JP4222473B2 - Middle dish rising type liquid discharge container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a middle dish raising type liquid discharge container.
[0002]
[Prior art]
For example, as shown in Patent Document 1, a cylinder of a vertical pump fitted with a rising-type intermediate tray at the bottom of a container and attached to the upper part of the container is suspended into the container, and is urged upward from the cylinder to stand up. Numerous types of liquid raising containers of the middle pan type are known in which the liquid in the container is sucked into the cylinder by the vertical movement of the operating member and the liquid in the cylinder is discharged from the nozzle at the upper end of the operating member.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-224598
[Problems to be solved by the invention]
The middle dish of the container has a central portion formed in a recess in the upper surface opening so that almost all of the stored liquid is discharged. When the stored liquid is highly viscous, when the liquid in the container is reduced, the middle dish rises and the upper part of the middle dish recess is positioned above the suction port at the lower end of the cylinder. An air intake hole communicating with the head space in the upper end portion of the container body from the suction port at the lower end of the cylinder is formed along the outer surface, so that the air in the head space is sucked into the pump and discharged together with the stored liquid. In this way, the air sucked into the pump together with the stored liquid is pressurized, and since the pressurized state is canceled at the same time as the discharge, the air suddenly expands and ruptures, and the discharged liquid may be scattered.
[0005]
The present invention eliminates such conventional drawbacks by preventing inhalation of liquid in the head space.
[0006]
[Means for Solving the Problems]
As a first means, there is an ascending-type intermediate tray in the bottom of the container body, and the actuating member sucks up the liquid sucked up and down by an upward movement of the actuating member that is urged upward from the cylinder hanging down into the upper part of the container body. In the middle dish rising type liquid dispensing container formed so that it can be discharged from the nozzle at the upper end,
A first outward flange 23 is provided at the lower end of the fitting tube 22 and a seal plug 24 is provided on the inner surface of the fitting tube, and a sealing plug 21 is provided, and the lower part of the cylinder 13 is fitted into the seal projection 24 in a watertight manner. In addition, the outer peripheral portion of the first outward flange 23 was brought into contact with the inner surface of the container body, and the fitting tube 22 was fitted into the inner surface of the container body neck portion 4 in a watertight manner.
[0007]
As the second means, the first reinforcing cylinder 25 having the first means and the outer periphery of the first outward flange 23 of the sealing plug 21 hanging downward and outward, and the upper outer side from the lower end of the reinforcing cylinder. It was formed in the groove-shaped part 28 of the upper surface opening formed by the pressure contact cylinder 26 to the inner wall surface of the container body part.
[0008]
As a third means, the central part of the inner plate 31 having the first or second means is formed in the concave part 32 of the upper surface opening into which the lower part of the cylinder 13 can be inserted, and more than the upper end of the concave part. When the inner plate 31 is raised to the upper limit when the upper plate shape of the outer plate portion is made to correspond to the lower surface shape of the outer seal plug portion rather than the lower end of the fitting tube 22 of the seal plug, the inner surface of the recess 32 And the outer surface of the cylinder portion inserted into the recess, and the lower outer surface of the outer portion of the seal plug and the upper surface of the outer pan portion more than the upper end of the recess are formed so as to be in contact with or close to each other.
[0009]
As a fourth means, the first, second, or third means is provided, and the lower portion of the cylinder is formed in a small outer diameter portion 13b via a downward stepped portion 13a, and the sealing plug 21 The inner peripheral surface of the seal protrusion 24 was brought into pressure-tight contact with the outer surface of the large outer diameter portion 13c above the downward stepped portion 13a.
[0010]
As the fifth means, the first, second, third or fourth means is provided, and a downward stepped portion 29 is formed on the outer surface of the seal plug fitting cylinder 22, and the inner surface of the container body neck 4 An upward stepped portion 4a was formed, and the seal plug 21 was formed so that it could not be pulled out by engagement of these two stepped portions.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The drawings will be described below. First, a conventionally known portion will be briefly described. Reference numeral 1 denotes a container body that opens the lower end surface of the trunk portion 2, and the mouth and neck portion 4 is erected from the upper end of the trunk portion via the shoulder portion 3. A bottom cylinder 5 provided separately is fitted to the lower end of the barrel portion 2, and a rising-type inner tray 31 is fitted into the lower portion of the barrel portion.
[0012]
11 is a vertical pump attached to the container body, the pump screwing the attachment cylinder 12 to the outer surface of the container body neck 4 and hanging the cylinder 13 from the attachment cylinder into the upper part of the container body, The actuating member 14 is erected upwardly from within the cylinder, the liquid in the container body 1 is sucked into the cylinder by the vertical movement of the actuating member, and the push-down in which the liquid in the cylinder is fitted to the upper end of the actuating member The nozzles 16 of the head 15 are formed so that they can be discharged. Reference numeral 17 denotes a poppet-like suction valve body mounted in the cylinder to increase the compression ratio of the pump, and 18 denotes a cap.
