JP2019131268A - Storage box - Google Patents

Abstract

To provide a storage box which has a simple structure, does not impair easiness of assembly, prevents transformation of a bottom piece, prevents a storage object from falling by opening of a bottom (bottom opening), and can improve load resistance.SOLUTION: A second bottom piece 120 and a fourth bottom piece 140 have flap portions 123, 143 which protrude to the side of a third bottom piece 130 compared with a virtual straight line toward end portions of the side of a third side face 103 of bending lines 121, 141 of a second side face 102 and a fourth side face 104 from end portions of an insertion portion 150. And/or a first bottom piece 110 has flap portions 113 which protrude to the sides of the second side face 102 and the fourth side face 104 compared with the virtual straight line toward end portions of the sides of the second side face 102 and the fourth side face 104 of a bending line 111 of a first side face 101 from both ends of the insertion portion 150.SELECTED DRAWING: Figure 1

Description

  The present invention provides a first bottom piece to a fourth bottom piece, which are provided from a first side face to a fourth side face forming a side wall and a folding line from each of the first side face to the fourth side face and bent to form a bottom face. It is related with the storage box which has.

Conventionally, as a storage box, as shown in the development view of FIG. 4, a first side surface 501, a second side surface 502, a third side surface 503, a fourth side surface 504, a first side surface 501, and a second side surface are formed. 502, a first bottom piece 510, a second bottom piece 520, and a third bottom piece that are provided from the third side surface 503 and the fourth side surface 504 via folding lines 511, 521, 531, and 541, respectively, and are bent to form a bottom surface. One having 530 and a fourth bottom piece 540 is known.
In the known storage box, after the first side surface 501, the second side surface 502, the third side surface 503, and the fourth side surface 504 are assembled into a rectangular tube shape, first, as shown in FIG. Is folded at the folding line 531, and the second bottom piece 520 and the fourth bottom piece 540 are folded at the folding lines 521 and 541 so as to overlap with each other, and the insertion of the second bottom piece 520 and the fourth bottom piece 540 is locked. The protrusions 522 and 542 are inserted and locked into the bottom portion of the insertion portion forming recess 532 of the third bottom piece 530, so that the insertion portion 550 having the width of the bottom portion of the insertion portion forming recess 532 is formed.
Furthermore, as shown in FIG. 6, the first bottom piece 510 is bent along a folding line 511, and the insertion piece 512 on the distal end side is inserted into the insertion portion 550 at the bottom of the insertion portion forming recess 532, so that the bottom surface is It is formed.

Japanese Utility Model Publication No. 3-43414

This known storage box can form a bottom surface with simple assembly and can withstand a load of a certain amount of storage. However, when the storage box is lifted in a state of storing a weight exceeding an allowable amount, The piece 510, the second bottom piece 520, the third bottom piece 530, and the fourth bottom piece 540 are deformed downward, and the insertion piece 512 comes out of the insertion portion 550, and the insertion portion forming locking projections 522 and 542 are inserted. There is a possibility that the engagement with the bottom of the part forming recess 532 is released, the bottom surface is opened (so-called bottom drop), and the stored item falls.
In order to deal with such a problem and increase the load resistance, for example, as in Patent Document 1, the insertion piece (insertion piece 17) has a protruding portion (21 which is wider than the deepest portion of the insertion portion (insertion opening 9)). ) And a cut portion (23) through which the protruding portion (21) can pass is provided in front of the deepest portion of the insertion portion (insertion opening 9).

However, with this known one, although the load resistance is improved to some extent, the force for opening the bottom (bottom-out) is concentrated on the engaging portion of the protruding portion (21). There was a risk that the contents would fall due to breakage or deformation, and the bottom surface opened (bottomed out).
In addition, the first bottom piece, the second bottom piece, the third bottom piece, and the fourth bottom piece (bottom pieces 11, 13, 19, and 15) may be lowered to some extent due to bending or extending of the material, play of the engaging portion, and the like. Deformation is inevitable, and with the vibration during lifting and movement of the contents, the protrusion (21) moves and passes through the notch (23), suddenly the bottom opens (bottom). There was a risk that the contents would fall.

  Therefore, the present invention has a simple configuration, prevents deformation of the bottom piece without impairing ease of assembly, prevents the bottom surface from being opened (bottom-out), and dropping the contents, and improves the load resistance. It is an object of the present invention to provide a storage box that can be used.

