JP4162634B2 - Permanent equipment - Google Patents

Description

  The present invention relates to an improvement of a permanent device used in a beauty salon, and more specifically, to an improvement in temperature control of a permanent device for performing treatment by winding an electric heating rod incorporating a heating member around the hair.

JP 2003-102534 A

Conventionally, there is a permanent device used in a beauty salon or the like that uses an electric heating rod.
This electric heating rod has a built-in heating member such as a heater that generates heat when connected to a power supply. Deformation processing such as wave formation can be performed.
An electric cord is connected to the electric heating rod, and electric power is supplied from a power source provided in a permanent device main body having a box shape or the like. An example of this is shown in Patent Document 1.

  The heating member is on / off controlled so as not to damage the hair wound around the electric heating rod due to overheating. This on / off control has conventionally been provided with a dummy electric heating rod in the main body of the permanent device, and by energizing the dummy electric heating rod, the temperature of the outer surface of the electric heating rod is measured by a sensor or the like, and the temperature is used as a reference. The electric heating rod connected to the permanent device body and wound around the hair was collectively controlled on and off.

However, since the dummy electric heating rod and the electric heating rod actually wrapped around the hair differ in the environment related to heat dissipation, the temperature of the dummy electric heating rod can only be controlled with low accuracy. In addition, since the plurality of electric heating rods around the hair are all controlled uniformly, especially when a small-diameter electric heating rod and a large-diameter electric heating rod are used at the same time, this conventional uniform In the on / off control, the hair could not be treated uniformly due to the temperature difference generated by the different diameters of the electric heating rods.
The above-mentioned problems were also present in the permanent device described in Patent Document 1.

  In order to solve the above problem, the applicant of the present application uses a sensor rod provided with a sensor for sensing the temperature of the outer periphery of the electric heating rod in a part of the electric heating rod for actually winding the hair. The idea was to control the permanent device. This is different from the control using a conventional dummy electric heating rod, because the sensor rod measures the temperature of the outer circumference of the rod where the hair is actually wound. Can be used safely.

Here, in the actual treatment, the hair is wound around the outer periphery of the electric heating rod, and a liquid agent such as a curling agent, a treatment agent or a perm liquid is applied. When it is not possible, or when the liquid is insufficient due to drying, the liquid may be reapplied during the treatment.
However, when the liquid agent is reapplied in this way, the temperature of the outer peripheral portion of the electric heating rod decreases due to the applied liquid agent, whereas the heating member such as a heater existing inside the electric heating rod remains high in temperature. In some cases, a temperature difference may occur between the outer periphery and the inside. In this state, the temperature sensed by the sensor is the temperature of the outer peripheral portion in such a lowered state, so if the heat generating member is heated accordingly, an abnormal overheating state occurs. Depending on the case, the heat generating member may be burned out, which is dangerous.

The present invention has been invented in order to solve the above-described problems, and an object of the present invention is to provide a permanent device that can appropriately control the temperature of an electric heating rod around which hair is wound.
It is another object of the present invention to provide a permanent device that does not cause abnormal overheating of the heat generating member due to a temperature difference between the outer peripheral portion and the inside of the electric heating rod as described above.

In order to solve the above-mentioned problems, the invention according to claim 1 of the present application can perform deformation processing such as wave formation on the hair by wrapping the hair of the person to be treated around the electric heating rod 1 and heating it. In the perm apparatus, the electric heating rod 1 is sealed with a hollow cylindrical member 11 sealed to the extent that moisture can be prevented from entering inside, and the cylindrical member 11 is maintained waterproof from the outside and supplied from the outside. The inner surface 12 of the cylindrical member 11 or the outer sensor 5 that can sense the temperature outside the inner peripheral surface 12; an inner sensors 8 which can sense the temperature, the heat-generating member 2, the outer sensors 5, der that a connection plug (3) connected to each of the inner sensors 8, the permanent device circuit The circuit-breaking means has a heat-dissipating member 2 when the temperature sensed by the inner sensor 8 exceeds a preset value regardless of the temperature sensed by the outer sensor 5. Provided is a permanent device characterized by performing an operation of restricting energization of the battery .
Here, “inside the inner peripheral surface 12 of the cylindrical member 11” does not include the inner peripheral surface 12. In addition, in the present application, the inner sensor 8 includes not only a sensor for sensing temperature but also a sensor having a function of sensing other temperatures and controlling other devices.

