JP2019099164A - Corrugated cardboard tray - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate lifting by holding a central portion of a side wall while preventing deviation in the width direction. SOLUTION: In a combined corrugated cardboard tray 100 according to the present invention, a concave portion 11 is formed at a lower end edge at a central portion of a side wall 2, and a convex portion 12 protruding from an upper end edge is formed at a central portion of the side wall 2. When a plurality of corrugated cardboard trays 100 are stacked in the height direction H, the recess 11 and the convex portion 12 are configured to loosely fit, and in the height direction H, the length h11 of the recess 11 is set. It is configured to be longer than the length h12 of the convex portion 12. [Selection diagram] Fig. 3

Description

  The present invention relates to a cardboard tray.

  Conventionally, a cardboard tray is known in which side walls and end walls are connected to each other around a bottom wall with a corner portion interposed therebetween (see, for example, Patent Document 1).

  It is known to provide handle holes in the side and end walls to lift such cardboard trays.

JP 2002-255149 A

  The corrugated cardboard tray as described above is assumed to be used with no lid and stacked in the height direction (vertical direction), similar to a thin wooden transport container called “stacked weight”. ing.

  Such a cardboard tray has a problem that the cardboard trays stacked vertically are easily shifted in the lateral direction (horizontal direction) because the cardboard tray is lighter in weight than the wooden stack.

  In particular, in such a cardboard tray, the length of the side wall is longer than the length of the end wall in the lateral direction, so the cardboard tray stacked vertically is the lateral direction of the side wall (longitudinal direction There is a problem that it is easier to shift in the lateral direction (width direction) of the end wall than).

  Moreover, in such a corrugated board tray, when the side wall length in the longitudinal direction is increased to a certain extent, it is necessary to lift by holding the central portion of the side wall.

  In this respect, in the cardboard tray described in Patent Document 1, although the handle hole is provided at the center of the end wall, it is not considered that the handle hole is provided at the center of the side wall.

  Therefore, the present invention has been made to solve the above-mentioned problems, and it is easy to lift the central portion of the side wall while preventing the end wall from being displaced in the lateral direction (width direction). To provide a cardboard tray that can

  A first feature of the present invention is a cardboard tray connecting a side wall and an end wall with a corner portion interposed around a bottom wall, wherein a recess is formed in the lower end edge at the central portion of the side wall, A convex portion protruding from the upper end edge is formed at the central portion of the side wall, and the concave portion and the convex portion are loosely fitted when the plurality of cardboard trays are stacked in the height direction. A gist is that in the height direction, the length of the recess is configured to be longer than the length of the protrusion.

  According to the present invention, it is possible to provide a corrugated board tray capable of facilitating lifting by holding the central portion of the side wall while preventing the end wall from being displaced in the lateral direction (width direction).

FIG. 1 is a view showing an example of a process of stacking the cardboard tray 100 according to the first embodiment. FIG. 2 is an enlarged view of a portion A in FIG. FIG. 3 is a development view of the cardboard tray 100 according to the first embodiment. FIG. 4 is a view showing an example of a state in which the concave portion and the convex portion are loosely fitted in a state in which the cardboard tray 100 according to the first embodiment is stacked. FIG. 5 is a view showing an example of the process of stacking the cardboard tray 100 according to the second embodiment. FIG. 6 is an enlarged view of part A in FIG. FIG. 7 is a development view of the cardboard tray 100 according to the second embodiment. FIG. 8 is a view showing an example of a process of stacking the cardboard tray 100 according to the third embodiment. FIG. 9 is an enlarged view of part A in FIG. FIG. 10 is a development view of the corrugated board tray 100 according to the third embodiment.

  Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, the detailed description may be omitted if necessary. For example, detailed description of already well-known matters and redundant description of substantially the same configuration may be omitted. This is to avoid unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art.

  It is noted that the inventors provide the attached drawings and the following description so that those skilled in the art can fully understand the present disclosure, and intend to limit the claimed subject matter by these. Absent.

First Embodiment
Hereinafter, a cardboard tray 100 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a view showing an example of a process of stacking cardboard trays 100 according to the first embodiment, FIG. 2 is an enlarged view of a portion A in FIG. 1, and FIG. 3 is a first embodiment FIG. 4 is a development view of a corrugated board tray 100 according to the embodiment, and FIG. 4 shows an example of a state in which concave portions and convex portions are loosely fitted when the corrugated board tray 100 according to the first embodiment is stacked. FIG.

  As shown in FIG. 1, the cardboard tray 100 according to the present embodiment is configured to connect the side wall 2 and the end wall 3 with the corner portion C interposed around the bottom wall 1.

