JP5675576B2 - Packing material - Google Patents

Description

  The present invention relates to a packaging material that is formed into a polygonal cylinder by folding and assembling cardboard along a mountain fold line and that accommodates a packaged item inside.

  Generally, a cardboard packaging material such as cardboard is used as a packaging material for products such as a toner cartridge of an image forming apparatus and an IH unit of a fixing device.

  As a conventional packing material of this type, a cardboard box configured so that an outer flap (upper lid) and an inner flap (lower lid) are overlapped at an opening portion is known. This cardboard box is formed with a protrusion formed at the tip of the outer flap, a long hole formed in the inner flap so that the protrusion can be inserted, and a lower side formed below the middle of the long hole. A first cut and raised as a fulcrum, a second cut and raised formed at the first cut and raised at the upper side, and the second cut and raised formed at the projecting portion can be fitted And a joint hole. And after inserting the said protrusion part in a long hole, the packing state is hold | maintained by pushing the lower part of the said 2nd raising part inside a box (for example, refer patent document 1).

JP-A-8-72867

  However, the above-described conventional cardboard box has a three-step operation in which the projecting portion is bent, inserted into the long hole, and the second cut-and-raised portion is inserted into the fitting hole. There is a problem that workability is poor because it is necessary. In addition, since the number of man-hours for the packing work is large, there is a problem in that the packing work cannot be mechanized.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a packing material that can maintain the packing state by one-step operation and can achieve mechanization of packing work.

  In order to achieve the above-described object, the present invention is a packing material that is formed into a polygonal cylindrical shape by folding and assembling cardboard along a mountain fold line, and contains the package inside. A plurality of flat portions are formed adjacent to each other on the boundary, and are formed at the opening portions formed in the flat portion on one end side of the flat portions and at both ends in the formation direction of the mountain fold line of the opening portions, respectively. A notch portion, a presser piece protruding toward the one end side so as to close the center of the opening, and a flat portion on the other end side of the flat portion with the mountain fold line as a boundary A polymer piece that can be polymerized with the flat portion on one end side and can be polymerized at the time of assembly, a push piece that can be bent inwardly at a position corresponding to the opening of the polymer piece, and each notch Both of the pressing pieces so as to protrude outward in the formation direction of the mountain folding line Each of the projecting portions projecting from each of the portions, and when the pressing piece is pushed into the opening during assembly, the projecting pieces are respectively locked to the outer peripheral portion of the notch and the presser piece is By being in contact with the outer surface of the pressing piece, a state of being bent into a polygonal cylinder shape is maintained.

  The push piece is preferably provided with a finger hole.

  Further, it is preferable that the finger hooking hole is formed adjacent to a folding line for bending the pressing piece, and a finger escape hole is formed at an edge portion of the opening facing the finger hooking hole.

  According to the present invention, since the packing state can be maintained by one-step operation, workability can be improved and mechanization of the packing operation can be achieved. be able to.

It is an expanded view which shows the state which expand | deployed the packing material which concerns on embodiment of this invention. It is a perspective view which shows the state which assembled the packaging material which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, FIG. 1 is a development view showing a state where the packaging material according to the embodiment of the present invention is developed, and FIG. 2 is a perspective view showing a state where the packaging material according to the embodiment of the present invention is assembled. In the following description, the vertical and horizontal directions will be described with reference to the direction in FIG. 1 for convenience.

  The packaging material according to the embodiment of the present invention is configured such that, for example, a cardboard cardboard 1 is assembled in a cylindrical shape so that a package (not shown) can be accommodated therein. In the embodiment of the present invention, the case where the package has a horizontally long shape and a concave portion is formed in the longitudinal direction on the upper surface side like a toner cartridge will be described as an example.

  As shown in FIG. 1, the cardboard 1 has a substantially rectangular shape surrounded by an upper side 2, a lower side 3, a left side 4, and a right side 5, and is parallel to the upper side 2 and the lower side 3 in order from the top. Three first to third mountain fold lines 6, 7, 8 are formed between the left side 4 and the right side 5, so that the first to fourth horizontally long plane portions 9, 10, 11, 12 are greatly increased. It is divided into four parts.

