JP2001179139A - Fluid container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid container from which a viscous fluid such as gel and creamy matter as well as an ordinary liquid is discharged with a low power. SOLUTION: The fluid container is composed of a fluid discharge pump 1, a nozzle head 2, an outer lid 3 and a fluid storage part 4 wherein a fluid is stored. Meanwhile, the storage part 4 has a cylinder member 5 and a piston member 6 moving vertically in the cylinder member 5. Further, a spring 45 for energizing the piston member 6 toward the nozzle head 2 and a bottom lid 46 are provided below the storage part 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid container for discharging a fluid stored in a fluid storage section from a nozzle head by the action of a fluid discharge pump.

[0002]

2. Description of the Related Art As such a fluid container, a so-called airless container is used. Such a fluid container includes a fluid storage unit including a hard cylinder member and a piston member movable in the cylinder member. In this fluid container, when the fluid in the fluid reservoir is reduced by discharging the container in the fluid from the nozzle head by the action of the fluid discharge pump, the fluid is discharged by the action of the atmospheric pressure. The piston member moves in the direction of the nozzle head in accordance with the amount of decrease in the pressure.

When such a fluid container called an airless container is used, contact between the fluid and air can be prevented, and oxidation of the fluid can be prevented.

On the other hand, as a fluid discharge pump usable for such a fluid container, for example, Japanese Patent Application Laid-Open No. 10-23 / 1998
As described in Japanese Patent No. 6509, a nozzle head for discharging a fluid, a fluid storage section for storing the fluid, a cylinder disposed above the fluid storage section, and a nozzle head A piston that can reciprocate in the cylinder by pressing the piston, a spring that urges the piston upward, and the fluid stored in the fluid storage section flows into the cylinder as the piston rises. And a fluid valve mechanism for causing the fluid flowing into the cylinder to flow out to the nozzle head as the piston descends.

Further, in such an inflow valve mechanism and an outflow valve mechanism of a fluid discharge pump, since the flow of the fluid can be closed with a simple structure, a spherical valve body also called a ball valve and a spherical valve body are used. A valve mechanism using a valve seat that comes into contact with a valve body is employed.

[0006]

When a highly viscous fluid is discharged by using such a fluid discharge pump, the fluid is pumped so that the fluid can flow into the cylinder via an inflow valve mechanism. The piston must be raised with enough force to overcome the body's inflow resistance. For this reason, a spring having a sufficient urging force must be used as a spring for urging the piston upward.

However, when a spring having a large urging force is used as a spring for urging the piston upward, it is necessary to lower the piston to discharge the fluid flowing into the cylinder from the nozzle head. Requires the piston to be pressed with an extremely large force.

That is, even if an attempt is made to apply the fluid container having the above-described fluid discharge pump to a gel generally called a gel, such as a hair gel or a cleansing gel used in the field of beauty. There is a problem that an extremely large force is required to effectively discharge the gel. Such a problem is a problem that occurs not only in the case of applying a cream-like substance such as a nutritional cream or a massage cream, but also in the case of applying a gel-like substance.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is a fluid container capable of discharging not only ordinary liquids but also highly viscous fluids such as gels and creams with a light force. The purpose is to provide.

According to a first aspect of the present invention, there is provided a fluid storage portion including a hard cylinder member, a piston member moving in the cylinder member, and a fluid storage portion disposed above the fluid storage portion. A nozzle head having a discharge section for discharging a body, a cylinder disposed in the fluid storage section, a piston reciprocally movable in the cylinder, and a bias for biasing the piston upward. Means, an inflow valve mechanism for causing the fluid stored in the fluid storage portion to flow into the cylinder with the ascending operation of the piston, and a descending operation of the piston for flowing the fluid flowing into the cylinder. A fluid discharge pump having an outflow valve mechanism for causing the nozzle head to flow out to a discharge portion of the nozzle head. Characterized by being arranged piston member biasing means for biasing direction.

