JP2015013652A - Opening line, tear strip, and paper box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening line, a tear strip and a paper box provided with the same in which the opening line and the tear strip can be opened from either of right or left directions, end parts after the opening are beautiful, and there is no risk of damaging fingers by the end parts.SOLUTION: An opening line 100 is provided in a paper box. A U-shaped cut line 1 and linear cut lines 2 are repeatedly provided through joining portions 3, and the lower end part of the U-shaped cut line is formed on the same straight line with the straight lines of the linear cut lines. Then, the U-shaped cut line comprises a linear portion 1a at a lower end part, and curved portions 1b inclined outward in the S-shape at the right end of the linear portion and in the reverse S-shape at the left end thereof, respectively. Also, the tear strip is provided by arranging two of the opening lines in parallel so that the right and left upper end parts of the U-shaped cut line face each other.

Description

  The present invention relates to an opening line, a tear strip, and a paper box. In particular, the present invention relates to an opening line, a tear strip used as an opening means for a paper box storing food such as sweets and medicines and the like, and a paper box provided with the opening.

  Furthermore, it can be opened easily from either the left or right direction so that it can be easily opened by elderly people, children, or left-handed people, and after opening, a beautiful opening line, a tear strip, and Related to paper boxes.

  2. Description of the Related Art Conventionally, an opening line or a tear band is provided as a means for opening a paper box or the like that stores food such as candy or medicine. Most of them are provided to be opened from either the left or right side (for example, Patent Document 1 and Patent Document 2).

  However, if it can only be opened from either the left or right side, it may be difficult for elderly people, children, left-handed people, etc. to open, so it was thought that it could be opened from either the left or right direction. Things have been developed.

  For example, a paper container opening provided with a long straight cut line intermittently connected in two rows at the same phase along the opening direction, and a short straight cut line perpendicular to the opening direction at both ends of each long cut line. There is a zipper (tearing band) for use (Patent Document 3).

  Further, as shown in FIG. 8, in order to enable opening from both directions, an opening line 500 in which a U-shaped cut line 4 and a straight cut line 2 are connected in a broken line shape via a connecting portion 3. There is a bi-directional tear strip (tear strip 600) provided so that the U-shaped lower end faces each other (Patent Document 4).

  Known documents are shown below.

JP 2004-224368 A Japanese Utility Model Publication 1-262525 JP 10-101064 A Noto 3079649

  In the tear band of the above-mentioned patent document 3 and patent document 4, although it can open from any direction on either side, the cut | disconnected edge part formed by opening will become a shape which has an unevenness | corrugation. For this reason, there is a risk of damaging fingers, and the appearance of the paper box after opening will be poor.

  The present invention has been made in view of the circumstances as described above, and can be opened from either the left or right direction, the end after opening is beautiful, and there is no risk of damaging the fingers by this end. It is an object to provide a band and a paper box provided with the band.

  The invention of claim 1 of the present invention is an opening line provided in a paper box, wherein a U-shaped cut line and a straight cut line are repeatedly provided via a connecting portion, and the U-shaped cut line is provided. The opening line is characterized in that the straight line between the lower end of the line and the straight cut line is formed on the same straight line.

  According to a second aspect of the present invention, the U-shaped cut line is a curved line that inclines outward in a straight line portion at the lower end, an S shape at the right end of the straight line portion, and an inverted S shape at the left end. The opening line according to claim 1, comprising a portion.

  The invention according to claim 3 of the present invention is such that the left and right upper ends of the U-shaped cut line are a straight line in which the lower end of the U-shaped cut line and the straight line of the straight cut line are arranged, It is formed so that it may become substantially parallel, The opening line of Claim 1 or 2 characterized by the above-mentioned.

  According to a fourth aspect of the present invention, the left and right ends of the U-shaped cut line and the straight cut line are provided so as to overlap in the vertical direction. It is an opening line of any one of these.

  According to a fifth aspect of the present invention, the opening lines according to any one of the first to fourth aspects are arranged in parallel so that the left and right upper ends of the U-shaped cut line face each other. It is a tear zone characterized by being provided and formed.

  The invention according to claim 6 of the present invention is a paper box provided with the opening line according to any one of claims 1 to 4.

  A seventh aspect of the present invention is a paper box provided with the tear strip according to the fifth aspect.

