Abstract:
A supersonic beauty treatment device capable of effecting a beauty treatment for the skin and of slimming a selected portion of the body. A face beauty treatment head and body beauty treatment head are prepared, and either one is selectivley attached to the casing of the device. The casing has a tepped receptacle made on its front. Each head has a plug projecting from its base. The plug has threads fromed on its outer circumference. Thus, the head can be attached to the casing by screwing the plug in the receptacle, and two sets of switch contacts are formed on both sides of the center of the insulating bottoem of the receptacle. The electrically conductive inner circumference wall of the receptacle is grounded. The plug has a contact formed at its center, corresponding to the center contact of the receptacle. The plug has an electricaly conductive key formed on its base, corresponding to the set of switch contacts whereas the plug has an electronically conductive key formed on its base, corresponding to the set of switch contacts. Each plug has its sides grounded.

Description:
TECHNICAL FIELD 
     The present invention relates to a supersonic beauty treatment device whose head can radiate supersonic wave for effecting a beauty treatment for the skin or for slimming the body. 
     BACKGROUND ART  
     Supersonics is sound vibrations with strong energy, and is capable of destroying germ bodies, exfoliating the superficial layer of skin, causing the cleaning effect and generating heat. Application of the supersonic wave to the face will effectively cause sterilization of the superficial layer of skin, exfoliation of waste matter and corneum, removal of pimples from the face, and removal fat or remaining cosmetic emulsion from pores of the skin. Thus, the face can be cleaned, and circulation of the blood can be expedited to activate the tissue or texture. Also, relaxation of muscles is caused, and spots, wrinkles or sags can be removed. 
     Application of the supersonic wave to the waste flesh of the body causes generation of heat deep under the skin to decompose the subcutaneous fat, thereby slimming the selected part of the body. 
     The subcutaneous fat thus decomposed can be absorbed in blood vessels or lymphatic vessels as waste. 
     Application of a relatively low-power, high-frequency supersonic wave to the skin will the cleaning effect on the skin. In contrast, the slimming effect is caused by the heat generated from application of the relatively high-power, low-frequency supersonic wave. 
     Producing the relatively low-power, high-frequency supersonic wave needs use of a relatively light, small head, and use of a high-frequency ac power supply capable of providing a reduced electric power at an increased frequency. Conversely, producing the relatively high-power, low-frequency supersonic wave needs use of a relatively heavy, large head, and use of a high-frequency ac power supply capable of providing an increased power at a reduced frequency. 
     To meet these requirements it is necessary that two types of supersonic beauty treatment devices, one having a large, heavy head and a low frequency-and-high power drive and the other having a small, light head and a high frequency-and-low power drive be prepared. 
     Supersonic beauty treatment devices have been widely used at home. From the economical point of view it is not advantageous that two different types of beauty treatment devices are prepared for home use, and it is inconvenient that such different devices be used for different purposes. 
     What is aimed at in the present application, therefore, is to provide a single supersonic device capable of effecting a beauty treatment for the skin and of slimming the body. 
     SUMMARY OF THE INVENTION 
     To attain this objective a supersonic beauty treatment device according to the present invention comprises: large and small heads each equipped with a supersonic vibrator, either head being detachably fixed to the casing of the device via connector means having one common interface, and being adapted to be applied to the skin; and an ac high-frequency power supply connected to the supersonic vibrator of either head for supplying it with drive power, as defined in claim  1 . 
     In a supersonic beauty treatment device of claim  1  its connector means may have terminals to connect the supersonic vibrator to the ac high-frequency power supply, as defined in claim  2 . 
     In a supersonic beauty treatment device of claim  1  its connector means may have a switching unit built therein for selecting a desired frequency among those provided by the ac high-frequency power supply, as defined in claim  3 . 
     In a supersonic beauty treatment device of claim  1  its connector means may have another switching unit built therein for selecting a desired quantity of electric power among those provided by the ac high-frequency power supply, as defined in claim  4 . 
     In a supersonic beauty treatment device of claim  1  the ac high-frequency power supply and the supersonic vibrator are built together in the connector means, as defined in claim  5 . 
