Patent Publication Number: US-2021161274-A1

Title: Cosmetic container provided with pump including part made of polyketone material

Description:
TECHNICAL FIELD 
     The present invention relates to a cosmetic container provided with a pump including a part made of a polyketone material and, more particularly, to a cosmetic container provided with a pump including a part made of a polyketone material, wherein the pump functions to pump a cosmetic to the outside and has some part made of the eco-friendly material polyketone, whereby the problems of odor generation and harmfulness of formaldehyde, which is a raw material for the conventional substance polyacetal (polyoxymethylene (POM)), can be eliminated to give the user neither an unpleasant feeling nor irritation, thus allowing the user to use the cosmetic safely. 
     BACKGROUND ART 
     Cosmetics refer to goods which are used for a human body in order to add charming of the human body and change the appearance of the human body to be brighter, or to maintain or enhance skin or hair in a healthy state by making the human body clean and beautiful. 
     When cosmetics are classified according to the purpose of use, cosmetics are classified into facial cosmetics used to remove sebum, waste and contaminants on the skin surface, basic cosmetics used to properly supply moisture and oil to the skin, color cosmetics used to express beautiful colors, hair cosmetics used to protect hair and supply nutrients while removing foreign substances from the hair or scalp, and perfumes used to give fragrance to others by dissolving fragrances in alcohol. 
     As the cosmetics described above have been developed, there is a need to develop various cosmetic containers capable of containing cosmetics. 
     In general, according to the related art, to store and use liquid or gel type cosmetics such as lotions, creams, gels, shampoos, rinses, PITC among cosmetics, becauseasimple container has an opening/closing function, the cosmetics are taken out of the container with a paddle or a finger to be applied to the skin. 
     However, the conventional cosmetic container does not always regulate the amount of cosmetics discharged, so that the cosmetics are wasted. 
     To solve the above problems, as shown in  FIG. 1 , a pump for cosmetics is disclosed in Korean Registered Patent No. 10-1376050, which includes a housing  1  constituting an outer appearance of the pump, a fixed bushing  2  fixedly coupled to an upper portion of the housing  1 , a piston support  3  vertically moved in the housing  1 , a piston  4  fitted to an outside of the piston support  3  and vertically moved together with the piston support  3 , a stem  5  coupled to an upper portion of the piston support  3  and pressed by a button  7 , and a spring  6  elastically supporting the stem  5 , where the fixed bushing  2 , the piston support  3  and the stem  5  are generally made of polyacetal (polyoxymethylene (POM)), which is recyclable and cost-competitive. 
     However, among the pump parts of the related art, since the fixed bushing  2 , the piston support  3  and the stem  5  are formed of polyacetal (polyoxymethylene (POM)), they are worn by friction between parts during long-term use. Accordingly, the sealing force between the pump parts is reduced, and the compression force is reduced, so that the pump is difficult to discharge quantitatively. 
     In addition, because the polyacetal (polyoxymethylene (POM)) used as the pump material of the related art contains formaldehyde in the raw material, which is harmful, stinks by the formaldehyde, and comes into contact with the cosmetic material which is a chemical product, when the cosmetic container is not used for a long time, the odor of formaldehyde is discharged together with the cosmetic material, causing discomfort or irritation to the user. 
     Therefore, it is urgent to find a synthetic resin material that can replace polyacetal (polyoxymethylene (POM)) which has been used as a material for some parts of cosmetic pumps, has excellent wear resistance, is not harmful, and does not stink. 
     DISCLOSURE 
     Technical Problem 
     To solve the problems described above, an object of the present invention is to providea cosmetic container provided with a pump including a part made of a polyketone material, wherein the pump functions to pump a cosmetic to the outside and has some part made of the eco-friendly material polyketone, whereby the problems of odor generation and harmfulness of formaldehyde, which is a raw material for the conventional substance polyacetal (polyoxymethylene (POM)), can be eliminated to give the user neither an unpleasant feeling nor irritation, thus allowing the user to use the cosmetic safely. 
     In addition, another object of the present invention is to providea cosmetic container provided with a pump including a part made of a polyketone material, where, among the parts of the pump, a stem and a fixed bushing and a piston support are formed of poi ketone having better wear resistance than existing materials, so that even if the pump is used for a long time, it is worn by friction between the pump parts. Accordingly the cosmetic container provided with a pump including a part made of polyketone can be reused by continuously dispensing fixed amount of cosmetics by maintaining a stable sealing force and compressive force between the pump parts. 