Further, the invention according to claim 2 of the present application is the above-mentioned electric heating in a permanent device capable of performing a deformation process such as wave formation on the hair by winding the subject's hair around the electric heating rod 1 and heating it. As the rod 1 , a heating rod 1a and a sensor rod 1b having a hollow cylindrical member 11 sealed to the extent that moisture can be prevented from entering therein are used, and the inside of the heating rod 1a The heating member 2 that can heat the cylindrical member 11 by the current supplied from the outside of the rod, and the inner sensor 8 that can sense the temperature inside 14 from the inner peripheral surface 12 of the cylindrical member 11. In the sensor rod 1b, the inner surface 12 of the cylindrical member 11 or the outer sensor 5 that can sense the temperature outside the inner surface 12 and the heating rod 1 are provided. The permanent heating device 2 includes a power input unit 61, a voltage drop unit 62, a control unit 63, and a switching element 64, and includes a power input. The unit 61 is for supplying a current to the heating member 2 of the electric heating rod 1, and the voltage drop unit 62 can supply the current supplied from the power input unit 61 to the heating member 2 of the electric heating rod 1. As described above, the control unit 63 receives the temperature signal generated by the sensor 5 for the outside of the sensor rod 1b and issues an on / off command to the switching element 64. The switching element 64 turns on and off the current to the heat generating member 2 of the electric heating rod 1, and a plurality of heating rods 1a are combined with one sensor rod 1b. For each controlled rod group X, the on / off control of the heating member 2 of each electric heating rod 1 is performed by the control unit 63, and the temperature sensed by the inner sensor 8 is set in advance. Provided is a permanent device characterized in that energization of the heat generating member 2 is restricted when the value is exceeded.

  In the invention according to claim 3 of the present application, the inner sensor 8 is provided in the middle of the circuit 4 a for energizing the heat generating member 2 inside the electric heating rod 1. 3. A bimetal thermostat is used, wherein the circuit 4a is cut off when the temperature detected by the sensor 8 exceeds a preset value. The perm apparatus described in 1. is provided.

In addition, the invention according to claim 4 of the present application is directed to a permanent heating apparatus in which a subject's hair is wound around the electric heating rod 1 and heated to perform a deformation process such as wave formation on the hair. 1 is a hollow cylindrical member 11 that is sealed to the extent that moisture can be prevented from entering inside, and the cylindrical member 11 maintains waterproofness from the outside, and heat is generated by an electric current supplied from the outside. The member 2, the inner peripheral surface 12 of the cylindrical member 11 or an outer sensor 5 that can sense the temperature outside the inner peripheral surface 12, and the inner sensor that can sense the temperature inside 14 from the inner peripheral surface 12 of the cylindrical member 11. A sensor 8 and a connecting plug 3 connected to each of the heat generating member 2, the outer sensor 5, and the inner sensor 8 are provided, and the permanent device has an abnormal overheat preventing means. Thus, the abnormal overheat prevention means energizes the heat generating member 2 when the difference between the temperatures detected by the outer sensor 5 and the inner sensor 8 becomes an abnormal value exceeding a preset value. Provided is a permanent device characterized by performing a restricting operation.

In addition, the invention according to claim 5 of the present application is the above-mentioned electric heating in a permanent device capable of performing a deformation process such as wave formation on the hair by winding the subject's hair around the electric heating rod 1 and heating it. As the rod 1 , a heating rod 1a and a sensor rod 1b having a hollow cylindrical member 11 sealed to the extent that moisture can be prevented from entering therein are used, and the inside of the heating rod 1a Is provided with a heat generating member 2 that can heat the cylindrical member 11 by a current supplied from the outside of the rod, and the inner peripheral surface 12 or the inner peripheral surface 12 of the cylindrical member 11 is provided inside the sensor rod 1b. An outside sensor 5 that can sense the temperature outside, an inside sensor 8 that can sense the temperature inside 14 from the inner peripheral surface 12 of the cylindrical member 11, and the heating rod 1a. The permanent heating apparatus 2 includes a power input unit 61, a voltage drop unit 62, a control unit 63, and a switching element 64. The power input unit 61 includes an electric heating rod. The voltage drop unit 62 supplies an electric current to the heat generating member 2 of the electric heating rod 1 so that the current supplied from the power input unit 61 can be supplied to the heat generating member 2. The control unit 63 receives a temperature signal generated by the sensor 5 for the outside of the sensor rod 1b and issues an on / off command to the switching element 64. The switching element 64 is electrically heated. The rod 1 is used to turn on and off the current to the heat generating member 2, and a controlled rod group X in which a plurality of heating-only rods 1a are combined with one sensor rod 1b. In addition, on / off control of the heating member 2 of each electric heating rod 1 is performed by the control unit 63, and the temperature difference sensed by the outer sensor 5 and the inner sensor 8 is detected by the control unit 63. When an abnormal value exceeding a preset value becomes an abnormal value, the energization of the heating member 2 of each electric rod 1 in the abnormally controlled rod group Xt in which the sensor rod 1b having the abnormal value exists is restricted. There is provided a permanent device including an abnormal overheat preventing means 63b for the purpose.

