JPH0352664Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a transportation box used for transporting bread, etc., and aims to prevent objects inside the transportation box from spilling out to the outside.

There is a transport box used for transporting bread, etc., as shown in Japanese Patent Publication No. 47-23753, which has a rectangular bottom wall and a box that stands up from the edge of each long side of the bottom wall. The structure is formed into an upwardly opening shape consisting of a pair of long side walls and a pair of short side walls erected from the edges of each short side of the bottom wall, and is stackable. It is possible to select between the same type stacking type in which the longitudinal directions of adjacent transport boxes are the same, and the orthogonal type stacking type in which the longitudinal directions of vertically adjacent transport boxes are orthogonal. A recessed portion is formed between the upper sides of both ends in the direction, and is recessed downward, and into which both ends in the longitudinal direction of the transport boxes adjacent on the upper side are inserted when stacking in the orthogonal stacking type. A plurality of protrusions protruding upward and located in the recessed portion are disposed in the longitudinal direction on the lower inner peripheral edge, and the protrusions are disposed on both ends of the bottom wall in the longitudinal direction when stacked using the orthogonal stacking method. A plurality of insertion holes are arranged in the width direction.

The above-mentioned transport boxes have the advantage that if there is no transport box inside, they can be stacked compactly by stacking them in an orthogonal stacking format.

However, in the above-mentioned conventional transport box, the width of the protruding pieces is very narrow, and there are no protruding pieces between adjacent protruding pieces and between the protruding pieces and the lateral inner peripheral edge of the recessed part when viewed from the front. There was a gap much larger than that, so
There was a problem in that objects to be transported, such as bread, inside the transport box were very likely to spill out from the above-mentioned gap.

The present invention has solved the above problem, and its features include a rectangular bottom wall 2 and a pair of long side walls erected from the edges of each long side of the bottom wall 2. 3 and a pair of short side walls 4 erected from the edges of each short side of the bottom wall 2, the transport box is formed in an upwardly opening shape and is stackable, and is of a stacking type. In the transport boxes that can be selected between the same stacking type in which the longitudinal directions of the vertically adjacent transport boxes 1 are the same, and the orthogonal stacking type in which the longitudinal directions of the vertically adjacent transport boxes 1 are orthogonal, Between the upper sides of both longitudinal ends of each long side wall 3,
A recessed portion 15 is formed which is recessed downward and into which both ends in the longitudinal direction of adjacent transportation boxes on the upper side are fitted when stacked in the orthogonal stacking type, and the inner peripheral edge of the recessed portion 15 in the transportation box 1 is formed. Ribs 11, 16, 18, 1 projecting outwardly at the upper end edge including
9 is formed over the entire length, and a plurality of projecting pieces 22 are provided in the lower inner peripheral edge of the recessed part 15 in the longitudinal direction, protruding upward, located inside the recessed part 15, and serving as blind plates. However, the gap between adjacent protrusions 22 and the protrusions 22
The gap between the lateral inner peripheral edge of the recessed portion 15 is made smaller than that of the protruding piece 22 in front view, and each protruding piece 22
At the outer peripheral edge of the recessed part 15, a projecting piece rib 23 is provided, which is connected to the rib 18 on the lower inner peripheral edge of the recessed part 15, surrounds the projecting piece 22 together with the rib 18, and projects outwardly. The projecting piece ribs 23 are formed so that the amount of outward protrusion becomes gradually smaller toward the upper end, and each projecting piece rib 23 is formed on both side edges of the projecting piece 22. A pair of side parts 24 and a protruding piece 2
It consists of an upper side part 25 formed at the upper end part of 2,
The projecting piece 22 extends from each side portion 24 toward the upper end.
The projecting piece 22 and projecting piece rib 23 of the transport box 1 adjacent to the bottom can be freely inserted and removed at both longitudinal ends of the bottom wall 2 when stacked in the orthogonal stacking format. The point is that a plurality of insertion holes 6 are arranged in the width direction.

Hereinafter, a first embodiment of the present invention will be described based on the drawings of FIGS. 1 to 8. Reference numeral 1 denotes a transport box, which is made of resin such as polypropylene and is manufactured by injection molding.