     Technical Solution 
     According to one aspect of the present invention, there is provided a cosmetic container provided with a pump for pumping a cosmetic material to an outside, 
     wherein the pump includes a housing formed at one side thereof with a cosmetic inlet, a suction valve for opening and closing the cosmetic inlet of the housing, a fixed bushing fixedly coupled to the housing, a piston support formed inside the housing, a piston fitted to an outside of the piston support and tightly closed to an inside surface of the housing, a stem coupled to the piston support, andan elastic member for elastically supporting the stem, and 
     wherein the stern is formed of a polyketone material. 
     According to another aspect of the present invention, there is provided a cosmetic container provided with a pump for pumping a cosmetic material to an outside, 
     wherein the pump includes a housing formed at one side thereof with a cosmetic inlet, a suction valve for opening and closing the cosmetic inlet of the housing, fixed bushing fixedly coupled to the housing, a piston support formed inside the housing, a piston fitted to an outside of the piston support and tightly closed to an inside surface of the housing, a stem coupled to the piston support, and an elastic member for elastically supporting the stem, and 
     wherein the piston support of the pump is formed of a polyketone material. 
     The pump is installed on one side of a container body, and is pressed by a push button. 
     The cosmetic container may further include a pump cap formed on an outside of the pump. 
     The fixed bushing may be formed of the polyketone material. 
     The housing of the pump may be formed of a polypropylene material. 
     The suction valve and the piston may be formed of a low-density polyethylene material. 
     The push button may be formed of a polypropylene material. 
     The stem of the pump may be moved up and down in close contact with an inner peripheral surface of the fixed bushing. 
     Advantageous Effects 
     According to the cosmetic container provided with a pump including a part made of a polyketone material of the present invention, the pump functions to pump a cosmetic to the outside and has some part made of the eco-friendly material polyketone, so that the problems of odor generation and harmfulness of formaldehyde, which is a raw material for the conventional substance polyacetal (polyoxymethylene (POM)), can be eliminated to give the user neither an unpleasant feeling nor irritation, thereby allowing the user to use the cosmetic safely. 
     In addition, according to the cosmetic container provided with a pump including a part made of a polyketone material of the present invention, the stem, the fixed bushing and the piston support among some parts of the pump are formed of polyketone having better wear resistance than existing materials, so that even if the pump is used for a long time, it is worn by friction between the pump parts. Accordingly the cosmetic container provided with a pump including a part made of polyketone can be reused by continuously dispensing a fixed amount of cosmetics by maintaining a stable sealing force and compressive force between the pump parts. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG. 1  is a perspective view showing a compact container according to the related art. 
         FIG. 2  is a perspective view of a cosmetic container according to the present invention. 
         FIG. 3  is an exploded perspective view of a cosmetic container according to the present invention. 
         FIG. 4  is a cross-sectional view of a cosmetic container according to the present invention. 
         FIG. 5  is a partial cross-sectional view of a cosmetic container according to the present invention. 
         FIG. 6  is a cross-sectional view showing a state in which a cosmetic material is discharged to an outside by pressing the push button of cosmetic container according to the present invention. 
         FIG. 7  is a cross-sectional view showing a state in which a cosmetic material is sucked into a housing when the pressure on the push button of a cosmetic container according to the present invention is removed. 
     
    
    
     BEST MODE 
     Mode for Invention 
     Technical objects to be achieved by the present invention and embodiments of the present invention will be apparent through preferable embodiments to be described below. Hereinafter, a compact cosmetics container having an opening/closing button formed in a lid thereof according to the present invention will be described with reference to accompanying drawings. 
       FIG. 2  is a perspective view of a cosmetic container according to the present invention.  FIG. 3  is an exploded perspective view of a cosmetic container according to the present invention.  FIG. 4  is cross-sectional view of a cosmetic container according to the present invention.  FIG. 5  is a partial cross-sectional view of a cosmetic container according to the present invention. 
