JPH09145300A - Helical arrow - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an air resistance to cause an arrow to fly a far distance and to enable a rate of getting target to be increased by a method wherein a rear end part of an arrow shaft of an aluminum alloy pipe is formed to a helical shape. SOLUTION: A pipe made of an aluminum alloy, glass fiber, carbon fiber and synthetic resin or the like is formed into a circular shape so as to make an arrow shaft 1. An extremity end of the arrow shaft 1 is provided with a conical, line-stream shape or bullet-shaped arrow head 3 made of steel, or stainless steel. A rear end of the arrow shaft 1 is provided with an arrow slit 4 made of plastic material having a slit therein. Then, a groove having a helical shape of concave type is formed inside a diameter of the arrow shaft 1 just before the arrow slit 4 of the arrow shaft 1. With such an arrangement as above, it is possible to reduce an air resistance while shooting the helical arrow by a bow, cause the arrow to fly a far distance, rotate it in a helical shape, make a stable flying of the arrow and increase a rate of getting a target.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spiral arrow whose rear end portion has a spiral shape.

[0002]

2. Description of the Related Art Conventionally, there is an arrow with wings at the rear end of the arrow.

[0003]

This has the following disadvantages. When you shoot an arrow, the bow hits the wings and the hit rate is poor. Moreover, the air resistance of the wings causes the flying distance to be short. The present invention has been made to eliminate the above drawbacks.

[0004]

[Means for Solving the Problem] The rear end of the arrow shaft (1) is
A spiral arrow with a spiral shape (2). The present invention is a spiral arrow having the above configuration.

[0005]

[Operation] This spiral arrow is attached to a bow and a targeting arrow is shot. It is fired without rotating. Receiving air resistance,
An air flow vortex is created in the spiral-shaped part, and a force acts in the direction to rotate the arrow, causing the arrow to fly while the arrow rotates, thereby accurately hitting the target. Targeting further away is greater than with traditional winged arrows.

[0006]

Embodiments of the present invention will be described below. The arrow shaft (1) is an aluminum alloy pipe, but glass fiber, carbon fiber, synthetic resin, and composite materials with these are also conceivable. The arrow shaft (1) has a cross-sectional shape other than the spiral shape (2). Becomes circular. Spiral shape (2)
The shape of the cross section of Fig. 2 will be explained based on Fig. 2. (a) creates a concave groove inside the arrow axis diameter, (b) creates a convex bulge outside the arrow axis diameter, and (c) on the arrow axis. I will make a combination of a and b, d will make the corners of a, b, and c round,
A spiral shape (2) is attached to the rear end of the arrow shaft (1) in a clockwise or counterclockwise direction, and the number is about 3 to 10. The arrowhead (3) is made of steel or stainless steel, and has a cone, streamline, or shell shape. The arrow head (4) is made of plastic and has a notch at the rear. The present invention has the above-described structure, and when this is used, the user holds the bow in one hand and the spiral arrow in the other hand and shoots with the bow.

[0007]

EFFECTS OF THE INVENTION When a spiral arrow is shot with a bow, it has a low air resistance and flies far.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

[Explanation of symbols]

 1 arrow axis 2 spiral shape 3 arrowhead 4 arrow

Claims (1)

[Claims] 1. A spiral arrow, wherein a rear end portion of the arrow shaft (1) has a spiral shape (2).