JP2009102024A - Height variable box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a height variable box for firm repackaging by easily changeable height, and facilitating taking out the contents. <P>SOLUTION: A peripheral wall is formed with a pair of side plates 1 and a pair of side plates 2 perpendicular to the pair of side plates. Lid flaps 6 and 7 are extended from respective side plates 1 and 2, and the side plates 1 and 2 are provided with side folding lines 9 at certain intervals downward from lid folding lines 8 at the base ends of the lid flaps 6 and 7. Upper parts from the side folding lines 9 of the side plates 1 and 2 are made to be rising/falling parts 1a and 2a. Notches 12 are made at boundaries of the rising/falling parts 1a and 2a of adjacent side plates 1 and 2, and a normal packaging condition in which the lid flaps 6 and 7 are bent at the lid folding lines 8 as axes, or a lowly contracted packaging condition in which the rising/falling parts 1a and 2a of the side plates 1 and 2 and the lid flaps 6 and 7 are bent at the side folding lines 9 as axes, can be selectable. At least either one of the side folding lines 9 of a pair of the side plates 1 and 2 are vertically separated so that the side folding lines intersect at both end parts and their intervals are widened at the central parts to form chamfering parts 10. Vertical cuts 11 are formed at the central parts of the chamfering parts 10, and the chamfering parts 10 are inclined by being bent at the side folding lines 9. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a height-variable box that is used in the mail-order sales and home delivery industries that handle a variety of articles, and whose height dimension can be changed according to the height and quantity of articles to be stored.

  Conventionally, as shown in FIGS. 6 and 7, a peripheral wall is formed from a pair of side plates 51 and a pair of side plates 52 perpendicular to the side plates 51, and lid flaps 53, 54 are extended from the side plates 51, 52. There is known a variable height box based on a grooved cardboard box.

  In this box, a side fold line 56 is provided on each side plate 51, 52 at a distance from the lid fold line 55 at the base end of the lid flaps 53, 54, with the undulating portion 51a above the side fold line 56 of the side plates 51, 52. , 52a, and cuts 57 are made at the boundaries between the undulating portions 51a, 52a of the adjacent side plates 51, 52.

  Then, as shown in FIG. 6, according to the height and quantity of the articles to be stored, the lid flaps 53 and 54 are folded in the lid folding line 55 as an axis, and as shown in FIG. 7, the side plates 51 and 52 are folded. Can be selected from a low-reduced packaging state in which the undulating portions 51a and 52a and the lid flaps 53 and 54 are bent with the side fold line 56 as an axis (see Patent Document 1 below).

Japanese Patent Laid-Open No. 9-156631

  However, in the case of the variable height box as described above, once in the low-shrinkage packaging state, the side fold line 56 has a crease, and it is difficult to wrap when repackaging in the normal packaging state due to the addition of articles to be stored or the like. There is a problem that the packaging state becomes unstable.

  Further, when taking out the stored article after opening it from the packaged state, there are cases where it is difficult to take out the article because the hand is not placed between the article and the side plates 51 and 52.

  Therefore, an object of the present invention is to provide a variable height box that can be easily repacked by changing the height and can be repacked firmly and from which an article can be easily taken out.

  In order to solve the above problems, the present invention forms a peripheral wall from a pair of side plates and a pair of side plates perpendicular to the side plates, extends a lid flap from each side plate, and each side plate has a base end of the lid flap. A side fold line is provided at a distance from the lid fold line to the lower side, a fold is formed above the side fold line of the side plate, a notch is made at the boundary of the undulation portion of the adjacent side plate, and the lid flap is bent around the lid fold line In a variable height box that can be selected between a packaging state and a low-shrinkage packaging state in which the undulating portion of the side plate and the lid flap are bent with the side folding line as an axis, the side folding line of the at least one pair of side plates is formed at both ends. The chamfered part is separated into the chamfered part so that the gap is wide at the center of the intersection, and the part between the side fold lines is a chamfered part. It was made to incline.

  With the variable height box according to the present invention, it is possible to package articles of various heights and quantities without preparing boxes of different sizes. Even in this case, the side plate having the chamfered portion is restored from the state bent at the side fold line and becomes a flat surface so that it can be easily and firmly packaged in a normal packaging state without being corrected by hand. .

  Also, when taking out the article by opening it, opening the lid flap and the undulating part of the side plate, the chamfered part is inclined outward, and a gap is created between the article and the side plate, so put your hands through the gap, The article can be easily taken out.

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

  As shown in FIG. 1, in the corrugated blank of the variable height box, a pair of wide side plates 1 and a pair of narrow side plates 2 are alternately arranged, and one side plate 1 has an outer side. A passage piece 3 is provided continuously. Bottom flaps 4 and 5 are connected to the lower ends of the side plates 1 and 2, and lid flaps 6 and 7 are connected to the upper ends thereof.

  The base ends of the lid flaps 6, 7 are the crease fold line 8, and the side plates 1, 2 are provided with a crease side fold line 9 with a space below the lid fold line 8. The passage piece 3 is also provided with an extension of the side fold line 9.

  The side fold line 9 intersects at both ends and is separated into a fold line shape so that the interval is wide at the center, and a portion sandwiched between the side fold lines 9 is a rhombus chamfered portion 10. A vertical cut 11 penetrating in the thickness direction of the corrugated cardboard is formed in a central portion where the vertical width of the chamfered portion 10 is widest.

