JPS635672Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a thread cutting tool that can easily cut thread or fishing line when sewing, making fishing equipment, etc.

(Prior Art) Conventional thread cutting tools include those described in Japanese Utility Model Application Publications No. 123196/1982 and No. 52387/1987.

The former has a beak-shaped blade with a narrow cutting edge and a cutting edge inside the ring, and the latter has a cutter on the outside of the ring.

(Problem to be solved by the invention) Conventionally, as described above, there was no guide for the cutting blades on both sides, and after years of use, a gap formed between the cutting blades and the abutting part of the cutting blades. This has become a problem as it becomes difficult to cut.

In view of these drawbacks, the present invention aims to eliminate the formation of gaps in the cutting edge even after long-term use, maintain cutting force, and ensure reliable cutting.

(Means for Solving the Problems) The present invention has thread cutters arranged in parallel to each other at opposite ends of an elastically deformable open-loop grip, and the tip of one thread cutter. At the same time, a planar blade abutment surface is formed on the inner surface of the tip of the thread trimmer, and a guide protrusion is formed on this blade abutment surface toward the other thread trimmer. A blade is installed on the inner surface of the tip of the other thread trimmer so as to be perpendicular to the blade contact surface, and guided to a position opposite to the guide protrusion of the other thread trimmer. A guide groove is provided in the length direction of the thread cutter with a width such that the protrusion can be inserted without a gap.

(effect of invention) The operation of the present invention will be explained.

When cutting thread or fishing line using the thread cutter according to the present invention, place the grip in the palm of your hand, place your thumb and index finger on the proximal end of each thread cutter, and then With the thread to be cut positioned between each tip of the blade and the contact surface, apply force to each fingertip to bring each thread trimmer closer, so that the tip of the blade touches the tip of the blade contact surface. The line or fishing line is cut only by the cutting action of the blade.

After cutting the line or fishing line, when the force applied to each fingertip is released, the thread cutting bodies are separated from each other due to the elastic restoring force of the grip body.

(Example) Embodiments of the present invention will be described based on the drawings.

As shown in FIGS. 1 to 4, the thread cutting tool according to the present invention has the following configuration.

A thread cutter body 2a is attached to opposite ends of the open-loop grip body 1 which is molded of resin and is elastically deformable.
2b are arranged in a row substantially parallel to each other.

One of the thread cutting bodies 2a has a thinner wall between the center and the distal end than the proximal end, and a non-slip member 3a is provided on the outer surface of the proximal end. The tip of the thread trimmer 2a is formed sharply, and a planar blade abutting surface 4 is formed on the inner surface of the thread trimmer 2a, and a guide protrusion 5 is attached to the blade abutting surface 4 of the other thread trimmer. It protrudes toward the 2b side.

In addition, only the tip of the other thread cutting body 2b is thinner than the other portions, and the inner surface of this thin tip is perpendicular to the blade contact surface 4. A blade 6 is attached to the. The position of the thread cutter 2b facing the guide protrusion 5 protrudes largely toward one of the thread cutter bodies 2a, and there is a guide groove 8 having a width such that the guide protrusion 5 is inserted into the protrusion 7 without a gap.
are provided in the length direction of the thread cutting body 2b. Since the guide protrusion 5 of this guide groove 8 is inserted, when the thread trimmers 2a and 2b are brought close together, the guide protrusion 5 enters the inner part of the guide groove 8, and the thread trimmers 2a and 2b are always at approximately the same position. They approach and separate along a straight line, and the contact position of the blade 6 with respect to the blade contact surface 4 is accurately determined. A non-slip layer 3b is also provided on the outer surface of the proximal end of the thread cutter 2b.

When the thread cutter is not in use, the blade portion of the blade body 6 and the blade contact surface 4 are approximately parallel to each other.

When cutting thread or fishing line using the thread cutter according to the present invention, place the grip body 1 in the palm, place the fingertips of the thumb and index finger on the respective non-slips 3a and 3b, and then press the blade body 6 and the blade. When the thread to be cut is placed between the tips of the body contacting surface 4 and the thread cutting bodies 2a and 2b are brought close to each other by applying force to each fingertip, the tips of the blades 6 are cut. The thread or fishing line is cut by only the cutting action of the blade 6 when it comes into contact with the tip of the blade contact surface 4 . After cutting the line or fishing line, when the force applied to each fingertip is released, the elastic restoring force of the grip body 1 causes the thread cutting bodies 2a, 2b to separate from each other.

Further, in the embodiment described above, the guide protrusion 5 and the guide groove 8 constitute the guide means A for always causing the opposing thread cutters 2a and 2b to approach and separate from each other along substantially the same straight line. As a guide means A′,
As shown in FIG. 5, a guide rod 9, which is slightly curved in accordance with the turning radius, is fixed at the center of the inner surface of one thread trimmer 2a toward the other thread trimmer 2b. A guide groove 10 having a shape corresponding to the rod 9 is provided in the center of the inner surface of the other thread cutting body 2b.
It is also possible to provide a structure in which a guide rod 9 is inserted into the guide groove 10.

(Effect of the invention) According to the thread cutting tool according to the invention, a guide protrusion is provided protrudingly on one thread cutting body, and a guide groove of a width that allows the guide protrusion to be inserted without a gap into the other thread cutting body. Because of this, when brought close to each thread trimmer, the guide protrusion enters the back of the guide groove, and each thread trimmer is always close to each other and separated along almost the same straight line, and the blade against the blade contact surface The abutting position of the blade is accurately determined, and even after long-term use, there will be no gap in the cutting edge, the cutting force can be maintained, and cutting can be performed reliably only by the cutting action of the blade. It is extremely convenient to use as a thread cutter when sewing or making fishing tackle.

[Brief explanation of the drawing]

Figure 1A is a front view of a thread trimmer according to an embodiment of the present invention, Figure 2 is a plan view of the same, and Figure 2 is an X in Figure 1A.
- An enlarged X-ray sectional view, Fig. 3 is an enlarged sectional view along the Y-Y line of Fig. 1A, Fig. 4 is an enlarged view of the blade contact surface of Fig. 1A, seen from below, and Fig. 5 is FIG. 7 is a partially cutaway front view of a thread cutting tool according to another embodiment of the present invention. Explanation of symbols of main parts, 1...grip body, 2a,
2b... Thread cutting body, 4... Blade contact surface, 5... Guide protrusion, 6... Blade, 8... Guide groove.

Claims (1)

[Claims for Utility Model Registration] (1) Thread cutters 2a and 2b are connected in parallel to each other at each opposing end of an elastically deformable open loop grip body 1, and one thread cutter body 2a A flat blade abutting surface 4 is formed on the inner surface of the tip of the thread cutting body 2a, and a guide protrusion 5 is attached to the other side of the blade abutting surface 4. A blade 6 is installed on the inner surface of the tip of the other thread cutter 2b so as to protrude toward the thread cutter 2b, and is perpendicular to the blade contact surface 4. The thread cutting tool is provided with a guide groove 8 in the length direction of the thread cutting body 2b at a position opposite to the guide part 5 of the thread cutting body 2b and having a width such that the guide protrusion 5 is inserted without a gap. (2) The thread cutting tool according to claim 1, which is a registered utility model, characterized in that the guide protrusion 5 is a rod 9, and the guide groove 8 is a guide groove 10 corresponding to the rod 9.