JP3924353B2 - Massage machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a massage machine that causes a treatment element to massage and massage by driving a motor.
[0002]
[Prior art]
Conventionally, as disclosed in JP-A-5-15560, a massage machine is known in which a cam is attached to a rotating shaft rotated by a motor, and a pair of treatment elements is massaged by the rotation of the cam. Further, the rotation of the rotating shaft is configured to be transmitted to the cam through the elastic body, and when the affected part is sandwiched between the sudden movement of the treatment element or the pair of treatment elements, the elastic body is elastically deformed to the affected part. I try to relieve the stimulation.
[0003]
[Problems to be solved by the invention]
However, with these conventional ones, the treatment element is driven via an elastic body even during normal massage treatment, so even if you want to receive a strong massage massage, the irritation is eased and massage massage There was a problem that there was a case where the effect of was not fully received.
[0004]
The subject of this invention is providing the massage machine which can receive the massage effect fully, without relieving irritation | stimulation, even when it wants to receive a strong massage.
[0005]
[Means for Solving the Problems]
In order to achieve this problem, the present invention has taken the following measures in order to solve the problem. That is,
In massager to massage motion rubbing the treatment elements driven by the motor,
A heavy load detecting means for detecting a heavy load applied to the motor;
Pulse generating means for outputting a pulse signal when the strong load is detected;
The massage machine is characterized by comprising control means for intermittently controlling the motor in response to a pulse signal from the pulse generating means.
[0006]
The pulse generation means may include a setting device for setting the pulse width of the generated pulse signal .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, reference numeral 1 denotes a main body case in which an electric motor 2 is accommodated. A gear case 4 is formed in the main body case 1, and a worm gear 6 attached to the rotating shaft of the electric motor 2 is inserted into the gear case 4.
[0008]
The worm gear 6 is engaged with a wheel gear 10 integrated with a support shaft 8 rotatably supported by the gear case 4, and a small gear 12 is integrally attached to the support shaft 8. The small gear 12 meshes with a large gear 16 that is integrally attached to a rotating shaft 14 that is rotatably supported by the gear case 4.
[0009]
The rotating shaft 14 protrudes outside from the main body case 1, and a pair of inclined cams 20 and 22 are attached to the rotating shaft 14 protruding from the main body case 1 at a predetermined interval. Treatment elements 24 and 26 are engaged with the pair of inclined cams 20 and 22, respectively. The rotating shaft 14 protruding from the main body case 1 is housed in a cylindrical housing case 28 and is rotatably inserted into a pair of bearing portions 30 and 32 formed in the housing case 28.
[0010]
As shown in FIG. 1, one inclined cam 20 includes a first cam portion 34 that rotates integrally with a key groove 14 a formed in the rotation shaft 14 via a key (not shown). A shaft portion 34 a is provided coaxially with the rotating shaft 14. Further, the first cam portion 34 is formed with an inclined surface 34b inclined with respect to the axial direction of the rotary shaft 14, and the second cam portion 36 having an inclined surface 36a parallel to the inclined surface 34b is the first cam portion. 34 so as to rotate integrally therewith. A treatment element 24 is rotatably mounted on the shaft portion 34a, and the treatment element 24 is sandwiched between both inclined surfaces 34b and 36a.
[0011]
The treatment element 24 protrudes outside the storage case 28 from an elongated opening 38 formed in the storage case 28. In addition, one end of the treatment element 24 is inserted into a groove 40 parallel to the axial direction of the rotary shaft 14 formed in the storage case 28 to restrict relative rotation between the storage case 28 and the treatment element 24.
[0012]
The other inclined cam 22 is different from the inclined cam 20 in that the other inclined cam 22 is locked so as not to slide in the axial direction of the rotary shaft 14. Other points are the other inclined cam 22 and the treatment element 26. Since the configuration is the same as that of the inclined cam 20 and the treatment element 24, detailed description thereof is omitted. In this embodiment, the electric motor 2, the worm gear 6, the support shaft 8, the wheel gear 10, the small gear 12, the rotary shaft 14, the large gear 16, and the pair of inclined cams 20 and 22 constitute the drive mechanism 41. .
