JP4939363B2 - 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.

  Further, in order to form the hinge block and the engagement block on the upper and lower sides of the support piece, respectively, on the support piece constituting the male hinge member, the support piece has to be lengthened. There was a problem that the male hinge member was easily damaged.

  Furthermore, 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, and therefore the cost of the mold increases. 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. When the horizontal side wall is lifted by forming a horizontal side wall lifting prevention locking projection on the locking hook of the female hinge member disposed at the bottom of the folding container composed of the opposite side walls The locking block of the male hinge member disposed on the side wall abuts against the horizontal side wall lifting prevention locking projection, and when the vertical side wall is lifted, the locking block is disposed on the side wall. The locking block portion of the male hinge member is configured to abut against the locking hook of the female hinge member disposed on the bottom.

  A locking projection for preventing the horizontal side wall from lifting is formed on the locking hook of the female hinge member disposed on the bottom, and when the horizontal side wall is lifted, the engagement of the male hinge member disposed on the side wall is increased. When the vertical side wall is lifted up, the locking block portion of the male hinge member disposed on the side wall is disposed on the bottom. Since it is configured to abut against the locking hook of the female hinge member provided, when the side wall in the tilted state is erected in the vertical direction as in the conventional folding container described above, the engagement block is Therefore, the side wall in the collapsed state can be quickly and surely set up substantially vertically without being brought into contact with the bank portion or riding on the bank portion.

  Further, since the engagement block as described in Patent Document 1 described above is not formed on the male hinge member disposed on the side wall, the length from the lower end flange of the side wall of the support block is shortened. Therefore, it is possible to prevent the support block and thus 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 block of the male hinge member disposed on the side wall, the manufacturing cost of the mold for molding the side wall is not provided. Can be reduced.

  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 lower than the height of the short side bank portion 1b. Is formed.

  As shown in FIG. 3, a plurality of female hinge members H <b> 1 to be described later are disposed on the long side bank portion 1 a constituting the bottom portion 1, and similarly, the short side portion constituting the bottom portion 1 is arranged. A plurality of female hinge members H1 are also disposed on the side bank portion 1b.

  Reference numeral 2 denotes a long side wall. As shown in FIG. 4, the back surface of the lower end flange 2 a of the long side wall 2 corresponds to the female hinge member H <b> 1 disposed on the long side bank portion 1 a of the bottom portion 1. And the male hinge member H2 mentioned later is arrange | positioned. 3 is a short side wall, and a male hinge member H2 is disposed on the back surface of the lower end 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. ing.

  By connecting the male hinge member H2 disposed on the lower end 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 that is hinged and disposed on the lower end flange 3a of the short side wall 3 and the female hinge member H1 that is 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.

  As shown in FIG. 2, in order to assemble from a folded state into a box shape as shown in FIG. 1, first, the horizontal short side wall 3 is first set up substantially vertically, Next, by folding the long side wall 2 substantially vertically, the folding container is assembled into a box shape. In order to fold a folded container assembled in a box shape, first, the long side wall 2 is folded down so as to overlap the bottom portion 1, and then the short side wall 3 is overlapped with the long side wall 2 that is tilted first. The folding container is folded by defeating it.

  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 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. In the following, the female hinge member H1 disposed on the long side bank portion 1a will be described, and the female hinge member H1 disposed on the short side bank portion 1b is substantially the same. Detailed description thereof will be omitted.

  The female hinge member H1 has a vertical hole 4 having a rectangular planar shape into which a male hinge member H2 disposed on the long side wall 2, which will be described later, can be fitted. An outer vertical wall 4a formed by extending the outer wall 1a1 of the bank portion 1a upward; an inner vertical wall 4b formed by extending the inner wall 1a2 of the long side bank portion 1a; It is surrounded by opposing vertical short walls 4c that connect the vertical wall 4a and the inner vertical wall 4b. Further, the inner wall 1a2 and the inner vertical wall 4b of the long side bank portion 1a are connected to the vertical hole 4 and extend from the upper end of the inner vertical wall 4b to the bottom plate 1c of the bottom portion 1 or to the vicinity of the bottom plate 1c. An existing notch recess 5 is formed.

