JP4502623B2 - Folding container - Google Patents

Description

The present invention relates to a foldable folding container that includes a bottom portion and a side wall hinged to the bottom portion.

Conventionally, as an example, a folding method in which a long side wall is hinged to an opposing long side bank portion having a low bottom and a short side wall is hinged to an opposing short side bank having a high bottom. To fold a container that is known and has a box shape, first fold down the long side wall so that it overlaps the bottom, and then put the short side wall on top of the long side wall that overlaps the bottom It is constructed so that it can be folded into a compact state with a low height, and the substantially horizontal short side wall of the folded container in the folded state is set up substantially vertically, The long side wall in a substantially horizontal state is configured to be in a box shape by standing substantially vertically.

The assembly of the long side wall to the bottom portion described above is performed by hinge-connecting a female hinge member disposed on the long side bank portion of the bottom portion and a male hinge member disposed on the long side wall. The short side wall is assembled to the bottom by hinge-connecting a female hinge member disposed on the short side bank portion of the bottom and a male hinge member disposed on the short side wall.

As described above, the folding container is composed of a total of five members, one bottom, two long side walls, and two short side walls. The long side wall is hinged to the opposite long side bank portion having a low height, and then the short side wall is hinged to the opposing short side side bank portion having a high bottom. Such a folding container is disclosed in Patent Document 1 as an example.
No. 5-16103

In the conventional folding container described above, after the bottom and the long side wall and the bottom and the short side wall are hinge-connected, the hinge connection is arranged on the long and short side walls so that it is not easily released. Since the male hinge member is forcibly fitted into the female hinge member disposed on the long side bank portion or the short side bank portion of the bottom portion, the hinge between the male hinge member and the female hinge member is In addition to poor workability of the connecting work, there were problems such as damage to the bottom, the long side wall, and the short side wall during the hinge connecting work between the male hinge member and the female hinge member.

Further, the male hinge member disposed on the long side wall and the short side wall must be forcibly fitted into the female hinge member disposed on the long side bank portion and the short side bank portion of the bottom portion. In addition, it takes time to assemble the folding container manually by an operator, and the workability is deteriorated. Therefore, an expensive folding container assembling machine must be used, and therefore the folding container itself is expensive. There was a problem of becoming something.

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 connects the bottom part and the male hinge member disposed on the side wall that is tilted first from the box-type state by connecting the female hinge member disposed on the bottom part. By connecting the female hinge member disposed on the bottom and the male hinge member disposed on the side wall to be tilted later from the box-shaped state, the bottom wall and the side wall that is tilted first are coupled with the hinge. In the folding container configured to be hinged to the side wall to be tilted later, the side wall to be tilted first is disposed in a substantially parallel state with respect to the bottom, and then maintained in a substantially parallel state, When the hinge block of the male hinge member disposed on the side wall that is tilted first is passed through the gap formed in the female hinge member disposed on the bottom by lowering the side wall that is tilted first. , The thickness of the hinge block is determined by the gap between the outer wall of the bottom bank where the side wall to be tilted first is hinged and the tip of the hook projecting on the inner surface of the inner wall of the bottom bank. By forming it slightly thinner, the female hinge member disposed on the bottom and the hinge block of the male hinge member disposed on the side wall that is tilted first are not interfered with each other. In addition, after the side wall to be tilted later is disposed in a substantially parallel state with respect to the bottom portion, the side wall to be tilted later is lowered while maintaining the substantially parallel state, so that the female disposed on the bottom portion is disposed. When passing the hinge block of the male hinge member disposed on the side wall to be tilted later through the gap formed in the hinge member, the thickness of the hinge block is hinged to the side wall to be tilted later. Bottom Than the gap between the tip of the bank portion of the outer wall portion and the bottom portion bank portion inner wall hook projecting from the inner surface of the slightly, by thick, male hinge disposed on the side wall to be brought down after the hinge block member, the formed female hinge member disposed on a bottom gap, by forcibly spread, so as to pass through the gap formed in the female hinge member disposed on the bottom It is composed.