     In a supersonic beauty treatment device of claim  1  the small and large heads are allotted to face and body beauty treatments respectively, as defined in claim  6 . 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a front view showing the separate parts of a supersonic beauty treatment device according to one embodiment of the present invention; 
         FIG. 2  is a side view showing, in cross section, the separate parts of the supersonic beauty treatment device; 
         FIG. 3  is a block diagram of an ac high-frequency transformer; 
         FIG. 4  is a front view of a supersonic beauty treatment device according to another embodiment of the present invention; 
         FIG. 5A  is a rear view of a head for face treatment whereas  FIG. 5B  is a side view of the head; 
         FIG. 6A  is a rear view of a head for body treatment whereas  FIG. 6B  is a side view of the head; 
         FIG. 7  is a side view of the supersonic beauty treatment device of  FIG. 4  with the face treatment head of  FIG. 5  attached thereto; and 
         FIG. 8  is a block diagram of an ac high-frequency transformer built in the supersonic beauty treatment of  FIG. 4 . 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The accompanying drawings show supersonic beauty treatment devices according to preferred embodiments of the present invention. 
       FIGS. 1 and 2  show the separate parts of a supersonic beauty treatment device according to one embodiment of the present invention. 
     The supersonic beauty treatment device includes two heads  2  and  3  detachably attached to its casing  1 , one being used in the beauty treatment for the face and the other for slimming the body. 
     The casing  1  has a female tapped socket  11  made on its upper, front side, and the male plug  21  or  31  of either head  2  or  3  has threads on its circumference to mate with the female tapped socket. 
     Otherwise, the male plug  21  or  31  may be so sized and shaped that it may be press-fitted in the female socket  11  rather than threadedly engaged with the tapped socket. 
     The socket  11  has a center contact  12  on its insulating bottom, and two sets of switch contacts  13   a  and  13   b  are arranged diametrically symmetrical with respect to the center contact  12 . 
     The circular wall of the socket  11  is electrically conductive, and is grounded. 
     The male plug  21  or  31  has a convex contact  22  or  32  at the center of its insulating top, corresponding to the concave contact  12  of the socket  11 . Also, a key  23   a  is formed on the plug  21  as a counter part to the set of switch contacts  13   a  of the socket  11 , and a key  33   b  is formed on the plug  31  as a counter part to the set of switch contacts  13   b  of the socket  11 . The plug  21  or  31  when mated with the socket  11  can be grounded as its conductive circumference is put in contact with the circular wall of the socket  11 . 
     The set of switch contacts  13   a  or  13   b  can be closed or opened by putting the keys  23   a  or  33   b  on or apart from the set of switch contacts  13   a  or  13   b . The set of switch contacts  13   a  or  13   b  may be of the stationary type or of the depressible type, which is responsive to insertion of the male plug for depressing and turning on. 
     The casing  1  has an ac high-frequency power supply  5 , an LED lamp  6  and a push switch  7  mounted on its substrate  4 . 
     The LED lamp  6  and the push switch  7  appear in the openings made on the front side of the casing  1 . 
     The LED lamp  6  turns on when the power supply is put in circuit, and it turns off when the power supply is disconnected from the circuit. 
     The push switch  7  performs the “on” and “off” control of the power supply as follows: the first push of the push switch  7  will put the high-frequency power supply  5  in operation, and the second push will put it in inoperative condition, thus providing no voltage at its output terminal. 
     The high-frequency power supply  5  may be equipped with a timer for setting a predetermined length of time for treatment. 
     The head  2  or  3  is like a circular cylinder in appearance. The circular cylinder has a cap-like vibrator  24 ,  34  applied to its front top. A supersonic vibrator element  25 ,  35  such as a piezoelectric element or ceramics is fixed to the rear side of the cap  24 ,  34 . 
     The head  2  or  3  is made of a soft, electrically insulating material such as a synthetic resin, permitting the vibrator  24 ,  34  to vibrate freely. 
     The vibrator  24 ,  34  is a thin sheet of flexible metal such as copper, stainless steel, or light, hard metal such as aluminum, titanium, or duralumin, which metal sheet is hard chrome plated. The vibrator  24  of the head  2  for face treatment is relatively small whereas the vibrator  34  of the head  3  for body treatment is relatively large. 
