JPWO2011142029A1 - Makeup brush - Google Patents

Abstract

A cosmetic brush having a comb-tooth function at the tip of a brush portion is provided with a simple structure. A brush for cosmetics in which a brush part in which bristles are radially and spirally dispersed from a twisted part of a pair of metal wires constituting a core wire part 32 is coaxially attached and integrated at the tip part of a brush shaft 22. In this embodiment, the tip portion of the core wire portion 32 is folded back, and a spiral pile formed by bristles at the tip portion of the brush portion 30 is configured to extend forward in a Tosaka shape. When applying cosmetics, use the side surface on the base end side of the brush part 30 and when using it as comb teeth for combing the eyelashes, the bristol group that extends in the shape of the top part of the brush part 30 By using 35, it is possible to apply cosmetics to the eyelashes and comb the eyelashes. Further, the brush part 30 can be manufactured by simply turning back the core part of a conventionally known brush part in which bristles are radially and spirally distributed around the core part 32, and has a very simple structure. It is easy to manufacture. [Selection] Figure 2

Description

  The present invention relates to a makeup brush, and more particularly, to a makeup brush used for application of liquid cosmetics such as mascara in a structure in which a brush portion is integrated with a brush shaft.

  This type of cosmetic brush is composed of a brush shaft that also serves as a cap that can be inserted into the mouth of a cosmetic container containing liquid cosmetic, and a brush portion that is integrally attached to the tip of the brush shaft. Yes.

  The brush portion is configured by twisting and twisting a large number of brush hairs (needle hair, hereinafter referred to as Bristol) between a pair of core wire members, and extends radially from a twisted portion of the core wire members constituting the core wire portion. Bristles are distributed spirally in the axial direction, and the whole is formed in a columnar shape, and liquid cosmetics such as mascara are applied using the side surfaces of the brush portion.

  On the other hand, a wiper made of a compressible member such as resin or rubber is provided around the inner periphery of the mouth portion of the cosmetic container. The wiper removes the brush portion when the brush shaft is extracted from the cosmetic container. Of course, the liquid cosmetic material adhered to the brush portion is made to have an appropriate amount, and the liquid cosmetic material adhered to the brush shaft is scraped off.

  As a mascara applicator, in addition to applying a sufficient amount of mascara solution to the entire eyelashes, delicately combing the eyelashes, fine adjustment when applying mascara solution to the eyes, corners of the eyes and lower eyelashes It is desired to have a function of finishing eyelashes by performing the above.

  From such a point of view, the following Patent Document 1 provides a resin comb piece portion for uniformly combing the eyelashes and the mascara liquid at the tip of the brush body for applying the mascara liquid to the eyelashes. An applicator for mascara that can perform from application to finishing of eyelashes has been proposed.

JP 2009-254395 A (paragraph number 0008, FIG. 1)

  However, in the above-described prior art, first, the brush part is composed of two members, that is, the brush part body and the comb piece part, and the structure is complicated, and both members must be separately manufactured and integrated. Therefore, there is a problem that the manufacture of the brush part is troublesome.

  Second, the wiper inner diameter dimension is formed with respect to the outer diameter of the brush shaft, but the comb piece part is made of a non-deformable material such as plastic, so only by devising the outer shape of the comb piece part, There is a limit to the ease of putting in and out of the cosmetic container and the function of scraping off the cosmetic attached to the brush shaft by the wiper.

  Therefore, the inventor has paid attention to the directionality of the bristles distributed substantially uniformly around the core wire portion. That is, the bristles are distributed radially extending in the radial direction from the core portion and spirally extending in the axial direction, and when the core portion of the brush portion is folded, the bristles protrude in a comb-teeth shape in front of the folded portion ( I thought that it would be extended).

  And when I actually made a prototype, I was able to confirm that Bristol extended forward from the folded core wire part into a Tosaka shape, and this Tosaka shape extension part had a function of combing eyelashes, so this patent The application has been completed.

  The present invention has been made on the basis of the problems of the prior art and the knowledge of the inventor described above. The first object of the present invention is to provide a simple structure having a function of combing the eyelashes as well as applying cosmetics. It is to provide a brush part. A second object is to provide a cosmetic brush that can be easily put in and out of a cosmetic container without increasing the wiper diameter.

  In order to achieve the above object, in the cosmetic brush according to claim 1, the brush in which the bristles are radially and spirally dispersed from the twisted portion of the pair of metal wires constituting the core wire portion at the tip end portion of the writing shaft. In the cosmetic brush in which the part is coaxially attached and integrated, a spiral pile formed by Bristol is formed forward in the Tosaka shape at the tip of the brush part formed by folding back the tip part of the core part. It was configured to extend.

  (Action) When applying cosmetics, use the side of the base end of the brush part where bristles are distributed approximately evenly, and when using it as comb teeth for combing the eyelashes, Use Bristol that extends into a Tosaka shape. That is, the brush part has the same function as the cosmetic brush of Patent Document 1 for applying cosmetics to the eyelashes and combing the eyelashes.

  In particular, since the folded length of the core portion is short, the length of the base side surface region of the brush portion effective for applying the cosmetic is substantially the same as the cosmetic brush of Patent Document 1, The application function is not inferior.

  Further, by simply folding back the core wire portion of a conventionally known brush portion in which the bristles are distributed radially and spirally around the core wire portion, a brush portion in which the bristles extend forward in a Tosaka shape at the tip can be manufactured. .

  Bristles extending in the shape of a crest can also be used like a brush of a brush.

  In the cosmetic brush according to claim 1, in the cosmetic brush according to claim 1, the length of the bristles on the tip side of the brush part including at least the Tosaka-shaped extension region is larger than the length of the bristles on the entire base part side of the brush part. It was configured to be long.

  (Action) The length of the bristle in the Tosaka-shaped extension region is such that the longer the bristles are, the easier it is to insert the bristles into the gap between the upper eyelashes and the lower eyelashes such as the corners of the eyes. Excellent.

