JP2022071791A - Partition body and connection structure of side wall - Google Patents

Abstract

To provide a partition body which can be assembled in a short time.SOLUTION: An insertion piece 22 protruding from a first end edge 21 of a first side wall part 11 can be folded to the inside surface side by a first fold 23 separated from the first end edge by substantially the thickness of the side wall part. A substantially U-shaped U-shape cutting line 26 is formed along the first end edge in such a manner that, when the insertion piece is folded, a protrusion piece 25 protruding to the rear end side of the insertion piece is raised. A folding piece 32 protruding from a second end edge 31 of a second side wall part 12 can be folded to the inside surface side with the second end edge being a second fold 33. A predetermined hole and/or a predetermined cutting line are formed along the second end edge in such a manner that, when the folding piece is folded, a fit-in hole 34 is formed, and a protrusion part 35 protruding to the rear end side of the folding piece is formed in an extended manner. By folding the folding piece, allowing the insertion piece to be fitted in the fit-in hole and folding at the same time, and bringing the protrusion piece into contact with a tip of the protrusion part from the lateral direction, the insertion piece and the folding piece are held in a folded state, and the insertion piece is in a state of coming off prevention.SELECTED DRAWING: Figure 1

Description

The present invention mainly relates to a partition body used for protecting the goods inside the box and a structure for connecting the side walls of the partition body and the like.

As shown in FIG. 4B of Patent Document 1, a square frame-shaped partition body is known in which a part of a side wall is bonded and bonded with an adhesive or the like.

However, there is a problem that the assembling work takes time in the case of bonding using an adhesive.

Japanese Unexamined Patent Publication No. 2006-240713

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a connecting structure of a partition body and a side wall that can be assembled in a short time.

In order to solve the above problems, the partition body according to the present invention is
It is a square frame-shaped partition body composed of first to fourth side wall portions, in which the first side wall portion and the second side wall portion are connected at right angles to each other.
The first side wall portion has a plug piece extending and formed so as to protrude from the edge on the side to be joined (hereinafter, referred to as "first edge").
The insertion piece is parallel to the first end edge, and the position where the thickness of the side wall portion is substantially separated from the first end edge to the insertion piece side is defined as a crease (hereinafter referred to as "first crease"). It can be bent toward the inner surface of the first side wall,
A substantially U-shaped U-shaped cut line is formed on the first side wall portion along the first fold, and when the insertion piece is bent, the insertion piece is formed with the first fold as a base end. On the opposite side, a convex piece that protrudes on the same plane as the insertion piece, does not bend at the first fold, and rotates integrally with the insertion piece around the first fold is formed. And
The second side wall portion has a bent piece extending and formed so as to protrude from the edge on the side to be joined (hereinafter, referred to as "second edge").
The bent piece can be bent toward the inner surface side of the second side wall portion with the second end edge as a crease (hereinafter referred to as "second crease").
A predetermined hole and / or a predetermined cut line is formed in the second side wall portion along the second fold, and when the bent piece is bent, the inside surface side is formed along the second fold. An fitting hole into which the insertion piece can be inserted is formed, and the thickness of the side wall portion is substantially equal to the thickness of the side wall portion on the same plane as the bending piece on the opposite side to the bending piece with the second fold as the base end. A convex portion that protrudes and does not bend at the second fold and that rotates integrally with the bent piece around the second fold is formed.
By bending the bent piece, fitting the insertion piece into the fitting hole and bending the bent piece, and bringing the convex piece into contact with the tip of the convex portion from the lateral direction, the insertion piece and the bent piece can be made. The gist is that the insert piece is held in a bent state and is in a state of being prevented from coming off from the fitting hole.

