Abstract:
A dispenser pump button is designed so as to have a structure in which, when the button body is pressed, a nozzle which is normally positioned within the button body moves forward so as to be exposed to the outside from the button body and enable contents to be discharged, in order to prevent a cap from being contaminated.

Description:
BACKGROUND 
       [0001]    The present invention relates to a dispenser pump button, and in particular to a dispenser pump button which makes it possible to prevent a cap from being contaminated, in such a way that a nozzle is normally positioned in a button body, but when the button body is pressed, the nozzle moves forward and gets exposed to the outside of the button body for thereby discharging contents. 
         [0002]    A dispenser, in general, is engaged to the top of a sealed container filled with gas, liquid or contents and is configured to discharge a certain amount of the contents when it is pressed. The dispenser is applied to various sealed containers which store cosmetics, perfume, drugs or food. At the top of the dispenser is disposed a button with which to press the dispenser. The contents are discharged through the nozzle as the user handles the button. 
         [0003]    At the button of the dispenser is provided a nozzle through which contents are discharged out. The inner sides of the cap of the cosmetic container may be contaminated by the leftover cosmetics which remains in the nozzle after the user used cosmetics. The cosmetic cap is equipped with a button pressing prevention function and a contamination prevention function of the cosmetics. The contaminated cap may further contaminate the cosmetics and may make the exterior of the container look bad. 
         [0004]    In order to prevent the contamination of the cap which occurs as the nozzle is exposed to the outside, there is suggested a structure which makes it possible to discharge contents in a state that the nozzle is positioned in the button. If the contents are discharged in a state that the nozzle is positioned in the button, the cap can be prevented from being contaminated; however it is hard to discharge the contents to where the user wants. In this case, the contents may stain the button or the decorated portions in the middle of the discharge of contents, thus causing more contaminations. 
       SUMMARY OF THE INVENTION 
       [0005]    Accordingly, the present invention is made in consideration of the above mentioned problems. It is an object of the present invention to provide a dispenser pump button which makes it possible to prevent a cap from being contaminated, in such a way that a nozzle is normally positioned in a button body, but when the button body is pressed, the nozzle moves forward and is exposed to the outside of the button body for thereby discharging contents. 
         [0006]    It is another object of the present invention to provide a dispenser pump button which makes it possible to prevent contents from going spoiled, in such a way that the air does not flow in the cosmetic container when it is normally used as a discharge hole of a nozzle is closed with an opening and closing rod provided at a discharge part. 
         [0007]    It is further another object of the present invention to provide a dispenser pump button in which a guide member performs a piston function while a button body moves upward, for thereby sucking in the contents remaining in the nozzle, by which to minimize the remaining amount of the contents in the nozzle, so the contamination of the contents can be prevented, and the problems, which occurs due to the solidification of contents at the nozzle, can be prevented. 
         [0008]    To achieve the above objects, there is provided a dispenser pump button which is positioned at the top of a pumping member and pressurizes the pumping member when a user presses for thereby discharging contents with the aid of pumping operations, comprising a button body which includes a content flow passage formed at an inner center portion for the contents to flow and communicates with the content flow passage, and a discharge part communicating with the content flow passage for thereby discharging the contents; a nozzle which is engaged to the discharge part and discharges out the contents, and moves back and forth when the button body moves up and down and is equipped with a discharge hole at its front side for the sake of discharge of the contents, and a guide groove formed at its side for guiding the forward and backward movements; a guide member which is engaged to the inner side of the button body and is equipped with the guide groove of the nozzle and allows the nozzle to move back and forth when the button body moves up and down; and an elastic part one side of which is supported against the guide member, and the other side of which is supported against the inner side of the button body for thereby allowing the button body to move upward by providing an elastic force in an upward direction. 
         [0009]    In addition, an opening and closing rod is provided at the button body for opening and closing the discharge hole of the nozzle, and the opening and closing rod extends from a bottom wall surface of the discharge part to the top and is vertically bent in a forward direction. 
         [0010]    In addition, part of the bottom of the nozzle is cut away so as to prevent any interference with the opening and closing rod when it is engaged to the discharge part. 
         [0011]    In addition, the guide member comprises a suction part engaged to the content flow passage and providing a piston function of sucking the contents which remains in the nozzle; an engaging part which is formed in a cylindrical shape extending down the suction part and is engaged to the top of the pumping member; and a spring support part which surrounds the suction part and extends from the suction part and forms a mounting part on which to mount the bottom of the elastic part. 
         [0012]    In addition, the guide protrusion comprises a pair of protrusion pieces protruding upward from the center of the suction part, and a guide bar which connects the protrusion pieces at the end portions of the protrusion pieces and is engaged to the guide grove. 
         [0013]    In addition, a content inflow hole is formed at the bottom of the guide protrusion for flowing in the contents which move through the engaging part. 
         [0014]    In addition, the button body includes an extension part which surrounds the content flow passage at an outer side of the content flow passage and extends downward, and a fixing part is engaged to the extension part so as to fix the guide member to the button body and is hollow. 
