JPS6090143A - Sealing device for storage vessel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a storage container closure device:
4. A cylindrical throat opening and a seal that can be placed loosely on the second range within the throat opening or tightly placed on the second range in an mIR manner. (Relating to an improved closure device for containers containing 17).

Situations may arise where a sealable container is required for long or medium term storage of an article or substance, but where the container may be easily opened due to frequent or repeated access to the contents of the container. It is desirable that the One common case is to use a water bar to store or transport ice cubes, and then, following or prior to that, use the same bar to store or transport ice cubes at a party or social gathering, such as a party. It is to distribute ice to the gathering. While a tight, aggressive seal is preferred during transportation and storage, a loose, easy-to-open seal is preferred during frequent access to ice at gatherings.

Conventionally available storage containers are equipped with closure devices that are intended to be tightly sealed or loosely covered, and are not intended for dual use.

Although it may be possible to loosely cover a container with a lid that is intended to provide a tight seal, typically no device is provided to maintain the lid in the correct orientation and relationship with the container.

For example, the lids may rest at an angle, leave gaps, or become joined or stuck together. Similarly, containers equipped with closures that are intended to be loose-fitting are typically not equipped with the means to obtain a tight seal using the same parts.

U.S. Pat. No. 3,756,480, which is incorporated herein by reference, includes a sealing member configured to be expandable and contractible, having an elastic restoring force, and capable of being locally strained; A three-piece pressurized seal adapted to hermetically seal an open-mouthed container is disclosed. The seal has a circumferential bead that allows the bead to converge from a first diameter to a smaller second diameter for 1 h by depressing a plunger that strains a sealing member integrally formed with the bead. Also, l'J
i'; an approximately circular throat with an i-shaped wall and an annular ledge t! below the cylindrical wall which is sealingly engaged by the seal bee 1'; : To tightly close the container with , this e1′
, discloses the use of eel seals.

Therefore, there is a need for a container closure device that is compatible with two closure methods. Thus, in the first closure mode, the closure rests loosely on the container and can be easily removed or removed, whereas in the second closure, the closure tightly seals the container. Furthermore, it is sealed like this! A place is engineering! It is desirable to have thermal insulation properties when used in containers with thin or cold contents.

The present invention provides a sealing member having an elastically strainable sealing member with a circumferential beat' selectively retractable from a first bead diameter to a second smaller bead diameter; The foregoing needs are met by providing a closure device for a container having a portion. The throat of the container includes a substantially cylindrical upper wall portion of diameter greater than the first bead diameter and an adjacent substantially cylindrical upper wall portion of diameter less than the first bead diameter but not less than the second bead diameter. A lower wall portion is formed. A second annular range projecting inward is fired just below the lower wall portion. When the closure is loosely placed on the container, the peripheral bead
It rests on and rests on the first lunge which is surrounded or unengaged by the upper wall portion. When the peripheral bead is selectively contracted by the straining force, the closure member can be further inserted into the throat of the container and the peripheral bead rests and rests on the second ledge. The strain force is then released and the peripheral bead enters sealing engagement with the lower wall portion and seats on the second ledge.

According to features of a preferred embodiment of the invention, the sealing member is provided as a three-piece pressurized seal according to the disclosure of US Pat. No. 3,756,480. According to another feature, the container is expected to be an ice phase brush or the like. In a preferred embodiment, three parts)
The dead space within the u-pressure seal is used in a novel way for thermal insulation.

Other features and features of the invention will emerge from the following detailed description of a preferred embodiment.

As a disclosure of a preferred embodiment and not as a limitation of the invention, FIGS. 1 and 2 illustrate a container 10 and a seal 11.
An ice phase bucket with and is shown. The container 10 is substantially cylindrical in shape with a closed bottom and a generally circular knee-shaped throat opening. A leak-tight seal 11, indicated at 16, lies within the throat of the container 10. On the container 10 there is an upper circumferential rim 12. The seal 11 has, at its center, It has a protruding plunger 13 surrounded by an overhanging flange 14.

As best shown in FIG. 3, the container 10 is constructed in two parts, an outer container 17 and an inner container 16 nested within the outer container 17. The inner volume 2:r 16 and the outer container 17 each have a substantially cylindrical wall 18.19 and a substantially planar bottom 21.22, respectively. The outer container 17 is somewhat larger than the inner container 16, and a dead space 23 is formed between both containers 16 and 17.

Surrounding the upper area of the outer container 17 is a flange having a horizontal annular portion 24, a depending cylindrical portion 26 and an upright slightly outwardly projecting portion 27. Surrounding the upper area of the inner container 1G is a second horizontal annular portion 28 with a second depending portion 29 around the periphery. The inner container 16 and the outer container 17 are made of a resilient material such as polypropylene and polyethylene and are integrally formed by resiliently retaining the inside of the second depending portion with the outside of the upright portion 27 in a well-known manner. However, it is preferable to form the container 10 which is also decomposable.

As best seen in Figures 5 and 6, the inner container 1
In the upper area of the wall 18 of 6, a throat opening L1 25 is formed which is substantially circular in plan view. Throat opening part 2
A substantially cylindrical first wall portion 31 is formed within 5 . Below and adjacent to the first Ii portion 31 and within the throat opening 25 , a substantially cylindrical second wall portion 32 is formed having a diameter smaller than the diameter of the first wall portion 31 . Between the first wall portion 31 and the second wall portion 32, an annular inwardly extending annular groove 33 is formed.

A second ledge 34 is formed below the second wall portion 32 and extends inwardly into an annular shape. Therefore, there are upper and lower concentric ranges, and the upper first range 33 is the lower second range.
It has a larger diameter than the ledge 34.

