One-piece molded brush member, brush tip unit, liquid application container, method for manufacturing one-piece molded brush member

Abstract

To provide a liquid application container that can stably form multiple brush tips and offers excellent usability. [Solution] The liquid eyeliner 900 comprises a one-piece molded brush member 1 having two brush tips 11 and a disc portion 12 connected to the base end of the brush tips 11, with the two brush tips 11 and the disc portion 12 being integrally formed of resin; a nose piece 2 having a cylindrical shape with one side open and the other side closed by a plate portion 24, the plate portion 24 having two holes 211 the same as those of the brush tips 11; an outer cylinder 4 that holds the nose piece 2; and a relay core 3 positioned behind the one-piece molded brush member 1 and supplying liquid to the one-piece molded brush member 1. The one-piece molded brush member 1 is attached to the nose piece 2 such that the two brush tips 11 protrude outside the nose piece 2 through the two holes 211 of the plate portion 24, and the disc portion 12 is locked to the edge of the open portion of the nose piece 2.

Description

【Technical Field】 【0001】 The present invention relates to a liquid application container. 【Background Art】 【0002】 There are containers called liquid eyeliners and eyeliner pens. This type of liquid application container has a nib at the tip of a stick-shaped gripping portion and supplies a liquid such as a pigment, dye, or solvent from a liquid tank attached to the liquid application container to the nib. Some of this type of liquid application container have a plurality of nibs and are configured to be able to draw multiple lines at once. For example, Patent Document 1 discloses a liquid application tool including a nib composed of a tapered monofilament and a nose piece arranged to cover the outer periphery of the nib, and by providing a partition at the tip of the nose piece, the nib is branched along a plurality of holes. In the technology of Patent Document 1, by dividing the tip portion of one pen bundle with a partition, it is possible to adjust the width and number of lines to be applied. In addition to the method of dividing one pen bundle with a partition, there are known methods such as cutting one pen bundle with a blade to form a plurality of nibs and cutting a bundle of porous bodies to form a plurality of nibs. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2023-83886 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 However, conventional techniques for forming multiple brush tips had the following problems: In the method of dividing a single brush bundle with a partition, it was difficult to place an even amount of brush within the partition of the nosepiece, resulting in an inconsistent number of brush tips and an uneven application line. In the method of forming multiple brush tips by cutting a single brush bundle with a blade, foreign matter (cutting debris) was introduced due to the cutting, the shape and number of brushes became unstable due to the blade's misalignment, and further problems arose with hair breakage and split ends due to the cutting. In addition, in the method of forming multiple brush tips by cutting a bundle of porous material, because porous material was used for the brush tip, it was difficult to draw fine lines compared to a general brush, and the amount of liquid supplied was too much, resulting in reduced usability. 【0005】 This invention has been made in view of these problems, and aims to provide a liquid coating container that can stably form multiple brush tips and has excellent usability. [Means for solving the problem] 【0006】 To solve the above problems, a preferred embodiment of the present invention is an integrally formed brush member having a plurality of brush tips and a disc portion connected to the base ends of the plurality of brush tips, characterized in that the plurality of brush tips and the disc portion are integrally formed from resin. 【0007】 In this embodiment, a hole is provided in the center of the disc portion, and the plurality of brush tips may extend in one direction from a position point-symmetric with respect to the hole on one surface of the disc portion. 【0008】 Another preferred embodiment of the present invention is a brush tip unit comprising an integrally formed brush member having a plurality of brush tips and a disc portion connected to the base end of the brush tips, wherein the plurality of brush tips and the disc portion are integrally formed of resin, and a nose piece having a cylindrical shape with one side open and the other side closed by a plate portion, the plate portion having the same number of holes as the brush tips, wherein the integrally formed brush member is attached to the nose piece such that the plurality of brush tips protrude out of the nose piece through the plurality of holes in the plate portion and the disc portion is locked to the edge of the open portion of the nose piece. 