JPH1072052A - Liquid discharging utensil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save time and labor required for a sorted disposal consequent upon the application of a spring made of a metal, and at the same time, reduce the number of parts to reduce the cost, and increase the amount of a liquid to be discharged, and prevent a liquid drooping and a clogging from generating by integrally forming constituent members of a spring made of a resin and respective valve bodies of a suction valve and a discharging valve, of a synthetic resin. SOLUTION: A fitting cylinder 1, a first member 11 having a cylinder at the upper end of the fitting cylinder 1, an urging member 21 having a valve, a vertically movable member 31 and a top plate 41 are integrally formed of a synthetic resin material respectively. When a liquid is discharged, the top plate 41 is depressed, and the vertically movable member 31 is lowered, and a discharging valve 29 is opened by increasing the pressure in a second cylinder 36, and the liquid in the second cylinder 36 is made to flow into a first cylinder 14, and the liquid is discharged from a nozzle 39 by a downward movement of a cylindrical piston 32. A cylindrical spring 25 is restored by releasing the depressing, and the inside of the second cylinder 36 is vacuumized to close the discharging valve 29, and the liquid in a container is pumped up into the second cylinder 36 through a pumping up pipe 17, and the liquid in the nozzle 39 and the cylinder 38 is returned into the first cylinder 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a liquid dispenser.

[0002]

2. Description of the Related Art A manual pump type liquid dispenser has been widely used as a container for storing shampoo, rinse and the like, and its basic structure is as shown in Japanese Patent Application Laid-Open No. 7-242259. The cylinder is suspended from the mounting cylinder fitted to the body, mouth, and neck into the container body, and from the inside of the cylinder, an operating member having a press-down head with a nozzle at the upper end is urged upward to stand up, and the operating member is raised. The liquid in the container is sucked into the cylinder by the up and down movement of the cylinder, and the liquid in the cylinder is provided so as to be able to be discharged from the nozzle.

[0003]

In the conventional liquid dispenser as described above, the spring for urging the operating member upward is formed of metal, and the other members are formed of synthetic resin.
In order to reuse the resources, it is necessary to separate the metal and the synthetic resin material and discard them, which is considerably troublesome for consumers. In order to eliminate the trouble, if the above-mentioned spring is formed of a synthetic resin material and the whole is formed only of the synthetic resin, the labor of disassembling the dispenser and separating the resin material and the metal material can be omitted.

Further, in the above-mentioned conventional liquid dispenser, for example, it is necessary to separately form and assemble the spring and the suction valve body and / or the discharge valve body, so that the number of parts increases and the cost increases. There was a problem of getting high.

Further, in the above-mentioned conventional liquid dispenser, the liquid sucked into the cylinder is discharged from the cylinder through the stem hollow portion of the operating member which rises vertically upward.
Due to product size restrictions, there was a limit to the amount of liquid that could be dispensed. In addition, dripping of the liquid from the nozzle and clogging of the nozzle have been problems.

An object of the liquid dispenser according to the present invention is to form all members constituting the liquid dispenser from a synthetic resin material so as to eliminate the above-mentioned disadvantages associated with the use of a metal spring.
Integrating and integrating components, such as integrally molding the resin spring and each valve element of the suction valve and the discharge valve, so that the number of parts can be reduced and the cost can be reduced, and dispensing Another object of the present invention is to provide a structure capable of increasing the amount of liquid and preventing dripping and clogging.

[0007] The object of the liquid dispenser according to the second aspect is, together with the above object, the purpose of the liquid dispenser according to the first aspect.
The purpose is to further enhance the pouring performance and the operating performance.

[Means for Solving the Problems]

The liquid dispenser of the first means comprises a mounting cylinder 1 fitted on the outer surface of the mouth and neck of the container body, a first cylinder 14 hanging from the mounting cylinder 1, and attached to the lower end of the first cylinder. A first cylinder-equipped member 11 that erects a suction pipe cylinder 16 from the inner peripheral edge of the inwardly-flanged bottom wall 15,

A tubular spring 25 is integrally erected from a fitting cylinder 22 fixed to the outer surface of the upper end of the suction pipe cylinder 16, and an elastic skirt valve cylinder 24 extends downward from the fitting cylinder 22 outer surface. A biasing member 21 with a valve that projects

A large-diameter cylindrical portion 33 is erected from a cylindrical piston 32 fitted to the upper inner surface of the first cylinder 14, and an inward flange-like bottom plate provided on the lower inner surface of the large-diameter cylindrical portion 33.
From 35, the outer periphery of the lower end of the skirt-shaped valve cylinder 24 is fitted in a watertight manner, the second cylinder 36 is erected, and a part of the inward flange-like bottom plate 35 is opened, and the opening is opened at the lower end. A nozzle 39 that protrudes from the upper end of the large-diameter tube portion 33 outwardly from the upper end of the large-diameter tube portion 33 with the liquid outflow tube 38 as a portion rising from the large-diameter tube portion 33 and the second cylinder 36. Up and down moving member 31 that communicates with
When,

