JP2629102B2 - Rubbing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massaging apparatus for massaging the soles, lower back, etc. of a body by vibration.

[0002]

2. Description of the Related Art A conventional vibratory massaging device is provided with a single vibrating massaging device. The massaging device is operated by turning on a power switch, and is operated by switching a changeover switch. The configuration is such that a part of the body is massaged through the vibrator during continuous operation or intermittent operation.

[0003]

In the conventional configuration having one vibrator as described above, for example, in a design in which the vibrator is enlarged so that both soles can be massaged at the same time, when the waist or the like is massaged, In addition, it becomes difficult to locally massage a so-called pot, and conversely, in a design in which a vibrator is made small so that a local massage can be performed, for example, both soles cannot be massaged together. There's a problem. In addition, the conventional rubbing apparatus can only operate the vibrator continuously or intermittently, and it is impossible to provide more massage variety.

[0004] It is an object of the present invention to provide a massaging device which can perform local massage, can massage both soles and the like together, and can perform various massages.

[0005]

In order to achieve the above object, the present invention provides a lubrication apparatus having a casing and a spherical vibrator, and exposing the vibrator and juxtaposing it at a predetermined interval on the casing. And two independent vibrating masseters, and a first changeover switch and a second changeover switch. The changeover of the first changeover switch allows both the masseters to be operated continuously or intermittently, and the second
And a control circuit for alternately operating the two rubbing machines by switching a changeover switch.

Further, in order to achieve the above object and to be suitable for massaging the soles of the feet and the waist, the two rubulators are bent with an eccentric weight built in the vibrator and a rotating shaft of the motor. And the vibrator is vibrated by the rotation of the eccentric weight, and the two independent lubricators are arranged in a C-shape when viewed from the front of the casing. It is good to provide in.

[0007]

In the first aspect, since the vibrators of the two independent vibrating anodizing units are spherical, a local massage can be performed by abutting the vibrators on the body, and these vibrators are arranged apart from each other. Therefore, for example, you can put both soles on each of them separately and massage them together. That is, the massage can be performed by two vibrators separately contacting these two places only at two places on the body corresponding to the interval between the two vibrators. Since the two vibrating masseters are independent of each other, any one of continuous operation, intermittent operation, and alternate operation is selected and used by switching the first and second changeover switches of the control circuit. it can.

According to the second aspect, the load applied to the two vibrators greatly differs depending on whether the soles are separately placed on the two vibrators or when the waist is placed over the two vibrators. . By the way, each rubbing machine is arranged in a C shape, and its eccentric weight and the rotating shaft of the motor are connected by a bendable coil spring, so that when the sole is placed, the deflection of the coil spring is small. The interval between the transducers is maintained at an interval suitable for placing the sole of the foot, and when the waist is placed, the coil spring is largely bent so that the interval substantially corresponds to the pots on both sides of the spine.
The vibrators are moved closer to each other.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

1 to 3, reference numeral 1 denotes a substantially rectangular parallelepiped casing, which is formed by connecting a bottom plate 2 and a casing body 3 whose lower end is closed by the bottom plate 2. The casing 1 has an operation panel (not shown). A rectangular opening 3a is formed in the upper wall of the casing body 3, and a switch plate 4 located in the opening 3a is provided. As shown in FIG. 2, the switch plate 4 has a substantially E-shaped configuration in which projections 4b are provided at both ends of a base 4a along the long side of the opening 3a, and projections 4c are provided at an intermediate portion. This switch plate 4 has an opening 3a.
Are mounted via a leaf spring 6 to a pair of mounting portions 5 (only one is shown in FIG. The leaf spring 6 always urges the switch plate 4 upward so as to be flush with the upper wall. The switch plate 4 has engaging pieces 4d at both ends in the longitudinal direction thereof.
a is hooked on the lower surface of the shorter edge portion, thereby holding the switch plate 4 in a horizontal state.

As shown in FIG. 1, two upward supporting projections 11 are provided on the bottom plate 2, and these projections 11 have mounting surfaces 11a inclined in opposite directions. The rubbing machines 12A and 12B are separately fixed to the support projections 11 in contact with the mounting surfaces 11a. That is, the lubricators 12A and 12B are juxtaposed on the casing 1 at predetermined intervals in the longitudinal direction thereof, and the inclined mounting surfaces 11a as shown in FIG.
Are provided in a C-shape arrangement when viewed from the front. Moreover,
In the above arrangement, the distance A between the transducers described later (see FIG. 6)
) Are determined so that the feet do not compete when the soles are separately placed on these two vibrators.

