U.S. patent number RE46,305 [Application Number 15/055,273] was granted by the patent office on 2017-02-14 for airtight cosmetic container.
The grantee listed for this patent is Jae Sam Byeon. Invention is credited to Jae Sam Byeon.
United States Patent |
RE46,305 |
Byeon |
February 14, 2017 |
**Please see images for:
( Certificate of Correction ) ** |
Airtight cosmetic container
Abstract
An airtight cosmetic container in which an inner container (200)
and an inner cover (300) can be airtightly sealed without using a
separate rubber seal while compensating for a diameter deviation
caused by a molding error of the inner cover (300). The inner
container (200) includes a packing case (220) in which a cosmetic
tray is installed, and which includes inner and outer elastic
sidewalls (222, 223) that form a seal groove (221) therebetween, so
a sealing rib (320) of the inner cover (300) is inserted into the
seal groove (221), with inner and outer curved protrusions (222a,
223a) protruding toward each other on opposed surfaces of the inner
and outer elastic sidewalls so as to come into elastic close
contact with the inner and outer circumferential surfaces of the
sealing rib (320) inserted in the seal groove (221), thereby
realizing an airtight sealing effect.
Inventors: |
Byeon; Jae Sam (Sejong-si,
KR) |
Applicant: |
Name |
City |
State |
Country |
Type |
Byeon; Jae Sam |
Sejong-si |
N/A |
KR |
|
|
Family
ID: |
48192332 |
Appl.
No.: |
15/055,273 |
Filed: |
February 26, 2016 |
PCT
Filed: |
October 31, 2012 |
PCT No.: |
PCT/KR2012/009035 |
371(c)(1),(2),(4) Date: |
May 01, 2014 |
PCT
Pub. No.: |
WO2013/066035 |
PCT
Pub. Date: |
May 10, 2013 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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Reissue of: |
14355763 |
Oct 31, 2012 |
9210984 |
Dec 15, 2015 |
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Foreign Application Priority Data
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Nov 2, 2011 [KR] |
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10-2011-0113400 |
Oct 29, 2012 [KR] |
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10-2012-0120337 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A45D
33/006 (20130101); A45D 33/00 (20130101); A45D
2200/051 (20130101); A45D 40/221 (20130101) |
Current International
Class: |
A45D
33/00 (20060101); A45D 33/22 (20060101); A45D
40/22 (20060101) |
Field of
Search: |
;220/366.1,592.2
;132/293-295,300,305 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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2000-225020 |
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Aug 2000 |
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JP |
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20-0200762 |
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Oct 2000 |
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KR |
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20-0200762 |
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Oct 2000 |
|
KR |
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20-0372923 |
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Jan 2005 |
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KR |
|
20-0372923 |
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Jan 2005 |
|
KR |
|
20-0429553 |
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Oct 2006 |
|
KR |
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20-0429553 |
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Oct 2006 |
|
KR |
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10-0653639 |
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Dec 2006 |
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KR |
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10-0653639 |
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Dec 2006 |
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KR |
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20-0438483 |
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Feb 2008 |
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KR |
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20-0438483 |
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Feb 2008 |
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KR |
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10-1033005 |
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May 2011 |
|
KR |
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10-1033005 |
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May 2011 |
|
KR |
|
Primary Examiner: Flanagan; Beverly M
Attorney, Agent or Firm: Novick, Kim & Lee, PLLC Lee;
Sang Ho
Claims
The invention claimed is:
1. An airtight cosmetic container.[.,.]. comprising: a container
body; an inner container installed in the container body and
containing a cosmetic material therein; an inner cover rotatably
and openably combined with a side of the inner container and having
a sealing rib that comes into close contact with an upper end
surface of the inner container by a pressing force of a pressure
protrusion; and an outer lid combined with a side recess of the
container body by a hinge bracket and having a locking protrusion
at a portion opposed to the hinge bracket so as to be locked to a
locking step of a locking hole of a push button mounted to the
container body at a portion opposed to the side recess, so, when
the outer lid is closed, the outer lid brings the sealing rib into
close contact with the inner container by pressing a pressure
protrusion of the inner cover, and when the push button is pushed
so as to release the locking protrusion, the outer lid is opened;
wherein the inner container includes a cosmetic tray.[.,.]. and a
packing case in which the cosmetic tray is installed and a hinge
bracket is provided so as to be combined with a hinge bracket of
the inner cover.[.;.]..Iadd.,.Iaddend. wherein the packing case
includes .Iadd.an .Iaddend.inner .Iadd.elastic sidewall
.Iaddend.and .Iadd.an .Iaddend.outer elastic .[.sidewalls.].
.Iadd.sidewall .Iaddend.that .[.form.]. .Iadd.defines .Iaddend.a
seal groove therebetween, so the sealing rib of the inner cover is
inserted into the seal groove, with .Iadd.at least one of an
.Iaddend.inner .Iadd.curved protrusion .Iaddend.and .Iadd.an
.Iaddend.outer curved .[.protrusions protruding toward each other
on opposed surfaces of.]. .Iadd.protrusion disposed on at least one
of .Iaddend.the inner .Iadd.sidewall .Iaddend.and .Iadd.the
.Iaddend.outer elastic .[.sidewalls so as to come into elastic
close.]. .Iadd.sidewall, respectively, wherein the outer curved
protrusion is in .Iaddend.contact with .[.inner and outer
circumferential surfaces of.]. the sealing rib inserted in the seal
groove, thereby realizing an airtight sealing
effect.[.;.]..Iadd.,.Iaddend. wherein the container body includes a
lower case to which the push button is mounted, and an outer
support case that is seated in a seat of the lower case and has a
through hole through which the locking protrusion of the outer lid
passes.[.;.]..Iadd.,.Iaddend. wherein the packing case is seated in
the seat of the lower case in such a way that the outer elastic
sidewall of the packing case is fitted and held in an inner
circumferential surface of the outer support case, and the inner
elastic sidewall of the packing case is held by an outer
circumferential surface of an inner support case that is fitted
over an outer circumferential surface of the cosmetic
tray.[.;.]..Iadd., .Iaddend.and wherein, to allow the inner and
outer elastic sidewalls to be opened, the packing case is assembled
with the inner and outer support cases in such a way that a
predetermined gap is defined between inner and outer
circumferential surfaces of the inner and outer elastic sidewalls
and inner and outer circumferential surfaces of the inner and outer
support cases.
