JPH024056Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to bottle caps for bottles containing various liquids.

The inventor of this device had previously devised a nearly similar bottle cap and filed an application for utility model registration. (Jitsukai 59-
(No. 049650) Since this invention is an improvement on the above-mentioned invention, firstly, we will discuss the above-mentioned invention. In Fig. 1, a is a polyethylene resin pouring lid;
It has an endless fissure b, and its cylindrical portion c is accommodated in the inner surface of the cylindrical body e of the lid d made of polypropylene resin. f indicates an engaging protrusion. Further, g is an outer cover, and the outer cover g and the cylindrical body e are integrally formed by a hinge h. i is a drop-rotation prevention part that is longer and bent than the hinge h, and prevents the outer lid g from falling and rotating to cover the bottle opening when the contents of the bottle (not shown) are poured out. .

In this bottle lid, the pouring lid a is made of polyethylene, so the fissure b breaks easily, and the lid d is made of polypropylene resin, so the hinge h has good bending resistance.
However, when this bottle cap is placed in a hopper of a capping machine and used, the pouring cap a and the cap body d often come off due to collision with other bottle caps in the hopper. Also, when capping, please mark the arrow by the bottle opening.
When a force in the direction of Ae is applied, the spout lid a and the lid body d often come off, and the spout lid a may be damaged by the bottle mouth. This is thought to be because the cylindrical portion c and the cylindrical body e are separated from each other because the cylindrical body e is expanded by the capping.

This invention was made in order to solve the above-mentioned problems, and to describe the structure of this invention with reference to the drawings, in Figs. A cylindrical body 3 made of aluminum is closely attached to the outer periphery of the cylindrical part 1 of the polyethylene spouting lid 2, which has a torn part to serve as a through hole, formed by a fissure 13, and the cylindrical body is The engaged part 9 on the inside of the upper part of the body 3 is fitted into the groove-shaped engaging part 8 formed on the spouting lid 2, and the lower end of the cylindrical part 1 is made to protrude 11 outward in the radial direction. , the lower ends of the cylinders 3 are positioned on the protrusion 11 so as to be in planar contact with each other, and the lower ends of the protrusion 11 are placed on the protrusion 11 formed in the mouth of the bottle and facing outward in the radial direction. This bottle lid is characterized in that it is placed in plane contact with the bottle lid. In the figure, 12 is a protrusion (see Figure 4), 13 is an endless fissure, 14 is a tension ring, 15 is a knurling, 16 is an inner cylinder, 17 is a protrusion, and 18 is a bottle mouth (see Figure 5). ) is shown. The pouring lid 2 was made of polyethylene resin, and the lid 4 was made of polypropylene resin. As a result, the hinge 5 of the lid body 4 has good bending resistance, and the pouring lid 2 is formed so that it has good tearing resistance. In addition, since the polypropylene resin has higher heat resistance than polyethylene resin, the pouring lid 2
The bottle opening 18 may be slightly deformed during filling with heated liquid, etc.
Next, the fall/rotation prevention part 7 works to prevent this even if the fall/rotation prevention part 7 becomes so-called familiar to the user.
may be formed to be longer and bent than the hinge 5 as shown in FIG. 2, or as shown in FIG. The small protrusion 22 of the cylindrical portion 3 may be provided so as to slightly protrude into the rotation locus 21 of the cylindrical portion 20 .

As a result, when the bottle spout 18 is tilted to pour out the liquid inside the bottle (not shown), the opened outer lid 6 does not cover the bottle spout. Moreover, the protrusion 12 is
The cylindrical portion 1 is formed to be in close contact with the outer surface of the cylindrical portion 1, and when the bottle mouth is fitted, the cylindrical portion 1 is expanded outward, so that the protrusion 12 is pressed against the cylindrical portion 1, so that the cylindrical portion 1 and the cylindrical body 3 are in pressure contact, and as a result, the pressure contact between the outer periphery of the bottle mouth 18 and the cylindrical portion 1 is strengthened. Next, the annular protrusion 11 may be further bent downward to form a downward protrusion 23, as shown in FIG. The outer surface of the bottle mouth 18 is aligned with these annular protrusions 11 and protrusions 23, as shown in FIG.
By forming the structure as shown in FIG.
It is designed to prevent unauthorized attempts to pry open the bottle lid by inserting a fingernail or the like in between. Further, in this case, since the cylindrical portion 1 and the cylindrical body 3 form a double cylindrical portion, it is even more difficult to pry them open.

Note that the protrusion 12 is not shown in FIG. 1.

This device is constructed as described above, and the cylindrical body 3 of the outer lid 6 is provided in close contact with the outer periphery of the cylindrical portion 1 of the pouring lid 2 for most of its length in the vertical direction. The engaged part 9 on the inside of the upper part is fitted into the groove-shaped engaging part formed on the pouring lid 2, and the lower end of the cylinder 3 is placed in contact with the protrusion 11 of the cylinder part 1. By doing so, even if the bottle lids collide with each other in the hopper, the pouring lid 2
The outer lid 6 can be prevented from coming off, and it can also be prevented from coming off when plugging.
Furthermore, by making the pouring lid 2 made of polyethylene and the outer lid 6 made of polypropylene, it is possible to easily tear the fissure 13 of the pouring lid 2 in one bottle lid, and the hinge 5 is made to have strong bending resistance. Can be done.

Further, the lower end of the cylinder 3 is positioned on the protrusion 11 of the cylinder 1 so as to be in contact with each other in a plane, and the protrusion 11 is positioned on the protrusion of the bottle opening in such a way that they are in contact with each other in a plane. As a result, the protrusion 11 of the cylinder part 1 cannot be pinched from above or below, thereby preventing unauthorized release of the bottle cap.

[Brief explanation of drawings]

Fig. 1 is a partially omitted half-sectional view of a conventional bottle cap, Figs. 2 to 5 show an embodiment of this invention, and Fig. 2 is a partial sectional view of the bottle cap. Figure 4 is a plan view of the lid of the bottle lid; Figure 4 is a partial cross-sectional view of the bottle lid with the spout lid and lid separated; Figure 5 is the lower end of the bottle lid fitted into the mouth of the bottle. FIG. 6 is a diagram corresponding to FIG. 5 of another embodiment of this invention, and FIG. 7 is a partial sectional diagram of the fall/rotation prevention part of still another embodiment, FIG. 8. 7 is a diagram corresponding to FIG. 7 showing still another embodiment. 1... Cylinder part, 2... Pour lid, 3... Cylinder body, 4...
... Lid body, 5 ... Hinge, 6 ... Outer lid, 7 ... Fall rotation prevention part, 8 ... Engagement part, 9 ... Engaged part, 1
0... lower end, 11... annular projection.

Claims (1)

[Scope of utility model registration request] A polypropylene cylinder 3 integrally provided with an outer lid 6 by a hinge 5 is attached vertically to the outer periphery of the cylinder part 1 of a polyethylene pouring lid 2, which has a torn part formed as a through hole by a fissure 13. Most of the length is provided in close contact with each other, and the engaged portion 9 inside the upper part of the cylinder body 3 is fitted into the groove-shaped engaging portion 8 formed in the pouring lid 2,
Further, a projection 11 extends radially outward from the lower end of the cylindrical portion 1.
The lower ends of the cylinders 3 are positioned on the protrusion 11 so as to be in plane contact with each other, and the lower end of the protrusion 11 is placed on the protrusion formed in the mouth of the bottle and facing outward in the radial direction. A bottle lid characterized by being positioned so that they are in contact with each other in a plane.