         [0015]    The present invention makes it possible to prevent a cap from being contaminated, in such a way that a nozzle is normally positioned in a button body, but when the button body is pressed, the nozzle moves forward and is exposed to the outside of the button body for thereby discharging contents. 
         [0016]    The present invention makes it possible to prevent contents from going spoiled, in such a way that the air does not flow in the cosmetic container when it is normally used as a discharge hole of a nozzle is closed with an opening and closing rod provided at a discharge part. 
         [0017]    In addition, the guide member has a piston function when the button body moves upward for thereby sucking in the contents remaining in the nozzle, by which to minimize the remaining amount of the contents in the nozzle, so the contamination of the contents can be prevented, and the problems, which occur due to the solidification of contents at the nozzle, can be prevented. 
     
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         [0018]      FIG. 1  is a disassembled perspective view illustrating a construction of a dispenser pump button according to a preferred embodiment of the present invention. 
           [0019]      FIG. 2  is a cross sectional view illustrating a construction of a dispenser pump button according to a preferred embodiment of the present invention. 
           [0020]      FIG. 3  is a perspective view illustrating an engaged state of a nozzle and a guide member of a dispenser pump button according to a preferred embodiment of the present invention. 
           [0021]      FIG. 4  is a cross sectional view illustrating a state that a dispenser pump button is engaged to a container body according to a preferred embodiment of the present invention. 
           [0022]      FIGS. 5 and 6  are views illustrating the operation states of a dispenser pump button according to a preferred embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0023]    The present invention will be described with reference to the accompanying drawings. The same reference numerals of each drawing represent the same elements. 
         [0024]      FIG. 1  is a disassembled perspective view illustrating a construction of a dispenser pump button according to a preferred embodiment of the present invention.  FIG. 2  is a cross sectional view illustrating a construction of a dispenser pump button according to a preferred embodiment of the present invention.  FIG. 3  is a perspective view illustrating an engaged state of a nozzle and a guide member of a dispenser pump button according to a preferred embodiment of the present invention. 
         [0025]      FIG. 4  is a cross sectional view illustrating a state that a dispenser pump button is engaged to a container body according to a preferred embodiment of the present invention.  FIGS. 5 and 6  are views illustrating the operation states of a dispenser pump button according to a preferred embodiment of the present invention. 
         [0026]    The present invention is directed to a dispenser pump button which is disposed at the top of a dispenser container and moves up and down when a user presses, and presses a pumping member  30 . Here the typical dispenser container comprises a container body  10  which stores contents and is equipped with a piston  11  disposed at an inner lower portion and ascending and descending in the middle of the use of the content, a support part  20  which is engaged to the top of the container body  10  and supports the pumping member  30 , a pumping member  30  which is engaged to the top of the support part  20  and performs a pumping operation when the button member is pressed, and an over cap  40  which surrounds the pumping member and is engaged to the top of the container body  10 . 
         [0027]    The container body  10 , the support part  20 , the pumping member  30  and the over cap  40  are already open to public, so the descriptions thereon will be omitted. The construction of the dispenser pump button according to the present invention will be described in details. 
         [0028]    As shown in  FIGS. 1 to 6 , the dispenser pump button according to a preferred embodiment of the present invention comprises a button body  100 , a nozzle  200 , a guide member  300  and an elastic part  400 . 
         [0029]    The button body  100  is disposed at the top of the pumping member  30  engaged to the container body  10  and pressurizes the pumping member  30  when the user presses it for thereby discharging contents based on the pumping operations. 
         [0030]    To the top of the container body  10  is engaged the support part  20  which supports the pumping member  30 . At the inner lower end of the container body  10  is disposed a piston  11  which ascends and descends in the middle of the use of the contents. 
         [0031]    At an inner center portion is formed a content flow passage  110  through which the contents flow. At an end portion of the content flow passage  110  is formed a discharge part  120  which communicates with the content flow passage  110  for thereby discharging contents. 
         [0032]    The present invention has features in that at the button body  100  is provided an opening and closing rod  121  which opens and closes a discharge hole  210  of the nozzle  200 . The opening and closing rod  121  extends upward from the lower wall surface of the discharge part  120  and vertically bends forward for thereby opening and closing the discharge hole  210  when the nozzle  200  moves back and forth. When the cosmetic container is not used, the discharge hole  210  of the nozzle  200  is closed so as to prevent the input of the air into the button body  100 , so the spoilage of the contents can be prevented. 
         [0033]    The opening and closing rod  121  is integrally formed at the button body  100 . It is therefore possible to reduce the manufacture time which takes when separately manufacturing the opening and closing rod  121  and assembling it to the button body  100 . 
         [0034]    In the button body  100  is formed an extension part  130  which extends downward as if it surrounds the content flow passage  110  along an outer side of the content flow passage  110 , and to the extension part  130  is engaged a fixing part  500  having a hollow part  510  for thereby supporting the guide member  300 , so it is possible to prevent an escape of the guide member  300  from the button body  100 . 
