JP4944729B2 - Folding container - Google Patents

Description

  The present invention comprises a bottom, one opposing side wall hinged to one opposing bank portion of the bottom, and another opposing side wall hinged to the other opposing bank portion of the bottom. From the state of being assembled into a box shape, one side wall is brought down so that it overlaps the bottom, and then the other side wall is brought into contact with the other one that has been pushed down first. It is comprised so that it can fold by falling down so that it may overlap with the side wall to do.

  A type in which the male hinge member formed on the side wall cannot move freely in the vertical direction relative to the female hinge member formed on the bottom bank portion, in other words, the hinge connecting portion by the male hinge member and the female hinge member However, in a folding container of a type that cannot move substantially in the vertical direction, when one of the opposite side walls is tilted, the tip ends of the side walls overlap each other. The side wall superimposed on the side wall is inclined and tilted with the hinge connecting portion as a fulcrum. As described above, in the folding container configured such that the side wall is inclined and tilted, the height of the folding container in the folded state is increased, and accordingly, the accommodation efficiency of the folding container is lowered.

  In order to solve the above-described problem, the depth of the concave portion of the female hinge portion formed on the bottom bank portion is increased, and the female hinge portion formed on the bottom bank portion is formed on the side wall. A type in which the male hinge member can freely move in the vertical direction in the concave portion of the female hinge portion, in other words, the hinge connecting portion by the male hinge member and the female hinge member is movable in the vertical direction. Although a type of folding container is known, when such a type of folding container is assembled into a box shape, the hinge connection part can be moved vertically, so that the worker can When trying to lift the folding container assembled in a box shape, there was a problem that the side wall was lifted from the bottom.

  In order to solve the above-mentioned problem, the present applicant, in Patent Document 1 which is an earlier application of the present applicant, has a hinge block and a box shape serving as a pivot fulcrum of the side wall on a male hinge member formed on the side wall. The folding container formed with the engagement block for preventing the side wall from being lifted in the assembled state is proposed.

JP 2006-188272 A

  In the folding container described above, a hinge block is formed at the lower part of the support piece constituting the male hinge member formed on the side wall, and an engagement block for preventing lifting is formed at the upper part of the support piece. Therefore, when the side wall in the collapsed state is erected in the vertical direction, the engagement block is brought into contact with the bank portion on the bottom or climbed on the bank portion, etc. There was a problem that the side wall could not be erected quickly and surely substantially vertically.

  In addition, since the hinge block and the engagement block are formed on the support piece constituting the male hinge member, the mold for molding the side wall becomes complicated, thus increasing the cost of the mold. As a result, there is a problem that the manufacturing cost of the folding container increases.

  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 configured such that one opposite side wall hinged to one opposite bank portion of the bottom portion and the other bottom portion is hinged to the other opposite bank portion of the bottom portion. In the folding container composed of opposite side walls, a long hole and a pair of connecting holes formed in the horizontal portion of the bank portion, a pair of vertically long vertical slits and a tongue piece formed in the inner vertical portion are formed. A male hinge member disposed on a side wall comprising a pair of support pieces suspended from a lower end flange and a bridging block is coupled to a first female hinge member disposed on a bottom portion comprising a vertical side wall lifting prevention hook. In addition, a long hole and a pair of connecting holes formed in the horizontal portion of the bank portion, a pair of vertically long vertical slits formed in the inner vertical portion, and a horizontal side wall lifting prevention hook formed in the tongue piece By connecting a male hinge member disposed on a side wall comprising a pair of support pieces suspended from the lower end flange and a bridging block to a second female hinge member disposed on the bottom portion, the side wall is formed on the bottom portion. It is configured to be hinged.

  As in the conventional folding container described above, when the side wall in the collapsed state is erected in the vertical direction, the engagement block does not come into contact with the bottom bank part or ride on the bank part. Therefore, the side wall in the collapsed state can be erected quickly and reliably almost vertically.

  Since only the bridge block is formed on the support piece of the male hinge member disposed on the side wall, and the engagement block as described in Patent Document 1 is not formed, the support piece. Therefore, it is possible to prevent the male hinge member from being damaged.

