JPS6342769A - Writing brush-shaped coating utensil - Google Patents

Abstract

PURPOSE:To carry out pleasant coating without causing thinning even with a highly viscous coating soln. by moving the tip position of a pipe with respect to a coating member, and supplying the coating soln. directly to the tip part of the coating member by pushing out the soln. CONSTITUTION:When a knob 22 is turned clockwise, a rotor 31 is rotated clockwise through a barrel 23 and a ratchet mechanism 35, a screw spindle 36 is further turned clockwise through a rectangular hole 40 and a plane part 38, the screw spindle 36 is advanced by a male screw 37 and female screw 39 to push forward an extrusion piston 19, and the coating soln. 18 is pushed out. Consequently, when the knob 22 is turned counterclockwise, the rotor 31 is not turned by the rachet mechanism 35, and the extrusion piston 19 is not moved. Accordingly, since the coating soln. 18 is supplied directly to the tip part of the coating member 11, thinning is hardly caused in coating. A highly viscous liq. such as rouge is thus coated by the flexible and deformable member.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a brush-like applicator used primarily for applying highly viscous liquid cosmetics such as liquid lipstick.

Conventional technology Conventionally, as an applicator for liquid rosin, etc., a pipe is attached to the base of a brush-like application member, a coating liquid chamber having an extrusion piston is connected to this pipe, and the extrusion piston is moved each time it is used. There is a known method in which the coating liquid is extruded and applied.

Problems to be Solved by the Invention When such an applicator for liquid lipstick or the like is applied, the tip of the applicator is often used, and the amount of application liquid used is the largest at the tip. In the above-mentioned conventional applicator, the coating liquid is supplied to the base of the application member and is transferred to the tip by capillary action, but with a highly viscous coating liquid such as liquid lipstick, this transfer is difficult. It is slow and insufficient, and the coating liquid tends to run out at the tip of the coating member, which tends to cause blurring during coating.

The present invention aims to eliminate such inconveniences and to realize a brush-like applicator that is less likely to cause blurring.

Means for Solving the Problems The present invention provides a brush-like applicator provided at the tip of an applicator body, a pipe whose tip is located within the applicator, and a coating liquid chamber communicating with the pipe and having an extrusion piston. The applicator has a knob that is exposed outside the applicator body and can be rotated manually, and a cam that is connected to the knob, and the tip of the pipe is positioned between the base and the tip of the applicator by rotating the knob. a moving mechanism that moves the pipe or the application member; and an extrusion mechanism that connects the knob and the extrusion piston via a ratchet mechanism and a screw shaft, and that moves the extrusion piston by rotating the knob in one direction to extrude the coating liquid from the pipe. It is a brush-like applicator consisting of.

Function Therefore, in the applicator of the present invention, the tip of the pipe is positioned at the base of the applicator member, and the brush-like applicator member is used to apply the application while being flexibly deformed, and when supplying the application liquid, the knob is rotated. When the tip of the pipe is moved once to the tip of the applicator and then returned to the base, the extrusion piston will move when the tip of the pipe moves to the tip of the applicator or returns to the base. The coating liquid is extruded and supplied directly to the tip of the coating member. Note that the ratchet mechanism prevents the extrusion piston from shifting depending on the direction of rotation of the knob.

EXAMPLES Below, examples illustrating the present invention will be specifically described.

FIGS. 1 to 4 show a brush-like applicator 10 of a type in which a pipe moves according to a first embodiment. In this applicator 10, 1
Reference numeral 1 denotes a brush-like applicator member, which is made of a bundle of synthetic fibers, whose base end is melted and formed into a brim shape, and is fixed to the tip of the applicator main body 12 by pinching this part. 13
is a pipe, the tip of which is located within the application member 11, and the rear end supported by the pipe holder 14. This pipe holder 14 is fitted into the applicator main body 12, and further, the protrusion 15 formed on the curved surface is fitted into the straight groove 16 formed on the inner surface of the applicator main body 12, and the pipe holder 14 is rotated with respect to the writing instrument main body 12. immobile,
It is possible to move back and forth, so that the tip of the pipe 13 can be positioned at the root or tip of the application member 11. 17 is a cartridge, which stores the coating liquid 18;
It has a coating liquid chamber 20 having an extrusion piston 19, a mouth end 21 of which is inserted into the pipe holder 14 to be integrally connected, and the coating liquid chamber 20 communicates with the pipe 13. 22 is a knob
.

