Double-sided tape and tape cutter

Abstract

Provided are: double-sided tape that contributes to a reduction in the discharge of release paper; and a tape dispenser provided with the double-sided tape. Double-sided tape 1 comprises a tape body 10 and release paper 20. The tape body 10 has a top surface 12 and a bottom surface 14. The top surface 12 and the bottom surface 14 are both adhesive surfaces. The release paper 20 is affixed to the top surface 12 of the tape body 10. The release paper 20 is affixed only to portions of the top surface 12.

Description

[Technical field]

[0001] The present invention relates to a double-sided tape and a tape cutter equipped with the same. [Background technology]

[0002] An example of a conventional double-sided tape is described in Patent Document 1. The double-sided tape described in this document is wound around a circular core. Both the front and back surfaces of the double-sided tape are adhesive. However, release paper is attached to the front surface of the double-sided tape. Therefore, the adhesive surface is only exposed on the back surface of the double-sided tape. This double-sided tape is used in a state where it is rotatably held by a tape cutter. The tape cutter has a pair of side plate portions (face plates), a bottom plate portion, and a cutting blade. The pair of side plate portions cover the double-sided tape from both sides. The bottom plate portion is connected to the lower end of each side plate portion so as to connect the side plate portions to each other. The cutting blade is provided at the end portion of the bottom plate portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-48553 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned double-sided tape is fed out from the gap between a pair of side panels and cut by a cutting blade. When the cut double-sided tape (cut piece) is to be used, the release paper is peeled off from the surface. The peeled release paper is then disposed of as waste. It is desirable that such paper that is disposed of as waste be recycled. However, release paper is difficult to recycle because the paper cannot be separated from the resin that coats its surface. Therefore, from the perspective of the SDGs (Sustainable Development Goals), there is a need for ingenuity in reducing the amount of release paper generated.

[0005] The present invention has been made in consideration of the above-mentioned problems, and has an object to provide a double-sided tape that contributes to reducing the amount of release paper discarded, and a tape cutter equipped with the same. [Means for solving the problem]

[0006] The double-sided tape according to the present invention comprises a tape body having first and second adhesive surfaces, and a release paper affixed to the first surface, the release paper being affixed to only a portion of the first surface.

[0007] This double-sided tape has a tape body with both a first side and a second side being adhesive. A release paper is attached to the first side of the tape body. The release paper is attached only to a portion of the first side. In this case, the amount of release paper discharged can be reduced compared to when the release paper is attached to the entire first side.

[0008] Further, a tape cutter according to the present invention is a tape cutter used for feeding and cutting the double-sided tape, characterized in that the double-sided tape is rotatably held. Effect of the Invention

[0009] According to the present invention, a double-sided tape that contributes to reducing the amount of release paper discarded, and a tape cutter including the same are realized. [Brief description of the drawings]

[0010] [Figure 1] 1 is a side view showing one embodiment of a double-sided tape according to the present invention. [Diagram 2] 2 is a plan view showing a pull-out portion 1b of the double-sided tape of FIG. 1. FIG. [Diagram 3] 2 is a bottom view showing the pull-out portion 1b of the double-sided tape of FIG. 1. FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] 1 is a perspective view showing a first embodiment of a tape cutter according to the present invention. [Figure 6] FIG. 6 is a side view showing the tape cutter of FIG. 5. [Figure 7] FIG. 6 is a front view showing the tape cutter of FIG. 5. [Figure 8] FIG. 6 is an end view of the tape cutter of FIG. 5. [Figure 9] 6 is a side view for explaining an example of a method of using the tape cutter in FIG. 5. FIG. [Figure 10] 6 is a side view for explaining an example of a method of using the tape cutter in FIG. 5. FIG. [Figure 11] 6 is a side view for explaining an example of a method of using the tape cutter in FIG. 5. FIG. [Figure 12] FIG. 4 is a perspective view showing a second embodiment of a tape cutter according to the present invention. [Figure 13] FIG. 13 is a side view showing the tape cutter of FIG. 12. [Figure 14] FIG. 13 is a front view showing the tape cutter of FIG. 12. [Figure 15] FIG. 13 is a plan view showing the tape cutter of FIG. 12. [Figure 16] FIG. 13 is an end view of the tape cutter of FIG. 12. [Figure 17] FIG. [Figure 18] 13 is an end view for explaining an example of a method of using the tape cutter in FIG. 12. FIG. [Figure 19] 13 is an end view for explaining an example of a method of using the tape cutter in FIG. 12. FIG. [Figure 20] FIG. 13 is a plan view illustrating a modified example of the release paper 20. [Figure 21] 13 is a plan view illustrating another modified example of the release paper 20. FIG. [Figure 22] 13 is a plan view illustrating another modified example of the release paper 20. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals and duplicated description will be omitted. (First embodiment)

[0012] 1 is a side view showing one embodiment of a double-sided tape according to the present invention. Double-sided tape 1 is wound around a circular core 90. Double-sided tape 1 consists of a wound portion 1a and an pulled-out portion 1b. The wound portion 1a is the portion of double-sided tape 1 that is wound around core 90, and has a circular shape as a whole. The pulled-out portion 1b is the portion of double-sided tape 1 that is pulled out from the wound portion 1a.