       FIG. 3  shows a wiring diagram of a high-frequency ac power supply used in a supersonic beauty treatment device according to one embodiment of the present invention. 
     The high-frequency power supply  5  comprises an oscillator  51 , a coupling transformer T 1  whose primary winding is connected to the oscillator  51 , an amplifier  52  connected to the secondary winding of the coupling transformer T 1 , and an output transformer T 2  whose primary winding is connected to the amplifier  52 . 
     One terminal of the secondary winding of the output transformer T 2  is connected to the center terminal  2  of the socket  11 , and to one of the switch contacts  13   a  of one set and one of the switch contact  13   b  of the other set, and the other terminal of the secondary winding of the output transformer T 2  is grounded. 
     The other switch contacts  13   a  and  13   b  are connected to a face-treatment feed-back circuit  531  and to a body-treatment feed-back circuit  532 . 
     Alternatively two high-frequency power supplies  5  of different frequencies and oscillation powers may be prepared for effecting a beauty treatment for the face and for slimming the body, and these power supplies may be built in the heads  2  and  3 . In this case the switching contacts  13   a  and  13   b  can be omitted. 
     One terminal of the supersonic vibrator element  25  in the face beauty treatment head  2  is connected to the center contact  22  of the plug  21 , and the other terminal of the supersonic vibrator element  25  is grounded. 
     When the plug  21  is inserted in the receptacle  11 , the electrically conductive key  23   a  of the plug  21  is laid across the set of switch contacts  13   a  to permit electric current to flow therebetween. 
     One terminal of the supersonic vibrator element  35  in the body beauty treatment head  3  is connected to the center contact  32  of the plug  31 , and the other terminal of the supersonic vibrator element  35  is grounded. 
     When the plug  31  is inserted in the receptacle  11 , the electrically conductive key  33   b  of the plug  31  is laid across the switch contacts  13   b  to permit electric current to flow therebetween. 
     The supersonic beauty treatment device of  FIGS. 1 to 3  is constructed as described above. In effecting a required beauty treatment for the skin, first, the plug  21  of the face beauty treatment head  2  is screwed into the receptacle  11 . When the head  2  is fastened to the casing  1  of the device, the supersonic vibrator element  25  of the head  2  is connected to the high-frequency ac power supply  5 . 
     Then, the face treatment feed-back circuit  531  is connected between the power transformer T 2  and the oscillator  51  via the closed switching contacts  13   a.    
     A certain medium such as cream or emulsion is applied to a selected skin area to be treated or to the head  2 , thereby increasing the supersonic transmission efficiency, and then, the push switch  7  is depressed to make the power supply turn on. 
     The ac voltage of high frequency is applied to the supersonic vibrator element  25  to cause the bending deformation of the vibrator element  24  to produce the supersonic vibration. 
     The face treatment feed-back circuit  531  causes the oscillator  51  to oscillate at the same high-frequency as the supersonic vibrator element  25 , thus feeding back the supersonic vibrator element  25  with the oscillating power of a relatively low level, at which the drive circuit is set for the face beauty treatment. 
     When the supersonic oscillation starts, the head  2  is lightly applied to the skin at right angles, and it is slowly moved to draw circles on the face. 
     Thus, the skin is patted by supersonic vibration to raise and remove fat, waste matter or remaining cosmetic emulsion from the pores, exfoliate the old superficial skin layer, and remove corneum and pimples from the face without danger and pain. 
     Extensive distribution of supersonic vibration on the face effectively expedites circulation of the blood, thereby activating the tissue or texture. Also, relaxation of muscles is caused, and spots, wrinkles or sags can be removed. 
     In effecting the slimming treatment on the body, first, the plug  31  of the body treatment head  3  is screwed into the socket  11 . When the head  3  is fastened to the casing  1  of the device, the supersonic vibrator element  35  of the head  3  is connected to the high-frequency ac power supply  5 . 
     Then, the body treatment feed-back circuit  532  is connected between the power transformer T 2  and the oscillator  51  via the closed switching contacts  13   b.    
     A certain medium such as cream or emulsion is applied to a selected body area to be treated or the head  3 , thereby increasing the supersonic transmission efficiency. 
