JP2014084115A - Folding container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve article taking-out workability by taking out an article housed in a box-shaped folding container without being hooked in a step part while being guided by a slope part to realize smooth article taking-out work.SOLUTION: A folding container includes a step part S1 having a roughly perpendicular angle, which is formed by a lower end horizontal flange 2a and a plate part 2b of a side wall 2 between a bottom part 1 and the side wall 2 having no draft when the folding container is assembled into a box shape because a draft 1a1' is formed in the bank part 1a of the bottom part 1. In the state where the folding container is assembled into the box shape, a slope part S2 is formed to reach the upper end of the draft 1a1' of the bank part 1a from the lower end of the inner surface 2b1 of the plate part 1b of the side wall 2.

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 conventional folding container will be described with reference to FIGS.

  The bottom part 1 is a bank part (hereinafter referred to as a long side bank part) 1a formed on the opposite long side and a bank part (hereinafter referred to as a short side bank part) formed on the opposing short side. ) 1b, and the height of the long side bank portion 1a is lower than the height of the short side bank portion 1b. Further, an appropriate number of female hinge members H1 described later are arranged at predetermined intervals on the long side bank portion 1a and the short side bank portion 1b.

  A male hinge member H2 described later is disposed on the back surface of the lower horizontal 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. A male hinge member H2 to be described later is also disposed on the back surface of the lower horizontal 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.

  By connecting the male hinge member H2 disposed on the lower horizontal 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 disposed on the lower horizontal 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 portion 1; The short side wall 3 is hinged to the bottom 1 to form a folding container.

  Next, 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 will be described with reference to FIG. Regarding the female hinge member H1 disposed on the short side bank portion 1b and the male hinge member H2 disposed on the short side wall 3, the female hinge member H1 disposed on the long side bank portion 1a and Since it has the same configuration as the male hinge member H2 disposed on the long side wall 2, in the following, it is disposed on the female hinge member H1 and the long side wall 2 disposed on the long side bank portion 1a. The provided male hinge member 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 1b 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, and the inner wall portion 1a1 is open at the top and has a notch recess h2 extending in the direction of the bottom plate 1b. . 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 configured by the vertical hole h1, the notch recess h2, and the hook h3.

  On the other hand, a pair of plate-like support pieces h10 are vertically suspended on the back surface of the lower end horizontal flange 2a of the long side wall 2 and a connecting piece h11 for connecting the pair of support pieces h10 is provided. Is formed. In addition, 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). The pair of support pieces h10, the connecting piece h11, and the hinge block h12 constitute a male hinge member H2.

  In order to hinge-connect the bottom part 1 and the long side wall 2, as shown in FIG. 3, the long side wall 2 is disposed so as to be substantially parallel to the bottom plate 1c of the bottom part 1, and thereafter, in a substantially horizontal state. The long side wall 2 is lowered toward the bottom 1, and the support piece h10 on which the hinge block h12 formed on the long side wall 2 protrudes is inserted into the notch recess h2 formed on the long side bank portion 1a. When the hinge block h12 is inserted into the vertical hole h1 formed in the long side bank portion 1a, the hinge block h12 is disposed between the outer wall portion 1a3 and the inner wall portion 1a1 of the long side bank portion 1a. Will be. In this way, 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.

  As described above, after 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, as shown in FIG. As shown, when the long side wall 2 is erected in a substantially vertical state, the hinge block h12 of the male hinge member H2 disposed on the long side bank portion 1a is connected to the long side bank portion 1a of the bottom portion 1. It is comprised so that it may be located in the lower surface of the hook h3 of the female hinge member H1 arrange | positioned.

  The folding container as described above is disclosed in Patent Document 1 as an example.

No. 5-16103

  In the conventional folding container described above, after the bottom portion 1 is injection-molded, when the bottom portion 1 is pulled out from the mold, the bottom portion 1 molded from the mold can be easily pulled out from the mold. On the inner wall 1a1 of the long side bank portion 1a of the bottom 1, a draft surface 1a1 ′ inclined to the outer wall 1a3 side is formed including the female hinge member H1.