The transport box 1 includes a rectangular bottom wall 2, a pair of long side walls 3 that stand upright from the long side edge of the bottom wall 2, and a short side edge of the bottom wall 2. It is formed into an upwardly opening shape consisting of a pair of short side walls 4 that stand upright from the top and is stackable, and as a stacking type, as shown in FIGS. 1 and 2, An identical stacking type in which the longitudinal directions of adjacent transport boxes 1 are the same, and an orthogonal stacking type in which the longitudinal directions of vertically adjacent transport boxes 1 are orthogonal, as shown in Figures 3 to 7. are selectable.

At the outer periphery of both ends in the longitudinal direction of the lower surface of the bottom wall 2, there are formed fitting frames 5 which protrude downward and are square-shaped when viewed from the bottom and are also used as grounding bars. 5 is removably inserted into the opening of the transport box 1 adjacent to the lower side through a small gap. In addition, three insertion holes 6 are provided in the portions of the bottom wall 2 that are surrounded by the fitting frame 5 at both ends in the longitudinal direction.
are formed at equal intervals in the width direction of the transport box 1. The insertion hole 6 has a rectangular shape whose longitudinal direction is the width direction of the transport box 1, and an insertion hole surrounding frame 7 that protrudes downward and doubles as a grounding bar extends around the entire circumference at the opening edge. It is formed. The longitudinal center portion of the outer long side of the surrounding frame 7 and the portion of the fitting frame 5 facing the long side are connected by a guide bar 8 which is orthogonal thereto and also serves as a grounding bar. bottom wall 2
Each fitting frame 5 and each surrounding frame 7 at each end in the longitudinal direction of the
A through hole 10 is formed between each of the grounding bars 9 in the portions of the grounding bars 9 except for both ends in the longitudinal direction of the transport box 1. Note that the bottom wall 2 may be configured in the form of a blind plate without providing any through holes.

At the upper end edge of each short side wall 4, an upper horizontal rib 11 that protrudes outward is formed over the entire length.
Further, lower horizontal ribs 12 projecting outward are formed at both ends of the lower end edge of each short side wall 4, and the inner end of each lower horizontal rib 12 and each end of the upper horizontal rib are
They are connected by vertical ribs 13 that are slightly inclined. The upper portions of both vertical ribs are connected by a handle 14.