2. An airtight cosmetic container.[.,.]. comprising: a container
body; an inner container installed in the container body and
containing a cosmetic material therein; an inner cover rotatably
and openably combined with a side of the inner container and having
a sealing rib that comes into close contact with an upper end
surface of the inner container by a pressing force of a pressure
protrusion; and an outer lid combined with a side recess of the
container body by a hinge bracket and having a locking protrusion
at a portion opposed to the hinge bracket so as to be locked to a
locking step of a locking hole of a push button mounted to the
container body at a portion opposed to the side recess, so, when
the outer lid is closed, the outer lid brings the sealing rib into
close contact with the inner container by pressing a pressure
protrusion of the inner cover, and when the push button is pushed
so as to release the locking protrusion, the outer lid is opened;
wherein the inner container includes a cosmetic tray, and a packing
case in which the cosmetic tray is installed and a hinge bracket is
provided so as to be combined with a hinge bracket of the inner
cover; wherein the packing case includes .Iadd.an .Iaddend.inner
.Iadd.elastic sidewall .Iaddend.and .Iadd.an .Iaddend.outer elastic
.[.sidewalls.]. .Iadd.sidewall .Iaddend.that .[.form.].
.Iadd.defines .Iaddend.a seal groove therebetween, so the sealing
rib of the inner cover is inserted into the seal groove, with
.Iadd.at least one of an .Iaddend.inner .Iadd.curved protrusion
.Iaddend.and .Iadd.an .Iaddend.outer curved .[.protrusions
protruding toward each other on opposed surfaces of.].
.Iadd.protrusion disposed on at least one of .Iaddend.the inner
.Iadd.sidewall .Iaddend.and .Iadd.the .Iaddend.outer elastic
.[.sidewalls so as to come into elastic close.]. .Iadd.sidewall,
respectively, wherein the outer curved protrusion is in
.Iaddend.contact with .[.inner and outer circumferential surfaces
of.]. the sealing rib inserted in the seal groove, thereby
realizing an airtight sealing effect.[.;.]..Iadd.,.Iaddend. wherein
an air vent groove is .[.formed on.]. .Iadd.defined on at least one
of .Iaddend.an inner circumferential surface of the outer elastic
sidewall .Iadd.and a lower part of the outer circumferential
surface of the sealing rib of the inner cover, and wherein the air
vent groove is defined either .Iaddend.by extending from an upper
end of the inner circumferential surface of the outer elastic
sidewall to a middle portion of the outer curved protrusion, so,
when the outer lid is closed, a lower surface of the inner cover
comes into airtight close contact with the packing case of the
inner container .Iadd.or by being disposed on a lower part of the
outer circumferential surface of the sealing rib of the inner
cover, so, when the sealing rib of the inner cover is inserted into
the seal groove of the packing case by a pressing force of the
outer lid, a lower surface of the inner cover comes into airtight
close contact with the packing case while air is expelled through a
gap formed between the air vent groove and the outer curved
protrusion of the outer elastic sidewall.Iaddend..
3. The airtight cosmetic container as set forth in claim 2, wherein
the inner elastic sidewall of the packing case has a height lower
than a height of the outer elastic sidewall, and the sealing rib of
the inner cover is provided with a downward inclined surface on the
inner circumferential surface thereof so as to come into contact
with the curved protrusion of the inner elastic sidewall.
.[.4. An airtight cosmetic container, comprising: a container body;
an inner container installed in the container body and containing a
cosmetic material therein; an inner cover rotatably and openably
combined with a side of the inner container and having a sealing
rib that comes into close contact with an upper end surface of the
inner container by a pressing force of a pressure protrusion; and
an outer lid combined with a side recess of the container body by a
hinge bracket and having a locking protrusion at a portion opposed
to the hinge bracket so as to be locked to a locking step of a
locking hole of a push button mounted to the container body at a
portion opposed to the side recess, so, when the outer lid is
closed, the outer lid brings the sealing rib into close contact
with the inner container by pressing a pressure protrusion of the
inner cover, and when the push button is pushed so as to release
the locking protrusion, the outer lid is opened; wherein the inner
container includes a cosmetic tray, and a packing case in which the
cosmetic tray is installed and a hinge bracket is provided so as to
be combined with hinge bracket of the inner cover; wherein the
packing case includes inner and outer elastic sidewalls that form a
seal groove therebetween, so the sealing rib of the inner cover is
inserted into the seal groove, with inner and outer curved
protrusions protruding toward each other on opposed surfaces of the
inner and outer elastic sidewalls so as to come into elastic close
contact with inner and outer circumferential surfaces of the
sealing rib inserted in the seal groove, thereby realizing an
airtight sealing effect; and wherein an air vent groove is formed
on a lower part of the outer circumferential surface of the sealing
rib of the inner cover, so, when the sealing rib of the inner cover
is inserted into the seal groove of the packing case by a pressing
force of the outer lid, a lower surface of the inner cover comes
into airtight close contact with the packing case while air is
expelled through a gap formed between the air vent groove and the
outer curved protrusion of the outer elastic sidewall..].
5. The airtight cosmetic container as set forth in claim .[.4.].
.Iadd.2.Iaddend., wherein the inner elastic sidewall of the packing
case has a height lower than a height of the outer elastic
sidewall, and the sealing rib of the inner cover is provided with a
downward inclined surface on the inner circumferential surface
thereof so as to come into contact with the curved protrusion of
the inner elastic sidewall.
6. An airtight cosmetic container.[.,.]. comprising: a container
body; an inner container installed in the container body and
containing a cosmetic material therein; an inner cover rotatably
and openably combined with a side of the inner container and having
a sealing rib that comes into close contact with an upper end
surface of the inner container by a pressing force of a pressure
protrusion; and an outer lid combined with a side recess of the
container body by a hinge bracket and having a locking protrusion
at a portion opposed to the hinge bracket so as to be locked to a
locking step of a locking hole of a push button mounted to the
container body at a portion opposed to the side recess, so, when
the outer lid is closed, the outer lid brings the sealing rib into
close contact with the inner container by pressing a pressure
protrusion of the inner cover, and when the push button is pushed
so as to release the locking protrusion, the outer lid is opened;
wherein the inner container includes a cosmetic tray.[.,.]. and a
packing case in which the cosmetic tray is installed and a hinge
bracket is provided so as to be combined with a hinge bracket of
the inner cover.[.;.]..Iadd.,.Iaddend. wherein the packing case
includes .Iadd.an .Iaddend.inner .Iadd.elastic sidewall
.Iaddend.and .Iadd.an .Iaddend.outer elastic .[.sidewalls.].