Since this invention has the structure mentioned above, there can exist the effect described below.

When the male hinge member disposed on the side wall that is tilted first from the box-shaped state and the female hinge member disposed on the bottom portion are connected to each other, the male hinge member and the female hinge member do not interfere with each other. Since it is configured to be hinged, the hinge coupling operation between the male hinge member disposed on the side wall to be tilted first and the female hinge member disposed on the bottom can be easily and quickly performed. Therefore, the workability of the folding container assembling work is improved, and the workability of the folding container assembling work by the operator is also improved.

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

First, the overall configuration of the folding container of the present invention will be described with reference to FIGS.

Reference numeral 1 denotes a bottom portion having a substantially rectangular planar shape, and the bottom portion 1 is formed on a bank portion 1a formed on the opposite long side (hereinafter, referred to as a long side bank portion) 1a and on the opposite short side. And the height of the long side bank portion 1a is lower than the height of the short side bank portion 1b. In addition, an appropriate number of female hinge members H1 to be described later are arranged at predetermined intervals on the long side bank portion 1a and the short side bank portion 1b.

2 is a long side wall, and a male hinge member H2 to be described later is provided on the back surface of the lower flange 2a of the long side wall 2 in correspondence with the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1. It is arranged. 3 is a short side wall, and a male hinge member H2 described later is arranged on the back surface of the lower flange 3a of the short side wall 3 in correspondence with the female hinge member H1 disposed on the short side wall bank portion 1b of the bottom portion 1. It is installed.

By connecting the male hinge member H2 disposed on the lower flange 2a of the long side wall 2 and the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1, the long side wall 2 is connected to the bottom portion 1. By connecting the male hinge member H2 which is hinged and disposed on the lower flange 3a of the short side wall 3 and the female hinge member H1 disposed on the short side bank portion 1b of the bottom 1, the short side wall is obtained. 3 is hinged to the bottom 1 to form a folding container.

A vertically long engagement frame 4 is formed by extending the plate-like part 2b at both ends of the horizontally long and substantially rectangular plate-like part 2b of the long side wall 2. A number of fitting protrusions 4a are formed.

A vertically long engagement frame 5 extending in a direction substantially perpendicular to the plate-like part 3 b is formed at both ends of the horizontally long and substantially rectangular plate-like part 3 b of the short side wall 3. Are formed with through holes 5a into which the fitting protrusions 4a protruding from the engaging frame 4 of the long side wall 2 can be fitted. Further, by forming a U-shaped slit 6 in the plate-like portion 3b located in the vicinity of the engagement frame 5, an elastic tongue piece 7 having the engagement frame 5 side formed at the free end is formed, A locking projection 7 a is formed at the tip of the elastic tongue piece 7 so as to face the engagement frame 5.

As shown in FIG. 3, in order to change from the folded state to the box-type state as shown in FIG. 1, first, the short side wall 3 in the substantially horizontal state is set to be substantially vertical. When the long side wall 2 is turned in the vertical direction, the through hole 5a formed in the engagement frame 5 of the short side wall 3 of the fitting protrusion 4a formed on the engagement frame 4 of the long side wall 2 Before and after the fitting, the engaging frame 4 of the long side wall 2 comes into contact with the locking convex portion 7a of the elastic tongue piece 7 formed on the short side wall 3 to deform the elastic tongue piece 7 outward. And when the engagement frame 4 of the long side wall 2 passed the latching convex part 7a of the elastic tongue piece 7 formed in the short side wall 3, it was pushed outside by the engagement frame 4 of the long side wall 2. The elastic tongue piece 7 is returned by its restoring force, and the engaging convex portion 7a of the elastic tongue piece 7 abuts on the engagement frame 4 of the long side wall 2 standing substantially vertically, and the bottom side 1 direction of the long side wall 2 is reached. It is comprised so that rotation to may be prevented.

