JP3464398B2 - Body fat measurement device - Google Patents

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 device having a weight scale and a weight measuring table with acupoint electrodes corresponding to acupoints on the left and right soles and having a function of performing a foot massage.

[0002]

The cause of obesity is to obstruct blood circulation and store fat in the body mainly due to increase in cholesterol and waste products in blood. The foot plays an important role in blood circulation, which is called the second heart. Since the foot is far from the heart and is at the lowest point in the body, blood flow is easily blocked. Therefore, when a pulse current is applied to the acupoints on the soles of the feet to massage, the muscles at the end of the feet are stimulated to improve blood flow, activate the blood pumping action of the heart, and smooth the blood circulation throughout the body It reduces the burden on the body and promotes the flow of lymph and blood in the internal organs and organs related to the acupoints on the soles to activate metabolism and remove excess body fat. In addition, if you massage the acupuncture point called the spring in the lower part of the toes of your feet and the acupuncture point called insomnia in the upper part of your heel, it stimulates the pituitary gland and adrenal gland to activate the work and suppress obesity.

On the other hand, the body weight is a barometer of obesity that can be easily known by a weight scale, and it is possible to prevent obesity by daily measuring and grasping the change and taking appropriate appropriate measures. . Further, being heavy does not necessarily mean having a large amount of body fat, and therefore it is not possible to evaluate obesity by evaluating only body weight. Therefore, in order to determine obesity, which is closely related to many adult diseases, it is necessary to use not only the body weight but also the body fat percentage, which is the ratio of the amount of fat in the body weight, as an index.

In view of the above, the present invention adds a sole massaging function and a body fat measuring function to a scale to stimulate the acupoints on the sole of the foot to activate metabolism, remove excess body fat, and suppress obesity. A foot massage that is effective for measuring body weight and body fat at the same time, which is a barometer of obesity. It was made for the purpose.

[0005]

In order to achieve the above object, the present invention has the following constitution.

That is, according to the invention of claim 1, the acupuncture electrodes corresponding to the acupoints of the left and right soles arranged on the weight measuring table arranged on the weight measuring table, the pulse power source connected to these acupoint electrodes, and the heel part. Standing up rearward, attach the four terminal electrodes that should be in conductive contact with the left and right rear ankles.
Human body impedance measuring means for measuring the human body impedance via the terminal electrode, weight measuring value output means for converting the weight measured value measured by the weight measuring table into an electric signal and outputting it, and data for inputting gender, age and height Body fat measurement comprising input means, 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 It is a device. Invention, the following claims 2
The inside of the heel pad is made of a flexible elastic material.
The body fat measuring device according to claim 1, which is a characteristic.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a block diagram of a body fat measuring device embodying the present invention. The body fat measuring device includes a pulse power source 11 and a human body impedance measuring circuit 1 which will be described later on the weight measuring table 1.
2 is built in, the operation panel P and a pair of left and right electrode foot mats F, F are provided on the upper surface, and the heel contact plates 2, 2 are erected at the rear of the heel part of the electrode foot mats F, F.

The operation panel P designates a portion of the sole of the foot through which the pulse current is applied, a method of applying the pulse current, a type of the pulse current, a start of measurement of human body impedance, and the strength of the pulse current is adjusted.

The part of the sole of the foot has a part showing a reflection band corresponding to the head of the body, the chest, the abdomen, and the waist from the fingertips to the ankles. , Chest, abdomen, waist individually, or from head to waist in order. Further, the intensity of the pulse current has a sensory level such as loosening, loosening, male, tapping, and humming in order from the weakest.

The types of pulse current include toning which has the effect of stimulating the deep part of the sole of the foot with a pulse having a low frequency of 5 to 10 Hz, exercising muscles to promote blood circulation, and rubbing the sole of the foot. There is a drainage effective for stimulating the surface of the sole of the foot with a high frequency pulse of 100 Hz, exercising the muscles of the upper layer to promote the flow of lymph, and removing edema and the like.

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

The electrode blocks F1, F2, F3 and F4 are
It corresponds to the head, chest, abdomen, and waist of the reflex belt on the sole of the foot from the top.

FIG. 2 shows a sectional view of the pressing electrode element. The pressure electrodes a are arranged with different heights according to the unevenness of the sole, and for example, the height of the arch part is 20 mm, the periphery of the arch and the knuckles of the fingers are 15 mm, and the other parts are 10 mm. Set to a degree.

