Abstract:
Disclosed is a pencil-type case for allowing pressing a pressure button to discharge liquid content out to a content brush. The container for dispensing a preset quantity of liquid content accommodated in a main body by pressing a pressure button. The container includes: main body including content case to accommodate content in outer body and having pushing member; pumping member including: folding link driven by pressure button; check valve preventing content from flowing backward when content is introduced into cylinder tube via content-introducing hole formed in cylinder tube, and piston pumping content out to content brush of content brush body; and content brush body including: content-introducing tube in which check valve is installed; cam surface adjusting stroke of folding link; and content brush provided at leading end to discharge content of content-introducing tube.

Description:
FIELD OF THE INVENTION 
     The present invention relates to a pencil-type case with a pressure button, which discharges liquid content out to a content brush. More specifically, the present invention relates to a container for dispensing a preset amount of liquid content with the improvement of a pumping member to pump out the content, which may be stably operated anywhere and anytime to discharge the liquid content and enhances the reliability of the container can be enhanced. 
     BACKGROUND OF THE INVENTION 
     Volatile liquid content (hereinafter, referred to as “content”) that is contained and kept in a container loses its original nature if its moisture or volatile solvent is volatilized into air. 
     There are some examples of the content containing moisture or volatile substances such as eyeliner, lip-gloss, lip-color, eye serum, anti wrinkle cream, contents and the like. 
     Preferably, the content is accommodated in a container that minimizes contact with air. Various containers minimizing contact of the content with air are suggested. 
     For example, Korean Utility Model Nos. 0230104, 0396301 and 0396313 patented to the same applicant disclose a container dispensing a preset amount of content by pressing a pressure button. 
     The inventions are configured such that a screw rod rotates when a user presses down a pressure button provided to a body and that a piston screw-coupled to the screw rod transports the content so that a content brush discharges the content to use. The container may dispense a preset quantity of content and prevent the content from being volatilized. 
     However, it is difficult to reduce manufacturing costs because of the complicated mechanisms discharging the content and because more workers are needed for the assembly of the container. Also more assembly time is required due to complicated assembling process, so it is difficult to improve productivity. 
     In order to solve drawbacks of the disclosed containers, Korean Utility Model Nos. 0408260 and 0439672 disclose new containers 
     The new containers are configured to dispense content with repeated operations such that, when a pump tube is compressed by pressing a pressure button installed in a body, content introduced into the pump tube is discharged to a content brush, and that a content-discharging path is closed and a check valve is opened when the external force applied to the pressure button is removed and the pump tube is restores back to its original state so that the content accommodated in the case body is introduced into the pump tube, and are improvements of the containers disclosed in Korean Utility Model Nos. 0230104, 0396301 and 0396313. 
     Containers disclosed in Korean Utility Model Nos. 0408260 and 0439672 are simplified in structure and have a device discharging the content without a precise process so that the difficulty in the manufacturing process is solved, manufacturing costs can be reduced, and the simplicity of the assembling process leads to the reduction of manpower for the assembly of the container; also productivity can be improved, resulting in enabling mass production. 
     The disclosed containers may prevent inferior reliability caused by erroneous function of the device discharging content. However, since the content is discharged only by the operation of compression and restoration of the pump tube, the resilience force of the pump tube should be consistently exhibited. However, since the resilience force of the pump tube varies depending on surrounding conditions (for example, a change in temperature), stable dispensing of the content cannot be achieved. 
     That is, since the resilience force of the pump tube varies whenever to use in low and high temperature areas, the operations of the pump tube become unstable and due to this the preset quantity of content cannot be discharged, resulting in inferiority of reliability. 
     SUMMARY OF THE INVENTION 
     The present invention has been made in view of the drawbacks of containers disclosed in the previously registered Korean Utility Model Registration Nos. 0408260 and 0439672, and the present invention provides a container for dispensing a preset quantity of liquid content with the improvement of a pumping member to discharge the content by repeated operations, during which a folding link is unfolded when a pressure button is pressed and a piston connected to an end of the folding link moves backward to compress a cylinder tube such that the content introduced into the cylinder tube is discharged out a content brush Also, the piston moves forward due to a resilience force of a spring when an external force applied to the pressure button is removed and a content passage is blocked, while a check valve is opened such that the content accommodated in a content case is introduced into the cylinder tube, so that a stable pumping operation can be achieved anywhere without environmental effects. 
     In accordance with an aspect of the present invention, there is provided a container for dispensing a preset quantity of liquid content accommodated in a main body by pressing a pressure button, the container including: the main body including a content case to accommodate the content in an outer body provided with an assembly and having a pushing member moving as the content is reduced; a pumping member including: a folding link driven by the pressure button installed in a button-mounting groove of the outer body; a check valve preventing the content accommodated in the content case from flowing backward when the content is introduced into a cylinder tube via a content-introducing hole formed in the cylinder tube by the movement of the folding link, and a piston pumping the content introduced into the cylinder tube out to a content brush of the content brush body; and the content brush body including: a content-introducing tube in which the check valve preventing the content accommodated in the content case from flowing backward when the content is introduced into the cylinder tube is installed; a cam surface adjusting a stroke of the folding link; and a content brush provided at a leading end to discharge the content of the content-introducing tube. 
     Here, the pumping member includes: the cylinder tube formed with the content-introducing hole and a locking annular rim locked to a fixing tube that is inserted into the outer body and positioned at the leading end of the content case; a piston formed with a content passage opened and closed by an airproof packing installed in the cylinder tube; a content-transferring tube installed at the leading end of the piston to discharge the content passing through the content passage out to the content brush and having a support rim formed on an outer circumference of a rear end adjacent to the leading end of the piston to support an end of a spring; the folding link hinged adjacent to the support rim of the content-transferring tube and extending toward the leading end of the content-transferring tube, wherein some of the extending portion protrudes toward the button-mounting groove of the outer body and is connected to the pressure button. 
     Moreover, the folding link includes: a first link bar hinge including a first hinge block hinged to a hinge shaft formed on the rear end of the content-transferring tube  29  and a second hinge block formed on a position opposed to the first hinge block; and a second tuning fork-shaped link bar split by a width corresponding to a diameter of the content-transferring tube and including rolling wheels provided at the ends, and hinge shafts formed on both ends of an extension bar that is formed at the upper central portion to which the hinge block of the first link bar is connected. 
     The check valves includes opening and closing balls respectively formed in annular rims and the opening and closing ball are provided with diaphragms having content-transferring holes. 
     As described above, a container of the present invention dispenses a preset quantity of liquid content with the improvement of a pumping member to discharge the content by repeated operations, during which a folding link is unfolded when a pressure button is pressed and a piston connected to an end of the folding link moves backward to compress a cylinder tube such that the content introduced into the cylinder tube is discharged out a content brush, and during which the piston moves forward due to a resilience force of a spring when an external force applied to the pressure button is removed and a content passage is blocked, while a check valve is opened such that the content accommodated in a content case is introduced into the cylinder tube. Stable pumping operations can be achieved anywhere without environmental effects and market competitiveness can be guaranteed. 
    