  In Claim 3, In the cosmetic brush of Claim 1 or Claim 2, The said bristle-shaped area | region where a bristol extends ahead, and the brush part side area | region where a bristol distributes substantially uniformly on the outer periphery of a core wire part Between them, a Bristol non-formation region is provided.

  (Function) In the brush portion where the Tosaka-shaped extension region and the brush side surface region are continuous (there is no Bristol non-forming region between the two regions), the bristles extending in the Tosaka shape are used as comb teeth for combing the eyelashes In this case, cosmetics attached to the side surface region of the brush portion may adhere to the skin around the eyelashes. However, the non-bristol-forming region is provided between the Tosaka-shaped extension region and the side surface region of the brush portion. In the operation of combing the eyelashes in the shape extending region, the side surface region of the brush part is less likely to contact the surrounding skin, and it is possible to reduce the erroneous application of cosmetics to the skin.

  According to Claim 4, in the cosmetic brush according to any one of Claims 1 to 3, the folded portion of the core wire portion is made smaller than the diameter of the brush shaft that fixes and holds the proximal end portion of the core wire portion. Configured.

  (Operation) Since the outer diameter of the folded portion of the core wire portion is smaller than the diameter of the brush shaft, when the brush shaft is taken in and out of the cosmetic container, the effect of the wiper that scrapes off the mascara attached to the brush shaft is reduced. There is no, you can put in and out the brush shaft smoothly.

  As described above, according to the first aspect of the present invention, the brush portion has a very simple structure composed of only the core wire portion and the bristles dispersed from the core wire portion, and can be easily manufactured as a cosmetic brush. Can be easily manufactured.

  In addition to brushing the eyelashes, the bristle that extends in the shape of the tooth in front of the brush is used like a brush of a brush, so that cosmetics can be applied to places that are difficult to apply, such as the eyes, corners of the eyes, and lower eyelashes. And fine adjustment is good.

  According to the invention which concerns on Claim 2, the function as a comb tooth of the Bristol extended in the said Tosaka shape improves, and it becomes much easier to comb the cosmetics adhering to the eyelash.

  According to the invention which concerns on Claim 3, since cosmetics are hard to adhere to surrounding skin, the usability at the time of finishing eyelashes improves.

  According to the invention of claim 4, the brush shaft is smoothly put into and out of the cosmetic container, and the cosmetic scraping function by the wiper is excellent, and the hand holding the brush shaft and the brush shaft is stained with the cosmetic. There is nothing.

The longitudinal cross-sectional view of the state which inserted the cosmetic brush which concerns on 1st Example of this invention in the cosmetics container. (A) Main part front view of cosmetic brush according to first embodiment of the present invention, (b) Right side view of tip part of brush part which is main part of cosmetic brush, (c) Plane of brush Figure. The figure explaining the manufacturing process of the brush part which is the principal part of the cosmetic brush which concerns on 1st Example. (A) The figure which shows the process of twisting the core wire material which pinched | interposed the bristol, The figure which shows the process of turning back the core wire part front end side of the brush part which passed through the process shown to (b) (a). (A) The principal part front view of the cosmetic brush which concerns on 2nd Example of this invention, (b) The right view of the front-end | tip part of the brush part which is the principal part of the cosmetic brush. The figure which pinched | interposed the bristle of the cosmetic brush which concerns on 2nd Example between core wires. (A) The principal part front view of the makeup | decoration brush which concerns on 3rd Example of this invention, (b) The right view of the front-end | tip part of the brush part which is the principal part of the makeup | decoration brush. The figure which pinched | interposed the bristle of the brush for makeup | decoration which concerns on 3rd Example between core wires.

  Next, embodiments of the present invention will be described based on examples.

  1 to 3 show a makeup brush 20A according to a first embodiment of the present invention applied to a mascara applicator, and FIG. 1 shows a makeup brush 20A according to a first embodiment of the present invention. FIG. 2A is a front view of a main part of the cosmetic brush 20A, and FIG. 2B is a front view of the brush part which is the main part of the cosmetic brush 20A. It is a right view, (c) is a top view of brush 20A for makeup | decoration. 3A and 3B are diagrams for explaining a manufacturing process of a brush part, which is a main part of the cosmetic brush 20A. FIG. 3A is a diagram showing a process of twisting a core wire material sandwiching bristles, and FIG. It is a figure which shows the process of turning back the core wire part front end side of the brush part which passed through the process shown to). The imaginary line in the brush portion indicates the locus of the tip of the bristol group of the brush portion.

  As shown in FIG. 1, a mascara applicator is constituted by a cosmetic container 10 containing a mascara liquid 12 which is a liquid cosmetic and a cosmetic brush 20 </ b> A according to the first embodiment of the present invention.

  The cosmetic container 10 into which the cosmetic brush 20A is inserted is opened upward and has an elongated cylindrical shape as a whole. When the brush shaft 22 is extracted inside the mouth portion 14 of the cosmetic container 10, the brush shaft A wiper 16 made of a retractable member such as rubber having a scraping portion 17 for squeezing the mascara liquid 12 attached to the shaft portion 24 and the brush portion 30 is fitted.

  The makeup brush 20 </ b> A has a brush shaft 22 that also serves as a cap 23 that can be inserted into the mouth portion 14 of the cosmetic container 10, and a core wire portion 32 made of a metal wire that is coaxially attached to and integrated with the tip of the brush shaft 22. The bristles are formed radially and spirally from the twisted portions of the pair of metal wires constituting the core wire portion 32.

  As shown in FIG. 2, the brush portion 30 has a folded portion 33 including the folded core wire portion 32 </ b> C by folding back the end portion of the core wire portion 32 (at a folding point 41). Then, the bristles 34 group in which the bristles formed on the side surface side of the brush part 30 are distributed substantially evenly, and the spiral part of the bristol from the tip part of the brush part 30 (the twisted valley part 32A of the core wire part 32) And a group of Bristles 35 extending forward in the direction of the brush axis in a Tosaka shape (semi-arc shape). In FIG. 2 (c), the group of bristles 35 is indicated by an imaginary line and extends forward along the twisted valley portion 32 </ b> A of the core wire portion 32.