  Further, since the engagement block as described in Patent Document 1 described above is not formed on the support piece of the male hinge member, it is possible to reduce the manufacturing cost of the mold for molding the side wall. .

  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. In this embodiment, the height of the long side bank portion 1a is higher than the height of the short side bank portion 1b. Is formed.

  The long side bank portion 1a includes an inner vertical portion 1a1 that is substantially perpendicular to the long side of the plate portion 1c of the bottom portion 1, a horizontal portion 1a2 that extends substantially horizontally outward from the upper end of the inner vertical portion 1a1, and a horizontal portion 1a2. The outer vertical portion 1a3 that extends substantially vertically downward from the front end of the rim is formed, and a cross section perpendicular to the longitudinal direction of the long side bank portion 1a is formed in a substantially inverted U shape. . Similarly, the short side bank portion 1b includes an inner vertical portion 1b1 that is substantially perpendicular to the short side of the plate portion 1c of the bottom portion 1, and a horizontal portion 1b2 that extends substantially horizontally outward from the upper end of the inner vertical portion 1b1, It is composed of an outer vertical portion 1b3 extending substantially vertically downward from the tip of the horizontal portion 1b2, and a cross section perpendicular to the longitudinal direction of the short side bank portion 1b is also formed in a substantially inverted U shape. Has been.

  The long side bank portion 1a of the bottom portion 1 is provided with a first female hinge member H1 ′ and a second female hinge member H1 ″ which will be described later, and the short side bank portion 1b of the bottom portion 1 is also A similar first female hinge member H1 ′ and second female hinge member H1 ″ are disposed.

  As shown in FIG. 3, in order to assemble from a folded state into a box shape as shown in FIG. 1, first, as shown in FIG. The folding container is assembled in a box shape by standing the long side wall 2 substantially vertically and then standing the short side wall 3 in a horizontal state substantially vertically. In order to fold a folded container assembled in a box shape, first, as shown in FIG. 2, the short side wall 3 is folded down so as to overlap the bottom portion 1, and then the long side wall 2 is moved first. The folding container is folded by being tilted so as to overlap the short side wall 3 that has been tilted.

  In the folded state, the tip portions of the long side walls 2 are configured to partially overlap each other, and similarly, the tip portions of the short side walls 3 are also configured to partially overlap each other.

  Next, the first female hinge member H1 'disposed on the long side bank portion 1a and the short side bank portion 1b of the bottom 1 will be described with reference to FIGS. In the following, the first female hinge member H1 ′ disposed on the long side bank portion 1a will be described, and the first female hinge member H1 ′ disposed on the short side bank portion 1b will be substantially described. The detailed description is omitted.

  A horizontally long slot h1 is formed in the horizontal portion 1a2 of the long side bank portion 1a along the longitudinal direction of the long side bank portion 1a. In addition, a pair of connecting holes h2 that communicate with the long hole h1 and reach the inner vertical part 1a1 are formed in the horizontal part 1a2 located at both ends in the longitudinal direction of the long hole h1. Further, the inner vertical portion 1a1 has an upper end communicating with the connecting hole h2 and a pair of vertically long vertical slits h3 extending from the horizontal portion 1a2 toward the plate portion 1c of the bottom portion 1. Yes.

  As described above, by forming a pair of vertical slits h3 at a predetermined interval in the inner vertical portion 1a1, a substantially square tongue piece h4 is formed between the pair of vertical slits h3. Become. A block-shaped hook h5 is projected from the upper end of the inner surface (surface facing the outer vertical portion 1a3) h4a of the tongue piece h4. The hook h5 is for preventing the long side wall 2 from being lifted upright, and hereinafter, the hook h5 will be referred to as a vertical side wall lifting preventing hook for convenience.

  A long horizontal hole h1 and a pair of connecting holes h2 formed in the horizontal portion 1a2 of the long side bank portion 1a, a pair of vertical vertical slits h3 formed in the inner vertical portion 1a1 and the upper end of the inner surface h4a of the tongue piece h4 The first female hinge member H1 ′ is configured by the vertical side wall lifting prevention hook h5 formed in the portion.

