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WO2009107882A1 - Cosmetic brush - Google Patents

Cosmetic brush
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Publication number
WO2009107882A1
WO2009107882A1PCT/KR2008/001128KR2008001128WWO2009107882A1WO 2009107882 A1WO2009107882 A1WO 2009107882A1KR 2008001128 WKR2008001128 WKR 2008001128WWO 2009107882 A1WO2009107882 A1WO 2009107882A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
bristle assembly
guide unit
cosmetic brush
actuator
Prior art date
Application number
PCT/KR2008/001128
Other languages
French (fr)
Inventor
Joung Chul Kim
Original Assignee
Joung Chul Kim
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Joung Chul KimfiledCriticalJoung Chul Kim
Priority to PCT/KR2008/001128priorityCriticalpatent/WO2009107882A1/en
Publication of WO2009107882A1publicationCriticalpatent/WO2009107882A1/en

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Abstract

A cosmetic brush is disclosed. The cosmetic brush prevents a bristle assembly from being damaged when it is exposed to the outside and stored, and is simple in construction and operation, thus having high price competitiveness and ensuring a convenient use. The cosmetic brush includes a first cover having an entrance and an insert part. An actuator includes a bristle assembly moving in and out through the entrance, and a guide unit coupled to the bristle assembly. An elastic member is provided behind the bristle assembly, and elastically biases the actuator rearwards. A second cover is coupled to the entrance to normally serve as a cap, and is coupled to the insert part to expose the bristle assembly to an outside using a push rod. A stopper means functions to hold the second cover to the entrance or insert part.