According to a second aspect of the present invention, in the first aspect of the present invention, the outflow valve mechanism of the fluid discharge pump has a valve seat connected to the piston, and can contact the valve seat. A spherical valve element, a spring for urging the valve element in a direction in which it comes into contact with the valve seat, and pressing to separate the valve element from the valve seat by pressing the valve element when the cylinder is lowered. Means.

According to a third aspect of the present invention, in the first aspect of the present invention, the outflow valve mechanism of the fluid discharge pump includes a cylindrical body that reciprocates in the cylinder in synchronization with the piston. A first valve body having a spherical shape and being able to abut from below on a valve seat formed in an upper portion of the cylindrical body in the cylindrical body, and a first valve body having a spherical shape; , A second valve body capable of abutting from above on a valve seat formed at a lower portion of the cylindrical body, and urging the first valve body and the second valve body in a direction of separating from each other. Pressing means attached to a connecting cylinder of the nozzle head, which separates the first valve element from the valve seat by pressing the first valve element during the lowering operation of the cylinder. It has.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the inflow valve mechanism of the fluid discharge pump includes a valve seat formed below the cylinder, A spherical valve element capable of contacting the valve seat,
A spring for urging the valve body toward the valve seat.

According to a fifth aspect of the present invention, in the first aspect, a gel or a cream is used as the fluid.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic longitudinal sectional view of a fluid container according to the present invention.

This fluid container is used as a container for a gel generally used as a gel, such as a hair gel or a cleansing gel, or a cream-like material such as a nourishing cream or a massage cream used in the field of beauty. What is used. In this specification,
The term “fluid” includes ordinary liquids, high-viscosity liquids, semi-fluids, and gels or creams in which a sol is solidified in a jelly state.

The fluid container comprises a fluid discharge pump 1
, A nozzle head 2, an outer lid 3, and a fluid storage unit 4 for storing a fluid therein.

Here, the nozzle head 2 has a discharge portion 41 for discharging a fluid, a pressing portion 42 pressed when discharging the fluid, and a pressing portion 41 connected to the pressing portion 42 and receiving a pressing force. And a hollow connecting cylinder 43 for lowering the piston 12 by transmitting the pressing force to the piston 12 described later.

The fluid storage section 4 has a cylindrical cylinder member 5 and a piston member 6 which moves vertically within the cylinder member 5. Then, below the fluid storage unit 4, the piston member 6 is attached to the nozzle head 2.
A spring 45 biasing in the direction and a bottom cover 46 are provided. The spring 45 functions as a piston member urging means according to the present invention.

The fluid discharge pump 1 and the fluid reservoir 4 are connected via a packing 44 in a liquid-tight manner.

In this fluid container, the pressing portion 42 of the nozzle head 2 is pressed and reciprocated in the up and down direction, so that the fluid discharge pump 1 described later in detail allows the inside of the fluid storing portion 4 to be operated. The fluid stored in the nozzle head 2 is discharged from the discharge unit 41 of the nozzle head 2. As the fluid in the fluid storage unit 4 decreases, as shown in FIG.
Due to the urging force of 5, the cylinder member 5 moves in the nozzle head 2 direction.

In this specification, the vertical direction in FIGS. 1 and 2 is defined as the vertical direction in the fluid container. That is, in the fluid container according to this embodiment, the nozzle head 2 side shown in FIG.
Let the piston member 6 side be the downward direction.

Next, the configuration of the fluid discharge pump 1 will be described. 3 and 4 are longitudinal sectional views of the fluid discharge pump 1. FIG. FIG. 3 shows a state in which the connecting tube 43 is being lowered by pressing the pressing portion 42 of the nozzle head 2, and FIG. 4 shows a state in which the nozzle head 2 is opened when the nozzle head 2 is opened. The state where the cylinder 43 is rising is shown.

