JP7088466B2 - Physical characteristics measuring device - Google Patents

Description

The present invention relates to a physical characteristic measuring device for measuring the position of the center of gravity of the body and the turning angle of each part of the body.

In sports competitions, in addition to the muscle mass of the body, high flexibility is required for each part of the body such as joints, tendons, fascia, and skin. For example, even if rigorous training can significantly increase muscle mass, without the flexibility and elasticity of other body compositions, not only will the athlete not move as expected, but he will be seriously injured. There is a possibility that it will end up. For this reason, it is a big issue for athletes who engage in sports competitions to increase their muscle mass and how to increase their physical flexibility.

In the past, there were devices that put a load on the body to increase muscle mass, but there were few devices that could make the body flexible or know the flexibility of the body.

Under such circumstances, in order to increase the flexibility of the body, sports trainers support athletes' flexible gymnastics and use large-scale stretch training machines.

However, there is a limit to the use of flexible gymnastics and training machines with the help of sports trainers. Since the help of the sports trainer is always required, the sports trainer may be overwhelmed, or it may be necessary to go to the place where the training machine is located, which may limit the time and place for performing flexible exercises. Therefore, the effect of increasing the flexibility of the body could not be expected so much.

In addition, by grasping the physical characteristics of the athlete in advance, it is possible to improve the safety of sports and to find physical problems. For example, the hip joint is the most important joint for humans who move by bipedal walking, and when this joint becomes immobile, humans cannot walk. The problem of elderly people whose stride length is shrinking is also caused by poor movement of the hip joint. Therefore, in the clinical practice of rehabilitation, rehabilitation to ensure the flexibility of the hip joint is always performed. The flexibility of athletes' hips and other joints is also an important factor when playing any sport, not just snowboarding and golf. These physical characteristics can be used as a standard to prevent injuries in sports, and by further increasing their flexibility and improving physical ability, in sports. It will also be possible to achieve good results.

However, there is no affordable measuring device (meaning a simple measuring device with low purchase and maintenance costs) for measuring the flexibility of each joint such as the hip joint, and further, in order to further increase their flexibility. There was no affordable training device (meaning a simple training device with low purchase and maintenance costs).

In addition, there is another important factor for athletes. It is the balance of one's body. Specifically, it is appropriate for the athlete to know in advance where the position of the center of gravity of the athlete's body is, or how the position of the center of gravity moves (changes) depending on the state and posture of the body. It will be one of the criteria for selecting a sport that has been selected, and it will be extremely important when training a sport that involves movement (change) of the position of the center of gravity.

Here, as prior art, there is a body characteristic measurement system and a body characteristic measurement method described in Japanese Patent No. 5357361 (Patent Document 1).

The invention described in Patent Document 1 is a body characteristic measurement system for measuring the position of the center of gravity of the body and / or the turning angle of each part of the body, and is a rotating portion that rotates about an axis of a central axis in a state where the body is in contact with the body. And a rotation angle detecting unit that detects the rotation angle of the rotating unit, and a turning angle measuring unit that measures the turning angle of each part of the body based on the detection result of the rotation angle detecting unit, and at least a part of the body. It has a plurality of load measuring units for measuring a load at a location, a center of gravity position measuring unit for measuring the position of the center of gravity of the body based on the measurement results of the plurality of load measuring units, and a turning angle measuring unit for measuring the position of the center of gravity. It is configured so that it can be mounted on the upper surface of the unit, and with the turning angle measuring unit mounted on the upper surface of the center of gravity position measuring unit, the center of gravity position measuring unit measures the turning angle of the body by the turning angle measuring unit at the same time. The change in the position of the center of gravity when the body is turning is configured to be measurable, and the turning angle measuring part is superimposed on the upper surface of the center of gravity position measuring part on the lower surface of the turning angle measuring part or the upper surface of the center of gravity position measuring part. It is a physical characteristic measurement system characterized in that a convex portion that sometimes comes into contact with each other side is provided.

