JP2000094888A - Applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an applicator which is so structured that a rotor is held protruding from the tip of a liquid storage chamber and is rotated to apply a liquid. SOLUTION: A gap is formed in the retainer part of a rotor 4, and a valve mechanism is arranged between the rotor 4 and a liquid storage chamber 1, and further, the valve mechanism is structured of a valve element and a valve seat member brought into contact with each other in the perpendicular direction. Further, the retainer part of the rotor 4 is arranged in such a manner that the retainer part moves back and forth, and the valve mechanism is arranged between the rotor 4 and the liquid storage chamber 1. The valve mechanism is structured of the valve element provided on the retainer part of the rotor 4 and the valve seat member mounted in the liquid storage chamber 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an applicator in which a rotating body is held at a tip of a liquid storage chamber in a protruding state and a liquid is applied by the rotating body. Examples include writing implements such as correction fluids and ballpoint pens, spotters for storing liquid lipstick and perfume, cosmetics such as liquid drying agents and liquid shipping agents, and seasoning containers such as mayonnaise and ketchup.

[0002]

2. Description of the Related Art As one example of the prior art, an applicator as shown in FIG. 10 is known. A rotating body 102, which is an application unit, is rotatably attached to the tip of the liquid storage chamber 101. Further, the rotating body 102 and the liquid storage chamber 101
A valve mechanism including a valve section 103 and a valve seat section 104 is provided between the valve mechanism 103 and the valve section 103. Reference numeral 105 denotes the valve unit 1
03 is a repellent member for urging the valve rod 106 having the formed therein in the direction in which the valve mechanism closes.
01 is attached to a receiving member 107 provided therein. Next, the operation will be described. When the rotating body 102 is brought into contact with the application surface, the rotating body 102 is pressed, and the pressing operation causes the valve rod 106 to retreat and the valve mechanism to be released. Then, by releasing the valve mechanism, the liquid in the liquid storage chamber 101 is supplied to the rotating body 102.

[0003]

However, in the prior art described above, the valve mechanism is constituted by abutting the valve portion 103 and the valve seat portion 104 in a conical shape. For this reason, the valve rod 106 may advance more than the set value due to the resilience of the resilient member 105 and the dimensional variation of each component constituting the valve mechanism. 102 is a tip opening 1 of the liquid storage chamber 101
08 was pressed unnecessarily, and the surface of an important rotating body which becomes an application portion was scratched, or the rotation was poor, so that application could not be performed. In addition, if the elasticity of the elastic member 105 is set to be high, the sealing performance of the valve mechanism is improved, but the biting force between the valve portion 103 and the valve seat portion 104 is also increased. In addition, the rotating body 102 must be pressed against the application surface more than necessary, which may cause breakage. Therefore, it is difficult to select the elastic member 105.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a rotating body protrudingly held at a tip of a liquid storage chamber, and a liquid is applied by the rotating body. An applicator, wherein a gap is formed in a holding portion of the rotating body, and a valve mechanism is disposed between the rotating body and the liquid storage chamber, and the valve mechanism is disposed vertically between the valve body and the valve seat member. The first gist is to make what has been done by the contact in the direction, and to hold the rotating body at the tip of the liquid storage chamber in a state where it is projected,
An applicator for applying a liquid by the rotating body, wherein a gap is formed in a holding portion of the rotating body, the holding portion is disposed so as to be able to move back and forth, and between the rotating body and the liquid storage chamber. A second gist is that a valve mechanism is arranged in the rotator, and the valve mechanism is constituted by a valve body provided in the holding portion of the rotating body and a valve seat member provided in the liquid storage chamber.

[0005]

When the valve body abuts vertically on the valve seat member, the valve mechanism is closed and the movement of the valve body is prevented.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first example will be described with reference to FIGS. A resin tip member 2 molded by injection molding or the like is detachably fixed to a front end of a liquid storage chamber 1 for accommodating a liquid molded by blow molding or the like by means of a screwing or the like. A tapered portion 3 is formed in front of the tip member 2, and a rotating body 4 is disposed at a tip of the tapered portion 3. When the applicator is used for a writing instrument such as a ball-point pen, the material of the rotating body 4 is preferably a metal material such as stainless steel or cemented carbide, ceramics, ruby, diamond, or the like. When used as a seasoning container, a resin material such as polypropylene, polyethylene, or polyoxymethylene is preferable.

