U.S. patent application number 11/798008 was filed with the patent office on 2007-11-15 for refrigerator.
This patent application is currently assigned to LG Electronics Inc.. Invention is credited to Sun Kook Ji.
Application Number | 20070262686 11/798008 |
Document ID | / |
Family ID | 38684487 |
Filed Date | 2007-11-15 |
United States Patent
Application |
20070262686 |
Kind Code |
A1 |
Ji; Sun Kook |
November 15, 2007 |
Refrigerator
Abstract
There is provided a refrigerator. The refrigerator include a
drawer that is selectively drawn in a storage space, a storage
container for storing foodstuffs, the storage container being
received in the drawer, a container cover for closing the storage
container, and an opening device that restricts the container cover
when the drawer is drawn out by a predetermined distance, thereby
slide-opening the storage container.
Inventors: |
Ji; Sun Kook; (Changwon-si,
KR) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Assignee: |
LG Electronics Inc.
|
Family ID: |
38684487 |
Appl. No.: |
11/798008 |
Filed: |
May 9, 2007 |
Current U.S.
Class: |
312/402 |
Current CPC
Class: |
A47B 2210/08 20130101;
A47B 88/90 20170101; F25D 23/021 20130101; F25D 2400/10 20130101;
F25B 2500/13 20130101; A47B 88/919 20170101; F25D 25/025
20130101 |
Class at
Publication: |
312/402 |
International
Class: |
A47B 96/04 20060101
A47B096/04 |
Foreign Application Data
Date |
Code |
Application Number |
May 10, 2006 |
KR |
10-2006-0042001 |
Aug 3, 2006 |
KR |
10-2006-0073356 |
Claims
1. A refrigerator comprising: a drawer that is selectively drawn in
a storage space; a storage container for storing foodstuffs, the
storage container being received in the drawer; a container cover
for closing the storage container; and an opening device that
restricts the container cover when the drawer is drawn out by a
predetermined distance, thereby slide-opening the storage
container.
2. The refrigerator according to claim 1, wherein the opening
device includes: a restricting projection extending rearward from
the container; and a restricting damper that is formed on a side of
the storage space to selectively restrict the restricting
projection.
3. The refrigerator according to claim 2, wherein the restricting
damper is formed of an elastic material.
4. The refrigerator according to claim 2, wherein the restricting
damper is provided with a projection receiving hole having a
diameter less than a diameter of the restricting projection.
5. The refrigerator according to claim 2, wherein the restricting
damper is provided with a shock absorbing wrinkles for attenuating
compression impact generated when the restricting damper is
received in the restricting projection.
6. The refrigerator according to claim 1, further comprising: a
hook projection protruding from one of the container cover and the
storage space; and an interference projection protruding from the
other of the container cover and the storage space, wherein the
hook and interference projections restrict the movement of the
container cover out of the storage space when the storage container
is drawn out.
7. The refrigerator according to claim 1, wherein the opening
device is designed to allow the storage container to be drawn out
by elastic force stored by a spiral spring.
8. The refrigerator according to claim 1, wherein the opening
device comprises: a spiral spring provided on a side of the storage
container; a rack mounted on the container cover and provided with
gear teeth; and a pinion moving relative to the rack at a
corresponding location to the rack and connected to a rotational
center of the spiral spring to selectively compress the spiral
spring.
9. The refrigerator according to claim 1, wherein the opening
device comprises inclined portions formed on the storage container
and the container cover to guide a slide motion of the container
cover on the storage container.
10. The refrigerator according to claim 9, wherein a stopper is
formed on a location where the inclined portions contact each other
to restrict the container cover when the container cover is drawn
out by a predetermined distance.
11. The refrigerator according to claim 9, wherein a friction
reducing member is provided on a location where the inclined
portions contact each other so that the container cover effectively
slides on the storage container.
12. The refrigerator according to claim 11, wherein the friction
reduction member is formed of a plastic material containing oil or
a roller.
13. The refrigerator according to claim 9, further comprising a
shaking preventing rib formed on a top of the storage container to
prevent the container cover from moving leftward and rightward.
14. A refrigerator comprising: a drawer that is selectively
inserted in a storage space; a storage container for storing
foodstuffs, the storage container being received in the drawer; a
container cover for selectively closing the storage container; and
a restricting projection formed on a rear surface of the container
cover; and a restricting damper that is formed on a rear surface of
the storage space corresponding to the restricting projection to
receive the restricting projection, wherein the restricting
projection and the restricting damper restrict selectively the
container cover when the storage cover slides out of the storage
space.
