Patent Publication Number: US-2013230347-A1

Title: Slide type lipstick case structure

Description:
BACKGROUND 
     1. Field 
     The present invention relates to a lipstick case structure, and more particularly, to a slide type lipstick ‘case structure which is configured wherein a protection cap adapted to surround the outer periphery of a lipstick is coupled to a body through a triple spiral in such a manner as to be moved up and down by means of rotation manipulations, thereby allowing the lipstick to be extracted out of the body and to be retracted into the body. 
     2. Description of the Related Art 
     Generally, a lipstick, which is one of cosmetic products used for making a user&#39;s face look beautiful, is generally mounted into a case adapted to allow the lipstick to be moved up and down manually, and so as to use the lipstick, a cover of the lipstick case structure is open to make the lipstick extracted out of the interior of the case. According to the typical lipstick case structure, if a lower tube is rotated in a state where a lipstick-inserted tube is taken by a user&#39;s fingers, a rotary tube disposed at the inside of the lower tube is rotated so that guide protrusions of the lipstick-inserted tube are moved up and down along spiral grooves formed on a guile tube to cause the lipstick to be extracted out of the lipstick-inserted tube and to be retracted into the lipstick-inserted tube. Next, the lipstick extracted from the top end periphery of the lipstick-inserted tube is applied to the user&#39;s lips. 
     The lipstick, one of cosmetic products for make-up, is applied to lips, and thus, the lipstick is mounted in the case for coloring the lips directly or by means of a separate brush rod. 
     The lipstick case structure is twistedly rotated to cause the lipstick to be moved up from the interior of a case and at the same time to be extracted out of the front end periphery of the case, thereby applying the lipstick protruded from the case to the lips. In this case, a separate inner case is inserted into the case, that is, an outer case, so that the lipstick can be moved up and down from the outer case through the coupling structure between the outer case and the inner case. 
     Moreover, the outer case is made with various colors and designs, thereby satisfying a user&#39;s various preferences. 
       FIG. 1  is a separate perspective view showing a lipstick case structure of the prior art. As shown in  FIG. 1 , the lipstick case structure of the prior art largely includes a holder  10 , a guide tube  20 , and a rotary tube  30 , and further has a lower case  40  coupled to the lower outer periphery of the guide tube  20  if necessary and a cover  50  coupled to the upper outer periphery of the guide tube  20 . 
     At this time, the holder  10  has a lipstick  12  having various colors and shapes mounted on the top side thereof, and it further has two elevating protrusions  11  formed on both sides of the outer periphery thereof. 
     The guide tube  20  has vertical guide slots formed on both sides thereof. 
     The rotary tube  30  has a spiral groove  31  formed on the inner periphery thereof. 
     Accordingly, the holder  10  is inserted into the guide tube  20  in such a manner as to allow the elevating protrusions  11  thereof to be inserted into the guide slots  21  of the guide tube  20 , and the rotary tube  30  is inserted into the outside of the guide tube  20  in such a manner as to allow the elevating protrusions  11  of the holder  10  protruded through the guide slots  21  to be located in the spiral groove  31  thereof. 
     In the above-mentioned coupling state, as a result, if the guide tube  20  or the rotary tube  30  is twistedly rotated or both of them are twistedly rotated in opposite directions to each other, the holder  10  is moved up and down inside the guide tube  20 , and the lipstick  12  is extracted out of the guide tube  20  and is retracted into the guide tube  20 . 
     If the rotary tube  30  is rotated in one side direction thereof, the spiral groove  31  is rotated to cause the elevating protrusions  11  located in the spiral groove  31  to be moved up along the inclined portion of the spiral groove  31 . Since the elevating protrusions  11  are located in the guide slots  21 , they are moved up only within the range of the interior of the guide slots  21  to cause the lipstick  12  to be protruded in a vertical direction. 
     The lipstick case structure of the prior art having the above-mentioned operating configuration is operated to convert the rotary motions of the guide tube  20  and the rotary tube  30  into the linear motion of the holder  10 , thereby allowing the lipstick  12  to be extracted out of the guide tube  20  and to be retracted into the guide tube  20 . 
     However, the conventional lipstick case structure is made by coupling a plurality of parts like the holder  10 , the guide tube  20 , the rotary tube  30  and the lower case  40 , which causes the manufacturing cost thereof to be undesirably raised. 
     Further, the coupling of the plurality of parts causes the man hours to be increased to make the productivity undesirably deteriorated. 
