JP2007045450A - Carton with bisection - Google Patents

Abstract

An object of the present invention is to provide a carton in which a partition plate is integrally formed upright from a bottom plate opposed to an auto-bottom, maintaining a box opening state, stabilizing the transfer of the carton itself, and normally filling the contents, Provided is a carton with a bipartite partition having a locking structure that is effective even when filling is automated.
SOLUTION: From a single blank, a front plate, a rear plate, and both side plates that form a rectangular cylindrical peripheral wall, and a bottom plate and a partition plate are continuously provided on the lower end extension of the front plate and the rear plate, respectively. A superposed bottom plate and a sticking plate are connected to each other at the lower end of the carton, and the sticking plate is glued to the adjacent bottom plate, and each partition plate is erected and polymerized into two equal parts. An engagement projection having a first engagement portion and a second engagement portion formed in a step shape is projected at the right end of the plate, and the engagement projection is formed on a fold line between each bottom plate and the partition plate. A carton having a bipartite partition, wherein an engagement hole is formed at a position where the engagement is performed, and the engagement protrusion is engaged with an adjacent engagement hole in two stages.
[Selection] Figure 5

Description

  The present invention relates to a carton with a bisection partition having a partition that is integrally provided upright from the bottom of a paper carton.

Conventionally, among the cartons generally called auto-bottoms, that is, the bottom plates extending from the carton side plates, the adjacent bottom plates can be glued and foldable, respectively, and when glued, the glued bottom plates are expanded diagonally. In the carton that is opened and constitutes the bottom part, the partition plate is extended from the position of about half of the bottom plate in the carton thickness direction, and the partition plate is slid while being bent and polymerized when opened. In addition, there is known a structure in which a bisection partition is erected on the inner side of the carton (see, for example, Patent Document 1).
JPO Gazette 56-35 “Collection of Well-known and Conventional Techniques (Sequel / Packaging Industry)” (page 106, Fig. 1)

  However, in the carton with a two-partition partition according to the well-known and conventional techniques described above, for example, in a simple auto-bottom carton, the locking projections provided respectively at the center portions of the bottom plates that slide and approach each other by the hoisting operation are provided. Since there is no locking structure that maintains the unfolded state by engaging each other, there is a drawback that it is easy to return to a flat folded and bonded state, which hinders filling of the contents. In particular, in the automation of the hoisting operation, when the hoisting is performed by a mechanism that presses the outer edge of the folded carton from the opposite direction, a complete hoisting state can be formed by a single pressing operation. The problem is that it is difficult to apply excessive pressure to the carton, leading to breakage, and it is impossible to maintain the opening state, the transfer in the opening state cannot be performed stably, and the contents cannot be filled normally. there were.

  An object of the present invention is to solve the above-described problem, and in a carton in which a partition plate is integrally formed upright from an opposing bottom plate of an auto-bottom type carton, by maintaining a raised state, An object of the present invention is to provide a carton with a two-partition partition that can stably carry the carton itself, can normally fill the contents, and has a locking structure that is effective for box making and filling automation.

  In order to solve the above-mentioned problem, the invention of claim 1 is composed of a single blank, and a front plate, a rear plate, both side plates, and the front plate and the rear plate, which form a rectangular cylindrical peripheral wall using a folding line. A bottom plate and a partition plate are continuously provided on the lower end extension of each of the two side plates via a fold line, and a polymerization bottom plate and an adhesive plate are respectively provided on the lower end extensions of the both side plates via a fold line and an oblique fold line. In the carton that glues the respective partition plates upright and bisects the space between the front plate and the rear plate, and has a step at the right end of each of the sticking plates. An engaging projection having a first engaging portion and a second engaging portion formed in a projecting shape is projected, and the engaging projection is fitted and engaged on a fold line between each of the bottom plate and the partition plate. An engagement hole is formed at a position, and the engagement protrusion is engaged in two stages with an adjacent engagement hole. Is a bisection partition with cartons and butterflies.

  The invention according to claim 2 is the carton with two-partitions according to claim 1, wherein the engaging protrusion has a first engaging portion and a second engaging portion formed in a stepped shape. .

  In the carton with a bipartition partition according to the present invention, an engagement protrusion projects from the right end of each sticking plate, and the engagement protrusion engages and engages on a fold line between each bottom plate and the partition plate. Since the engagement hole is drilled in the position where the engagement protrusion is engaged with the adjacent engagement hole, the lifting state can be maintained when the carton is opened, and flat folding and bonding Since it does not return to the state, it is possible to eliminate the drawbacks of the prior art that hinder the filling of contents.

  In addition, since the engagement protrusion has a first engagement portion and a second engagement portion formed in steps, the engagement hole is engaged in two stages. Can be performed in two stages, and as mentioned above, it does not occur that excessive pressure is applied when the carton is opened and damage is not caused, and the opening state can be maintained, and in the opening state Since the transfer can be performed stably, the contents can be filled normally.

