JP2020147287A - Cardboard box and packaging body - Google Patents

Abstract

To facilitate a work of fitting a cardboard box before connection of a pair of outer flaps to a frame portion of a base member.SOLUTION: A first inner flap 521 includes a grasping hole 52a capable of grasping the first inner flap 521 by inserting a plurality of fingers, and a supporting piece 5211. The grasping hole 52a is formed by cutting and raising the support piece 5211. When a gripping portion 5212 of the first inner flap 521 and the supporting piece 5211 are grasped by the plurality of fingers inserted into the grasping hole 52a, a trunk cylinder portion 51 is held in a square cylindrical shape by the first inner flap 521 being disposed between a third side plate 523 and a fourth side plate 524, and the support piece 5211 restricts an angle at which the first inner flap 521 tilts.SELECTED DRAWING: Figure 3

Description

The present invention relates to a corrugated cardboard box having a flap and a packaging body including the same.

Generally, a corrugated cardboard box has a square tubular barrel portion and a pair of inner flaps and a pair of outer flaps. The corrugated cardboard box is assembled into a three-dimensional box shape from a flat state in which the barrel portion is folded.

Further, the base member and the corrugated cardboard box connected to the base member may be used as a packing box (see, for example, Patent Document 1). The pair of inner flaps and the opposite end of the body cylinder portion on the side where the pair of outer flaps are formed are open without flaps being formed.

Further, the base member has a rectangular bottom plate portion on which an object to be packed is placed, and a square tubular frame portion that is integrally formed with the bottom plate portion and stands up from four edges of the bottom plate portion.

In the packing box, the body cylinder portion of the corrugated cardboard box is connected to the frame portion of the base member in a state where the corrugated cardboard box covers the object to be packed placed on the bottom plate portion. The packed object is distributed as a packing body in a state of being housed in the packing box.

Japanese Patent Application No. 9-364112

By the way, in the assembling step of the packing body, after the corrugated cardboard box is put on the packed object on the base member and the body cylinder portion of the corrugated cardboard box is fitted to the frame portion of the base member. A cushioning member may be placed on the packaged object, and the pair of outer flaps may be connected by an adhesive tape or the like.

Before the pair of outer flaps are connected, it is not easy to fit the body cylinder portion of the cardboard box to the frame portion of the base member while maintaining the corner portions of the body cylinder portion at right angles. In particular, the larger the cardboard box, the more difficult it is to handle the cardboard box while maintaining the corners of the barrel portion at right angles.

Therefore, in order to improve the efficiency of the assembly work of the packing body, it is necessary to secure a skilled person for the work, or to secure two or more workers. However, it is desirable that even an unskilled person can easily perform this work by himself / herself.

An object of the present invention is to provide a corrugated cardboard box before the pair of outer flaps are connected, which can facilitate the work of fitting the corrugated cardboard box to the frame portion of the base member, and a packing body including the corrugated cardboard box.

The corrugated cardboard box according to one aspect of the present invention is made of corrugated cardboard and is connected to a body cylinder portion connected in a square cylinder shape and the first side plate and the second side plate facing each other among the four side plates forming the body cylinder portion. It has a first inner flap and a second inner flap, and a first outer flap and a second outer flap connected to the remaining opposing third and fourth side plates of the four side plates. The first inner flap has a gripping hole capable of gripping the first inner flap by inserting a plurality of fingers into a portion near the boundary with the first side plate, and the first of the four sides of the first inner flap. It has a support piece formed by cutting up an inner portion of a series of cuts extending in three directions except for the direction of the boundary side with one side plate. The gripping hole of the first inner flap is formed by cutting and raising the support piece. When the grip portion and the support piece, which are portions on the first side plate side of the grip hole in the first inner flap, are gripped by a plurality of fingers inserted into the grip hole, the first inner flap By tilting the flap toward the inner surface side of the first side plate and arranging it between the third side plate and the fourth side plate, the body cylinder portion is held in a square tubular shape, and the support piece is supported by the flap. The tip abuts on the inner surface of the first side plate, limiting the angle at which the first inner flap tilts toward the inner surface of the first side plate.