  The opening line, tear band, and paper box provided with the opening line of the present invention can be opened from either the left or right direction, and the end portion after opening is beautiful, and there is no fear of damaging fingers by this end portion.

It is explanatory drawing of an example of the opening line | wire of this invention. It is the elements on larger scale explaining an example of the opening line of this invention. It is explanatory drawing of an example of the tear zone of this invention. It is an expanded view of the paper box which provided an example of the opening line of this invention. It is explanatory drawing which showed the state which opened the paper box which provided an example of the opening line of this invention by the perspective view. It is an expanded view of the paper box which provided an example of the tear zone of this invention. It is explanatory drawing which showed the state which opened the paper box which provided an example of the tear belt of this invention by the perspective view. It is explanatory drawing of an example of the conventional tear zone.

Hereinafter, modes for carrying out the present invention will be described.
FIG. 1 is an explanatory diagram of an example of the opening line of the present invention. FIG. 2 is a partially enlarged view for explaining an example of the opening line of the present invention.

As shown in FIG. 1, the opening line 100 of this example is provided with a U-shaped cut line 1 and a straight cut line 2 via a connecting portion 3, and a lower end portion of the U-shaped cut line 1, The straight cut lines 2 are repeatedly formed in a line on the same straight line.

  The left and right ends of the U-shaped cut line 1 and the straight cut line 2 are provided so as to overlap in the vertical direction. The left and right upper ends of the U-shaped cut line 1 are provided so as to be substantially parallel to the straight line in which the lower end portion of the U-shaped cut line 1 and the linear cut line 2 are arranged. .

  Further, as shown in FIG. 2, the U-shaped cut line 1 has a straight line portion 1a at the lower end, an S-shaped shape at the right end of the straight line portion 1a, and a curved portion that is inclined outward at an inverted S-shape at the left end. 1b. When opening, the opening line 100 is provided so that the curved portion 1b of the U-shaped cut line 1 is directed to the side where a lot of strain is applied.

  At this time, the distance X between the straight line portion 1a at the lower end of the U-shaped cut line 1 and the straight cut line 2 is preferably 2 mm or less. When the distance X exceeds 2 mm, when opening, the connecting portion 3 may be broken without being broken, and may be detached from the opening line 100 and broken.

  The distance Y in which the curved line portion 1b of the U-shaped cut line 1 and the straight cut line 2 overlap in the vertical direction is preferably 0.5 mm or more. In the case of less than 0.5 mm, at the time of opening, the breakage may not be continued at the connecting portion 3 and may be broken from the opening line 100.

  As described above, the unsealing line 100 of this example is easy to unseal, the cut end portion after opening is beautiful, and there is no risk of damaging the fingers by this end portion.

  FIG. 3 is an explanatory diagram of an example of the tear band of the present invention.

  As shown in FIG. 3, the tear band 200 of this example is provided with two unsealing lines 100, 100 arranged in parallel so that the ends of the left and right curved portions 1 b of the U-shaped cut line 1 face each other. Is formed.

  Since it is arranged in such an arrangement, even if the tear band 200 is pulled from both the left and right ends and ruptured, the curved portion 1b of the U-shaped cut line 1 is directed to the side where a lot of distortion is applied. Opening is easy, and the cut end after opening is beautiful, and there is no risk of damaging the fingers by this end.

  FIG. 4 is a development view of a paper box provided with an example of the opening line of the present invention. FIG. 5 is an explanatory view showing the opened state of a paper box provided with an example of the opening line of the present invention in a perspective view.

  As shown in FIG. 4, the paper box 300 provided with the unsealing line 100 of the present example includes a left side plate 11, a front plate 12, a right side plate 13, a back plate 14, and an adhesive plate 15 that are sequentially provided. A top plate 16 extends from the upper end of the front plate 12, and a bottom plate 17 extends from the lower end of the front plate 12.

  A top surface adhesive plate 18 is extended to the upper end of the back plate 14, and a bottom surface adhesive plate 19 is extended to the lower end of the back plate 14. It is designed to stick to the inner surface.

Further, near the upper ends of the front plate 12 and the back plate 14, the unsealing line 100 is linear in the horizontal direction so that the ends of the left and right curved portions 1b of the U-shaped cut line 1 face upward. Is provided.