    
     
       BRIEF DESCRIPTION OF THE INVENTION 
         FIG. 1  is a sectional view illustrating a container for dispensing a preset quantity of liquid content according to an embodiment of the present invention; 
         FIG. 2  is an exploded perspective view illustrating a container for dispensing a preset quantity of liquid content according to an embodiment of the present invention; 
         FIG. 3  is an exploded perspective view illustrating main parts of a container for dispensing a preset quantity of liquid content according to an embodiment of the present invention; 
         FIG. 4  is a sectional view illustrating main parts of a container for dispensing a preset quantity of liquid content according to an embodiment of the present invention; 
         FIG. 5  is a view illustrating an operation of pressing a pressure button of a container for dispensing a preset quantity of liquid content according to an embodiment of the present invention to discharge the content; 
         FIG. 6  is a view illustrating an operation of removing an external force applied to the pressure button of a container for dispensing a preset quantity of liquid content according to an embodiment of the present invention resulting in refilling of the content in a cylinder tube; 
         FIG. 7  is a sectional view illustrating a content brush of a container for dispensing a preset quantity of liquid content according to another embodiment of the present invention; 
         FIG. 8  is a sectional view illustrating a content brush of a container for dispensing a preset quantity of liquid content according to still another embodiment of the present invention; and 
         FIG. 9  is a sectional view illustrating a content brush of a container for dispensing a preset quantity of liquid content according to still another embodiment of the present invention. 
     
