JP4729945B2 - Top open paper box - Google Patents

Description

  The present invention relates to a top-open type paper box that opens a lid portion formed on a top plate with a perforation line for breaking when taking out stored items such as confectionery.

  Conventionally, as shown in FIG. 4, for example, the top open type paper box (10) includes a top plate (120), a bottom plate (140), a front side plate (110 on the outside, 150 on the inside), and a rear side plate (130). It is a square box consisting of a left side plate (180 on the outside, 160 on the inside) and a right side plate (190 on the outside, 170 on the inside). The lid side knob (111) is a lid knob piece on the front side plate (110). (112) is formed, and the lid part (122) is formed on the top surface plate (120) by the breaking perforation line (121) in succession to the breaking perforation line (111) forming this lid part knob piece. Met. Then, when taking out the stored items, the tip of the lid knob piece of the front side plate is picked with a finger and pulled upward to break the breaking perforation line (111), and further the lid knob piece is pulled rearward and upward. The top perforated line (121) for breaking the top plate was broken, and the lid was opened to open the top plate.

  However, the lid portion of the above-described conventional top open type paper box opens and closes via a straight crease line (106) shown in FIG. 4 in which the rear end of the top plate and the upper end of the rear side plate are located. Since the crease line is a straight line, the opened lid part may move in the closing direction when the finger is released from the lid knob piece in order to take out the stored items, and the opening of the top panel is opened. There were cases where it became narrow and it was difficult to take out the stored items.

  The present invention solves the problems of the above-described conventional top open paper box, and when the lid is opened, the lid is fixed in a fully opened state, and the stored items are removed from the opening of the top panel. A top open paper box that is easy to take out is provided.

  That is, the first invention of the present invention is a rectangular paper box comprising a top plate, a bottom plate and front, back, left and right side plates, and a lid portion is formed on the top plate so that it can be opened by a perforation line for breakage. When the lid part opens and closes through a crease line formed at a position where the rear end of the top plate and the upper end of the rear side plate are in contact, the shape of this crease line is arcuate, and when the lid part is opened, It is a top open type paper box characterized by being fixed in the state where a lid part was opened.

  The second invention of the present invention is a rectangular paper box comprising a top plate, a bottom plate, and front, back, left and right side plates, at a position where the upper end of the front side plate contacts the front end of the top plate. An arc-shaped crease line that bulges to the rear is formed, and an arc-shaped crease line that bulges rearward is formed at a position where the rear end of the top plate contacts the upper end of the rear side plate, and the lower end of the rear side plate and the bottom plate An arc-shaped crease line that swells backward is formed at a position where the rear end of the base plate is in contact, and an arc-shaped crease line that bulges forward is formed at a position where the front end of the bottom plate and the lower end of the front side plate are in contact with each other. A top open type paper box characterized by being fixed in a state in which the lid is opened when a lid formed so as to be openable by a breaking perforation line is opened on the top plate.

The top open type paper box of the present invention opens and closes the lid portion through an arc-shaped crease line formed at a position where the rear end of the top plate and the upper end of the rear side plate are in contact with each other. When opened more rearward, the lid part reverses backward at the arc-shaped crease line position, and at the same time, the rear side plate is deformed forward at the arc-shaped crease line position and a repulsive force is generated, as shown in FIG. The lid (122) is fixed in a substantially vertical position. The repulsive force of the rear side plate is not so large because it is made of paper, and the lid can be easily closed forward, and when the lid is opened backward from the vertical, the lid is rearward at the crease line position. At the same time, the rear side plate is restored to the original shape forward at the fold line position, and the repulsive force disappears.

  Next, an embodiment of the top open paper box of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1 (a) or (b), the top open type paper box of the present embodiment includes a top plate (120), a bottom plate (140), a front side plate (110 on the outside, 150 on the inside), and a rear side. This is a rectangular box comprising a face plate (130), a left side plate (180 on the outside, 160 on the inside) and a right side plate (190 on the outside, 170 on the inside), and a perforation line (111) for breaking on the front side plate (110). Then, a lid knob piece (112) is formed, followed by a break perforation line (111) forming the lid knob piece, and a lid part (122) is formed on the top plate (120) with a break perforation line (121). In addition, as shown in FIG. 1A, an arc-shaped fold that swells forward at a position where the upper end of the front side plate (110) and the front end of the top plate (120) are in contact with each other. Line (101) is formed, the rear end and rear side of the top plate An arc-shaped crease line (102) that swells rearward is formed at a position where the upper end of the plate (130) is in contact with the rear end of the rear side plate and the rear end of the bottom plate (140) at the rear side. An arc-shaped crease line (104) that bulges forward is formed at a position where the front end of the bottom plate and the lower end of the front side plate (150) are in contact with each other.

  Next, specific examples of the present invention will be described.

First, a blank of the top open paper box of the example was produced by punching. This blank (100) uses a paperboard with a basis weight of 310 g / m ² as a base material, and as shown in FIG. 3, an arc-shaped crease line (101) bulging downward is provided above the outer front side plate (110). The top face plate (120) is connected to the left and right sides of the top face plate via the straight crease lines (181, 191), respectively. The back side plate (130) is connected to the top surface plate via an arc-shaped crease line (102) that swells upward, and straight crease lines (132, 134) are respectively formed on the left and right sides of the back side plate. ), The left side adhesive strip (131) and the right side adhesive strip (133) are connected in series, and the bottom plate (140) is connected in series above the back side plate via an arc-shaped crease line (103). And straight crease lines on the left and right sides of the bottom plate ( 61, 171) through which an inner left side plate (160) and an inner right side plate (170) are connected in series, and an inner front side through an arcuate fold line (104) that swells upward above the bottom plate. A face plate (150) is provided continuously, and a folding piece (155) is provided above the inner front side plate via an arcuate crease line (105) that swells downward, on the left and right sides of the inner front side plate. The left adhesive piece (151) and the right adhesive piece (153) are connected to each other through straight crease lines (152, 154), respectively, and the outer perimeter plate (110) has a breaking perforation line ( 111), a lid knob piece (112) is formed, followed by a break perforation line (111) forming the lid knob piece, and a lid part at the break perforation line (121) on the top plate (120). (122) is formed, almost in the lid knob piece A resealing hook (113) is formed at the center position by cutting, and a resealing cut (156) is formed at the position of the inner front side plate corresponding to the resealing hook of the lid knob piece. is there.

