JPS6135908B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a container with a hard outer surface, such as a metal container, and a flexible container or an inner container containing one of the substances to be released, and the other substance is placed in the outer container. and an inner container together with pressurized or propellant gas, separated from each other and mixed if necessary. Containers of this type are intended, for example, to contain substances that react with each other in a separated manner until they are released.

Conventionally, there have been two types of valves used for such containers: The first one is called an external mixing valve, for example in Italian Patent Specification No. 900579 filed in the name of the applicant, where the mixing of two substances or components is What is made to occur in the passage is disclosed. The second type is called an internal mixing valve and is described in Italian patent specification no.
No. 854959 discloses that mixing occurs within the valve body.

External mixing valves require two valves, one discharge valve for each substance, and are therefore expensive and difficult to manufacture. On the other hand, internal mixing valves have the disadvantage that a considerable amount of the mixture produced by the reaction between substances remains within the valve body after the discharge operation is completed. This mixture is difficult to remove and thus inhibits or impedes the discharge operation of the valve.

The basic object of the invention is to provide an internal mixing valve which leaves very little mixture after the discharge operation and which can be easily removed.

A mixing discharge valve according to the present invention comprises a movable hollow stem and a closing member which is in close contact with an annular elastic gasket provided between a valve retaining cup and a valve body and which can be attached to a container. and a closure member are integrally formed, one of the walls of the integral formation being formed from a disk-shaped elastically deformable membrane located in the center and connected to the closure member having a plurality of passages. The opening of the passage formed in the closure member is located against the elastic gasket.

To enable rapid removal of residual mixture from the valve body, the hollow stem also acts as a lever with one end snapped onto the outer periphery of the cup or container.

The invention will be more clearly understood from the following detailed description, with reference to two preferred embodiments illustrated in the accompanying drawings. These embodiments are merely illustrative and are not intended to be limiting.

In FIGS. 1 and 2, reference numeral 1 indicates a metal container. The top of this container is formed with an opening surrounded by an edge or edge 2,
A metal cup 3 is attached to this edge portion by seam connection with a sealing gasket 4 interposed therebetween.

The outer periphery of this cup 3 forms a downward facing surface 5 which is snap-connected to the inside of the side surface 8 of the cap, generally indicated by the reference numeral 7, by means of continuous annular fingers 6. be done.

This cap 7 has two parallel linear surfaces and two
A central hole 9 formed by two opposing curved surfaces.
is provided. Lever-shaped hollow stem 10
is integrally formed with the cap from an elastically deformable plastic material. Specifically, one end of the lever stem 10 is connected to one of both ends of the hole 9 via a bridging member 11 provided on one of the curved surfaces forming the hole 9. Since the other end of the lever stem 10 is a free end, when a force is applied to the other end 12, the stem can rotate about this bridging member as an axis or a fulcrum.

The lever stem 10 is formed in its central part with an axially hollow extension 13, and the lower end of this extension is provided with a diametrical groove 14. This groove has two sections 15 having a predetermined length extending in the axial direction at both ends thereof.

The lower end of the extension member 13 reaches into the bottomed circular seat portion 16 provided in the closing member 17.

This closing member 17 has two diametrically opposed
Passages 18 and 19 are formed at the locations. This 2
The book passages are parallel to each other and their tops are each a conical or cap-shaped projection 20, as shown. This is to ensure complete sealing when the valve is in an inoperative state, as will be described later. Closing member 17
A tubular extension 21 is formed below the passageway 18 . This extension is formed with a ridge around the neck 22 of the flexible bag or container 23.
Slide it into place. Either a liquid or a viscous substance to be released is contained within this container. The other substance, also either liquid or viscous, is contained in the container 1a together with pressurized or propellant gas.

The closing member 17 is integrally formed with a disk-shaped thin elastic wall or elastic membrane 24 . A thick ring 25 is integrally formed on this elastic membrane along its outer periphery. Furthermore, inside this ring, a side member 26 is provided concentrically with the ring and pressed against an annular elastic gasket 27.

