JP2000175878A - Body fat measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a planta massage which is effective to suppress obesity, and a measurement of a body weight and body fat which are barometers for obesity, by a single device. SOLUTION: A pulse power source 11 and a human body impedance measuring circuit 12 are built in a body weight measuring base 1, and on the upper surface, an operation panel P and a pair of right and left electrode foot mats F, F are arranged, and behind the heel sections of the electrode foot mats F, F, heel supporting plates 2, 2 are erected. The electrode foot mats F, F are divided into four electrode blocks F1, F2, F3 and F4, and on the surface of respective electrode blocks F1, F2, F3 and F4, a plurality of depressing electrode elements (a) are projected, and arranged into a matrix state. In this case, for the heel supporting plates 2, 2, on the inside of a curved plate having insulating property, a power feed side electrode E1 and a detection side electrode E2 which have a width being slightly wider than an ankle, are fitted while providing a gap in the lateral direction, and a four terminal electrode is constituted of these power feed side electrodes E1, E1 and the detection side electrodes E2, E2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body fat measuring apparatus having a function of performing a foot massage by arranging acupoint electrodes corresponding to acupoints on the right and left soles on a weight scale and a weight measuring table.

[0002]

The cause of obesity is that the increase of cholesterol and waste products in the blood obstructs blood circulation and accumulates fat in the body. The feet play an important role in blood circulation, as it is called the second heart. Because the feet are far from the heart and at the lowest point of the body, blood circulation tends to stagnate. For this reason, when a pulse current is applied to the acupuncture points of the sole and massaged, the muscles at the end of the feet are stimulated to improve blood flow, activate the action of sending out blood from the heart, and smoothen the blood circulation of the whole body, In addition to lightening the burden on the body, it also promotes the flow of lymph and blood in the internal organs and organs associated with the acupoints of the soles, activates metabolism, and removes excess body fat. In addition, massage of acupoints called springs at the lower part of the soles of the soles of the feet and acupuncture points called insomnia at the upper heel stimulates the pituitary gland and adrenal glands to activate the work and suppress obesity.

[0003] On the other hand, the weight is an obesity barometer that can be easily known by a weight scale, and obesity can be prevented by measuring it daily to grasp its change and taking appropriate countermeasures. . In addition, since heavier weight does not always mean more body fat, obesity cannot be determined by evaluating only weight. Therefore, in order to determine obesity, which is closely related to many adult diseases, it is necessary to use not only body weight but also body fat percentage, which is the ratio of fat mass to body weight, as an index.

Accordingly, the present invention provides a foot scale with a sole massage function and a body fat measurement function, thereby stimulating acupoints on the soles to activate metabolism, remove excess body fat, and suppress obesity. Foot massage, which has the effect of improving body weight and body fat, which are barometers for obesity, at the same time. It was done for the purpose.

[0005]

In order to achieve the above object, the present invention is configured as follows.

That is, according to the first aspect of the present invention, there is provided an acupoint electrode corresponding to an acupoint on the left and right soles arranged on a weight measuring table;
A pulse power source connected to these acupoint electrodes, a heel plate that has four terminal electrodes attached to the left and right rear ankles to be in conductive contact with the heel portion, and a human body impedance is measured via the four terminal electrodes Human body impedance measurement means, weight measurement value output means for converting a weight measurement value measured by a weight measurement table into an electric signal and outputting the same, data input means for inputting gender, age, and height, and these human body impedance and weight A body fat measurement device includes: a body fat percentage calculation unit that calculates a body fat percentage based on a measured value and input data; and a display unit that displays the calculated body fat percentage. The invention according to claim 2 is the body fat measurement device according to claim 1, wherein the acupoint electrode is provided with a protrusion for pressing the acupoint on the sole.

[0007]

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

FIG. 1 shows a configuration diagram of a body fat measuring device embodying the present invention. The body fat measurement device includes a pulse power supply 11 and a human body impedance measurement circuit
2, an operation panel P and a pair of left and right electrode foot mats F, F are provided on the upper surface, and the heel plates 2, 2 are erected behind the heels of the electrode foot mats F, F.

The operation panel P designates the part of the sole where the pulse current flows, how to flow the pulse current, the type of the pulse current, the start of the human body impedance measurement, and the like, and adjusts the intensity of the pulse current.