In the invention according to claim 6 of the present application, the abnormal overheat prevention means 63b senses the difference between the temperature sensed by the outside sensor 5 of each sensor rod 1b and the temperature sensed by the inside sensor 8. When the temperature difference sensed by the temperature difference sensing means 63b1 and the temperature difference sensing means 63b1 becomes an abnormal value exceeding a preset value, an abnormality exists in the sensor rod 1b having the abnormal value. The perm apparatus according to claim 5 , wherein the switching element 64t corresponding to the controlled rod group Xt is provided with command means 63b2 for issuing an energization-off command.

Further, in the invention according to claim 7 of the present application, the inner sensor 8 is coated with a substance serving as both a heat insulating material and an insulating material so that the inner sensor 8 does not malfunction due to direct contact with the heat generating member 2. A permanent device according to any one of claims 1 to 6 is provided.
Here, the “coating” includes a case where the inner sensor 8 is covered with a space between the inner sensor 8 and the substance to be coated.

  In the invention according to claim 1 of the present application, by providing the electric heating rod 1 with the outer sensor 5 and the inner sensor 8, it is possible to appropriately control the temperature of the electric heating rod 1, and It is possible to provide a permanent device that can prevent abnormal overheating leading to burning and can be used safely. Further, unlike the control by the conventional dummy electric heating rod, the sensor rod 1b measures the temperature of the tubular member 11 on which the hair is actually wound, so that a permanent device capable of highly accurate control can be provided. Is.

  In the invention according to claim 2 of the present application, in addition to the above effect, the plurality of electric heating rods 1 are divided into controlled rod groups X, and the temperature can be adjusted for each controlled rod group X. Unlike the conventional uniform control, the hair can be finely deformed, and the current supplied to the heat generating member 2 is limited by the temperature sensed by the inner sensor 8. Therefore, during the treatment, by reapplying a liquid agent such as a treatment agent to the electric heating rod 1, the temperature of the cylindrical member 11 decreases, and the inner side 14 of the cylindrical member 11 and the inner peripheral surface 12 of the cylindrical member 11 Even if a temperature difference occurs, the heat generating member 2 does not burn out, and a permanent device that can use the electric heating rod 1 more safely can be provided.

  In the invention according to claim 3 of the present application, in addition to the effect of the invention according to claim 1 or 2, the use of a bimetal thermostat having a simple structure as the inner sensor 8 makes it possible to provide an inexpensive electric heating rod. 1 can be provided.

In the invention according to claim 4 of the present application, by providing the electric heating rod 1 with the outer sensor 5 and the inner sensor 8, the temperature control of the electric heating rod 1 can be performed appropriately. It is possible to provide a permanent device that can prevent abnormal overheating leading to burning and can be used safely. Further, unlike the control by the conventional dummy electric heating rod, the sensor rod 1b measures the temperature of the tubular member 11 on which the hair is actually wound, so that a permanent device capable of highly accurate control can be provided. Is.

In the inventions according to claims 5 and 6 of the present application, the inner sensor 8 is provided only in the sensor rod 1b, and the inner sensor 8 can function only as a sensing means. The structure of the rod 1 can be simplified, it is difficult to cause a failure, and a permanent device that can collectively prevent the overheating of the electric heating rod 1 on the permanent device body 6 side can be provided. It is.

In the invention according to claim 7 of the present application, in addition to the effects of the above-described inventions, the inner sensor 8 is covered with a substance that serves as both a heat insulating material and an insulating material, thereby It is possible to provide a permanent device that can reliably detect the temperature inside 14 from the surface 12 without error.

  Next, an embodiment of the present invention will be described with reference to the drawings. 1 and 2 are explanatory views showing the usage state of the permanent device of this example. FIG. 3 is a diagram illustrating the structure of the sensor rod according to the first embodiment. FIG. 4 is an explanatory diagram illustrating a rod temperature control mechanism of the permanent device according to the first embodiment. FIG. 5 is a diagram illustrating the structure of the sensor rod according to the second embodiment. FIG. 6 is an explanatory diagram showing a rod temperature control mechanism of the permanent device according to the second embodiment.

The permanent device according to the first embodiment of the present example includes an electric heating rod 1 as shown in FIG. This electric heating rod 1 has a hollow cylindrical member 11 such as a cylindrical shape, and has a shape capable of winding the hair of the person to be treated around the outer peripheral surface 13.
The cylindrical member 11 is hermetically sealed to the extent that moisture can be prevented from entering inside, and the liquid agent is not contained in the inner side (inner space) 14 even when a liquid agent such as a curling agent, a treatment agent, or a permanent liquid is applied. It is supposed not to enter.

