JPS5822960Y2 - Container liquid pouring tool - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a liquid dispensing device that is used by being screwed into a container made of cardboard or thin synthetic resin.

Recently, containers for milk, juice, etc. are made of cardboard or thin synthetic resin.

Several types of liquid dispensing tools are already known, which are screwed into a container to dispense the liquid contained therein.

However, with all conventional liquid dispensing tools of this kind, the amount of liquid dispensed is inconsistent, either because the amount of the liquid inside the container is small, or it comes out too forcefully, and the joint between the container and the liquid dispensing tool is defective. However, there were disadvantages such as leakage and residual liquid in the container.

The present invention was made to improve these drawbacks, and it includes not only the spout hole but also the air hole separated by a wall, and the spout hole and air hole are connected to each other between the valleys of the male thread. It has a communicating opening in the hole, and the pitch of the male thread is coarse at the tip and close at the flange side.

Therefore, regardless of the amount of liquid in both containers, a constant amount is always poured out, and the projecting holes in the containers are folded back neatly around the edges to ensure a secure fit, so there is almost no leakage.

Next, an embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a cylindrical body made of hard plastic or the like, and a flange 2 is integrally formed on the outer circumference of the cylindrical body 1, and a male screw 4 is provided in a conical part 3 at the tip of the flange 2.
Furthermore, a sharp piercing blade portion 5 is provided at the tip.

A plurality of piercing blade portions 5, specifically four, are formed radially in the axial direction, and the radius of curvature between the piercing blade portions 5 is gradually increased toward the male thread 4 side.

The pitch of the male thread 4 is coarse at the tip and gradually becomes denser toward the flange side.

Inside the cylindrical body 1, an air hole 6 and a spout hole 7 are provided in the axial direction.
are separated by a wall 8 and open at the end face opposite to the male thread 4.

The end of the cylindrical body 1 is slanted so that the spout hole 7 side protrudes to facilitate pouring out the liquid.

One communication hole 9 communicating with the air hole 6 is bored in the valley of the male screw 4, and a plurality of communication holes 10 communicating with the spout hole 7 are bored therein.

A communication hole 10 with this spout hole 7 is bored close to the flange 2.

A rubber or other gasket 11 is fitted on the male thread 4 side facing the flange 2.

To attach the liquid dispensing tool configured in this manner to the container 12, first, the piercing blade portion 5 at the tip is pierced into the shoulder of the container 12, and a cross-shaped cut as shown in FIG. 3a is formed. When it is further penetrated, it opens into a roughly rectangular shape as shown in Figure 3.

Next, when the cylindrical main body 1 is screwed in, the male thread 4 is screwed into the notch 13, and the folded piece 14 of the notch 13 is folded back inward.

The pitch is coarse at first and gradually becomes denser, so the folded piece 14
It is gradually folded in half from about 90 degrees, and finally it is folded to almost 180 degrees, and cut 13 is the third fold.
It will become a beautiful circle as shown in Figure C.

The folded piece 14 is securely held over the entire circumference by the male screw 4 and the packing 11.

After the dispensing tool is attached, when the liquid 15 in the container 12 is poured out, air enters the container 12 through the air hole 6 and the communication hole 9, so that air does not enter from the spout hole 7 side.

Since the present invention is constructed as described above, when pouring out the liquid, air enters the container 12 through the air hole 6 and the liquid 15 is poured out through the pouring hole 7.

Therefore, even if the spout hole 7 is completely filled with liquid 15, air will not flow backward through the same spout hole 15 as in the conventional case, and a constant amount of liquid 15 will always be poured out.

In addition, since the pitch of the male thread 4 is coarse at the tip and dense on the flange 2 side, the folded piece 14 of the notch 13 of the container 12 is formed neatly, and the pitch between the flange 2 or packing 11 and the male thread 4 is ensured. It is tightly adhered to the joints and does not leak.

Furthermore, since the communication hole 10 with the pouring hole 7 is bored close to the flange 20, there is an excellent effect that no liquid remains in the container 12.

[Brief explanation of the drawing]

The figure shows an embodiment of the liquid dispensing device according to the present invention.
Figure 1 is a partially cutaway front view. Figure 2 is a plan view. Figures 3a, 1) and 3c are explanatory views of the notched state when the container is installed. FIG. 4 is a sectional view of the device attached to the container. 1...Tubular body, 2...Flange, 3
...Conical part, 4...Male thread, 5...
...Piercing blade part, 6...Air hole, 7...
... Outlet hole, 8 ... Wall, 9 ... Communication hole, 10 ... Communication hole, 11 ... Packing, 12 ... ... Container, 13... Cut,
14... Folded piece, 15... Content liquid.

Claims (1)

[Scope of utility model registration request] A male thread is provided on the conical part at the tip of the flange of the cylindrical body,
A sharp piercing blade is provided at the tip of this male screw, and an air hole and a spout hole are provided in the cylindrical body on the side opposite to the male screw and separated by an internal wall, and between the male screw A communication hole to the air hole and a communication hole to the spout hole are bored in the valley from the tip of the male screw to the vicinity of the flange, and the pitch of the male screw is coarse at the tip and dense on the flange side. A liquid dispensing tool for a container, characterized in that a gasket is interposed on the male screw side facing the container.