.Iadd.sidewall .Iaddend.that .[.form.]. .Iadd.defines .Iaddend.a
seal groove therebetween, so the sealing rib of the inner cover is
inserted into the seal groove, with .Iadd.at least one of an
.Iaddend.inner .Iadd.curved protrusion .Iaddend.and .Iadd.an
.Iaddend.outer curved .[.protrusions protruding toward each other
on opposed surfaces of.]. .Iadd.protrusion disposed on at least one
of .Iaddend.the inner .Iadd.sidewall .Iaddend.and .Iadd.the
.Iaddend.outer elastic .[.sidewalls so as to come into elastic
close.]. .Iadd.sidewall, respectively, wherein the outer curved
protrusion is in .Iaddend.contact with .[.inner and outer
circumferential surfaces of.]. the sealing rib inserted in the seal
groove, thereby realizing an airtight sealing
effect.[.;.]..Iadd.,.Iaddend. wherein the container body includes a
lower case to which the push button is mounted, and an outer
support case that is seated in a seat of the lower case and has a
through hole through which the locking protrusion of the outer lid
passes; wherein the packing case is seated in the seat of the lower
case in such a way that the outer elastic sidewall of the packing
case is fitted and held in an inner circumferential surface of the
outer support case, and the inner elastic sidewall of the packing
case is held by an outer circumferential surface of an inner
support case that is fitted over an outer circumferential surface
of the cosmetic tray; and wherein a lower part of an outer
circumferential surface of the outer support case has an uneven
surface and is combined with an uneven inner circumferential
surface of a support ring protruding upward from the seat of the
lower case, and wherein the packing case is seated in the seat of
the lower case in such a way that the outer elastic sidewall is
held in the inner circumferential surface of the outer support
case, and an uneven inner circumferential surface of the inner
elastic sidewall of the packing case is combined with a lower part
of an uneven outer circumferential surface of the inner support
case that is fitted between the inner circumferential surface of
the inner elastic sidewall and an outer circumferential surface of
the cosmetic tray.
.Iadd.7. An airtight cosmetic container comprising: a packing case
including an inner elastic sidewall and an outer elastic sidewall
that define a seal groove therebetween; an inner cover rotatably
and openably combined with the packing case and including a sealing
rib corresponding to the seal groove; a protrusion disposed between
the packing case and the inner cover, making at least one of the
inner elastic sidewall and the outer elastic sidewall to be in
contact with the sealing rib; and at least one air vent groove
defined on an inner circumferential surface of the outer elastic
sidewall by extending from an upper end of the inner
circumferential surface of the outer elastic sidewall in a
direction to a portion of the protrusion, wherein when an outer lid
is closed, air is expelled from the packing case through the at
least one air vent groove and a lower surface of the inner cover
comes into airtight close contact with the packing
case..Iaddend.
.Iadd.8. The airtight cosmetic container of claim 7, wherein the at
least one air vent groove is defined on the
protrusion..Iaddend.
.Iadd.9. The airtight cosmetic container of claim 7, wherein the at
least one air vent groove is defined on an outer surface of the
sealing rib..Iaddend.
.Iadd.10. The airtight cosmetic container of claim 7, wherein the
at least one air vent groove is defined on a lower part of the
sealing rib..Iaddend.
.Iadd.11. The airtight cosmetic container of claim 7, wherein the
outer elastic sidewall has higher ductility and elasticity compared
with the sealing rib..Iaddend.
.Iadd.12. The airtight cosmetic container of claim 11, wherein,
upon an insertion of the sealing rib to the seal groove, the outer
elastic sidewall is elastically expanded..Iaddend.
.Iadd.13. The airtight cosmetic container of claim 7, wherein the
packing case includes a container hinge bracket, and wherein the
cover includes a cover hinge bracket which is combined with the
container hinge bracket, and wherein an inner diameter (D) of a
shaft hole of the container hinge bracket is larger than an outer
diameter of a hinge shaft combined with the cover hinge bracket and
when the hinge shaft is rotated in the shaft hole, the hinge shaft
is movable in the shaft hole..Iaddend.
.Iadd.14. The airtight cosmetic container of claim 7, wherein the
inner elastic sidewall has a height smaller than a height of the
outer elastic sidewall..Iaddend.
.Iadd.15. The airtight cosmetic container of claim 7, wherein the
sealing rib has a tapered thickness..Iaddend.
.Iadd.16. The airtight cosmetic container of claim 7, further
comprising: a container body including the packing case; and an
outer lid coupled to a container body and interposing the inner
cover and an inner container between the outer lid and the
container body..Iaddend.
.Iadd.17. The airtight cosmetic container of claim 16, wherein the
packing case is installed in the container body and a predetermined
gap is defined between outer surfaces of the outer elastic sidewall
of the packing case and inner surfaces of the container
body..Iaddend.
.Iadd.18. The airtight cosmetic container of claim 16, wherein a
pressure protrusion is disposed on the inner cover being pressed by
the outer lid when the outer lid is closed..Iaddend.
.Iadd.19. The airtight cosmetic container of claim 7, wherein the
protrusion is only disposed on the outer elastic sidewall being in
contact with the sealing rib..Iaddend.
Description
.Iadd.CROSS REFERENCE TO RELATED APPLICATIONS.Iaddend.
.Iadd.This application is a reissue application of U.S. application
Ser. No. 14/355,763 filed on May 1, 2014, which was issued as U.S.
Pat. No. 9,210,984 on Dec. 15, 2015, and is a national-stage entry
under 35 USC 371 of PCT/KR2012/009035 filed on Oct. 31, 2012, which
claims priority to Korean Patent Application Nos. 10-2012-0120337
and 10-2011-0113400 filed on Oct. 29, 2012, and Nov. 2, 2011,
respectively, the contents of which are all hereby incorporated by
reference herein in their entirety..Iaddend.
TECHNICAL FIELD
The present invention relates, in general, to a cosmetic container
having an airtight function and, more particularly, to an airtight
cosmetic container in which an airtight sealing effect between an
inner container and an inner cover can be realized without using a
separate rubber seal (airtight seal member), and which can
efficiently compensate for a difference of diameters between
elements caused by a molding error of the inner cover, thereby
always realizing airtight sealing of the inner container and
efficiently preventing deformation of elements irrespective of use
of the container over a long period of time, and easily opening and
closing the container, and in which, when closing an outer lid, the
inner cover comes into close contact with the inner container while
expelling air from the inner container, thereby efficiently
maintaining the desired airtight sealing effect of the container
and providing products having improved qualities.
BACKGROUND ART
Generally, tinting cosmetic materials include volatile solvents
therein, so, if a container that contains such a tinting cosmetic
material therein fails to maintain a desired airtight sealing
function while being kept, the cosmetic material may easily change
in quality.
For example, when a cosmetic container that contains foundation
used as a base for facial makeup fails to maintain an airtight
sealing function, moisture and volatile ingredients of the
foundation will vaporize, so the foundation may lose its intrinsic
pleasant fragrance and may become hard and easily crack, and the
expected life span of the foundation may be shortened.
In an effort to solve the problems, the cosmetic container for
containing the tinting cosmetic material is typically configured to
prevent the tinting cosmetic material contained therein from
changing in quality by providing an airtight structure capable of
airtightly closing the inner container when closing the outer lid
of the cosmetic container.
