JPH0131145Y2 - - Google Patents

Description

[Detailed Description of the Invention] Field of the Invention The present invention relates to a bottle holder structure for a magic bottle in which the mouth of a medium bottle is held by a spout of a shoulder body via a mouth rubber.

Conventional technology and its problems Conventionally, as a bottle holder structure for a magic bottle, a cylindrical wall is hung below the sprue of the shoulder body, and a cap with a roughly L-shaped cross section is placed inside this cylindrical wall. However, it is known that the bottle opening of the medium bottle is inserted into the inside of a cylindrical wall so that the bottle opening of the medium bottle is elastically held in the vertical and horizontal directions via a rubber cap.

By the way, silicone rubber is generally used for the mouth rubber material due to heat resistance requirements, and it is about five times more expensive than the material for the shoulder body (for example, resin such as polypropylene), so it is important to make it as small as possible. is important in reducing costs. However, in the above structure, the cap rubber holds not only the upper surface of the mouth of the medium bottle but also the outer circumferential surface thereof, which increases the cross-sectional shape and becomes an obstacle to cost reduction.

Purpose of the invention The present invention was made in view of the problems of the conventional art, and its purpose is to provide a bottle holder structure for magic bottles that can reduce the cost by making the mouthpiece as small as possible. be.

Structure of the invention In order to achieve the above object, the present invention provides an annular projection on the lower surface of the inner end of the sprue part of the shoulder body, and
A cylindrical wall surrounding the annular protrusion is provided vertically on the lower surface of the sprue, and a plurality of notches are provided in the vertical direction on the cylindrical wall to provide elasticity in the inward and outward directions. A cap rubber is crimped between the ends of the bottle, and the outer periphery of the mouth of the medium bottle is elastically held by the cylindrical wall.

DESCRIPTION OF EMBODIMENTS FIG. 1 shows a magic bottle having a bottle holder structure according to the present invention, in which 1 is the main body of the magic bottle, 2 is a medium bottle, 3 is a shoulder body, and 8 is a sprue portion 4 of the shoulder body 3. The fitted inner stopper 9 is an air pump that sends air into the inner bottle 2 through the inner stopper 8.

At the inner end of the spout 4 of the shoulder body 3, an annular protrusion 5 projecting downward is provided as shown in FIG. A cylindrical wall 6 having an inner diameter approximately the same as the diameter is vertically provided. This cylindrical wall 6 has a plurality of notches 7 formed in the vertical direction as shown in FIG. 2, giving the cylindrical wall 6 elasticity in the outward and outward directions. Therefore, if the bottle opening 2a of the medium bottle 2 is inserted into this cylindrical wall 6,
The bottle opening 2a of the medium bottle 2 can be held with a lateral cushioning effect.

Reference numeral 10 denotes a cap rubber made of silicone rubber, which is interposed in a compressed state between the lower surface of the inner end of the sprue 4 and the upper surface of the inner end of the bottle spout 2a of the medium bottle 2. The portion 2a is held with a longitudinal buffering effect.
The cap rubber 10 is provided between the inner end of the sprue 4 and the inner end of the bottle spout 2a in this way.
This is to make the diameter of the bottle as small as possible, to reduce the amount of silicone rubber used, and to make the cap rubber 10 more tightly adhere to the inner surface of the bottle mouth portion 2a by tightening the medium bottle 2. The mouth rubber 10 has the shape shown in FIG. 3 in its natural state, and has a recess 11 on its upper inner surface that is in close contact with the outer circumferential surface and lower surface of the annular projection 5 of the sprue 4, and on its lower outer surface. It has a concave surface 12 that closely contacts the inner end of the bottle opening 2a of No. 2, and further has an annular tongue piece 13 hanging diagonally inward on the inner circumference. The inner diameter of the tip of the tongue piece 13 is smaller than the outer diameter of the inner plug 8, and the tip of the tongue piece 13 presses against the outer peripheral surface of the inner plug 8 to form a seal.
In particular, since the annular protrusion 5 is provided on the lower surface of the inner end of the sprue portion 4, it is possible to prevent the sprue rubber 10 from protruding inside the sprue portion 4 when the sprue rubber 10 is crimped.

Here, the function of the tongue piece 13 will be explained in detail with reference to FIG. 4. First, when the inner plug 8 is inserted into the sprue part 4, the lower end of the inner plug 8 touches the tongue piece 13, and the tongue piece 13
Since it bends outward, it can be inserted smoothly.
In the fitted state, the tongue piece 13 is in pressure contact with the outer circumferential surface of the inner stopper 8, so even if the bottle accidentally falls over, the tongue piece 13 will be bent by water pressure to the inner stopper 8 side and will stick tightly. Can prevent water leakage. Further, when the air pump 9 is operated, the internal pressure inside the medium bottle 2 increases, but this internal pressure causes the tongue piece 13 to bend in the same manner as described above and come into close contact with the medium stopper 8, thereby preventing air leakage. Therefore, there is no need for the stopper rubber that seals between the sprue and the inner stopper in conventional magic bottles, and costs can be further reduced.

Effects of the invention As is clear from the above explanation, according to the invention, a cylindrical wall that touches the outer periphery of the mouth of the medium bottle is vertically provided on the lower surface of the sprue of the shoulder body, and a plurality of notches are formed in this cylindrical wall. Since it is provided with elasticity in the inward and outward directions, the cylindrical wall of the shoulder body can perform the lateral buffering and holding function of the inner bottle, which conventional cap rubbers had. In other words,
There is no need to arrange a gasket around the outer periphery of the bottle mouth of the medium bottle, and it is only necessary to hold the inner end of the bottle mouth, so the cross-sectional shape of the cap rubber can be made small and can be constructed at low cost.
In addition, the cap rubber is crimped between the annular protrusion provided on the underside of the inner end of the spout of the shoulder body and the inner end of the bottle spout of the medium bottle, so even if the cap rubber is crimped strongly, the There is no risk of it protruding inside, and a reliable seal can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional side view of an example of a magic bottle having a bottle holder structure according to the present invention, Fig. 2 is a longitudinal sectional view of the shoulder body, Fig. 3 is a sectional view of the cap, and Fig. 4 is FIG. 2 is an enlarged view of the portion shown in FIG. 1; 2...Medium bottle, 2a...Bottle mouth, 3...Shoulder body, 4
... sprue part, 5 ... annular projection, 6 ... cylindrical wall, 7
... Notch, 8 ... Inner stopper, 10 ... Mouth rubber.

Claims (1)

[Scope of Claim for Utility Model Registration] In a bottle holder structure for a magic bottle in which the spout of a medium bottle is held by a spout on a shoulder body, an annular projection is provided on the lower surface of the inner end of the sprue on the shoulder body, and the lower surface of the sprue is A cylindrical wall surrounding the annular protrusion is vertically provided on the cylindrical wall, and a plurality of notches are provided in the vertical direction on the cylindrical wall to provide elasticity in the outward and outward directions, and the inner end of the bottle mouth of the medium bottle is connected to the annular protrusion. A bottle holder structure for a magic bottle, characterized in that a mouth rubber is crimped between the cylindrical walls and the outer periphery of the bottle mouth of the medium bottle is elastically held by the cylindrical wall.