The fluid discharge pump 1 includes a cylinder 11
And a piston 12 that can reciprocate in the cylinder 11
And a cylindrical body 13 attached to the piston 12 as a part thereof and reciprocating in the cylinder 11 in synchronization with the piston 12.

A spring 15 is provided between the support member 14 provided below the cylinder 11 and the lower surface of the piston 12. Therefore, when the pressing portion 42 of the nozzle head 2 shown in FIG.
3 and transmitted to the piston 12 via the cylindrical body 13,
The piston 12 descends in the cylinder 11 against the urging force of the spring 15. On the other hand, when the pressing force on the nozzle head 2 shown in FIG. 1 is released, the piston 12 moves up in the cylinder 11 by the action of the spring 15.

Below the cylinder 11, a valve body 21 made of a resin ball is disposed. A spring 22 is provided between the valve body 21 and the support member 14. The valve body 21 is urged toward the valve seat constituted by the opening 16 formed at the lower end of the cylinder 11 by the action of the spring 22.

The valve body 21, the spring 22, and the opening 1
6 constitutes an inflow valve mechanism.

The tubular body 13 includes a flange 23, a cylindrical portion 24, a tapered portion 25, and a cylindrical portion 26. A pair of valve bodies 31 and 32 made of resin spheres and a spring 33 for urging the valve bodies 31 and 32 in a direction away from each other are arranged inside the cylindrical body 13. .

The valve body 31 comes into contact with the valve seat formed by the tapered portion 25 of the tubular body 13 from above by the action of the spring 33. The valve body 32 abuts from below on a valve seat formed by an opening formed in the center of the flange portion 23 of the tubular body 13 by the action of the spring 33.

A valve seat constituted by these valve bodies 31, 32, a spring 33, a tapered portion 25 of the tubular body 13, and a valve seat constituted by an opening formed in the center of the flange 23 of the tubular body 13 are provided. , Constituting an outflow valve mechanism. Also, in particular,
The valve seat constituted by the valve body 31 and the tapered portion 25 of the cylindrical body 13 constitutes an inflow valve, and the valve body 32 and the cylindrical body 13
A valve seat formed by an opening formed at the center of the flange portion 23 constitutes a check valve.

The above-mentioned springs 15, 22, 33 are
As with the valve bodies 21, 31, and 32, resinous ones are used. These springs 15, 22, 33 and valve bodies 21, 3
The reason why a resin-made material is used as 1 and 32 is to prevent corrosion due to the fluid and to prevent an adverse effect on the environment when the fluid discharge pump 1 is discarded.

The lower end of the connecting cylinder 43 is constituted by an opening formed in the center of the flange 23 of the cylindrical body 13 by pressing the valve 32 during the downward movement of the piston 12. A plurality of projections 17 functioning as a pressing means for separating from the valve seat are formed.

The lower end of the connecting cylinder 43 and the piston 12
A packing 51 for preventing liquid leakage of a fluid from a space formed by the inside of the connecting cylinder 43 and the inside of the cylinder 11 is provided between the upper end of the tubular body 13 and a part of the cylinder 13. It is arranged.

As shown in a perspective view of FIG. 5, the packing 51 is made of a synthetic rubber having an outer diameter substantially in the shape of a truncated cone.

Next, the operation of discharging a fluid by the fluid discharge container provided with the above-described fluid discharge pump 1 will be described.

In the initial state, as shown in FIG.
The valve body 21 is a valve seat formed by the opening 16 formed at the lower end of the cylinder 11, the valve body 31 is a valve seat formed by the tapered portion 25 of the cylindrical body 13, and the valve body 32 is a cylindrical shape. The valve 13 is in contact with a valve seat formed by an opening formed in the center of the flange portion 23 of the body 13. Further, the cylinder 11 is filled with a fluid.

In this state, when the pressing portion 42 of the nozzle head 2 is pressed, as shown in FIG.
The connecting cylinder 43 descends, and the plurality of protrusions 17 formed at the lower end thereof press the valve body 32. Thereby, the valve element 32
Is separated from a valve seat formed by an opening formed in the center of the flange portion 23 of the tubular body 13 against the urging force of the spring 33.

