JP2002362638A - Container cushion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container cushion comprising members which are simple in structure, not necessary to glue, easy to assemble, and easy to dispose of. SOLUTION: An engaging bag 37 made of a flexible film 35 is put over and fixed to a folding plate 34 of an inner frame 31. This is inserted into a container 45, and an article 47 is supported by a hammock 38 formed by a slack of the film in a U-shape of the inner frame. A lid 46 is closed, and the article is pressed by a restraining board 41 with a hole 44 along a part of a shape of the article. Since the article is held in a space positioned by the hammock and the restraining board, a shock transmitted from the container 45 is alleviated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material inserted into a container for mitigating an impact generated during handling of the container and protecting the product.

[0002]

2. Description of the Related Art Paperboard and cardboard are often used as materials for box-like containers that can be carried by people. In particular, a product stored in a paperboard container is relatively small and easily used when detailed display such as an explanation is required. Products stored in cardboard containers are often used for storing a plurality of small containers. Both containers are assumed to be disposable.

[0003] Commodities stored in a container receive an impact through the container when unloading or moving. There are few products with excellent impact resistance, and many containers have a buffer function. In a paperboard container, a structural means for providing a partition plate therein or a cushioning material such as a synthetic resin foam material is inserted. In the case of a cardboard container, a cushioning material such as a synthetic resin foam material or a pulp mold material is used in addition to the buffering ability of the material.

There are many applications relating to containers with a buffer function. In many cases, paperboard containers integrate the main body and the partition plate to enhance the suitability for automatic machines. In many cases, the corrugated container is easily broken in a specific direction, and the partition plate and the main body have different structures.
In some cases, a synthetic resin or a pulp mold instead of the partition plate is used as the cushioning material.

Japanese Patent Application Laid-Open No. H11-268770 discloses an example of an application in which a synthetic resin film is used as a cushioning material. The contents are provided with a lid and a middle frame with a window on each side of the body, and after adhering and fixing a buffer film around each window, the windows are arranged close to each other. It discloses a technology for providing a cushioning function by suspending a product between films and suspending the product.

[0006]

The cushioning function required for the container differs depending on the product, and there is a limit to the common use. In particular, containers for new products are newly designed and prototyped, and if equipment is included, development costs will be high. The structure of the container using the partition plate as the buffer means is complicated. Although containers made of synthetic resin foam exhibit excellent buffering capacity, there are problems in the effort to match the product shape and in disposal after use.

In the cushioning means disclosed in Japanese Patent Application Laid-Open No. H11-268770, since a product is sandwiched between tensioned framed films, a strong force is applied around the frame. Therefore, the structure of the container for preventing the deformation of the frame becomes complicated, and the cost of the film, the adhesion, and the time required for peeling after use have an effect on the cost.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to provide a cushioning material for a container which solves the problems of simple structure, easy assembly, easy post-processing and low cost.

According to the present invention, a cushioning material comprising two sets of a film and a middle frame is arranged vertically, the U-shapes of the middle frames intersect so as to face each other, and one of the middle frames is pressed against the other. A hammock formed of a film is brought into contact with the U-shape of the frame to form a contact surface having a surface pressure, and the product is held between the contact surfaces to avoid direct contact between the container wall and the product. A cushioning material for a container that alleviates the impact transmitted through the container, and a restraint plate is combined with a set of a cushioning material consisting of a film and a middle frame, and toward the hammock formed of the film in a U-shape of the middle frame, This is a container cushioning material that covers a perforated restraining plate, holds the product between the hammock and the restraining plate, and reduces the impact transmitted through the container.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is a cushioning material used for a box-shaped container, and uses a combination of a flexible film and a middle frame. The middle frame covered with the film is inserted into the container, and a hammock is formed in the U-shape of the middle frame by using the slack of the film.
The product is placed on a hammock to reduce the impact transmitted from the container. The following means are used for fixing goods on the hammock.

The first means uses two sets of cushioning members consisting of a film and a middle frame. A tubular film is placed on a U-shaped middle frame, and the upper and lower sides of the middle frame are pressed so that the insides of the middle frames face each other, and one of the middle frames is pressed. A contact surface is formed between the hammocks formed by the slack of the film inside the middle frame. When the product is held on the contact surface, direct contact of the product with the container wall is eliminated, and the impact transmitted to the product is reduced.

The relationship between the cylindrical film and the middle frame is determined so that the contact surface generates a surface pressure necessary for holding the product. The middle frame has a simple structure, has few bent parts, and does not require glue allowance. Also, the cushioning material is light and extremely easy to assemble and handle, and does not cost much.
In this means, the contact portion by the film exerts a cushioning function in all directions, and the product receives a large cushioning action.