[0010] The part of the sole of the foot includes a part showing a reflection band corresponding to the head, chest, abdomen, and waist of the body from the fingertip to the ankle. , The breast, the abdomen, and the waist, or the order from the head to the waist. In addition, the intensity of the pulse current has a sensible level, such as weakening, loosening, male, tapping, and fumbling, in order from the weakest.

The types of pulse current include toning, which has the effect of stimulating the deep part of the sole with a pulse having a low frequency of 5 to 10 Hz, exercising muscles, promoting blood circulation, and rubbing and loosening the sole. There is a drainage that stimulates the surface of the sole of the foot with a high-frequency pulse of 100 Hz, exercises the muscles of the upper layer, promotes the flow of lymph, and removes edema and the like.

The electrode foot mats F, F are divided into four electrode blocks F1, F2, F3, F4.
A plurality of pressing electrode elements a are projected on the surface of 1, F2, F3 and F4 and arranged in a matrix.

The electrode blocks F1, F2, F3, F4 are
It corresponds to the head, chest, abdomen, and waist of the reflection band on the sole in order from the top.

FIG. 2 is a sectional view of the pressing electrode element. The pressing electrode elements a are arranged with different heights according to the unevenness of the soles. For example, the height of the arch part is 20 mm, the circumference of the arch and the finger part of the finger are 15 mm, and the other parts are 10 mm. Set to about.

The pressing electrode element a is formed by applying a surface treatment such as hard chrome plating to a protruding member formed of a metal such as a stainless steel plate or a hard aluminum, duralumin, or a thin copper plate, or a plastic. Connecting.

The electrode foot mats F, F are formed by coating the surface of a sheet-like flexible urethane resin with a conductive carbon ink on a flat surface, or the surface of a flexible insulating strip-like sheet. It may be formed by bonding aluminum to the surface, or by using conductive rubber or silicon.

The heel abutment plates 2 and 2 have a power supply side electrode E1 and a detection side electrode E slightly wider than the ankle inside the insulating curved plate.
2 are mounted with a gap in the horizontal direction, and these power supply side electrodes E1, E1 and detection side electrodes E2, E2 constitute a four terminal electrode. The inside of the curved plate is formed of a flexible elastic material, and presses the power supply side electrodes E1, E1 and the detection side electrodes E2, E2 against the rear ankle.

The power supply side electrodes E1, E1 and the detection side electrodes E2,
E2 is formed by coating the surface of a flexible urethane resin with a conductive carbon ink. Alternatively, it may be formed of a flexible insulating strip-shaped sheet with aluminum sheet adhered to the surface, or conductive rubber or silicon (rubber or silicon mixed with metal powder).

FIG. 3 shows a block diagram of the pulse power supply.
The pulse power supply 11 reads out the type of the pulse current specified on the operation panel P from the memory 15 by the CPU 14,
A reference clock generator 1 based on the type of the pulse current
The digital trigger signal obtained by dividing the clock pulse of No. 14 is input to the pulse generator 117 via the I / O interface 16 and the D / A converter 116, and generates a voltage pulse having a predetermined width and frequency to generate a voltage pulse of the transformer T1. Supply to the primary side.

A transformer T2 is connected in parallel with the transformer T1, and a current detection circuit 118 is connected to the transformer T2 to measure a current value and monitor whether an overcurrent is flowing. The detection current detected by the current detection circuit 118 is A / D
CP via the converter 119 and the I / O interface 16
When the current value exceeds the reference, the cutoff switch 111 is provided by the current protection circuit 1110.
Activate 1 to shut off the circuit.

One ends of switching circuits 1112A and 1112B are connected to the secondary sides of the transformers T1 and T2, respectively, and a pair of left and right electrode blocks F1, F2,. F3 and F4 are branched and connected. The switching circuits 1112A and 1112B are switching circuits of photocoupler connection, and the corresponding switching units 1113A,
An arbitrary photocoupler is energized by the output signal of 113B to perform switching. Thereby, the electrode block F
A pulse current generated by the pulse generator 117 is supplied between electrodes obtained by arbitrarily combining 1, F2, F3, and F4.

