JP2010111421A - Paper-made accommodation box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily transport a product by firmly connecting a first side plate and a second side plate to prevent the collapse of stacked paper-made accommodation boxes caused by a fall of the first side plate by vibration or the like during transportation. <P>SOLUTION: Each corner plate is inwardly perpendicularly turned up with each first side plate standing on a bottom plate. In a state that a standing plate is raised on the bottom plate, and a top plate is inwardly flatly turned up to make a first engagement piece engaged with a first engagement opening and fix the corner plate. A sagging plate is then turned down to make a second engagement piece engaged with a third engagement opening and fix the second engagement piece to the bottom plate. By this, a box is formed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a paper storage box capable of effectively preventing collapse of a load caused by a side plate falling due to a collision of stored products when transported in multiple stages.

  A paper stacking box shown in Patent Document 1 is known as a paper storage box used when transported in multiple stages. The paper box includes a paper bottom plate having an engagement hole formed on one side edge, a pair of first side plates that can stand up on the other side edge of the bottom plate, and upper portions at both ends of the first side plate. The corner plate is integrally formed so as to be bendable by a fold inclined slightly inward from the vertical line, a pair of upright plates that can stand up on one side edge of the bottom plate, and the upper portion of the upright plate is folded at a required plane width. A second side plate comprising a top plate integrally formed to bend, a second side plate formed integrally with the top plate so as to be bent, and having a locking portion locked to the engagement hole at the lower portion, and the engagement hole A part of the matching top face plate is cut out to have a structure including an engaging portion having a width substantially matching the top face plate continuous with the upright plate.

Then, the paper box has the top plate that stands up along the corner plate with the upright plate of the second side plate in a state where the corner plate is tilted slightly inward with the first side plate upright with respect to the bottom plate. The hanging plate is folded back in a state of flattening, and the engaging portion is engaged with the engaging hole, thereby assembling the engaging portion upright in a slightly inclined state.

However, the paper box described above is connected to the second side plate in a state where the corner plates provided at both ends in the longitudinal direction of the first side plate are sandwiched between the upright plate and the hanging plate constituting the second side plate. Due to the structure in which the first side plate is kept in an upright state, the product housed due to vibration or the like when the vehicle stops braking during transportation is moved and pressed against the inner surface of the first side plate. It has been difficult to maintain the box shape because the corner plate is released and the first side plate falls to the outside, or the corner plate breaks at the boundary with the first side plate and the first side plate falls. As a result, a large number of stacked paper boxes are easily collapsed and are not suitable for safely transporting products.
Japanese Patent Laid-Open No. 11-349992

The problem to be solved is that the paper storage boxes stacked due to the first side plate falling down due to vibration during transportation or the like collapse and the product cannot be transported safely.

The present invention includes a bottom plate made of paper, a pair of first side plates integrally formed so as to be able to stand up along the respective long side edges of the bottom plate, and can be bent at the longitudinal ends of the first side plates. A corner plate extending in the direction and integrally formed with a first engagement piece on the top, a stand plate integrally formed so as to be able to stand up along each short side edge of the bottom plate, and an upper portion of the stand plate And a second side plate comprising a top plate extending in a plane with a width corresponding to one sheet of paper, and a hanging plate formed by bending along the end of the top plate and the length of the upright plate A regulation projection piece that is integrally formed at the center of the direction and protrudes upward with a predetermined width; and a second projection that is integrally formed with the lower end of the hanging plate and that is longer in the longitudinal direction than the regulation projection piece and projects downward with a predetermined width. The engaging piece and the first engaging piece of the corner plate formed on both sides in the longitudinal direction of the top plate and sandwiched between the upright plate and the hanging plate are engaged. A first engagement opening that is formed along each short side edge of the bottom plate, a second engagement opening that can be engaged with the restriction protrusion, and an inner side of the second engagement opening, A third engagement opening with which the second engagement piece is engageable, and each corner plate is folded inward at a right angle in a state where each first side plate is raised with respect to the bottom plate. The upright plate is raised with respect to the top plate, the top plate is folded back in a flat shape, the first engagement piece is engaged with the first engagement opening to fix the corner plate, and then the drooping plate is folded downward. The second engagement piece is engaged with the third engagement opening and fixed to the bottom plate to form a box shape.