     SUMMARY 
     Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a slide type lipstick case structure which is configured wherein a protection cap adapted to be moved up and down by means of rotation manipulations is coupled to a body, so that the lipstick is extracted out of the body at the time when the protection cap is moved down. 
     To accomplish the above object, according to the present invention, there is provided a slide type lipstick case structure including: a body having a mounting portion formed on the center thereof, into which a lipstick is mounted; a protection cap coupled through triple spirals to the outer periphery of the body in such a manner as to be moved up and down by means of rotation, thereby allowing the lipstick to be exposed to the outside or inserted into the body; and a cover adapted to open and close the upper portion of the body into which the protection cap is mounted. 
     According to the present invention, preferably, the body has an elevating passage formed between an inner tube and an outer tube spaced apart from each other by a given distance, along which the protection cap is moved up and down by means of the triple spiral, and the elevating passage has escape prevention means formed thereon in such a manner as to be engaged with the lower end of the protection cap, thereby preventing the protection cap from escaping from the body. 
     According to the present invention, preferably, the escape prevention means has a protrusion formed on any of the outer peripheral surface of the inner tube and the inner peripheral surface of the outer tube. 
     According to the present invention, preferably, the body has a spiral groove formed on any of the outer peripheral surface of the inner tube and the inner peripheral surface of the outer tube, and the protection cap has a guide projection formed on any of the outer and inner peripheral surfaces thereof in such a manner as to be received into the spiral groove of the body. 
     According to the present invention, preferably, the protection cap has a spiral groove formed on any of the outer and inner peripheral surfaces thereof and the body has a guide projection formed on any of the outer peripheral surface of the inner tube and the inner peripheral surface of the outer tube in such a manner as to be received into the spiral groove of the protection cap. 
     According to the present invention, preferably, the spiral groove and the guide protrusion are formed at the same time in three directions. 
     According to the present invention, preferably, the cover is made of a transparent material. 
     According to the present invention, preferably, the outer tube has a fastening ring formed along the top end periphery thereof in such a manner as to be engaged with the lower end periphery of the protection cap, thereby preventing the protection cap from escaping from the outer tube. 
     According to the present invention, preferably, the inner tube has the mounting portion formed on the upper portion thereof to mount the lipstick thereon. 
     According to the present invention, preferably, the mounting portion has a shape of a hopper having an upper diameter larger than a lower diameter thereof. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a separate perspective view showing a lipstick case structure of the prior art. 
         FIG. 2  is a perspective view showing an assembled state of a slide type lipstick case structure according to a first embodiment of the present invention. 
         FIG. 3  is a perspective view showing a separated state of a cover from the slide type lipstick case structure according to the first embodiment of the present invention. 
         FIG. 4  is a perspective view showing the open state of a lipstick from the slide type lipstick case structure according to the first embodiment of the present invention. 
         FIGS. 5A and 5B  are a sectional view and an enlarged view showing the main parts of the slide type lipstick case structure according to the first embodiment of the present invention. 
         FIGS. 6A and 6B  are a sectional view and an enlarged view showing the main parts of a slide type lipstick case structure according to a second embodiment of the present invention. 
         FIG. 7  is a perspective view showing a spiral groove in the slide type lipstick case structure according to the second embodiment of the present invention. 
         FIGS. 8A and 8B  are a perspective view and an enlarged view of the main parts of a protection cap of a slide type lipstick case structure according to a third embodiment of the present invention. 
         FIGS. 9A and 9B  are a perspective view and a bottom view showing a body in the slide type lipstick case structure according to the third embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     Hereinafter, an explanation on a slide type lipstick case structure according to the preferred embodiments of the present invention will be given with reference to the attached drawings. 
       FIG. 2  is a perspective view showing an assembled state of a slide type lipstick case structure according to a first embodiment of the present invention,  FIG. 3  is a perspective view showing a separated state of a cover from the slide type lipstick case structure according to the first embodiment of the present invention, and  FIG. 4  is a perspective view showing the open state of a lipstick from the slide type lipstick case structure according to the first embodiment of the present invention. 
     Referring to  FIGS. 2 to 4 , the slide type lipstick case structure according to the first embodiment of the present invention includes: a body  100  into which a lipstick  400  is mounted, a protection cap  200  coupled to the outer periphery of the body  100  through a triple spiral in such a manner as to be moved up and down by means of rotation manipulations, thereby allowing the lipstick  400  to be extracted out of the body  100  and retracted into the body  100 , and a cover  300  adapted to open and close the upper portion of the body  100  into which the protection cap  200  is mounted. 
