JP2019182488A - Bottom one-touch box - Google Patents

Abstract

An object of the present invention is to provide a bottom one-touch box capable of preventing breakage at the time of mailing due to processing failure during production or misalignment during production and improving productivity. A pair of side plates forming a peripheral wall are connected to each other, and a pair of bottom plates forming a bottom wall extend from each side plate via a ridge line. A pair of bottom plates 21 are provided with a diagonal line 23 and a bottom joint piece 24 on one side, and in a bottom one-touch box in which the bottom joint piece 24 is bonded to the other pair of bottom plates 22, the base side of the pair of bottom plates 21 is provided. It is assumed that an auxiliary ruled line 26 extending in parallel with the ridge ruled line 20 is partially engraved on a ridge portion of the other pair of bottom plates 22 with the side plate 12 only in a portion where the edge 21a is close to the edge line 21a. When the side edges 21a of the pair of bottom plates 21 are pressed against the inner surfaces of the ridges of the other pair of bottom plates 22 and the side plates 12 at the time of raising, the bases of the other pair of bottom plates 22 are separated from the auxiliary ruled line 26 so as to release the pressing force. Bends along and prevents tearing. [Selection diagram] FIG.

Description

  The present invention relates to a box having a bottom structure that can be assembled from a folded state by one touch.

  In the bottom one-touch box shown upside down in FIG. 7, each pair of side plates 61 and 62 forming the peripheral wall 51 is joined via a passage 63, and each side plate 61 and 62 is joined to each bottom wall via a ridge ruled line 70. Each pair of bottom plates 71 and 72 forming 52 is extended. On one side of the pair of bottom plates 71, a diagonal folding line 73 directed diagonally to the bottom wall 52 and a bottom joint piece 74 having this as a hinge are provided. A lock portion 75 is provided at the center of the tip of the pair of bottom plates 71.

  In manufacturing the bottom one-touch box, the pair of side plates 61 and 62 are folded, the pair of bottom plates 71 are folded along the oblique folding line 73, and the bottom piece 74 of the bottom plate 71 is overlapped with the adjacent bottom plate 72. When attached, it becomes a flat folded state.

  When the articles are stored, when the pair of side plates 61 and 62 are opened so that the peripheral wall 51 forms a rectangular tube shape, the bending along the oblique line 73 of the bottom plate 71 extends, and the lock portion 75 of the bottom plate 71 extends. The two side edges 71a of the pair of bottom plates 71 are meshed with each other and are close to the inner surfaces of the adjacent ridges of the other pair of bottom plates 72 and side plates 62, and are held in an assembled state.

  By the way, in the bottom one-touch box as described above, even when the joining displacement of the passage 63 at the time of manufacture is within an allowable range, as shown in FIG. If it is attempted to force a three-dimensional force, a tear t may occur from the corner portion at the ridge portion of the pair of side plates 62 and the bottom plate 72 at the diagonal positions.

  As a countermeasure, for example, referring to the description of Patent Document 1 shown in FIGS. 9 (9A) and (9B), the ridge ruled lines 70 at the boundary between the side plates 61 and 62 and the bottom plates 71 and 72 are generally parallel to each other. In addition to the engraving, it is conceivable to adopt a configuration in which two oblique ridge lines 73 and two ridge ruled lines 64 at the boundary between the side plates 61 and 62 are also engraved in parallel to thereby absorb distortion caused by joining displacement.

No. 6-50337

  However, as shown in the above-mentioned Patent Document 1, when two ridge ruled lines 70 are engraved in parallel as a whole, only one ridge ruled line 70 is formed at the time of bending and sticking during manufacturing. There is a possibility that the bent part will be bent, the defect rate will be high when processing with one touch gluer, and the productivity will be lowered.

  Accordingly, the present invention is intended to provide a bottom one-touch box that can prevent breakage at the time of opening due to processing defects during manufacturing or sticking deviation, and can increase productivity.

In order to solve the above-described problems, the present invention includes a pair of side plates that form a peripheral wall, and each pair of bottom plates that form a bottom wall via a ridge ruled line extends from each side plate,
When the bottom joint piece with the diagonal line on one side of the pair of bottom plates as a hinge is overlapped and attached to the other pair of bottom plates, it becomes a flat folded state,
As the peripheral wall is formed into a rectangular tube shape, the bottom plate bends and stretches along a diagonal line, and one side edge of the pair of bottom plates is adjacent to the other pair of bottom plates and the inner surfaces of the ridges of the side plates. In the bottom one-touch box that is held in an assembled state in the vicinity of
In correspondence with the base portions of the pair of bottom plates, auxiliary ruled lines extending in parallel with the ridge ruled lines are partially engraved on the ridges with the side plates of the other pair of bottom plates only at the portions where the side edges are close to each other. ,
When the side edges of the pair of bottom plates are pressed against the inner surface of the ridge portion of the other pair of bottom plates and the side plate when opening, the base portions of the other pair of bottom plates follow the auxiliary ruled line so as to release the pressing force. It was supposed to be bent.