  Next, the second female hinge member H1 ″ disposed on the long side bank portion 1a and the short side bank portion 1b of the bottom portion 1 will be described with reference to FIGS. The second female hinge member H1 "disposed on the side bank portion 1a will be described, and the second female hinge member H1" disposed on the short side bank portion 1b is substantially the same. Therefore, the detailed description is abbreviate | omitted.

  Similarly to the first female hinge member H1 ′ described above, the horizontal portion 1a2 of the long side bank portion 1a is formed with a horizontally long slot h1 along the longitudinal direction of the long side bank portion 1a. In addition, a pair of connecting holes h2 that communicate with the long hole h1 and reach the inner vertical part 1a1 are formed in the horizontal part 1a2 located at both ends in the longitudinal direction of the long hole h1. Further, the inner vertical portion 1a1 has an upper end communicating with the connecting hole h2 and a pair of vertically long vertical slits h3 extending from the horizontal portion 1a2 toward the plate portion 1c of the bottom portion 1. Yes.

  As described above, by forming a pair of vertical slits h3 at a predetermined interval in the inner vertical portion 1a1, a substantially square tongue piece h4 is formed between the pair of vertical slits h3. Become. A block-shaped hook h6 protrudes from the upper end portion of the inner surface (surface facing the outer vertical portion 1a3) h4a of the tongue piece h4. The hook h6 is for preventing the long side wall 2 from being lifted in the horizontal state, and hereinafter, the hook h6 will be referred to as a horizontal side wall lifting preventing hook for convenience.

  As described above, the first female hinge member H1 ′ and the second female hinge member H1 ″ are provided with the hook h5 for preventing the vertical side wall from protruding on the inner surface h4a of the tongue piece h4 of the first female hinge member H1 ′. However, the difference is only in that a horizontal side wall lifting prevention hook h6 protrudes from the inner surface h4a of the tongue piece h4 of the second female hinge member H1 ″, and the other configurations are the same. Therefore, a configuration common to the first female hinge member H1 ′ and the second female hinge member H1 ″, for example, a pair of vertically long vertical slits h3 formed in the long hole h1, the pair of connecting holes h2, and the inner vertical portion 1a1. The same sign is attached to the tongue piece h4.

  A long horizontal hole h1 and a pair of connecting holes h2 formed in the horizontal portion 1a2 of the long side bank portion 1a, a pair of vertical vertical slits h3 formed in the inner vertical portion 1a1 and the upper end of the inner surface h4a of the tongue piece h4 A second female hinge member H1 ″ is constituted by the horizontal side wall lifting prevention hook h6 formed in the portion.

  Among the plurality of female hinge members formed on the long side bank portion 1a of the bottom portion 1, some female hinge members are configured as first female hinge members H1 ′, and some other female hinge members The member is configured as a second female hinge member H1 ". Similarly, among the plurality of female hinge members formed on the short side bank portion 1b of the bottom portion 1, several female hinge members are the first ones. It is configured as one female hinge member H1 ′, and some other female hinge members are configured as second female hinge members H1 ″.

  In FIG. 4, of the four female hinge members disposed on the long side bank portion 1 a of the bottom portion 1, two female hinge members positioned near both ends are configured as a first female hinge member H1 ′. In this example, the two female hinge members located in the central portion are configured as the second female hinge member H1 ″, and 2 formed on the short side bank portion 1b of the bottom portion 1 is shown. Of the two female hinge members, one female hinge member is configured as a first female hinge member H1 ′, and the other female hinge member is configured as a second female hinge member H1 ″. Yes.

  The number of the female hinge members formed on the long side bank portion 1a of the bottom portion 1 may be two or more, and more can be provided as necessary. Similarly, the short side of the bottom portion 1 is also provided. The number of female hinge members formed on the bank portion 1b may be two or more, and more may be provided as necessary.

  2 is a long side wall, 3 is a short side wall, and a male hinge member H2 is disposed on the lower end flange 2a of the long side wall 2 and the lower end flange 3a of the short side wall 3. In the present embodiment, the male hinge member disposed on the lower end flange 2a of the long side wall 2 and the male hinge member disposed on the lower end flange 3a of the short side wall 3 have the same structure. .