15. The refrigerator according to claim 14, wherein the restricting
damper is provided with a plurality of shock absorbing
wrinkles.
16. A refrigerator comprising: a drawer that is selectively
inserted in a storage space; a storage container for storing
foodstuffs, the storage container being received in the drawer; a
container cover for selectively closing the storage container; a
spiral spring provided on a side of the storage container; a rack
mounted on the container cover and provided with gear teeth; and a
pinion moving relative to the rack at a corresponding location to
the rack and connected to a rotational center of the spiral spring
to selectively compress the spiral spring.
17. A refrigerator comprising: a drawer that is selectively
inserted in a storage space; a storage container for storing
foodstuffs, the storage container being received in the drawer; a
container cover for selectively closing the storage container; a
container inclined portion formed on a side of the storage
container and having an inclined surface; a cover inclined portion
formed on a side of the container cover and having an inclined
surface corresponding to the inclined surface of the container
inclined portion so that the storage container is opened by sliding
on the container cover; and a stopper that is formed between the
container inclined portion and the cover inclined portion to
restrict the container cover when the container cover is drawn out
by a predetermined distance.
18. The refrigerator according to claim 17, wherein the stopper is
formed on each other container inclined portion and the cover
inclined portion.
19. The refrigerator according to claim 17, further comprising a
friction reduction member that is disposed between the container
inclined portion and the cover inclined portion to reduce friction
between the container inclined portion and the cover inclined
portion.
20. The refrigerator according to claim 17, further comprising a
shaking preventing rib that is formed on a top of the container
inclined portion and protrudes upward along the container inclined
portion to prevent the container cover from moving leftward and
rightward.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a refrigerator. More
particularly, the present invention relates to a refrigerator
having a structure where a container cover of a storage container
disposed in a storage drawer is automatically opened when drawing
out the storage drawer.
[0003] 2. Description of the Related Art
[0004] Generally, a refrigerator is an electronic appliance that
can preserve foodstuffs for a long time by maintaining a
temperature of an enclosed space to be lower than a temperature of
an indoor space.
[0005] Recently, the refrigerators have been variously classified
as the refrigerators are multi-functionalized due to the variation
of the user's liking and food life. Particularly, Kimchi
refrigerators that are configured to be appropriate for storing
Kimchi as well as fruits, fishes, and the like have been widely
spread.
[0006] The Kimchi refrigerator includes storage drawers in which
storage containers are received. Particularly, a container cover
for closing the storage container is coupled to the storage
container through a snap-fitting manner or is provided with a
folded outer end that is coupled to a side of the storage
container.
[0007] However, such methods for closing/opening the storage
container using the container cover is inconvenient for the user as
the user manually closes and opens the storage container.
[0008] In addition, when the container cover is used for a long
time, it may be worn. This causes the leakage of liquid stored in
the storage container and thus the surroundings may get dirty.
[0009] Furthermore, when the user is using one hand, it is
difficult for the user to put and take the foodstuffs in and from
the storage container.
SUMMARY OF THE INVENTION
[0010] Accordingly, the present invention is directed to a
refrigerator that substantially obviates one or more problems due
to limitations and disadvantages of the related art.
[0011] An object of the present invention is to provide a
refrigerator that is configured such that a storage container
received in a storage drawer is automatically slide-opened as the
storage drawer is opened.
[0012] Another object of the present invention is to provide a
refrigerator that is configured such that such that a container
cover of a storage container received in a storage drawer is
automatically opened as the storage drawer is drawn out.
[0013] Additional advantages, objects, and features of the
invention will be set forth in part in the description which
follows and in part will become apparent to those having ordinary
skill in the art upon examination of the following or may be
learned from practice of the invention. The objectives and other
advantages of the invention may be realized and attained by the
structure particularly pointed out in the written description and
claims hereof as well as the appended drawings.
[0014] To achieve these objects and other advantages and in
accordance with the purpose of the invention, as embodied and
broadly described herein, there is provided a refrigerator
including: a drawer that is selectively drawn in a storage space; a
storage container for storing foodstuffs, the storage container
being received in the drawer; a container cover for closing the
storage container; and an opening device that restricts the
container cover when the drawer is drawn out by a predetermined
distance, thereby slide-opening the storage container.
