JP2017190143A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique facilitating opening a lid part by operating other than the lid part and the front face part when opening the lid part.SOLUTION: Left and right side walls 22 and 24 of a packaging container each include top edge pieces 22a and 24a extending along a lid body 42 from a top edge. The top edge piece 22a projects from a peripheral wall part to a lid body 42 side by being folded by a folding line 62 and a folding line 64 when the left side wall 22 is folded to the outside by a folding line 60. The top edge piece 24a projects as well as the top edge piece 22a, from the peripheral wall part to the lid body 42 side by being folded by a folding line 52 and a folding line 54 when the right side wall 24 is folded to the outside by a folding line 50.SELECTED DRAWING: Figure 6

Description

  The present specification relates to a packaging container.

  A packaging container having a lid is configured so that the lid does not easily open during transportation or storage. For this reason, there are cases where the lid cannot be opened smoothly during opening. Patent Document 1 discloses a technique for easily opening a lid when opening a packaging container. This packaging container has a sliding piece at the upper end of the front portion. The sliding piece is disposed at the center in the left-right direction of the front portion, and is separated from the main body of the front portion at both ends in the left-right direction. Moreover, the rocking | fluctuation piece is connected with the front part via the broken line at the lower end so that rocking is possible. At the lower end of the sliding piece, there is a sliding piece protrusion that protrudes inside the packaging container when the sliding piece is moved.

  The lid portion includes a lid plate portion that is continuously provided on the back surface portion via a broken line, and a bent piece that is continuously provided to the end portion on the front side of the lid plate portion via a broken line. In a state where the lid portion is closed, the bent piece is in contact with the inner surface of the front portion. When the lid portion is hung, the peristaltic piece is swung to the outside of the packaging container from the state where the lid portion is closed, and the peristaltic piece projecting portion is projected to the inside of the packaging container. Thereby, the bending piece which contact | connects the inner surface of a front part is lifted by the sliding piece protrusion part. As a result, since the lid portion is lifted, the lid portion can be easily opened.

Utility Model Registration No. 3157427

  In the above-described technique, it is necessary to arrange a sliding piece on the front portion. In this specification, when opening a cover part, the technique which makes it easy to open a cover part by operating except a cover part and a front part is provided.

  The technology disclosed in this specification relates to a packaging container. The packaging container surrounds the bottom wall part, the bottom wall part, a peripheral wall part having a front wall, a rear wall, and left and right side walls, a lid part rotatably connected to the rear wall, Is provided. The lid portion includes a lid main body that covers the opening of the peripheral wall portion, and a front end piece that extends from the end on the rear wall side of the lid main body to the inside of the peripheral wall portion along the front wall. Each of the left and right side walls includes an upper end piece extending from the upper end along the surface on the peripheral wall portion side of the lid body. The left and right side walls can be bent outward at a first folding curve extending from the back side to the front side, extending from the upper end to the lower end. The left upper end piece includes a second fold line extending from the front side toward the back side toward the upper end of the first fold line on the left side wall from the end opposite to the left side wall, and the back side of the second fold line A third folding line extending in the left-right direction is disposed on the side. The right upper end piece includes a fourth fold curve extending from the front side toward the back side toward the upper end of the first fold line on the right side wall from the end opposite to the right side wall, and the back side of the fourth fold line. A fifth folding line extending in the left-right direction is arranged on the side. When the left side wall is bent outward along the first folding line, the left upper end piece projects from the peripheral wall portion to the lid body side by being bent along the second folding line and the third folding line. When the right side wall is bent outward along the first folding line, the right upper end piece projects from the peripheral wall portion to the lid body side by being bent along the fourth folding line and the fifth folding line.

  In said structure, the front-end piece of a cover part is inserted inside the front wall, and a cover part is closed. In a state where the lid is closed, a finger or the like is hooked on the upper ends of the first folding curves of the left and right side walls, and the left and right side walls are stretched to the left and right. Thereby, the left and right side walls are each bent outward along the first folding line. As a result, the left and right upper end pieces protrude from the peripheral wall portion toward the lid main body, and the lid main body can be pushed upward to increase the gap between the lid portion and the peripheral wall portion. As a result, the lid can be easily opened.