FIG. 4 is a block diagram of a body fat measuring means embodying the present invention. The body fat measuring means A includes power supply electrodes E1, E1 provided on the heel plates 2, 2, and a detection electrode E.
2, a human body impedance measurement circuit 12 for measuring human body impedance via E2, a weight measurement value output means A1 for converting a weight measurement value measured by a weight measurement table into an electric signal and outputting the electric signal, and an operation panel P Data input means A2 for inputting gender, age, and height, body fat percentage calculating means A3 for calculating body fat percentage based on these human body impedance, weight measurement value and input data, and data calculated on LCD of operation panel P. Display means A4 for displaying body fat percentage
It consists of.

The ratio of the amount of body fat to the body weight is called the body fat percentage, and the body weight is divided into body fat mass and lean body mass in exercise physiology. Lean tissue is composed of muscle and bone, most of which is water, and also consists of solid components and minerals. To determine the body fat percentage, the ratio of adipose tissue is determined from the density of the whole body, utilizing the fact that the densities of adipose tissue and lean tissue are different.

One of the measuring methods for obtaining the density of the whole body is an impedance method. This is to read the resistance value when a weak high-frequency current flows through the body using a human body impedance measuring device.Since most of the lean tissue contains body water containing electrolytes, it is easy to pass the current and the lean body weight is Is estimated.

The measurement is based on the so-called four-terminal method, in which four independent electrodes are brought into conductive contact with the skin surface of the human body to be measured at predetermined intervals. A predetermined voltage (50 kHz sinusoidal AC voltage) is applied to the two electrodes, and detection voltages are extracted from the remaining two electrodes to calculate the human body impedance. As a result, the lean body mass excluding body fat is proportional to an amount obtained by dividing the square of the height by the human body impedance, and thus the lean body mass is obtained.

FIG. 5 shows a human body impedance measuring circuit 12.
FIG. The measuring circuit 12 supplies a 50 kHz sine wave AC voltage generated by the oscillator 121 to the driving circuit 12.
2. The power is supplied to the power supply side electrodes E1 and E1 via the transformer T1 and the changeover switch 123A.

As shown in FIG. 6, the measurement of the human body impedance is performed by bringing the power supply side electrodes E1, E1 of the heel abutment plates 2, 2 and the detection side electrodes E2, E2 into contact with the rear ankle. When an AC voltage is applied to the power supply electrodes E1 and E1 by pressing the measurement start button of the operation panel P in this state, an AC potential difference is generated between the detection electrodes E2 and E2 via both feet.

The AC potential difference generated at the detection side electrodes E2, E2 is converted into a DC voltage via a changeover switch 123A, a transformer T2, a bandpass filter 124, a rectifier circuit 125, and an amplifier 126, and the waveform is shaped, level adjusted, and offset adjusted. After that, the A / D converter 127 and the I / O interface 1
6 to the CPU 14.

In order to correct a measurement error due to a change over time or a temperature characteristic of an element constituting the measuring circuit 12, the output characteristic of the detecting circuit is calibrated before measuring the human body impedance. That is, the relationship between the human body impedance Z, which is two variables, and the AC voltage V detected by the detection-side circuit is applied to a regression line Z = kV + C0. Then, the same predetermined AC voltage as when measuring the human body impedance Z is applied to both ends of the two dummy resistors R1 and R2 whose resistance values are known, and the AC voltage V generated across both ends of the dummy resistors R1 and R2 is detected. And proportional constant k and fixed constant C of the regression line
Find 0.

For this reason, a control signal is output from the CPU 14 so that the I / O interface 16, the switching unit 128,
And the changeover switch 12 via the changeover control circuit 129A.
3A is switched, and two dummy resistors R1 and R2 are connected between the secondary side of the transformer T1 and the primary side of the transformer T2. Next, a control signal is output from the CPU 14 to switch the changeover switch 123D via the I / O interface 16, the changeover unit 128, and the changeover control circuit 129B, and the measurement target is set to the dummy resistor R1 or the dummy resistor R2.
Switch to.

