JPH10305881A - Solution discharge mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably discharge the solution irrespective of the posture of a container or the residual quantity of the solution by providing a float to be connected to the other end side of a flexible tube to be connected to a valve and a weight to regulate the posture of the float so that a suction port is in the solution in the condition where the float is afloat on the surface. SOLUTION: A float 4 is provided with a weight 5 on the side opposite to the side connected to the other end side of a tube 3 in a condition where most of the weight is embedded in the float 4. In a condition where the float 4 is afloat, the posture of the float 4 is regulated so that a suction port 11 of the solution is in the solution. The suction port 11 of the solution is formed around the weight 5 embedded in the float 4, and the suction port 11 is connected to a valve 2 through a through hole in the float 4 and a guide passage in a tube 3. The suction port is displaced together with the float 4. The solution can surely be sucked from the suction port 11 irrespective of the posture of an aerosol container 1 and the quantity of the solution.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage mechanism for, for example, an aerosol container.

[0002]

An aerosol container filled with a liquid agent of a type which is directly sprayed on the ground is used in an inclined state, a lying state, or an inverted state. For this reason, as the drainage mechanism, one configured to be able to discharge the liquid agent regardless of the posture of the aerosol container is used. A representative example is the actual fairness 6
A liquid discharging mechanism provided in a liquid ejection container disclosed in Japanese Patent No. 15855 is cited.

[0003] This drainage mechanism is constructed by attaching a weight to a lower end side of a tube made of a resin material having a high flexibility in a state of being housed in a hemispherical cap. When the aerosol container in which it is incorporated is tilted, the weight shifts to a lower position due to gravity, that is, the direction in which the liquid material flows. Therefore, the suction port of the tube is present in the liquid regardless of the attitude of the aerosol container.

However, even with such a drainage mechanism, the liquid agent may not be discharged depending on the situation. This is caused by the following phenomena. In other words, when the aerosol container is tilted from the upright state, it passes the horizontal position and at a certain critical angle, the downward force along the inner surface of the container caused by gravity acting on the weight causes the frictional force acting on the weight. And the weight begins to move. However, when the remaining amount of the liquid agent decreases, the liquid agent does not exist around the suction port before the inclination angle of the aerosol container reaches the critical angle, and it becomes impossible to discharge the liquid agent.

[0005] Therefore, an object of the present invention is to provide a drainage mechanism capable of stably discharging liquid regardless of the attitude of the container and the remaining amount of liquid.

[0006]

An object of the present invention is to provide a drainage mechanism provided in a container containing a liquid, wherein the valve controls a discharge amount of the liquid, and one end is connected to the valve.
A flexible tube, a floating body connected to the other end of the tube, a liquid suction port which is displaced together with the floating body and leads to the valve via a guide path in the tube, and the floating body In the state where the liquid floats on the liquid surface, the suction mechanism is provided with a weight for regulating the posture of the floating body so that the suction port exists in the liquid.

In particular, there is provided a drainage mechanism provided in a container storing the liquid, a pressurizing means for applying pressure to the liquid in the container, a nozzle for discharging the liquid, and a nozzle connected to the nozzle for discharging the liquid. A valve for controlling the amount, a flexible tube having one end connected to the valve, a floating body connected to the other end of the tube, and a guide that moves together with the floating body and guides through the tube. A suction port for the liquid connected to the valve via a path, and a weight that regulates the attitude of the floating body so that the suction port is present in the liquid when the floating body is floating on the liquid surface. The problem is solved by a drainage mechanism characterized in that:

That is, in the drainage mechanism of the present invention, the suction port of the liquid moves together with the floating body, and is always present in the liquid by the action of the weight. Therefore, regardless of the posture of the container, for example, even if the container is in a horizontal state or in an inverted state, regardless of that, the liquid can be taken in from the suction port, and the liquid can be discharged stably. Becomes In the drainage mechanism of the present invention, unlike the case where only the weight is used, there is no problem that the suction port cannot be shifted in the direction in which the liquid flows until the inclination angle of the container reaches a certain value. That is, if the container is tilted, the suction port can be shifted with the liquid in response to the inclination. Therefore, even when the remaining amount of the liquid decreases, the liquid does not exist around the suction port, and the liquid can be reliably discharged.

[0009] The drainage mechanism is formed by forming a through hole passing through the center of the floating body, and the floating body has
The through hole is connected to the other end of the tube so that the guide path in the tube is connected, and the weight is disposed on the floating body on the side opposite to the side connected to the other end of the tube. And a suction port for a liquid connected to the through hole may be formed around the weight.