       FIGS. 5A and 5B  are a sectional view and an enlarged view showing the main parts of the slide type lipstick case structure according to the first embodiment of the present invention. 
     Referring to  FIGS. 5A and 5B , the body  100  has a mounting portion  130  formed on the center thereof to mount the lipstick  400  thereinto. At this time, as shown, the mounting portion  130  has a shape of a hopper having an upper diameter larger than a lower diameter thereof. 
     Such hopper-shaped mounting portion  130  is capable of mounting the lipstick  400  therein, without having a separate support plate. 
     For example, the whole diameter of the lipstick  400  is similar to the upper diameter of the hopper-shaped mounting portion  130 , and thus, even though the lipstick  400  is pushed toward the body  100  by means of the pressure caused at the time of coloring lips, it is not pushed further by the inclined face of the hopper-shaped mounting portion  130 . 
     Accordingly, the lower portion of the hopper-shaped mounting portion  130  is formed of a hollow tube, which minimizes the volume of the body  100  and reduces the material cost thereof. 
     Further, the body  100  has a spiral groove formed on the outer periphery thereof, to which the protection cap  200  is coupled spirally. In this case, the protection cap  200  has a guide protrusion formed on the inner periphery thereof, to which the spiral groove of the body  100  is coupled. Of course, the body  100  may have the guide protrusion, and the protection cap  200  may have the spiral groove. 
     The protection cap  200  is spirally coupled to the body  100  in such a manner as to be moved up and down, and so as to prevent the escape from the body  100 , the protection cap  200  has an escape prevention structure. For example, a prevention projection may be formed to allow the protection cap  200  and the body  100  to be engaged with each other, thereby preventing the protection cap  200  from escaping from the body  100 . 
     The prevention projection may be formed on the top periphery of the body  100  and the bottom periphery of the protection cap  200  in such a manner as to face each other. Desirably, the prevention projection has a shape capable of climbing over each other by the application of an external force, for example, has a hemispherical section. 
     Further, as shown in  FIGS. 5A and 5B , the body  100  has a double tube structure wherein an inner tube  120  and an outer tube  110  are spaced apart from each other by a given distance. 
     At this time, an elevating passage  140  is formed between the inner tube  120  and the outer tube  110 , along which the protection cap  200  is moved up and down in the state of being spirally coupled thereto. The elevating passage  140  is closed on the underside thereof and is open on the top thereof. 
     Escape prevention means  160  is formed on the elevating passage  140  in such a manner as to be engaged with the lower end of the protection cap  200 , thereby preventing the protection cap  200  from escaping from the body  100 . The escape prevention means  160  is formed of a round protrusion having a hemispherical section. 
     The escape prevention means  160  is formed on any of the outer peripheral surface of the inner tube  120  and the inner peripheral surface of the outer tube  110 . 
     The inner tube  120  has the mounting portion  130  formed on the center portion thereof to mount the lipstick  400  thereinto, and the mounting portion  130  has a shape of a hopper having an upper diameter larger than a lower diameter thereof. The lower portion of the hopper-shaped mounting portion  130  is formed of a hollow tube. 
     The protection cap  200  is spirally coupled directly to the outer periphery of the body  100  in such a manner as to be moved up and down by means of rotation manipulations, thereby allowing the lipstick  400  to be extracted out of the body  100  and retracted into the body  100 . 
     The protection cap  200  is formed of a hollow tube and has an escape prevention lip  210  formed along the lower end periphery thereof when the lipstick case structure is vertically upright. 
     The escape prevention lip  210  is engaged with the escape prevention means  160  formed on the body  100 , thereby preventing the protection cap  200  from escaping from the body  100 , and the escape prevention lip  210  is formed of a round protrusion having a hemispherical section. 
     The escape prevention lip  210  is formed on any of the outer and inner peripheral surfaces of the protection cap  200 . 
     So as to perform the spiral coupling between the protection cap  200  and The body  100 , additionally, a spiral groove and a guide projection for coupling to the spiral groove are formed. 
     For example, a spiral groove  150  is formed on any of the outer peripheral surface of the inner tube  120  and the inner peripheral surface of the outer tube  110 , and a guide projection  220  is formed on any of the outer and inner peripheral surfaces of the protection cap  200 . 
     Also, the outer tube  110  has a round stepped portion  170  formed along the top end periphery thereof in such a manner as to be detachably coupled to the bottom end periphery of the cover  300 . The stepped portion  170  and the top end periphery of the cover  300  are press-fitted to each other. 