  On the center side of the first mountain fold line 6, two center side projecting pieces 13 a and 13 b are formed in parallel on the left and right sides from the lower side of the first horizontally long plane portion 9 to the second horizontally long plane portion 10. Each of the center side projecting pieces 13a and 13b has a pair of left and right cut vertical lines 14a and 14b formed so as to intersect at right angles to the first mountain fold line 6 and to face each other. The cut vertical lines 14a and 14b form a U-shape with the cut horizontal lines 14c formed so as to connect the upper ends of the cut vertical lines 14a and 14b.

  On both the left and right sides of the first mountain fold line 6, projecting end portions 15a and 15b on both ends are formed from the upper side of the second horizontally long flat portion 10 to the first horizontally long flat portion 9, respectively. The side projecting piece portions 15a and 15b intersect with the first mountain fold line 6 at a right angle and are formed so as to face each other, and a pair of left and right cut vertical lines 16a and 16b, and a pair of left and right cut vertical lines 16a, A U-shape is formed by the cut horizontal line 16c formed so as to connect the upper ends of 16b.

  Further, on the center side of the second mountain fold line 7, it extends from the upper side of the third horizontally long plane portion 11 to the second horizontally long plane portion 10, and extends to the center side projecting pieces 13 a and 13 b of the first mountain fold line 6. Two center side projecting pieces 17a, 17b are formed in parallel on the left and right sides at substantially corresponding positions, and each center side projecting piece 17a, 17b is formed at the center side formed on the first mountain fold line 6. It is formed in the opposite direction to the overhanging pieces 13a and 13b.

  Further, on both the left and right sides of the third mountain fold line 8, it extends from the lower side of the third horizontally long plane portion 11 to the fourth horizontally long plane portion 12, and extends to both end side protruding pieces 15 a and 15 b of the first mountain fold line 6. Both end side projecting piece portions 18a and 18b are formed at substantially corresponding positions, and the both end side projecting piece portions 18a and 18b are formed at both end side projecting piece portions 15a and 15b formed on the first mountain fold line 6, respectively. 15b is formed in the opposite direction.

  In the center of the first horizontally long flat surface portion 9 on the uppermost end side of the first to fourth horizontally long flat surface portions 9, 10, 11, 12, so as to correspond to the concave portion formed on the upper surface side of the package, A horizontally long opening 19 is formed parallel to the upper side 2. The opening 19 is formed in a symmetrical position on the left and right sides of the flat rectangular long hole 20, semicircular cutouts 21 a and 21 b formed on the left and right sides of the horizontal long hole 20, and the upper side of the horizontal long hole 20. Semi-circular finger escape holes 22a and 22b that are formed respectively. The diameters of the left and right cutouts 21a and 21b are shorter than the height of the laterally long hole 20, so that the respective cutouts 21a and 21b are formed above the cutouts 21a and 21b.

  A pressing piece 24 protrudes upward from the center of the lower side of the horizontally long hole 20 of the opening 19, and a part of the center of the opening 19 is blocked by the pressing piece 24.

  A leftward arrow-shaped cutout hole 25 is formed on the left end side of the first horizontally long plane portion 9, and this cutout hole 25 is provided to indicate the storage direction of the packing material stored inside.

  A first locking portion 26 is formed at the left end of the second horizontally long plane portion 10 and the third horizontally long plane portion 11 so as to straddle the second mountain fold line 7. The first locking portion 26 includes an upper mountain foldable line 27 formed in parallel to the first mountain fold line 6 and the second mountain fold line 7 from the left end of the second horizontally long plane portion 10, and a third horizontally long plane portion. A first locking main body 29 is formed between the left end of 11 and a lower mountain foldable line 28 formed in parallel with the second mountain fold line 7 and the third mountain fold line 8. A rectangular notch 30 is formed at the left end of the third horizontally long flat surface portion 11 in the first locking main body portion 29, and the second mountain fold line 7 passing through the first locking main body portion 29 is a valley fold. It is made possible.

