JP2001171709A - Cap device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap device securely guiding a central protrusion of a cap to a pouring outlet to prevent the protrusion from hitting an inner stopper top section when the cap is fitted on a bottle, eliminate the expansion or breakage of the protrusion and prevent the clogging of the pouring outlet. SOLUTION: The cap device is provided with an inner stopper 16 with a pouring outlet 14 and a cap 18 blocking the pouring outlet 14, and a central protrusion 20 inserted into the pouring outlet 14 and blocking the same and formed on a central section, and a guide section 22 so protruded as to encircle the central protrusion 20 on a concentric circle with the central protrusion 20 as its center and also protruded to a position below the central protrusion 20 and having at least the inner diameter D1 of a lower end 22a formed larger than the outer diameter D2 of a pouring outlet peripheral section 16a (D1>D2) is formed on the top section lower face 18a of the cap 18, and when a bottle section 12 is covered with the cap 18 and the cap is fitted thereon, the central protrusion 20 can be guided to the inner stopper pouring outlet 14 by the guide section 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottle having an inner plug provided at a bottle mouth and having a spout at an upper central portion thereof, and a cap body which covers the inner plug and closes the spout. It relates to a cap device.

[0002]

2. Description of the Related Art Conventionally, a cap device that removably covers a spout of an inner plug of a bottle with a cap has been disclosed. In use, the cap is removed to expose the inner plug, and the bottle is pressed to release the contents from the spout. Allow the liquid to be poured. In this case,
If the cap is left open for a long time after use, the inner plug is exposed to the air, and the liquid attached to the inner plug increases in viscosity due to the evaporation of the liquid component. Sometimes a film is formed around it. In particular, this tendency is considered to be strong in a bottle containing a relatively viscous gel-like content liquid. If such a film is formed, the passage of the spout may be clogged (clogged) and the liquid may not come out. When the next use is performed, clean the spout with a sharp object. It was necessary to remove the clog before use, which was very inconvenient.

[0003]

In view of the above, a screw cap is provided at the center of the lower surface of the top of the cap to fit into the spout of the inner plug to close the spout of the inner plug. Alternatively, each time the positioning cap is stopped at the mouth of the bottle, it is considered to insert the protrusion into the spout to drop the liquid attached to the spout to prevent clogging.
However, when the projection is formed only, it is difficult to guide the projection to the spout when the cap is attached to the mouth, and the tip of the projection hits the zenith of the inner plug to cause damage to the projection. There is a point. The breakage of the protrusion eventually causes clogging of the spout.

The present invention has been made in view of the above-mentioned conventional problems, and when the cap is mounted on the bottle, the center projection of the cap is reliably guided to the spout so that the projection is formed at the top of the inner plug body. It is an object of the present invention to provide a cap device that can prevent the protrusion from being damaged by preventing the protrusion from being damaged and prevent the spout from being clogged.

[0005]

The present invention has the following arrangement to achieve the above object. The present invention relates to a bottle cap device comprising: an inner plug provided at a bottle mouth and having a spout at an upper central portion; and a cap body which covers the inner plug and closes the spout. The lower surface of the top portion is formed at a central portion to be inserted into the spout of the inner plug and closed, and is formed to a position below the central projecting portion by projecting from a concentric circle centered on the central projecting portion, And a guide portion having at least a lower end inner diameter larger than an outer diameter of the spout peripheral portion, and the cap portion is put on the bottle mouth portion to close the spout so as to close the spout. The cap device according to any one of claims 1 to 3, wherein the center protrusion is guided to the inner plug outlet.

According to the present invention, clogging can be prevented by inserting the spout into the central projection every time the cap body is mounted. At the same time, when the cap is attached to the mouth of the bottle, the guide portion is formed so as to protrude to a position lower than the protrusion and has an inner diameter larger than the outer diameter of the inner plug body outlet before the protrusion. The cap body comes into contact with the plug body to guide the progress of the cap body, that is, the direction of travel of the central projection, whereby the cap body can be securely fitted into the spout. Therefore, it is possible to prevent the projection from hitting the top of the inner plug, thereby preventing the projection from being bent or damaged.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is an explanatory side view of a bottle including a cross-sectional view of the cap body, FIG. 2 is a side view of the bottle with the cap body fitted in the mouth of the bottle, and FIG. FIG. 4 is a detailed sectional view of the inner plug body fitted with the cap body, FIG. 5 is an explanatory view of a state before the cap body is closed, and FIG. 6 is an explanatory view of a state after the cap body is closed. is there.

As shown in FIGS. 1 to 4, an embodiment is an inner plug body 16 provided at a mouth portion 12 of a bottle 10 and having a spout 14 having a circular hole at an upper center thereof. Part 1
2 is a cap device having a cap body 18 that is closed by screwing into the cap body 2. Then, the cap body 18 zenith part lower surface 18
a, a central projection 20 which is inserted into the spout 14 and is closed at the center, and a central projection 20 surrounding the central projection 20 on a concentric circle centered on the central projection 20. And at least the inner diameter D1 of the lower end portion 22a is set to
a having a guide portion 22 formed to have a larger diameter (D1> D2) than the outer diameter D2 of a.
The center projection 20 can be guided to the inner plug spout 14 by the guide portion 22 when being mounted on the body.

The guide portion 22 has a tapered shape in which the inner diameter gradually decreases as the inner peripheral surface goes from the lower end portion 22a to the upper end portion. The tip of the part 20 can be adjusted to the spout 14.

