Patent Publication Number: US-2009223532-A1

Title: Permanent wave treatment method and device

Description:
TECHNICAL FIELD 
     The present invention relates to a permanent wave treatment of hairs. More particularly, the present invention relates to a permanent wave treatment method and device therefor, in which, as a result of the treatment, hair damage is suppressed, and a wave of its finish is improved, and highly safe treatment can be carried out, as compared with a case of treatment by a conventional apparatus. 
     BACKGROUND 
     In general, permanent wave treatment is carried out in accordance with the steps described below. The steps include: curling hairs around a rod; applying a first permanent wave agent containing a reducing agent to soften and swell the hairs, followed by washing out the reducing agent adhering to the hairs, applying a second permanent wave agent containing an oxidizing agent to oxidize and fix cohesion inside the hairs, removing the rod, and drying the hairs. 
     Although this general permanent wave treatment method is a widely generally prevailing technique, there is a disadvantage that a wave of the treated hairs are enlarged (loosened) if the hairs are dried, and a period of retaining the wave has not been sufficiently satisfactory. 
     In recent years, a method for adding the step of heating hairs to permanent wave treatment by using a hair iron or a heating rod is disclosed in Japanese Patent Application Laid-open No. 2004-262798. The steps of this treatment method include: applying a first permanent wave agent containing a reducing agent to hairs to soften and swell the hairs, followed by wiping out redundant moisture by water wash; curling the hairs around a rod capable of heating them, and heating the rod, thereby heating the hairs, followed by applying a second permanent wave agent containing an oxidizing agent to oxidize and fix cohesion inside the hairs, removing the rod, and drying the hairs. 
     This permanent wave treatment method using a hair iron or a heating rod includes the steps of heating reduced hairs, followed by oxidizing and fixing internal cohesion of the hairs (carrying out a second permanent agent), followed by washing out the second permanent wave agent, and drying the hairs. 
     [Patent document 1]: Japanese Patent Application Laid-open No. 2004-262798 
     SUMMARY OF THE INVENTION 
     In the foregoing prior art, the hairs curled to be overlapped around rods are merely heated from the rods, and thus, there is a need for increasing a temperature of a hair iron and a heating rod. Treatment is carried out at a temperature of 180° C. or more in the case of the hair iron and at a temperature of 100° C. or more in the case of the heating rod. 
     Heating treatment is carried out at such a high temperature, and thus, hairs are significantly damaged. In particular, in the entire hairs, highly damaged hair tip portions are curled around the inside of a rod, and is subjected to direct rod heating, thus resulting in accelerated hair damage. In addition, a hair iron or a heating rod is approached to the head part of a subject. Thus, there has been a problem that the head part of the subject becomes hot, and the subject feels discomfort. 
     The present invention has been made in order to solve the foregoing problem. It is an object of the present invention to provide a permanent wave treatment method and apparatus therefor, wherein hot air is supplied to the entire hairs, and the hot air supplied via the hairs is suctioned from the inside of a rod, thereby lowly suppressing a drying temperature and reducing hair damage; there is less heat and danger associated with a subject due to a high temperature, a wave faithful to the rod is formed, a wave is not loosened even if the hairs are dried, and an initial wave state can be maintained for a long period of time. 
     According to a first aspect of the present invention, there is provided: a permanent wave treatment method, comprising the steps of: curling hairs around a rod; establishing a heating atmosphere with respect to the hairs curled around the rod by heating means; and in the heating atmosphere state, establishing the inside of the rod at a negative pressure state by suction means, and then, suctioning the heating atmosphere via the hairs, thereby drying the hairs. 
     According to a second aspect of the present invention, there is provided: a permanent wave treatment method according to the first aspect, wherein the step of stopping the heating by the heating means, and then, suctioning atmospheric air via the hairs by the suction means, thereby cooling the dried and warmed hairs is added. 
     According to a third aspect of the present invention, there is provided: a permanent wave treatment apparatus, comprising: heating means for subjecting hairs of a subject to a heating atmosphere; a rod for curling hairs formed so as to enable air distribution; suction means for establishing the inside of the rod at a negative pressure state; and connecting means for connecting the rod and the suction means with each other. 
     According to a fourth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the third aspect, wherein the connecting means is composed of a tube having flexibility, and a plurality of the tubes are configured so that they can be removably mounted on the suction means. 
     According to a fifth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the fourth aspect, wherein the suction means on which the tubes are to be mounted is configured so as to interrupt air distribution in the case where the tubes are removed. 