[0015] In another aspect of the present invention, there is
provided a refrigerator including: a drawer that is selectively
inserted in a storage space; a storage container for storing
foodstuffs, the storage container being received in the drawer; a
container cover for selectively closing the storage container; and
a restricting projection formed on a rear surface of the container
cover; and a restricting damper that is formed on a rear surface of
the storage space corresponding to the restricting projection to
receive the restricting projection, wherein the restricting
projection and the restricting damper restrict selectively the
container cover when the storage cover slides out of the storage
space.
[0016] In still another aspect of the present invention, there is
provided a refrigerator including: a drawer that is selectively
inserted in a storage space; a storage container for storing
foodstuffs, the storage container being received in the drawer; a
container cover for selectively closing the storage container; a
spiral spring provided on a side of the storage container; a rack
mounted on the container cover and provided with gear teeth; and a
pinion moving relative to the rack at a corresponding location to
the rack and connected to a rotational center of the spiral spring
to selectively compress the spiral spring.
[0017] In still yet another aspect of the present invention, there
is provided a refrigerator including: a drawer that is selectively
inserted in a storage space; a storage container for storing
foodstuffs, the storage container being received in the drawer; a
container cover for selectively closing the storage container; a
container inclined portion formed on a side of the storage
container and having an inclined surface; a cover inclined portion
formed on a side of the container cover and having an inclined
surface corresponding to the inclined surface of the container
inclined portion so that the storage container is opened by sliding
on the container cover; and a stopper that is formed between the
container inclined portion and the cover inclined portion to
restrict the container cover when the container cover is drawn out
by a predetermined distance.
[0018] According to the refrigerator of the present invention,
since the storage container received in the drawer is automatically
opened and closed as the drawer is opened and closed, the use
convenience can be improved.
[0019] Further, since the container cover can be automatically
opened and closed, the abrasion of the container cover may be
reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings, which are included to provide a
further understanding of the invention and are incorporated in and
constitute a part of this application, illustrate embodiment(s) of
the invention and together with the description serve to explain
the principle of the invention. In the drawings:
[0021] FIG. 1 is a perspective view of a refrigerator having a
storage container that can be automatically opened and closed
according to an embodiment of the present invention;
[0022] FIG. 2 is a perspective view of a storage container
according to a first embodiment of the present invention;
[0023] FIG. 3 is a side sectional view illustrating a state where a
drawer depicted in FIG. 2 is closed;
[0024] FIG. 4 is a side sectional view illustrating a state where a
drawer depicted in FIG. 2 is opened;
[0025] FIG. 5 is a schematic view of an opening device according to
a first embodiment of the present invention;
[0026] FIG. 6 is a side sectional view of an opening device
according to a second embodiment of the present invention;
[0027] FIG. 7 is a side sectional view of an opening device
according to a third embodiment of the present invention,
illustrating a state where a drawer is closed;
[0028] FIG. 8 is a side sectional view of the opening device of
FIG. 7, illustrating a state where a drawer is opened;
[0029] FIG. 9 is a rear view of the closing device of FIG. 7;
[0030] FIG. 10 is a perspective view of a storage container
according to a second embodiment of the present invention;
[0031] FIG. 11 is a schematic view of a friction reducing member
and a stopper according to a first embodiment of the present
invention;
[0032] FIG. 12 is a schematic view of a friction reduction member
and a stopper according to a second embodiment of the present
invention.
[0033] FIG. 13 is a side sectional view illustrating a state where
the drawer is opened; and
[0034] FIG. 14 is a schematic view a storage container according to
a third embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0035] The present invention may be applied to a variety of
refrigerators having drawer type storage space as well as Kimchi
refrigerators. For understanding more clearly, the following
description will take a Kimchi refrigerator for example.
[0036] Reference will now be made in detail to the preferred
embodiments of the present invention, examples of which are
illustrated in the accompanying drawings. The invention may,
however, be embodied in many different forms and should not be
construed as being limited to the embodiments set forth herein;
rather, these embodiments are provided so that this disclosure will
be thorough and complete, and will fully convey the concept of the
invention to those skilled in the art.
[0037] FIG. 1 is a perspective view of a refrigerator having a
storage container that can be automatically opened and closed
according to an embodiment of the present invention.
[0038] Referring to FIG. 1, a main body 10 of a Kimchi refrigerator
is formed in an almost rectangular parallelepiped shape. Upper and
lower storages spaces 100 and 200 are respectively formed on upper
and lower portions of the main body 10.
[0039] The upper storage space 100 is opened upward of the main
body 10. The upper storage space 100 is concaved by a predetermined
depth. If necessary, the upper storage space 100 may be divided
into left and right halves.
