JP2016210450A - container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container in which one end side of a peripheral wall can be opened, which improves workability for storing and workability for extracting articles.SOLUTION: A container (an envelope 10) comprises a cutting part 48 for opening which extends from one side toward the other side in a lateral direction of a first wall part 20 of a peripheral wall 11, and also comprises a hinge folding part 48 which extends from one side toward the other side in a lateral direction of a second wall part 33 opposing to the first wall part 20, where the first end part side of the peripheral wall 11 can be opened by folding the second wall part 33 along the hinge folding part 48. A hinge folding part 50 comprises a main folding line 51 extending along the cutting part 48 for opening and a pair of sub folding lines 52a and 52b extending respectively from both ends of the main folding line 51 toward a side part (a folding line 31) in the lateral direction of the second wall part 33.SELECTED DRAWING: Figure 1

Description

  The present invention relates to containers such as envelopes and packaging boxes.

  In patent document 1, in order to open the one end side of the surrounding wall which consists of a some wall part, while providing the cutting part in the front wall part and side wall part which comprise a surrounding wall, the hinge bending part was provided in the rear wall part. A packaging container is disclosed. The hinge bent portion includes a pair of folding lines extending along the cut portion of the front wall portion. In addition, a pair of first cutting lines are provided at both ends of the pair of folding lines, one end side being continuous with the folding line and the other end side intersecting each other. Moreover, the 2nd cutting part extended from the intersection of a pair of 1st cutting lines to the edge part of the cutting part of a side wall part is provided.

  Since the hinge bending part of patent document 1 is provided with a pair of folding lines extended in parallel, the opening part which consists of a cutting part can be largely open | released by rotating the cover part of one end side to the back side. However, the rear wall portion has an elastic restoring force due to the rigidity (waist) of the forming material (paper). Therefore, unless the lid portion is held with a finger, the opening is closed by the lid. For this reason, there is room for improvement in consideration of workability for accommodating articles inside and workability for taking out articles inside.

JP 2014-5027 A

  This invention makes it a subject to improve the accommodation workability | operativity of the articles | goods in the container which can open the one end side of a surrounding wall, and taking-out workability | operativity.

  The present invention includes a peripheral wall composed of a plurality of wall portions, and provides an opening cutting portion from one side portion to the other side portion of the first wall portion of the peripheral wall, and faces the first wall portion. A hinge bent portion is provided from one side portion to the other side portion of the second wall portion in the lateral direction of the peripheral wall, and the second wall portion is bent along the hinge bent portion, whereby the first vertical portion of the peripheral wall is provided. An end side can be opened, and the hinge bent portion includes a main fold curve extending in a lateral direction along the opening cutting portion, and a lateral side of the second wall portion from both ends of the main fold curve. A container provided with a pair of minor folding curves each extending over a portion. Here, the opening cutting portion includes both a configuration in which the first wall portion is cut (divided) in advance and a configuration in which a breakable line such as a zipper is provided in the first wall portion.

  When the second wall portion of the container is bent along the hinge bent portion, the second wall portion is bent along the main fold curve and each pair of sub-fold curves. Accordingly, the container is in a state where the first end side (for example, the upper side) is opened with the opening cutting portion of the first wall portion as a boundary. In a state of being bent along the hinge bent portion, the first sub-fold curve located on the second end side (for example, the lower side) in the vertical direction of the second wall portion is the first of the pair of sub-fold curves. A second minor folding line located on the wall portion side and located on the first end portion side in the longitudinal direction of the second wall portion is located away from the first wall portion. Here, when comparing the width of the first wall portion provided with the opening cutting portion and the bending length of the second wall portion obtained by combining the main folding curve and the pair of first sub folding curves, The bending length is longer. Due to this dimensional difference, when the second wall portion is bent along the hinge bent portion, the second wall portion is deformed in a direction away from the first wall portion. Therefore, the opening area of the opening part formed by the opening cutting part can be made larger than the cross-sectional area of the other part of the peripheral wall. Further, the second wall portion can be bent into a substantially U shape by the second sub folding curve. Therefore, the workability when storing the article in the container can be improved, and the workability when taking out the article from the container can be improved.

  A portion of the second wall portion located between the pair of subfolding curves is a non-fixed region that is not fixed to the other wall portions constituting the peripheral wall. According to this aspect, by bending the second wall portion, it is possible to reliably position the one located on the first end portion side of the pair of sub-fold curves away from the first wall portion. Therefore, the opening formed by the opening cutting portion can be widely opened.