The perspective view of the packaging container in the state where the lid | cover is closed is shown. The development of a packaging container is shown. The perspective view of the packaging container in the state where the lid | cover is opened is shown. The expansion perspective view which expanded the folding line periphery of the state where the lid is opened is shown. The perspective view of the front side of the packaging container in the state where the lid | cover is closed is shown. The perspective view at the time of hooking a finger when opening a lid and expanding the left and right side walls is shown. The perspective view in case a cover part opens in the state which the left-right side wall was spread is shown.

  The main features of the embodiments described below are listed. The technical elements described below are independent technical elements and exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. Absent.

(Feature 1) In the packaging container disclosed in this specification, the left and right side walls may each include a protruding piece protruding upward from the vicinity of the upper end of the first folding line. According to this configuration, the user can open the left and right side walls by placing a finger or the like on the protruding piece. For this reason, the left and right side walls can be easily bent.

(Feature 2) In the packaging container disclosed in the present specification, the left and right edges of the lid main body may each have a relief shape that is separated from each of the protruding pieces. According to this configuration, a finger or the like can be easily hooked on the protruding piece.

(Characteristic 3) In the packaging container disclosed in the present specification, the lower end of the first folding line may be located at an intermediate position in the vertical direction of the left and right side walls. According to this configuration, a decrease in rigidity of the left and right side walls can be suppressed as compared with a configuration in which the first folding curve extends from the upper end to the lower end of the left and right side walls.

(Characteristic 4) In the packaging container disclosed in this specification, the front end piece has a contact portion that contacts the left and right side walls on the left and right side edges on the upper end side, and a non-contact portion that is spaced from the left and right side walls below the contact portion. The vertical length of the contact portion may be shorter than the vertical length of the non-contact portion. By shortening the contact portion of the front end piece, the front end piece and the left and right side walls can be brought into non-contact with each other even if the lift of the lid portion is small. By making the front end piece and the left and right side walls non-contact, the lid can be easily opened.

  FIG. 1 shows a perspective view of the packaging container 10 with the lid 40 closed. FIG. 2 shows a blank BL in which the packaging container 10 is developed. FIG. 3 shows a perspective view of the packaging container 10 with the lid 40 opened. The packaging container 10 is produced by assembling one blank BL. The packaging container 10 is made of strong paper such as cardboard. The material of the packaging container 10 is not limited to paper, and may be a material other than paper such as resin.

  As shown in FIGS. 1 and 2, the packaging container 10 has a rectangular parallelepiped shape. The packaging container 10 includes a peripheral wall portion 20, a bottom wall 30, and a lid portion 40. The bottom wall 30 has a rectangular flat plate shape. The four walls 22, 24, 26, and 28 of the peripheral wall portion 20 are rotatably connected to the four sides of the bottom wall 30. The peripheral wall portion 20 includes four wall surfaces including left and right side walls 22 and 24 and front and rear walls 26 and 28. The front wall 26 has a double structure of an inner wall surface 26a and an outer wall surface 26b each having a rectangular flat plate. The inner wall surface 26a and the outer wall surface 26b are connected to each other at their upper ends.

  Left and right side walls 22 and 24 are connected to the left and right ends of the front wall 26. The left and right side walls 22 and 24 each have a rectangular flat plate shape. An upper end piece 24 a is disposed at the upper end of the right wall 24. The upper end piece 24a is connected to the right side wall 24 so as to be rotatable from the upper end of the right side wall 24 over the entire length of the right side wall 24 in the front-rear direction. The upper end piece 24a is disposed along the lower surface of the lid main body 42 of the lid portion 40 described later. As shown in FIG. 4, a folding line 50 is disposed on the right side wall 24. The folding line 50 extends downward from the upper end of the right side wall 24. The folding line 50 extends to an intermediate position in the vertical direction of the right side wall 24. The folding line 50 has a linear shape that inclines forward from the upper end toward the lower side. The folding line 50 is formed by pressurizing the right side wall 24 from the inner surface to form a concave groove. The folding line 50 may be formed by disposing intermittent slits (so-called perforations). In general, the folding line 50 may be formed by reducing the rigidity of the right side wall 24.

