JP3168421U - Bamboo blade practice aid - Google Patents

Abstract

[PROBLEMS] To attach and detach a hand-held bamboo sword that is normally used, and when attached, a loud sound is produced when swinging correctly, and no sound is produced or sound is small when the blade is slanted in the direction of swinging down. By doing this, we will provide a bamboo sword practice aid that allows you to practice while confirming whether you are oscillating in the correct direction. SOLUTION: A tube part 2 that can cover the tip of the bamboo sword, a string 3 for tightening the periphery of the base of the tube part 2, and a sound that is fixed to the tip of the tube part 2 and is generated by the air current generated by the swing of the bamboo sword. It consists of whistle 4 which is a whistle. A whistle holding portion 2 a having a center line in a direction orthogonal to the center line of the tube portion 2 for inserting the blower opening 4 a of the whistle 4 is provided at the distal end portion of the tube portion 2. The periphery of the base portion 2b of the tube portion 2 is folded and sewn, and the leather material is reinforced. The base 2b is provided with a string passing hole 2c through which the string 3 is passed. [Selection] Figure 1

Description

  The present invention relates to a bamboo sword practice practice assisting tool that makes it possible to know from sound whether or not the practice of making a bamboo sword used in kendo practice is the correct type.

  Bamboo swords are used as substitutes for Japanese swords and wooden swords in Kendo practice and games. Bamboo swords are made by combining four bamboo materials divided vertically into 8 pieces and covering the base part with a leather tube to form a handle. The string is stretched to make a peak, and the other side is like a blade.

  When practicing, hold it with both hands so that the opposite side of the string is down, and swing it straight down (front swing) or swing left and right diagonally (tilt swing). The correct posture and movement is to ensure that the opposite side (blade line) faces correctly. That is, in the case of seriousness, the object cannot be cut well if the cutting edge does not face in the same direction as the swaying direction.

  The upper person gives guidance while observing the practice of swinging in the correct mold and blade orientation, but when practicing alone, the correct type cannot be confirmed and a bad habit is attached. There is a risk that.

  Patent Document 1 proposes a wooden sword that produces a high sound when it is shaken with the correct pattern when practicing with a wooden sword. This is a few holes in the vicinity of the cutting edge of the wooden sword, with a hollow part. When swinging down by swinging practice, a loud sound is produced when the blade is correct, and the blade is swung down. On the other hand, when it is slanted, no sound is produced or the sound is low.

Utility Model Registration No. 3119297

The wooden sword proposed in the above-mentioned Patent Document 1 is a wooden sword dedicated to practice swinging in order to make a hole in the wooden sword itself.
Generally, bamboo swords are used for practice and games in kendo, so no sound will be produced even if a hole is made in the bamboo sword bamboo. Can not.

  In addition, there are a number of devices designed to produce sound for the practice of swinging golf clubs and baseball bats. is there. It cannot be applied to golf clubs and bats that are normally used.

  Therefore, the present invention can be attached to and detached from a hand-held bamboo sword that is normally used, and when it is attached, it makes a loud sound when properly swinging. It is an object of the present invention to provide a bamboo sword practice aid that allows you to practice while checking yourself whether or not you are oscillating in the correct direction.

  In order to solve the above-mentioned problem, a bamboo sword swing practice assisting tool of the present invention includes a cylindrical portion made of a flexible material capable of covering the tip of the bamboo sword, a string for tightening the periphery of the base portion of the cylindrical portion, It consists of a whistle that is fixed to the tip of the tube and emits sound by the air current generated by the swing of the bamboo sword.