  Next, the male hinge member H2 will be described with reference to FIGS. As described above, the male hinge member H2 disposed on the lower end flange 2a of the long side wall 2 and the male hinge member H2 disposed on the lower end flange 3a of the short side wall 3 have the same structure. Therefore, the male hinge member H2 disposed on the long side wall 2 will be described below.

  A male hinge member H2 is disposed on the back surface of the lower end flange 2a perpendicular to the plate-like portion 2b of the long side wall 2. The male hinge member H2 is suspended from the back surface of the lower end flange 2a at a predetermined interval. It has the vertically long and substantially rectangular plate-like support piece h10. The lower end portions h10a of the pair of support pieces h10 are formed in a substantially semicircular shape, and the support pieces h10 are suspended vertically with respect to the plate-like portion 2b of the long side wall 2.

  A bridging block h11 for bridging the pair of support pieces h10 is formed at the lower ends of the pair of support pieces h10 suspended from the back surface of the lower end flange 2a. The bridging block h11 has an upper surface h11a that faces the lower end flange 2a and is substantially parallel to the lower end flange 2a. The upper surface h11a of the long side wall 2 located on the plate-like portion 2b side has a prismatic contact shape. A contact block h11b is formed. Further, the lower surface h11c of the bridging block h11 facing the upper surface h11a is formed in a circular arc shape along the substantially semicircular lower end portion h10a of the support piece h10.

  A male hinge member H2 is configured by the pair of support pieces h10 suspended from the back surface of the lower end flange 2a of the long side wall 2 and the bridge block h11 that bridges the pair of support pieces h10.

  A male hinge member H2 is arranged on the lower end flange 2a of the long side wall 2 corresponding to the first female hinge member H1 ′ and the second female hinge member H1 ″ disposed on the long side bank portion 1a of the bottom portion 1. Similarly, the lower end flange 3a of the short side wall 3 also corresponds to the first female hinge member H1 ′ and the second female hinge member H1 ″ disposed on the short side bank portion 1b of the bottom portion 1. The male hinge member H2 is disposed.

  The male hinge member H2 disposed on the lower end flange 2a of the long side wall 2 and the first female hinge member H1 ′ disposed on the long side bank portion 1a of the bottom 1 are connected, and the lower end flange of the long side wall 2 is connected. The long side wall 2 is hingedly connected to the bottom portion 1 by connecting the male hinge member H2 provided on 2a and the second female hinge member H1 "provided on the long side bank portion 1a of the bottom portion 1 to each other. In addition, the male hinge member H2 disposed on the lower end flange 3a of the short side wall 3 and the first female hinge member H1 ′ disposed on the short side bank portion 1b of the bottom portion 1 are coupled, and the short side wall 3 The short side wall 3 is connected to the bottom 1 by connecting the male hinge member H2 disposed on the lower end flange 3a of the first side and the second female hinge member H1 "disposed on the short side bank 1b of the bottom 1 to each other. It is hinged to form a folding container. .

  When folding a folding container assembled in a box shape, first, of the opposing short side walls 3, one short side wall 3 is brought down so as to overlap the bottom 1, and then the other short side wall 3 is moved down. Then, it is tilted substantially horizontally on the short side wall 3 that has been tilted first so that the tip portions overlap each other. Next, one long side wall 2 of the opposed long side walls 2 is tilted substantially horizontally on the substantially horizontal short side wall 3 of the opposed short side walls 3 that has been tilted later, and then the opposed long side walls 2 are opposed to each other. Of the side walls 2, the other long side wall 2 is tilted substantially horizontally on the long side wall 2 that has been tilted first so that the tip portions thereof overlap each other. In this manner, the folding container assembled in the box shape shown in FIG. 1 is folded as shown in FIG.

