JPH0348047Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a bottle cap that is attached to the mouth of a bottle for storing various liquid products such as alcoholic beverages, youth, soy sauce, etc.

[Prior Art] Conventionally, although not shown in the drawings, a bottle stopper made of synthetic resin has an endless fissure formed in its mouth wall to form a tear-off part, and a tear-off member such as a pull ring is placed on the tear-off part. A widely used type is a type in which the bottle is provided with a tear-off member, and the tear groove is cut at the time of first use to pour out the contents of the bottle.

It is widely used because it can be sealed until the first use and is relatively easy to open.

On the other hand, there is another type of bottle lid, although not shown, in which the lid is opened and closed using a hinge that connects the lid to the base. It is prized because an excellent hinge can be obtained by forming it using a synthetic resin that has good resistance to repeated bending.

[Problems to be Solved by the Invention] However, although there has been a demand for something that has the functions of both the bottle lid and the bottle stopper, it has never appeared on the market. This is due to the good tearability of the fissure,
Since this is contradictory to the good resistance to repeated bending, it was not possible to create a product that had both functions.

This invention was devised to solve these problems, and the purpose was to create a bottle that has both the functions of good tearing properties of the fissures for opening formation, and good resistance to repeated bending of the hinge. It is to provide a lid.

[Means for solving the problem] This invention that achieves the above purpose is described as follows: A synthetic resin inner stopper 1 that fits into the mouth of the bottle.
and an outer lid 6 made of polypropylene that is attached to the inner stopper 1. The inner stopper 1 has a thick inner cylinder 8 that presses against the outer periphery of the upper end of the bottle mouth, and an inner cylinder 13 with a partition wall. 18 is formed in an annular and inverted groove shape to form a clamping fitting part that clamps and fits the bottle opening, and a mouth wall 4 that blocks the flow of liquid is formed inside the clamping fitting part; An endless fissure 3 is formed in the mouth wall 4, a tearing member 5 is provided on the upper surface of the tearing part 2 formed inside the fissure 3, and a tearing member 5 is provided on the outer lid 6. An outer cylinder 7 that fits in contact with the outer surface of the inner cylinder 8 of the inner plug 1 is formed, and a hinge 10 is attached to the outer cylinder 7.
This is a bottle lid in which a lid body 11 is integrally provided with a lid 11 interposed therebetween.

[Operation] A user such as a consumer opens the lid 11 using the hinge 10, picks up the tearing member 5, and pulls it upward to tear the fissure groove 3 and form an opening there. , the liquid product in the bottle with this bottle cap attached is poured out. When the pouring is finished, the lid 11 is closed again using the hinge 10.

In this case, the inner plug 1 is formed separately from the outer lid 6 made of polypropylene resin and is combined with the inner plug 1, so if polyethylene resin or the like is used, the inner plug 1 has the property of being easy to tear. The fissure groove 3 can be formed to be easily torn, and since the outer lid 6 is made of polypropylene resin, the general property of polypropylene resin is high resistance to repeated bending. It is possible to obtain a good bottle lid having contradictory properties such as the lid 6 having high resistance to repeated bending.

[Example] In FIGS. 1 and 2, 1 indicates an inner stopper,
A middle cylinder 8 and a middle cylinder 13 made of synthetic resin are formed in an annular and reverse groove shape by a partition wall 18, and a clamping fitting part of the bottle opening is formed. Reference numeral 4 indicates a mouth wall that is integrally formed inside the clamping fitting part and blocks the flow of liquid. Further, 3 is an endless fissure formed in the mouth wall 4, and 2 is a torn part formed inside the fissure 3. A pull ring-shaped tearing member 5 is provided on the upper surface of the tearing portion 2. 15 is the lid body 11
, a locking portion that locks into the engaging portion 16, and 14 indicate a pouring barrel.

Next, 6 is an outer lid, which is made of polypropylene resin, and a lid body 11 is integrally formed with the outer cylinder 7 via a hinge 10. The outer tube 7 is fitted into contact with the outer surface of the inner tube 8. Further, the hinge 10, as shown in FIG.
It is formed by three pieces, a middle hinge 10' at the center and outer hinges 10'' on both sides thereof, and the length of the middle hinge 10' is longer than the length of the outer hinge 10'', so that the lid body 11 is opened. It is designed to be maintained in that state.

This is formed so that the lid body 11 remains open when liquid flows out from the bottle mouth.

[Effects of the invention] This invention is formed as described above, and has a synthetic resin middle cylinder 8 and an inner cylinder 1 that are pressed against the outer periphery of the upper end of the bottle mouth.
3 is a clamping fitting part formed in an annular and reverse groove shape by the spacer wall 18 and which clamps and fits the bottle mouth;
A mouth wall 4 formed on the inside of the clamping fitting part to block the flow of liquid, an endless fissure 3 formed on the mouth wall 4, and a tear formed on the inside of the fissure 3. The tearing member 5 provided on the upper surface of the portion 2, the inner plug 1 formed with the above structure, and the inner tube 8 of the clamping fitting portion.
By providing an outer tube 7 made of polypropylene resin that is fitted in contact with the outer surface of the outer tube, and an outer cover 6 consisting of a cover body 11 that is integrally provided with the outer tube 7 via a hinge 10, If the inner plug 1 is made of a synthetic resin that is easily torn, such as polyethylene resin,
It is possible to provide a bottle lid that has contradictory good properties in that the fissure 3 for forming the opening is easily torn and the hinge 10 of the outer lid 6 has high resistance to repeated bending. In addition, as another effect, the middle cylinder 8 of the clamping fitting part
By fitting the outer cylinder 7 made of polypropylene resin in contact with the outer surface of the inner plug 1, and since polypropylene is generally harder than polyethylene, if the inner plug 1 is formed of polyethylene as described above, An outer cylinder 7 made of polypropylene, which is harder than the middle cylinder 8, is placed on the outside of the middle cylinder 8 made of polyethylene.
Since the inner cylinder 8 is provided in contact with each other, and because the inner cylinder 8 is formed to have a thick wall, when the bottle lid is attached to the bottle mouth, the outer cylinder 7 will cause the inner cylinder 8 to have an extreme In this case, it can be used as a seal, thereby further increasing the sealing power of the bottle cap.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; FIG. 1 is a partial sectional view of a bottle cap, and FIG. 2 is a plan view of the bottle cap. 1... Inner stopper, 2... Torn part, 3... Fissure groove, 4...
... Mouth wall, 5 ... tearing member, 6 ... outer lid, 7 ... outer cylinder, 8 ... middle cylinder, 10 ... hinge, 11 ... lid body, 13 ... inner cylinder, 18 ... partition wall .

Claims (1)

[Scope of utility model registration request] It consists of an inner stopper 1 made of synthetic resin that fits into the mouth of the bottle, and an outer lid 6 made of polypropylene that is attached to the inner stopper 1. The meat middle cylinder 8 and the inner cylinder 13 are formed in an annular and reverse groove shape by the spacer wall 18, forming a clamping fitting part that clamps and fits the bottle mouth, and inside the clamping fitting part. A mouth wall 4 that blocks the flow of liquid is formed, an endless fissure 3 is formed in the mouth wall 4, and the fissure 3
A tear-off member 5 is provided on the upper surface of the tear-off portion 2 formed inside the
The outer lid 6 is provided with an outer cylinder 7 that fits in contact with the outer surface of the inner cylinder 8 of the inner stopper 1, and a lid is attached to the outer cylinder 7 via a hinge 10. A bottle lid in which a body 11 is integrally provided.