Further, in order to solve the above problems, the connecting structure of the side wall according to the present invention is
In a corrugated cardboard structure or a plastic corrugated cardboard structure in which the first to fourth side walls are provided in a square frame shape, the first side wall and the second side wall are joined at right angles to each other.
The first side wall has a plug piece extending and formed so as to protrude from the edge on the side to be joined (hereinafter, referred to as "first edge").
The insertion piece is parallel to the first end edge, and the position where the thickness of the side wall is substantially separated from the first end edge to the insertion piece side is defined as a crease (hereinafter referred to as "first crease"). It can be bent toward the inner surface side of the side wall of 1.
A substantially U-shaped U-shaped cut line is formed on the first side wall along the first fold, and when the insertion piece is bent, it is opposite to the insertion piece with the first fold as a base end. On the side, a convex piece that protrudes on the same plane as the insertion piece, does not bend at the first fold, and rotates integrally with the insertion piece around the first fold is formed. Ori,
The second side wall has a bent piece extending and formed so as to protrude from the end edge on the side to be joined (hereinafter, referred to as "second end edge").
The bent piece can be bent toward the inner surface side of the second side wall with the second end edge as a crease (hereinafter referred to as "second crease").
A predetermined hole and / or a predetermined cut line is formed on the second side wall along the second fold, and when the bent piece is bent, the said from the inner surface side along the second fold. An fitting hole into which the insertion piece can be inserted is formed, and the second fold is used as a base end to project on the opposite side of the bent piece on the same plane as the bent piece by approximately the thickness of the side wall. A convex portion that does not bend at the second fold and rotates integrally with the bent piece around the second fold is formed.
By bending the bent piece, fitting the insertion piece into the fitting hole and bending the bent piece, and bringing the convex piece into contact with the tip of the convex portion from the lateral direction, the insertion piece and the bent piece can be made. The gist is that it is held in a bent state and the insertion piece is in a state of being prevented from coming off from the fitting hole.

Since the bonding structure of the partition body and the side wall does not use an adhesive or the like at the time of assembly, it can be assembled in a short time.

It is explanatory drawing which showed the partition body 1 which is 1st Embodiment. It is explanatory drawing which showed the sheet material which constitutes a partition body 1. It is explanatory drawing which showed the coupling structure. It is explanatory drawing which showed the coupling structure. It is explanatory drawing which showed the coupling structure. It is explanatory drawing which showed the coupling structure. It is explanatory drawing which showed the mechanism which holds the bent state. It is explanatory drawing which showed the sheet material which constitutes the modification of 1st Embodiment. It is explanatory drawing which showed the sheet material which constitutes the modification of 1st Embodiment. It is explanatory drawing which showed the partition body 2 which is 2nd Embodiment. It is explanatory drawing which showed the sheet material which constitutes a partition body 2. It is explanatory drawing which showed the sheet material which constitutes the modification of the 2nd Embodiment.

Hereinafter, embodiments embodying the partition body of the present invention will be described with reference to the drawings, but the technical scope of the present invention is, of course, not limited to this. The detailed description of the well-known technique will be omitted. Further, in the present specification, when the partition body is referred to as an upward direction or a downward direction with respect to the partition body, it means the vertical direction when the front view of FIG. 1 is viewed.

(First Embodiment)
First, the configuration of the partition body 1 according to the first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is an explanatory diagram showing a partition body 1 of the present embodiment. FIG. 2A is an explanatory diagram showing a sheet material constituting the partition body 1. FIG. 2B is an explanatory diagram showing a state in which the insertion piece is bent. FIG. 2C is an explanatory diagram showing a state in which the bent piece is bent.

As shown in FIG. 1, the partition body 1 is a square frame-shaped partition body, and is mainly used for protecting the goods inside the box. The partition body 1 is composed of a first side wall portion 11, a second side wall portion 12, a third side wall portion 13, and a fourth side wall portion 14. As shown in FIG. 2, the first to fourth side wall portions 11, 12, 13, and 14 are composed of one substantially rectangular sheet material 20.

The material of the sheet material 20 is plastic corrugated cardboard (generally referred to as "plastic corrugated cardboard", a resin corrugated cardboard structural board, hereinafter simply referred to as "plastic corrugated cardboard"). As a result, the partition body 1 is lightweight and has excellent strength and cushioning properties.
Further, the sheet material 20 is obtained by pressing and punching a plastic corrugated cardboard. In the present embodiment, the material of the sheet material 20 is plastic corrugated cardboard, but corrugated cardboard may be used, or a flexible thin plate may be used.