Description

Description COSMETIC BRUSH
Technical Field
[1] The present invention relates, in general, to a brush which is used to apply makeup to lips, eyebrows, upper eyelids, and cheeks and, more particularly, to a cosmetic brush, which prevents a bristle assembly comprising bristles from being damaged when the bristle assembly is exposed to the outside and stored (herein also referred to as opened and closed), and which allows the opening or closing operation to be simply performed using covers, thus being simple in construction and operation, having high price competitiveness, and being convenient for women who are not accustomed to using implements. Background Art
[2] Various cosmetic brushes have been widely used to put on makeup. For example, a cosmetic brush, which is constructed so that a bristle assembly is exposed to the outside or covered to be protected simply by opening or closing a cap, has been used.
[3] Another cosmetic brush is disclosed in Korean U.M. Registration No. 0400077
(Oct. 25, 2005), which is entitled førush Apparatus For MakeupJ . The brush apparatus is constructed so that a bristle assembly is exposed or stored through the forward and backward movement of a brush handle.
[4] A further cosmetic brush is disclosed in Korean U.M. Publication No.
1982-0000865 (Apr. 26, 1982) which is entitled fCosmetic BrushJ . The brush adopts the structure of a ball-point pen. When a brush handle is pushed, a coil spring is contracted and a bristle assembly is exposed to the outside. Meanwhile, when a locking piece is pressed, the spring is released, so that the bristle assembly is stored again.
[5] Meanwhile, a conventional cosmetic brush having the structure of a ball-point pen, for example, the cosmetic brush of Korean U.M. Publication No. 1982-0000865, is found in Korean U.M. Registration No. 0304043 (Jan. 30, 2003) which is entitled fcosmetic Lip BrushJ .
[6] Both the publication and the registration simply substitute a bristle assembly for the cartridge of a ball-point pen. The cited documents are problematic in that outer bristles constituting the bristle assembly may be easily bent because of the collision between the coil spring provided on the lower portion of the brush and the bristles, so that the quality of the brush is deteriorated and the marketability thereof is low.
[7] In order to overcome the problem of the U.M. Registration No. 0304043, that is, to allow a pusher to move in and out without resistance when a brush is exposed to the outside, Korean U.M. Registration No. 0319261 (Jun. 27, 2003), which is entitled ferush Assembly For MakeupJ , uses another coil spring which elastically biases the pusher backwards. [8] However, the brush assembly still has a problem in that outer bristles may be damaged because of a coil spring, which is provided at a lower position in the brush assembly. [9] Further, in Korean U.M. Registration No. 0181122 (Feb. 24, 2000), a cosmetic brush having inner and outer springs was proposed. This was filed prior to the aforesaid two documents, but overcomes the problems facing the inventions of the two documents. [10] According to this document, a spring is not provided around bristles, but is provided on the rear portion in the brush. [11] Further, a pusher is elastically biased by an additional spring in such a way as to move in and out without resistance. [12] However, Korean U.M. Registration No. 0181122 is problematic in that it includes two springs, so that the construction thereof is complicated, and it is difficult to adopt a bristle assembly having a smaller diameter or various designs. [13] Thereby, the manufacturing cost is increased.
[14] Generally, the brush is distributed for free when cosmetics are sold. Because of this distribution structure, a brush manufacturing company, which supplies brushes to large cosmetics companies in an OEM relationship, pursues a reduction in the cost of the brushes.
Disclosure of Invention
Technical Problem
[15] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and the present invention proposes a cosmetic brush, which is more convenient to use and is cheaper than various conventional brushes, and minimizes damage to a bristle assembly, and solves the problems encountered when a brush adopts the structure of a ball-point pen, thus preventing damage to the bristle assembly from a spring, and prevents an increase in the cost thereof due to a complicated construction.
[16] An object of the present invention is to provide a cosmetic brush, which includes an elastic member that applies elastic force such that a bristle assembly is normally stored in a first cover, and which is constructed so that the ejection and retraction of the bristle assembly are performed by a push rod which is provided in a second cover.
[17] Another object of the present invention is to provide a cosmetic brush, in which an elastic member, applying elastic force so that an actuator including a bristle assembly is normally stored in a first cover, is coupled to a guide unit which is provided behind the bristle assembly, thus preventing the bristle assembly from being damaged by interference with the elastic member.