The packaging body according to another aspect of the present invention includes a base member, a cushioning member, and the corrugated cardboard box. The pair of inner flaps and the opposite end of the corrugated cardboard box on the side where the pair of outer flaps are formed are open without flaps being formed. The base member has a rectangular bottom plate portion on which an object to be packed is placed, and a square tubular frame portion that is integrally formed with the bottom plate portion and stands up from four edges of the bottom plate portion. The cushioning member is placed on the packaged object. The cardboard box is covered with the packaged object and the cushioning member. The barrel portion of the corrugated cardboard box is fitted to the frame portion of the base member in a state of being held in a square tubular shape.

According to the present invention, an object of the present invention is to provide a corrugated cardboard box before the pair of outer flaps are connected to facilitate the work of fitting the corrugated cardboard box to the frame portion of the base member, and a packing body including the corrugated cardboard box. It becomes possible to do.

FIG. 1 is an exploded perspective view of a package including a corrugated cardboard box according to an embodiment. FIG. 2 is a perspective view of a package including a corrugated cardboard box according to the embodiment. FIG. 3 is a perspective view of the cardboard box according to the embodiment. FIG. 4 is a plan view of a main part of the corrugated cardboard box according to the embodiment. FIG. 5 is a cross-sectional view of a main part of the corrugated cardboard box according to the embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following embodiments are examples that embody the present invention, and do not limit the technical scope of the present invention.

[Structure of packing body 10]
The corrugated cardboard box 5 according to the embodiment constitutes a part of the packing body 10.

The packing body 10 includes a base member 1, a lower cushioning member 2, an object to be packed 3, an upper cushioning member 4, and a cardboard box 5. The packaged object 3 is an article to be distributed or transported. In the example shown in FIG. 1, the object to be packed 3 is an image forming apparatus.

The base member 1 includes a rectangular bottom plate portion 11 and a frame portion 12 integrally formed with the bottom plate portion 11. The bottom plate portion 11 is a portion on which the object to be packed 3 is placed. In the present embodiment, the lower cushioning member 2 is sandwiched between the bottom plate portion 11 and the object to be packed 3.

The frame portion 12 is a square tubular portion that stands up from the four edges of the bottom plate portion 11. For example, it is conceivable that the base member 1 is made of corrugated cardboard. Further, the bottom plate portion 11 may be made of wood and the frame portion 12 may be made of corrugated cardboard.

The object to be packed 3 is placed on the bottom plate portion 11 with the lower cushioning member 2 sandwiched between the bottom plate portion 11. For example, the lower cushioning member 2 is made of foamed resin or corrugated cardboard that is laminated to form a plurality of layers.

In the packing body 10, the upper cushioning member 4 is placed on the packed object 3. In the example shown in FIG. 1, the upper cushioning member 4 is a member in contact with the upper surface and the side surface of the packaged object 3.

The corrugated cardboard box 5 is made of corrugated cardboard. The corrugated cardboard box 5 includes a barrel portion 51 which is connected in a square tubular shape, a pair of inner flaps 52, and a pair of outer flaps 53.

The pair of inner flaps 52 and the pair of outer flaps 53 are formed so as to extend from the edge of the first opening 5a at one end of the barrel portion 51. The first opening 5a is closed by a pair of outer flaps 53 (see FIG. 2). The pair of outer flaps 53 are connected by a flap connecting member 6 such as an adhesive tape while closing the first opening 5a (see FIG. 2).

On the other hand, no flap is formed on the edge of the second opening 5b at the other end of the barrel portion 51. That is, the ends of the body cylinder portion 51 on the opposite side of the body where the pair of inner flaps 52 and the pair of outer flaps 53 are formed are open without flaps being formed.