[0040] The upper storage space 100 is selectively closed by an
upper door 120. The upper door 120 is provided to selectively close
the upper storage space 100. The upper door 120 is hingedly coupled
to a top-rear end of the main body 10. The upper door 120 has a
corresponding shape to the upper storage space 100.
[0041] The lower storage space 200 is opened frontward at the lower
portion of the main body 10. The lower storage space 200 is
concaved rearward by a predetermined depth. If necessary, the lower
storage space 200 may be divided into left and right halves.
[0042] A drawer 220 is provided in the lower storage space 200. The
drawer 220 is installed in the lower storage space to be drawn in
and out. By drawing in the drawer 220, the opened front end of the
lower storage space 200 is selectively closed.
[0043] A storage container 300 for storing Kimchi, vegetables,
fruits, rice, and the like is received in the drawer 220. The
storage container 300 is formed in a rectangular parallelepiped
shape having an opened top.
[0044] The opened top of the storage container 300 is selectively
closed by a container cover 320. The container cover 320 has a
corresponding shape to the opened top of the storage container 30
so as to close the opened top of the storage container 30.
First Embodiment
[0045] FIG. 2 is a perspective view of a storage container
according to a first embodiment of the present invention.
[0046] Referring to FIG. 2, a storage space R opened frontward is
formed on a lower portion of the main body 20. The storage space R
is defined by an inner case 120 concaved rearward and defining an
inner shape of the main body 10. The storage space R is
substantially formed in a rectangular parallelepiped shape that is
opened frontward.
[0047] A drawer 200 is installed in the storage space R. The drawer
200 is capable of being drawn in and out of the storage space R.
The storage space R is a space for receiving the storage container
200.
[0048] The drawer 200 includes a drawer door 220 and a drawer
basket 240.
[0049] The drawer door 220 is formed to correspond to the opened
front portion of the storage space R. When the drawer is closed,
the drawer door 220 substantially closes the opened front portion
of the storage space R.
[0050] The front surface of the drawer 200 may be formed in a same
material as the main body so that it can harmonize with the main
body 100. A handle may be formed on an upper end of the drawer door
220 so that the user can graph the same when drawing in and out the
drawer 200.
[0051] The drawer basket 240 may be formed in a rectangular
parallelepiped shape having an opened top. The drawer basket 240 is
mounted on a rear surface of the drawer door 220 so that it can be
drawn in and out of the storage space R together with the drawer
door 220.
[0052] Drawer rails 260 that are configured to be capable of
extending in a multiple-step may be mounted on both side surfaces
of the drawer basket 240. The rear ends of the draw rails 260 are
respectively fixed on an inner surface of the storage space R,
i.e., on inner-left and inner-right side surfaces of the inner case
120.
[0053] Accordingly, the drawer basket 240 is capable of
reciprocating frontward and rearward. The foodstuffs are received
in the drawer basket 240 in a state where the drawer basket 240 is
drawn out of the storage space R, after which the drawer basket 240
is completely drawn in the storage space R so as to keep the
foodstuffs refrigerated.
[0054] Meanwhile, the storage container 300 is for receiving the
foodstuffs that are required to be kept in a freezing compartment
or a refrigerating compartment. The storage container 300 is
configured to be disposed in the drawer basket 240. That is, the
storage container 300 is formed in a rectangular parallelepiped
shape having an opened top. A container cover 320 is mounted on the
opened top of the storage container 300.
[0055] The container cover 320 is provided for selectively closing
the opened top of the storage container 300. Therefore, the
container cover 320 is formed to correspond to the opened top of
the storage container 300.
[0056] The storage container 300 may be selectively opened by an
opening device 700 that will be described later.
[0057] At this point, the container cover 320 is synchronized with
the reciprocating motion of the drawer 200 by the opening device
700 to be slide-opened and slide-closed on the top of the storage
container.
[0058] FIG. 3 is a side sectional view illustrating a state where
the drawer is closed, FIG. 4 is a side sectional view illustrating
a state where the drawer is opened, and FIG. 5 is a schematic view
of an opening device according to a first embodiment of the present
invention.
[0059] Referring to FIGS. 3 through 5, an opening device 400 of
this embodiment is provided for selectively restricting the
container cover 320 so that the storage container 300 is
selectively slide-opened as the drawer 200 is drawn out. The
opening device 400 includes a restriction projection 420 and a
restriction damper 440.