【0009】 In this embodiment, a hole is provided in the center of the disc portion, the plurality of brush tips extend in one direction from point-symmetrical positions on one surface of the disc portion with respect to the hole, and a portion of the tip side of the plurality of brush tips may protrude outside the nosepiece through the plurality of holes in the plate portion. 【0010】 Furthermore, the distance between the multiple brush tips on one surface of the disc portion and the distance between the multiple holes on the plate portion may be the same. 【0011】 Furthermore, a tapered surface may be formed on the side of the plate portion on the inner circumference of the nosepiece, where the inner diameter narrows as it approaches the plate portion. 【0012】 A liquid application container in a preferred embodiment of the present invention comprises an integrally formed brush member having a plurality of brush tips and a disc portion connected to the base end of the brush tips, wherein the plurality of brush tips and the disc portion are integrally formed of resin; a nosepiece having a cylindrical shape with one side open and the other side closed by a plate portion, the plate portion having the same number of holes as the brush tips; an outer cylinder that holds the nosepiece; and a relay core disposed on the rear side of the integrally formed brush member and supplying liquid to the integrally formed brush member, wherein the integrally formed brush member may be attached to the nosepiece such that the plurality of brush tips protrude outside the nosepiece through the plurality of holes in the plate portion and the disc portion is locked to the edge of the open portion of the nosepiece. 【0013】 Furthermore, a hole is provided in the center of the disc portion, the plurality of brush tips extend in one direction from a point-symmetric position with respect to the hole on one surface of the disc portion, a part of the tip side of the plurality of brush tips protrudes outside the nosepiece through the plurality of holes in the plate portion, the intermediate core is inserted into the hole in the disc portion, and the part of the intermediate core that has passed through the hole in the disc portion may be in contact with the plurality of brush tips. 【0014】 Furthermore, the device has a bellows that is cylindrical and has a plurality of first annular protrusions on its outer circumference, and the inner circumference surrounding the hole through the bellows has a second annular protrusion that protrudes inward, the intermediate core has a rear part and a front part that is narrower than the rear part, a stepped portion is formed at the boundary between the rear part and the front part, the intermediate core is inserted into the hole of the bellows with the tip of the front part facing forward, and is pushed forward until the stepped portion is locked into the second annular protrusion, the intermediate core pushed into the hole of the bellows and the integrally formed brush member attached to the nosepiece are housed in the outer cylinder, and the integrally formed brush member attached to the nosepiece and the intermediate core pushed into the hole of the bellows may be held in the outer cylinder such that the part of the intermediate core that has passed through the hole of the disc portion at the front of the intermediate core contacts the plurality of brush tips from the inside, and a gap is secured between the disc portion of the integrally formed brush member and the front end of the bellows. 【0015】 Another preferred embodiment of the present invention is a method for manufacturing an integrally molded brush member, which has a plurality of brush tips and a disc portion connected to the base ends of the plurality of brush tips, wherein the plurality of brush tips and the disc portion are integrally formed of resin, and the method is characterized by comprising: a first step of dissolving a portion of the tip side of a plurality of bundles, each of which a plurality of filaments are bundled together, in a solution to form the plurality of brush tips; a second step of inserting the plurality of bundles obtained in the first step into a plurality of parallel-extending tubes; and a third step of melting the rear ends of the plurality of brush tips inserted into the plurality of tubes by placing them in a