A gasket 27 surrounded by the ring 25 is pressed against the inner surface of the ridge 28 of the cup 3 when the ring is seamed by plastic working of the cup material.

This raised portion 28 has a hole 29 in its center.
It is provided to align with the hole in gasket 27. The aforementioned extension 13 extends through these two collinear holes and comes into frictional contact with the gasket 27.

If the mixture is to be discharged, the container is inverted and pressure is applied, for example to the end 12, in the direction indicated by arrow A. The lever stem 10 is a bridging member 11
The hollow extension part 13 is lowered by rotating using the hollow extension part 13 as a fulcrum. This lowering of the hollow extension causes the closure member 17 to
is separated from the gasket 27. This is because the disk-shaped wall 24 undergoes elastic deformation, and the two types of substances pass through the passages 18 and 19 to the gasket 27.
and the wall 24 into the chamber 30. It is then fed, at least partially mixed, through the grooves 14 and 15 to the axial bore 31 of the extension 13, from where it is discharged in a mixed state (see FIG. 2).

When the pressure is released, the parts of the valve return to the non-operating position shown in FIG. When in this non-operating state,
The capacity of the small chamber 30 will be considerably reduced. If some mixture remains in the grooves 14 and 15 and in the axial hole 31, the bits or With a tool such as a screwdriver, the grooves 14 and 15 and the seat part 1 are removed.
Can clean 6th grade.

The variant shown in FIG. 3 has an axially hollow extension 33 connected to the channel 19 on the underside of the closure member 17, into which the mixture can be discharged with the container upright or tilted. Like suction pipe 34
The second embodiment differs from the first embodiment only in that the two are slidably fitted.

The spacing foot member designated 36 is
It presses onto the edge 37 of the cup and holds the cap 7 against this edge. These spacing foot members are integral with the cap.

Although only two embodiments of the present invention have been described, many variations and modifications will readily occur to those skilled in the art, and all such variations and modifications should be considered to be within the scope of the present invention. .

[Brief explanation of the drawing]

Figure 1 is a sectional view of the valve installed in the container, which performs the discharge operation by turning it upside down.
The figure is an enlarged cross-sectional view of the valve in Figure 1 in the discharge state, and Figure 3 is a cross-sectional view of the valve attached to the container, which allows the discharge operation to be performed without inverting the container. It is. 1... Container, 3... Cup, 10... Stem,
13...Hollow extension part, 14, 15...Groove, 16...
... Seat portion, 17... Closing member, 18, 19...
Passageway, 20... Protrusion, 23... Container, 24...
Disk-shaped wall (membrane), 25...ring, 27...elastic gasket.

Claims (1)

[Claims] 1. Two types of pressurization consisting of a movable hollow stem and a closing member that is in close contact with an annular elastic gasket provided between the valve retaining cup and the valve body and that can be attached to the container. In a mixing discharge valve for a container that accommodates substances while keeping them physically separated from each other, the closing member and the valve body are elastically deformed into a disk shape and connected to a closing member provided in the center and having a passage formed therein. Valve, characterized in that the opening of the passage formed in the closing member, integrally formed with a possible wall, is placed against the gasket. 2. The valve according to claim 1, wherein the two passages provided in the closing member open at the ends of the projections on the closing member. 3. The valve is connected to the cup by connecting said disc-shaped wall at its outer periphery with a rigid ring, with the annular gasket resting against the protrusion or protrusion of the closing member. A valve according to range 1 or 2. 4. The valve according to any one of claims 1 to 3, wherein at least one of the passages is provided with a hollow protruding portion that connects with a flexible container or a suction pipe. 5. The closing member has a seat portion in the center,
5. A valve according to any one of claims 1 to 4, wherein the lower end of the hollow extension of the stem is at the seat. 6. The valve of claim 5, wherein at least one lateral groove and a plurality of axial grooves are formed in the lower end of the hollow extension. 7. The valve according to any one of claims 1 to 6, wherein the stem is formed to operate as a lever with one end snap-connected to the outer periphery of the cup or container as a fulcrum.