  The present invention provides a first bottom piece to a fourth bottom piece, which are provided from a first side face to a fourth side face forming a side wall and a folding line from each of the first side face to the fourth side face and bent to form a bottom face. The third bottom piece, the second bottom piece, and the fourth bottom piece have a shape that jointly forms an insertion portion when bent to form a bottom surface, and the first bottom portion The piece is provided with an insertion piece to be inserted into the insertion portion, and the second bottom piece and the fourth bottom piece are bent from the end of the insertion portion to the second side surface and the fourth side surface. The above-described problem is solved by having a flap portion that protrudes to the third bottom portion one side from an imaginary straight line that faces the end on the three side surfaces.

  Also, the first side surface to the fourth side surface that form the side wall, and the first bottom surface portion to the fourth bottom surface portion that are provided from the first side surface to the fourth side surface via folding lines and are bent to form the bottom surface. A storage box, wherein the third bottom piece, the second bottom piece, and the fourth bottom piece have a shape that jointly forms an insertion portion when bent to form a bottom surface, and the first bottom piece Is provided with an insertion piece to be inserted into the insertion portion, and the first bottom piece is an end on the second side surface side and the fourth side surface side of the folding line from both ends of the insertion portion to the first side surface. The problem is solved by having a flap portion protruding toward the second side surface side and the fourth side surface side from the imaginary straight line toward the portion.

According to the storage box of the first aspect of the present invention, the second bottom piece and the fourth bottom piece are end portions on the third side surface side of the folding line from the end portion of the insertion portion to the second side surface and the fourth side surface. By having the flap portion projecting to the third bottom portion one side from the imaginary straight line directed to, the flap portion can be bent or bent independently because it constitutes the bottom surface.
Then, by bending or bending the flap portion at the time of assembly, the rigidity of the second bottom piece and the fourth bottom piece increases with respect to the load direction of the contents, and deformation hardly occurs. Thus, it is possible to prevent the contents from falling and to improve the load resistance.

According to the storage box of the second aspect of the present invention, the first bottom piece is more than an imaginary straight line that extends from both ends of the insertion portion toward the second side surface side and the fourth side surface end of the folding line with the first side surface. Further, by having the flap portions protruding to the second side surface side and the fourth side surface side, the flap portion can be bent or bent downward independently because it constitutes the bottom surface.
Then, by bending or bending the flap portion at the time of assembly, the rigidity of the first bottom piece increases with respect to the load direction of the contents, and deformation is less likely to occur. It is possible to prevent falling and improve load resistance.

According to the configuration of the third aspect of the present invention, at least one of a ruled line or a partial cutting line that facilitates bending of the flap portion is provided on the virtual straight line, so that the flap portion can be easily bent or bent during assembly. Can be made.
According to the fourth aspect of the present invention, the insertion piece of the first bottom piece has the retaining protrusion that forms a portion wider than the insertion portion on the distal end side, thereby inserting the first bottom piece. Since the removal of the pieces is suppressed, the bottom surface is further opened (bottom missing), and the stored items are prevented from falling, and the load resistance can be improved.
According to the configuration of claim 5, the third bottom piece has the lock portion that forms the narrower portion than the insertion portion on the distal end side from the portion where the insertion portion is formed, so that the first bottom portion Omission of the inserted piece is further suppressed.

The expanded view of the storage box which is one Embodiment of this invention. The bottom view in the middle of assembly of the storage box which is one embodiment of the present invention (at the time of insertion part formation). The bottom view after the assembly of the storage box which is one Embodiment of this invention. The expanded view of the conventional storage box. The bottom view in the middle of assembly of the conventional storage box (at the time of insertion part formation). The bottom view after the assembly of the conventional storage box.

As shown in the development view of FIG. 1, the storage box according to the embodiment of the present invention includes a first side surface 101, a second side surface 102, a third side surface 103, a fourth side surface 104, and a first side surface. 101, the second side piece 102, the third side face 103, and the fourth side face 104 are provided via folding lines 111, 121, 131, and 141, respectively, and bent to form a bottom surface. And a third bottom piece 130 and a fourth bottom piece 140.
The third bottom piece 130 is provided with an insertion portion forming concave portion 132, and the second bottom piece 120 and the fourth bottom piece 140 are provided with insertion portion forming locking convex portions 122 and 142, respectively.
As shown in FIG. 2, the third bottom piece 130 is folded at the folding line 131, and the second bottom piece 120 and the fourth bottom piece 140 are folded at the folding lines 121, 141 so as to overlap the second bottom piece 120. And the insertion part formation latching convex parts 122 and 142 of the fourth bottom piece 140 are inserted into the bottom part of the insertion part formation concave part 132 of the third bottom piece 130 and locked, so that the bottom part of the insertion part formation concave part 132 is A width insertion portion 150 is formed.

