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Tool for applying liquid cosmetic materialRelated Patent Categories: Coating Implements With Material Supply, Brush, Broom, Or Mop, With Flow-regulator, Resiliently Biased, Including Mechanical-movement ActuatorTool for applying liquid cosmetic material description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070172307, Tool for applying liquid cosmetic material. Brief Patent Description - Full Patent Description - Patent Application Claims
TECHNICAL FIELD [0001] The present invention relates to a tool for applying a liquid cosmetic material, which is constructed so that a cartridge containing the liquid cosmetic material is conveniently replaced with a new one without removing a cap from a vessel body of the tool whenever it is required to replace the cartridge, thus realizing an easy and simple manipulation thereof. BACKGROUND ART [0002] Typically, a tool for applying a liquid cosmetic material, that is, "eyeliner", has been used to apply a liquid cosmetic material along an area where eyelashes grow, thus emphasizing the shape of the user's eyes and making the eyes beautiful. As shown in FIG. 7, a pen-type tool will be described as one example of a conventional tool for applying the liquid cosmetic material. The tool includes a head 01 having a brush 01a. A cartridge 02 containing a liquid cosmetic material is pushed to be fitted into the head 01. Further, a general shaft 03 is secured to the head 01 by engagement of the shaft 03 with a threaded part 01b of the head 01, and has a knock button 03a which is biased by a spring (not shown) accommodated in the tool. The tool also includes a cap 04 that covers the brush 01a by engagement of the cap 04 with a threaded part 03b of the shaft 03. Such a cap 04 may be mounted to the shaft 03 which protects the cartridge 02 by pushing the cap 04 over the threaded part 03b of the shaft 03. When the eyeliner is not in use, it is stored in the state of FIG. 7a. Conversely, when the eyeliner is used, as shown in FIG. 7b, the cap 04 is separated from the threaded part 03b. In such a state, the brush 01a is moved along the portion where the eyelashes grow so as to outline the eyes. Meanwhile, when the cartridge 02 must be replaced with a new one, as shown in FIG. 7c, the cap 04 is removed from the threaded part 03b of the shaft 03, and subsequently, the shaft 03 is removed from the threaded part 01b of the head 01. [0003] However, the conventional eyeliner is problematic in that the cap 04 is assembled with the threaded part 03b of the shaft 03 through a screw-type fastening method, so that the shaft 03 as well as the cap 04 must be removed from the head 01 when the cartridge 02 is replaced with a new one. Therefore, it is complicated to replace the cartridge, and it is difficult to replace the cartridge in a short time. Further, after the installation of the cartridge 02 has been completed, the shaft 03 must be coupled to the head 01 again, and thereafter the knock button 03a must be pushed so that the eyeliner is reset. Thereby, the eyeliner may be used again. Consequently, it is very complicated and inconvenient to replace the cartridge 02 with a new one. DISCLOSURE OF INVENTION Technical Problem [0004] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a tool for applying a liquid cosmetic material, which is constructed so that it is possible to simply replace a cartridge in a short time without removing a cap, when it is required to replace the cartridge with a new one, and it is possible to immediately use the tool without additional manipulation other than removal of the cap, after the cartridge has been replaced with the new one. Technical Solution [0005] In order to accomplish the object, the present invention provides the following means. [0006] That is, a tool for applying a liquid cosmetic material disclosed in the first claim includes a joint unit secured to an interior of a vessel body and having a liquid passage that causes a first portion around a first end having a valve to communicate with a second portion, a brush holder liquid-tightly and slidably coupled to the joint unit and including a valve seat biased to be spaced apart from the valve, due to an elastic force of a first spring which is installed between the brush holder and the joint unit while being compressed and a holder part to support a brush means, a brush protecting cap detachably mounted to the vessel body, and covering the brush holder, a pipe liquid-tightly and slidably mounted to an outer portion of a second end of the joint unit, and normally biased toward the second end of the joint unit by an elastic force of a second spring installed between the vessel body and the joint unit while being compressed, and a cartridge fitted over the pipe in such a way as to slide along the pipe against the elastic force of the second spring and containing the liquid cosmetic material, the cartridge being mounted to the pipe such that a portion around an outside end of the cartridge faces outwards from an open end provided on the vessel body. [0007] Further, according to the second claim, a knocking cap is detachably mounted