JP3929563B2 - Rectangular container for transportation - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
According to the present invention, when stacked rectangular containers for transportation (hereinafter, also simply referred to as “containers”), a substantially lower half of an upper container is fitted into a lower container. The present invention relates to a rectangular container for transportation which is capable of nesting and stacking, such as a so-called stacking, in which a container positioned above is placed on a container positioned below.
[0002]
[Prior art]
When an upper container and a lower container are stacked in the same direction, a support leg protruding from the side wall of the upper container is formed at the opening edge of the lower container. Mounted on the flange, so-called stacking, and stacking so that the upper container is rotated 180 degrees from the stacking state so that the upper container and the lower container are in opposite directions In such a case, the support leg projectingly provided on the side wall of the container located above is inserted into a pocket having a depth approximately half that of the container formed on the container located below, and located above. A rectangular container for transportation is known in which approximately the lower half of the container is fitted into a container located below, so called nesting, stacking in the same direction and nesting in the opposite direction. In such a container, when the outer dimensions of the container are fixed, the flange width is narrowed to increase the volume in the container in which the article is stored so that more articles can be stored. Has been done.
[0003]
[Problems to be solved by the invention]
The problem to be solved by the present invention will be described with reference to FIG. 7 which is a side sectional view showing a state where a conventional container is stacked.
[0004]
As described above, when the outer dimension L of the container B ′ is determined, the width of the flange f ′ is reduced so that more articles can be stored, and the inner volume of the container in which the articles are stored is increased. When stacking, the depth dimension d (hereinafter referred to as the flange of the lower container) of the support leg c ′ portion of the upper container B ′, which is placed on the flange f ′ of the lower container B ′. The dimension in the width direction of the flange of the supporting leg portion of the container located on the upper side is simply referred to as “the mounting depth dimension of the supporting leg portion”), and the container B ′ is stacked in multiple stages. There was a problem that the container B ′ was damaged because the stability at the time deteriorated or the strength of the flange f ′ was not sufficient.
[0005]
An object of the present invention is to solve the problems of the conventional transport rectangular container as described above.
[0006]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention, when stacking, a support leg formed on a transporting rectangular container positioned above is placed on a flange of a transporting rectangular container positioned below, Further, in the nesting, the support leg portion formed on the transporting rectangular container located on the upper side is fitted in the pocket portion formed on the transporting rectangular container located on the lower side. In the rectangular container for transporting that can be stacked and nested in the opposite direction, first, when stacking, the flange portion on which the upper support leg is placed is extended to the inside of the rectangular container for transportation. to, to form the upper surface and flush flange extension of the flange, on the outer surface of the side wall of the lower pocket, during nesting, in which the flange extension formed a possible insertion recess Second, the lower side wall of the pocket is recessed from the outer surface toward the inside of the container to form a recess as a relief, and third, the lower side wall of the pocket is hollowed out. And a hole as a relief.
[0007]
Various examples of the present invention will be described below, but the present invention is not limited to these examples unless it exceeds the gist of the present invention.
[0008]
【Example】
As shown in FIG. 1, the transport rectangular container B capable of stacking in the same direction and nesting in the opposite direction as shown in FIG. 1 is inclined outward from the periphery of the bottom 1 and the bottom 1 toward the opening edge 2. A flange 5 extending in the horizontal direction is formed around the opening edge 2.
[0009]
S1 is a wide support leg c1 formed on the outer wall surface of the side wall, and a narrow pocket part formed on the inner wall surface closer to the center of the side wall than the support leg part c1 and having a depth approximately half that of the container B. The first support leg / pocket portion S1 is formed near the both end portions of one long side wall 3 of the opposing long side wall 3. S2 is a narrow support leg c2 formed on the outer wall surface of the side wall, and a wide pocket formed on the inner wall surface near the end of the side wall from the support leg part c2 and having a depth approximately half that of the container B. The second support leg / pocket portion S2 is formed in the vicinity of both end portions of the other long side wall 3 of the opposite long side wall 3. And the 1st support leg and pocket part S1 arrange | positioned near the both ends of one long side wall 3, and the 2nd support leg and pocket part S2 arrange | positioned near the both ends of the other long side wall 3 are: They are arranged symmetrically across the center line of the container B along the short side wall 4.