disc-shaped mold and heating them, and solidifying them to conform to the shape of the mold to form the disc portion. [Effects of the Invention] 【0016】 According to the present invention, it is possible to provide a liquid coating container that can stably form multiple brush tips and has excellent usability. [Brief explanation of the drawing] 【0017】 [Figure 1] This is a front view of a liquid eyeliner 900, which is a liquid application container according to one embodiment of the present invention, and a cap 901 attached to its tip. [Figure 2] (A) is a perspective view of the liquid eyeliner 900 in Figure 1, (B) is a perspective view of (A) from a different direction, (C) is a view of (A) in the direction of arrow C, and (D) is a cross-sectional view of (C) along line DD. [Figure 3] (A) is a perspective view of the main unit 90 in Figure 2(A), (B) is a perspective view of (A) from a different direction, (C) is a view of (A) in the direction of arrow C, and (D) is a cross-sectional view of (C) along line DD. [Figure 4] (A) is a perspective view of the brush tip unit 9 in Figure 3(A), (B) is a perspective view of (A) from a different direction, (C) is a view of (A) in the direction of arrow C, and (D) is a cross-sectional view of (C) along line DD. [Figure 5](A) is a perspective view of the integrally formed pen member 1 in Fig. 4(A), (B) is a perspective view of (A) seen from another direction, (C) is a view of (A) seen in the direction of arrow C, and (D) is a view of (A) seen from the direction of arrow D. [Figure 6] (A) is a perspective view of the nose piece 2 in Fig. 4(A), (B) is a perspective view of (A) seen from another direction, (C) is a view of (A) seen in the direction of arrow C, and (D) is a sectional view taken along the D-D line of (C). [Figure 7] (A) is a perspective view of the relay core 3 in Fig. 3(D), (B) is a perspective view of (A) seen from another direction, (C) is a view of (A) seen in the direction of arrow C, and (D) is a view of (A) seen from the direction of arrow D. [Figure 8] (A) is a perspective view of the outer cylinder 4 in Fig. 3(A), (B) is a perspective view of (A) seen from another direction, (C) is a view of (A) seen in the direction of arrow C, and (D) is a view of (A) seen from the direction of arrow D. [Figure 9] (A) is a perspective view of the hump 5 in Fig. 3(D), (B) is a perspective view of (A) seen from another direction, (C) is a view of (A) seen in the direction of arrow C, and (D) is a view of (A) seen from the direction of arrow D. [Figure 10] (A) is a perspective view of the tail plug 7 in Fig. 3(D), (B) is a perspective view of (A) seen from another direction, (C) is a view of (A) seen in the direction of arrow C, and (D) is a view of (A) seen from the direction of arrow D. [Figure 11] (A) is a perspective view of the outer 8 in Fig. 2(A), (B) is a perspective view of (A) seen from another direction, (C) is a view of (A) seen in the direction of arrow C, and (D) is a view of (A) seen from the direction of arrow D. [Figure 12] It is a flowchart showing the manufacturing method of the integrally formed pen member 1 in Fig. 5. 【Embodiments for Carrying Out the Invention】 【0018】 The following describes a liquid eyeliner 900, which is one embodiment of the present invention, with reference to the drawings. This liquid eyeliner 900 is a cosmetic tool for applying a cosmetic liquid to the hair around the user's eyes. As shown in Figure 1, the liquid eyeliner 900 has a long, slender shape like a pen, and a cap 901 is attached to the tip. When the user traces their eyebrows or tear troughs (below the lower eyelashes) with the two brush tips 11 of the liquid eyeliner 900, the liquid from the brush tips 11 is transferred to the eyebrows or tear troughs, allowing two parallel lines to be drawn. Hereafter, in the description, this embodiment will be described assuming an XYZ Cartesian coordinate system consisting of an X-axis parallel to the extension direction of the liquid eyeliner 900, and mutually orthogonal Y and Z axes that are also orthogonal to the X-axis. Furthermore, in the description below, the side with the brush tip 11 in the X-axis direction may be referred to as the front side, and the opposite side may be referred to as the back side. 【0019】 As shown in Figure 2, the liquid eyeliner 900 has a main unit 90 housed inside an outer casing 8. As shown in Figure 3, the main unit 90 has an outer cylinder 4, a brush tip unit 9, a connecting core 3, a bellows 5, and a tail plug 7. A liquid tank 6 is attached to the rear side of the integrally molded brush member 1. The liquid tank 6 is in contact with the connecting core 3. With the liquid tank 6 attached, the liquid in the liquid tank 6 is supplied to the brush tip 11 of the integrally molded brush member 1 via the connecting core 3. 