As the pressing electrode element a, a projection member formed of metal such as stainless steel plate, hard aluminum, duralumin, or thin copper plate, or plastic is subjected to surface treatment such as hard chrome plating, and is applied to the pulse power source 11 described later. Connecting.

The electrode foot mats F, F are formed by flattening the surface and coating the surface of a sheet-shaped flexible urethane resin with conductive carbon ink, or the surface of a flexible insulating strip-shaped sheet. It may be formed by adhering aluminum foil to, or conductive rubber or silicon.

The heel contact plates 2 and 2 are provided on the inner side of an insulative curved plate and are slightly wider than the ankle on the feeding side electrode E1 and the detecting side electrode E.
2 are mounted with a gap in the lateral direction, and the feeding side electrodes E1 and E1 and the detection side electrodes E2 and E2 form a four-terminal electrode. The inner side of the curved plate is made of a flexible elastic material and presses the power supply side electrodes E1 and E1 and the detection side electrodes E2 and E2 against the rear ankle.

Power supply side electrodes E1 and E1 and detection side electrode E2,
E2 is formed by coating the surface of a flexible urethane resin with conductive carbon ink. Alternatively, it may be formed of a flexible insulating strip-shaped sheet to which an aluminum foil is adhered, 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 the type of pulse current specified on the operation panel P from the memory 15 by the CPU 14,
Reference clock generator 1 based on the type of pulse current
The digital trigger signal obtained by dividing the clock pulse of 14 is input to the pulse generator 117 via the I / O interface 16 and the D / A converter 116 to generate a voltage pulse of 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 or not an overcurrent flows. The detection current detected by the current detection circuit 118 is A / D.
CP via converter 119 and I / O interface 16
When input to U14 and the current value exceeds the reference, the current protection circuit 1110 causes the cutoff switch 111
Activate 1 to break the circuit.

One ends of the switching circuits 1112A and 1112B are connected to the secondary sides of the transformers T1 and T2, respectively, and the other ends of the switching circuits 1112A and 1112B are made common, and a pair of left and right electrode blocks F1 and F2 are provided via a connector C. Branch connection of F3 and F4. Switching circuits 1112A and 1112B are photocoupler-connected switching circuits.
An arbitrary photocoupler is energized by the output signal of 113B to perform switching. Thereby, the electrode block F
The pulse current generated by the pulse generator 117 is supplied between electrodes in which 1, F2, F3, and F4 are arbitrarily combined.

FIG. 4 shows a block diagram of the body fat measuring means embodying the present invention. The body fat measuring means A includes the power feeding side electrodes E1 and E1 and the detection side electrode E provided on the heel pads 2 and 2.
2, a human body impedance measurement circuit 12 for measuring a 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 sex, age, and height, body fat percentage calculation means A3 for calculating the body fat percentage based on these human body impedance, weight measurement value, and input data, and calculated on the LCD of the operation panel P. Display means A4 for displaying the body fat percentage
It consists of.

The ratio of the body fat mass to the body weight is called the body fat ratio, and the body weight is divided into body fat mass and lean body mass in terms of exercise physiology. Lean tissue is composed of muscles and bones, most of which is water and other solid components and minerals. To obtain the body fat percentage, the fact that the densities of adipose tissue and lean tissue are different is used to obtain the proportion of adipose tissue from the density of the entire body.

An impedance method is one of the measuring methods for obtaining the density of the whole body. This is to read the resistance value when a weak high-frequency current flows through the body using a human body impedance measuring device.Most of the lean tissue is body water containing electrolytes, so it is easy to pass the current to reduce lean body mass. Estimate.

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 (sine wave AC voltage of 50 kHz) is applied to the two electrodes, and the detected voltage is extracted from the remaining two electrodes to calculate the human body impedance. Thus, the lean body mass excluding body fat is proportional to the 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
The block diagram of is shown. The measurement circuit 12 drives the drive circuit 12 with the sinusoidal AC voltage of 50 kHz generated by the oscillator 121.
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 human body impedance is measured by bringing the power supply side electrodes E1 and E1 and the detection side electrodes E2 and E2 of the heel pads 2 and 2 into contact with the rear ankle. When the measurement start button of the operation panel P is pressed in this state and an AC voltage is applied to the power supply side electrodes E1 and E1, an AC potential difference is generated between the detection side 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 the changeover switch 123A, the transformer T2, the bandpass filter 124, the rectifier circuit 125, and the amplifier 126, and the waveform is shaped, the level is adjusted, and the offset is adjusted. After that, A / D converter 127, I / O interface 1
Input to the CPU 14 via 6.