  The first wall portion and the second wall portion are located at a wider interval in the intermediate portion than in the lateral side portions. According to this aspect, the main folding curve and the minor folding curve of the hinge bent portion are not positioned on the plane. Therefore, when the second wall portion is bent along the hinge bent portion, it is possible to make a difference in the timing at which the second wall portion starts to be bent along the main folding curve and the sub folding curve. Specifically, at the initial stage of starting to bend along the hinge bent portion, the second wall portion begins to bend along the main folding curve, and the second wall portion is elastically deformed in a direction approaching the first wall portion. Thereafter, when the second wall portion exceeds a specific bending state, the second wall portion starts to bend along the subfolding curve, and the second wall portion is elastically deformed in a direction away from the first wall portion. Then, in the non-folded state of the minor folding curve, a restoring force acts so that the second wall portion extends flat (the lid portion is closed), and in the minor folding curve state, the second wall portion is flat. Resistive force acts so as to prevent the lid from extending (maintaining the lid portion in an open state). Therefore, since the opening workability | operativity and closing workability | operativity of a container can be improved, the accommodation workability | operativity and taking-out workability | operativity of goods can further be improved.

  Specifically, at least one end wall in the longitudinal direction of the peripheral wall is provided with an end wall that positions an intermediate portion between the first wall portion and the second wall portion with a space therebetween. According to this aspect, the first wall portion and the second wall portion can be reliably positioned at a predetermined interval.

  In the container of the present invention, when the second end portion of the peripheral wall is bent along the hinge bent portion, the second wall portion is deformed to the side away from the first wall portion. Therefore, the opening area of the opening formed by the opening cutting portion can be expanded from the cross-sectional area of the other part of the peripheral wall. Therefore, the accommodation workability | operativity of goods and taking-out workability | operativity can be improved.

The perspective view which shows the envelope which is a container of 1st Embodiment of this invention. The perspective view which shows the front side of the envelope of FIG. The perspective view which shows the opening state of the envelope of FIG. The top view which shows the unsealed state of the envelope of FIG. FIG. 4B is a sectional view taken along line AA in FIG. 4A. The top view which shows the blank of the envelope of FIG. The perspective view which shows the envelope of 2nd Embodiment. The perspective view which shows the envelope of 3rd Embodiment. The perspective view which shows the opening state of the envelope of FIG. The top view which shows the blank of the envelope of FIG. The top view which shows the hinge bending part of 1st Embodiment. The top view which shows the hinge bending part of 3rd Embodiment. The top view which shows the modification of a hinge bending part. The top view which shows the other modification of a hinge bending part. The top view which shows the other modification of a hinge bending part. The top view which shows the other modification of a hinge bending part. The perspective view which shows the packaging box which is a modification of a container.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1 to 5 show an envelope 10 which is an example of a container according to the first embodiment. As shown in FIGS. 1 and 2, the envelope 10 is provided with an opening cutting portion 48 in the front wall portion (first wall portion) 20 of the peripheral wall 11, and a rear wall portion (first wall) facing the front wall portion 20. The hinge folding part 50 is provided in the (2 wall part) 33. In the envelope 10, the upper cut portion 48 (the first end portion side) of the opening cutting portion 48 and the hinge bent portion 50 in the peripheral wall 11 constitutes an openable lid portion 12. As shown in FIG. 3, the rear wall portion 33 is bent along the hinge bent portion 50 and the lid portion 12 is rotated, so that the opening portion 13 of the peripheral wall 11 can be maintained. 4A and 4B, the rear wall 33 is deformed in a direction away from the front wall 20 by opening the lid 12, and the opening area of the opening 13 can be increased.

  Specifically, the envelope 10 is formed by punching a paper cardboard sheet as a single blank shown in FIG. 5 by a known paper punching device. The corrugated cardboard sheet has a configuration in which wavy shin is arranged between the front liner and the back liner. In FIG. 5, an alternate long and short dash line is a general ruled line formed by putting a ruled line from the back liner side so as to compress the wall thickness. The broken line is a half-cut line formed by inserting a blade from the back liner side so as not to cut the front liner. The solid line in the blank is a cutting line formed by inserting a blade from the back liner to the front liner, and a shape line (edge) by punching.

  Referring to FIGS. 1 to 3 together with FIG. 5, the envelope 10 includes a peripheral wall 11 including a plurality of (two in this embodiment) wall portions 20 and 33. The peripheral wall 11 includes a front wall portion 20 and a rear wall portion 33 each having a substantially rectangular shape. The front wall portion 20 and the rear wall portion 33 are attached (fixed) on both sides in the lateral direction X (left-right direction in FIG. 5) with a vinyl acetate emulsion adhesive or the like. The envelope 10 also includes a bottom wall portion (first end wall) 38 at the lower end of the peripheral wall 11, and a top wall portion (second end wall) 43 at the upper end of the peripheral wall 11. By the bottom wall portion 38 and the top wall portion 43, the front wall portion 20 and the rear wall portion 33 are positioned at a predetermined interval.

  As shown in FIGS. 2 and 5, the front wall portion 20 includes a main body side front wall portion 21 </ b> A located on the lower side and a lid side front wall portion 21 </ b> B located on the upper side. As shown in FIG. 2, the main body side front wall portion 21A and the lid side front wall portion 21B are substantially located on the same plane. Referring to the blank of FIG. 5, the main body side front wall portion 21 </ b> A and the lid side front wall portion 21 </ b> B are arranged in the vertical direction Y through the bottom wall portion 38, the rear wall portion 33, and the top wall portion 43 in order from the lower side. It is continuous.

