JPH0444766A - Massaging machine - Google Patents

Abstract

PURPOSE:To obtain a massaging machine never tiring a user by providing a characteristic control means for conducting the control in such a manner that changes of characteristics such as rotating speed and amplitude contained in the movement of a working body within a determined time form an aggregation of random patterns. CONSTITUTION:A frequency control means M1 controls a driving means M2 in such a manner that changes of characteristics such as rotating speed and vibration contained in the movement within a determined time of a massaging working body M3 such as crumpling balls and vibrating plates form an aggregation of random patterns. Thus, the movement of the massaging working body changing on standing is difficult to predict. Further, if, in this pattern, the size of each frequency component contained in the movement of the working body M3 within the determined time is nearly reversely proportional to the frequency, the movement of the working body M3 is not only difficult to predict, but also similar to phenomena in the natural field and becomes a natural one. Thus, it is never caused that a user is tired of the vibration of the working body and cuts the massage within a short time.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a pine massage machine, and more particularly to a pine massage machine that changes the motion characteristics of a working body such as a massaging ball or a diaphragm over time. (Conventional technology) To relieve stiff shoulders, back pain, etc., and eliminate fatigue,
Various types of pine surge machines have been used in the past.For example, pine surge machines that rotate rollers, those that eccentrically rotate a head called a massaging ball, and those that vibrate a diaphragm or spherical head with protrusions on the surface. Alternatively, there are methods in which a low-frequency vibrator is placed in close contact with the human body and pine surge is performed using low-frequency vibrations. In addition, among such pine surge machines, one has been proposed in which the magnitude of vibration, direction of rotation, etc. are changed at predetermined intervals so that the vibrations and rotations applied to the human body do not become monotonous. [Problem to be Solved by the Invention 1] However, even if the magnitude of the vibration and the direction of rotation are varied at predetermined intervals, there is a problem that the user of the pine serge machine will eventually get used to the movement and get tired of pine surge. Ta. Therefore, with a pine serge machine that operates in a monotonous manner, the comfort provided by pine surge does not last long, and the user tends to finish pine surge in a short period of time, making it impossible to fully utilize the pine surge function. The present invention has been made to solve the above-mentioned problems and to provide a pine surge machine that users will never get tired of. The configuration of the present invention that achieves this object will be described below.

[Means to solve the problem]

As illustrated in FIG. 1, the pine surge machine of the present invention includes a pine surge effecting body M1 such as a massaging ball or a vibration plate, and a driving means M2 for driving the pine surge effecting body M1.
A pine surge machine that changes the characteristics of the motion of the acting body M1 over time, the driving means so that changes in characteristics such as rotation speed and amplitude included in the motion of the effecting body M1 within a predetermined time are a set of random patterns. The gist is that a characteristic control means M3 for controlling M2 is provided. Further, as a configuration for generating one of such patterns, the characteristic control means M3 is configured to generate a butterfly pattern in which the magnitude of each frequency component included in the motion of the acting body within a predetermined time is approximately inversely proportional to the frequency. It is also preferable to include a pattern generating means M4 for generating a pattern.

[Effect]

