JPH11208701A - Container for injecting constant quantity of liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow especially highly viscous liquid to be injected by a constant quantity without making the outside air flow into a container body. SOLUTION: A lower part of a main cylindrical member 11 is fitted into a neck of a tube container body, a first valve member 21 is fitted into its inner cylinder 14, in addition a sliding cylinder 31 is fitted into a main cylinder 12 of the main cylindrical member 11 so that it can be forced to slide, and a second valve member 41 with an engaging plate 43 engaged with an upper face of a third inward flange 33 of the sliding cylinder 31 is provided. Then an inner periphery on a lower face of the third inward flange 33 of the sliding cylinder 31 and an upper face of a tapered cylinder 44 protruding downwardly outward from a lower end of a bottomed cylinder 42 of the second valve member 41 form an upward injection valve 45 which closes with the second valve member 41 rising with respect to the sliding cylinder 31 and which is closed with the member lowering. A push-down rod 54 is hung from a center of a top wall of a cap 51 screwed onto an external face of the main cylinder 12 through an opening 16 of a top plate 17 closing an upper face of the main cylinder 12 so that the second valve member 41 can be pushed down by the push-down rod 54.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for dispensing a fixed amount of liquid.

[0002]

2. Description of the Related Art Japanese Utility Model Application Laid-Open No. 7-2252 comprises a container having an elastically squeezable body, and a measuring instrument having a lower cylindrical portion fitted to the mouth and neck of the container. A partition wall is laid laterally on the inner surface of the tubular portion fitted to the mouth and neck, and a pipe is pierced in the center of the partition wall, and the lower cylindrical portion is extended higher than the upper end of the pipe to measure. When the container is squeezed, the liquid in the container enters the measuring cylinder through the pipe. Also, the upper liquid is sucked back into the container body by the elastic recovery of the trunk portion, and a fixed amount of liquid remains in the measuring cylinder and is measured.

[0003]

The above-mentioned container is provided so that when the pressure inside the container is increased by squeezing the body of the container, the liquid enters the measuring cylinder through a pipe hanging down into the container. It is convenient when viscosity is poor,
As the viscosity increases, it becomes more difficult for the liquid to flow through the pipe into the measuring cylinder. Also, since the liquid excessively discharged into the measuring cylinder is sucked back by elastic restoration of the body and measured, the outside air enters the container body at the time of sucking back, and it is necessary to prevent the stored liquid from being oxidized. Could not be used.

According to the present invention, a lower cylinder portion is fitted to the mouth and neck of a tube container body to erect a main cylinder member, and discharge valves are provided above and below the main cylinder member. When the inside of the cylinder can be moved up and down, and a push rod for pushing down the upper discharge valve is hung down from the top wall of the cap screwed to the main cylinder, and the container body is squeezed from the above-mentioned cap removed state, the lower discharge is performed. The liquid that has entered the upper discharge valve lower chamber through the valve closes the upper discharge valve and pushes up the main cylinder. When the cap is screwed into the main cylinder from this state, the push-down rod opens the upper discharge valve. By pressing down while keeping it, the liquid between the lower discharge valve and the upper discharge valve is provided to be moved above the upper discharge valve, the cap is removed from this state, and the container body is squeezed. The liquid passing between the two discharge valves pushes the upper discharge valve upward, and the liquid is pushed up. In this way, the liquid inside the upper discharge valve is provided so as to be discharged from the upper end of the main cylinder. In this way, even a viscous liquid can be easily discharged without flowing outside air into the container body. It is provided to be able to.