[18] A further object of the present invention is to provide a cosmetic brush, in which a stopper means for preventing a second cover from moving any further than a predetermined position is embodied in consideration of a correlation between the external shape of a first cover and the internal shape of the second cover, and a correlation between the sectional areas of the first and second covers. Here, the second cover covers an entrance which is provided in the front portion of the first cover such that a bristle assembly moves in and out through the entrance, or a push rod of the second cover is inserted into an insert part provided in a rear portion of the first cover to press a guide unit of an actuator and thus expose the bristle assembly to the outside.
[19] Yet another object of the present invention is to provide a cosmetic brush, which includes a clip, thus being convenient to carry and allowing the cosmetic brush to be maintained at a predetermined position.
[20] Still another object of the present invention is to provide a cosmetic brush, which includes a guide unit which is disposed in a space defined between coupled first and second covers and has on one end or each of opposite ends thereof a bristle assembly, and which is constructed so that the bristle assembly is exposed or stored when the covers are moved relative to the guide unit, thus simplifying the construction and operation thereof.
[21] Still another object of the present invention is to provide a cosmetic brush, which includes a stopper means so as to stably keep the bristle assembly exposed or stored in a space defined between the covers.
[22] Here, the stopper means includes a locking unit which limits the movement of the first cover and/or second cover when the bristle assembly is in the exposed or stored position, and an elastic resistance unit which prevents the covers from moving and covering the bristle assembly when the bristle assembly is exposed to the outside and is used to put on makeup, thus ensuring convenient and reliable use. Technical Solution
[23] In order to accomplish the above objects, the present invention provides a cosmetic brush, including a first cover having on a front portion thereof an entrance, and having on a rear portion thereof an insert part; an actuator having on a front portion thereof a bristle assembly which moves in and out through the entrance of the first cover, and having on a rear portion thereof a guide unit which is coupled to the bristle assembly; an elastic member provided behind the bristle assembly of the actuator, and elastically biasing the actuator rearwards; a second cover coupled to the entrance of the first cover so as to normally serve as a cap, and coupled to the insert part of the first cover so as to expose the bristle assembly to an outside using a push rod which is provided in the second cover; and a stopper means for holding the second cover to the entrance or insert part of the first cover.
[24] Further, in order to prevent the bristle assembly from being damaged due to the interference with the elastic member, the elastic member comprises a coil spring, a front end of the coil spring being in contact with and supported by an inner circumference of the first cover, and a rear end of the coil spring being in contact with and supported by an outer circumference of the guide unit of the actuator, thus pushing the actuator rearwards.
[25] The elastic member comprises a coil spring, a front end of the coil spring being coupled to the guide unit of the actuator, and a rear end of the coil spring being coupled to the rear portion of the first cover, thus pulling the actuator rearwards.
[26] The stopper means comprises the first and second covers, which are closely coupled to each other through force-fitting, in consideration of a correlation between an external shape of the first cover and an internal shape of the second cover, and a correlation between a sectional area of an outer circumference of the first cover and a sectional area of an inner circumference of the second cover, thus covering the entrance of the first cover or exposing the bristle assembly of the actuator while the first and second covers are secured at a desired position. This has high price competitiveness, and affords a simple structure.
[27] Further, in order to accomplish the above objects, the present invention provides a cosmetic brush, including a first cover; a second cover; a guide unit provided in a space defined in the first and second covers, which are coupled to each other; an actuator comprising a bristle assembly which is placed on one end or each of opposite ends of the guide unit and is exposed or stored as the first cover and/or second cover move forwards and backwards relative to the guide unit; and a stopper means for stably maintaining an exposed state of the bristle assembly or stably keeping the bristle assembly in the space defined in the covers.
[28] The stopper means includes a locking unit which limits a movement of the first cover and/or second cover so as to prevent the first cover and/or second cover from moving any further, thus preventing the covers from being separated from each other or preventing the guide unit from being separated from the covers.
[29] The stopper means includes an elastic resistance unit which is placed between the first cover and/or second cover and the guide unit, and prevents the covers from being unexpectedly moved when the brush is carried or stored with the bristle assembly held in the covers, thus preventing the bristle assembly from being damaged or contaminated with impurities, and prevents the covers from moving and covering the bristle assembly when it is exposed and used to put on makeup, thus ensuring convenient and reliable use.
