U.S. patent application number 11/589886 was filed with the patent office on 2007-05-03 for sealed container lid of vacuum valve operation type.
This patent application is currently assigned to Hana Cobi Co., Ltd.. Invention is credited to Chang-Ho Kim.
Application Number | 20070095849 11/589886 |
Document ID | / |
Family ID | 37685244 |
Filed Date | 2007-05-03 |
United States Patent
Application |
20070095849 |
Kind Code |
A1 |
Kim; Chang-Ho |
May 3, 2007 |
Sealed container lid of vacuum valve operation type
Abstract
A sealed container lid of a vacuum valve operation type is
provided, in which an engagement structure of a silicon packing is
simple, and a relatively strong sealing force is obtained. A
process for engaging or disengaging a lid to a container body may
be performed based one-touch method. The sealed contained lid of a
vacuum valve operation type comprises a body which is
injection-molded and has a circular groove formed in a horizontally
and outwardly opened shape for an engagement of the silicon
packing, and a downwardly bent peripheral part which is formed at
an outer peripheral part of the body based on a double injection
method while surrounding the same.
Inventors: |
Kim; Chang-Ho; (Incheon,
KR) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Assignee: |
Hana Cobi Co., Ltd.
|
Family ID: |
37685244 |
Appl. No.: |
11/589886 |
Filed: |
October 31, 2006 |
Current U.S.
Class: |
220/803 ;
220/806 |
Current CPC
Class: |
B65D 51/1683 20130101;
B65D 2543/00759 20130101; B65D 2543/0024 20130101; B65D 2543/00518
20130101; B65D 2543/00555 20130101; B65D 2543/00092 20130101; B65D
2543/00685 20130101; B65D 2543/00361 20130101; B65D 2543/00796
20130101; B65D 2543/00629 20130101; B65D 2543/0062 20130101; B65D
2543/00537 20130101; B65D 81/2038 20130101; B65D 43/0218
20130101 |
Class at
Publication: |
220/803 ;
220/806 |
International
Class: |
B65D 43/04 20060101
B65D043/04 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 1, 2005 |
KR |
10-2005-0103659 |
Claims
1. In a sealed container lid of a vacuum valve operation type which
includes a vacuum valve as operating with a certain pressure by
communicating an interior of a container body and the outside or
disconnecting the same, and a silicon packing for sealing the
interior of the container body in close contact with an inner wall
surface of the container body, a sealed contained lid of a vacuum
valve operation type, comprising: a body which is injection-molded
and has a circular groove formed in a horizontally and outwardly
opened shape for an engagement of the silicon packing; and a
downwardly bent peripheral part which is formed at an outer
peripheral part of the body based on a double injection method
while surrounding the same.
2. In a sealed container lid of a vacuum valve operation type which
includes a vacuum valve as operating with a certain pressure by
communicating an interior of a container body and the outside or
disconnecting the same, and a silicon packing for sealing the
interior of the container body in close contact with an inner wall
surface of the container body, a sealed contained lid of a vacuum
valve operation type, comprising: a body which is injection-molded
and has a circular groove formed in a horizontally and outwardly
opened shape for an engagement of the silicon packing; and a
downwardly bent peripheral part which is formed at an outer
peripheral part of the body based on a double injection method
while surrounding the same, said downwardly bent peripheral part
being separately formed and assembled at the body.
3. The lid of either claim 1 or claim 2, wherein said downwardly
bent peripheral part includes protrusions for enhancing an
engagement force with respect to the body.
Description
TECHNICAL FIELD
[0001] The present invention relates to a sealed container lid
having a vacuum valve.
BACKGROUND ART
[0002] Generally, according to a sealed container for sealingly
storing a certain stuff by covering a container body using a lid, a
packing is engaged at a container lid, and the packing keeps a
close contact with a rim of the container body. A sealed container
may be provided with a locking wing so as to obtain a sealed
engagement force of a lid.
[0003] However, in the case of an engagement method of a simple
structure lid, a sealing force is disadvantageously weak. In the
case of a locking wing method, a sealing force of the lid is good,
but opening and closing the locking wing causes many inconveniences
when in use.