A valve stem 6 urged forward by a resilient member 5 such as a coil spring is provided behind the rotating body 4.
Is located in the middle of the valve stem 6 and the valve stem 9
A flange-shaped valve portion 7 having a surface in a direction perpendicular to the moving direction of the valve is formed. A circumferential projection 8 is formed on the upper end surface of the valve portion 7 to enhance liquid tightness, and the projection 8 is substantially formed on the inner surface of the tip member 2. 9 abuts. The valve seat 9 has a surface on which the projection 8 of the valve portion 7 abuts in a direction perpendicular to the direction in which the valve stem 6 moves. That is, the projection 8 of the valve portion 7 and the valve seat portion 9 come into contact with each other in a vertical direction.

Further, the rotating body 4 is not urged forward by the front end face of the valve stem 6, but a slight gap 10 is formed between the rotating body 4 and the front end face of the valve stem 6. As shown in FIG. 3, the position of the valve rod 6 is regulated, and the position is regulated by the valve mechanism.
When the rotating body 4 retreats due to its own weight or the like, the rotating body 4 and the distal end of the valve stem 6 abut, of course, but a gap is formed between the inner surface of the distal end of the tip member 2 and the rotating body 4. . That is, the rotating body 4 is held in a loosely inserted state inside the distal end of the tip member 2, and can be rotated very easily.

A flow rate adjusting member 11 is provided in the vicinity of a connection portion between the liquid storage chamber 1 and the tip member 2, and a through hole 12 formed in the flow rate adjusting member 11 is provided with the valve rod 6. The rear part is loosely inserted. The flow rate is adjusted depending on the relationship between the size of the through hole 12 and the thickness of the rear portion of the valve stem 6. In order to easily discharge the liquid when a large amount of liquid is to be discharged or the viscosity of the liquid to be used is high. And the through hole 12
And the valve stem 6 is thinned to increase the space ratio. Note that the flow rate adjusting member 11 also serves to fix the rear end of the elastic member 5. Symbol X represents a cap, which is composed of an outer cylinder and an inner cylinder.

Next, an example of use will be described. When the rotating body 4 is brought into contact with the application surface and slightly pressed, the valve rod 6 is pressed, and the valve portion 8 is separated from the valve seat portion 9. The liquid in the liquid storage chamber 1 is supplied to the rotating body 4 by releasing the valve mechanism. Here, the application may be continued in this state. Alternatively, the pressing force on the application surface may be weakened, and the application may be continued by using a liquid positioned forward of the valve mechanism. Since the application can be performed without applying a pressing force to the application surface, it is particularly effective for a soft application surface, for example, a makeup tool to be applied to the skin.

A second example will be described with reference to FIGS. This is an example in which a pipe member 13 made of stainless steel or the like is fixed to the tip of the tapered portion 3 of the tip member 2, and the rotating body 4 is loosely inserted into the pipe member 13. The tip of the pipe member 13 is caulked inward, so that the rotating body 4 is prevented from falling off.
Because of the metal material, it can be formed thin. And, of course, also in the second example, a gap 10 is provided between the rotating body 4 and the tip (holding portion) of the valve rod 6. Since the tip is formed thinner than that of the first example, the rotating body 4 is easy to visually recognize, and is particularly effective for a writing instrument such as a ballpoint pen. Reference numeral Y denotes a cap, to which the clip Z is integrally attached.

