JP3878655B1 - Safe tape cutter - Google Patents

Abstract

An adhesive tape cutter having a simple structure with no movable parts that can be used safely and easily by anyone who does not have to worry about touching a cutting blade with fingers, and that can be produced at low cost.
Instead of cutting the entire width of the tape with a cutting blade, a small blade is used to make a cut on one side of the tape, and the breakage is advanced with a light finger force starting from it, and the small blade is safely enclosed. Like that. For tape materials that are difficult to cut by this method, the workability is somewhat worse, but the blade and finger protection part are made longer than the tape width without changing the basic structure.
[Selection] Figure 7

Description

  The present invention relates to a tape cutter used when a tape end such as an adhesive wound tape is peeled off and cut to a required length.

  There are many proposals to improve the conventional tape cutter blades that have been on the market as dangerous. These proposed methods can be roughly classified as follows. (A) A type having a protective cover on the cutting blade of the tape, and when the cutting is performed, the protective cover is automatically moved so that the protective cover is removed to expose the cutting blade, and the protective cover automatically returns after cutting; (B) A type in which a manual protective cover is provided for the cutting blade; JP-A-2002-307373. (C) A type in which the cutting blade can be moved and stored; JP-A-10-129919, Noto 3105527. (D) A type capable of automatically operating / storing the cutting blade, Joto 3118314 (E) A type capable of completing the pasting and cutting simply by operating the entire holding body of the wound tape; JP 2001-146356; (F) Loosely fixed cutting blade; (G) A type in which the tape can be moved onto the blade through a gap between the two finger-protecting portions located at a fixed position on the blade; However, most of these have moving parts and are somewhat complicated in structure, which would increase production costs. Also, there are things that cannot be said to be safe in any case.

JP 09-208114 JP2002-307373 JP-A-10-129919 JP2001-146356 Noto 3105527 Actual climbing 3095907 Jito 3118314 Real climb 3009748

The present invention solves the following problems in a scene where an end portion is pulled out from an adhesive winding tape and cut into a necessary length.
Use a tape cutting blade to create a safe tape cutter that will not injure your fingers. Make it safe to use without fear of injury.
Allow the tape to be cut with light force. Also, the cutting line is not serrated.
Aside from fixing the winding tape, the tape can be cut by an operation with only one hand having a tape end, as in the conventional product.
The cutting end on the side of the wound tape remaining after cutting is made easy to grasp so that the next tape cutting can be easily performed.
A simple structure that can be produced at low cost and easy for anyone to use.

To solve the above problem,
Rather than trying to cut with a cutting blade across the entire width of the tape, a short blade can be used to easily make a small cut in a part of one side of the tape, and then the movement of the finger with the tape end A method in which shear breakage is propagated and progressed from the break as a starting point is used.
By covering the short blade with a C-shaped enclosure (hand protector), you can easily insert a part of one side of the tape through the gap of the enclosure and apply it to the blade edge to make a cut. Avoid touching the cutting edge.
The method (1) can be used when the material of the tape is a material with little elongation, but when the material is a material with a large amount of elongation such as soft vinyl chloride, it cannot be cut cleanly. In this case, it is difficult to apply the tape to the blade through the gap. However, the C-blade is extended to the side and the cutting blade is lengthened accordingly, so that the entire width of the tape is cut with the cutting blade. To.
Thus, it is set as the tape cutter of a simple structure without a movable part which consists only of a blade, a finger protection part, and the base to which they are attached.

The effects of the present invention are as follows.
It can be used with the same simple sensation as a conventional tape cutter, but it is safe and the upper cutting line can be made not to be serrated.
Since it has a simple structure with no moving parts, it can be produced at low cost and will not break down.
The cut end on the winding tape side can be adhered and left on the upper surface of the base, and the end for cutting the next tape can be easily pulled out.
The structure of the present invention can be applied to a cutting portion of a conventionally used tape cutter as a part thereof.

  1 to 3 show a general adhesive tape currently on the market and a tape cutter attached thereto. FIG. 4 shows only the tape cutter of FIG. 1, but it can be clearly seen that the cutting blade is a bare saw-tooth shape. The cutting blades of FIG. 2 and FIG. 3 are also such a sawtooth shape. When this sawtooth-shaped cutting blade is enlarged, as shown in FIG. 5, the peak portion is not sharp but rounded. Because of this roundness, you won't be injured if you don't apply your fingers. However, the sharpness of the tape cutting is poor, and the end of the tape held between fingers must be pulled down relatively strongly and cut so that it can be scraped off. Also, the cutting line is serrated and not clean. The present invention is intended to ensure that the tape cutter can be used safely while maintaining the simplicity of the tape cutter.

  A typical example of the present invention is shown in FIGS. The finger protection unit 2 covers the upper edge of the blade 1 so that the finger is not cut by mistake. However, it can be easily inserted from the gap of the finger protection unit 2 with one side of the drawn-out tape facing the blade edge. Thus, a small cut can be given to a part of one side of the tape. There are various types of film materials used for adhesive tape, but many of them easily shear and break. As shown in FIG. 8, it is possible to cut the tape by proceeding with the breakage starting from the small break that is given first, by simply pushing the end of the tape held between fingers gently toward the lower side of the base 3 as shown in FIG. . FIG. 6 schematically illustrates the state of propagation of the fracture.

