JP2014080216A - Foldable container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foldable container which prevents a bank portion thereof having a large height from inclining or deforming outward when a large load is applied on a short side wall hinged to the bank portion from inside of the container toward outside and which prevents the bank portion from collapsing when the foldable contained is stacked.SOLUTION: A foldable container comprises: a bottom 1 having a lower bank portion 1a and a higher bank portion relative each other; a side wall 2 on one side which is hinged to the lower bank portion 1a and which is folded first; and a side wall on the other side which is hinged to the higher bank portion and which is folded later, the side walls relative each other. A reinforcement block is formed in a corner formed by the lower bank portion 1a and the higher bank portion. A fitting recess h4 formed in the reinforcement block for fitting a fitting recess h11 which is formed in a fitting recess for the reinforcement block formed on the side wall which is folded first is formed.

Description

  The present invention relates to a folding container that can be folded so that a side wall disposed so as to surround the bottom portion overlaps the bottom portion.

  Conventionally, the bottom having a substantially rectangular planar shape has a low-height bank portion 1 formed on the opposite long side and a high-height bank portion formed on the opposite short side, A folding container is known in which a long side wall is hinged to a low bank and a short side wall is hinged to a high bank.

  A corner reinforcement block extending in the direction of the bank with a low height is formed from both ends of the bank with a high height at the bottom, and the corner between the corner reinforcement block and the bank with a low height is formed. A folding container having a reinforcing connecting member formed in the part is known. By forming such a reinforcing connecting member, the high bank prevents the bank from being inclined or deformed to the outside, and the folding container located below when the folding containers are stacked. It is possible to prevent the high bank portion 1a of the bottom 1 of the container from buckling and being damaged.

  A folding container having the above-described configuration is disclosed in Patent Document 1.

JP 2003-237778 A

In recent years, with the increase in the size of the folding container and the weight of articles accommodated in the folding container, a large load is applied from the inside to the outside of the folding container on the short side wall hinged to the high bank of the folding container. Is added to the corner of the corner reinforcement block and the low bank, and the container is tilted or deformed to the outside of the high bank, or the container is folded. There has been a problem that buckling and the like when stacking can not be prevented.

  In particular, with the increase in the size of the folding container, when the height of the long side wall and the short side wall is increased, from the state assembled in the box shape, first, the front end portions of the long side wall that are tilted in the bottom direction, In order to overlap each other, the height of the high bank portion to which the short side wall to be tilted later is hinged must be increased. Increasing the height of the high bank will naturally cause tilting or deformation of the high bank to the outside, or buckling when folding containers are stacked. There was a problem that it was easy.

  An object of the present invention is to solve the problems of the above-described conventional folding container.

  In order to achieve the above-mentioned object, the present invention is provided with a bottom portion having a relatively low bank portion and a relatively high bank portion, and a hinge connected to the low height bank portion, which are first tilted down. In a folding container having one opposite side wall and another opposite side wall hinged to a higher bank, the lower bank and the higher bank Reinforcing blocks are formed in the corners formed by the above, and are formed in the fitting concave portions formed in the reinforcing blocks, in the fitting concave portions for reinforcing blocks formed in the opposite side walls that are tilted first. A fitting convex part is comprised so that it may fit.

  A bottom part having a relatively low bank part and a high bank part opposite to each other, a pair of opposite side walls that are hinged to the low bank part, and a high bank In a folding container having another opposite side wall that is hinged to the other part and is tilted later, a reinforcing block is provided at a corner formed by the low bank part and the high bank part. The fitting convex part formed in the fitting concave part for reinforcement blocks formed in the opposite side wall which is formed in the fitting concave part formed in the reinforcement block is formed so that it may be fitted. Therefore, it is possible to prevent the bank portion having a high bottom from being tilted outward, deformed, or buckled.