  Moreover, the 1st folding | turning part 31 is formed in the 1st latching | locking part 26 so that it may extend rightward from the 1st latching main-body part 29, and this 1st folding | turning part 31 can be an upper mountain fold. A pair of upper and lower cut horizontal lines 32a and 32b formed on each extension line of the line 27 and the lower mountain foldable line 28 and a vertical cut line formed so as to connect the right ends of the pair of upper and lower cut horizontal lines 32a and 32b. 32c and the U-shape. The first folded portion 31 is formed with a valley foldable line 33 so as to intersect at right angles to the second mountain fold line 7 at the boundary with the first locking main body portion 29. A circular small hole 34 is formed. Further, a trapezoidal cut piece 35 is formed at a position corresponding to the notch 30 of the first locking main body 29 on the lower right side of the first folded portion 31, and the base of the cut piece 35 is formed at the base of the cut piece 35. A valley fold vertical line 36 is formed.

  A second locking portion 37 having a size larger than that of the first locking portion 26 is formed at the right end of the second horizontally long flat surface portion 10 and the third horizontally long flat surface portion 11. The second locking portion 37 includes an upper mountain foldable line 38 formed in parallel to the first mountain fold line 6 from the right end of the second horizontally long plane portion 10, and a third mountain from the right end of the third horizontally long plane portion 11. A second locking main body 40 is formed between the lower mountain foldable line 39 formed in parallel to the fold line 8. The second locking main body 40 has a rectangular notch 41 formed at the right end of the third horizontally long flat surface portion 11. A valley foldable line 42 is formed in parallel to the lower mountain foldable line 39.

  Further, the second locking portion 37 is formed with a second folded portion 43 so as to extend leftward from the second locking main body portion 40, and the second folding portion 43 is formed of an upper mountain fold. A vertical notch formed so as to connect the left and right ends of a pair of upper and lower cut horizontal lines 44a and 44b and a pair of upper and lower cut horizontal lines 44a and 44b formed on each extension line of the possible line 38 and the lower mountain foldable line 39. The line 44c forms an inverted U shape. A fold line 45 is formed on the second folded portion 43 on the extended line of the valley foldable line 42 of the second locking main body portion 40. The second folded portion 43 can be valley-folded so as to intersect the fold line 45 and the valley foldable line 42 of the second locking main body 40 at a right angle at the boundary with the second locking main body 40. A line 46 is formed, and a circular small hole 47 is formed at the intersection. Further, a trapezoidal cut piece 48 is formed at a position corresponding to the notch 41 of the second locking main body portion 40 on the lower left side of the second folded portion 43. A valley fold vertical line 49 is formed.

  Of the first to fourth horizontally long flat portions 9, 10, 11, and 12, the lowermost fourth horizontally long flat portion 12 is overlapped with a mountain fold line 50 parallel to the third mountain fold line 8 as a boundary. The piece 51 is formed adjacent to the fourth horizontally long flat surface portion 12, and projecting piece portions 52 a and 52 b are formed on both the left and right sides of the overlap piece 51 so as to extend downward from the fourth horizontally long flat surface portion 12. Has been. In addition, the mountain fold line 50 is formed with protruding pieces 53a and 53b in parallel from the upper side of the overlapping piece 51 to the fourth horizontally long plane portion 12, and the protruding pieces 53a and 53b are Each of the pair of left and right cut vertical lines 54a and 54b formed so as to intersect at right angles to the mountain fold line 50 and face each other is connected to the upper ends of the pair of left and right cut vertical lines 54a and 54b. An inverted U-shape is formed by the formed cut horizontal line 54c.

  The overlapping piece 51 has a horizontally long rectangular shape, and the left and right lengths are shorter than those of the first to fourth horizontally long flat surface portions 9, 10, 11, and 12. A horizontally long push piece 56 is formed at a position corresponding to the opening 19 at the boundary.