    
    
     
       
         
               
             
               
               
               
               
             
           
               
                   
               
               
                 &lt;the descriptions of numerical references in the drawings&gt; 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                 10: 
                 main body 
                 11: 
                 outer body 
               
               
                 13: 
                 content case 
                 20: 
                 pumping member 
               
               
                 21: 
                 cylinder tube 
                 23: 
                 piston 
               
               
                 25: 
                 folding link 
                 25a: 
                 first link bar 
               
               
                 25b: 
                 second link bar 
                 27: 
                 spring 
               
               
                 29: 
                 content-transfering tube 
                 30: 
                 content brush body 
               
               
                 31: 
                 content brush 
                 32: 
                 content introducing tube 
               
               
                 40: 
                 pressure button 
                 50, 60: 
                 check valve 
               
               
                 70: 
                 fixing tube 
               
               
                   
               
             
          
         
       
     
     DETAILED DESCRIPTION OF THE INVENTION 
     Hereinafter, exemplary embodiments of the present invention are described in detail with reference to the accompanying drawings. Particular terms may be defined to describe the invention in the best manner. Accordingly, the meaning of specific terms or words used in the specification and the claims should not be limited to the literal or commonly employed sense, but should be construed in accordance with the spirit of the invention. The description of the various embodiments is to be construed as exemplary only and does not describe every possible instance of the invention. Therefore, it should be understood that various changes may be made and equivalents may be substituted for elements of the invention. 
     As shown in  FIGS. 1 to 6 , a container for dispensing a preset quantity of liquid content according to an embodiment of the present invention may be applied to the content, foods, stationery, and medical products. 
     The container for dispensing a preset quantity of liquid content according to an embodiment of the present invention includes a main body  10  having an outer body  11  with an assembly and a content case  13  positioned inside the outer body  11 , a pumping member  20  positioned on a leading end of the outer body  11  to pump the content out in association with an operation of a pressure button  40 , and a content brush body  30  positioned on a leading end of the pumping member  20  and mounted in the content case  13 . 
     The main body  10  includes a content case  13  into which content is accommodated and the outer body  11  positioned outside of the content case  13 . The content case  13  has an opened upper side, a pushing member  13   a  installed therein to push the content accommodated therein up, and an air introducing hole  13   b  allowing the movement of the pushing member  13   a.    
     The outer body  11  mounted outside of the content case  13  has a locking step, formed on an inner side of an end, to which the content brush body  30  is undercut mounted, a button-mounting groove  11   b , formed at a point adjacent to an end (hereinafter, referred to as ‘a leading end’), to which the pressure button  40  is mounted, and an assembly  12  with an air-introducing hole  12   a  undercut mounted on the opposed end (hereinafter, referred to as ‘a rear end’). 
     As such, the assembly  12  is mounted on the rear end of the outer body  11  so that the content case  13  installed in the outer body  11  may be replaced as necessary. In more detail, when the content accommodated in the content case  13  are exhausted, a user separates the assembly  12  from the rear end of the outer body  11  to draw the content case  13  out of the outer case  11 . Then, a new content case  13  filled with content is inserted in the outer body  11  for the connection of the content case  13  with the cylinder tube  21  so that the newly filled content is fed from the content case  13  to the cylinder tube  21 . 
