JP2001301805A - Container with fitted cap having inner plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an inner plug from coming out of a neck when a cap is to be unscrewed in a container with the fitted cap including the inner plug wherein the inner plug is mounted in the cap in advance, so that the inner cap is automatically fitted into the neck by screwing a cap peripheral wall onto an external surface of the neck of a container body. SOLUTION: A plurality of band protrusions 15 forming a tip circle having a diameter larger than an inner diameter of the neck of the container body are vertically provided at approximately equal intervals on an external surface of a fitting cylinder 13 of the inner plug 11. When the fitting cylinder is forced to be pushed into the neck 2, the diameter is reduced so that a tip circle of a first engaging protrusion 16 attached to an external surface of an outward flange 14 at an upper end of the fitting cylinder becomes approximately similar in diameter to or smaller than an inner diameter of a second engaging protrusion 29 provided around an internal surface of an upper part of a first peripheral wall 23 of the cap.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap-fitting container with an inner plug.

[0002]

2. Description of the Related Art An inner plug is fitted to the inner surface of the mouth and neck of a container body,
Further, in a container provided with a cap screwed onto the outer surface of the mouth and neck, in order to prevent the sealing of the mouth and neck by the inner plug screwing and the cap screwing from being troublesome twice, The inner plug is suspended in the cap, and the cap with the inner plug is screwed into the mouth and neck of the container so that the inner plug can be fitted into the mouth and neck at the same time. I have.

[0003]

In the above-described container, when the cap is unscrewed for the first time, the inner plug should remain engaged with the mouth and neck, and only the cap can be unscrewed. In some cases, however, the inner stopper was sometimes too strong against the cap, so that when the cap was unscrewed, both the inner stopper was pulled out of the mouth and neck of the container body and did not function as the inner stopper.

The object of the present invention is to eliminate the above disadvantages.

[0005]

As a first means, a bottom wall 12 is provided.
An elastic synthetic resin inner plug 11 having an outer peripheral flange 14 attached to the upper end of the cylindrical portion while erecting the fitting cylindrical portion 13 from the outer periphery.
Is fixed to the upper end of the inner surface of the cap 21, and the fitting cylindrical portion 13 of the inner plug is fitted to the inner surface of the mouth and neck by screwing the first peripheral wall 23 of the cap to the outer surface of the mouth and neck 2 of the container body. In addition, the lower surface of the outward flange is pressed against the upper end surface of the mouth and neck portion 2 in a watertight manner, and the inner plug 11 is provided so as to remain in the mouth and neck portion when the cap is unscrewed. The stopper of the inner plug 11 on the inner surface of the cap is provided on the upper surface of the second engaging ridge 29 provided on the upper inner surface of the first peripheral wall 23, and the first engaging ridge 16 provided on the outer peripheral surface of the inner plug outward flange. The lower surface is engaged, and a plurality of band-shaped protrusions 15 are vertically provided on the outer surface of the inner plug fitting cylindrical portion 13 at substantially equal intervals. The diameter is reduced by forcibly pushing the fitting cylinder 13 into the inner surface of the mouth and neck by screwing and tightening the cap with an internal stopper on the outer surface of the mouth and neck of the container body. Te, the first engagement protrusions 16 tip circle for this time, the second engagement ridge 29 inside diameter is formed to be substantially the same diameter or smaller diameter.

As a second means, the first means is provided, and the lower half portion of the fitting cylinder is formed in a tapered shape having a larger upper diameter and a lower outer diameter smaller than the inner diameter of the mouth and neck. A belt-like projection 15 was vertically provided on the outer surface of the upper half part of the cylindrical portion.

As a third means, the above-mentioned first or second means is provided, and a plurality of first engaging ridges 16 are provided at substantially equal intervals from the outer peripheral surface of the outward flange. The ridge 16 and the respective band-shaped protrusions 15 were positioned on the same radiation as viewed from below the inner plug.

As a fourth means, there is provided the first, second or third means, and a nozzle is provided on a part of the cap top wall.

As a fifth means, there is provided the above-mentioned fourth means, and the nozzle is formed by a cylindrical body having a base end pivotally mounted on a top wall of the cap so as to be able to move up and down. A through hole 37 communicating with the hole 35 and being hermetically sealed by the lower surface of the base end portion of the nozzle when falling down was formed in the top wall.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Is a container body for erecting the mouth and neck portion 2, and a male screw 3 for cap screwing is provided on the outer surface of the mouth and neck portion. It is desirable that the container body can be elastically squeezed.

Reference numeral 11 denotes an inner plug fitted into the upper end of the mouth and neck portion. The inner plug 11 stands up from the outer periphery of the bottom wall 12 and has an outward flange 14 attached to the upper end of the fitting cylinder. I have.