[0010]
As shown in FIG. 2, when the two containers B having the above-described structure are arranged up and down in the same direction, the support legs c1 and c2 of the container B positioned above are placed downward. In order to be placed on the flange 5 of the container B positioned, the container B positioned above is stacked on the container B positioned below.
[0011]
Further, when the container B positioned above is rotated 180 degrees from the state shown in FIG. 2, and the container B positioned below is disposed in the opposite direction as shown in FIG. The wide support leg c1 of the first support leg / pocket part S1 of the container B positioned on the upper side is fitted into the wide pocket part p2 of the second support leg / pocket part S2 of the container Bb positioned below, Further, the narrow support leg c2 of the second support leg / pocket part S2 of the container B positioned at the upper side is fitted into the narrow pocket part p1 of the first support leg / pocket part S1 of the container B positioned at the lower side. Thus, the substantially lower half of the upper container B is inserted into the lower container B and is nested.
[0012]
In the present invention, at the time of stacking, the width of the flange 5 of the container B positioned below the portion where the support legs c1 and c2 of the container B positioned above are placed is extended to the inside of the container B. It is. Details of this configuration will be described with reference to FIGS. Since this configuration is common to the first support leg / pocket part S1 and the second support leg / pocket part S2, in the following description, the support leg part is simply denoted by reference numeral c, and the pocket part Is simply represented by the symbol p. Further, since the first support leg / pocket part S1 and the second support leg / pocket part S2 can be provided on either the long side wall 3 or the short side wall 4, and on both the long side wall 3 and the short side wall 4, The long side wall 3 or the short side wall 4 is simply referred to as a side wall, and reference numeral 3 is used.
[0013]
At the time of stacking, as shown in FIG. 2, the containers B are stacked so that the support legs c are continuous in the vertical direction. Accordingly, the support leg c of the container B positioned above is placed on the flange 5 positioned above the support leg c of the container B positioned below. Therefore, in order to increase the mounting depth dimension d of the support leg c of this part, the flange 5 part on which the support leg c of the container B positioned above is extended to the inside of the container B, and the flange An extension E is formed. The upper surface of the flange extension E is naturally formed flush with the upper surface of the flange 5. The flange extension E can be formed by a plate-like body extending flush with the upper surface of the flange 5, but in order to increase the strength of the flange extension E, the shape of the side surface e1 becomes thinner as it goes downward. It is preferable to form. The flange extension E is formed so as to protrude from the inner surface 3 a of the container B integrally with the side wall 3 of the container B.
[0014]
As described above, by extending the flange 5 portion located above the support leg c to the inside of the container B to form the flange extension E, as shown in FIG. Since the mounting depth dimension d of the support leg c of the upper container B mounted on the flange 5 of the lower container B can be increased, the stability when stacking the containers B in multiple stages is improved. In addition to the improvement, since the flange extension E is provided, the strength of the flange 5 is increased, and the problem that the container B is damaged during stacking can be solved.
[0015]
When the flange extension E is formed as described above, the flange extension E projecting from the inner surface of the container B positioned below during nesting is a side wall positioned below the pocket p of the container B positioned above. 3 can not be nested. Therefore, a relief of the flange extension E is provided on the side wall 3 below the pocket p of the container B.
[0016]
As an example of the above-described relief, the concave portion D into which the flange extension E can be inserted is formed by denting the side wall 3 below the pocket p from the outer surface 3b side toward the inside of the container B during nesting. ing. In the present embodiment, the shape of the side surface e1 of the flange extension E is formed in a wedge shape that becomes thinner as it goes downward, so that the space portion of the recess D also corresponds to the wedge shape of the flange extension E, It is formed in a wedge shape whose depth gradually decreases as it goes downward.
[0017]
In the above-described embodiment, the concave portion D into which the flange extension E can be inserted is provided in the side wall 3 below the pocket p so that the flange extension E does not contact the side wall 3 below the pocket p during nesting. Is formed by denting from the outer surface 3b side toward the inside of the container B. However, when nesting, the side wall 3 below the pocket p with which the flange extension E abuts is cut out to escape. It is also possible to drill a hole. By forming such a hole, the flange 5 is extended to the inside of the container B for a longer time without being limited to the depth of the recess D, and a longer flange is formed in the inner direction of the container B. An extension E can be formed. Therefore, when stacking, the placement depth dimension d of the support leg c of the upper container B placed on the flange 5 of the lower container B can be increased, so that the container B can be multi-staged. The stability when stacking is further improved, and the strength of the flange 5 for providing the flange extension E is further increased.