to the outside end of the cartridge and is guided to the open end of the vessel body. [0008] Further, according to the third claim, a spring seat is provided on an inside end of the pipe to support the second spring, a stopper link is mounted to the spring seat in such a way as to move along the vessel body and defines a maximum stroke of the cartridge, and the stopper is mounted to the knocking cap in such a way as to contact the vessel body. [0009] Further, according to the fourth claim, the brush protecting cap includes an outer cap, an inner cap installed to be movable in the outer cap, and a third spring installed between the outer cap and the inner cap, and having an elastic force greater than that of the first spring, wherein, when the brush protecting cap covers the vessel body such that the inner cap contacts the brush holder, the elastic force of the third spring is transmitted through the inner cap to the brush holder. [0010] Further, according to the fifth claim, the brush means installed at a predetermined portion of the brush holder includes a brush and a brush casing to surround the brush, with a ring provided on an outer portion of the brush casing in such a way as to contact the inner cap. Advantageous Effects [0011] Thereby, according to the first claim, a tool for applying a liquid cosmetic material is constructed so that a brush holder is mounted to a first end of a joint unit, and a pipe used to install a cartridge is mounted to a second end of the joint unit, and a general vessel body is fitted over the joint unit to accommodate the joint unit. The brush holder is biased in the direction of a valve seat moving away from a valve of the joint unit (toward the first end of the joint unit, namely, in a direction of the downstream side of the flowing liquid cosmetic material), by a first compression spring which is installed between the brush holder and the joint unit. The pipe, mounted to the second end of the joint unit, is normally biased in another direction of the joint unit (in an upstream direction of the flowing liquid cosmetic material) by a second spring which is installed between the vessel body and the joint unit while being compressed. Further, a brush protecting cap is detachably mounted to the vessel body. The cartridge fitted over the pipe is constructed so that a portion around an outside end of the cartridge faces outwards from an open end of the vessel body. Due to such a construction, when the cartridge is replaced with a new one, a user holds a portion around the outside end (head) of the used cartridge, and pulls the cartridge from the pipe, thus removing the cartridge from the vessel body without removing the brush protecting cap from the vessel body. Subsequently, the new cartridge is inserted from the open end of the vessel body. The cartridge is fitted into the vessel body against the elastic force of the second spring provided on the pipe, thereby the cartridge is mounted to the joint unit. As a result, unlike the prior art, it is not necessary to sequentially disassemble the vessel body of this invention, corresponding to a cap 04 and a shaft 03 of the prior art, from the joint unit of this invention, corresponding to a head 01 of the prior art. Further, it is possible to simply and easily replace and install a cartridge without removing the cap from the vessel body. Furthermore, the replacement and installation of the cartridge are carried out in a short time, thus realizing easy manipulation thereof. [0012] Further, during the operations of fitting and replacing the cartridge, the valve seat of the brush holder closes the valve of the joint unit against the elastic force of the first spring due to a force transmitted from the cap mounted to the vessel body. Such a construction prevents a liquid cosmetic material contained in the new cartridge from flowing to a brush due to liquid pressure generated in the cartridge when the cartridge is fitted into and enters the pipe, thus preventing the waste of the liquid cosmetic material. Particularly, when a user desires to exchange the cap with another one after the replacement of the cartridge has been completed, predetermined liquid pressure acts on a liquid passage extending to the valve of the joint unit. Thus, unlike the prior art, it is not necessary to perform an initial manipulation that pushes the knock button, that is, it is not necessary to push the cartridge against the elastic force of the second spring. That is, merely by removing the brush protecting cap from the vessel body and knocking the cartridge, the tool is ready to be used again. Thus, the liquid cosmetic material is immediately supplied to the brush of the brush holder through a gap which is formed when the valve seat is spaced apart from the valve due to the elastic force of the first spring. Consequently, a user can rapidly put on makeup without the waste of the liquid cosmetic material. Furthermore, this invention realizes a tool for applying a liquid cosmetic material that requires low maintenance costs. [0013] Moreover, when a user desires to supply the liquid cosmetic material to the brush during general use of the