In order to fold the box-shaped folding container, first, the elastic tongue piece 7 of the short side wall 3 is first placed on the outside so that the engaging projection 7a is disengaged from the engaging frame 4 of the long side wall 2. After that, the long side wall 2 is rotated in the direction of the bottom 1, so that the fitting protrusion 4 a formed on the engaging frame 4 of the long side wall 2 is formed in the engaging frame 5 of the short side wall 3. The long side wall 2 is lowered onto the bottom 1 by discharging from the through hole 5a. Thereafter, the folding container assembled in a box shape is folded by tilting the substantially vertical short side wall 3 toward the bottom 1.

Next, using FIG. 4 to FIG. 7, the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1 and the male hinge member disposed on the back surface of the lower flange 2a of the long side wall 2. H2 will be described.

The long side bank portion 1a of the bottom portion 1 includes an inner wall portion 1a1 extending substantially vertically upward from an edge portion of the bottom plate 1c of the bottom portion 1, and a horizontal portion 1a2 extending substantially horizontally outward from the upper end of the inner wall portion 1a1. And an outer wall portion 1a3 extending downward from the edge of the horizontal portion 1a2 to the vicinity of the bottom plate 1c, and a cross-sectional shape perpendicular to the longitudinal direction is formed in a substantially inverted U shape.

The long side bank portion 1a is formed with a vertical hole h1 having a rectangular planar shape, and the inner wall portion 1a1 of the long side bank portion 1a is open upward and in the direction of the bottom plate 1c. An extending rectangular cutout h2 is formed. The lateral width (length along the longitudinal direction of the long side bank portion 1a) W1 of the notch recess h2 is the long side length (length along the longitudinal direction of the long side bank portion 1a) W2 of the vertical hole h1. The shorter and cut-out recess h2 is located at a substantially central portion of the long side of the vertical hole h1. Further, a hook h3 projects from the upper end of the inner surface of the inner wall 1a1 located on both sides of the notch recess h2 (the surface located on the outer wall 1a3 side). A female hinge member H1 is constituted by the vertical hole h1, the notch recess h2 and the hook h3 formed in the long side bank portion 1a.

On the other hand, on the back surface of the lower flange 2a perpendicular to the plate-like portion 2b of the long side wall 2, a pair of plate-like support pieces h10 are provided at a predetermined interval and perpendicular to the longitudinal direction of the lower flange 2a. And a pair of support pieces h10 are connected by a connecting piece h11. The width (width in the direction perpendicular to the length direction of the plate portion 2b) W3 of the support piece h10 is greater than the short side length W4 of the vertical hole h1 formed in the long side bank portion 1a of the bottom portion 1 described above. , Slightly narrower. A hinge block h12 protrudes perpendicularly to the outer surface at the lower part of the outer surface of the pair of support pieces h10 (the surface opposite to the surface opposite to the pair of support pieces h10). A surface (hereinafter referred to as an upper surface) h12a facing the lower flange 2a of the hinge block h12 is formed as a flat surface substantially parallel to the lower flange 2a, and the plate-like portion 2b side of the upper surface h12a. A substantially rectangular parallelepiped abutting block h12b is projected from the end located on the surface, and a surface facing the upper surface h12a (a bottom surface when the long side wall 2 stands upright) h12c is a support piece. It is formed in a substantially arc shape along the substantially arcuate tip surface of h10.

The thickness of the hinge block h12 (height from the bottom surface h12c of the hinge block h12 to the top surface of the contact block portion h12b) W5 projects on the inner surfaces of the outer wall portion 1a3 and the inner wall portion 1a1 of the long side bank portion 1a of the bottom portion 1. It is slightly thinner than the gap W6 between the tip of the provided hook h3. A male hinge member H2 is constituted by the pair of support pieces h10, the connecting piece h11, and the hinge block h12 having the contact block portion h12b.