【0020】 As shown in Figure 11, the outer 8 is tubular in shape and extends in a straight line. An opening 87 is formed at the front end of the outer 8. The rear end of the outer 8 is closed by a plate portion 84, and an opening 88 is formed in the plate portion 84 with an inner diameter approximately half that of the opening 87. Inside the outer 8, there is a hole 89 that passes through the outer 8. 【0021】 As shown in Figure 8, the outer cylinder 4 is cylindrical. The outer cylinder 4 has a tapered portion 41 and a tubular portion 42. The boundary between the tapered portion 41 and the tubular portion 42 protrudes outward as a flange portion 43. The outer circumference of the tapered portion 41 is a tapered surface in which its outer diameter decreases as it moves away from the flange portion 43. A recess 431 is formed on the front side of the flange portion 43 of the tapered portion 41, and a convex portion 432 is formed on the front side of the recess 431. The portion of the tapered portion 41 in front of the convex portion 432 has a steep taper, while the portion between this portion and the tip of the tapered portion 41 has a gentler taper. 【0022】 A recess 433 is formed on the rear side of the flange 43 of the tubular portion 42, and a protrusion 434 is formed behind it. A protrusion 45 is formed behind the protrusion 434 of the tubular portion 42. An opening 47 is formed at the front end of the tapered portion 41 of the outer cylinder 4, and an opening 48 is formed at the rear end of the tubular portion 42. Inside the outer cylinder 4, there is a hole 49 that passes through the outer cylinder 4. As shown in Figure 3, a projection 452 is formed on the inner circumference of the outer cylinder 4 at a position in front of the protrusion 432. The inner diameter of the projection 452 decreases towards the rear. 【0023】 As shown in Figure 4, the brush tip unit 9 is formed by attaching an integrally molded brush member 1 to the nosepiece 2 and integrating them together. 【0024】 As shown in Figure 6, the nosepiece 2 is cylindrical. The nosepiece 2 has a tapered portion 21 and a tubular portion 22. The boundary between the tapered portion 21 and the tubular portion 22 protrudes outward as a flange portion 23. The outer circumference of the tapered portion 21 is a tapered surface in which its outer diameter decreases as it moves away from the flange portion 23. The front end of the tapered portion 41 in the outer cylinder 4 is closed off by the plate portion 24. There are two protruding cylindrical portions 210 at positions that are point-symmetric with respect to the center of the plate portion 24. The two protruding cylindrical portions 210 protrude forward from the plate portion 24. The distance between the center of the plate portion 24 and each of the two protruding cylindrical portions 210 is the same. The two protruding cylindrical portions 210 have holes 211 that pass through them. On the inner circumference of the tapered portion 21 of the nosepiece 2, a tapered surface 212 is formed on the side of the plate portion 24, where the inner diameter narrows as it approaches the plate portion 24. 【0025】 The outer circumference of the flange portion 23 is a tapered surface whose outer diameter decreases towards the front. The inclination of the flange portion 23 is steeper than the inclination of the tapered portion 21. 【0026】 An opening 221 is provided at the rear end of the tubular portion 22. The thickness of the portion of the tubular portion 22 surrounding the opening 221 is thinner than the thickness of the portion in front of it. There is a hole 29 inside the nosepiece 2. The hole 29 is connected to the two front holes 211. The inner diameter of the hole 29 is smaller than the inner diameter of the opening 221. A stepped portion 271 is formed at the boundary between the hole 29 and the opening 221. 【0027】 As shown in Figure 5, the integrally molded brush member 1 has two brush tips 11 and a disc portion 12 connected to the base end of the brush tips 11. The integrally molded brush member 1 is formed by integrally molding the two brush tips 11 and the disc portion 12 from resin. 【0028】 The outer diameter of the disc portion 12 is slightly larger than the inner diameter of the opening 221 of the nosepiece 2. The thickness of the disc portion 12 in the X direction is approximately half the thickness of the opening 221 of the nosepiece 2 in the X direction. A hole 121 is provided at the center of the disc portion 12, passing through it. 