JPH0328220B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses the suction force of the plunger, which is generated by passing current through the beating tool drive circuit, particularly the solenoid coil, to lightly apply the beating body, such as a disk, to the skin of the face. In the drive circuit of the beating tool that blows warm air around the beating body while beating, the commercial power source is converted into a predetermined DC voltage, and pulse signals with variable predetermined cycles and predetermined duties are generated. The present invention relates to a driving circuit for a striking tool that controls the manner in which the DC voltage is applied to the solenoid coil based on this pulse signal.

Due to its nature, the beating tool, which is a beauty tool, is pressed against the skin of a person's face using a hand, and the beating body is used to lightly hit the skin, as well as to improve the pine surge effect. It is desirable to heat the area with hot air. For this reason, it is desired that the drive circuit drive the striking body with appropriate strength and frequency, and that it be lightweight and compact.

Conventionally, when attempting to drive the striking body in the striking direction using a solenoid in this type of striking implement drive circuit, it has been difficult to correctly match the direction of the driving force of the solenoid with the striking direction of the striking body. It becomes necessary. That is, if the matching is not obtained, the striking body will undesirably come into contact with the inside of the space guide, producing undesired noise, and furthermore, causing trouble in the reciprocating movement of the striking body.

Furthermore, the method in which the beating body reciprocates within the spacer guide has the advantage that the range of reciprocating movement of the beating body is secured by the space guide, and the movement of the beating body is rhythmic.
It is desirable to take advantage of this advantage while adjusting the striking effect. However, in the conventional case, only the speed of the striking body, that is, the number of strikes per unit time, was controlled. Therefore, the intensity with which the skin is lightly tapped by the beating body is always constant, and by adjusting the number of times of hitting per unit time, the pine surge effect can be adjusted to a certain degree. However, in the case of a beating tool that strikes the skin of a person's face, it is desirable to delicately control not only the number of strikes but also the strength of the strikes. Of course, the strength of the beating itself can be adjusted slightly by changing the distance between the beating body and the skin, or the size of the beating body, but subtle adjustments cannot be made. Further, there were other problems such as complicated and inconvenient adjustment.

The present invention aims to solve the above problem. The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a partial cross-sectional view of a beating tool driven by the present invention, FIG. 2 is a longitudinal sectional view of a beating tool driven by the present invention, and FIG. 3 is a partial cross-sectional view of a beating tool driven by the present invention. The circuit diagram of the first embodiment, FIG. 4, explains the operation of the first embodiment shown in FIG.

In the figure, 1 is a handle, 2 is a space guide, 2-1
is the notch, 2-2 is the space guide holder,
3, 3-1 is a switch, 4 is a striking body, 5 is a solenoid coil, 6 is a plunger, 6-1 is a plunger stopper, 6-2 is a cushioning rubber, 7 is a shaft, 8 is a return spring, 8- 1 is a fixture, 9-1 and 9-2 are bearings, 10 is a motor, Y is a blower fan, 12 is a heater, 13 is a strength control knob, 14 and 17 are rectifier circuits, 15 is an oscillation circuit, and 16 is a Transformer, 18 voltage regulator, 19 pulse cycle generation circuit, 9-1, 20
-1 is a variable resistor, 19-2 and 20-2 are multiviprator, 20 is a variable pulse width circuit, 21 is a delay circuit, 22 is a control circuit, and 23 is a drive control circuit.

First, an example of a striking tool driven by the present invention will be explained based on FIGS. 1 and 2.

The beating tool driven by the present invention has a handle 1 on the lower right side of FIG. 2 with one hand of the right or left hand, and a cylindrical space guide 2 on the left side of FIG. Apply by pressing lightly onto the skin of the face. Then, by pressing down the switch 3 shown in FIG. It vibrates and hits the skin, and the diagonally cut notch 2-1 in the space guide 2 blows out warm air to wrap around the left end of the space guide 2 as shown by the arrow, hitting the skin. warm up.

In the beating tool driven by the present invention, the suction force of the plunger 6 which can easily obtain a strong force and easily adjust the force is used to strike the beating body 4 against the skin, Slapping body 4
A small return spring 8 is used because a very strong force is not required to separate the hammer from the skin, and it is sufficient to simply reset the striking body 4, shaft 7, etc. By adopting such a structure, the beating tool driven by the present invention has a structure that is much more robust than the conventional one in which the beating body was hit against the skin using a strong spring force. Since there is no need to do this, the device can be made smaller, and the strength of the beating can be freely controlled.