Further, in this bottom one-touch box, in the folded state, the bottom joint piece of the pair of bottom plates is folded along a diagonal fold line,
As the box is opened, the folding along the oblique line of the pair of bottom plates extends to be in an assembled state.

Alternatively, in this bottom one-touch box, in the folded state, the bottom joints of the pair of bottom plates extend without being folded along a diagonal line,
As the box is opened, the bottom joints of the pair of bottom plates are folded along a diagonal line so as to be in an assembled state.

Further, in this bottom one-touch box, each of the pair of side plates is continuous in a strip shape with a blank, and the peripheral wall is formed by pasting the passage continuously provided on the side plate on one end to the side plate on the other end,
The auxiliary ruled line is engraved on the bottom plate connected to the side plate at the other end corresponding to the passage, and the auxiliary ruled line has a length longer than the width of the passage.

  In the bottom one-touch box according to the present invention, the auxiliary ruled lines are only partially engraved at the ridges of the side plate and the bottom plate. It can be bent and the bottom piece can be attached to a predetermined position of the bottom plate, thereby preventing the occurrence of defective box making.

  And with the opening, even if one side edge near the base of the pair of bottom plates is pressed against the inner surface of the other pair of bottom plates and the side plate, the base of the other pair of bottom plates bends along the auxiliary ruled line, Since the pressing force is released, the ridges of the other pair of bottom plates and side plates are prevented from being broken, and the shape is maintained in the assembled state.

  In addition, at the time of manufacture, the bottom plate connected to the side plate to which the passage is attached is bent along the ridge ruled line and the auxiliary ruled line, and the ridge portion of the side plate and the bottom plate forms a bag shape, so that the connection between the side plate and the bottom plate is performed. Insufficiency in insertion is less likely to occur, processing defects during manufacturing are prevented, and productivity is improved.

The reverse view which shows the blank of the bottom one-touch box which concerns on embodiment of this invention The main part enlarged back view of the blank same as above It is an enlarged view showing the relationship between the form of the ruled line and the ruled blade, and (3A) a form in which the auxiliary ruled line is integrated on one side of the ridge line, (3B) a form in which the ridge line and the auxiliary ruled line are separated, (3C ) Schematic showing each integrated form so that auxiliary ruled lines protrude on both sides in the width direction of the ridge ruled lines The perspective view which shows the folding process at the time of manufacture same as the above Plan view showing the folded state of the above (6A) perspective view showing the entire bottom part of the bottom assembly structure that is inverted upside down in the same assembly state, (6B) enlarged perspective view showing the corner part where the auxiliary ruled line acts The perspective view which shows the bottom part of the conventional common bottom one-touch box upside down Bottom view showing the boxing process against joint displacement of the bottom one-touch box The figure which shows one side of the blank divided | segmented into (9A) two parts of the bottom one-touch box described in patent document 1, (9B) The expansion perspective view which shows the corner part of an assembly state

  Hereinafter, an embodiment of a bottom one-touch box according to the present invention will be described with reference to the accompanying drawings.

  This bottom one-touch box is assembled from a blank made of corrugated cardboard as shown in FIG. 1, and this blank is composed of a part forming the peripheral wall 1, a part forming the bottom wall 2, and a part forming the top wall 3. It is configured.

  In the portion forming the peripheral wall 1, the pair of side plates 11 and 12 are alternately connected so as to form a belt shape, and the passage 13 is connected to the side plate 11 at one end thereof. In the portion forming the bottom wall 2, the bottom plates 21 and 22 are connected to the lower ends of the pair of side plates 11 and 12 via the ridge ruled lines 20, respectively. In a portion forming the top wall 3, a lid plate 31 is continuously provided at the upper end of one side plate 11, and a lid receiving piece 32 is continuously provided at the upper ends of the pair of side plates 12.