FIG. 1 is a perspective view of the folding container of the present invention assembled in a box shape. FIG. 2 is a perspective view showing a state in which the long side wall of the folding container of the present invention is folded. FIG. 3 is a perspective view of the folded container of the present invention in a folded state. FIG. 4 is a partially enlarged perspective view of the bottom of the folding container of the present invention. FIG. 5 is a partially enlarged perspective view of the long side wall of the folding container of the present invention. FIG. 6 is a partially enlarged exploded perspective view of the bottom and the long side wall of the folding container of the present invention. FIG. 7 is a partially enlarged perspective view of the folding container of the present invention assembled in a box shape. FIG. 8 is a partially enlarged perspective view of the bottom of another embodiment of the folding container of the present invention. FIG. 9 is a partially enlarged perspective view of the long side wall of another embodiment of the folding container of the present invention.

  Examples of the present invention will be described below. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

  First, an outline of the folding container of the present invention, which is substantially similar to the above-described conventional folding container, will be outlined.

  Also in the present invention, the bottom 1 constituting the folding container has a planar shape formed in a substantially rectangular shape, and a low-height bank (hereinafter simply referred to as a bank) formed on one opposite long side of the bottom 1. 1a and a high bank portion (hereinafter simply referred to as a high bank portion) 1b formed on the other opposing short side. A long side wall 2 is hinged to the lower bank portion 1a, and a short side wall 3 is hinged to the upper bank 1b. Then, as shown in FIG. 1, when the folding container is folded from the box-shaped state, first, as shown in FIG. As shown in FIG. 3, the box-shaped assembly can be folded by tilting the short side wall 3 so as to overlap the previously tilted long side wall 2 as shown in FIG. 3. It is configured as follows.

  As shown in FIG. 4, a reinforcing block H1 is formed at the corner formed by the upper surface 1a1 of the lower bank portion 1a and the upper surface 1b1 of the higher bank portion 1b. The wall thickness (width in the direction perpendicular to the longitudinal direction of the lower bank portion 1a) and the wall thickness of the lower bank portion 1a (width in the direction perpendicular to the longitudinal direction of the lower bank portion 1a) are substantially the same. It is configured to be thick.

  The reinforcing block H1 has a side portion h1 that is substantially perpendicular to the upper surface 1a1 of the lower bank portion 1a, and a top portion h2 that is located below the upper surface 1b1 of the higher bank portion 1b. Further, a curved surface h3 is formed at a corner portion formed between the side portion h1 and the top portion h2 of the reinforcing block H1 so that the side portion h1 and the top portion h2 are not perpendicular to each other. By forming such a curved surface h3, the strength and rigidity of the low bank portion 1a, the corner reinforcement block H, and the high bank portion 1b can be increased.

  In addition, a fitting recess h4 is formed in the top part h2 of the reinforcing block H1 so that the upper and bottom plate 1c sides of the bottom part 1 are opened. The fitting recess h4 is formed by opposing side wall portions h4a parallel to the side portion h1 and a back wall portion h4b connecting the opposite end of the opposite side wall portion h4a to the bottom plate 1c. C1 is a female hinge member disposed on the low bank portion 1a and the high bank portion 1b. Since such a female hinge member C1 is well known before the application of the present application, the description thereof is omitted. .

  Next, the long side wall 2 in which the male hinge member C2 is disposed corresponding to the female hinge member C1 disposed in the lower bank portion 1a of the bottom portion 1 will be described with reference to FIGS. Since the male hinge member C2 is also well known before the application of the present application, the description thereof is omitted.

  As is well known, the long side wall 2 is formed with a lower end horizontal flange 2a on which a male hinge member C2 is suspended, and the long side wall 2 has a vertical end flange 2b perpendicular to the lower end horizontal flange 2a. Is formed.

  For the reinforcing block to which the above-described reinforcing block H1 is fitted when the folding container is assembled in a box shape at the lower corner formed by the lower end horizontal flange 2a and the vertical end flange 2b of the long side wall 2 A fitting recess H2 is formed.