[0013]
In the present invention, as shown in FIG. 2, a seal plug 21 having a first outward flange 23 at the lower end of the fitting tube 22 and a seal protrusion 24 on the inner surface of the fitting tube is provided. As shown, the outer periphery of the first outward flange 23 is fitted in a watertight manner to the inner surface of the container body so that the fitting tube 22 can be tightly fitted to the lower inner surface of the mouth neck 4. As shown in the figure, the seal plug 21 has a groove shape with an upper surface opening formed by a first reinforcing cylinder 25 that hangs downward on the outer periphery of the first outward flange and a press-contact cylinder 26 that rises upward and outward from the lower end of the first reinforcing cylinder. The fitting tube 22 may be formed on the upper portion 28. The upper outer surface of the fitting tube 22 has a tapered shape with a small upper diameter, the lower end of the tapered portion is a downward step portion 29, and the downward step portion is formed on the inner surface of the mouth and neck portion. 4a is engaged.
[0014]
The inner tray 31 corresponding to the shape of the lower surface of the seal plug 21 may be formed as follows.
[0015]
The middle plate 31 is formed with a central portion at a concave portion 32 having an upper surface opening into which the lower side of the cylinder 13 can be inserted, and a second reinforcing cylinder 34 is suspended from the upper end of the concave portion via a second outward flange 33 to A sliding cylinder 36 is attached to the distal end of the outwardly projecting wall portion 35 protruding from the lower end of the reinforcing cylinder, and is raised in contact with the inner wall surface of the container body in a watertight manner. These are formed so as to correspond to the shape of the lower surface of the sealing plug portion outside the lower end of the fitting tube of the sealing plug 21 described above, and when the inner plate 31 is raised to the upper limit as shown in FIG. The outer surface of the cylinder part inserted into the recess, the lower outer surface of the outer part of the sealing plug, and the upper surface of the outer pan portion more than the upper end of the recess 32 are in contact with or close to each other. The storage liquid remaining in the container is provided so as to be sucked up and discharged by a pump operation.
[0016]
The cylinder 13 may be formed such that the lower portion of the cylinder is a small outer diameter portion 13b via a downward stepped portion 13a and the upper portion of the lower stepped portion 13a is a large outer diameter portion 13c. The inner peripheral surface of the seal protrusion 24 is provided so as to be in pressure contact with the lower outer peripheral surface of the large cylinder outer diameter portion 13c.
[0017]
As shown in FIG. 3, liquid filling into the container body can be performed in a state in which the seal plug 21, the bottom tube 5, and the inner dish 31 are fitted into the container body 1. At the time of filling, the liquid level is provided in the vicinity of the seal protrusion 24, and from this state, the lower part of the cylinder is inserted into the seal protrusion 24, and the pump is attached to the neck of the container body. The liquid in the container overflows in accordance with the volume of the cylinder part pushed downward of the seal protrusion 24, and the overflowed liquid is between the outer surface of the small outer diameter portion 13b at the bottom of the cylinder and the inner peripheral surface of the seal protrusion 24. Through the gap formed between the cylinder outer surface and the container neck 4 of the container body, and part of the overflow liquid enters the cylinder through the lower end opening. The inner peripheral surface of the seal protrusion 24 contacts the outer surface of the cylinder large outer diameter portion 13c and the gap is closed, and at the same time, the lowering of the cylinder 13a is stopped. Accordingly, the liquid level of the stored liquid can be positioned above the seal protrusion 24.
[0018]
In the above configuration, when the operating member 14 is moved up and down, the liquid 31 in the container is sucked into the cylinder from the lower end of the cylinder 13 and discharged from the nozzle 16, and the inner plate 31 rises as the liquid in the container decreases due to the discharge. As shown in FIG. 4, the upper surface of the outer periphery of the inner tray 31 rises until it contacts the lower surface of the seal plug 21, but the seal protrusion 24 of the seal plug 21 is in watertight contact with the outer surface of the large cylinder outer diameter portion 13c. Air in the head space located above the ridge 24 is not sucked into the cylinder 13.
[0019]
【The invention's effect】
The present invention has the above-described configuration. With the configuration according to the first aspect, the first outward flange 23 of the seal plug 21 stops at a position where it contacts the lower surface of the shoulder 3 of the container body, and the seal The sealing ridge 24 of the stopper divides the inside of the liquid storage part below the sealing stopper and the inside of the head space formed above the sealing ridge in a watertight manner, and thus the head together with the storage liquid even after the storage liquid is reduced. It is possible to prevent the air in the space from being sucked into the pump and discharged together with the stored liquid.