The first bottom piece 110 is provided with an insertion piece 112 to be inserted into the insertion portion 150 and a flap portion 113 on both sides.
The flap part 113 is from the virtual straight line which goes to the edge part on the 2nd side 102 side and the 4th side 104 side of the folding line 111 with the 1st side 101 from the both ends of the insertion part 150 when the insertion piece 112 is inserted. Also, the shape protrudes toward the second side surface 102 and the fourth side surface 104.
Further, on the virtual straight line, a bending auxiliary line 114 in which ruled lines and partial cutting lines (perforations) are alternately continued is provided to facilitate the bending of the flap portion 113.
Furthermore, the insertion piece 112 of the first bottom piece 110 has a retaining projection 115 that forms a portion wider than the insertion portion 150 on the distal end side.

As for the 2nd bottom piece 120 and the 4th bottom piece 140, the flap parts 123 and 143 are provided in the 3rd bottom piece 130 side, respectively.
The flap parts 123, 143 have a third bottom piece 130 rather than an imaginary straight line extending from the end of the insertion part 150 toward the end of the second side face 102 and the fourth side face 104 on the third side face 103 side of the folding lines 121, 141. The shape protrudes to the side.
Further, on the imaginary straight line, bending auxiliary lines 124 and 144 in which ruled lines and partial cutting lines (perforations) continue alternately are provided in order to facilitate the bending of the flap portions 123 and 143.
The insertion portion forming recess 132 of the third bottom piece 130 is provided with a lock portion 133 that forms a narrower portion than the insertion portion 150 on the tip side from the portion where the insertion portion 150 is formed.

When assembling the storage box, the first side surface 101, the second side surface 102, the third side surface 103, and the fourth side surface 104 are assembled into a rectangular tube shape.
When assembling into a rectangular tube shape, it is necessary to fix the end portions of the first side surface 101 and the fourth side surface 104 from the unfolded state in FIG. Alternatively, an insertion structure or the like may be employed to insert the part immediately before use.
After making the rectangular tube shape, as shown in FIG. 2, first, the third bottom piece 130 is bent at the folding line 131, and the second bottom piece 120 and the fourth bottom piece 140 are folded at the folding lines 121, 141 so as to overlap therewith. The insertion portion forming locking projections 122 and 142 of the second bottom piece 120 and the fourth bottom piece 140 are inserted into the bottom of the insertion portion forming recess 132 of the third bottom piece 130 and locked.
At this time, the insertion portion 150 having the width of the bottom portion of the insertion portion forming recess 132 is formed.
Next, as shown in FIG. 3, the first bottom piece 110 is bent along a folding line 111, and the insertion piece 112 on the distal end side is inserted into the insertion portion 150 at the bottom of the insertion portion forming recess 132 to form the bottom surface. .
Further, the four flap portions 113, 123, 143 are bent along the bending auxiliary lines 114, 124, 144, and a slight crease is imparted.

The operation when the storage box having the bottom surface formed in this manner is lifted in a state in which the stored items are stored will be described.
The force received from the load of the contents is a force for rotating the first bottom piece 110, the second bottom piece 120, the third bottom piece 130, and the fourth bottom piece 140 along the folding lines 111, 121, 131, 141. work.
At this time, since the first bottom piece 110, the second bottom piece 120, the third bottom piece 130, and the fourth bottom piece 140 are combined, the insertion piece 112 of the first bottom piece 110 is originally formed. Unless it is deformed, it does not come out of the insertion portion 150, the bottom surface is maintained, and the bottom surface is not opened (bottom-out).
However, when the second bottom piece 120, the third bottom piece 130, and the fourth bottom piece 140 are bent or bent, the first bottom piece 110, the second bottom piece 120, the third bottom piece 130, and the fourth bottom piece. The distal end side of 140 acts as a force in a direction away from the insertion portion 150, the insertion portion 150 is deformed, or a force is applied in a direction in which the insertion piece 112 is removed from the insertion portion 150, and the insertion piece 112 is deformed. Even if it is not, the bottom surface is opened (bottomed out), and the contents fall.

In the present embodiment, since the four flap portions 113, 123, 143 are bent along the bending auxiliary lines 114, 124, 144, the rigidity against the force received from the load of the contents is improved. As long as bending and bending are less likely to occur, the insertion portion 150 is deformed and force is prevented from being applied in the direction in which the insertion piece 112 is removed from the insertion portion 150, and the bottom surface is open unless the insertion piece 112 is deformed ( It is possible to improve the load resistance without the fall of the bottom).
Further, if the bending assist lines 114, 124, 144 are bent after assembly, the insertion portion forming locking projections 122, 142 of the second bottom piece 120 and the fourth bottom piece 140 are inserted into the insertion portion of the third bottom piece 130 at the time of assembly. When inserting into the bottom of the forming recess 132 or inserting the insertion piece 112 of the first bottom piece 110 into the insertion section 150, the first bottom piece 110, the second bottom piece 120, the third bottom piece 130 and the first bottom piece The rigidity of the four bottom piece 140 is the same as that of the conventional one, and the ease of assembly is not impaired.