[0010] Alternatively, a through-hole passing through the center of the floating body is formed in the floating body, and the floating body is connected to the other end of the tube so that the through-hole is connected to a guide path in the tube. And the weight is disposed on a side of the floating body opposite to a side connected to the other end of the tube, and a suction port for liquid connected to a through hole of the floating body penetrates the weight. The structure can be made up of one or more holes.

A shaft is provided on the floating body so as to protrude from the surface thereof, and the floating body is connected to the other end of the tube by attaching a tube to the shaft. And, on the peripheral surface of the shaft, a position where the tube is not covered with the tube is formed with a suction port for liquid connected to a guide path in the tube, and the floating body with the shaft floats on the liquid surface. In this state, a weight may be provided so that the suction port is present in the liquid. In particular, the floating body is provided with a shaft projecting from the surface thereof, and the floating body is connected to the other end side of the tube by attaching a tube to the shaft, and On the peripheral surface of the shaft, a position that is not covered by the tube is formed with a suction port for liquid connected to a guide path in the tube, and the weight is closer to the shaft than the center of the floating body. It can be a structure provided.

It is preferable that the tube in the drainage mechanism is formed in a coil shape. As a result, the contact area between the tube and the inner surface of the container becomes small, so that the tube does not stick to the inner surface of the container, and troubles caused by this do not occur. As the pressurizing means of the drainage mechanism, a gas pressurized and filled in a container can be used.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A drainage mechanism described below as a first embodiment of the present invention is provided in a container containing a liquid, and is a pressurizing means for applying pressure to the liquid in the container. And a nozzle for discharging the liquid, a valve connected to the nozzle and controlling the amount of discharged liquid, one end connected to the valve, a flexible tube, and connected to the other end of the tube. The floating body, the suction port of the liquid that is displaced with the floating body and connected to the valve via the guide path in the tube, and the suction port is present in the liquid when the floating body is floating on the liquid surface. And a weight for regulating the attitude of the floating body. In particular, the floating body is formed with a through-hole passing through the center thereof, and the floating body is connected to the other end of the tube so that the through-hole is connected to the guide path in the tube, and
The weight is disposed on a side of the floating body opposite to a side connected to the other end of the tube, and a suction port for liquid connected to the through hole is formed around the weight. As the pressurizing means, a gas pressurized and filled in the container is used.

Next, the first embodiment will be described in more detail with reference to FIGS. 1 is a cross-sectional view of a container (aerosol container) provided with a drainage mechanism, FIG. 2 is a cross-sectional view of a main part of the drainage mechanism, FIG. 3 is a bottom view of a main part of the drainage mechanism, and FIG.
Is a sectional view in a state where the aerosol container is further inclined from the horizontal position, and FIG. 5 is a sectional view in a state where the aerosol container is inverted.

In each of the figures, reference numeral 1 denotes an aerosol container provided with a drainage mechanism, and the inside thereof is filled with, for example, a liquid agent which is directly sprayed on the ground. Although not shown, a shoulder cover for improving the appearance is usually attached to the upper end of the aerosol container 1. As can be seen from FIG. 1, the drainage mechanism of the present embodiment mainly includes a valve 2, a tube 3, a floating body 4, and a weight 5.

The valve 2 controls the amount of liquid discharged, and is opened by depressing a nozzle (push button) 6 attached to the stem of the valve 2. As a result, an amount of the liquid agent corresponding to the opening degree and the opening time is discharged from the aerosol container 1 and discharged from the fine holes 7 of the nozzle 6. Since the valve 2 used here may be an existing one, the description of the internal structure is omitted.

The tube 3 having one end connected to the valve 2 is flexible and flexible. In the present embodiment, the tube 3 is made of polyethylene resin. The floating body 4 connected to the other end of the tube 3 is made of a material having a specific gravity smaller than 1, for example, a polystyrene resin. In the present embodiment, the floating body 4 is spherical, but the shape is not limited to this.
Oval, cylindrical, prismatic, conical, pyramidal, or even octahedral polyhedrons.

The floating body 4 is formed with a through hole 8 that passes through the center and extends along the diameter. On one opening side of the through hole 8, a projection 9 is present. The protrusion 9 has a cylindrical shape, and its internal space is continuous from the through hole 8. Therefore, when the floating body 4 is connected to the other end of the tube 3 by attaching the tube 3 to the projection 9, the through hole 8 and the guide path in the tube 3 are connected.
Since the barbs 10 are formed on the outer peripheral surface of the projection 9, the tube 3 attached to the projection 9 cannot be easily removed.

