JP2607391Y2 - Liquid dispense container - Google Patents

Description

[Detailed description of the invention]

[0001]

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

[0002]

[Prior art]

2. Description of the Related Art There is known a liquid dispensing container configured to compress a liquid and discharge the liquid through a valve opened by the liquid pressure. There is a so-called aerosol spray in which the liquid inside the container is ejected by the gas pressure of the container.

[0003] However, the use of chlorofluorocarbon gas has been stopped because it destroys the ozone layer, and there is a demand for an alternative.

[0004] The present invention has been made in view of such circumstances, and proposes a liquid discharging container capable of discharging a good liquid with a simple operation without using Freon gas.

[0005]

In order to solve the above-mentioned problems, the container of the present invention has a lower end surface opening cylinder defined by a partition wall 8 defining an upper part in an upper chamber 9 and a lower part in a lower chamber 10. A container body 2, a movable bottom wall 3 whose outer peripheral edge is liquid-tightly and slidably fitted to the lower portion of the inner wall of the upper chamber 9, and a top wall 7 of the upper chamber 9. A push-down valve-open type aerosol valve 4 having an opening 13 that can be opened and closed freely;
A push-down head 18 fitted to the upper end of a stem 15 projecting upward and downward freely, and an outer peripheral upper part fitted in an airtight and slidable manner in an outwardly biased state at a lower part of the inner peripheral surface of the lower chamber 10, A pressurizing cylinder 5 having a lower end protruding from the lower end opening of the lower chamber 10 and capable of being pushed in and not being able to come out , and having a closed upper end surface and having a cylindrical shape, which is opened when the pressurizing cylinder 5 is pushed into the partition wall 8. A first check valve 24 is provided, and a second check valve 27 is provided on the top wall of the pressurizing cylinder 5 to open when the cylinder 5 moves outward.

[0006]

When the pressurizing cylinder 5 is pushed in from the state shown in FIG. 1, the second check valve 27 closes, and the first check valve 24 opens to open the lower chamber 10.
The air inside is sent to the lower portion of the movable bottom wall 3 of the upper chamber 9 via the first check valve 24, and accordingly, the movable bottom wall 3 rises and the liquid stored above the bottom wall 3 is pressurized. .

Next, when the pressing is released, the pressurizing cylinder 5 is pushed out by the action of the spring 21, and this time the first check valve
24 closes and the second check valve 27 opens to allow the outside air
Introduced into 10. This pressurizing operation is performed once or twice or more as needed.

After the pressurization of the liquid is completed, if the head 18 is pressed down, the valve 4 is opened and the pressurized stored liquid is discharged from the nozzle of the head 18.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the present invention. In the drawings, reference numeral 1 denotes a liquid discharging container. The container 1 includes a container body 2, a movable bottom wall 3, a push-down valve 4,
The pressurizing cylinder 5 is configured as a main member.

The above-mentioned container body 2 has a cylindrical shape with an opening at a lower end surface formed by extending a top wall 7 from an upper end of a cylindrical peripheral wall 6 having an inner surface having the same diameter from the bottom to the top. A partition wall 8 that traverses the interior is placed at a level, and the upper part is an upper room 9,
The lower part is configured as a lower chamber 10.

The movable bottom wall 3 includes a cylindrical sliding portion 11 whose upper and lower parts protrude outward in a skirt shape, and a disk-shaped bottom wall portion 12 integrally extending from an upper inner surface of the sliding portion 11. The outer surface of the cylindrical sliding portion 11 is hermetically sealed to the lower part of the inner surface of the container peripheral wall 1 in the upper chamber 9.
The inside of the upper chamber 9 is mounted so as to be able to ascend so as to be slidable and liquid-tight.

The push-down valve 4 has a lower end portion of a downwardly extending cylindrical portion 14 in a liquid-tight manner fitted to an injection hole 13 provided at the center of the container body top wall 7 and is urged upward from the upper end. It is a known mechanism configured to protrude a stem 15 so as to be able to move up and down, and to open a valve provided by pushing down the stem 15, and in this embodiment, it is fitted and fixed to a cap-shaped member 16. The cap-like member 16 is attached to the container body 2 by being screwed into a screw cylinder protruding from the upper surface of the top wall of the container body. Incidentally, 17 indicates a packing. A push-down head 18 having a spray or jet nozzle of a known mechanism is fitted and fixed to the upper end of the stem 15 of the valve 4.