In Figures 1 and 2, 5 is a solenoid coil, which is wound around a "Japanese"-shaped core, and the magnetic circuit is constructed by covering the periphery with a magnetic body. . A space is provided in a part of the space shown in the figure, in which a movable plunger 6 made of a magnetic material is installed.

The plunger 6 is fixed to the shaft 7, and when a current is applied to the solenoid coil 5, the plunger 6 is drawn into the gap I of the solenoid coil 5, thereby moving the shaft 7 to the left. At this time, the striking body 4 attached to the left end of the shaft 7 strikes the skin of the person's face, and the strength of this striking is determined by varying the strength of the current flowing through the solenoid coil 5. By doing so, you can freely adjust the settings. In addition, in order to suppress the vibration and noise generated when the plunger 6 is drawn into the gap A, the plunger stopper 6-1 fixed to the shaft 7 and the yoke surface of the solenoid coil 5 are prevented from coming into contact with each other. A cushioning rubber 6-2 is attached.

On the other hand, by cutting off the current flowing through the solenoid coil 5, the attractive force generated in the plunger 6 disappears, and the fixing device 8-
The shaft 7 is moved rightward by the tension of a return spring 8, which has one end fixed through the return spring 1 and the other end fixed to a frame (not shown). As a result, the beating body 4 attached to the left end of the shaft 7 is separated from the skin.

In addition, a shaft 7 made of a non-magnetic material such as aluminum alloy to which a magnetic plunger 6 is fixed passes through the inside of the solenoid coil 5, and is inserted through bearings 9-1 and 9-2 at positions on both sides of the shaft 7, as shown in the figure. Fixed to the outside frame.

Next, blowing out of hot air by the beating tool driven by the present invention will be explained.

A blower fan 11 fixed to the shaft of the motor 10
As the is rotated, air is sucked in from the bottom of the handle 1 of the main body as shown by the arrow, cools the solenoid coil 5 by passing through the outside of the solenoid coil 5, and the heated air is further heated by the heater 12. The warm air passes through the inside of the space guide 2 and is blown out through the diagonal notch 2-1 provided in the space guide 2 so as to wrap around the left end of the space guide 2 as shown by the arrow.
Warm the skin. As a result, the skin of the person's face is warmed by the hot air and is also beaten by the beating body 4.

At this time, the strength of the force of the striking body 4 can be controlled by controlling the voltage applied to the solenoid coil 5 by rotating the strength control knob 13 provided at the right end in FIG. Let's do it.

Next, the driving circuit for the hitting tool of the present invention will be explained using FIGS. 3 and 4.

In FIG. 3, reference numeral 14 is a rectifier circuit, which rectifies the AC voltage supplied from the commercial power source via the switch SW 23-1, the fuse, and the filter into DC voltage.

In the figure, reference numeral 15 denotes a known oscillation circuit, which converts the DC voltage rectified by the rectifier circuit 14 into a high frequency, for example, 25KHz rectangular wave voltage, to a transformer T1.
The voltage is applied to the primary winding _L1 of No.6. The primary winding _L2 of the transformer T16 is for applying positive feedback to the oscillation circuit.

The transformer T16 transforms the voltage applied to the primary winding _L1 and outputs it to the secondary winding _L3 .
Generally, a wire is wound around a ferrite core.
It is extremely small and lightweight compared to a commercial frequency (50Hz or 60Hz) transformer of the same capacity.

In the figure, 17 is a rectifier circuit, and a transformer T16
This circuit obtains a DC voltage by half-wave rectifying the AC output voltage from the secondary winding and charging it to a capacitor.

In the figure, reference numeral 18 is a voltage regulator which obtains a stabilized DC voltage, for example 12V, from the unstable DC voltage supplied by the rectifier circuit 17.

Reference numeral 19 in the figure is a pulse period generating circuit, and the period at which the free-running multivibrator 19-2 oscillates by adjusting variable resistors VR1 and 19-1.
This is a circuit that varies T ₁ (Fig. 4A). this cycle
By varying T ₁ , for example 0.1 seconds, the first
The beating body 4 driven by the solenoid coil 5 shown in FIG.

In the figure, reference numeral 20 denotes a pulse width variable circuit, which inputs a pulse signal I (fourth This is a circuit that varies the pulse width T ₂ (FIG. 4 B) in Figure A). By varying this pulse width T ₂ , for example, 4 ms, it is possible to vary the strength with which the above-mentioned striking body 4 strikes the skin of the face.