As shown in FIG. 1, the pair of inner flaps 52 includes a first inner flap 521 and a second inner flap 522, and the pair of outer flaps 53 includes a first outer flap 531 and a second outer flap 532. The positional relationship between the first inner flap 521 and the second inner flap 522, or the positional relationship between the first outer flap 531 and the second outer flap 532 may be opposite to the positional relationship shown in FIG.

The four side plates forming the body cylinder portion 51 include a first side plate 511, a first side plate 511 and a second side plate 512 facing each other, and a third side plate 513 and a fourth side plate 514 facing each other. In the example shown in FIG. 1, the glue margin portion 515 connected to the fourth side plate 514 is adhered to the inner side surface of the second side plate 512, so that the second side plate 512 and the fourth side plate 514 are connected.

The corrugated cardboard box 5 is assembled into a three-dimensional box shape from a flat state in which the barrel portion 51 is folded. The glue margin portion 515 is previously adhered to the second side plate 512.

The first inner flap 521 is connected to the first side plate 511, the second inner flap 522 is connected to the second side plate 512, the first outer flap 531 is connected to the third side plate 513, and the second outer flap 532 is connected to the fourth side plate 514. It is in a row.

In the packing body 10, the corrugated cardboard box 5 is covered with the packed object 3 and the upper cushioning member 4. In a state where the corrugated cardboard box 5 is covered with the object to be packed 3 and the upper cushioning member 4, the body cylinder portion 51 of the corrugated cardboard box 5 is fitted to the frame portion 12 of the base member 1.

Specifically, the portion of the body cylinder portion 51 near the second opening 5b is fitted to the frame portion 12 of the base member 1. In the present embodiment, the portion of the body cylinder portion 51 near the second opening 5b overlaps the outer surface of the frame portion 12 of the base member 1.

As shown in FIG. 1, a plurality of first connecting holes 12a are formed in the frame portion 12 of the base member 1. Further, the body cylinder portion 51 is formed with a plurality of second connecting holes 51a that overlap with the plurality of first connecting holes 12a in a state where the body cylinder portion 51 is fitted to the frame portion 12.

Then, the box connecting member 7 is fitted into the plurality of overlapping first connecting holes 12a and the plurality of second connecting holes 51a (see FIG. 2). As a result, the body cylinder portion 51 of the cardboard box 5 is connected to the frame portion 12 of the base member 1. For example, the box connecting member 7 is a synthetic resin member having a recess formed as a handle portion.

By the way, in the assembling process of the packing body 10, the corrugated cardboard box 5 is put on the packed object 3 on the base member 1, and the body cylinder portion 51 of the corrugated cardboard box 5 is fitted to the frame portion 12 of the base member 1. The upper cushioning member 4 may be placed on the packaged object 3, and a pair of outer flaps 53 may be connected by a flap connecting member 6 such as an adhesive tape.

After the pair of inner flaps 52 are folded down to a position where a part of the first opening 5a is closed, the pair of outer flaps 53 are folded down to a position where they overlap the pair of inner flaps 52, and then the pair. Needless to say, the outer flap 53 of the above is connected by the flap connecting member 6.

Before the pair of outer flaps 53 are connected, it is not easy to fit the body cylinder portion 51 of the cardboard box 5 to the frame portion 12 of the base member 1 while maintaining the corner portions of the body cylinder portion 51 at right angles. In particular, the larger the cardboard box 5, the more difficult it is to handle the cardboard box 5 while maintaining the corners of the barrel portion 51 at right angles.

Therefore, in order to improve the efficiency of the assembling work of the packing body 10, it is necessary to secure skilled workers for the work, or to secure two or more workers. However, it is desirable that even an unskilled person can easily perform this work by himself / herself.

The corrugated cardboard box 5 has a structure capable of facilitating the work of fitting the corrugated cardboard box 5 before the pair of outer flaps 53 is connected to the frame portion 12 of the base member 1. The structure will be described below.

As shown in FIG. 1, a series of cuts 52a are formed in the portion of the first inner flap 521 near the boundary with the first side plate 511 over three sides excluding the direction on the boundary side with the first side plate 511. Has been done.