  As shown in FIGS. 3 and 5, the upper end portion 22A (lower end in FIG. 5) of the main body side front wall portion 21A extends linearly from one side portion to the other side portion. The lower end portion 22B (upper end in FIG. 5) of the lid side front wall portion 21B has a shape including a portion that engages with the upper end portion 22A of the main body side front wall portion 21A. Specifically, the lid-side front wall portion 21B is formed on the inner surface side of the pair of first engagement protrusions 23 and 23 that are engaged (overlapped) with the outer surface side of the main body-side front wall portion 21A and the main body-side front wall portion 21A. And a second engaging protrusion 24 to be engaged. The first engaging protrusion 23 has a substantially triangular shape, and is formed at a line-symmetrical position on the side of the lid-side front wall portion 21B. The second engagement protrusion 24 has a quadrangular shape and is formed at the center between the pair of first engagement protrusions 23, 23. The trough 25 between the first engagement protrusion 23 and the second engagement protrusion 24 faces the upper end 22A of the main body side front wall 21A with a clearance that does not allow dust to enter.

  The main body side front wall portion 21A and the lid side front wall portion 21B include a front side separation portion 26A, 26B located at the center of the lateral width, and a front side inclined portion 27A located outside the front side separation portions 26A, 26B in the lateral direction X, respectively. 27B and front paste margin portions 28A and 28B located on the outer sides in the lateral direction X of the front inclined portions 27A and 27B, respectively. The front side separation portions 26A and 26B and the front side inclined portions 27A and 27B are continuous via a folding line 30 extending in the vertical direction Y. The front inclined portions 27 </ b> A and 27 </ b> B and the front adhesive margin portions 28 </ b> A and 28 </ b> B are continuous via a folding line 31 that extends parallel to the folding line 30. These folding lines 30 and 31 are made of lead rules with good bendability in which cutting lines are provided at predetermined intervals on general-purpose ruled lines.

  As shown in FIGS. 2 and 3, the first engaging protrusions 23 and 23 are engaged with the outer surface side of the main body front side separating portion 26 </ b> A and the main body front side inclined portion 27 </ b> A defined by the folding line 30. Further, the second engagement protrusion 24 is engaged with the central inner surface side of the main body front side separation portion 26A. Thereby, since the main body side front wall portion 21A is sandwiched between the engagement protrusions 23 and 24, the engagement (closed) state of the lid portion 12 can be reliably maintained.

  As shown in FIGS. 1 and 5, the rear wall portion 33 has a substantially rectangular shape having the same height as the total height of the front wall portion 20 including the main body side front wall portion 21A and the lid side front wall portion 21B. As with the front wall portion 20, the rear wall portion 33 includes a rear side separation portion 34 located at the center of the lateral width, a rear side inclination portion 35 located outside the lateral direction X of the rear side separation portion 34, and a rear side And a rear adhesive margin portion 36 located outside the inclined portion 35 in the lateral direction X. The rear side separation portion 34 and the pair of rear side inclined portions 35, 35 are continuous via the folding line 30 extending in the vertical direction Y. The rear-side inclined portion 35 and the rear-side glue margin portion 36 are continuous through the extended folding line 31.

  The front side separation portions 26A and 26B and the rear side separation portion 34 correspond to the front and rear. The front inclined portions 27A and 27B and the rear inclined portion 35 correspond to the front and rear. The front adhesive margins 28A and 28B and the rear adhesive margin 36 correspond to the front and rear. The front adhesive margins 28A and 28B and the rear adhesive margin 36 are attached by an adhesive. Moreover, in the blank state shown in FIG. 5, each separation | spacing part 26A, 26B, 34 respond | corresponds up and down. Moreover, each inclination part 27A, 27B, 35 respond | corresponds up and down. In addition, each margin part 28A, 28B, 36 corresponds to the top and bottom.

  As shown in FIG. 5, the bottom wall portion 38 is formed between the main body side front wall portion 21 </ b> A and the rear wall portion 33. More specifically, the bottom wall portion 38 is provided between the main body front side separation portion 26A and the rear side separation portion 34 and between the main body front side inclination portion 27A and the rear side inclination portion 35. The bottom wall portion 38 is continuous with the main body front side separation portion 26 </ b> A and the rear side separation portion 34 via a first folding line 39. The bottom wall portion 38 is continuous with the main body front side inclined portion 27 </ b> A and the rear side inclined portion 35 via the second folding line 40.

  The first folding lines 39, 39 are made of lead rules, and are provided from one folding line 30 to the other folding line 30 so as to extend in a direction orthogonal to the folding line 30. The second folding lines 40, 40 are made of general-purpose ruled lines, and are inclined so that one end is continuous with the end of the first folding line 39 and the other ends intersect each other. The other ends of the second folding curves 40, 40 intersect at the intersection of a folding line 31 with a center line (not shown) between the pair of first folding curves 39, 39.