In the related art, to provide cosmetic containers having airtight
structures, various techniques are proposed. Conventional airtight
cosmetic containers are classified into two types: a cosmetic
container having a lock type opening/closing structure in which an
outer lid hinged to an outer container is opened or closed by
operating a lock provided in a part opposed to the outer lid, and a
cosmetic container having a threaded type opening/closing structure
in which an outer lid hinged to an outer container is opened or
closed by rotating internal and external threads in a state in
which the outer lid is being closed.
When compared to the latter container that is the container having
the threaded type opening/closing structure, the former container
that is the container having the lock type opening/closing
structure is problematic in that the pressing force of a sealing
rib provided in the outer lid is lower than the pressing force of
the container having the threaded type opening/closing structure,
so the airtight sealing effect formed between the outer lid and the
inner container of the cosmetic container having the lock type
opening/closing structure gradually becomes reduced. However, the
cosmetic container having the lock type opening/closing structure
is advantageous in that the outer lid can be easily and simply
opened by a one-step process of pressing a button.
Accordingly, the most important technique required by the cosmetic
container having the lock type opening/closing structure is a
technique that can maximize the airtight sealing effect of the
container which can isolate the content contained in the inner
container from the environment.
In the conventional airtight cosmetic containers having the lock
type opening/closing structures, the methods of realizing the
airtight sealing effect of a cosmetic receiving container (inner
container) that contains a cosmetic material therein are classified
into two types: a first method in which the airtight sealing effect
for the container is realized by compressing a hard rib integrated
with an outer lid onto a rubber seal (airtight seal member), and a
second method in which the airtight sealing effect of the container
is realized by airtight contact formed by a combination of airtight
contact parts of injection-molded elements.
The first method of realizing the airtight sealing effect using the
rubber seal is problematic in that, although the method can provide
desired airtight sealing effect within a predetermined initial
period of time after a new container is used, the performance of
the soft rubber seal may gradually change by the repeated
compression of the hard plastic rib onto the rubber seal when
repeatedly using the container over a long period of time, so the
airtight function of the container will be gradually reduced.
The second method of realizing the airtight sealing effect using
injection-molded elements is problematic in that, although the
method can provide high work efficiency during a process of
assembling the container because the method does not require a
separate rubber seal, a seal seat for holding the rubber seal or a
process of assembling the rubber seal with the seal seat, the
method does necessarily require an airtight structure formed by the
airtight contact parts that come into close contact with each other
to realize the airtight sealing effect of an inner container
(cosmetic receiving container) made of a plastic material
(synthetic resin).
The present invention relates to an airtight cosmetic container
having the lock type opening/closing structure which can realize a
desired airtight sealing effect without using a separate rubber
seal.
Examples of such airtight cosmetic containers may be referred to
Korean Utility Model Registration No. 20-0200762 (registered on
Aug. 11, 2000; patent document 1), and Korean Patent No. 10-1033005
(registered on Apr. 27, 2011; patent document 2).
Patent document 1 discloses a technique in which, when an upper
case is closed, the sidewall of an inner cover comes into close and
pressure contact with an outward inclined surface provided on an
upper part of the outer circumferential surface of an inner
container installed in a lower case, thereby realizing an airtight
sealing effect for the interior of the inner container.
Patent document 2 discloses a technique in which a close contact
rib is provided by extending downward from the lower surface of an
inner cover that covers a cosmetic receiving chamber of an inner
case, wherein the close contact rib is configured to be elastically
bent outward and come into close contact with the inner
circumferential surface of the sidewall of the cosmetic receiving
chamber, thereby realizing an airtight sealing effect for the
cosmetic receiving chamber of the inner case.
DISCLOSURE
Technical Problem
In patent document 1, an airtight sealing effect for the inner
container is realized by the close and pressurized contact of the
downward sidewall of the inner cover with the outward inclined
surface provided on the upper part of the outer circumferential
surface of the inner container. Here, the airtight structure of
patent document 1 forms the airtight sealing effect by linear
contact between the outward inclined surface of the inner container
and the sidewall of the inner cover, so the technique of patent
document 1 is problematic in that distortion may occur in the
linear contact parts due to a variation in temperature and air
pressure, thereby causing a part of the contact junction of the
linear contact parts to become loose, thus deteriorating the
airtight sealing effect.
Further, the function of the close contact rib disclosed in patent
document 2 is to prevent a separation of the inner cover from the
inner case even when an external shock is applied to the cosmetic
container, thereby preventing a powdered cosmetic material from
being discharged from the inner case. Here, the airtight structure
of patent document 2 forms the airtight sealing effect by linear
contact between the outward bent edge of the close contact rib of
the inner cover and the inner circumferential surface of the
sidewall of the inner case, so the technique of patent document 2
is problematic in that distortion may occur in the linear contact
parts due to a variation in temperature and air pressure, thereby
causing a part of the contact junction of the linear contact parts
to become loose, thus deteriorating the airtight sealing
effect.
In addition, when the outer lid is closed under pressure in a state
in which the inner case is closed by the inner cover, air is not
expelled from the cosmetic receiving chamber at the inner case, so
the inner cover may become loose, thus deteriorating the airtight
sealing effect.
Accordingly, the present invention has been made keeping in mind
the above problems occurring in the prior art, and an object of the
present invention is to provide an airtight cosmetic container, in
which a downward extending sealing rib of an inner cover is
inserted into a seal groove defined between inner and outer elastic
sidewalls of a packing case of an inner container, and inner and
outer curved protrusions that protrude toward each other on opposed
surfaces of the inner and outer elastic sidewalls come into elastic
close contact with the inner and outer circumferential surfaces of
the sealing rib, thereby maximizing an airtight sealing effect
while efficiently compensating for a diametrical error or a
diameter deviation caused by a molding error of the inner
cover.
Another object of the present invention is to provide an airtight
cosmetic container, in which the packing case is configured such
that the height of the inner elastic sidewall is lower than the
height of the outer elastic sidewall, and in which the sealing rib
is provided with a downward inclined surface on the inner
circumferential surface thereof, so, when closing the inner cover,
the sealing rib can be smoothly inserted into the seal groove while
firstly the inclined surface of the sealing rib comes into contact
with the inner curved protrusion of the inner elastic sidewall at a
location near a hinged connection part, thereby pushing and
expanding the inner curved protrusion, and secondarily the outer
circumferential surface of the sealing rib comes into close contact
with the outer curved protrusion of the outer elastic sidewall,
thereby realizing a desired airtight sealing effect of the cosmetic
container, and
when opening the inner cover, the sealing rib is removed from the
seal groove while firstly the outer circumferential surface of the
sealing rib pushes the outer curved protrusion of the outer elastic
sidewall, thereby expanding the outer curved protrusion, and
secondarily the inclined surface of the sealing rib comes into
contact with the inner curved protrusion of the inner elastic
sidewall at the location near the hinged connection part, thereby
efficiently dispersing the contact force during an operation of
opening the inner cover, so the present invention can allow a user
to easily open or close the inner cover of the airtight cosmetic
container.