The inner portion of the cut 52a in the first inner flap 521 can be cut and raised centering on the portion on the first side plate 511 side. By cutting up the inner portion of the cut 52a in the first inner flap 521, an opening is formed inside the cut 52a.

In the following description, the opening formed by cutting up the inner portion of the cut 52a in the first inner flap 521 is referred to as a gripping hole 52b. Further, the portion inside the cut 52a in the first inner flap 521, that is, the portion cut up along the cut 52a in the first inner flap 521 is referred to as a support piece 5211.

In other words, the first inner flap 521 has a support piece 5211 formed by cutting up an inner portion of a series of cuts 52a. The gripping hole 52b of the first inner flap 521 is formed by cutting and raising the support piece 5211.

The gripping hole 52b is an opening into which a plurality of fingers F1 can be inserted (see FIG. 4). In the example shown in FIG. 4, four fingers F1 are inserted into the gripping holes 52b. The gripping hole 52b is formed in a portion of the first inner flap 521 near the boundary with the first side plate 511.

In FIG. 4, the operator's hand H1 when a plurality of fingers F1 are inserted into the gripping holes 52b is shown by a virtual line (dashed line). The roles of the gripping hole 52b and the support piece 5211 will be described later.

As shown in FIG. 1, a pair of notches 53a are formed in the first outer flap 531. The pair of notches 53a are cut on both sides of the portion of the first outer flap 531 that overlaps the gripping hole 52b of the first inner flap 521 from the edge opposite to the boundary with the third side plate 513 of the first outer flap 531. It is formed.

In other words, the pair of notches 53a are formed by notching from the tip of the first outer flap 531 toward the root portion connected to the third side plate 513.

The portion between the pair of notches 53a in the first outer flap 531 can be cut up. In the following description, the portion of the first outer flap 531 that is cut and raised along the pair of notches 53a is referred to as an engaging piece 5311.

FIG. 5 is a cross-sectional view taken along the PP plane in the main part of the corrugated cardboard box 5 shown in FIG. As shown in FIGS. 3 to 5, the first inner flap 521 is tilted toward the inner side surface 511a of the first side plate 511, so that both side ends 521a of the first inner flap 521 become the inner side surface 513a of the third side plate 513. And in contact with the inner surface 514a of the fourth side plate 514. Such a state of the first inner flap 521 is hereinafter referred to as a fitted state.

The fitting state is a state in which the first inner flap 521 is fitted between the third side plate 513 and the fourth side plate 514. 3 to 5 show a state in which the first inner flap 521 is in the fitted state and the first outer flap 531 is put on the outer side of the first inner flap 521.

As shown in FIGS. 3 to 5, in the state where the first inner flap 521 is in the fitted state and the first outer flap 531 is put on the outer side of the first inner flap 521, the engaging piece 5311 is placed. It can be inserted into the gripping hole 52b in a state of being in close contact with the edge of the gripping hole 52b of the first inner flap 521.

In the following description, the portion of the first inner flap 521 between the grip hole 52b and the boundary portion between the first side plate 511 is referred to as a first grip portion 5212. Further, the portion of the first outer flap 531 that covers a part of the first grip portion 5212 is referred to as a second grip portion 5312. The second grip portion 5312 is a portion between the pair of notches 53a in the first outer flap 531.

Further, as shown in FIG. 4, in a state where the engaging piece 5311 is inserted into the gripping hole 52b, the first gripping portion 5212 and the second gripping portion 5312 are inserted by a plurality of fingers F1 inserted into the gripping hole 52b. It is possible to grasp.

By gripping the first grip portion 5212 and the second grip portion 5312 by a plurality of fingers F1 inserted into the grip holes 52b, the four corner portions of the body cylinder portion 51 are stably maintained at right angles. Therefore, even when the corrugated cardboard box 5 is large, it is easy to handle the corrugated cardboard box 5 while maintaining the four corners of the barrel portion 51 at right angles.