It is provided protrudingly from the rear end of the applicator main body 12, and rotated together with the cylinder 23 inside the applicator main body by manual operation.

24 is a cam cylinder, and a protrusion 25 is formed on the outer periphery, and this protrusion 25 is connected to a straight groove 26 formed on the inner surface of the applicator body 12.
A circumferential groove 27 is formed at the tip.

This circumferential groove 27 is formed by a projecting piece 2 protruding from the rear end of the cartridge 17.
A cam 29 is formed in the rear part of the cam 29, and this cam 29 is fitted with the rear end of the cylindrical body 23.
It is mated with 0. Therefore, when the knob 22 is rotated counterclockwise, the cam cylinder 24 moves forward via the cam 29', and at the same time, the pipe 13 moves forward via the cartridge 17 and the pipe holder 14. When the knob 22 is then rotated clockwise and returned, the cam cylinder 24 moves forward via the cam 29'. tube 24,
Cartridge 17, pipe holder 14, and pipe 13 retreat. That is, the cylinder body 23, the cam 29, the cam cylinder 24, the cartridge 17, and the pipe holder 14 constitute a movement mechanism that rotates the knob 22 (secondarily moves the pipe 13).

Reference numeral 31 denotes a rotating body, which is provided at the rear of the cartridge 17 and is pushed backward by a spring 32 so that it can rotate independently of the application liquid chamber and mouth part 21.

A ratchet gear 33 is formed on the rear surface of this rotary body 31, and a ratchet mechanism 35 is formed that engages with a protrusion 34 at the tip of the cylinder body 23 and rotates this rotary body 31 only by clockwise rotation of the cylinder body 23. ing.

Reference numeral 36 is a screw shaft, which protrudes rearward from the extrusion piston 19 of the cartridge 17, and has a right-handed male thread 37 and a flat part 38 formed by cutting the male thread 37 so that it has an oval cross section. The male screw 37 is screwed into a female screw 39 at the rear end of the coating liquid chamber 20, and the flat portion 38 is engaged with a rectangular hole 40 formed in the rotating body 31. Therefore, when the knob 22 is rotated to the right, the rotating body 31 is rotated to the right via the cylindrical body 23 and the ratchet mechanism 35, and the screw shaft 36 is further rotated to the right via the rectangular hole 40 and the flat part 38. 39, the screw shaft 36 moves forward to move the extrusion piston 19 and extrude the coating liquid 18. Conversely, when the knob 22 is rotated to the left, the ratchet mechanism 35 prevents the rotating body 31 from rotating and the extrusion piston 19 does not move. . That is, the cylinder 23, the ratchet mechanism 35, the rectangular hole 40, the screw shaft 36, and the female thread 39 constitute an extrusion mechanism that moves the extrusion piston 19 by rotating the knob in one direction.

Note that 41 is a screw that separates the applicator main body 12 into the front and back so that the cartridge 17 can be installed and replaced.

Further, although not shown in the drawings, this applicator 10 is provided with a cap that covers the applicator member 11.

Since this brush-like applicator 10 has the above configuration, the knob 2
When 2 is rotated to the left and returned to its original position, the pipe 13 moves forward when rotated to the left, and the tip of the pipe 13 returns from the tip to the base of the coating member 11 when rotated to the right, and at this time the coating liquid 18 is It is extruded and supplied to the entire application member 11. Therefore, the coating liquid is also directly supplied to the tip of the coating member 11, making it difficult to cause blurring during coating. Naori-Trille 17
When replacing the applicator main body 12, the applicator main body 12 may be separated into the front and back using the screws 41. At this time, the projecting piece 28 of the cartridge
easily comes off from the circumferential groove 27. After installing the cartridge,
Once the applicator main body 12 is integrated and the knob 22 is operated, the protruding piece 28 fits into the circumferential groove 27.