     According to a sixth aspect of the present invention, there is provided: a permanent wave treatment method according to the fourth aspect, wherein the tubes are diverged into many pieces so as to enable connection with a plurality of rods. 
     According to a seventh aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the third aspect, wherein the means for establishing the heating atmosphere is composed of a hood positioned at a head part of a subject and air supply means for supplying hot air into the hood. 
     According to an eighth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the seventh aspect, wherein the hood consists of a fixed hood and a hood which is openable so as to enable backward or lateral treatment with respect to the fixed hood, and a hot air blowout port close to the air supply means and a suction port of the suction means are provided at the fixed hood side. 
     According to a ninth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the third aspect, wherein the means for establishing the airs at the heating atmosphere is used by a radiant heat such as a heater for the head part. 
     According to a tenth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the third aspect, comprising air and water separating means for separating moisture in the hot air suctioned by the connecting means via the rod. 
     According to an eleventh aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the third aspect, wherein the air supply means has a return air supply means for returning into the heating atmosphere the hot air from which the moisture has been removed in the air and water separating means. 
     According to a twelfth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the eleventh aspect, wherein deodorizing means for adsorbing and decomposing smell of a permanent wave chemical is provided in an air supply passage of the return air supply means. 
     According to a thirteenth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the third aspect, wherein the connecting means for connecting the rod and the suction means is formed of a tube having flexibility and one end of the tube is connected to a connecting member formed at one end of the rod, while the other end of the tube is connected to a plurality of accessible connecting portions formed in the suction means. 
     According to a fourteenth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the third aspect, wherein the tube and the rod are connected to each other via rotatable means. 
     According to a fifteenth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the fourteenth aspect, wherein joint means is formed of a ball section connected to the tube side and an engagement hole with which the ball section formed at the rod side is rotatably engaged and a cap for precluding air suctioning is removably mounted on the ball section in a state in which the cap is not engaged with the engagement hole. 
     According to a sixteenth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the third aspect, wherein a moisture exhaust wall is formed on an internal face of a closed end side of the rod for discharging the moisture adhering to the hairs to the outside so as to prevent water from being accumulated in the rod. 
     According to a seventeenth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the third aspect, wherein the rod is divided into at least two sections along a longitudinal direction. 
     According to an eighteenth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the seventeenth aspect, wherein the rods is divided into at least two sections along a longitudinal direction, and the divided rod is configured so as not to be separated from each other by a coupling piece. 
     According to a nineteenth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the sixteenth aspect or the seventeenth aspect, wherein air leakage preventing means for preventing leakage of air while in suctioning operation is provided at a joint of the divided rod. 
     According to a twentieth aspect of the present invention, there is provided: a permanent wave treatment apparatus according to the third aspect, wherein at least one or more sensors for measuring a temperature and humidity are mounted at proper positions of the rod or the hood side. 
     According to the permanent wave treatment method and apparatus of the present invention, as described previously, hairs are curled around a rod; a heating atmosphere is established by heating means with respect to the hairs curled around the rod; in the heating atmosphere, the inside of the rod is established at a negative pressure state by suction means; and the heating atmosphere is suctioned via the hairs, thereby drying the hairs. Thus, air is suctioned from the inside of the rod in a state in which the hairs are curled around the rod and the hairs are established at the heating state, whereby heating and suctioning are carried out at the same time, making it possible to lowly suppress a drying temperature of the hairs curled around the rod. Therefore, hair damage is reduced; there is less heat and danger associated with a subject due to a high temperature. Moreover, a wave faithful to the rod is formed, the wave is not loosened even if the hairs are dried, and an initial wave state can be maintained for a long period of time. 
     In addition, connecting means is composed of a tube having flexibility, and is configured so that a plurality of the tubes can be removably mounted on suction means. Thus, a number of rods can be mounted on the suction means via the tubes. Further, the suction means on which the tubes are mounted is structured so as to interrupt air distribution in the case where the tubes are removed. Thus, suctioning of the air from the suction means on which no tube is mounted is not carried out. Therefore, only suctioning via the tubes are carried out, and thus, the suction efficiency is improved without lowering of the suction force from the rods. 
     In addition, the tubes are diverged into a number of sections so as to enable connection with a plurality of rods, thus making it possible to establish connection with many more rods, and permanent wave variations can be increased so as to be adapted for the preference of a subject. Further, means for subjecting hairs to a heating atmosphere is composed of a heat positioned at the heat part of the subject and air supply means for supplying hot air into the hood, thus making it possible to efficiently carry out drying of hairs while hot air can be efficiently supplied and temperature control of the hood can be precisely carried out. 