The electric heating rod 1 is provided with a heat generating member 2 such as a film heater that maintains the waterproof property from the outside by the cylindrical member 11 and generates heat by a current supplied from the outside. The heat generating member 2 may be brought into contact with the cylindrical member 11 of the electric heating rod 1 or may be coordinated with an interval. Further, it may be formed integrally with the cylindrical member 11.
During the treatment, the heating member 2 can be heated by the current supplied from the power source through the connection plug 3 provided on the end face of the electric heating rod 1 as shown in FIGS. 3 (A) and 3 (B). This heat is transmitted to the cylindrical member 11 and acts on the hair wound around the outer peripheral surface 13 of the cylindrical member 11 to perform deformation processing such as wave formation.

The heating rod 1 according to the present invention is provided with only the heat generating member 2 and the sensor rod 1b provided with the outside sensor 5 for measuring the temperature of the cylindrical member 11 and the heat generating member 2 alone. There is a dedicated rod 1a.
The sensor 5 for outside provided in the sensor rod 1b can sense the temperature outside the inner peripheral surface 12 or the inner peripheral surface 12 of the cylindrical member 11, and in the example shown in FIG. As shown in FIG. 3A, the sensor rod 1b is attached to the inner peripheral surface 12 of the cylindrical member 11, and indirectly detects the temperature of the inner peripheral surface 12 to indirectly detect the outer peripheral surface 13. It is supposed to sense the temperature. Then, the temperature sensed by the outside sensor 5 is sent as a temperature signal to the control unit 63 described later, whereby the electric heating rod 1 (1a, 1b) can be controlled.
Here, a heat insulating material (not shown) is arranged between the outer sensor 5 and the heat generating member 2 so that the outer sensor 5 does not directly sense the temperature of the heat generating member 2. The sensor 5 and the heat generating member 2 are not in direct contact with each other.

  As for the outside sensor 5, as shown in FIG. 3B, it is assumed that the cylindrical member 11 of the sensor rod 1b is penetrated and a part of the outer surface 13 is exposed. It is good also as what measures. However, in this case, it is desirable to fix the outer sensor 5 in a watertight manner so that a liquid agent such as a perm liquid does not enter the inner space 14 of the sensor rod 1b from the portion through which the outer sensor 5 passes.

  A connection plug 3 for supplying current or the like is provided on one end face of the electric heating rod 1 and is connected to the rod side plug 7b of the electric cord 7 as shown in FIG. The connection plug 3 has at least two terminals for the heating rod 1a so that wiring for supplying current to the heating member 2 can be connected. The sensor rod 1b has at least four terminals so that the outer sensor 5 and the heat generating member 2 can be connected. The connection plug 3 and the outside sensor 5 are connected by a heating member cable 4a as a circuit for energizing the heating member 2, and the connection plug 3 and the heating member 2 are connected to the sensor. They are connected by a cable 4b (see FIG. 4). The heating member 2 and the sensor cable 4b are connected at a contact point 21 as shown in FIGS.

  As shown in FIGS. 1 and 2, the electric heating rod 1 is connected to the socket 65 of the permanent device main body 6 via the main body side plug 7 a of the electric cord 7. Inside the electric cord 7, a heating member cable 71 and a sensor cable 72 are provided. The heating member cable 71 is connected to the heating member cable 4a of the heating rod 1a and the sensor rod 1b, and is connected to the sensor. The cable 72 is connected to the sensor cable 4b of the sensor rod 1b, whereby the rods 1a, 1b and the permanent device body 6 are electrically connected (see FIG. 4). The electric cord 7 used only for the heating-only rod 1a may have only the heating member cable 71 and omit the sensor cable 72.

In the first embodiment, in each electric heating rod 1 (1a, 1b), an inner sensor 8 is provided in the middle of a heating member cable 4a which is a circuit for energizing the heating member 2. The inner sensor 8 can sense the temperature of the inner space 14 that is inside the inner peripheral surface 12 of the cylindrical member 11.
The inner sensor 8 is functionally divided into sensing means and circuit interruption means. The sensing means senses the temperature of the inside sensor 8, that is, the temperature of the inner space 14 of the electric heating rod 1. Then, the circuit interrupting means shuts off the circuit 4a for energizing the heat generating member 2 when the temperature sensed by the sensing means exceeds a preset value, or restricts the current related to energization, etc. The switch operates as a switch in which energization to the heat generating member 2 is restricted.