  A folding line 52 is disposed on the upper end piece 24a. The folding line 52 extends from the upper end of the folding line 50 toward the left side. The folding line 52 has a linear shape that inclines forward from the right end toward the left end. The right end of the folding line 52 is located at the right end of the upper end piece 24a (that is, the end on the right wall 24 side), and the left end of the folding line 52 is located at the left end of the upper end piece 24a. Similar to the folding curve 50, the folding line 52 is formed by pressing the upper end piece 24a from the inner surface to form a concave groove.

  A projecting piece 56 that protrudes upward from the upper end of the right side wall 24 is disposed behind the connecting position of the folding line 50 and the folding line 52. The protruding piece 56 is formed by cutting a boundary portion between the right side wall 24 and the upper end piece 24a in the blank BL. For this reason, a cut is formed on the upper end piece 24 a side of the protrusion piece 56.

  A folding line 54 is further arranged on the upper end piece 24a. The folding line 54 extends in parallel in the left-right direction from the center in the front-rear direction of the protruding piece 56. The right end of the folding line 54 is located at the right end of the upper end piece 24a (that is, the end on the right wall 24 side), and the left end of the folding line 54 is located at the left end of the upper end piece 24a. Similar to the folding line 52, the folding line 54 is formed by pressing the upper end piece 24a from the inner surface to form a concave groove.

  At the upper end of the left side wall 22, an upper end piece 22a having the same shape as the upper end piece 24a is disposed. The left side wall 22 including the upper end piece 22a is formed in plane symmetry (hereinafter simply referred to as “plane symmetry”) with respect to the right side wall 24 including the upper end piece 24a and a plane perpendicular to the horizontal direction passing through the center in the horizontal direction. Has been. That is, the left side wall 22 has a folding line 60 that is arranged in plane symmetry with respect to the folding line 50 of the right side wall 24, and the upper end piece 22 a is a folding line that is arranged in plane symmetry with respect to the folding line 52. It has a curve 62 and a fold line 64 arranged symmetrically with respect to the fold line 54. In addition, a projection piece 66 arranged in plane symmetry with respect to the projection piece 56 is arranged at the upper end of the left side wall 22.

  The left side wall 22 includes an engagement piece 22b extending toward the right side wall 24 at the rear end. By engaging the engagement piece 22b with the engagement piece 24b extending toward the left side wall 22 at the rear end of the right side wall 24, the left and right side walls 22 and 24 can be prevented from falling down.

  A rear wall 28 is disposed behind the engagement pieces 22b and 24b. The rear wall 28 has a rectangular flat plate shape. A lid 40 is disposed at the upper end of the rear wall 28. The lid portion 40 includes a lid body 42 and a front end piece 44. The lid body 42 is rotatably connected to the upper end of the rear wall 28. The lid body 42 has a rectangular flat plate shape. The lid body 42 covers the opening at the upper end of the peripheral wall portion 20. On both the left and right sides of the lid main body 42, escape portions 42a are arranged. The escape portion 42 a on the right end side is disposed on the left side of the protruding piece 56. The escape portion 42 a is formed by cutting the lid main body 42 into a semicircular shape so that the right end side is separated from the protruding piece 56. The left end side relief portion 42a is arranged in plane symmetry with respect to the right end side relief portion 42a, and is formed by cutting the lid body 42 into a semicircular shape so that the left end side is separated from the protruding piece 66. Yes.