A further object of the present invention is to provide an airtight
cosmetic container, in which the hinge bracket of an inner cover
which is hinged to a hinge shaft set in the hinge bracket of the
packing case is configured such that the diameter of a shaft hole
of the hinge bracket of the inner cover is larger than the diameter
of the hinge shaft set in the hinge bracket of the packing case,
so, when the sealing rib of the inner cover is inserted into the
seal groove of the packing case, the sealing rib can be easily
inserted into the seal groove while compensating for a molding
error (diameter deviation) of the inner cover.
Yet another object of the present invention is to provide an
airtight cosmetic container, in which a reinforcing rim is formed
on the outer elastic sidewall of the packing case so as to increase
the elasticity of the outer elastic sidewall and to prevent
deformation of the outer elastic sidewall, and which can
efficiently resist elastic deformation of the sealing rib of the
inner cover even when the sealing rib is repeatedly inserted into
and removed from the seal groove of the packing case, thereby
efficiently maintaining the airtight sealing effect of the
container.
Technical Solution
In order to accomplish the above objects, the present invention
provides an airtight cosmetic container, including: a container
body; an inner container installed in the container body and
containing a cosmetic material therein; an inner cover rotatably
and openably combined with a side of the inner container and having
a sealing rib that comes into close contact with an upper end
surface of the inner container by a pressing force of a pressure
protrusion; and an outer lid combined with a side recess of the
container body by a hinge bracket and having a locking protrusion
at a portion opposed to the hinge bracket so as to be locked to a
locking step of a locking hole of a push button mounted to the
container body at a portion opposed to the side recess, so, when
the outer lid is closed, the outer lid brings the sealing rib into
close contact with the inner container by pressing a pressure
protrusion of the inner cover, and when the push button is pushed
so as to release the locking protrusion, the outer lid is opened,
wherein
the inner container includes a cosmetic tray, and a packing case in
which the cosmetic tray is installed and a hinge bracket is
provided so as to be combined with a hinge bracket of the inner
cover, wherein
the packing case includes inner and outer elastic sidewalls that
form a seal groove therebetween, so the sealing rib of the inner
cover is inserted into the seal groove, with inner and outer curved
protrusions protruding toward each other on opposed surfaces of the
inner and outer elastic sidewalls so as to come into elastic close
contact with inner and outer circumferential surfaces of the
sealing rib inserted in the seal groove, thereby realizing an
airtight sealing effect.
The inner elastic sidewall of the packing case may have a height
lower than a height of the outer elastic sidewall, and the sealing
rib of the inner cover may be provided with a downward inclined
surface on the inner circumferential surface thereof so as to come
into contact with the curved protrusion of the inner elastic
sidewall.
Here, the inner curved protrusion of the inner elastic sidewall may
be formed at a location near an upper end of an inlet of the seal
groove, the outer curved protrusion of the outer elastic sidewall
may be formed at a location lower than the inner curved protrusion
such that the outer curved protrusion is opposed to the inner
curved protrusion with a height difference defined between the
curved protrusions, so the curved protrusions are brought into
contact with the inner and outer circumferential surfaces of the
sealing rib by a stepwise manner, thereby dispersing an
opening/closing force, and realizing elastic contact with the inner
and outer circumferential surfaces of the sealing rib in a closed
state, and increasing the airtight sealing effect.
Further, the present invention may have an air vent groove on the
inner circumferential surface of the outer elastic sidewall, so,
when the outer lid is closed, the inner cover can come into close
contact with the packing case of the inner container.
Further, the inner diameter of a shaft hole formed in the hinge
bracket of the packing case may be larger the outer diameter of the
hinge shaft set in the hinge bracket of the inner cover, so, when
the inner cover is rotated, the hinge shaft can be moved in the
shaft hole, thereby compensating for an eccentric error when the
sealing rib is inserted into the seal groove.
Further, a reinforcing rim may be formed on the upper end part of
the outer circumferential surface of the outer elastic sidewall,
thereby providing a desired contact strength to the sealing rib of
the inner cover and maintaining concentric combination of the
sealing rib with the seal groove while preventing an eccentric
deformation, and allowing the inner cover to be easily closed.
Further, the container body may include a lower case to which the
push button is mounted, and an outer support case that is seated in
a seat of the lower case and has a through hole through which the
locking protrusion of the outer lid passes, and
the packing case may be seated in the seat of the lower case in
such a way that the outer elastic sidewall of the packing case is
fitted and held in the inner circumferential surface of the outer
support case, and the inner elastic sidewall of the packing case is
held by the outer circumferential surface of an inner support case
that is fitted over the outer circumferential surface of the
cosmetic tray.
Further, to allow the inner and outer elastic sidewalls to be
opened, the packing case may be assembled with the inner and outer
support cases in such a way that a predetermined gap is defined
between the inner and outer circumferential surfaces of the inner
and outer elastic sidewalls and the inner and outer circumferential
surfaces of the inner and outer support cases.
Further, the packing case may be made of a soft plastic material,
ductility of which is lower than that of the material of the inner
cover.
Advantageous Effects
The present invention is advantageous in that a desired airtight
sealing effect for a cosmetic material contained in the inner
container of the cosmetic container can be efficiently maintained
over a long period of time by a combination of injection-molded
elements without using a separate rubber seal (airtight seal
member), and, even when the outer lid of the cosmetic container is
repeatedly opened and closed so as to use the cosmetic material,
the cosmetic container can efficiently maintain the desired
airtight sealing effect, so the present invention can provide
products having improved qualities.
Another advantage of the present invention resides in that the
cosmetic container can be easily opened and closed without using a
separate rubber seal, so the present invention can allow users to
conveniently use cosmetic containers, and can produce cosmetic
containers in commercial quantity due to a simple process of
assembling the containers, thereby reducing the production cost of
the containers.
A further advantage of the present invention resides in that,
although there may be a diameter deviation of the inner cover due
to an injection molding error, the packing case receives the
sealing rib of the inner cover while efficiently compensating for
the diameter deviation, thereby realizing a desired airtight
sealing effect and ensuring reliability of products.
Still another advantage of the present invention resides in that,
when closing the inner cover onto the packing case, air is expelled
from the packing case, so the packing case can be airtightly
sealed, thereby efficiently preventing the cosmetic material
contained in the packing case from changing in quality and from
discoloring, and preventing volatile ingredients of the cosmetic
material from vaporizing even when the cosmetic material is kept in
the container for a long period of time.