  In the first embodiment, as the inner sensor 8, a bimetal thermostat in which the above-described sensing means and circuit interrupting means are integrated is used. This is a known one having a deformed body made by bonding two kinds of alloy plates having different expansion coefficients depending on temperature, and at least one end of the deformed body is movably coordinated between the contact points of the circuit. If the ambient temperature is higher than the preset temperature, which is determined by the combination and shape of the two types of alloys, the deformed body will be deformed and the circuit will be shut off. The circuit is connected. Since the bimetal thermostat has a simple structure, it has an advantage that the electric heating rod 1 can be provided at a low cost.

  Since the inner sensor 8 is provided in the middle of the heating member cable 4a in this way, a liquid agent such as a curling agent, a treatment agent, or a permanent solution is re-applied to the electric heating rod 1 during the treatment, thereby forming a cylindrical shape. Even when the temperature of the member 11 decreases and a temperature difference occurs between the cylindrical member 11 and the inner space 14, even if the heating member 2 is heated according to the decreased temperature sensed by the outer sensor 5, the heating member Since the inner sensor 8 is activated and energization is restricted until the burnout of No. 2 occurs, abnormal overheating can be prevented and the electric heating rod 1 can be used safely.

  Moreover, in the case of Example 1, since the inner side sensor 8 is provided for each electric heating rod 1, the abnormal heating of the heat generating member 2 can be prevented for each electric heating rod 1. Further, there is an advantage that it is not necessary to provide a corresponding device on the permanent device main body 6 side in order to prevent abnormal overheating.

  Here, as shown in FIG. 3C, the inner sensor 8 is covered with a tubular body 9 that serves as both a heat insulating material and an insulating material so as not to malfunction due to direct contact with the heat generating member 2. Yes. A space 9a exists between the tubular body 9 and the inner sensor 8, and the temperature sensing of the inner sensor 8 is actually performed by sensing the temperature of the air present in the space 9a. Made. Thereby, the temperature of the inner space 14 of the electric heating rod 1 can be reliably sensed without error without being affected by the heating member 2.

  In this example, the inner sensor 8 is a bimetal thermostat in which the sensing means and the circuit breaking means are integrated. However, the present invention is not limited to this, and both are configured separately. It is also good. As the inner sensor 8, various sensors such as a semiconductor type or a mechanical type other than a bimetal or a chemical reaction may be employed.

The perm apparatus main body 6 is provided with devices related to a power source for supplying electric power to the electric heating rod 1 and other switches, such as a box-shaped one as shown in FIG. 1 or a chair on which a patient is seated. It can be implemented in various forms, such as those built in a wall or mounted on a wall or ceiling.
The permanent device main body 6 receives a temperature signal sent from the outside sensor 5 provided on the sensor rod 1b, and controls the supply of current to the heating member 2 of the electric heating rod 1 including the heating rod 1a. A temperature control mechanism is provided.

FIG. 4 is an explanatory diagram illustrating a temperature control mechanism of the permanent device according to the first embodiment.
The permanent device main body 6 is provided with a power input unit 61, a voltage drop unit 62, a control unit 63, and a switching element 64.
The power supply input unit 61 is for supplying a current to the electric heating rod 1. In a normal case, a plug or a power cord for taking in a current from the outside of the permanent device main body 6 corresponds to this.
The voltage drop unit 62 is a transformer for stepping down the current supplied from the power input unit 61 to an appropriate voltage for heating the heating member 2 so that the current can be supplied to the heating member 2 of the heating rod 1. It is a vessel.

The normal control means 63a and the switching element 64 in the control unit 63 are combined to perform on / off control of current to the electric heating rod 1.
Specifically, the switching element 64 is a switch for turning on and off the current to the heat generating member 2 of the electric heating rod 1 and is provided in a one-to-one correspondence for each controlled rod group X described later.
The control unit 63 (normal control means 63a) receives the temperature signal measured by the outer sensor 5 provided in the sensor rod 1b of the electric heating rod 1, determines the overheating state of the tubular member 11, and accordingly A processing means such as a microcomputer is provided for issuing an on / off command to the switching element 64 and performing arithmetic processing therefor. The control unit 63 (normal control means 63a) receives a temperature signal sent from the sensor 5 for the outside of the sensor rod 1b in each controlled rod group X, which will be described later, and according to each temperature signal, Command each switching element 64 provided corresponding to the controlled rod group X.

  As described above, the electric heating rod 1 includes the heating rod 1a that performs only heating and the sensor rod 1b in which the outside sensor 5 is built. These are used by constituting a set of controlled rod groups X by combining a plurality of heating-only rods 1a with respect to one sensor rod 1b. That is, the temperature measured by the outer sensor 5 that is always present in the electric heating rod 1 in the controlled rod group X is defined as a temperature measurement value (representative value) of each controlled rod group X. In accordance with the value), the heating rod 1a and the sensor rod 1b of each controlled rod group X are controlled collectively. Therefore, the finer the block division of the controlled rod group X, the higher the temperature control accuracy.