tool, the outside end of the cartridge protruding outwards from the open end of the vessel body is pushed against the elastic force of the second spring. Through such a pushing action, the pipe integrated with the cartridge comes into contact with the joint unit. Thereby, an amount of liquid cosmetic material corresponding to the number of times or the force with which the cartridge is pushed is transmitted from the liquid passage through a gap between the valve and the valve seat to the brush, thus accomplishing smooth and good makeup application. [0014] Further, according to the second claim, a knocking cap is detachably mounted to the outside end of the cartridge and is guided to the open end of the vessel body. Thus, various knocking caps appropriately designed to correspond to plating or painting performed on the surface of the vessel body or a material (e.g. plastics, metals, etc.) of the vessel body may be detachably mounted to the outside end (head) of the cartridge. That is, various designs of knocking caps may be selected according to a user's taste, thus providing a good appearance. [0015] Further, according to the third claim, a spring seat is provided on an inside end of the pipe to support the second spring, a stopper link is mounted to the spring seat in such a way as to move along the vessel body and defines a maximum stroke of the cartridge, and the stopper is mounted to the knocking cap in such a way as to contact the vessel body. Thus, when the head of the cartridge is pushed, the stopper link fitted between the spring seat of the pipe which is integrated with the cartridge and the inside end of the cartridge moves smoothly in the vessel body, thus affording a good feel when the cartridge is manipulated to supply the liquid cosmetic material. Further, the strokes of the cartridge and the pipe integrated with the cartridge are determined by the position at which the stopper link comes into contact with the vessel body, and the position at which the stopper of the knocking cap comes into contact with the vessel body. Thus, the amount of liquid cosmetic material supplied to the liquid passage when the knocking cap is pushed once is always constant, thus preventing the waste of the liquid cosmetic material. [0016] According to the fourth claim, the brush protecting cap includes an outer cap, an inner cap installed to be movable in the outer cap, and a third spring installed between the outer cap and the inner cap and having an elastic force greater than that of the first spring. When the brush protecting cap covers the vessel body such that the inner cap contacts the brush holder, the elastic force of the third spring is transmitted through the inner cap to the brush holder. Thus, merely by mounting the brush protecting cap to the vessel body, the inner cap biased by the elastic force of the third spring is brought into contact with the brush holder. As such, the valve seat of the brush holder overcomes the elastic force of the first spring, thus being in close contact with the valve of the joint unit, therefore closing the passage of the liquid cosmetic material. Consequently, when the brush protecting cap is mounted to the vessel body, the valve seat closes the valve due to the elastic force of the third spring which is installed between the inner cap and the outer cap. Thus, even if the knocking cap is strongly pushed, the liquid cosmetic material is not undesirably supplied to the brush side, thus saving the liquid cosmetic material. [0017] Further, according to the fifth claim, the brush means, installed at a predetermined portion of the brush holder, includes a brush, and a brush casing to surround the brush, with a ring provided on an outer portion of the brush casing in such a way as to contact the inner cap. Thus, the outer circumference of the brush is protected by the brush casing, thus preventing the brush from being damaged due to a user's carelessness. Further, when the brush protecting cap is mounted to the vessel body, the inner cap comes into contact with the ring provided on the outer portion of the brush casing. The brush holder is integrated with the brush casing, so the elastic force of the third spring is smoothly transmitted from the ring to the brush holder, when the inner cap comes into contact with the ring. Therefore, merely by mounting the brush protecting cap to the vessel body, the valve seat is brought into close contact with the valve. Further, merely by removing the brush protecting cap from the vessel body, the valve seat is spaced apart from the valve due to the elastic force of the first spring, thus defining a supply passage for the liquid cosmetic material. Therefore, this invention achieves reliable operations of supplying and blocking the liquid cosmetic material. BRIEF DESCRIPTION OF THE DRAWINGS Continue reading about Tool for applying liquid cosmetic material... Full patent description for Tool for applying liquid cosmetic material Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Tool for applying liquid cosmetic material patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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