This is because as the pulse width T ₂ widens/narrows, the time applied to the solenoid coil 5 becomes longer/shorter, so the solenoid drives the plunger 6 with a strong/weak force. be.

21 in the figure is a delay circuit, which is a power switch.
This is to prevent the variable pulse width circuit 20 from malfunctioning when SW2, 3-1 is turned on. That is, the voltage from the voltage regulator 18 rises to the specified voltage of 12V and the pulse period generation circuit 1
A signal is sent to stop the operation of the mono multivibrator 20-2 until the pulse signal A from the mono multivibrator 9 is input to the mono multivibrator 20-2.

Reference numeral 22 in the figure is a control circuit, which outputs the output pulse signal from the variable pulse width circuit 20 (FIG. 4B).
This is a circuit that applies a DC voltage to the solenoid coil 5 based on the above.

In the figure, reference numeral 23 is a drive control circuit, which is provided inside the beating tool driven by the present invention. By turning on switches SW1 and SW3, a DC voltage, for example 30V, is applied to the heater 12 to heat the air, and a divided voltage, for example 4.5V, is applied to the motor 10 from the intermediate terminal of the heater 12. Ru. As a result, warm air is blown out from the beating tool according to the present invention to the part being beaten. . Further, the control circuit 22 applies a DC voltage to the solenoid coil 5 with a pulse width specified by the variable resistors VR2 and 20-1.

At this time, the strength of the force of the striking body 4 is determined by the first
It is adjusted by rotating the intensity control knob 3 shown in the figure.

As explained above, according to the present invention, the variable resistor
By determining the optimum beating cycle using VR1 and 19-1 and adjusting the variable resistances V2 and 20-1 attached to the beating tool, the beating body 4 can be adjusted to the optimal position for facial skin, etc. It becomes possible to strike the ball with the strength of Moreover, since the variable resistors VR2, 20-1 are provided in the main body of the beating tool, and other control circuits, DC power supplies, etc. are provided as separate control devices, the main body of the beating tool can be made small and lightweight.

[Brief explanation of drawings]

FIG. 1 is a partial cross-sectional view of a beating tool driven by the present invention, FIG. 2 is a longitudinal sectional view of a beating tool driven by the present invention, and FIG. 3 is a partial cross-sectional view of a beating tool driven by the present invention. 1st Embodiment Circuit Diagram FIG. 4 shows an explanatory diagram for explaining the operation of the first embodiment shown in FIG. 3. In the figure, 2 is a space guide, 2-1 is a notch, 3, 3-1 is a switch, 4 is a striking body, 5
is a solenoid coil, 6 is a plunger, 7 is a shaft, 8 is a return spring, 10 is a motor,
11 is a blower fan, 12 is a heater, 13 is a strength control knob, 14 and 17 are rectifier circuits, 15 is an oscillation circuit, 16 is a transformer, 18 is a voltage regulator, 19 is a pulse cycle generation circuit, 1
9-1, 20-1 are variable resistors, 19-2, 20-
2 represents a multivibrator, 20 represents a variable pulse width circuit, and 21 represents a delay circuit.

Claims (1)

[Claims] 1. A space guide, a striking body whose striking position is determined by the space guide, a shaft having the striking body at one end, a spring attached to the shaft, and a shaft that moves the shaft in the axial direction. At the same time, a blower fan attached to the motor shaft sucks in air, a heater is provided in the air passage, and the air heated by the heater is blown out around the beating body of the space guide. In the device, a solenoid having a solenoid coil wound in a hollow cylindrical shape and a plunger that reciprocates inside the solenoid coil is provided as the electromagnetic driving portion, and the shaft is provided by passing through the inside of the plunger, and bearings are provided on both left and right sides of the solenoid to movably support the shaft, and when the solenoid is energized, the striking body is supported by the bearings and the striking body is moved in a direction to project outside the space guide. The plunger is configured to move the shaft, and one end is supported by one of the bearings and the other end is supported by the shaft so that the striking body is drawn into the space guide when the solenoid is not energized. a power supply circuit which has a spring having a fixed frequency and which obtains a DC voltage from a DC voltage obtained by rectifying a commercial power source using a DC-DC converter circuit; a pulse cycle generation circuit which generates pulses with a predetermined cycle; a pulse width variable circuit that varies the pulse width of the pulse generated by the pulse period generating circuit; and a DC voltage generated by the power supply circuit based on the output pulse signal from the pulse width variable circuit to the solenoid coil. A driving circuit for driving a striking tool, characterized in that it has a control circuit for applying voltage to the driving circuit.