DESCRIPTION OF DRAWINGS
FIG. 1 is an exploded perspective view illustrating elements
constituting an airtight cosmetic container of the present
invention;
FIG. 2 is a perspective view illustrating the airtight cosmetic
container of the present invention in an assembled state;
FIG. 3 is a perspective view illustrating the airtight cosmetic
container of the present invention in which an outer lid and an
inner cover are opened;
FIG. 4 is a sectional view illustrating the airtight cosmetic
container of the present invention in which the outer lid and the
inner cover are opened;
FIG. 5 is an enlarged view of portion F of FIG. 4;
FIG. 6 is an enlarged view of portion G of FIG. 4;
FIG. 7 is a sectional view illustrating the airtight cosmetic
container of the present invention in which the outer lid and the
inner cover are closed;
FIG. 8 is an enlarged view of portion H of FIG. 7;
FIG. 9 is an enlarged view of portion I of FIG. 7;
FIG. 10 is an enlarged view of a packing case of the airtight
cosmetic container according to the present invention, illustrating
a location of an air vent groove in the packing case;
FIG. 11 is an enlarged view illustrating another embodiment of the
air vent groove of the present invention in which the air vent
groove is formed in a sealing rib of the inner cover; and
FIGS. 12 to 16 are enlarged sectional views sequentially
illustrating a stepwise process when the sealing rib of the inner
cover of the present invention is combined with the packing case,
which is the gist of the present invention.
BEST MODE
The characteristic configuration of the present invention resides
in that a desired airtight sealing effect for airtightly sealing a
cosmetic material contained in an inner container (cosmetic
receiving container) can be realized by a combination of
injection-molded elements without using a separate rubber seal in
such a way that, when closing an inner cover, a sealing rib
extending downward from the lower surface of the inner cover is
inserted into a seal groove of a packing case of the inner
container while compensating for a molding error of the inner
cover, and inner and outer curved protrusions that protrude inward
oppositely from inner and outer elastic sidewalls forming the seal
groove come into elastic close contact with the inner and outer
circumferential surfaces of the sealing rib inserted into the seal
groove.
Further, in the packing case, the inner curved protrusion of the
inner elastic sidewall is formed at a location near an upper end of
the inlet of the seal groove, the outer curved protrusion of the
outer elastic sidewall is oppositely formed at a location lower
than the inner curved protrusion with a predetermined height
difference between the two curved protrusions, so the sealing rib
can come into stepwise contact with the inner and outer
circumferential surfaces, thereby efficiently dispersing the
opening and closing forces and bringing the inner and outer
circumferential surfaces of the sealing rib into elastic contact
with the inner and outer curved protrusions, and maximizing the
airtight sealing effect.
Further, when the outer lid is closed onto the packing case covered
with the inner cover, air is expelled from the inner container by a
compression force of the outer lid, thereby maximizing the airtight
sealing effect.
Hereinbelow, the present invention will be described in detail with
reference to the accompanying drawings.
Here, to efficiently describe the present invention, elements may
be omitted, simplified or exaggerated in accompanying drawings, if
the omitting, simplifying and exaggerating do not affect the right
of the present invention.
As shown in an exploded perspective view of FIG. 1, assembled
sectional views of FIGS. 4 and 7, and enlarged views of FIGS. 8 and
9, the airtight cosmetic container of the present invention
includes: a container body 100, an inner container 200, an inner
cover 300 and an outer lid 400, wherein the container body 100 and
inner container 200 form a cosmetic containing part, and the inner
cover 300 and the outer lid 400 form a cover part.
Here, the inner container 200 is installed in the container body
100, and the inner cover 300 is rotatably hinged to a packing case
220 of the inner container 200 by a hinge shaft 331 that connects a
hinge bracket 330 of the inner cover 300 to a hinge bracket 230
formed on a side of the packing case 220, so the inner cover 300
can open and close the inner container 200.
When the inner cover 300 is closed by being rotated around the
hinge bracket 330, the upper open end of the interior (cosmetic
receiving chamber) of the inner container 200 is closed by the
inner cover 300.
In addition, the outer lid 400 is rotatably hinged to a side recess
150 of the container body 100 by a hinge shaft 411 that connects a
hinge bracket 410 of the outer lid 400 to the side recess 150. When
the outer lid 400 is closed by being rotated around the hinge
bracket 410 such that the outer lid 400 covers the inner cover 300,
a locking protrusion 420 that is formed in the outer lid 400 by
protruding at a location opposite to the hinge bracket 410 is
caught by a locking step 161 of a push button 160 that is mounted
to the container body 100, thereby forming a closed state of the
cosmetic container as shown in FIG. 2 which is suitable for
carrying or keeping the contained cosmetic.
When closing the outer lid 400, the lower surface of the outer lid
400 presses an upper pressure protrusion 310 of the inner cover
300, so the sealing rib 320 of the inner cover 300 comes into close
contact with the upper surface of the inner container 200 by a
pressing force of the outer lid 400, thereby airtightly sealing the
inner container 200 and isolating the cosmetic material C contained
in the inner container 200 from the environment.
As shown in FIG. 3, to open the inner container 200, the push
button 160 of the container body 100 is pushed, so the locking
protrusion 420 of the outer lid 400 is released from the locking
step 161 and the hinge bracket 410 of the outer lid 400 is rotated
upward, and the outer lid 400 is primarily opened. Thereafter, the
inner cover 300 is rotated upward around the hinge bracket 330,
thereby finally opening the inner container 200.
Here, the pressure protrusion 310 may protrude upward from the
upper edge of the inner cover 300 to a sufficient height so as to
form a puff receiving chamber 340 for receiving a makeup puff 350
therein.
Further, a makeup mirror 450 may be mounted to the lower surface of
the outer lid 400, so the mirror 450 can press the pressure
protrusion 310 of the inner cover 300 and can be used for makeup
after opening the outer lid 400.
The container body 100 includes a lower case 110 to which the push
button 160 is mounted, and an outer support case 120 that is seated
in a seat 111 of the lower case 110 and is provided with a through
hole 121 through which the locking protrusion 420 of the outer lid
400 passes.
Here, the push button 160 is inserted through a through hole of the
lower case 110, and is held in the lower case 110 in such a way
that the rear end of the push button 160 is closely held on the
outer circumferential surface of the outer support case 120. At a
location opposite to the push button 160, the side recess 150 is
formed in the lower case 110 so as to be hinged to the hinge
bracket 410 of the outer lid 400 using the hinge shaft 411.
In addition, as shown in the enlarged view of FIG. 4, the outer
circumferential surface of the lower part of the outer support case
120 is an uneven surface, so the outer support case 120 is tightly
seated in a support ring 112 protruding upward in the seat 111 of
the lower case 110 by an engagement of the uneven outer
circumferential surface of the outer support case 120 with an
uneven inner circumferential surface of the support ring 112.
The inner container 200 includes a cosmetic tray 210 and the
packing case 220 in which the cosmetic tray 210 is seated and which
has the hinge bracket 230 hinged to the hinge bracket 330 of the
inner cover 300.
