JPH0418600Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention relates to the improvement of shinai for kendo.The raw material is natural bamboo, but it is made from a chemical product, and the handle has an oval cross section. It consists of a part 1 and a blade part 4, and is characterized in that these two parts are connected and integrated.

``Prior Art'' The raw material for conventional shinai for kendo is made of bamboo.As shown in FIG. The nearby part is thicker. Then, from above, the tip skin 17 is placed on the sword tip 25, and the handle skin 2 is placed on the other end.
7 is wrapped, and the four split bamboos 24 are bundled by pulling together 17 and 27 with the vine 14.
I try not to let them deviate from 7.

Also, this vine 14 corresponds to the peak of Shinken, and is also used as a sign. The flange 28 is inserted through the flange 28, which has a hole that matches the outer diameter of the handle skin 27, and a circular rubber flange stopper 29 is passed through the flange 28, and the flange 28 is brought into close contact with the flange 28.
8 deviations are prevented. In addition, it indicates the 18th year of the year, binds the split bamboo 24, and also serves as a mark for the hitting position. In other words, it is determined that the correct striking area is approximately from the middle part of the sword to the tip of the sword at 25. Further, 30 indicates a stopper called a chigiri, which has a function of preventing the four split bamboos 24 from slipping from each other. Again 1
Reference numeral 6 refers to a tip rubber, which is inserted between the tip of the tip 17 and the tip of the split bamboo 24, and has the function of preventing shocks such as thrusting techniques and damage to the tip of the tip.

("Kendo Textbook" published by the Japan Kendo Federation) "Problems that the invention attempts to solve" As explained above, traditional Shinai swords are made of bamboo, so during Kendo practice or competitions, etc. Mutual Shinai and Shinai, or Shinai and Mengane, etc.
Due to the collision, the bamboo swords were severely damaged, and as a result, there were accidents such as the split bamboos becoming hangnails and getting stuck in each other's eyes. It could enter the bronchial tubes every time you breathe, posing a health hazard. Also, while the cross-sectional shape of the handle of a serious sword is oval and easy to grip, the cross-sectional shape of the handle of a traditional Shinai sword is circular, so in reality, It is difficult to learn (training of the principles of the sword), and the length of the handle of traditional Shinai is standardized, so it is difficult to obtain a handle length that matches the length of the user's arm. That was difficult.
Also, when a traditional Shinai is damaged, when replacing the part, it is difficult to replace the part because if the handle skin that covers the handle of the split bamboo is even slightly loose, it may get twisted during use. The handle skin of the claw is forcibly soaked in water and the skin is stretched a little to cover it, so in order to replace the defective part of the split bamboo, remove the handle skin again and replace the split bamboo. It was also difficult because I had to force the handle to cover it.

Also, since traditional Shinai swords are made of four split bamboos forming a circular shape, it is difficult to notice when struck from the side. In other words, to be serious, I mean that you won't be able to tell even if you hit the ball on the flat side instead of on the blade.
Also, it was often unclear how hard the strike was made, and whether the line of the shinai was correct or not. The purpose of the present invention is to solve many of the problems mentioned above.

"Structure of the idea" Figures 1, 2, 3, 5, and 10
As shown in the figure, the gripping side of the handle 1 has an oval cross section, and on both sides there are three screw holes for fixing the tsuba 2, and beyond that there is a blade 4. There are several screw holes 5 for attaching. In the case of the embodiment shown in FIG. 1, there are four blades 4 of the same shape, but each has a hole 6 at the end for attachment to the handle 1. These four blades, which are screwed together, are made to be thick near the handle 1 and thinner at the tip, like a traditional Shinai. The tsuba 2 is inserted into this from the end surface of the handle 1 opposite to the side on which the blade is fixed.
Of course, the collar 2 has an oval through hole 7 that matches the cross section of the handle 1, and the collar 2 also has a boss 8 integrated therein, and the boss 8 has a side surface of the handle 1. Hole 9 is located at the position that matches the several screw holes 3 for fixing the collar.
It is open and can be fixed with a collar fixing screw 10. The reason why there are several screw holes 3 for fixing the tsuba on the handle is to change the position of the tsuba 2 to suit the user, and the position of the tsuba 2 can be changed by the number of screw holes 3. That's why. Again 1
1 is a spacer, which also has an oval hole 12 similar to the cross section of the handle 1, and connects the 2 parts of the tsuba to the blade part 4.
When it is fixed in a position away from the blade, it is inserted into the handle 1 between the flange 2 and the blade 4. Of course, since the outer shape is the same as the blade part 4, the blade part appears to be longer. Also tsuba part 2
There are two or three holes 13 in a part of the flange part, that is, in the vertical direction with respect to the oval hole 7, and these holes 13 in the flange part serve as holes for passing the temples 14 of a conventional Shinai. . Hereinafter, this hole will be referred to as the hanging hole. Then, the tip portion 25, that is, the tip of the blade portion 4 is cut. The rubber tip 16 and tip skin 17 used in conventional shinai are used for the shinai, and at about one-third of the total length from the tip, there is a hollow 18 with a vine 14, just like in a conventional shinai. use. With the structure described above, the embodiment shown in FIG. 1 is completed. Made of chemical products, of course.