The pressurizing cylinder 5 has an irregularly shaped cylindrical base 19 whose upper end is closed and whose upper and lower end surfaces are closed, and upper and lower parts fixed to the outer periphery of the reduced diameter part of the upper part of the base 19 project outward in a skirt shape. A cylindrical sliding portion 20, the outer periphery of the sliding portion 20 is airtightly and slidably fitted to the lower portion of the inner surface of the container body peripheral wall 6 in the lower chamber 10, and the large diameter portion of the base 19 is It is mounted so that it can be pushed in by protruding downward from the lower end opening of the body 2. Also, a ridge provided on the upper end of the outer periphery of the large diameter portion is locked to a ridge provided on the lower end of the container body peripheral wall 6 so that it cannot be pulled out. The pressure cylinder 5 is constantly urged downward by a coil spring 21 interposed between the upper surface of the mounting base of the sliding portion 20 and the lower surface of the partition wall 8.

A through hole 22 is formed in the center of the partition wall 8,
A first check valve 24 is formed by providing a valve plate 23 for closing and opening the through hole 22 so as to be able to open and close.
The check valve 24 is opened so that air is pressed into the upper chamber 9 from the lower chamber 10.

A through hole 25 is formed in the center of the base top wall of the pressure cylinder 5.
And a second check valve 27 is formed by providing a valve plate 26 for closing and opening the through hole 25 so that the through hole 25 can be opened and closed. The pressurized cylinder 5 pushed in moves outward by the downward biasing force of the spring 21. In this case, the second check valve 27 is opened so that the outside air enters the lower chamber 10 through the pressurizing cylinder 5. Reference numeral 28 denotes a through hole for air intake formed in the center of the bottom wall of the base 19 .

[0017]

As described above, the container of the present invention has the above-described structure, so that it is possible to satisfactorily pour out spraying and jetting of the cap without using Freon gas.

[0018] A partition wall having a first check valve is provided.
Pressurized cylinder having a movable bottom wall in the upper chamber and a second check valve in the lower chamber
Is provided, it is possible to prevent the upper chamber once pressurized from being depressurized other than by discharging the liquid as much as possible, and to surely pressurize the liquid. Further, since the air pressurized into the upper chamber does not directly contact the stored liquid, it is extremely convenient when storing a liquid that does not like to be in contact with the air.

Further, pressurization can be performed by a very simple operation of pushing the pressurizing cylinder, and liquid can be poured out only by pushing down the head, so that handling is extremely convenient.

[Brief description of the drawings]

FIG. 1 is a half sectional view showing an embodiment of the present invention.

FIG. 2 is a half sectional view showing a state in which the pressurizing cylinder of the embodiment is pushed in.

[Explanation of symbols]

 2 container body 3 movable bottom wall 4 aerosol valve 5 pressurizing cylinder 8 partition wall 9 upper chamber 10 lower chamber 15 stem 18 push-down head 24 first check valve 27 second check valve

Claims (1)

(57) [Scope of request for utility model registration] 1. A cylindrical container body 2 having an opening at a lower end surface defined by an upper chamber 9 and a lower chamber 10 through a partition wall 8, and an inner surface of a peripheral wall of the upper chamber 9. A movable bottom wall 3 whose outer peripheral edge is fitted to the lower part so as to be liquid-tight and slidable;
Aerosol valve 4 of a push-down valve type in which a pouring hole 13 provided in the center of the top wall 7 is openably and closably open, and a push-down head fitted to the upper end of a stem 15 projecting upward and downward on the valve 4. 18 and an outer peripheral upper part is fitted to the lower part of the inner surface of the lower wall of the lower chamber 10 in an outwardly biased state in an airtight and slidable manner, and the lower end part is protruded from the lower end opening of the lower chamber 10 so that it can be pushed in and can not be pulled out . And a first check valve 24 that is opened when the pressurizing cylinder 5 is pushed into the partition wall 8. A liquid dispensing container characterized in that a second check valve 27 is provided on the top wall to open when the cylinder 5 moves outward.