【0029】 The two brush tips 11 extend forward from a point-symmetrical position with respect to the hole 121 on the front surface of the disc portion 12. The distance between the center of the disc portion 12 and each of the two brush tips 11 is the same. The distance between the two brush tips 11 on the disc portion 12 is the same as the distance between the two holes 211 in the nosepiece 2. The tips of the two brush tips 11 are tapered. 【0030】 Figure 12 is a flowchart of the manufacturing method for the integrally formed brush member 1. As shown in Figure 12, the manufacturing method for the integrally formed brush member 1 has three steps. In the first step, a portion of the tip side of two bundles of PBT filaments is dissolved in a solution, and the tip side is made tapered to form two brush tips 11 (S100). 【0031】 In the second step, the two bundles obtained in the first step are inserted into two parallel-extending cylinders (S110). 【0032】 In the third step, the rear ends (the parts that protrude from the tubes) of the two brush tips 11 inserted into the two tubes are placed in a disc-shaped mold and heated to melt them, and the solidified material conforming to the shape of the mold forms the disc portion 12 (S120). Here, a columnar body for forming a hole 121 is provided at the center of the bottom surface of this mold. 【0033】 In Figure 4, the nosepiece 2 and the integrally formed brush member 1 in the brush tip unit 9 are integrated as follows: The nosepiece 2 and the integrally formed brush member 1 are positioned front to back so that the positions of the two holes 211 and the two brush tips 11 on the YZ plane are aligned, and the integrally formed brush member 1 is inserted into the hole 29 from the opening 221 of the nosepiece 2. The integrally formed brush member 1 is then pushed forward until the tapered portions at the tips of the two brush tips 11 protrude outside the nosepiece 2 through the two holes 211, and the outer circumference of the disc portion 12 is locked into the stepped portion 271, which is the edge of the open portion of the nosepiece 2. This integrates the nosepiece 2 and the integrally formed brush member 1. Here, as described above, the thickness of the disc portion 12 in the X direction is approximately half the thickness of the opening 221 of the nosepiece 2 in the X direction. Therefore, as shown in Figure 4(B), when the nosepiece 2 and the integrally formed brush member 1 are integrated, a disc-shaped recess 251 having a thickness of approximately half that of the opening 221 is formed at the rear end of the brush tip unit 9. 【0034】 As shown in Figure 7, the intermediate core 3 is rod-shaped. The intermediate core 3 is made of resin fibers. The intermediate core 3 has a front part 31 and a rear part 32. The outer diameter of the front part 31 is smaller than the outer diameter of the rear part 32. A stepped portion 371 is formed at the boundary between the front part 31 and the rear part 32. The tip of the front part 31 is rounded. 【0035】 As shown in Figure 9, the bellows 5 is cylindrical. Multiple annular protrusions 52 are provided on the outer circumferential surface of the bellows 5. The multiple annular protrusions 52 are arranged at equal intervals in the X direction. The spacing between the front and rear annular protrusions 52 and the thickness of the annular protrusions 52 themselves are approximately the same. The outer diameter of the annular protrusions 52 is slightly smaller than the inner diameter of the hole 49 in the outer cylinder 4. Inside the bellows 5 there is a hole 59 that passes through the bellows 5. A portion of the bellows 5 slightly away from the multiple annular protrusions 52 protrudes outward as a flange portion 53. The outer diameter of the front end portion 51 of the flange portion 53 of the bellows 5 is slightly smaller than the outer diameter of the flange portion 53. A stepped portion 553 is formed at the boundary between the front end portion 51 and the flange portion 53. 【0036】 The portion of the bellows 5 slightly away from the multiple annular projections 52 protrudes outward as a flange portion 55. The outer diameter of the flange portion 53 is slightly smaller than the outer diameter of the flange portion 55. The outer diameter of the flange portion 55 is slightly smaller than the inner diameter of the hole 49 in the outer cylinder 4. As shown in Figure 3(D), there is an inwardly protruding annular projection 571 on the front side of the inner circumferential surface surrounding the hole 59 of the bellows 5. The annular projection 571 is larger than the outer diameter of the front portion 31 of the intermediate core 3 and smaller than the outer diameter of the rear portion 32. The inner diameter of the portion of the hole 59 of the bellows 5 in front of the annular projection 571 is slightly larger than the outer diameter of the rear portion 32 of the intermediate core 3. 