JPH0724806B2 - Applicator with valve - Google Patents

Description

TECHNICAL FIELD The present invention relates to a valved applicator that can be applied to various liquids.

(Prior Art and its Problems) Conventionally, a valve having a conical outer surface is axially biased in a valve hole having a circular cross section provided in an opening of a liquid storage chamber in order to block communication between the liquid storage chamber and the outside air. In a so-called valve-applied applicator which is pressed and brought into close contact with each other, every time the stored liquid is led to the applicator in front of the applicator, the valve is moved in either axial direction to release the press contact between the valve and the valve hole. A gap for liquid circulation is formed between the valve hole and the valve hole. As the moving means of the valve described above, a pen body as an application portion is movably arranged in front of the valve, and a portion of the application portion protruding from the applicator is pressed inward by pressing the application surface. An inward displacement of a pair of flexible operation pieces in which the valve is retracted integrally with the coating part, and a sliding body having a tapered surface continuous to the rear of the valve is arranged in the liquid storage chamber. It is known that it slides and retreats while moving (Act No. 55-32784).

However, in the conventional applicator with a valve described above, in order to move the valve in the axial direction to form a gap for liquid circulation between the valve and the valve hole, in the case of the former, the movable applicator portion is not provided. In addition to being absolutely necessary, it is necessary to provide the pen body with a pressing strength that resists repeated pressing, so there is the problem that soft materials such as brushes and sponges, nozzles, etc. cannot be used as the application part. In the latter case, however, since a complicated valve opening mechanism such as a flexible operation piece and a sliding body having a tapered surface is required, there is a drawback that the number of parts is large and it cannot be manufactured at low cost.

(Object of the Invention) The present invention has been made in view of the above-mentioned conventional problems,
It is an object of the present invention to provide a novel applicator with a valve that can employ various types of applicator parts and that does not require a complicated valve opening mechanism.

(Summary of the Invention) According to the present invention, a valve hole is provided in an opening of a liquid storage chamber having a flexible portion on at least a part of a side surface thereof, and a valve biased in an axial direction by an elastic member is pressed against the valve hole. An applicator with a valve, in which an eccentric part connected to the valve faces an inner surface of a flexible part of the storage chamber, and an applicator is provided in front of the valve hole, is provided. It is a thing.

(Examples of the Invention) The present invention will be described in detail below based on examples.

In FIGS. 1 and 2, reference numeral 1 denotes an accommodation chamber obtained as a molded product of a resin material, and the accommodation chamber 1 has flexibility on its side surface that can be deformed by pressing with a fingertip. Further, in the accommodating chamber 1, various viscosifying or non-volatile liquids for writing, makeup or drawing are stored. Reference numeral 2 denotes a chip fixed to the front part of the accommodation chamber 1, the chip 2 has a through hole 3 therein, and a coating part 4 is provided at the front part of the through hole 3. In the illustrated example, a screw is used as a means for fixing the chip 2 to the accommodation chamber 1, but
Needless to say, the fixing of the both is not limited to screwing, and press fitting, caulking, or the like may be used, and the application section 4 is a brush, but the application section 4 is not limited to a brush. Instead, a fiber bundle, a sponge, or a nozzle-like one using the end portion of the through hole 3 as it is may be adopted. 5 is the accommodation chamber 1
It is a cylindrical body with a collar 6 fixed between the chip and the chip 2,
The cylindrical body 5 has a valve hole 7 having a circular cross section, which communicates with the through hole 3. Reference numeral 8 is a valve having a conical outer surface 9, and the valve 8 is an elastic member 11 such as a coil spring stretched between a flange 10 formed on the inner surface of the rear end of the tubular body 5 and axially (forward). The conical outer surface 9 is pressed against the end edge of the valve hole 9 under pressure. Further, an eccentric portion 12 which is eccentric with respect to the axis of the valve 8 is connected to the rear portion of the valve 8, and the eccentric portion 12 faces the inner side surface of the accommodation chamber 1 with a slight gap.

