JPH0343162Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a spout plug that is attached to the mouth of a container such as a can or a synthetic resin container for storing liquid or the like.

``Prior Art'' As shown in Fig. 1, a conventional spout stopper is molded from a soft synthetic resin material and has a mounting part 3 that is attached in a sealed manner to a can mouth part 2 formed on a top plate 1 of the can. Spout plug body 4 and this spout plug body 4
a caulked metal attachment ring 5 that fixes the attachment part 3 to the can mouth part 2; and a spout 6 that is integrally molded with the spout stopper body 4 and serves as a pouring spout.
and a cap 8, which is made of metal and is integrally molded with a puller 7 that covers the attachment ring 5 and is screwed into the tip of the spout 6. This resulted in the following drawbacks.

1. After the spout stopper main body 4 is pushed into the can opening part 2 and the attachment part 3 is engaged with the can opening part 2, the outer circumference of the attachment part 3 is covered with a metal attachment ring. Thereafter, the attachment ring 5 must be caulked using a casino machine to fix the attachment portion 3 of the spout stopper body 4 to the can mouth portion 2. Therefore, a crimping machine is required, and the work of attaching it to the can opening 2 is also time-consuming.

2.Recently, the thickness of cans has become thinner in order to reduce costs and prevent excessive strength.In the case of thinner plates, if the crimping machine that crimps the mounting ring 5 is not used accurately, the can There is a problem that part 2 is crushed.

3. Since the metal mounting ring 5 is caulked and used, even if it is plated, it is easily damaged and rusted when caulked.

4 Metal mounting ring 5 by cap 8
Therefore, after removing the cap 8, the spout body 4 must be attached to the can opening 2 and caulked with the ring 5, and then the cap 8 must be screwed onto the spout 6. Cap 8 must be removed. For this reason,
They have to be packaged separately, making delivery difficult.

``Purpose of the present invention'' In view of the above-mentioned conventional drawbacks, the present invention provides a spout plug that can be fitted and fixed to the spout stopper attachment part of a container extremely easily, and can be reliably sealed without using a crimping machine. You can get cheap spout plugs.

"Means for Achieving the Object of the Present Invention" The present invention provides a spout stopper mounting portion having a circular ring-shaped protrusion integrally formed on the top plate of a container and having an outer lower end as an end; The outer upper wall is attached in a sealed manner to the mounting part, and the outer upper wall has a groove that makes it easier to bend the outer piece, and the lower part of the outer wall has a tapered ring mounting part with a larger diameter. The spout body is molded from a synthetic resin material, and the spout body is molded integrally with the spout body, and when closed, the half cross-sectional shape is bent into a U-shape and stored inside, and when opened, it is pulled out to form a spout. A spout, a cap removably attached to the tip of the spout, and a cap that covers the outer periphery of the attachment part of the spout body and fits into the protrusion of the spout attachment part by pressing against the spout attachment part. It is characterized by comprising a mounting ring molded from a metal material that is fixedly fitted and has a hollow ring-shaped bent portion on the lower side wall that can engage with the end of the protrusion of the spout plug mounting portion.

"Embodiments of the Present Invention" The present invention will be described in detail below with reference to embodiments shown in FIGS. 2 to 19.

In the embodiments shown in FIGS. 2 to 5, reference numeral 11 denotes a spout stopper attachment part formed on the top plate 12 of a container such as a can, and this spout stopper attachment part 11 is formed by bending the tip of the opening toward the upper outer side. The protrusion 13 is formed into a ring-shaped protrusion 13. Reference numeral 14 denotes a spout plug body molded from a soft synthetic resin material that is fitted into the spout plug attachment portion 11, and is engaged with the protrusion 13 of the spout plug attachment portion 11 on the approximately central outer periphery of the spout plug body 14. A mounting portion 15 is formed. Further, the outer wall 17 of the ring attachment portion 16 of the spout plug body 14 is formed in a tapered shape such that the lower portion has a larger diameter. A groove 19 is formed in the upper outer wall of the mounting portion 15 to facilitate the deflection of the outer piece 18. Furthermore, a plurality of protrusions 21 are formed on the outer periphery of the distal end of the insertion portion 20 of the spout plug body 14 to prevent it from falling off from the spout plug attachment portion 11. Reference numeral 22 designates a spout that is integrally molded with the spout stopper main body 14 and is stored inside with its half cross-sectional shape bent into a substantially U-shape when closed, and is pulled out to serve as a spout when opened. The portion 23 serving as the bending portion is formed into a thin shape.