  Between the main body front side margin portion 28A and the rear side margin portion 36 located on both sides of the bottom wall portion 38, a third folding line 41 made of a general ruled line is provided. A folding line 30 extending from the main body side front wall portion 21A through the rear wall portion 33 to the lid side front wall portion 21B passes through the bottom wall portion 38. The folding line 30 made up of lead rules is configured such that no cutting line is located in the region within the bottom wall 38.

  As shown in FIGS. 2 and 5, the top wall 43 is formed between the lid-side front wall 21 </ b> B and the rear wall 33. More specifically, the top wall 43 is provided between the lid front side separation part 26B and the rear side separation part 34, and between the lid front side inclination part 27B and the rear side inclination part 35. The top wall portion 43 is continuous with the lid front side separation portion 26B and the rear side separation portion 34 via the first folding line 44, respectively. Further, the top wall portion 43 is continuous with the lid front side inclined portion 27B and the rear side inclined portion 35 via the second folding line 45, respectively.

  The first folding lines 44 and 44 are formed of lead rules, and are provided from one folding line 30 to the other folding line 30 so as to extend in a direction orthogonal to the folding line 30. The second folding lines 45, 45 are made of general-purpose ruled lines, and are inclined so that one end is continuous with the end of the first folding line 44 and the other end intersects the folding line 31. In addition, a third folding line 46 formed of a general ruled line is provided between the lid front side margin 28B and the rear side margin 36 which are both ends of the top wall 43. The folding line 30 passing through the top wall portion 43 is configured such that the cutting line is not located in the region within the top wall portion 43.

  Thus, the front wall portion 20 and the rear wall portion 33 are continuous via the bottom wall portion 38 and the top wall portion 43 that are formed in a flat hexagonal shape in plan view. As shown in FIG. 5, the width W <b> 1 of the bottom wall portion 38 and the width W <b> 2 of the top wall portion 43 corresponding to the dimension in the thickness direction of the envelope 10 are the same. The front side separation portions 26A and 26B and the rear side separation portion 34 are positioned in parallel to each other with a predetermined interval. The intervals between the front inclined portions 27A and 27B and the rear inclined portion 35 are gradually narrowed toward the outside in the lateral direction X. In other words, the front wall portion 20 and the rear wall portion 33 that face each other are positioned at a wider interval in the middle portion than in the both side portions in the lateral direction X.

  As shown in FIGS. 2 and 3, in the envelope 10, the upper end portion 22 </ b> A of the main body side front wall portion 21 </ b> A and the lower end portion 22 </ b> B of the lid side front wall portion 21 </ b> B serve as the opening cutting portion 48. That is, the opening cutting portion 48 of the first embodiment has a configuration in which the front wall portion 20 is cut (divided) in advance. The opening cutting portion 48 is provided so as to extend from one side portion of the lateral direction X to the other side portion in the front wall portion 20.

  As shown in FIGS. 1 and 5, the hinge bent portion 50 rotates the lid portion 12 on the upper side of the hinge bent portion 50 by bending the rear wall portion 33. The hinge bent portion 50 includes one main fold curve 51 extending in the lateral direction X along the opening cutting portion 48 and two ends of the main fold curve 51 from the both sides of the rear wall portion 33 in the lateral direction X. In addition, it includes a pair of sub-folding curves 52a and 52b extending in a branched manner. The main folding line 51 is a half-cut line, and is provided from one folding line 30 to the other folding line 30 so as to extend in a direction orthogonal to the folding line 30. The pair of sub-fold curves 52a and 52b are half cut lines and are side portions of the rear wall portion 33 from the intersection of the main fold curve 51 and the fold curve 30 so as to extend obliquely with respect to the main fold curve 51. It is provided over the folding line 31. The sub folding curves 52 a and 52 b of the present embodiment include extended portions 53 a and 53 b extending from the intersection with the folding curve 31 to the side portion of the rear wall portion 33. The extending portions 53 a and 53 b are provided in the rear glue margin 36 so as to extend in a direction orthogonal to the folding line 31.

  More specifically, the main folding curve 51 is positioned on the bottom wall 38 side (opposite the lid 12) with respect to the edge of the opening cutting portion 48 (the upper end 22A of the main body side front wall 21A). Is provided. Of the pair of sub-fold curves 52a and 52b, the first sub-fold curve 52a extending toward the bottom wall portion 38 is inclined further toward the bottom wall portion 38 than the main fold curve 51. Of the sub folding curves 52a and 52b, the second sub folding curve 52b extending toward the top wall 43 is inclined toward the vicinity of the upper end 22A of the main body side front wall 21A. The outer end in the lateral direction X of the second sub-fold curve 52b of the present embodiment coincides with the upper end portion 22A. As shown in FIGS. 2 and 3, the extending portions 53 a and 53 b of the pair of sub-fold curves 52 a and 52 b are provided in the rear glue margin 36. The portion located between the extending portions 53a and 53b of the rear glue margin 36 is not adhered to the front glue margin 28A of the main body, and can be separated from the front wall 20 (non-fixed portion ( (Non-adhesion region) 54.