Advantageous Effects
[30] As described above, the present invention provides a cosmetic brush, which includes an elastic member that applies elastic force such that a bristle assembly is normally stored in a first cover, and which is constructed so that the ejection and retraction of the bristle assembly are performed by a push rod which is provided in a second cover, and in which the elastic member, applying elastic force so that an actuator including the bristle assembly is normally stored in the first cover, is coupled to a guide unit which is provided behind the bristle assembly, thus preventing the bristle assembly from being damaged due to interference with the elastic member. This construction prevents damage to the bristle assembly due to the elastic member, and prevents an increase in cost attributable to a complicated construction.
[31] The present invention provides a cosmetic brush, in which a stopper means for preventing a second cover from moving any further than a predetermined position is embodied in consideration of a correlation between the external shape of a first cover and the internal shape of the second cover, and a correlation between the sectional areas of the first and second covers, thus having high price competitiveness and affording a simple structure. Here, the second cover covers an entrance which is provided in the front portion of the first cover such that a bristle assembly moves in and out through the entrance, or a push rod of the second cover is inserted into an insert part provided in a rear portion of the first cover to press a guide unit of an actuator and thus expose the bristle assembly to the outside. The present invention provides a cosmetic brush which includes a clip, thus being convenient to carry and allowing the cosmetic brush to be maintained at a predetermined position.
[32] Further, the present invention provides a cosmetic brush, which includes a guide unit which is disposed in a space defined between coupled first and second covers and has on one end or each of opposite ends thereof a bristle assembly, and which is constructed so that the bristle assembly is exposed or stored when the covers are moved relative to the guide unit, thus simplifying the construction and operation thereof. The present invention provides a cosmetic brush, which includes a stopper means so as to stably keep the bristle assembly exposed or stored in a space defined between the covers. Here, the stopper means includes a locking unit which limits the movement of the first cover and/or second cover when the bristle assembly is in the exposed or stored position, and an elastic resistance unit which prevents the covers from moving and covering the bristle assembly when the bristle assembly is exposed to the outside and is used to put on makeup, thus ensuring convenient and reliable use.
[33] As a result, the cosmetic brush according to the present invention is more convenient to use and is cheaper than various conventional brushes, and minimizes damage to a bristle assembly, and solves the problem of a brush applying the structure of a ball-point pen, thus preventing damage to a bristle assembly because of a spring, and prevents an increase in costs due to a complicated construction.
[34] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Brief Description of the Drawings
[35] FIGS. 1 and 2 are sectional views showing a cosmetic brush, according to the present invention;
[36] FIGS. 3 and 4 are sectional views showing a cosmetic brush, which is different in the arrangement of an elastic member from the cosmetic brush of FIG. 1; and
[37] FIGS. 5 and 6 are sectional views showing a cosmetic brush, according to the present invention.
[38] <Description of reference characters of important parts in FIGS. 1 and 2>
[39] B: brush 10: first cover
[40] 11 : entrance 13: insert part
[41] 20: actuator 21 : bristle assembly
[42] 23: guide unit 30: elastic member
[43] 40: second cover 41: push rod
[44]
[45] <Description of reference characters of important parts in FIGS. 5 and 6>
[46] B: brush 10: first cover
[47] 20: second cover 30: bristle assembly
[48] 40: guide unit 4OA, 4OB: guide part
[49] 4 IA, 4 IB: elastic piece 43: annular step
[50] 45: internal threaded part
[51] 47 : external threaded part
[52] S: stopper means Sl: elastic resistance unit
Best Mode for Carrying Out the Invention
[53] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
[54] The same reference numerals throughout the drawings, that is, the same reference numerals in a second digit and a first digit, or in a second digit, a first digit, and an alphabet character denote elements having the same function. If there is no special mention otherwise, elements denoted by reference numerals are to be taken as elements complying with the above-mentioned reference scheme.
[55] Further, the reference numerals in FIGS. 1, 2, 3, and 4, showing the aspect having a coil- spring-type elastic member 30 or 130, have no connection with the reference numerals in FIGS. 5 and 6, showing the aspect having no coil spring.