In the partition body 1, the first side wall portion 11 and the second side wall portion 12 are connected at right angles to each other, and the other side wall portions are connected to each other by bending one sheet material 20.

The first side wall portion 11 has an insertion piece 22 extending and formed so as to protrude from the edge on the side to be joined (hereinafter, referred to as “first edge 21”).

The insertion piece 22 is parallel to the first end edge 21, and the position where the thickness of the side wall portions 11 to 14 is separated from the first end edge 21 on the insertion piece 22 side is referred to as a crease (hereinafter referred to as "first crease 23". ), It can be bent toward the inner surface side of the first side wall portion 11.

The first fold 23 is subjected to so-called half-cut processing in which the liner on the opposite side (outer surface side) in the bending direction (inner surface side) is cut. In the present embodiment, the half-cutting process is used, but the ruled line processing may be used, and any other method may be used as long as it is a processing method that naturally bends at the first crease 23.
Further, in the case of the ruled line processing, the force for returning straight is stronger than that for the half-cut processing, so that the force for returning a part of the ruled line as a cutting line may be weakened.

Further, on the first side wall portion 11, a substantially U-shaped U-shaped cut line 26 is formed along the first crease 23 at a position substantially center in the vertical direction.
As a result, as shown in FIG. 2B, when the insertion piece 22 is bent, a convex piece 25 protruding from the first fold 23 toward the opposite side of the insertion piece 22 is formed.
The convex piece 25 is formed so as to extend on the same plane as the insertion piece 22, and when the insertion piece 22 rotates around the first fold 23, the convex piece 25 rotates integrally with the insertion piece 22 without bending at the first fold. do.
The lateral length of the convex piece 25 is approximately twice the thickness of the side wall portions 11 to 14.

The second side wall portion 12 has a bent piece 32 extending and formed so as to protrude from the end edge on the side to be joined (hereinafter, referred to as “second end edge 31”).

The bent piece 32 can be bent toward the inner surface side of the second side wall portion 12 with the second end edge 31 as a crease (hereinafter referred to as "second crease 33").

Similar to the first fold 23, the second fold 33 is also subjected to so-called half-cut processing in which the liner on the opposite side (outer surface side) in the bending direction (inner surface side) is cut. Similar to the first crease 23, the ruled line processing may be used, or any other method may be used.

Further, in the second side wall portion 12, vertically long rectangular holes 34a are formed along the second fold 33, one at the top and one at the bottom, with the substantially center in the vertical direction as the target. A cut line 34b is formed so as to connect the side edges of the holes 34a and 34a opposite to the bent piece 32.

As a result, as shown in FIG. 2C, when the bent piece 32 is bent, the insertion piece 22 can be fitted into the second side wall portion 12 along the second fold 33 from the inner surface side. The holes 34 are formed.

Further, as shown in FIG. 2C, when the bent piece 32 is bent, a convex portion 35 protruding from the second fold 33 to the opposite side of the bent piece 32 is formed. There is.
The convex portion 35 is formed so as to extend on the same plane as the bent piece 32, and when the bent piece 32 rotates around the second fold 33, the convex portion 35 is integrated with the bent piece 32 without being bent at the second fold. Rotates to.
The lateral length of the convex portion 35 is substantially the same as the thickness of the side wall portions 11 to 14.

However, in the present embodiment, although such a configuration is adopted, the holes and cutting lines formed in the second side wall portion 12 are not limited to this.
When the bent piece 32 is bent, an fitting hole 34 into which the insertion piece 22 can be inserted from the inner surface side is formed in the second side wall portion 12 along the second fold 33, and from the second fold. A convex portion 35 projecting to the opposite side of the bent piece 32 is formed so as to extend on the same plane as the bent piece 32, and when the bent piece 32 rotates around the second fold 33, it is integrated with the bent piece 32. Any hole and / or tangent may be used as long as it rotates in a radial manner.