The second means combines a set of cushioning material consisting of a film and a middle frame with a restraining plate. The film is placed on a U-shaped middle frame, the product is placed on a hammock formed by the slack of the film inside, and the product is held down and held by a restraining plate with a hole along a part of the shape of the product. The shape of the film may be either a sheet shape or a cylindrical shape. In the case of the sheet shape, the film is made longer and both ends are fixed to the U-shaped tip of the middle frame, and the film is loosened to form a hammock.

[0014] When the restraint plate is put on the commodity on the hammock, a holding portion is formed. That is, the product is fitted into the hole on the restraint plate and pressed in the hammock direction, and the hole determines the position of the product up, down, front. The rear position is a hammock, and the left and right positions are determined by the interaction between the two. Therefore, the cushioning effect on the product depends on the restraint plate and the film.

The material used in both means is selected from a single material or a combination of rubber, synthetic resin, paper and cloth for the middle frame and the restraining plate, and a film of rubber, synthetic resin, paper and cloth, and the two are combined. If the film is too strong, the middle frame and the restraint plate are easily damaged, and the cushioning capacity is insufficient, and if the film is too flexible, it is insufficient. Both of these methods facilitate material processing, post-processing and recycling, and contribute to cost reduction of buffer containers.

[0016]

In the structure in which two sets of cushioning material consisting of a film and a middle frame are used and goods are held between the films, the film mainly reduces the impact. Further, in the configuration of the pair and the restraint plate, the impact is reduced by the interaction between the film and the restraint plate.

[0017]

Embodiment 1 FIG. 1 is a development view of an upper middle frame, FIGS. 2A and 2B are side and front views of a molded upper middle frame, and FIGS. It is a side view and a front view. FIG. 4 is a developed view of the lower middle frame, and FIGS. 5A and 5B are a sectional view (XX line of FIG. 4) and a front view of the formed lower middle frame. FIGS. 6A and 6B are a side view and a front view of a lower middle frame with a cylinder, and FIGS. 7A and 7B are a side view and a front view crossing the upper and lower middle frames with a cylinder. FIG. 8 is a perspective view of a product surrounded by a cushioning material, and FIGS. 9A and 9B are perspective views before and after engagement of both middle frames.

As shown in FIGS. 1 and 2 (A, B), an upper middle frame 1 made of corrugated cardboard is formed in a U-shape by an upper middle plate 2 and an upper sleeve plate 3 bent along left and right fold lines a. As shown in FIG. 3, the upper middle frame is passed through a tube 6 made of a tubular synthetic resin film. If the width of the cylinder is narrower than the upper middle frame and the circumference is longer than the circumference of the virtual rectangle drawn by the upper middle frame, the hammock 8 is formed by slack when the upper middle frame is lifted.

As shown in FIGS. 4 and 5 (A, B), a lower middle frame 11 made of corrugated cardboard is formed in a U-shape by a lower middle plate 12 and a lower sleeve plate 13 bent along the folding line b. The trapezoidal plates 15, 16 connected to the left and right ends of the lower middle plate with the holes 14 and the insertion plate 17 are bent inward along the folding line c. The insertion plate is fitted in the hole, and the lower middle plate is reinforced by triangular projections 18 formed by bending both ends, and the widthwise ends of the projections are inclined to prevent the lower sleeve plate from falling too much inside.

As shown in FIGS. 6A and 6B, the lower middle frame 11 is passed through a tube 21 formed by cutting a tubular synthetic resin film. Since the cylinder is narrower in width than the lower middle frame and longer in circumference than the imaginary rectangle drawn by the lower middle frame, a slack hammock 24 is formed in the lower middle frame. The size of the lower sleeve plate 13 is larger than the size of the imaginary square drawn by the U-shape of the upper middle plate 1.

As shown in FIGS. 7A and 7B, the upper and lower middle frames 1, 1
When they cross 1, the hammocks 8, 24 formed by the cylinders 6, 21 form contact surfaces. Product 25 at the contact surface by the cylinders of both middle frames
, The lower middle frame is larger than the upper middle frame, so the edge 5 of the upper middle plate frame stops at the tip of the projection 18 of the lower middle frame, and the edge 4 of the upper middle frame is sandwiched by the lower sleeve plate 13. The positions of both frames are determined. When the middle frame intersects the slope of the projection, the edge 5 is guided to a required position to prevent the middle frame from being deformed due to the tension of the cylinder, and the upper and lower middle frames are not displaced.