[56] First, a cosmetic brush shown in FIGS. 1, 2, 3, and 4 will be described below.
[57] For the convenience of description, the front and rear parts of the cosmetic brush will be designated with reference to FIGS. 1 and 2.
[58] That is, the side of a first cover 10 of the brush B having an entrance 11 through which a bristle assembly of an actuator 20 is exposed or stored is designated as the front part of the cosmetic brush, whereas the side of the first cover 10 having an insert part 13 into which a push rod 41 is inserted so that the bristle assembly 21 is exposed to the outside is designated as the rear part of the cosmetic brush.
[59] Referring to FIGS. 1 and 2, the brush B according to the present invention includes the first cover 10, a second cover 40, the actuator 20 having the bristle assembly 21, and an elastic member 30 biasing the bristle assembly 21 such that it is normally held in the first cover 10.
[60] Each of the first and second covers 10 and 40 usually has the shape of a cylinder.
However, the covers may have various shapes without being limited to the shape shown in the drawings.
[61] The first cover has on a front portion thereof the entrance 11 through which the bristle assembly 21 moves in and out, with the insert part 13 provided in a rear portion of the first cover. The push rod 41 is inserted into the insert part, and pushes the bristle assembly 21 so that it is exposed to the outside.
[62] The actuator 20, which is accommodated in the first cover 10, includes the bristle assembly 21, which may have various sizes or shapes, and a guide unit 23, which is arranged behind the bristle assembly.
[63] In the drawings, the elastic member 30 comprises a coil spring. However, the elastic member may be variously modified according to the intended purpose.
[64] The elastic member is arranged behind the bristle assembly 21 of the actuator 20, and elastically biases the actuator backwards.
[65] A cap 17 is coupled to the rear end of the first cover 10 so as to prevent the removal of the actuator 20, and has a hole 17a so that the push rod 41 is inserted into the hole.
[66] In the brush B shown in FIGS. 1 and 2, the elastic member 30 is a coil spring. The front end of the coil spring is supported by a step 15, which is provided on the inner circumference of the first cover, while the rear end of the coil spring is supported by an annular protrusion 23a, which is provided on the outer circumference of the guide unit 23 of the actuator 20, so that the coil spring serves to push the actuator 20 backwards.
[67] Meanwhile, in the brush B shown in FIGS. 3 and 4, an elastic member 130 comprises a coil spring, as in the brush of FIGS. 1 and 2.
[68] However, the front end of the elastic member 130 is secured to a coupling protrusion 123a, which is provided on a guide unit 123 of an actuator 120.
[69] The rear end of the elastic member is secured to a fitting groove 117b in a cap 117 which is fastened to the rear portion of a first cover 110 through a screw-type fastening method.
[70] Thus, when no external force is applied to the coil spring, the coil spring serves to pull the actuator 120 backwards.
[71] Next, the second cover 40 having the push rod 41 is coupled to the entrance 11 of the first cover 10, so that the second cover serves as a cap at normal times.
[72] When the second cover is coupled to the insert part 13 of the first cover 10, the bristle assembly 21 is exposed outside by the push rod 41 which is provided in the second cover.
[73] The push rod 41 must be long enough to expose the bristle assembly 21 outside to a desirable extent.
[74] Although not shown in the drawings, a stopper means may control the exposure of the bristle assembly in stages.
[75] When the second cover 40 is coupled to the first cover 10 to cover the entrance 11, the stopper means prevents the second cover from being unexpectedly separated from the first cover 10 in the event of an impact.
[76] Further, when the second cover 40 is coupled to the insert part 13 of the first cover
10, so that the bristle assembly 21 is exposed outside a desired distance by the push rod 41, the stopper means prevents the push rod from moving forwards any further.
[77] Further, when a user puts on makeup using the brush, the stopper means prevents the second cover 40 from moving backwards relative to the first cover 10 due to external force, especially the elastic force of the elastic member 30, without requiring the user to pay any attention to the state of coupling of the first cover 10 with the second cover 40.
[78] The stopper means may be embodied in various manners.
[79] As shown in the drawings, the stopper means comprises the first and second covers which are closely coupled to each other through force-fitting, in consideration of the correlation between the external shape of the first cover 10 and the internal shape of the second cover 40, and a correlation between the sectional area of the outer circumference of the first cover 10 and the sectional area of the inner circumference of the second cover 40, thus covering the entrance 11 of the first cover 10 or exposing the bristle assembly 21 of the actuator 20 while the first and second covers are secured at a desired position.