  As shown in FIG. 3, the envelope 10 made in this way can rotate the upper lid portion 12 to the back side by folding the rear wall portion 33 along the hinge bent portion 50. And the opening part 13 of the surrounding wall 11 which consists of the upper end part 22A of the main body side front wall part 21A, the main fold curve 51, and the 1st subfold curve 52a can be open | released.

  Specifically, when the rear wall portion 33 is bent along the hinge bent portion 50, the rear wall portion 33 is bent along the main folding curve 51 and the pair of sub folding curves 52a and 52b. Thereby, the envelope 10 is in a state in which the lid portion 12 is opened. Since the non-adhered portion 54 is formed between the sub-fold curves 52a and 52b, the first sub-fold curve 52a is the front wall portion of the pair of sub-fold curves 52a and 52b in a state of being bent along the hinge bent portion 50. The second auxiliary folding line 52b is located away from the front wall 20 at the 20th side. Therefore, as shown in FIGS. 4A and 4B, when the rear wall portion 33 is valley-folded, the lid portion 12 can be folded into a substantially U shape with respect to the peripheral wall 11.

  Further, as shown in FIG. 5, the folding of the rear wall portion 33 is made by combining the horizontal width H of the front wall portion 20 provided with the opening cutting portion 48, the main folding curve 51 and the pair of first sub folding curves 52a and 52a. Comparing the bending length (S1 + 2S2 + 2S3), the bending length of the rear wall 33 is longer. As shown in FIGS. 4A and 4B, when the rear wall portion 33 is bent along the hinge bent portion 50 due to the dimensional difference, the rear wall portion 33 is deformed in a direction away from the front wall portion 20. Therefore, the opening area of the opening 13 formed by the opening cutting portion 48 can be made larger than the cross-sectional area of the other part of the peripheral wall 11.

  As described above, the envelope 10 of the present embodiment can greatly open the opening 13 of the envelope 10 by valley-folding the rear wall portion 33, and can widen the opening area of the opening 13 by the hinge bent portion 50. it can. Therefore, the workability when the article is accommodated in the envelope 10 can be improved, and the workability when the article is taken out from the envelope 10 can be improved. And since the envelope 10 has arrange | positioned the intermediate | middle part of the front wall part 20 and the rear wall part 33 at intervals, the obstruction | occlusion position of the cover part 12 shown in FIG. 2 and the open position of the cover part 12 shown in FIG. 4B A switching point that changes the direction in which the restoring force acts can be provided within the rotation angle range between the two.

  Specifically, the front wall portion 20 and the rear wall portion 33 are arranged to face each other with a wider space at the middle portion than at both side portions in the lateral direction X. Therefore, the main folding curve 51 and the minor folding curves 52a and 52b of the hinge folding part 50 are not located on the same plane. Therefore, when the rear wall portion 33 is bent along the hinge bent portion 50, a difference is generated between the timing at which the folding starts along the main folding curve 51 and the timing at which the folding starts along the minor folding curves 52a and 52b. be able to.

  When the rear wall 33 is started to be bent, the rear wall 33 starts to bend along the main folding curve 51, and the rear wall 33 is elastically deformed in a direction approaching the front wall 20. Thereafter, when the rear wall portion 33 exceeds a specific bending state (a constant rotational angle position), the rear wall portion 33 starts to bend along the sub-folding curves 52a and 52b. As a result, the rear wall 33 is elastically deformed in a direction away from the front wall 20. In the unfolded state of the sub-folding curves 52a and 52b, a restoring force acts so that the entire rear wall portion 33 extends flatly (the lid portion is closed) by the rigidity (waist) of the rear inclined portions 35 and 35. On the contrary, in the bent state of the minor folding curves 52a and 52b, a resistance force acts so as to prevent the rear wall portion 33 from extending flat (maintaining the lid portion in an open state).

  That is, in the closed state of the lid portion 12, a force opposite to the rotational direction for opening the lid portion 12 acts. When the lid 12 is rotated in the opening direction up to a certain rotational angle position against this resistance force, a force acts so that the lid 12 rotates in the opening direction. On the contrary, in the open state of the lid part 12, a force opposite to the rotational direction for closing the lid part 12 acts. When the lid portion 12 is rotated in the closing direction to a certain rotational angle position against this resistance force, a force acts so that the lid portion 12 rotates in the closing direction. Therefore, since the opening workability | operativity and closing workability | operativity of the envelope 10 can be improved, the accommodation workability | operativity and taking-out workability | operativity of an article can further be improved.

(Second Embodiment)
FIG. 6 shows the envelope 10 of the second embodiment. In the envelope 10 of the second embodiment, the total length of the peripheral wall 11 is lowered. Also, the lid 12 does not have the second engagement protrusion 24 that engages with the inner surface side of the main body side front wall 21A, and extends from one main body front side inclined portion 27A, 27A to the other main body front side inclined portion. The first embodiment differs from the first embodiment in that a first engagement protrusion 23 that engages with the outer surface is provided. The rear wall 33 facing the opening cutting portion 48 composed of the upper end portion 22A of the main body side front wall portion 21A and the lower end portion 22B of the lid side front wall portion 21B is hinge-folded as in the first embodiment. A portion 50 is provided.