FIG. 3 shows a seal 11 that tightly covers the container 10 to prevent leakage. The seal is U.S. Patent No. 3+75
6+4804, and reference should be made to this 11:'r document in lieu of a detailed description of its structure and operation. Briefly, in its general configuration, the seal 11 includes a permanently deformable sealing member 36.
, a top wall 37 , and a pusher 13 . The rim around the seal portion 4A36 includes a bead portion 38 and an upright rim 39.

The upper edge of rim 39 engages the circumferential edge of top wall 37.

Bead portion 38 has a circumferential outer edge 41 and a lower side 42 . The dimensions of the throat opening 25 of the inner container 1G and the seal II are such that when the old seal 36 is loosened and in a state without distortion, the inner diameter of the first wall portion 31 is smaller than the outer diameter of the outer edge 41 of the bead. It is slightly larger and dimensioned so that the inner diameter of the second wall portion 32 is slightly smaller than the outer diameter of the outer edge 41 of the bead. Furthermore, the sealing member 36 is in an undistorted state and the bead is in an undistorted state. (The inner diameter of the second wall portion 32 is substantially equal to or slightly larger than the outer diameter of the outer edge 41 of the bead.

Figures 3 and 4 show two types of closure of the closure device of the invention. In FIG. 3, the sealing device is in a tight sealing mode. The seal 11 is prepared for insertion by depressing the plunger 13, during which the plunger 13
act on the center of the seal member 36 to cause a strain in the seal member 36 sufficient to bring the underside of the bead into contact with the second ledge 34 and insert the seal 11 into the throat opening 25. Fit the bead portion 3B to a small diameter 1111-
Uro.

After insertion, plunger 13 is released and sealing member 36
The elastic force uniformly pushes the bead portion 3B outward.

Thus, the container 10 holds the outside 8 (41) of the beet' together with the second wall portion 32 and the underside 42 of the beet '
Seated on ledge: 34 (tightly sealed).
Seal 11 can be removed by reversing the method described above.

In FIG. 4, the closure device is shown in a loosely covering manner. The seal 11 is inserted unstrained into the throat opening 25 until the underside 42 of the bead rests on the top of the first lustrium 33. A small annular gap is formed between the outer edge 41 of the bead and the first wall portion 31. Seal 11 has +JE without wedging or bonding action.
Centered and horizontally oriented. There is no gap left between the lower side 42 of the heat and the first 33. Seal 11 can be easily removed and replaced.

According to the preferred implementation <Pillar B, the first ledge 33, the second ledge 34 and the underside 41 of the bead are equally sloped, thereby giving the seal 11 a centering effect. The first wall portion 31 and the second wall portion 32 are substantially cylindrical in shape to aid in centering the seal 11 and to facilitate removal of the container from the mold during manufacture. , both wall sections 3
It is desirable to form an upward and outward pulling angle at (1) and (32).

In a preferred embodiment, this pulling angle is 1 degree from vertical. Although the range must be close enough to the horizontal to avoid wedging, it is within the scope of the present invention to provide other lift angles and slopes of the ledge.

When the present invention is practiced according to a preferred embodiment, the dead space 43 of the seal 11 between the seal member 36 and the top wall 37 is useful for thermally insulating the contents of the container 1. That will be explained to you. Of course,
It should be understood that the sealing device of the present invention is not limited to use in ice phase brushes or other thermal mass applications.

Although the invention has been described with respect to certain preferred embodiments, it is desirable to embody all modifications and changes that fall within the scope of the granted patent and within the scope of the invention's contribution to the art. A. You should understand that.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a water tank for seedlings, which embodies the present invention. 2 is a top and bottom view of the ice phase brush of FIG. 1; FIG. No. 31-1 is a 1υ1 side inI view of the cotton 3-3 in FIG. 2 as seen along the direction of the arrow. No. 4121 is a partial sectional view similar to the one shown in FIG.
ζ indicates the position where the sticker is placed loosely. FIG. 5 is a view similar to FIG. 4, but with the seal removed. No. 6I2J is a top view 51' of the water brush of FIG. 1, with the seal removed. 25... Throat opening 11... Sealing device 10... Capacity 2:; 38... Surrounding bead portion 36... Sealing member 31 ...First wall portion 32...Second wall portion 33...First annular ledge 34...Second annular ledge 43... de7dospace

Claims (1)

[Claims] (1) A sealing device for a container 10 having a substantially circular throat opening 25 and a sealing portion 4A11, wherein the sealing member 11 has a second bead diameter smaller than the first bead diameter. A member of the type comprising an elastically deformable seal member 36 having a peripheral bead portion 38 selectively retractable to a bead diameter, said bead portion releasably sealingly engaging the inner surface of said throat opening. In the sealing device: a first wall portion formed within the opening having a diameter greater than the first bead diameter;
a second wall portion 32 having a diameter less than a bead diameter and at least equal to the second bead diameter and formed within the throat opening adjacent and below the first wall portion; A closure device for a container comprising: a first annular ledge 33 disposed between and extending inwardly between the second wall portion; and a second annular ledge 34 extending inwardly below the second wall portion. (2) The sealing device according to claim 1, wherein the sealing member is a three-component pressurized seal. (Dead space 43 in the pressurized seal of 3136B product)
3. The sealing device according to claim 2, wherein the sealing device is used for heat insulation. (4) The sealing device according to claim 1, wherein the container is a Honkawa bucket. (5) The sealing device according to claim 1, wherein the first annular range, the second annular range, and the lower side of the bead portion are equally inclined downward and inward. (6) A sealing device according to claim 1, wherein the first wall portion and the second wall portion are substantially cylindrical. (7) The sealing device according to claim 1, characterized in that the bead portion rests on the first annular range to loosely cover the container. 8. A closure device as claimed in claim 1, characterized in that the bead portion is a scale seated on the second annular range to tightly seal the container.