[80] That is, each of the first and second covers 10 and 40 has the shape of a cylindrical tube. In a detailed description, the first cover 10 is tapered in a direction from a rear end of the first cover to a front end thereof such that the sectional areas of the inner and outer circumferences are reduced. [81] Further, the second cover 40 is tapered in the direction from the rear end of the second cover to the front end thereof (when the second cover is coupled to the entrance provided in the front portion of the first cover) such that the sectional areas of the inner and outer circumferences are reduced. [82] Thus, when the second cover 40 is coupled to the front or rear portion of the first cover 10 to accommodate part of the first cover 10 by a predetermined length, the second cover is stopped by a predetermined portion on the first cover. Thereby, the second cover cannot move forwards and backwards any further. [83] Such a stopper means may be variously changed. Especially when a plate spring is provided in the second cover 40, the first and second cover may be coupled to each other through force fitting, even if the shapes of the outer circumference of the first cover and the inner circumference of the second cover are not precisely designed. [84] Although not shown in the drawings, preferably, a clip is provided in the first cover or the second cover so as to make it easy to carry the cosmetic brush and allow it to be maintained in a predetermined place.
[85] The clip may be provided on the outer circumference of the second cover 40.
[86] If the brush B has the shape shown in the drawings, it is impossible to mount the clip on the first cover. [87] However, when the brush is constructed as follows, the clip may be provided on the first cover.
[88] That is, the clip is provided on the rear portion of the first cover.
[89] In consideration of the case in which the second cover is coupled to the rear portion of the first cover, a slit is formed in the second cover to be open in the direction from the rear end of the second cover to the front end thereof (when the second cover is coupled to the entrance of the first cover). [90] Thereby, when the second cover is coupled to the insert part of the first cover, the clip is accommodated in the slit.
[91] Next, a cosmetic brush B of FIGS. 5 and 6 will be described.
[92] For the convenience of description, the front and rear parts of the brush will be designated with reference to FIG. 5. [93] That is, a side of the brush having a bristle assembly 30, which is provided on one end of a guide unit 40 secured to a first cover 10, is designated as the front part, while the opposite side is designated as the rear part. [94] Referring to FIGS. 5 and 6, the cosmetic brush B according to the present invention includes first and second covers 10 and 20 each having the shape of a pipe, the guide unit 40, which is placed in a space defined between the coupled covers, and the bristle assembly 30, which is secured to the front end of the guide unit 40 and may have various sizes and shapes.
[95] The bristle assembly 30 and the guide unit 40 may be referred to as an actuator M which is movable relative to the covers.
[96] The first cover 10 is open at both ends thereof, and is in contact with the outer circumference of the second cover 20, which is open at both ends thereof.
[97] Further, the second cover 20 accommodates the guide unit 40, which is coupled to the first cover 10.
[98] As the second cover 20, which is in contact with the inner circumference of the first cover 10 and with the outer circumference of the guide unit 40, moves forwards and backwards relative to the guide unit, the bristle assembly 30 is exposed to the outside or is stored in the cover.
[99] Such a brush is constructed so that the second cover moves forwards and backwards. In addition to this construction, the brush may be constructed so that respective first and second covers move forwards and backwards relative to the bristle assembly, and bristle assemblies are provided on both ends of the guide unit. In this case, the brush according to this invention may be constructed so that bristle assemblies having different purposes or shapes are opened or closed.
[100] A stopper means S, which is the important feature of the present invention, causes the bristle assembly 30 to stably maintain an exposed state or to be stably stored in a space defined in the cover. The stopper means includes an elastic resistance unit S 1 and a locking unit S2.
[101] When the bristle assembly 30 is exposed to the outside and is used to put on makeup, the elastic resistance unit Sl prevents the second cover 20 from moving and covering the bristle assembly.
[102] The elastic resistance unit comprises a plurality of elastic pieces 41 A which protrude from the outer circumference of the guide unit 40.
[103] Since the elastic pieces 41 A are provided on the outer circumference of the guide unit 40 in such a way as to be flared in the direction from a front position to a rear position and are made of an elastic material, such as synthetic resin, the elastic pieces have elastic force. Thereby, the elastic pieces are pressed against the inner circumferential surface of the second cover 20. This construction causes the second cover 20 to move forwards and backwards while being in close contact with the first cover.
