JP2006320471A - Adhesive tape roll and perforation blade - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form perforations, which have a good use feeling and better hand tear, in an adhesive tape roll. <P>SOLUTION: The perforations 3 are formed by arranging on a straight line the 1st to 3rd breaks 31a to 31c of diverging length as the 1st to 3rd break groups 3A to 3, respectively. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for forming a perforation on an adhesive tape roll for cleaning wound so that an adhesive surface faces the front side. More specifically, the perforation has good hand cutting properties without deteriorating the feeling of use. Is to form.

  Garbage such as hair and lint attached to carpets, etc. tends to get entangled in the pile and cannot be removed with a vacuum suction cleaner. Therefore, as a tool for efficiently and easily removing this kind of dust, an adhesive cleaning tool that has an adhesive surface such as an adhesive tape in contact with the surface to be cleaned and captures the dust on the adhesive surface. Is provided.

  The cleaning tool includes an adhesive tape roll wound with the adhesive surface facing the front side, and a cleaning tool body that rotatably supports the adhesive tape roll, and adheres to the cylindrical tape support portion of the cleaning tool body. The mainstream is one that uses a tape roll inserted.

  As shown in FIG. 4, a conventional adhesive tape roll 1 is formed by winding an adhesive tape 2 having an adhesive surface 22 formed on one surface of a strip-shaped tape base material 21 so that the adhesive surface 22 faces the front side. The perforation 3 for cutting was formed along the width direction of the adhesive tape 2. Thereby, the dirty adhesive tape 2 after use can be easily separated for every round.

  For example, as shown in Patent Document 1, the perforation 3 is formed by alternately arranging cuts 31 penetrating the adhesive tape 2 and uncut portions 32 left between adjacent cuts 31. Were arranged at equal pitches with the same length.

  As a method of forming the perforation 3, a method of forming a die cut roll or the like on the winding path of the adhesive tape and forming it at the same time as the winding operation, or, for example, as shown in Patent Document 2, first the adhesive tape Is wound around a roll body, and then a comb-like plate blade is pushed into the adhesive tape roll in the radial direction.

  According to the former, since the perforation forming work can be performed in parallel with the winding work, the position and shape of the perforation 3 can be formed with high accuracy. In addition, according to the latter, since it is possible to form all the perforations 3 at once with a plate blade after forming the roll body, the working time can be shortened and the working efficiency is good.

  However, the perforations formed by the latter method have the following problems. That is, when the width of one cut line 31 is set long, the adhesive tape 2 can be cut easily, but the insertion area of the plate blade with respect to the adhesive tape 2 becomes large. There was a possibility that the adhesive tape 2 would be lifted together and raised in a convex shape. As a result, there is a risk of rattling when the cleaning surface is rolled.

  On the other hand, when the width of one cut 31 is shortened, the above-described convex phenomenon can be prevented, but since the ratio of each cut 31 included in the perforation 3 is small, it adheres along the perforation 3. When the tape 2 is cut, if an oblique force is applied to each cut line 31, the perforation 3 may be removed and the adhesive tape 2 may be wound in the winding direction. This tendency tends to appear more remarkably as the cut 31 is propagated.

Japanese Utility Model Publication No. 61-167169 JP 2004-187773 A

  Therefore, in order to solve the above-described problems, the present invention has an object to form perforations having good usability and better hand cutting properties on an adhesive tape roll.

  In order to achieve the above-described object, the present invention has several features described below. The invention according to claim 1 is formed by winding an adhesive tape having an adhesive surface on one side so that the adhesive surface faces the front side, and the perforation for cutting is along the width direction of the adhesive tape. In the adhesive tape roll provided, the perforations alternately have cuts penetrating the adhesive tape and uncut portions left between adjacent cuts, and the perforations have a length. It is characterized by comprising at least two different cuts.

  The invention according to claim 2 is characterized in that, in the above-mentioned claim 1, the length of the cut gradually increases from one end of the pressure-sensitive adhesive tape to the other end. Yes.

  According to a third aspect of the present invention, in the first or second aspect, the perforation includes a first cut group including a plurality of first cuts having a length L1, and a plurality of lengths L2 (L2> L1). It is characterized by comprising at least two cut groups of the second cut group including the second cut.

  According to a fourth aspect of the present invention, in the third aspect, the length of the first cut and the second cut is L1: L2 = 1: 2.

  According to a fifth aspect of the present invention, in the third or fourth aspect, the perforation further includes a third cut group including a plurality of third cuts having a length L3 (L3> L2). It is said.