  The envelope 10 of the second embodiment thus configured can obtain the same operations and effects as those of the first embodiment. Moreover, since the 2nd engaging protrusion 24 engaged with the inner surface side of 21 A of main body side front wall parts is not provided, the workability | operativity at the time of obstruct | occluding the cover part 12 can be improved. Moreover, in the closed state of the cover part 12, since the force of the closing direction acts by the back side inclination part 35 and the subfolding curves 52a and 52b of the hinge bending part 50, a sealing state can be maintained reliably.

(Third embodiment)
7 to 9 show the envelope 10 of the third embodiment. In the third embodiment, the first front wall constituting portion 62A and the second front wall constituting portion 62B that constitute the front wall portion 20 that is the first wall portion are arranged beside the rear wall portion 33 that is the second wall portion ( In FIG. 9, they are connected in the left-right direction. Moreover, the cutting part 48 for opening is comprised by the fracture | rupture part which is not opened in the sealing state shown in FIG. 7, and fractures | ruptures at the time of opening. That is, in the third embodiment, the front wall portion 20 is connected to the left and right with respect to the rear wall portion 33, and the opening cutting portion 48 is cut at the time of opening. Is different.

  Specifically, as shown in FIGS. 7 and 9, the envelope 10 includes a rectangular rear wall portion 33 in the center of the rear side. The rear wall portion 33 includes the rear side separation portion 34 and the rear side inclined portion 35 as in the first embodiment, but does not include the rear side margin portion 36. In FIG. 9, the rear wall inclined portions 35, 35 located at the left and right side ends are provided with a front wall portion 20 through a folding line 60 formed of a general ruled line extending in parallel with the folding line 30. The first front wall constituting portion 62A and the second front wall constituting portion 62B are connected in series.

  The first front wall constituting portion 62A is continuous with one side portion (right side in FIG. 9) of the rear wall portion 33, and the second front wall constituting portion 62B is continuous with the other side portion (left side in FIG. 9) of the rear wall portion 33. doing. Each of the front wall constituting parts 62A and 62B includes front side separating parts 63A and 63B and front side inclined parts 64A and 64B. Further, in FIG. 9, paste margin portions 65A and 65B are provided on the left and right side portions of the front side separation portions 63A and 63B as shown with light ink. As shown in FIG. 7, the first front wall constituting portion 62A and the second front wall constituting portion 62B are bent with respect to the rear wall portion 33, and the adhesive margin portions 65A and 65B are adhered by an adhesive, thereby substantially One flat front wall portion 20 is formed.

  As shown in FIG. 9, the first bottom wall constituting portions 67A and 67B are connected to the lower ends of the first front wall constituting portion 62A and the second front wall constituting portion 62B. A second bottom wall portion 68 is connected to the lower end of the rear wall portion 33. The first bottom wall constituting portion 67A is connected to the first front wall constituting portion 62A via the first folding curve 39 and the second folding curve 40. Similarly, the first bottom wall constituting portion 67B is connected to the second front wall constituting portion 62B via the first folding curve 39 and the second folding curve 40. Paste margin portions 65A and 65B are extended from these first bottom wall constituting portions 67A and 67B. The first bottom wall constituting portions 67A and 67B constitute one sheet of the first bottom wall portion 67 by bonding the adhesive margin portions 65A and 65B with an adhesive. The second bottom wall portion 68 is connected to the rear wall portion 33 via the first folding curve 39 and the pair of second folding curves 40, 40.

  As shown in FIGS. 7 and 9, first top wall constituting portions 70A and 70B are connected to upper ends of the first front wall constituting portion 62A and the second front wall constituting portion 62B. A second top wall 71 is connected to the upper end of the rear wall 33. The first ceiling wall forming portion 70A is connected to the first front wall forming portion 62A via the first folding curve 44 and the second folding curve 45. Similarly, the first ceiling wall forming portion 70B is connected to the second front wall forming portion 62B via the first folding curve 44 and the second folding curve 45. Paste margins 65A and 65B are extended from these first ceiling wall constituting portions 70A and 70B. The first ceiling wall constituting portions 70A and 70B constitute one sheet of the first ceiling wall portion 70 by bonding the adhesive margin portions 65A and 65B with an adhesive. The second top wall portion 71 is connected to the rear wall portion 33 via the first folding curve 44 and the pair of second folding curves 45, 45.