Further, in the present embodiment, the lateral length of the convex portion 35 is substantially the same as the thickness of the side wall portions 11 to 14, but may be slightly longer than the thickness of the side wall portions 11 to 14.
Further, the fitting hole 34 does not have to be fitted exactly without a gap between the two when the insertion piece 22 is inserted, and may have a slight gap (for example, FIG. 8). , 9).

Next, the method of assembling the partition body 1 will be described with reference to FIGS. 3 to 6.
3 to 6 are explanatory views showing the connecting structure of the side wall portion constituting the partition body 1.

FIG. 3 shows a first side wall portion 11 and a second side wall portion 12 to be joined.
As shown in FIG. 4 from the state of FIG. 3, the bent piece 32 is bent toward the inner surface side by about 90 degrees at the second fold 33.

Then, as shown in FIG. 5, the insertion piece 22 is fitted into the formed fitting hole 34.
Then, as shown in FIG. 6, the insertion piece 22 is bent inward, and the convex piece 25 is brought into contact with the tip of the convex portion 35 from the lateral direction.
As a result, the insertion piece 22 and the bent piece 32 are held in a bent state, and the insertion piece 22 is prevented from coming off from the fitting hole 34.

It will be described with reference to FIG. 7 that the insertion piece 22 and the bent piece 32 are held in a bent state. FIG. 7A is an explanatory diagram showing a mechanism in which the insertion piece is held in a bent state. FIG. 7B is an explanatory diagram showing a mechanism in which the bent piece is held in a bent state. For the sake of clarity, in FIG. 7A, only the insertion piece 22, the convex piece 25, the bent piece 32, and the convex portion 35 are drawn. Further, in FIG. 7B, only the first side wall portion 11 is added to the side wall portion 11.

As shown in FIG. 7A, the insertion piece 22 and the convex piece 25 try to return straight (to rotate counterclockwise on the drawing) with the first fold 23 as a fulcrum. However, since the side surface of the convex piece 25 is in contact with the tip of the convex portion 35 from the lateral direction, the rotation of the insertion piece 22 and the convex piece 25 is prevented.

As shown in FIG. 7B, the bent piece 32 and the convex portion 35 try to return straight (to rotate to the right on the drawing) with the second fold 33 as a fulcrum. However, since the tip of the convex portion 35 is in contact with the side surface of the convex piece 25 and the convex piece 25 is about to rotate counterclockwise on the drawing with the first crease 23 as a fulcrum, the bending piece 32 and the convex portion 35 rotate. Be blocked. Further, the portion of the convex portion 35 that is not in contact with the convex piece 25 is in contact with the insertion piece 22 of the portion that does not overlap with the convex piece 25 between the first end edge 21 and the first crease 23, so that the portion is folded. The rotation of the bent piece 32 and the convex portion 35 is prevented.
That is, the longer the length of the convex portion 35 in the vertical direction, the stronger the force for blocking the rotation of the bent piece 32 and the convex portion 35.
Also in this embodiment, the vertical length of the convex portion 35 is longer than the vertical length of the convex piece 25, for the above reason.

(Variation example of the first embodiment)
Next, the configuration of the modified example 200 (not shown) of the partition body 1 according to the first embodiment will be described with reference to FIG. FIG. 8 is an explanatory diagram showing the sheet material 220 constituting the modified example 200 of the first embodiment. The parts having the same shape and function as the sheet material 20 are designated by the same reference numerals, and the description thereof will be omitted.

The modification 200 is composed of one substantially rectangular sheet material 220.

On the first side wall portion 11, above and below the U-shaped cut line 26, along the first fold 23, a substantially L-shaped (including an inverted L-shaped) L-shaped cut line 226, 226 is formed.
As a result, when the insertion piece 22 is bent, the convex portions 225 and 225 protruding from the first fold 23 toward the opposite side of the insertion piece 22 are formed extending above and below the convex piece 25. ing.
The convex portion 225 is formed so as to extend on the same plane as the insertion piece 22, and when the insertion piece 22 rotates around the first fold 23, the protrusion 225 rotates integrally with the insertion piece 22 without bending at the first fold 23. Move.
The lateral length of the convex portion 225 is substantially the same as the thickness of the side wall portions 11 to 14.