In particular, by superimposing the turning angle measuring unit on the upper surface of the center of gravity position measuring unit, the change in the center of gravity position during the turning of the body is measured at the same time as the turning angle of the body is measured.

Japanese Patent No. 5357361 Japanese Unexamined Patent Publication No. 6-185955 Japanese Unexamined Patent Publication No. 8-224224

However, since the turning angle measuring unit located on the upper side is stacked on the upper surface of the center of gravity position measuring unit located on the lower side and the measurer is placed on the upper surface of the turning angle measuring unit, the load of the measurer is directly applied to the turning angle measuring unit. Acts as a target. In addition, when the measurer's foot is rotated, pressure acts on the center of gravity position measuring section located below via the turning angle measuring section, so that the relative between the turning angle measuring section and the center of gravity position measuring section is relative. If the deviation or the like occurs, the center of gravity position measuring unit cannot detect the accurate center of gravity behavior.

In addition, since the structure is such that the turning angle measuring unit and the center of gravity position measuring unit are overlapped with each other, the thickness increases in the height direction, and the trajectory of the center of gravity fluctuation appears due to the fear of the measurer or wobbling during measurement. .. As a result, there is a problem that the measurement result of the position of the center of gravity is adversely affected.

Therefore, in order to solve the above problems, it is an object of the present invention to provide a physical characteristic measuring device capable of accurately measuring the position of the center of gravity of the body and the turning angle of each part of the body with a simple configuration. ..

The present invention comprises a housing composed of a single base portion, a single rotating portion provided on the base portion and rotating around the axis of the central axis with the body of the measurer resting on the base portion, and the above-mentioned housing. A rotation angle detection unit provided on the base unit to detect the rotation angle of the rotation unit, and a rotation angle measurement unit provided on the base unit to measure the rotation angle of each part of the body based on the detection result of the rotation angle detection unit. A portion, a plurality of legs extending radially outward from the circumferential portion of the base portion and grounding to the installation surface, and a pressure detecting portion for the leg portion via a mounting position adjusting mechanism. When the leg is attached so as to face the leg side and the base is lifted from the installation surface and the leg touches the installation surface, the load of the body of the measurer on the rotating portion is applied to the leg. It has a load measuring unit that measures by detecting the load acting from the unit, and a center of gravity position measuring unit that is provided on the base unit and measures the position of the center of gravity of the body based on the measurement result of the load measuring unit. By rotating the rotating part with at least a part of the body placed on the rotating part, the turning angle of each part of the body is measured by the turning angle measuring part, and at least a part of the body is placed on the rotating part. It is characterized in that the change in the position of the center of gravity of the body when the rotating portion is rotated in the mounted state is measured.

In this case, it is preferable that the base portion and the leg portion are integrally formed of members of the same quality.

According to the present invention, the position of the center of gravity of the body and the turning angle of each part of the body can be easily measured with a simple configuration.

The measurer rests on a single rotating part that is rotatably provided for a single base part, and by rotating the rotating part, the turning angle of each part of the body is measured and the position of the center of gravity of the body changes. Can be measured. As a result, the physical characteristic measuring device can be miniaturized and configured with a simple structure, psychological anxiety for the measurer can be eliminated, and stable measurement results can be obtained. In addition, cost reduction can be realized by reducing the number of parts of the body characteristic measuring device.

Further, since the base portion and the leg portion are integrally formed of members of the same quality, the material and structure are continuous between the base portion and the leg portion. As a result, the load absorption due to partial deformation does not occur as compared with the structure in which the material is different or different types are combined, so that the load fluctuation of the measurer is transmitted to the load measuring unit without interference on the way. Will be done. As a result, the change in the position of the center of gravity of the body of the measurer can be accurately measured.