     In addition, the hood consists of a fixed hoot and an open/close hood which is openable to enable backward treatment with respect to the fixed hood, and a hot air blowout port close to the air supply means and a suction port of the suction means are provided at the fixed hood side. Thus, by opening the open/close hood, treatment such as curling hairs around a rod can be carried out at the back side of the subject. Therefore, treatment can be carried out at a fixed position without a movement to another seat by the subject or a hairdresser. In addition, in the case where the subject attempts to check hairs, the hairs can be check by opening the open/close hood. 
     Further, means for establishing hairs at a heating atmosphere is used by a radiant heat such as a heater with respect to the heat part, whereby hair drying can be carried out comparatively quickly by means of a simple apparatus. In addition, air and water separating means for separating the moisture in hot air suctioned by the connecting means via the rod is provided, thereby preventing the moisture from being discharged to the outside. Thus, a suctioning motor fan can be prevented from being corroded. In addition, hot air is supplied to the hairs by two means, i.e., return air supply means for returning the hot air having the moisture removed therefrom in the air by water separating means into the heating atmosphere; and atmospheric air supply means for supplying the hot air heated by a heater or the like having suctioned atmospheric air into the heating atmosphere. In this manner, a rate of hot air supply to hairs is increased, a drying time is reduced, and then, power of the heater can be reduced, making it possible save energy. 
     Further, deodorizing means for adsorbing and decomposing the smell of a permanent wave chemical is provided in the air supply passage of the return air supply means, thereby making it possible to deodorizing the smell in air and properly maintain room environment. 
     In addition, connecting means for connecting a rod and suction means with each other is formed of a tube having flexibility and one end of the tube is connected to a connecting member formed one end of the rod, while the other end of the tube is connected to a number of accessible connecting portions formed in the suction means. Thus, the tube is led out only while in use, and a rod is connected to a tip end of the led out tube, thereby enabling a permanent wave work. Therefore, a tube which is not used can be placed in the suction means. Accordingly, the tube which is not used does not block anything and tube maintenance is very easy. 
     Further, the tube and rod is connected to each other via a turnable joint means. Thus, the rod is rotated with respect to the tube, where by the rod is fitted to hairs, prevent hairs from being pulled. In addition, the joint means is formed of: a ball section connected to the tube side; and an engagement hole with which the ball section is rotatably engaged. In addition, a cap for precluding air suctioning is removably mounted on the ball section in a state in which the cap is not engaged with the engagement hole. Thus, the rod can be easily mounted on the tube. In addition, the cap is engaged with the ball section, whereby suctioning is precluded. Therefore, only suctioning from the rod is carried out, the suction efficiency can be improved without lowering the suction force. 
     In addition, a rod is divided into two sections along a longitudinal direction, and the chemical accumulated inside of the rod while not in use can be cleaned. This, the rod can always be cleanly and sanitarily maintained. Further, the divided sections are prevented from being separated from each other by a coupling piece. These divided sections are not separated from each other, and thus, they are hardly lost. Alternatively, the above rod can be handled in the same manner as a rod integrated when curling hairs. In addition, air leakage preventing means for preventing air leakage while in suctioning is provided at a joint of the divided rod. Thus, a drying time is not extended by the air leakage from the joint section unlike the conventional rod. 
     In addition, a moisture discharge wall for discharging the moisture adhering hairs to the outside so as to prevent water from being accumulated in a rod is formed on an internal face at the closed end side of the rod. Thus, a floor or the subject&#39;s cloth is not contaminated by drop of the water or chemical from the rod. Further, at least one or more sensors for measuring a temperature or humidity is mounted at a proper position of the rod or hood side, thereby attaining advantageous effect that the temperature or humidity of hairs is maintained in an optimal state, enabling proper permanent wave treatment. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a side view showing an entire overview in a permanent wave treatment apparatus according to the present invention; 
         FIG. 2  is a side view showing essential portions of the same apparatus; 
         FIG. 3  is a perspective view seen from an obliquely backward direction showing a detailed view of the apparatus; 
         FIG. 4  is a perspective view seen from a backward direction of the same apparatus; 
         FIG. 5  is a perspective view showing a state before connecting male and female connectors 
         FIG. 6  is a perspective view showing a connection state of the same connectors; 
         FIG. 7A  is a side cross section showing a state before connecting the male and female connectors; 
         FIG. 7B  is a side view showing a connection state; 
         FIG. 8  is a side view showing a second embodiment in which an atmosphere of the subject&#39;s head part is established at a high temperature state by means of a heater device; 
         FIG. 9  is an oblique rear view when a dryer is used instead of the same heater device. 