[0013]
As shown in FIG. 1, the storage case 28 is inserted into the main body case 1 and is relatively rotated between the storage case 28 and the main body case 1 by a regulating member 42 slidably provided on the main body case 1. Is regulated. The main body case 1 and the storage case 28 may be integrally formed.
[0014]
On the other hand, the operation tube 44 is slidably mounted on the outer periphery of the storage case 28, and the movement of the operation tube 44 and the restriction of the movement of the operation tube 44 can be selected by operating a release button (not shown). It is configured. A connecting member 46 is rotatably fitted to the first cam portion 34, and is prevented from coming off by a retaining ring 48 attached to the first cam portion 34.
[0015]
The connecting member 46 is engaged with the operation tube 44, and the first cam portion 34 is moved along the rotation shaft 14 via the connecting member 46 by moving the operation tube 44 along the outer periphery of the storage case 28. It can be moved. By operating a release button (not shown) to move the operation cylinder 44, the distance between the pair of treatment elements 24 and 26 can be adjusted according to the affected area.
[0016]
As shown in FIG. 2, the electric motor 2 is connected to an AC power source (not shown) via a DC circuit 50 and an on / off circuit 52. The on / off circuit 52 is a circuit that controls connection / disconnection with an AC power source in accordance with an external signal using a bidirectional thyristor or the like. The DC circuit 50 is a circuit that smoothes the current rectified by the on / off circuit 52 and supplies it to the electric motor 2.
[0017]
A detection resistor 54 is interposed between the electric motor 2 and the DC circuit 50, and a heavy load detection circuit 56 as a heavy load detection means is connected to the detection resistor 54. The heavy load detection circuit 56 is a circuit that detects the current flowing through the detection resistor, compares it with a preset current value, and outputs a signal to a pulse generation circuit 58 as pulse generation means when the current value is exceeded. .
[0018]
That is, the load applied to the electric motor 2 is proportional to the value of the current flowing through the detection resistor 54, and the current value increases as the load increases. A signal is output from the heavy load detection circuit 56 to the pulse generation circuit 58 when a strong load is applied to the electric motor 2 when the strength of the massage performed by the two treatment elements 24 and 26 is increased.
[0019]
The pulse generation circuit 58 is a circuit that outputs a pulse signal having a preset frequency to the control circuit 60 when a signal is input from the heavy load detection circuit 56. This pulse signal is a signal having a long cycle, and one cycle (t1) is a signal of several seconds (see FIG. 1), for example, about 5 seconds. Note that the period of the pulse signal may be variable. Further, the pulse generating circuit 58 includes a setting device 62, and is configured so that the setting device 62 can set the pulse width (t2) of the pulse signal.
[0020]
When a pulse signal from the pulse generation circuit 58 is input to the control circuit 60, the control circuit 60 sends an on / off signal to the on / off circuit 52 once during one cycle (t1) of the pulse signal in response to the pulse signal. Output. For example, the control circuit 60 outputs an ON signal to the ON / OFF circuit 52 when the pulse signal from the pulse generation circuit 58 is at a low level. The on / off circuit 52 receives the on signal and connects the AC power source and the DC circuit 50. Further, when the pulse signal is at a high level, the on / off circuit 52 cuts off the AC power supply and the DC circuit 50 and stops the driving of the electric motor 2.
[0021]
Next, the operation of the massage machine of the present embodiment described above will be described.
First, when the electric motor 2 is driven, the rotary shaft 14 is rotationally driven via the worm gear 6, the wheel gear 10, the support shaft 8, the small gear 12, and the large gear 16. As the rotary shaft 14 rotates, the pair of inclined cams 20 and 22 rotate. Since both the treatment elements 24 and 26 are restricted from rotating around the rotation shaft 14 by the groove 40, both the treatment elements 24 and 26 are moved to the direction shown in FIG. 1 by the rotation of the inclined surfaces 34b and 36a around the rotation axis 14. As shown, a massage massage exercise is performed in which both treatment elements 24 and 26 approach or leave. The treatment elements 24 and 26 can be applied to the affected area to receive massage.