Further, since the leg portion touches the installation surface with the base portion floating from the installation surface, the load measuring portion detects the load acting from the leg portion (installation surface). At this time, the load transmitted from the rotating portion is not measured, and the pressure is detected through the installation surface where the strength becomes infinite. In this way, by arranging the pressure detection unit (load button of each load cell) of the load measurement unit downward, it acted on the installation surface from multiple legs without being affected by deformation or absorption of the rotating unit. By detecting the load as a reaction force from the installation surface, it is possible to measure the load accurately.

On the other hand, in a structure that detects the load applied to the rotating part by arranging the pressure detecting part (load button of each load cell) of the load measuring part upward as in the prior art, it absorbs by elastic deformation of the rotating part. Due to the non-homogeneity of the material such as, it becomes impossible to accurately detect the change in the load, but the present invention can solve this problem.

It is a conceptual diagram of the body characteristic measurement system which has the body characteristic measurement apparatus which concerns on 1st Embodiment of this invention. It is a top view of the body characteristic measuring apparatus which concerns on 1st Embodiment of this invention. It is a top view of the state which the body characteristic measuring apparatus which concerns on 1st Embodiment of this invention is arranged side by side. It is a figure which showed the upper surface of the leg part of the body characteristic measuring apparatus which concerns on 1st Embodiment of this invention. It is an exploded view when the load measuring part is attached to the leg part of the body characteristic measuring apparatus which concerns on 1st Embodiment of this invention. It is a figure of the state which the load measuring part is attached to the leg part of the body characteristic measuring apparatus which concerns on 1st Embodiment of this invention, via a mounting position adjustment mechanism. It is a figure at the time of explaining the principle of calculating the position of the center of gravity based on the load measurement result of two load cells. It is a figure at the time of explaining the principle of calculating the position of the center of gravity based on the load measurement result of three load cells. It is a system block diagram of the body characteristic measuring apparatus which concerns on 1st Embodiment of this invention. It is a system block diagram of the center of gravity position measurement part.

The body characteristic measuring apparatus according to the embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the body characteristic measuring system 100 has a pair of body characteristic measuring devices 104L and 104R having the functions of a turning angle meter and a center of gravity sway meter.

The body measurement system 100 is electrically connected to the terminal device (PC) 112 by a signal line 106 via an amplifier 108 and an AD conversion board 110.

The amplifier 108 amplifies, for example, an analog value data signal from a rotary encoder and a load cell 122A (see FIGS. 5 and 6) described later.

The AD conversion board 110 converts an analog signal into digital data. A printer 114 is electrically connected to the terminal device 112.

The pair of body characteristic measuring devices 104L and 104R are composed of a body characteristic measuring device 104L for measuring the left foot and a body characteristic measuring device 104R for measuring the right foot. Since both have the same configuration, the body characteristic measuring device 104L for measuring the left foot will be described below, and the description of the body characteristic measuring device 104R for measuring the right foot will be omitted.

As shown in FIGS. 2, 3, and 5, the body characteristic measuring device 104L for measuring the left foot is provided on the base portion 116 and the base portion 116 so as to be around the axis of the central axis with the body of the measurer resting on the base portion 116. It has a housing composed of a rotating rotating portion 118 and a rotating portion 118.

As shown in FIG. 9, the base portion 116 is, for example, a swivel that measures the swivel angle of each part of the body based on the detection results of the rotation angle detection unit 130C that detects the rotation angle of the rotation unit 118 and the rotation angle detection unit 130C. It has an angle measuring unit 130D and a center of gravity position measuring unit 130E for measuring the position of the center of gravity of the body based on the measurement result of the load measuring unit 122.

The turning angle measuring unit 130D may be replaced with a CPU or the like built in the terminal device (PC) 112.

The center of gravity position measuring unit 130E may be replaced with a CPU or the like built in the terminal device (PC) 112.

The base portion 116 has a plurality of leg portions 120 extending extending around the circumference thereof. In the present embodiment, three legs 120 are adopted, but the number is not limited to three. The legs 120 are formed at equal intervals along the circumferential direction of the rotating portion 118.