The pine surge machine of the present invention having the above-mentioned configuration controls the number of rotations included in the movement of the pine surge effecting body Ml such as a massaging ball or a vibration plate within a predetermined time by the frequency control means M3.
The driving means M2 is controlled so that changes in characteristics such as amplitude form a set of random patterns. Therefore, the movement of the pine surge agent as it changes over time becomes unpredictable. Furthermore, this pattern is generated by pattern generation means M
4, if the magnitude of each frequency component included in the movement of the acting body M1 within a predetermined time is approximately inversely proportional to the frequency, then the movement of the acting body M1 is not only predictable but also a natural phenomenon. It becomes a natural thing similar to. (Example) In order to further clarify the structure and operation of the present invention described above, preferred embodiments of the pine surge machine of the present invention will be described below. FIG. 2 is a schematic perspective view showing the external appearance of a pine surge machine which is an embodiment of the present invention, and FIG. 3 is a partially cutaway side view thereof. As shown in the figure, this pine surge machine includes a synthetic resin case 1 formed into a substantially flat rectangular shape. A handle 2 is integrally molded on the left and right sides of this case, and a diaphragm 3 as a pine surge effecting body is arranged on the surface of the case 1, and an operation panel is located on the right front side of the surface. 4 is provided. As shown in FIG. 3, the case 1 is divided into a case main body 1a forming the bottom of the case 1 and a case main body 1b forming the upper surface from the side to facilitate assembly. Legs 5 are retractably provided in the case body 1a, and when the pine surge machine is placed on the floor or the like at an angle, the legs 5 can be pulled out and used as shown in FIG. The diaphragm 3 is made of synthetic resin and has a substantially rectangular shape, and a plurality of substantially hemispherical protrusions 7 are provided at approximately equal intervals on its surface, that is, the contact surface 6 on which the user's body such as feet is placed. It is being The contact surface 6 has its front side bent inward to form an inclined surface 6a, and two protrusions 8 having a diameter larger than that of the protrusion 7 are formed on a ridgeline 6b formed by the inclined surface 6a. The diaphragm 3 has elastic struts 10 near each corner thereof.
It is connected to the case main body 1a by. The elastic support 10 is made of an elastic body such as rubber and has a cylindrical shape, and both ends are fixed to the diaphragm 3 and the case body 1a, respectively. Therefore, the diaphragm 3 can swing within the deformable range of the elastic struts 10. Next, a structure corresponding to a driving means for vibrating the diaphragm 3 will be briefly described. A DC motor 12 is housed in the case 1 , and its output shaft 14 is connected to approximately the center of the diaphragm 3 via an eccentric bearing 15 . As shown in FIG. 4, the motor 12 and the eccentric bearing 15 are connected by fitting the bearing 16 and the sleeve 2o to the output shaft 14, and then connecting the male screw 18 formed at the tip of the output shaft 14 to the crankshaft 28 of the eccentric bearing 15. It is assembled by screwing into the female screw 36 provided in the. Note that the output shaft 14 is connected to the crankshaft 28.
When the motor is screwed together, a fan 22 for cooling the motor is integrally assembled. That is, the output shaft 14 is connected to the crankshaft 28 by fitting the opening 26 provided at the base of the fan 22 into the boss 34 having an oval cross section provided on the crankshaft 28.
It is screwed together. As a result, as the motor 12 rotates, the fan 22 also rotates, cooling the motor 12 with air. The female screw 36 of the eccentric bearing 15 is located at a position offset by several millimeters when viewed from the axis of the crankshaft 28, and
The axial center of the main body portion 30 protruding from the opposite side of the female screw 36 is shifted from the axial center of the female screw 36. Therefore, when the motor 12 rotates, the main body 30 of the crankshaft 28 rotates in an eccentric state, and the bearing 38 of the eccentric bearing 15 also moves in the same manner. Since the bearing 38 of the eccentric bearing 15 is fitted into the fitting portion 43 of the diaphragm 3 as shown in FIG. 3, this movement causes the diaphragm 3 to move against the elastic support of the elastic struts 10. , it will oscillate. Note that a counterweight 2 is attached to one end of the fan 22.
4 is installed. The weight of this counterweight 24 is adjusted to a position and weight that cancels out the reaction caused by the swinging of the diaphragm 3. Therefore, the vibration of the entire pine surge machine caused by the swinging of the diaphragm 3 is suppressed, and the pine surge effect is fully exerted. Furthermore, the center of gravity of the diaphragm 3 and the centers of the counterweight 24 and the eccentric bearing 15 are located at a distance from each other, so that the points of application of force in the axial direction when the diaphragm 3 swings are almost the same. Therefore, the output shaft 14 does not deviate in the axial direction. Next, the configuration of the electric circuit of the pine surge machine of this embodiment will be explained. As shown in FIG. 5, this pine surge machine that operates using a commercial AC power source (AClooV) includes a low voltage circuit 50 that generates a low voltage for control from the AC power source, a parallel input port, and an output port. A 4-bit CPU 51 with a built-in board, a D/A converter 53 that converts the parallel output of the CPU 51 into an analog value, and a D/A