[0013] 2 and 3 are a plan view and a bottom view, respectively, showing the pull-out portion 1b. Also, FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2. The double-sided tape 1 comprises a tape body 10 and a release paper 20. The tape body 10 has a front surface 12 (first surface) and a back surface 14 (second surface). Both the front surface 12 and the back surface 14 are adhesive surfaces. In this embodiment, the entire front surface 12 is an adhesive surface, and the entire back surface 14 is also an adhesive surface.

[0014] The release paper 20 is attached to the surface 12 of the tape body 10. The release paper 20 is attached only to a part of the surface 12. That is, the release paper 20 is attached only to a part of the adhesive surface of the surface 12. The release paper 20 is attached only to a part of the surface 12 in the width direction of the tape body 10 (the vertical direction in Figs. 2 and 3). Here, the width direction of the tape body 10 is a direction perpendicular to the extending direction of the tape body 10 (the horizontal direction in Figs. 2 and 3). Therefore, the width w1 of the release paper 20 is smaller than the width w2 of the tape body 10. The width w1 is preferably 20% or more and 50% or less of the width w2. As a result, in the tape body 10, a part of the surface 12 is covered with the release paper 20, while the adhesive surface is exposed on the remaining part of the surface 12 and the entire back surface 14.

[0015] The center line C1 of the release paper 20 coincides with the center line C2 of the tape body 10. The center lines C1 and C2 are imaginary straight lines that bisect the release paper 20 and the tape body 10 in the width direction, respectively. The release paper 20 is attached continuously to the surface 12 in the extension direction of the tape body 10. In other words, the release paper 20 is attached to the entire surface 12 in the extension direction of the tape body 10.

[0016] Figures 5, 6 and 7 are respectively a perspective view, a side view and a front view showing a first embodiment of a tape cutter according to the present invention. Figure 7 corresponds to a view of the tape cutter in Figure 5 seen from the right side. Also, Figure 8 is an end view showing the tape cutter in Figure 5.

[0017] The tape cutter 6 is used to feed and cut the double-sided tape 1. The double-sided tape 1 is rotatably held in the tape cutter 6. Note that the double-sided tape 1 is not shown in Figs. 5 to 7.

[0018] The tape cutter 6 includes a pair of side plate portions 30, a bottom plate portion 40, a cutting blade 50, and an adhesive portion 60. The pair of side plate portions 30 cover the double-sided tape 1 from both sides. FIG. 8 shows an end surface that is parallel to the side plate portions 30 and is located in the middle of the pair of side plate portions 30. The lower portion of each side plate portion 30 (the portion below a straight line including the insertion portion 32 described later in side view) is rectangular. On the other hand, the upper portion of each side plate portion 30 (the portion above the straight line in side view) is semicircular. The side plate portion 30 may cover the entire double-sided tape 1 from the side, or may cover only a part of it. That is, the side plate portion 30 may overlap the entire double-sided tape 1 in side view, or may overlap only a part of it. Each side plate portion 30 is plate-shaped. The material of the side plate portion 30 may be, for example, paper, plastic, metal, or wood. The paper also includes modified paper and cellulose nanofibers (CNF). The plastic may be a biodegradable plastic.

[0019] An insertion portion 32 is connected to each side plate portion 30. The insertion portion 32 is inserted into the inside of the core 90 of the double-sided tape 1 so that the double-sided tape 1 does not fall off the tape cutter 6. The insertion portion 32 is plate-shaped. The thickness direction of the insertion portion 32 is perpendicular to the thickness direction of the side plate portion 30. The two insertion portions 32 are fixed to each other in an overlapping state. As a result, the central portions of the pair of side plate portions 30 are connected to each other by the insertion portion 32. Here, the "central portion" refers to a portion other than the periphery of the side plate portion 30. It is preferable that each insertion portion 32 is formed integrally with the side plate portion 30. The material of the insertion portion 32 may be the same as or different from the material of the side plate portion 30. Each side plate portion 30 has a semicircular opening 34. The opening 34 is formed in the upper portion of each side plate portion 30. The opening 34 is large enough to allow a finger to be inserted. Therefore, the tape cutter 6 can be used by holding it in the hand with fingers inserted into the opening 34. The insertion portion 32 is connected to the lower end of the opening 34.

[0020] The bottom plate portion 40 is connected to the lower end 30a of each side plate portion 30. As a result, the lower ends 30a of a pair of side plate portions 30 are connected to each other by the bottom plate portion 40. The bottom plate portion 40 may be connected to the entire lower end 30a of each side plate portion 30, or may be connected to only a part of it. The bottom plate portion 40 has a plate shape. The thickness direction of the bottom plate portion 40 is perpendicular to the thickness direction of the side plate portion 30 and is equal to the thickness direction of the insertion portion 32. It is preferable that the bottom plate portion 40 is formed integrally with the side plate portion 30. The material of the bottom plate portion 40 may be the same as or different from the material of the side plate portion 30.