Furthermore, when replacing the cartridge, the extrusion piston 19 moves as the latter half of the applicator main body 12 rotates, but this is not a problem since there is some space within the coating liquid chamber 20 during the cartridge replacement.

5 to 8 show a brush-like applicator 50 of the type in which the applicator member moves according to the second embodiment. In this applicator 50,
Reference numeral 51 denotes a brush-like application member, which is fixed to the application member holder 53 at the tip of the applicator main body 52 in the same manner as the application member 11 described above.

The applicator holder 53 is fitted into the applicator main body 52 to be movable back and forth, and has four projecting pieces 54 protruding from the rear. 55 is a pipe, the tip of which is located within the application member 51, and the rear end supported by a pipe holder 56. This pipe holder 56 is fixed to the inner surface of the applicator main body 52 by means of four pillars, with the projecting piece 54 passing through the rearward direction, so that the position of the pipe 55 is fixed, and the applicator member 51 is fixed together with the applicator member holder 53. By moving back and forth, the tip of the pipe 55 can be positioned at the base or tip of the applicator 51. 57 is a cartridge, which contains coating liquid 5;
8 and has an extrusion piston 59.
The mouth end 61 is inserted into and coupled to the pipe holder 56, and the coating liquid chamber 60 communicates with the pipe 55. Reference numeral 62 denotes a knob, which is protruded from the rear end of the applicator main body 52, and rotated by manual operation together with the cylinder 63 inside the applicator main body.

64 is a cam cylinder, and a protrusion 65 is formed on the outer periphery, and this protrusion 65 is connected to a straight groove 66 formed on the inner surface of the applicator body 52.
A circumferential groove 67 is formed at the tip, this circumferential groove fits with the rear end of the protrusion 54, and a cam 68 consisting of a concave groove is formed at the rear.
is formed over the entire circumference, and this cam 68 fits into a small protrusion 69 protruding from the cylindrical body 63. For this reason, knob 6
2, the cam cylinder 64 moves back and forth through the cam 68, and at the same time, the application member 5 is rotated through the application member holder 53.
1 moves. That is, the cylinder body 63, the cam 68, the cam cylinder 6
4. The application member holder 53 constitutes a moving mechanism that moves the application member 51 by rotating the knob 62.

A rotating body 70 is provided inside the cam cylinder 64, and is pushed backward by a spring 71 from the cam cylinder 64 so that it can rotate independently. This rotating body 70 is the rotating body 3
1, a ratchet gear 72 is formed on the rear surface of this rotating body 70, and a protrusion 73 at the tip of the cylindrical body 63
This rotating body 7 is engaged only by clockwise rotation of the cylindrical body 63.
A ratchet mechanism 74 is formed in which the 0 is rotated. 75 is a threaded shaft, which, like the threaded shaft 36, protrudes rearward from the extrusion piston 59 of the cartridge 57, and has a right-handed male thread 76 and a flat portion 77 on its circumference.
is formed, and the male thread 76 is connected to the female thread 7 at the rear end of the coating liquid chamber 60.
8 , and the plane portion 77 engages with a rectangular hole 78 formed in the rotating body 70 . Therefore, when the knob 62 is rotated clockwise, the cylinder body 63 and the rotating body 7
0 rotates clockwise, and the screw shaft 75 further rotates clockwise through the rectangular hole 79 and the flat part 77, and the screw shaft 75 advances by the male screw 76 and female screw 78 to move the extrusion piston 59 and extrude the coating liquid. When the knob 62 is rotated to the left, the rotary body 70 is not rotated by the ratchet mechanism 74, and the extrusion piston 59 is not moved. That is, the cylinder 63, the ratchet mechanism 74, the rectangular hole 79, the screw shaft 75, and the female screw 7.
8, the extrusion piston 59 is pushed out by rotating the knob in one direction.
An extrusion mechanism is configured to move the .

Note that 80 is a screw that separates the applicator main body 52 into the front and back. Although not shown, this applicator is also provided with a cap.