  One side of the pair of bottom plates 21 is provided with a diagonal fold line 23 directed to the diagonal of the bottom wall 2 in an assembled state, and a bottom joint piece 24 having this as a hinge. The lock part 25 cut into the is provided. The oblique fold line 23 is a reverse ruled line pressed from the surface so as to form a valley fold in which the surface side of the cardboard is depressed.

  The side edge 21a opposite to the bottom piece 24 of the pair of bottom plates 21 is formed so that the peripheral wall 1 is shaped like a square tube during assembly, so that the side plate 11 and the bottom plate 21 are formed from the base of the bottom plate 21 to the tip side. It is inclined inward with respect to the ridge ruled line 20 at the boundary at an angle close to 90 °.

  Then, corresponding to the base portions of the pair of bottom plates 21 in the assembled state, the ridge portion with the side plate 12 of the other pair of bottom plates 22 extends in parallel with the ridge ruled line 20 only in the portion where the side edge 21a is close. An auxiliary ruled line 26 is partially engraved (see FIG. 6).

  The auxiliary ruled line 26 is a normal ruled line pressed from the back side so as to be a mountain fold protruding from the front side of the cardboard. Further, as shown in FIG. 2, the length L of the auxiliary ruled line 26 is equal to or larger than the width W of the passage 13 and specifically, it is about 5 mm longer.

  As shown in FIG. 3 (3A), the ridge ruled line 20 and the auxiliary ruled line 26 are basically in a form in which the auxiliary ruled line 26 is integrated on one side of the ridge ruled line 20, but as shown in FIG. 3 (3B), It is good also as a form which mutually isolate | separates and is parallel. Moreover, as shown in FIG. 3 (3C), it is good also as a form integrated so that the auxiliary ruled line 26 may protrude on the both sides of the ridge ruled line 20 in the width direction.

  The shape of the ridge ruled line 20 and the auxiliary ruled line 26 is appropriately selected according to the type of paper that is a blank material (corrugated cardboard such as G flute, E flute, B flute, etc., single-layer paperboard, etc.) What is necessary is just to adjust by changing the space | interval and width | variety of 20A, 26A.

  In this way, the ruled blade 26A for engraving the auxiliary ruled line 26 only needs to be added to the ruled blade 20A for engraving the ridge ruled line 20 with respect to the punching die for forming the conventional blank. The processing cost is not significantly increased.

  When manufacturing a bottom one-touch box from the blank as described above, a one-touch gluer is used to fold each pair of side plates 11 and 12 as shown in FIG. The bottom joint piece 24 of the pair of bottom plates 21 is folded back along the oblique fold line 23, and the bottom joint piece 24 is overlapped and adhered to the adjacent bottom plate 22.

  At this time, since the auxiliary ruled lines 26 are only partially engraved at the ridges of the side plates 11 and 12 and the bottom plates 21 and 22, when the bottom plates 21 and 22 are bent from the side plates 11 and 12, along the ridge ruled lines 20. Therefore, the bottom joint piece 24 can be accurately bent without being folded, and the bottom joint piece 24 can be attached to a predetermined position of the bottom plate 22, thereby preventing the occurrence of defective box making.

  Then, the bottom plate 22 is bent from the side plate 12 along the ridge ruled line 20 and the auxiliary ruled line 26 so that the bottom plate 22 is rounded, and the ridges of the side plate 12 and the bottom plate 22 form a bag shape, so that the passage 13 collides with the bottom plate 22. And easily enters between the side plate 12 and the bottom plate 22.

  Further, since the length L of the auxiliary ruled line 26 is equal to or longer than the width W of the passage 13, the gap between the side plate 12 and the bottom plate 22 is ensured over the entire width of the passage 13, and the passage 13 is connected to the side plate. 12 and the bottom plate 22 are securely inserted. For this reason, it can assemble continuously without causing trouble with one-touch gluer, and productivity is improved.

  As shown in FIG. 5, when the pair of side plates 11 and 12 are completely folded and the passage 13 is attached to the inner surface of the side plate 12 at the other end, the flat plate is flattened in the same manner as a general bottom one-touch box. Therefore, the space can be efficiently used and stored.

  Thereafter, as shown in FIG. 6 (6 </ b> A), when assembling is performed, the folding of the pair of bottom plates 21 along the oblique fold line 23 is extended. Of the pair of bottom plates 21, one side end edge 21 a of the pair of bottom plates 21 is close to the adjacent inner surface of the bottom plate 22 and the side plate 12 and is held in an assembled state.