[0021] The cutting blade 50 is provided at an end of the bottom plate portion 40. The cutting blade 50 is fixed on the bottom plate portion 40. The cutting blade 50 cuts the double-sided tape 1 while being in contact with the front surface 12 side (release paper 20) of the tape body 10. The tip of the cutting blade 50 protrudes from the bottom plate portion 40. The tip of the cutting blade 50 is spaced from the wound portion 1a. As a result, the cutting blade 50 cuts the double-sided tape 1 leaving a certain length of the pulled-out portion 1b. The material of the cutting blade 50 may be the same as or different from the material of the side plate portion 30. The cutting blade 50 may be formed integrally with the bottom plate portion 40.

[0022] The adhesion part 60 is provided above the cutting blade 50. As shown in FIG. 8, the back surface 14 of the tape body 10 is adhered to the adhesion part 60 with the end 1c of the double-sided tape 1 (pulled-out part 1b) floating above the cutting blade 50. Specifically, the back surface 14 is adhered to the tip 62 of the adhesion part 60. The tip 62 is equal to the lower end of the adhesion part 60. The tip 62 (the part that comes into contact with the back surface 14) may be flat or may have an uneven surface. The width of the adhesion part 60 becomes monotonically smaller as it approaches the tip 62. The width w3 of the tip 62 (see FIG. 7) is smaller than the width w2 of the tape body 10. The width w3 is preferably 50% or less of the width w2, and more preferably 20% or less.

[0023] The adhesive portion 60 is connected to each side plate portion 30. Specifically, the adhesive portion 60 is connected to the side end 30b of each side plate portion 30. The side end 30b is a portion located at the lower part of the periphery of the side plate portion 30 other than the lower end 30a. The side end 30b is linear. As a result, the side ends 30b of the pair of side plate portions 30 are connected to each other by the adhesive portion 60. The side ends 30b of the pair of side plate portions 30 are connected to each other only by the adhesive portion 60. Therefore, the side ends 30b of the pair of side plate portions 30 are not connected to each other on the opposite side of the adhesive portion 60. In addition, the upper ends 30c of the pair of side plate portions 30 are not connected to each other. The upper ends 30c are a portion located at the upper part of the periphery of the side plate portion 30 other than the lower ends 30a. The upper ends 30c are curved.

[0024] The distance d1 (see FIG. 7) from the cutting blade 50 to the adhesive portion 60 (tip 62) in the vertical direction is preferably equal to or greater than the distance d2 between the pair of side plate portions 30. The vertical direction is equal to the thickness direction of the bottom plate portion 40 (vertical direction in FIGS. 5 to 7). The distance d1 is preferably equal to or greater than 10 mm, and more preferably equal to or greater than 15 mm. The adhesive portion 60 may or may not be detachable from the pair of side plate portions 30. Here, detachable means that the adhesive portion 60 can be repeatedly attached and detached from the side plate portions 30 without damaging the side plate portions 30 and the adhesive portion 60.

[0025] In a side view, the tip portion 62 is located on the side end 30b of the side plate portion 30. In a plan view, the tip portion 62 may or may not overlap the tip of the cutting blade 50. That is, the tip portion 62 may be located directly above the tip of the cutting blade 50, or may be located diagonally above. In the latter case, it is preferable that the distance (horizontal distance) from the tip of the cutting blade 50 to the tip portion 62 in a plan view is smaller than the distance d1. The adhesive portion 60 has a plate shape. The thickness direction of the adhesive portion 60 is perpendicular to both the thickness direction of the side plate portion 30 and the thickness direction of the bottom plate portion 40. It is preferable that the thickness of the adhesive portion 60 is equal to the thickness of each side plate portion 30. The adhesive portion 60 may be formed integrally with the side plate portion 30. The material of the adhesive portion 60 may be the same as or different from the material of the side plate portion 30.

[0026] An example of a method of using the tape cutter 6 will be described with reference to Figs. 9 to 11. First, as shown in Fig. 9, the double-sided tape 1 (pulled-out portion 1b) is pinched with fingers, peeled off from the affixed portion 60, and then pulled along the bottom plate portion 40. As a result, the double-sided tape 1 is unwound from between the bottom plate portion 40 and the affixed portion 60. Next, as shown in Fig. 10, the surface 12 and the release paper 20 of the tape body 10 are pressed against the tip of the cutting blade 50 to cut the double-sided tape 1. Thereafter, as shown in Fig. 11, the back surface 14 of the tape body 10 is affixed again to the affixed portion 60. At this time, it is preferable that the end 1c of the double-sided tape 1 protrudes from the tip portion 62. The pulled-out portion 1b is affixed only to the affixed portion 60. That is, the tape cutter 6 is configured so that the pulled-out portion 1b is not affixed to any portion of the tape cutter 6 other than the affixed portion 60. In this manner, the double-sided tape 1 is unwound from the tape cutter 6 to obtain a cut piece of a desired length.