         FIG. 10  is a side view showing a third embodiment; 
         FIG. 11  is a perspective view showing the same embodiment; 
         FIG. 12  is an illustrative view showing an internal structure; 
         FIG. 13  is a front view when a case is removed; 
         FIG. 14  is a side view of the same; 
         FIG. 15  is a rear view of the same as that in  FIG. 13 ; 
         FIG. 16  is a top view of the same; 
         FIG. 17  is a perspective view showing a detailed view of a portion of suction means in the same case; 
         FIG. 18  is a front view showing a rod; 
         FIG. 19  is a sectional view taken along the line A-A of the same rod; 
         FIG. 20  is an exploded view showing another embodiment in a state in which a rod is divided into two sections; 
         FIG. 21  is an exploded view when the two divided sections of the same rod are coupled with each other by means of a coupling piece; 
         FIG. 22  is a plan view showing the same rod; and 
         FIG. 23  is a sectional view showing a state in which two divided sections of the rod are coupled with each other. 
     
    
    
     THE BEST MODES OF EMBODIMENT OF THE INVENTION 
     According to the present invention, in a state in which hairs of a subject are curled around a rod capable of air distribution, the hairs are established at a heating atmosphere and the inside of the rod is established at a negative pressure state by suction means via connecting means connected to the rod. 
     Embodiment 1 
     Hereinafter, an preferred embodiment of a permanent wave treatment apparatus according to the present invention will be described with reference to the accompanying drawings. 
     In  FIG. 1 , reference uppercase letter A denotes a permanent wave treatment apparatus according to the present invention, which is movable for applying a first liquid containing a reducing agent to hairs while the applied hairs are left until the first liquid has been reacted, and washing out the first liquid adhering to a surface of the hairs, followed by drying the wet hair while moving a subject to a rear side of a hairdressing seat B. 
     The permanent wave treatment apparatus A is composed of: a base  1  having castors mounted thereon; a column  2  extended vertically from the base  1 ; a housing  5  having housed therein suction means  3  and air supply means  4  for blowing out hot air, described later in detail; and a hood  6  covered on the head part of a subject mounted on an upper part of the housing  5 . 
     The inside of a lead-out section  51  in the housing  5  is divided into a suction chamber and an air supply chamber while a shield plate  52  is provided therein and motors  31  and  41  are fixed at their back on both faces of the shield plate  52 . Then, scirocco type suction fan  32  is mounted on the motor  31 , and a scirocco type air supply fan  42  is mounted on the motor  41 . 
     An exhaust duct  33  is connected to an exhaust side of the suction chamber, and a muffling filter  34  compatible with a filter is mounted on an exhaust outlet of the exhaust duct  33 . In addition, an exhaust outlet of a vacuum duct  35 , one end of which is connected to a ring shaped suction tube  63  installed in a hood  6  described later, is disposed at a side face of the suction fan  32 . Further, a dust filter  36  is mounted partway of the vacuum duct  35 . 
     On the other hand, a suction filter  43  is mounted on a wall face which corresponds to a section opening by means of the air supply fan  42  of the housing  5  configuring the air supply chamber. In addition, a hot air duct  44  is mounted in the air supply chamber. One end of the duct is designed to supply air into the hood  6 , and the other end of the duct opens at the rear side of the hood  6 . In addition, a heater  45  for hating the air supplied from the air supply fan is mounted partway of the hot air dust  44 . Although not shown, an ion generator for negatively ionizing the hot air from the hot air duct  44  may be mounted. 
     The hood  6  is composed of a fixed hood  61  and an open/close hood  62  in the same manner as an invention disclosed in Japanese Patent Application Laid-open No. 2004-416 filed by an applicant of the present invention. The open/close hood  62  is opened at the forehead part in a state in which the subject wear the hood  62 . In this opened state, this open/close hood is configured so that a hairdresser can carry out a variety of treatments from the rear head side, for example, application of a chemical or the like. 