  In addition, as shown in FIG. 1, it is assumed that the corrugated-cardboard tray 100 which concerns on this embodiment is accumulated and used for height direction (vertical direction) H. As shown in FIG. Here, the insole board 101 may be inserted between the corrugated board trays 100 stacked one on top of the other as shown in FIG.

  In addition, as shown in FIG. 1, in the cardboard tray 100 according to the present embodiment, the recess 11 is formed at the lower end edge at the central portion of the side wall 2, and the projecting portion protrudes from the upper end edge at the central portion of the side wall 2 Twelve are formed.

  Here, in the cardboard tray 100 according to the present embodiment, when the plurality of cardboard trays 100 are stacked in the height direction H, the concave portion 11 and the convex portion 12 are loosely fitted.

  Further, as shown in FIG. 3, in the cardboard tray 100 according to the present embodiment, the length h11 of the recess 11 in the height direction H is configured to be longer than the length h12 of the protrusion 12 There is.

  According to this configuration, as shown in FIG. 4, when the plurality of cardboard trays 100 are stacked in the height direction H, the concave portion 11 of the upper cardboard tray 100 and the convex portion of the lower cardboard tray 100 are formed. Since there is a space S between the space 12 and 12, the carrier can easily lift the upper cardboard tray 100 by putting the hand in the space S.

  Further, according to the configuration, when the plurality of cardboard trays 100 are stacked in the height direction H, the convex portions 12 of the lower cardboard tray 100 are inserted into the recesses 11 of the upper cardboard tray 100, Since the recess 11 of the upper cardboard tray 100 and the convex portion 12 of the lower cardboard tray 100 are loosely fitted, the width direction of the upper cardboard tray 100 (the lateral direction of the end wall 3) ) W can be prevented from shifting.

  Furthermore, according to this configuration, the combination of the concave portion 11 of the upper cardboard tray 100 and the convex portion 12 of the lower cardboard tray 100 prevents the displacement of the upper cardboard tray 100 with respect to the width direction W. It becomes possible to facilitate holding the central portion of the side wall 2 and lifting it. As a result, since it becomes unnecessary to form an unnecessary hole in the side wall 2, it also becomes possible to prevent the strength of the side wall 2 from being reduced.

  As shown in FIG. 3, in the cardboard tray 100 according to the present embodiment, the side wall 2 is composed of an outer side plate 4, a top side plate 5 and an inner side plate 6 sequentially connected to the bottom wall 1. That is, the side wall 2 is configured to have a double structure.

  Further, as shown in FIG. 3, in the cardboard tray 100 according to the present embodiment, the end wall 3 is from the end wall plate 7 connected to the bottom wall 1, and the side edges of the outer side plate 4 and the inner side plate 5. It is constituted by extending folding pieces 8 and 9. That is, the end wall 3 is configured to have a triple structure.

  As shown in FIG. 3, in the cardboard tray 100 according to the present embodiment, the recess 11 may be constituted by a side wall hole 11 a formed in an end edge on the bottom wall 1 side in the central portion of the outer side plate 4. .

  Further, as shown in FIG. 3, in the cardboard tray 100 according to the present embodiment, the convex portion 12 may be formed so as to project from an edge on the top plate 5 side in the central portion of the outer side plate 4.

  According to this configuration, since the side wall 2 can be made to have a double structure and the end wall 3 can be made to have a triple structure, the strength of the corrugated board tray 100 can be efficiently improved.

  As shown in FIG. 3, in the cardboard tray 100 according to the present embodiment, an oval shaped handle hole 32a is provided at the central portion of the end wall plate 7 in the longitudinal direction (lateral direction of the side wall 2) L and the width direction W. It is done. The shape of the handle hole 32a is not limited to the elliptical shape, and may be any shape.

  Here, as shown in FIG. 1 and FIG. 2, in the state where the corrugated board tray 100 according to the present embodiment is assembled, the folding piece 8 is positioned at the back of the handle hole 32 a. Therefore, according to such a configuration, it is possible to prevent a situation in which a product or the like placed in the cardboard tray 100 according to the present embodiment is exposed to the outside through the handle hole 32a.

  As shown in FIG. 3, in the cardboard tray 100 according to the present embodiment, the convex portion 31 may be formed to project from the upper end edge (end edge in the longitudinal direction L) of the end wall plate 7.

  According to this configuration, when the plurality of cardboard trays 100 are stacked in the height direction H, the convex portion 31 of the lower cardboard tray 100 shifts the upper cardboard tray 100 in the longitudinal direction L. It can be prevented.