FIG. 4 shows the structure of the two independent rubbing machines 12A and 12B. That is, reference numeral 13 denotes an rubbing machine body having a built-in motor 14 and having a cylindrical portion 13a at one end, and 15 is a hard vibrator having a hollow spherical shape and having a cylindrical portion 15a on its outer surface. . An eccentric weight 16 is incorporated in the vibrator 15, and a shaft 16 a thereof is rotatably supported by a cylindrical portion 15 a via a bearing 17.

A shaft 16a is provided on a rotating shaft 14a of a motor 14 inserted into a cylindrical portion 13a, and a bendable coil spring 18 is provided by fitting both ends of the shafts 14a, 16a.
Are connected via The coil spring 18 is housed in a bellows tube 19 made of a flexible material, and both ends of the tube 19 are fitted to the tube portions 13a and 15a, respectively.

The lubricators 12A and 12B having such a configuration are mounted obliquely as described above, whereby the vibrator 1
5 is located between the projections 4b and 4c of the switch plate 4 and is exposed to the opening 3a of the casing 1. 1 to 3
Reference numeral 23 denotes a flexible cloth-like cover, which is provided so as to cover the outer surface of the casing body 3 exposing the operation panel.

A start switch 21 is provided in the casing 1 via a mounting plate 20 standing upright from the bottom plate 2. The switch 21 is a normally open micro switch. Actuator 2 of start switch 21
A connecting yarn 22 is stretched between 1a and the protrusion 4c. The switch plate 4 always pulls up the actuator 21a by the force of the leaf spring 6 via the thread 22.
Therefore, the start switch 21 keeps the off state when the rubbing device is not used.

In the casing 1, two lubricators 1 are provided.
A control circuit 25 for controlling the operations of 2A and 12B is housed. The control circuit 25 has a first changeover switch 26 and a second changeover switch 27 operated by a knob provided on the outer surface of the casing 1, and the first changeover switch 2
6, the operation of both the masseters 12A and 12B is performed continuously or intermittently, and the second changeover switch 27 is operated.
In this configuration, the two rubbing machines 12A and 12B are alternately operated by switching the operation, and details thereof are shown in FIG. The control circuit 25 includes a motor control circuit 28 and a start circuit 29
, An oscillation circuit 30, a relay drive circuit 31, a first relay 32 and a second relay 33, and a first display circuit 34 and a second display circuit 35.

That is, the motor control circuit 28 includes a motor drive circuit 36 connected to a commercial AC power supply. The drive circuit 36 includes a normally open first relay switch 37 for the motor 14 of one of the rubbing units 12A. The circuit connected in series and the circuit in which the normally open second relay switch 38 is connected in series to the motor 14 of the other rubbing machine 12B are connected in parallel, and the variable resistor 24 is connected.

The resistance value of the variable resistor 24 is adjusted by a knob (not shown) provided on the outer surface of the casing 1, and the motor drive circuit 36
Is to change the current flowing through the motor 14 to increase or decrease the rotation speed of the motor 14, thereby adjusting the intensity of the massage. The first relay switch 37 is closed by excitation of the first relay 32, and the second relay switch 38 is closed by excitation of the second relay 33. The starting circuit 29 includes the transistor 3 inserted in the power supply line.
9, a resistor 40 connected between the base and the ground, and the start switch 21.

The oscillating circuit 30 includes an oscillating section 41 and a flip-flop circuit 42 connected to the oscillating section 41. The flip-flip circuit 42 shapes the oscillation output of the oscillating section 41. The variable resistor 43 included in the oscillation unit 41 is
The value is adjusted by a knob (not shown) provided on the outer surface of the casing 1, and by changing the oscillation frequency of the oscillation unit 41, the on / off time during intermittent operation of the motor 14 is adjusted. Variable.

The relay drive circuit 31 includes a relay controller 31a.
And a relay operation unit 31b. Relay control unit 3
1a includes inverters 44 and 45 and an analog switch 4
6, 47, NAND gates 48, 49, and resistors 52, 5
3 and the first changeover switch 26 and the second changeover switch 27, and the relay operation section 31b is formed by transistors 50 and 51 and resistors 54 and 55.

