JPH0138046Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a bottle cap for storing various liquid products.

The inventor of this device had previously devised a bottle cap and filed a utility model application. (Utility Model No. 56-100355)
The bottle lid of this invention is as shown in Figures 1 and 2, and is made of polypropylene resin.
A is an annular attachment portion, and this and the outer cover b are integrally formed by a connecting piece c.

A thin portion d is formed on the connecting piece c to form a hinge. Reference numeral e denotes a protrusion provided on the outer cover b, and when the outer cover b rotates, it is blocked by the protrusion f of the attachment part a, and the rotation of the outer cover b is prevented if left as is. In this case, by applying a strong force to the outer cover b, the protrusion f is caused to cross over the protrusion e, and the outer cover b is opened and closed. Reference numeral g denotes an inner stopper to which the attachment part a is attached, and is designed to fit into a bottle spout (not shown).

This bottle cap is widely used because it can prevent the open outer cap b from dripping down and covering the bottle mouth when the liquid inside the bottle (not shown) is poured out from the bottle mouth. However, this bottle cap had the following drawbacks. When molding the mounting part a and the outer cover b,
As shown in Fig. 2, since the outer cover b is molded in an open form, a large area is required, and although illustration is omitted,
The disadvantage is that the number of outer covers b and attachment parts a that can be formed on the mold is reduced. Also, the outer lid b formed in this way is bent from the connecting piece c and then inserted into the inner plug g.
There is also the disadvantage that the number of man-hours required for installation increases as it is fitted into the body.

This invention was made in order to improve such a difficulty, and to explain this invention with reference to the drawings, in Figs. is inclined radially inward, and the inclined part has a taper that becomes thinner toward the top, and the lid body 4 is integrally connected via two hinges 2, 2 rising upward from the tip of the inclined part. A protrusion 3 protruding radially outward is provided between the hinges 2 and 2 of the lid body 4, and the tip of the protrusion 3 is positioned radially inward from the outer periphery of the base 1. , a blocking part 5 is formed on the inclined part of the base 1 to slightly protrude into the rotation locus S of the protrusion 3, and between the lid 4 and the base 1,
This bottle lid is characterized by having a gap around the entire circumference except for the space where the hinges 2, 2 and the protrusion 3 between the hinges 2, 2 are formed.

To explain this in detail, the base 1 is formed so as to fit into an inner stopper 7 shown in FIG. 7, for example. Reference numeral 8 in FIG. 7 is a protrusion, which is adapted to firmly engage with the grooved strip 9 of the base 1 shown in FIG. 4.

However, although this is just an example and illustration is omitted, there is no problem in forming the base 1 so as to fit directly into the mouth of the bottle.

When using the base 1 by fitting it into the inner stopper 7,
The convex portion 10 of the lid body 4 is adapted to firmly engage with the convex portion 11 of the inner stopper 7. Reference numerals 12 and 13 indicate an inner cylinder and an outer cylinder, respectively, which fit into a bottle mouth (not shown), 14 a tearing groove, 15 a tension ring, and 16 a pouring tube. In addition, 17 shown in FIG.
It has become close to the inner surface of 6. 18 is a collar, and 19 is a notch. Further, the concave lines 20, 21 and the convex lines 22, 23 shown in FIG. 7 are adapted to firmly adhere to and hold the bottle opening (not shown) formed correspondingly thereto.

The bottle cap of this invention is molded in the form shown in FIG. When opening and closing the lid body 4, if you open it temporarily, pinch the flange 18 and press the arrow A.
By pushing up in four directions, the lid 4 is opened due to the elastic deformation of the hinges 2, 2, and the protrusion 3 is prevented from rotating by the blocking part 5 of the base 1, but by applying further force, the lid 4 is opened. By urging in the same direction, the protrusion 3 passes over the blocking part 5 and enters the inside of the blocking part 5. When the lid 4 is released in this state,
The lid body 4 attempts to return to its old position due to the return of the elastic deformation of the hinges 2, 2, but since the projection 3 is prevented from rotating inside the blocking portion 5, the lid body 4 cannot return any further. Movement is blocked. In this state, liquid or the like is poured out from the bottle spout (not shown). In this state, the lid 4 is fixed to the base 1 in an open state and does not cover the bottle mouth.

Next, when closing the lid 4 from this state, apply a slightly stronger force and rotate the lid 4 in the direction opposite to the arrow A4. go outside. Just press the lid 4 in the same direction to close it. In this case, the lid body 4 is closed by engaging the protrusion 10 with the protrusion 11 of the inner stopper 7, for example.

This invention is constructed as described above, and by using polypropylene, the hinge 2,
2 can be formed to be difficult to cut, and as a result, the lid body 4 and the base 1 can be molded in a closed state with a gap between them, so that the lid body 4 and the base 1 can be molded in a closed state with a gap between them. You can mold more than you can mold. Therefore, it is possible to omit the trouble of preliminarily integrally molding the portion between the two 4 and 1 into a thin wall and then separating this portion later. Furthermore, the conventional outer cover b shown in FIG.
However, by hand etc., bend this from the connecting piece c,
The troublesome process of bringing the outer lid b into a so-called closed state before proceeding to the capping process can be omitted. In addition, since the protrusion 3 of the lid body 4 is positioned radially inward than the outer circumference of the base 1, the protrusion 3 presses against other bottle caps on the aligning machine during capping, causing the bottle caps to become jammed. It is also possible to prevent the so-called bridging phenomenon that stops the flow.

[Brief explanation of the drawing]

Figure 1 is a side view of a conventional bottle lid, Figure 2 is a plan view of the outer lid and attachment part, Figures 3 to 7 are examples of this invention, and Figure 3 is a bottle lid. 4 is a sectional view of the same, FIG. 5 is a side view of the same, and 6 is a plan view of the same.
The figure is a rear view of the same, and FIG. 7 is a half-sectional view of the inner stopper into which the bottle lid of this invention is fitted. 1...Base, 2...Hinge, 3...Protrusion, 4...
... Lid body, 5 ... Blocking part, 8 ... Rotation locus.

Claims (1)

[Scope of utility model registration request] A part of the upper part in the circumferential direction of the annular base 1 made of polypropylene is inclined radially inward, and the inclined part is tapered so that it becomes thinner as it goes upward, and from the tip of the inclined part upward. A lid body 4 is integrally provided via two rising hinges 2, 2, and a protrusion 3 protruding radially outward is provided between the hinges 2, 2 of the lid body 4, and a tip of the protrusion 3 is provided. Department,
forming a blocking portion 5 located radially inward from the outer periphery of the base 1 and slightly protruding into the rotation locus S of the protrusion 3 at the inclined portion of the base 1;
A bottle lid characterized in that a gap is provided between the lid 4 and the base 1 around the entire circumference except for the space where the hinges 2, 2 and the protrusion 3 between the hinges 2, 2 are formed.