``Effect of the invention'' Due to the above structure, the cross-sectional shape of the handle is elliptical, making it easy for the user to grip, and difficult to grip from the side like a traditional Shinai, which is similar in shape to the handle of a serious sword. Because it is familiar, you can make it correctly. Furthermore, while the raw material for conventional Shinai shinai is bamboo, the Shinshinai of the present invention is made from a chemical product, so it is less dangerous. Since the position of the tsuba can be changed, the user can perform kendo more correctly. Also, even if the blade part is damaged, it can be replaced immediately. In addition, with conventional bamboo swords, if the handle skin was loose, it would get twisted, but with the present invention, no handle skin is used, so this will never happen. In the embodiment shown in FIG.
It is an effect. Next, the embodiment shown in FIG. 8 will be described.

``Construction of the invention'' The handle 1 and the flange 2 are the same as in the embodiment shown in Fig. 1, but the blade part in the embodiment shown in Fig. 1 has the same shape as a conventional Shinai. However, in the case of the example shown in Figure 8, it consists of two blades of different shapes, and when the hilt and the upper and lower two blades are assembled, it becomes a serious sword. As shown in the figure, in order to have a sled, the upper part of the blade (4) and the lower part (4) of the blade are both formed into an upper sled when viewed from the side. Further, as shown in Fig. 9, the upper 4 C of the blade may be straight, or both the upper 4 C and the lower 4 C of the blade may be straight. However, in this case, when the two swords are attached to the handle 1, the blade is wider at the hand and narrower at the tip, like a serious sword. In addition, the cross section of the upper and lower blade portions of the embodiment shown in FIG. 8 is in the shape of an alpha U-shape, as shown in FIGS. 10, 12, and 13. It is shaped like a U-shape or a Y-shape with the middle rod shortened, with the unlined sides facing each other, with the upper 4a of the blade on the inside and the lower 4ro on the outside. However, the opposite is also possible... In this case, the side without a line is wider and the back side is narrower.Using the fact that this product is made of chemical products and has elasticity, you can use it during practice or the like to exchange blows with your opponent, and the lower 4 sides of the blade can be Even if the upper part of the blade is pressed down, it is tapered, so
It absorbs the shock of being hit, and due to its elasticity and restoring power, it will return to its original state once the force of being hit is gone.

Further, as shown in FIGS. 14 and 15, the upper 4C of the blade may have no cut portion, or the upper 4C of the blade may be pipe-shaped. However, it is also possible to have the upper part of the blade part and the lower part of the blade part reversed from the above sectional view. There are holes 6 on the top and bottom of the blade with the above cross section at positions that match the blade mounting screw holes 5 of the handle 1, as explained in the embodiment shown in FIG. 19 is screwed and fixed, and as in the embodiment shown in FIG.
6. Use tip bark 17, middle Yui 18, vine 14, etc.
The end of the temple 14 is passed through the hanging hole 13 of the collar and tied. This has already been explained. Also, grooves 20 or holes 20' of the same depth are provided at symmetrical positions on the side surface of the blade portion that covers the outside of the blade portion.
If the blade has been drilled several times and looks like Figure 13, then when the blade is lowered, if it is lowered correctly, there will be symmetrical grooves 20 or holes 2.
The 0' indentation makes the sound of cutting the air, and if you don't swing it down correctly, there will be no sound, so if you practice swinging it so that it makes a sound, you'll naturally be able to swing it correctly with the blade.

``Effect of the idea'' The width seen from above is not as wide as a traditional shinai, but rather a shape similar to that of a serious sword, allowing for more authentic kendo. Also, depending on whether or not a sound is made when swinging, you will be able to learn the correct blade line. Next, the embodiment shown in FIG. 16 will be described.