  On the upper and lower ends of the left side plate 11 and the right side plate 13, flaps 20, 20, 20, 20 are provided, respectively. The left side plate 11 and the right side plate 13 are provided with easy-cut lines 21 and 21 by cutting in a broken line shape in the horizontal direction so that both ends thereof are connected to the opening line 100. Further, push-in auxiliary lines 22 and 22 are provided so as to spread upward from the easy-cut lines 21 and 21 respectively by two broken-line ruled lines (studded lines).

  Breaking lines 23 and 23 formed by broken-line notches are provided on the upper and lower ends of the left and right center of the back plate 14 as arcuate curves that are convex toward the center of the back plate 14. Further, easy cut lines 24 and 24 are provided from both ends of the break lines 23 and 23 to the left and right.

  In order to form the paper box 300, first, the left side plate 11, the front plate 12, the right side plate 13, and the back plate 14 are folded into a cylindrical shape, and the sticking plate 15 is stuck to the back surface of the left side plate 11 to form a sack shape. (Cylinder).

  Next, the lower flaps 20, 20 are folded inward, the bottom adhesive plate 19 is folded inward, the bottom plate 17 is folded inward, and the bottom surface of the bottom plate 17 is placed on the surface of the bottom adhesive plate 19. Adhere to. Thereby, a bottom portion is formed.

  Put the contents in the paper box 300 in which the bottom portion is formed, fold the upper flaps 20 and 20 inward, fold the top adhesive plate 18 inward, and stack the top plate 16 inward. And the back surface of the top plate 16 is adhered to the surface of the top surface adhesive plate 18. Thereby, the paper box 300 is boxed.

  In order to open the paper box 300, the center of the easy cut line 21 of the left side plate 11 or the right side plate 13 is pushed with a finger, and the easy cut line 21 is broken. At this time, the left side plate 11 or the right side plate 13 is bent inward via the adjacent push assist lines 22, 22, and the easy cutting line 21 is easily broken.

  When a finger is put into the lower end of the upper part of the left side plate 11 or the right side plate 13 cut by the easy cutting line 21 and pulled to lift, the opening lines of the front plate 12 and the back plate 14 are opened as shown in FIG. 100 and 100 are cut off from the pulled side.

  When the unsealing lines 100, 100 are cut, they are connected only by the right side plate 13 or the left side plate 11, so that the easy cutting line 21 of the right side plate 13 or the left side plate 11 is cut. Thereby, the upper part of the paper box 300 is cut off and opened. In FIG. 5, the left side plate 11 is opened, but the same is true when the right side plate 13 is opened.

  Further, when resealing, the pushing auxiliary lines 22 and 22 provided at the upper part of the separated paper box 300 are deformed by being pushed inward, and are resealed by being fitted into the opening at the lower part of the paper box 300. Can do.

  As described above, the paper box 300 provided with the opening line 100 of this example is easy to open, and the cut end portion after opening is beautiful, and there is no fear of damaging the finger by this end portion.

  The opened paper box 300 has a cylindrical shape with a bottom on both the upper and lower sides and is difficult to reduce the volume by crushing. Therefore, the broken lines 23 and 23 are pushed and broken with a finger, and the easily cut lines 24 and 24 are formed. When cut, it can be made into a sack shape, and can be discarded after being reduced in volume, such as being folded flat.

  FIG. 6 is a developed view of a paper box provided with an example of the tear band of the present invention. FIG. 7 is an explanatory diagram showing a perspective view of the unsealed state of the paper box provided with an example of the tear band of the present invention.

  As shown in FIG. 6, the paper box 400 provided with the tear band 200 of this example has a left side plate 11, a front plate 12, a right side plate 13, a back plate 14, and an adhesive plate 15 that are successively provided. A top plate 16 extends from the upper end of the front plate 12, and a bottom plate 17 extends from the lower end of the front plate 12.

  A top surface adhesive plate 18 is extended to the upper end of the back plate 14, and a bottom surface adhesive plate 19 is extended to the lower end of the back plate 14. It is designed to stick to the inner surface.

  A tear band 200 is provided in the horizontal direction near the upper end of the front plate 12. Further, a crease 25 is provided in the horizontal direction near the upper end of the back plate 14. The crease 25 is provided at a position higher than the tear band 200.