Most of the weight 5 floats on the other opening side of the through hole 8 formed in the floating body 4, that is, on the side opposite to the side of the floating body 4 connected to the other end of the tube 3. It is provided embedded in the body 4. Thus, in a state where the floating body 4 is floating on the liquid surface, the posture of the floating body 4 is regulated so that a liquid material suction port described later is always present in the liquid. In the present embodiment, the weight 5 is integrated with the floating body 4 so as to form a part of the spherical surface, but the weight 5 may be provided so as to protrude from the spherical surface.

As shown in FIG. 3, liquid material suction ports 11 are formed at 90 ° intervals around the weight 5 embedded in the floating body 4. The suction port 11 is connected to the valve 2 via the through hole 8 and a guide path in the tube 3. And it can move with the floating body 4. In the present embodiment, a groove 12 connected to the through hole 8 is formed on the surface of the concave portion for storing the weight 5 provided on the floating body 4, and when the weight 5 is stored in the concave portion of the floating body 4. The opening formed between the weight 5 and the groove 12 is a liquid material suction port 11.

The drainage mechanism includes a valve 2, a tube 3,
Floating body 4, weight 5, nozzle 6, and liquid inlet 1
1 and pressurizing means for applying pressure to the liquid agent in the aerosol container 1. Here, LP gas filled in the aerosol container 1 under pressure was used as the pressurizing means.
When the valve 2 is opened, the liquid agent in the aerosol container 1 is sent into the tube 3 from the suction port 11 by the pressure of the LP gas, and is discharged from the nozzle 6 through the opened valve 2.

In the drainage mechanism configured as described above, when the aerosol container 1 is in the upright state as shown in FIG. 1, the liquid material suction port 11 is present in the liquid by the action of the weight 5. Therefore, the liquid agent is reliably discharged from the aerosol container 1. When the aerosol container 1 is tilted from the upright state, the liquid agent flows in a lower direction. At that time, the floating body 4 floating on the liquid surface also changes in response to the movement of the liquid agent. Therefore, as shown in FIG. 4, even when the aerosol container 1 is tilted beyond the horizontal position, the suction port 11 for the liquid agent always exists in the liquid, and a problem as in the conventional mechanism using only the weight, that is, the liquid agent When the remaining amount is small, the liquid does not exist around the suction port, and the problem that the liquid cannot be discharged does not occur.

Then, even when the aerosol container 1 is further inclined from the state shown in FIG. 4 and is brought into a completely inverted state as shown in FIG. 5, in the drainage mechanism of the present embodiment, the liquid material suction port 11 is kept in the liquid. Existence is ensured and the liquid is discharged. That is, the drainage mechanism of the present embodiment can reliably suck the liquid agent from the suction port 11 regardless of the posture of the aerosol container 1 and the remaining amount of the liquid agent, and can stably discharge the liquid agent. .

Next, a second embodiment of the present invention will be described with reference to FIGS. However, since the overall configuration is the same as that of the first embodiment, the first configuration will be described below.
The description will focus on the differences from the embodiment. FIG. 6 is a sectional view of a main part of the drainage mechanism, and FIG. 7 is a bottom view of a main part of the drainage mechanism. In the drainage mechanism of the second embodiment, a through hole passing through the center of the floating body is formed, and the floating body is
The through hole is connected to the other end of the tube so that the guide path in the tube is connected, and the weight is disposed on the floating body on the side opposite to the side connected to the other end of the tube. The suction port for the liquid connected to the through hole of the floating body is formed of one or a plurality of holes penetrating the weight.

That is, the drainage mechanism of the present embodiment also
As in the embodiment, a tube 21, a floating body 22, and a weight 23 are provided. Among them, the floating body 22 has a through hole 24 passing through the center thereof, and a projection 25 to which the tube 21 is attached. Further, a concave portion for accommodating the weight 23 is formed at a position opposite to the protrusion 25. However, the concave portion is not a simple conical shape corresponding to the outer shape of the weight 23, but includes a liquid collecting space 26 connected to a through hole of the weight 23 described later.

A plurality of through holes 27 are formed in the weight 23 housed in the recess of the floating body 22. In the present embodiment, the opening of the through hole 27 directly formed in the weight 23 is used as a suction port 28 for the liquid agent connected to the through hole 24 of the floating body 22.
And Therefore, when the valve is opened, the liquid agent in the aerosol container flows from the suction port 28 to the collection space 2.
6 and further through the guiding path in the tube 21,
Discharge from nozzle.

