JPS5815307Y2 - cap - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cap that is attached to the mouth of a bottle via an inner seal.

Conventionally, as shown in the first diagram, an inner seal board presser 4 having a shape such as a cylinder is placed between a cap top plate 2 and an inner seal board 3 as a cap with a high height to enhance the design effect. A cap 1 attached to the bottom surface of the cap has been devised and put into practical use.

In the drawings, 5 is a bottle, 6 is a mouth of the bottle, and 7 is a protrusion for locking an inner seal board.

According to this cap 1, there is no need to raise the position of the mouth of the bottle to match the height of the top plate of the cap, so as the mouth of the bottle becomes higher, the unfilled space at the mouth of the bottle increases.
It can be sealed in a state where the feeling of relative weight loss is completely prevented.

However, in the above-mentioned cap, the inner seal board presser 4 must be manufactured in a separate process and must be fixed to the cap top plate 2, which has the drawback of requiring a lot of effort in manufacturing.

The present invention was developed as a result of research to eliminate the drawback of the slanted structure. The inner seal board should be pressed by the hanging protrusions protruding between the horizontal protrusions for holding down the inner seal board, so that the inner seal board is evenly and completely adhered to the mouth of the bottle over the entire circumference. The positions of the horizontal protrusions for holding the inner seal board, the protrusions for locking the inner seal board, and the spiral protrusions, and the position of the hanging protrusions for holding the inner seal board that should protrude from the bottom surface of the cap top plate are alternately arranged in the circumferential direction. It was discovered that one-piece injection molding was possible by shifting the gap, and the idea was perfected based on this knowledge. In a high cap, from the inner peripheral surface of the side of the cap,
A plurality of horizontal protrusions for holding down the inner seal board are provided at positions in the cap where the lower surface of the protrusions can be press-fitted tightly to the mouth of the bottle via the inner seal board when sealing the bottle, and protrude over the entire circumference at intervals from each other. A plurality of hanging protrusions for holding the inner seal board are provided between the horizontal protrusions for holding the inner seal board, the length of which extends from the bottom surface of the cap top plate so that the tip surface thereof is located on the same plane as the bottom surface of the horizontal protrusions; A plurality of inner seal board locking protrusions are provided on the inner circumferential surface area of the side of the cap below the horizontal protrusions for holding the inner seal board, aligned vertically with the horizontal protrusions for holding the inner seal board and spaced apart from each other. A plurality of spiral protrusions are provided on the inner circumferential surface area of the side of the cap below the inner seal board retaining protrusion and are aligned in the vertical direction with the horizontal protrusion for holding the inner seal board. It is a cap that protrudes at various points.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

2 and 3 show a cap 15 according to the present invention,
Figure 2 is a partial vertical cross-sectional view, and Figure 3 is a partial cross-sectional view.

From the inner peripheral surface 9 of the cap side part 8, a plurality of horizontal protrusions 10 for holding down the inner seal board are located at positions inside the cap where the lower surface of the protrusions 10 can be pressed into close contact with the mouth of the bottle via the inner seal board when the cap is tightly closed. Lengths are provided that protrude from each other at intervals in the circumferential direction, and whose tip surfaces are located on the same plane as the lower surface of the horizontal projections from the lower surface 11 of the cap top plate 2 between the horizontal projections 10 for holding down the inner seal board. The inner seal board holding down protrusions 12 are provided in a protruding manner, and the inner seal board holding horizontal protrusions 10 and the inner seal board holding down hanging protrusions 12 are arranged alternately in the circumferential direction.

Further, a plurality of inner seal board locking protrusions 13 are provided from the inner circumferential surface 9 of the cap side portion 8 at an appropriate distance equal to or more than the thickness of the inner seal board from the inner seal board holding horizontal protrusions 10. It is provided in a protruding manner at the same vertical position as the horizontal presser projection 10.

Furthermore, a plurality of spiral protrusions 1 are provided from the inner circumferential surface 9 of the cap side portion 8 below the inner seal board locking protrusion 13.
4 are protruded at intervals at the same vertical position as the horizontal projections 10 for holding down the inner seal board.

Therefore, according to the cap according to the present invention, the cap is attached to the bottle via the inner seal as shown in the fourth figure, and the horizontal protrusion 10 for holding the inner seal board and the horizontal protrusion 10 for holding the inner seal board are attached. The inner seal board 3 can be pressed against the mouth of the bottle by the hanging protrusions 12, and the bottle can be sealed with extremely high sealing performance.

Further, in manufacturing the cap of the present invention, as shown in Figure 5, the core part of the mold that is inside the cap has a core A for molding the inside part of the cap having a hanging protrusion 12 for holding down the inner seal board, and an inner seal board. Horizontal projection 10 for presser, inner seal board locking projection 13,
After the core B for molding the inner part of the cap having each protrusion of the spiral protrusion 14 is injection molded using a separate mold, the core A is moved downward, while the core B is moved toward the center. It is possible to integrally mold the core and the molded product by moving the core and the molded product separately.

As described in detail above, according to the cap of the present invention, it is possible to seal the bottle tightly with a space provided between the cap top plate and the inner seal board, so there is no need to raise the mouth of the bottle, and therefore it is possible to It has the advantage of not causing a feeling of weight loss.

In addition, desiccant etc. can be placed in the space between the cap top plate and the inner seal board.

Furthermore, since the cap of the present invention has a structure that can be molded in one piece, it can be manufactured extremely easily without going through the process of separately molding the inner seal board holder and adhering it to the inside of the cap body, which is the case with conventional products. be able to.

[Brief explanation of drawings]

Figure 1 is a partial vertical sectional view of a conventional cap, Figures 2 and 5 are caps of the present invention, Figure 2 is a partial vertical sectional view, Figure 3 is a partial cross sectional view, and Figure 4 □ 5 is a partial vertical cross-sectional view of the cap of the present invention attached to a bottle, and FIG. 5 is a partial front view of the core portion of the molding die. 15... Cap, 2... Cap top plate, 8... Cap side, 9... Inner peripheral surface of cap side, 10...・Horizontal protrusion for holding the inner seal board, 11...Bottom surface of the top plate, 12.
...Descent protrusion for holding inner seal board, 13
...Inner seal board locking protrusion, 14.
...Spiral projection.

Claims (1)

[Scope of utility model registration request] When the cap is attached to the mouth of the bottle, the top plate of the cap is located higher than the base of the bottle.In the case of a tall cap, multiple horizontal protrusions for holding down the inner seal board are attached to the inner circumferential surface of the side of the cap. At a position within the cap that can be press-fitted to the mouth of the bottle through the inner seal board, projecting parts are provided along the entire circumference at intervals, and a tip is provided from the bottom surface of the cap top plate between the horizontal protrusions for holding down the inner seal board. A plurality of hanging protrusions for holding down the inner seal board are provided so as to protrude so that their surfaces are on the same plane as the lower surface of the horizontal protrusion, and the inner periphery of the side of the cap below the horizontal protrusion for holding the inner seal board is provided. A plurality of inner seal board locking protrusions are provided on the surface area, aligned vertically with the inner seal board retaining horizontal protrusions, and protruding from one another at intervals, and further protruding from the inner seal board retaining horizontal protrusions. A cap in which a plurality of screw-like projections are provided in an area of the inner circumferential surface of a side portion of the cap below the stopper projection, and are provided at intervals in a vertical direction aligned with the horizontal projection for holding down the inner seal board.