The leg portion 120 has, for example, a load measuring portion 122 capable of measuring a load with the body of the measurer resting on the upper surface of the rotating portion 118.

The mechanism and principle by which the rotating portion 118 rotates with respect to the base portion 116 are the same as the contents of Japanese Patent No. 5357361, and the description thereof will be omitted.

The principle of the rotation angle detection unit 130C and the rotation angle measurement unit 130D is the same as the content of Japanese Patent No. 5357361, and a rotary encoder (potential meter) is used. This makes it possible to detect the rotation angle (turning angle) of the rotating portion 118.

The operating principle of the rotary encoder is the same as before. Although not shown, for example, a slit disk with equidistant grid scales is attached to a gear shaft that also functions as a rotary axis of a rotary encoder, and scales with the same spacing are engraved relative to this. The fixed slit is fixed to the main body of the rotary encoder. A light emitting element (light emitting diode) and a light receiving element (phototransistor) are installed so as to sandwich these two slits. The light emitted from the light emitting element blocks the optical path for each slit pitch due to the rotation of the gear shaft, and repeats light and dark as the number of times proportional to the amount of rotation. The light and darkness is taken out as an electric signal by the light receiving element, and the waveform is shaped into a rectangular wave to be the output signal of the rotary encoder. This output signal is a two-phase signal whose phase is adjusted so that it deviates from each other by 1/4 pitch. When the rotation direction is inverted, this phase is also inverted, and by combining with a reversible counter having a direction discrimination circuit. Add / subtract the amount of rotation. Thereby, the rotation angle (turning angle) of the rotating portion 118 can be detected.

The method is not limited to the rotary encoder. Instead of the rotary encoder, for example, a 3-axis angle sensor and all sensors that detect an angle with light (all not shown) can be applied.

A coupling (not shown) is attached to the gear shaft. The coupling has a function of absorbing an external force or an impact acting on the second bevel gear to prevent damage to the rotary encoder by using a coupling having a conventional configuration.

The base portion 116 includes a fixing plate (not shown) for mounting a rotary encoder.

A control unit (CPU, etc.) 130A (CPU, etc.) that causes the base unit 116 to normally function electronic components such as a rotary encoder and outputs data of the rotation angle (turning angle) of the rotation unit 118 to the terminal device 112 (such as a CPU). (See FIG. 9) is provided.

Here, as shown in FIGS. 2 to 6, the base portion 116 and the leg portion 120 are formed of members of the same quality (for example, a steel plate). The load measuring unit 122 is arranged downward on the upper surface of the leg portion 120, and the leg portion 120 is in contact with the installation surface H with the base portion 116 floating from the installation surface H, so that the load measuring unit 122 is in contact with the installation surface H. Detects the pressure acting from the installation surface H as the load of the measurer.

A load measuring unit 122 is attached to the upper surface of the leg portion 120 via the mounting position adjusting mechanism 124. As a result, the position of the load measuring unit 122 can be appropriately adjusted by the mounting position adjusting mechanism 124.

For the load measuring unit 122, for example, a load cell 122A is used. The load button (not shown) of each load cell 122A is arranged so as to face downward.

In addition, instead of the load cell 122A, a strain gauge or the like may be used to detect the strain caused by the elastic deformation of the base portion 116 or the leg portion 120, and the strain amount may be used to calculate the load. Hereinafter, a case where the load cell 122A is used as the load measuring unit will be described.

As shown in FIG. 2, each load cell 122A is set to be located at the apex of a substantially triangle (for example, an isosceles triangle or an equilateral triangle).

The number of load cells 122A is not limited to three, and may be four or more.

As shown in FIGS. 9 and 10, the center of gravity position measuring unit 130E synthesizes, for example, the center of gravity position calculating unit 130E1 that calculates the center of gravity position based on the measurement results from each load cell 122A and the center of gravity positions of the left and right feet. It has a center of gravity position synthesizing unit 130E2.