  In this way, when the three-dimensional structure is formed by forcibly applying the force so that the peripheral wall 1 forms a regular square tube, despite the occurrence of the joint displacement of the passage 13, the base portions of the pair of bottom plates 21. On the side, the one side edge 21 a may be strongly pressed against the inner surface of the ridge portion of the other pair of bottom plate 22 and side plate 12.

  Even in such a state, in the bottom one-touch box, as shown in FIG. 6 (6B), the base portion of the bottom plate 22 is bent along the auxiliary ruled line 26, and the pressing force is released. Breaking from the corners of the 12 ridges is prevented.

  Further, since the auxiliary ruled line 26 is located on the bottom surface, even if the base portion of the bottom plate 22 is bent along the auxiliary ruled line 26, it does not stand out in appearance.

  In the above-described embodiment, the blank 13 is illustrated in which the passage 13 is connected to the side plate 11 at one end, but the passage 13 may be connected to the side plate 12 at the other end, The positional relationship between the side edge 21a and the auxiliary ruled line 26 in 21 and 22 may be reversed.

  Further, in the folded state, the bottom joint piece 24 of the pair of bottom plates 21 is folded along the oblique fold line 23, and the folding along the oblique fold line 23 of the pair of bottom plates 21 is extended as the box is opened. In the folded state, the bottom joint piece 24 of the pair of bottom plates 21 extends without being folded back along the oblique fold line 23, and the bottom joint of the pair of bottom plates 21 is opened as the box is opened. The piece 24 may be bent along the oblique line 23 to be in an assembled state.

  In addition, in the said embodiment, although the plug-and-seal type thing was illustrated as a top surface shape, a top surface shape sticks and seals the flap extended from the upper end of each pair of side plates, or a separate lid | cover. There is no particular limitation.

DESCRIPTION OF SYMBOLS 1 Perimeter wall 2 Bottom wall 3 Top wall 11,12 Side plate 13 Passage 20 Edge ruled line 20A Ruled blade 21 and 22 Bottom plate 21a Side edge 23 Slanted line 24 Bottom piece 25 Lock part 26 Auxiliary ruled line 26A Ruled blade 31 Cover plate 32 Cover piece

Claims (4)

Each pair of side plates (11, 12) forming the peripheral wall (1) is connected in series, and each pair of bottom plates forming the bottom wall (2) from each side plate (11, 12) via the ridge ruled line (20). (21,22) is extended,
When the bottom joint piece (24) having the hinges (23) on one side of the pair of bottom plates (21) as a hinge is overlapped and attached to the other pair of bottom plates (22), it becomes a flat folded state,
With the opening of the peripheral wall (1) to form a square tube, the bottom plate (21) bends and stretches along the oblique line (23), and one side edge of the pair of bottom plates (21) ( In the bottom one-touch box in which 21a) is close to the inner surface of the ridge portion of the other pair of bottom plates (22) and side plates (12) adjacent to each other,
Corresponding to the base portions of the pair of bottom plates (21), only the portion where the side edge (21a) is close to the ridge portion with the side plate (12) of the other pair of bottom plates (22), Auxiliary ruled line (26) extending in parallel with 20) is partially engraved,
When opening, when the side edges (21a) of the pair of bottom plates (21) are pressed against the inner surfaces of the ridges of the other pair of bottom plates (22) and the side plates (12), the pressing force is released. A bottom one-touch box characterized in that the base of the other pair of bottom plates (22) bends along the auxiliary ruled line (26). The bottom one-touch box according to claim 1, wherein in the folded state, the bottom joint piece (24) of the pair of bottom plates (21) is folded along a diagonal line (23),
A bottom one-touch box characterized in that as the box is opened, the folding along the oblique line (23) of the pair of bottom plates (21) is extended into an assembled state. In the bottom one-touch box according to claim 1, in the folded state, the bottom joint piece (24) of the pair of bottom plates (21) extends without being folded along the oblique fold line (23),
The bottom one-touch box, wherein the bottom joint piece (24) of the pair of bottom plates (21) is bent along the oblique fold line (23) in accordance with the opening, and is in an assembled state. The bottom one-touch box according to any one of claims 1 to 3, wherein each of the pair of side plates (11, 12) is continuous in a strip shape with a blank, and is connected to the side plate (11) at one end thereof. 13) is attached to the other side plate (12) to form the peripheral wall (1),
The auxiliary ruled line (26) is engraved on the bottom plate (22) connected to the side plate (12) at the other end corresponding to the passage (13), and the auxiliary ruled line (26) is connected to the passage (13). A bottom one-touch box characterized by having a length (L) equal to or greater than the width (W).

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