Further, in the second side wall portion 12, vertically long rectangular holes 234a are formed along the second fold 33, one at the top and one at the bottom, with the substantially center in the vertical direction as the target. A cut line 34b is formed so as to connect the side edges of the holes 234a and 234a opposite to the bent piece 32. Further, on the second side wall portion 12, substantially U-shaped U-shaped cut lines 236 and 236 are formed above and below the cut line 34b with the substantially center in the vertical direction as the target, along the second fold 33. ..

As a result, when the bent piece 32 is bent, a fitting hole 34 into which the insertion piece 22 can be fitted is formed in the second side wall portion 12 along the second fold 33 from the inner surface side. There is.

Further, as a result, when the bent piece 32 is bent, convex pieces 235 and 235 projecting from the second fold 33 to the opposite side of the bent piece 32 are formed.
The convex piece 235 is formed so as to extend on the same plane as the bent piece 32, and when the bent piece 32 rotates around the second fold 33, the convex piece 235 is integrated with the bent piece 32 without being bent at the second fold 33. Rotates in a plane.
The lateral length of the convex piece 235 is approximately twice the thickness of the side wall portions 11 to 14.

The bent piece 32 is bent, the insertion piece 22 is fitted into the fitting hole 34 and bent, the convex piece 25 is brought into contact with the tip of the convex portion 35 from the lateral direction, and the convex pieces 235 and 235 are brought into the convex portion 225. By abutting the tip of the 225 from the lateral direction, the insertion piece 22 and the bent piece 32 are held in a bent state, and the insertion piece 22 is prevented from coming off from the fitting hole 34.
By using the bent piece 32 as the same rotation blocking means as the insertion piece 22, the force for holding the insertion piece 22 and the bending piece 32 in the bent state can be increased from the first embodiment.

(Variation example of the first embodiment)
Next, the configuration of the modified example 300 (not shown) of the partition body 1 according to the first embodiment will be described with reference to FIG. 9. FIG. 9 is an explanatory diagram showing the sheet material 320 constituting the modified example 1 of the first embodiment. The parts having the same shape and function as the sheet material 20 are designated by the same reference numerals, and the description thereof will be omitted.

The modification 300 is composed of one substantially rectangular sheet material 320.

On the first side wall portion 11, a substantially convex-shaped (shape in which the horizontal line at the lower part of the convex character is deleted) convex cut line 326 is formed along the first crease 23 at a position substantially at the center in the vertical direction. ing.
As a result, when the insertion piece 22 is bent, the convex portions 325 and 325 protruding from the first crease 23 toward the opposite side of the insertion piece 22 are formed in an extended manner integrally with the convex piece 25. ing. It may be considered that the convex portions 225 and 225 of the modified example 200 move in the direction of the convex piece 25 and become one with the convex piece 25.
The convex portion 325 is formed so as to extend on the same plane as the insertion piece 22, and when the insertion piece 22 rotates around the first fold 23, the protrusion 325 does not bend at the first fold 23 and rotates integrally with the insertion piece 22. Move.
The lateral length of the convex portion 325 is substantially the same as the thickness of the side wall portions 11 to 14.

Further, on the second side wall portion 12, a substantially concave cut line 336 (shape in which the horizontal line at the lower part of the concave character is deleted) is provided along the second crease 33 at a position substantially at the center in the vertical direction. It is formed. A vertically long rectangular hole 34a is formed above and below the concave cut line 336 along the second folding line 33, one for each.

As a result, when the bent piece 32 is bent, a fitting hole 34 into which the insertion piece 22 can be fitted is formed in the second side wall portion 12 along the second fold 33 from the inner surface side. There is.

