JP3214280U - Arch arch measuring tool - Google Patents

Abstract

An arch measuring tool that can easily and quickly measure the height of an arch is provided. A string 12 extending in the toe direction is attached to a heel center grounding portion P of a footrest plate 11 having a chromic material. Immediately after acquiring the foot shape due to discoloration of the chromic material in the foot contact portion, the inner vertical arch height can be estimated easily and in a short time by extending the string from the center of the buttock to the edge of the arch and further to the finger. It is preferable that the magnet 13a is attached to the tip of the string, and the iron plate 13b is attached to the toe end of the footrest plate. [Selection] Figure 1

Description

  The present invention relates to an arch measuring tool that can easily and quickly measure an arch height of an arch.

  The human foot has a characteristic arch structure. The arch structure plays the role of an important spring that absorbs the impact from the ground and distributes the load when standing or walking. The foot arch is composed of an inner longitudinal arch, an outer longitudinal arch, and a lateral arch. The inner longitudinal arch is also called an arch arch, and is regarded as clinically important from the viewpoint of shock absorbing function.

  The foot arch is evaluated using a footprint. In the evaluation based on the footprint, the footprint is taken on the bottom surface of the ground and the size is measured. It is known that there is a correlation between the slope of the straight line connecting the center of the buttocks of the contacted foot and the edge of the arch and the finger and the inner vertical arch height ratio (boat-like bone height / foot length). A classification method has been proposed in which the inner vertical arch height ratio is classified based on the degree of inclination of a straight line connecting the calculated center of the buttocks with the edge of the arch and the finger (for example, see Non-Patent Document 1). According to this classification method, since the inner vertical arch height can be easily estimated, the footprint is widely used mainly in the scene of determining the insole (shoe insole).

As a method of examining the method of taking the contact footprint, the inclination of the straight line connecting the center of the buttocks and the arch and the finger, after acquiring the footprint using a material having ink or chromism function, measure or ruler ( A method of applying a scale) is common.
However, there has been a problem that the conventional method of applying a measure or a ruler to the foot shape lacks the speed of measurement. In addition, in the method of applying a measure or ruler (scale), the foot shape disappears in a short time, such as chromism, and the foot shape is often acquired one by one because it is measured sequentially from left to right. In actuality, it is desirable to acquire and measure footprints at the same time on the left and right.

"Encyclopedia of Feet" edited by Nobutoshi Yamazaki Asakura Shoten

  The present invention has been made in view of the above-described conventional problems and actual situations, and an object of the present invention is to provide an arch measuring tool that can easily and accurately measure the arch height of the arch.

  As a result of intensive studies to solve the above problems, the inventor has attached a string extending in the toe direction to the heel center ground contact portion of the footrest plate having the chromic material for obtaining the ground contact foot shape. They found that very good results were obtained and completed the present invention.

  That is, the present invention solves the above-mentioned problems by an arch arch measuring tool characterized in that a string extending in the toe direction is attached to a heel center ground contact portion of a footrest plate having a chromic material. is there.

According to the present invention, since the string extending in the toe direction is attached to the heel center ground contact portion of the footrest plate having the chromic material for obtaining the ground contact foot shape, the foot shape due to discoloration of the chromic material of the foot ground contact portion Immediately after acquisition, the string can be extended from the center of the buttocks to the edge of the arch and further to the finger. Thereby, the inner vertical arch height can be estimated easily and in a short time.
In addition, even if the right and left feet are acquired at the same time, the straight line connecting the center of the left and right heels, the edge of the arch, and the fingers is examined by extending the string attached to each buttock center grounding portion. Therefore, it is possible to accurately estimate the inner vertical arch height of both feet.

The top view of the arch measuring tool of this invention arch.

  Embodiments of the present invention will be described below with reference to the drawings.

  In FIG. 1 showing an embodiment of an arch measuring tool of the arch of the present invention, 10 is an arch measuring tool of an arch, 11 is a footrest plate having a chromic material, and 12 is a heel center grounding portion P of the footrest plate 11. A string extending in the direction of the toe attached. The string 12 may be rubbery.

  The chromic material that the footrest plate 11 has is a material that has a function of reversibly changing optical properties such as color and fluorescence by external stimuli such as heat and pressure, and in particular, thermochromic materials and piezochromic materials are used. It is mentioned as a suitable thing. As a footrest board which has chromic material, there exists a size selection tool (Muller Japan Co., Ltd. product) etc. of a soft sole, for example. A foot shape can be acquired by the heat and pressure of the footrest plate 11 having a chromic material and grounding the bottom surface of the bare foot by aligning the center of the buttocks with the buttocks center grounding portion P. The foot form disappears in a short time, but the string 12 can be extended to the edge of the arch and further to the finger immediately after obtaining the foot form, so it is easy to examine the inclination of the straight line connecting the center of the buttock and the edge of the arch and the finger. It is.

  A magnet 13 a is attached to the tip of the string 12, and an iron plate 13 b is attached to the toe-direction end of the footrest plate 11. After the string 12 is extended, the magnet 13a is magnetically affixed on the iron plate 13b at the position of the straight line connecting the center of the heel of the footrest plate 11 and the edge of the arch and the finger. Positional misreading and misalignment can be prevented, which is advantageous for accurate measurement.

  A heel position display section 14 that indicates the contact position of the heel is formed on the heel center grounding section P of the footrest plate 11. The heel position display unit 14 may be a line display or a point display, but a plate shape or a block shape having a height of about 1 to 5 cm is located at the buttock center grounding portion P. This is particularly advantageous because it is easy to match without deviation. When the plate-shaped or block-shaped heel position display unit 14 is formed, a recess is provided in a part of the heel position display unit 14 and the string 12 is attached to the recess. It is desirable.

  In addition, a foot frame 15 that serves as a guide when the foot is grounded is displayed on the footrest plate 11.

  As shown in FIG. 1, it is desirable that the footrest plate 11 having the chromic material of the arch measuring tool of the present invention arch has a string 12 attached to both feet. Rather than sequentially acquiring the left and right footprints, you can acquire both inner feet at the same time, and accurately determine the inner vertical arch height by examining the inclination of the straight line connecting the center of the left and right hips, the edge of the arch and the finger. .

10: Arch arch measuring tool 11: Foot rest plate having chromic material 12: String 13a: Magnet 13b: Iron plate 14: Saddle position display portion 15: Foot shape frame line P: Saddle center ground contact portion

Claims (6)

  An arch measuring instrument for an arch, wherein a string extending in a toe direction is attached to a buttock center grounding portion of a footrest plate having a chromic material.   2. The arch arch measuring tool according to claim 1, wherein the string is attached to both feet.   The arch arch measuring tool according to claim 1 or 2, wherein the chromic material is a thermochromic material and a piezochromic material.   The arch measuring tool for an arch according to any one of claims 1 to 3, wherein a plate-like or block-like heel position display portion is formed on the footrest plate having the chromic material.   The arch of the arch according to any one of claims 1 to 4, wherein a magnet is attached to a tip portion of the string, and an iron plate is attached to an end portion of a footrest plate in a toe direction. Measuring tool.   The arch measuring instrument for an arch according to any one of claims 1 to 5, wherein a foot frame is formed on the footrest plate having the chromic material.

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