The center of gravity position calculation unit 130E1 and the center of gravity position synthesis unit 130E2 may be provided on the terminal device 112 side.

The center of gravity position calculation unit 130E1 calculates the center of gravity position based on the measurement results of the normal stress in the three load cells 122A.

Here, it is possible to calculate the position of the center of gravity when the measurer's foot is placed on the rotating portion 118. The position of the center of gravity is specified by each value (X1, Y1) of the X coordinate and the Y coordinate. The method of specifying the position of the center of gravity will be described later.

The center of gravity position synthesizing unit 130E2 synthesizes the center of gravity position based on the center of gravity measurement result by one body characteristic measuring device 104L and the center of gravity measurement result by the other body characteristic measuring device 104R. This identifies a single center of gravity position, which is the position of the center of gravity of the measurer's body. The position of the center of gravity after synthesis is specified by each value (X3, Y3) of the X coordinate and the Y coordinate. The method of synthesizing the position of the center of gravity will be described later.

The storage unit 130B stores in advance a coordinate calculation program to be executed in the calculation process of the center of gravity position calculation unit 130E1 and the center of gravity position synthesis unit 130E2. By operating this coordinate calculation program, the calculation result by the center of gravity position calculation unit 130E1 is calculated as the center of gravity position (X1, Y1) on the X coordinate and the Y coordinate, and the calculation result by the center of gravity position synthesis unit 130E2 is the X coordinate and Y. It is calculated as the position of the center of gravity (X3, Y3) on the coordinates.

The center of gravity position (X1, Y1) and the center of gravity position (X3, Y3) are displayed on the display unit of the terminal device 112. It should be noted that the control may be made so that only the position of the center of gravity (X3, Y3), which is the final result, is displayed on the display unit of the terminal device 112.

Next, a method of measuring the position of the center of gravity using each load cell 122A will be described.

Each body characteristic measuring device 104L, 104R applies the principle of the lever to calculate the action center point of the vertical load from the measured values of the three load cells 122A located at each apex of the isosceles triangle on the horizontal plane. This is the position of the center of gravity on the horizontal plane.

For example, as shown in FIG. 7, when the support rod is supported by the support point A and the support point B and the load W is applied to the point P, the loads of WA and WB are applied to the support point A and the support point B, respectively. If added, the balance equation of the moment centered on the point P is
X ・ WA = (LX) ・ WB
(L: Distance between support point A and support point B)
Will be.

To organize this for position X,
X = L ・ WB / (WA + WB)
Will be.

Therefore, by detecting the vertical load at the support point A and the support point B, respectively, the position X can be calculated assuming that the distance L between the support point A and the support point B is known.

Here, considering the position of the center of gravity on the plane of the body characteristic measuring device 104L, as shown in FIG. 8, when the load W acts on an arbitrary point P (X, Y), each load cell (P1, P2, P3). ) Detects the loads of W1, W2, and W3.
The balance equation of the moment around the X axis at the origin O is
W ・ Y + W1 ・ L0 + W2 ・ L0 = W3 ・ L
Will be.

To organize this for position Y,
Y = (W3, L-W1, L0-W2, L0) / W ... (1 set)
Will be.

The balance equation of the moment around the Y axis at the origin O is
W ・ X + W2 ・ m = W1 ・ m
Will be.

To organize this for position X,
X = (W1-W2) ・ m / W …… (2 formulas)
Will be.

In addition, the force balance formula is
W = W1 + W2 + W3 …… (3 formulas)
Will be.

Further, W1, W2, and W3 are measured values in each load cell. L, L0, and m can be calculated from the known positional relationship between the load cells. Thereby, the coordinates (X, Y) of an arbitrary point P can be specified from (Equation 1) to (Equation 3).

Next, a method of synthesizing the center of gravity position by the center of gravity position synthesizing unit 130E2 will be described.