  The present invention firmly connects the first side plate and the second side plate, prevents the first side plate from collapsing due to vibration during transportation, etc., and prevents the collapsible paper storage boxes from collapsing. It is possible to transport.

In the present invention, each corner plate is folded inward at a right angle in a state where each first side plate is erected with respect to the bottom plate, and in this state, the erection plate is erected with respect to the bottom plate and the top plate is planarly formed inward. The corner plate is fixed by engaging the first engagement piece with the first engagement opening, and then the drooping plate is folded downward to engage the second engagement piece with the third engagement opening. Then, the best form is that it is fixed to the bottom plate and formed into a box shape.

The present invention will be described below with reference to the drawings showing embodiments.
As shown in FIGS. 1 to 4, the paper storage box 1 includes a paper material such as corrugated paper, thick kraft paper, and laminated paper (including a paper material that is waterproofed with at least a synthetic resin layer laminated on the surface). The first side plate 5 having a width corresponding to the box depth is integrally provided on the long side edge of the bottom plate 3 in the paper storage box 1 so as to be able to stand up by a fold 7. Corner plates 9 having a width that matches the height of the first side plate 5 and having a length that is about ½ of the lateral width of the second side plate 15 to be described later can be bent at the folds 11 at both ends of the first side plate 5. Is provided. The fold line 11 is slightly inclined inward with respect to the height direction of the first side plate 5, and when each corner plate 9 is bent, a second side plate 15 described later is slightly inclined inward, and the regulation protrusion 29 is formed so as to be engageable with the second engagement opening 31 in the paper storage box 1 located on the upper side where the stacks 29 are stacked. A first engagement piece 13 is integrally provided at the upper end of each corner plate 9.

A second side plate 15 is integrally provided on the short side edge of the bottom plate 3 so as to be able to stand up by a crease 17. The second side plate 15 has a height corresponding to the first side plate 5 and has a predetermined width along the upright plate 19 that can be bent along the fold line 17 and the fold line 21 provided at the upper end of the upright plate 19. And a foldable plate 27 that can be bent along the fold 25 provided at the inner end of the top surface plate 23 and has a height corresponding to the upright plate 19. The top surface plate 23 has a width in the longitudinal orthogonal direction that can sandwich the corner plate 9 inserted between the upright plate 19 and the hanging plate 27.

A punched portion 23a having a predetermined width with respect to the longitudinal direction is formed at the central portion in the longitudinal direction of the top surface plate 23, and the restricting protruding piece 29 as the remaining side punched by the punched portion 23a is bent at the upper end of the upright plate 19. It is impossible to integrate. That is, the fold line 21 provided at the upper end of the upright plate 19 is absent at the 29 restricting protrusions. Further, on both sides in the longitudinal direction of the top plate 23, first engagement openings 23 b are formed in which the first engagement pieces 13 of the corner plate 9 sandwiched between the upright plate 19 and the hanging plate 27 are engaged. .

At the center of the edge of the bottom plate 3 located inside the fold line 17 is a second engagement opening 31 having a width corresponding to the above-mentioned restricting protruding piece 29, and thus a width and length of one sheet of paper, and A third engagement opening 33 having a width and a length is formed continuously so as to be engageable with a second engagement piece 35 described later, which is located inside the second engagement opening 31. The third engagement opening 33 is formed in an elongated shape with respect to the second engagement opening 31.

A second engagement piece 35 is integrally provided at the tip (lower end) of the drooping plate 27 so that the longitudinal direction protrudes with a length corresponding to the third engagement opening 33 described above.

The paper material of the paper storage box 1 described above has the above-mentioned predetermined shape by a punching blade and a ruled line blade (both not shown) attached to the surface plate of the punching device, and each crease at a predetermined location. It is stamped and formed to have.