A phase control circuit 55 that receives the output signal of the converter 53 and performs AC phase control, and a stack 57 that rectifies the output of the phase control circuit 55 and supplies DC power to the motor 12 are incorporated. The operation panel 4 is also provided with a power switch 61 connected to the power line, a mode selector switch 63 connected to the parallel input port of the CPU 51, and a speed control switch 65 also connected to the parallel input port. . The mode changeover switch 63 is used to change the vibration mode of the diaphragm 3 to "auto" or "manual", and the speed control switch 65 is used to change the vibration characteristics of the diaphragm 3 to "strong".
It is set in four levels: ``medium,''``weak,'' and ``soft.'' The CPU 51 has a built-in ROM in which the operating program and vibration time series data are written in advance, a RAM for temporarily storing data, etc., and a timer and a random number generator. The characteristics of vibration are controlled. Next, this process executed by the CPU 51 will be explained with reference to the flowchart shown in FIG. When the power is turned on, the CPU 51 repeatedly executes the diaphragm control routine shown in FIG. Immediately after turning on the power,
Or, if it is immediately after the start of a pine surge cycle in which one interval is approximately 2.5 minutes (step 100), the CPU 5
A process is performed in which a random number is read from a random number generator built in the controller 1, and the starting address in the ROM from which control data is to be read is determined using this random number (step 11o). The ROM stores time-series data that controls the vibration of the diaphragm 3, which will be explained below. By determining the starting address from which this data is read out using random numbers, the state of vibration during one interval is the same every time. This is to prevent it from becoming. Of course, it is not always easy for humans to predict the next state by remembering changes that occur every few minutes.
If one period is several minutes or more, the vibration pattern within the period may be the same each time. Next, the setting S of the speed control switch 65 is read (step 120), and then the state of the mode changeover switch 63 is read (step 130).
, the state of the mode changeover switch 63 is determined (step 140), and if the setting is "auto", then the time Δ
Determine whether or not the period has elapsed (step 150).
. The time Δt determines the timing for controlling the motor 12, and is set to several seconds in this embodiment. If the time Δ°C has not elapsed, the process proceeds to step 100.
Return to and repeat the process from determining the start of the cycle, while
If it is determined that the time Δ℃ has elapsed (step 1
50), the next output data R is read from the ROM in the CPU 51 (step 160), and the target rotation speed N is calculated from this data R and the setting S of the speed control switch 65 (step 170). ). According to the target rotation speed N obtained in this way, D/
Data is output to the phase control circuit 55 via the A converter 53 (step 180). As a result, the output voltage of the stack 57 is controlled, the rotation speed of the DC motor 12 is controlled to the value N, and the diaphragm 3 vibrates at a frequency determined by this rotation speed N. As a result, when the mode changeover switch 'f-63 is set to "auto", the vibration of the diaphragm 3 changes over time in accordance with the control data stored in the ROM. Regarding the changes in this vibration over time,
6, which will be described in detail later. On the other hand, if the mode selector switch 63 is set to "manual" (step 140), the motor 12 is controlled by the rotation speed N according to the setting S of the speed control switch 65 ( Step 200). As a result, in the "manual" mode, the diaphragm 3 vibrates at a constant frequency set by the speed control switch 65. After controlling the rotation speed of the motor 12 (step 180 or step 200), the process returns to step 100 and repeats the above-described processing (steps 100 to 200). As mentioned above, when the mode selector switch 63 is set to "auto", the motor 12 that drives the diaphragm 3 has one cycle T of approximately 2.5 minutes, and the motor 12 drives the data stored in the ROM in advance. It is sequentially driven at the rotation speed corresponding to the rotation speed. FIG. 7(A) illustrates a change in the rotational speed N over time. If we consider the change in the rotational speed N as a wave with a period T, then the wave y is
Multiple sine waves (fundamental frequency ωL, second harmonic 2ωt, third harmonic
Set of harmonics 3ωt, ... nth TA wave nωt) y = A
O+Ai 5in (cz+t+φ1]+A 2 ・5
in(2ωt+φ2)+A3・5in(3ωt+φ3)
It can be expressed as +--.+A n -5in (nωt+φn) (Fourier series). In this embodiment, the coefficient Ai of each frequency component is predetermined to become smaller as the frequency (10° C.) becomes higher. That is, An=k-AO/n (n≧2). As a result, if we look at the relationship between the frequency of the fluctuation in the rotational speed of the motor 12 and the magnitude of the change in the rotational speed, we can see that the frequency of the fluctuation in the rotational speed is high (I see, the rotational speed The magnitude of the change decreases in inverse proportion to the frequency. Figure 7 (B) shows the speed control roll switch 65.