     A suction tube  63  to which the vacuum duct  35  is to be connected is mounted on an inner periphery face of the fixed hood  61 , and female connectors  71  of a connecting member  7  shown in  FIG. 5  to  FIG. 7  are mounted at a plurality of sites of the suction tube  63 . This female connectors  71  are formed in a cylindrical shape having an opening section  71   a  on a peripheral face, as shown in  FIG. 7A . At the inside of the cylinder, there are incorporated: a spring  71   b  and a valve  71   d  which closes a cylindrically shaped opening  71   c  by means of the spring  71   b . Therefore, in a state in which a male connector  72  described later is not inserted, a valve  71   d  is biased by means of the spring  71   b  so that the valve  71   d  closes the opening  71   c  of the female connector  71 . In addition, a lock groove  71   e  for guiding, engaging, and locking a plurality of lock protrusions  72   b  formed on an outer periphery face of the male connector  72  is formed on an inner periphery face of the female connector  71 . 
     On the other hand, the male connector  72  is also formed in a cylindrical shape in the same manner as the female connector  71  and is formed in a diameter which can be inserted into the female connector  71 . At a tip end, there are formed a plurality of protrusions  72   a  which pushes up the valve  71   d  against a resilient force of the spring  71   b  when the male connector  72  has been inserted into the female connector  71 . In addition, on the peripheral face, there is formed a lock protrusion  72   b  which is guided to the lock groove  71   e  formed on the inner periphery face of the female connector  71 , and then, is engaged therewith. 
     In the thus configured connector  7 , in a state in which the male connector  72  is disconnected from the female connector  71 , the valve  71   d  closes the opening  71   c . Thus, even if the suction tube  63  is established at a suction state, suctioning is not carried out from the connector  7 . In addition, in the case where the male connector  72  is engaged with the female connector  71 , the valve  71   d  is retracted, and the opening section  71   a  communicates with the male connector  72 . Thus, the inside of the rod connected to the tip end of the tube  8  enters a negative pressure state via a tube  8  connected to the male connector  72 . 
     Reference numeral  8  denotes a flexible tube engagingly fixed to the male connector  72 . Thus tube is diverged into a plurality of sections partway, and a tip end of each of these sections is structured so as to be removably connected to a rod R curling the subject&#39;s hairs. Although not shown, the rod R is formed in the shape of a number of elongated holes or circular holes so as to suction the hot air in the hood  6  via the hairs in a state in which the hairs are curled around the rod R. 
     Reference numeral  9  denotes an operating panel mounted on a rear face of the housing  5  described previously. Operating buttons such as a power supply button and an air supply temperature control button or a time setting button are mounted on this operating panel and a display face for displaying a temperature and a time is mounted. In addition, a control circuit for stopping air supply or suction by means of temperature monitoring is incorporated therein. 
     Now, a method for carrying out permanent wave treatment by using a permanent wave treatment apparatus according to the present invention will be described by way of example with reference to the accompanying drawings. 
     First, a first liquid which is a reducing agent for permanent wave treatment is applied to hairs; the applied hairs are left for 5 to 20 minutes, and the hairs are softened and swelled. Then, the hairs after softened are washed, and redundant moisture is removed. After the redundant moisture has been removed, a permanent wave second agent is applied, and then, the applied hairs are round around a rod R. Then, a tip end of the tube  8  is connected to the rod R, the tube being diverged in a state in which the open/close hood  61  in the hood  6  is opened forwardly. 
     Then, the open/close hood  62  is closed; the operating panel  9  is operated; a temperature and a time of a hot air is set; and then, the air supply means  4  and suction means  3  are established at a driven state. Then, an air supply fan  42  rotates, clean air is supplied to a hot air duct  44  via a suction filter  43 , and the hot air heated by a heater  45  is supplied into the hood  6 . 
     On the other hand, a suction fan  32  also rotates, and thus, air is discharged to an exhaust duct  33  via the tube  8 , a suction tube  63 , and a vacuum duct  35 . Therefore, the inside of the rod R is established at a negative pressure state, and the hot air in the hood  6  is discharged from the suction tube  63  via an air distributing section formed in the rod P through the hairs. At this time, a number of air distributing sections are formed in the rod R so that the hot air passes through the entirety curled around the rod R, and drying is carried out within a short period of time. 
     After the drying step has terminated, the air supply means  3  is stopped, and only the suction means  2  is operated to cool the suctioned and heated hairs. After the cooling has terminated, a second liquid which is a permanent wave oxidizing agent is applied to the hairs curled around the rod  1 , and the applied hairs are left for 1 to 15 minutes. After hair oxidization has terminated, the rod  1  is removed, dried, and styled, whereby the work terminates. 