Since this brush-like applicator 50 has the above configuration, the knob 6
2 is rotated to the left and returned to its original position, the application member 51 moves backward when rotated to the left, and moves away from the pipe 5 when rotated to the right.
5 is returned to its original position while moving from the tip position of the application member to the base position, and at this time, the application liquid 58 is pushed out and supplied to the entire application member 51. It is also possible to rotate the knob 62 clockwise once and then return it to its original position. In this case, the applicator 51 moves back when the knob 62 is rotated clockwise, and the coating liquid is pushed out at this time. Furthermore, the applicator 51 can be moved back and returned to its original position by continuing to rotate the knob 62 clockwise. In this case, the applicator liquid is pushed out through the retraction and forward movement of the applicator 51.

Note that when replacing the cartridge 57 in this applicator 50, it may be done in exactly the same manner as in the applicator 10 described above.

In each of the above embodiments, the knob is provided at the rear end of the applicator body, but it can also be provided at the front of the applicator body, or it can be made large so that it occupies most of the circumferential surface of the applicator body.
Any configuration can be used as long as it can be operated from the outside.

The cam that makes up the moving mechanism has a pore,
It goes without saying that in addition to using a concave groove to move in both the front and rear directions by the turning force of the knob, it is also possible to use an end cam and move in one direction by a spring.

Further, the cam may have a knob with a limited rotation angle as in the first embodiment, or may be infinitely rotatable as in the second embodiment.Furthermore, the cam profile can be set in various ways, for example, It is also possible to make the tip of the pipe stop at the tip of the applicator member, and at this time, rotate the knob back and forth a small amount so that a large amount of the coating liquid can be pushed out to the tip of the applicator.

The ratchet and screw shaft that make up the extrusion mechanism can have a variety of configurations other than those shown in these examples. good.

Effects of the Invention As described above, the brush-like applicator of the present invention moves the position of the tip of the pipe relative to the applicator member and can extrude and supply the application liquid directly to the tip of the applicator. Even with highly viscous coating liquids such as , it is possible to achieve comfortable application without causing smearing.

[Brief explanation of the drawing]

FIG. 1 is a half-sectional view of the first embodiment of the present invention, where A shows the pipe when it is retracted and B shows when the pipe moves forward. FIG. FIG. 3 is a partially cutaway perspective view of the cylindrical body of the same example, and FIG. 4 is a perspective view of the cartridge of the same example. FIG. 5 is a half sectional view of the second embodiment of the present invention, A shows the application member moving forward, B shows the application member retreating, and FIG. 6 is a sectional view taken along the line VI-Vl of FIG. 5A. , FIG. 7 is a partially cutaway perspective view of the cylindrical body of the same example, and FIG. 8 is a perspective view of the cartridge of the same example. 10.50... Brush-shaped applicator, 11.51.
. . . Application member, 12. 52 . . . Applicator body, 53 . . . Application member holder, 13.
55...Pipe, 14.56...
...Pipe holder, 17.57 ... Cartridge, 18.58 ... Application liquid, 19.
59... Extrusion piston, 20.60...
...Coating liquid chamber, 22.62...Knob, 2
3.63...Cylinder body, 24, 64...
・Cam simple, 29,68...Cam, 31.7
0...--Rotating body, 33, 72...
Ratchet gear, 35.74...Ratchet mechanism, 36, 75...Screw shaft, 37, 7
6...Male thread, 38, 77...Flat part, 39.78...Female thread, 40t79...
・・・・・・Rectangular hole.

Claims (1)

[Claims] 1. A brush-like applicator provided at the tip of the applicator body, a pipe whose tip is located in the applicator member, a liquid chamber communicating with the pipe and having an extrusion piston, and a liquid chamber exposed outside the applicator body. , a moving mechanism that has a knob that can be rotated manually and a cam coupled to the knob, and that moves the pipe or the application member so that the tip of the pipe is located at the base or tip of the application member by rotation of the knob. and an extrusion mechanism that connects the knob and the extrusion piston via a ratchet mechanism and a screw shaft, and moves the extrusion piston by rotating the knob in one direction to extrude the coating liquid from the pipe.