In order to hinge-connect the bottom 1 and the long side wall 2 that is tilted first from the box-shaped state, the long side wall 2 is in a substantially horizontal state so as to be substantially parallel to the bottom 1 as shown in FIG. After that, the long side wall 2 is lowered toward the bottom 1 while maintaining the state, and the support piece h10 on which the hinge block h12 formed on the long side wall 2 projects is provided on the long side side. When the hinge block h12 is inserted into the longitudinal hole h1 formed in the long side bank portion 1a while being inserted into the notch recess h2 formed in the bank portion 1a, the thickness W5 of the hinge block h12 is Since the gap W6 between the outer wall 1a3 of the long side bank portion 1a and the tip of the hook h3 projecting from the inner surface of the inner wall 1a1 is formed slightly thinner, the hinge block h12 is connected to the gap W6. Without forcing it In other words, the inner wall portion 1a1 and / or the outer wall portion 1a3 of the long side bank portion 1a are curved and deformed to protrude from the outer wall portion 1a3 of the long side bank portion 1a formed on the bottom portion 1 and the inner surface of the inner wall portion 1a1. The hinge block h12 passes between the outer wall portion 1a3 of the long side bank portion 1a and the hook h3 protruding from the inner surface of the inner wall portion 1a1 without widening the gap W6 between the hook h3 provided. 6, it will be arrange | positioned between the outer wall part 1a3 of the long side bank part 1a formed in the bottom part 1, and the inner wall part 1a1. Thus, the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1 and the male hinge member H2 disposed on the back surface of the lower flange 2a of the long side wall 2 interfere with each other. Instead, the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1 and the male hinge member H2 disposed on the long side wall 2 are hinge-connected.

When the substantially horizontal long side wall 2 is stood substantially vertically from the folded state of the folding container, a contact block portion h12b of the hinge block h12 is formed on the bottom portion 1 as shown in FIG. In addition, the lower flange 2a of the long side wall 2 enters the horizontal portion 1a2 of the long side bank portion 1a of the bottom portion 1 while it enters under the flange portion h3a of the hook h3 protruding from the inner wall portion 1a1 of the long side bank portion 1a. Will be placed. And the contact block part h12b of the hinge block h12 that has entered under the hook part h3a of the hook h3 is configured to contact the hook part h3a of the hook h3 or take an approaching position, Therefore, in the state where the folding container is assembled in a box shape, the long side wall 2 in the substantially vertical state does not rattle in the vertical direction, and is along the width W3 direction of the support piece h10 of the hinge block h12. Since the width W7 is formed wider than the gap W6 between the outer wall 1a3 of the long side bank portion 1a of the bottom 1 and the tip of the hook h3 protruding from the inner surface of the inner wall 1a1, it is substantially vertical. The male hinge member H2 disposed on the lower flange 2a of the long side wall 2 standing upright is not detached from the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1. Is constructed sea urchin.

As described above, when the long side wall 2 is arranged in a substantially horizontal state so as to be substantially parallel to the bottom portion 1, when the bottom portion 1 and the long side wall 2 that is tilted first from the box shape are hinge-connected. The thickness W5 of the hinge block h12 is slightly thinner than the gap W6 between the outer wall portion 1a3 of the long side bank portion 1a of the bottom portion 1 and the tip of the hook h3 protruding from the inner surface of the inner wall portion 1a1. Since it is formed, the male hinge member H2 disposed on the lower flange 2a of the long side wall 2 and the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1 interfere with each other. Therefore, without forcibly pushing the hinge block h12 into the gap W6, the hinge block h12 is easily protruded from the inner surface of the outer wall portion 1a3 and the inner wall portion 1a1 of the long side bank portion 1a. Pass between the hook h3 and the long side 2 of the female hinge member H1 disposed on the long sides bank portions 1a of the male hinge member H2 and bottom 1 which is arranged in a lower flange 2a is configured to be hinged. Further, when the long side wall 2 is erected substantially vertically, the width W7 along the width W3 direction of the support piece h10 of the hinge block h12 is equal to the outer wall portion 1a3 and the inner wall of the long side bank portion 1a of the bottom portion 1. Since it is formed wider than the gap W6 between the tip of the hook h3 projecting from the inner surface of the part 1a1, the male hinge member H2 disposed on the lower flange 2a of the long side wall 2 is It is comprised so that it may not remove | deviate from the female hinge member H1 arrange | positioned by the side bank part 1a. Accordingly, the hinge connection between the male hinge member H2 disposed on the lower flange 2a of the long side wall 2 and the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1 can be easily and quickly performed. When the folding container is in a box shape, the male hinge member H2 disposed on the lower flange 2a of the long side wall 2 is replaced with the female hinge member disposed on the long side bank portion 1a of the bottom portion 1. It is configured not to deviate from H1.

