JPS58138455A - Massager - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for applying vibration to human body tissue by applying vibration using a vibration exciter.
An acceleration sensor and a pressure t sensor are installed on an excitation table that applies a pressure t, and the frequency of an oscillator that excites the exciter is changed to the resonance of the mechanical impedance of the human tissue obtained from the output of the acceleration sensor and the pressure t:/. This invention relates to a pine surge machine characterized in that it detects the same wave at'' and strikes the oscillator to oscillate at a resonant frequency.

The purpose of the present invention is to pressurize and vibrate human tissue at a resonant frequency to improve the pine surge effect, reduce pressure g1 on the skin, and reduce the mechanical strength of the vibrator. The goal is to make it as compact as possible.

Generally, mechanical impedance is expressed as the ratio of velocity* on the surface of the object to be measured and force i, that is, i/v. FIG. 1 shows the frequency characteristics of a living body's mechanical impedance 1 to 1, which has a monotonous resonance characteristic and a resonance-like trace at fo. Figure 2) is the equivalent circuit of the human tissue seen in Figure 1, with mechanical resistance R.
It is composed of 1 mass m and stiffness S, and at resonance (f
=W), the t-i equivalent circuit consists of only the mechanical resistance R as shown in FIG. 2(b).

Therefore, at the time of resonance, the speed applied by the exciter is at its maximum and is applied only to the mechanical resistance R, so that the excitation energy f applied to the human tissue is transmitted most efficiently.

The conventional pine surge machine uses an exciter ill as shown in Figure 3.
An excitation current was applied from an oscillator (not shown) to the excitation table (2ik) using electromagnetic force, causing vibrations in the human tissue (3). In this case, the vibration frequency of the injector 0 was Since #i is unrelated to the resonance frequency of the mechanical impedance of human body 1 + group m + 31, it has the drawback that the transmission efficiency of the excitation energy 1,000 given to human body group m13) is poor and the pine surge effect is poor. was.

The present invention I41-II/i has been made in view of the above points, and will be explained in detail below using Example F.

In Fig. 4, (1) is a vibration exciter, and vibration table (2) is a vibration exciter.
) to give vibration to the human body set II +31. (4) is an acceleration sensor, +6) is a pressure sensor,
Each is provided on the vibration table (2), and the vibration table (2
), the acceleration voltage λ of the vibration table (2) and the human tissue (
The pressure applied in the same way as in 8) is detected as a force.

(6) and 17+ are preamplifiers, each with an acceleration voltage λ
The amplified acceleration voltage ^ is integrated by an initiator (81) to obtain the speed voltage V. (
Reference numeral 91 is a static eliminator, which divides the force dragon pressure F by the speed voltage V and borrows the mechanical impedance 2iI-. The output is an oscillator, which outputs a sine wave, is amplified by the transducer H, and enters the exciter (1) to switch the excitation mode, compare the measured value with the memory record, input/output, and start. , stopped - board 05) input, 7-key display on the display section and oscillation I! This is used to specify the oscillation frequency for the scream.

When you start it now, start it with the start switch of Cow Board 1@, and display it on the display (number 1). , t-sweep the oscillator over a constant frequency range, i.e. vary its frequency, and the output of the divider (9), i.e.
Measure the mechanical impedance for each sampler (141
If it is smaller than the content of the meter, the values of the frequency and mechanical impedance at that time are stored in memory 04.
Enter. After the sweep is completed, the frequency stored in the memory (+41) becomes the resonant same wave number.Furthermore, in the excitation mode, the excitation level is displayed on the display, and the timer (1'
4t-t and vibrate with one wave of resonance for a certain period of time to generate pine surge. In addition, in the loop, the timer 〇 bird interrupts K, and the resonant wave number measurement tF and excitation t-do are repeated. When stopping, press the stop switch on the cow board (1 x 1) and display on the display.

As shown in Section H, with the present invention, acid is applied to human tissue when it is excited by a vibrator! An acceleration sensor and a pressure sensor are installed on an excitation table that gives fI, and the mechanical impedance of the human tissue is obtained from the output of the acceleration sensor and the pressure t:, I by changing the 18 wave amplitude of the oscillator that excites the exciter. By detecting the resonant frequency sound and oscillating the oscillation at the resonant frequency, human tissue can be pressurized and vibrated at the resonance II'4 wave number, improving the pine surge effect and reducing the feeling of pressure on the skin. Moreover, it has the effect of reducing the vibrational strength of the vibrator and allowing it to be made smaller.

[Brief explanation of the drawing]

Figure 1 is a frequency characteristic diagram of the mechanical impedance of a living body, Figures 2 (a) and (b) are equivalent circuit diagrams of the same as above, Figure 3 is a front view of a conventional Ma-Shisage machine, and Figure 4 is a book. FIG. 1 is a configuration diagram of an embodiment of the invention. (1)・Exciter, +21-excitation table, (3)...
Human tissue (4) "Accelerated wind sensor, (6)...pressure sensor, scream...oscillator. Agent: Patent attorney Ishi 1) Chief 7th procedural amendment (voluntary) July 12, 1980 To the Commissioner of the Japan Patent Office 1 , Indication of the case 1981 holding weight ffweL No. 23016 2, Name of the invention MatsuSurge machine 3, Relationship to the case by the person making the amendment Person of the patent applicant Location 1048 Kadoma, Kadoma City, Osaka Prefecture Name (583) Matsushita Electric Works Co., Ltd. Company representative: Iku Kobayashi 4, agent postal code: 530 5, date of amendment order: 6, number of inventions increased by amendment

Claims (1)

[Claims] ill An acceleration sensor and a pressure t-sensor are installed on a vibration table that is excited by a vibration exciter to give a vibration vJ to human tissue, and the vibration Sa! 1i by changing the frequency of the oscillator that excites
A pine surgery machine characterized in that the resonant frequency of mechanical impedance of human tissue obtained from the outputs of an acceleration t sensor and a pressure cassette sensor is detected, and the oscillator is caused to oscillate at the resonant frequency.