     In the foregoing description, in the case where the tube  8  is disconnected from the suction tube  63 , the opening  71   c  at the suction side in the female connector  71  is closed. Thus, the suction force from another connector  7  is not lowered. However, in the case where the rod R is disconnected from a portion diverged from the tube  8 , suctioning from a portions from which this rod R is disconnected is carried out, and the suction force in another rod R is lowered. Thus, it is desirable that a connecting portion between the tube  8  and the rod R be structured such that suctioning is not carried out from the tube  8  removed from in the case where the rod R has been disconnected. 
     As another permanent wave treatment method, while the foregoing treatment method is featured by applying a second permanent wave agent, followed by curling hairs around the rod R as a timing of curing hairs around the rod R, a second treatment method is featured by applying a first permanent wave agent  1 , followed by curling hairs around the rod R. 
     Embodiment 2 
     Now, a second embodiment shown in  FIG. 8  and  FIG. 9  will be described here. 
     While the foregoing embodiment has described that the atmosphere in the hood  6  is established at a heated state, the present embodiment describes that a heat is radiated from a heater to the entire head part of a subject, and then, the inside of a rod R is established at a negative pressure state, thereby carrying out drying of hairs. 
     In  FIG. 8 , the embodied apparatus is structurally composed of: heating means  10  having a structure disclosed in Japanese Patent Application Laid-open No. Hei 1-221104, the heating means rotating a heater and a heat source  10   a  formed in a ring shape, the heat source radiating a heat from the heater via a reflection place so as to be radiant over the head part of a subject, for example; and a suction device  101  having only the suction means  4  described previously incorporated therein. The previously described tube  8  is led out from the suction device  101 , and a rod R is mounted on a tube diverged from this tube  8 . In this manner, like the first embodiment described previously, the atmosphere of the subject&#39;s head part is established at a heated state by the heating means  10 . Therefore, hair drying can be carried out within a short period of time by suctioning the heat via the rod R. 
     In  FIG. 9 , hairs are brown by a publicly known dryer instead of the heating means  10  described previously and a heat from the dryer is suctioned by means of the suction device  101 . As in  FIG. 8 , hair drying can be carried out within a short period of time. 
     Embodiment 3 
     Now, a third embodiment will be described with reference to  FIG. 10  to  FIG. 19 . The same constituent elements in each of the embodiments described above are designated by the same reference numerals. A duplicate description is omitted here. 
     Suction means  201 , return air supply means  202 , atmospheric air supply means  203 , and air and water separating means  204  shown in  FIG. 12  to  FIG. 16  are mounted on a base  1  having castors mounted thereon. These means  201  to  204  each are covered with a case  205 . 
     In addition, in front of an upper face of the case  205 , a semicircular arm  206  is rotatably mounted on the case  205 , and a hood  207  is mounted over this arm  206  and part of a top plate  205   a  of the case  205 . This hood  207  is composed of an non-ventilating cloth having flexibility, and is structured to cover the head part from the forehead to the collar part of the subject. 
     In addition, a panel is mounted on the top plate  205   a , the panel having: a timer witch for setting a time for driving the variety of means; a temperature and humidity setting switch for setting a temperature and humidity in the hood  207 ; and a panel  205   b  having a liquid crystal display plate or the like for displaying the set state. 
     The suction means  201  housed in the case  205  is compose of: a plurality of suction piles  201   a  (two suction pipes shown); and a suction chamber  211  which consists of a motor and a section fan, a lower end of the suction pipe  201   a  being connected via the air and water separating means  204  described in detail. An upper end of the suction pipe  201  is closed by means of a cap plate  201   c  having a number of insert ports  201   b  formed thereon. 
     At the insert ports  201   c  opened on the cap plate  201   b  in the suction pipe  201   a , as shown in  FIG. 17  to  FIG. 19 , the tube  8  is accessible and is inserted in an air tight state between the insert port  201   c  and the tube  8 . In addition, at a tip en of the tube  8 , a removable ball section  81  is mounted on an engagement hole  82   a  of a closing member  82  mounted on the rod R described later. A removable air hole  81   a  is communicating with the tube  8  is formed at this ball section  81 . In addition, a cap  83  is removably mounted on this air hole  81   b.    
     The rod R is formed in a cylindrical shape in the same manner as a known rod. In addition, an air distribution hole R 1  is formed at an outer periphery of the rod R. The ball section  81   a  is removable at one end and the closing member  82  is engagingly fitted so that a hemisphere shaped engagement hole  82   a  is formed, the engagement hole being rotatably engaged. In addition, a sectional protrusive moisture exhaust wall R 2  is formed for the moisture generated from the hairs when a permanent wave chemical is applied to the other end of the rod R to be prevented from being accumulated in the rod R. In addition, joint means is composed of the call  81  and the closing member  82 . 