The hinge connection between the female hinge member H1 disposed on the short side bank portion 1b of the bottom portion 1 and the male hinge member H2 disposed on the short side wall 3 to be tilted later from the box-type state is similarly performed. The thickness of the hinge block h12 between the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1 and the male hinge member H2 disposed on the long side wall 2 that is tilted first from the box shape. W5 is slightly thinner than the gap W6 between the outer wall 1a3 of the long side bank portion 1a of the bottom 1 and the tip of the hook h3 projecting from the inner surface of the inner wall 1a1. The thickness W5 of the hinge block h12 between the female hinge member H1 disposed on the short side bank portion 1b of the bottom portion 1 and the male hinge member H2 disposed on the short side wall 3 to be tilted later from the box-type state. Is the outer wall 1b3 of the short side bank 1b of the bottom 1 and the inner Than the gap W6 between the tip of the hook h3 projecting from the inner surface parts 1b1, slightly different in that it is formed thick.

As shown in FIG. 8, the short side wall 3 is arranged in a substantially horizontal state so as to be substantially parallel to the bottom portion 1, and then the short side wall 3 is directed toward the bottom portion 1 while maintaining the state. The support piece h10 on which the hinge block h12 formed on the short side wall 3 protrudes is inserted into the notch recess h2 formed on the short side bank portion 1b, and the hinge block h12 is When inserted into the vertical hole h1 formed in the side bank portion 1b, the thickness W5 of the hinge block h12 is set to protrude from the outer wall portion 1b3 of the short side bank portion 1b of the bottom portion 1 and the inner surface of the inner wall portion 1b1. The hinge block h12 is formed on the inner wall portion 1b1 of the short side bank portion 1b of the bottom portion 1 as shown in FIG. 9 because it is formed slightly thicker than the gap W6 between the tip of h3. Located on both sides of the cut-out recess h2 A short side wall which is placed on the upper inclined surface h3b of the hook h3 projecting from the inner surface of the wall portion 1b1 and is tilted later from the box-shaped state with the female hinge member H1 disposed on the short side bank portion 1b of the bottom portion 1 3 and the male hinge member H2 disposed on 3 interfere with each other. Thereafter, the short side wall 3 and the bottom portion 1 are maintained in a substantially horizontal state, and the female hinge member H1 disposed on the short side bank portion 1b of the bottom portion 1 and the short side wall 3 which is tilted later from the box-type state. When the short side wall 3 is forcibly lowered toward the bottom 1 while the male hinge member H2 disposed in the position remains in an interference state, the hinge block h12 is moved to the short side bank portion 1b. The inner wall portion 1b1 and / or the outer wall portion 1b3 is bent and deformed, and a gap W6 between the outer wall portion 1b3 of the short side bank portion 1b formed on the bottom portion 1 and the hook h3 protruding from the inner surface of the inner wall portion 1b1 is formed. Expand and pass between the outer wall 1b3 of the short side bank 1b and the hook h3 projecting from the inner surface of the inner wall 1b1, and the outer wall 1b3 of the short side 1b3 formed on the bottom 1 It will be arrange | positioned between the inner wall parts 1b1. In this way, the female hinge member H1 disposed on the short side bank portion 1b of the bottom portion 1 and the male hinge member H2 disposed on the short side wall 3 are hinge-connected.