[104] Further, other elastic pieces 4 IB are provided behind the elastic pieces 41 A in such a way as to be spaced apart therefrom, and are flared in the direction from a rear position to a front position. The elastic pieces 41B are in contact with the inner surface of the first cover 10, thus allowing the guide unit to be stably coupled to the cover. [105] As such, the elastic resistance unit provides resistance when the second cover 20 moves forwards and backwards, thus preventing the bristle assembly 30 from being unexpectedly opened or closed. [106] Plate springs may be provided in the first cover and/or second cover, either instead of or in addition to the elastic resistance unit. [107] Even when bristle assemblies are provided on both ends of the guide unit, and both the first and second covers move forwards or backwards to open or close the bristle assemblies, the elastic resistance unit may be appropriately modified and used. [108] Meanwhile, the locking unit S2 limits the movement of the second cover 20 when the bristle assembly 30 is in the exposed or stored position, thus preventing the removal of the second cover 20. [109] As shown in the drawings, the locking unit includes an inward protruding part 21 which is provided on the rear end of the second cover 20, and the elastic pieces 4 IA, which are stopped by the inward protruding part 21, when the second cover 20 is in the maximum forward position. [110] The inward protruding part and the elastic pieces are operated in cooperation with each other, thus preventing the second cover 20 from being removed from the first cover. [I l l] Further, the maximum backward movement of the second cover is limited by the elastic pieces 4 IB, which are provided in the rear portion of the guide unit 40. [112] Even when bristle assemblies are provided on both ends of the guide unit, and both the first and second covers move forwards and backwards to open or close the bristle assemblies, the locking unit may be appropriately modified and used. [113] In addition to the locking unit, various locking units may be embodied.
[114] Further, in order to enhance the ease of assembly of the brush B according to the present invention, the guide unit 40 includes first and second guide parts 4OA and 4OB. [115] Preferably, the first and second guide parts 4OA and 4OB have an internal threaded part 45 and an external threaded part 47, respectively, so that the first and second guide parts may be fastened to each other through a screw-type fastening method. [116] Further, the inner diameter of the inward protruding part 21 of the second cover 20 is larger than the outer diameter of an annular step 43, which is provided on the rear end of the first guide part 4OA, but is shorter than the distance between the elastic pieces 41A, which are located at the same position of the guide unit. [117] The inner diameter of the front portion of the second cover 20 is larger than the distance between the elastic pieces 4 IA. [118] Thereby, the second cover 20 is fitted over the guide unit 40 in a direction from a rear end thereof to a front end. [119] Here, because of the inclined shape of the rear elastic pieces 41B of the guide unit 40, the rear elastic pieces 4 IB, which are compressed and contracted, can be restored to their original states when the inward protruding part 21 of the second cover 20 moves forwards. Thereby, the second cover can be assembled with the guide unit.
[120] The inner diameter of the first cover 10 is slightly larger than the outer diameter of the second cover 20, so that the first cover accommodates the second cover therein.
[121] A locking protrusion 11 is provided on the rear end of the first cover 10 in such a way as to protrude inwards.
[122] The inner diameter of the locking protrusion 11 is smaller than the annular step 43 which is provided on the rear end of the guide unit 40, and is slightly larger than the external threaded part 47 of the second guide part 4OB.
[123] Thus, when an assembly of the second cover 20 and the first guide part 4OA is accommodated in the first cover and the internal threaded part 45 of the first guide part 4OA engages with the external threaded part 47 of the second guide part 4OB, the guide unit 40 can be fastened to the first cover 10.
[124] An exposed part, which is provided on the rear end of the second guide part 4OB of the guide unit, may have various colors and shapes so as to provide a decorative effect to the brush.
[125] In the brush B according to the present invention, when it is required to cover the bristle assembly 30 using the second cover 20 for opening or closing the bristle assembly 30, the second cover moves relative to the bristle assembly in a direction from the rear end to the front end thereof.
[126] Unlike a brush which is constructed so that a second cover covers a bristle assembly in a direction from a front end to a rear end thereof, bristles constituting the bristle assembly are not broken even if the maximum diameter (or height) of free bristles of the bristle assembly 30 is greater than the inner diameter of the second cover 20.
[127] Therefore, the brush according to the present invention can be applied to bristle assemblies having various shapes and sizes.
[128] Although not shown in the drawings, a clip may be provided on the outer circumference of the first cover so as to make it easy to carry and allow the cosmetic brush to be maintained in a predetermined place.

