JP2017047905A - Packing box with flap standing-state retaining function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing box which is unsealed and then opened widely so as to allow flaps to be retained in a standing state.SOLUTION: In a packing box in which inner flaps 4 and outer flaps 5 folded from adjacent side plates 1 and 2 of a peripheral wall are overlapped with each other and then sealed, at the inner flaps 4 are formed belt-like clip pieces 8 by a hook-shaped notch inserted from tip edges thereof, where at base parts and tip sides of the clip pieces 8 are formed hinge lines 9 and engagement notches 10 respectively, and also at tip edges of the outer flaps 5 are formed engagement notches 11. After the packing box is unsealed, the clip pieces 8 are folded back so that the hinge lines 9 can become base shafts, while retaining the inner flap 4 and the outer flap 5 in a standing state, and folded along corners formed by the inner flaps 4 and the outer flaps 5, and then the engagement notches 10 and 11 of the clip pieces 8 and the outer flaps 5 are engaged with each other, which can maintain the inner flaps 4 and the outer flaps 5 in the standing state.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a packaging box sealed by overlapping flaps, which has a function of holding the flap in an upright state after opening.

  Generally, a grooved corrugated cardboard packaging box called A type is configured such that an inner flap and an outer flap folded from adjacent side plates of a peripheral wall are overlapped and sealed.

  Such a packaging box is used only for transportation packaging, and is not considered to be diverted to other uses such as a trash can after opening, so keep the flap upright. There is no means.

  Moreover, in the following Patent Document 1, as shown in FIG. 5, a packaging box with a flap upright holding function is described.

  This packaging box is used as a tissue paper container, and trapezoidal flaps 53 and 54 are connected to upper ends of side plates 51 and 52 in the length direction and the width direction, respectively, and the flaps 53 and 54 are located upward. It is held upright so as to incline inward.

  Then, hook-shaped hooking plates 55 provided on both sides of the flap 53 are engaged with each other, the flaps 54 are overlapped on the surface of the hooking plate 55, and the insertion pieces 56 on both sides of the flap 54 are connected to the flaps 53 and the hooking plates. The assembled shape is maintained by being inserted into the insertion hole 57 at the boundary 55.

JP 2015-24837 A

  However, in the structure that holds the standing state of the flap described in Patent Document 1, the top surface of the box is squeezed and the opening becomes small, so when applied to the A-type packaging box for diversion to a trash box, There is a problem that it becomes difficult to throw in trash.

  Therefore, the present invention is intended to provide a packaging box that can be opened largely after opening to hold the flap in an upright state.

  In order to solve the above-described problems, the present invention provides a packaging box in which an inner flap and an outer flap folded from adjacent side plates of a peripheral wall are overlapped and sealed. A band-shaped clip piece is formed by the hook-shaped cut inserted, a hinge line is formed at the base of the clip piece, an engagement cut is formed at the tip side, and an engagement cut is also formed at the tip edge of the outer flap. It was supposed to be included.

  And in this state, the clip piece is folded back so that the hinge line becomes the base axis in a state where the inner flap and the outer flap are raised and the clip piece is bent along the corner formed by the inner flap and the outer flap. When the engagement cuts of the outer flap and the outer flap are engaged with each other, the standing state of the inner flap and the outer flap is maintained.

  In the packaging box having the flap upright holding function according to the present invention, the inner flap and the outer flap that are brought upright from the side plate are connected by the clip piece, so that the opening area surrounded by the leading edge of the inner flap and the outer flap is increased. The cross-sectional area in the box surrounded by the side plates can be made the same, and when diverted to a trash box, the trash can be thrown in easily. Moreover, it can also be diverted to a document storage box or the like, and in that case, the document can be easily stored or taken out.

  In addition, since the blank outline is the same as a normal A-type packaging box, it can be manufactured with flexo folder gluer like a normal A-type packaging box, and the manufacturing cost is reduced compared to the production by punching with a die cutter. it can.

  In addition, since the clip piece is formed by processing the inner flap, there is no difference from the normal A-type packaging box during transportation, and the sealing property is maintained.

The figure which shows the blank of the packaging box with a flap standing holding function which concerns on this invention The perspective view which shows the sealing state same as the above The perspective view which shows the standing holding state of an inner flap and an outer flap same as the above The expansion perspective view which shows the connection part of an inner flap and an outer flap same as the above The perspective view which shows the packaging box with a flap standing holding function of patent document 1

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  This packaging box consists of a cardboard blank shown in FIG. In this blank, the pair of side plates 1 and 2 in the width direction and the length direction are alternately connected, and the passage piece 3 is connected to the side end of one side plate 2. An upper flap 4 and an outer flap 5 are connected to the upper ends of the side plates 1 and 2, respectively, and an inner flap 6 and an outer flap 7 are connected to the lower ends of the side plates 1 and 2, respectively. ing.

  The inner flap 4 is formed with a band-like clip piece 8 extending along the tip edge by a hook-like cut made from the tip edge. A hinge wire 9 is formed at the base of the clip piece 8, and the tip end side thereof. Engagement cuts 10 are respectively entered.

  The hinge line 9 is formed of a ruled line and a cut line pressed from the back surface of the cardboard, and the engagement cut 10 is cut from below the inner flap 4. The clip piece 8 is notched at the lower part on the tip side from the engagement cut 10.