Further, when the bent piece 32 is bent, the convex pieces 335 and 335 protruding from the second fold 33 to the opposite side of the bent piece 32 are integrally formed with the convex portion 35. It has become. It may be considered that the convex pieces 235 and 235 of the modified example 200 move in the direction of the convex portion 35 and become one with the convex portion 35.
The convex piece 335 is formed so as to extend on the same plane as the bent piece 32, and when the bent piece 32 rotates around the second fold 33, the convex piece 335 is integrated with the bent piece 32 without being bent at the second fold 33. Rotates in a plane.
The lateral length of the convex piece 335 is approximately twice the thickness of the side wall portions 11 to 14.

The bent piece 32 is bent, the insertion piece 22 is fitted into the fitting hole 34 and bent, the convex piece 25 is brought into contact with the tip of the convex portion 35 from the lateral direction, and the convex piece 335 and 335 are brought into the convex portion 325. By abutting the tip of the 325 from the lateral direction, the insertion piece 22 and the bent piece 32 are held in a bent state, and the insertion piece 22 is prevented from coming off from the fitting hole 34.
By using the bent piece 32 as the same rotation blocking means as the insertion piece 22, the force for holding the insertion piece 22 and the bending piece 32 in the bent state can be increased from the first embodiment.
Further, depending on the shape of the fitting hole 34 and the like, the joint portion between the first side wall portion and the second side wall portion may be slightly displaced up and down. , It is fitted between the convex pieces 335 and 335, and is sandwiched from the vertical direction by the convex pieces 335 and 335, so that the movement in the vertical direction is restricted and the connection between the first side wall portion and the second side wall portion is restricted. It is possible to prevent the portion from shifting up and down.

(Second embodiment)
Next, the configuration of the partition body 2 according to the second embodiment will be described with reference to FIGS. 10 and 11. FIG. 10 is an explanatory diagram showing the partition body 2 of the present embodiment. FIG. 11 is an explanatory diagram showing a sheet material constituting the partition body 2. The parts having the same shape and function as the partition body 1 are designated by the same reference numerals, and the description thereof will be omitted.

The partition body 2 is different from the partition body 1 in that the partition body 1 is composed of one sheet material, while the partition body 2 is composed of two sheet materials.
If it is composed of one sheet material, the side wall portion can be connected only at one place, but the mold for press punching becomes elongated and the cost is high. In that respect, the cost can be suppressed by using two sheet materials.

As shown in FIG. 10, the partition body 2 is a square frame-shaped partition body similar to the partition body 1. The partition body 2 is composed of a first side wall portion 11, a second side wall portion 12, a third side wall portion 13, and a fourth side wall portion 14. The first to fourth side wall portions 11, 12, 13, 14 include a sheet material 420 constituting the first side wall portion 11 and the fourth side wall portion 14, and the second side wall portion 12 and the third side wall portion. The sheet material 420 constituting the 13 is composed of two substantially rectangular sheet materials 420 and 420 having the same shape.

In the partition body 2, the first side wall portion 11 of the sheet material 420 and the second side wall portion 12 of another sheet material 420 are joined at right angles to each other, and the first side wall portion 11 and the fourth side wall portion 14, The second side wall portion 12 and the third side wall portion 13 are connected by bending one sheet material 420, and the third side wall portion 13 and the fourth side wall portion 14 are connected at right angles to each other. ..

As shown in FIG. 11, the left side portion (structure around the first edge 21) of the sheet material 420 in the drawing is substantially the same as the left side portion in the drawing of the sheet material 20 shown in FIG. 2A. The sheet material 420 is formed with protrusions 427 and 427 on the first end edge side of the insertion piece 22, and by doing so, if the insertion piece 22 is fitted in the fitting hole 34 by the operator, the lock is released. It has the effect of making it easy to instruct that it functions properly and making it difficult for the lock to come off when folded and unfolded. However, the protrusion 427 is not an essential element of the present invention.