     A cosmetic container provided with a pump having a part made of a polyketone material, in which the pump  10  pumps a cosmetic material to an outside, includes a housing  11  having a cosmetic inlet  111  formed on one side, a suction valve  12  for opening and closing the cosmetic inlet  111  of the housing  11 , a fixed bushing  13  fixedly coupled to the housing  11 , a piston support  14  formed inside the housing  11 , a piston  15  fitted to an outside of the piston support  14  and tightly closed to an inside surface of the housing  11 , a stem  16  coupled to the piston support  14 , and an elastic member  17  for elastically supporting the stem  16 . 
     As shown in  FIG. 4 , the pump  10  is installed on one side of a container body  20 , and is pressurized by a push button  30 . 
     The container body  20  contains a liquid or gel type cosmetic material therein, and has an opened upper portion. 
     A coupling groove  22  is formed on an upper inner periphery of the container body  20 , and a separation preventing sill  21  is formed on a lower portion of the coupling groove  22 . 
     A ventilation groove  24  is formed on a bottom of the container body  20  to allow external air to flow into the container body  20 . 
     A pushing plate  26  is formed inside the container body  20 , and the pushing plate  26  is in close contact with the inner periphery of the container body  20 , such that the pushing plate moves upward as much as the amount of cosmetics is discharged and exhausted. 
     The push button  30  is installed on an upper portion of the pump  10  to operate while pressing the pump  10 . 
     An outlet  32  for discharging a cosmetic material to an outside is formed on one side of the push button  30 , and an outlet passage  34  for moving the cosmetic material to the outlet  32 , which is formed inside the outlet  32 , is connected to the pump  10 . 
     As shown in  FIG. 4 , a lower inner wall  36  which extends downward and a lower outer wall  38  which extends downward while being spaced apart from an outside of the lower inner wall  36  by a predetermined interval are formed in the push button  30 . 
     The lower inner wall  36  of the push button  30  is coupled to the stem  16  of the pump  10  to move the pump  10  downward. 
     Preferably, the push button  30  is formed of a polypropylene (pp) material. 
     A pump cap  40  is further formed on an upper portion of the container body  10  to surround the outside of the pump  10 . 
     The lower portion of the pump cap  40  is fixedly coupled to the upper portion of the container body  10 , and the push button  30  moves up and down toward the upper side of the pump cap  40 . 
     As shown in  FIG. 4 , an upper inner wall  42  which extend upwardly and an upper outer wall  44  which extends outwardly of the upper inner wall  42  while being spaced apart by a predetermined interval are formed on the pump cap  40 , and a connection plate  44  for connecting the upper inner and outer walls  42  and  44  extends horizontally. 
     A through hole  41  is formed inside upper inner wall  42  of the pump cap  40  to install the pump  10 . 
     A lower end of the upper outer wall  44  is placed on the separation preventing sill  21  of the container body  10  to be prevented from falling into an inside of the container body  10 , and a coupling protrusion  442  is formed on the lower outer periphery of the upper outer wall  41  to be coupled to the coupling groove  22  of the container body  10 . 
     The pump  10  is installed adjacent to the container body  20  to pump the liquid or gel-type cosmetic material contained in the container body  10  to discharge the liquid or gel-type cosmetic material to the outside. 
     As shown in  FIG. 5 , the pump  10  includes a housing  11  formed on one side with a cosmetic inlet  111 , a suction valve for opening and closing the cosmetic inlet  111  of the housing  11 , a fixed bushing  13  fixedly coupled to the housing  11 , a piston support  14  formed inside the housing  11  to move inward or outward, a piston  15  fitted to an outside of the piston support  14  and tightly closed to an inside surface of the housing  11 , a stem  16  coupled to the piston support  14 , and an elastic member  17  for elastically supporting the stem  16 . 
     The housing  11  is coupled through the through hole  41  of the pump cap  40 , and the cosmetic inlet  111  of the housing  11  is located toward the inside of the container body  10 . 
     Preferably, the housing  11  is formed of a polypropylene (pp) material. 
     A receiving sill  112  is formed on the outer periphery of the housing  11  to be placed on an upper end of the upper inner wall  42  of the pump cap  40 , and as shown in  FIG. 4 , a sealing ring  50  may be further formed between the receiving sill  112  and the upper inner wall  42  to enhance the sealing force. 
     A suction valve  12  is formed in the cosmetic inlet  111  of the housing  11 , and serves to introduce or block the cosmetic material contained in the container body  10  into the housing  11 . 
