JPH10127593A - Body fat meter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the accuracy of impedance measurement to obtain a more accurate body fat index. SOLUTION: This body fat meter is equipped with a body weight measuring part and an impedance measuring part 3 to measure partial impedance of a human body as well as a calculating part to calculate body fat indices such as a body fat rate, body fat weight, etc., and a display to display the body weight and the body fat indices. The impedance measuring part 3 is formed as a matter to bring an impedance measuring electrode 30 into contact with an instep or a side face of a foot laid on a body weight measuring face 10 of a body weight measuring part. Since the instep or the side part of a foot has effect of sweating smaller than the bottom face of a foot and has low possibility of being wet and, even if it is wet, moisture can easily be wiped off, to the impedance measuring accuracy can be raised.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body fat meter capable of measuring a body fat index such as a body fat percentage value and a body fat weight together with a body weight.

[0002]

2. Description of the Related Art A body weight measuring unit and an impedance measuring unit for measuring a partial impedance of a body are provided for measuring a body fat index such as a body fat percentage and a body fat weight. Japanese Patent Publication No. 5-4905 is provided with a calculation unit that calculates a body fat index such as a body fat percentage value and a body fat weight based on parameters.
No. 0 publication. The body fat meter based on the correlation between the amount of fat in the body and the impedance value,
The body fat weight is calculated based on other parameters such as gender, age, height, weight, and impedance value, and displayed on the display unit.

In the above publication, an electrode for impedance measurement is arranged on the surface of a weight measuring section on which a subject is placed for measuring the weight, and the subject is placed on the weight measuring section. , Weight and impedance are measured simultaneously. The other parameters are input from an input unit for inputting the data.

[0004]

In this case, as described above, the impedance measurement is performed simultaneously with the measurement of the weight simply by placing on the weight measurement section so as to touch the electrode for impedance measurement, which requires time and effort. Although the body fat index can be measured without the need, there are the following problems.

[0005] That is, it is a preferable state to obtain a correct measurement value when the skin surface to be brought into contact with the electrode for impedance measurement is in a preferable state to obtain a correct measurement value. Since the skin surface to be used is the sole of the foot, most households use it after taking a bath. In this case, the sole that touches the electrode for impedance measurement is likely to be wet when the bath is rising, and even if it is not the bath, it is likely to be wet due to sweating. If the sole of the foot is wet or the amount of water in the living body is large, the bioimpedance measured by bringing the electrode into contact with the sole of the foot will also fluctuate. The measurement accuracy of the fat index is low.

[0006] The present invention has been made in view of the above points, and an object of the present invention is to provide a body fat meter capable of obtaining a more accurate body fat index because the impedance measurement accuracy can be kept high. To offer.

[0007]

According to the present invention, there is provided a body weight measuring section and an impedance measuring section for measuring a partial impedance of a body, and the body fat is measured based on the measured body weight, impedance and other parameters. In a body fat meter including a calculation unit for calculating a body fat index such as a rate value and a body fat weight, and a display unit for displaying a body weight and a body fat index, the impedance measurement unit is mounted on a body weight measurement surface in the body weight measurement unit. It is characterized in that it is formed so that an impedance measuring electrode is brought into contact with the instep or side of the foot.

[0008] Compared with the sole of the foot, the instep and the side of the foot are less affected by perspiration and the possibility of getting wet is low, and even if it gets wet, it is easy to wipe off. Is what you can do. Such an impedance measurement unit may be provided with a support member positioned on the weight measurement surface with an interval therebetween and disposed on the lower surface of the support member. By being movable in a direction in which the distance between the weight measurement surface and the weight measurement surface is variable, the impedance measurement unit can be provided without obstructing the operation of placing a foot on the weight measurement surface.

The impedance measuring section provided with the pair of electrodes for impedance measurement is provided rotatably, or both electrodes for measurement are individually slidable up and down, so that the pair of impedance measuring electrodes The electrode for impedance measurement can be reliably contacted.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of an embodiment of the present invention will be described. The body fat scale of the illustrated example is a body 1 configured as a simple type weight scale having an upper surface serving as a weight measuring surface 10.
And an impedance measuring unit 3 having two sets of impedance measuring electrodes 30, 30 each of which is a set via a support member 2. In the configuration shown in FIGS. The L-shaped support members 2 and 2 are rotatably connected to the distal end side of the body 1, and the impedance measuring units 3 are arranged on the lower surface side of each support member 2, respectively. Each of the impedance measuring units 3 provided with the two impedance measuring electrodes 30 arranged in the front and rear directions is attached to the support member 2 so as to be freely rotatable in the front and rear direction.

