JP2012071088A - Jumping power measuring instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jumping power measuring instrument to be used when measuring jumping power and safely and easily measuring particularly running jumping power, which has been difficult to measure with free movement by a conventional jumping power measuring instrument.SOLUTION: The measuring instrument is constituted by installing a base 1 and a required number of chains 2 in the ladder-like positions of the base, inserting a string in the front face of the chains while inserting a rubber plate string 4 in the back face of the chains, and firmly fixing the rubber plate string, without fixing the string so as to be freely movable.

Description

  The present invention is used when measuring a jump force, and particularly relates to an instrument that can easily measure a running jump force, which is difficult to measure with free movement using a conventional jump force measuring instrument.

The conventional measuring instrument is a sergeant jump meter, which is a vertical jump measuring instrument on the spot. Since it is fixed to the wall and there is no distance between the equipment and the wall, it is difficult to measure the running jump force at the highest level due to the danger of contact with the wall. The mobile type could not be measured by running with a vertical jump measuring instrument that measures with a string attached to the waist. In addition, the flying vertical jumper that calculates the jump height from the flight time was not a measure of the running jump force by the jump height measurement method on the mat.
For example, Japanese Patent Application Laid-Open No. 2001-333998 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2006-6469 (Patent Document 2) use a method of touching a bar with a touch panel in a jumping force training playground equipment. However, it could not be used as a substitute for the highest point determination device.
It is very important in terms of technology and strategy to know and improve the jumping power while moving, especially during volleyball players 'attacks and blocks, and basketball players' shots and rebounds. There was no suitable instrument that could move freely and measure the jump force.

  JP 2001-333998 A (claims, effects of the invention, FIG. 1)   Japanese Patent Laying-Open No. 2006-6469 (Claims, Effects of the Invention, FIG. 1)

This has the following drawbacks.
(A) Since the conventional fixed type jump force measuring device is made of metal and the touch surface is also angular, when measuring the jump force, there is a possibility that an arm or a finger may come into contact with an instrument to be injured.
(B) When measuring with a fixed jump force measuring instrument, when running with a running jump, the distance from the wall was small, and there was a risk of injury such as sprains.
(C) With the conventional touch type measurement method, if the touch force is weak, the measuring rod cannot be fully pushed in and the touched position cannot be confirmed.
(D) When returning the measuring rod to the original position, an auxiliary instrument is used, but it may not be easily restored.
(E) Installation work was required to use the conventional fixed measuring instrument.

Install the required number of bases (1) and chains (2) in the ladder-like position of the base, and insert and fix the string (3) on the front of the chain and the rubber plate (4) on the back, and the string can move freely Do not fix as much as possible.
The present invention is a jump force measuring instrument having the above-described configuration.

(B) Because of the round shape of the chain, there is no need to worry about accidents caused by contact when measuring jump force.
(B) Since it is a hanging type, there is no need to worry about accidents that touch the wall if the installation location is taken into consideration.
(C) If touched even a little, the chain moves in the horizontal direction, the rear part of the chain falls due to gravity, the front part stops with the rubber strap, and the diagonal state can be stopped. Therefore, the touched position can be easily confirmed and measured accurately.
(D) When returning the chain to its original position, pulling the string makes it easier to return the chain to its original position for convenience.
(E) Although installation work was required to use a conventional fixed instrument, the product of the present invention is lightweight and can be easily installed because it is suspended, and can be easily transported and stored.

It is a use example of this invention, and a general view. It is a use example of this invention, and a detailed perspective view. It is a front view of the present invention. It is a side view of the present invention. It is an exploded perspective view of the present invention.

  Hereinafter, the best mode for carrying out the present invention will be described.

1 is a use example of the jump force measuring instrument of the present invention, an overall view, FIG. 2 is a use example of FIG. 1, a detailed perspective view, FIG. 3 is a front view of the present invention, FIG. 4 is a side view, and FIG. It is a disassembled perspective view.

  This will be described with reference to FIGS. FIG. 1 is an overall view of a state in which a subject jumps and reaches a jump force measuring instrument. FIG. 2 is a view showing a state in which the subject touches the jump force measuring instrument. The chain is pushed to the back, and after the hand is released, the touched chain hangs diagonally due to gravity.

  FIG. 3 is a front view showing a state where the chains are evenly inserted into the stepped gaps of the base. On the front side of the chain, there is a string to make the chain flat before measurement, and on the back side, there is a wide rubber plate string on the inside of the chain to prevent the chain from falling and twisting to the side of the chain. Through.

  FIG. 4 is a side view. The position of the string for flattening before measurement and the position of the rubber plate string are shown. The chain length and base width should be set so that the center of gravity of the chain is in the center of the stepped frame of the base.

  FIG. 5 is an exploded perspective view. A scale is installed on the base in parallel with the chain. In addition, two holes for hanging the base are installed on the upper left and right. The chain color may be changed, and the length may be indicated directly on the chain. The width of the rubber plate string is made slightly narrower than the inner diameter of the chain so that when the chain is pushed, it moves smoothly and hangs down. Also note that if it is too narrow, the chain may twist sideways. The thickness of the chain is related to the height of the stepped frame, but it may be about half. The chain is preferably a long link chain rather than a short link chain.

  Consider the position of the string to make it flat before measurement so that the center of gravity of the chain is in the stepped frame. The type of the string is not resistant when the chain is pushed, is soft and strong enough to be resistant to friction and can be used many times.

  The jump force is calculated by subtracting the height when reaching out without jumping from the maximum height reached at the time of jump. The maximum reaching height at the time of jump is obtained by adding the length from the floor to the scale of the jump force measuring instrument to scale 0 and the length of the jump measuring instrument touched by the chain.

1 Base 2 Chain 3 Rubber plate string 4 String 5 Rubber string fixing pin 6 Hole for rubber string fixing pin 7 Scale 8 Hole for hanging

Claims (4)

Jump force measuring instrument (1). Installation method (2) when using the jump force measuring instrument (1). The shape (3) of the touch part chain of the jump force measuring instrument (1). Method (4) for making the flat state before the measurement of the jump force measuring instrument (1).

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