     As such, since the detachable assembly  12  is mounted on the rear end of the outer body  11  such that the content case  13  the content of which is exhausted may be replaced with the new content case  13  with which content is newly filled may be replaced, the container for dispensing a preset quantity of liquid content according to an embodiment of the present invention is conveniently used. 
     The pumping member  20  is mounted inside the leading end of the outer body  11 . The pumping member  20  includes the cylinder tube  21 , a piston  23  reciprocating within the cylinder tube  21 , a content transferring tube  29  into which the content introduced from the piston  23 , and a folding link  25  having a first link bar  25   a  and a second link bar  25   b.    
     The cylinder tube  21  has a rear end having a content-introducing hole  21   a  in which a check valve  50  is installed is connected and connected to the leading end of the content case  13  and a locking annular rim  21   b  locked to a fixing tube  70  that is inserted into the outer case  11 . 
     The piston  23  is installed at the inner side of the cylinder tube  21  to receive an resilient force of a spring  27 . An end of the spring  27  is supported by a support rim  29   a  of the content transferring tube  29  extending from the piston  23  so that the resilient force of the spring  27  is applied to the piston  23 . 
     The piston  23  has a content passage  23   a  selectively opened and closed by an airproof packing  21   c  positioned in the cylinder tube  21  and he content transferring tube  29  extending from the leading end to discharge the content passing through the content passage  23   a  to the content brush  31  of the content brush body  30 . 
     The support rim  29   a  is formed on a rear outer circumference of the content transferring tube  29  to support an end of the spring  27  and hinge shafts  29   b  are formed on both sides of the leading end adjacent to the support rim  29   a  such that hinge blocks  25   a  of the first link bar  25   a  formed in the folding link  25  are hinged thereto. The leading end of the content transferring tube  29  is connected to a content introducing tube  31  of the content brush body  30 . 
     Meanwhile, the folding link  25  reciprocating the piston  23  is made by coupling the first link bar  25   a  to second link bar  25   b . The first link bar  25   a  has a central linking bar (not shown) and an approximate I-shape in viewing from a side and an approximate H-shape in viewing from a front side. The first link bar  25   a  has hinge blocks  25   a ′ and  25   a ″ formed on lateral end thereof. 
     The hinge block  25   a ′ is hinged to the hinge shaft  29   b  of the content transferring tube  29 , while the other hinge block  25   a ″ is connected to hinge shafts  25   b ′ of the second link bar  25   b . That is, the second link bar  25   b  connected to the first link bar  25   a  is split by a width corresponding to a diameter of the content transferring tube  29  and has rolling wheels  25   b ″ formed at ends and the hinge shafts  25   b ′ formed on both ends of an extension bar  25   c  extending from the rolling wheels  25   b ″ and integrated into one body such that the first link bar  25   a  is connected to the hinge shafts  25   b ′. Therefore, the second link bar  25   b  has an approximate tuning fork shape. 
     The folding link  25  is driven when a portion to which the first link bar  25   a  and the second link bar  25   b  are connected is pressed by the pressure button installed in the button-mounting groove  11   b  of the outer body  11 . 
     The content brush body  30  has a rear end undercut mounted to the leading end of the outer body  11 , the content-introducing tube  32  connected to the content transferring tube  29  to allow the content introducing therein and having the check valve  60  opened and closed by the pumping operation of the piston  23 , and a cam surface  33  formed on a portion facing the content-introducing tube  32 , so that a stroke of the folding link  25  may be adjusted by the rotation of the content brush body  30 . 
     The content brush  31  is installed in the leading end of the content-introducing tube  32  such that the content introduced into content-introducing tube  32  may be discharged out to the content brush  31 . 
     In addition, the content brush  31 , as illustrated in  FIGS. 1 ,  2 , and  4  to  6 , may be made in the form of a brush in which hairs are concentrated. The content brush  31  may have an end in the form of a rod with a semi-spherical shape or a slope as illustrated in  FIGS. 7 to 9  or a detachable structure for the convenient replacement. 
     The check valves  50  and  60 , which are respectively installed in the cylinder tube  21  and the content brush body  30 , have opening balls  52  and  62  provided in the annular rims  51  and  61 . The opening balls  52  and  62  include diaphragms  54  and  64  with content-transferring openings  53  and  63 . 