[0060] The restriction projection 420 is formed on a recess 322
formed on a rear end (right end in FIG. 5) of the container cover
320. The recess 322 is recessed inward from a central portion of
the rear end of the container cover 320. A depth of the recess 322
is less than a length of the restriction projection 420 so that the
restriction projection 420 can be effectively inserted in the
restriction damper 440. In addition, a width of the recess 322 is
greater than a width of the restriction damper 440.
[0061] The restriction projection 420 protrudes rearward from the
central portion of the recess 322. The restriction projection 420
may be formed in a cone-shape so that it can be easily inserted in
the restriction damper 440.
[0062] Meanwhile, the restriction damper 440 is disposed on the
inner case 120 to correspond to the restriction projection 420. The
restriction damper 440 selectively restricts the restriction
projection 420. The restriction damper 440 may be formed of an
elastic material such as rubber or silicon.
[0063] The restriction damper 440 may be formed in a cylindrical
shape having a diameter less than the recess 322. The restriction
damper 440 is provided at a roughly central portion with a
projection receiving hole 442 in which the restriction projection
420 is inserted.
[0064] A diameter of the projection receiving hole 442 is less than
a sectional area of the restriction projection 420 to restrict the
restriction projection 420. Therefore, when the restriction
projection 420 is inserted in and drawn out of the projection
receiving hole 442, external force should be applied.
[0065] The restriction damper 440 is provided at an outer
circumference with a plurality of shock absorbing wrinkles 444.
[0066] The shock absorbing wrinkles 444 are formed to absorb impact
generated when the rear end of the recess 322 collides with the
front end of the restriction damper 440 during the insertion of the
restriction projection 420.
[0067] The restriction damper 440 is formed of an elastic material
and has an overall shape similar to a wrinkle hose.
[0068] The following will describe the above-described automatic
opening structure of the storage container of the refrigerator with
reference to FIGS. 3 and 4.
[0069] In a state where the drawer 200 is closed, the drawer door
220 closes the opened front end of the storage space R and the
drawer basket 240 maintains an inserted sate in the storage space
R.
[0070] The top of the storage container 300 disposed in the drawer
basket 240 is closed by the container cover 320. At this point, the
restriction projection 420 is inserted in the projection receiving
hole 442 of the restriction damper 440 provided on the rear surface
of the inner case 120.
[0071] At this point, when the user pulls the drawer 200 frontward,
the drawer door 220 and the drawer basket 240 are drawn frontward.
At this point, the storage container 300 is drawn frontward
together with the drawer basket 240 in a state where the storage
container 300 is received in the drawer basket 240.
[0072] Meanwhile, the restriction projection 420 formed on the rear
end of the container cover 320 moves frontward in a state where it
is received in the restriction damper 440. That is, since the
diameter of the projection receiving hole 442 formed through the
restriction damper 440 is less than the diameter of the restriction
projection 420, the restriction projection 420 is not easily
separated.
[0073] That is, when the drawer 200 is pulled continuously, the
storage container 300 is opened frontward and thus the opened top
is exposed.
[0074] As the restriction damper 440 formed of the elastic material
is stretched, the restriction projection 420 is taken out of the
projection receiving hole 442. Further, the container cover 320
moves frontward together with the storage container 300.
[0075] Meanwhile, the user pushes the drawer 200 rearward to close
the storage space R. As the drawer 200 moves rearward, the storage
container 300 and the container cover 320 that are disposed in the
drawer basket 240 move rearward.
[0076] When the drawer 200 is completely drawn in, the container
cover 320 is disposed to be adjacent to the rear surface of the
storage space R and thus the restriction projection 620 formed on
the rear end of the container cover 320 is snapped in the
projection receiving hole 442 of the restriction damper.
[0077] Accordingly, the container cover 320 maintains the
restriction state by the opening device 400.
[0078] FIG. 6 is a side sectional view of an opening device
according to a second embodiment of the present invention.
[0079] Referring to FIG. 6, a drawer 200 includes a drawer door 220
and a drawer basket 240.
[0080] A storage container 300 for storing the foodstuffs is
disposed in the drawer basket 240 and an opened top of the storage
container 300 is selectively closed by a container cover 320. The
container cover 320 is selectively restricted when the drawer 200
is drawn out to automatically open the storage container 300.
[0081] An opening device 400 of this embodiment includes a hook
projection 460 and an interference projection 480.
[0082] The hook projection 460 contacts the interference projection
480 when the drawer 200 is drawn out so as to prevent the container
cover 320 from being drawn out. The hook projection 460 protrudes
from a top surface of the container cover 320.