  A hook support protrusion 6 is formed in parallel with the outer vertical wall 4a at the upper end of the opposite side end surface 5a forming the notch recess 5, and the inner surface of the hook support protrusion 6 (the outer vertical wall 4a and On the opposing surface), a block-like locking hook 7 projects. A locking projection 7a having a flange 7a1 is formed at the upper corner of the locking hook 7 facing the outer vertical wall 4a. As will be described later, the locking protrusion 7a is for preventing the long side wall 2 folded in a horizontal state from being lifted. Hereinafter, the locking protrusion 7a is raised for the sake of convenience. This is called a prevention locking projection.

  A female hinge member H1 is constituted by the vertical hole 4, the notch recess 5, the locking hook 7, and the like described above.

  Next, the male hinge member H2 disposed on the long side wall 2 will be described with reference to FIGS. A similar male hinge member H2 is also disposed on the short side wall 3.

  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 has a support block 8 suspended from the back surface of the lower end flange 2a. Have.

  A locking block portion 9 perpendicular to the side surface 8a is formed at a lower end portion of the side surface 8a facing the support block 8 and perpendicular to the plate-like portion 2b of the long side wall 2. The block portion 9 is formed with a locking bulge portion 9a that extends beyond the inner surface 8b of the support block 8 (the surface located on the inner side of the folding container assembled in a box shape).

  A male hinge member H2 is configured by the support block 8 and the locking block portion 9 disposed on the lower end flange 2a of the long side wall 2 described above.

  As described in Patent Document 1 mentioned above. By connecting the male hinge member H2 disposed on the lower end 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 1 to each other, the long side wall 2 is By connecting a male hinge member H2 which is hinged to the bottom 1 and disposed on the lower end flange 3a of the short side wall 3 and a female hinge member H1 which is disposed on the short side bank portion 1b of the bottom 1 The short side wall 3 is configured to be hinged to the bottom 1.

  Next, referring to FIGS. 9 to 11, the folding container is disposed on the female hinge member H <b> 1 disposed on the bottom 1 and the long side wall 2 in the folded state as illustrated in FIG. 2. As shown in FIG. 1, the hinge connecting part with the male hinge member H2 and the folding container are assembled in a box shape as shown in FIG. The hinge connection part with the male hinge member H2 arrange | positioned by 2 is demonstrated.

  As shown in FIG. 9, when the folding container is folded and the long side wall 2 is tilted substantially horizontally, the male hinge member H2 disposed on the long side wall 2 tilted later is configured. When the folding container is assembled in a box shape, the vertical hole 4 of the hinge member H1 disposed in the bottom portion 1 is formed when the folding container is assembled in a box shape. An upper outer corner portion 9d formed by the outer vertical wall 4a and the outer vertical surface 9c facing the outer vertical wall 4a is formed on the locking hook 7 of the hinge member H1 disposed on the bottom portion 1 to prevent horizontal side wall lifting. The projection 7a is configured to contact or approach the collar portion 7a1. Therefore, even if the horizontal long side wall 2 tilted later is lifted upward, the upper outer corner portion 9d of the locking block 9 is attached to the locking hook 7 of the hinge member H1 disposed on the bottom portion 1. The formed horizontal side wall lifting prevention locking projection 7a is in contact with the flange portion 7a1 to prevent the horizontal side wall 2 from being lifted further. Therefore, the bottom 1 and the horizontal side wall 2 are prevented from being lifted. The hinge connection is not released.

  10 and 11, the male container provided on the long side wall 2 when the long side wall 2 is set up substantially vertically is assembled in a box shape as shown in FIGS. The locking bulging portion 9a of the locking block portion 9 constituting the member H2 contacts the flange portion 7b of the locking hook 7 constituting the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1. When the vertical long side wall 2 is lifted upward, the latch that constitutes the male hinge member H2 disposed on the long side wall 2 is configured so as to be in contact with or close to each other. Since the block portion 9 abuts against the flange portion 7b of the locking hook 7 constituting the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1, further lifting of the long side wall 2 is prevented. Therefore, the hinge connection between the bottom 1 and the long side wall 2 in the vertical state is released. There is no such thing as.