As shown in FIG. 11, the right side portion (structure around the second end edge) of the sheet material 420 in the drawing is substantially the same as the right side portion in the drawing of the sheet material 20 shown in FIG. 2A. In the sheet material 20, the shape of the convex portion 35 is simply convex, whereas in the sheet material 420, it is substantially concave (the shape in which the horizontal line at the lower part of the concave character is deleted). This is to prevent the joint portion between the first side wall portion and the second side wall portion from being displaced in the vertical direction, as in the modified example 300 of the partition body 1. This is also to make it easier for the operator to confirm the final position of the convex piece 25. However, this is not an essential element of the present invention.

(Modified example of the second embodiment)
Next, the configuration of the modified example 500 (not shown) of the partition body 2 according to the second embodiment will be described with reference to FIG. FIG. 12A is an explanatory diagram showing a sheet material 520a constituting the modified example 500 of the second embodiment. FIG. 12B is an explanatory diagram showing a sheet material 520b constituting the modified example 500 of the second embodiment. The parts having the same shape and function as the sheet material 420 are designated by the same reference numerals, and the description thereof will be omitted.

The modification 500 is composed of two substantially rectangular sheet materials 520a and two substantially rectangular sheet materials 520b.

The modified example 500 is different from the partition body 2 in that the partition body 2 is composed of two sheets of the same shape, whereas the modified example 500 is composed of two sheets of the same shape and another two of the same shape. It is composed of one sheet material. Since each part is small, it can be stored in a small space. Other than that, since the configuration is almost the same, only the points different from the partition body 2 will be described.

Modification 500 is a square frame-shaped partition body similar to the partition body 2. The modified example 500 is composed of a first side wall portion 11, a second side wall portion 12, a third side wall portion 13, and a fourth side wall portion 14. The first to fourth side wall portions 11, 12, 13, 14 are configured with a sheet material 520a constituting the first side wall portion 11, a sheet material 520a constituting the third side wall portion 13, and a second side wall portion 12. It is composed of two substantially rectangular sheet materials 520a and 520a having the same shape as the sheet material 520b constituting the fourth side wall portion 14 and two substantially rectangular sheet materials 520b and 520b having the same shape.

In the modified example 500, the first side wall portion 11 (sheet material 520a), the second side wall portion 12 (sheet material 520b), the third side wall portion 13 (sheet material 520a), and the fourth side wall portion clockwise in a plan view. The side wall portions are joined at right angles to each other in the order of the portions 14 (sheet material 520b).

As shown in FIG. 12A, the left and right side portions (structures around both first end edges 21 and 21) of the sheet material 520a on the drawing are the same as the left side portion on the drawing of the sheet material 420 shown in FIG. ..

As shown in FIG. 12B, the left and right side portions (structures around both second end edges 31, 31) of the sheet material 520b in the drawing are the same as the right side portion in the drawing of the sheet material 420 shown in FIG. ..

The above-mentioned contents are merely related to one embodiment of the present invention, and do not mean that the present invention is limited to the above-mentioned contents. For example, the side wall coupling structure of the present invention can be used for a corrugated cardboard structure such as a bottomed box, and can also be used for a side lock of a C-type case.

1 partition body (first embodiment)
2 dividers (second embodiment)
11 1st side wall part 12 2nd side wall part 13 3rd side wall part 14 4th side wall part 20 Sheet material 21 1st end edge 22 Insert piece 23 1st crease 25 Convex piece 26 U-shaped cut line 31 2nd end Edge 32 Folded piece 33 Second crease 34 Fitting hole 34a Hole 34b Cut line 35 Convex part 220 Sheet material 225 Convex part 235 Convex piece
320 Sheet material 325 Convex part 335 Convex piece
420 Sheet material 520 Sheet material

Claims (4)

