JP2707261B2 - Vibration therapy device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration treatment device that uses an ultrasonic motor as a vibration source and continuously switches the ultrasonic motor between forward and reverse rotations. [Background Art] Vibration stimulation of a part of the human body is effective for treating insomnia by shortening sleep latency and reducing pain due to stiff shoulders, muscle pain, lower back pain, arthritis, rheumatism and the like. Conventional vibration therapy devices provide an eccentric weight to the motor,
Vibration of the diaphragm via the cam mechanism predominates.However, this method has a large operating noise, consumes a large amount of power, and when the diaphragm is lowered by a load applied to the diaphragm, the cam mechanism The working range of the will be limited,
There were drawbacks such as the vibration device not operating as specified. Japanese Patent Application Laid-Open No. 60-209284 discloses a solution to these disadvantages.
JP-A-60-216870, JP-A-62-5359, and the like, a coil or a vibrating member is juxtaposed to a coil that generates a magnetic force, and a coil and a vibrating member are arranged in parallel by a charge / discharge circuit combining a thyristor and a capacitor. A device that intermittently supplies an alternating current to a coil and generates vibrations by using the attraction and repulsion of the coil has been proposed.In Japanese Patent Publication No. 61-10145, a signal from a variable frequency oscillator is amplified. There has been proposed an apparatus that vibrates sound generating means such as a speaker and vibrates a human body by the gas vibration. Among these devices, a vibration generating device combining a coil and a charging / discharging circuit has a drawback that power consumption is large,
In the method using a sound generating means such as a speaker as a vibration source, the vibration frequency can be easily changed, but an extremely large electric power is required to obtain a predetermined sound pressure on a diaphragm to be brought into contact with a human body. However, there was a drawback that it required "Problems to be Solved by the Invention" The present inventors recently attempted to solve the above-mentioned drawbacks of the conventional apparatus, and recently disclosed Nikkei Mechanical, February 28, 1983, pp. 44-48 or JP-A-58-148682. Focused on ultrasonic motors, which have been attracting attention due to such factors, we have conducted intensive research. "Means to solve the problem" As a result, the output shaft of the ultrasonic motor is continuously switched between forward and reverse to vibrate the output shaft, making the mechanical part of the power source extremely compact. It has been found that even if a load is applied to the output shaft of the ultrasonic motor, it does not hinder the generation of the vibration, and is suitable as a vibration source for a vibration treatment device. That is, the present invention provides a vibration therapy device that applies a vibration stimulus to a human body, in which a power source is formed by an ultrasonic motor, and a driving circuit that rotates the ultrasonic motor forward and reverse, and an output from the driving circuit. By providing a switching control circuit that continuously switches between those corresponding to the forward and reverse rotation of the ultrasonic motor, the vibration frequency of 10 to
A gist of the present invention is to provide a vibration therapy device characterized by applying a sine waveform or a pulse waveform of 200 Hz. Hereinafter, the details of the present invention will be described. As the ultrasonic motor, a traveling wave type motor and a standing wave type motor are known. Can be used in the invention. A traveling wave type ultrasonic motor generates a traveling wave on a stator by applying a high frequency voltage having a phase difference of about 90 ° to electrodes of a piezoelectric body divided into two poles, and receives the traveling wave to receive a rotating wave. Is designed to rotate. To generate vibration on the output shaft of an ultrasonic motor that originally rotates, for example, the high-frequency voltage applied to the ultrasonic motor is successively switched between a state with a + 90 ° phase difference and a state with a −90 ° phase difference. The vibration can be generated by switching the output shaft between forward and reverse. Repetition of high frequency voltage with + 90 ° phase difference and -90
In order to switch to a state where there is a phase difference, for example, a circuit for + 90 ° phase conversion and a circuit for −90 ° phase conversion are provided in these phase conversion circuits, and these phase conversion circuits can be switched by forward / reverse switching circuits. In addition, the forward / reverse switching circuit may be continuously switched at high speed by a pulse input from the oscillator. In addition, the phase conversion circuit is gradually switched to a sine wave shape by the phase control circuit without using the switching circuit,