  Further, the brush portion 30 is configured such that the diameter d of the folded portion 33 of the core wire portion including the folded core wire portion 32C is smaller than the diameter D of the shaft portion 24 of the writing shaft 22 (FIG. 2A). reference).

  The brush part 30 is manufactured in the following steps.

  When the center of a large number of bristles 42 is sandwiched between a pair of metal wires 40 and 40 and the pair of metal wires 40 is twisted in the direction of the arrow in FIG. 3A, the radial direction is radial from the twisted portion of the metal wires 40 and 40. And the brush part 30A of a conventionally well-known form in which the bristles dispersed in the spiral direction in the axial direction are planted in the core wire part 32 is made. Next, if the front end portion side of the core portion 32 of the brush portion 30A is folded around the axis passing through the folding point 41 in the direction of the arrow in FIG. 3B (as indicated by the phantom line), the brush portion 30 in FIG. If it is formed and is coaxially attached and integrated with the tip of the brush shaft 22, a cosmetic brush 20A is obtained.

  In particular, since the group of Bristles 35 serving as the Tosaka-shaped portion faces forward in the direction of the writing axis, when the tip end side of the core wire portion 32 is folded back, the twist of the core wire portion is made more than the twisted portion 32B of the core wire portion 32. It is desirable to fold back at the valley portion 32A (see FIGS. 2A and 2C).

  And when inserting the brush part 30 in the cosmetic container 10, since the diameter d of the folding | returning part 33 is smaller than the diameter D of the axial part 24 of the brush shaft 22, it is designed according to the diameter D of the axial part 24. The brush portion 30 (the folded portion 33) can be smoothly inserted into the cosmetic container 10 without enlarging the inner peripheral surface of the scraping portion 17 of the retractable wiper 16, and the shaft portion 24 of the brush shaft 22 and The mascara liquid 12 adheres to the brush part 30 (Bristol 34, 35 group).

  Next, when the cosmetic brush 20 </ b> A is extracted from the cosmetic container 10, the inner peripheral surface of the scraping portion 17 of the wiper 16 remains in substantially the same diameter and is substantially continuously adhered to the outer peripheral surface of the shaft portion 24 of the brush shaft 22. Then, the mascara liquid 12 attached to the shaft portion 24 is scraped off, and the mascara liquid 12 attached to the brush portion 30 is also scraped off to an appropriate amount. At this time, since the diameter d of the folded portion 33 is smaller than the diameter D of the shaft portion 24, the brush portion 30 (folded portion 33) can be smoothly extracted without excessively expanding the inner peripheral surface of the scraping portion 17 of the wiper 16. Can do.

  Further, the inner diameter dimension of the scraping portion 17 of the wiper 16 may be a dimension that can sufficiently exhibit the scraping function with the diameter D of the shaft portion 24 of the brush shaft 22 being the maximum diameter. The brush shaft 22 is extracted in a form in which the inner peripheral surface of the portion 17 and the outer peripheral surface of the shaft portion 24 are in close contact with each other in the circumferential direction, and the mascara liquid 12 attached to the shaft portion 24 of the brush shaft 22 is left behind. In addition, the hand having the shaft portion 24 and the brush shaft 22 is not soiled by the mascara liquid 12, and the scraping function of the mascara liquid 12 of the scraping portion 17 of the wiper 16 is not different from the conventional one. Secondly, a design change that widens the mouth portion 14 of the cosmetic container 10 based on the configuration of the brush portion 30 of the makeup brush 20A (providing that the front end portion is provided with a group of bristles 35 serving as comb teeth portions), It is not necessary to change the inner peripheral dimension of the scraping portion 17, and existing wipers and cosmetic containers can be used as they are.

  Further, when the mascara liquid 12 is applied to the eyelashes using the makeup brush 20A, the brush shaft 22 is arranged substantially parallel along the eyelashes in the same manner as the mascara applicator of Patent Document 1, and the brush portion 30 is applied. When the group of bristles 34 on the side surface side is disposed below the eyelashes and then the brush shaft 22 is operated to move upward while rotating, the mascara liquid 12 can be sufficiently applied to the eyelashes.

  On the other hand, when the brush part 30 is used as comb teeth for combing the eyelashes, a group of bristles 35 at the tip part of the brush part 30 is used. That is, the brush shaft 22 is held in a direction substantially perpendicular to the face, and the side surface of the crest-shaped portion composed of the bristles 35 group is parallel to the direction of the eyelashes, and the bristles 35 group is inserted into the gap between the upper eyelashes and the lower eyelashes. If the brush shaft 22 is moved up and down several times to push up the eyelashes, the excess mascara liquid 12 applied to the eyelashes can be removed and the eyelashes can be combed.

  Further, since the length L of the folded core wire portion 32C is short, the length of the side region of the brush portion 30 effective for applying the mascara liquid 12 is substantially the same as the brush portion 30A of the conventional cosmetic brush. The application function of the mascara liquid 12 is not inferior.

  The Bristol 35 group can be used not only for combing the eyelashes, but also for applying the mascara solution 12 to places where it is difficult to apply, such as the eyes, the corners of the eyes, and the lower eyelashes. Also excellent for use in.

  In particular, when applying to the lower eyelashes, the mascara liquid 12 can be easily applied to the lower eyelashes by applying the upper side of the lower eyelashes so as to draw with a single stroke using the side surfaces of the Bristol 35 group.

  Further, the bristles 35 group can be formed to extend forward of the front end of the brush portion 30 only by turning back the core portion 32 of the conventional brush portion 30A. That is, if a separate member is provided as a comb-tooth portion and then integrated with the brush portion, the manufacture of the brush portion becomes complicated accordingly, but the brush portion 30 according to the present invention is dispersed from the core wire portion 32 and the core wire portion. Since it is a very simple structure composed of only the Bristol 34 group and the 35 group, and its manufacture is simple, the manufacture as the makeup brush 20A is facilitated accordingly.

