JP3120691U - Variable weight iron array - Google Patents

Abstract

The weights at both ends of an iron array are hermetically fixed in weight, and cannot sufficiently cope with changes in muscle strength. The present invention is intended to respond to the muscular strength that is strengthened while easily adjusting the weight of the iron array, with no awareness of the sense of resistance.
SOLUTION: The weights at both ends of the iron array are formed into a hollow cylindrical shape, filled with a donut-shaped filler that can be changed uniformly and easily, and the weight of the weight is finely adjusted and changed. Therefore, by hollowing out the weights at both ends of the iron array, it is convenient to fill the weights that are subdivided to correspond to the muscle strength that has become stronger or the muscles that have become weaker after rest, so that it does not move. The muscles that have become weaker after rest, the strength that has been strengthened by training, etc., can be handled freely.
[Selection] Figure 2

Description

Problems that the device tries to solve

The weights at both ends of the iron array were hermetically fixed in weight and could not cope with the changes in muscle strength. Sports are not limited to athletes, and boys and the elderly are always muscles that will increase if they enjoy and train regardless of their age. How to make the iron array respond to the strength of boys and the elderly who have become stronger, and to respond to the increased muscle strength by simply adjusting the weight of the iron array without any awareness of the sense of resistance naturally.

Means for solving the problem

今 ｒ＝３．２７ ｒ_１＝１．１ ｔ＝０．２３
とすると Ｖ＝６．８５
Ｖ×比重 で充填材一個の重量が算出される、充填材の素材をアルミ、鉄鉛と仮定すると
比重 Ｖ
アルミ ２．６２ ６．８５×２．６２＝１７．９５
鉄 ７．８６ ６．８５×７．８６＝５３．８４
鉛 １１．３ ６．８５×１１．３＝７７．４０ と算出され錘部の重量は０から鉛の充填材を両端部に各々二十枚を充填すると、
其の重量は ７７．４×２０×２＝１５４８×２＝３０９６ と為り、微調整の幅は大きく充分に初期の目的を達する。The outer circular radius of the doughnut-shaped filler that changes the weight of the doughnut-shaped filler by changing the weight of the weight by finely adjusting the weight of the doughnut-shaped filler by filling it with a cylindrical shape and hollowing the weights at both ends of the iron array.
The inner circle radius is r ₁
Find the volume of one donut-shaped filler with thickness t

Now r = 3.27 r ₁ = 1.1 t = 0.23
Then V = 6.85
Assuming that the filler material is aluminum and iron-lead, the weight of one filler is calculated as V x specific gravity.
Specific gravity V
Aluminum 2.62 6.85 × 2.62 = 17.95
Iron 7.86 6.85 × 7.86 = 53.84
Lead 11.3 6.85 × 11.3 = 77.40 The weight of the weight part is 0, and when filling each end with 20 lead fillers,
Its weight is 77.4 × 20 × 2 = 1548 × 2 = 3096, and the fine adjustment range is large enough to achieve the initial purpose.

Effect of device

When the iron array feels light, each time it is made lighter, it responds to the muscular strength that has become stronger while adjusting the weight of the iron array slightly.

  Side view of iron array   Exploded view of variable anatomical weight of iron array   Top view and side view of donut-shaped weight filler

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Weight part of hollowed iron array end 2 Adjustment weight packed in hollow part 3 Weight clasp 4 Outer lid of hollowed part 5 Outer lid clasp 6 Outer circle radius r of donut-shaped filler
7 Inner circle radius r ₁ of donut-shaped filler
8 Thickness of donut-shaped filler t

Claims (1)

An iron array that can easily and finely adjust the weight of the weight by filling the hollow cylindrical weights at both ends with a filler that can be changed uniformly and easily.

Images