[0027] The effects of this embodiment will be described. The double-sided tape 1 is provided with a tape body 10 in which both the front surface 12 and the back surface 14 are adhesive surfaces. A release paper 20 is attached to the front surface 12 of the tape body 10. The release paper 20 is attached only to a portion of the front surface 12. In this case, the amount of release paper 20 discarded can be reduced compared to when the release paper 20 is attached to the entire front surface 12. Therefore, a double-sided tape 1 that contributes to reducing the amount of release paper 20 discarded, and a tape cutter 6 equipped with the same have been realized.

[0028] Providing the release paper 20 in this manner brings about the following advantages. First, it is possible to unwind the double-sided tape 1 without touching the adhesive surface of the front surface 12 of the tape body 10. This makes it easier to pull the double-sided tape 1 and also makes it less likely that fingerprints will be left on the front surface 12. It also makes it possible to prevent dust from adhering to the adhesive surface of the front surface 12 and to prevent a decrease in the adhesive strength of the adhesive surface. Furthermore, since the shape of the tape body 10 is stable, the tape body 10 is less likely to twist. This allows the double-sided tape 1 to be unwound smoothly.

[0029] The width w1 of the release paper 20 is smaller than the width w2 of the tape body 10. This allows the release paper 20 to be provided only on a portion of the width direction of the tape body 10. In this case, it is possible to realize a configuration in which the release paper 20 is provided over the entire extension direction of the tape body 10, while the release paper 20 is attached only to a portion of the surface 12.

[0030] Reducing the width w1 of the release paper 20 is advantageous in reducing the amount of release paper 20 discarded. From this perspective, it is preferable that the width w1 be 50% or less of the width w2 of the tape body 10. On the other hand, if the width w1 is too small, it may not be possible to fully enjoy the above-mentioned advantages of providing the release paper 20. From this perspective, it is preferable that the width w1 be 20% or more of the width w2.

[0031] The center line C1 of the release paper 20 coincides with the center line C2 of the tape body 10. In this case, since the release paper 20 is not unevenly distributed in the width direction of the tape body 10, the double-sided tape 1 can be smoothly unwound while pinching the portion where the release paper 20 is provided.

[0032] The release paper 20 is continuously attached to the surface 12 in the extending direction of the tape body 10. In this case, the pull-out portion 1b of the double-sided tape 1 is less likely to slacken. This makes it possible to prevent the adhesive surfaces of the pull-out portions 1b from sticking to each other.

[0033] The entire surface 12 of the tape body 10 is an adhesive surface. This allows the double-sided tape 1 to stably fix objects to be bonded together.

[0034] The double-sided tape 1 is rotatably held in the tape cutter 6. This allows the double-sided tape 1 to be easily unwound.

[0035] In the tape cutter 6, an adhesion part 60 is provided above the cutting blade 50. The back surface 14 of the tape body 10 is adhered to the adhesion part 60 with the end 1c of the double-sided tape 1 floating above the cutting blade 50. This ensures a gap between the end 1c of the double-sided tape 1 and the cutting blade 50, making it easier to pick up the double-sided tape 1 with fingers.

[0036] By adhering the double-sided tape 1 to the attachment portion 60 in this manner, it is possible to prevent the double-sided tape 1 from unwinding (the pulled-out portion 1b returning to the wound portion 1a). In addition, since the double-sided tape 1 can be pinched at a position away from the cutting blade 50, it is difficult for fingers to come into contact with the cutting blade 50 when the double-sided tape 1 is unwound. This improves the safety of the tape cutter 6.

[0037] The greater the distance d1 from the cutting blade 50 to the adhering portion 60 in the vertical direction, the wider the gap between the end 1c of the double-sided tape 1 and the cutting blade 50, which is advantageous for making it easier to pick up the double-sided tape 1. From this perspective, it is preferable that the distance d1 is equal to or greater than the interval d2 between the pair of side plate portions 30. From the same perspective, it is preferable that the distance d1 is equal to or greater than 10 mm, and more preferably equal to or greater than 15 mm. On the other hand, if the distance d1 is too large, it may be difficult to secure a place for the adhering portion 60 on the tape cutter 6. From this perspective, it is preferable that the distance d1 is equal to or less than 50 mm.

[0038] The adhesive portion 60 is connected to each side plate portion 30. In this case, the adhesive portion 60 can also function as a member for maintaining the shape of the tape cutter 6 (the shape in which the pair of side plate portions 30 face each other at a predetermined interval).

[0039] The adhesive portion 60 is connected to the side end 30b of each side plate portion 30. This makes it easier to align the tip portion 62 of the adhesive portion 60 with the side end 30b of the side plate portion 30. In fact, in the tape cutter 6, the tip portion 62 is located on the side end 30b of the side plate portion 30 in a side view. In this case, since the tip portion 62 does not enter the back of the space sandwiched between the pair of side plate portions 30, it is advantageous in making it easier to pick up the double-sided tape 1 attached to the adhesive portion 60 with fingers.

