JP2590918Y2 - Liquid applicator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid applicator for applying a liquid such as mascara.

[0002]

2. Description of the Related Art When applying mascara to the entire eyelashes, it is necessary to discharge the mascara at a constant width, and the liquid discharge port of the applicator must also be elongated. On the other hand, it is desirable to reduce the cross section of the liquid guide path that guides the liquid stored inside the applicator to the vicinity of the liquid discharge port due to structural problems. Therefore, it is necessary to provide a liquid dispersion path between the liquid guide path and the liquid discharge port to increase the lateral width of the liquid flow path. However, the liquid is difficult to be uniformly dispersed in the liquid dispersion path, and there is a problem in that the liquid discharge amount at each part of the liquid discharge port varies, and when the liquid is applied, shading occurs.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a liquid applicator that can uniformly discharge liquid from each part of an elongated liquid discharge port and does not produce shading when applied. Aim.

[0004]

A liquid applicator according to the first invention devised to achieve the above object is provided with a liquid dispersion path 2 for expanding the width of a liquid flow path ahead of a liquid guide path 1. In the liquid applicator provided with the elongated liquid ejection port 3, the shape of the liquid dispersion path 2 is substantially symmetrical with respect to the center line of a normal line perpendicular to the application surface at the center position of the liquid ejection port 3. .

[0005] A liquid applicator of the second invention devised to achieve the above object also has an elongated liquid discharge port through a liquid dispersion path 2 which enlarges the width of a liquid flow path ahead of a liquid guide path 1. 3 in which the shape of the liquid dispersion path 2 is asymmetrical with respect to the center line of a normal line perpendicular to the application surface at the center position of the liquid discharge port 3. When divided at the position of the line, the vertical width of the liquid ejection port 3 on the side with the larger volume is made narrower, and the vertical width of the liquid ejection port 3 on the side with the smaller volume is made larger.

A liquid applicator according to a third invention devised to achieve the above object is also provided with an elongated liquid discharge port through a liquid dispersion path 2 extending the width of a liquid flow path ahead of a liquid guide path 1. In the liquid applicator provided with 3, a flow dividing plate 4 for dividing liquid into right and left is provided at a substantially central portion of the liquid dispersion path 2.

[0007]

In the liquid applicator of the first invention, the shape of the liquid dispersion path 2 is symmetrical with respect to the center line of the liquid discharge port 3 at the center perpendicular to the application surface at the center position of the liquid discharge port 3. 2, the liquid is substantially uniformly dispersed to the left and right, and the liquid discharge amount at each portion of the liquid discharge port 3 does not vary.

In the liquid applicator of the second invention, even if the shape of the liquid dispersion path 2 is asymmetrical with respect to the normal line perpendicular to the application surface at the center position of the liquid discharge port 3, the liquid dispersion path is not disturbed. When the path 2 is divided at the position of the center line, the vertical width of the liquid discharge port 3 on the side with the large volume is narrow and the vertical width of the liquid discharge port 3 on the side with the small volume is large. Is substantially uniform.

In the liquid applicator of the third invention, the flow dividing plate 4 divides the liquid in the liquid dispersion path 2 substantially equally on both sides to prevent the liquid flow from being biased to one side.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an embodiment of the first invention shown in FIGS. 1 to 4 will be described in detail. FIG. 1 shows the overall structure, in which a front shaft 7 is joined to a front end of a shaft cylinder 5 via a joint 6, and a liquid guide path 1 is provided inside the front shaft 7. The front end of the liquid guide path 1 is bent toward the side end, and in front of the liquid guide path 1, the liquid dispersion path 2 having an enlarged horizontal width of the liquid flow path and obliquely directed.
The distal end of the liquid dispersion path 2 is an elongated liquid discharge port 3 as shown in FIG. On both sides of the liquid discharge port 3, brushes 8 are protruded. The liquid dispersion path 2 is a substantially triangular shape that is substantially symmetrical with respect to the center line (a-a line) of a normal line perpendicular to the application surface b at the center position of the liquid discharge port 3. As shown in FIG. 3, the liquid dispersion path 2 has a larger vertical width at the end near the liquid guide path 1 than at the end near the liquid discharge port 3. By doing so, the condition of discharging the liquid from the liquid discharge port 3 becomes better than when the vertical width is constant.

A tank 1 containing a mascara 9 is mounted in the barrel 5.
0 is provided, and a piston 11 slidable in the tank is provided. At the rear of the piston 11, a male screw 1
2 and a rod 14 having a flat portion 13 formed on a part of the male screw 12. The rod 14 is a fixed cylinder 15 that cannot be rotated in the cylinder and cannot move in the axial direction.
The male screw 12 is screwed into the female screw 16 (see FIG. 4) formed on the inner surface of the center hole.
The rod 14 is also inserted into the rotary cylinder 17. Rotating cylinder 1
7, a flange 18 is provided on the outer surface of the front end, a ratchet 19 is formed on the rear surface, a flat portion 20 (see FIG. 4) is formed on the inner surface of the front end, and a fitting portion having a polygonal cross section is further formed on the rear end. 21 are provided. The rod 14 and the rotary cylinder 17 are flat portions 13, 2
0 to rotate integrally. The fitting portion 21 at the rear end of the rotary cylinder 17 is inserted into an inner hole of a tail cylinder 22 arranged behind the shaft cylinder 5. The inner hole of the transition piece 22 is also polygonal, and the transition piece 22 and the rotary cylinder 17 rotate integrally. Therefore, transition piece 2
When 2 is rotated, the rod 14 rotates integrally via the rotary cylinder 17. A retaining ring 23 is fixed to the inner rear end of the barrel 5. The tail tube 22 has a locking tube portion 25 provided with a slit 24 at the front end. The locking tube portion 25 is pushed into the retaining ring 23 from the rear, and a jaw 26 provided at the front end of the locking tube portion 25 is formed. The retaining ring 23 is engaged with the front edge.
A spring receiver 28 provided with a ratchet 27 on the front surface on the outer periphery of the rotary cylinder 17 and behind the flange 18 is arranged so as not to rotate with respect to the shaft cylinder 5 but to be movable in the axial direction. This spring receiver 28
Is pushed forward by a spring 29 disposed at the rear thereof, and the ratchet 27 is engaged with a ratchet 19 provided on the flange 18 of the rotary cylinder 17. Spring receiver 28
Moves backward when the rotary cylinder 17 rotates and the teeth of the ratchet 19 cross over the teeth of the ratchet 27 of the spring receiver 28. Further, the ratchet 27 of the spring receiver 28 is
The rotation of is regulated in one direction.