AM receiver, FM receiver, video tape recorder, LD player, tape recorder, record player, CD player,
If an audible signal from a digital audio tape recorder or the like, a signal with a limited frequency band obtained by passing these signals through various filters, or a pulse signal generated by a pulse generation circuit such as a multivibrator is supplied, Different vibrations can be generated. In the above description, the traveling wave type ultrasonic motor was rotated forward and backward.However, in the case of the standing wave type ultrasonic motor, the drive circuit may output an output for rotating forward and an output for rotating backward. In addition, the switching of the driving circuit may be continuously controlled by the switching control circuit. In order to stimulate the human body by the vibration thus obtained, the vibration from the output shaft of the ultrasonic motor may be transmitted to a diaphragm that can hinder the human body or abut or attach to the human body. In order to vibrate the diaphragm supporting the human body,
For example, an arm is attached to the output shaft of an ultrasonic motor, the tip of the arm is connected to the diaphragm, and the diaphragm is vibrated by holding the tip of the arm via an elastic member so as not to be lowered by a load. It should be done. When an inertial body is attached to the output shaft of the ultrasonic motor and the cover of the inertial body is attached to the case of the ultrasonic motor via the vibration damping material, a large inertial force acts on the output shaft by the inertial body and the motor body The reaction force acts on the side, the vibration is amplified, and the cover can be vibrated. Furthermore, when a diaphragm is attached to the output shaft of the ultrasonic motor and the outer peripheral edge of the diaphragm is fixed to the holding plate attached to the case of the ultrasonic motor, the output is generated as the output shaft of the ultrasonic motor rotates forward and backward. Vibration occurs in the shaft,
Further, the vibration is amplified by the diaphragm attached to the output shaft, and the whole device can be vibrated. in this case,
Vibration is amplified because the direction of the rotational force acting on the central portion of the diaphragm is opposite to the direction of the rotational reaction force acting on the outer peripheral portion of the diaphragm fixed to the case side of the ultrasonic motor via the holding plate. Will be. A diaphragm such as a diaphragm and another diaphragm to be used in contact with or attached to a human body are communicated by a vibration or propagation means using a gas or liquid such as air, carbon dioxide, water, or hydraulic oil,
Alternatively, when the output shaft of the ultrasonic motor and the vibration plate are connected by vibration transmission means such as a wire, for example, a plurality of subjects at remote locations can be simultaneously stimulated by vibration. When the ultrasonic motor is used as the vibration source, the vibrating part does not travel as a whole, so for example, a blanket, a futon,
Cushion, mattress, waistcoat, Tanzen, belt, belt, hat, slippers, shoes, helmet, chair, bed, mat, seat, cushion, driver's seat, etc. Can stimulate vibration, relax muscles, improve blood circulation, reduce sleep latency and awakening, reduce pain and seizures due to muscle pain, lower back pain, arthritis, rheumatism, asthma, etc. Warm-up and massage before and after. In particular, for example, when the head is stimulated by a member used by being attached to a hat or a helmet-shaped head, the vibration effectively massages the scalp and has a remarkable effect on promoting hair growth and preventing hair loss. . At this time, if necessary,
301 (manufactured by Japan Photochromic Research Laboratories) and the like, the vibration stimulation and the hair growth agent act synergistically on the scalp to achieve an extremely high hair growth effect. Further, a diaphragm in the vibration device, for example, a sponge,
When it comes into contact with the subject's body via an elastic body such as rubber or foamed plastic, it is possible to more strongly vibrate the portion that comes into contact with the diaphragm. When using the vibration therapy device of the present invention, the vibration therapy device is first placed on, for example, a futon, a tatami, a chair, a bed, a floor or directly on the ground, and if necessary, a sheet or the like is placed thereon. The subject may be placed on the subject to stimulate the vibration, or the diaphragm may be stimulated by contacting or attaching the diaphragm to the affected part of the subject. The vibration frequency at this time is usually in the range of 10 to 200 Hertz, desirably in the range of 50 to 80 Hertz or 100 to 120 Hertz. Alternatively, vibration stimulation may be performed intermittently. When intermittent vibration stimulation is performed, it is convenient to use a timer in combination. Further, as described above, the vibration therapy device of the present invention can generate not only a simple sine waveform vibration waveform but also a pulse waveform vibration, so that the vibration waveform can be freely selected according to the purpose of use. There is a feature. Embodiment First, a drive circuit of a traveling wave type ultrasonic motor and a forward / reverse switching control circuit used in the vibration therapy device of the present invention will be described with reference to FIGS. The ultrasonic motor 1 has two electrodes 3 and 4