  By the way, when the folding container is folded and the long side wall 2 is in a horizontal state, as shown in FIG. 12, the locking block portion constituting the male hinge member H2 disposed on the long side wall 2 9 is located between the locking hook 7 constituting the female hinge member H1 formed on the long side bank portion 1a of the bottom portion 1 and the outer vertical wall 4a constituting the vertical hole 4 of the male hinge member H2. However, from this state, when the long side wall 2 in a state of being tilted substantially horizontally is rotated in the vertical direction, the male disposed on the long side wall 2 as shown in FIG. The locking block portion 9 constituting the hinge member H2 is sandwiched between the locking hook 7 constituting the female hinge member H1 formed on the long side bank portion 1a of the bottom portion 1 and the inner surface 4a1 of the outer vertical wall 4a. In some cases, the rotation of the long side wall 2 in the vertical direction is prevented.

  In the present embodiment, as shown in FIG. 6 and the like, the long side bank portion 1a of the bottom portion 1 is disposed so as not to prevent the long side wall 2 from rotating in the vertical direction as described above. The corner portion curved surface is removed by removing the corner portion 7d formed by the vertical surface 7c and the flange portion 7b of the locking hook 7 facing the outer vertical wall 4a of the vertical hole 4 constituting the female hinge member H1. 7e is formed. In addition, the corner | angular part curved surface 7e can also be made into an inclined surface.

  As described above, the corner portion 7d formed by the vertical surface 7c and the flange portion 7b of the locking hook 7 constituting the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1 has a corner Since the curved surface 7e is formed, the horizontal side wall 2 shown in FIG. 9 is turned upright as shown in FIG. 14, the upper outer corner portion 9 d of the locking block portion 9 constituting the male hinge member H <b> 2 disposed on the long side wall 2 is disposed on the long side bank portion 1 a of the bottom portion 1. The support block 8 constituting the male hinge member H2 is in contact with the inner surface 4a1 of the outer vertical wall 4a while being in contact with the corner curved surface 7e of the locking hook 7 constituting the female hinge member H1. Locking block constituting the male hinge member H2 by the reaction force of 9d can enter the flange portion 7b of the locking hook 7 constituting the female hinge member H1 along the corner curved surface 7e of the locking hook 7 constituting the female hinge member H1. . Therefore, when the long side wall 2 in the horizontal state is erected substantially vertically, the locking block portion 9 constituting the male hinge member H2 disposed on the long side wall 2 is formed on the long side bank portion 1a of the bottom portion 1. The hook 7b of the locking hook 7 constituting the female hinge member H1 that is disposed smoothly enters the hook 7b, and the long side wall 2 is not prevented from rotating in the vertical direction.

  15 and 16, instead of forming the corner curved surface 7e at the corner 7d of the locking hook 7 constituting the female hinge member H1, the male hinge member H2 disposed on the long side wall 2 is provided. The protruding amount from the inner surface 8b of the support block 8 of the locking bulge portion 9a of the locking block portion 9 to be configured is increased. In other words, the thickness of the locking block portion 9 (the distance between the outer vertical surface 9c of the locking block portion 9 and the inner vertical surface 9e parallel to the outer vertical surface 9c) T1 is increased to increase the length in the horizontal state. The inner vertical surface 9e of the locking block portion 9 of the side wall 2 is located below the corner portion 7d of the locking hook 7 constituting the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1. It is what you do.

  By configuring as described above, as shown in FIG. 16, when the long side wall 2 is rotated in the vertical direction, the male hinge member H2 disposed on the long side wall 2 is configured. The top surface 9b of the stop block portion 9 abuts against the corner portion 7d of the locking hook 7 constituting the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1, and the male hinge member H2 is The upper inner corner portion opposed to the upper outer corner portion 9d of the locking block portion 9 constituting the male hinge member H2 due to the reaction force caused by the support block 8 constituting the contact with the inner surface 4a1 of the outer vertical wall 4a. 9f can enter the flange portion 7b of the locking hook 7 constituting the female hinge member H1 disposed on the long side bank portion 1a of the bottom portion 1. Therefore, when the long side wall 2 in the horizontal state is erected substantially vertically, the locking block portion 9 constituting the male hinge member H2 disposed on the long side wall 2 is formed on the long side bank portion 1a of the bottom portion 1. The hook 7b of the locking hook 7 constituting the female hinge member H1 that is disposed smoothly enters the hook 7b, and the long side wall 2 is not prevented from rotating in the vertical direction.