Next, the above-mentioned blank was loaded into a box making machine, and the box making, the stored item insertion, and sealing were performed to produce the top open type paper box of the example. The blank (100) shown in FIG. 3 loaded in the filling machine first has an arc-shaped crease line (104) at the upper end of the bottom plate (140), a straight crease line (161) at the left end, and a straight line at the right end. The crease line (171) and the arc-shaped crease line (103) at the lower end are folded inward, the folded piece (155) is folded inward, and the outer surface of the left adhesive piece (151) and the inner surface of the inner left side plate (160) I stuck the door, and stuck to the inner surface of the right adhesive piece (15 3) of the outer surface and the inner right side plate (170), the left side adhesive strip (13 1) of the outer surface and the inner left side plates (160) The inner surface, the outer surface of the right adhesive piece (133) and the inner surface of the right side plate (170) on the inner side are bonded to form a box, and in this state, the stored item is inserted into the box contents, and Fold the arc-shaped crease line (102) at the upper end of the top plate (120) and the straight line at the left end It is formed by a perforation line (121) for breaking the outer front side plate (110) by bending the line (181), the straight crease line (191) at the right end and the arc-shaped crease line (101) at the lower end inward. The left and right inner surfaces of the lid knob piece (1 1 2) are adhered to the outer surface of the inner front side plate (150), and the inner surface of the outer left side plate (180) is adhered to the outer surface of the inner left side plate (160). The top open type paper box for storing items is sealed by sticking and attaching the inner surface of the outer right side plate (190) to the outer surface of the inner right side plate (170).

  The top open paper box of the above-described embodiment is obtained by picking the tip of the lid knob piece (112) formed on the outer front side plate (110) shown in FIG. 1 (a) with a finger and pulling it upward. When the breaking perforation line (111) is broken and the lid knob piece is pulled rearward and upward to break the breaking perforation line (121) of the top plate (120), as shown in FIG. 122) was formed and an opening (123) was formed in the top plate (120). The lid portion opens rearward through an arc-shaped crease line (102) formed at a position where the rear end of the top plate and the upper end of the rear side plate are in contact with each other. The lid part was reversed backward with a slight sense of resistance at the crease line position, and the lid part was fixed at a substantially vertical position even when the finger was removed from the lid part. For this reason, the opening part of the top | upper surface board opened large, and the stored item was easy to take out. Further, when the lid portion was tilted forward for resealing, it could be easily closed with a slight resistance.

  The arc-shaped crease line formed at the position where the rear end of the top plate of the top open type paper box of the present invention and the upper end of the rear side plate are in contact with each other has a rounder shape as the radius of the arc decreases, and the lid portion Since the repulsive force due to the deformation of the rear side plate when it is reversed backward at the arcuate crease line position, the lid portion is firmly fixed. However, when the repulsive force due to the deformation of the rear side plate becomes too strong, it is difficult to open and close the lid.

(A) is a top view in the top open type paper box of one embodiment of the present invention, and (b) is a front view. The perspective view which shows the state fixed with the cover part opened, when the perforation line for a break formed in the front side plate and the top plate on the outside of the top open type paper box of FIG. It is. It is the expansion | deployment top view seen from the outer surface of the blank of one Embodiment of the top open type paper box of this invention. It is a perspective view of the conventional top open type paper box.

Explanation of symbols

10: Top open type paper box 100: Blank 101, 102, 103, 104, 105 ... Arc-shaped crease lines 106, 132, 134, 152, 154, 161, 171, 181, 191 ... Straight crease lines 110 …… Outer front side plates 111, 121 …… Perforation line for breaking 112 …… Lever knob 113 · Reseal hook 120 · Top plate 122 · Lid 123 ··· Opening portion 130 ··· Rear Side plate 131, 151 …… Left side adhesive piece 133, 153 …… Right side adhesive piece 140 …… Bottom plate 150… Inner front side plate 155 …… Folded piece 156 …… Resealing cut 160 …… Inner left side plate 170 ... Inner right side plate 180 ... Outer left side plate 190 ... Outer right side plate

Claims (2)

  A rectangular paper box consisting of a top plate, a bottom plate, and front, back, left and right side plates. A lid is formed on the top plate so that it can be opened at the perforation line for breakage. It opens and closes via a crease line formed at a position in contact with the upper end of the face plate, and the shape of the crease line is an arc, and when the lid is opened, the lid is opened and fixed. A top-open paper box characterized by that.   A square paper box consisting of a top plate, a bottom plate, front and rear side plates, and forming an arc-shaped fold line that swells forward at a position where the upper end of the front side plate and the front end of the top plate touch each other. An arc-shaped crease line that swells rearward is formed at a position where the rear end of the top plate and the upper end of the rear side plate are in contact with each other, and the rear end of the rear side plate is in contact with the rear end of the bottom plate An arc-shaped crease line that swells is formed, and an arc-shaped crease line that bulges forward is formed at a position where the front end of the bottom plate and the lower end of the front side plate are in contact with each other, so that the top plate can be opened with a breaking perforation line. A top open type paper box characterized by being fixed in a state in which the lid is opened when the formed lid is opened.

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