  A vertical slit formed in the inner vertical portion 1a1 of the long side bank portion 1a constituting the first female hinge member H1 ′ and the second female hinge member H1 ″ disposed on the long side bank portion 1a of the bottom portion 1 The depth of h3 (the distance from the horizontal portion 1a2 of the long side bank portion 1a to the lower end h3a of the vertical slit h3) is the width (long) of the support piece h10 constituting the male hinge member H2 disposed on the long side wall 2. (The length in the vertical direction with respect to the plate-like portion 2b of the side wall 2), and is configured to have a depth substantially twice as long as the long side wall 2 is tilted. The support piece h10 of the disposed male hinge member H2 moves up and down along a vertical slit h3 formed in the inner vertical portion 1a1 of the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1. In other words, the long side wall 2 in the horizontal state The vertical hinge h3 can be moved up and down along the vertical slit h3, and the male hinge member H2 disposed on the long side wall 2 that has been tilted first among the opposing long side walls 2 is supported. The piece h10 is located in the lower half of the vertical slit h3 formed in the inner vertical portion 1a1 of the first female hinge member H1 ′ and the second female hinge member H1 ″ disposed on the long side bank portion 1a of the bottom portion 1. The supporting piece h10 of the male hinge member H2 disposed on the long side wall 2 that is tilted later among the opposing long side walls 2 is a first female disposed on the long side bank portion 1a of the bottom portion 1. It is located in the upper half of the vertical slit h3 formed in the inner vertical portion 1a1 of the hinge member H1 ′ and the second female hinge member H1 ″.

  Of the long side walls 2 standing substantially vertically, the first long side wall 2 that is tilted first is placed on the substantially horizontal short side wall 3 that is tilted later among the short side walls 3 that face each other. 11, the bridging block h <b> 11 constituting the male hinge member H <b> 2 disposed on one long side wall 2 is connected to the long side bank portion 1 a of the bottom portion 1 as shown on the right side of FIG. 11. The second female hinge member H1 "disposed on the horizontal side wall lifting prevention hook h6 is positioned below the long side wall 2 that has been tilted first. When the other long side wall 2 is tilted substantially horizontally so that the front ends overlap each other, as shown on the left side of FIG. Bridging block h11 of male hinge member H2 disposed on lower end flange 2a of long side wall 2 The abutting block portion h11b constituting the abutting portion approaches or approaches the flange portion h6a of the horizontal side wall lifting prevention hook h6 of the second female hinge member H1 ″ disposed on the long side bank portion 1a of the bottom portion 1. It is comprised so that it may be located. Therefore, in the folded state of the folding container, even if the other long side wall 2 located at the top is lifted up, the male hinge member disposed on the other long side wall 2 that is tilted later The abutment block portion h11b constituting the bridge block h11 of H2 contacts the flange portion h6a of the horizontal side wall lifting prevention hook h6 of the second female hinge member H1 "disposed on the long side bank portion 1a of the bottom portion 1. As a result of the contact, further lifting of the other long side wall 2 is prevented.

  Of the long side walls 2 standing substantially vertically, the first long side wall 2 that is tilted first is placed on the substantially horizontal short side wall 3 that is tilted later among the corresponding short side walls 3. When tilted substantially horizontally, as shown on the right side of FIG. 12, the bridging block h <b> 11 constituting the male hinge member H <b> 2 disposed on one long side wall 2 is the long side bank of the bottom portion 1. It is configured to be positioned below the vertical side wall lifting prevention hook h5 constituting the first female hinge member H1 ′ disposed in the portion 1a. Further, when the other long side wall 2 is tilted substantially horizontally on the one long side wall 2 that has been previously tilted so that the tip portions thereof overlap each other, it is shown on the left side of FIG. As shown in the figure, the bridge block h11 of the male hinge member H2 disposed on the lower end flange 2a of the other long side wall 2 which is tilted substantially horizontally afterward is disposed on the long side bank portion 1a of the bottom portion 1. The vertical side wall lifting prevention hook h5 that constitutes the first female hinge member H1 ′ and the outer vertical portion 1a3 that constitutes the long side bank portion 1a of the bottom portion 1 are arranged.