[0004] As shown in FIG. 3, a vacuum valve 22 is engaged at a center
of the container lid 21. A silicon packing 23 is engaged near an
outer side of the container body. When the container lid 21 is
engaged with the container body 24, the silicon packing 23 is
closely contacted with an inner wall surface 25 of the container
body 24. In this state, the air of the container body 24 is
discharged to the outside through the vacuum valve 22 by pressing
the container lid 21. In the above state, a valve seat 26 is closed
by softly pressing the vacuum valve 22. A negative force is formed
in the container body 24 for thereby preventing the container lid
21 from being opened and obtaining a strong sealing force, so that
the foods stored in the interior of the container is safely stored.
In the above sealed container of a vacuum valve operation type,
when it is needed to open the container lid 21, the vacuum valve 22
is softly lifted, and the valve seat 26 is opened, so that the
inner space of the container body 24 communicates with the outside,
and a vacuum state does not occur for thereby easily separating the
container lid 21 from the container body 24. In the above
conventional art, the opening and closing operations of the lid are
easy, and a relatively strong sealing force is obtained.
[0005] However, in the above-described conventional sealed
container of a vacuum valve operation type, the container lid 21 is
made of a plastic material based on an injection method, whereas
the packing is made of a silicon rubber material. Namely, the
materials are different from each other. When the packing 23 is
engaged at the container lid 21, a vertically opened circular
groove 27 is formed at the container lid 21. A ring-shaped fixing
member 29 having a plurality of insertion protrusions 28 formed at
regular intervals is provided so as to obtain a certain fixing
force. The insertion protrusions 28 pass through the packing 23.
The fixing member 29 is inserted into the circular groove 27 for
thereby finishing an engagement of the packing 23. In this case, a
certain member (fixing member) is additionally needed so as to
engage the packing 23. Since an assembling process is further
needed, the mold and manufacture costs increase, and the
productivity decreases.
[0006] As shown in FIG. 4, a circular groove 30 provided for fixing
the packing 23 may be formed and opened in a horizontal direction.
When a silicon packing 23 having a relatively large elastic force
is extended so that the diameter increases, and is inserted into
the circular groove 30, the packing 23 is not easily escaped from
the circular groove 30 by a force as allowing the diameter to
decrease for thereby obtaining a relatively strong engaging force.
However, in the above conventional art, it is impossible to form
the circular groove as being opened in the horizontal direction due
to the following reasons. Namely, since a downwardly bent
peripheral part 31 is formed at an outer peripheral part of the
container lid 21 while surrounding the outer peripheral part 24a of
the container body 24, it is impossible to perform an injection
method so as to concurrently satisfy the design conditions of the
downwardly bent peripheral part 31 and the circular groove 30.
Namely, in the above structure, molds cannot be separated during
the manufacture. So, the conventional art of FIG. 4 may not be
actually adapted to the industry.
DISCLOSURE OF THE INVENTION
[0007] Accordingly, it is an object of the present invention to
provide a sealed container lid of a vacuum valve operation type
which overcomes the problems encountered in the conventional
art.
[0008] It is another object of the present invention to provide a
sealed container lid of a vacuum valve operation type in which an
engagement structure of a silicon packing is simple, and a
relatively strong sealing force is obtained. A process for engaging
or disengaging a lid to a container body may be performed based
one-touch method.
[0009] To achieve the above objects, in a sealed container lid of a
vacuum valve operation type which includes a vacuum valve as
operating with a certain pressure by communicating an interior of a
container body and the outside or disconnecting the same, and a
silicon packing for sealing the interior of the container body in
close contact with an inner wall surface of the container body,
there is provided a sealed contained lid of a vacuum valve
operation type which comprises a body which is injection-molded and
has a circular groove formed in a horizontally and outwardly opened
shape for an engagement of the silicon packing; and a downwardly
bent peripheral part which is formed at an outer peripheral part of
the body based on a double injection method while surrounding the
same.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The present invention will become better understood with
reference to the accompanying drawings which are given only by way
of illustration and thus are not limitative of the present
invention, wherein;
[0011] FIG. 1 is a view illustrating a sealed container lid of a
vacuum valve operation type according to the present invention;
[0012] FIG. 2 is a view illustrating a dual injection structure of
a sealed container lid of a vacuum valve operation type according
to an embodiment of the present invention;
[0013] FIG. 3 is a view of a conventional art; and
[0014] FIG. 4 is a view illustrating a container lid which may be
manufactured based on an injection method.