     In the thus configured suction means  201 , suctioning is carried out by means of a suctioning chamber  211  so that the inside of the air and water separating means  204  connected to the suction chamber  211  enters a negative pressure state. When the inside of the air and water separating means  204  enters a negative pressure state, the inside of a suction pipe  201   a  also enters a negative pressure state. Thus, the inside of the rod R connected to the suction pipe  201   a  via the tube  8  also enters a negative pressure state so that the permanent wave chemical supplied to the hairs curled around the rod R is suctioned from the air distributing hole R 1 , and the suctioned chemical is supplied into the air and water separating means  204 . 
     The chemical-containing air is separated into a moisture and an air by means of the air and water separating means  204 , and only the separated air is supplied into the suction chamber  211 . The moisture of the chemical or the like is reserved in the air and water separating means  204 . This moisture may be discarded by clerks or the like after work. 
     The smell of the chemical is contained in the air from which the moisture is removed by the air and water separating means  204 . Thus, deodorizing means for adsorbing and decomposing the smell is disposed in pipeline connecting the air and water separating means  204  and the suction chamber  211  with each other, whereby no smell enters the suction chamber  211 . 
     A return pipe  202   a  of a circulating air supply means  202  is connected to the discharge side of the suction chamber  211 , and an upper end of the return pipe  202   a  protrudes from the top plate  205   a  and opens in the hood  207 . Therefore, the air suctioned in the suction chamber  211  is supplied into the hood  207  via the return pipe  202   a . In the case where there is no need for the circulating air supply means  202 , an exhaust pipe  211   a  is mounted on the suction chamber  211  to discharge air to the outside. In addition, in the case where a structure for returning air to the hood  207  by utilizing the circulating air supply means  202  or a structure for discharge air by utilizing the exhaust pipe  211   a  is selectively provided, switching means such as damper may be used. 
     Now, the atmospheric air supply means  203  will be described here. An air supply chamber  213  is provided adjacent to the inside of the suction chamber  211 , an air supply fan is disposed while the motor is shared, and atmospheric air is taken into the air supply chamber  213  from an atmospheric air introducing pipe  213   a . Then, the taken atmospheric air is supplied into the air supply pipe  203   a  which protrudes from the top plate  205   a  and which opens in the hood  207 . Here, a heater  203   b  is incorporated in the air supply pipe  203   a  so that the suctioned atmospheric air is heated, and is supplied into the hood  207 . 
     Although not shown, a sensor for detecting a temperature or humidity of hairs is disposed at a desired position of the hood  207  or in the rod R, and a lead wire from the sensor is connected to a temperature control circuit incorporated in a panel  205   b . In the case where hairs are established at a heated state by a heat generated by a heater as shown in  FIG. 8 , a sensor for detecting a temperature or humidity is installed at only the rod R. 
     Now, an operation in the present embodiment will be described here. First, in a state in which an arm  206  having the hood  207  mounted thereon is rotated upwardly a subject is caused to set down on a seat disposed at a front side. In this state, a tube  8  is pulled out from suction means  201 , and a cap  83  is removed from an air hole  81   a  of a ball section  81  mounted on a tip end of the tube  8 . 
     Next, the ball section  81  is engaged with an engagement hole  82   a  of a closing member  82  mounted on a rod R. Next, the subject&#39;s hairs are curled around the rod R. At this time, the rod R is turnable with respect to the tube  8 , thus facilitating a work of curling the hairs around the rod R. In addition, the hairs are not pulled after curled, and thus, the subject does not feel pain caused by the hairs being pulled. 
     Then, the arm  206  is rerotated to a horizontal state, and the head part of the subject is covered with the hood  207 . Then, a hot air temperature is set in a panel  205   b , i.e., an air supply temperature and a treatment time are set by means of a heater  203   b , and permanent wave treatment is started. 
     When the treatment is started, power is supplied to the heater  203   b  and atmospheric air is suctioned from an air supply chamber  213 . The suctioned air is introduced into an atmospheric air introducing pipe  203   a , and the introduced atmospheric air is heated by means of the heater  203   b . The heated air is supplied to the hood  207 . On the other hand, suctioning is started in the suction chamber  211  so that the inside of the rod R enters a negative pressure state, and hot air is suctioned from the air distributing hole R 1  of the rod R. Therefore, the hot air in the hood R is suctioned via the hairs, and the suctioned air is introduced into the air and water separating means  204  via the suction pipe  201   a.    