  In the present invention, the cylinder part of the bamboo sword swing practice aid is attached to the tip part of the bamboo sword to be used, and the base part of the cylinder part is fastened with a string and firmly fixed to the tip part of the bamboo sword. A whistle is fixed to the tip of the tube portion. If the bamboo sword with this bamboo sword swing practice aid is shaken correctly, a whistle will be formed. A whistle is a musical instrument or tool that emits sound by an air current. The higher the speed of the air current, the louder the sound. If the wrist that holds the bamboo sword is properly swinged, the speed of the tip of the bamboo sword when it is swung down increases, so the sound of the whistle increases. A beginner can practice swinging with a target so as to approach the loudness of a stepper or instructor. When improving or at the time of a game, it can be used as a normal bamboo sword by unfastening the string and removing the tube from the tip of the bamboo sword.

  The flexible material and the string material, which are the material of the cylindrical portion, can be the same leather (cowhide, synthetic leather, etc.) as the material of the bamboo sword tip or the middle piece, and are compatible with the tip skin.

  As the whistle, a whistle can be used, and by fixing the whistle to the tube portion so as to face the blade blade direction of the bamboo sword, a ready-made whistle can be used and the blade blade can be swung. When it is slanted with respect to the direction of lowering, no sound is produced or the sound is small, so that it can be determined whether or not it is swinging in the correct direction.

  The bamboo sword swing practice assisting tool of the present invention is fixed to the tube portion made of a flexible material capable of covering the tip of the bamboo sword, a string for tightening the periphery of the base of the tube portion, and the tip of the tube portion. Because it consists of a whistle that emits sound due to the airflow generated by the swing of the bamboo sword, it can be attached to and detached from the hand-held bamboo sword that is normally used. On the other hand, when it is slanted, it is possible to practice while confirming whether or not it is swinging in the correct direction by making no sound or low sound.

It is a perspective view of a bamboo sword swing practice aid according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS The leather of the bamboo sword practice practice tool which concerns on embodiment of this invention is shown, (a) is an expanded view, (b) is a top view in the middle of an assembly, (c) is a perspective view in the middle of an assembly, (d ) Is a sectional view of the assembled state. It is a perspective view which shows the state which attached the bamboo sword practice practice tool which concerns on embodiment of this invention to the bamboo sword. It is an expansion perspective view of the state which attached the bamboo sword swing practice aid to the bamboo sword according to an embodiment of the present invention.

Embodiments of the present invention will be specifically described below with reference to the drawings.
As shown in FIG. 1, a bamboo sword swing practice assisting tool 1 according to an embodiment of the present invention is made of a flexible material that can cover the tip of the bamboo sword, in this example, animal leather such as cowhide or synthetic leather. A cylindrical portion 2, a string 3 made of leather or synthetic leather for tightening the periphery of the base portion of the cylindrical portion 2, and a whistle that is fixed to the tip of the cylindrical portion 2 and emits sound by an air current generated by swinging a bamboo sword 4 and so on. A whistle holding portion 2 a having a center line in a direction perpendicular to the center line of the tube portion 2 for inserting the blower opening 4 a of the whistle 4 is provided at the distal end portion of the tube portion 2. The periphery of the base portion 2b of the tube portion 2 is folded and sewn, and the leather material is reinforced. The base 2b is provided with a string passing hole 2c through which the string 3 is passed. In the example of FIG. 1, the whistle 4 is mounted on the whistle holding portion 2 a with the singing mouth (opening) facing forward, but may be mounted with the singing mouth facing backward.

  The cylinder part 2 can be formed by three-dimensionally assembling the cylinder part forming leather 5 shown in the development view of FIG. As shown in the figure, the cylinder forming leather 5 has a base end portion that is bent back twice to form a base portion 2b, and a string passing hole 2c and a sewing string passing hole 2e are opened. Four notches are provided at the tip, and a central piece 5a, side pieces 5b and 5c, and upper pieces 5d and 5e are formed.

  Next, as shown in FIG. 2 (b), the tubular portion forming leather 5 is rounded into a cylindrical shape so that the left and right side portions are attached, and the end portions of the upper pieces 5d and 5e are combined and sewn with a thread, and a stitched portion 5f is obtained. Form. FIG. 2 (c) shows this in three dimensions. From this state, the central piece 5a is raised upward, and then the stitched portion 5f is bent downward so as to cover the front of the central piece 5a. Next, when the front portions of the side pieces 5b and 5c are overlapped and stitched, the cylindrical portion 2 shown in the sectional view of FIG. 2D and the perspective view of FIG. 1 is completed.