  A prismatic fitting convex portion h11 that is fitted to the fitting concave portion h4 formed in the reinforcing block H1 is suspended from the top portion h10 that forms the reinforcing block fitting concave portion H2. The fitting protrusion h11 is an inner vertical surface h11a that is flush with the inner surface 2c1 of the inner surface of the plate-like portion 2c of the long side wall 2 (the surface that is positioned inside the folding container when the folding container is assembled into a box shape), The outer vertical surface h11b does not reach the tip of the lower end horizontal flange 2a and the tip of the vertical end flange 2b.

  When assembling the folding container having the above-described configuration into a box shape from the folded state, first, the short side wall 3 is set up substantially vertically, and then the long side wall 2 is set up substantially vertical. Become. In the process of standing the long side wall 2 substantially vertically, the reinforcing block formed at the lower corner of the long side wall 2 is fitted into the fitting recess h4 formed in the top part h2 of the reinforcing block H1 disposed on the bottom part 1. The fitting convex part h11 suspended from the top part h10 of the fitting concave part H2 is configured to be fitted as shown in FIG.

  As described above, when the folding container is assembled into a box shape, the reinforcement formed in the lower corner of the long side wall 2 is fitted into the fitting recess h4 formed in the reinforcement block H1 disposed in the bottom 1. Since the fitting convex portion h11 formed in the block fitting concave portion H2 is configured to be fitted, the short side wall 3 hinged to the high bank portion 1b of the folding container is connected to the folding container of the folding container. When a large load is applied from the inside to the outside and the short side wall 3 is deformed to the outside, the fitting protrusions suspended from the top part h10 of the reinforcing block fitting depression H2 disposed on the long side wall 2 Since the portion h11 is configured to contact the side wall portion h4a constituting the fitting recess h4 formed in the top portion h2 of the reinforcing block H1 disposed on the bottom portion 1, the high bank portion of the bottom portion 1 1b tilts outward or deforms Or, alternatively, it can be prevented as plus buckled.

  Next, another embodiment of the present invention will be described with reference to FIGS.

  In this embodiment, the back wall portion h4b of the fitting recess h4 formed in the reinforcement block H1 disposed in the bottom portion 1 in the above-described embodiment is deleted, and the fitting recess h4 ′ is replaced with the reinforcement block H1. The width (width in the direction perpendicular to the longitudinal direction of the lower bank portion 1a) is formed over the entire width of W1.

  As described above, the fitting recess h4 ′ is formed over the entire width of the width W1 of the reinforcing block H1 (the width in the direction perpendicular to the longitudinal direction of the low bank portion 1a). The fitting projection h11 ′ corresponding to the mating projection h11 is also formed to have the same width as the width W2 of the vertical end flange 2b of the long side wall 2 (width in the direction perpendicular to the longitudinal direction of the vertical end flange 2b). Yes.

  By configuring as described above, it is possible to more reliably prevent the high bank portion 1b of the bottom portion 1 from being inclined outward, deformed, or buckled.

1 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Bottom 1a ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Lower bank 1b ・ ・ ・ ・ ・ ・ ・ ・ Higher bank 2 ・ ・ ・・ ・ ・ ・ ・ ・ ・ ・ ・ Long side wall 3 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Short side wall H1 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Reinforcement block H2 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・··· Recessed block fitting recesses h4, h4 '······················································

Claims (1)

A bottom part having a relatively low bank part and a high bank part opposite to each other, a pair of opposite side walls that are hinged to the low bank part, and a high bank In a folding container having another opposite side wall that is hinged to the other part and is tilted later, a reinforcing block is provided at a corner formed by the low bank part and the high bank part. The fitting convex part formed in the fitting concave part for reinforcement blocks formed in the opposite side wall which falls down first is fitted in the fitting concave part formed in the reinforcement block. Folding container characterized by being made.

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