  A front end piece 44 is rotatably connected to the front end side of the lid main body 42. The front end piece 44 is connected over the entire length of the lid body 42 in the left-right direction. The front end piece 44 has an upper end portion 44a and a lower end portion 44b. The upper end portion 44 a is connected to the front end side of the lid main body 42. The upper end portion 44a has a rectangular flat plate shape having substantially the same length as the distance between the inner surfaces of the left and right side walls 22 and 24 in the left-right direction. A lower end 44b is disposed below the upper end 44a (that is, on the side opposite to the lid main body 42). The left and right ends of the lower end portion 44b are inclined with respect to the vertical direction. In other words, in the front end piece 44, the portion where the left and right end sides extend in the vertical direction is the upper end portion 44a, and the portion where the left and right end sides are inclined with respect to the vertical direction is the lower end portion 44b. . In the left-right direction, the length of the lower end 44b is shorter than the upper end 44a.

  The front end piece 44 is disposed inside the inner wall surface 26a of the front wall 26 in a state where the lid portion 40 is closed. The front end piece 44 is sandwiched between the inner wall surface 26a and the upper end pieces 22a and 24a at both left and right ends. Further, the front end piece 44 is in contact with the left and right side walls 22 and 24 at a contact portion 44c which is the left and right end sides of the upper end portion 44a. Thereby, it can prevent that the cover part 40 is opened unintentionally. In addition, the non-contact part 44d which is the left and right end sides of the lower end part 44b is not in contact with the left and right side walls 22 and 24 and is separated. In the vertical direction, the length of the contact portion 44c is shorter than the length of the non-contact portion 44d.

  On the other hand, in a situation where the lid portion 40 should be opened, for example, it may be considered that a finger or the like is pushed between the front wall 26 and the lid portion 40 or between the lid portion 40 and the left and right side walls 22 and 24 for opening. However, it may not open smoothly due to the rigidity of the packaging container 10.

  Next, a method for opening the lid 40 of the packaging container 10 will be described. As shown in FIGS. 1, 3, and 5, when the lid portion 40 is closed, the protruding pieces 56 and 66 and a part of the folding lines 54 and 64 are exposed in the escape portion 42 a. From this state, as shown in FIG. 6, the user hooks the thumb on the protruding pieces 56 and 66 and pulls the left and right side walls 22 and 24 in the left-right direction. In FIG. 6, the lid 40 has already been opened with priority given to ease of viewing. As a result, the left and right side walls 22 and 24 are bent to the outside of the packaging container 10 along folding lines 50 and 60, respectively. Thereby, the upper end sides of the left and right side walls 22 and 24 are bent at the upper ends of the folding lines 50 and 60. Accordingly, the left and right upper end pieces 22a and 24a are bent at folding lines 54 and 64 and folding lines 52 and 62, respectively. The left and right upper end pieces 22a and 24a are lifted upward from the upper end of the peripheral wall portion 20 at the positions where the folding lines 52 and 62 are disposed. Thereby, as shown in FIG. 7, the lid body 42 disposed above the left and right upper end pieces 22a, 24a is lifted. As a result, the contact portion 44c of the front end piece 44 is moved above the left and right side walls 22 and 24, and the front end piece 44 and the left and right side walls 22 and 24 are separated from each other. Further, the left and right upper end pieces 22a and 24a are bent to widen the gap between the left and right upper end pieces 22a and 24a and the inner wall surface 26a. As a result, the front end piece 44 is released from the state of being sandwiched between the left and right upper end pieces 22a and 24a and the inner wall surface 26a. According to this configuration, the lid 40 can be easily opened.

  Since the protruding pieces 56 and 66 are arranged in the packaging container 10, the user can easily bend the left and right side walls 22 and 24 along the folding lines 50 and 60. Furthermore, since the escape portion 42 a is arranged on the lid main body 42, it is easy to put a finger on the protruding pieces 56 and 66.

  The folding line 50 extends to an intermediate position in the vertical direction of the right side wall 24. The lower end of the folding line 50 is preferably located between the upper end of the right side wall 24 and a position that is two-thirds from the center position in the vertical direction. According to this structure, it can suppress that the rigidity of the right side wall 24 falls by the folding line 50. FIG. The length of the folding line 50 can be set according to the material of the packaging container 10 and the intended use. For example, the lower end of the folding line 50 may be located at the lower end of the right side wall 24. The same applies to the folding line 60. The angle of the folding line 50 with respect to the upper end side of the right side wall 24 is 55 degrees, and the angle of the folding line 52 with respect to the upper end side of the right side wall 24 is 45 degrees, but the angle is not limited to this. The same applies to the folding lines 60 and 62.