         [0035]    The nozzle  200  is engaged to the discharge part  120  for thereby discharging out the contents and moves back and forth when the button body  100  moves up and down, and at its front part is formed a discharge hole  210  through which to discharge contents, and at its side part is formed a guide groove  220  so as to guide the forward and backward movements. 
         [0036]    It is preferred that part of the lower end of the nozzle  200  is cut away so as to prevent any interference which may occur due to the presence of the opening and closing rod  121  when it is engaged to the discharge part  120 . 
         [0037]    The guide member  30  is engaged to an inner side of the button body  100  and allows the nozzle  200  to move back and forth when the button body  100  moves up and down and comprises a suction part  310 , an engaging part  320 , a spring support part  330  and a guide protrusion  340   
         [0038]    The suction part  310  is engaged to the content flow passage  310 . In the present invention, as shown in  FIG. 6 , the suction part  310  provides a piston function through which to suck the contents which remains in the nozzle  200  by the distance that the button body  100  moves along when the button body  100  moves upward, by means of which it is possible to reduce in maximum the amount of contaminants which remain in the nozzle  200  and are stuck to in the nozzle. 
         [0039]    The engaging part  320  extends down the suction part  310  and is engaged to the top of the pumping member  30  and fixes the guide member  300  to the pumping member  30  and transfers the pumping member  30  a press force when the button body  100  is pressed. 
         [0040]    It is preferred that the engaging part  320  is formed in a cylindrical shape the inner side of which is hollow so as to move the contents discharged from the pumping member  30 . 
         [0041]    The spring support part  330  surrounds the suction part  310  and extends from the suction part  310  and forms a mounting part  331  for mounting the bottom of the elastic part  400  for thereby supporting the bottom of the elastic part  400 . 
         [0042]    The guide protrusion  340  protrudes upward from the center of the suction part  310  and is engaged to the guide groove  220  and allows the nozzle  200  to move back and forth when the button body  100  moves up and down and comprises a pair of protrusion pieces  341  protruding upward from the center of the suction part  310 , and a guide bar  342  which connects the protrusion pieces  341  at the end portions of the protrusion pieces  341  and is engaged to the guide grove  220 . 
         [0043]    It is preferred that a content inflow hole  343  is formed at the bottom of the guide protrusion  340  for the contents moving through the engaging part  320  to flow through the content inflow hole  343 . 
         [0044]    The elastic par  400  is positioned at the inner side of the button body  100  and contracts when the user pressurizes the button body  100  and releases when the pressurization by the user is released and provides an elastic force in an upward direction for thereby allowing the button body  100  to move upward. One side of the elastic part  400  is supported against the mounting par  331  of the guide member  300 , and the other side of the same is supported against the inner side of the button body  100 . 
         [0045]    The operations of the dispenser pump body according to a preferred embodiment of the present invention will be described with reference to  FIGS. 5 and 6 .  FIGS. 5 and 6  are views illustrating the operation states of a dispenser pump button according to a preferred embodiment of the present invention. 
         [0046]    As shown in  FIGS. 5 and 6 , according to the dispenser pump button according to a preferred embodiment of the present invention, when the user pressurizes the button body  100 , the button body  100  moves downward. At this time, the nozzle  200  moves forward by the guide protrusion  340  of the guide member  300 , and the button body  100  gets to expose to the outside, and the discharge hole  210  which remains closed by the opening and closing rod  121  gets opened. When the button body  100  is further pressed in a state that the nozzle  200  is exposed to the outside, the engaging part  320  engaged to the pumping member  30  transfers the pressure to the pumping member  30 , so the pumping member starts pumping. As a result, the contents stored in the container body  10  rises and can be finally discharged to the outside through the discharge hole  210  of the nozzle  200 . 
         [0047]    When the user releases the pressurized state of the button body  100 , the elastic part  400  which remains contracted by the pressurization of the button body  100  gets to release for thereby providing an elastic force in an upward direction. At this time, the nozzle  200  moves backward by the guide protrusion  340  of the guide member  300  and is inserted into the button body  100 , so the nozzle  200  hides in the interior of the button body  100 . When the nozzle  200  is inserted into the interior of the button body  100 , the discharge hole  210  of the nozzle  200  is closed by the opening and closing rod  121 , so the air is prevented from flowing into the interior of the button body  100 , whereby the spoilage of the contents can be prevented. 
         [0048]    According to the present invention, the nozzle  20  normally remains hidden in the interior of the button body  100 . When in use, the nozzle  200  gets exposed to the outside for thereby discharging contents. So, it is possible to prevent any contamination of the nozzle which used to happen as the nozzle is being exposed to the outside and to prevent any contamination for thereby improving the construction of the dispenser pump body. 
         [0049]    The construction that the opening and closing rod  121  extends from the bottom wall surface of the discharge part  120  to the top and is vertically bent in the forward direction was described above; however it may extend downward from the top wall surface of the discharge part  120  and may be vertically bent in the forward direction. In this case, part of the end of the top of the nozzle  200  may be cut away. 
         [0050]    As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described examples are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.