JP3142537B2 - Paper cushion - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper buffer for protecting electronic products such as notebook personal computers, printers for personal computers, liquid crystal type thin monitors, etc., precision equipment and various other products. More specifically, the present invention relates to a paper cushion which is formed by folding a sheet-like base material made of a paper board such as a cardboard and assembling the same.

[0002]

2. Description of the Related Art Conventionally, a cushion made of urethane foam or styrene foam has been used as a cushion for protecting products (packaged goods) such as a notebook computer and a liquid crystal monitor for a personal computer which are packed in a cardboard packaging box. However, in recent years, disposal after disposal is difficult and there is a concern about adverse effects on the environment.

In recent years, as a substitute for such a buffer, various paper buffers have been proposed in which a sheet-like base material made of a paper board material such as a cardboard is bent and assembled. Since a plurality of sheet-like base materials are assembled into a substantially case shape at a manufacturing site and transported to a packing site in an assembled state, there is a problem that costs for storage and transportation increase. In order to reduce these costs, there is a demand for a paper buffer that can be easily assembled at a packing site.

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional situation, and its object is to form a single sheet-like base material by bending a key portion and easily assemble it at a packing site. It is an object of the present invention to provide a paper buffer having a sufficient cushioning function.

[0005]

In order to achieve the above-mentioned object, a first aspect of the present invention is to provide a product-fitting concave portion by bending a key of a sheet-like base material made of a paper-made sheet material. A buffer body that is assembled into a substantially case shape having buffer spaces formed on the left and right sides of the concave portion, and is fitted with the back side of the buffer body, which is made of a paper board, and maintains the assembled state of the buffer body. And a required number of reinforcing members for reinforcement, wherein the buffer body includes a bottom wall, left and right inner walls rising from left and right side edges of the bottom wall, and upper edges of the left and right inner walls. Left and right upper walls that bend outward from the outer wall, left and right outer walls that bend downward from the outer edge of each upper wall, and a space surrounded by the bottom wall and the left and right inner walls is a product fitting recess, and The space enclosed by the inner wall, upper wall, and either left or right outer wall And the space portion, the reinforcing member is provided with a notch in place corresponding to the back shape of the cushion body,
The basic configuration is that it is formed so as to be inserted from the back side of the buffer body and fitted to the buffer body.

The notch provided in the reinforcing member is formed by a notch groove into which the left and right inner walls and the left and right outer walls are inserted, and a notch in which the back side (outer side) of the product fitting recess is fitted. .

In this case, the main part of the sheet-like base material is bent to assemble the buffer body, and a required number of reinforcing members are inserted and fitted from the back side of the buffer body to assemble the buffer body. While maintaining the state, the reinforcing members reinforce the front and rear surface portions of the buffer body. And the product fitted in the product fitting recess is protected by the buffer function of the left and right buffer spaces. The number of reinforcements is not particularly limited,
From the viewpoint of maintaining and reinforcing the assembled state of the shock absorber main body, it is preferable to arrange a total of two at one end at both ends in the front and rear direction of the shock absorber main body, and at least one at a halfway portion in the front and rear direction of the shock absorber main body. Good to distribute. The position and number of the reinforcing members can be appropriately selected according to the size, weight, strength, shape, and the like of the product (packaged object) to be used.

According to a first aspect of the present invention, in the above-described basic structure, a cut line is provided at the front and rear ends of the bottom wall to separate the bottom wall from the product fitting recess, and the separated bottom wall is provided. The portion was bent inward in a substantially V-shape at the folding line of the central portion, and provided with a substantially M-shaped reinforcing portion formed by front and rear end portions of left and right inner walls and the V-shaped bent portion before and after the product fitting concave portion. That is the gist.

When formed in this way, an M-shaped reinforcing portion is formed on both front and rear sides of the product fitting concave portion, the front and rear end portions of the left and right inner walls and the V-shaped bent portion of the front and rear end portions of the bottom wall.
By the reinforcing portion, the buffer function, durability, strength, and the like of the buffer body can be improved.