  Next, FIGS. 4 and 5 show a cosmetic brush 20B according to a second embodiment of the present invention, and FIG. 4 (a) is a front view of a main part of the cosmetic brush according to the second embodiment of the present invention. (B) is a right side view of the tip of the brush part which is the main part of the cosmetic brush, and FIG. 5 is a view in which the bristles of the cosmetic brush 20B according to the second embodiment are sandwiched between the core wires.

  As shown in FIGS. 4 and 5, the brush portion 36 of the cosmetic brush 20 </ b> B has at least the length of the bristles 44 forming the group of bristles 35 on the distal end side of the brush portion 36 at least on the base end side of the brush portion 36. The entire length (group of bristles 34) is configured to be longer than the length of the bristles 42, and the other configurations are the same as in the first embodiment.

  The cosmetic brush 20B having the brush portion 36 is manufactured as follows.

  As shown in FIG. 5, between the pair of metal wires 40, 40, a bristol 42 is disposed on the proximal end side and a bristol 44 (longer than the bristol 42) is disposed on the distal end side. When the pair of metal wires 40 are twisted in the direction of the arrow in FIG. 5 and the core portion 32 is folded at the folded portion 41 in the same manner as in the first embodiment, the brush portion 36 is formed. The cosmetic brush 20B is completed if it is integrated on the same axis.

  That is, by increasing the length of the bristles 44 forming the bristles 35 group to a certain extent, the bristles 35 group can be easily inserted into the gap between the upper eyelashes and the lower eyelashes such as the corners of the eyes. It is excellent in the effect of spreading and it becomes easy to spread and prepare the mascara liquid 12 attached to the eyelashes.

  Further, when the brush portion 36 is manufactured by the above-described process, the bristles 44 are also sandwiched by the folded core wire portion 32C, so that a part of the front end side of the group of bristles 34 on the side of the brush portion 36 (in the bristol radial direction). Although it becomes long (Bristol 34a), trimming processing that is a well-known technique as shown by the phantom line in FIG.

  Next, FIGS. 6 and 7 show a cosmetic brush 20C according to a third embodiment of the present invention, and FIG. 6 (a) is a front view of a main part of the cosmetic brush according to the third embodiment of the present invention. FIGS. 7A and 7B are right side views of the tip of the brush portion, which is a main part of the cosmetic brush, and FIG. 7 is a view in which the bristles of the cosmetic brush 20C according to the third embodiment are sandwiched between the core wires.

  As shown in FIG. 6, the brush portion 37 of the makeup brush 20 </ b> C has a bristle between a toothed portion (Bristol 35 group) region and a proximal end (Bristol 34 group) region on the distal end side of the brush portion 37. The non-formation region 39 is provided, and the other configuration is the same as that of the second embodiment.

  The cosmetic brush 20C having the brush portion 37 is manufactured as follows.

  As shown in FIG. 7, between the pair of metal wires 40, 40, the planting area of the bristles 44 disposed on the tip side is reduced by the length L of the folded core wire portion 32 </ b> C, and the bristol 35 group forming area 7 is arranged with a gap corresponding to the length L of the folded core wire part 32C between the part and the part of the Bristol 34 group forming region, and the center part is sandwiched between the two parts in the direction of the arrow in FIG. When the metal wire 40 is twisted and the core wire portion 32 is turned back at the turn-back portion 41 in the same manner as in the first embodiment, a brush portion 37 is formed. The brush 20C for use is completed.

  When using the bristles 35 group at the tip of the brush portion 37 using the makeup brush 20C, hold the brush shaft 22 as described above, insert the bristles 35 group into the gap between the upper eyelashes and the lower eyelashes, and remove the eyelashes. When the operation is performed so as to push up (up and down the brush shaft 22), since there is no bristol in the non-bristol forming area 39, the bristles do not hit the skin around the eyelashes, and the mascara liquid 12 is not accidentally applied to the surrounding skin. Therefore, the usability of the makeup brush 20C when the eyelashes are combed or when finishing the eyelashes is improved.

  In addition, the bristles non-formation region 39 may be formed without sandwiching the bristles in the core portion, or the bristles may be shortened by trimming after the bristles 42 and 44 are implanted in the bristol non-formation regions 39.

  In Examples 1, 2, and 3, most natural fibers and synthetic fibers are used for the bristles 42 and 44 as long as they have sufficient hardness for applying the mascara liquid 12 to the eyelashes. The shape of the bristles 42 and 44 may be a circle, a polygon such as a triangle or a rhombus, a non-circular shape such as a shuriken, or a hollow cross section.

  In particular, in order to improve the function of the Bristol 35 group as comb teeth, it is preferable to use a highly rigid fiber for at least the Bristles 42 and 44 forming the Bristol 35 group. For example, in the second embodiment, the material of the bristles 44 and 42 is changed to use a fiber harder than the bristol 42 for the bristol 44, or even if the same material is used, the bristles 42 are hollow and no gap is provided. What is softer than 44 may be used.

  In the above embodiment, the present invention has been described as a cosmetic brush for applying mascara. However, the present invention can be applied to a cosmetic brush for mascara and other liquid cosmetics.

DESCRIPTION OF SYMBOLS 10 Cosmetic container 12 Mascara liquid which is a liquid cosmetic 14 Brush shaft insertion mouth 16 Wiper 17 Wiper scraping portion 20A Cosmetic brush 20B according to the first embodiment Cosmetic brush 20C according to the second embodiment 3 Brush 22 for makeup according to the embodiment Brush shaft 23 Cap 24 Shaft portion 30 of the brush shaft 30A according to the first embodiment Brush portion 30A Conventional brush portion 32 Core wire portion 32A Twist valley portion 32B of the core wire portion Twist peak of the core wire portion Part 32C Folded core wire part 33 Folded part 34 of core wire part Bristol group 35 formed on the side of the brush part Tosaka-shaped bristol group 36 formed at the tip part of the brush part Brush part 37 according to the second embodiment Brush part 39 which concerns on 3 Example Bristol non-formation area | region 40 A pair of metal wire 41 Folding point 42 Bristol 44 planted by the side surface side of a brush part Bristles are implanted in the brush tip side

  The present invention relates to a makeup brush, and more particularly, to a makeup brush used for application of liquid cosmetics such as mascara in a structure in which a brush portion is integrated with a brush shaft.