  The push piece 56 has a flat rectangular side long piece 57 formed so as to correspond to the side long hole 20 of the opening 19 and a side long piece so as to correspond to the left and right cutouts 21 a and 21 b of the opening 19. The positions of the semicircular protrusions 58a and 58b projecting on the left and right sides of the right side 57 and the upper side of the laterally long piece 57 are symmetrical to each other and correspond to the finger escape holes 22a and 22b of the opening 19. And the left and right protrusions 58a and 58b are located on the left and right outer sides of the left and right engaging protrusions 23a and 23b of the opening 19, respectively. It is formed to protrude. The left and right projecting pieces 58a and 58b have a diameter shorter than the height of the laterally long piece 57, and locking protrusions 60a and 60b are formed at the upper portions of the protruding pieces 58a and 58b, respectively. The protrusions 23a and 23b can be fitted.

  In order to assemble the packaging material according to the embodiment of the present invention from the cardboard 1 having such a configuration, first, in the first locking portion 26, the first folding portion 31 is moved along the valley foldable line 33 to the first engagement. After folding and folding so as to overlap with the stop main body portion 29, the cut piece 35 is valley-folded along the valley folding vertical line 36 and locked to the notch 30, and the first folding portion 31 and the first engagement The polymerization state with the stop main body 29 is maintained. Further, in the second locking portion 37, similarly to the first locking portion 26, the second folding portion 43 is folded back and folded along the valley foldable line 46 so as to overlap the second locking main body portion 40. Above, the cut piece 48 is valley-folded along the valley fold vertical line 49 and locked to the notch 41, and the overlapping state of the second folded portion 43 and the second locking main body portion 40 is maintained.

  Next, after placing the package at a predetermined position on the cardboard 1 and then folding the cardboard 1 along the first to third mountain fold lines 6, 7, 8 and the mountain fold line 50, The overhanging piece portions 52a and 52b abut on the upper end surface of the first horizontally long flat surface portion 9, the overlapped piece 51 is overlapped with the first horizontally long flat surface portion 9, and the cardboard 1 is bent into a rectangular cylindrical shape. At this time, the first locking portion 26 in a state where the first folding portion 31 is overlapped with the first locking body portion 29 and the second locking portion where the second folding portion 43 is overlapped with the second locking body portion 40. By engaging the locking portion 37 with the second mountain fold line 7 and the valley foldable line 42, respectively, the first locking portion 26 and the second locking portion 37 are engaged with both ends of the package. The movement of the package within the packing material is restricted.

  Thus, when the superposition piece 51 is superposed on the first horizontally long flat portion 9, the push piece 56 is positioned on the opening portion 19. When the push piece 56 is pressed in this state, the push piece 56 is bent inward, It is pushed into the opening 19. Accordingly, the left and right protrusions 58a and 58b are formed so as to protrude to the left and right outside of the left and right locking protrusions 23a and 23b, and the locking protrusions 23a and 23b are fitted in the locking recesses 60a and 60b. Since the end portions of the projecting pieces 58a and 58b are formed so as to be capable of being engaged, the end surfaces of the projecting pieces 58a and 58b are engaged with the rear surfaces of the engaging projecting portions 23a and 23b. The state folded into a shape is firmly held.

  On the other hand, when the package is packed with the packing material according to the embodiment of the present invention as described above, a finger is inserted into the finger hooking holes 59a and 59b of the push piece 56, and the overlapping piece 51 is lifted to the outside. The state in which the projecting pieces 58a, 58b are locked to the outer peripheral portions of the notches 21a, 21b and the state in which the presser piece 24 is in contact with the outer surface of the press piece are released, and the packing state of the packing material can be released. At this time, since the finger escape holes 22a and 22b are provided at positions corresponding to the finger hook holes 59a and 59b, the overlapping piece 51 can be lifted smoothly and easily.

  According to the packaging material according to the above-described embodiment of the present invention, since the packaging state of the packaging material can be maintained in one step of pressing the push piece 56, workability can be improved. It is also possible to mechanize the packing work. Moreover, since it can carry out only by the operation | movement which lifts the superposition | polymerization piece 51 with a finger also when opening a packing state, simplification of the opening / closing operation | work of a package can be achieved.