A female hinge member disposed on the long side bank portion 1a of the bottom portion 1 shown in FIG. 7 when the short side wall 3 in a substantially horizontal state is erected substantially vertically from the folded state of the folding container. Similarly to the engaged state between H1 and the male hinge member H2 disposed on the long side wall 2, the contact block portion h12b of the hinge block h12 is the inner wall portion 1b1 of the short side bank portion 1b formed on the bottom portion 1. The lower flange 3a of the short side wall 3 is placed on the horizontal portion 1b2 of the short side bank portion 1b of the bottom portion 1. And the contact block part h12b of the hinge block h12 that has entered under the hook part h3a of the hook h3 is configured to contact the hook part h3a of the hook h3 or take an approaching position, Therefore, in a state where the folding container is assembled in a box shape, the short side wall 3 does not rattle in the vertical direction, and the width W7 along the width W3 direction of the support piece h10 of the hinge block h12 is Since the gap W6 between the outer wall 1b3 of the short side bank portion 1b of the bottom portion 1b and the tip of the hook h3 projecting from the inner surface of the inner wall portion 1b1 is wider, it is set substantially vertically. The male hinge member H2 disposed on the lower flange 3a of the short side wall 3 is configured not to be detached from the female hinge member H1 disposed on the short side bank portion 1b of the bottom portion 1. To have.

As described above, when the short side wall 3 is arranged in a substantially horizontal state so as to be substantially parallel to the bottom portion 1, the bottom portion 1 and the short side wall 3 that is tilted first from the box shape are hinge-connected. The thickness W5 of the hinge block h12 is slightly thicker than the gap W6 between the outer wall portion 1b3 of the short side bank portion 1b of the bottom portion 1 and the tip of the hook h3 protruding from the inner surface of the inner wall portion 1b1. The gap between the outer wall portion 1b3 of the short side bank portion 1b formed on the bottom portion 1 and the hook h3 protruding from the inner surface of the inner wall portion 1b1 due to the forced lowering of the hinge block h12. By expanding W6, the hinge block h12 is passed between the outer wall portion 1b3 of the short side bank portion 1b and the hook h3 projecting from the inner surface of the inner wall portion 1b1, and is passed to the lower flange 3a of the short side wall 3 Disposed male hinge member H2 and bottom The female hinge member H1 disposed on the short side bank portion 1b is hinge-connected, and when the short side wall 3 is erected substantially vertically, the width of the support piece h10 of the hinge block h12 is increased in the width W3 direction. The width W7 along the width is formed wider than the gap W6 between the outer wall 1b3 of the short side bank portion 1b of the bottom 1 and the tip of the hook h3 projecting from the inner surface of the inner wall 1b1. The male hinge member H2 disposed on the lower flange 3a of the side wall 3 does not come off the female hinge member H1 disposed on the short side bank portion 1b of the bottom portion 1. As described above, regarding the hinge connection between the male hinge member H2 disposed on the lower flange 3a of the short side wall 3 and the female hinge member H1 disposed on the short side bank portion 1b of the bottom 1, the hinge block h12 is connected. By lowering, the gap W6 between the outer wall portion 1b3 of the short side bank portion 1b formed on the bottom portion 1 and the hook h3 protruding from the inner surface of the inner wall portion 1b1 is forcibly expanded to thereby enlarge the hinge block h12. Is configured to pass between the outer wall 1b3 of the short side bank portion 1b and the hook h3 projecting from the inner surface of the inner wall 1b1, so that even when it is tilted substantially horizontally, The male hinge member H2 disposed on the lower flange 3a of the short side wall 3 is disengaged from the female hinge member H1 disposed on the short side bank portion 1b of the bottom 1, and the hinge connection is easily released. Configured not to be In addition, even when the folding container is in a box shape, the male hinge member H2 disposed on the lower flange 3a of the short side wall 3 extends from the female hinge member H1 disposed on the short side bank portion 1b of the bottom portion 1. It is configured not to come off.

