JP2561989B2 - Safety device for hair washing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention is provided in a hairdressing salon and stores shampoo balls for washing hair in an upright state. After opening the door, the shampoo balls are laid down. The present invention relates to a device, and more particularly, to a safety device therefor.

[0002]

2. Description of the Related Art Conventionally, in a hair washing device as described above, opening and closing of a door and ups and downs of a shampoo ball are performed by utilizing the power of a plurality of motors. As described above, in the hair washing device that opens and closes the door and raises and lowers the shampoo ball by using the power of the plurality of motors, first, the first motor is operated to open the door, and then the first motor is stopped.

Next, the second motor is operated to lay down the shampoo ball, and then the second motor is stopped.
Then, after shampooing the hair using the shampoo ball, the second motor is operated to erect the shampoo ball, and then the second motor is stopped. Further, the first motor is operated to close the door, and then the first motor is stopped. It should be noted that the first and second motors are configured so as not to be injured even if a hand or the like is caught when closing the door or raising the shampoo ball without using a motor having a driving force larger than necessary. .

[0004]

Although the conventional hair washing device is configured as described above, it does not have a function of forcibly stopping the first or second motor when a hand or the like is caught. It was Therefore, when the user leaves the hair washing device without knowing that the object has been caught, the first or second motor continues to operate, and the first or second motor is operated.
Could damage the motor.

Further, in order to further secure safety, a clutch mechanism or the like for releasing the transmission of power when an overload is applied must be provided, so that there is a disadvantage that the structure becomes complicated. The present invention has been made to solve the above-described inconvenience, and provides a safety device for a hair washing device that can prevent the first or second motor from being damaged in an abnormal state with a simple configuration. It is a thing.

[0006]

A safety device in a hair washing device according to the present invention operates a first motor to operate a first motor to open a door and then stop the first motor. The second motor is actuated to cause the shampoo ball to lie down, and the second motor is stopped by detecting that the shampoo ball has turned to the laid position, or the second motor is actuated to move the shampoo ball. In a hair washing device which stops a second motor after standing up, operates a first motor to close a door, detects that the door has moved to a closed position, and stops the first motor , If operation is started based on the operation signal from the operation section and the shuffle signal that the shampoo ball has rotated to the down position or the door has moved to the closed position within the set time has not been supplied. , Re A timer circuit for outputting a Tsu preparative signal provided, the timer circuit outputs a reset signal is obtained by a structure for stopping the first or second motor.

[0007]

In the hair washing device according to the present invention, the safety device stops the first or second motor when the timer circuit outputs the reset signal.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a front view showing a state where a door of a hair washing device to which an embodiment of the present invention is applied is closed, FIG. 2 is a front view showing a state where a door of the hair washing device is opened, and FIG. 3 is a shampoo ball of the hair washing device. It is a side view which shows the state which was made to lie down. Figure 1
In FIG. 3, reference numeral 1 is a housing constituting the hair washing device, 2 is a door for moving the front surface of the housing 1 in the left-right direction, and 3 is a mirror provided on the front surface of the door 2.

Reference numeral 4 denotes a shampoo ball mounted in a recess formed in the housing 1 so as to be capable of undulating, and is hidden when the door 2 is moved to the closed position (the position shown in FIG. 1) and the door 2 is opened. It is exposed while being moved to the position (the position shown in FIG. 2). Reference numeral 5 indicates a first motor for opening and closing the door 2, and 6 indicates a second motor for raising and lowering the shampoo ball 4. Reference numeral 9 denotes a foot switch as an operation unit, which outputs an operation signal (pulse signal) each time it is operated.
A drive mechanism for opening and closing the door 2 by the first motor 5 and a hoisting mechanism for hoisting the shampoo ball 4 by the second motor 6 are not shown.

FIG. 4 is a circuit diagram showing a part of the structure of a safety device for a hair washing device according to an embodiment of the present invention, and FIG. 5 is a part of the structure of a safety device for a hair washing device according to an embodiment of the present invention. It is a block diagram showing. In FIG. 4 or 5, reference numeral 7 indicates a first limit switch as a closing detection sensor whose output is switched by moving the door 2 to the closing position.
When the door is in the closed position, it is in the operating (ON) state and outputs the closing signal (high level signal). When the door 2 starts to open, it is in the non-operating (OFF) state and is in the non-closing signal. (Low level signal) is output.