The paper container 1 is assembled as follows. That is, first, the first side plate 5 is folded back along the fold line 7 with respect to the bottom plate 3, and then each corner plate 9 is moved inward along the fold line 11 with respect to both ends of the first side plate 5. Fold it in a right angle. At this time, each corner plate 9 is inclined so as to be located slightly inside the edge of the first side plate 5.

Next, in the above state, the upright plate 19 is folded back along the crease 17 with respect to the bottom plate 3 to stand up so that the inner surface coincides with the outer surface of the corner plate 9, and then the top plate 23 is attached to the upright plate 19. The plate 21 is folded back inward along the fold line 21, and then the drooping plate 27 is folded downward along the fold line 25 with respect to the top plate 23. At this time, when the top plate 23 is folded back into a flat shape, the restricting protruding piece 29 is pulled out of the punched portion 23 a and is raised up together with the upright plate 19. Further, each of the corner plates 9 is sandwiched by folding the upright plate 19, the trough plate 23, and the hanging plate 27, and the first engagement opening portion 23 b of the top plate 23 is folded back in a flat shape. Engage with. Further, as the drooping plate 27 is turned back, the second engagement piece 37 is engaged with the third engagement opening 35 to keep the drooping plate 27 in the hanging state.

Next, the operation of the paper storage box 1 assembled as described above will be described. After the product is stored in the paper storage box 1, the upper surface opening is closed with a lid, an insole or the like as necessary. Then, other paper storage boxes 1 are stacked in a predetermined number of stages above the paper storage box 1 in which the products are stored. At this time, as shown in FIG. 5, the regulation protrusions 29 provided on the second side plate 15 of the lower paper storage box 1 are formed on the bottom plate 3 of the upper paper storage box 1. The paper engaging boxes 1 that are stacked in multiple stages are engaged with the second engaging opening 31 to prevent misalignment, and the third engaging member is engaged with the second engaging opening 31 by the engagement of the restricting protrusions 29. The engagement state of the second engagement piece 37 with the joint opening 35 is strengthened.

As a result, when a plurality of paper storage boxes 1 are transported in a stacked state, the movement of the paper storage box 1 positioned above is restricted by the braking force of the vehicle or the force of vibration or the like. The collapsed state can be prevented while maintaining the stacked state. Further, the second engagement piece 37 is firmly engaged with the third engagement opening 35, so that the standing state of the second side plate 15 can be maintained firmly, and the vehicle is stopped when braking, vibrations, etc. Even if the product accommodated by this force collides with the inner surface of the second side plate 15, the product can be safely accommodated while maintaining its standing state.

Further, during the stacking work or transportation of the paper storage boxes 1 in which the products are stored, the product stored in the first side plate 5 is pressed against the first side plate 5 and acts to fall outward. In this case, the first engagement piece 13 of the corner plate 9 is engaged with the first engagement opening portion 23b of the top surface plate 23, and the first side plate 5 is restrained from being pushed outward, so that it stands up. The product can be safely stored.

  The second embodiment is characterized in that a paper containing box 63 is configured by bonding a reinforcing plate 61 having a size that integrally covers a part of the upright plate 19 and the inner surface of the regulating protrusion 29 as shown in FIG. To do. As the reinforcing plate 61, a paper material (laminated paper) having higher strength than the paper material constituting the paper container 63 is suitable.

In this example, the strength of the restricting protrusion 29 that engages with the second engagement opening 31 of the paper storage box 63 located above is increased, and the stacked paper storage boxes 63 are strengthened. It is possible to effectively prevent the paper storage box 63 from collapsing during transportation.

Note that the overall thickness is increased by fixing the reinforcing plate 61 to the inner surface of the restricting protrusion 29. For this reason, the width of the second engagement opening 31 needs to be slightly wider than that of the first embodiment. Further, the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  Example 3 is characterized in that after assembling the synthetic resin sheet on the front and back surfaces of the paper material punched and formed as shown in FIG. 2, the assembled paper container 1 is configured by the method described in Example 1. To do. This example is suitable for a paper storage box for storing and transporting frozen products.