A top plate 41 capable of pressing down the cylindrical spring 25 and compressing the upper end surface of the second cylinder 36 to close the upper end surface of the large-diameter cylindrical portion 33;

The suction valve 28 is formed by closing the upper end surface of the suction pipe cylinder 16 with a valve plate 27 integrally provided on the upper inner surface of the fitting cylinder 22 via elastic pieces 26, 26, 26. At the same time, a discharge valve 29 is formed by the skirt-shaped valve cylinder 24 and the inner wall surface of the second cylinder 36,

[0013] The present invention is characterized in that all the constituent members are integrally formed of a synthetic resin material.

In the liquid dispenser of the second means, the upper end surface of the cylindrical spring 25 is pressed against the lower surface of the top plate 41, and the lower end surface of the skirt valve cylinder 24 is provided around the lower inner surface of the second cylinder 36. By locking to the upper surface of the locking ridge 37, the upper limit of the vertical moving member 31 is determined,

The outer diameter of the large-diameter cylindrical portion 33 is made smaller than the inner diameter of the first cylinder 14 so that the cylindrical piston 32
The seal ridges 34 provided on the lower outer surface of the large-diameter cylindrical portion 33 below the outside air intake hole 19 formed in the upper part of the first cylinder 14 and above the cylindrical piston are connected to the outside air intake hole. It is characterized in that it is located at a position higher than 19 and is in close contact with the upper inner wall surface of the first cylinder.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIGS. 1 to 3 will be described. Reference numeral 1 denotes a mounting cylinder which is screwed onto the outer surface of the mouth and neck of the container body, and has an inward flange 2 at the upper end. The mounting cylinder 1 is firmly fitted to the mouth and neck of the container body so as to be attachable and desirably detachable and not to be easily detached at the time of use or the like. Form, arrangement,
The number of protrusions and grooves, or the number of protrusions and perforations, can be fitted together.

At the upper end of the mounting cylinder 1, a first cylinder-attached member 11 is fixed by sandwiching the inward flange 2 between the lower surface of the outward ridge 12 and the upper surface of the outward flange 13 provided at the upper end. A first cylinder 14 is hung below the outward flange 13, an inward flange-like bottom wall 15 is provided at the lower end of the cylinder, and a suction pipe cylinder 16 stands upright from the inner peripheral edge of the bottom wall. The pipe for the suction pipe has an upper outer surface of the suction pipe 17 fitted to a middle portion of the inner surface, and the pipe is suspended in the container. The upper end of the pipe is in contact with each lower end surface of a plurality of longitudinal ribs 18 provided at predetermined intervals in the circumferential direction of the upper inner surface of the suction pipe cylinder 16.

When the liquid inside the container is sucked up through the suction pipe 17 and the inside of the container becomes a negative pressure, the outside air is brought into contact with the mounting cylinder and the first cylinder or between the mounting cylinder and the container. Although the air naturally enters the container through the gap of the threaded portion, in the embodiment shown in FIG. 1, in order to more reliably introduce the outside air and eliminate the negative pressure, the outside air is A suction hole 19 is provided.

On the outer surface of the upper end portion of the suction pipe cylinder 16, a fitting cylinder 22 constituting a biasing member 21 with a valve is provided. It is fixed by being fitted to the fitting groove 20 provided on the outer surface of the upper end portion. An elastic skirt valve cylinder 24 protrudes downward and outward from the center of the outer surface of the fitting cylinder. Further, the cylindrical spring 25 is erected integrally from the upper end surface of the fitting cylinder, and the upper end is pressed against the lower surface of the top plate 41 at the upper limit position of the below-described vertical movement member 31, thereby moving the vertical movement member 31 fixed to the top plate. It is biased upward. Furthermore,
As shown in FIG. 3, a valve plate 27 is integrally attached to the upper inner surface of the fitting cylinder 22 through elastic pieces 26, 26, 26,
The upper end opening of the suction pipe cylinder 16 is closed by 27 to form a suction valve 28.

The method of fixing the fitting tube 22 to the suction pipe tube 16 is not limited to the illustrated example, and other fixing methods such as screwing and bonding may be used.

In the embodiment shown in FIG. 1, the cylindrical spring 25 provided with the double spiral pipe forming line shown in FIG. 2 is used in the embodiment shown in FIG. 1. The cylindrical spring to be used is not limited to this, and the top plate 41
Any shape may be used as long as it can be elastically compressed and deformed in the vertical direction by pressing down, and has a space that does not hinder the flow of the liquid in the second cylinder. Various synthetic resin springs can be used, including those using.