The output terminal of the oscillation circuit 30 is connected to one input terminal of one NAND gate 48. further,
The output terminal Q of the oscillation circuit 30 is connected to one input terminal of the other NAND gate 49 via one analog switch 46, and is connected to one inverter 44 and the other analog switch 47 connected in series to the inverter 44. The other NAND gate 49 is connected to one input terminal via the other. The other input terminals of the NAND gates 48 and 49 are connected to the power supply line via a resistor 52, and are grounded via the first switch 26.

The interconnection point between the resistor 53 connected to + V and the second switch 27 connected in series to the resistor 53 is:
While being connected to one analog switch 46, the analog switch 4
7 is also connected. Also, one of the NAND gates 48
Is connected to the base of a transistor 50 via a resistor 54, and the output terminal of the other NAND gate 49 is also connected to the base of a transistor 51 via a resistor 55.

The collector of one transistor 50 is the first
The power supply line is connected via a relay 32, and the emitter is grounded. A diode 56 is connected to the first relay 32 in parallel. Similarly, the collector of the other transistor 51 is connected to the power supply line via the first relay 33, and the emitter is grounded. The diode 57 is also connected in parallel to the second relay 33.

The first display circuit 34 includes a resistor 58 connected between + V and the ground, a light emitting diode 59, a transistor 6
A base circuit of the transistor 60 is connected to the output terminal of one of the NAND gates 48 via a resistor 61. The first display circuit 34 conducts the transistor 60 during the period when the output of the NAND gate 48 is in the high state, and causes the light emitting diode 59 to emit light.

Similarly, the second display circuit 35 also includes a resistor 62 connecting + V and ground, a light emitting diode 63, an NPN
The transistor 64 has a collector-emitter series circuit, and the base of the transistor 64 is connected to the output terminal of the other NAND gate 49 via the resistor 65. Therefore, also in the second display circuit 35, the transistor 64 is turned on during the period when the output of the NAND gate 49 is in the high state, and the light emitting diode 63 emits light. Needless to say, the light emitting diodes 59 and 63 are provided on an operation panel on which the knobs (not shown) are arranged.

The massaging apparatus having the above-described structure is connected to a commercial AC power supply, and, for example, puts both feet on the upper surface while being placed on the floor,
It is used on the waist and back. That is, for example, by placing both feet, the weight of the switch plate 4
Is pivoted about the leaf spring 6 and pushed down, so that the soles of the feet 1
5, the connecting thread 22 is loosened and the start switch 21 is automatically closed.

Then, since the transistor 39 is turned on, when both the changeover switches 26 and 27 are both open, a voltage of + V is applied to the one analog switch 46, and this switch 46 is opened, Since the + V voltage is inverted by the other inverter 45, the other analog switch 47 remains closed.

Therefore, the NAND gates 48 and 49 to which the voltage of the power supply line is applied receive the oscillating output at the same time whenever the output terminal of the oscillating circuit 30 goes high, and output a high state. , Both transistors 5
0 and 51 are conducted, and both relays 32 and 33 are applied. Therefore, both relay switches 37 and 38 are closed at the same time by the exciting force of these relays 32 and 33, and the motors 14 of both rubbing machines 12A and 12B are simultaneously driven by the motor drive circuit 36.

When the output terminal of the oscillation circuit goes low, the outputs of both NAND gates 48 and 49 also go low, so that both transistors 50 and 51 become non-conductive and the operation of both masters 12A and 12B stops. Therefore, the relay switches 37 and 38 are switched according to the oscillation frequency of the oscillation circuit 30.
Are turned on and off simultaneously and intermittently, and both anomaly devices 12A, 1
2B can be operated intermittently at the same time. In the above-described intermittent operation, the variable resistor 43 of the oscillation circuit 29 is operated to change the oscillation frequency, so that the on / off operation of the intermittent operation is performed.
The off time can be adjusted according to the user's preference.

When both feet are removed from the upper surface of the massaging device, the switch plate 5 is returned to the original position by the force of the leaf spring 6, so that the start switch 21 is turned off and the operation is automatically stopped. As described above, when the body is placed on the massager, the start switch 21 is turned on to start driving, and when the body is removed, the start switch 21 is turned off and the operation is stopped. Anomaly 12A, 1
Noise due to vibration generated by the operation of 2B can be eliminated.

