JPS6045349A - Beating tool driving circuit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses a striking tool drive circuit, particularly a solenoid coil, to generate a plunger's suction force to lightly strike a disc-shaped striking body against the skin of the face, etc. In the driving circuit of the beating tool that blows warm air around the beating body as it hits, the commercial power supply is converted to a specified DC voltage, and a pulse signal with a specified period and a specified demonstration is made variable is generated. The present invention relates to a driving circuit for a striking tool, which controls the manner in which the DC voltage is applied to the solenoid coil based on the pulse signal.

Due to its nature, the beating tool, which is a beauty tool, is pressed against the skin of two people's faces using their hands, and the beating body is used to lightly hit the skin, as well as to achieve a good pine surge effect. It is desirable to heat the area with hot air.

For this reason, the drive circuit.

It is desired that the beating body be driven with appropriate strength and frequency, and that it be lightweight and compact.

Conventionally, this type of driving circuit for a striking tool has controlled only the speed at which the striking body strikes, that is, the number of strikes per unit time. For this reason, the strength with which the skin is lightly struck by the beating body is always constant, and by adjusting the number of strikes per unit time, a certain degree of pine surge effect can be achieved.

You can make adjustments. However, in the case of a beating tool that hits the skin of a person's face, not only the number of times mentioned above, but also
It is desirable to delicately control the strength of the strike. Of course, the strength of the strike itself.

Although it is possible to make slight adjustments by changing the distance between the beating body and the i-waste, or the size of the beating body, it is difficult to make subtle observations, and the adjustment is complicated and inconvenient. There was a problem.

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 circuit diagram of an embodiment of the present invention. 4 are explanatory diagrams for explaining the operation of the first embodiment shown in FIG. 3.

In the figure, 1 is a handle, 2 is a space guide, 2-1 is a notch, and 2-2 is a space guide holder.

3, '3-1 is a switch, 4 is a striking body, 5 is a solenoid coil, 6 is a plunger, 4-1 is a plunger stopper, 6-2 is a cushioning rubber, 7 is a shaft, 8 is a return spring, 8- 1 is a fixture.

9-1.9-2 is a bearing, 10 is a motor, 11 is a blower fan, 12 is a heater, 13 is a strength control knob, 14.17 is a rectifier circuit, 15 is an oscillation circuit, 16 is a transformer, 18 is a voltage regulator.

19 is a pulse cycle generation circuit, 19-1.20-1 is a variable resistor, and 19-2.20-2 is a multi-by-break.

20 represents a pulse width variable circuit, 21 a delay circuit, 22 a control circuit, and 25 a drive control circuit.

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

The beating tool driven by the present invention is designed to hold the handle 1 at the lower right of FIG. 2 with either the right hand or one left hand, and
A cylindrical space guide 2 located on the left side of the figure is used by lightly pressing it against the skin of a person's face. Then, by pressing down the switch 6 shown in FIG. 2 on the upper right side of the handle 1, the power is turned on, and the disk-shaped striking body 4 stored inside the cylindrical space guide 2 is moved in the direction of the arrow. It vibrates from side to side as if hitting the skin debris, and at the same time, warm air is blown out from the diagonally cut 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.

In the beating tool driven by the present invention, the suction force of the plunger B, which can easily obtain a strong force and easily adjust the force, is used to strike the beating body 4 against the skin. A small return spring 8 is used because a very strong force is not required to separate the body 4 from the skin, and it is sufficient to simply reset the hitting body 4, shaft 7, etc. Due to this configuration of the beating tool driven by the present invention, it is necessary to make the structure much stronger compared to the conventional one in which the beating body was hit against the skin by the force of a strong spring. Since there are no holes, 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 its surroundings are covered with a magnetic material to form a magnetic circuit. . A gap is provided in a part of the space shown in the figure, and a movable pusher 6 made of a magnetic material is installed therein.

- the plunger 6 is fixed to the shaft 7;

By passing current through the solenoid coil 5.

The plunger 6 is driven into the gap (2) of the solenoid coil 5 to move 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 can be determined by varying the strength of the current flowing through the solenoid coil 5. By doing.

Can be adjusted freely. In addition, in order to suppress the vibration and sound generated when the plunger 6 is drawn into the gap (■), a buffer is provided to prevent the plunger stopper 6-1 fixed to the shaft 7 from coming into contact with the yoke surface of the solenoid coil 5. Attach rubber 6-2. - On the other hand, by cutting off the current flowing through the solenoid coil 5, the attractive force generated in the plunger B disappears, and one end is fixed to the shaft 7 via the fixture 8-1, and the other end is fixed to the shaft 7 via the fixture 8-1. The shaft 7 is moved to the right by the tension of a return spring 8 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 non-magnetic body 2 to which a magnetic plunger 6 is fixed is also provided.
For example, an aluminum alloy shaft 7 passes through the solenoid coil 5, and bearings 9-1 and ? -2 to a frame not shown.

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

As the blower fan 11 fixed to the glaze of the motor 10 rotates, air is sucked in from the bottom of the handle 1 of the main body as shown by the arrow, passes outside the solenoid coil 5, and cools the solenoid coil 5. At the same time, the heated air is further heated by the heater 12, and the warm air is passed through the inside of the space guide 2, and the diagonal notch 2-1 formed in the space guide 2 causes the warm air to flow into the space guide as shown by the arrow. A speech bubble that wraps around the left edge of 2.

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 is controlled by controlling the voltage applied to the solenoid coil 5 by rotating a strength control knob 13 provided at the right end in FIG.

Next, the driving circuit for the hitting tool of the present invention will be explained using FIG. 6 and FIG. 4.