[0040] The width w3 of the tip portion 62 is smaller than the width w2 of the tape body 10. In this case, by changing the width w3, the contact area between the tip portion 62 and the tape body 10, and therefore the adhesive strength between the adhesive portion 60 and the tape body 10, can be adjusted. This increases the options for the material of the adhesive portion 60, making it easier to form the adhesive portion 60 integrally with other portions (the side plate portion 30, the bottom plate portion 40, and / or the cutting blade 50). However, the width w3 may be equal to the width w2 or larger than the width w2. For example, the width w3 may be equal to the interval d2 between a pair of side plate portions 30.

[0041] When the thickness of the adhesive portion 60 is equal to the thickness of each of the side plate portions 30, it becomes easier to form the side plate portions 30 and the adhesive portion 60 from a single sheet of uniform thickness.

[0042] When the adhesive portion 60 is made of the same material as the pair of side plate portions 30 and bottom plate portion 40, it becomes easy to integrally form the side plate portions 30, the bottom plate portion 40, and the adhesive portion 60. By integrally forming the side plate portions 30, the bottom plate portion 40, and the adhesive portion 60 in this manner, the manufacturing process of the tape cutter 6 can be simplified, and the manufacturing cost of the tape cutter 6 can be reduced.

[0043] When the adhesive portion 60 is detachable from the pair of side plate portions 30, it is possible to replace only the adhesive portion 60 with a new one. Second embodiment

[0044] Figures 12, 13, 14 and 15 are respectively a perspective view, a side view, a front view and a plan view showing a second embodiment of the tape cutter according to the present invention. Figure 14 corresponds to a view of the tape cutter in Figure 12 seen from the right side. Also, Figure 16 is an end view showing the tape cutter in Figure 12.

[0045] The tape cutter 8 is used to feed and cut the double-sided tape 1. The double-sided tape 1 is rotatably held in the tape cutter 8. Note that the double-sided tape 1 is not shown in Figs. 12 to 15.

[0046] The tape cutter 8 includes a pair of side plate portions 30, a bottom plate portion 40, and a guide portion 70. The pair of side plate portions 30 cover the double-sided tape 1 from both sides. FIG. 16 shows an end face that is parallel to the side plate portions 30 and is located in the middle between the pair of side plate portions 30. The side plate portions 30 cover only a part of the wound portion 1a of the double-sided tape 1 from the side. In other words, the side plate portions 30 overlap only a part of the wound portion 1a in a side view. Each side plate portion 30 has a rectangular plate shape. Each side plate portion 30 has a notch 38 formed therein, which serves as an insertion port for a claw portion 78 described later.

[0047] An insertion portion 32 is connected to each side plate portion 30. The insertion portion 32 is inserted into the inside of the core 90 of the double-sided tape 1 so that the double-sided tape 1 does not fall off the tape cutter 8. The insertion portion 32 is plate-shaped. The thickness direction of the insertion portion 32 is perpendicular to the thickness direction of the side plate portion 30. The insertion portion 32 is connected to the upper end 30c of each side plate portion 30. The two insertion portions 32 are fixed to each other in an overlapping state. As a result, the upper ends 30c of the pair of side plate portions 30 are connected to each other by the insertion portion 32. It is preferable that each insertion portion 32 is formed integrally with the side plate portion 30. The material of the insertion portion 32 may be the same as or different from the material of the side plate portion 30.

[0048] The bottom plate portion 40 is connected to the lower end 30a of each side plate portion 30. As a result, the lower ends 30a of a pair of side plate portions 30 are connected to each other by the bottom plate portion 40. The bottom plate portion 40 may be connected to the entire lower end 30a of each side plate portion 30, or may be connected to only a part of it. The bottom plate portion 40 has a plate shape. The thickness direction of the bottom plate portion 40 is perpendicular to the thickness direction of the side plate portion 30 and is equal to the thickness direction of the insertion portion 32. It is preferable that the bottom plate portion 40 is formed integrally with the side plate portion 30. The material of the bottom plate portion 40 may be the same as or different from the material of the side plate portion 30.

[0049] The guide portion 70 guides the pull-out portion 1b of the double-sided tape 1 within a predetermined range between the side ends 30b of the pair of side plate portions 30. That is, the guide portion 70 guides the pull-out portion 1b so that the pull-out portion 1b intersects with the side ends 30b within a predetermined range in a side view. The guide portion 70 is spaced apart from the bottom plate portion 40. The guide portion 70 is connected to each side plate portion 30. Specifically, the guide portion 70 is connected to the side ends 30b of each side plate portion 30. As a result, the side ends 30b of the pair of side plate portions 30 are connected to each other by the guide portion 70. In this embodiment, the side ends 30b of the pair of side plate portions 30 are connected to each other only by the guide portion 70. Therefore, the side ends 30b of the pair of side plate portions 30 are not connected to each other on the opposite side of the guide portion 70. The material of the guide portion 70 may be the same as or different from the material of the side plate portions 30.