In the figure, reference numeral 4 denotes a digital display unit provided on the upper surface of the support member 2, and reference numeral 5 denotes a condition input unit also provided on the upper surface of the support member 2. Input from the input unit 5. In the illustrated body fat meter configured as described above, the weight is measured by being placed on the weight measurement surface 10, the weight is displayed on the display unit 4, and the support member 2 is rotated to turn the impedance measurement unit 3. When the electrode 30 is brought into contact with the instep, the impedance value is measured. When the above parameters are input by the condition input unit 5 and data such as the measured weight value and the impedance value measured in the impedance measurement mode are aligned, the body fat meter can calculate the body fat percentage or the body fat weight. Is calculated, and the result is displayed on the display unit 4.

At this time, since the support member 2 is rotatable with respect to the body 1, the support member 2 is raised when the foot is placed on the weight measurement surface 10, so that the support member 2 and the impedance When the measuring unit 3 does not get in the way and the support member 2 is turned forward for impedance measurement, the two electrodes 30
Since the impedance measuring units 3 provided with are individually rotatably hung on the support member 2, the two electrodes 30, 30 are reliably brought into contact with the human body regardless of individual differences in the angle of the instep. Things.

The support member 2 may be slidable up and down as shown in FIG. The foot is placed on the weight measurement surface 10 with the support member 2 slid upward, and then the support member 2 is lowered to bring the electrodes 30, 30 of the impedance measuring section 3 into contact with the instep. As shown in FIG. 4, the impedance measuring section 3 is configured such that both the measuring electrodes 30, 30 can be individually slid up and down with respect to the support member 2, and is preferably urged downward by a spring. Is also good. Also in this case, both electrodes 3
It is possible to reliably bring both 0 and 30 into contact with the instep.

In the apparatus shown in FIG. 1, a support member 2 is provided for each impedance measuring section 3 to prepare for the case where the heights of the insteps of the right and left feet are different. If the movable range is large, two impedance measuring units 3 and 3 for the left and right feet may be provided on the lower surface of the single support member 2 as shown in FIG.

The support member 2 does not necessarily have to be movable. This is because the feet of the toes are thinner, so that putting the feet between the impedance measuring unit 3 and the weight measuring surface 10 does not involve much difficulty. Further, when the support member 2 is movable, it is not manually moved,
You may make it operable electrically. For example, when the foot is not placed on the weight measurement surface 10, the impedance measurement unit 3 is kept in a state of being retracted from the weight measurement surface 10, and when the foot is placed on the weight measurement surface 10, the support member 2 moves to measure the impedance. When the electrode 30 of the part 3 is brought into contact with the instep, and the impedance measurement is completed,
I will try to evacuate again. The labor required for measuring body fat can be reduced.

In each of the above examples, the impedance is measured by bringing the electrode 30 into contact with the instep of the foot. However, the electrode 30 may be brought into contact with the side of the foot.

[0017]

As described above, according to the present invention, the impedance measuring section is formed so that the impedance measuring electrode is brought into contact with the instep or the side of the foot placed on the weight measuring surface in the weight measuring section. The instep and side of the foot are less affected by perspiration than the sole and have a low possibility of getting wet, and even if wet, they can be easily wiped off. Therefore, the impedance measurement accuracy can be increased, and the measurement accuracy of the body fat index can be increased accordingly.

A supporting member is provided on the weight measuring surface with an interval therebetween, and an impedance measuring section is disposed on the lower surface of the supporting member. If it is movable in a direction in which the distance between the surface and the surface is variable, the impedance measuring unit can be provided in a state where it does not hinder the operation of placing the foot on the weight measurement surface, and the usability is improved.

The impedance measuring section provided with a pair of electrodes for impedance measurement is provided rotatably, or both electrodes for measurement are individually slidable up and down, so that the curve of the surface of the foot can be improved. Irrespective of individual differences in inclination, the pair of electrodes for impedance measurement can be reliably brought into contact with the foot.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a side view of another example of the above.

FIG. 4 is a side view of still another example of the above.

FIG. 5 is a perspective view of another example of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Instrument body 2 Support member 3 Impedance measuring part 10 Weight measuring surface 30 Electrode

Claims (4)

[Claims] 1. A weight measuring section and an impedance measuring section for measuring a partial impedance of a body,
A calculation unit for calculating a body fat index such as a body fat percentage value and a body fat weight based on the measured body weight, impedance and other parameters, and a body fat meter including a display unit for displaying the body weight and the body fat index The body fat meter according to claim 1, wherein the impedance measuring unit is formed so that an impedance measuring electrode is brought into contact with the instep or the side of the foot placed on the weight measuring surface of the weight measuring unit. And a support member positioned on the weight measurement surface with an interval therebetween, wherein the impedance measurement unit is disposed on a lower surface of the support member, and the support member measures the impedance with respect to the weight measurement unit. The body fat meter according to claim 1, wherein the body fat meter is movable in a direction in which a distance between the part and the weight measurement surface is variable. 3. The body fat meter according to claim 1, wherein the impedance measuring section includes a pair of impedance measuring electrodes and is rotatably provided. 4. The body fat meter according to claim 1, wherein the impedance measurement section includes a pair of electrodes for impedance measurement, and both electrodes for measurement are individually slidably provided up and down.