  This type of cosmetic brush is composed of a brush shaft that also serves as a cap that can be inserted into the mouth of a cosmetic container containing liquid cosmetic, and a brush portion that is integrally attached to the tip of the brush shaft. Yes.

  The brush portion is configured by twisting and twisting a large number of brush hairs (needle hair, hereinafter referred to as Bristol) between a pair of core wire members, and extends radially from a twisted portion of the core wire members constituting the core wire portion. Bristles are distributed spirally in the axial direction, and the whole is formed in a columnar shape, and liquid cosmetics such as mascara are applied using the side surfaces of the brush portion.

  On the other hand, a wiper made of a compressible member such as resin or rubber is provided around the inner periphery of the mouth portion of the cosmetic container. The wiper removes the brush portion when the brush shaft is extracted from the cosmetic container. Of course, the liquid cosmetic material adhered to the brush portion is made to have an appropriate amount, and the liquid cosmetic material adhered to the brush shaft is scraped off.

  As a mascara applicator, in addition to applying a sufficient amount of mascara solution to the entire eyelashes, delicately combing the eyelashes, fine adjustment when applying mascara solution to the eyes, corners of the eyes and lower eyelashes It is desired to have a function of finishing eyelashes by performing the above.

  From such a point of view, the following Patent Document 1 provides a resin comb piece portion for uniformly combing the eyelashes and the mascara liquid at the tip of the brush body for applying the mascara liquid to the eyelashes. An applicator for mascara that can perform from application to finishing of eyelashes has been proposed.

JP 2009-254395 A (paragraph number 0008, FIG. 1)

  However, in the above-described prior art, first, the brush part is composed of two members, that is, the brush part body and the comb piece part, and the structure is complicated, and both members must be separately manufactured and integrated. Therefore, there is a problem that the manufacture of the brush part is troublesome.

  Second, the wiper inner diameter dimension is formed with respect to the outer diameter of the brush shaft, but the comb piece part is made of a non-deformable material such as plastic, so only by devising the outer shape of the comb piece part, There is a limit to the ease of putting in and out of the cosmetic container and the function of scraping off the cosmetic attached to the brush shaft by the wiper.

  Therefore, the inventor has paid attention to the directionality of the bristles distributed substantially uniformly around the core wire portion. That is, the bristles are distributed radially extending in the radial direction from the core portion and spirally extending in the axial direction, and when the core portion of the brush portion is folded, the bristles protrude in a comb-teeth shape in front of the folded portion ( I thought that it would be extended).

  And when I actually made a prototype, I was able to confirm that Bristol extended forward from the folded core wire part into a Tosaka shape, and this Tosaka shape extension part had a function of combing eyelashes, so this patent The application has been completed.

  The present invention has been made on the basis of the problems of the prior art and the knowledge of the inventor described above. The first object of the present invention is to provide a simple structure having a function of combing the eyelashes as well as applying cosmetics. It is to provide a brush part. A second object is to provide a cosmetic brush that can be easily put in and out of a cosmetic container without increasing the wiper diameter.

In order to achieve the above object, in the cosmetic brush according to claim 1, the brush in which the bristles are radially and spirally dispersed from the twisted portion of the pair of metal wires constituting the core wire portion at the tip end portion of the writing shaft. In the cosmetic brush in which the part is coaxially attached and integrated, a spiral pile formed by Bristol is formed forward in the Tosaka shape at the tip of the brush part formed by folding back the tip part of the core part. A bristle non-formation region is provided between the Tosaka-shaped region in which the bristles extend forward and the brush side surface region in which the bristles are distributed substantially evenly on the outer periphery of the core wire portion .

  (Action) When applying cosmetics, use the side of the base end of the brush part where bristles are distributed approximately evenly, and when using it as comb teeth for combing the eyelashes, Use Bristol that extends into a Tosaka shape. That is, the brush part has the same function as the cosmetic brush of Patent Document 1 for applying cosmetics to the eyelashes and combing the eyelashes.

  In particular, since the folded length of the core portion is short, the length of the base side surface region of the brush portion effective for applying the cosmetic is substantially the same as the cosmetic brush of Patent Document 1, The application function is not inferior.

  Further, by simply folding back the core wire portion of a conventionally known brush portion in which the bristles are distributed radially and spirally around the core wire portion, a brush portion in which the bristles extend forward in a Tosaka shape at the tip can be manufactured. .

Bristles extending in the shape of a crest can also be used like a brush of a brush.
In the brush portion where the Tosaka-shaped extension region and the side surface region of the brush portion are continuous (there is no Bristol non-forming region between the two regions), the bristles extending in the Tosaka shape are used as comb teeth for combing the eyelashes. In this case, cosmetics attached to the side surface region of the brush part may adhere to the skin around the eyelashes. However, the non-bristol forming region is provided between the Tosaka shape extension region and the brush side surface region. During the operation of spreading the eyelashes in the extended region, the side surface region of the brush part is less likely to contact the surrounding skin, and it is possible to reduce the erroneous application of cosmetics to the skin.

  In the cosmetic brush according to claim 1, in the cosmetic brush according to claim 1, the length of the bristles on the tip side of the brush part including at least the Tosaka-shaped extension region is larger than the length of the bristles on the entire base part side of the brush part. It was configured to be long.

  (Action) The length of the bristle in the Tosaka-shaped extension region is such that the longer the bristles are, the easier it is to insert the bristles into the gap between the upper eyelashes and the lower eyelashes such as the corners of the eyes. Excellent.

According to Claim 3 , in the cosmetic brush according to Claim 1 or 2 , the folded portion of the core wire portion is configured to be smaller than the diameter of the brush shaft that fixes and holds the proximal end portion of the core wire portion. .