  To cover the front and back surfaces of the paper material with the synthetic resin sheet, with the synthetic resin sheet placed on the front and back surfaces of the paper material, the synthetic resin sheet is heat-cut along the outline of the paper material and simultaneously heat-sealed. It is waterproofed by coating in an airtight manner. Further, a synthetic resin sheet may be fused to the front and back surfaces of the paper material and laminated.

FIG. 2 is a perspective view showing an outline of a paper storage box according to the present invention. It is an expanded view of a paper storage box. FIG. 2 is a vertical sectional view taken along line AA in FIG. 1. It is a BB line longitudinal cross-sectional view of FIG. It is explanatory drawing which shows the engagement state of the control protrusion at the time of stacking. It is explanatory drawing which concerns on Example 2 and shows the state which attached the reinforcement board to a part of standing board and the inner surface of a control protrusion.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper storage box 3 Bottom plate 5 1st side plate 7 Folding 9 Corner plate 11 Folding 13 1st engagement piece 15 2nd side plate 17 Folding 19 Standing plate 21 Folding 23 Top surface plate 23a Punching part 23b 1st engagement Opening 25 Folding 27 Drooping plate 29 Restriction protrusion 31 Second engagement opening 33 Third engagement opening 35 Second engagement piece 61 Reinforcement plate 63 Paper storage box

Claims (8)

A bottom plate made of paper,
A pair of first side plates integrally formed so as to be able to stand up along each long side edge of the bottom plate;
A corner plate that is bendable at the longitudinal end of each first side plate, is integrally formed extending in the longitudinal direction, and has a first engagement piece on the top;
An upright plate integrally formed so as to be able to stand up along each short side edge of the bottom plate, a top plate that is bent at the top of the upright plate, and extends in a planar shape with a width of one sheet of paper, and the top plate A second side plate consisting of a hanging plate that is bent along the end of the face plate and hangs down;
A regulation protrusion that is integrally formed at the longitudinal center of the upright plate and protrudes upward with a predetermined width;
A second engagement piece that is integrally formed at the lower end of the hanging plate and whose longitudinal direction is longer than the restriction projection piece and projects downward with a predetermined width;
A first engagement opening formed on both longitudinal sides of the top plate and engaged with a first engagement piece of a corner plate sandwiched between the upright plate and the hanging plate;
A second engagement opening formed along each short side edge of the bottom plate and engageable with the restricting protrusion, and the second engagement piece is engageable with the second engagement opening. A third engagement opening;
With
With each first side plate raised from the bottom plate, each corner plate is folded inward at a right angle. In this state, the upright plate is raised from the bottom plate, and the top plate is folded inward in a flat shape. After the first engagement piece is engaged with the first engagement opening and the corner plate is fixed, the drooping plate is folded downward to engage the second engagement piece with the third engagement opening and the bottom plate. Paper storage box that is fixed and formed into a box shape. 2. The paper container according to claim 1, wherein the paper material is one of corrugated paper, thick kraft paper, and laminated paper. 2. The paper container according to claim 1, wherein the paper material is waterproofed by covering at least the surface with a synthetic resin layer. 2. The paper storage box according to claim 1, wherein the restriction projecting piece is integrally formed by punching a central portion in the longitudinal direction of the top plate so as to be continuous with an upper end of the upright plate. 2. The paper storage box according to claim 1, wherein the restriction projecting piece is engageable with a second engagement opening of the bottom plate of the paper storage box positioned above the stacked layers. 2. The paper storage box according to claim 1, wherein a reinforcing plate is fixed to a part of the upright plate and an inner surface of the regulating protrusion. 7. The paper container according to claim 6, wherein the reinforcing plate is a plastic corrugated board or a laminated paper board. 2. The paper storage box according to claim 1, wherein the front and back surfaces of the unfolded paper material constituting the paper storage box are covered with a synthetic resin sheet to form a waterproof structure, and the paper material is assembled into a box shape.

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