[0050] FIG. 17 is a perspective view showing the guide portion 70. The guide portion 70 has an opening 72, an adhesive portion 74, a cutting blade 76, and a claw portion 78. The opening 72 is a portion through which the drawn-out portion 1b of the double-sided tape 1 passes. The opening 72 is spaced apart from the bottom plate portion 40. In a side view, the opening 72 overlaps with the side end 30b of the side plate portion 30. A perpendicular line of a plane including the entire opening 72 is perpendicular to both the thickness direction of the side plate portion 30 and the thickness direction of the bottom plate portion 40. The above-mentioned "predetermined range" is equal to the range of the opening 72. In a front view, the opening 72 has a horizontally long rectangular shape. The length d3 (see FIG. 14) of the opening 72 in the left-right direction (equal to the thickness direction of the side plate portion 30) is smaller than the interval d2 between a pair of side plate portions 30. The length d3 is greater than the width w2 of the tape body 10.

[0051] The adhesive portion 74 is connected to the opening 72. Specifically, the adhesive portion 74 is connected to the upper end of the opening 72. The adhesive portion 74 protrudes from the opening 72 toward the outside of the pair of side plate portions 30. As shown in FIG. 16, the pull-out portion 1b of the double-sided tape 1 is attached to the adhesive portion 74. Specifically, the back surface 14 of the pull-out portion 1b is attached to an adhesive surface 74a of the adhesive portion 74. The adhesive surface 74a is equal to the lower surface of the adhesive portion 74. The adhesive surface 74a is flat. The adhesive surface 74a is parallel to the bottom plate portion 40. The width w4 (see FIG. 15) of the adhesive portion 74 is smaller than the width w2 of the tape body 10. The width w4 is defined as the dimension of the adhesive surface 74a in the left-right direction. The width w4 is preferably 50% or less of the width w2, and more preferably 20% or less.

[0052] The cutting blade 76 cuts the drawn-out portion 1b that has passed through the opening 72. The opening 72 and the adhesive portion 74 are provided along the drawn-out portion 1b between the rolled portion 1a and the cutting blade 76. The tip of the cutting blade 76 faces outward (away from the side end 30b) so as to easily cut the drawn-out portion 1b. The tip of the cutting blade 76 protrudes from the side end 30b of the side plate portion 30 in side view. The tip of the cutting blade 76 is located inside the adhesive portion 74 in side view. That is, the distance d4 from the tip of the cutting blade 76 to the side end 30b (see FIG. 13) is smaller than the distance d5 from the tip of the adhesive portion 74 to the side end 30b. The tip of the cutting blade 76 is spaced from the adhesive portion 74. The tip of the cutting blade 76 is also spaced from the bottom plate portion 40. That is, in the up-down direction of the side plate portion 30, the tip of the cutting blade 76 is located between the adhesion portion 74 and the bottom plate portion 40. The cutting blade 76 is provided at the lower end of the guide portion 70. The width of the cutting blade 76 is equal to or greater than the width w2 of the tape body 10.

[0053] The material of the cutting blade 76 may be the same as or different from the material of the other parts of the guide part 70. In the latter case, for example, it is conceivable to use metal as the material of the cutting blade 76 and paper as the material of the other parts. Also, the cutting blade 76 may be formed integrally with the other parts of the guide part 70, or may be formed separately from the other parts and then attached to the other parts.

[0054] The claws 78 are portions for attaching the guide 70 to the side plate 30. The claws 78 extend from both ends of the guide 70 toward the inside of the pair of side plate 30. However, in FIG. 17, one of the two claws 78 is omitted from illustration. The guide 70 can be attached to the side plate 30 by inserting the claws 78 into the notches 38 of the side plate 30. In this embodiment, the claws 78 are inserted from the outer surface of each side plate 30 toward the inner surface. The guide 70 can be removed from the side plate 30 by pulling the claws 78 out of the notches 38. In this way, the guide 70 is detachable from the pair of side plate 30. Here, being detachable means that the guide 70 can be repeatedly attached and detached to and from the side plate 30 without damaging the side plate 30 and the guide 70.

[0055] An example of a method of using the tape cutter 8 will be described with reference to Figs. 18 and 19. First, as shown in Fig. 18, the double-sided tape 1 (pulled-out portion 1b) is pinched with fingers, peeled off from the affixed portion 74, and then pulled to the outside of the side plate portion 30. As a result, the double-sided tape 1 is fed out from the gap between the side ends 30b of the pair of side plate portions 30 through the opening 72. Next, as shown in Fig. 19, the surface 12 and the release paper 20 of the tape body 10 are pressed against the tip of the cutting blade 76 to cut the double-sided tape 1. Thereafter, the back surface 14 of the tape body 10 is attached again to the affixed portion 74 (see Fig. 16). At this time, it is preferable that the end 1c of the double-sided tape 1 protrudes from the tip of the affixed portion 74. In this manner, the double-sided tape 1 is fed out from the tape cutter 8 to obtain a cut piece of the desired length.