Claims

Claims
[1] A cosmetic brush, comprising: a first cover having on a front portion thereof an entrance, and having on a rear portion thereof an insert part; an actuator having on a front portion thereof a bristle assembly which moves in and out through the entrance of the first cover, and having on a rear portion thereof a guide unit which is coupled to the bristle assembly; an elastic member provided behind the bristle assembly of the actuator, and elastically biasing the actuator rearwards; a second cover coupled to the entrance of the first cover so as to normally serve as a cap, and coupled to the insert part of the first cover so as to expose the bristle assembly to an outside using a push rod which is provided in the second cover; and stopper means for holding the second cover to the entrance or insert part of the first cover.
[2] The cosmetic brush according to claim 1, wherein the elastic member comprises a coil spring, a front end of the coil spring being in contact with and supported by an inner circumference of the first cover, and a rear end of the coil spring being in contact with and supported by an outer circumference of the guide unit of the actuator, thus pushing the actuator rearwards.
[3] The cosmetic brush according to claim 1, wherein the elastic member comprises a coil spring, a front end of the coil spring being coupled to the guide unit of the actuator, and a rear end of the coil spring being coupled to the rear portion of the first cover, thus pulling the actuator rearwards.
[4] The cosmetic brush according to any one of claims 1 to 3, wherein the stopper means comprises the first and second covers, which are closely coupled to each other through force-fitting, in consideration of a correlation between an external shape of the first cover and an internal shape of the second cover, and a correlation between a sectional area of an outer circumference of the first cover and a sectional area of an inner circumference of the second cover, thus covering the entrance of the first cover or exposing the bristle assembly of the actuator while the first and second covers are secured at a desired position.
[5] The cosmetic brush according to any one of claims 1 to 3, wherein a clip is provided on an outer circumference of the first cover or the second cover.
[6] A cosmetic brush, comprising: a first cover; a second cover; a guide unit provided in a space defined in the first and second covers, which are coupled to each other; an actuator comprising a bristle assembly which is placed on one end or each of opposite ends of the guide unit and is exposed or stored as the first cover and/or second cover move forwards and backwards relative to the guide unit; and stopper means for stably maintaining an exposed state of the bristle assembly or stably keeping the bristle assembly in the space defined in the covers.
[7] The cosmetic brush according to claim 6, wherein the stopper means comprises an elastic resistance unit which is placed between the first cover and/or second cover and the guide unit.
[8] The cosmetic brush according to claim 6, wherein the stopper means comprises a locking unit to limit a movement of the first cover and/or second cover, when the first cover and/or second cover move forwards and backwards relative to the guide unit so that the bristle assembly is in an exposed or stored position, thus preventing the first cover and/or second cover from moving any further.
[9] The cosmetic brush according to any one of claims 6 to 8, wherein the bristle assembly comprises one bristle assembly, the guide unit is provided in the first cover to be secured thereto, the second cover is arranged such that an outer circumference thereof is in contact with an inner circumference of the first cover and an inner circumference thereof is in contact with an outer circumference of the guide unit, and moves forwards or backwards to store or expose the bristle assembly.
[10] The cosmetic brush according to claim 9, wherein the elastic resistance unit of the stopper means comprises an elastic piece protruding from the outer circumference of the guide unit.
[11] The cosmetic brush according to claim 10, wherein the locking unit of the stopper means comprises: an inward protruding part provided on a rear end of the second cover; and the elastic piece of the guide unit, so that, when the second cover is in a maximum forward position, the elastic piece is stopped by the inward protruding part.
[12] The cosmetic brush according to claim 11, wherein the locking unit of the stopper means further comprises an annular step which is provided behind the guide unit, a maximum backward position of the second cover being limited by the inward protruding part which is stopped by the annular step.
[13] The cosmetic brush according to claim 12, wherein the guide unit comprises first and second guide parts, which are divided by the elastic piece and the annular step, the first and second guide parts being fastened to each other through a screw-type fastening method. [14] The cosmetic brash according to any one of claims 6 to 8, wherein the stopper means comprises a plate spring which is provided in the first cover and/or second cover.
PCT/KR2008/0011282008-02-272008-02-27Cosmetic brushWO2009107882A1 (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
PCT/KR2008/001128WO2009107882A1 (en)2008-02-272008-02-27Cosmetic brush

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
PCT/KR2008/001128WO2009107882A1 (en)2008-02-272008-02-27Cosmetic brush

Publications (1)

Publication NumberPublication Date
WO2009107882A1true WO2009107882A1 (en)2009-09-03

Family

ID=41016248

Family Applications (1)

Application NumberTitlePriority DateFiling Date
PCT/KR2008/001128WO2009107882A1 (en)2008-02-272008-02-27Cosmetic brush

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CountryLink
WO (1)WO2009107882A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
KR20060013909A (en)*2004-08-092006-02-14최만수 Cosmetic brush appliance
KR100688328B1 (en)*2006-08-312007-03-02김종출 Cosmetic brush
JP2007125369A (en)*2005-11-032007-05-24Young Kwang ByunDischarge mechanism of cosmetic brush
KR20080019350A (en)*2006-08-282008-03-04김종출 Cosmetic Brush Case

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
KR20060013909A (en)*2004-08-092006-02-14최만수 Cosmetic brush appliance
JP2007125369A (en)*2005-11-032007-05-24Young Kwang ByunDischarge mechanism of cosmetic brush
KR20080019350A (en)*2006-08-282008-03-04김종출 Cosmetic Brush Case
KR100688328B1 (en)*2006-08-312007-03-02김종출 Cosmetic brush

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