  (Operation) Since the outer diameter of the folded portion of the core wire portion is smaller than the diameter of the brush shaft, when the brush shaft is taken in and out of the cosmetic container, the effect of the wiper that scrapes off the mascara attached to the brush shaft is reduced. There is no, you can put in and out the brush shaft smoothly.

  As described above, according to the first aspect of the present invention, the brush portion has a very simple structure composed of only the core wire portion and the bristles dispersed from the core wire portion, and can be easily manufactured as a cosmetic brush. Can be easily manufactured.

In addition to brushing the eyelashes, the bristle that extends in the shape of the tooth in front of the brush is used like a brush of a brush, so that cosmetics can be applied to places that are difficult to apply, such as the eyes, corners of the eyes, and lower eyelashes. And fine adjustment is good.
In addition, since the cosmetic is difficult to adhere to the surrounding skin, the usability when finishing eyelashes is improved.

  According to the invention which concerns on Claim 2, the function as a comb tooth of the Bristol extended in the said Tosaka shape improves, and it becomes much easier to comb the cosmetics adhering to the eyelash.

According to the third aspect of the invention, the brush shaft is smoothly put in and out of the cosmetic container, and the cosmetic scraping function by the wiper is excellent, and the hand holding the brush shaft and the brush shaft is stained with the cosmetic. There is nothing.

The longitudinal cross-sectional view of the state which inserted the cosmetic brush which concerns on the 1st reference example of this invention in the cosmetics container. (A) Front view of main part of cosmetic brush according to first reference example of the present invention, (b) Right side view of tip part of brush part which is main part of cosmetic brush, (c) Plane of brush Figure. The figure explaining the manufacturing process of the brush part which is the principal part of the cosmetic brush which concerns on a 1st reference example. (A) The figure which shows the process of twisting the core wire material which pinched | interposed the bristol, The figure which shows the process of turning back the core wire part front end side of the brush part which passed through the process shown to (b) (a). (A) Main part front view of cosmetic brush which concerns on 2nd reference example of this invention, (b) The right view of the front-end | tip part of the brush part which is the principal part of the cosmetic brush. The figure which pinched | interposed the bristle of the cosmetic brush which concerns on a 2nd reference example between core wires. (A) The principal part front view of the makeup | decoration brush which concerns on the Example of this invention, (b) The right view of the front-end | tip part of the brush part which is the principal part of the makeup | decoration brush. The figure which pinched | interposed the bristle of the brush for makeup | decoration which concerns on an Example between core wires.

Next, embodiments of the present invention will be described based on reference examples and examples .

1 to 3, the cosmetic brush 20A according to a first exemplary embodiment of the present invention is applied to a mascara applicator, FIG. 1 makeup cosmetic brush 20A according to the first exemplary embodiment of the present invention FIG. 2A is a front view of a main part of the cosmetic brush 20A, and FIG. 2B is a front view of the brush part which is the main part of the cosmetic brush 20A. It is a right view, (c) is a top view of brush 20A for makeup | decoration. 3A and 3B are diagrams for explaining a manufacturing process of a brush part, which is a main part of the cosmetic brush 20A. FIG. 3A is a diagram showing a process of twisting a core wire material sandwiching bristles, and FIG. It is a figure which shows the process of turning back the core wire part front end side of the brush part which passed through the process shown to). The imaginary line in the brush portion indicates the locus of the tip of the bristol group of the brush portion.

As shown in FIG. 1, a mascara applicator is constituted by a cosmetic container 10 containing a mascara liquid 12 which is a liquid cosmetic and a cosmetic brush 20A according to a first reference example of the present invention.

  The cosmetic container 10 into which the cosmetic brush 20A is inserted is opened upward and has an elongated cylindrical shape as a whole. When the brush shaft 22 is extracted inside the mouth portion 14 of the cosmetic container 10, the brush shaft A wiper 16 made of a retractable member such as rubber having a scraping portion 17 for squeezing the mascara liquid 12 attached to the shaft portion 24 and the brush portion 30 is fitted.

  The makeup brush 20 </ b> A has a brush shaft 22 that also serves as a cap 23 that can be inserted into the mouth portion 14 of the cosmetic container 10, and a core wire portion 32 made of a metal wire that is coaxially attached to and integrated with the tip of the brush shaft 22. The bristles are formed radially and spirally from the twisted portions of the pair of metal wires constituting the core wire portion 32.

  As shown in FIG. 2, the brush portion 30 has a folded portion 33 including the folded core wire portion 32 </ b> C by folding back the end portion of the core wire portion 32 (at a folding point 41). Then, the bristles 34 group in which the bristles formed on the side surface side of the brush part 30 are distributed substantially evenly, and the spiral part of the bristol from the tip part of the brush part 30 (the twisted valley part 32A of the core wire part 32) And a group of Bristles 35 extending forward in the direction of the brush axis in a Tosaka shape (semi-arc shape). In FIG. 2 (c), the group of bristles 35 is indicated by an imaginary line and extends forward along the twisted valley portion 32 </ b> A of the core wire portion 32.

  Further, the brush portion 30 is configured such that the diameter d of the folded portion 33 of the core wire portion including the folded core wire portion 32C is smaller than the diameter D of the shaft portion 24 of the writing shaft 22 (FIG. 2A). reference).

  The brush part 30 is manufactured in the following steps.

  When the center of a large number of bristles 42 is sandwiched between a pair of metal wires 40 and 40 and the pair of metal wires 40 is twisted in the direction of the arrow in FIG. 3A, the radial direction is radial from the twisted portion of the metal wires 40 and 40. And the brush part 30A of a conventionally well-known form in which the bristles dispersed in the spiral direction in the axial direction are planted in the core wire part 32 is made. Next, if the front end portion side of the core portion 32 of the brush portion 30A is folded around the axis passing through the folding point 41 in the direction of the arrow in FIG. 3B (as indicated by the phantom line), the brush portion 30 in FIG. If it is formed and is coaxially attached and integrated with the tip of the brush shaft 22, a cosmetic brush 20A is obtained.