[0020]
According to the second aspect, the pressure contact cylinder 27 of the seal plug 21 can be brought into watertight pressure contact with the inner wall surface of the upper end portion of the container body 2, so that the container body and the seal plug are filled when liquid is filled into the container body. The liquid in the container does not leak through the gap, and the air in the head space does not enter the container body through the gap between the container body and the seal plug when the liquid in the container is discharged.
[0021]
By forming as in claim 3, it is possible to discharge almost no liquid in the container.
[0022]
According to the fourth aspect, when the pump is mounted from the liquid state in the container as described above, the overflow in the container passes between the seal protrusion 24 and the small outer diameter portion 13b of the cylinder. It can be moved into the upper part of the container neck, and it is easy to prevent the lower surface of the head space from being formed below the seal plug 21.
[0023]
By forming as in claim 5, when the lower part of the cylinder is inserted into the fitting tube 22 of the sealing plug fitted into the container body neck, the fitting tube 22 is predetermined by the frictional resistance with the cylinder. It can be prevented from being pushed down from the position or falling down.
[Brief description of the drawings]
FIG. 1 is a half sectional view of a container of the present invention.
FIG. 2 is an exploded cross-sectional view of a container portion excluding a pump portion.
FIG. 3 is an exploded half sectional view of the container, showing a state in which the container is filled with liquid.
FIG. 4 is a half sectional view showing a state in which the liquid in the container is almost discharged.
[Explanation of symbols]
1 ... container body 5 ... bottom tube
11 ... Vertical pump 12 ... Installed cylinder
13 ... Cylinder 13a ... Down step
13b ... Small outer diameter part 13c ... Large outer diameter part
14 ... Actuating member 21 ... Seal plug
22 ... Fitting cylinder 23 ... First outward flange
24… Seal ridge 25… First reinforcement tube
26… Pressure contact tube 29… Down step
31… Inner dish 32… Recess
33 ... 2nd outward flange 34 ... 2nd reinforcement cylinder
35 ... Outward projecting wall 36 ... Sliding cylinder
41 ... Storage liquid

Claims (5)

The lifting member moves up and down from the cylinder that is lifted upward from the cylinder that hangs down into the upper part of the container body, and the sucked-up liquid is discharged from the nozzle at the upper end of the working member. In the middle dish rising type liquid dispensing container formed as possible,
A first outward flange 23 is provided at the lower end of the fitting tube 22 and a seal plug 24 is provided on the inner surface of the fitting tube, and a sealing plug 21 is provided, and the lower part of the cylinder 13 is fitted into the seal projection 24 in a watertight manner. And the outer periphery of the first outward flange 23 is brought into contact with the inner surface of the container body, and the fitting tube 22 is water-tightly fitted to the inner surface of the container body neck 4. Middle dish rising type liquid discharge container. The outer periphery of the first outward flange 23 of the sealing plug 21 is a first reinforcing cylinder 25 that hangs downward and outward, and a pressure-contacting cylinder 26 that rises upward and outward from the lower end of the reinforcing cylinder to the inner wall surface of the container body. The middle dish rising type liquid discharge container according to claim 1, characterized in that it is formed in the groove-shaped part 28 of the upper surface opening formed. The central portion of the intermediate tray 31 is formed in a concave portion 32 having an upper surface opening through which the lower portion of the cylinder 13 can be inserted. As the shape corresponding to the lower surface shape of the outer seal plug portion rather than the lower end of the cylinder 22, when the inner tray 31 rises to the upper limit, the inner surface of the recess 32 and the outer surface of the cylinder portion inserted into the recess are also sealed. 3. The middle dish rising type liquid discharge container according to claim 1 or 2, wherein the lower outer surface of the stopper outer part and the upper surface of the outer middle dish part than the upper end of the recess are formed so as to contact or be close to each other. . The lower portion of the cylinder is formed in a small outer diameter portion 13b via a downward stepped portion 13a, and the inner peripheral surface of the seal protrusion 24 of the seal plug 21 has a large outer diameter above the downward stepped portion 13a. 4. The intermediate dish rising type liquid discharge container according to claim 1, wherein the container 13c is brought into pressure-contact with the outer surface of the portion 13c. A downward stepped portion 29 is formed on the outer surface of the seal plug fitting tube 22, and an upward stepped portion 4a is formed on the inner surface of the container body neck portion 4, so that the seal plug 21 is engaged by the engagement of these two stepped portions. 5. The middle dish rising type liquid discharge container according to claim 1, wherein the container is formed so that it cannot be pulled out.

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