The packing case 220 includes inner and outer elastic sidewalls 222
and 223 that form the seal groove 221 into which the sealing rib
320 of the inner cover 300 is inserted.
Here, as shown in FIG. 6, the inner and outer elastic sidewalls 222
and 223 are provided with inner and outer curved protrusions 222a
and 223a, respectively. Here, the inner and outer curved
protrusions 222a and 223a oppositely protrude inward from the inner
and outer elastic sidewalls 222 and 223.
Here, the inner and outer curved protrusions 222a and 223a come
into elastic close contact with the inner and outer circumferential
surfaces of the sealing rib 320 inserted into the seal groove 221,
respectively, due to the elastic restoring force of the inner and
outer elastic sidewalls 222 and 223.
The packing case 220 is seated in the seat 111 of the lower case
110 in such a way that the outer elastic sidewall 223 of the
packing case 220 is held on the inner circumferential surface of
the outer support case 120 of the container body 100. The inner
elastic sidewall 222 of the packing case 220 has an uneven inner
circumferential surface, so the uneven inner circumferential
surface of the inner elastic sidewall 222 can be tightly engaged
with the lower part of an uneven outer circumferential surface of
an inner support case 250 that is fitted between the inner
circumferential surface of the inner elastic sidewall 222 and the
outer circumferential surface of the cosmetic tray 210.
Here, to allow the inner and outer elastic sidewalls 222 and 223 to
be elastically opened, the inner and outer elastic sidewalls 222
and 223 are placed in such a way that a predetermined gap B is
defined between the inner and outer elastic sidewalls 222 and 223
and the inner and outer circumferential surfaces of the inner and
outer support cases 250 and 120.
Here, the packing case 220 may be made of a plastic material by a
molding process, in which ductility and elasticity of the plastic
material of the packing case 220 are higher than those of a
material of the sealing rib 320 of the inner cover 300.
In addition, to allow the sealing rib 320 of the inner cover 300 to
further move downward in the seal groove 221 while increasing the
airtight sealing effect when the outer lid 400 is finally closed
and presses the inner cover 300 in a state in which the sealing rib
320 is being inserted in the seal groove 221, an air vent groove
225 is formed on the inner circumferential surface of the outer
elastic sidewall 223. Here, the air vent groove 225 may extend from
the upper end of the outer elastic sidewall 223 to a middle portion
of the outer curved protrusion 223a, as shown in FIG. 10.
In another embodiment, the function of the air vent groove 225 may
be realized by an air vent groove formed at another location. That
is, as shown in FIG. 11, an air vent groove 322 may be formed on a
lower part of the outer circumferential surface of the sealing rib
320 of the inner cover 300. In this case, when the sealing rib 320
of the inner cover 300 is inserted into the seal groove 221 of the
packing case 220 by the pressing force of the outer lid 400, air is
expelled through a gap formed between the air vent groove 322 of
the sealing rib 320 and the outer curved protrusion 223a of the
outer elastic sidewall 223, thereby realizing a desired airtight
sealing effect.
Further, the height of the inner elastic sidewall 222 of the
packing case 220 is lower than the outer elastic sidewall 223, and
a downward inclined surface 321 is formed on the inner
circumferential surface of the sealing rib 320 of the inner cover
300, so the downward inclined surface 321 can come into contact
with the inner curved protrusion 222a of the inner elastic sidewall
222.
Here, the inclined surface 321 is formed on the inner
circumferential surface of the sealing rib 320 within a range
extending from the lower end to a predetermined height of the
sealing rib 320, so the thickness of the sealing rib 320 is
gradually reduced in a downward direction.
Accordingly, when the sealing rib 320 of the inner cover 300 is
moved around the hinge bracket 330, the inclined surface 321 of the
sealing rib 320 primarily comes into contact with the inner elastic
sidewall 222 of the packing case 220, so the sealing rib 320 can be
easily inserted into the seal groove 221.
Further, the inner curved protrusion 222a of the inner elastic
sidewall 222 is formed at a location near the upper end of the
inlet of the seal groove 221, and the outer curved protrusion 223a
of the outer elastic sidewall 223 is oppositely formed at a
location lower than the location of the inner curved protrusion
222a with a height difference between the two curved
protrusions.
When the inner and outer curved protrusions 222a and 223a are
formed at respective locations with a height difference as
described above, the inclined surface 321 of the sealing rib 320
can be easily and smoothly inserted into the seal groove 221 while
coming into contact with the inner curved protrusion 222a.
Specifically, the inner elastic sidewall 222 of the packing case
220 is formed at a location lower than that of the outer elastic
sidewall 223, and the sealing rib 320 is provided with the downward
inclined surface 321 on the inner circumferential surface.
Accordingly, when closing the inner cover 300, firstly, the
inclined surface 321 of the sealing rib 320 comes into contact with
the inner curved protrusion 222a of the inner elastic sidewall 222
at a side near the hinge shaft 331, thereby being inserted into the
seal groove 221 while smoothly biasing the inner elastic sidewall
222 radially outward; and secondarily, the outer circumferential
surface of the sealing rib 320 comes into close contact with the
outer curved protrusion 223a of the outer elastic sidewall 223,
thereby forming a desired airtight sealing effect.
When opening the inner cover 300, the sealing rib 320 is removed
from the seal groove 221 while firstly the outer circumferential
surface of the sealing rib 320 pushes the outer curved protrusion
223a of the outer elastic sidewall 223 so as to bias the outer
curved protrusion 223a radially outward, and secondarily the
inclined surface 321 comes into contact with the curved protrusion
222a of the inner elastic sidewall 222 at a location near the hinge
shaft 331. Thus, when the inner cover 300 is opened and closed, the
contact force can be efficiently dispersed, and the hinge shaft 331
that is set in the hinge bracket 330 of the inner cover 300 can
move in the shaft hole 230a of the hinge bracket 230 of the packing
case 220, so the inner cover 300 can be easily opened and
closed.
A reinforcing rim 223b is formed around the upper end of the outer
circumferential surface of the outer elastic sidewall 223, thereby
realizing a concentric forming of the outer elastic sidewall 223
without eccentrically forming the outer elastic sidewall 223.
Further, when the sealing rib 320 is inserted into the seal groove
221, the reinforcing rim 223b increases the elastic restoring force
of the outer elastic sidewall 223.
Therefore, when the inner cover 300 is rotated so as to be opened
or closed, the contact of the inner and outer circumferential
surfaces of the sealing rib 320 with the inner and outer elastic
sidewalls 222 and 223 is performed stepwise, so the opening and
closing force can be efficiently dispersed. Further, during a
process in which the inner cover 300 is closed, the inner and outer
elastic sidewalls 222 and 223 come into close contact with the
inner and outer circumferential surfaces of the sealing rib 320 at
upper and lower portions due to the elastic restoring force of the
inner and outer elastic sidewalls 222 and 223, so the present
invention can increase the airtight sealing effect of the cosmetic
container.