     For example, a round protrusion (not shown) is formed along the stepped portion  170 , and a round protrusion (not shown) is formed along the top end periphery of the cover  300  correspondingly to the round protrusion of the stepped portion  170 , so that the protrusions are engaged with each other to prevent the cover  300  from escaping from the outer tube  110 . 
       FIGS. 6A and 6B  are a sectional view and an enlarged view showing the main parts of a slide type lipstick case structure according to a second embodiment of the present invention. Referring to  FIGS. 6A and 6B , the configuration of the second embodiment of the present invention is almost similar to that of the first embodiment of the present invention, except that the outer tube  110  has a fastening ring  500  formed along the top end periphery thereof in such a manner as to be engaged with the lower end periphery of the protection cap  200 , thereby preventing the protection cap  200  from escaping from the outer tube  110 . 
     For example, the forced coupling structure made by the escape prevention means  160  and the escape prevention lip  210  can be adopted when the body  100  and the protection cap  200  are made of a deformable soft material like a synthetic resin, and accordingly, the forced coupling structure cannot be used when they are made of a material having low deformity such as a metal material, glass and the like. 
     Accordingly, as shown in  FIGS. 6A and 6B , the escape prevention lip  210  is formed along the lower end periphery of the protection cap  200 , and the outer tube  110  has the fastening ring  500  formed along the top end periphery thereof, the fastening ring  500  having an inside protrusion formed to be located on top of the escape prevention lip  210 . 
     At this time, the fastening ring  500  has a round stepped portion formed along the top end periphery thereof in such a manner as to be detachably coupled to the lower end periphery of the cover  300 . The stepped portion and the top end periphery of the cover  300  are press-fitted to each other. 
     For example, a round protrusion (not shown) is formed along the stepped portion, and a round protrusion (not shown) is formed along the top end periphery of the cover  300  correspondingly to the round protrusion of the stepped portion, so that the protrusions are engaged with each other to prevent the cover  303  from escaping from the outer tube  110 . 
     The cover  300  is adapted to open and close the top portion of the body  100  into which the protection cap  200  is mounted and is made of a transparent material so that the lipstick  400  mounted can be seen from the outside. 
       FIGS. 8A and 8B  are a perspective view and an enlarged view of the main parts of a protection cap of a slide type lipstick case structure according to a third embodiment of the present invention, and  FIGS. 9A and 9B  are a perspective view and a bottom view showing a body in the slide type lipstick case structure according to the third embodiment of the present invention. 
     Referring to  FIGS. 8A to 9B , the configuration of the third embodiment of the present invention is almost similar to that of the first embodiment of the present invention, except that a spiral groove  230  is formed on any of the outer and inner peripheral surfaces of the protection cap  200  and a guide projection  121  is formed on any of the outer peripheral surface of the inner tube  120  and the inner peripheral surface of the outer tube  110  in such a manner as to be received with the spiral groove  230  of the protection cap  200 . 
     At this time, as shown in  FIGS. 8A and 8B , the protection cap  200  has an inclined guide portion  250  formed on a portion from which the lower end portion spiral groove  230  starts, so that the guide protrusion  121  climbs over the inclined face of the inclined guide portion  250  and is received into the spiral groove  230 , thereby preventing the escape from the protection cap  200  in a reverse direction. 
     Further, as shown in  FIGS. 9A and 9B , in case where the guide protrusion  121  is formed on the body  100 , a portion of the bottom surface of the body  100  is formed open to allow molding to be easily carried out. 
     Moreover, the mounting portion  130  in which the lipstick  400  is mounted has a partition  131  formed thereon, and the structure of the partition  131  can be applied to the first and second embodiments of the present invention. 
       FIG. 7  is a perspective view showing a spiral groove in the slide type lipstick case structure according to the second embodiment of the present invention, and as shown, the spiral groove and the guide protrusion in the first to third embodiments of the present invention have a triple spiral coupling structure where they are formed at the same time in three directions. 
     As mentioned above, the slide type lipstick case structure according to the preferred embodiments of the present invention is configured wherein the protection cap adapted to surround the outer periphery of the lipstick is directly coupled to the body through a triple spiral in such a manner as to be moved up and down by means of rotation manipulations, thereby allowing the lipstick to be extracted out of the body and to be retracted into the body, so that the extracting and retracting operations of the lipstick can be achieved just with the simple combination of the protection cap and the body. As a result, the number of parts used is substantially decreased to permit the manufacturing cost to be lowered, and further, the man hours for assembling are shortened to improve the productivity. 
     While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.