In the drainage mechanism having such a structure, the first
As in the embodiment, regardless of the posture of the aerosol container and the remaining amount of the liquid agent, the liquid agent can be sucked from the suction port 28, and the liquid agent can be stably discharged. Next, a third embodiment of the present invention will be described with reference to FIGS. However, the basic technical idea of the drainage mechanism of the third embodiment is the same as that of the first embodiment, and therefore the following description will focus on the differences from the first embodiment. FIG. 8 is a sectional view of an aerosol container provided with a drainage mechanism, and FIG. 9 is a sectional view of a main part of the drainage mechanism.

In the drainage mechanism according to the third embodiment, a shaft is provided on the floating body so as to protrude from the surface thereof, and the floating body is formed by attaching a tube to the shaft. The other end side of the shaft, and a position on the peripheral surface of the shaft that is not covered with the tube is formed with a suction port for a liquid that is connected to a guide path in the tube, and further includes the shaft In the state where the attached floating body floats on the liquid surface, the weight is arranged so that the suction port is present in the liquid. In other words, the drainage mechanism according to the third embodiment is provided with a shaft that is provided on the floating body so as to protrude from the surface thereof, and the floating body is formed by attaching a tube to the shaft so that the tube is formed. A position that is connected to the other end side and that is not covered by the tube on the peripheral surface of the shaft body is formed with a suction port for a liquid that is connected to a guide path in the tube, and furthermore, the weight is the floating member. It is arranged at a position closer to the shaft than the center of the body.

That is, the drainage mechanism of the present embodiment also
As in the embodiment, the valve 31, the tube 32, the floating body 3
3 is provided. Although not particularly shown, a nozzle for discharging the liquid agent is attached to the stem of the valve 31. The floating body 33 has a shaft 3 so that it protrudes from its surface.
4 are provided. As shown in FIG. 9, an L-shaped guide path 35 is formed inside the shaft body 34.
Here, the opening on the shaft peripheral surface side of the guide path 35 is used as a liquid material suction port 36.

The tube 32 is attached to the lower part of the shaft 34 so as not to block the suction port 36, whereby the floating body 33 is connected to the tube 32. In addition, since the groove | channel along the circumferential direction is formed in the shaft body 34, the attached tube 32 will not come off easily. At the upper end of the shaft body 34, a weight 37 that regulates the attitude of the floating body 33 is attached so that the suction port 36 is always present in the liquid (in this state, the weight 37 is more axial than the center of the floating body 33). Located close to the body 34). The shaft body 34 is fixed to the floating body 33 by fitting the weight 37 into a recess of the floating body 33.

Even in the drainage mechanism having such a structure, when the valve 31 is opened, the liquid agent in the aerosol container is always fed into the guide path 35 from the suction port 36 existing in the liquid, and further the tube 32 It is discharged from the nozzle via the guide path inside. Therefore, regardless of the attitude of the aerosol container and the remaining amount of the liquid agent, the liquid agent can be sucked from the suction port 36, and the liquid agent can be stably discharged.

In this embodiment, only one suction port having a large opening area is provided.
A plurality of suction ports having a small opening area may be provided on the peripheral surface of the device. Next, a fourth embodiment of the present invention will be described with reference to FIG. However, also regarding the drainage mechanism of the fourth embodiment,
Since the basic structure is the same as that of the first embodiment, the following description focuses on differences from the first embodiment. Note that FIG.
FIG. 3 is a sectional view of an aerosol container provided with a drainage mechanism.

The drainage mechanism of the fourth embodiment also has a valve 41, a tube 42, a floating body 43,
A weight 44 is provided, but a coil-shaped tube 42 is used instead of a straight tube. In the present embodiment, the winding diameter of the tube 42 in the natural state is 4 to 22 m.
m. This is 1/5 to 9 / of the diameter of the aerosol container.
Equivalent to 10.

As described above, when the tube 42 has a coil shape, the area in contact with the inner surface of the aerosol container is smaller than that of the straight tube. Therefore, even if the tube 42 is made of a material having a high coefficient of friction, it does not stick to the inner surface of the aerosol container, and the trouble caused by this does not occur. In the present embodiment,
Although a tube having a uniform winding diameter was used as the tube 42, other than this, for example, a coil-shaped tube configured so that the winding diameter gradually increases toward the floating body 43 side,
Conversely, a coiled tube configured so that the winding diameter gradually increases toward the valve 41 side may be used.