  Hereinafter, with reference to FIG. 3, an example of the operation | movement which assembles the combination corrugated-cardboard tray 100 which concerns on this embodiment is demonstrated.

  First, the inner side plate 6 is bent inward and erected with the outer side plate 4 and the insertion piece 41 connected to the upper end edge (the end edge in the width direction W) of the inner side plate 6 in the width direction of the bottom wall 1 A plug-in piece 51 inserted into the plug-in hole 42 provided at the end edge of W, and bent inward the folding pieces 8 and 9 and connected to the upper end edge (the end edge in the width direction W) of the folding piece 9 Is inserted into the insertion hole 52 provided at the end edge of the bottom wall 1 in the longitudinal direction L.

  Second, the end wall plate 7 is erected, and the crosspiece 21 connected to the upper end edge (end edge in the longitudinal direction L) of the endwall 7 is bent inward, and the side edge of the crosspiece 21 (width direction W An insertion piece 22 extending from the end edge of the upper plate 5 is inserted into an insertion hole 23 formed in the top plate 5.

  According to this configuration, when the plurality of cardboard trays 100 are stacked in the height direction H by the crosspieces 21, the strength of the cardboard tray 100 is increased while stably placing the upper cardboard tray 100. It can be improved.

Second Embodiment
Hereinafter, with reference to FIGS. 5 to 7, the cardboard tray 100 according to the second embodiment of the present invention will be described focusing on differences from the cardboard tray 100 according to the first embodiment described above. Do.

  As shown in FIGS. 5 to 7, in the cardboard tray 100 according to the present embodiment, a handle hole 32 b is provided at an end edge on the bottom wall 1 side in the central portion of the end wall plate 7. The shape of the handle hole 32b may be any shape.

Third Embodiment
Hereinafter, with reference to FIGS. 8 to 10, the cardboard tray 100 according to the third embodiment of the present invention will be described focusing on differences from the cardboard tray 100 according to the first embodiment described above. Do.

  As shown in FIGS. 8 to 10, in the corrugated paperboard tray 100 according to the present embodiment, an oval shaped handle hole is formed in the central portion of the end wall plate 7 in the longitudinal direction (lateral direction of the side wall 2) L and the width direction W. 32c is provided. The shape of the handle hole 32c is not limited to an elliptical shape, and may be any shape.

  Here, as shown in FIGS. 8 to 10, in the cardboard tray 100 according to the present embodiment, the handle holes 32c are formed by the ruled lines 32d and the notches 32e. Here, the ruled lines 32 make it possible to bend the corrugated cardboard pieces 32f provided with the notches 32e in the inward direction.

(Other embodiments)
As mentioned above, although the present invention was explained by the above-mentioned embodiment, it should not be understood that the statement and drawing which make a part of the disclosure in such an embodiment limit the present invention. From this disclosure, various alternative embodiments, examples and operation techniques will be apparent to those skilled in the art.

100: Corrugated cardboard tray 1: Bottom wall 2: Side wall 3: End wall 4: Outer plate 5: Top plate 6: Inner plate 7: End wall plate 8, 9: Folded piece 11: Recess 11a: Side wall hole 12, 31: Convex Section 21: Crosspieces 22, 41, 51: Insertion pieces 23, 42, 52: Insertion holes 32a, 32b, 32c: Handle holes 32d: Ruled lines 32e: Notches 32f: Corrugated piece 101: Insole plate C: Corner portion H ... height direction L ... longitudinal direction W ... width direction

Claims (3)

A corrugated board tray connecting a side wall and an end wall across a corner portion around a bottom wall, comprising:
A recess is formed at the lower end edge at the central portion of the side wall,
A convex portion protruding from the upper end edge is formed at a central portion of the side wall,
When the plurality of cardboard trays are stacked in the height direction, the recess and the protrusion are loosely fitted.
In the height direction, the length of the concave portion is configured to be longer than the length of the convex portion. The side wall is composed of an outer side plate, a top side plate and an inner side plate which are sequentially connected to the bottom wall,
The end wall is constituted by an end wall plate connected to the bottom wall and a folded piece extending from each side end of the outer plate and the inner plate;
The recess is constituted by a side wall hole formed at the edge on the bottom wall side in the central portion of the outer side plate,
The corrugated board tray according to claim 1, wherein the convex portion is formed to project from an edge on the top plate side in a central portion of the outer side plate.   The crosspiece plate connected to the upper end edge of the end wall plate is bent inward, and the insertion piece extending from the side edge of the crosspiece plate is inserted into the insertion hole formed in the top plate. A cardboard tray according to claim 2, characterized in that.

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