[0056] The effects of this embodiment will be described. The double-sided tape 1 is provided with a tape body 10 in which both the front surface 12 and the back surface 14 are adhesive surfaces. A release paper 20 is attached to the front surface 12 of the tape body 10. The release paper 20 is attached only to a portion of the front surface 12. In this case, the amount of release paper 20 discarded can be reduced compared to when the release paper 20 is attached to the entire front surface 12. Therefore, a double-sided tape 1 that contributes to reducing the amount of release paper 20 discarded, and a tape cutter 8 equipped with the same have been realized.

[0057] In the tape cutter 8, a guide portion 70 is provided to guide the drawn-out portion 1b of the double-sided tape 1 within a predetermined range between the side ends 30b of the pair of side plate portions 30. The guide portion 70 has an opening 72 spaced apart from the bottom plate portion 40. The drawn-out portion 1b that has passed through the opening 72 is cut by a cutting blade 76. The drawn-out portion 1b after being cut is attached to an attachment portion 74 connected to the opening 72. This maintains the state in which the drawn-out portion 1b has passed through the opening 72, making it possible to pick up the drawn-out portion 1b at a position spaced apart from the bottom plate portion 40. This makes it easier to pick up the drawn-out portion 1b of the double-sided tape 1 when unwinding it. Also, by attaching the double-sided tape 1 to the attachment portion 74 in this manner, it is possible to make it difficult for the double-sided tape 1 to rewind.

[0058] The adhesive portion 74 protrudes from the opening 72 toward the outside of the pair of side plates 30. This makes it easier to pick up the drawer portion 1b attached to the adhesive portion 74, compared to a case in which the adhesive portion 74 protrudes toward the inside of the side plates 30. However, the adhesive portion 74 may protrude from the opening 72 toward the inside of the pair of side plates 30. In that case, the adhesive portion 74 is sandwiched between the pair of side plates 30.

[0059] The tip of the cutting blade 76 is located inside the adhesive portion 74 in a side view. In this case, the cutting blade 76 is retracted from the adhesive portion 74, which can improve the safety of the tape cutter 8. However, the tip of the cutting blade 76 may be located outside the adhesive portion 74 in a side view.

[0060] The tip of the cutting blade 76 is spaced apart from the adhesive portion 74. In this case, the pull-out portion 1b attached to the adhesive portion 74 can be pinched at a position away from the cutting blade 76, making it difficult for fingers to touch the cutting blade 76 when unwinding the double-sided tape 1. This improves the safety of the tape cutter 8.

[0061] The width w4 of the adhesive portion 74 is smaller than the width w2 of the tape body 10. In this case, by changing the width w4, the contact area between the adhesive portion 74 and the pull-out portion 1b, and therefore the adhesive strength between the adhesive portion 74 and the pull-out portion 1b, can be adjusted. This increases the options for the material of the adhesive portion 74. However, the width w4 may be equal to the width w2 or greater than the width w2. For example, the width w4 may be equal to the length d3 of the opening 72 in the left-right direction.

[0062] In a side view, the opening 72 overlaps with the side end 30b of the side plate portion 30. By aligning the position of the opening 72 with the side end 30b in this manner, it is possible to reliably guide the pull-out portion 1b of the double-sided tape 1 into a predetermined range between the side ends 30b of the pair of side plate portions 30.

[0063] The guide portion 70 is connected to each side plate portion 30. In this case, the guide portion 70 can also function as a member for maintaining the shape of the tape cutter 8.

[0064] The guide portion 70 is connected to the side end 30b of each side plate portion 30. This makes it easier to align the position of the opening 72 with the side end 30b of the side plate portion 30.

[0065] The guide portion 70 is detachable from the pair of side plate portions 30. This makes it possible to replace only the guide portion 70 with a new one. However, the guide portion 70 does not have to be detachable from the side plate portions 30. In that case, the guide portion 70 may be formed integrally with the side plate portions 30, or may be formed separately from the side plate portions 30 and then attached to the side plate portions 30. Such attachment may be performed using, for example, an adhesive.

[0066] The present invention is not limited to the above embodiment, and various modifications are possible. In the above embodiment, the center line C1 of the release paper 20 coincides with the center line C2 of the tape body 10. However, the center line C1 may be offset from the center line C2, for example, as shown in FIG. 20.

[0067] In the above embodiment, the release paper 20 is continuously attached to the surface 12 in the extension direction of the tape body 10. However, the release paper 20 may be intermittently attached to the surface 12 in the extension direction of the tape body 10, for example, as shown in Figure 21. In this figure, the release paper 20 is attached to only a part of the surface 12 in the extension direction of the tape body 10.

[0068] In the above embodiment, the width w1 of the release paper 20 is smaller than the width w2 of the tape body 10. However, the width w1 may be equal to the width w2, for example, as shown in Fig. 22. In this figure, the release paper 20 is intermittently attached to the surface 12 in the extension direction of the tape body 10.