The characteristics when the setting is "weak" are shown in Figure 7 (C
) also shows the characteristics in the case of F medium. In both figures, the solid lines Jl and J2 are graphs plotting the measured values of the changes in rotational speed in each frequency component, and the dashed-dotted lines Fl and F2 are graphs of 1/f (f is frequency). be. According to the present embodiment described above, when the mode changeover switch 63 is set to "auto", the diaphragm 3 changes the frequency of the rotational speed fluctuation for 2.5 minutes per cycle. It is driven with such a characteristic that the higher the rotation speed, the smaller the change in rotation speed becomes. In other words, there is no clear repetition in the changes in frequency, and they are natural, similar to the characteristics of changes in wind and waves in the natural world. For this reason,
The vibration of the pine surge machine is extremely comfortable, and the person who uses it will never get tired of the pine surge caused by the vibration of the diaphragm 3. Therefore, the pine surge effect can be fully brought out. In this example, random numbers are used to start vibration from a different initial value each time within the period of vibration change, which is approximately 2.5 minutes per cycle, so you will never get tired of layer vibration. In this embodiment, as shown in FIGS. 7(B) and 7(C), the more the speed control switch 65 is set to "1", the larger the change in the rotational speed in the low frequency region becomes. Therefore, even if the setting is set to "weak" or "soft", the comfort of the pine surge will not be impaired.Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments in any way. For example, it is possible to adopt a configuration in which the movement of the diaphragm or the massaging balls is controlled by random numbers generated by a random number generator.
The amplitude of the vibration is variable, and the magnitude of the change in amplitude is l
/ f control, a configuration that controls the rotation speed or rotation size of the massaging ball with 17f, a configuration that detects the force that actually presses on the human body and controls this change, or a configuration that controls the force that actually presses on the human body. Of course, the present invention can be implemented in various ways without departing from the spirit of the present invention, such as a configuration in which the strength of low-frequency vibration of the low-frequency vibrator is similarly controlled. Note that the relationship between the frequency and the magnitude of change is strictly 1
/f (but there is no problem as long as the relationship is such that the change decreases as the frequency increases. Effect 1 of the Invention As detailed above, according to the pine surge machine of the present invention,
A pine surge effecting body such as a massaging ball or a diaphragm is driven so that changes in characteristics such as rotation speed and amplitude included in its movement within a predetermined time form a set of random patterns. Therefore, there is no clear repetition in the change in the frequency of the acting body, and the user never gets tired of the state of pine surge. When driven so that the magnitude is inversely proportional to the frequency, the motion of the acting body becomes natural, similar to the changing characteristics of wind and waves in nature. For this reason, the pine surge becomes extremely comfortable, and the person using the pine surge does not get tired of the vibration of the effecting body and end the pine surge in a short period of time, and the pine surge effect can be brought out to the fullest.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating the basic configuration of the present invention, FIG. 2 is an external view of a pine serge machine as an embodiment of the present invention,
FIG. 3 is a sectional view showing its configuration, FIG. 4 is an exploded perspective view of the vibration imparting mechanism of the pine surge machine, FIG. 5 is an electric circuit diagram of the pine surge machine of the embodiment, and FIG. 6 shows the processing executed by the CPU 51. 7(A) is a graph showing an example of a change in the rotation speed of the motor 12 that drives the diaphragm 3,
FIGS. 7(B) and 7(C) are graphs showing the relationship between the frequency of rotation speed fluctuation and the magnitude of the change. 1... Case 3... Vibration plate 12... DC motor 14... Output shaft 15... Eccentric bearing 51... CP
U55...Phase control circuit 63...Mode selection switch

Claims (1)

[Scope of Claims] 1. A massage machine comprising a massaging body such as a massaging ball or a vibration plate, and a driving means for driving the body, and changing the movement characteristics of the body over time. A massage machine comprising a characteristic control means for controlling the driving means so that changes in characteristics such as rotation speed and amplitude included in the movement of the effecting body within a predetermined time form a set of random patterns. 2. The massage machine according to claim 1, wherein the characteristic control means generates a pattern in which the magnitude of each frequency component included in the motion of the effecting body within a predetermined time is approximately inversely proportional to the frequency. Massage machine with means.