Reference numeral 14 in FIG. 3 is a rectifier circuit that rectifies the AC voltage supplied from the commercial power source via the switch SW2 (3-1!), the fuse, and the filter into a DC voltage.

15 in the figure is a known oscillation circuit, and the rectifier circuit 14
High frequency from direct voltage rectified by.

For example, a 25KHz rectangular wave voltage is applied to the transformer T (16).
The voltage is applied to the primary winding L1 of. Transformer T (1
The primary winding L2 of 6) is used to provide positive feedback to the development circuit.

The transformer T (16) transforms the voltage applied to the primary winding L0 and outputs it to the secondary winding mL3.The transformer T (16) is generally wound around a ferrite core, and operates at the commercial frequency (5
0Hz! It is extremely small and lightweight compared to a transformer with the same capacity (60 Hz).

In the figure, 17 is a rectifier circuit, which half-wave rectifies the AC output voltage from the secondary winding of the transformer T (1 (S)) and obtains a DC voltage by charging a capacitor.

In the figure, 18 is a voltage regulator, and the rectifier circuit 1
A stabilized DC voltage 9, for example 12V, is obtained from the unstable DC voltage supplied by 7.

Reference numeral 19 in the figure is a pulse cycle generation circuit, in which a variable resistor VR
1 (19-1), the period Tl in which the self-running multivibrator (19-2) oscillates (Fig. 4)
). This period Tyu1, for example, 0.1
By varying the seconds, it is possible to vary the frequency at which the striking body 4 driven by the solenoid coil 5 shown in FIG. 1 or 2 strikes the skin of the face or the like.

20 in the figure is a pulse width variable circuit, and variable resistor VR2
(20-1) from the self-propelled multivibrator (19-2) to the mono-multivibrator (20-1).
-2) This is a circuit that varies the pulse width T2 (Fig. 4 @) of the input pulse signal (■) (Fig. 4). By varying this pulse width T22, for example, 4 ms, it is possible to vary the strength with which the above-mentioned hitting body 4 hits the skin of the face.

This is because as the pulse width T2 widens/narrows, the time applied to the solenoid coil 5 becomes longer/shorter, and the solenoid drives the plunger 6f with a stronger/weaker force. .

In the figure, 21 is a delay circuit, which is a power switch SW2.
This is to prevent the variable pulse width circuit 20 from malfunctioning unless (5-1) is turned on. That is, the operation of the mono multi-pipe rake 20-2 is continued until the voltage from the voltage regulator 18 rises to the specified voltage (12V) K and the pulse signal (2) from the pulse period generating circuit 19 is input to the mono-multi vibrator 20-2. It sends out a signal to stop it.

22 in the figure is a control circuit, and the pulse width variable circuit 2
This is a circuit that applies a DC voltage to the solenoid coil 5 based on the output pulse signal O (Fig. 4 @) from 0.

In the figure, reference numeral 23 denotes a drive control circuit, which is provided inside the beating tool driven by the present invention. By turning on the switch 5W1 (3), the DC voltage 2
For example, a voltage 9 is applied to the heater 12 to heat the air, and a divided voltage 9, for example 4.5 cm, is applied to the motor 10 from an intermediate terminal of the heater 12. As a result, hot air is blown out from the beating tool according to the present invention to the area being beaten. Further, a DC voltage having a pulse width specified by the variable resistor VR2 (20-1) is applied to the solenoid coil 5 by the control circuit 22.

At this time, the strength of the force of the striking body 4 is determined by the variable resistance VR2.
The adjustment is made by rotating the intensity control knob 13 shown in FIG. 1, which is connected to the movable shaft (20-1).

As explained above, according to the present invention, variable resistance VR1
(19-1) to determine the optimum beating period, and variable resistor VR2 (20-1) attached to the beating tool.
), it becomes possible to make the striking body 4 strike the skin of the face, etc., with an arbitrary intensity that is optimal. Moreover, the body of the beating tool has a variable resistance V R2 (-2
0-1), and other control circuits, DC power supplies, etc. are provided as separate control devices, so the main body of the striking tool becomes small and lightweight.

[Brief explanation of the drawing]

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. 6 is a partial cross-sectional view of a beating tool driven by the present invention. Example circuit diagram,
FIG. 4 shows an explanatory diagram for explaining the operation of the first embodiment shown in FIG. . In the figure, 2 is a space guide, 2-1 is a notch + 5
15 1 is a switch, 4 is a striking body, 5 is a solenoid coil, 6 is a plunger, 7 is a shift lever, 8 is a return spring, and 10 is a motor. 11 is a blower fan, 12 is a heater, 13 is a strength control knob, and 14.17 is a rectifier circuit. 15 is an oscillation circuit, 16 is a transformer, 18 is a voltage regulator, 19 is a pulse cycle generation circuit, 19-1゜20-1
20-2 is a variable resistor, 19-2, 20-2 is a multivibrator, 20 is a variable pulse width circuit, and 21 is a delay circuit. Patent applicant Bio Mabuchi Co., Ltd.

Claims (1)

[Scope of Claim] A driving circuit for a striking tool, which includes at least a plunger driven by applying a voltage to a solenoid coil, and a striking body attached via a shaft fixed to the pushing plunger. A power supply circuit that obtains a DC voltage using a DC-DC conversion circuit from a DC voltage obtained by rectifying a commercial power supply, a pulse period generation circuit that generates pulses with a predetermined period, and pulses of the pulses generated by the pulse period generation circuit. A pulse width variable circuit that changes the width. A beating tool drive circuit comprising: a control circuit that applies a DC voltage generated by the power supply port and path to the solenoid coil based on an output pulse signal from the variable pulse width circuit.