A third example will be described with reference to FIGS. 6 and 7. FIG. On the tapered portion 3 of the tip member 2, a cylindrical holding member 14 into which the rotating body 4 is loosely inserted is slidably disposed. The holding member 14
An elastic annular body 15 such as an O-ring is fixed to an intermediate portion of the first member 2 in order to increase liquid tightness with the inner surface of the tip member 2. A plurality of vertical grooves 16 are formed radially in the middle part of the inner surface of the holding member 14 in order to improve the supply of the liquid to the rotating body 4. Further, on the rear inner surface of the holding member 14,
A valve seat portion 17 is formed, and a valve member 18 fixed to the flow rate adjusting member 11 abuts. The holding member 14 is urged forward by a resilient member 19, and the urging force causes the valve seat 17 to abut against the valve member 18. Since the valve mechanism can be released more than in the first and second examples, it is effective for a container such as glue or mayonnaise that discharges a large amount of liquid having a high viscosity.

A fourth example will be described with reference to FIGS. This is a modification of the third example, in which the rotating body 4 is loosely inserted into a metal pipe member 20 as in the second example,
This is an example in which is fixed to the holding member 21. Further, in this example, the side surface of the pipe member 20 is caulked in three places inward in order to loosely insert the rotating body 4 into the tip of the pipe member 20 (caulking portion 22). Of course, also in this example, the holding portion is formed slightly larger than the rotating body, and has a space portion.

[0014]

According to the present invention, there is provided an applicator for holding a rotating body protruding from the tip of a liquid storage chamber and applying a liquid by the rotating body, wherein a gap is formed in a holding portion of the rotating body. The first gist is that a valve mechanism is arranged between the rotating body and the liquid storage chamber, and the valve mechanism is formed by abutting the valve body and the valve seat member in the vertical direction. An applicator that holds a rotating body in a state where it protrudes from the front end of a storage chamber, and applies a liquid using the rotating body, wherein a gap is formed in a holding section of the rotating body, and the holding section is moved back and forth. And a valve mechanism disposed between the rotating body and the liquid storage chamber, and the valve mechanism is provided with a valve body provided in the holding portion of the rotating body and a valve seat member provided in the liquid storage chamber. Because it was configured without damaging the rotating body,
Selection of a repelling member for opening and closing the valve mechanism is also easy.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a main part showing a first example of the present invention.

FIG. 2 is an enlarged longitudinal sectional view of a main part of FIG.

FIG. 3 is a further enlarged longitudinal sectional view of a main part of FIG. 1;

FIG. 4 is a longitudinal sectional view showing a second example.

FIG. 5 is an enlarged longitudinal sectional view of a main part of FIG. 4;

FIG. 6 is an enlarged longitudinal sectional view of a main part showing a third example.

FIG. 7 is a sectional view taken along line AA of FIG. 6;

FIG. 8 is an enlarged longitudinal sectional view of a main part showing a fourth example.

9 is an external perspective view of FIG.

FIG. 10 is an enlarged longitudinal sectional view of a main part showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid storage chamber 2 Tip member 3 Tapered part 4 Rotating body 5 Repelling member 6 Valve rod 7 Valve part 8 Valve seat part 9 Protrusion 10 Gap 11 Flow rate adjusting member 12 Through hole 13 Pipe member 14 Holding member 15 Elastic annular member 16 Vertical Groove 17 Valve seat 18 Valve member 19 Resilient member 20 Pipe member 21 Holding member 22 Caulking portion

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B43K 7/08 B43K 7/08 7/10 7/10 B65D 85/72 B65D 85/72 D

Claims (2)

[Claims] 1. An applicator for holding a rotating body protruding from a tip of a liquid storage chamber and applying a liquid by the rotating body, wherein a gap is formed in a holding portion of the rotating body. An applicator characterized in that a valve mechanism is arranged between a rotating body and a liquid storage chamber, and the valve mechanism is formed by abutting a valve body and a valve seat member in a vertical direction. 2. An applicator for holding a rotating body protruding from a tip end of a liquid storage chamber and applying a liquid by the rotating body, wherein a gap is formed in a holding portion of the rotating body. The holding portion is disposed so as to be able to move back and forth, and a valve mechanism is disposed between the rotating body and the liquid storage chamber, and the valve mechanism is provided between the valve body and the liquid storage chamber provided in the holding portion of the rotating body. An applicator characterized by comprising a provided valve seat member.