     The content brush  31  of the content brush body  30  is protected by a protective cover  80 . The protective cover  80  is detachably attached to the content brush body  30 . 
     Operations of the container for dispensing a preset quantity of liquid content according to an embodiment of the present invention as described above are described as below. When the content accommodated in the content case  11  of the main body  10  is discharged, the protective cover  80  mounted on the content brush body  30 , as illustrated in  FIG. 4 , is separated from the content brush body  30  and the pressure button  40  installed in the button-mounting groove  11   b  of the outer body  11  is pressed down to drive the pumping member  20 . 
     That is, when the pressure button  40  is pressed down as illustrated in  FIG. 5 , the hinge blocks  25   a ″ and the hinge shafts  25   b ′ connecting the first link bar  25   a  to the second link bar  25   b  of the folding link  25  pivot and the first link bar  25   a  and the second link bar  25   b  are unfolded. 
     As such, when the first link bar  25   a  and the second link bar  25   b  are unfolded, the rolling wheels  25   b ″ of the second link bar  25   b  are supported on the cam surface  33  which forming the rear end of the content brush body  30 , and a moving force is generated from the first link bar  25   a.    
     As described above, the rolling wheels  25   b ″ are supported on the cam surface  33  so that the stroke of the folding link  25  may be adjusted, and thus the stroke of the pumping member  20  may be also adjusted to control a pumping force required to discharge the content out. 
     When the moving force is generated from the first link bar  25   a  on which the rolling wheels  25   b ″ are supported, the content-transferring tube  29  hinged to the hinge blocks  25   a ′ of the first link bar  25   a  moves rearward and the piston  23  connected to the content-transferring tube  29  moves rearward in association with the movement of the content-transferring tube  29 . 
     As such, the piston  23  moves rearward by the content-transferring tube  29 , so that the content introduced into the cylinder tube  21  is fed to the content brush  31  through content passage  23   a  of the piston  23 . 
     In more detail, when the content-transferring tube  29  and the piston  23  move rearward together, the content-introducing hole  21   a  is blocked by the check valve  50  installed in the cylinder tube  21  and the piston  23  is separated from the airproof packing  21   c  to open the content passage  23   a , so that the content is transferred into the content passage  23   a.    
     In this case, the content-introducing tube  32  of the content brush body  30  is opened by which the check valve  60  is pushed and opened by a discharging pressure of the content transferred through the content passage  23   a  and the content introduced through the content-introducing tube  32  is discharged out to the content brush  31 . 
     To the contrary, when the external force, as shown in  FIG. 6 , is removed from the pressed pressure button  40 , the piston  23  moves toward the leading end so that the content accommodated in the content case  13  is introduced into the cylinder tube  21  through the content-introducing hole  21   a.    
     That is, when the external force applied to the pressure button  40  is removed, the piston  23  moves toward the leading end due to the resilient force of the spring  27  an end of which is supported on the support rim  29   a  of the content-transferring tube  29  and a vacuum force is generated in the cylinder tube  21  is generated, so that the check valve  50  blocking the content-introducing hole  21   a  is separated such that the content accommodated in the content case  13  is introduced into the cylinder tube  21  and that the pushing member  13   a  installed in the content case  13  moves toward the leading end as long as the amount of the content introduced into the cylinder tube  21  within the content case  13 . 
     The generation of the vacuum force within the cylinder tube  21  is enabled due to the content-introducing tube  32  blocked by the check valve  60  that is installed on the content-introducing tube  32  of the content brush body  30  to selectively open and close the content-introducing tube  32  repeatedly. 
     As such, after the content is discharged to the content brush  31  by pressing the pressure button  40 , the protective cover  80  is mounted on the content brush body  30  to prevent the content brush  31  from being smeared with the foreign substances. 
     While the present invention has been described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims, and that these changes and modifications fall within the scope of the invention.