JP5010398B2 - Massage machine - Google Patents

Description

  The present invention relates to a massage machine, and more particularly to a massage machine capable of changing the massage strength.

  In massage machines that are incorporated into the back of a chair and massage the back of the human body, the massage strength can usually be changed according to the user's preference. Normally, as shown in FIG. 5, the maximum protrusion amount to the human body side of the treatment element that massages the human body by the movement of the treatment element that contacts the human body and temporally changes the protrusion amount to the human body side is changed. Is going on.

  A force sensor capable of detecting the force applied to the human body by the treatment element is provided, and the intensity is changed depending on whether the maximum value detected by the force sensor is a low value or a high value as shown in FIG. However, if the amount of protrusion of the treatment element toward the human body is increased, the above force increases, so in this case as well, the maximum value of the change in protrusion amount of the treatment element during the massage operation changes as the strength changes. There is no change in doing.

  Here, when the massage strength is increased, the amount of protrusion of the treatment element toward the human body increases as described above. However, if the amount of protrusion is too large, an excessive force may be applied to the human body. For this reason, the strength cannot be increased too much.

If the amount of protrusion is changed by feeding back the output of the force sensor as described above, safety can be ensured, but excessive force may still be applied to the human body depending on the movement and response speed of the treatment element. have.
JP 2006-034635 A

  This invention is invented in view of said conventional problem, Comprising: It aims at providing the massage machine which can change a massage intensity | strength safely.

In order to solve the above-described problems, a massage machine according to the present invention includes a treatment element that contacts the human body, and performs a massage operation on the human body by periodically changing the amount of protrusion of the treatment element toward the human body side. The massage strength changing means for changing the massage strength based on the massage strength change instruction changes the peak maintenance time of the human body press during one cycle of the periodic massage operation. In addition to changing the strength, it is characterized in that the strength is changed while keeping the time of one cycle of the change in the amount of protrusion of the treatment element toward the human body constant . Rather than changing the maximum value of the amount of protrusion of the treatment element, the intensity is changed by changing the peak maintenance time of the human body press during one cycle while keeping the one cycle time of the periodic massage operation constant .

  In this case, in the case of directly controlling the protrusion amount, the massage strength changing means may be any means that changes the strength by changing the peak maintenance time of the protrusion amount to the human body side of the treatment element. Any device that detects the force applied to the human body may change the strength by changing the maintenance time of the peak value of the force applied to the human body by the treatment element.

In the present invention, even if the massage strength is increased, the amount of protrusion is too large and excessive force is not applied to the human body, and the massage strength can be changed safely and periodically. In order to change the peak maintenance time of the human body press during one cycle while keeping the one cycle time of the massage operation constant, the massage effect can be appropriately maintained .

  Hereinafter, the present invention will be described with reference to the embodiments shown in the accompanying drawings. For example, the mechanical point of the massage machine is shown in Patent Document 1 (however, the massage strength change shown here is changed). (It is not necessary to use a mechanism for adjusting the strength for the purpose), but any device that massages by applying force to the human body by moving the treatment element can be used. Here, description of the mechanical points is omitted. However, in order to change the massage intensity, if the drive source in the massage drive unit that moves the treatment element and causes the treatment element to perform a massage operation is a motor, a motor whose speed is variable is used as the motor. .

  And in the massage machine which concerns on this invention, the motor speed change part 11 which controls a motor rotational speed is provided to the control circuit 1 which makes the treatment element 2 perform a massage operation by carrying out the control drive of the said motor M, as shown in FIG. It is provided that the change in the amount of protrusion of the treatment element 2 toward the human body is adjusted as follows by adjusting the speed of the motor M when the treatment element 2 is driven for massage.

  That is, as shown in FIG. 1, the peak value of the amount of protrusion of the treatment element 2 toward the human body is constant regardless of the massage strength, but when the massage strength is lowered, The rotation speed of the motor M is controlled via the motor speed changing unit 11 of the control circuit C so that the protrusion amount gradually increases and the peak value is maintained for a short time, and then the protrusion amount gradually decreases. When the massage strength is increased, as shown by the curve B in the figure, the amount of protrusion increases rapidly, and after maintaining the peak value for a while, the amount of protrusion decreases rapidly so that the amount of protrusion decreases rapidly. Is made. However, the peak value of the protrusion amount is the same regardless of the massage intensity. Instead of changing the peak value of the amount of protrusion of the treatment element, the massage intensity is changed by changing the peak maintenance time. For this purpose, the control circuit 1 including the motor speed changing unit 11 performs the massage. It constitutes strength changing means.

  A force sensor S that can detect the force applied to the human body by the treatment element 2 is provided, and the protrusion amount of the treatment element is determined based on a deviation between a value detected by the force sensor S and a target force. In the massage machine to be controlled, the waveform of the target force is set so that the maintenance time of the peak value of the target massage force differs according to the massage intensity, so that when the massage intensity is set low, the waveform shown in FIG. When the massage intensity is set high by controlling the amount of protrusion of the treatment element (controlling the rotation of the motor) so that the force change is slow and the maintenance time of the force peak value is shortened as shown by the curve of The amount of protrusion of the treatment element is controlled so that the change in force is steep and the maintenance time of the peak value of the force becomes longer as shown by the curve 3 in FIG. In this case, the peak value of the massage force is the same regardless of the massage strength.

  The table below shows a table of target massage force when 2.0 cycles for one cycle of massage, 0.1 second of control sampling time, 50N of massage force peak value, and strength setting in 8 stages. By using such a table, it is possible to easily control the massage operations with different massage intensities. Of course, when performing the above protrusion amount control, the strength can be changed by preparing a similar table. Incidentally, FIG. 4 is a graph of the above table, and P1 to P8 in the figure correspond to strength 1 to strength 8 in the above table.

  By the way, the time of one cycle of the massage operation by changing the protruding amount of the treatment element 2 is the same regardless of the change in the strength of the massage, as is apparent from the figure and Table 1 above. For this reason, the breathing cycle of the user is not disturbed with the strength change, and a comfortable massage can be obtained.

It is operation | movement explanatory drawing of an example of embodiment of this invention. It is a block circuit diagram same as the above. It is operation | movement explanatory drawing of the other example same as the above. It is explanatory drawing about operation control same as the above. It is operation | movement explanatory drawing of a prior art example. It is operation | movement explanatory drawing of another prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Control circuit 2 Treatment element 11 Motor speed change part M Motor

Claims (3)

In a massage machine having a treatment element that contacts the human body and performing a massage operation on the human body by periodically changing the amount of protrusion of the treatment element toward the human body and changing the strength of the massage, an instruction to change the massage strength The massage intensity changing means for changing the massage intensity based on the intensity changes the intensity by changing the peak maintenance time of the human body press during one cycle of the periodic massage operation , and the human body side of the treatment element A massage machine characterized in that the strength is changed while keeping the time of one cycle of change in the amount of protrusion to the constant .   2. The massage machine according to claim 1, wherein the massage intensity changing means changes the intensity by changing the peak maintenance time of the protruding amount of the treatment element toward the human body.   The massage machine according to claim 1, wherein the massage intensity changing means changes the intensity by changing a maintenance time of a peak value of the force applied to the human body by the treatment element.

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