  After the tape is cut, the cut end of the tape 6 (see FIG. 8) remaining on the wound tape side sticks to the upper surface of the base 3, so that the finger is placed between the tape 6 and the wound tape 5 in the next tape cutting operation. The next tape end face can be easily pulled out by inserting. Further, even if the next tape cutting is not performed immediately, it is convenient that the cut end does not return to the original winding tape 5 and sticks and the end face cannot be easily pulled out. Therefore, if the work using the winding tape is to be finished, the adhesive surface side of the tape 6 may be attached to the front surface of the base 3 (left side in FIG. 8).

  Within the C-shaped finger protection unit, several methods are conceivable depending on the shape and position of the blade.For example, if the blade tip is inclined as shown in FIG. It becomes easier to make a cut. For safety reasons, the upper and lower gaps of the C-shaped finger protection unit are preferably 5 mm or less, and the distance from the blade edge to the inner surface of the finger protection unit is 2 mm or less. The length of the blade is 3 mm or less, and the finger protection part covers the blade tip beyond the tip of the blade by at least 2 mm, and the position of the upper end of the base part almost twists the drawn tape. It is easy to use if it can be placed on the blade without any problems.

  FIG. 10 schematically shows a state viewed from above when the tape is cut by the tape cutter of the present invention as shown in FIG. 9 or FIG. This shows that the breakage progressed along the break line 10 after the first cut was made with the blade 1. The end face of the uncut tape 6 remains adhered to the upper surface of the base 3. The breaking line 10 starts from the position of the first cut, and thereafter proceeds along the ridgeline on the cut tape 7 side of the upper surface of the base 3. Therefore, the cutting line of the tape is not completely straight. As shown in FIG. 12, when the right side (the cutting tape 7 side) is scraped away from the center of the upper surface of the base 3, the tape is broken as shown in FIG. 11, and the cutting line can be made substantially straight.

  FIG. 14 is an example of the present invention in which the blade 1 and the finger protection unit 2 are provided at both ends of the upper surface of the base 3. In this case, the first cut can be made on any side of the drawn tape. Also, the position of the blade in the finger protection unit 2 is brought up. FIG. 15 shows a situation in which the tape is cut out in this case. In this case, the end of the cut-off tape 7 is lifted up and cut. It is easier to cut the position of the blade in the finger protection part in the tape drawing direction closer to the cutting tape 7 side than the center. The operation of pulling up the cutting tape and cutting it is easy because the upper space is wide, but in this case, there is nothing to serve as a guide for the subsequent break from the first cut, so the shape of the cutting line is not stable. Further, since the end portion on the tape side to be cut off is only partially adhered to the end portion of the front surface (winding tape side) ridge line on the upper surface of the base portion 3, it is easily detached from the tape cutter.

  FIG. 16 is an example of the present invention in which the blade and the finger protection part are extended to substantially the same width as the base part. Naturally, in order to apply the drawn tape to the blade, the tape must be inserted into a narrow and long gap, which is inconvenient, but this is not the case when the tape material is a material such as soft vinyl chloride with a large elongation. The tape cannot be cut cleanly unless it has such a dimensional structure and the entire width of the tape is cut with a blade. In FIG. 16, the cutting blade is positioned to face the upper surface of the base, but may be on the base side.

The simplest tape cutter and winding tape used in the past. Wide adhesive tapes and tape cutters that are often used for packing materials. A tape cutter of the type that is conventionally placed on a desk and a wound tape. The simplest tape cutter conventionally used in FIG. The enlarged view of the serrated cutting blade of the tape cutter conventionally used. The schematic diagram which shows a mode that a fracture | rupture progresses from the cut | interruption put into one place on the tape one side. 1 is an exemplary embodiment of the present invention. The figure which looked at the Example of FIG. 7 when it pulls out and cut | disconnects a tape from the side. The figure which looked at the Example of FIG. 7 from the front. The figure which looked at the state when the tape is cut in the embodiment of FIG. The figure which looked at the state of tape cutting when using the base shown in FIG. 12 from the upper surface except a finger protection part. The figure which shows the base form at the time of scraping off half of the upper surface of a base. A part of the finger protection part is removed so that the blade can be easily seen. The Example of this invention when a cutting blade is set not diagonally but diagonally. The embodiment of the present invention when the cutting blade and the finger protecting part are at both ends of the upper surface of the base, and the cutting blade is at a position facing the upper surface of the base. The figure which looked at the state when the tape is cut | disconnected in the Example of FIG. 14 from the side surface. The embodiment of the present invention when the cutting blade and the finger protection part are extended so as to cover the entire width of the tape.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cutting blade 2, 2A, 2B Finger protection part 3 Base part 4 The foot part which bends freely in order to attach loosely to the core of the winding tape 5 The winding tape 6 The tape 7 which remains after cutting 7 The tape 8 which is cut and cut Position 9 when the tape to be cut is in contact with the cutting blade Part 10 where the end of the tape remaining after cutting is adhered to the upper surface of the base 10 Cutting line

Claims (1)

A blade, and a finger protect section which fingers while holding the one position opening surrounds the blade so as not to touch the cutting edge, consists of a base portion, the finger protecting portion is secured to one or both ends of the base portion upper surface and Toritsui Te, tape cutter full width of the full width and hand protection portion of the blade when viewed from a direction to pull out the tape is equal to or shorter than the full width of the base upper surface.

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