When a high-frequency voltage having a 90 ° phase difference (（wavelength difference) is applied to each of them, a traveling wave is generated in the stator to which the piezoelectric body 2 is attached. Although not shown, the rotor is pressed against the stator, the rotor receives a traveling wave generated in the stator, rotates, and further rotates the output shaft. As shown in FIG. 1, a circuit for driving an ultrasonic motor has one electrode 3 of a piezoelectric body connected to a high-frequency voltage source 5 having a frequency of, for example, 40 kHz via an amplifier circuit 6 and the other electrode 4 connected to an amplifier circuit 6. High-frequency voltage source 5 via the
Connected to. The phase conversion circuit 7 converts the high-frequency voltage into a + 90 ° phase and inputs it to the amplification circuit 6. The phase conversion circuit 7 also has an anti-phase conversion circuit for phase-shifting the high-frequency voltage from the high-frequency voltage source 5 by −90 °. When the −90 ° phase-converted high-frequency voltage is applied to the electrode 4, + 90 °超 The ultrasonic motor rotates in the direction opposite to the case where the phase has been converted. The phase conversion circuit 7 receives the signal from the forward / reverse switching circuit 8 and switches between + 90 ° phase conversion and −90 ° phase conversion. The forward / reverse switching circuit 8 includes:
A pulse signal (for example, an oscillation frequency of 65 Hz) is input from the oscillator 9, and the forward / reverse switching circuit 8 outputs a high-speed output signal corresponding to + 90 ° phase conversion and −90 ° phase conversion according to the pulse signal. Are switched continuously. As described above, the ultrasonic motor is continuously switched between the normal rotation and the reverse rotation at a high speed, so that a vibration corresponding to the frequency of the pulse is generated on the output shaft. Although the phase conversion of ± 90 ° is performed in the above description, the output value is not limited to the numerical value, and the output shaft similarly vibrates even if any phase conversion is performed. Further, by providing a forward / reverse switching circuit 8 and an oscillator 9 circuit, the output of the phase conversion circuit 7 is converted from a 90 ° phase conversion state to a 180 ° phase conversion state, for example, in a sin curve shape, so that vibration having a waveform different from the above can be obtained. The rotation can be switched between forward and reverse according to an arbitrary pulse signal. The phase conversion circuit 7 can be switched by the frequency adjustment circuit 10 to adjust the cycle.
The signal corresponding to the driving state of the ultrasonic motor 1 is input from the speed adjusting circuit 11. A more detailed circuit for driving the ultrasonic motor is as shown in FIG. A voltage of 6 V is input from the high-frequency voltage source 5 to the phase conversion circuit 7, the frequency adjustment circuit 10, and the speed adjustment circuit 11. From the phase conversion circuit 7, the + 90 ° phase-converted high-frequency voltage and the −90 ° phase-converted high-frequency voltage are alternately output, and are applied to the electrodes 3 and 4 of the ultrasonic motor via the amplifier circuit 6 to ± 90 °. A high frequency voltage of a sine wave having a phase difference and a high frequency voltage of a cos wave are applied. The speed adjustment circuit 11 receives a voltage change generated in accordance with the traveling wave of the ultrasonic motor, and
Can be adjusted. In the above description, the driving circuit and the switching control circuit of the traveling wave type ultrasonic motor were used. However, in the case of the standing wave type ultrasonic motor, the circuit configuration is different from that of the traveling wave type ultrasonic motor. The switching control circuit is configured to continuously switch the output from the drive circuit between one corresponding to normal rotation and one corresponding to reverse rotation. Next, three embodiments of the vibration device using the ultrasonic motor will be described. In the embodiment shown in FIG. 3, the ultrasonic motor is settled on the lower surface of a support 13 on which the ultrasonic motor is horizontally arranged, and the base end of the arm member 15 is attached to the output shaft 14 of the ultrasonic motor. The arm member 15 is disposed horizontally, and elastic members 16 and 16 ′ made of rubber, synthetic resin, etc.