     Then, the push switch  7  is depressed to make the power supply  5  turn on. The ac voltage of high frequency is applied to the supersonic vibrator element  35  to cause the bending deformation of the vibrator element  35  to produce the supersonic vibration. 
     The body treatment feed-back circuit  532  causes the oscillator  51  to oscillate at the same low-frequency as the supersonic vibrator element  35 , thus feeding back the supersonic vibrator element  35  with the oscillating power of a relatively high level, at which the drive circuit is set for the body beauty treatment. 
     When the supersonic oscillation starts, the head  3  is lightly applied to the skin at right angles, and it is slowly moved to draw circles on the skin. 
     Thus, the skin is patted by supersonic vibration to generate heat deeply under the skin, thereby decomposing and removing the subcutaneous fat. 
       FIGS. 4 to 8  show a supersonic beauty treatment device according to another embodiment of the present invention. 
     In this particular embodiment the face or body beauty treatment head  2  or  3  has a tapped hole  41  made on its rear side, and a socket  11  has a stud  42  standing at its center. The head  2  or  3  can be fixed to the body of the device by screwing the stud  42  into the tapped hole  41  of the head  2  or  3 . 
     The face beauty treatment head  2  has three concentric electrode rings  43 ,  44  and  45  formed on its rear side. The body beauty treatment head  3  has two concentric electrode rings  46  and  47  formed on its rear side. 
     The size of the inner ring  46  of the body beauty treatment head  3  is equal to the total size of the innermost and intermediate rings  43  and  44  of the face beauty treatment head  2 , and the diameter of the outer ring  47  of the head  3  is equal to that of the outermost ring  45  of the head  2 . 
     The socket  11  has three contacts S 1 , S 2  and S 3  formed at different radial distances on its bottom, so that the electrode rings  43  to  45 , or  46  and  47  of the head  2  or  3  may be put on these contacts S 1 , S 2  and S 3  when the head  2  or  3  is screwed in the receptacle  11 . 
     In case that the face beauty treatment head  2  is fastened to the body of the device, the electrode rings  43 ,  44  and  45  are put on the contacts S 1 , S 2  an S 3 , as seen from  FIG. 7 . In case that the body beauty treatment head  3  is fastened to the body of the device, the wide electrode ring  46  is put on the contacts S 1  and S 2 , and the narrow electrode ring  47  is put on the contact S 3  (drawings omitted). 
       FIG. 8  shows a wiring diagram of a drive circuit for driving the supersonic vibrator element of the head  2  or  3 . The drive circuit is installed in the supersonic beauty treatment device. The supersonic vibrator element such as a piezoelectric element Pf is connected between the contacts S 1  and S 3  via the electrode rings. 
     When the face beauty treatment head  2  is used, the switches SW 1 , SW 2  and SW 3  are opened to provide the piezoelectric element Pf with a relatively high-frequency, low-electric power for vibration. 
     When the body beauty treatment head  3  is used, the wide electrode ring  46  is put on the contacts S 1  and S 2  to close the switch SW 1 , and then the other switches SW 2  and SW 3  are closed together. 
     The switch SW 1  can make a decision as to which type of head is used, the face beauty treatment head or the body beauty treatment head. 
     The closure of the switch SW 1  causes the voltage appearing between the contacts S 1  and S 3  to lower in frequency, so that a relatively low-frequency, high-electric power may be applied to the piezoelectric element Pf of the body beauty treatment head  3  for vibration. 
     The switch SW 2  is used for controlling the gain of the drive circuit whereas the switch SW 3  is used for controlling the frequency of the drive circuit. 
     In the embodiment of  FIGS. 4 to 8  the face and body beauty treatment heads  2  and  3  can have one and same drive circuit in common. The drive circuit is responsive to attachment of which type of head  2  or  3  for driving its supersonic vibrator at low or high frequency. 
     As may be understood from the above, a supersonic beauty treatment device according to the present invention is equipped with a connector functioning as a common interface for attaching large and small heads to the body of the device. 
     The vibrating energy can be automatically controlled in respect of frequency and power to meet the type of beauty treatment simply by selecting and attaching the head to the body of the device. Thus, the range of supersonic beauty treatment is expanded.