``Structure of the device'' The appearance is the same as the embodiment shown in Figs. 8 and 9, but in the case of the embodiment shown in Figs. I don't know whether the blade was in the right position at that moment or right after that, whether the grip was good in the hand, and whether the force with which I struck it was good. Therefore, G-G of the example in Fig. 16
As shown in the cross-sectional view, Figure 17, between the upper blade part 4a and the lower blade part 4b, there is something like a rubber ball with a flute 2.
1 to a specific position. The fixing method may be gluing or screwing, but it may be fixed at a specific position on the blade or inside the lower part of the blade. This rubber ball-like thing 21 with a whistle is always inflated and filled with air, and when it is depressed, the air inside comes out through the whistle, and when the air passes through the whistle, It's starting to make noise. If this rubber ball-like thing is applied with a certain amount of force to shrink, a spring 22 strong enough to contract is fixed between the upper blade part 4a and the blade part 4ro or inside the rubber ball-like thing. However, during practice or competitions, when you hit with more than a certain amount of force with the lower part 4 of the blade in the correct position, it may get caught between the upper 4 of the blade and the lower 4 of the blade. A rubber ball-like object 21 is indented so that the air inside passes through the whistle 23 and makes a sound (see Figure 18). This rubber ball-like object 21 is made of glue or a screw, and the flute 2 is made only when the blade is hit in the correct position with a certain amount of force or more.
It is attached to the inside of the blade at the position where the number 3 sounds.
This rubber ball-shaped thing 21 may have a structure similar to that found in toys, etc., and can be thought of as simply being attached to a specific position on the blade. However, the number to be installed is not specified separately. I think the above explanation has clarified this idea.

``Effect of the idea'' Immediately after striking the opponent, you can tell whether the blade was aligned correctly or not, and you can also tell whether the strike was strong or not. Judgments during matches, etc. can be clearly understood by anyone, and unlike in the past, sometimes there were bad aftertastes, but these kinds of things will no longer happen.

As you can see from the above explanations, this invention eliminates all the drawbacks of conventional Shinai, and the teachers of the "All Japan Kendo Federation" have told Kendo practitioners many times. This is a wonderful idea that solves all of the problems that have been pointed out and given guidance all at once.

[Brief explanation of the drawing]

FIG. 1 is a side view of an embodiment of the present invention. Figure 2 is a plan view. FIG. 3 is an exploded perspective view of the main parts of the present invention. FIG. 4 is a sectional view taken along line A-A in FIG. 3. FIG. 5 is a perspective view of another configuration of the main parts of the present invention. Figure 6 shows the fifth
BB sectional view of the figure. FIG. 7 is a perspective view showing the constituent members of the present invention. FIG. 8 is a side view showing another embodiment of the present invention. FIG. 9 is a side view showing another embodiment of the present invention. The marks in Figures 8 and 9 indicate the direction of the blade. FIG. 10 is an exploded perspective view of the main parts of the embodiment shown in FIG. FIG. 11 is a perspective view showing the structural members of the embodiment shown in FIGS. 8 and 9. Figure 12 is Figure 8C-
C sectional view. FIG. 13 is a sectional view taken along the line DD in FIG. 8. FIG. 14 is a sectional view taken along line E-E in FIG. FIG. 15 is a sectional view taken along line FF in FIG. 9. FIG. 16 is a side view of another embodiment of the present invention. FIG. 17 is a sectional view taken along line GG in FIG. 16. FIG. 18 is a diagram showing a variation of FIG. 16. The mark indicates the direction of the force. Figure 19 is a side view of a conventional bamboo sword. FIG. 20 is a diagram of the components shown in FIG. 19. 21st
FIG. 20 and a diagram of the components shown in FIG. 19. Figure 22 shows the 21st
HH sectional view of the figure. Figure 23 shows J-J in Figure 21.
Cross-sectional view. FIG. 24 is a view taken along arrow K in FIG. 21. The above diagrams from FIG. 19 to FIG. 24 are conventional designs. Description of each part and each part, 1...Handle or handle, 2
...Brim or brim part, 3...Screw hole for fixing brim, 4...
Blade part, 4 I... Upper blade part, 4 B... Lower blade part,
4 C... Upper blade part, 5... Blade part mounting screw hole, 6... Hole, 7 and 12... Oval through hole, 8
...Boss of tsuba, 9...hole, 10, 19...screw, 11, 11'...spacer, 13...hanging hole, 14...vine, 16...rubber tip, 17...
... Tip of the skin, 18... Middle Yui, 20... Groove, 20'
...Hole, 21...Gummari-sama's with flute, 22
...Spring, 23...Flute, 24...Split bamboo, 25...
...Sword tip, 26...Pommel head, 27...Handle, 2
7'...Handle, 28...Tsuba, 29...Tsuba stop, 3
0... Chigiri.

Claims (1)

[Scope of utility model registration request] This bamboo sword is made of chemical products, and is made by connecting and integrating two parts, the handle 1 and the blade 4, which have an oval or oval cross section, and the handle 1 has a screw hole 3 for fixing the tsuba 2.
are placed in parallel in multiple places, and the holes 9 of the tsuba 2 are made to correspond to each other.
This Shinshinai for Kendo is capable of fixing a guard 2 to a handle 1 by screwing screws 10 into the fixing screw holes 3.