According to a second aspect of the present invention, in the configuration of the first aspect, a notch is provided in at least one of the left and right inner walls and an appropriate position on an upper wall connected to the inner wall, and the protrusion is connected to the product fitting recess. The gist of the present invention is that a recess is formed.

When formed in this manner, the product to be used (packaged object) is gripped close to the fitting portion of the product fitting recess into the product fitting concave portion, and even if there is a leg portion or other projecting portion, it is not removed. The protruding portion can be stored in the protrusion storing recess.

In the first or second aspect of the present invention, the shock absorber main body is assembled into a substantially case shape by bending a key portion of one sheet-like base material, which is preferable mainly when the assembly is performed manually by an operator. Used. In contrast
The gist of the present invention is that the buffer body is formed in a substantially case shape by bending a key sheet of a sheet-like base material made of a paper plate and attaching the key element to the key.
In this case, it is possible to preferably cope with a case where the buffer body is automatically assembled using a molding die.

According to a fourth aspect of the present invention, in the configuration of the first to third aspects, the reinforcing member is formed in a plate shape or a frame shape by bending a key portion of one sheet of paper board material. Is the gist. As shown in an example in an embodiment to be described later, the plate-shaped reinforcement is provided with a notch at a required position of a plate made of a paper-made plate material, and is formed so as to be inserted and fitted to the back side of the buffer body. Things. The frame-shaped reinforcing member is assembled by bending a key portion of a paper plate material so as to have a triangular, quadrangular, square, trapezoidal, pentagonal or higher polygonal shape, irregular shape, circular shape or the like in plan view, and A notch is provided at a required location, and it is formed so as to be inserted and fitted to the back side of the buffer body. When a plate-shaped reinforcement is used, assembly is easy, and when a frame-shaped reinforcement is used, there is an advantage that the reinforcement is more reliable.

The buffer body and the reinforcing member of the paper buffer according to the present invention are manufactured using a paper plate material well-known in this field of art, and the paper plate material is usually laminated. Cardboard is used.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, a is a sheet-like base material for forming a buffer body, and b and c are base materials for forming a reinforcing body. The sheet-shaped base material a, the base material b, and the c-shaped base material are formed by cutting a paper board material known in this field, in this example, a laminated cardboard into a required shape, and forming a fold line that forms a valley fold or a mountain fold at a predetermined position. Further, if necessary, cut lines are formed, and the buffer body 1 and the reinforcing bodies 2 and 3 shown in FIGS. 2 to 3 are formed by bending important portions of the base materials a, b and c. .

First, the buffer body 1 will be described. The buffer body 1 is made of a sheet-like base material a. As shown in FIG. 1, the sheet-shaped substrate a has an inner wall 11 bent from one of left and right side edges of the bottom wall 10, an inner wall 12 bent from the other side edge, and an outer edge of the inner wall 11 with the bottom wall 10 as a center. A top wall 13 that bends, a top wall 14 that bends from the outer edge of the inner wall 12, an outer wall 15 that bends from the outer edge of the top wall 13, and an outer wall 16 that bends from the outer edge of the top wall 14.
Are formed via the fold lines 20, respectively.

The front and rear ends 17 and 18 of the bottom wall 10 are separated from the bottom wall 10 by a notch 21 formed by a cut line.
It is formed so that it can be bent into a letter shape. Also, a cut line 23 is provided in the inner wall 11 and the upper wall 13 so as to form a cutout surface 19 continuous with the bottom wall 10 and a cutout portion 24 is formed in a cutout portion of the cutout surface 19. Cutout surface 19
, A cutout portion 25 surrounded by a cut line and a fold line is formed at two front and rear portions.

A fold line 26 and a fold line 27 are provided at appropriate positions in a portion of the upper surface wall 13 adjacent to the notch 24 to form a fold surface 28, and the notch is formed at a fold of the fold surface 28. The notch 29 communicating with the part 24 is formed.