MODES FOR CARRYING OUT THE INVENTION
[0015] FIG. 1 is a view illustrating a sealed container lid of a
vacuum valve operation type according to the present invention, and
FIG. 2 is a view illustrating a dual injection structure of a
sealed container lid of a vacuum valve operation type according to
an embodiment of the present invention.
[0016] In the drawings, reference numeral 1 represents a container
lid, and 2 represents a container body in which the container lid 1
is opened and closed.
[0017] A vacuum valve 4 for an opening and closing operation of a
lid is engaged at a body 3 of the container lid 2. When a valve
seat 5 of the vacuum valve 4 is lifted off the valve seat 6, the
interior 8 of the container body 2 is opened through a valve hole 7
with respect to the outside. When it is pressed and is closely
contacted with the valve seat 6, the valve hole 7 is closed, and
the interior 8 of the container body 2 is disconnected with the
outside.
[0018] A circular groove 9 is formed at the body 3 in a horizontal
direction and is open in the outward direction. A silicon packing
10 having a smaller diameter and a high elastic force is formed at
the circular groove 9. When it is engaged, it is needed to enlarge
the diameter by pulling the same. A downwardly bent peripheral part
12 is engaged at an outer peripheral part 11 of the body 3 while
surrounding a peripheral part 2a of the body 2.
[0019] In the present invention, the body 3 is first manufactured
based on the injection method and is provided with an opened
circular groove 9 as being horizontally formed in an outward
direction. The downwardly bent peripheral part 12 is formed at the
body 3 based on a double injection method. The silicon packing 10
is inserted into the circular groove 9 for thereby finishing the
manufacture of the lid 1.
[0020] When the downwardly bent peripheral part 12 is formed at the
body 3 based on the double injection method, it is preferred to
provide protrusions 13 and 14 so as to obtain a certain
durability.
[0021] According to another embodiment of the present invention,
the downwardly bent peripheral part 12 may be separately
manufactured and assembled at the body 3 as compared to the earlier
described method in which the downwardly bent peripheral part 12 is
formed on the body 3 based on the double injection method.
[0022] In the present invention, when the lid 1 is engaged at the
container body, the silicon packing 10 is closely contacted with
the inner wall surface 15 of the container body 2. When the body 3
of the container lid 1 is softly pressed, the air of the interior
of the container body 2 is discharged to the outside through the
valve hole 7. At this time, when the valve seat 5 is closely
contacted with the valve seat 6 by softly pressing the vacuum valve
4, the interior 8 of the container body 2 is disconnected from the
outside. When the pressed body 3 returns to its original position
by the elastic force, since a certain vacuum pressure is formed in
the interior, it is possible to prevent the lid 1 from being opened
based on a generation of negative pressure in the container. So, it
is possible to obtain a strong sealing force.
[0023] When it is needed to separate the container lid 1 from the
container body 2, the vacuum valve 4 is lifted upward, so that a
valve assembly 5 is separated from the valve seat 6. The vacuum of
the interior 8 of the container body 2 disappears, so that the
inner and outer spaces communicate. As air is freely inputted from
the outside into the interior based on the above communication, the
container lid 1 can be easily opened.
[0024] Here, the silicon packing 10 is not easily escaped even if a
certain fixing member is not used in the present invention. Namely,
the silicon packing 10 is elastically extended and inserted into
the circular groove 9, so that it is not easily escaped due to a
strong inward contraction force.
[0025] As described above, a downwardly bent peripheral part as
surrounding an outer peripheral part of the container body may be
formed on a lid body based on a double injection method or may be
separately manufactured and assembled. A circular groove for an
engagement of a silicon packing is formed at the lid body in a
horizontally and outwardly opened shape, not in a vertical
direction. So, it is possible to obtain a stable engagement without
using an additional fixing member of the silicon packing. The
assembling process decreases, and the productivity is enhanced. The
manufacture cost advantageously decreases.
[0026] As the present invention may be embodied in several forms
without departing from the spirit or essential characteristics
thereof, it should also be understood that the above-described
examples are not limited by any of the details of the foregoing
description, unless otherwise specified, but rather should be
construed broadly within its spirit and scope as defined in the
appended claims, and therefore all changes and modifications that
fall within the meets and bounds of the claims, or equivalences of
such meets and bounds are therefore intended to be embraced by the
appended claims.
* * * * *