It is a square frame-shaped partition body composed of first to fourth side wall portions, in which the first side wall portion and the second side wall portion are connected at right angles to each other.
The first side wall portion has a plug piece extending and formed so as to protrude from the edge on the side to be joined (hereinafter, referred to as "first edge").
The insertion piece is parallel to the first end edge, and the position where the thickness of the side wall portion is substantially separated from the first end edge to the insertion piece side is defined as a crease (hereinafter referred to as "first crease"). It can be bent toward the inner surface of the first side wall,
A substantially U-shaped U-shaped cut line is formed on the first side wall portion along the first fold, and when the insertion piece is bent, the insertion piece is formed with the first fold as a base end. On the opposite side, a convex piece that protrudes on the same plane as the insertion piece, does not bend at the first fold, and rotates integrally with the insertion piece around the first fold is formed. And
The second side wall portion has a bent piece extending and formed so as to protrude from the edge on the side to be joined (hereinafter, referred to as "second edge").
The bent piece can be bent toward the inner surface side of the second side wall portion with the second end edge as a crease (hereinafter referred to as "second crease").
A predetermined hole and / or a predetermined cut line is formed in the second side wall portion along the second fold, and when the bent piece is bent, the inside surface side is formed along the second fold. An fitting hole into which the insertion piece can be inserted is formed, and the thickness of the side wall portion is substantially equal to the thickness of the side wall portion on the same plane as the bending piece on the opposite side to the bending piece with the second fold as the base end. A convex portion that protrudes and does not bend at the second fold and that rotates integrally with the bent piece around the second fold is formed.
By bending the bent piece, fitting the insertion piece into the fitting hole and bending the bent piece, and bringing the convex piece into contact with the tip of the convex portion from the lateral direction, the insertion piece and the bent piece can be formed. A partition body that is held in a bent state and in which the insertion piece is prevented from coming off from the fitting hole.
The side wall portion facing the first side wall portion is referred to as the third side wall portion, the side wall portion facing the second side wall portion is referred to as the fourth side wall portion, and the third side wall portion and the fourth side wall portion are used. The partition body according to claim 1, wherein the side wall portions of the above are connected at right angles to each other.
The configuration of the third side wall portion in the joint portion between the third side wall portion and the fourth side wall portion is the first side wall portion in the joint portion between the first side wall portion and the second side wall portion. It has the same structure as the side wall,
The configuration of the fourth side wall portion in the joint portion between the third side wall portion and the fourth side wall portion is the second side wall portion in the joint portion between the first side wall portion and the second side wall portion. The partition body according to claim 1, which has the same structure as the side wall portion.
The partition according to claim 1 or 2, wherein the side wall portion is corrugated cardboard or plastic corrugated cardboard.
In a corrugated cardboard structure or a plastic corrugated cardboard structure in which the first to fourth side walls are provided in a square frame shape, the first side wall and the second side wall are joined at right angles to each other.
The first side wall has a plug piece extending and formed so as to protrude from the edge on the side to be joined (hereinafter, referred to as "first edge").
The insertion piece is parallel to the first end edge, and the position where the thickness of the side wall is substantially separated from the first end edge to the insertion piece side is defined as a crease (hereinafter referred to as "first crease"). It can be bent toward the inner surface side of the side wall of 1.
A substantially U-shaped U-shaped cut line is formed on the first side wall along the first fold, and when the insertion piece is bent, it is opposite to the insertion piece with the first fold as a base end. On the side, a convex piece that protrudes on the same plane as the insertion piece, does not bend at the first fold, and rotates integrally with the insertion piece around the first fold is formed. Ori,
The second side wall has a bent piece extending and formed so as to protrude from the edge on the side to be joined (hereinafter, referred to as "second edge").
The bent piece can be bent toward the inner surface side of the second side wall with the second end edge as a crease (hereinafter referred to as "second crease").
A predetermined hole and / or a predetermined cut line is formed on the second side wall along the second fold, and when the bent piece is bent, the said from the inner surface side along the second fold. An fitting hole into which the insertion piece can be inserted is formed, and the second fold is used as a base end to project on the opposite side of the bent piece on the same plane as the bent piece by approximately the thickness of the side wall. A convex portion that does not bend at the second fold and rotates integrally with the bent piece around the second fold is formed.
By bending the bent piece, fitting the insertion piece into the fitting hole and bending the bent piece, and bringing the convex piece into contact with the tip of the convex portion from the lateral direction, the insertion piece and the bent piece can be formed. A side wall joint structure in which the insertion piece is held in a bent state and the insertion piece is prevented from coming off from the fitting hole.

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