The pressing force applied to the nozzle head 2 is applied to the piston 12 via the connecting cylinder 43 and the cylindrical body 13.
Is transmitted to Thereby, the piston 12 becomes the cylindrical body 13
At the same time, it descends in the cylinder 11. This piston 12
Is lowered, the valve element 31 is pressed by the pressure of the fluid filling the cylinder 11. Therefore, as shown in FIG. 3, the valve element 31 separates from the valve seat formed by the tapered portion 25 of the cylindrical body 13 against the urging force of the spring 33 and flows into the cylindrical body 13. The body flows in.

The fluid flowing into the cylindrical body 13 flows out of the connecting cylinder 43 through an opening formed at the center of the flange 23 of the cylindrical body 13 and is discharged from the discharge part 41 of the nozzle head 2. .

At this time, as described later, a spring 15 having a relatively small urging force can be used, so that there is no need to press the nozzle head 2 with a large force.

When the pressing force applied to the nozzle head 2 is released after the piston 12 has moved down to the lower end of the stroke, as shown in FIG. The protrusion 17 formed at the lower end is pushed up. As a result, the valve body 32 comes into contact with a valve seat formed by an opening formed at the center of the flange portion 23 of the tubular body 13.

The action of the spring 15 causes the piston 1
2 rises in the cylinder 11 together with the tubular body 13.
Due to the pressure-reducing action in the cylinder 11 caused by the rise of the piston 12, the valve body 21 is pressed by the fluid stored in the fluid storage unit 4 shown in FIG. Therefore, as shown in FIG. 4, the valve body 21 is separated from the valve seat formed by the opening 16 formed at the lower end of the cylinder 11 against the urging force of the spring 22 and flows into the cylinder 11. The fluid flows in from the body storage unit 4.

At this time, as shown in FIG. 1, a spring 45 for urging the piston member 6 in the direction of the nozzle head 2 is provided below the fluid storage section 4. The fluid is pressurized by the action of the spring 45.
Therefore, even when a spring having a relatively small biasing force is used as the spring 15, the fluid in the fluid storage unit 4 can easily flow into the cylinder 11.

On the other hand, as shown in FIG.
Is in contact with the valve seat. Therefore, the fluid in the cylindrical body 13 and the connecting cylinder 43 is not sucked into the cylinder 11 side.

Here, the valve element 31 is forcibly brought into contact with the valve seat formed by the tapered portion 25 of the cylindrical body 13 by the action of the spring 33. Therefore, even when a high-clay liquid or gel is used as the fluid, the valve body 31 and the valve seat formed by the tapered portion 25 of the tubular body 13 can be reliably brought into contact with each other, It is possible to effectively prevent the fluid in the cylindrical body 13 and the connecting cylinder 43 from being sucked into the cylinder 11 side.

When the piston 12 moves to the upper end of the stroke, the valve element 21
Abuts with a valve seat constituted by an opening 16 formed at the lower end of the first valve 1. In this state, as shown in FIG. 1, the valve element 31 is formed at a valve seat constituted by the tapered portion 25 of the cylindrical body 13, and the valve element 32 is formed at the center of the flange 23 of the cylindrical body 13. In this state, each of the valve seats has an initial state in which it comes into contact with the corresponding valve seat, and the cylinder 11 is filled with the fluid.

Here, the valve element 21 is forcibly brought into contact with a valve seat constituted by the opening 16 formed at the lower end of the cylinder 11 by the action of the spring 22. For this reason,
Even when a high-clay liquid or gel is used as the fluid, the valve body 21 and the valve seat formed by the opening 16 formed at the lower end of the cylinder 11 can be reliably brought into contact with each other. It is possible to effectively prevent the fluid in 11 from flowing out into fluid reservoir 4 through opening 16.