Is mounted on the lower surface of the lower elastic member 16 on the support member 17 fixed to the support base 13 so that the tip of the arm member 15 does not fall too much. Elastic member 1 above arm 15
A diaphragm 18 is attached to the upper side of 6 'via a connecting member. The diaphragm 18 is formed of a metal plate on the lower surface side and a diaphragm made of an elastic material on the upper surface side, and the metal plate is smaller than the diaphragm, and only the outer peripheral portion of the diaphragm is supported on the support base 13.
Fixed to When the output shaft 14 of the ultrasonic motor 1 vibrates, the arm member
The diaphragm 18 vibrates via the elastic member 15 and the elastic member 16 '. Therefore, a vibration stimulus can be given by hindering the subject on the diaphragm 18 or by bringing the diaphragm 18 into contact with the subject. In addition,
When the patient is supported on the diaphragm 18, the diaphragm descends, and at the same time, the arm member 15 also slightly swings, and the output shaft of the ultrasonic motor
Although the ultrasonic motor 14 rotates, the ultrasonic motor vibrates in a predetermined manner even when it is rotated by a load because the rotor rotates by receiving the traveling wave of the stator. In the embodiment of the vibration device shown in FIG. 4, an inertia body 19 is attached to the output shaft 14 of the ultrasonic motor 1 driven in the same manner as the embodiment of FIG.
The cover 20 that covers the inertial body 19 is fixed to the case of the ultrasonic motor 1 via a vibration damper 21. The inertial body 19 is formed of, for example, a metal disk, and its central boss is screwed to the output shaft 14, and when the output shaft 14 rotates forward and reverse, inertial force acts on the output shaft 14 to generate vibration. It is designed to amplify. The vibration damping member 21 is formed of a hard rubber plate or a synthetic resin plate having elasticity, and facilitates transmission of the vibration of the ultrasonic motor 1 to the cover 20. The embodiment of the vibration device shown in FIGS. 5 and 6 has an output shaft 14 of the ultrasonic motor 1 driven in the same manner as the embodiment of FIG.
A diaphragm 23 is attached to a tip end of the device through an attachment 22. The diaphragm 23 is attached to the mounting bracket 22 by vulcanization, but may be attached by other adhesives or screwed.
A holding plate 24 is screwed to the case of the ultrasonic motor 1,
The outer peripheral portion of the holding plate 24 is bent, and the outer peripheral portion of the diaphragm 23 is fixed by being clamped. The diaphragm is made of an elastic material such as rubber or synthetic resin, and is provided with a number of notches 25a on the outer peripheral portion of the diaphragm 23 as shown in FIGS. 5 and 6, and the outer peripheral portion of the diaphragm 23 is fixed. Was adjusted. Next, four embodiments of the vibration treatment device using the vibration device shown in FIGS. 3 to 6 will be described. In the embodiment shown in FIG. 7, the vibration device is used for a mat type treatment device. The mat type treatment device is used by being laid on a tatami mat, a futon, a bed, a chair, a floor, and the like.The mat type treatment device is provided with a rectangular sponge piece 27, 27a which is superimposed inside and is foldable. Formed,
An elastic plate 26 harder than the sponge is provided on the upper surface. The upper sponge piece 27 is provided with a plurality of fitting holes, in each of which the vibration device of FIG. 4 or FIG. 5 is mounted. The vibration device 28 is connected to a drive device 29 including a drive circuit and a switching control circuit via a lead 30.