  As described above, since the draft surface 1a1 ′ is formed on the long side bank portion 1a of the bottom portion 1, between the bottom portion 1 and the long side wall 2 that does not require such draft angle, As shown in FIG. 5, a step S <b> 1 having a substantially perpendicular corner is formed between the lower horizontal flange 2 a of the long side wall 2 and the inner wall 1 a 1 of the long side bank 1 a of the bottom 1. Will be.

  As described above, when the stepped portion S1 is formed between the lower horizontal flange 2a of the long side wall 2 and the inner wall portion 1a1 of the long side bank portion 1a of the bottom portion 1, the folding container assembled in a box shape is formed. When taking out the housed article, the article is caught on the stepped portion S1, and there is a problem that the work for taking out the article of the folding container assembled in a box shape is hindered.

  As described above, the step S1 formed between the lower horizontal flange 2a of the long side wall 2 and the inner wall 1a1 of the long side bank portion 1a of the bottom 1 is the lower horizontal flange 3a and the bottom 1 of the short side wall 3. It is also formed between the inner wall of the short side bank 1b.

  In order to eliminate the stepped portion S1 as described above, the inner wall portion 1a1 of the long side bank portion 1a of the bottom portion 1 and the inner wall portion of the short side bank portion 1b are substantially set to the lower horizontal flange 2a of the long side wall 2. The inner wall portion 1a1 of the long side bank portion 1a and the inner wall portion of the short side bank portion 1b are connected to the bottom plate of the bottom portion 1 so as to coincide with the inner surface 2b1 of the vertical plate portion 2b and the inner surface of the plate portion 3b of the short side wall 3. When moving in the 1c direction, there is a problem that the internal capacity of the folding container decreases, and conversely, the inner wall portion 1a1 of the long side bank portion 1a of the bottom 1 and the inner wall portion of the short side bank portion 1b are In order to match the inner surface 2b1 of the plate portion 2b of the long side wall 2 and the inner surface 3b1 of the plate portion 3b of the short side wall 3, when the thickness of the long side wall 2 and the short side wall 3 is reduced, the strength of the long side wall 2 and the short side wall 3 is increased. And there is a problem that the rigidity is lowered.

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

  In order to achieve the above-described object, the present invention has a draft surface on the bank portion 1a at the bottom, so that when the folding container is assembled into a box shape, such draft is formed between the bottom and the draft. In a folding container in which a stepped portion having a substantially right angle corner formed by a horizontal flange at the lower end of the side wall and a plate portion is formed between the side walls that are not required, in a state where the folding container is assembled in a box shape An inclined surface portion that extends from the lower end portion of the inner surface of the plate portion of the side wall to the upper end portion of the draft surface of the bank portion is formed.

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

  Since the draft surface is formed on the long side bank of the bottom, when the folding container is assembled into a box shape, the long side is not between the bottom and the long side wall that does not require such draft. In a folding container formed with a step portion having a substantially right-angled corner formed by the horizontal flange at the lower end of the side wall and the plate portion, in the state where the folding container is assembled in a box shape, Since the inclined surface part that reaches from the lower end part to the upper end part of the draft surface of the long side bank part is formed, the articles contained in the folding container assembled in a box shape are caught by the step part while being guided by the inclined surface part. Therefore, the work for taking out the article can be performed smoothly, and the workability of the work for taking out the article is improved.

  Moreover, the problem that the internal volume of a folding container reduces and the problem that the intensity | strength and rigidity of a long side wall and a short side wall fall can be solved by forming the inclined surface part as mentioned above.

FIG. 1 is a partially enlarged vertical sectional view of a folding container according to the present invention. FIG. 2 is an overall perspective view of a conventional folding container similar to the present invention. FIG. 3 is a partially enlarged vertical sectional view showing a state in which a long side wall of a conventional folding container similar to the present invention is folded. 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 partially enlarged vertical sectional view similar to FIG. 1 of a conventional folding container.

  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.

  The detailed description of the common structural members of the present invention and the above-described conventional folding container will be omitted as appropriate, and the same reference numerals are used for the common structural members. Further, the hinge connection state of 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 and the short side bank portion 1b of the bottom portion 1 Since the hinge connection state of the female hinge member H1 disposed and the male hinge member H2 disposed on the short side wall 3 is substantially the same, the long side bank of the long side wall 2 and the bottom 1 will be described below. The relationship with the part 1a will be described.

  The present invention will be described based on FIG. 1 similar to FIG. 5 of a conventional folding container.