When the tail cylinder 22 is rotated, the rod 14 rotates as described above, and the male screw 12 is fed by the female screw 16 of the fixed cylinder 15.
Moves forward, the mascara 9 is pushed out of the tank 10 and flows into the liquid guide path 1 of the front shaft 7. The mascara 9 is applied by discharging from the liquid discharge path 3 through the liquid guide path 1 and further through the liquid dispersion path 2,
Since the liquid dispersion path 2 has the above-described shape, the mascara 9 is uniformly dispersed and discharged from each part of the liquid discharge port 3 substantially uniformly.

Next, an embodiment of the second invention shown in FIGS. 5 and 6 will be described. In the case of the liquid applicator of the present invention, the shape of the liquid dispersion path 2 is asymmetrical with respect to the center line (a-a line) of the normal line perpendicular to the application surface b at the center position of the liquid discharge port 3. is there. When the liquid dispersion path 2 is divided at the position of the center line, the vertical width of the liquid discharge port 3 having a smaller volume is set to be smaller than the vertical width of the liquid discharge port 3 having a larger volume. As shown in FIG. The other structure is the same as that of the first embodiment.

When the liquid dispersion path 2 is divided at the position of the center line as described above, the portion having a larger volume has a larger liquid volume and a higher flow rate, but has a smaller area of the liquid discharge port 3, and conversely, On the side of the small volume, the liquid volume is small and the flow velocity is slow, but the area of the liquid discharge port 3 is large. Therefore, the liquid discharge amount from each part of the liquid discharge port 3 (the area of the liquid discharge port × the flow rate of the liquid) Speed) is substantially uniform.

Next, FIG. 7 shows an embodiment of the third invention. In the case of this invention, a flow dividing plate 4 is provided substantially at the center of the liquid dispersion path 2. Other structures are the same as those of the first embodiment.

Since the liquid is divided into right and left by the flow dividing plate 4, the liquid is not uniformly biased to one side and is uniformly dispersed throughout.

[0017]

As described above, the liquid applicators of the first, second and third inventions can equalize the amount of liquid ejected from each part of the liquid ejection port. ,
Therefore, it is possible to eliminate the occurrence of shading when applied.

[Brief description of the drawings]

FIG. 1 is an overall sectional view.

FIG. 2 is a perspective view of a front end.

FIG. 3 is a sectional view taken along line AA.

FIG. 4 is an exploded perspective view of a liquid discharge mechanism provided in the shaft cylinder.

FIG. 5 is a sectional view of a main part.

FIG. 6 is a front view of a liquid discharge port.

FIG. 7 is a sectional view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid guideway 2 Liquid dispersion path 3 Liquid discharge port 4 Dividing plate 5 Shaft cylinder 6 Joint 7 Front shaft 8 Brush 9 Mascara 10 Tank 11 Piston 12 Male screw 13 Flat part 14 Rod 15 Fixed cylinder 16 Female screw 17 Rotating cylinder 18 Flange Reference Signs List 19 ratchet 20 flat part 21 fitting part 22 transition piece 23 retaining ring 24 slit 25 locking cylinder part 26 jaw part 27 ratchet 28 spring receiver 29 spring

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B05C 7/00-21/00 A45D 34/04 510 A46B 11/00 101

Claims (3)

(57) [Scope of request for utility model registration] In a liquid applicator provided with an elongated liquid discharge port (3) via a liquid dispersion path (2) extending the width of a liquid flow path ahead of a liquid guide path (1), the shape of the liquid dispersion path (2) is changed to a liquid discharge port. 3. A liquid applicator characterized in that the liquid applicator has a substantially symmetrical shape with respect to a center line perpendicular to the application surface at the center position of 3. 2. An elongated liquid discharge port 3 is provided ahead of the liquid guide path 1 through a liquid dispersion path 2 that enlarges the lateral width of the liquid flow path, and the shape of the liquid dispersion path 2 is set at the center position of the liquid discharge port 3. In a liquid applicator having a left-right asymmetric shape with a normal line perpendicular to the application surface as a center line, when the liquid dispersion path 2 is divided at the position of the center line, the liquid discharge port 3 on the side with the larger volume A liquid applicator characterized in that the vertical width is narrowed and the vertical width of the liquid ejection port 3 on the small volume side is widened. 3. A liquid applicator in which an elongated liquid discharge port 3 is provided ahead of a liquid guide path 1 through a liquid dispersion path 2 which enlarges the lateral width of the liquid flow path. A liquid applicator, wherein a flow dividing plate 4 for dividing the liquid into left and right sides is provided.