  The present invention will be described in detail below with reference to the drawings. FIG. 1 is a developed plan view of an embodiment according to the present invention. FIG. 2 is a plan view showing a folded and bonded state of the embodiment. FIG. 3 is an explanatory partial perspective view showing a state during the opening of the embodiment in the same manner. FIG. 4 is an explanatory partial cross-sectional view illustrating the operation of the partition portion in the state of FIG. 3. FIG. 5A is an explanatory partial perspective view showing a first engagement stage of the embodiment. FIG. 5B is a partial perspective view for explaining the second engagement stage of the embodiment.

  FIG. 1 is a development plan view of an embodiment according to the present invention, in which a paperboard or the like is punched to form a rectangular cylindrical peripheral wall, a rectangular side plate 4, a front plate 3, a side plate 2, a rear plate 1, and a pasting. The pieces 5 are provided in order through folding lines L4, L3, L2, and L1, respectively, and the top plate 6 is provided on the upper end extension of the rear plate 1 through the folding lines L5 and L6, and the breaking lines L22 and 23 are provided on the upper left and right sides. The pre-polymerization plate 7 having the insertion portions 18 and 19 provided at the center and the insertion 20 via the folding line L21 at the center upper end is connected to the upper ends of the side plates 2 and 4 via the folding lines L7 and L8, respectively. Ear pieces 8 and 9 are extended. On the other hand, bottom plate 10, partition plate 14 and bottom plate 11, and partition plate 15 are provided on lower end extensions of rear plate 1 and front plate 3 via folding lines L9, L13, L11, and L14, respectively. Are provided on the lower ends of the side plates 2 and 4, respectively. The polymerized bottom plate 12, the sticking plate 16, the superposed bottom plate 13, and the sticking plate 17 are connected continuously through the female fold line L19, the fold line L12, and the diagonal fold line L20, and the blank board 101 of the bisection partition carton is configured. The fold lines L13 and L14 are divided into bent fold lines formed by curved fold lines L15 and L17 bulging toward the bottom plate near the left end and curved fold lines L16 and L18 bulging toward the partition plate, respectively. Engagement holes 24 and 25 each having a groove projecting toward the center of the carton width from a trapezoidal right shoulder having a left edge perpendicular to the right and a right edge inclined to the right, close to the fold line portion and closer to the center in the carton width direction; Are provided on the right side of the lower ends of the sticking plates 16 and 17, respectively. The engaging protrusions 22 and 23 each have a first engaging portion 22b, a second engaging portion 22a, a first engaging portion 23b, and a second engaging portion 23a formed at steps at the upper end. . Further, an insertion hole 21 is formed in the central portion near the lower end of the front plate 3.

  FIG. 2 is a plan view showing the folded and bonded state of the embodiment. In making a box from the blank plate 101, the bottom plate 10, the partition plate 14 and the bottom plate 11, and the partition plate 15 are folded using the folding lines L9 and L11, respectively. The folding plates L and L are folded using the folding lines L10 and L12, the folding plates 16 and 17 are folded using the diagonal folding lines L19 and L20, and then folded using the folding lines L2 and L4. 5 is stuck, and the sticking plates 16 and 17 are stuck to the end portions of the adjacent bottom plates 10 and 11, respectively, to complete the folding bonding.

  Next, in assembling the examples, when the standing state described in the previous section is raised to form a peripheral wall in the form of a rectangular cylinder using the fold lines L1, L2, L3, and L4, The bottom plate 10, the sticking plate 16, the superposed bottom plate 12 and the bottom plate 11, the sticking plate 17, and the superposed bottom plate 13 are respectively activated to form the bottom part, and the partition plates 14 and 15 extending from the bottom plates 10 and 11. Are folded and polymerized at a position where the space between the front plate 3 and the rear plate 1 is divided into two equal parts to form a bisection partition as shown in FIG. At the same time, in this embodiment, the engaging protrusions 23 and 22 protruding from the sticking plates 17 and 16 are fitted and engaged with the engaging holes 24 and 25 respectively formed in the folding lines L13 and L14. Maintains stable bottom formation. Thereafter, in the embodiment, predetermined contents are stored in the regions partitioned by the partition plates 14 and 15, respectively, the ear pieces 8 and 9 are folded, the top plate 6 is crowned, and the pre-polymerization plate 7 is then moved to the front. While superposing on the plate 3, the pasting portions 18 and 19 are glued to complete the assembly. In addition, in using the carton of the embodiment, the break lines L22 and L23 can be cut and opened from the insertion 20 provided in the central portion of the pre-polymerization plate 7, and the contents can be taken out.