  Further, in the present embodiment, the insertion piece 112 of the first bottom piece 110 has a retaining protrusion 115 that forms a portion wider than the insertion portion 150 on the distal end side, and the insertion portion formation of the third bottom piece 130 is formed. The recess 132 is provided with a lock portion 133 that forms a narrower portion than the insertion portion 150 on the tip side from the portion where the insertion portion 150 is formed, so that the insertion piece 112 can be moved in the removal direction. It is suppressed.

In the present embodiment, the first bottom piece 110, the second bottom piece 120, and the fourth bottom piece 140 are provided with the flap portions 113, 123, and 143, respectively. However, even if only the flap portion 113 of the first bottom piece 110 is provided. Alternatively, only the flap portions 123 and 143 of the second bottom piece 120 and the fourth bottom piece 140 may be provided.
In the present embodiment, in order to facilitate the bending of the flap portions 123 and 143 on the virtual straight line, bending auxiliary lines 124 and 144 in which ruled lines and partial cutting lines (perforations) are alternately arranged are provided. However, it may have any shape, is not physically processed, and may be bent or bent by an operator during assembly.
Further, the shapes and dimensions of the flap portions 113, 123, and 143 protrude from an imaginary straight line, and are curved or bent to increase the rigidity of the first bottom piece 110, the second bottom piece 120, and the fourth bottom piece 140. Anything is acceptable.
In addition, the storage box is generally formed of cardboard, but the quality of the paper may be any, such as those coated with various coatings, formed of resin other than paper, etc. There may be.

101, 501 ... 1st side surface 102, 502 ... 2nd side surface 103, 503 ... 3rd side surface 104, 504 ... 4th side surface 110, 510 ... 1st bottom piece 111,511. ··· Folding curves 112, 512 ··· Insertion piece 113 ··· Flap portion 114 · · · Bending auxiliary line 115 · · · Preventing convex portion 120, 520 · · · Second bottom piece 121, 521 Curve 122, 522 ... Insertion part formation locking convex part 123 ... Flap part 124 ... Bending auxiliary line 130, 530 ... Third bottom piece 131, 531 ... Folding curve 132, 532 Insertion part concave part 133 ... Lock part 140, 540 ... Fourth bottom piece 141, 541 ... Folding curve 142, 542 ... Insertion part formation locking convex part 143 ... Flap part 144・ ・Song auxiliary lines 150,550 ... the insertion portion

Claims (5)

A storage box having first to fourth side pieces which are provided from first to fourth side faces forming side walls and folding lines from the first to fourth side faces, and are bent to form a bottom face. Because
The third bottom piece, the second bottom piece, and the fourth bottom piece have a shape that jointly forms an insertion portion when bent to form a bottom surface,
The first bottom piece is provided with an insertion piece to be inserted into the insertion portion,
The second bottom piece and the fourth bottom piece are configured such that the third bottom portion is more than a virtual straight line that extends from an end portion of the insertion portion to an end portion on the third side surface side of a folding line with the second side surface and the fourth side surface. A storage box having a flap portion protruding to one side. A storage box having first to fourth side pieces which are provided from first to fourth side faces forming side walls and folding lines from the first to fourth side faces, and are bent to form a bottom face. Because
The third bottom piece, the second bottom piece and the fourth bottom piece have a shape that jointly forms an insertion portion when bent to form a bottom surface,
The first bottom piece is provided with an insertion piece to be inserted into the insertion portion,
The first bottom piece is formed on the second side surface and the first side with respect to an imaginary straight line extending from both ends of the insertion portion toward the second side surface side and the fourth side surface side of the folding line with the first side surface. 4. A storage box having a flap portion protruding to the side surface.   The storage box according to claim 1, further comprising at least one of a ruled line or a partial cutting line that facilitates bending of the flap portion on the virtual straight line.   4. The storage box according to claim 1, wherein the insertion piece of the first bottom piece has a retaining protrusion that forms a portion wider than the insertion portion on the tip side. 5. .   5. The storage box according to claim 4, wherein the third bottom piece has a lock portion that forms a narrower portion than the insertion portion on a tip side from a portion where the insertion portion is formed.

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