Further, when the first changeover switch 26 is closed to the continuous operation position in a state where the start switch 21 is turned on, the other input terminals of the two NAND gates 48 and 49 are in either low state. Irrespective of the input state of one of the input terminals connected to, the outputs of both NAND gates 48 and 49 are in the high state. Therefore, as long as the start switch 21 is closed, both relay switches 37,
Numeral 38 is for maintaining the closed state.
A and 12B can be continuously operated simultaneously.

Further, when the second changeover switch 27 is closed to the alternate operation position in a state where the start switch 21 is turned on, contrary to the case of the continuous operation, one analog switch 46 is closed and the other is closed. The analog switch 47 is opened. At this time, the first changeover switch 26 is open.

Therefore, when the transmission output is in the high state, a high output is input to one input terminal of one NAND gate 48, but is inverted by the inverter 44 to one input terminal of the other NAND gate 49. Low output is applied.

Conversely, when the transmission output is in a low state, a low output is input to one input terminal of one NAND gate 48, but is inverted by an inverter 44 to one input terminal of the other NAND gate 49. The applied high output is applied. Therefore, the two relays 32, 33 operated via the transistors 50 or 51 by the high outputs of the NAND gates 48, 49 operate in opposite phases to each other. The units 12A and 12B are operated alternately.

As described above, by selecting the operation mode by the first changeover switch 26 and the second changeover switch 27, not only the intermittent operation and the continuous operation but also the two rubbing machines 12A and 12B can be operated alternately. Therefore, since a variety of massage operations can be ensured, massage according to the user's preference can be performed, which is convenient for use.

Further, since the vibrators 15 of the two rubbing devices 12A and B included in the rubbing device are spherical, they locally hit the affected part such as the sole of the foot via the cover 23, and the affected part is vibrated. Then, massage can be performed in any of the driving modes described above.

Further, two rubulators 12A and 12B are provided, and when an affected part such as a foot L to which a light load is applied as shown in FIG. , 12B hardly bend, and these vibrators 15 maintain a mutual separation distance A suitable for placing both feet.
Put one foot on 5 and massage both feet together.

However, as shown in FIG. 7, when an affected part such as the lumbar portion W, which exerts a heavy load, is placed over both vibrators 15, the two rubulators 12A, 12A,
The 12B coil spring 18 is bent. Therefore, the two transducers 15 come close to each other, and the distance B between them substantially matches the distance (about 6 cm) between the crucibles located on both sides of the spine. Therefore, it is suitable for massaging the lower back and the back, and it is not necessary to perform a special switching operation for the massage.

The second embodiment of the present invention shown in FIGS. 8 to 10 has a pair of projections 1 having different heights on the vibrator 15.
5d and 15u are provided so that, in the relationship between the two vibrators 15, the high protrusion 15u is located inside and the low protrusion 15d is located outside, and the vibrator 15 and the lubricator body 13 Are connected by a hard tube 71. The distance B between the projections 15u of both vibrators 15 (see FIG. 1)
0) is the distance between the pots located on both sides of the spine (about 6).
cm). The configuration other than the above point is the same as that of the above-described embodiment, including portions not shown.

In this embodiment, when the foot L is placed on the vibrator 15, the foot L is placed over the projections 15d and 15 as shown in FIG. In spite of the narrow interval B between the two, the feet L can be placed on the respective vibrators 15 without competing with each other, so that the feet L can be massaged simultaneously. Further, when the waist W and the like are placed over both vibrators 15, the waist W and the like have a high protrusion 15 as shown in FIG.
The projections 15u are placed on each other, and the distance B between the projections 15u substantially matches the distance between the crucibles located on both sides of the spine.

FIGS. 11 to 13 show a third embodiment of the present invention. In the configuration of the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted. Only different configurations will be described below. The third embodiment differs from the first embodiment in the configuration of a switch plate, a start switch, and a control circuit.