     The fixed bushing  13  is coupled to the upper portion of the housing  11  as shown in  FIG. 5  to seal the inside of the housing  11 , and at the same time, surround the outer periphery of the stem  16 , such that the stem  16  is guided to move vertically without shaking. 
     The piston support  14  moves up and down inside the housing  11 , and an inlet passage  142  through which the cosmetic material stored temporarily in the housing passes is formed on the outer periphery of the piston support  14 . A locking portion.  144  that prevents the piston  15  from falling downward is formed on a lower portion of the piston support  14 . 
     The piston  15  is fitted to the outside of the piston support  14  and moves up and down together with the piston support  14 . The suction valve  12  and the piston  15  of the pump  10  are preferably formed of a low-density polyethylene (LDPE) material having elasticity. 
     The stem  16  connects the push button  30  and the piston support  14  to transmit the vertical movement of the push button  30  to the piston support  14 . 
     As shown in  FIG. 4 , the upper portion of the stem  16  is coupled to the lower inner wall  36  of the push button  30 , and the lower portion is coupled to the piston support  14 . 
     The stem  16  moves vertically while being in close contact with the inner peripheral surface of the fixed bushing  13 , thereby maintaining the sealing force in the housing  11 . 
     According to the related art, the stem  16  and the piston support  14  have been formed of a polyacetal (Polyoxymethylen (POM)) material. However, according to the present invention, the stem  16  and the piston support  14  are formed of a polyketone material to eliminate the problems described below 
     The polyketone is a new polymer material composed of carbon monoxide, ethylene and propylene and is a material excellent in eco-friendliness, wear resistance, chemical resistance (stable properties in acids, oils, bases, and moisture), impact resistance, scratch resistance (scratch reduction), etc. 
     That is, the polyacetal (Polyoxymethylen (POM), which  1 s used as a material for the stem  16  and the piston support  14  according to the related art, contains formaldehyde in the material, and thus has a problem, of harmfulness. When odor is generated by the formaldehyde and is in contact with a cosmetic product which is a chemical product and the cosmetic container is used after not being used for a long time, the odor of formaldehyde is discharged together with the cosmetic material to offend or irritate the user. In addition, when used for a long time, the cosmetic container is worn due to friction between parts, and as a result, the sealing force between pump parts is reduced, so that the compressive force decreases, so it is difficult to quantitatively discharge the cosmetic material and it is impossible to reuse the cosmetic container. 
     Thus, according to the cosmetic container of the present invention, one of the stem  16  and the piston support  14  of the pump  10 , or both the stem  16  and the piston support  14  are made of eco-friendly material, polyketone material to remove the odor and harmfulness generated from formaldehyde, so that the user may safely use the cosmetic container. 
     However, when the pump  10  is operated, the stem  16  causes friction with the inner peripheral surface of the fixed bushing  13  while moving up and down, and the fixed bushing  13  is not only easily worn by the stem  16  formed of polyketone, but also more formaldehyde is discharged from, the fixed bushing  13  formed of a conventional polyacetal (polyoxymethylen (POM)), so that the harmfulness of cosmetics applied to the skin.is enhanced. 
     Accordingly, in the present invention, the fixed bushing  13  is formed of a polyketone material excellent in eco-friendliness, wear resistance, chemical resistance, and scratch resistance, etc., so that it is possible to prevent wear caused by friction between parts of the pump  10  even when being used for a long time and prevent formaldehyde from being discharged, thereby solving the harmfulness problem. In addition, the pump  10  is capable of continuously discharging a fixed amount of cosmetics. 
     As described above, the cosmetic container according to the present invention has some parts of the pump  10  that are formed of polyketone that is more excellent in wear resistance than polyacetal (polyoxymethylen (POM)) and is an eco-friendly material without odor and harmfulness, so that the stability and functionality of the pump  10  are improved. 
     The elastic member  17  elastically supports the stem  16  and is in close contact with a protrusion  162  which has a lower end placed on an upper end of the fixed bushing  13  and an upper end formed on an upper periphery of the stem  16 . 
     Hereinafter, an assembly method and use state of a cosmetic container provided with a pump including a part made of a polyketone material according to an embodiment of the present invention will be described in detail. 