The body fat measuring device embodying the present invention has the above-described configuration, and has both feet connected to the electrode foot mat F of the weight measuring table 1.
On F, measurement of body weight, measurement of body fat, and sole massage are performed. Measurement of body fat, after measuring the weight first,
Input the gender, age and height via the operation panel P, put both feet on the electrode foot mats F, F so that the right and left rear ankles are tightly attached to the heel plates 2, 2 and press the measurement start button on the operation panel P. Press to do. In the sole massage, both bare feet are placed so that the heels of the electrode foot mats F, F are tightly attached to the heels 2, 2. In this state, the operation panel P of the weight measuring table 1 is operated to supply a pulse current to the electrode mats F, F. Thereby, each of the electrode blocks F1, F2, F3, F4 of the electrode foot mats F, F is connected to the head, chest, abdomen,
Stimulates the reflective zone on the sole corresponding to the lower back to relax.

[0032]

As described above, the body fat measuring device of the present invention comprises acupoint electrodes corresponding to the acupoints on the right and left soles arranged on the weight measuring table, and a pulse power supply connected to these acupoint electrodes. To electrically stimulate the acupoints on the left and right soles.
Therefore, according to the present invention, the measurement of weight, which is a barometer of obesity, and the sole massage that has the effect of suppressing obesity can be performed with a single device, which is more convenient than a mere weight scale or sole massager. Is greatly improved. In addition, in the case of a weighing scale alone, it is not frequently used, so if it is set aside, useless space is taken. However, since it can usually be used as a foot massager, the utilization rate increases and it does not become an obstacle.

Further, the body fat measurement device of the present invention comprises a heel plate which has a four-terminal electrode to be electrically conductively attached to the left and right rear ankles, standing behind the heel, and a human body impedance through the four-terminal electrode. Body impedance measuring means for measuring the weight, a weight measurement value output means for converting the weight measurement value measured by the weight measurement table into an electric signal and outputting the electric signal,
Data input means for inputting age and height, body fat percentage calculating means for calculating body fat percentage based on these human body impedance, weight measurement value and input data, and display means for displaying the calculated body fat percentage . Therefore, according to the present invention, body fat can be easily measured simply by placing both feet on the weight measuring table. In addition, it is possible to more reliably determine that obesity, which is insufficient only with weight, using the body fat percentage as an index.

Further, in the body fat measuring device of the present invention, the acupoint electrode is provided with a projection for pressing the acupoint on the sole. Therefore, according to the present invention, since the acupoint electrode presses and abuts the acupoint on the sole to increase the conductivity, and physically stimulates the acupoint of the sole, the massage effect can be further enhanced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a body fat measurement device embodying the present invention.

FIG. 2 is a sectional view of a pressing electrode element.

FIG. 3 is a block diagram of a pulse power supply.

FIG. 4 is a block diagram of a body fat measurement unit.

FIG. 5 is a block diagram of a human body impedance measuring circuit.

FIG. 6 is an explanatory diagram of a method for measuring human body impedance.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Weight measuring table 11 Pulse power supply 114 Reference clock generator 116 D / A converter 117 Pulse generator 118 Current detection circuit 119 A / D converter 1110 Current protection circuit 1111 Cutoff switch 1112 Switching circuit 1113 Switching unit 12 Human body impedance measurement circuit 121 oscillator 122 drive circuit 123 changeover switch 124 bandpass filter 125 rectifier circuit 126 amplifier 127 A / D converter 128 switching unit 129 switching control circuit 14 CPU 15 memory 16 I / O interface 2 heel A A body fat measuring means A1 body weight measurement Value acquisition means A2 Data input means A3 Body fat percentage calculation means A4 Display means C Connector F Electrode foot mat F1-F4 Electrode block E Electrode P Operation panel T1-T4 Transformer

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4C027 AA06 EE01 EE03 FF00 FF01 FF02 GG00 HH11 KK00 KK03 KK05 4C053 FF04 FF10

Claims (2)

[Claims] An acupoint electrode corresponding to acupoints on the right and left soles arranged on a weight measuring table; a pulse power supply connected to these acupoint electrodes; and a conductive contact with the left and right rear ankles standing up behind the heel. A heel plate to which a four-terminal electrode should be attached; a human body impedance measuring means for measuring the human body impedance via the four-terminal electrode; and a weight measurement for converting the weight measurement value measured by the weight measurement table into an electric signal and outputting the signal. Value output means, data input means for inputting gender, age, and height; body fat percentage calculating means for calculating body fat percentage based on these human body impedance, weight measurement values and input data; and calculated body fat percentage Body fat measurement device comprising: 2. The body fat measurement device according to claim 1, wherein the acupoint electrode is provided with a projection for pressing the acupoint on the sole.