Therefore, before the pair of outer flaps 53 are connected, the work of fitting the body cylinder portion 51 of the corrugated cardboard box 5 to the frame portion 12 of the base member 1 while maintaining the four corner portions of the body cylinder portion 51 at right angles is also possible. It's easy.

In the present embodiment, the first grip portion 5212, the second grip portion 5312, and the support piece 5211 can be gripped by a plurality of fingers F1 inserted into the grip holes 52b.

When the first grip portion 5212, the second grip portion 5312, and the support piece 5211 are gripped by a plurality of fingers F1 inserted into the grip holes 52b, the tip of the support piece 5211 is the inner surface of the first side plate 511. By abutting on 511a, the range in which the first inner flap 521 can tilt toward the inner side surface 511a side of the first side plate 511 is limited (see FIG. 5). In other words, the support piece 5211 limits the angle at which the first inner flap 521 tilts toward the inner side surface 511a of the first side plate 511 by abutting the tip of the support piece 5211 on the inner side surface 511a of the first side plate 511.

Therefore, the angle of the first inner flap 521 with respect to the first side plate 511 is fixed, and the cardboard box 5 is easier to handle.

For example, the first length L1 from the root to the tip of the support piece 5211 is the same as or the second length L2 from the boundary with the first side plate 511 of the first inner flap 521 to the edge of the grip hole 52b. It is longer than the length L2 (see FIG. 5). As a result, the support piece 5211 holds the angle formed by the first inner flap 521 and the first side plate 511 at an acute angle close to a right angle. As a result, the engaging piece 5311 is difficult to come off from the gripping hole 52b.

Hereinafter, an example of the procedure for assembling the packing body 10 when the cardboard box 5 is adopted for the packing body 10 will be shown.

First, the object to be packed 3 is placed on the bottom plate portion 11 of the base member 1. At that time, the lower cushioning member 2 is placed on the bottom plate portion 11, and the packaged object 3 is placed on the bottom plate portion 11 via the lower cushioning member 2.

Next, the first inner flap 521 of the cardboard box 5 is tilted into the barrel portion 51. As a result, the body cylinder portion 51 is formed into a square cylinder shape.

Next, the first outer flap 531 is put on the outside of the first inner flap 521. Further, the engaging piece 5311 of the first outer flap 531 is inserted into the gripping hole 52b of the first inner flap 521.

Next, the cardboard box 5 is held in a state where the first grip portion 5312 of the first inner flap 521 and the second grip portion 5312 of the first outer flap 531 are gripped by a plurality of fingers F1 inserted into the grip holes 52b. , And the body cylinder portion 51 of the corrugated cardboard box 5 is fitted to the frame portion 12 of the base member 1.

In this way, the corrugated cardboard box 5 is handled in a state where the first grip portion 5312 and the second grip portion 5312 are gripped by the hand H1, so that the body cylinder portion 51 is stably held in a square tubular shape.

It is also conceivable that a pair of notches 53a is not formed in the first outer flap 531. In this case, when the first grip portion 5312 and the support piece 5211 are gripped by a plurality of fingers F1 inserted into the grip holes 52b, the first inner flap 521 moves toward the inner side surface 511a side of the first side plate 511. By tilting and arranging between the third side plate 513 and the fourth side plate 514, the body cylinder portion 51 is held in a square tubular shape. At this time, the tip of the support piece 5211 comes into contact with the inner side surface of the first side plate 511, thereby limiting the angle at which the first inner flap 521 tilts toward the inner side surface 511a of the first side plate 511.

Next, the first inner flap 521 and the first outer flap 531 in the corrugated cardboard box 5 covered with the packed object 3 are opened, and the upper cushioning member 4 is placed on the packed object 3.

Next, a pair of inner flaps 52 are superposed on the upper cushioning member 4 on the object to be packed 3, and a pair of outer flaps 53 are further superposed on the pair of inner flaps 52.

Then, the pair of outer flaps 53 are connected by the flap connecting member 6, and the body cylinder portion 51 of the corrugated cardboard box 5 is further connected to the frame portion 12 of the base member 1 by the box connecting member 7.