[0069] In the above embodiment, the case where the entire front surface 12 of the tape body 10 is an adhesive surface has been exemplified. However, only a portion of the front surface 12 may be an adhesive surface. Similarly, only a portion of the back surface 14 may be an adhesive surface. In this manner, when only a portion of the front surface 12 is an adhesive surface, it is preferable that the release paper 20 is attached only to a portion of the adhesive surface of the front surface 12.

[0070] In the above embodiment, the release paper 20 is attached to the front surface 12 of the tape body 10. However, the release paper 20 may be attached to the back surface 14 of the tape body 10. In that case, the back surface 14 corresponds to the "first surface" and the front surface 12 corresponds to the "second surface." [Explanation of symbols]

[0071] 1 Double-sided tape 1a Winding section 1b Drawer part 1c end 6. Tape cutter 8. Tape Cutter 10 Tape body 12 Surface (first surface) 14 Back side (second side) 20 Release paper 30 Side plate part 30a bottom end 30b side edge 30c top end 32 Insertion part 34 Opening 38 Cutting 40 Bottom plate part 50 cutting blade 60 Adhesive part 62 Tip 70 Information Department 72 Aperture 74 Adhesive part 74a Adhesive side 76 Cutting blade 78 Claw 90 cores

Claims

1. a tape body having first and second adhesive surfaces; a release paper attached to the first surface, the release paper is attached to only a portion of the first surface; The width of the release paper is smaller than the width of the tape body, A double-sided tape, characterized in that the center line of the release paper coincides with the center line of the tape body.

2. The double-sided tape according to claim 1, A double-sided tape, wherein the width of the release paper is 50% or less of the width of the tape body.

3. The double-sided tape according to claim 1, A double-sided tape, wherein the width of the release paper is 20% or more of the width of the tape body.

4. The double-sided tape according to claim 1, The release paper is attached continuously to the first surface in the extending direction of the tape body.

5. The double-sided tape according to any one of claims 1 to 4, A double-sided tape in which the entire first surface is the adhesive surface.

6. A tape cutter comprising the double-sided tape according to any one of claims 1 to 4.

7. 7. The tape cutter according to claim 6, A pair of side plates covering the double-sided tape from both sides; a bottom plate portion connected to the lower ends of the side plate portions; a cutting blade provided at an end of the bottom plate portion and configured to cut the double-sided tape while in contact with the first surface side of the tape body; an attachment portion provided above the cutting blade, to which the second surface is attached in a state in which an end of the double-sided tape is separated from the cutting blade; A tape cutter equipped with

8. 8. The tape cutter according to claim 7, A tape cutter, wherein the distance from the cutting blade to the adhesive portion in the vertical direction is equal to or greater than the distance between the pair of side plate portions.

9. 8. The tape cutter according to claim 7, The adhesive portion is a tape cutter connected to each of the side plate portions.

10. 10. The tape cutter according to claim 9, The adhesive portion is a tape cutter connected to a side end of each of the side plate portions.

11. 8. The tape cutter according to claim 7, A tape cutter in which the width of the tip of the adhesive portion is smaller than the width of the tape body.

12. 8. The tape cutter according to claim 7, A tape cutter in which the thickness of the adhesive portion is equal to the thickness of each of the side plate portions.

13. 8. The tape cutter according to claim 7, The adhesive portion is made of the same material as the pair of side plate portions and the bottom plate portion.

14. 8. The tape cutter according to claim 7, The adhesive portion is detachable from the pair of side plate portions.

15. 7. The tape cutter according to claim 6, A pair of side plates covering the double-sided tape from both sides; a bottom plate portion connected to the lower ends of the side plate portions; a guide portion that guides the drawn-out portion of the double-sided tape within a predetermined range between the side ends of the pair of side plate portions, The guide unit is an opening spaced from the bottom plate portion through which the drawer portion passes; an attachment portion provided adjacent to the opening and to which the pull-out portion is attached; a cutting blade that cuts the drawn-out portion that has passed through the opening.

16. 16. The tape cutter according to claim 15, The adhesive portion of the tape cutter protrudes from the opening toward the outside of the pair of side plate portions.

17. 16. The tape cutter according to claim 15, A tape cutter in which a tip of the cutting blade is spaced apart from the adhesive portion.

18. 16. The tape cutter according to claim 15, A tape cutter in which the width of the adhesion portion is smaller than the width of the tape body.

19. 16. The tape cutter according to claim 15, The opening of the tape cutter overlaps with the side end of the side plate portion in a side view.

20. 16. The tape cutter according to claim 15, The guide portion is a tape cutter connected to each of the side plate portions.

21. 21. The tape cutter according to claim 20, The guide portion is a tape cutter connected to the side ends of each of the side plate portions.

22. 16. The tape cutter according to claim 15, The guide portion is detachably attached to the pair of side plate portions.

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