Next, the operation of the permanent device according to this example will be described with reference to FIG.
The current supplied from the power input unit 61 is stepped down via a voltage drop unit 62 such as a transformer, and then the switching element 64 (64a, 64b), the electric cord 7 (heating member cable 71), and the connection plug. 3. It is supplied to the heating member 2 of the electric heating rod 1 via the heating member cable 4a. Thereby, the cylindrical member 11 is heated, and deformation processing such as wave formation is performed on the hair wound around the outer peripheral surface 13.

  As described above, the hair is deformed by the heat generated from the heat generating member 2, and at the same time, the temperature of the tubular member 11 of the sensor rod 1 b of the electric heating rod 1 is sensed by the outer sensor 5. A temperature signal emitted from the outside sensor 5 is sent to the control unit 63 (normal control means 63a) via the sensor cable 4b, the connection plug 3, and the sensor cable 72 of the electric cord 7.

  The control unit 63 (normal control means 63a) determines whether or not the tubular member 11 is in an overheated state based on the temperature signal sent from the outside sensor 5. When the cylindrical member 11 is in an overheated state, a command is sent to the switching element 64 (64a, 64b) to cut off the energization to the heat generating member 2, and otherwise the energization is continued as it is. In this way, the control unit 63 (normal control means 63a) operates the switching element 64 (64a, 64b) to turn on and off the heating member 2 and control the tubular member 11 to have an appropriate temperature. To do.

In addition, control of each heat generating member 2 is collectively performed for each controlled rod group X divided as described above. Specifically, the heating members 2 in the first controlled rod group Xa are turned on and off at once by the first switching elements 64a connected as shown in FIG. Each heat generating member 2 is similarly turned on and off by the second switching element 64b. That is, each switching element 64 (64a, 64b) has a one-to-one correspondence with each controlled rod group X (Xa, Xb), and commands from the control unit 63 (normal control means 63a). In response, each switching element 64 (64a, 64b) collectively controls the temperature of the cylindrical member 11 in each controlled rod group X (Xa, Xb).
Therefore, by appropriately setting the arrangement of each controlled rod group X, such as dividing the controlled rod group X by the top and hem portions of the hair of the patient, each controlled rod group X The temperature controlled by the electric heating rod 1 can be changed, whereby a desired deformation process can be performed on the hair.

  As described above, since the inner sensor 8 is provided in the middle of the heating member cable 4a, a liquid agent such as a curling agent, a treatment agent, or a permanent solution is reapplied to the electric heating rod 1 during the treatment. Thus, when the temperature of the cylindrical member 11 decreases and a temperature difference occurs between the cylindrical member 11 and the inner space 14, the heat generating member 2 is heated according to the decreased temperature sensed by the outer sensor 5. However, since the inner sensor 8 is activated and energization is restricted until the heating member 2 is burned out, and the heating of the heating member 2 is suppressed, the electric heating rod 1 can be used safely.

Next, an example in which the control member 63 collectively performs the control rod group X for each controlled rod group X without preventing the heating member 2 from being abnormally overheated for each electric rod 1 as described above. The configuration other than that specifically described as the second embodiment is the same as the first embodiment.
In the case of the second embodiment, the inner sensor 8 is arranged in the inner space 14 of the sensor rod 1b as shown in FIG. It senses temperature. That is, only the sensing means in the first embodiment is used. The temperature sensed by the inner sensor 8 is sent to the control unit 63 as an internal temperature signal, thereby controlling the electric heating rod 1 (1a, 1b).

In the case of the second embodiment, as shown in FIG. 6, the control unit 63 is provided with an abnormal overheat prevention means 63b for controlling the abnormal overheat prevention of the heat generating member 2 separately from the normal control means 63a. . The abnormal overheat preventing means 63b includes a temperature difference sensing means 63b1 and a command means 63b2.
The temperature difference sensing means 63b1 senses the difference between the temperature sensed by the outer sensor 5 present on the sensor rod 1b and the temperature sensed by the inner sensor 8. When the temperature difference sensed by the temperature difference sensing means 63b1 becomes an abnormal value exceeding the value set in advance by the command means 63b2, the command means 63b2 detects the sensor rod 1b having the abnormal value. The switching element 64t corresponding to the abnormally controlled rod group Xt in which is present gives a command to turn off the power, and has a built-in processing means such as a microcomputer for performing arithmetic processing therefor. In this example, the command means 63b2 issues a command to turn off the energization to the switching element 64t. However, the command means 63b2 is not limited to this, and issues various commands to limit the energization to the heat generating member 2, such as reducing the current related to energization. As good.