Numeral 8 indicates a position where the shampoo ball 4 lies down (see FIG. 2).
The position shown in Fig. 3, the position shown by the two-dot chain line in Fig. 3) shows the second limit switch as a fall detection sensor whose output is switched by rotation, and the shampoo ball 4 rotates to the fall position. Then, the shampoo ball 4 is activated (on) and outputs a fall signal (high level signal).
Is the direction from the down position to the up and down position (the position shown by the solid line in Fig. 3)
When it starts to rotate, it becomes a non-operation (OFF) state and outputs a non-destructive signal (low level signal).

Reference numeral 10 is a commercial frequency power source, 11 is a fuse, 12 is a first relay, and 13 is a second relay.
14 is each contact point 14a, by moving the door 2 to the open position,
The third as an open detection sensor for switching the state of 14b
Is connected to one end of the power source 10 via the normally open contact 12a of the first relay 12 and the fuse 11, and the normally open contact 14a causes the second motor 6 to move in the direction of the fall position of the shampoo ball 4. The normally-closed contact 14b is connected to a terminal for rotating the first motor 5 and is connected to a terminal for rotating the first motor 5 toward the open position of the door 2.

Reference numeral 15 denotes a fourth limit switch as an upright detection sensor, which switches the states of the contacts 15a and 15b by the rotation of the shampoo ball 4 to the upright position,
The normally open contact 13a and the fuse 11 of the second relay 13
Connected to one end of the power source 10, the normally open contact 15a is connected to a terminal for rotating the first motor 5 toward the closed position of the door 2, and the normally closed contact 15b connects the second motor 6 to the shampoo ball. 4 is connected to a terminal for rotating the 4 in the standing position direction. The other terminal of the first motor 5 is connected to the other end of the power supply 10 via a current adjusting circuit 16 for selecting a current value for moving the door 2 smoothly, and the other terminal of the second motor 6 is connected. The other terminal is connected to the other end of the power supply 10.

Reference numeral 17 is a transformer, 18 is a rectifier circuit for converting the alternating current stepped down by the transformer 17 into direct current, and 19 is a power supply circuit for obtaining the voltages V _DD and V _Ry from the output of the rectifier circuit 18. 20 is the first and second limit switches 7, 8
3 shows a first OR circuit that receives the output of the input. Reference numeral 21 denotes a first JK flip-flop as an output inverting circuit,
The voltage V _DD is applied to the input terminals J and K, the output of the foot switch 9 is supplied to the clock input terminal CR, and the output of the second OR circuit 22 is supplied to the reset terminal R.

Reference numeral 22 denotes a second OR circuit, to which the outputs of the first OR circuit 21, the timer circuit 23 and the reset circuit 24 are supplied. Reference numeral 23 denotes a timer circuit, which is set or reset by the output of the output terminal Q of the first JK flip-flop 21, and after being set, a set time, for example, a time slightly longer than the time when a series of operations is completed in a normal state. After a lapse of time, a reset signal (high level signal) is output to the second OR circuit 22, and a non-reset signal (low level signal) is output otherwise.

Reference numeral 24 denotes a reset circuit, which sets the voltage V _DD of the power supply circuit 19 to the ground potential when a power failure occurs, and sets the first and second JK flip-flops 21 and 29 to the initial state when the power failure is restored. It outputs a reset signal (high level signal) for resetting, and outputs a non-reset signal (low level signal) otherwise. 25 is a first inverter circuit that inverts the output of the first limit switch 7, 26 is a first resistor that pulls up the output terminal of the first inverter circuit 25, and 27 is a second resistor.
Is a second inverter circuit for inverting the output of the limit switch 8 and 28 is a second resistor for pulling up the output end of the second inverter circuit 27.

Reference numeral 29 denotes a second JK flip-flop, the input terminal J is connected to the connection point between the second inverter circuit 28 and the second resistor 28, and the input terminal K is connected to the first inverter circuit 25 and the first inverter circuit 25. 1 is connected to the connection point with the resistor 26, the clock input terminal CR is connected to the output terminal Q of the first JK flip-flop 21, and the reset terminal R is supplied with the output of the reset circuit 24. Reference numeral 30 denotes a first AND circuit, to which outputs from the output terminals Q of the first and second JK flip-flops 21 and 29 are supplied.

Reference numeral 31 denotes a third inverter circuit that inverts the output of the first AND circuit 30, and the first relay 12 is connected to the output terminal. Reference numeral 32 denotes a second AND circuit, which outputs the output terminal Q of the first JK flip-flop 21 and the output terminal Q ^* (Q ^* means inversion of Q) of the second JK flip-flop 29. Is being supplied. Reference numeral 33 indicates a fourth inverter circuit that inverts the output of the second AND circuit 30, and the second relay 13 is connected to the output terminal. The control unit as a control unit is composed of the first and second relays 12 and 13 and the first OR circuit 20 to the fourth inverter circuit 33.

Next, the operation will be described. The door 2
When the initial state is a state in which the shampoo ball 4 is closed and the shampoo ball 4 is upright, the first limit switch 7 outputs a closing signal and the second limit switch 8 outputs a non-falling signal. Since the limit switch 15 of No. 4 is in the operating state, the states of the contacts 15a and 15b are switched. When the foot switch 9 is operated in this state, an operation signal is output, so that the output terminal Q of the first JK flip-flop 21 changes from a low level signal (first output signal) to a high level signal (second output). Signal), the timer circuit 23 is set and the output terminal Q of the second JK flip-flop 29 changes from a low level signal to a high level signal.

Then, the output of the first AND circuit 30 becomes a high level signal, the first relay 12 is excited, and the first motor 5 operates so as to move the door 2 toward the open position. The door 2 starts moving toward the open position. When the door 2 starts moving from the closed position toward the open position in this way, the first limit switch 7 becomes inactive, so that the first limit switch 7 outputs a non-closed signal.

Next, when the door 2 moves to the open position, the third
Since the state of each contact point 14a, 14b of the limit switch 14 is switched, the first motor 5 stops, and the second motor 6 operates so as to rotate the shampoo ball 4 in the lying position direction. The ball 4 starts to rotate in the down position direction. When the shampoo ball 4 starts to rotate from the upright position to the down position in this way, the fourth limit switch 15 is deactivated and the states of the contacts 15a and 15b are switched.

When the shampoo ball 4 is rotated to the laid-down position, the second limit switch 8 is activated, and the second limit switch 8 outputs a laid-down signal. Therefore, the first JK flip-flop is used. 21 is reset, the output of the output terminal Q changes from a high level signal to a low level signal, and the timer circuit 23 is reset. Therefore, the output of the output terminal Q of the second JK flip-flop 29 changes from the high level signal to the low level signal,
The output of the AND circuit 30 becomes a low level signal
Since the relay 12 is de-excited, the second motor 6 stops.

As described above, the shampoo ball 4 is
Operate the foot switch 9 while rotating to the down position.
If you do, the operation signal is output, so the first JK free
The output terminal Q of the flip-flop 21 is driven from the low level signal.
Since it is inverted to a level signal, the timer circuit 23 is set
Output terminal Q of the second JK flip-flop 29 ^*
Changes from a low level signal to a high level signal.

Then, the output of the second AND circuit 32 becomes a high level signal, the second relay 13 is excited, and the second motor 6 operates so as to rotate the shampoo ball 4 in the standing position direction. Therefore, the shampoo ball 4 starts to rotate in the standing position direction. When the shampoo ball 4 starts to rotate in the upright position direction in this way, the second limit switch 8 is deactivated, so that the second limit switch 8 outputs a non-falling signal.

Next, when the shampoo ball 4 is rotated to the standing position, each contact 15 of the fourth limit switch 15 is moved.
Since the states of a and 15b are switched, the second motor 6 is stopped, the first motor 5 operates to move the door 2 toward the closing position, and the door 2 moves toward the closing position. To start. When the door 2 starts to move from the open position toward the closed position in this way, the third limit switch 14 becomes inactive, and the states of the contacts 14a and 14b are switched.

When the door 2 is moved to the closed position, the first limit switch 7 is activated, so that the first limit switch 7 outputs a close signal. Therefore, the first JK flip-flop 21 Is reset and output terminal Q
Output changes from a high level signal to a low level signal, and the timer circuit 23 is reset. Therefore, the second J
The output of the output terminal Q ^* of the K flip-flop 29 changes from a high level signal to a low level signal, the output of the second AND circuit 32 changes to a low level signal, and the second relay 13
Is de-excited, the first motor 5 stops.

Since the above-mentioned operation is a normal operation, next, an abnormal operation in which an object is caught in the process of closing the door 2 will be described. Under this condition, a high level signal is supplied to the input terminals J and K of the second JK flip-flop 29, the output terminal Q ^* is outputting a high level signal, and the first motor 5 is the door. 2 is moving to the closed position direction. In this situation,
Before the first limit switch 7 operates, the timer circuit 2
When the set time of 3 has elapsed, the first JK flip-flop 21 is reset, the output of the output terminal Q changes from a high level signal to a low level signal, and the timer circuit 23 is reset.

Therefore, the output of the second AND circuit 32 becomes a low level signal and the second relay 13 is de-energized, so that the first motor 5 is stopped. At this time, the second
The output of the output terminal Q ^* of the JK flip-flop 29 is kept at the high level signal. In this way, the first motor 5
If you operate the foot switch 9 when the
Since the operation signal is output, the output terminal Q of the first JK flip-flop 21 inverts from the low level signal to the high level signal, so that the timer circuit 23 is set and the second
The output terminal Q of the JK flip-flop 29 changes from a low level signal to a high level signal.

Then, the output of the first AND circuit 30 becomes a high level signal, the first relay 12 is excited, and the first motor 5 operates so as to move the door 2 toward the open position. The door 2 starts rotating toward the open position. Therefore, the object sandwiched by the doors 2 can be taken out. It should be noted that the foot switch 9 can also be operated to operate in the same manner as each part. Also, the door 2
When the set time of the timer circuit 23 elapses during the process of opening the door, the process of lying down the shampoo ball 4 or the process of standing up the shampoo ball 4, it is determined that an object is sandwiched by the door 2 described above. Same behavior.

[0030]

As described above, according to the present invention, the operation is started based on the operation signal from the operation portion, and the shampoo ball turns to the down position within the set time, or the down signal or the door. When the closing signal that is moved to the closing position is not supplied, a timer circuit that outputs a reset signal is provided, and when the timer circuit outputs the reset signal, the first or second motor is stopped. The first or second motor can be stopped when an abnormality occurs. Therefore, with a simple configuration, it is possible to prevent the first or second motor from being damaged during an abnormality.

[Brief description of drawings]

FIG. 1 is a front view showing a state in which a door of a hair washing device to which an embodiment of the present invention is applied is closed.

FIG. 2 is a front view showing a state where a door of the hair washing device is opened.

FIG. 3 is a side view showing a state in which a shampoo ball of the hair washing device is laid down.

FIG. 4 is a circuit diagram showing a part of the configuration of a safety device for a hair washing device that is an embodiment of the present invention.

FIG. 5 is a block diagram showing a part of the configuration of a safety device for a hair washing device that is an embodiment of the present invention.

[Explanation of symbols]

 1 Case 2 Door 3 Mirror 4 Shampoo Ball 5 First Motor 6 Second Motor 7 First Limit Switch 8 Second Limit Switch 9 Foot Switch 12 First Relay 13 Second Relay 14 Third Limit Switch 15 Fourth Limit Switch 16 Current Adjusting Circuit 20 First OR Circuit 21 First JK Flip-Flop 22 Second OR Circuit 23 Timer Circuit 24 Reset Circuit 25 First Inverter Circuit 26 First Resistor 27 Second Inverter circuit 28 second resistance 29 second JK flip-flop 30 first AND circuit 31 third inverter circuit 32 second AND circuit 33 fourth inverter circuit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-14844 (JP, A) JKH 6-14645 (JP, Y2) JKH 7-40322 (JP, Y2)

Claims (1)

(57) [Claims] 1. A first motor is operated by operating an operating portion to open a door, and then the first motor is stopped, and a second motor is operated to lay down a shampoo ball. , The second motor is stopped by detecting that the shampoo ball has rotated to the lying position, or the second motor is activated to raise the shampoo ball, and then the second motor is turned on. In the hair-washing device, which stops the first motor by operating the first motor to close the door and detecting that the door has moved to a closed position, The operation is started based on the operation signal of, and if the falling signal that the shampoo ball has rotated to the falling position or the closing signal that the door has moved to the closing position is not supplied within the set time, A timer circuit for outputting a Tsu preparative signal provided, when the timer circuit outputs a reset signal, the first
Alternatively, the safety device for the hair washing device is characterized in that the second motor is stopped.