Next, the valve opening operation in the above-mentioned embodiment will be described with reference to FIGS. 3 to 6.

The valve 8 maintains the horizontal state in the illustrated example by the elastic force of the elastic member 11 in the normal state as shown in FIG.
As shown in FIG. 5 and FIG. 5, the conical outer surface 9 is brought into pressure contact with the edge of the valve hole 7 so as to be in close contact therewith to block the communication between the storage chamber 1 and the outside air. In this state, when the side surface of the storage chamber 1 facing the eccentric portion 12 of the valve 8 is pressed inward, the side surface of the storage chamber 1 is deformed inward by its flexibility, and thus the eccentric portion 12 is moved inward. Press on. When the eccentric portion 12 receives a pressing force, the valve 8 tilts against the elastic force of the elastic member 11 as shown in FIG. 4, so that the outer surface 9 of the cone and the edge of the valve hole 7 are pressed against each other. The state changes. That is, when the valve 8 is tilted, the cross-sectional shape of the pressure contact portion is an ellipse having a major axis that matches the diameter of the valve hole 7, and therefore there is no tilt between the conical outer surface 9 corresponding to the minor diameter portion and the valve hole 7. Gap in proportion to the angle
12 will occur. Therefore, by forming the gap 12,
The storage chamber 1 and the coating unit 4 communicate with each other, and the stored liquid is led to the coating unit 4. In this embodiment, since the storage chamber 1 itself is pressed and deformed inward as the gap 12 is formed as described above, the liquid can be quickly discharged by utilizing the pressurization of the stored liquid.

In the embodiment described above, the accommodation chamber 1 is shown to have flexibility on the entire side surface, but the flexible portion provided in the accommodation chamber 1 is at least the eccentric portion 12 of the valve 8 as shown in FIG. It is useful if it is formed only in the part facing. Further, the eccentric portion 12 connected to the valve 8 is not limited to the refraction plate shape shown in FIG. 2, and the valve 8 as shown in FIG.
Alternatively, the blade 12a extending in the direction orthogonal to the axis of or the bent portion 12b of the metal wire as shown in FIG. 9 may be used instead. Further, the urging direction of the valve 8 may be not only forward but also rearward as shown in FIG. 10, and therefore the transfer of the elastic member 11 does not change the gist of the present invention. Further, the valve hole 4 having the circular cross section and the valve 8 having the conical outer surface 9 exemplified in the embodiment are not limited to the above shapes, and various types can be adopted as long as a gap is generated between the two when the valve is tilted.

(Effects of the Invention) As described above, according to the present invention, the eccentric portion is pressed inwardly via the side surface of the storage chamber, and thus the valve is only tilted, so that the valve and the valve hole, which have been in close contact with each other until now, are closely attached to each other. Since the gap for fluid circulation can be formed, the contained liquid can be led out to the application part by a simple operation. Further, since a complicated valve opening mechanism is not required, the cost can be reduced, and various types of coating parts can be adopted without any problem.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a sectional view,
2 is a perspective view of the valve, FIG. 3 and FIG. 4 are enlarged sectional views of an essential part for explaining the operation, FIG. 5 is a sectional view taken along the line AA of FIG. 3, and FIG.
FIG. 7 is a sectional view taken along the line BB in FIG. 4, FIG. 7 is a sectional view of a main part showing another example, and FIGS. 8 and 9 are perspective views showing another example of the valve.
FIG. 10 is a sectional view showing another example. 1 ... Accommodation chamber, 4 ... Coating part, 7 ... Valve hole, 8 ... Valve, 9 ... Conical outer surface, 11 ... Elastic repellent member, 12 ... Eccentric part.

Claims (1)

[Claims] 1. A valve hole is provided in an opening of a liquid storage chamber having a flexible portion on at least a part of a side surface thereof, and a valve urged axially by an elastic member is pressed into the valve hole. An applicator with a valve, in which an eccentric part continuously provided to the storage chamber is opposed to an inner surface of a flexible part of the storage chamber, and an application part is provided in front of the valve hole.