Also, a threaded portion 24 is provided on the outer periphery of the tip of the spout 22.
is formed. Furthermore, a finger ring 2 is provided on the opening side of the spout 22 to seal the opening.
5 is integrally molded with a thin wall portion 27 interposed therebetween. 28 is the spout plug body 14
This mounting ring 28 is a half-shaped mounting ring formed of a metal material that covers the outer periphery of the ring mounting portion 16 and fits and fixes the ring-shaped protrusion 13 of the spout plug mounting portion 11 by pressing. The lower part of the ring main body 28a, which has an inverted L-shaped cross section, is curled inwardly 28b, and then a hollow ring-shaped bent part 28c is formed on the outer side. 29 is a threaded portion 30 that is screwed into the threaded portion 24 of the spout 22;
The cap 29 has a puller 31 on its outer periphery that can be bent inward from both sides.
The outer diameter of the pull member 31 is formed to be slightly smaller than the inner diameter of the attachment ring 28. In addition, the spout 22 formed on the inner surface of the outer periphery of the cap 29 when closed.
A blocking piece 33 that comes into pressure contact with the root of the spout 22 to prevent water, dirt, etc. from entering the recess 32 of the spout 22.
is integrally molded. Further, a recessed groove 34 is formed on the inner surface of the cap 29 at a portion corresponding to the tip of the spout 22, into which the tip of the spout 22 can be inserted for sealing. Furthermore, engagement recesses 35, 35 are formed on the upper surface of the cap 29 to engage with engagement claws of the automatic capper for screwing and fixing the cap 29 to the spout plug body 14 by the automatic capper. Note that the root portion of the spout is formed to have a thin wall 23a, and is configured to be easily deformed.

"Operation of the embodiment of the present invention" In the above structure, the threaded part 30 of the cap 29 is screwed and fixed to the threaded part 24 of the spout 22 of the spout main body 14, and the spout plug of the container is integrated. After inserting and engaging the attachment portion 11, the attachment ring 28 is placed over the ring attachment portion 16 of the spout plug body 14 with the cap 29 still attached, and then pressed. Due to this pressing force, the outer piece 18 of the attachment part 15 of the spout body 14 is bent toward the center by the groove 19 of the outer upper wall, and the protrusion 13 of the spout attachment part 11 of the container and the inner wall of the attachment ring 28 are bent. It is held in an elastic state between the two. Further, the attachment ring 28 is pushed in while expanding, and is firmly fitted to the lower part of the protrusion 13 of the spout plug attachment portion 11 of the container due to the spring back of the ring-shaped bent portion 28C.

In this way, the spout plug attachment part 11 of the container
The spout plug 36 attached to the second
It is now in the state shown in the figure.

Next, in order to open the cap, the handle 31 of the cap 29 is bent inward from both sides and pulled, so that the spout 22 forms a spout shape as shown in FIG. After the spout 22 is in this state, the cap 29 is rotated and removed from the spout 22 as shown in FIG. In this state, by hooking a finger on the finger ring 25 and pulling it, the thin wall portion 27 can be cut and the sealing body 26 can be cut off to open the opening.

"Different Embodiments of the Present Invention" Next, different embodiments of the present invention shown in FIGS. 6 to 19 will be described. In the description of these embodiments, the same components as those of the embodiments of the present invention will be designated by the same reference numerals and redundant explanations will be omitted.

The main difference between the embodiment of FIG. 6 and the embodiment of the present invention is that the spout plug is attached by bending the tip of the opening of the container inward toward the upper part to form a ring-shaped projection 13B. Since the spout plug 36 is attached to the portion 11B, the spout plug 36 can be similarly attached to the spout plug attachment portion 11B configured in this manner.

The embodiment shown in FIG. 7 is mainly different from the embodiment of the present invention in that engagement recesses 35A, 35A are formed near the center of the upper surface of the cap 29 to engage with the engagement claws of the automatic cap. Even with this configuration, the cap 29 can be automatically screwed and fixed to the threaded portion of the spout by the automatic capper.