  Therefore, the space surrounded by the stitched portion 5f, the front of the overlapped side pieces 5b and 5c, and the side pieces 5b and 5c is the whistle holding portion 2a.

  In addition, the structural example of this cylinder part 2 shows an example, and can also shape | mold with a type | mold with synthetic leather etc., and can also form by another method.

  FIG. 3 shows a state in which the above-described bamboo sword swing practice aid 1 is attached to the tip of the bamboo sword 10, and FIG. 4 is an enlarged view thereof. In the figure, a bamboo sword 10 has a tip 11 having a tip 11, a middle 12 in the middle, a handle 13 covered with a leather tube at the base, and a ridge 14. A single string 15 is stretched from the tip of the sword to the handle 13. The bamboo sword swing practice assisting tool 1 of the present invention is attached by covering the tip leather 11 so that the tube portion 2 covers the string 3 and firmly tying the string 3.

  At this time, it is preferable to tighten the string 3 through the string 15 in order to make it difficult to remove the bamboo sword swing practice aid 1. Moreover, it attaches so that the direction of the blower opening 4a of the whistle 4 may face the opposite direction of the bamboo sword with the string 15 stretched, that is, the blade line direction.

  In this way, the swinging motion is performed with the bamboo sword 10 attached with the bamboo sword swinging practice assisting tool 1 of the present invention. In the front swing, the whistle 4 emits a sound by receiving the air current by swinging it down so that the blade is straight in the vertical direction and the wrist is correctly turned back. The faster the sword tip of the bamboo sword 10, the louder the sound. If the blade is not straight, the sound will be low. Practice the aim by remembering the size of the instructor's correct gesture.

  In the case of slanted swinging, the sound emitted from the whistle 4 is maximized by swinging down so that the blade is directed in an oblique direction. If the blade is not directed in the correct direction, the sound is reduced or not emitted. .

  When the practice of swinging is finished or a game is played, the bamboo sword 10 can be used as it is by unfastening the string 3 and removing the bamboo sword swing practice assisting tool 1 from the tip of the bamboo sword 10.

  In the above-described embodiment, an example using the whistle 4 as a whistle has been described. However, any other type of whistle that emits sound by the flow of air can be used.

  The present invention can be attached to and detached from a hand-held bamboo sword that is normally used, and when it is attached, it makes a loud sound when properly swinging, and when the blade is slanted with respect to the direction of swinging down, there is no sound or sound is heard. By being small, it can be suitably used in the field of sporting goods as a bamboo sword practice practice tool that can be practiced while checking by yourself whether or not the practice is in the right direction.

DESCRIPTION OF SYMBOLS 1 Bamboo blade swing practice aid 2 Tube part 2a Whistle holding part 2b Base 2c String through hole 2d Sewing string 2e Sewing string through hole 3 String 4 Whistle
4a Blowout 5 Leather for forming the cylinder part 5a Center piece 5b, 5c Side piece 5d, 5e Upper piece 5f Sewing part 10 Bamboo sword 11 Tip leather 12 Middle 13 pattern 14 １５ 15 String

Claims (4)

  A tube made of a flexible material that can cover the tip of the bamboo sword, a string for tightening the periphery of the base of the tube, and a sound generated by the air flow generated by the swing of the bamboo sword, fixed to the tip of the tube Bamboo sword swing practice aid consisting of a whistle that emits.   2. The bamboo sword swing practice aid according to claim 1, wherein the flexible material constituting the tube portion is leather.   The bamboo sword swing practice aid according to claim 1 or 2, wherein the material of the string is leather.   4. The bamboo sword swing practice aid according to claim 1, wherein the whistle is a whistle, and the air outlet of the whistle is fixed to the cylindrical portion toward the blade line of the bamboo sword.

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