In the first to fourth embodiments, the drainage mechanism of the present invention is combined with an aerosol container. However, the present invention can be applied to a manual drainage type container called a trigger type. In this case, the pump mechanism of the trigger type container plays a role corresponding to the pressurized filling gas in the aerosol container.

[0036]

The liquid can be discharged stably regardless of the posture of the container and the remaining amount of the liquid. In particular, when combined with an aerosol container, only the gas is not discharged, and the liquid can be completely used up.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an aerosol container provided with a drainage mechanism according to a first embodiment.

FIG. 2 is a sectional view of a main part of the drainage mechanism according to the first embodiment.

FIG. 3 is a bottom view of a main part of the drainage mechanism according to the first embodiment.

FIG. 4 is a cross-sectional view in a state where the aerosol container is further inclined from a horizontal position.

FIG. 5 is a cross-sectional view of the aerosol container in an inverted state.

FIG. 6 is a sectional view of a main part of a drainage mechanism according to a second embodiment.

FIG. 7 is a bottom view of a main part of a drainage mechanism according to a second embodiment.

FIG. 8 is a cross-sectional view of an aerosol container provided with a drainage mechanism according to a third embodiment.

FIG. 9 is a sectional view of a main part of a drainage mechanism according to a third embodiment.

FIG. 10 is a sectional view of an aerosol container provided with a drainage mechanism according to a fourth embodiment.

[Explanation of symbols]

 Reference Signs List 1 aerosol container 2 valve 3 tube 4 floating body 5 weight 6 nozzle 8 through hole 11 suction port

 ────────────────────────────────────────────────── ─── Continued on front page (72) Inventor Katsuaki Oshima 2-3-1, Bunka, Sumida-ku, Tokyo Kao Corporation

Claims (8)

[Claims] 1. A drainage mechanism provided in a container containing a liquid, a valve for controlling a discharge amount of the liquid, a flexible tube having one end connected to the valve, and a flexible tube. A floating body connected to the other end of the floating body, a suction port of a liquid that moves together with the floating body and is connected to the valve via a guide path in the tube, and the floating body floats on a liquid surface. A drain for regulating the posture of the floating body so that the suction port is present in the liquid. 2. A drainage mechanism provided in a container containing a liquid, a pressurizing means for applying pressure to the liquid in the container, a nozzle for discharging the liquid, and a discharge of the liquid connected to the nozzle. A valve for controlling the amount; a flexible tube having one end connected to the valve; a floating body connected to the other end of the tube; A suction port for liquid connected to the valve via a path, and a weight that regulates a posture of the floating body so that the suction port is present in the liquid when the floating body is floating on the liquid surface. A drainage mechanism characterized in that: 3. A floating body is formed with a through hole passing through the center thereof, and the floating body is connected to the other end of the tube so that the through hole and a guide path in the tube are connected. And the weight is disposed on a side of the floating body opposite to a side connected to the other end of the tube, and a suction port for liquid connected to the through hole is formed around the weight. 3. The drainage mechanism according to claim 1, wherein the drainage mechanism comprises: 4. A floating body is formed with a through hole passing through the center thereof, and the floating body is connected to the other end of the tube so that the through hole and a guide path in the tube are connected. And the weight is disposed on a side of the floating body opposite to the side connected to the other end of the tube, and a suction port for liquid connected to a through hole of the floating body penetrates the weight. 3. The drainage mechanism according to claim 1, wherein the drainage mechanism comprises one or a plurality of holes. 5. A floating body is provided with a shaft so as to protrude from a surface thereof, and the floating body is connected to the other end of the tube by attaching a tube to the shaft. And, on the peripheral surface of the shaft, at a position not covered by the tube, a suction port for liquid connected to a guide path in the tube is formed, and furthermore, the floating body with the shaft is placed on the liquid surface. The drainage mechanism according to claim 1 or 2, wherein a weight is provided so that the suction port is in the liquid in a floating state. 6. A floating body is provided with a shaft protruding from the surface thereof, and the floating body is connected to the other end of the tube by attaching a tube to the shaft. And a position on the peripheral surface of the shaft body that is not covered with the tube is formed with a suction port for a liquid connected to a guide path in the tube, and further, the weight is arranged on the shaft body from the center of the floating body. The drainage mechanism according to claim 1, wherein the drainage mechanism is disposed at a position close to the drainage mechanism. 7. The drainage mechanism according to claim 1, wherein the tube has a coil shape. 8. The drainage mechanism according to claim 2, wherein the pressurizing means is a gas pressurized and filled in the container.