Using a pair of physical characteristic measuring devices 104L and 104R, the measurer's left foot is placed on the rotating portion 118 of one physical characteristic measuring device 104L, and the measurer's right foot is placed on the rotating portion 118 of the other physical characteristic measuring device 104R. Then, the position of the center of gravity of the left half of the body of the measurer is calculated from the detection result of one of the body characteristic measuring devices 104L, and the position of the center of gravity of the right half of the body of the measurer is calculated from the detection result of the other body characteristic measuring device 104R. According to such a measuring method, when calculating the position of the center of gravity of the body of the measurer, it is necessary to synthesize the position of the center of gravity of the left half of the measurer and the position of the center of gravity of the right half of the measurer.

Therefore, the center of gravity position PL (XL, YL) of the left half of the body based on the value measured by one body characteristic measuring device 104L and the center of gravity position PR of the right half of the body based on the value measured by the other body characteristic measuring device 104R ( XR, YR) and the combined center of gravity are calculated.

Specifically, the load ML from the left half of the body (the total value of the vertical loads measured by the three load cells arranged in one of the body characteristic measuring devices 104L) acts on the points PL (XL, YL). This is a mechanical model in which a load MR (total value of vertical loads measured by three load cells arranged in the other body characteristic measuring device 104R) acts on the point PR (XR, YR).

The combined center of gravity (X3, Y3), which is the center of gravity after synthesis, is
X3 = (ML / XL + MR / XR) / (ML + MR)
Y3 = (ML / YL + MR / YR) / (ML + MR)
Can be calculated by

By the above method, the center of gravity position (X3, Y3) after synthesis is calculated by the center of gravity position synthesizing unit 130E2.

Here, the process of synthesizing the center of gravity position by the center of gravity position synthesizing unit 130E2 synthesizes the positions of both centers of gravity when the measurer is placed across the one body characteristic measuring device 104L and the other body characteristic measuring device 104R. It is necessary to determine the position of the center of gravity of the entire body of the measurer.

The measurement result by the rotary encoder of the body characteristic measuring device 104L and the measurement result by the load cell 122A can be output as data to the external terminal device 112.

In the configuration in which the center of gravity position calculation unit 130E1 and the center of gravity position synthesis unit 130E2 are built in the body characteristic measuring device 104L side, the measurement result of the turning angle and the result of the center of gravity position are output to the terminal device 112 as data.

The display unit of the terminal device 112 displays the turning angle, the position of the center of gravity, and the relationship between the two. Further, the turning angle and the position of the center of gravity can be continuously measured in time, and the change in the turning angle and the change in the position of the center of gravity are displayed on the display unit of the terminal device 112 in chronological order.

According to the present embodiment, the measurer is placed on the upper surface of the single rotating portion 118 rotatably provided with respect to the single base portion 116, and the rotating portion 118 is rotated to rotate the turning angle of each part of the body. And can measure the change in the position of the center of gravity of the body. As a result, the physical characteristic measuring device 104L can be configured in a compact and simple structure, psychological anxiety for the measurer is eliminated, and stable measurement results can be obtained. In addition, cost reduction can be realized by reducing the number of parts of the body characteristic measuring device 104L.

Since the base portion 116 and the leg portion 120 are integrally formed of members of the same quality, the material and structure become continuous. As a result, the load absorption due to local deformation does not occur as compared with the structure in which the material is different or different types are combined, so that the load fluctuation of the measurer is transmitted to the load measuring unit 122 without interference. To. As a result, the change in the position of the center of gravity of the body of the measurer can be accurately measured.

Since the leg portion 120 is in contact with the installation surface H with the base portion 116 floating from the installation surface H, the load measuring portion 122 detects the pressure acting on the installation surface H (leg portion 120). That is, the load is not measured via the rotating portion 118, but is detected as the pressure from the installation surface H whose strength becomes infinite. By arranging the pressure detection unit (load button of each load cell 122A) of the load measurement unit 120 downward in this way, it is installed from the plurality of leg units 120 without being affected by deformation or absorption of the rotating unit 118. By detecting the load acting on the surface H as a reaction force from the installation surface H, an accurate load can be measured.