  When the long side wall 2 is erected substantially vertically, the lower end flange 2a of the long side wall 2 is placed on the horizontal portion 1a2 of the long side bank portion 1a constituting the bottom portion 1 as shown in FIG. The first female hinge is placed on the long side bank portion 1a of the bottom portion 1 while the contact block portion h11b of the bridging block h11 constituting the male hinge member H2 disposed on the long side wall 2 is placed. The vertical side wall lifting prevention hook h5 constituting the member H1 ′ is configured to contact or approach the flange h5a of the hook h5. When the long side wall 2 in the vertical state is lifted upward, the contact block portion h11b of the bridging block h11 constituting the male hinge member H2 disposed on the long side wall 2 is Since it abuts against the flange h5a of the vertical side wall lifting prevention hook h5 constituting the first female hinge member H1 'disposed in the portion 1a and further lifting of the long side wall 2 is prevented, therefore, the bottom 1 And the long side wall 2 in the vertical state are not released from the hinge connection.

  When the long side wall 2 is erected substantially vertically, the lower end flange 2a of the long side wall 2 is a horizontal portion of the long side bank portion 1a constituting the bottom portion 1 as shown in FIG. The abutment block portion h11b of the bridging block h11 that is placed on 1a2 and constitutes the male hinge member H2 disposed on the long side wall 2 is a second portion disposed on the long side bank portion 1a of the bottom portion 1. It is configured to be positioned below the horizontal side wall lifting prevention hook h6 constituting the female hinge member H1 ″.

  As described above, a horizontally long slot h1 and a pair of connecting holes h2 formed in the horizontal portion 1a2 of the long side bank portion 1a, a pair of vertically long vertical slits h3 and a tongue piece h4 formed in the inner vertical portion 1a1. A pair of support pieces h10 suspended from the back surface of the lower end flange 2a is attached to a first female hinge member H1 'disposed on the bottom portion 1 formed of a vertical side wall lifting prevention hook h5 formed at the upper end portion of the inner surface h4a of And a long oblong hole formed in the horizontal portion 1a2 of the long side bank portion 1a while connecting the male hinge member H2 disposed on the long side wall 2 composed of a bridge block h11 that bridges the pair of support pieces h10. h1 and a pair of connecting holes h2, a pair of vertically long vertical slits h3 formed in the inner vertical portion 1a1, and a horizontal side wall lifting prevention hook h6 formed at the upper end of the inner surface h4a of the tongue piece h4. The second female hinge member H1 ″ disposed in the portion 1 is disposed on the long side wall 2 including a pair of support pieces h10 suspended from the back surface of the lower end flange 2a and a bridging block h11 that bridges the pair of support pieces h10. Since the long side wall 2 is hingedly connected to the bottom portion 1 by connecting the provided male hinge member H2, the lower end portion of the support piece as described in Patent Document 1 described above is used. When the side wall in the tilted state is erected in the vertical direction, like the male hinge member in which the hinge block is formed and the engagement block is formed above the hinge block, the engagement block is There is no contact with the bottom bank or climbing over the bank. Therefore, the long side wall 2 in the collapsed state can be quickly and reliably set up substantially vertically.

  Further, since the support piece h10 constituting the male hinge member H2 disposed on the long side wall 2 is merely formed with a bridging block h11 that bridges the pair of support pieces h10, the length of the support piece h10 is long. The length of the side wall 2 from the lower end flange 2a can be shortened, and therefore, the support piece h10 and thus the male hinge member H2 can be prevented from being damaged.

  Furthermore, the support piece h10 of the male hinge member H2 is merely formed with a bridging block h11 for bridging the pair of support pieces h10, and an engagement block as described in Patent Document 1 described above is formed. Since it is not carried out, the manufacturing cost of the metal mold | die for shape | molding the long side wall 2 can be reduced.

  Further, the lower end corner portion h5b of the vertical side wall lifting prevention hook h5 constituting the first female hinge member H1 ′ disposed on the long side bank portion 1a of the bottom portion 1 is not a substantially perpendicular corner portion but is inclined. It is formed on a surface or a curved surface. This lower end corner part h5b is referred to as a lower end corner part curved surface h5b.