The lower portion of the fitting tube 13 is tapered such that the upper outer diameter and the lower end outer diameter are smaller than the inner diameter of the mouth and neck portion 2. Belt 15
Are installed vertically at substantially equal intervals. Note that the outer diameter of the upper part of the fitting cylindrical portion 13 is formed to be slightly larger than the inner diameter of the mouth and neck, but in the state where it is forcibly fitted into the mouth and neck as shown, the diameter is reduced. The outer surface of the band-shaped protrusion 15 is pressed against the inner surface of the mouth and neck, and a small gap is formed between the outer surface of the fitting cylindrical portion 13 excluding the band and the inner surface of the mouth and neck. In addition, the first engaging ridge is provided at substantially equal intervals from the upper portion of the outer peripheral surface of the outward flange 14.
16 are protruding. The first engagement ridge 16 and the band-shaped projection
As shown in FIG. 2, it is desirable that the position 15 is located on the same radiation as viewed from below the inner plug. However, the first engagement ridge 16 may be provided circumferentially.

The inner plug is formed of a synthetic resin material having elasticity. In the illustrated example, the support rod 17 is
And a well-known pull ring 18 is provided laterally at the upper end of the support rod.

Reference numeral 21 denotes a cap which is screwed from the outer periphery of the top wall 22 to the outer surface of the neck of the container body to suspend the first peripheral wall 23, and from the lower surface of the outer periphery of the top wall for pushing down the outward flange 14 described above. Push down cylinder
Hang 24.

An upper portion of the first peripheral wall 23 is formed in a small-diameter peripheral wall portion 27 via an upwardly-facing step 26, and a plurality of washing through holes 28 are formed at the lower end of the small-diameter peripheral wall portion. The position of the hole 28a is substantially the same as the upper end surface of the mouth and neck portion 2 or is located above the upper end surface of the mouth and neck portion. As shown, the through hole 28 extends vertically from the outer peripheral portion of the lower surface of the upward step portion 26 to the vertical hole portion 28.
It is preferable that a hole b is formed and the inner end of the through hole 28 is opened in the upper part of the vertical hole. In this way, the pressing cylinder 24
Is positioned inside the vertical hole portion 28b, so that the washing water that has entered through the opening on the outer surface of the through hole 28 during cleaning after the cap fitting is guided downward into the first peripheral wall by the vertical hole portion, and the mouth and neck outer surface To clean the liquid, etc., which overflows into the cap.
It is possible to prevent the washing water from entering between the gap 11 and the gap.

As shown in FIG. 4, a second engaging ridge 29 is provided around the upper inner surface of the first peripheral wall portion below the small diameter peripheral wall portion 27. The ridge forms an engagement portion for engaging the lower surface of the first engagement ridge 16 described above to stop the inner plug 11 in the cap in advance, and screws the cap 21 to the mouth and neck. By combining
After the fitting cylindrical portion 13 of the inner plug 11 is fitted into the mouth and neck, the cap 21 is screwed off, and the second engaging ridge 29 becomes the first engaging ridge 16.
, And only the cap is removed, and the inner plug 11 is provided so as to remain fitted.

It is preferable to form a large number of knurled narrow grooves 30 from the inner end of the upper surface of the upward step 26 to the outer surface of the lower portion of the first peripheral wall below the upper surface of the upward step. As a result, it is possible to prevent the washing water from adhering to the upward step portion 26 and the outer surface of the first peripheral wall portion thereunder and remaining as it is. In addition, the narrow groove portion on the upper surface of the upward step portion, when the cover 43 is fitted as described below, between the lower end surface of the peripheral wall and the upward step portion 26, to form a water injection path to the through hole 28. Become.

In the example shown in FIG.
As shown from above, a U-shaped support plate 31 having an elongated upper and lower horizontal bar portion when viewed from above is erected, and a base end portion 32 is pivotally attached 33 inside the back portion of the support plate to make the nozzle 34 fall down. . The nozzle is capable of raising and lowering about its pivot portion, and communicates with the nozzle hole 35 when standing up, and has a through hole 37 in the top wall 22 which is closed by the lower surface of the nozzle base end when falling down. .
Reference numeral 38 denotes a handle for raising and lowering the nozzle.

The nozzle is not limited to a nozzle provided to be able to undulate as shown in the illustrated example. The nozzle is erected from a peripheral edge of a through hole formed in a top wall, and a nozzle having a nozzle upper end provided separately. Alternatively, the outer cap may be closed with the lower surface of the top plate of the outer cap described later. Also, there is no problem even if the nozzle is not provided.

In the illustrated example, the second from the outer periphery of the top plate 41
A cover 43 hanging down from the peripheral wall 42 is provided, a lower portion of the second peripheral wall is fitted to the outer surface of the small peripheral wall portion 27, and a third engaging ridge 36 is provided around an intermediate portion in the vertical direction of the outer surface of the small peripheral wall portion, The upper surface of the fourth engaging ridge 44 provided on the lower surface of the second peripheral wall is engaged with the lower surface of the engaging ridge.