  The invention described in claim 6 is characterized in that, in the above-mentioned claim 5, the lengths of the first to third cuts are L1: L2: L3 = 1: 2: 3.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the first cut group is arranged at one end of the adhesive tape, and the first cut is provided. A cutting guide portion for guiding cutting is provided between the group and the one end portion.

  The present invention also includes a perforated blade of an adhesive tape roll. That is, in the invention described in claim 8, the adhesive tape having an adhesive surface formed on one surface is arranged so that the adhesive surface faces the front side, and is cut along the width direction of the adhesive tape. In the perforation blade for forming the perforation, the perforation blade is formed with a plurality of insertion portions to be inserted along the thickness direction of the adhesive tape with a predetermined interval. The insertion portion is characterized in that the width of the tip gradually becomes longer from one end to any other end.

  The invention according to claim 9 has the first to third insertion portion groups in which the width of the tip of each insertion portion is composed of W1, W2, and W3, respectively, in the above-mentioned claim 8, The width of the insertion part is W1: W2: W3 = 1: 2: 3.

  The present invention also includes an adhesive tape roll in which perforations are formed by these perforation blades.

  According to the invention described in claim 1, by having at least two cuts having different lengths, not only can the adhesive tape be surely cut from one end of the cut along the other end, but also the convexity of the cut. The state can also be prevented.

  According to the second aspect of the invention, the cutting force applied to the perforation can be effectively transmitted along each cut line by gradually increasing the length of the cut line from one end side to the other end side. it can.

  According to invention of Claim 3 and 4, the adhesive tape is more reliably cut along a cut by doubling the length of the cut of the second cut group with respect to the cut of the first cut group. Can be reliably prevented.

  According to the fifth and sixth aspects of the invention, in addition to the first and second cut groups, a third cut group is further provided, and the ratio of the cut lengths is set to L1: L2: L3 = 1: 2: 3. By doing so, the adhesive tape can be more reliably cut along the cut line.

  According to the invention described in claim 7, by arranging the first cut group having a short cut, it is possible to reliably cut along the cut by providing the cutting guide portion while preventing the adhesive tape roll from being convex. Can do.

  According to invention of Claim 8, 9 and 10, the cut | interruption from which length differs can be easily formed in an adhesive tape roll by using the perforation blade which has the insertion part from which length differs.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an adhesive tape roll according to an embodiment of the present invention, and FIG. 2 is a partially enlarged plan view thereof. In addition, the same referential mark was attached | subjected to the part considered the same as that of a prior art example or the same.

  This pressure-sensitive adhesive tape roll 10 winds a pressure-sensitive adhesive tape 2 having a pressure-sensitive adhesive surface 22 formed on one surface of a tape-shaped substrate 21 in a roll shape so that the pressure-sensitive adhesive surface 22 faces the front side (the upper surface side in FIG. 1). Consists of rotating things. In addition, the presence or absence of a core when winding in a roll shape is arbitrary in the present invention. Moreover, the length of the adhesive tape roll 10, a winding diameter, tape thickness, etc. can be arbitrarily changed according to a specification.

  The base material 21 is made of, for example, paper, and an adhesive surface 22 coated with an adhesive material is formed on one surface (surface). The type of the adhesive material may be arbitrarily selected, such as strong adhesion or weak adhesion, according to the cleaning surface to be used (for example, flooring or carpet). Moreover, the material of the base material 21 may be a resin film other than paper.

  In this example, the adhesive surface 22 is applied in a uniform strip shape along the feeding direction of the adhesive tape 2, but it may also be striped or streaked, and is an adhesive for catching dust. If it functions as the surface 22, the coating form such as the coating thickness and shape can be arbitrarily changed according to the specification. Moreover, in this example, the non-adhesive parts 23 and 23 in which the adhesive material is not apply | coated are provided in the both ends of the adhesive surface 22 of the base material 21. FIG.

  It is preferable that the other surface (back surface) (not shown) of the base material 21 is provided with a release treatment surface made of, for example, silicon resin. The release treatment surface is provided so that the adhesive tape 2 on the upper layer side and the adhesive tape on the lower layer side do not stick when the adhesive tape 2 is laminated in a roll shape.

  Referring to FIG. 1 again, the adhesive tape 2 is provided with a perforation 3 for cutting almost every circumference. In the present invention, the perforation 3 refers to a cutting means used for cutting the adhesive tape 2 along the width direction.

  As shown in FIG. 2, the perforation 3 consists of what arrange | positioned alternately the cut | interruptions 31a-31c which penetrate the adhesive tape 2, and the uncut part 32 left between each adjacent cut | interruptions 31a-31b. The adhesive tape 21 is formed in a straight line along the width direction of the adhesive surface 22 (the axial direction of the roll).