  For example, after the first bottom wall portion 67 is folded in the front wall portion 20, the second bottom wall portion 68 is folded in the rear wall portion 33. Thus, the second bottom wall portion 68 is overlapped on the outer surface side of the first bottom wall portion 67 to form a bottom wall portion 38 having a two-layer structure. Similarly, after the first top wall portion 70 is folded in the front wall portion 20, the second top wall portion 71 is folded in the rear wall portion 33. Accordingly, the second ceiling wall portion 71 is overlapped on the outer surface side of the first ceiling wall portion 70 to form the ceiling wall portion 43 having a two-layer structure. The folding order of the first bottom wall portion 67 and the second bottom wall portion 68 and the folding order of the first top wall portion 70 and the second top wall portion 71 can be changed as desired. Further, the sealing of the first bottom wall portion 67 and the second bottom wall portion 68 and the sealing of the first top wall portion 70 and the second top wall portion 71 may be adhered to each other with an adhesive, or an adhesive tape. You may stick by.

  The opening cutting portion 48 is provided so as to extend in the lateral direction X on one (upper) end side in the longitudinal direction Y of the front wall portion 20 including the pair of attached front wall constituting portions 62A and 62B. The opening cutting portion 48 includes a first break line 73A located on the upper end side of the front wall portion 20 and a second break line 73B located on the lower end side of the front wall portion 20. These break lines 73A and 73B extend from one side of the front wall 20 to the other side. Between the break lines 73A and 73B is an opening cutting portion 48 that is separated at the time of opening. The upper first breaking line 73 </ b> A includes an arc-shaped first cutting portion 74 that is curved upward, and a linear second cutting portion 75 that extends in the lateral direction X. The lower second breaking line 73 </ b> B includes an arc-shaped first cutting portion 74 that is curved downward, and a linear second cutting portion 75 that extends in the lateral direction X. The first cutting part 74 and the second cutting part 75 are provided with an interval from one end (left side in FIG. 7) to the other end (right side in FIG. 7) of the front wall part 20 alternately. Further, the opening cutting section 48 includes a cutting line 76 extending in the orthogonal direction from one breaking line 73A to the other breaking line 73B along the folding line 60.

  As shown in FIGS. 8 and 9, the rear wall portion 33 is provided with a hinge bent portion 50 from one side portion to the other side portion so as to face the opening cutting portion 48. The hinge bent portion 50 includes one main folding curve 51 and a pair of sub folding curves 52 a and 52 b extending bifurcated from both ends of the main folding curve 51. The main fold line 51 is provided at the height between the first rupture line 73A and the second rupture line 73B in the rear wall portion 33 so as to extend in the orthogonal direction from one fold line 30 to the other fold line 30. It has been. The sub folding curves 52 a and 52 b are provided so as to extend from the end of the main folding curve 51 to the vicinity of both ends of the cutting line 76 on the folding curve 60. In addition, the sub folding curves 52a and 52b of the hinge bending part 50 of 3rd Embodiment consist of general purpose ruled lines. Moreover, the minor folding lines 52a and 52b of the third embodiment do not include the extending portions 53a and 53b. Further, a cutting line 77 extending along the folding line 60 is provided between the outer ends of the sub folding lines 52 a and 52 b and both ends of the cutting line 76.

  The envelope 10 according to the third embodiment accommodates an article in the peripheral wall 11 with the bottom wall portion 38 closed and the top wall portion 43 not closed. Thereafter, as shown in FIG. 7, the top wall 43 is closed and sealed. When opening the envelope 10, first, one end of the opening cutting portion 48 is gripped and pulled toward the other end side. Thereby, the rear wall portion 33 is partially broken along the first break line 73A and the second break line 73B. Then, as shown in FIG. 8, by folding the rear wall portion 33 along the hinge bent portion 50, the upper lid portion 12 of the opening cutting portion 48 can be rotated to open the opening portion 13. . And the envelope 10 of 3rd Embodiment made in this way can acquire the effect | action and effect similar to 1st Embodiment.

  In addition, the container of this invention is not limited to the structure of the said embodiment, A various change is possible.

  In the first embodiment, as shown in FIG. 10A, the hinge bent portion 50 is composed of a linear main fold curve 51 and sub-fold curves 52a and 52b including extending portions 53a and 53b, which is a third embodiment. In the form, as shown in FIG. 10B, the linear main fold curve 51 and the minor fold curves 52 a and 52 b not provided with the extending portions 53 a and 53 b are used, but various modifications are possible. For example, as shown in FIG. 10C, the main folding curve 51 of the hinge folding section 50 may be constituted by a pair of folding sections 51a and 51b made of straight lines. Moreover, as shown to FIG. 10D, you may comprise the main folding curve 51 by a circular arc-shaped curve. Moreover, as shown to FIG. 10E, you may comprise the subfolding curves 52a and 52b of the hinge bending part 50 by a circular arc-shaped curve. Further, as shown in FIG. 10F, the sub-fold curves 52a and 52b may have a configuration in which one 52b is a straight line and the other 52a is provided with an extending portion 53a. In this case, the sub-fold curve 52 b made of a straight line may be collinear with the main fold curve 51. Further, the main folding curve 51 and the minor folding curves 52a and 52b are not limited to a vertically and laterally symmetric shape as shown in FIGS. 10A to 10E, and may be vertically asymmetric as shown in FIG. 10F. It may be asymmetric. The combination of straight lines and curves can be changed as desired.