  On the upper and lower ends of the left side plate 11 and the right side plate 13, flaps 20, 20, 20, 20 are provided, respectively. The left side plate 11 and the right side plate 13 are provided with easy-cut lines 21 and 21 by a broken line-shaped cut in an oblique direction so that both ends thereof are connected to the tear strip 200 and the crease 25.

  In order to form the paper box 400, first, the left side plate 11, the front plate 12, the right side plate 13, and the back plate 14 are folded into a cylindrical shape, and the sticking plate 15 is stuck to the back surface of the left side plate 11 to form a sack shape. To.

  Next, the lower flaps 20, 20 are folded inward, the bottom adhesive plate 19 is folded inward, the bottom plate 17 is folded inward, and the bottom surface of the bottom plate 17 is placed on the surface of the bottom adhesive plate 19. Adhere to. Thereby, a bottom portion is formed.

  The stored items are put in the paper box 400 formed with the bottom portion, the upper flaps 20 and 20 are folded inward, the top adhesive plate 18 is folded inward, and the top plate 16 is further inward. And the back surface of the top plate 16 is adhered to the surface of the top surface adhesive plate 18. Thereby, the paper box 400 is boxed.

  In order to open the paper box 400, the tear strip 200 provided on the front plate 12 is pulled off from either the left or right end and removed. Then, when the upper part of the front plate 12 from which the tear band 200 has been removed is lifted, the easy-cut lines 21 and 21 are cut, folded at the crease 25, and folded back with the upper part connected as shown in FIG. Can be opened.

  Since the opened paper box 400 has a cylindrical shape with a bottom on both the upper and lower sides and is difficult to reduce the volume by crushing, the arc-shaped break lines 23 and 23 are formed on the back plate 14 in the same manner as the paper box 300. By providing it at the upper and lower ends, it can be made into a sack shape, and can be reduced in volume and discarded.

  As described above, the paper box 400 provided with the tear band 200 of the present example is provided with the tear band 200, so that it is easy to open, and the cut end after opening is beautiful. There is no fear of hurting fingers.

  In the paper box 400 of the present example, the tear strip 200 is provided only on the front plate 12, but when the tear strip 200 is also provided on the back plate 14 and opened, the tear strip 200 provided on the front plate 12 and the back plate 14. , 200 may be pulled and removed, and then the easy cutting lines 21 and 21 may be cut, and the upper portion of the paper box may be cut off and opened as in the paper box 300 described above.

100 ... opening line 200 ... tear band 300, 400 ... paper box 1 ... U-shaped cut line 1a ... straight line part 1b ... curved line part 2 ... straight cut line DESCRIPTION OF SYMBOLS 3 ... Connection part 11 ... Left side board 12 ... Front board 13 ... Right side board 14 ... Back board 15 ... Adhesion board 16 ... Top panel 17 ... Bottom board 18 ... Top adhesive plate 19 ... Bottom adhesive plate 20, 20, 20, 20 ... Flaps 21, 21, 24, 24 ... Easy cutting lines 22,22 ... Push-in auxiliary lines 23,23 ... Fracture line 25 ... Fold line

Claims (7)

  An opening line provided in a paper box, wherein a U-shaped cut line and a linear cut line are repeatedly provided via a connecting portion, and a lower end portion of the U-shaped cut line and the linear cut line An opening line, wherein the straight lines are formed on the same straight line.   The U-shaped cut line is composed of a straight line portion at a lower end portion, and a curved portion inclined outwardly in an S shape at the right end of the straight line portion and in an inverted S shape at the left end. Item 1. The opening line according to item 1.   The left and right upper ends of the U-shaped cut line are formed to be substantially parallel to a straight line in which the lower end of the U-shaped cut line and the straight line of the straight cut line are arranged. The opening line according to claim 1 or 2, characterized in that.   The left and right ends of the U-shaped cut line and the straight cut line are provided so as to overlap in the vertical direction. .   The opening line according to any one of claims 1 to 4, wherein two open ends are provided in parallel so that left and right upper ends of the U-shaped cut line face each other. Torn zone.   A paper box provided with the opening line according to any one of claims 1 to 4.   A paper box comprising the tear band according to claim 5.

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