In assembling the folding container composed of a total of five members including one bottom 1, two long side walls 2, and two short side walls 3 described above, first, from a box-type state, First, the male hinge member H2 disposed on the back surface of the lower flange 2a of the long side wall 2 tilted in the direction of the bottom portion 1 and the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1 are hinge-connected, Next, from the box-type state, the male hinge member H2 disposed on the back surface of the lower flange 3a of the short side wall 3 to be tilted in the bottom 1 direction later and the female hinge member disposed on the short side bank portion 1b of the bottom 1 H1 is hinged.

In the folded container in the folded state, in other words, the long side wall 2 and the short side wall 3 are substantially horizontal, and in the substantially horizontal state, the long side wall 2 positioned below has the thickness W5 of the hinge block h12 of the bottom portion 1. Since the gap W6 between the outer wall 1a3 of the long side bank portion 1a and the tip of the hook h3 protruding from the inner surface of the inner wall 1a1 is formed slightly thinner, the lower flange 2a of the long side wall 2 is formed. The male hinge member H2 disposed on the back surface is easily detached from the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1, but the short side wall 3 is disposed on the long side wall 2. The short side wall 3 positioned on the long side wall 2 has a hook W3 having a thickness W5 of the hinge block h12 projecting from the inner surface of the outer wall 1b3 and the inner wall 1b1 of the short side bank 1b of the bottom 1. It is formed thicker than the gap W6 between Therefore, the male hinge member H2 disposed on the lower flange 3a of the short side wall 3 is configured not to be detached from the female hinge member H1 disposed on the short side bank portion 1b of the bottom portion 1. ing. Therefore, as long as the male hinge member H2 disposed on the lower flange 3a of the short side wall 3 does not deviate from the female hinge member H1 disposed on the short side bank portion 1b of the bottom 1, the short side wall 3 The male hinge member H2 disposed on the back surface of the lower flange 2a of the long side wall 2 that is maintained below is not detached from the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1. .

As described above, the thickness W5 of the hinge block h12 of the male hinge member H2 disposed on the long side wall 2 protrudes from the inner surfaces of the outer wall portion 1a3 and the inner wall portion 1a1 of the long side bank portion 1a of the bottom portion 1. Since it is formed thinner than the gap W6 between the front end of the hook h3, the long side wall 2 that is tilted first from the box-type state, in other words, the long side wall 2 that is raised later from the folded state is provided. When the female hinge member H1 disposed on the bottom portion 1 and the male hinge member H2 disposed on the long side wall 2 are hingedly connected to each other, the bottom portion 1 is disposed on the bottom portion 1. The female hinge member H1 and the male hinge member H2 disposed on the long side wall 2 do not interfere with each other. Therefore, the male hinge member H2 disposed on the long side wall 2 that is tilted first and the bottom 1 Easy hinge connection with the female hinge member H1 And quickly can be performed, thus, the folding together workability of assembly work is improved containers also improves workability of the assembly operation of the folding container manually by an operator.

In addition, the thickness W5 of the hinge block h12 of the male hinge member H2 disposed on the short side wall 3 is such that the hook h3 protrudes from the inner surface of the outer wall 1b3 and the inner wall 1b1 of the short side bank 1b of the bottom 1. Is formed thicker than the gap W6 between the front end of the bottom side 1 and the short side wall 3 that is tilted later from the box-type state, in other words, the short side wall 3 that is first raised from the folded state, When the female hinge member H1 disposed on the bottom portion 1 and the male hinge member H2 disposed on the short side wall 3 are hinge-connected, the female hinge member disposed on the bottom portion 1 H1 and the male hinge member H2 disposed on the short side wall 3 are hinge-coupled while interfering with each other. Therefore, the male hinge member H2 disposed on the lower flange 3a of the short side wall 3 is Female hinge member H disposed on the short side bank 1b There is no such thing as deviate from.