A recessed portion 15 is recessed downward between the upper sides of both ends of each long side wall 3 in the longitudinal direction, and has an inverted trapezoid shape when viewed from the front.
In the recessed portion 15, both ends in the longitudinal direction of the transport boxes 1 adjacent on the upper side are fitted when stacking in the orthogonal stacking type. Upper and lower horizontal ribs 16 and 1 protrude outward at the upper and lower edges of both ends in the longitudinal direction of each long side wall 3, respectively.
7 are respectively formed and are continuous with the upper and lower horizontal ribs 11 and 12 of each short side wall 4, and when stacked by the same type stacking type, the upper horizontal ribs 11 and 16
, the lower horizontal rib 1 of the transport box 1 adjacent on the upper side
2 and 17 are placed. At the lower inner peripheral edge of the recessed portion 15, there is a midway horizontal rib 18 that protrudes outward.
is formed over the entire length, and when stacking in the orthogonal stacking type, the bottom wall 2 of the transport box 1 adjacent on the upper side is placed on the intermediate horizontal rib 18. Furthermore, upper vertical ribs 19 that connect each end of the midway horizontal rib 18 and each upper horizontal rib 16 are provided on the inner peripheral edge of each side of the recessed portion 15 to protrude outward. The upper vertical rib 19 prevents the transport boxes 1 adjacent on the upper side from moving more than a predetermined width in the width direction during stacking in the orthogonal stacking type. Further, the upper vertical rib 19 has an inclined shape that approaches each of the corresponding short side walls 4 as it goes toward the upper end, making it easy to insert the transport box 1 into the recessed portion 15. It is like that. At each end of the intermediate horizontal rib 18, an extended horizontal rib 20 protruding outward is longitudinally connected, and the outer end of each extended horizontal rib 20 and the end of each lower horizontal rib 17 are connected to each other in the longitudinal direction. It is connected by a lower vertical rib 21 that protrudes outward. When stacking according to the orthogonal stacking method, the outer edge of each upper vertical rib 19 is connected to the upper side of the adjacent transport box 1.
They face each other with a gap inside each of the lower vertical ribs 21 . In addition, three trapezoidal protrusions 22 that protrude upward and are located within the recessed portion 15 are formed on the intermediate horizontal rib 18 at equal intervals in the longitudinal direction. The pieces 22 are removably inserted into the respective insertion holes 6 of the adjacent transport boxes 1 on the upper side. When stacking, each protrusion 22 is not inserted into each insertion hole 6, and each protrusion 22 is relatively shifted outward in the longitudinal direction of the transportation box 1 from each insertion hole 6 of the transportation box 1. However, by moving the transport box 1 in the longitudinal direction and sliding each guide bar 8 against the protruding pieces 22, each protruding piece 22 can be easily inserted into each insertion hole 6. The inner surface of each projecting piece 22 is a flat surface that is flush with the inner surface of each long side wall 3. or,
Each protruding piece 22 is made wide, and the gap between adjacent protruding pieces 22 and the gap between the protruding piece 22 and the upper vertical rib 19 are made smaller than the protruding piece 22 in a front view, thereby creating a recessed area. In a region P extending from the intermediate horizontal rib 18 to the upper end edge of the protruding piece 22 in the portion 15, the proportion occupied by the protruding piece 22 in front view is at least 1/2 or more. Therefore, objects to be transported, such as bread, inside the transport box 1 are less likely to spill out from the gaps between adjacent protrusions 22 and between the protrusions 22 and the upper vertical rib 19 than in the past. Further, on the outer peripheral edge of each protruding piece 22, a protruding piece rib 23 that protrudes outward is formed over the entire circumference, and the protruding piece rib 22 is continuous with the midway horizontal rib 18 at both ends,
The protruding piece 22 is surrounded by these ribs 18 and 22, which increases the strength of the protruding piece 22, and when it is inserted into the insertion hole 6 of the protruding piece 22,
Even if the protruding piece 22 comes into contact with the peripheral portion of the insertion hole 6, there is no possibility that the protruding piece 22 will be damaged. The protruding piece rib 23 consists of a pair of side parts 24 formed on each side edge of the protruding piece 22 and an upper side part 25 formed on the upper edge of the protruding piece 22. Each side part 24
is inclined toward the center of the protrusion 22 in the width direction toward the upper end, thereby facilitating insertion of the protrusion 22 into the insertion hole 6. Furthermore, the projecting piece rib 23
is formed such that the amount of outward protrusion gradually decreases toward the upper end. That is, the outer surface of the side end portion 24 has an inclined shape that moves inward toward the upper end, and the outer surface of the side end portion 24
The wall thickness is also the same as that of the upper end of each side portion 24, and each end of the upper side portion 25 is continuous with the upper end of each side portion 24 without any step. Even so, the projection piece 22 can be easily inserted into the insertion hole 6. Furthermore, when each protrusion 22 is inserted into the insertion hole 6, the distance m between the inner surface of each protrusion 22 and the inner long side opening edge of the insertion hole 6 is equal to the distance m between the outer surface of each protrusion 22 and the insertion hole. Gap n with the outside long side opening edge of 6
It is said to be smaller than In the illustrated example, when stacking by the orthogonal stacking type, the upper vertical rib 19
and the lower vertical rib 21 of the transport box 1 adjacent on the upper side.
The gap m between the inner surface of each protruding piece 22 and the inner long side opening edge of the insertion hole 6 is the same,
Due to the contact between the upper vertical rib 19 and the lower vertical rib 21 and the contact between the inner surface of each projecting piece 22 and the inner long side opening edge of the insertion hole 6, the transport box 1 adjacent to the upper side It is designed to prevent movement of more than a predetermined length in the longitudinal direction. In addition, both the above gaps, m
It is also possible to make one of the two sides larger and to prevent the transportation box 1 from moving in the longitudinal direction by abutting the one side.

As detailed above, according to the present invention, () the gap between the adjacent protruding pieces 22 and the protruding pieces 2;
2 and the lateral inner circumferential edge of the concave portion 15 is made smaller than the protruding piece 22 when viewed from the front. (a) Transported objects inside the transport box 1 are less likely to spill out from the gap than in the past.