The cylindrical spring 25 may be in a lightly contacted state or a non-contacted state without being pressed against the lower surface of the top plate 41 at the upper limit position of the vertically moving member 31 described later.

A cylindrical piston constituting a vertically movable member 31 is provided below the outside air suction hole 19 on the upper inner surface of the first cylinder 14.
32 is fitted, and from the upper end of the cylindrical piston, the first cylinder
A large-diameter cylindrical portion 33 having a smaller diameter than the 14 inner diameter stands up, and a seal ridge 34 is provided at a position above the outside air suction hole 19 on the lower outer surface of the large-diameter cylindrical portion. Close to the inner surface of the upper part of the cylinder. An inwardly-flanged bottom plate 35 is attached to the lower inner surface of the large-diameter cylindrical portion 33, and a second bottom plate 35
The cylinder 36 rises, the lower end outer peripheral portion of the above-described elastic skirt-shaped valve cylinder 24 is fitted to the lower inner surface in a watertight manner, and the discharge valve 29 is formed by the cylinder inner surface and the valve cylinder. The lower end surface of the skirt-shaped valve cylinder 24 is locked on the upper surface of the peripherally provided locking ridge 37 to set the upper limit of the vertically moving member. Further, a liquid outflow cylinder 38 having a part of the inward flange-like bottom plate 35 opened and having the opening as a lower end opening part stands up between the large diameter cylinder part 33 and the second cylinder 36. The upper end of the outflow cylinder communicates with a nozzle 39 protruding outward from the upper end of the large-diameter cylinder 33.

The upper end surface of the large-diameter cylindrical portion 33 is closed by a top plate 41. The top plate has its peripheral end face fitted to the inner surface of the upper end of the large-diameter cylindrical part with the lower surface of the peripheral part placed on the upper surface of the second cylinder and the upper surface of the liquid outflow cylinder top wall. Top plate 41
Is fixed to a vertically moving member. In the illustrated example, the fitting cylinder 43 hanging down from the lower surface is closely fitted to the inner surface of the upper end of the second cylinder 36 so that the fitting cylinder 43 does not easily come off even when pressed against the cylindrical spring 25. On the outer surface of the upper end of the large-diameter cylindrical portion 33 excluding the nozzle 37 portion, a finger hook 44 that constitutes a pressing head together with the top plate is provided.

Each of the above-described members is integrally formed of a synthetic resin material. In the above configuration, when the liquid is poured, the top plate 41 is pressed down. Then, the vertical moving member 31 moves down, and the pressure in the second cylinder 36 increases, and the lower part of the elastic skirt valve cylinder 24 is deformed toward the valve cylinder axis side by the pressure, so that the discharge valve 29 opens, The liquid in the second cylinder 36 flows into the first cylinder 14, and the pressure in the first cylinder is also increased by the downward movement of the cylindrical piston 32 at the lower end of the vertical moving member, so that the liquid in the cylinder is Nozzle 39 via outflow cylinder 38
It is poured out from.

When the pressing down is released, the cylindrical spring 25 compressed by the top plate 41 is restored, and the vertical moving member 31 is moved upward, the pressure in the second cylinder 36 is reduced to a negative pressure. The lower part of the valve cylinder 24 presses against the inner wall side of the second cylinder 36 to close the discharge valve 29, and the valve plate 27 pushes the elastic pieces 26, 26, 26 upward from the upper end surface of the suction pipe cylinder 16. The suction valve 28 opens and the liquid in the container is sucked into the second cylinder 36 via the suction pipe 17. The liquid in the nozzle 39 and the cylinder 38 returns to the inside of the first cylinder 14.

It should be noted that the liquid to be poured out may not be a liquid flow, but can be discharged as fog or foam by changing the nozzle 39. In the present invention, such fog, foam and the like are poured. Including those issued.

The outside air suction hole 19 is opened when the seal ridge 34 is located below the outside air suction hole 19, and introduces outside air into the container body to absorb the liquid when the vertically moving member moves upward. Eliminate the negative pressure caused by the rise.