In the embodiment described above, the short side wall 3 in the substantially horizontal state is first set up substantially vertically, and then the long side wall 2 is set in the direction of the short side wall 3 set up substantially vertically. Although the example in which the folding container is in a box shape is shown by rotating to the right, first, the long side wall 2 in the substantially horizontal state is first set up substantially vertically from the folded state, and then the short side By rotating the side wall 3 in the direction of the long side wall 2 which is set up substantially vertically, the folding container can be in a box shape. In this case, the long side wall 2 is hinged to the long side bank portion of the bottom portion 1 having a high height, and the short side wall 3 is hinged to the long side side bank portion of the bottom portion 1 having a low height. Will be.

FIG. 1 is a perspective view of a folding container of the present invention in a box shape. FIG. 2 is a perspective view of the folding container of the present invention during assembly or folding. FIG. 3 is a perspective view of the folding container of the present invention in a folded state. FIG. 4 is a partially exploded perspective view for explaining the hinge connection between the long side wall and the bottom of the folding container according to the present invention. FIG. 5 is a vertical cross-sectional view of the hinge connection portion for explaining the hinge connection between the long side wall and the bottom of the folding container of the present invention. FIG. 6 is also a vertical sectional view of a hinge connection portion for explaining the hinge connection between the long side wall and the bottom of the folding container of the present invention. FIG. 7 is also a vertical sectional view of a hinge connection portion for explaining the hinge connection between the long side wall and the bottom of the folding container of the present invention. FIG. 8 is a vertical cross-sectional view of the hinge connection portion for explaining the hinge connection between the short side wall and the bottom of the folding container of the present invention. FIG. 9 is a vertical sectional view of a hinge connection portion for explaining the hinge connection between the short side wall and the bottom of the folding container according to the present invention. FIG. 10 is also a vertical cross-sectional view of the hinge connection portion for explaining the hinge connection between the short side wall and the bottom of the folding container of the present invention.

Explanation of symbols

H1 ... Female hinge member H2 ... Male hinge member h3 ... Hook h10 ... ····· Support piece h12 ·················································································· 1b ..... Short side bank 2 ..... Long side wall 3 .... Short side wall

Claims (1)

By connecting the female hinge member disposed on the bottom and the male hinge member disposed on the side wall that is tilted first from the box-type state, the bottom and the side wall that is tilted forward are hinge-connected. The bottom part and the side wall to be tilted later are hingedly connected by connecting the female hinge member disposed on the bottom part and the male hinge member disposed on the side wall to be tilted later from the box-type state. In the folded container, the side wall to be tilted first is disposed in a substantially parallel state with respect to the bottom, and then the side wall to be tilted forward is lowered while maintaining the substantially parallel state, thereby bringing the side wall to the bottom. When the hinge block of the male hinge member disposed on the side wall to be tilted first is passed through the gap formed in the disposed female hinge member, the thickness of the hinge block is tilted first. Is Than the gap between the tip of the side wall protruding from the inner surface of the inner wall portion of the outer wall and said bottom bank of the bottom bank portion which is hinged a hook, slightly, by thin, arranged in the bottom The hinged female hinge member and the hinge block of the male hinge member disposed on the side wall to be tilted first are configured not to interfere with each other. On the other hand, after being arranged in a substantially parallel state, the side wall to be tilted later is lowered while maintaining the substantially parallel state, thereby being tilted later in the gap formed in the female hinge member disposed at the bottom. When the hinge block of the male hinge member disposed on the side wall is passed, the thickness of the hinge block is determined according to the outer wall portion of the bottom bank portion and the bottom bank portion to which the side wall to be tilted later is hinged. Of the inner wall Than the gap between the tip of the hook projecting from the surface, somewhat, by increasing formation, the hinge block of the male hinge member disposed on the side wall to be brought down after the is disposed on said bottom female a gap formed in the hinge member, by forcing spreading, container folding characterized in that it is configured to pass through the gap formed in the female hinge member disposed on the bottom portion.

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