As described above, in the initial state shown in FIG. 1, the valve body 21 is in the valve seat constituted by the opening 16 formed in the lower end of the cylinder 11, and the valve body 31 is in the cylindrical body 13
And the valve element 3
Numerals 2 are in contact with valve seats each formed by an opening formed at the center of the flange portion 23 of the tubular body 13.

For this reason, in this initial state, the cylinder member 5 in the fluid storage section 4 is pressed upward by the urging force of the spring 45 to apply pressure to the fluid stored in the fluid storage section 4. Also, since the valve body 32 is in contact with the valve seat formed by the opening formed at the center of the flange portion 23 of the cylindrical body 13, the fluid is reliably prevented from being discharged from the nozzle head 2. It is possible to do.

Also, if the cylinder member 5 in the fluid storage unit 4 is pressed upward in a state where the nozzle head 2 is pushed, and pressure is applied to the fluid stored in the fluid storage unit 4 In this case, the valve body 21 is provided on the valve seat formed by the opening 16 formed at the lower end of the cylinder 11 by the action of the spring 22, and the valve body 31 is provided by the tapered portion 25 of the cylindrical body 13 by the action of the spring 33. The fluid in the fluid storage unit 4 cannot easily reach the nozzle head 2 because the fluids are forcibly brought into contact with the configured valve seats. It is possible to effectively prevent further ejection.

Further, in the fluid discharge pump 1 described above, a space defined by the inside of the connecting tube 43 and the inside of the cylinder 11 is provided between the lower end of the connecting tube 43 and the upper end of the cylindrical body 13. Since the packing 51 for preventing the liquid from leaking from the fluid is provided, for example, FIG.
Even when the lower end of the connecting cylinder 43 is separated from the upper end of the tubular body 13 as shown in FIG.
Can be prevented from flowing out of the gap between the lower end of the cylindrical body 13 and the upper end of the tubular body 13.

For this reason, from the time when the plurality of projections 17 press the valve body 32 due to the lowering of the connecting cylinder 43, the time from when the lower end of the connecting cylinder 43 comes into contact with the upper surface of the flange portion 23 of the cylindrical body 13. Liquid can be effectively prevented from occurring.

Further, since the packing 51 is configured to prevent the fluid from flowing out without performing a sliding operation with respect to other members, the effect of preventing liquid leakage due to fatigue and wear of the packing is not reduced. Absent.

In the above-described embodiment, the present invention is applied to a gel generally called a gel such as a hair gel or a cleansing gel used in the field of beauty.
Although the description has been given of the case where the present invention is applied to a fluid container for l), the present invention can also be applied to a creamy substance such as a nourishing cream, a massage cream, a toothpaste or a shoe cream, and further to a container of another fluid. is there.

[0055]

According to the first aspect of the present invention, since the piston member urging means for urging the piston member moving in the cylinder member toward the nozzle head is provided, the piston in the fluid discharge pump is provided. The fluid can be easily flowed into the cylinder of the fluid discharge pump even when a small urging force is used as the urging means for urging the fluid upward. For this reason, it is possible to discharge the fluid with a small force.

According to the second aspect of the present invention, the outflow valve mechanism in the fluid discharge pump includes a valve seat connected to a piston, a spherical valve body capable of contacting the valve seat, and a valve body. A spring that urges the valve body in the direction of contact with the valve seat, and pressing means that separates the valve body from the valve seat by pressing the valve body during the lowering operation of the cylinder. Even in a state where the pressure by the urging means is applied to the applied fluid, it is possible to effectively prevent the outflow of the fluid.

According to the third aspect of the present invention, the inside of the liquid storage section is formed by the action of the first valve body which can abut from below on the valve seat formed in the upper part of the cylindrical body in the cylindrical body. It is possible to effectively prevent the liquid flowing into the cylinder from flowing out of the nozzle head even when the pressure stored by the urging means is applied to the liquid stored in the nozzle. In addition, due to the action of the second valve body, which can abut from above on a valve seat formed in the lower part of the cylindrical body in the cylindrical body, the liquid is stored in the liquid storing part in a state where the nozzle head is pressed. Even when the pressure is applied to the liquid by the urging means, it is possible to effectively prevent the phenomenon that the liquid flowing into the cylinder easily flows out of the nozzle head.