[0029]

The present invention has the above-described configuration,
Since the liquid spouting device of the first aspect uses the resin spring 25 instead of the metal spring, the liquid spouter is advantageous in that the labor for separating the resin and the metal at the time of disposal is eliminated. In addition, the above-mentioned springs are sucked, and each
The liquid dispenser is attached to the mounting cylinder 1 and the first cylinder member 1 by forming the biasing member 21 with a valve integrally with the members 4 and 27.
1, 5 of the urging member 21 with a valve, the vertically moving member 31, and the top plate 41
Since it is composed of two synthetic resin integrally molded members, the number of parts of the liquid dispenser can be reduced and the cost can be reduced. Further, the liquid dispenser is provided with first and second two cylinders 1.
The cylinders 4 and 36 have the functions of sucking, storing, and discharging liquid in each cylinder, so that a large amount of liquid can be discharged from these two cylinders at once.
In addition, since the remaining liquid to be discharged from the nozzle 39, the cylinder 38, and the cylinder 14, and the liquid sucked from the container into the cylinder 36 are constantly stored in these two cylinders, it is always quick. And a desired amount of liquid can be stably discharged. Further, after the liquid is poured, the liquid in the nozzle 39 returns to the inside of the cylinder 14, so that no liquid dripping from the nozzle or clogging of the nozzle occurs.

Further, in the liquid discharger according to the second aspect, the outside air suction hole 19 is provided so as to be opened according to the up and down movement of the up and down moving member 31, so that the negative pressure in the container body due to the suction of the liquid can be always eliminated. As a result, the liquid sucking and discharging performance is further improved. Also, the lower end surface of the skirt valve
The upper end of the vertical moving member 31 is locked by locking to the upper surface of the locking ridge 37 provided around the lower inner surface of the cylinder 35, so the opening and closing of the discharge valve 29 is ensured, and the operation of the vertical moving member is reduced. Stabilize.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a liquid dispenser of the present invention.

FIG. 2 is an enlarged view of a cylindrical spring 25 of the liquid dispenser.

FIG. 3 is an enlarged view of a suction valve portion of the liquid dispenser of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mounting cylinder 11 ... Member with 1st cylinder 14 ... 1st cylinder 21 ... Urging member with a valve 25 ... Cylindrical spring 28 ... Suction valve 29 ... Discharge valve 31 ... Vertical movement member 36 ... 2nd cylinder 41 ... Top plate

Claims (2)

[Claims] 1. A mounting cylinder 1 fitted to the outer surface of the mouth and neck of a container body.
A first cylinder-equipped member 11 that suspends the first cylinder 14 from the mounting cylinder 1 and raises a suction pipe cylinder 16 from the inner peripheral edge of an inward flange-like bottom wall 15 attached to the lower end of the first cylinder. Along with erecting the cylindrical spring 25 integrally from the fitting tube 22 fixed to the outer surface of the upper end portion of the suction pipe tube 16, the elastic skirt-shaped valve cylinder 24 is moved downward and outward from the fitting tube 22 outer surface. A large-diameter cylindrical portion 33 is erected from a protruding urging member 21 with a valve and a cylindrical piston 32 fitted to the upper inner surface of the first cylinder 14, and is attached to the lower inner surface of the large-diameter cylindrical portion 33. From the inward flanged bottom plate 35, the outer periphery of the lower end of the skirt valve cylinder 24 is fitted in a watertight manner to raise the second cylinder 36, and the inward flanged bottom plate 35
Liquid outflow cylinder which opens a part of the opening and makes the opening a lower end opening
A vertical moving member which rises through the space between the large-diameter cylindrical portion 33 and the second cylinder 35, and communicates the upper end of the outflow cylinder with a nozzle 39 protruding outward from the upper end of the large-diameter cylindrical portion 33. 31 and the above-mentioned cylindrical spring 25 can be pressed and compressed, and
The upper end surface of the cylinder 36 is hermetically sealed, and the top plate 41 is closed at the upper end surface of the large-diameter cylindrical portion 33. The upper end surface of the suction pipe cylinder 16 is elastically attached to the upper inner surface of the fitting cylinder 22. 26, 26, 26 to form a suction valve 28 closed by a valve plate 27 attached integrally, and a discharge valve 29 is formed by the skirt valve cylinder 24 and the inner wall surface of the second cylinder 36, A liquid dispenser, wherein all of the constituent members are integrally formed of a synthetic resin material. 2. The upper end surface of the cylindrical spring 25 is pressed against the lower surface of the top plate 41, and the lower end surface of the skirt valve cylinder 24 is brought into contact with the upper surface of a locking ridge 37 provided around the lower inner surface of the second cylinder 36. The upper end of the vertical moving member 31 is determined by locking, and the outer diameter of the large-diameter cylindrical portion 33 is made smaller than the inner diameter of the first cylinder 14.
A seal ridge 34 provided on the lower outer surface of the large-diameter cylindrical portion 33 above the cylindrical piston is provided below the external air intake hole 19 formed in the upper part of the cylinder 14. The liquid dispenser according to claim 1, wherein each of the liquid dispensers is located in close contact with an upper inner wall surface of the first cylinder.