【0037】 As shown in Figure 10, the tail plug 7 is cylindrical. The tail plug 7 has a tapered portion 71 and an intermediate portion 72. The portion of the intermediate portion 72 slightly behind the center in the X direction protrudes outward as a flange portion 734. The rear end of the intermediate portion 72 protrudes outward as a flange portion 75. The outer diameter of the flange portion 734 is slightly smaller than the outer diameter of the flange portion 75. The outer diameter of the flange portion 734 is slightly larger than the inner diameter of the hole 49 in the outer cylinder 4. The outer diameter of the flange portion 75 is approximately the same as the outer diameter of the outer 8. 【0038】 In Figure 3, the outer cylinder 4, the brush tip unit 9, the intermediate core 3, the bellows 5, and the tail plug 7 are integrated as follows. First, the intermediate core 3 is inserted into the hole 59 of the bellows 5 with the tip of the front part 31 facing forward, and pushed forward until the stepped part 371 of the intermediate core 3 is locked onto the annular projection 571 of the bellows 5. Next, the bellows 5 is inserted into the hole 49 of the outer cylinder 4 through the opening 48 of the outer cylinder 4, and pushed forward until the flange part 53 of the bellows 5 is locked onto the protruding part 452 of the outer cylinder 4. Next, the tail plug 7 is inserted into the hole 49 of the outer cylinder 4 through the opening 48 of the outer cylinder 4, and pushed forward until the flange part 75 of the tail plug 7 is in contact with the rear end of the outer cylinder 4. 【0039】 Next, the brush tip unit 9 and the outer cylinder 4 are positioned front to back so that the hole 121 in the disc portion 12 of the brush tip unit 9 and the position of the intermediate core 3 inside the outer cylinder 4 on the YZ plane are aligned, and the brush tip unit 9 is inserted into the hole 49 of the outer cylinder 4 through the opening 47 of the outer cylinder 4. The brush tip unit 9 is then pushed backward until the intermediate core 3 is inserted into the hole 121 of the disc portion 12 and the flange portion 23 is locked to the tip of the outer cylinder 4. As a result, the outer cylinder 4, brush tip unit 9, intermediate core 3, bellows 5, and tail plug 7 are integrated as the main body unit 90. Here, as shown in Figure 3(D), with the brush tip unit 9 pushed into the hole 49 of the outer cylinder 4, a part of the front end portion 51 of the bellows 5 is housed in the recess portion 251 of the brush tip unit 9, and a gap 50 is formed between the disc portion 12 and the front end portion 51. Furthermore, the portion of the front part 31 of the intermediate core 3 that passes through the hole 121 of the disc part 12 makes contact with both of the two brush tips 11 from the inside. 【0040】 In Figure 2, the main unit 90 and the outer 8 are integrated as follows: The main unit 90 is inserted into the hole 89 of the outer 8 through the opening 87 of the outer 8. Then, the main unit 90 is pushed backward until the flange portion 43 of the main unit 90 contacts the front end of the outer 8. This integrates the main unit 90 and the outer 8 into a liquid eyeliner 900. 【0041】 The above describes the details of the configuration of this embodiment. The liquid eyeliner 900, which is a liquid application container of this embodiment, comprises an integrally formed brush member 1 having two brush tips 11 and a disc portion 12 connected to the base end of the brush tips 11, with the two brush tips 11 and the disc portion 12 being integrally formed of resin; a nose piece 2 which is cylindrical with one side open and the other side closed by a plate portion 24, and the plate portion 24 has two holes 211 the same as those of the brush tips 11; an outer cylinder 4 which holds the nose piece 2; and a relay core 3 which is positioned behind the integrally formed brush member 1 and supplies liquid to the integrally formed brush member 1. The integrally formed brush member 1 is attached to the nose piece 2 such that the two brush tips 11 protrude outside the nose piece 2 through the two holes 211 of the plate portion 24, and the disc portion 12 is locked to the edge of the open portion of the nose piece 2. Therefore, it is possible to stably form multiple brush tips 11 and provide a liquid coating container with excellent usability. 