According to the fourth aspect of the present invention, a valve seat formed below the cylinder, a spherical valve element capable of contacting the valve seat, and a spring for urging the valve element toward the valve seat. By the action of the inflow valve mechanism having the above, when the pressure stored by the urging means is applied to the liquid stored in the liquid storage portion in a state where the nozzle head is pressed, the liquid flowing into the cylinder can be easily discharged to the nozzle. The phenomenon of flowing out of the head can be more effectively prevented.

According to the fifth aspect of the present invention, even when a gel or a cream is used, the gel or the cream can be discharged with a light force.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view of a fluid container according to the present invention.

FIG. 2 is a schematic longitudinal sectional view of a fluid container according to the present invention.

FIG. 3 is a longitudinal sectional view of the fluid discharge pump 1.

FIG. 4 is a longitudinal sectional view of the fluid discharge pump 1.

5 is a perspective view of the packing 51. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fluid discharge pump 2 Nozzle head 3 Outer lid 4 Fluid storage part 5 Cylinder member 6 Piston member 8 Fluid storage part 9 Fluid discharge pump 11 Cylinder 12 Piston 13 Cylindrical body 14 Support member 15 Spring 17 Projection 21 Valve Body 22 Spring 31 Valve body 32 Valve body 33 Spring 41 Discharge part 42 Pressing part 43 Connecting cylinder 45 Spring 46 Bottom lid 51 Packing

Claims (5)

[Claims] 1. A fluid storage portion comprising a hard cylinder member, a piston member moving in the cylinder member, and a discharge for discharging the fluid, which is disposed above the fluid storage portion. A nozzle head having a portion, a cylinder disposed in the fluid storage portion, a piston reciprocally movable in the cylinder, biasing means for biasing the piston upward, and the fluid storage portion. An inflow valve mechanism for causing the fluid stored in the portion to flow into the cylinder along with the upward movement of the piston; and an inflow valve mechanism for flowing the fluid flowing into the cylinder along with the downward movement of the piston. A fluid discharge pump having an outflow valve mechanism for causing the fluid to flow out to a discharge portion, wherein: a piston that biases the piston member toward the nozzle head. Fluid container, characterized in that disposed member biasing means. 2. The fluid container according to claim 1, wherein the outflow valve mechanism of the fluid discharge pump comprises: a valve seat connected to the piston; and a spherical valve body capable of contacting the valve seat. A spring for urging the valve body in a direction in which the valve body comes into contact with the valve seat; and pressing means for separating the valve body from the valve seat by pressing the valve body during the lowering operation of the cylinder. Fluid container. 3. The fluid container according to claim 1, wherein the outflow valve mechanism in the fluid discharge pump has a cylindrical body that reciprocates in the cylinder in synchronization with the piston, and has a spherical shape. A first valve body which can abut from below on a valve seat formed at an upper portion of the tubular body in the tubular body; and a first valve body having a spherical shape, and the tubular body in the tubular body. A second valve body capable of abutting from above on a valve seat formed at a lower part of the first valve body; a spring for urging the first valve body and the second valve body in a direction away from each other; Pressing means attached to a connecting cylinder in the nozzle head, which presses the first valve element at the time of lowering the cylinder, thereby separating the first valve element from the valve seat. container. 4. The fluid discharge pump according to claim 1, wherein the inflow valve mechanism of the fluid discharge pump includes: a valve seat formed below the cylinder; A fluid discharge pump comprising: a contactable spherical valve element; and a spring for urging the valve element toward the valve seat. 5. The fluid discharge pump according to claim 1, wherein the fluid is a gel or a cream.