[0022]
When changing the interval between the two treatment elements 24 and 26 according to the affected part, the operation tube 44 is slid along the storage case 28 by grasping the operation tube 44 by hand. As a result, the first cam portion 34 moves along the rotation shaft 14 via the connecting member 46. Accordingly, the treatment element 24 moves along with the first cam portion 34 along the rotation shaft 14. When the distance between the treatment elements 24 and 26 becomes an appropriate distance according to the affected area, the movement of the operation cylinder 44 is stopped.
[0023]
By supplying electric power to the electric motor 2, the treatment elements 24 and 26 applied to the affected area perform massage massage. At this time, the current supplied to the electric motor 2 increases in proportion to an increase in the load applied to both treatment elements 24 and 26. When the affected part is sandwiched between the treatment elements 24 and 26 and the load is increased, and the load applied by the heavy load detection circuit 56 is detected to exceed the heavy load, a signal is sent to the pulse generation circuit 58. Is output.
[0024]
The pulse generation circuit 58 receives this signal and outputs a pulse signal to the control circuit 60. Upon receiving this pulse signal, the control circuit 60 outputs a signal to the on / off circuit 52, and the on / off circuit 52 repeats connection / disconnection according to the pulse signal. Therefore, the electric motor 2 is repeatedly driven and stopped according to the pulse signal, and both the treatment elements 24 and 26 repeat the massage motion and the stop.
[0025]
When both the therapeutic elements 24 and 26 repeat the massage motion and stop, if the massage massage feels too strong, the affected part is separated from the therapeutic elements 24 and 26. At that time, since the massage massage movement of the treatment elements 24 and 26 is temporarily stopped, the user can easily separate the affected part from the treatment elements 24 and 26. Therefore, since the load of the electric motor 2 is reduced, the treatment elements 24 and 26 continuously massage and exercise again.
[0026]
Or, if you want to receive a strong massage, you can keep it as it is. Thereby, itching massage exercise and stopping are repeated. At that time, since the electric motor 2 is supplied with a current corresponding to a heavy load, the massage massage exercise is performed with a strong force, and the user can receive a strong massage massage.
[0027]
Moreover, by adjusting the setting device 62, it is possible to adjust the time for the massage massage exercise, and the user can receive a comfortable massage massage. The present invention is not limited to such embodiments as described above, and can be implemented in various modes without departing from the gist of the present invention.
[0028]
【The invention's effect】
As described in detail above, the massaging machine of the present invention repeats the massaging exercise and the stop when it becomes a heavy load. At that time, the user can easily remove the affected part from the treatment element, or can receive a strong massage as it is, so that the user can receive a comfortable massage. Further, by adjusting the setting device, the user can receive a massage suitable for him / her.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a massage machine as one embodiment of the present invention.
FIG. 2 is a circuit diagram of an electrical system of the massage machine according to the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Main body case 2 ... Electric motor 14 ... Rotating shaft 20, 22 ... Inclination cam 24, 26 ... Treatment element 41 ... Drive mechanism 50 ... DC circuit 52 ... On-off circuit 56 ... Heavy load detection circuit 58 ... Pulse generation circuit 60 ... Control Circuit 62 ... Setting device

Claims (2)

In massager to massage motion rubbing the treatment elements driven by the motor,
A heavy load detecting means for detecting a heavy load applied to the motor;
Pulse generating means for outputting a pulse signal when the strong load is detected;
A massage machine comprising: control means for intermittently controlling the motor according to a pulse signal from the pulse generation means.   2. The massage machine according to claim 1, wherein the pulse generating means includes a setting device for setting a pulse width of a generated pulse signal.

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