【0042】 Furthermore, the liquid eyeliner 900, which is a liquid application container in this embodiment, has a cylindrical bellows 5 with a plurality of annular protrusions 571 on its outer surface, and annular protrusions 571 that protrude inward on the inner surface surrounding the hole 59 through which the bellows 5 passes, and the intermediate core 3 has a rear part 32 and a front part 31 that is thinner than the rear part 32, and a stepped part 37 is formed at the boundary between the rear part 32 and the front part 31, and the intermediate core 3 is inserted into the hole 59 of the bellows 5 with the tip of the front part 31 facing forward, and moves forward until the stepped part 37 is engaged with the annular protrusions 571 The bellows 5 has the intermediate core 3 pushed into the hole 59, and the integrally formed brush member 1 is attached to the nosepiece 2, and these are housed in the outer cylinder 4. The integrally formed brush member 1 attached to the nosepiece 2 and the intermediate core 3 pushed into the hole 59 of the bellows 5 are held in the outer cylinder 4 such that the part of the intermediate core 3 that passes through the hole 121 of the disc portion 12 at the front 31 of the intermediate core 3 contacts multiple brush tips 11 from the inside, and a gap 50 is secured between the disc portion 12 of the integrally formed brush member 1 and the front end of the bellows 5. Therefore, it is possible to prevent excessive liquid supply from the intermediate core 3 to the brush tips 11. 【0043】 Although one embodiment of the present invention has been described above, the following modifications may be made to this embodiment. 【0044】 (1) In the above embodiment, the number of brush tips 11 of the integrally formed brush member 1 and the number of holes 211 in the nosepiece 2 were two. However, the number of brush tips 11 and holes 211 may be three or more. In this case, the three or more brush tips 11 extend forward from a position point-symmetric with respect to the holes 121 on one surface of the disc portion 12, and a part of the tip side of the three or more brush tips 11 protrudes outside the nosepiece 2 through the three or more holes 211 in the plate portion 24. 【0045】 (2) In the above embodiment, the plate portion 24 of the nosepiece 2 had two protruding cylindrical portions 210 that projected forward, and holes 211 were provided in these protruding cylindrical portions 210. However, the protruding cylindrical portions 210 may be omitted, and the plate portion 24 may have the same number of holes 211 as the brush tip 11. [Explanation of Symbols] 【0046】 1. Integrated brush member 2 nosepieces 3 relay cores 4. Outer cylinder 5. Bellows 6 liquid tanks 7. Tail plug 8 Outerwear 9 units 11 Brush tip 12 Disc section 21 Tapered section 22 Tubular part 23 Guard section 24 Board part 31 Front 32 Rear 37 holes 41 Tapered section 42 Tubular part 43 Guard section 45 Convex part 47 Opening 48 openings 49 holes 50 gaps 51 Front end 52 Annular projection 53 Guard section 55 Guard section 57 holes 71 Tapered section 72 Middle section 75 Guard section 84 Board part 87 Opening 88 Opening 89 holes 90 Main Unit 121 holes 210 Projecting cylinder part 211 holes 221 Opening 251 Recessed area 271 Stepped section 371 Stepped section 431 Recess 432 Convex part 433 recess 434 Convex part 452 Protrusion 553 Step section 570 gap 571 Annular projection 734 Tsuba (guard) 900 Liquid Eyeliner 901 Cap

Claims

[Claim 1] A one-piece brush member that is attached to the nosepiece of a liquid application container, A one-piece brush member having multiple brush tips and a disc portion connected to the base ends of the multiple brush tips, characterized in that the multiple brush tips and the disc portion are integrally formed from resin. [Claim 2] A hole is provided in the center of the aforementioned disc portion, passing through the disc portion. The plurality of brush tips extend in one direction from a position symmetrical to the hole on one surface of the disc portion. The integrally formed brush member according to feature 1. [Claim 3] A one-piece molded brush member having multiple brush tips and a disc portion connected to the base end of the brush tips, wherein the multiple brush tips and the disc portion are integrally formed from resin, A nosepiece having a cylindrical shape with one end open and the other end closed by a plate, the plate having the same number of holes as the brush tip, and It is equipped with, The integrally formed brush member is attached to the nosepiece such that the plurality of brush tips protrude outside the nosepiece through the plurality of holes in the plate portion, and the disc portion is locked to the edge of the open portion of the nosepiece. A brush tip unit characterized by the following features. [Claim 4] A hole is provided in the center of the aforementioned