For example, vibration is performed at a frequency of 30 to 150 Hz. In the present embodiment, the vibration device 28 is housed in the sponge piece 27. May be removably fixed at an appropriate position. The mat type treatment device thus formed is, for example, a tatami mat,
Freely lay on futons, carpets, carpets, chairs, floors, ground, etc., to stimulate the local or whole body of the human body with vibration, relax muscles, improve blood circulation, shorten sleep wake-up and awaken It is very effective in reducing pain and seizures due to muscle pain, lower back pain, arthritis, rheumatism, etc. Further, when the subject is healthy, there is also an effect of promoting a reduction in sleep latency and inducing a good night's sleep and giving a sense of security. The embodiment shown in FIG. 8 is a vibration belt in which a plurality of the vibration devices 28 are housed in a band-shaped member 31, and is used by being wrapped around an arm or a leg of a human body. A support member 32 made of an elastic body is provided in a band-shaped member 31, and a vibration device 28 is supported in the support member. At both ends of the band-shaped member 31, fixing members 33 such as a magic tape are attached, and the vibrating device 28 is connected to the driving device 29 via the lead 30. This vibration belt freely wraps around the arms, legs, torso, etc. of the human body, for example, by stimulating with a frequency of 30 to 150 Hz, relaxes muscles, improves blood circulation,
It is effective in shortening sleep latency and awakening, reducing pain and seizures due to muscle aches, back pain, arthritis, rheumatism, etc. The vibration belt is also effective for warming up and massage before and after sports. The embodiment shown in FIG. 9 is a treatment device that vibrates the thorax and abdomen over the entire circumference. That is, an annular vibrating tube 34 having a hard wall on the outside and an elastic vibrating wall 35 on the inner periphery and a vibrating device 28
Are connected to each other by a flexible hose 37 via a pressure chamber 37a, and the inside thereof is filled with oil so that the vibration of the vibration plate in the vibration device 28 propagates the oil in the flexible hose to vibrate the elastic vibration wall 35. It was made. The flexible hose 37 may be filled with a liquid or gas other than oil. The ring-shaped vibrating tube 34 is divided into two arc-shaped portions, a hinge 36 is provided at a split position on one side, the other split side can be opened and closed with the hinge 36 as a fulcrum, and a locking member 38 is provided. Can be held. The structure is not limited to this structure. For example, a structure that expands and contracts according to the size of a human body and can be attached to a subject having a different physique in close contact is desirable. When an individual can be dedicated, such as in the treatment of asthma, the annular vibrating tube 34 is manufactured so as to increase the close contact density to the subject. When using the present vibration therapy device, first, an annular vibration tube 34 is attached to the chest or abdomen of the subject, placed on a couch or the like, and then vibrated by vibrating the vibration device 28 at a predetermined frequency to stimulate asthma. Seizures can be promptly reduced and stopped. Since the vibration frequency at this time varies somewhat from one subject to another, vibration stimulation is first performed at a standard frequency (for example, 65 Hz), and the best frequency may be selected without observing the state of the subject. The vibration therapy device is effective in reducing and stopping attacks caused by asthma, muscle pain in the chest and abdomen, recovering muscle fatigue, improving blood circulation, and reducing back pain. In addition, when the subject is a healthy body, there are also effects such as promoting sleep onset latency to induce a good night's sleep and giving mental and physical rest. FIG. 10 shows an embodiment of the vibration treatment device used by being attached to the head. A sponge member 27 having a recess corresponding to the shape of the head is mounted inside the helmet member 39. In the fitting hole 40 provided in the sponge member 27,
The vibrating device 28 is fitted with the vibrating plate facing downward, and the upper side of the vibrating device 28 is elastically supported by a spring 41 provided on the bottom wall of the helmet member 39. The driving device 29 of the vibration device is attached to the outer surface of the helmet member 39, and drives the vibration device 28, for example, at a frequency of 10 to 150 Hz.