As shown in the enlarged view of FIG. 5, the diameter d of the
hinge shaft 331 set in the hinge bracket 330 of the inner cover 300
is smaller than the diameter D of the shaft hole 230a that is
formed in the hinge bracket 230 at a side of the packing case 220,
so, when the inner cover 300 is rotated so as to be closed, the
hinge shaft 311 can move within the shaft hole 230a.
Thus, when the sealing rib 320 of the inner cover 300 is inserted
into the seal groove 221 while coming into contact with and biasing
the inner and outer elastic sidewalls 222 and 223 of the packing
case 220, it is possible to compensate for a diameter deviation
(diameter difference) caused by a molding error. In other words,
the sealing rib 320 can be efficiently inserted into the seal
groove 221 while the hinge shaft 331 moves in the shaft hole 230a
of the hinge bracket 230 of the packing case 220, wherein the shaft
hole 230a has the diameter D.
The above-mentioned opening and closing operation of the inner
cover 300 and the operation of the packing case 220 of the inner
container 200 performed accompanying with the opening and closing
operation of the inner cover 300 will be described in detail with
reference to FIGS. 12 to 16.
As shown in FIG. 12, to keep or carry the cosmetic container
containing the cosmetic material C after applying the cosmetic, a
user closes the inner cover 300 in a state in which both the outer
lid 400 and the inner cover 300 have been opened.
When the inner cover 300 is closed as described above, the hinge
cover 300 is rotated around the hinge bracket 230 of the packing
case 220. Here, firstly the distal end of the inclined surface 321
of the sealing rib 320 comes into contact with the inner curved
protrusion 222a that protrudes inward at a location near the upper
end of the inner elastic sidewall 222 of the seal groove 221.
When the inner cover 300 is further rotated from the
above-mentioned state, the sealing rib 320 is smoothly inserted
into the seal groove 221 while the inclined surface 321 of the
sealing rib 320 comes into contact with and biases the inner
elastic sidewall 222 outward, as shown in FIG. 13.
During the above-mentioned process, the sealing rib 320 of the
inner cover 300 can be smoothly inserted into the seal groove 221
while the hinge bracket 330 of the inner cover 300 which is
connected to the hinge shaft 331 set in the shaft hole 230a of the
hinge bracket 230 of the packing case 220 can move due to the
elasticity of the inner elastic sidewall 222, as shown in FIG.
14.
As described above, when the sealing rib 320 is inserted into the
seal groove 221, the lower end of the outer circumferential surface
of the sealing rib 320 primarily comes into contact with the upper
end of the outer elastic sidewall 223 of the seal groove 221 which
is farthest from the hinge shaft 331, as shown in FIG. 15, and
secondarily comes into contact with the outer curved protrusion
223a, and the sealing rib 320 is fully inserted into the seal
groove 221 while biasing and opening the outer elastic sidewall 223
outward, as shown in FIG. 16. When the sealing rib 320 is fully
inserted into the seal groove 221, the sealing rib 320 is not
brought into contact with the upper end of the outer elastic
sidewall 223 of the packing case 220. However, due to the
elasticity of the inner and outer elastic sidewalls 222 and 223,
the inner and outer curved protrusions 222a and 223a of the inner
and outer elastic sidewalls 222 and 223 strongly clamp the inner
and outer circumferential surfaces of the sealing rib 320 while
forming a desired airtight sealing effect.
When a user closes the outer lid 400 by rotating the outer lid 400
around the hinge bracket 410 in the above state, the lower surface
(the mirror 450) of the outer lid 400 compresses the pressure
protrusion 310 of the inner cover 300, so the inner cover 300 is
moved downward while air is expelled from the cosmetic tray 210
through the air vent groove 225 formed on the inner circumferential
surface of the outer elastic sidewall 223 of the packing case 220
until the locking protrusion 420 is caught by the locking step 161
of the push button 160 of the lower case 110 constituting the
container body 100, thereby realizing the airtight sealing
effect.
When the locking protrusion 420 is caught by the locking step 161,
the inner cover 300 is further moved downward, so the lower surface
of the inner cover 300 from which the sealing rib 320 extends comes
into contact with the upper end surface of the outer elastic
sidewall 223 of the packing case 220, thereby completely isolating
the cosmetic material C contained in the cosmetic tray 210 of the
inner container 200 from the environment and realizing a desired
airtight sealing effect for the cosmetic material C.
When opening the inner cover 300 after opening the outer lid 400 so
as to use the cosmetic material C, the inner cover 300 is rotated
around the hinge shaft 331 that is set in the shaft hole 230a of
the hinge bracket 230 of the packing case 220, so a portion of the
outer circumferential surface of the sealing rib 320 which is
farthest from the hinge shaft 331 is removed from the seal groove
221 while pushing and opening the outer curved protrusion 223a of
the outer elastic sidewall 223. In the above state, the inclined
surface 321 of the sealing rib 320 is removed from the seal groove
221 while coming into contact with a portion of the curved
protrusion 222a of the inner elastic sidewall 222 of the packing
case 220 which is nearest to the shaft hole 230a of the hinge
bracket 230, so, when the inner cover 300 is opened or closed, the
contact force can be efficiently dispersed
As described above, when the inner cover 300 is opened or closed,
the force formed by the sealing rib 320 that is removed from or
inserted into the seal groove 221 of the packing case 220 can be
efficiently dispersed, so the opening or closing operation can be
easily performed.
Although the preferred embodiments of the present invention have
been disclosed for illustrative purposes, those skilled in the art
will appreciate that the present invention is not limited to
embodiments described above and shown in the accompanying
drawings.
For example, the present invention may be used in a threaded type
opening/closing container which can be opened or closed by rotating
the threaded outer lid 400 hinged to the container body 100 in a
state in which the outer lid 400 is closed relative to the
container body 100.
Although the preferred embodiment (s) of the present invention have
(has) been disclosed for illustrative purposes, those skilled in
the art will appreciate that various modifications, additions and
substitutions are possible, without departing from the scope and
spirit of the invention as disclosed in the accompanying
claims.
TABLE-US-00001 <Description of the Reference Numerals in the
Drawings> 100: container body 110: lower case 120: outer support
case 200: inner container 210: cosmetic tray 220: packing case 221:
seal groove 222: inner elastic sidewall 223: outer elastic sidewall
225, 322: air vent groove 250: inner support case 300: inner cover
310: pressure protrusion 320: seating rib 400: outer lid C:
cosmetic material
INDUSTRIAL APPLICABILITY
As described above, the present invention provides an airtight
cosmetic container that can be produced by a combination of
elements made of a synthetic resin material, thereby being produced
in large quantity, realizing a desired airtight sealing effect and
improving quality of products without using a rubber seal.
* * * * *