FIGS. 8A and 8B show a perspective view with a cross section of a product 25 suspended in a cushioning material in a container 26. FIG. The contact between the cylinders 6 and 21 and the product is affected by the physical properties (elasticity, width, thickness, length) of the cylinders. For example, in the case of paper with low elasticity,
Unless the product has a simple cubic shape, the necessary cushioning capacity cannot be obtained. In order to hold the product only by the inner frame before inserting it into the container, it is preferable to use an engaging structure in which the locking hole 20 and the locking projection 8 are combined as shown in FIGS. 9A and 9B.

In this embodiment, which is the first means, the cylindrical film is interposed between the product and the container and prevents contact with the container wall, thereby exhibiting excellent cushioning ability. This example is a rectangular hexahedron, but can also be applied to a cylinder or a product having irregularities. However, sharp or heavy objects are not suitable. The film and the middle frame are simple in structure, simple in shape, and require no gluing, making it easy to reduce the cost of production and assembly, and facilitate storage, post-processing, and recycling of components.

[0024]

[Embodiment 2] FIG. 10 is a development view of the middle frame, and FIG. 11 (A, B).
FIG. 4 is a front view and a side view of a formed middle frame. FIG. 12 (A,
B) is a front view and a cross-sectional view of the film [FIG.
Line]. 13A and 13B are front views before and after fixing of the film and the middle frame, FIG. 14 is a developed view of the restraint plate, and FIG. 15 is a front view and a side view of the formed restraint plate. FIG. 16 (A, B)
17A and 17B are a front view and a front view, respectively, before and after the integration of the middle frame with the film and the restraint plate, and FIGS.

As shown in FIGS. 10 and 11, a middle frame 31 made of corrugated cardboard has a middle plate 32 and a sleeve plate 33 bent along left and right fold lines d.
Make U-shape with. As shown in FIG. 12, the synthetic resin sheet film 35 is provided with an engagement bag 37 in which the upper and lower ends 36 are thermally bonded to each other, and the engagement bag is put on the folded plate 34 as shown in FIGS. The film does not come off when folded in the direction of the arrow. Further, the hammock 38 is formed in the middle frame 31 due to the slack of the film.

As shown in FIGS. 14 and 15, a restraining plate 41 made of corrugated cardboard is provided with a hole 44 corresponding to a partial shape of a product in a middle plate 42.
Is opened, and the sleeve plate 43 is bent along the folding line f. As shown in FIGS. 16A and 16B, a hammock 38 is formed by putting the middle frame 31 with a film in a container 45 (indicated by phantom lines), and the sleeve plate is turned upward, and the restraining plate is placed inside the hammock of the middle frame. Insert When the lid 46 of the container is closed, the force is transmitted from the sleeve plate of the restraint plate to the product and the hammock, thereby securely holding the product and forming a gap between the container and the wall.

As shown in FIGS. 17A and 17B, the product (bottle) 4
When 7 is put on the hammock 38 of the film 35, the lower surface of the bottle comes into contact with the film. When the hole 44 is fitted into the product with the restraining plate 41 covered, the position of the product is determined by the restraining plate in the three directions of up, down, front, the film in the rear direction, and the interaction in the left and right directions by the interaction between them. The impact transmitted to the product is mitigated by the interaction between the restraint plate and the film.

In this embodiment, which is the second means, the film 35 is used, but a cylinder similar to that used in the first embodiment may be used regardless of the presence or absence of the folded plate 34. The hole 44 of the restraint plate 41 can be used for reading a label attached to a product, and an improvement in the product display effect can be expected. The film and the middle frame are simple in structure, simple in shape, and require no gluing, making it easy to reduce the cost of production and assembly, and facilitate storage, post-processing, and recycling of components.

[0029]

The cushioning material for a container according to the present invention has the following effects. The means of assembling the cushioning material of the film and the middle frame forms a film contact surface apart from the middle frame and the container wall and positions and holds the product, so that the cushioning effect is large. In the means using a set of the buffer material and the restraint plate, a buffer effect is obtained by the interaction between the film, the middle frame and the restraint plate. Labels and the like can be read from the holes in the restraint plate. The buffering capacity of the contact surface can be adjusted with the film. The number of constituent members is small, the structure is simple, and it is possible to manufacture at low cost. It is not bulky and requires a small storage volume. Processing including recycling after use is easy.

[Brief description of the drawings]

FIG. 1 is a development view of an upper middle frame of a first embodiment.

FIG. 2A is a side view and FIG. 2B is a front view of a molded upper middle frame.

3A is a side view and FIG. 3B is a front view of an upper middle frame with a tube.

FIG. 4 is a development view of a lower middle frame.