     First, in order to assemble a cosmetic container equipped with a pump having a component of polyketone material according to an embodiment of the present invention, as shown in  FIGS. 3 and 4 , the sealing plate  26  is inserted inside the container body  20 . Then, a liquid or gel cosmetic is filled in the container body  20 . 
     Next, the pump cap  40  is coupled to the upper portion of the container body  20 . In this case, coupling protrusion  442  of the pump cap  10  and the coupling groove  22  of the container body  10  are coupled to each other. 
     Next, as shown in  FIG. 5 , the pump  10  including the housing  11 , the suction valve  12 , the fixed bushing  13 , the piston support  14 , the piston  15 , and the stem  16  is installed into the through hole  41  of the pump cap  40 . When the sealing ring  50  is further formed between the pump cap  40  and the housing  11 , after the sealing ring  50  is fitted to the outside of the housing  11  of the pump  10 , the pump  10  is installed into the through hole  41  of the pump cap  40 . 
     Finally, by assembling the push button  30  on the upper portion of the stem  16  of the pump  10 , the assembly of the cosmetic container provided with a pump including a part made of a polyketone material according to an embodiment of the present invention is completed. 
       FIG. 6  is a cross-sectional view showing a state in which a cosmetic material is discharged to an outside by pressing the push button of a cosmetic container according to the present invention.  FIG. 7  is a cross-sectional view showing a state in which a cosmetic material is sucked into a housing when the pressure on the push button of a cosmetic container according to the present invention is removed. 
     In order to use the cosmetic container provided with a pump including a part made of a polyketone material assembled in the above-described manner, as shown in  FIG. 6 , first the push button  30  is pushed to move the stem  16  of the pump  10  coupled to the push button  30  downward. 
     While the stem  16  of the pump  10  moves downward, the piston support  14  coupled to the lower portion of the stem  16  moves downward together. 
     In this case, since the piston  15  of the pump  10  is in close contact with the inner surface of the housing  11 , as shown in the partially enlarged view of  FIG. 6 , only the piston support  14  moves downward, so that a gap is created between the piston support  14  and the piston  15 , thereby creating a passage for discharging a cosmetic material. 
     Thereafter, when the push button  30  is continuously pressed, the lower end of the stem  16 , which moves downward by the push button  30 , presses the piston  15  so that the piston  15  moves downward with the piston support  14 , thereby reducing the inner volume of the housing  31 . Thus, the suction valve  12  closes the cosmetic inlet  111  by the discharge pressure in the housing  11 , and at the same time, the cosmetic material contained in the housing  11 , which comes out between the piston support  14  and the piston  15 , passes through the inlet passage  142  of the piston support  14  and then, is discharged through the discharge passage  34  of the push button  30  to the outlet  32 . 
     Thereafter, as shown in  FIG. 7 , when the pressure on the push button  30  is removed, the stem  16  is moved upward by the elasticity of the elastic member  17  that elastically supports the stem  16  of the pump  10 , and the piston support  14  coupled to the lower portion of the stem  16  also moves upward. In this case, the locking portion  144  of the piston support  14  pulls up the piston  15 , so that the piston support  14  and the piston  15  move together while the gap between the piston support  14  and the piston  15  is blocked, so the inner volume of the housing  11  increases, thereby generating a vacuum pressure. 
     Thereafter, while the suction valve  12  was lifted by the vacuum pressure generated inside the housing  11 , the cosmetic inlet  111  formed on the bottom surface of the housing  11  is opened, so that the cosmetic material contained in the container body  20  flows into the housing  11  through the cosmetic inlet  111  as shown in the partially enlarged view of  FIG. 7  and at the same time, the pushing plate  26  formed inside the container body  20  move upward as much as the cosmetic material discharged. 
     As described above, the cosmetic container provided with a pump including a part made of a polyketone materialdescribed in this disclosure is an illustrative purpose only, and the present invention is not limited thereto. Thus, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art within the spirit and scope of the present invention and they will fall within the scope of the present invention. 
     DESCRIPTION OF REFERENCE NUMERAL 
     
         
           10 : Pump 
           11 : Housing 
           12 : Suction valve 
           13 : Fixed bushing 
           14 : Piston support 
           15 : Piston 
           16 : Stem 
           17 : Elastic member 
           20 : Container body 
           30 : Pushing button 
           40 : Pump cap 
           50 : Sealing ring