  Further, in the front end piece 44, the length of the contact portion 44c is shorter than the length of the non-contact portion 44d in the vertical direction. According to this configuration, when the left and right upper end pieces 22a and 24a are bent, the contact between the contact portion 44c and the left and right side walls 22 and 24 can be easily released.

  As mentioned above, although embodiment of this invention was described in detail, these are only illustrations and do not limit a claim. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

(1) The packaging container 10 of the above-described embodiment has a rectangular parallelepiped shape. However, the shape of the packaging container 10 is not limited to a rectangular parallelepiped shape, and may be a cubic shape, and the left and right side walls 22 and 24 may not be arranged in parallel.

(2) The shape of the escape portion 42a is not limited to a semicircular shape, and may be other shapes such as a quadrangle and a triangle. In other words, the lid main body 42 may be shaped so as to be separated from the protruding pieces 56 and 66 so that a finger or the like can be easily hooked on the protruding pieces 56 and 66.

(3) The upper end of the folding line 50 is in contact with the right end of the folding line 52. However, the upper end of the folding line 50 and the right end of the folding line 52 may be shifted in the front-rear direction. In this case, when the right and left side walls 22 and 24 are pulled in the left and right direction and the right side wall 24 is bent at the folding line 50, the upper end piece 24a may be arranged at a position where the upper end piece 24a is bent at the folding line 52. The same applies to the folding lines 60 and 62.

  The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

10: packaging container 20: peripheral wall portion 22: left side wall 22a: upper end piece 24: right side wall 24a: upper end piece 26: front wall 30: bottom wall 40: lid portion 42: lid main body 42a: escape portion 44: front end piece 44c: Contact part 44d: Non-contact part 50, 52, 54: Folding curve 56: Projection piece 60, 62, 64: Folding curve 66: Projection piece

Claims (5)

The bottom wall,
Surrounding the bottom wall, a peripheral wall having a front wall, a rear wall, and left and right side walls;
A lid portion rotatably connected to the rear wall,
The lid portion includes a lid main body that covers the opening of the peripheral wall portion, and a front end piece that extends from the rear wall side end portion of the lid main body along the front wall to the inside of the peripheral wall portion,
Each of the left and right side walls includes an upper end piece extending from the upper end along the surface on the peripheral wall portion side of the lid body.
Each of the left and right side walls can be bent toward the outside in a first folding line extending from the back side to the front side, extending from the upper end to the lower end,
The left upper end piece includes a second fold line extending from the front side toward the back side toward the upper end of the first fold line on the left side wall from the end opposite to the left side wall, and the back side of the second fold line A third folding line extending in the left-right direction on the side, and
The right upper end piece includes a fourth fold curve extending from the front side toward the back side toward the upper end of the first fold line on the right side wall from the end opposite to the right side wall, and the back side of the fourth fold line. A fifth folding line extending in the left-right direction on the side, and
When the left side wall is bent outward at the first folding line, the left upper end piece protrudes from the peripheral wall portion to the lid body side by being bent at the second folding curve and the third folding curve.
The right upper end piece protrudes from the peripheral wall portion to the lid body side by being bent at the fourth and fifth folding curves when the right side wall is bent outward at the first folding curve. .   The packaging container according to claim 1, wherein the left and right side walls each include a protruding piece that protrudes upward from the vicinity of the upper end of the first folding line.   The packaging container according to claim 2, wherein the left and right end edges of the lid body each have a relief shape that is separated from each of the protruding pieces.   The packaging container according to any one of claims 1 to 3, wherein a lower end of the first folding line is located at an intermediate position in the vertical direction of the left and right side walls. The front end piece includes a contact part that contacts the left and right side walls on the left and right side edges on the upper end side, and a non-contact part that is spaced from the left and right side walls below the contact part,
The packaging container according to any one of claims 1 to 4, wherein a vertical length of the contact portion is shorter than a vertical length of the non-contact portion.

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