As shown in FIG. 11 and FIG. 12, two switch plates each having projections 4b provided at both ends of a base 4a and having a substantially U-shaped plane shape are used.
One of the switch plates 4A is connected to one of the
The vibrator 15 of A is disposed between the two protrusions 4b and attached to the casing 1 via a pair of leaf springs 6. The engaging piece 4d for holding the switch plate 4A in a horizontal state has an opening 3
It is provided on one protruding portion 4b near the edge of a. Similarly, the other switch plate 4B has the vibrator 15 of the other rubbing device 12B disposed between the two projections 4b and attached to the casing 1 via a pair of leaf springs 6. This switch plate 4
An engaging piece 4d for holding B in a horizontal state is provided on one of the protrusions 4b near the edge of the opening 3a.

A pair of start switches 21A and 21B respectively corresponding to the switch plates 4A and 4B are built in the casing 1. These switches 21A, 21
B is a normally open type micro switch identical to the start switch of the first embodiment. The connection thread 22 of one activation switch 21A corresponding to the switch plate 4A is connected to one projection 4a of the switch plate 4A. Similarly, the connecting thread 22 of the other start switch 21B arranged corresponding to the other switch plate 4B is connected to the protrusion 4a of the other switch plate 4B. Therefore, since the actuators 21a of these start switches 21A and 21B are all pulled up by the force of the leaf spring 6, the start switches 21A and 21B hold the off state at normal times.

As shown in FIG. 13, the control circuit 125
Is provided with a first activation circuit 29A and a second activation circuit 29B in place of the activation circuit of the first embodiment, and these are provided with a relay control section 31a and a relay operation section 31b of the relay drive circuit 31.
The configuration is the same as that of the control circuit of the first embodiment except that the control circuit is inserted between the first embodiment and the second embodiment.

The first starting circuit 29A includes a resistor 40a and a first
It is formed by a start switch 21A and a transistor 39a. The resistor 40a and the first start switch 21A are connected in series, and this series circuit is connected to the power supply line (+ V).
And ground. The base of the transistor 39a is connected to the interconnection point between the resistor 40a and the first start switch 21A. The collector of the transistor 39a is connected between the output terminal of the NAND gate 48 of the relay control section 31a and the resistor 54 of the relay operation section 31b, and the emitter of the transistor 39a is grounded.

Similarly, the second starting circuit 29B includes a resistor 40b
, A second start switch 21B, and a transistor 39b. Resistor 40b and second start switch 21B
Are connected in series, and this series circuit connects the power supply line (+ V) and ground. Transistor 3
9b is composed of a resistor 40b and a second start switch 21
B is connected to the interconnection point. Transistor 39b
Is connected between the output terminal of the NAND gate 49 of the relay control section 31a and the resistor 55 of the relay operation section 31b, and the emitter of the transistor 39b is grounded.

The operation of the third embodiment is different from that of the first embodiment in that when a foot is placed on only one of the switch plates 4A, only the corresponding rubbing device 12A is operated.
When a foot is placed only on the other switch 4B, only the corresponding rubbing device 12B is operated.

That is, when no foot is placed on the massaging device connected to the commercial AC power supply, each of the start switches 21A and 21B of the first and second start circuits 29A and 29B is off. Therefore, the first and second starting circuits 2
A voltage of + V is applied to each of the transistors 39a and 39b of the transistors 9A and 29B.
a, 39b are in the ON state. Therefore, the output of each of the NAND gates 48 and 49 of the relay control unit 31a is grounded through the emitter and the collector of each of the transistors 39a and 39b, so that each of the transistors 50 and 51 of the relay operation unit 31b maintains the OFF state. And
Therefore, the rubbing machines 12A and 12B are stopped.

Then, for example, only the left foot is connected to the switch plate 4A.
, The start switch 21A of the first start circuit 29A
Is turned on, and the transistor 39a is turned off. Therefore, the above-described operation of invalidating the output of the NAND gate 48 by the first activation circuit 29A disappears, and the transistor 50 is turned on in response to the output from the gate 48. The left rubbing device 12A corresponding to 4A is operated. At this time, since the right start switch 21B is in the off state, the other rubbing device 12B does not operate. Therefore, the massage is performed only by the massager 12A on which the left foot is placed.

Similarly, when only the right foot is placed on the other switch plate 4B, the activation switch 2 of the second activation circuit 29B is activated.
1B is turned on, and the transistor 39b is turned off. Therefore, the above-described function of invalidating the output of the NAND gate 49 by the second activation circuit 29B disappears, and the transistor 51 is turned on in response to the output from the gate 49. Therefore, the switch plate 4B in FIGS. Is operated on the right side. At this time, since the left start switch 21A is in the off state, the left rubbing device 12A does not operate. Therefore, the massage is performed only by the massager 12B on which the right foot is placed.