  As described above, the lower end corner curved surface h5b is formed on the vertical side wall lifting prevention hook h5 constituting the first female hinge member H1 ′ disposed on the long side bank portion 1a of the bottom portion 1. Therefore, the long side wall 2 in the horizontal state shown in FIG. 12 is male male disposed on the long side wall 2 in the turning process of the long side wall 2 standing substantially vertically as shown in FIG. The abutting block h11b of the bridging block h11 constituting the hinge member H2 abuts on the lower end corner curved surface h5b of the vertical side wall lifting prevention hook h5 constituting the first female hinge member H1 ′, and the male hinge member H2 The bridging block h11 that constitutes the male hinge member H2 is caused by a reaction force caused by the bridging block h11 that constitutes the abutting against the outer vertical wall 1a3 that constitutes the long side bank portion 1a of the bottom portion 1. The block h11b has a vertical side wall lifting prevention hook h5 constituting the first female hinge member H1 ′ along the lower end corner curved surface h5b of the vertical side wall lifting prevention hook h5 constituting the first female hinge member H1 ′. It can enter into the buttocks h5a. Therefore, when the long side wall 2 in the horizontal state is erected substantially vertically, the contact block portion h11b of the bridging block h11 constituting the male hinge member H2 disposed on the long side wall 2 is on the long side side of the bottom portion 1. The vertical side wall lifting prevention hook h5 constituting the first female hinge member H1 ′ disposed on the bank portion 1a smoothly enters the flange portion h5a, and the long side wall 2 is prevented from rotating in the vertical direction. There is no such thing.

FIG. 1 is a perspective view of the folding container of the present invention in a state of being assembled into 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 perspective view of the bottom part of the folding container of the present invention. FIG. 5 is an enlarged perspective view of the first female hinge member disposed on the bottom of the folding container of the present invention. FIG. 6 is an enlarged perspective view of the first female hinge member disposed on the bottom part of the folding container of the present invention. FIG. 7 is an enlarged perspective view of the second female hinge member disposed on the bottom of the folding container of the present invention. FIG. 8 is an enlarged perspective view of the second female hinge member disposed on the bottom of the folding container of the present invention. FIG. 9 is an enlarged perspective view of the male hinge member disposed on the long side wall constituting the folding container of the present invention. FIG. 10 is an enlarged perspective view of the male hinge member disposed on the long side wall constituting the folding container of the present invention. FIG. 11 is a partial vertical sectional view along the short side wall in a state in which the folding container of the present invention is folded. FIG. 12 is also a partial vertical sectional view along the short side wall in a state where the folding container of the present invention is folded. FIG. 13 is a partial vertical cross-sectional view of the hinge connecting portion by the first female hinge member at the bottom and the male hinge member at the long side wall in a state where the folding container of the present invention is assembled in a box shape. FIG. 14 is a partial vertical cross-sectional view of the hinge connecting portion by the second female hinge member at the bottom and the male hinge member at the long side wall in a state where the folding container of the present invention is assembled in a box shape.

Explanation of symbols

H1 '... 1st female hinge member H1 "... 2nd female hinge member H2 ...・ ・ ・ ・ ・ Male hinge member h1 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Long hole h2 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Connection hole h3 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・····················································································································· ································································································································· h11b ··································································· Long Side bank 1b ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・Side bank portions 2 ............... long side walls 3 ............... short side wall

Claims (1)

  In a folding container composed of one opposite side wall hinged to the bottom and one opposite bank of the bottom and another opposite side wall hinged to the other opposite bank of the bottom , And a pair of connecting holes formed in the horizontal part of the bank, a pair of vertically long slits formed in the inner vertical part, and a vertical side wall lifting prevention hook formed in the tongue piece. The first female hinge member provided is connected to a male hinge member disposed on a side wall composed of a pair of support pieces suspended from the lower end flange and a bridging block, and is formed on the horizontal portion of the bank portion. A second female hinge portion disposed at the bottom portion comprising a hole, a pair of connecting holes, a pair of vertically long vertical slits formed in the inner vertical portion, and a horizontal side wall lifting prevention hook formed in the tongue piece In, by connecting the male hinge member disposed on a side wall consisting of a pair of supporting pieces which are suspended in the lower flange and the cross-linking block, container folding and features that are hinged to the side wall to the bottom.

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