[0018]
As a relief of the flange extension E formed on the side wall 3 below the pocket p of the container B, instead of drilling a hole, the side wall 3 below the pocket p is recessed from the outer surface 3b side toward the inside of the container B. By forming the concave portion D, the strength and rigidity of the container B are increased, and damage due to buckling of the container B when stacking in multiple stages can be prevented.
[0019]
The arrangement of the first support leg / pocket part S1 and the second support leg / pocket part S2 arranged on the opposed long side walls 3 of the container B of the above-described embodiment is a range in which stacking in the same direction and nesting in the opposite direction are possible. However, the present invention is not limited to the above-described embodiment. Since the arrangement of the first support leg / pocket part S1 and the second support leg / pocket part S2 is known before the present application in Japanese Utility Model Publication No. 6-2892 and Japanese Utility Model Application Publication No. 6-35943, it is described in detail. Description is omitted.
[0020]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0021]
Since the flange portion located above the support leg is extended to the inside of the container to form a flange extension, the support leg of the container located above is placed on the flange of the lower container when stacking. Therefore, the stability when the container is stacked in multiple stages is improved, and the strength of the container is increased because the flange extension is provided. In addition, nesting is possible because a relief is formed in the side wall below the pocket of the container so that the flange extension does not come into contact therewith.
[0022]
By recessing the lower side wall of the pocket from the outer surface side toward the inside of the container, forming a recess as a relief increases the strength and rigidity of the container, and buckles the container when stacking in multiple stages. Can prevent damage.
[0023]
Since the hole as a relief has been drilled, the flange portion can be extended longer to the inside of the container to form a longer flange extension in the inner direction of the container, and therefore lower when stacking. The mounting depth of the upper support legs mounted on the flange of the container can be increased, so that the stability when stacking the containers in multiple stages is further improved, and the flange extension The strength of the container for providing the portion is further increased.
[Brief description of the drawings]
FIG. 1 is a perspective view of a rectangular container for transportation according to the present invention.
FIG. 2 is a front view showing a state in which rectangular containers for transportation according to the present invention are stacked.
FIG. 3 is a front view showing a state where a rectangular container for transportation of the present invention is nested.
FIG. 4 is a perspective view of a main part of a rectangular container for transportation according to the present invention as viewed from the inside.
FIG. 4 is a perspective view of a main part of a rectangular container for transportation according to the present invention as viewed from the outside.
FIG. 6 is a side sectional view showing a state in which the rectangular transport containers of the present invention are stacked.
FIG. 7 is a side sectional view showing a state in which a conventional rectangular container for transportation is stacked.
[Explanation of symbols]
B ... Rectangle container for transport D ... Escape (recess)
E ... Flange extension 1 ... Bottom 2 ... Open edge 3 ... Long side wall 4 ... ... Short side wall 5 ... ・ ・ ・ ・ ・ Flange

Claims (3)

When stacking, the support legs formed on the upper rectangular container for transportation are placed on the flange of the lower rectangular container for transportation, and when nesting, the upper leg is transported. A transport rectangle that can be stacked in the same direction and nested in the opposite direction, so that the support leg formed in the rectangular container can be fitted into the pocket formed in the transport rectangular container located below In the container, when stacking, the flange portion on which the upper support leg portion is placed is extended to the inside of the rectangular container for transportation to form a flange extension portion flush with the upper surface of the flange. A rectangular container for transportation, wherein a concave portion into which the flange extension portion can be inserted during nesting is formed on the outer surface of the side wall below the pocket . The rectangular container for transport according to claim 1, wherein a concave part into which a flange extension part can be inserted is formed by denting a side wall below the pocket from the outer surface side toward the inside of the container. The rectangular container for transportation according to claim 1, wherein a hole into which a flange extension portion can be inserted is formed by hollowing out a side wall below the pocket.

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