  As described above, after the bottom portion 1 is injection-molded, when the bottom portion 1 is pulled out from the mold, the long side of the bottom portion 1 can be easily pulled out from the mold. The inner wall 1a1 of the side bank 1a is formed with a draft surface 1a1 ′ that is inclined toward the outer wall 1a3, including the female hinge member H1.

  Since the draft surface 1a1 ′ is formed on the long side bank portion 1a of the bottom portion 1, when the folding container is assembled in a box shape, the bottom portion 1 and a length that does not require such draft angle are used. Between the side wall 2, in other words, between the lower end horizontal flange 2 a of the long side wall 2 and the inner wall portion 1 a 1 of the long side bank portion 1 a of the bottom portion 1, the plate portion 2 b of the long side wall 2 and the lower end horizontal flange 2 a A stepped portion S1 having a substantially right-angled corner portion is formed.

  In the present invention, the plate portion 2b of the long side wall 2 and the lower end forming the step portion S1 formed between the lower end horizontal flange 2a of the long side wall 2 and the inner wall portion 1a1 of the long side bank portion 1a of the bottom portion 1. A state in which the folding container is assembled in a box shape at the substantially right corner formed by the plate portion 2b of the long side wall 2 and the lower end horizontal flange 2a in order to eliminate the substantially right angle corner formed by the horizontal flange 2a. In FIG. 5, an inclined surface S2 is formed which extends from the lower end of the inner surface 2b1 of the plate 2b of the long side wall 2 to the upper end of the draft surface 1a1 ′ of the long side bank 1a.

  As described above, the inclined surface portion S2 can be formed as a flat surface as shown in FIG. 1, or can be formed as a curved surface on the inner side of the folding container assembled in a box shape. . In addition, compared with the case where the inclined surface portion S2 is curved to make it flat, it suppresses a decrease in the thickness of the corner portion formed by the plate portion 2b of the long side wall 2 and the lower end horizontal flange 2a. Therefore, the strength and rigidity of the corner of this portion of the long side wall 2 can be maintained.

  Since the draft surface 1a1 'is formed on the long side bank portion 1a of the bottom portion 1, when the folding container is assembled into a box shape, the bottom portion 1 and the long side wall 2 that does not require such draft angle. In the folding container in which the stepped portion S1 having a substantially right angle corner formed by the lower end horizontal flange 2a of the long side wall 2 and the plate portion 2b is formed, the folding container is assembled in a box shape In FIG. 5, an inclined surface S2 is formed which extends from the lower end of the inner surface 2b1 of the plate 2b of the long side wall 2 to the upper end of the draft surface 1a1 ′ of the long side bank 1a.

  By configuring as described above, the article housed in the folding container assembled in a box shape can be taken out without being caught by the stepped portion S1 while being guided by the inclined surface portion S2, and therefore, the removal of the article can be performed. The work can be performed smoothly, and the workability of the work for taking out the article is improved.

  In addition, since the inclined surface portion S2 as described above is formed, the problem that the internal capacity of the folding container is reduced and the strength and rigidity of the long side wall 2 and the short side wall 3 are reduced. .

  Furthermore, compared with the case where the inclined surface portion S2 is curved and is made flat, a reduction in the thickness of the corner portion formed by the plate portion 2b of the long side wall 2 and the lower end horizontal flange 2a is suppressed. Therefore, the strength and rigidity of the corner of this portion of the long side wall 2 can be maintained.

H1 ... Female hinge member H2 ... Male hinge member S1 ... Stepped part S2 ...・ ・ ・ ・ ・ ・ Inclined surface 1 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Bottom 1a ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Long side bank 1b ・ ・ ・ ・ ・ ・ ・ ・・ Short side bank part 2 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Long side wall 3 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Short side wall

Claims (1)

Since the draft surface is formed on the bank portion 1a at the bottom, when the folding container is assembled in a box shape, the lower end of the side wall is horizontally placed between the bottom and the side wall that does not require such draft. In a folding container in which a step portion having a substantially right angle corner formed by a flange and a plate portion is formed, in a state where the folding container is assembled in a box shape, from the lower end portion of the inner surface of the side wall plate portion to the bank portion A folding container characterized in that an inclined surface portion reaching the upper end portion of the draft angle surface is formed.

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