It is made to vibrate. This vibration device is attached to the subject's head and stimulates the head by vibration to massage the scalp to improve blood circulation, shorten sleep latency and awake, reduce pain due to headache,
It is extremely effective in resting mind and body, promoting hair growth and preventing hair loss. Further, when a hair growth agent such as “Photosensitizer No. 301” is applied to the scalp in advance and stimulated by vibration, a higher hair growth effect can be achieved. Since this vibration therapy device is effective not only in reducing sleep latency but also in awakening, if worn by a driver while driving, it will be one bird and two birds to prevent drowsy driving and take safety measures. Furthermore, when the present vibration therapy device is vibrated at a frequency of about 10 Hz, it is also effective in converting brain waves into alpha waves. “Effect of the Invention” Since the vibration therapy device of the present invention uses an ultrasonic motor as a vibration source, an effective vibration stimulus can be given to a subject even with low power. Further, since the vibration treatment device of the present invention uses an ultrasonic motor as a vibration source, the vibration is not interrupted even when the load of the patient is applied. Furthermore, since the vibration therapy device of the present invention uses the ultrasonic motor as the vibration source, the subject can be stimulated by the vibration of the pulse waveform. Since the vibration treatment device of the present invention uses an ultrasonic motor as a vibration source, the vibration device portion does not travel, so
For example, blanket, futon, cushion, mattress, waistcoat,
Tanzen, belt, obi, hat, slippers, shoes, helmet,
Chairs, beds, mats, seats, cushions, driver's seats, etc. can be freely attached to variously shaped support members or mounting members to stimulate the local or whole body of the human body with vibration, relax muscles and circulate blood. Good for shortening sleep latency and awakening, reducing pain and seizures due to muscle pain, lower back pain, arthritis, rheumatism, asthma, etc. Shows significant effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a circuit for driving an ultrasonic motor in forward and reverse rotations, FIG. 2 is a circuit diagram showing the block diagram of FIG. 1 in detail, and FIGS. Is a cross-sectional view of a different vibration device, FIG. 6 is a plan view showing a cross-sectional position AA line in FIG. 5, FIG. 7 is a partially broken side view of a mat type vibration treatment device, and FIG. Fig. 9 is a schematic perspective view of a thoracoabdominal vibration treatment device, and Fig. 10 is a partially broken side view of a head vibration treatment device. 1; ultrasonic motor, 5; high-frequency voltage source 7; phase conversion circuit, 8; forward / reverse switching circuit 9; oscillator, 15; arm 16; elastic member, 18; diaphragm 19; inertial body, 20; cover 21; Damping material, 23; diaphragm 24; holding plate, 26; mat member 27; sponge member, 28; vibrating device 29; driving device, 31; band member 34; annular vibrating tube, 39; helmet member

Claims (1)

(57) [Claims] In a vibration therapy device designed to give vibration stimulation to the human body, a power source is formed by an ultrasonic motor,
By providing a drive circuit for rotating the ultrasonic motor forward and reverse, and a switching control circuit for continuously switching the output from the drive circuit to one corresponding to the forward and reverse rotation of the ultrasonic motor, the vibration frequency 10 A vibration treatment device wherein a vibration having a sinusoidal waveform or a pulse waveform of from 200 Hz to 200 Hz is applied. 2. The vibration treatment device according to claim 1, wherein the ultrasonic motor is a traveling wave type ultrasonic motor. 3. One of the electrodes of the ultrasonic motor divided into two poles is connected to a high-frequency voltage source without changing the phase, and the other is connected to a high-frequency voltage source via a phase conversion circuit so that the motor can be driven in positive rotation. A driving circuit is formed by providing a reverse phase conversion circuit for performing phase conversion in the reverse direction to enable the ultrasonic motor to be driven to rotate in the reverse direction. 2. The vibration treatment device according to claim 1, wherein a switching control circuit is formed by enabling continuous switching to a reverse rotation state, and the ultrasonic motor is vibrated by rotating the ultrasonic motor forward and reverse. 4. 4. The vibration treatment device according to claim 3, wherein a pulse signal from a transmitter can be input to the switching circuit, and the phase conversion circuit can be continuously switched between a normal rotation state and a reverse rotation state. 5. Claims: A base end of an arm member is fixed to an output shaft of an ultrasonic motor, a diaphragm is attached to a distal end of the arm member, and a distal end portion of the arm member is held via an elastic member. 3. The vibration treatment device according to claim 2. 6. 3. The vibration treatment according to claim 2, wherein an inertial body is attached to an output shaft of the ultrasonic motor, and a cover covering the inertial body is attached to a case of the ultrasonic motor via a vibration damping material. vessel. 7. 3. The vibration treatment device according to claim 2, wherein a diaphragm is attached to an output shaft of the ultrasonic motor, and an outer peripheral edge of the diaphragm is fixed to a holding plate attached to a case of the ultrasonic motor. 8. A vibration device for vibrating an output shaft of an ultrasonic motor, provided in a mat, a belt, a helmet, or the like, and applies a vibration stimulus to a human body via an elastic body. Second, third, fourth, fifth
Item 8. The vibration treatment device according to any one of Items 6, 6 and 7. 9. 2. The method according to claim 1, wherein a vibration device configured to vibrate the output shaft of the ultrasonic motor communicates with the diaphragm via a gas or liquid-filled conduit.
The vibration treatment device according to any one of the second, third, fourth, fifth, sixth, and seventh items.