  FIG. 4 is an explanatory partial cross-sectional view showing the operation of the partition portion in the state of FIG. 3, which differs from the actual cross-sectional view, but at the time of assembly of the present invention, the branch lines provided near the left ends of the folding lines L13 and L14, respectively. The function of the broken line portion is shown. In the embodiment, each of the bent fold lines L15 and L17 bulging toward the bottom plate side and the curved fold lines L16 and L18 bulging toward the partition plate side each have a spindle shape. With the formation, the opposing partition plates 14 and 15 are polymerized in the middle of the rear plate 1 and the front plate 3, that is, divided into two equal parts, and are pressed against each other by the action of the branched broken line portion. Become. This is because each of the branched bent line portions, that is, the spindle-shaped portion formed by the bent bent lines L15 and L16 and the bent bent lines L17 and L18 controls the folding of the bent lines L13 and L14, respectively. Are self-supporting without falling over while pushing against each other, and cannot be obtained with a linear folding line as in the prior art. In addition, in the embodiment, the branched fold line portion has a spindle shape using a curved fold line, but it is not limited to this, and the divergence of the abacus is a straight line in which the fold lines that are branched and opposed are parallel, It is good also as a rhombus shape. In addition, the branched broken line part can be designed in accordance with the shape change of the bottom plate, the partition plate, and the entire carton, but there is a disadvantage that the entire shape is distorted if the shape and size are extremely large. If the shape or size is too small, the above-mentioned effects may not be obtained.

  FIG. 5A is a partial perspective view for explaining the first engagement stage of the embodiment, and is a view showing a state in the middle of raising and engaging from the bottom plate portion direction, and the engagement protrusion in FIG. The first engagement on the distal end side of the engagement protrusion 22 continues in a state in which the engagement protrusion 22 is inserted into the engagement hole 25 (although not shown in the drawing, the engagement protrusion 23 is simultaneously inserted into the engagement hole 24). The joint portion 22b is locked to one end edge of the engagement hole 25, and at the same time, the first engagement portion 23b on the distal end side of the engagement protrusion 23 is locked to one end edge of the engagement hole 24, The carton as a whole is shown as being opened. As described in the section of the background art and the effect of the invention, in the opening of a carton in which this kind of partition is integrally formed, particularly in the automatic boxing, the outer edge of the folded carton is respectively viewed from the opposite direction. When opening with the pressing mechanism, it is difficult to form a complete opening state with a single pressing operation, causing excessive pressure on the carton to cause breakage, but the opening state could not be maintained. However, by setting the stage to open before the complete opening as described above, it does not require excessive pressure on the carton and enables smooth opening operation, and damage to the carton etc. Does not occur.

  Next, FIG. 5B is an explanatory partial perspective view showing the second engagement stage of the embodiment, that is, a view of the completed state of the hoisting and bottom part engagement seen from the bottom plate part direction. The engagement of the engagement protrusions 22 and 23 into the engagement holes 25 and 24 proceeds, and the second engagement portion 22a on the distal end side of the engagement protrusion 22 engages with one end edge of the engagement hole 25. The second engagement portion 23a on the end side of the engagement projection 23 is locked to one end edge of the engagement hole 24, and the carton as a whole has been opened. As shown in FIGS. 1, 5A and 5B, the second engaging portion 23a on the distal end side of the engaging protrusion 23 has a notch starting point deeper than a half of the carton depth dimension. However, this is because the movability of the engagement protrusion 23 is controlled so that the engagement into the engagement hole 24 is performed more smoothly, and the same processing can be applied to the engagement protrusion 22.

The expanded top view of the Example which concerns on this invention. The top view which similarly shows the folding bonding state of an Example. Similarly, the partial perspective view for explanation which shows the state in the middle of the opening of the example. FIG. 4 is an explanatory partial cross-sectional view illustrating an operation of a partition portion in the state of FIG. 3. (A) The explanatory partial perspective view which similarly shows the 1st engagement stage of an Example. (B) The explanatory partial perspective view which similarly shows the 2nd engagement stage of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Back plate 2 Side plate 3 Front plate 4 Side plate 5 Adhesive piece 6 Top plate 7 Pre-polymerization plate 8, 9 Ear piece 10, 11 Bottom plate 12, 13 Superposition bottom plate 14, 15 Partition plate 16, 17 Adhesion plate 18, 19 Adhesion Attached part 20 Insertion 21 Insertion hole 22, 23 Engagement protrusion 22a, 23a Second engagement part 22b, 23b First engagement part 24, 25 Engagement hole 101 Blank plate L1-L14, L21 Folding line L15-L18 Bay Curved line L19, L20 Diagonal fold line L22, L23 Break line W1 Carton body depth dimension W2 Bottom plate dimension between fold lines

Claims (2)

Front plate, rear plate, both side plates, which are composed of a single blank and form a rectangular cylindrical peripheral wall using a fold line, and a bottom plate and a partition plate via a fold line on the lower extension of the front plate and the rear plate, respectively. Are continuously provided, and a polymerization bottom plate and a sticking plate are continuously provided on the lower end extension of the both side plates via a folding line and a diagonal folding line, respectively, and the sticking plate is glued to the adjacent bottom plate, and each In the carton that erects and partitions the partition plate and bisects the space between the front plate and the rear plate, each sticking plate is provided with an engaging projection, and the bottom plate and the partition plate A carton having a bisection partition, wherein an engagement hole is formed at a position where the engagement protrusion is fitted and engaged on the fold line between the two. The carton with a bipartition partition according to claim 1, wherein the engaging projection has a first engaging portion and a second engaging portion formed in a step shape.

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