  The perforation 3 is arranged such that three cuts 31a, 31b, 31c having different lengths form three cut groups 3A to 3C, respectively. The first cut group 3A is formed by alternately arranging the first cuts 31a and the uncut portions 32, and the first cuts 31a and the uncut portions 32 have a predetermined length La (in this example, La = 52 mm). ) In the range.

  The first cut 31a is a through-hole having a predetermined length L1 in the width direction, and the uncut portion 32 is left between the first cuts 31a and 31a. In this example, the average length of the first cuts 31a is L1 = 4 mm, and the length L4 of the uncut portion 32 is L4 = 2.5 mm.

  One end side (the left end side in FIG. 2) of the first cut group 3 </ b> A is formed toward the non-adhesive part 23 formed on the left end side of the adhesive tape 2. A cutting guide 4 for reliably transmitting a cutting force to the perforation 3 at the time of cutting is provided adjacent to 3A. In this example, the cutting guide 4 is formed by a cut groove formed along the radial direction of the adhesive tape roll 10.

  The next second cut group 3B is arranged on the other end side (right end side in FIG. 2) of the first cut group 3A. The second cut group 3B is formed by alternately arranging the second cuts 3b and the uncut portions 32, and the second cut 3b and the uncut portions 32 have a predetermined length Lb (in this example, Lb = 44 mm). ) In the range.

  Similarly to the first cut 31a, the second cut 31b is a through-hole penetrating the adhesive tape 2, and the uncut portion 32 is left between the adjacent second cuts 31b. The second cut 31b is formed such that its length L2 satisfies L1: L2 = 1: 2 with respect to the first cut 31a. In this example, the average length of the second cuts 31b is L1 = 8 mm, and the length L4 of the uncut portion 32 is L4 = 3.0 mm.

  According to this, by making the length of the second cut 31b twice that of the first cut 31a, the second cut 31b can be cut with a force smaller than that of the first cut 31a, and the perforation 3 is cut in the middle of cutting. It is possible to prevent tearing at an angle by escaping.

  The next third cut group 3C is arranged on the other end side of the second cut group 2B. The third cut group 3C is formed by alternately arranging the third cuts 3c and the uncut portions 32, and the third cut 3c and the uncut portions 32 have a predetermined length Lc (in this example, Lc = 45 mm). ) In the range.

  The 3rd cut 31c is also a through-hole which penetrates adhesive tape 2, and uncut part 32 is left between each 3rd cut 31c. The third cut 31c is provided such that its length L3 satisfies L1: L2: L3 = 1: 2: 3 with respect to the first cut 31a and the second cut 31b described above. In this example, the length L3 of the third cut 31c on average is L3 = 12 mm, and the length L4 of the uncut portion 32 is L4 = 3.0 mm.

  According to this, since the last part of the perforation 3 which is easy to tear diagonally when the cutting progresses is provided with the third cut 31a consisting of a long cut, the perforation is surely made to the end. The adhesive tape 2 can be cut along 3.

  In this example, the perforation 3 is formed by three first to third cuts 31a to 31c. However, the perforation 3 may be composed of at least two cuts having different lengths, in other words, , May be composed of four cuts having different lengths.

  In this perforation 3, a perforation blade attached to a dedicated insertion device (not shown) is inserted into the adhesive tape roll 10 wound in advance so that the adhesive surface 22 faces the front side by a winding device (not shown). It is formed by.

  The perforation blade 3 is made of a rectangular metal plate, and one end side (the upper end side in FIG. 3) is pointed in an inverted V shape as a blade inserted into the adhesive tape roll 10. As shown in FIG. 3, the perforated blade 3 has three insertion portions 51a, 51b, 51c having different lengths and a gap portion 52 cut out between the insertion portions 51a to 51c. And each insertion part 51a-51c is arrange | positioned on the same straight line so that three insertion part groups 5A-5C may be formed.

  It is preferable that each insertion part 51a-51c is formed so that the width | variety may become long gradually as it goes to an other end from one end. More preferably, each of the insertion portions 51a to 51b is formed so that the widths W1, W2, and W3 satisfy W1: W2: W3 = 1: 2: 3.

  In the present invention, the width of the gap 52 is not particularly limited, but in this example, the width of the gap 52 is set to 2.5 to 3.0 mm.

  According to this, since the width W1 of the first insertion portion 51a is relatively short, when inserted into the adhesive tape roll 10, the adhesive tape 2 around the perforation 3 is caused to be convex when pulled out. There is nothing.

  Further, since the third insertion portion 51c has a wide width W3, it is possible to form a wide cut (third cut 31c) that can be cut even with a small force, and the adhesive tape 2 can be cut into the perforation 3 without tearing. It can be surely separated along.