  Further, contrary to the intention, even if a force acts in the direction of releasing the packing state along the overlapping piece 51, the end surfaces of the protruding pieces 58a and 58b are locked to the locking protrusions 23a and 23b, so that the packing state is It is not easily solved.

  Further, the first and second locking portions 26 and 37 are formed by folding the first and second folding portions 31 and 43 on the first and second locking main body portions 29 and 40, and have sufficient strength. Since it has, it can provide the packaging material which is hard to break.

  Furthermore, overhanging pieces 13a, 13b, 15a, 15b, 17a, 17b, 18a, 18b, 52a, 52b, 53a, 53b and small holes 34, 47 are arranged everywhere on the mountain fold line and the valley fold line. Therefore, it is easy to bend and the efficiency of the packing work can be improved, and the projecting pieces 13a, 13b, 15a, 15b, 17a, 17b, 18a, 18b, 52a, 52b, 53a, 53b extend outward during folding. Since it functions as a cushioning material, the package can be reliably protected from external impacts.

  In the above-described embodiment, the case where the opening portion 19 is provided in the center of the first horizontally long flat portion 9 so as to correspond to the concave portion formed on the upper surface side of the package has been described. It is not limited to a case, You may provide the opening part 19 in the position remove | deviated from the center of the 1st horizontally long plane part 9 according to the position and shape of the recessed part of a package. In addition, if there is a slight gap between the packing material and the packing material, the push piece 56 can be pushed into the opening 19, so that the packing material according to the present invention packs the packing material having no recess on the outer surface. It is also applicable to.

  In addition, since description of embodiment of this invention mentioned above has described suitable embodiment in the packing material which concerns on this invention, it attaches various technically preferable restrictions in a shape, a position, etc. However, the technical scope of the present invention is not limited to these embodiments unless specifically described to limit the present invention. Furthermore, the components in the embodiment of the present invention described above can be appropriately replaced with existing components and the like, and various variations including combinations with other existing components are possible. The description of the embodiment of the present invention described above does not limit the contents of the invention described in the claims.

DESCRIPTION OF SYMBOLS 1 Thick paper 6, 7, 8 Mountain fold line 9, 10, 11, 12 1st-4th horizontally long plane part 19 Opening part 22a, 22b Finger escape hole 23a, 23b Locking protrusion 24 Pressing piece 50 Mountain fold line 51 Superposition | polymerization 55 fold line (folding line)
56 Pushing pieces 58a, 58b Protruding pieces 59a, 59b Finger holes

Claims (3)

It is a packing material that is formed into a polygonal cylinder by assembling and folding cardboard along a mountain fold line,
A plurality of plane portions are formed adjacent to each other with the mountain fold line as a boundary, and an opening formed along the direction of the mountain fold line in the plane portion on one end side of the plane portion, and the opening Locking projections formed in the vicinity of both ends of the fold line forming direction of the side portion on the one end side of the opening portion, and the fold line side of the opening portion so as to close the center of the opening portion. a pressing piece which is protruded toward the side portion on the one end, the plane of said one end of the mountain fold lines to the plane of the other end during assembly is formed adjacent to the boundary of said flat portion A polymerization piece that can be polymerized with a portion, a push piece that can be bent inwardly at a position corresponding to the opening of the polymerization piece, and an outer side in the formation direction of the mountain fold line from each of the locking projections Projecting pieces projecting from both end portions of the pushing piece to project,
With
At the time of assembly, when the pressing piece is positioned on the opening in a state where the overlapping piece is overlapped on the flat portion, and the pressing piece is pushed into the opening, the protruding pieces are respectively the locking protrusions. A packing material configured to be held in a polygonal cylindrical shape by being held in contact with the pressing piece and abutting the outer surface of the pressing piece.   The packing material according to claim 1, wherein a finger hooking hole is provided in the pressing piece. The finger hooking hole is formed adjacent to a fold line for bending the push piece, and a finger escape hole is formed at an edge portion of the opening facing the finger hooking hole. Item 3. A packaging material according to item 2.

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