The main difference between the embodiment shown in FIG. 8 and the embodiment of the present invention is that a sealing body 26A that can be opened by cutting is provided at the tip of the spout 22. The spout stopper 36A can be similarly attached to the spout stopper attachment portion 11 of the container.

The main difference between the embodiment of FIG. 9 and the embodiment of the present invention is that the threaded portion of the spout 22 is designed so that the inner wall of the spout plug body 14 and the outer wall of the cap 29 fit together when the spout plug 36B is closed. 24 and the threaded portion 30 of the cap 29, this configuration prevents the cap 29 from protruding due to pressure being applied inside the container when the container is closed. This can be reliably prevented.

The embodiment shown in FIGS. 10 and 11 is mainly different from the embodiment shown in FIG.
9 and the puller 3 of the cap 29.
Even with this configuration, protrusion of the cap 29 due to the internal pressure of the container can be reliably prevented since the engaging pieces 40, 40 that engage with the flange portion 39 are formed at the tip of the root portion of the container.

The embodiment shown in FIG. 12 is mainly different from the embodiments shown in FIGS.
1, even with this configuration, the 10th
The same effects as the embodiments shown in FIGS. and 11 can be obtained.

The embodiment shown in FIG. 13 is mainly different from the embodiment of the present invention in that the upper surface of the cap 29 is higher than the upper surface of the mounting ring 28 when closed, and a protrusion 42 is provided on the upper outer periphery of the pull handle 31.
With this configuration, the pull tab 31 can be easily grasped and bent upward.

The main difference between the embodiment shown in FIG. 14 and the embodiment of the present invention is that there is a gap 43 between the top outer circumference of the pull handle 31 and the inside of the mounting ring 28, into which a finger, screwdriver, etc. can be inserted. , 43 are formed on the outer periphery of the top of the pull handle 31.
4, the pull handle 31 can be easily pulled out even with this configuration.

The main difference between the embodiment of FIG. 15 and the embodiment of the present invention is that the puller 31 can be easily attached to the mounting ring 28 and the ring engaging portion 16 of the spout plug body 14 into which the mounting ring 28 is fitted. This is because a plurality of recesses 45 and 46 are formed for pulling out.

The embodiment shown in FIG. 16 is mainly different from the embodiment of the present invention in that the attachment ring 28 is fitted and fixed in advance to the ring engaging portion 16A of the spout plug body 14. It may be configured as follows.

The main difference between the embodiment shown in FIG. 17 and the embodiment of the present invention is that a prevention piece 47 is integrally molded into the sealing body 26 and comes into contact with the inner wall surface of the cap 29 to prevent the sealing body 26 from breaking. With this configuration, even if pressure is applied to the sealing body 26 due to the internal pressure of the container, the prevention piece 47 comes into contact with the inner wall surface of the cap 29 to prevent its movement, and the thin wall portion 27
Breakage can be more efficiently prevented.

The main difference between the embodiment shown in FIG. 18 and the embodiment shown in FIG. This embodiment has the same effect as the embodiment shown in FIG. 17.

The main difference between the embodiment shown in FIG. 19 and the embodiment shown in FIG. Even if it is a closed body 2
6 can be prevented from breaking.

"Effects of the Present Invention" As is clear from the above explanation, the present invention has the following effects.

(1) Insert the spout stopper body into the spout stopper attachment part that has a circular ring-shaped protrusion whose end is the outer lower end that is integrally molded on the top plate of the container, and engage the attachment part of the spout stopper body. After that, when the metal attachment ring is pressed, the ring-shaped bent part of the attachment ring is pressed against the lower part of the protrusion of the spout plug attachment part of the container due to the spring back of the hollow ring-shaped bent part of the lower side wall. In addition to being firmly fitted and fixed, the end of the protrusion of the spout plug attachment portion engages with the ring-shaped bent portion of the fitted and fixed attachment ring, thereby reliably preventing the attachment ring from coming off.

Therefore, it is easy to attach the metal attachment ring to the spout attachment portion, and after attachment, the attachment ring can be prevented from coming off from the spout attachment portion in the same way as conventional caulking.

(2) Due to (1) above, the spout plug can be fitted and fixed to the spout plug mounting portion of the container using the metal mounting ring without using a crimping machine as in the past, improving work efficiency. In addition, it is possible to reduce costs without producing defective products depending on the condition of the crimping work.