  As described above, the sensor 8 for the inner side is provided in the sensor rod 1b, and the abnormal overheating preventing means 63b is provided in the control unit 63. 1, when the temperature of the cylindrical member 11 decreases and a temperature difference occurs between the cylindrical member 11 and the inner space 14, heat is generated according to the decreased temperature sensed by the outer sensor 5. Even if the member 2 is heated, since the switching element 64 (64t) cuts off the power supply to the heat generating member 2 until the heat generating member 2 is burned out, the electric heating rod 1 can be used safely.

  In the case of the second embodiment, the inner sensor 8 is provided only on the sensor rod 1b, and the inner sensor 8 can function only as a sensing means, so that the structure of the electrothermal rod 1 can be simplified. It is difficult to cause a failure. In addition, a mechanism for preventing abnormal overheating can be constructed simply by adding the abnormal overheat preventing means 63b and the command means 63b2 to the control unit 63, and the abnormal overheating prevention of the electric heating rod 1 can be collectively performed on the permanent device body 6 side. There is a merit that it can be done.

It is explanatory drawing which shows the use condition of the permanent device of this example. In the permanent device of this example, it is explanatory drawing which shows the connection of a main body and an electric heating rod. (A), (B) is sectional explanatory drawing of the sensor rod which concerns on Example 1. FIG. (C) is explanatory drawing which shows the state in which the inner side sensor was coat | covered. It is explanatory drawing which shows the temperature control mechanism of the rod of the permanent device which concerns on Example 1. FIG. (A) (B) is sectional explanatory drawing of the sensor rod which concerns on Example 2. FIG. It is explanatory drawing which shows the temperature control mechanism of the rod of the permanent device which concerns on Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric heating rod 1a Heating rod 1b Sensor rod 11 Cylindrical member 12 Inner peripheral surface of cylindrical member 14 Inner space inside inner peripheral surface of cylindrical member 2 Heating member 3 Connection plug 4a Current supply circuit to heating member, heat generation Cable for member 4b Sensor cable 5 Sensor for outside 61 Power supply input unit 62 Voltage drop unit 63 Control unit 63b Overheating prevention unit 63b1 Temperature difference sensing unit 63b2 Command unit 64 Switching element 64t Switching element corresponding to abnormal controlled rod group 8 Inside Sensor X Controlled rod group Xt Abnormally controlled rod group

Claims (7)