On the other hand, as in the prior art, in a structure in which the pressure detection unit (load button of each load cell 122A) of the load measurement unit 122 is arranged upward to detect the load applied to the rotation unit 118, the elastic deformation of the rotation unit 118 is performed. Due to the inhomogeneity of the material such as absorption due to the above, it becomes impossible to accurately detect the change in the load, but the present invention can solve this problem.

Further, in the configuration shown in FIG. 15 of Japanese Patent No. 5357361, a load cell is installed at the tip of the guide member. In this case, since a part of the load is absorbed by the elastic deformation of the guide member, it is not possible to accurately measure the position of the center of gravity. On the other hand, in the present embodiment, since the load measuring unit 122 is installed on the leg portion 120 and the leg portion 120 and the base portion 116 are integrally formed of the same material, a loss occurs in the load transmission process. Almost never occurs. As a result, the load measuring unit 122 measures the accurate load, and the accuracy of the position of the center of gravity can be improved.

Further, in the technique of Patent No. 5357361, since two rotating portions, which are a swivel angle meter and a center of gravity sway meter, are stacked in the vertical direction, it is necessary to correct the position of the center of gravity by the weight of the swivel angle meter. However, in the present embodiment, since the rotation angle and the position of the center of gravity can be measured by the single rotating portion 118 and the base portion 116, the correction process for correcting the position of the center of gravity becomes unnecessary.

The present invention is not limited to the case where it is used as a training device for sports, and is a training device having an effect of widening the range of motion of joints such as a rehabilitated person and an elderly person for recovering from a handicapped person or an injury. Can also be used as. In addition, it is possible to objectively evaluate the developmental state of motor ability by measuring children over time. The present invention can also be used as a device for acquiring valuable personal data for determining the shape, dimensions, materials, etc. of what is worn, such as footwear, insoles, and socks.

100 Physical characteristic measurement system 104L Physical characteristic measurement device 104R Physical characteristic measurement device 106 Signal line 108 Amplifier 110 AD conversion board 112 Terminal device (PC)
114 Printer 116 Base 118 Rotating section 120 Leg measuring section 122 Load measuring section 122A Load cell 124 Mounting position adjustment mechanism 130A Control section 130B Storage section 130C Rotating angle detecting section 130D Turning angle measuring section 130E Center of gravity position measuring section 130E1 Center of gravity position calculation section 130E2 Center of gravity Position synthesis section

Claims (2)

A housing composed of a single base portion and a single rotating portion provided on the base portion and rotating around the axis of the central axis with the body of the measurer resting on the base portion.
A rotation angle detecting unit provided on the base unit and detecting the rotation angle of the rotating unit,
A turning angle measuring unit provided on the base unit and measuring the turning angle of each part of the body based on the detection result of the rotation angle detecting unit.
A plurality of legs extending radially outward from the circumferential portion of the base portion and grounding to the installation surface, and
When the pressure detection unit is attached to the leg portion via the attachment position adjusting mechanism so as to face the leg portion side, and the leg portion touches the installation surface with the base portion floating from the installation surface. In addition, a load measuring unit that measures the load of the body of the measurer on the rotating portion by detecting the load acting on the legs , and
A center of gravity position measuring unit provided on the base unit and measuring the position of the center of gravity of the body based on the measurement result of the load measuring unit.
Have,
By rotating the rotating part with at least a part of the body placed on the rotating part, the turning angle of each part of the body is measured by the turning angle measuring part, and at least a part of the body is placed on the rotating part. A physical characteristic measuring device that measures a change in the position of the center of gravity of the body when the rotating portion is rotated in a placed state. The body characteristic measuring device according to claim 1, wherein the base portion and the leg portion are integrally formed of members of the same quality.

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