JPS6014720Y2 - Container liquid pouring tool - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a liquid dispensing tool 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.

In addition, several types of liquid pouring tools are already known, which are screwed into a container to pour out the liquid contained therein.

However, with conventional liquid dispensing tools of this type, it is often necessary to insert them into the container excessively, and the screwing process is not always smooth when installing them.
There was a drawback that when the container was installed, the puncture holes made in the container were not uniform, so there was a high risk of liquid leakage.

The present invention was made to improve these drawbacks, and the lower end of the edge of the stabbing blade is made to protrude from the outer peripheral surface of the annular edge of the truncated conical part, and the outer periphery of the annular edge of the truncated conical part is shaped like a crescent. The sloped surface is chamfered, at least one of which is smaller than the other, and the acute angle between the lower edges of the piercing blade on the crescent-shaped sloped surface coincides with the beginning of the external thread. .

As a result, when the stabbing blade is inserted into the container, the protrusion at the lower end of the edge of the stabbing blade serves as an indicator of the amount of penetration, and since the beginning of the male screw is not aligned with the lower end of the edge, it is not possible to insert the container as before. The puncture hole will not open too much and will not cause fluid leakage.

Further, by making the starting part of the male thread invaginate into the puncture hole, screwing is made smooth and a uniform puncture hole is formed, thereby preventing liquid leakage.

Note that the crescent shape here refers not only to those in which the chord part is a straight line, but also to those in which the chord part is slightly curved (smaller than the other two in Figure 3).

An embodiment of the present invention will be described below based on the drawings.

Figures 1, 2, and 3 are a plan view, a front view, and a bottom view of the liquid dispensing device according to the present invention, respectively, and Figure 5 is a sectional view of the device attached to a container.

1 is a cylindrical main body made of hard plastic or the like, and 2 is a cap thereof.

The cylindrical main body 1 has a spout 3 shown in FIG. 5 cut out diagonally to facilitate liquid dispensing, and a flange 4 provided with alignment marks 4a as shown in FIG. 3 on the outer periphery of the base of the main body. Three ribs 5 are integrally formed in the longitudinal direction on the outer periphery of the main body between the flange 4 and the spout 3, and the convex fitting portion 2a of the cap 2 is attached to the ribs 5. is designed to fit.

A male thread 7 is provided on the outer periphery of the truncated conical portion 6 at the tip of the flange 4.
Furthermore, four sharp stabbing blades 8 are formed at the tip of the truncated conical part 6 in a tapered radial shape toward the central axis of the truncated conical part 6, so that the edges of the four stabbing blades 8 in second grade are formed. The lower end 8a of the piercing blade 8 protrudes laterally from the outer peripheral surface of the annular edge 6a of the truncated conical portion 6, and the lower edge 8b of the piercing blade 8 is the annular edge 6a of the truncated conical portion.
is divided into four categories.

A crescent-shaped inclined surface 6b is formed by chamfering the white bead of the divided annular edge on its outer periphery, and the remaining one is formed by blocking the side wall of the truncated conical portion close to the flange to form the inlet 9. A communicating port 10 is formed.

Note that the crescent-shaped inclined surface 6b is the annular edge 6a of the truncated conical portion.
are chamfered (that is, cut) at their outer peripheries, so they each have a crescent shape in plan view as shown in Figure 3, and they also have a crescent shape in front view (see Figure 2), right side view, and rear view. It is something that takes on a form.

One of the three crescent-shaped inclined surfaces is formed smaller than the other two, and the acute end of this crescent-shaped inclined surface becomes the starting portion 7a of the external thread 7.

In the vicinity of this starting portion 7a, a certain gap is formed between it and the lower end of the edge of the stabbing blade 8.

The pitch of the male thread 7 is coarser at the tip and gradually closer to the flange side.

A rubber or other gasket 11 is fitted onto the side of the male screw 7 corresponding to the flange 4.

To attach the liquid dispensing tool configured in this manner to the container 12, first, the piercing blade 8 at the tip is inserted into the shoulder of the container 12, and a cross-shaped puncture hole 13 as shown in FIG. 4a is created. It is formed.

At this time, the lower end of the edge 8a of the stabbing blade 8
Since it protrudes more horizontally, when the lower end of the edge enters the container, the piercing condition settles down, preventing unnecessary piercing and over-insertion, and also preventing the starting part 7a of the male thread 7 from matching the lower edge of the edge. Excessive pricking is also prevented by providing a certain interval.

After that, by pressing it a little further, the crescent-shaped inclined surface acts and opens into a substantially square shape as shown in Fig. 4.

At this time, since the starting part 7a of the male thread coincides with the acute end of the crescent-shaped inclined surface, it has already entered into the puncture hole.

Next, when the cylindrical body 1 is screwed in, the male screw 7 is smoothly screwed into the puncture hole 13 because the starting part 7a has already fallen into the puncture hole, and the folded piece 14 of the puncture hole 13 moves inward. It is turned back.

Due to the synergistic effect of preventing excessive penetration and smooth insertion of the male screw 7 into the puncture hole 13, uniform opening is achieved and liquid leakage is prevented.

Also, the pitch is coarse at first and gradually becomes denser, so the folded piece 1
4 is also folded at about 90 degrees, then gradually folded in half, and finally folded back to almost 180 degrees, and the puncture hole 13 is inserted into the fourth hole.
It will become a beautiful circle as shown in Figure C.

The folded piece 14 is securely held by the male screw 7 and the packing 11 over its entire circumference.

The rib 5 and the convex fitting part 2a of the cap 2 are useful for screwing the main body 1, and the connecting mark 4a is located above when the cylindrical main body is attached to the container, thereby opening the communication opening 1.
This is one guideline for locating 0 downward.

After the dispensing tool is installed, the liquid 15 in the container 12 is poured into the inlet 9.
The liquid is poured out from the communication port 10 via the spout 3.

[Brief explanation of drawings]

Fig. 1 is a plan view of the present liquid dispensing tool, Fig. 2 is a front view of the same, Fig. 3 is a bottom view of the same, and Figs. 4 a and b. C is an explanatory view of the puncturing state when the container is attached, and FIG. 5 is a sectional view of the state when the container is attached. 1...Tubular body, 2...Cap, 3
...Spout, 4...Flange, 5...
...Rib, 6...Frustoconical part, 7...
...Male thread, 8...Piercing blade, 9...
Inflow port, 10...Communication port, 11...Packing, 12...Container, 13...Puncture hole, 14...Folding piece , 15... Content liquid.

Claims (2)

[Scope of utility model registration request] (1) A male screw is provided on the outer periphery of a truncated conical portion at the tip of the flange of the cylindrical body, and a plurality of sharp piercing blades are provided at the tip of the truncated conical portion in a tapered radial manner toward its central axis. The lower end of the edge of the truncated conical part is made to protrude from the outer peripheral surface of the annular edge of the truncated conical part, and the annular edge of the truncated conical part is divided by the lower edge of the truncated conical part. The annular edge is chamfered into a crescent-shaped inclined surface on its outer periphery, and at the same time, at least one of the crescent-shaped inclined surfaces is formed to be smaller than the others, so that the external thread starts from the acute end between the lower ends of the edges of the piercing blade. A container liquid dispensing device characterized by: (2) A utility model registration request in which at least one of the side walls connected to the annular edge of the truncated conical portion divided by the lower edge of the stabbing blade is provided with a communication port that is blocked up to the vicinity of the flange and communicates with the inflow port. A liquid dispensing tool for the container described in Scope 1.