  In particular, since the group of Bristles 35 serving as the Tosaka-shaped portion faces forward in the direction of the writing axis, when the tip end side of the core wire portion 32 is folded back, the twist of the core wire portion is made more than the twisted portion 32B of the core wire portion 32. It is desirable to fold back at the valley portion 32A (see FIGS. 2A and 2C).

  And when inserting the brush part 30 in the cosmetic container 10, since the diameter d of the folding | returning part 33 is smaller than the diameter D of the axial part 24 of the brush shaft 22, it is designed according to the diameter D of the axial part 24. The brush portion 30 (the folded portion 33) can be smoothly inserted into the cosmetic container 10 without enlarging the inner peripheral surface of the scraping portion 17 of the retractable wiper 16, and the shaft portion 24 of the brush shaft 22 and The mascara liquid 12 adheres to the brush part 30 (Bristol 34, 35 group).

  Next, when the cosmetic brush 20 </ b> A is extracted from the cosmetic container 10, the inner peripheral surface of the scraping portion 17 of the wiper 16 remains in substantially the same diameter and is substantially continuously adhered to the outer peripheral surface of the shaft portion 24 of the brush shaft 22. Then, the mascara liquid 12 attached to the shaft portion 24 is scraped off, and the mascara liquid 12 attached to the brush portion 30 is also scraped off to an appropriate amount. At this time, since the diameter d of the folded portion 33 is smaller than the diameter D of the shaft portion 24, the brush portion 30 (folded portion 33) can be smoothly extracted without excessively expanding the inner peripheral surface of the scraping portion 17 of the wiper 16. Can do.

  Further, the inner diameter dimension of the scraping portion 17 of the wiper 16 may be a dimension that can sufficiently exhibit the scraping function with the diameter D of the shaft portion 24 of the brush shaft 22 being the maximum diameter. The brush shaft 22 is extracted in a form in which the inner peripheral surface of the portion 17 and the outer peripheral surface of the shaft portion 24 are in close contact with each other in the circumferential direction, and the mascara liquid 12 attached to the shaft portion 24 of the brush shaft 22 is left behind. In addition, the hand having the shaft portion 24 and the brush shaft 22 is not soiled by the mascara liquid 12, and the scraping function of the mascara liquid 12 of the scraping portion 17 of the wiper 16 is not different from the conventional one. Secondly, a design change that widens the mouth portion 14 of the cosmetic container 10 based on the configuration of the brush portion 30 of the makeup brush 20A (providing that the front end portion is provided with a group of bristles 35 serving as comb teeth portions), It is not necessary to change the inner peripheral dimension of the scraping portion 17, and existing wipers and cosmetic containers can be used as they are.

  Further, when the mascara liquid 12 is applied to the eyelashes using the makeup brush 20A, the brush shaft 22 is arranged substantially parallel along the eyelashes in the same manner as the mascara applicator of Patent Document 1, and the brush portion 30 is applied. When the group of bristles 34 on the side surface side is disposed below the eyelashes and then the brush shaft 22 is operated to move upward while rotating, the mascara liquid 12 can be sufficiently applied to the eyelashes.

  On the other hand, when the brush part 30 is used as comb teeth for combing the eyelashes, a group of bristles 35 at the tip part of the brush part 30 is used. That is, the brush shaft 22 is held in a direction substantially perpendicular to the face, and the side surface of the crest-shaped portion composed of the bristles 35 group is parallel to the direction of the eyelashes, and the bristles 35 group is inserted into the gap between the upper eyelashes and the lower eyelashes. If the brush shaft 22 is moved up and down several times to push up the eyelashes, the excess mascara liquid 12 applied to the eyelashes can be removed and the eyelashes can be combed.

  Further, since the length L of the folded core wire portion 32C is short, the length of the side region of the brush portion 30 effective for applying the mascara liquid 12 is substantially the same as the brush portion 30A of the conventional cosmetic brush. The application function of the mascara liquid 12 is not inferior.

  The Bristol 35 group can be used not only for combing the eyelashes, but also for applying the mascara solution 12 to places where it is difficult to apply, such as the eyes, the corners of the eyes, and the lower eyelashes. Also excellent for use in.

  In particular, when applying to the lower eyelashes, the mascara liquid 12 can be easily applied to the lower eyelashes by applying the upper side of the lower eyelashes so as to draw with a single stroke using the side surfaces of the Bristol 35 group.

Further, the bristles 35 group can be formed to extend forward of the front end of the brush portion 30 only by turning back the core portion 32 of the conventional brush portion 30A. That is, if a separate member is provided as a comb tooth portion and then integrated with the brush portion, the manufacture of the brush portion becomes complicated accordingly, but the brush portion 30 is composed of the core wire portion 32 and the bristles 34 group dispersed from the core wire portion. In addition, since it has a very simple structure composed of only 35 groups and its manufacture is simple, manufacture as a cosmetic brush 20A is facilitated accordingly.

Next, FIGS. 4 and 5 show cosmetic brush 20B according to a second exemplary embodiment of the present invention, partial front view of the cosmetic brush according to the second reference example of FIG. 4 (a) the invention (B) is a right side view of the tip of the brush part which is the main part of the cosmetic brush, and FIG. 5 is a diagram in which the bristles of the cosmetic brush 20B according to the second reference example are sandwiched between the core wires.

As shown in FIGS. 4 and 5, the brush portion 36 of the cosmetic brush 20 </ b> B has at least the length of the bristles 44 forming the group of bristles 35 on the distal end side of the brush portion 36 at least on the base end side of the brush portion 36. The entire length (the group of Bristles 34) is configured to be longer than the length of the bristles 42, and the other configurations are the same as in the first reference example .

  The cosmetic brush 20B having the brush portion 36 is manufactured as follows.