(3) By pressing the metal attachment ring, the outer piece of the attachment part of the spout body is bent toward the center by the groove on the outer upper wall, and is attached to the protrusion of the spout attachment part of the container. It is held in elastic contact with the inner wall of the ring. Therefore, the contents can be reliably sealed to prevent leakage.

(4) By pre-engaging the metal mounting ring with the ring mounting part of the spout body, it is possible to install from above the cap even if the outside diameter of the cap is about the same as the outside diameter of the mounting ring. By pressing the ring, the spout plug can be fitted and fixed to the spout plug attachment portion of the container. Therefore, there is no need to remove the spout body and cap in preparation for attaching the spout as in the past, and packing and parts management can be facilitated.

(5) Since the spout plug mounting part is integrally molded on the top plate, even if the metal mounting ring is pushed in with great pressure, the conventional top plate and spout plug mounting part are formed separately. It is possible to reliably prevent the spout plug attachment part from falling off from the top plate.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway cross-sectional view showing a conventional embodiment;
FIG. 2 is a partially cutaway cross-sectional view showing an embodiment of the present invention;
Figure 3 shows the state with the spout pulled out, Figure 4
The figure is a partially cutaway view showing the state with the cap removed.
Figure 5 is a plan view of the cap, Figures 6, 7, 8, 9, 10, 11, and 12.
Fig. 13, Fig. 14, Fig. 15, Fig. 16,
FIG. 17, FIG. 18, and FIG. 19 are explanatory views showing different embodiments of the present invention, respectively. 11, 11B... Spout plug attachment part, 12...
...Top plate, 13, 13B...Protrusion, 14...Spout plug body, 15...Mounting part, 16...Ring mounting part, 17...Outer wall, 18...Outer piece, 19
... Concave groove, 20 ... Insertion part, 21 ... Projection piece, 22
... Spout, 23 ... Part that will be bent, 24
...Screw part, 25...Finger ring, 26, 26
A... Sealed body, 27... Thin wall portion, 28, 28A~
28D...metal mounting ring, 29...cap, 30...screw part, 31...handle, 32...
Concave portion, 33...Blocking piece, 34...Concave groove, 35,3
5A...Engagement recess, 36, 36A, 36B...Spout plug, 37, 38...Threaded part, 39...Flange part, 40...Engagement piece, 41...Flange part,
42... Protrusion, 43... Gap, 44... Notch, 45... Recess, 46... Recess, 47, 47A
...Prevention piece.

Claims (1)

[Claims for Utility Model Registration] 1. A spout stopper attachment part having a circular ring-shaped protrusion whose end is the outer lower end integrally formed on the top plate of the container, and a spout stopper attachment part that is sealed in a sealed state. Molded from a soft synthetic resin material, the outer upper wall has a mounting section with a concave groove to facilitate the deflection of the outer piece, and a tapered ring mounting section with a larger diameter at the bottom of the outer wall. A spout main body, a spout that is integrally formed with the spout main body and is bent so that its half cross-sectional shape becomes approximately U-shaped when closed and is stored inside and pulled out to become a spout when opened, and a tip of the spout. a cap that is removably attached to the spout plug body, and a cap that covers the outer periphery of the attachment portion of the spout plug body and is fitted and fixed to the protrusion of the spout plug attachment portion by pressing the spout plug body; A spout plug comprising a mounting ring molded from a metal material and having a hollow ring-shaped bent portion on a lower side wall that can engage with an end of a projection of a spout plug mounting portion. 2. The spout stopper according to claim 1, which is a registered utility model, characterized in that a portion that becomes a bent portion when the spout is closed is formed in a thin-walled shape. 3. The spout plug according to claim 1 or 2, wherein the cap has an outer dimension smaller than an inner diameter of the mounting ring. 4 Utility model registration claims 1 to 4, characterized in that a blocking piece is integrally molded on the inner surface of the outer periphery of the cap to prevent water, dirt, etc. from entering into the recess formed when the spout is closed. The spout plug according to any of item 3. 5. A utility model according to any one of claims 1 to 4, characterized in that the ring-shaped bent portion of the attachment ring is curled inward and then bent outward into a ring shape. spout plug.