  Further, an engagement notch 11 is also provided on the tip edge of the outer flap 5 on the hinge line 9 side of the clip piece 8. The engagement cut 11 has an L shape bent toward the side edge of the outer flap 5, and a small pressing piece 12 is formed facing the engagement cut 11.

  The distance k between the hinge line 9 of the clip piece 8 and the engagement notch 10 is the distance m between the extension line of the peripheral wall ridge line (the boundary line of the side plates 1 and 2) and the hinge line 9 of the clip piece 8. Corresponding to the sum of the extension line of the peripheral wall ridgeline and the distance n between the engagement cuts 11 of the outer flap 5 plus the thickness of one cardboard, it is set equal to or larger than this. Yes.

  Such a blank is folded along a ruled line at the boundary between the side plates 1 and 2 located at the diagonal of the peripheral wall, and the passage piece 3 is attached to the side end portion of the opposite side plate 1 during manufacture. Thus, a flat folded state is set.

  When packaging an article, as shown in FIG. 2, a square cylindrical peripheral wall is formed from each pair of side plates 1 and 2, and the lower inner flap 6 and outer flap 7 are folded and taped or the like. The bottom surface is closed by fixing, and the article is stored from the open top surface, and then the upper inner flap 4 and the outer flap 5 are folded and fixed with tape or the like to close the top surface.

  When the article is transported in this sealed state, opened and taken out, and then reused as a trash can, the inner flap 4 and the outer flap 5 are raised as shown in FIGS. 3 and 4 Then, the clip piece 8 is folded back so that the hinge line 9 serves as the base axis, bent along the corner formed by the inner flap 4 and the outer flap 5, and the engagement cuts 10, 11 of the clip piece 8 and the outer flap 5 are mutually connected. As a result of the engagement, the upright state of the inner flap 4 and the outer flap 5 is maintained.

  At this time, if the clip piece 8 is sequentially bent in a direction overlapping the outside of the inner flap 4 and the outer flap 5, the tip side portion enters the inside of the outer flap 5 from the engagement cut 10 of the clip piece 8. It does not feel annoying by protruding outward.

  Further, the pressing piece 12 is pushed and bent by the clip piece 8, and the tip side portion from the engagement notch 10 of the clip piece 8 is pushed by the repulsion of the pressing piece 12 and is in a state along the outer flap 5. This part does not hinder the input of garbage.

  In the packaging box having the above-described flap upright holding function, the inner flap 4 and the outer flap 5 which are upright from the side plates 1 and 2 are connected by the clip piece 8, so that the front end of the inner flap 4 and the outer flap 5 The opening area surrounded by the edge can be made the same as the cross-sectional area in the box surrounded by the side plates 1 and 2, and when diverted to a trash box, the trash can be easily put in. Moreover, it can also be diverted to a document storage box or the like, and in that case, the document can be easily stored or taken out.

  In addition, since the blank outline is the same as a normal A-type packaging box, it can be manufactured with flexo folder gluer like a normal A-type packaging box, and the manufacturing cost is reduced compared to the production by punching with a die cutter. it can.

  In addition, since the clip piece 8 is formed by cutting the inner flap 4 covered with the outer flap 5 in the sealed state, in the transportation process, there is no difference from a normal A-type packaging box in appearance, Sealing performance is maintained.

  In the above-described embodiment, the flap upright holding mechanism including the clip piece 8, the hinge wire 9, and the engagement cuts 10 and 11 is provided at two positions in the diagonal position. When provided at all four locations, the stability of the standing state of the inner flap 4 and the outer flap 5 can be further enhanced.

  Further, since the clip piece 8 is bent about the step along the corner formed by the inner flap 4 and the outer flap 5, no folding ruled line is particularly inserted in the middle portion of the clip piece 8. A ruled line such as a hinge line 9 may be put in advance in the middle part of the clip piece 8 so that 8 can be easily bent along the corner formed by the inner flap 4 and the outer flap 5.

1, 2 Side plate 3 Passage piece 4 Inner flap (top side)
5 Outside flap (top side)
6 Inner flap (bottom side)
7 Outer flap (bottom side)
8 Clip piece 9 Hinge wire 10 Engagement cut (one side of clip)
11 Engagement cut (outside flap side)
12 Pressing piece

Claims (1)

In the packaging box in which the inner flap (4) and the outer flap (5) folded from the side plates (1, 2) adjacent to the peripheral wall are overlapped and sealed,
The inner flap (4) is formed with a band-like clip piece (8) by a hook-like notch inserted from the leading edge, and a hinge wire (9) is formed at the base of the clip piece (8). Are each provided with an engagement cut (10), and an engagement cut (11) is also formed at the front edge of the outer flap (5).
With the inner flap (4) and the outer flap (5) standing up after being opened, the clip piece (8) is folded back so that the hinge line (9) becomes the base axis, and the inner flap (4) and the outer flap ( 5) Folding along the corner formed by the clip, and engaging the notches (10, 11) of the clip piece (8) and the outer flap (5) together, the inner flap (4) and the outer flap (5) stand up. A packaging box with a flap upright holding function, characterized in that the state is maintained.

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