[0005]

Means for Solving the Problems A flexible body 2 is provided.
In addition, the tube container body 1 erecting the mouth and neck 3 hangs down the lower portion of the main tube 12 to the outer surface of the mouth and neck, and the inner surface of the mouth and neck through a first inward flange 13 attached to the lower portion of the main tube. Inner cylinder 14
The main cylinder 12 is erected so that it cannot be rotated, a second inward flange 15 is attached to the lower end of the inner cylinder, and the upper end face of the main cylinder is closed by a top plate 17 of a central opening 16. A cylindrical member 11,
From the lower end of the fixed cylindrical portion 22 fitted to the inner surface of the inner cylinder 14, a plurality of spirally wound spring pieces 23 project at substantially equal intervals, and the tips of these spring pieces are attached to the outer peripheral surface of the valve plate 24, A first valve member 21 forming a lower discharge valve 25 in which the lower surface of the outer peripheral portion of the 24 is in contact with the upper surface of the inner peripheral portion of the second inward flange 15, and the inner peripheral surface of the main cylinder 12 is forcibly slidable. A sliding cylinder 31 having a third inward flange 33 protruding from the inner surface of the short cylindrical portion 32 whose outer peripheral surface is pressed against the outer surface in a watertight manner, and a bottomed cylinder 42 loosely inserted into the third inward flange 33. A plurality of engagement plates 43 project from the upper end of the third inward flange 33 so as to be engaged with the upper surface of the third inward flange 33, and have a larger outer diameter than the flange hole of the third inward flange 33 from the lower end of the bottomed cylinder and the main cylinder. 12 Expand and project the tapered cylinder 44 with an outer diameter smaller than the inner diameter downward and outward,
The second valve member 41 that closes and opens the upper discharge valve 45 formed by the lower surface of the inner peripheral portion of the third inward flange 33 and the upper surface of the tapered cylinder, and the outer surface of the main cylinder 12 by vertical movement with respect to the sliding cylinder 31. A threaded peripheral wall 53 hanging down from the outer periphery of the top wall 52 is screwed into the opening 16 from the center of the top wall 52, and a push-down rod 54 is hung down through the bottom plate of the bottomed cylinder. The second valve member 41 is pushed down until then, and a cap 51 that seals the opening 16 with a cylindrical stopper 55 hanging down from the lower surface of the top wall 52 is formed.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A tube container 1 has a flexible and elastic body 2 and an upright mouth and neck 3.

The main cylinder of the main cylinder member 11 is provided at the mouth and neck of the container body.
12 Fit the lower part so that it cannot rotate. At the lower part of the main cylinder, an inner cylinder 14 is hung down via a first inward flange 13, and at the lower end of the inner cylinder, a second inward flange 15 is attached. Also, the inner cylinder 14 is fitted to the inner surface of the mouth and neck, respectively, and withdrawal and rotation are impossible by engagement means provided on the outer surface of the mouth and neck and the lower part of the main cylinder. The upper end surface of the main cylinder is closed by the top plate 17 of the central opening 16. The top plate hangs down from the outer periphery of the double cylinder portion 18 so as to be unable to be pulled out to the inner and outer surfaces of the upper end of the main cylinder 12, and the top plate is formed in a tapered shape having an upper small diameter. A male screw 19 is provided on the lower half outer surface of the main cylinder.

The fixed cylinder portion 22 of the first valve member 21 is fitted into the inner cylinder 14 so that it cannot be pulled out. From the lower end of the fixed cylinder,
As shown in FIG. 5, a plurality of spirally wound spring pieces 23 are projected at equal intervals, and the ends of the spring pieces are attached to the outer peripheral surface of the valve plate 24. The lower discharge valve 25 is formed in contact with the upper surface of the inner peripheral portion.

Into the main cylinder 12, there is provided a short cylinder portion 32 whose outer peripheral surface is pressed against the outer peripheral surface in such a manner that it can be forcedly slid, that is, cannot descend under its own weight, and is watertight. Orientation flange 33
The sliding cylinder 31 provided with is fitted. The short cylinder portion 32 has an outer diameter in the middle portion in the vertical direction smaller than outer diameters at both upper and lower ends.