     The moisture contained in the hot air suctioned in this air and water separating means  204  (mainly, permanent wave chemical) is separated, and only the hot water is suctioned into the suction chamber  211 . In the case where the side of the return air supply means  202  is opened in this suction chamber  211 , the hot air is supplied from the suction chamber  211  to the return pipe  202   a . Thus, this hot air is rerotated into the hood  207  via deodorizing means. 
     Then, the hot air from the return pipe  202   a  and the hot air from the air supply pipe  203   a  are supplied to the hood  207 , and thus, the inside of the hood  207  becomes hotter than a case of supplying the hot air from the air supply pipe  203   a . Therefore, power of the heater  203   b  can be reduced, and energy saving can be achieved. 
     Although the hot air is thus supplied into the hood  207 , a sensor always monitors a temperature in the hood  207  or a temperature of hairs. Thus, in the case where the temperature is higher than its initially set temperature, power supply to the heater  203   b  is stopped or power is reduced so as to control the temperature to its predetermined temperature. In addition, in the case where the temperature is reduced, power to the heater  203   b  is increased, and the temperature is controlled to its predetermined temperature, whereby the temperature of the hood  207  is maintained to be constant. 
     Then, after such control has been made, the set time is reached, all operations terminate, and a buzzer or the like driven to notify the fact to a hairdresser. In this manner, the hairdresser rises the arm  206 , removes the rod R while the hood  207  is avoided from the subject&#39;s head part; the tube  8  is pushed into the suction pipe  201   a ; and the cap  83  is engagingly fitted to the ball section  81 , whereby the work terminates. 
       FIG. 20  to  FIG. 23  each show a rod R in another embodiment. In the case of the rod described previously, the inside of the rod enters a closed state other than at the side of the closing member  82  and the air distributing hole R 1 . Thus, if the suctioning is carried out in a state in which hairs are curled, although the chemical applied to the hairs is discharged from a moisture discharge wall R 2 , the chemical is accumulated by using it for an extended period of time. 
     In the present embodiment, a rod R is divided into at least two sections R, R′ along a longitudinal direction (although the rod is divided into two sections in the embodiment, it may be divided into three or four sections. Hereinafter, a description will be given by example of dividing the rod into two sections). A closing member  82  is formed to be integrated with one rod R, one of the divided sections ( FIG. 20 ). Alternatively, at the time of ejection molding of the rod R, two rods R and R′ are formed so that both ends thereof are not separated by coupling them with a thin coupling piece R 3  ( FIG. 21 ). 
     When the rod R is divided in this manner, in the case where dirt occurs inside of the rod R, the rod R is opened, thereby making it possible to clean the inside of the rod. However, if the two rods R and R′ are merely joined with each other, there is a possibility that air leakage occurs at the time of suctioning from the joint. Therefore, a recess R 4   a  and a protrusion R 4   b  are formed on two pairs of rim opposite faces separated from each other, as illustrated, and these recess and protrusion R 4   a  and R 4   b  are engaged with each other, thereby making it possible to prevent air leakage from two edges. 
     However, although significant air leakage can be prevented with such a recess and protrusion, there is a possibility that slight air leakage occurs because a degree of coherence on the rim opposite face divided into two sections is low. Therefore, as shown in  FIG. 22  and  FIG. 23 , the foregoing recess and protrusion R 4   a  and R 4   b  are formed on the rim opposite face at the side of the coupling piece R 3 ; a protrusive stripe R 5   a  with a hook is formed at other one side of other rim opposite face; and an elongated groove R 5   b  having a hook section of the protrusive stripe R 5   a  engaged therewith is formed at the other side thereof, whereby air leakage can be prevented by engagement between the recess and protrusion R 4   a  and R 4   b  at the side of the coupling piece R 3 . In addition, the other side is integrated by engagement between the protrusive stripe  5   a  and the elongated groove R 5   b . Thus, the air leakage from a divisional portion of the rod R is prevented and the rod R can be prevented from being separated during treatment. Of course, the protrusive stripe R 5   a  with a hook and the elongated groove R 5   b  are disengaged from each other at the time of cleaning, thereby enabling division. 
     Although the air distribution hole R 1  has been formed in the shape of an elongated hole at the rod R shown in  FIG. 17  to  FIG. 23 , a proper number of the distributing holes R 1  may be formed on a circumference in the shape of a circular hole. 
     INDUSTRIAL APPLICABILITY 
     The invention relates to a permanent wave treatment method and device which applies the permanent wave treatment to the hair of the subject in a beauty or hair dressing parlor.