled by bending a plastic sheet of a predetermined shape and a lid covering both ends of the body, wherein at least one of the two lids is provided. It is formed by a double inner lid and a locking outer lid provided outside the double inner lid, and the double inner lid comprises a pair of opposed inner flaps extending from one opening of the body. The locking outer lid is a pair of opposing outer flaps extending from the one opening, forming a locking slit in one outer flap and inserting the locking slit into the other outer flap. And a locking outer lid formed by forming an engagement insertion portion and engaging the engagement insertion portion with the locking slit.