In order to correct a measurement error due to a change with time of elements constituting the measuring circuit 12 and a temperature characteristic, the output characteristic of the detection side circuit is calibrated in advance before measuring the human body impedance. That is, the relationship between the two variables, the human body impedance Z and the AC voltage V detected by the detection side circuit, is applied to the regression line Z = k · V + 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 at both ends of the dummy resistors R1 and R2 is detected. Then, the proportional constant k and the fixed constant C of the regression line
Ask for 0.

Therefore, the CPU 14 outputs a control signal to 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 the dummy resistor R1 or the dummy resistor R2.
Switch to.

The body fat measuring device embodying the present invention is constructed as described above, and has both feet on the electrode foot mat F of the weight measuring table 1,
Place on F and measure body weight, body fat and foot massage. To measure body fat, first weigh yourself,
Input the gender, age, and height via the operation panel P, place both feet on the heel pads 2 and 2 of the electrode foot mats F, F so that the left and right ankles fit exactly, and press the measurement start button on the operation panel P. Press to do. For the sole massage, both bare feet are placed so that the heels of the electrode foot mats F, F fit exactly on the heel pads 2, 2. In this state, the operation panel P of the weight measuring table 1 is operated to apply a pulse current to the electrode foot mats F, F. As a result, the electrode blocks F1, F2, F3, and F4 of the electrode foot mats F and F are attached to the head, chest, and abdomen of the body,
Relax by stimulating the reflex bands on the soles of the lower back.

[0032]

As described above, the body fat measuring device according to the present invention comprises the acupoint electrodes corresponding to the acupoints on the left and right soles arranged on the weight measuring table and the pulse power source connected to these acupoint electrodes. Be prepared to electrically stimulate the acupoints on the left and right soles.
Therefore, according to the present invention, it is possible to measure weight, which is a barometer of obesity, and to perform foot massage with the effect of suppressing obesity with one device, which is more convenient than simple scales or foot massagers. Is greatly improved. In addition, in the case of using only a weight scale, it is infrequently used, so it is a waste of space to leave it in place, but since it can be used as a foot massager normally, it increases the usage rate and does not get in the way.

In the body fat measuring device of the present invention, the four-terminal electrodes to be electrically conductively contacted are attached to the left and right hind ankles while standing upright at the rear of the heel part and the human body impedance through the four-terminal electrodes. A human body impedance measuring means for measuring, 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 / 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, the body fat can be easily measured only by placing both feet on the weight measuring table. In addition, it becomes possible to more reliably determine obesity in which body weight alone is insufficient using the body fat percentage as an index.

Furthermore, the body fat measuring apparatus of the present invention, all
And the inside of the plate is made of a flexible elastic material . Therefore, according to the present invention, the power supply side electrodes E1, E1 and the detection side electrode E1.
2. E2 comes into close contact with the rear ankle.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a body fat measurement device according to 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 body fat measuring means.

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

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

[Explanation of symbols]

1 scale 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 plate A body fat measuring means A1 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 to F4 electrode block E electrode P operation panel T1-T4 transformer

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP 10-127593 (JP, A) JP 9-15029 (JP, A) JP 6-296704 (JP, A) Actual flat 5- 41505 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) A61B 5/053 A61N 1/18-1/39

Claims (2)

(57) [Claims] 1. Acupoint electrodes corresponding to the acupoints on the left and right soles arranged on a weight measuring table, a pulse power source connected to these acupoint electrodes, and standing upright at the rear of the heel portion to electrically contact the left and right ankles. A heel plate with attached four terminal electrodes, a human body impedance measuring means for measuring the human body impedance through the four terminal electrodes, and a weight measurement for converting and outputting the weight measurement value measured by the weight measuring table into an electric signal. A value output means, a data input means for inputting sex, age, and height, a body fat percentage calculating means for calculating a body fat percentage based on these human body impedance, weight measurement value, and input data, and a calculated body fat percentage And a display unit for displaying the. 2. An elastic material having a soft inner side of the heel pad.
The body fat measurement device according to claim 1, wherein the body fat measurement device is formed of: