JPH0379026B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention generates an arc between the tips of a carbon electrode rod that is held movably toward and away from a pair of supporting members, and irradiates the affected area with this arc light. The present invention relates to a carbon lamp treatment device for treatment.

(Prior Art) Conventionally, a carbon lamp treatment device that generates an arc between the tips of a carbon electrode rod that is movably held by a pair of support members and irradiates the affected area with the arc light is widely known. For example, Mikoaki
It is disclosed in Japanese Patent Application Laid-Open No. 54-5600 or Japanese Patent Application Laid-Open No. 145187-1987.

In the phototherapy device disclosed in Japanese Utility Model Publication No. 54-5600, both carbon rods installed facing each other are moved by rotating a feed shaft so that their tips abut each other, and then both carbon rods are moved. When the two carbon rods are separated by rotating the feed shaft in the opposite direction while a current is flowing between the carbon rods, an arc is generated between the tips of the carbon rods.

However, in the phototherapy device shown in Japanese Utility Model Publication No. 54-5600, the carbon rod is moved by rotating a feed ring connected to the carbon rod, and the carbon rod and the feed ring are connected to each other. When the state of friction with the ring changes, the amount of movement of the carbon rod also changes. In other words, if the carbon rod starts to slip on the feed ring, the carbon rod will not move even if the feed ring is rotated. In other words, in this conventional phototherapy device, if one of the carbon rods does not move properly, the arc generation point shifts to the carbon rod that does not move, and if both carbon rods do not move properly, both carbon rods Unable to get the sticks close together,
This may result in the inability to generate an arc.

On the other hand, in the skin disease treatment device disclosed in Japanese Patent Application Laid-Open No. 51-145187, a handle is attached to one end of a threaded rod with left and right threads formed around a specified arc generation location. By rotating the electrode support member screwed into the threaded rod, the electrode support member is moved, and the carbon rod fixed to the electrode support member is moved. Therefore, in this skin treatment device, unlike the phototherapy device disclosed in the above-mentioned Japanese Utility Model Publication No. 54-5600, the carbon rod does not slip and become unable to move properly. However, even in this skin treatment device, the threaded rod and the electrode support member may not mesh well, and as a result, the carbon rod may not be able to be moved, making it impossible to generate an arc.

Furthermore, not only this skin treatment device, but also carbon lamp treatment devices that generate an arc between the tips of carbon rods, generally cause the tips of the carbon rods to wear out little by little as the arc is generated. There are subtle differences in the degree of wear and tear for each carbon rod, and repeated use causes one of the carbon rods to wear out on one side, causing the arc generation location to shift.

(Problems to be solved by the invention) As mentioned above, in the case of the conventional carbon lamp treatment device,
Despite the fact that the arc generation location may shift or the arc may not be generated, no means is provided to confirm whether or not the arc is generated normally. Therefore, users, etc. must always visually confirm that the arc has been generated reliably and that the arc generation point is in the specified position, and if they fail to do so, In this case, the location where the arc occurs is shifted and the location where the arc occurs, which generates intense heat, approaches one of the power supply sections, which may cause thermal damage to the power supply section. Also,
Even though the carbon rod cannot move normally and arc cannot be generated, there is a high risk that voltage will continue to be applied between both carbon electrode rods, which will cause the carbon lamp treatment device to malfunction. .

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to cut off the current to the carbon electrode rod when the arc generation point shifts or when it is impossible to generate an arc, and to disconnect the current from the main body of the power supply section. It is an object of the present invention to provide a carbon lamp treatment device with a simple configuration and equipped with a safety mechanism capable of preventing heat disorders and the like.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the means adopted by the present invention are as follows. A carbon lamp treatment device that generates an arc and irradiates the affected area with the arc light, which comprises a light guide section that is provided approximately at the center of the reflector and opens opposite to a specified arc generation location. A safety mechanism is constituted by a light receiving sensor provided on the rear end side of the light guide and a circuit breaker that cuts off electricity to the carbon electrode rod, and the light receiving sensor receives light through the light guide. A carbon lamp treatment device equipped with a safety mechanism, characterized in that the circuit breaker is configured to be inactive when arc light is being sensed, and to be activated at other times. .

(Action of the invention) By the present invention taking the above-mentioned means,
It has the following effects.

A light guide section provided approximately at the center of the reflector and opening facing a specified arc generation point, a light receiving sensor provided at the rear end of the light guide section, and the carbon electrode bar are cut off from energizing. By providing a safety mechanism consisting of a circuit breaker, the circuit breaker cuts off current supply to the carbon electrode rod when arc light is not generated in the normal position.

In other words, the light guiding section guides the arc light to the light receiving sensor only when the arc light is generated in the normal position, and in the following cases where the arc light is not detected by the light receiving sensor, the carbon electrode rod is not energized. It is cut off by a circuit breaker. This arc light is not detected by the light receiving sensor when the arc generation point is shifted from the specified position, when the carbon electrode rod breaks during arc generation and the arc generation is interrupted, when the carbon electrode This is the case when the arc does not occur because the rod does not move properly, or when the arc does not occur because the carbon electrode rod is not attached.

(Example) Hereinafter, the present invention will be described in detail according to an example shown in the drawings.

The figure shows an embodiment of a carbon lamp treatment device 100 according to the present invention, and is a carbon lamp treatment device 100 in which movement of a carbon electrode rod 11, that is, generation of an arc, is automated by a drive motor 12.

The carbon lamp treatment device 100 consists of a torch body 10, a support 20, and a base 30, and the torch body 10 is attached to the base 30 via the support 20, which is extendable and retractable by operating a lock lever 21. Further, the torch main body 10 is attached to a column 20 so as to be tiltable, so that the angle of irradiation to the affected area can be adjusted.

Inside the torch body 10, a pair of carbon electrode rods 11 are provided.
is supported by a power supply part 13 which also serves as a support member so as to be able to come and go freely, and the power supply part 13 is connected between both carbon electrode rods 11.
Commercial AC voltage is applied through a cable connected to the The power supply section 13 is fixed to an insulating member 15 that is vertically movably attached via a spring 14 in a support case fixed to the torch body 10 by an arm.

Further, a feed roller 16 is placed on both carbon electrode rods 11.
are arranged so as to be in contact with the carbon electrode rods 11, respectively, and both carbon electrode rods 11 sandwiched between the feed roller 16 and the power supply section 13 are arranged so as to contact the carbon electrode rods 11, respectively.
It is designed to move by rotating. The feed roller 16 is connected via a gear to the rotating shaft of a motor 12 fixed to the torch body 10 and capable of forward and reverse rotation. In order to effectively radiate the arc light generated between the carbon electrode rods 11, a reflector 17 is installed to surround the arc generation location, and approximately at the center of this reflector 17, a prescribed arc generation location ( A light guiding section 19 is provided which opens to face the central portion of the reflecting mirror 17 (in front of the central portion of the reflecting mirror 17), and a light receiving sensor 18 is disposed at the rear end side of the light guiding section 19. In addition to the cylindrical body shown in FIGS. 1 and 2, the light guide 19 may also be configured with a plurality of slits as shown in FIG. There are no limitations on its shape, etc., as long as it reliably guides the light to the light receiving sensor 18.

Next, the operation of the carbon lamp treatment device 100 will be explained based on FIG. 7.

When you press the start switch, both carbon electrode rods 11
When a voltage is applied between them and at the same time the motor 12 starts to rotate forward, the feed roller 16 connected to this motor 12 rotates, and both carbon electrode rods 1
1 begins to move in the direction where the tips come into contact with each other. Further, a timer 40 is started to measure the elapsed time from the time when the main body of the carbon lamp treatment device 100 is started. In this embodiment, the carbon electrode rod 11 is automatically moved by the motor 12, and the amount of movement of the carbon electrode rod 11 is always constant during normal operation. In order to do this, the amount of movement of the carbon electrode rod 11, assuming that the carbon electrode rod 11 is moving normally, is calculated based on the elapsed time from the start of the carbon lamp treatment device 100 main body. It is configured. In the case of a manual carbon lamp treatment device, a counter or the like that counts the number of rotations of the feed roller may be used instead of the timer 40.

At this time, although a voltage is applied between both carbon electrode rods 11, since both carbon electrode rods 11 are not in contact with each other, no current flows. When both carbon electrode rods 11 move and their tips come into contact with each other, a current flows through both carbon electrode rods 11, and both carbon electrode rods 11
The voltage between the Due to this change in voltage, the detection unit 50 detects that the tips of the carbon electrode rods 11 are in contact with each other.

The motor 12 is reversed by a signal from the detection unit 50, and the feed roller 16 is rotated in the opposite direction, so that both carbon electrode rods 11 begin to move apart, and when a gap is created between both carbon electrode rods 11, an arc is generated. . When an arc occurs, the current flowing through both carbon electrode rods 11 decreases, and the voltage between both carbon electrode rods 11 increases. Due to this change in voltage, the detection section 50 detects the occurrence of an arc, and sends a signal to the circuit breaker 60. At this time, if the arc is generated at a specified arc generation location, the arc light will be transmitted to the light guide section 1.
The light enters the light receiving sensor 18 through the arc light, and the light receiving sensor 18 which senses the arc light sends a signal to the circuit breaker 60.

In the circuit breaker 60, when a signal indicating that an arc has occurred is sent from the detection unit 50, the light receiving sensor 18
If the light receiving sensor 18 detects arc light at a specified arc generation location, it does not operate and continues supplying power to the carbon electrode rod 11. If the arc light is not detected at the arc generation point (that is, if the arc generation point is shifted from the specified arc generation point as shown in Figure 4), or if the
As shown in the figure, if the carbon electrode rod 11 breaks during arc generation and the generation of the arc is interrupted, etc.), the power supply to the carbon electrode rod 11 is interrupted. Also,
In the circuit breaker 60, when a signal is sent from the timer 40 indicating that a predetermined time (that is, the time during which an arc must be generated if the carbon electrode rod 11 is moving normally) has passed, the light receiving sensor is activated. If the occurrence of an arc is not detected by the carbon electrode rod 11 as shown in FIG.
The current supply to the carbon electrode rod 11 is also cut off when the carbon electrode rod 11 does not move properly and no arc is generated, or when the carbon electrode rod 11 is not attached and no arc occurs, etc.).

(Effects of the Invention) As described above, according to the carbon lamp treatment device equipped with the safety mechanism according to the present invention, when the arc generation location deviates from the specified arc generation location, or when arc generation is impossible, the Since the power supply to the carbon electrode rod is cut off immediately, thermal damage to the power supply section can be prevented without the user or the like visually confirming it. In addition, since visual confirmation is not required, even if the movement of the carbon electrode rod is automated using a motor, etc., it is possible to prevent thermal damage to the power supply unit body.
We can provide a safe carbon light treatment device.

[Brief explanation of drawings]

FIG. 1 is a partial vertical sectional view showing an embodiment of the carbon lamp treatment device equipped with a safety mechanism according to the present invention, FIG. 2 is a partial cross sectional view of the carbon lamp treatment device shown in FIG. 1, and FIG. A partial cross-sectional view showing another embodiment of a carbon lamp treatment device equipped with a safety mechanism according to the present invention, FIGS. 4 to 6 are partial cross-sectional views showing a case where the carbon electrode rod is not fed properly, and FIG. is the block diagram of the carbon lamp treatment device in Figure 1, and Figure 8.
This figure is a perspective view showing the entire carbon lamp treatment device of FIG. 1. Explanation of symbols, 100...Carbon lamp treatment device equipped with safety device, 10...Torch body, 11...Carbon electrode rod, 12...Motor, 13...Power supply unit, 14...
... Spring, 15 ... Insulating member, 16 ... Feed roller, 17 ... Reflector, 18 ... Light receiving sensor,
19...Light guiding section, 20...Strut, 21...Lock lever, 30...Base, 40...Timer,
50... Detection unit 50, 60... Circuit breaker.

Claims (1)

[Scope of Claims] 1. A carbon lamp treatment device that generates an arc between the tips of a carbon electrode rod that is movably held by a pair of supporting members and irradiates the affected area with the arc light to treat the affected area. , a light guiding portion provided approximately in the center of the reflecting mirror and opening facing a prescribed arc generation location, a light receiving sensor provided at the rear end side of this light guiding portion, and a current supply to the carbon electrode rod. A safety mechanism is configured by a circuit breaker that interrupts the circuit breaker, and when the light receiving sensor detects the arc light entering through the light guide section, the circuit breaker is set to a non-operating state, and at other times, the circuit breaker is set to a non-operating state. A carbon lamp therapy device equipped with a safety mechanism, characterized in that it is configured to be activated.