disc portion, passing through the disc portion. The plurality of brush tips extend in one direction from point-symmetrical positions across the holes on one surface of the disc portion, and a portion of the tip side of the plurality of brush tips protrudes outside the nosepiece through the plurality of holes in the plate portion. The brush tip unit according to feature 3. [Claim 5] The distance between the multiple brush tips on one surface of the disc portion is the same as the distance between the multiple holes on the plate portion. The brush tip unit according to feature 4. [Claim 6] On the inner circumference of the nosepiece, on the side of the plate portion, a tapered surface is formed where the inner diameter narrows as it approaches the plate portion. The brush tip unit according to feature 5. [Claim 7] A one-piece molded brush member having multiple brush tips and a disc portion connected to the base end of the brush tips, wherein the multiple brush tips and the disc portion are integrally formed from resin, A nosepiece having a cylindrical shape with one end open and the other end closed by a plate portion, the plate portion having the same number of holes as the brush tip, The outer cylinder that holds the nosepiece, A relay core is positioned on the rear side of the integrally formed brush member and supplies liquid to the integrally formed brush member. It is equipped with, The integrally formed brush member is attached to the nosepiece such that the plurality of brush tips protrude outside the nosepiece through the plurality of holes in the plate portion, and the disc portion is locked to the edge of the open portion of the nosepiece. A liquid coating container characterized by the following features. [Claim 8] A hole is provided in the center of the aforementioned disc portion, passing through the disc portion. The plurality of brush tips extend in one direction from a position point-symmetric with respect to the hole on one surface of the disc portion, and a portion of the tip side of the plurality of brush tips protrudes outside the nosepiece through the plurality of holes in the plate portion. The intermediate core is inserted into the hole in the disc portion, and the portion of the intermediate core that has passed through the hole in the disc portion is in contact with the multiple brush tips. The liquid coating container according to feature 7. [Claim 9] It has a bellows that is cylindrical and has a plurality of first annular protrusions on its outer surface, The inner circumferential surface surrounding the hole through which the bellows passes has a second annular projection that protrudes inward. The aforementioned intermediate core has a rear portion and a front portion that is narrower than the rear portion, and a stepped portion is formed at the boundary between the rear portion and the front portion. The relay core is inserted into the bellows hole with its front tip facing forward, and pushed forward until the stepped portion is engaged with the second annular projection. The bellows hole into which the intermediate core is pushed, and the integrally formed brush member attached to the nosepiece are housed in the outer cylinder. The integrally molded brush member attached to the nosepiece and the intermediate core pushed into the bellows hole are held in the outer cylinder such that the portion of the intermediate core that passes through the hole in the disc portion at the front of the core contacts the multiple brush tips from the inside, and a gap is secured between the disc portion of the integrally molded brush member and the front end of the bellows. The liquid coating container according to feature 8. [Claim 10] A method for manufacturing an integrally formed brush member having a plurality of brush tips and a disc portion connected to the base ends of the plurality of brush tips, wherein the plurality of brush tips and the disc portion are integrally formed from resin, The first step involves dissolving a portion of the tip side of multiple bundles, each of which multiple filaments are bundled together, in a solution to form the multiple brush tips, A second step involves inserting the bundles obtained through the first step into a plurality of parallel-extending cylinders, A third step involves placing the rear ends of the multiple brush tips inserted into the multiple tubes into a disc-shaped mold and heating them to melt them, and the resulting solidified material conforming to the shape of the mold forms the disc portion. A method for manufacturing an integrally molded brush member, characterized by having the following:

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