JPH0228833Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of the shoulder portion of a liquid container such as a magic bottle. Generally, in this type of container, a shoulder body 2 is placed on the upper part of a body 1 as shown in FIG.
However, a liquid passage 5 leading to a spout 4 is provided on one side, and a flap 6 that can be opened and closed is pivotally supported on the spout 4. Note that a stopper (not shown) is screwed into the injection port 3. 7 is the middle bottle of the magic bottle.

By the way, the shoulder body 2 of this type of container is usually separated into a shoulder body 8 and a shoulder cover 9, and the shoulder body 2 is formed by fitting or screwing these together. Firstly, the reason for this is that the liquid passage 5 is connected to the shoulder body 2.
Since it has a tubular shape that communicates with the inside and outside, if you try to mold it as one piece, you will not be able to remove the mold.
Although this may be possible if the injection port is designed to have a particularly large diameter, it is still undesirable since there are restrictions on the shape of the liquid passage 5. The second reason is that if the shoulder body 8 and the shoulder cover 9 are integrally molded, it is extremely difficult to attach the flap 6.

For this reason, the shoulder body 8 and shoulder cover 9 are usually molded separately and then fitted together to form an integrated shoulder body 2. Separate parts complicate the structure of the parts, leading to increased costs. Not only that, when the inner surface of the shoulder body 2 gets wet when the liquid is injected or poured out, the water leaks from between the shoulder body 8 and the shoulder cover 9 into the space between the shoulder body 2 and the body 1.
Depending on the structure of the container, it could accumulate at the bottom of the container and cause the inner surface of the body 1 to rust.

The present invention was developed in view of the above circumstances, and the shoulder body 2 is formed integrally, and only the liquid passage 5 is formed by adding a separate small part, thereby solving the above-mentioned drawbacks. It was a success.

The present invention will be explained below with reference to the drawings. FIG. 2 shows an embodiment of the present invention, and 2 is a shoulder body. This shoulder body 2 is similar to the shoulder body 8 in the conventional example.
It has a shape that integrates the shoulder cover 9 and the shoulder cover 9,
It has a short cylindrical wall surface 10 at its upper end, a horizontal section 11 is formed inward from its lower end, and a screw wall into which a stopper (not shown) is screwed downward from its inner periphery. 12 are provided. A liquid passage groove 13 is formed on one side of the shoulder body 2 by cutting out the wall surface 10, the horizontal part 11, and the screw wall 12, respectively.
communicates with a spout 14 protruding from the outer periphery of the wall surface 10, the tip of which forms the spout 4.

A vertical wall 15 is formed between the ends of the wall surface 10 across the liquid passage groove 13, a slit 16 with an open upper end is formed in the center of the vertical wall 15, and a locking step 17 is formed on the inner surface. It is provided. Further, reference numeral 18 is a flap bearing recess, which is provided at the upper end of the spout 4.

A stepped portion 19 is formed at the end of the horizontal portion 11, and an engaging protrusion 20 is provided protruding from the end surface.

21 is a liquid passage cover, and the wall cover part 2
2 and the horizontal cover part 23 have a substantially L-shaped cross section, and the top part 24 is located at the upper end of the wall cover part 22.
are placed together. A presser plate 26 is provided at the center of the front surface of the wall cover portion 22 via a connecting plate 25, and locking claws 27 are protruded from both sides of the presser plate 26. Reference numeral 28 denotes an engagement recess formed in the side end surface of the horizontal cover portion 23.

To assemble this shoulder member, first, the pivot portion of the flap 6 is fitted into the flap bearing 18, and the flap 6 is rotatably supported by the flap bearing 18. Next, the liquid passage cover 21 is attached to the upper part of the liquid passage groove 13. By inserting the connecting plate 25 of the liquid passage cover 21 into the slit 16 of the vertical wall 15 from above and engaging the locking pawl 27 with the locking step 17 and the engagement recess 28 with the engagement protrusion 20, the liquid is removed. The passage cover 21 is attached to the upper part of the liquid passage 13. When the liquid passage cover 21 is attached, as shown in FIG. , forming a continuous and integral horizontal part, and a tunnel-like liquid passage 5 is formed in the lower part thereof. In addition, the wall cover portion 22 holds the vertical wall 15 between it and the holding plate 26,
It is fitted between the notches in the wall surface 10 to form a continuous and integral wall surface. Moreover, the top 24 covers with its underside the upper part of the flap bearing 18, retaining the flap 6 within the flap bearing 18 and providing the upper edge of the shoulder body 2 with a continuous, integral formation.

According to the present invention, the shoulder body 2 is integrally molded as a whole except for the upper part of the liquid passage 5, so the structure of the mold is simple and molding is easy, and the shoulder body and the shoulder cover are fastened with screws. Since there is no need to connect the parts by means of, etc., there is no need for assembly. Furthermore, since only the upper part of the liquid passage 5 is separate, a constant shape can be ensured over the entire circumference, and the flap 6 can be easily attached. Furthermore, even if water seeps into the joint between the shoulder body 2 and the liquid passage cover 21, the water will not leak out of the shoulder body 2, and the body etc. will not rust.

Furthermore, if the liquid passage groove 13 is simply formed in the shoulder body 2, when the hot water content is poured out, the inner surface of the liquid passage groove 13 will be rapidly heated, the groove will deform and expand, and the flap 6 will fall off. there's a possibility that. However, in the present invention, the vertical wall 15 is integrally formed in the part of the liquid passage groove 13 that is continuous with the wall surface 10, and the flap bearing 18 is formed near the vertical wall 15. The flap 6 does not spread even when heated, and there is no fear that the flap 6 will fall off. Further, even if an external force is applied to the spout 4 or the liquid passage groove 13 due to an impact or the like, the liquid passage groove 13 will not be deformed and expanded, and the flap 6 will not fall off.

[Brief explanation of drawings]

FIG. 1 is a central vertical sectional view of a conventional ball bottle with a shoulder body attached thereto. FIG. 2 shows one embodiment of the present invention, and is a perspective view of the main part of the shoulder body and the liquid passage cover. FIG. 3 is a perspective view of the main parts of the present invention in an assembled state. 2...Shoulder body, 4...Spout, 5...Liquid passage, 6...
...Flap, 13...Liquid passage groove, 18...Flap bearing, 21...Liquid passage cover.

Claims (1)

[Scope of utility model registration request] A short cylindrical wall surface is formed at the upper end of the shoulder body, and a liquid passage groove with an open upper side is provided on one side of the shoulder body, and a liquid is formed between the ends of the wall surface cut by the liquid passage groove. A vertical wall is integrally formed across the passage groove,
The tip of the liquid passage groove is used as a spout, a flap bearing is carved on the inner surface of the upper side of the spout and near the vertical wall, a flap is rotatably supported on the flap bearing, and the liquid is poured into the spout. The upper part of the passage groove is covered with a liquid passage cover, and the upper part of the flap bearing is closed by the tip of the liquid passage cover,
Container shoulder structure.