FIG. 5A is a cross-sectional view of a side surface taken along line XX of FIG. 4, and FIG. 5B is a front view of the formed lower middle frame.

6A is a side view and FIG. 6B is a front view of a lower middle frame with a tube.

FIG. 7 (A) is a side view in which the upper and lower middle frames with cylinders are crossed,
(B) is a front view.

FIG. 8 is a perspective view of a product surrounded by a cushioning material.

9A is a perspective view of the engagement structure of the cushioning material before engagement, and FIG. 9B is a perspective view after engagement.

FIG. 10 is a development view of a middle frame of the second embodiment.

11A is a front view and FIG. 11B is a side view of the formed middle frame.

FIG. 12A is a plan view of the film, and FIG.
It is a cross section along a line.

FIG. 13 (A) of the middle frame with a film when mounted, (B)
Is a front view at the time of fixing.

FIG. 14 is a development view of the restraint plate.

15A is a front view and FIG. 15B is a side view of the formed restraint plate.

16A is a front view of the middle frame with film and the restraint plate before integration, and FIG. 16B is a front view after integration.

17A is a side sectional view, and FIG. 17B is a plan view, showing a relationship between a product and a cushioning material.

[Explanation of symbols]

 Reference Signs List 1 upper middle frame 2 upper middle plate 3 upper sleeve plate 6,21 tube 8,24,38 hammock 11 lower middle frame 12 lower middle plate 13 lower sleeve plate 14,44 hole 15,16 trapezoidal plate 17 insertion plate 18 protrusion 23 Contact surface 25, 47 Commodity 31 Middle frame 32, 42 Middle plate 33, 43 Sleeve plate 34 Folding plate 35 Film 37 Engagement bag 41 Restraint plate a, b, c, e, f Folding line

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E066 AA37 CA01 FA11 JA01 KA01 KA02 KA08 KA20 NA48 3E096 AA01 BA23 CA02 CB03 DA03 DB04 DC02 FA09 FA10 FA15 FA26 FA30 GA11

Claims (9)

[Claims] 1. A set of cushioning materials consisting of two sets of film and a middle frame are arranged vertically, and the U-shapes of the middle frames (1, 11) intersect so as to face each other, and one of the middle frames is set to the other. Pressing, the hammock (8, 24) formed of the film is contacted in the U-shape of the middle frame,
Container cushion for forming a contact surface (23) with surface pressure, holding the product (26) between the contact surfaces, avoiding direct contact between the container wall and the product, and reducing shock transmitted through the container. Wood. 2. The film is formed into a tube (6, 21) shape, and the periphery of the tube is made longer than the imaginary square provided by the U-shaped middle frame (1, 11). 2. The cushioning material for containers according to claim 1, wherein a hammock (8, 24) is formed in the U-shape of the middle frame. 3. A lower middle frame (11) has a lower sleeve plate (13) above and below a lower middle plate (12) with a hole (14) and a trapezoidal plate (1) on the left and right.
5, 16) and the insertion plate (17) are connected, a sleeve plate is erected, the trapezoidal plate and the subsequent portions are bent, the insertion plate is inserted into the hole, and triangular projections (18) are formed at both ends of the lower middle plate. Claim 1
3. The cushioning material for containers according to item 2. 4. An end of the projection (18) of the lower middle plate (12) is placed inside the lower sleeve plate (13), and is larger than an imaginary square area of the upper middle frame (1) formed from the lower sleeve plate. When the two frames intersect, the edge (4) of the upper middle frame (1) is sandwiched by the lower sleeve plate, and the projection guides the position of the edge (5).
The cushioning material for containers according to any one of the above. 5. The cushioning material for a container according to claim 1, wherein the upper and lower middle plates (1 and 11) are provided with an engagement projection (8) or an engagement hole (20). 6. A combination of a restraining plate and a cushioning material comprising a set of a film and a middle frame, and a hole (44) in a U-shape of the middle frame (31) toward a hammock (38) formed of a film. A cushioning material for a container that covers the restraining plate (41), holds the product (47) between the hammock and the restraining plate, and reduces the impact transmitted from the container. 7. An engaging bag (37) is provided at both ends of a sheet-like film (35), and the engaging bag is fitted to a U-shaped tip of a middle frame (31) to fix the film. The hammock (3
The cushioning material for a container according to claim 6, wherein 8) is formed. 8. The film is cylindrical, and the circumference of the cylinder is longer than the circumference of the imaginary square provided by the U-shaped middle frame (31). 7. The cushioning material for containers according to claim 6, wherein a hammock (38) is formed therein. 9. The container cushioning material according to claim 6, wherein a hole (44) is formed in the restraining plate (41) in accordance with a partial shape of the product.