(b) The strength of the long side wall 3 having a low height can be increased.

It has the following effects.

() The rib 18 is connected to the outer peripheral edge of each projecting piece 22 and is connected to the rib 18 on the lower inner peripheral edge of the recessed part 15.
(c) Both the ribs 18 and 23 allow the protruding piece 2 to be
The strength of 2 itself can be increased.

(d) By increasing the strength of the projecting piece 22, the strength of the long side wall 3 can be further increased.

It has the following effects.

() Not only are each side portion 24 of the protruding piece rib 23 sloped so that it approaches the widthwise center of the protruding piece 22 as it goes toward the upper end, but also the protruding piece rib 23
are formed so that the amount of outward protrusion decreases toward the upper end, so the protrusion 22 and the protrusion rib 23 can be inserted through the protrusion without reducing the thickness of the protrusion 22 in any way. It can be inserted into the hole 6 extremely easily. The present invention has the above advantages and is of great practical benefit.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is a perspective view of transport boxes stacked in the same type stacking type, Fig. 2 is a partial sectional front view of the same, and Fig. 3 is a transport box stacked in the orthogonal type stacking type. A perspective view of the box, FIG. 4 is a partially sectional front view of the box, FIG. 5 is a side view of the box, and FIG.
7 is a sectional view taken along the line B--B in FIG. 4, and FIG. 8 is a sectional view taken along the line C in FIG. 5. 1... Transport box, 2... Bottom wall, 3... Long side wall,
4...Short side wall, 6...Through hole, 11, 16, 1
8, 19...Rib, 15...Concave portion, 22...Protrusion piece, 23...Protrusion piece rib, 24...Side part, 25...
...upper part.

Claims (1)

[Claims for Utility Model Registration] A rectangular bottom wall 2, a pair of long side walls 3 erected from the edges of each long side of the bottom wall 2, and a pair of long side walls 3 on each short side of the bottom wall 2. A pair of short side walls 4 erected from the edge
A transport box formed with an upward opening and capable of being stacked, the stacking type includes a stacking type of the same type in which the longitudinal direction of the transport boxes 1 adjacent to the bottom are the same, and a transport box of the same type in which the longitudinal direction of the transport boxes 1 adjacent to the bottom are the same; In a transportation box in which it is possible to select an orthogonal stacking type in which the longitudinal direction of the boxes 1 is orthogonal, between the upper sides of both longitudinal ends of each long side wall 3,
A recessed portion 15 is formed which is recessed downward and into which both ends in the longitudinal direction of adjacent transportation boxes on the upper side are fitted when stacked in the orthogonal stacking type, and the inner peripheral edge of the recessed portion 15 in the transportation box 1 is formed. Ribs 11, 16, 18, 1 projecting outwardly at the upper end edge including
9 is formed over the entire length, and a plurality of projecting pieces 22 are provided in the lower inner peripheral edge of the recessed part 15 in the longitudinal direction, protruding upward, located inside the recessed part 15, and serving as blind plates. However, the gap between adjacent protrusions 22 and the protrusions 22
The gap between the lateral inner peripheral edge of the recessed portion 15 is made smaller than that of the protruding piece 22 in front view, and each protruding piece 22
At the outer peripheral edge of the recessed part 15, a projecting piece rib 23 is provided, which is connected to the rib 18 on the lower inner peripheral edge of the recessed part 15, surrounds the projecting piece 22 together with the rib 18, and projects outwardly. The projecting piece ribs 23 are formed so that the amount of outward protrusion becomes gradually smaller toward the upper end, and each projecting piece rib 23 is formed on both side edges of the projecting piece 22. A pair of side parts 24 and a protruding piece 2
It consists of an upper side part 25 formed at the upper end part of 2,
The projecting piece 22 extends from each side portion 24 toward the upper end.
The projecting piece 22 and projecting piece rib 23 of the transport box 1 adjacent to the bottom can be freely inserted and removed at both longitudinal ends of the bottom wall 2 when stacked in the orthogonal stacking format. A transportation box characterized by having a plurality of insertion holes 6 arranged in the width direction.