  A cutting blade 53 for forming the cutting guide 4 at the end of the adhesive tape 2 is provided on the same straight line with the insertion portions 51a to 51c at the end of the perforation blade 3 (left end side in FIG. 3). ing.

  In this example, the widths of the first to third cuts 31a to 31c and the first to third insertion portions 51a to 51c are L1 (W1): L2 (W2): L3 (W3) = 1. : 2: 3 is formed so that the length or width is gradually increased from one end side (cutting start direction) to the other end side (cutting end direction). Other aspects are also included in the present invention.

  Moreover, although each 1st-3rd cut 31a-31c and each 1st-3rd insertion part 51a-51c are arrange | positioned at each cut group 3A-3C (or insertion part group 5A-5B), You may form the perforation 3 (or the perforation blade 5) per unit by using 1-3 cuts 31a-31c (or the 1st-3rd insertion parts 51a-51c) as 1 unit.

  In this example, the perforated blade 5 is formed straight with the same width from the blade tip to the root, but the width from the blade tip to the root may be gradually increased to provide a taper. According to this, the insertion stress which concerns on the adhesive tape 2 when it inserts in a roll can be equally transmitted from an outer peripheral side to an inner peripheral side.

  Furthermore, in embodiment mentioned above, although the perforation 3 and the perforation blade 5 illustrated about the case where it forms using the plate-shaped perforation blade 5, the convex blade was provided in some metal rolls, for example. A blade portion of a so-called die cut roll may be formed as in the present invention, and such modifications are also included in the present invention.

The perspective view of the adhesive tape roll which concerns on one Embodiment of this invention. The top view of an adhesive tape roll. The front view of the perforation blade which concerns on one Embodiment of this invention. The top view of the conventional adhesive tape roll.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,10 Adhesive tape roll 2 Adhesive tape 21 Base material 22 Adhesive surface 23 Unadhesive part 3 Perforation 3A 1st cut group 3B 2nd cut group 3C 3rd cut group 31a 1st cut 31b 2nd cut 31c 3rd cut 32 Uncut portion 4 Cutting guide 5 Perforated blade 5A First insertion portion group 5B Second insertion portion group 5C Third insertion portion group 51a First insertion portion 51b Second insertion portion 51c Third insertion portion

Claims (10)

In an adhesive tape roll in which an adhesive tape having an adhesive surface formed on one side is wound so that the adhesive surface faces the front side, and a perforation for cutting is provided along the width direction of the adhesive tape. ,
The perforations alternately include cuts that penetrate the adhesive tape and uncut portions left between adjacent cuts, and the perforations include at least two cuts having different lengths. An adhesive tape roll characterized by that.   2. The pressure-sensitive adhesive tape roll according to claim 1, wherein a length of the cut gradually becomes longer from one end of the pressure-sensitive adhesive tape toward the other end.   The perforation includes at least two cut groups of a first cut group including a plurality of first cuts having a length L1 and a second cut group including a plurality of second cuts having a length L2 (L2> L1). The pressure-sensitive adhesive tape roll according to claim 1, wherein the pressure-sensitive adhesive tape roll is provided.   The length of the said 1st cut and the said 2nd cut is L1: L2 = 1: 2, The adhesive tape roll of Claim 3 characterized by the above-mentioned.   The pressure-sensitive adhesive tape roll according to claim 3 or 4, wherein the perforation further includes a third cut group including a plurality of third cuts having a length L3 (L3> L2).   The pressure-sensitive adhesive tape roll according to claim 5, wherein the length of the first to third cuts is L1: L2: L3 = 1: 2: 3.   The first cut group is arranged at one end of the adhesive tape, and a cutting guide portion for guiding cutting is provided between the first cut group and the one end. The pressure-sensitive adhesive tape roll according to any one of claims 1 to 6, wherein the pressure-sensitive adhesive tape roll is formed. A perforated blade for forming a perforation for cutting along the width direction of the pressure-sensitive adhesive tape, wherein the pressure-sensitive adhesive tape having an adhesive surface formed on one side is arranged so that the pressure-sensitive adhesive surface faces the front side In
The perforation blade is formed with a large number of insertion portions that are inserted along the thickness direction of the adhesive tape with a predetermined interval, and the insertion portion has a tip width from one end. A perforated blade characterized by being gradually longer toward one of the other ends.   Each of the insertion sections has three first to third insertion section groups each having a width of W1, W2, and W3. The width of each insertion section is W1: W2: W3 = 1: 2. The perforated blade according to claim 8, wherein An adhesive tape roll having perforations formed by the perforation blades according to claim 8 or 9.

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