Reference numeral 41 denotes a second valve member, which projects a plurality of engagement plates 43 outwardly from the upper end of the bottomed cylinder 42 loosely inserted into the third inward flange 33 as shown in FIG. The lower surface of the front end portion of the equal engagement plate is engaged with the upper surface of the third inward flange 33 of the above-described sliding cylinder, and the lower end of the bottomed cylinder 42 is connected to the third inward flange.
A tapered cylinder 44 having an outer diameter larger than the inner diameter of 33 and an outer diameter smaller than the inner diameter of the main cylinder 12 is projected downward and outward. When the engagement plate 43 is engaged with the upper surface of the third inward flange 33, a gap is formed between the upper surface of the tapered cylinder and the third inward flange. By pushing up the valve member 41, the lower surface of the inner peripheral portion of the third inward flange 33 and the upper surface of the tapered cylinder 44 are provided in a water-tight manner, and the upper discharge valve 45 is formed with them.

Reference numeral 51 denotes a cap in which a peripheral wall 53 hanging down from the outer periphery of the top wall 52 is screwed onto the outer surface of the main cylinder 12. The lower plate of the bottomed cylinder 42 of the second valve member is pushed down by the pushing rod so that the lower end of the tapered cylinder 44 can be pressed against the upper surface of the first inward flange 13. Further, a cylinder plug 55 is hung down from the lower surface of the top wall around the upper end of the push-down bar, and the cylinder plug closes the opening 16 when the cap is lowered to the lower limit. In the illustrated embodiment, furthermore, the seal cylinder 56 is hung down from the outer peripheral part lower surface of the top wall, and when the cap is located at the lower limit, the seal cylinder 56 is provided so as to be airtightly pressed against the outer peripheral part upper surface of the top plate 17 closing the upper end surface of the main cylinder 12. I have.

Each of the above members is formed of a synthetic resin material. In the above configuration, when the cap 51 is removed from the state shown in FIG.
The liquid having passed through the main cylinder member pushes up the second valve member 41, and the lower surface of the inner peripheral edge of the third inward flange 33 and the tapered cylinder 44.
The upper discharge valve 45 formed by the upper surface is closed. Further, by squeezing the container body, the upper discharge valve remains closed while the second
The valve member 41 and the sliding cylinder 31 rise inside the main cylinder 12 and stop when they come into contact with the top plate 17.

From this state, as shown in FIG.
Is fitted and pushed down, first, the second valve member 41 descends with respect to the sliding cylinder 31 to open the upper discharge valve 45, and the engagement plate 43 of the second valve member 41 The second valve member descends, and the liquid below the second valve member moves through the upper discharge valve 45 into the sliding cylinder and the main cylinder above the second valve member. At this time, the lower discharge valve 25 is closed.

Further, by lowering the cap 51, the second valve member 41 and the sliding cylinder 31 are both lowered while the upper discharge valve 45 is open, so that there is a gap between the lower discharge valve 25 and the upper discharge valve 45. The liquid that has moved moves above the second valve member 41 and the sliding cylinder 31.

After the second valve member 41 is lowered to the lower limit, the cap is removed and the body of the container is squeezed again.
After the upper discharge valve 45 is closed by raising the 41, the second valve member and the sliding cylinder are pushed up together as shown in FIG. 3, so that the liquid above them is pushed out from the opening 16, and It is to be poured out.

[0016]

According to the present invention, a plurality of spirally wound spring pieces 23 project from the lower end of the fixed cylindrical portion 22 fitted to the inner surface of the inner cylinder 14 of the main cylindrical member 11. The lower discharge valve 25 is formed by attaching the end of the spring piece to the outer peripheral surface of the valve plate 24 and abutting the lower surface of the outer peripheral portion of the valve plate to the upper surface of the inner peripheral portion of the second inward flange 15 to open and close the valve. And the third inward flange 33 from the inner surface of the short cylinder portion 32 whose outer peripheral surface is pressed against the inner peripheral surface of the main cylinder 12 in a forcedly slidable and watertight manner. The inner peripheral edge of the third inward flange of the sliding cylinder 31 projecting therefrom, and the bottomed cylinder 42 loosely inserted into the third inward flange 33
A plurality of engagement plates 43 project from the upper end of the third inward flange so as to be engaged with the upper surface of the third inward flange, and the taper of the second valve member 41 that expands and projects the tapered cylinder 44 downward and outward from the bottom end of the bottomed cylinder. Since the second valve member 41 is closed and opened by the vertical movement of the second valve member 41 with respect to the sliding cylinder 31 on the upper surface of the cylindrical cylinder 44, the liquid flowing into the main cylinder 12 is supplied to the second valve member
When the sliding cylinder 31 is pushed up through 41, the upper discharge valve 45 is closed, and the second valve member 41 is pushed by the push-down rod 54 by screwing the cap 51.
At the same time, when the sliding cylinder 31 is pushed down, the upper discharge valve 45 can be opened.