  Further, the main folding curve 51 of the hinge bent portion 50 is configured by a half cut line in the first to third embodiments, but may be configured by a lead rule, a general ruled line, or the like. Similarly, the minor folding lines 52a and 52b of the hinge bent portion 50 are configured by half cut lines in the first and second embodiments, and are configured by general ruled lines in the third embodiment, but are configured by lead rules. Also good. Moreover, you may comprise the subfolding curves 52a and 52b using a different folding curve among a half cut line, a lead rule, and a general ruled line.

  Further, although the width W1 of the bottom wall portion 38 and the width W2 of the top wall portion 43 are the same, they may have different dimensions. Moreover, although the bottom wall part 38 and the top wall part 43 were provided in the both ends of the vertical direction Y of the surrounding wall 11, it is good also as a structure which provides only one of the bottom wall part 38 and the top wall part 43. FIG. Moreover, although the front wall part 20 which is a 1st wall part and the rear wall part 33 which is a 2nd wall part were made into the non-planar shape provided with separation | spacing part 26A, 26B, 34 and inclination part 27A, 27B, 35, it is continuous. It may be a non-planar shape made of curved surfaces. Moreover, the front wall part 20 and the rear wall part 33 are good also as planar shape which is not provided with the inclination part.

  Moreover, in the said embodiment, although the container of this invention was demonstrated taking the envelope 10 provided with a pair of front wall part 20 and the rear wall part 33 as an example, as shown in FIG. 11, it comprises three or more wall parts. The opening cutting portion 48 and the hinge bent portion 50 of the present invention may be applied to the packaging box 80. In this case, the opening cutting portion 48 includes break lines 84 extending from the front wall portion 20 to the rear wall portion 33 in the side wall portions 82 and 82 between the front wall portion 20 and the rear wall portion 33. For example, the breaking line 84 is formed by a plurality of cutting lines that are spaced apart so as to form a perforation. By providing the break line 84 from the end of the opening cutting portion 48 formed in the front wall portion 20 to the end of the hinge bending portion 50 formed in the rear wall portion 33, the hinge folding is performed in the same manner as in the above embodiment. The rear wall portion 33 can be bent along the curved portion 50 to open the upper end of the packaging box 80.

  In the above embodiment, the container is formed by punching a paper cardboard sheet. However, the container may be formed by punching a resin cardboard sheet. Moreover, it is not restricted to a corrugated board sheet, You may form with a single cardboard or a resin sheet.

10 Envelope (container)
11 peripheral wall 12 lid (first end side)
13 opening 20 front wall (first wall)
21A Main body side front wall portion 21B Lid side front wall portion 22A Upper end portion 22B Lower end portion 23 First engagement projection portion 24 Second engagement projection portion 25 Valley portion 26A, 26B Front side separation portion 27A, 27B Front side inclination portion 28A, 28B Front side margin 30 Folding curve 31 Folding curve (side)
33 Rear wall (second wall)
34 Rear side separation part 35 Rear side inclined part 36 Rear side glue margin part 38 Bottom wall part (end wall)
39 First Fold Curve 40 Second Fold Curve 41 Third Fold Curve 43 Top Wall (End Wall)
44 1st folding line 45 2nd folding line 46 3rd folding line 48 Opening cutting part 50 Hinge folding part 51 Main folding line 52a, 52b Sub folding line 53a, 53b Extension part 54 Non-adhering part 60 Folding line 62A, 62B front wall constituting part 63A, 63B front side separating part 64A, 64B front side inclined part 65A, 65B glue margin part 67 first bottom wall part 67A, 67B first bottom wall constituting part 68 second bottom wall part 70 first top wall part 70A, 70B First ceiling wall component 71 Second ceiling wall 73A, 73B Break line 74 First cutting part 75 Second cutting part 76 Cutting line 77 Cutting line 80 Packaging box (container)
82 Side wall (wall)
84 Break line

Claims (4)

Provided with a peripheral wall consisting of a plurality of walls,
A cutting portion for opening is provided from one side portion in the lateral direction of the first wall portion of the peripheral wall to the other side portion, and from one side portion in the lateral direction of the second wall portion of the peripheral wall facing the first wall portion. A hinge bent part is provided over the other side part, and the first end side in the longitudinal direction of the peripheral wall can be opened by bending the second wall part along the hinge bent part.
The hinge folding portion includes a main folding curve extending in the lateral direction along the opening cutting portion, and a pair of sub folding curves extending from both ends of the main folding curve to the lateral side portion of the second wall portion. And a container.   2. The container according to claim 1, wherein a portion of the second wall portion positioned between the pair of subfolding curves is a non-fixed region that is not fixed to the other wall portion constituting the peripheral wall.   The container according to claim 1 or 2, wherein the first wall portion and the second wall portion are located at a wider interval in the middle portion than in the both side portions in the lateral direction.   The container of Claim 3 provided with the end wall which positions the intermediate part of the said 1st wall part and the said 2nd wall part at intervals in the longitudinal direction end of the said surrounding wall at least.

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