[0021]

According to the present invention, the inner plug 11 is retained on the inner surface of the cap by the second engaging projection 29 of the first peripheral wall 23 of the cap. The lower surface of the first engaging ridge 16 provided on the outer peripheral surface of the inner plug outwardly-facing flange is engaged with the upper surface, and the tip circle of the band-shaped projection 15 vertically installed on the outer surface of the fitting projection 13 of the inner plug. Is larger than the inner diameter of the mouth and neck, and when the inner plug is fitted into the mouth and neck, the inner diameter of the second engagement ridge 29 and the tip circle of the first engagement ridge 16 are substantially the same or smaller. As a result, it is possible to reliably prevent the inner plug from being pulled out when the cap is unscrewed.

In the case of the second aspect, the inner plug can be easily fitted into the mouth and neck.

In the case of the third aspect, the first engagement protrusion 16 is provided by projecting from the outer surface of the outward flange portion above the fitting tube portion provided with the band-shaped protrusion which is reduced in diameter when the inner plug is fitted. Since there,
The diameter of the first engagement ridge is also reduced substantially in the same manner as the band-shaped projection, and the effect described in claim 1 can be further enhanced.

According to the fourth and fifth aspects, the convenience of the container can be improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of the container of the present invention.

FIG. 2 is a bottom view of the inner plug used in the container of FIG.

FIG. 3 is a plan view of a cap used in the container of FIG. 1;

FIG. 4 is an enlarged sectional view of a main part of the container in FIG. 1;

[Explanation of symbols]

 11 ... Inner plug 14 ... Outward flange 15 ... Band-shaped projection 16 ... First engagement ridge 21 ... Cap 29 ... Second engagement ridge 43 ... Cover

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Chiaki Kamimura 1-6-9, Nobe, Ibeki-shi, Osaka Inside the Yoshino Kogyosho Osaka Plant (72) Inventor Hideo Uemura 1-6, Nobe, Ibeki-shi, Osaka 9 Yoshino Kogyosho Co., Ltd. Osaka Factory (72) Inventor Tsugio Arai Character Nobe 1-6-9 in Ibaraki City, Osaka Prefecture Yoshino Kogyosho Co., Ltd. Osaka Factory F-term (reference) 3E084 AA04 AA12 BA03 CA01 CC03 DA01 DB08 DB12 DB13 DC03 EA03 EB04 EC03 FA09 FB01 FC07 GA04 GA08 GB04 GB12 GB17 LA17 LB02 LB07 LC01 LC04 LD08 LD16

Claims (5)

[Claims] 1. An elastic synthetic resin inner plug (11) having a fitting cylindrical portion (13) standing upright from the outer periphery of a bottom wall (12) and an outward flange (14) attached to the upper end of the cylindrical portion (13) is moved to the upper end of the inner surface of the cap (21). The inner cylindrical fitting 13 is fitted to the inner surface of the mouth and neck portion by screwing the first peripheral wall 23 of the cap to the outer surface of the mouth and neck portion 2 of the container body. In a cap-fitting container provided with an inner plug that is pressed against the upper end surface of the mouth and neck part 2 in a water-tight manner so that the cap is unscrewed, the inner stopper 11 is attached to the inner surface of the cap. Stopping is performed by engaging the lower surface of the first engaging ridge 16 provided on the outer peripheral surface of the inner plug outwardly-facing flange with the upper surface of the second engaging ridge 29 provided on the upper inner surface of the first peripheral wall 23, and A plurality of band-shaped protrusions 15 are vertically provided on the outer surface of the inner plug fitting cylindrical portion 13 at substantially equal intervals, and the front-end circle of the band-shaped protrusions has a diameter larger than the inner diameter of the mouth and neck. Can, fitting tube by clamping screwing plug cap in to the container body opening neck outer surface
13 is forcibly pushed into the inner surface of the mouth and neck, and the diameter is reduced. At this time, the tip circle of the first engaging ridge 16 is formed to be substantially the same diameter or small diameter with respect to the inner diameter of the second engaging ridge 29. A cap-fitting container with an inner plug, characterized in that: 2. A lower half portion of the fitting tube portion is formed in a tapered shape having a large upper diameter and a lower end outer diameter smaller than an inner diameter of the mouth and neck portion. The cap-fitting container with an inner plug according to claim 1, wherein 3. A plurality of first engagement ridges 16 are provided at substantially equal intervals from the outer peripheral surface of the outward flange, and the first engagement ridges 16 and the respective band-shaped projections 15 are internally plugged. 3. The device according to claim 1, wherein the components are located on the same radiation as viewed from below.
The cap-fitting container with the inner plug according to the above. 4. The inner plug according to claim 1, wherein a nozzle is provided on a part of the top wall of the cap. 5. The nozzle is formed by a cylindrical body whose base end is pivotally mounted on the top wall of the cap so as to be freely undulated.
5. The inner plug according to claim 4, wherein a through hole 37 is formed in the top wall to communicate with the nozzle hole 35 when standing up and to be closed by the lower surface of the base end portion of the nozzle when lying down.