As shown in FIG. 5, between the pair of metal wires 40, 40, a bristol 42 is disposed on the proximal end side and a bristol 44 (longer than the bristol 42) is disposed on the distal end side. 5, a pair of metal wires 40 is twisted in the direction of the arrow in FIG. 5, and the core portion 32 is folded at the folded portion 41 in the same manner as in the first reference example , whereby a brush portion 36 is formed. The cosmetic brush 20B is completed if it is integrated on the same axis.

  That is, by increasing the length of the bristles 44 forming the bristles 35 group to a certain extent, the bristles 35 group can be easily inserted into the gap between the upper eyelashes and the lower eyelashes such as the corners of the eyes. It is excellent in the effect of spreading and it becomes easy to spread and prepare the mascara liquid 12 attached to the eyelashes.

  Further, when the brush portion 36 is manufactured by the above-described process, the bristles 44 are also sandwiched by the folded core wire portion 32C, so that a part of the front end side of the group of bristles 34 on the side of the brush portion 36 (in the bristol radial direction). Although it becomes long (Bristol 34a), trimming processing that is a well-known technique as shown by the phantom line in FIG.

Next, FIGS. 6 and 7 show the cosmetic brush 20C according to an embodiment of the present invention, FIGS. 6 (a) is a fragmentary front view of the cosmetic brush according to an embodiment of the present invention, (b) is FIG. 7 is a right side view of the tip of the brush portion, which is the main part of the cosmetic brush, and FIG. 7 is a view in which the bristles of the cosmetic brush 20C according to the embodiment of the present invention are sandwiched between core wires.

As shown in FIG. 6, the brush portion 37 of the makeup brush 20 </ b> C has a bristle between a toothed portion (Bristol 35 group) region and a proximal end (Bristol 34 group) region on the distal end side of the brush portion 37. The non-formation region 39 is provided, and the other configuration is the same as that of the second reference example .

  The cosmetic brush 20C having the brush portion 37 is manufactured as follows.

As shown in FIG. 7, between the pair of metal wires 40, 40, the planting area of the bristles 44 disposed on the tip side is reduced by the length L of the folded core wire portion 32 </ b> C, and the bristol 35 group forming area 7 is arranged with a gap corresponding to the length L of the folded core wire part 32C between the part and the part of the Bristol 34 group forming region, and the center part is sandwiched between the two parts in the direction of the arrow in FIG. If the metal wire 40 is twisted and the core wire portion 32 is turned back at the turn-back portion 41 in the same manner as in the first reference example , a brush portion 37 is formed. The brush 20C for use is completed.

  When using the bristles 35 group at the tip of the brush portion 37 using the makeup brush 20C, hold the brush shaft 22 as described above, insert the bristles 35 group into the gap between the upper eyelashes and the lower eyelashes, and remove the eyelashes. When the operation is performed so as to push up (up and down the brush shaft 22), since there is no bristol in the non-bristol forming area 39, the bristles do not hit the skin around the eyelashes, and the mascara liquid 12 is not accidentally applied to the surrounding skin. Therefore, the usability of the makeup brush 20C when the eyelashes are combed or when finishing the eyelashes is improved.

  In addition, the bristles non-formation region 39 may be formed without sandwiching the bristles in the core portion, or the bristles may be shortened by trimming after the bristles 42 and 44 are implanted in the bristol non-formation regions 39.

In the above-mentioned Reference Examples 1 and 2 and Examples , most natural fibers and synthetic fibers can be used for the bristles 42 and 44 as long as they have sufficient hardness to apply the mascara liquid 12 to the eyelashes. The shape of the bristles 42 and 44 may be circular, a polygon such as a triangle or a rhombus, a non-circular shape such as a shuriken type, or a hollow cross section.

In particular, in order to improve the function of the Bristol 35 group as comb teeth, it is preferable to use a highly rigid fiber for at least the Bristles 42 and 44 forming the Bristol 35 group. For example, in the second reference example , the material of the bristles 44 and 42 is changed to use a fiber harder than the bristol 42 for the bristol 44, or even if the same material is used, the bristol 42 is hollow and no gap is provided. What is softer than 44 may be used.

In the reference examples and examples , the present invention has been described as a cosmetic brush for applying mascara. However, the present invention can also be applied to a cosmetic brush for mascara liquid and other liquid cosmetics.

10 cosmetic brush 20C embodiment of the cosmetic brush 20B second reference example of the scraping portion 20A first reference example of the cosmetic container 12 mouth 16 wiper 17 the wiper for mascara 14 Brushes shaft insertion is liquid cosmetic Brush 22 for makeup, brush shaft 23, cap 24, shaft portion 30 of brush shaft, brush portion 30A according to first reference example , conventional brush portion 32, core wire portion 32A, twist portion of core wire portion 32B, twist portion 32C of twist portion of core wire portion Folded core wire part 33 Folded part 34 of the core wire part Bristol group 35 formed on the side of the brush part Tosaka-shaped bristol group 36 formed at the tip part of the brush part In the embodiment of the brush part 37 according to the second reference example The brush part 39 Bristol non-formation area | region 40 A pair of metal wire 41 Folding point 42 Bristol 44 planted in the side surface side of a brush part Brush part tip Bristol planted on the end side

Claims (4)

In the cosmetic brush in which the brush part in which the bristles are radially and spirally dispersed from the twisted part of the pair of metal wires constituting the core wire part is coaxially attached and integrated at the tip of the writing shaft,
A cosmetic brush characterized in that a spiral pile formed by bristol extends forward in a toothed shape at the tip of a brush portion configured by folding back the tip of the core wire portion. 2. The cosmetic according to claim 1, wherein the length of the bristles on the tip side of the brush part including at least the Tosaka shape extending region is longer than the length of the bristles on the entire base part side of the brush part. brush. 2. A non-bristol forming region is provided between the crest-shaped region where the bristles extend forward and the brush side surface region where the bristles are distributed substantially evenly on the outer periphery of the core wire portion. Or the cosmetic brush as described in 2. The makeup brush according to any one of claims 1 to 3, wherein the folded portion of the core wire portion is smaller than a diameter of a brush shaft that fixes and holds the proximal end portion of the core wire portion.

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