Here, the inner plug 16 has a flange-like projection 16b formed on the lower peripheral surface, and when the lower part is fitted into the mouth 12, the projection 16b serves as a stopper and the inside of the mouth 12 Prevents intrusion into Further, the inner plug 16 can be formed of various plastics.

The cap body 18 is formed in a cylindrical shape with a female screw portion 24b screwed to the outer male screw 24a of the mouth portion 12 surrounding the guide portion 22, and a decorative cover portion 26 is formed around the cylindrical portion. These are all formed so as to project downward from the zenith of the cap body 18.

As shown in detail in FIG. 4, the central projecting portion 20 is formed by forming a substantially cylindrical boss from the lower surface 18a of the zenith portion, and is formed in a tapered shape that tapers downwardly. Have been. And outlet 14
The angle of this taper with respect to the central axis θ = 0
It can be set in the range of up to 5 °, most preferably 2 °. That is, if the angle θ exceeds 5 °, the sealing performance of the sealing surface may be deteriorated.

The length of the central projection 20 should be such that the central projection 20 protrudes from the lower surface 16a of the top of the inner plug when the cap 18 has been screwed into the mouth 12. preferable. In this way, the liquid remaining in the spout 14 can be completely removed. In the embodiment, the length L1 from the base end of the central projection is, for example, 3 mm. The protrusion amount L2 of the central projection 20 from the lower surface 16a of the middle plug body zenith is determined by the cross-sectional thickness A of the middle plug body zenith.
(1.8 mm), the length of the protrusion from the zenith is 1.
2 to 1.6 times (projection amount L2 = 0.36 to 1.08 m
m) Preferably 1.4 times (projection amount L = 0.7 mm)
And can be. The outer diameter d of the projection 20 is 0.5 to 2.5.
mm (preferably 1.0 mm). That is, when the outer diameter d is less than 0.5 mm, the moldability is poor, accuracy is apt to occur, and the strength tends to be insufficient. On the other hand, when the outer diameter d exceeds 2.5 mm, the usability becomes inappropriate. Because.

The spout 14 of the inner plug is chamfered at the upper open end, and the tip thereof is a spout due to the gap between the outer diameter of the peripheral portion of the inner plug at the time of the projection 20 being inserted. Even if it slightly deviates from 14, the effect of guiding the spout 14 can be easily achieved.

In the cap device of the embodiment, the bottle 10
After pouring out the liquid, the cap body 18 is placed in the bottle mouth 1
As shown in FIG. 5, the guide portion 22 hits the inner plug body 16 before the projection portion 20 and guides the central projection portion 20 to the inner plug body outlet 14 as shown in FIG. I do. Then, as shown in FIG. 6, the inner plug 16 is covered with the cap body 18 and the attachment to the mouth 12 is completed. Therefore, each time the mouth portion 12 of the cap body 18 is attached, the spout 14
Can be cleaned by fitting it into the central projection 20 to prevent clogging. At the same time, when the cap body 18 is attached to the mouth part 12, the guide part 22 formed so as to protrude to a position below the protruding part 20 is positioned before the center protruding part 20.
6 to advance the cap body 18, that is, the central projection 2
The guiding direction of zero is guided, whereby the fitting can be surely performed in the spout. Therefore, the central projection 20 is prevented from hitting the top of the inner plug 18 and the central projection 2 is prevented.
Zero bending or breakage can be prevented.

[0016]

As described above, according to the present invention, the spout can be inserted into the central projection to clean the cap every time the cap is attached, preventing clogging and attaching the cap to the mouth of the bottle. At this time, the guide portion comes into contact with the inner plug prior to the protrusion, and guides the movement of the cap body, that is, the direction of movement of the central protrusion, whereby the fitting can be reliably inserted into the spout. Therefore, it is possible to prevent the projection from hitting the top of the inner plug, and prevent the projection from being bent or damaged.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a bottle including a cross-sectional view of a cap body in a cap device according to an embodiment of the present invention.

FIG. 2 is a side view of the bottle in a state where a cap body is fitted to a bottle mouth.

3A is an explanatory view of a bottle mouth portion and an inner plug body with a cap removed, FIG. 3A is a plan view, and FIG. 3B is a side view.

FIG. 4 is a detailed sectional view of an inner plug body fitted with a cap body.

FIG. 5 is an explanatory diagram of a state before a cap body is closed.

FIG. 6 is an explanatory diagram of a state after the cap body is closed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Bottle 12 Mouth 14 Injection port 16 Inner plug 16a Outlet peripheral part 18 Cap body 18a Lower surface of the zenith surface of cap body 20 Central projection 22 Guide part 22a Lower end of guide part D1 Lower end inner diameter of guide part D2 Inner stopper Outer diameter of peripheral part of body spout L2 Amount of protrusion of central projection from lower surface of zenith

Claims (1)

[Claims] 1. A bottle cap device comprising: an inner plug provided at a bottle mouth and having a spout at a central upper portion; and a cap body which covers the inner plug and closes the spout. The lower surface of the zenith part is formed at the central part to be closed by being inserted into the spout of the inner plug, and to extend to a position below the central protrusion protruding from a concentric circle centered on the central protrusion. And a guide portion having at least a lower end inner diameter formed to be larger than an outer diameter of the spout peripheral portion, and the cap is closed over the bottle mouth by closing the spout. A cap device wherein the central projection can be guided to the inner plug spout by a portion.