As shown above, by adopting the corrugated cardboard box 5, it is possible to facilitate the work of fitting the corrugated cardboard box 5 before the pair of outer flaps 53 is connected to the frame portion 12 of the base member 1. ..

1: Base member 2: Lower cushioning member 3: Packaged object 4: Upper cushioning member 5: Cardboard box 5a: First opening 5b: Second opening 6: Flap connecting member 7: Box connecting member 10: Packing body 11: Bottom plate Part 12: Frame part 12a: First connecting hole 51: Body cylinder part 51a: Second connecting hole 52: Inner flap 52a: Cut 52b: Gripping hole 53: Outer flap 53a: Notch 511: First side plate 511a: Inner side surface 512 : 2nd side plate 513: 3rd side plate 513a: Inner side surface 514: 4th side plate 514a: Inner side surface 515: Glue margin portion 521: 1st inner flap 521a: Both side ends 522: 2nd inner flap 531: 1st outer flap 532 : Second outer flap 5211: Support piece 5212: First grip portion 5311: Engagement piece 5312: Second grip portion F1: Finger H1: Hand

Claims (5)

A barrel portion composed of corrugated cardboard and connected in a square cylinder shape, a first inner flap and a second inner flap connected to the first side plate and the second side plate facing each other among the four side plates forming the barrel portion, and the above. A corrugated cardboard box having a first outer flap and a second outer flap connected to the remaining facing third and fourth side plates among the four side plates.
The first inner flap is
A gripping hole in which a plurality of fingers can be inserted to grip the first inner flap in a portion near the boundary with the first side plate.
It has a support piece formed by cutting up an inner portion of a series of cuts extending over three sides of the first inner flap except for the direction of the boundary side with the first side plate.
The gripping hole of the first inner flap is formed by cutting and raising the support piece.
When the first grip portion and the support piece, which are portions on the first side plate side of the grip hole in the first inner flap, are gripped by a plurality of fingers inserted into the grip hole, the first grip portion. 1 The inner flap is tilted toward the inner surface side of the first side plate and is arranged between the third side plate and the fourth side plate, so that the body cylinder portion is held in a square tubular shape and the support piece is formed. A corrugated cardboard box in which the tip thereof abuts on the inner side surface of the first side plate to limit the angle at which the first inner flap tilts toward the inner side surface of the first side plate. A pair of notches are formed on both sides of the portion of the first outer flap that overlaps the gripping hole of the first inner flap so as to cut from the edge opposite to the boundary with the third side plate of the first outer flap. Boundary
In a state where the first inner flap is tilted toward the inner side surface side of the first side plate and the first outer flap is placed on the outer side of the first inner flap, the pair of notches in the first outer flap. The engaging piece cut up along the can be inserted into the gripping hole in a state of being in close contact with the edge of the gripping hole of the first inner flap.
In a state where the engaging piece is inserted into the grip hole, a second grip that covers a part of the first grip portion of the first inner flap and the first grip portion of the first outer flap. The corrugated cardboard box according to claim 1, wherein the portion can be gripped by a plurality of fingers inserted into the gripping holes. The first length from the root to the tip of the support piece is the same as or greater than the second length from the boundary with the first side plate of the first inner flap to the root of the support piece. The long cardboard box according to claim 2. The first inner flap, the second inner flap, the first outer flap, and the end opposite to the side on which the second outer flap is formed in the barrel portion are opened without flaps being formed. The corrugated cardboard box according to any one of claims 1 to 3. A base member having a rectangular bottom plate on which an object to be packed is placed and a square tubular frame that is integrally formed with the bottom plate and stands up from the four edges of the bottom plate.
A cushioning member placed on the packaged object and
The corrugated cardboard box according to claim 4, which is covered with the packaged object and the cushioning member, is provided.
A packing body in which the body cylinder portion of the corrugated cardboard box is fitted to the frame portion of the base member in a state of being held in a square tubular shape.

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