  Above the side folding lines 9 of the side plates 1 and 2 are undulating portions 1a and 2a, and a notch 12 is made at the boundary between the undulating portions 1a and 2a of the adjacent side plates 1 and 2. The position of the notch 12 is shifted from the ruled line below the notch 12 so that the undulating portion 2a projects sideways.

  When assembling such a blank and packaging an article in a normal packaging state, as shown in FIG. 2, each pair of side plates 1 and 2 is bent into a rectangular tube shape, and the passage piece 3 is the opposite side plate. 2 are attached to form a peripheral wall, the bottom flaps 4 and 5 are overlapped, the bottom is closed, the lid flaps 7 and 6 are sequentially folded inward with the lid fold line 8 as an axis, overlapped, and sealed with an adhesive tape or the like.

  At this time, since the protruding portion of the undulating portion 2a of the side plate 2 abuts on the side plate 1, the undulating portion 2a of the side plate 2 does not fall into the inside of the box and is bent from the side plate 2 even if the notch 12 is inserted. Since the inner surface of the upper end of the side plate 1 contacts the side edge of the lid flap 7, the undulating portion 1a of the side plate 1 does not fall into the box.

  On the other hand, as shown in FIG. 3, when the article to be stored is packaged in a low-reduced packaging state when the height of the article to be stored is low or when a small quantity of small articles is stored, a peripheral wall is formed as described above. Then, with the bottom face closed, first, the undulating portion 1a and the lid flap 6 of the side plate 1 are bent with the side fold line 9 as an axis, and these opposing portions are overlapped.

  Next, as shown in FIG. 4, the undulating portion 2 a and the lid flap 7 of the side plate 2 are bent with the side fold line 9 as an axis, and these opposing portions are overlapped to cover the undulating portion 1 a and the lid flap 6 of the side plate 1. In this way, sealing is performed with an adhesive tape or the like.

  In such a low-shrinkage packaging state, the side folding lines 9 are provided so as to intersect at both ends, and the interval is wide at the center, so that the side plates 1 and 2 are bent while retaining the repulsive force, and the longitudinal cut 11 Due to the presence of the chamfered portion 10, the chamfered portion 10 is inclined without an excessive compressive force acting on the central portion of the chamfered portion 10.

  In this variable height box, the side plates 1 and 2 are bent at the side folding line 9 even when repackaging in the normal packaging state with the addition of articles to be stored, etc. Since it recovers from the state and stands upright as a flat surface, it can be packaged easily and firmly in a normal packaging state without correction by hand.

  When opening and taking out the article, as shown in FIG. 5, when the lid flaps 6, 7 and the undulating parts 1 a, 2 a of the side plates 1, 2 are opened, the chamfered part 10 is inclined outward, and the article G Since there is a gap between the side plates 1 and 2, the article can be easily taken out by putting a hand through the gap.

  Note that the order in which the lid flaps 6 and 7 are stacked may be changed by appropriately adjusting the positions of the lid folding line 8 and the notch 12 in consideration of the thickness of the cardboard.

  Further, the side fold line 9 may be branched at a position slightly away from both side ends of the side plates 1 and 2, or may be curved in an arc shape so that the chamfered portion 10 has a convex lens shape.

  Further, the side folding line 9 and the chamfered portion 10 may be provided in a plurality of stages on the side plates 1 and 2 with an interval in the vertical direction, and only one of the pair of side plates 1 and 2 is provided. It may be provided.

  Moreover, the notch 12 shall have a connection part in the shape of a perforation for the intensity | strength improvement in a normal packaging state, and you may make it cut | disconnect this connection part, when setting it as a low contraction packaging state.

  In addition, the passage piece 3 may be cut out so as to remove a portion located on the extension line of the side folding line 9 in order to improve the bendability in the low-shrinkage packaging state.

The figure which shows the blank of the variable height box which concerns on this invention The perspective view which shows a normal packaging state same as the above Perspective view showing the packaging process The perspective view which shows the low shrinkage packaging state same as the above The perspective view which shows an open state same as the above The perspective view which shows the normal packaging state of the conventional variable height box The perspective view which shows the low shrinkage packaging state same as the above

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Side plate 1a, 2a Unraveling part 3 Passage piece 4, 5 Bottom flaps 6, 7 Lid flap 8 Lid fold line 9 Side fold line 10 Chamfer 11 Vertical cut 12 Notch

Claims (1)

A peripheral wall is formed from a pair of side plates (1) and a pair of side plates (2) perpendicular to the side plates, and a lid flap (6, 7) is extended from each side plate (1, 2) to each side plate (1 , 2) is provided with a side fold line (9) spaced downward from the lid fold line (8) at the base end of the lid flap (6, 7), and above the side fold line (9) of the side plate (1, 2). Make the undulations (1a, 2a), make a notch (12) at the boundary of the undulations (1a, 2a) of the adjacent side plates (1, 2), and the lid flaps (6, 7) with the lid fold line (8) Selectable between normal packaging folded on the axis and low-reduction packaging folded on the side fold line (9) with the undulations (1a, 2a) and lid flaps (6, 7) of the side plate (1, 2) In the variable height box,
The side fold line (9) of at least one of the pair of side plates (1.2) is vertically separated so as to intersect at both ends so that the space is wide at the center, and a portion between the side fold lines (9) is chamfered. The vertical chamfer (11) is inserted in the central portion of the chamfered portion (10), and the chamfered portion (10) is inclined by bending at the side fold line (9). Variable height box.

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