The lower discharge valve 25 is provided in the lower part of the main cylinder member 11 and the upper discharge valve 45 is provided in the upper part of the main cylinder.
The second valve member 41 and the sliding cylinder 31 are provided so as to be lowered while the upper discharge valve 45 is opened by screwing the cap 51 into the container 51, so that a fixed amount of liquid can be sequentially discharged. Also, since the pipe for liquid ejection as in the conventional example is not used, no problem is exhibited even if the viscosity of the liquid is large, and since the replacement outside air does not need to flow into the container body, the stored liquid is not necessary. It is not affected by the outside air.

[Brief description of the drawings]

FIG. 1 is a half sectional view of a main part of the container of the present invention.

FIG. 2 is a perspective view of a main member used in the container of FIG.

FIG. 3 is a half sectional view showing a state in which a cap is removed and liquid is being discharged.

FIG. 4 is a half sectional view showing a cap screw-down state.

FIG. 5 is an enlarged plan view of a main member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Tube container 11 ... Main cylinder member 21 ... 1st valve member 25 ... Lower discharge valve 31 ... Sliding cylinder 41 ... 2nd valve member 45 ... Upper discharge valve 51 ... Cap

Claims (1)

[Claims] 1. A tube container body 1 having a flexible trunk 2 and standing up a mouth and neck 3, a lower part of the main cylinder 12 to the outside of the mouth and neck, and a tube to the inside of the mouth and neck. An inner cylinder 14 hanging down via a first inward flange 13 attached to the lower part of the cylinder is non-rotatably fitted into the inner cylinder 14 to erect the main cylinder 12, and a second inward flange 15 is attached to the lower end of the inner cylinder. A main cylinder member that closes the upper end surface of the main cylinder with a top plate 17 of a central opening 16.
From the lower end of the fixed cylindrical portion 22 fitted to the inner surface of the inner cylinder 14, a plurality of spirally wound spring pieces 23 project at substantially equal intervals, and the tips of these spring pieces are attached to the outer peripheral surface of the valve plate 24. The first valve member 21 forming the lower discharge valve 25 in which the lower surface of the outer peripheral portion of the valve plate 24 is in contact with the upper surface of the inner peripheral portion of the second inward flange 15, and the inner peripheral surface of the main cylinder 12 is forcibly applied. A third inward flange is formed from the inner surface of the short cylindrical portion 32 in which the outer peripheral surface is slidably and watertightly pressed.
A plurality of engaging plates 43 are formed by engaging the sliding cylinder 31 projecting the 33 and the upper surface of the third inward flange 33 from the upper end of the bottomed cylinder 42 loosely inserted into the third inward flange 33. A tapered cylinder 44 having a larger outer diameter than the flange hole of the third inward flange 33 and a smaller outer diameter than the inner diameter of the main cylinder 12 is projected from the lower end of the bottomed cylinder downward and outward, and the sliding is performed. Moving cylinder 31
A second valve member 41 that closes and opens an upper discharge valve 45 formed by the inner peripheral lower surface of the third inward flange 33 and the upper surface of the tapered cylinder, and a top wall 52 to the outer surface of the main cylinder 12. A threaded peripheral wall 53 hanging from the outer periphery is used. A push rod 54 that is loosely inserted into the opening 16 from the center of the top wall 52 and hangs down is provided through a bottom plate of the bottomed cylinder.
12. A quantitative liquid dispensing container comprising a second valve member 41 pushed down to a lower portion and a cap 51 for closing the opening 16 with a cylindrical stopper 55 hanging down from the lower surface of the top wall 52.