Such a sheet-like base material a is bent in a required direction at each folding line, and the buffer body 1 is assembled. The buffer body 1 includes a bottom wall 10, left and right inner walls 11, 12 rising from left and right side edges of the bottom wall 10, and right and left upper walls 13, 14 bent outward from upper edges of the left and right inner walls 11, 12. Left and right outer walls 1 bent downward from the outer edges of the upper walls 13 and 14
5 and 16, the bottom wall 10 and the left and right inner walls 11,
The space enclosed by 12 is a product fitting recess 30 and the inner wall 11
And a space surrounded by the inner wall 12, the upper surface wall 14, and the outer wall 16, and a space surrounded by the upper wall 13 and the outer wall 15, and left and right buffer spaces 31, 32.

The front and rear ends 17 and 18 of the bottom wall 10 are bent into a substantially V shape as described above, and the front and rear ends of the V-shaped bent portion and the inner walls 11 and 12 define the front and rear ends of the product fitting recess 30. In addition, substantially M-shaped reinforcing portions 33 and 34 are formed.

The aforementioned notches 24 and 29 are formed in the inner wall 11 and the upper surface wall 13, and the notches 24 and 29 form a projection storage recess 35 communicating with the product fitting recess 30.

The bent-out portion 25 is bent inward to serve as a finger insertion port 36 when the user attaches / detaches to / from the product 100.

Reference numeral 37 denotes an engagement groove for inserting the reinforcing members 2 and 3.

Next, the reinforcing members 2 and 3 will be described.
The reinforcing bodies 2 and 3 are composed of base materials b and c. Substrates b and c are shown in FIG.
As shown in the figure, the reinforcing members 2 and 3 are formed of a bilaterally symmetrical paper plate material centered on the fold lines 40 and 41 and bent along the fold lines 40 and 41. From the left and right side edge portions of the base materials b and c toward the folding lines 40 and 41,
Locations corresponding to the respective engagement grooves 37 formed in the buffer body 1;
Further, a notch groove 44 and a notch portion 45 for forming notch portions 42 and 43 to be engaged with portions corresponding to the back surface side (outer surface side) of the product fitting concave portion 30 are provided.

The substrates b and c are bent at the folding lines 40 and 41 to assemble the double plate-shaped reinforcing members 2 and 3. The reinforcing member 2 has a notch 4 engaging with the engaging groove 37 of the buffer body 1.
And a notch 4 that engages with the engagement groove 37 of the buffer body 1 and the back side (outer side) of the product fitting recess 30.
2 and 43, each of which is inserted from the back side of the buffer body 1 and fitted to the buffer body 1 to maintain the assembled state of the buffer body 1 and to improve the buffer function, durability, It contributes to improvement of strength. In this example,
Two reinforcing members 2 are used to be disposed at the front and rear ends of the buffer body 1, and one reinforcing member 3 is used to be disposed at the center of the buffer body 1.

The buffer body 1 and the reinforcing members 2 and 3 described above
In the paper buffer of this embodiment, the buffer body 1 is assembled by bending key portions of the sheet-like base material a, and the reinforcing members 2 and 3 are inserted and fitted from the back side of the buffer body 1 to form a buffer. Body 1
Is maintained and the buffer body 1 is reinforced by the reinforcing bodies 2 and 3. The products fitted into the product fitting recess 30 are protected by the buffering functions of the left and right buffer spaces 31 and 32. In addition, since the M-shaped reinforcing portions 33 and 34 are provided on both front and rear sides of the product fitting concave portion 30, the cushioning function, durability, strength, and the like of the buffer body 1 can be further improved. Further, since the product fitting concave portion has the protrusion accommodating concave portion 35 communicating with the product fitting concave portion 35, the product 100 to be packed is, for example, a liquid crystal monitor for a personal computer as illustrated in FIG. Even if there is a protruding portion 102 such as a leg near the fitting portion 101, the protruding portion 102 can be stored in the protruding portion concave portion 35.

In this embodiment, the buffer body 1 is assembled by bending the sheet-like base material a at a key position, and is mainly assembled by an operator. On the other hand, although not shown, a glue surrogate surface is continuously provided at an appropriate position of the above-mentioned sheet-like base material a, and the sheet-like base material is formed into a substantially case shape by bending a key portion and attaching the key portion. It can also be a buffer body. In this case, it is suitably used for automatic assembly of the buffer body using a molding die.