As described above, in the third embodiment, when performing massage with only one foot, one of the massagers 12A (or 12B) is stopped, so that there is no wasteful power consumption and low noise. Can be used with

Of course, when the left foot is put on the switch plate 4A and the right foot is put on the switch plate 4B, both the lubricators 12A and 1
Since 2B operates, both feet can be massaged together.
Also, in the third embodiment, both annealers 12A, 12A, 1
In the operating state of 2B, the first and second changeover switches 26 and 2
7, the two greasers 12A, 12B are continuously operated by the same operation as in the first embodiment.
Can be used for either intermittent operation or alternating operation,
Of course, the intended object of the present invention can be achieved.

In the present invention, a hand operation unit is provided separately from the casing 1 and connected to the internal circuit via a cable, and the operation unit includes the variable resistors 24 and 43, the first changeover switch 26, and The second changeover switch 27 may be provided so that various operations can be performed at hand.

[0054]

As described above in detail, in the rubbing apparatus of the first aspect, the body of the body according to the distance between the two spherical vibrators is adjusted.
The massage can be performed only by the two vibrators separately contacting each other, and the two vibrating masseters are continuously operated by the switching operation of the first and second changeover switches of the control circuit. Since it can be used in any of the intermittent operation and the alternating operation, it is possible to perform local massage, massage both feet and the like together, and perform various massages.

According to the second aspect of the invention, the distance between the vibrators is reduced while achieving the desired object of the present invention.
Depending on the load given by the body part placed on these, it can be changed widely when the load is light, and narrow when the load is heavy, so it is suitable for places where the massage conditions such as the soles of the feet and the waist are different, respectively. Massage is possible.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rubbing apparatus according to a first embodiment of the present invention;
Sectional drawing shown along the -Z line.

FIG. 2 is a plan view showing the entire rubbing apparatus according to the first embodiment with a part of its cover omitted.

FIG. 3 is a sectional view showing the rubbing apparatus according to the first embodiment along the line YY in FIG. 2;

FIG. 4 is a vertical sectional side view showing a vibratory massaging device used in the massaging apparatus according to the first embodiment.

FIG. 5 is an electric circuit diagram of the rubbing apparatus according to the first embodiment.

FIG. 6 is a diagram for explaining the operation of the rubbing device according to the first embodiment.

FIG. 7 is a view for explaining the operation of the rubbing device according to the first embodiment.

FIG. 8 is a plan view of a vibrator used in the rubbing device according to the second embodiment of the present invention.

FIG. 9 is a view for explaining the operation of the rubbing device according to the second embodiment.

FIG. 10 is a view for explaining the operation of the rubbing device according to the second embodiment.

FIG. 11 is a perspective view of a third embodiment of the present invention;
Sectional drawing shown along a middle XX line.

FIG. 12 is a plan view showing the entire rubbing apparatus according to the third embodiment with a part of its cover omitted.

FIG. 13 is an electric circuit diagram of the rubbing apparatus according to the third embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Casing, 12A, 12B ... Lubricator, 14 ... Motor, 14a ... Rotating shaft, 15 ... Vibrator, 16 ... Eccentric weight,
18: coil spring, 25: control circuit, 26: first switch, 27: second switch.

Claims (2)

(57) [Claims] 1. A casing, comprising: a spherical vibrator; two independent vibrating lubricators arranged side by side at predetermined intervals on the casing by exposing the vibrator; a first changeover switch; Two changeover switches, the first
And a control circuit for causing both the masseters to operate continuously or intermittently by switching a changeover switch and alternately operating the masseters by changing a second changeover switch. 2. A casing, comprising a spherical vibrator, two independent vibrating lubricators arranged in parallel with a predetermined interval on the casing by exposing the vibrator, a first changeover switch and a second changeover switch. Two changeover switches, the first
A control circuit for causing the two rubulators to operate continuously or intermittently by switching a changeover switch, and alternately operating the two rubulators by switching the second changeover switch. The eccentric weight built in the vibrator and the rotating shaft of the motor are connected by a bendable coil spring, and the vibrator is vibrated by the rotation of the eccentric weight. A rubbing device provided in the casing in a C-shape arrangement as viewed from the front of the casing.