  As described above, when the locking projection 7a for preventing the horizontal side wall lifting is formed on the locking hook 7 of the female hinge member H1 disposed on the bottom 1, when the long side wall 2 in the horizontal state is lifted, When the locking block portion 9 of the male hinge member H2 disposed on the long side wall 2 comes into contact with the horizontal side wall lifting prevention locking projection 7a and the vertical side wall 2 is lifted, the long side wall 2 is lifted. Since the locking block portion 9 of the male hinge member H2 disposed on the side wall 2 is configured to come into contact with the locking hook 7 of the female hinge member H1 disposed on the bottom portion 1, Patent Document 1 described above As described, a hinge block is formed at the lower end of the support piece, and a side wall in a tilted state is provided above the hinge block, like a male hinge member formed with an engagement block. When standing upright, the engagement block , Or in contact with the bank portion of the bottom, or without such rides on the bank portion, therefore, the long side wall 2 of the defeated state, quickly, and can reliably, stand substantially vertically.

  In addition, since the male hinge member H2 disposed on the long side wall 2 is not formed with an engagement block as described in Patent Document 1 described above, the lower end flange 2a of the long side wall 2 of the support block 8 is formed. Therefore, it is possible to prevent the support block 8, and consequently the male hinge member H2, from being damaged.

  Furthermore, since the engagement block as described in Patent Document 1 described above is not formed on the support block 8 of the male hinge member H2 disposed on the long side wall 2, the long side wall 2 is formed. The manufacturing cost of the mold can be reduced.

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 in a folded state. FIG. 3 is a perspective view of the bottom part of the folding container of the present invention. FIG. 4 is a perspective view of a long side wall constituting the folding container of the present invention. FIG. 5 is an enlarged perspective view of a female hinge member disposed on the bottom of the folding container of the present invention. FIG. 6 is a partial vertical cross-sectional view of the female hinge member disposed on the bottom of the folding container of the present invention. FIG. 7 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. 8 is also an enlarged perspective view of a male hinge member disposed on the long side wall constituting the folding container of the present invention. FIG. 9 is a partial vertical cross-sectional view of the hinge connecting portion formed by the female hinge member at the bottom and the male hinge member at the long side wall when the folding container of the present invention is folded. FIG. 10 is a partial vertical cross-sectional view of the hinge connecting portion by the bottom female hinge member and the long side male hinge member in a state where the folding container of the present invention is assembled in a box shape. FIG. 11 is a partial perspective view of a hinge connecting portion formed by a bottom female hinge member and a long side male hinge member in a state where the folding container of the present invention is assembled in a box shape. FIG. 12 is a partial vertical cross-sectional view of a hinge connection portion formed by a bottom female hinge member and a long side male hinge member in a state in which a folding container according to another embodiment of the present invention is folded. FIG. 13 is a partial vertical cross-sectional view of a hinge connecting portion formed by a female hinge member at the bottom and a male hinge member at the long side wall when the folding container according to another embodiment of the present invention is folded. FIG. 14 is a partial vertical cross-sectional view of a hinge connecting portion including a female hinge member at the bottom and a male hinge member at the long side wall similar to FIG. 9. FIG. 15 is a partial vertical cross-sectional view of a hinge connecting portion formed by a bottom female hinge member and a long side male hinge member in a state in which a folding container according to still another embodiment of the present invention is folded. FIG. 16 is a partial vertical cross-sectional view of a hinge connecting portion by a bottom female hinge member and a long side male hinge member in a folded state of a folding container according to still another embodiment of the present invention similar to FIG. 15. .

Explanation of symbols

H1 ..... Female hinge member H2 ..... Male hinge member 1・ ・ Bottom 2 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Long side wall 3 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Short side wall 7 ・ ・ ・ ・ ・ ・ ・ ・··············································································································・ ・ ・ ・ ・ ・ ・ ・ Corner curved surface 8 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Support block 9 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・・ Locking block

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 The locking hook of the female hinge member disposed on the bottom is formed with a locking protrusion for preventing the horizontal side wall from being lifted. When the horizontal side wall is lifted, the male hook disposed on the side wall The locking block portion of the hinge member abuts against the horizontal side wall lifting prevention locking projection, and when the vertical side wall is lifted, the locking block portion of the male hinge member disposed on the side wall is A folding container characterized in that it is configured to abut against a locking hook of a female hinge member disposed at the bottom.

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