Further, in this embodiment, a case has been described in which a reinforcing member formed in a plate shape by bending a key portion of a single sheet of paper is used, but the present invention is not limited to this. The buffer body is assembled by folding a place so as to have a triangular, quadrangular, square, trapezoidal, pentagonal or more polygonal shape, irregular shape or circular shape in plan view and a cutout portion provided at a required position. It is also possible to use a frame-shaped reinforcing body formed so as to be able to be inserted and fitted on the back side of the case.

[0029]

Since the present invention is configured as described above, it has the following effects. (Claim 1) It is possible to assemble by a simple operation of bending a key portion of a sheet-like base material and inserting a reinforcing member, and a desired buffer function, durability, strength, etc. can be obtained by the reinforcing member, and the number of reinforcing members can be increased. Adjustment of the buffer function, durability, strength, etc. can be achieved by increasing or decreasing the size. In addition, since it is a flat sheet before assembling, it has the effect of contributing to cost reduction in transportation and storage.

Further, the substantially M-shaped reinforcing portions formed on both front and rear sides of the product fitting concave portion can further improve the cushioning function, durability, strength and the like.

( Claim 2 ) When the packaged object is picked up near the fitting portion of the product fitting recess, even if there is a leg or other projecting portion, the projecting portion is placed in the projecting recess. And a desired buffer function can be exhibited.

( Claim 3 ) It is possible to cope with automatic assembly using a molding apparatus.

( Claim 4 ) When a plate-shaped reinforcing member is used, there is an advantage that assembly is easy, and when a frame-shaped reinforcing member is used, the reinforcing is more reliable.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a deployed state of a paper buffer.

FIG. 2 is a perspective view showing an assembled state of a paper buffer.

FIG. 3 is a perspective view showing a use state of a paper buffer.

[Explanation of symbols]

 a: Sheet base material 1: Buffer body 2,3: Reinforcement 10: Bottom wall 11, 12: Inner wall 13, 14: Top wall 15, 16: Outer wall 30: Product fitting recess 31, 32: Buffer space 33, 34: Reinforcement part 42, 43: Notch part

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 81/113 B65D 5/50 101 B65D 77/26

Claims (4)

(57) [Claims] 1. A sheet-like base material made of a paper-made sheet material is bent into a key portion to be assembled into a substantially case shape having a product fitting concave portion and buffer spaces formed on the left and right sides of the concave portion. A paper buffer comprising a buffer body and a required number of reinforcing bodies made of a paper plate material and fitted on the back side of the buffer body to maintain and reinforce the assembled state of the buffer body, The buffer body includes a bottom wall, left and right inner walls rising from left and right side edges of the bottom wall, left and right upper walls bent outward from upper edges of the left and right inner walls, and left and right bent downward from outer edges of the respective upper walls. And a space surrounded by the bottom wall and the left and right inner walls is a product fitting recess, and a space surrounded by one of the left and right inner walls, the top wall, and one of the left and right outer walls is buffered to the left and right. The reinforcing body corresponds to the shape of the back side of the buffer body. Place to provide a cutout portion, crowded difference from the back side of the cushion body being fittably formed cushion body, product fitting recess further provided a cut line in the front and rear ends of the bottom wall
And the separated bottom wall portion is located at the central portion.
Fold inward along the fold line into a substantially V shape, before and after the product fitting recess
The front and rear end portions of the left and right inner walls and the V-shaped bent portion
A paper cushion having a substantially M-shaped reinforcing portion to be formed . 2. At least one of said left and right inner walls and said inner wall
Notches are provided at appropriate places on the top wall connected to the wall,
2. The paper cushion according to claim 1 , wherein a projection storage recess communicating with the portion is formed . 3. A single piece of said buffer body made of a paper board material.
Bending of important parts of sheet-like base material and attaching of important parts
3. The paper cushion according to claim 1, wherein the paper cushion is formed in a substantially case shape . 4. The reinforcing member according to claim 1, wherein said reinforcing member is formed by folding a key portion of a sheet of paper.
The paper buffer according to any one of claims 1 to 3, which is formed in a plate shape or a frame shape by bending .