In a permanent device that can perform deformation processing such as wave formation on the hair by winding the subject's hair around the electric heating rod (1) and heating it.
A hollow cylindrical member (11) hermetically sealed to such an extent that the electric heating rod (1) can prevent moisture from entering;
A heat generating member (2) that is maintained waterproof from the outside by the cylindrical member (11) and generates heat by an electric current supplied from the outside;
An outer sensor (5) capable of sensing a temperature outside the inner peripheral surface (12) or the inner peripheral surface (12) of the tubular member (11);
An inner sensor (8) capable of sensing the temperature inside (14) from the inner peripheral surface (12) of the tubular member (11);
Heat generating member (2), the outer sensors (5), the connection plug (3) connected to each of the inner sensors (8) and I der those with,
The perm apparatus has a circuit interruption means,
Regardless of the temperature sensed by the outer sensor (5), the circuit breaker means that when the temperature sensed by the inner sensor (8) exceeds a preset value, the heating member (2) Permanent device characterized in that it operates to limit energization . In a permanent device that can perform deformation processing such as wave formation on the hair by winding the subject's hair around the electric heating rod (1) and heating it.
As the electric heating rod (1) , a heating rod (1a) and a sensor rod (1b) having a hollow cylindrical member (11) sealed to such an extent that moisture can be prevented from entering are used. Because
Inside the heating-only rod (1a), a heating member (2) capable of generating heat from the cylindrical member (11) by an electric current supplied from the outside of the rod, and an inner peripheral surface of the cylindrical member (11) ( 12) an inner sensor (8) capable of sensing the temperature inside (14) from the inside,
The sensor rod (1b) has an inner sensor (5) for sensing the temperature outside the inner circumference (12) or the inner circumference (12) of the cylindrical member (11), and the heating rod ( A heating member (2) similar to 1a) and an inner sensor (8),
The perm apparatus includes a power input unit (61), a voltage drop unit (62), a control unit (63), and a switching element (64).
The power input part (61) is for supplying a current to the heating member (2) of the electric heating rod (1),
The voltage drop unit (62) is for stepping down the current supplied from the power input unit (61) to an appropriate voltage so that the current can be supplied to the heating member (2) of the electric heating rod (1). ,
The control unit (63) receives a temperature signal generated by the outer sensor (5) of the sensor rod (1b), and issues an on / off command to the switching element (64).
The switching element (64) turns on and off the current to the heat generating member (2) of the electric heating rod (1).
For each controlled rod group (X) in which a plurality of dedicated heating rods (1a) are combined with one sensor rod (1b), the heating of each electric rod (1) by the control unit (63). On / off control of the member (2) is performed,
A perm apparatus characterized in that energization of the heat generating member (2) is restricted when the temperature sensed by the inner sensor (8) exceeds a preset value. The inner sensor (8) is provided in the middle of the circuit (4a) for energizing the heat generating member (2) inside the electric heating rod (1),
A bimetal type thermostat is used, which shuts off the circuit (4a) when the temperature sensed by the inner sensor (8) exceeds a preset value. The permanent device according to claim 1 or 2. In a permanent device that can perform deformation processing such as wave formation on the hair by winding the subject's hair around the electric heating rod (1) and heating it.
  A hollow cylindrical member (11) hermetically sealed to such an extent that the electric heating rod (1) can prevent moisture from entering;
A heat generating member (2) that is maintained waterproof from the outside by the cylindrical member (11) and generates heat by an electric current supplied from the outside;
An outer sensor (5) capable of sensing a temperature outside the inner peripheral surface (12) or the inner peripheral surface (12) of the tubular member (11);
An inner sensor (8) capable of sensing the temperature inside (14) from the inner peripheral surface (12) of the tubular member (11);
A heating plug (2), an outer sensor (5), and a connection plug (3) connected to each of the inner sensor (8),
The perm apparatus has a means for preventing abnormal overheating,
When the abnormal overheat prevention means has an abnormal value in which the difference between the temperatures detected by the outer sensor (5) and the inner sensor (8) exceeds a preset value, the heating member (2) Permanent device characterized in that it operates to limit energization to the motor. In a permanent device that can perform deformation processing such as wave formation on the hair by winding the subject's hair around the electric heating rod (1) and heating it.
As the electric heating rod (1) , a heating rod (1a) and a sensor rod (1b) having a hollow cylindrical member (11) sealed to such an extent that moisture can be prevented from entering are used. Because
The heating rod (1a) has a heating member (2) that can heat the cylindrical member (11) by a current supplied from the outside of the rod,
Inside the sensor rod (1b), the inner surface (12) of the cylindrical member (11) or an outer sensor (5) capable of sensing the temperature outside the inner peripheral surface (12), and the cylindrical member (11) ) Including an inner sensor (8) capable of sensing the temperature inside (14) from the inner peripheral surface (12), and a heating member (2) similar to the heating rod (1a).
The perm apparatus includes a power input unit (61), a voltage drop unit (62), a control unit (63), and a switching element (64).
The power input part (61) is for supplying a current to the heating member (2) of the electric heating rod (1),
The voltage drop unit (62) is for stepping down the current supplied from the power input unit (61) to an appropriate voltage so that the current can be supplied to the heating member (2) of the electric heating rod (1). ,
The control unit (63) receives a temperature signal generated by the outer sensor (5) of the sensor rod (1b), and issues an on / off command to the switching element (64).
The switching element (64) turns on and off the current to the heat generating member (2) of the electric heating rod (1).
For each controlled rod group (X) in which a plurality of dedicated heating rods (1a) are combined with one sensor rod (1b), the heating of each electric rod (1) by the control unit (63). On / off control of the member (2) is performed,
When the temperature difference sensed by the outer sensor (5) and the inner sensor (8) becomes an abnormal value that exceeds a preset value, the control unit (63) becomes the abnormal value. In the abnormally controlled rod group (Xt) in which the sensor rod (1b) is present, an abnormal overheat preventing means (63b) for restricting energization to the heat generating member (2) of each electric heating rod (1) is provided. Permanent device characterized by. The abnormal overheat preventing means (63b) detects a difference between the temperature sensed by the outer sensor (5) of each sensor rod (1b) and the temperature sensed by the inner sensor (8) ( 63b1),
When the temperature difference sensed by the temperature difference sensing means (63b1) becomes an abnormal value exceeding a preset value, the abnormal controlled rod in which the sensor rod (1b) having the abnormal value exists is present. The switching element (64t) corresponding to the group (Xt) is provided with command means (63b2) for issuing a command to turn off the power.
The permanent device according to claim 5 . It said inner sensors (8), so as not to contact with malfunction directly to the heat generating member (2), characterized in that it is coated with a material which also serves as a heat insulating material and the insulating material, claim 1 The permanent device according to any one of 6 .

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