[0083] Meanwhile, the hook projection 460 includes a vertical
portion 462 and an inclined portion 464. The vertical portion 462
is vertically formed on the top surface of the container cover 320
at a front end (a left end in FIG. 6) of the hook projection 460.
The vertical portion 462 of the hook projection 460 is configured
to contact the interference projection 480 when the drawer 200 is
drawn.
[0084] The interference projection 480 may be formed of an elastic
material such as rubber so as to attenuate impact when the hook
projection 460 contacts the same.
[0085] The following will describe an operation of the opening
device of this second embodiment with reference to FIG. 6.
[0086] In a state where the drawer 200 is closed, the storage
container 300 is disposed in the drawer basket 240 in the storage
space R. The container cover 320 closes the opened top of the
storage container 300. Accordingly, the hook projection 460 is
spaced apart rearward from the interference projection 480.
[0087] When the user pulls out the drawer 200 to store or take out
the foodstuffs in or from the storage container 300, the storage
container 300 is drawn out together with the drawer 200 and the
container cover 320 is also moves frontward.
[0088] When the drawer 200 is further pulled, the interference
projection 480 contacts the hook projection 460.
[0089] That is, when the drawer 200 is drawn out by almost half,
the vertical portion 462 of the hook projection 460 contacts the
interference projection 480. In this state, when the drawer 200 is
further pulled, the container cover 320 is restricted by the
interference between the hook projection 460 and the interference
projection 480. Therefore, the storage container 300 that is
further moving frontward is opened.
[0090] After the storage container 300 is opened, the user stores
or takes the foodstuffs in or from the storage container 300 and
pushes the drawer 200 rearward.
[0091] When the drawer 200 is pushed rearward, the storage
container 300 and the container cover 30 that are disposed in the
drawer 200 are also moved rearward together with the drawer 200.
After the drawer 200 moves rearward by a predetermined distance,
the container cover 320 contacts the rear surface of the storage
space R and stops.
[0092] Meanwhile, in order to initially receive the storage
container 300 and the container cover 320 in the drawer basket 240,
after the storage container 300 is disposed in the drawer basket
240 in a state where the container cover 320 closes the storage
container 300, the drawer 200 is pushed rearward so that the drawer
200 can be drawn in the storage space R.
[0093] When the drawer 200 is drawn in by a predetermined distance,
the hook projection 460 formed on the top surface of the container
cover 320 contacts the interference projection 480. The drawer 200
is further pushed, the interference projection 480 moves rearward
of the container cover 320 while contacting the inclined portion
464 of the hook projection 460, as a result of which the hook
projection 460 is to be located in rear of the interference
projection 480.
[0094] FIG. 7 is a side sectional view of an opening device
according to a third embodiment of the present invention,
illustrating a state where a drawer is closed, FIG. 8 is a side
sectional view of the opening device of FIG. 7, illustrating a
state where a drawer is opened, and FIG. 9 is a rear view of the
closing device of FIG. 7.
[0095] Referring to FIGS. 7 through 9, in a state where the drawer
200 is closed, the drawer door 220 closes the opened front end of
the storage space R and the drawer basket 240 maintains an inserted
sate in the storage space R.
[0096] The top of the storage container 300 disposed in the drawer
basket 240 is closed by the container cover 320. An opening device
500 for opening the storage container 300 by allowing the container
cover 320 to synchronize with the opening operation of the drawer
200 by selectively restricting the container cover 320 is provided
around the container cover 320 and the storage container 300.
[0097] Describing the opening device 500 in more detail, the
opening device 500 includes a rack 520, a pinion 540, and a spiral
spring 560.
[0098] The rack 520 and the pinion 540 selectively compress or
release the spiral spring 560 as the drawer 20 is drawn in and
out.
[0099] The rack 520 is horizontally arranged on a bottom surface of
the container cover 320. The teeth of the rack 520 are formed on a
bottom surface thereof.
[0100] The pinion 540 is provided on a side surface of the storage
container 300, which corresponds to the location of the rack 520
and engaged with the rack 520. Therefore, the pinion 540 moves
relative to the rack 520 mounted on the container cover 320 when
the drawer 200 moves frontward or rearward.
[0101] The pinion 540 rotates by the relative motion with the rack
520. A rotational shaft is formed on a central portion of the
pinion 540. The rotational shaft protrudes in a direction and
connected to the spiral spring 560.
[0102] The spiral spring 560 is formed by rolling a leaf spring.
The rotational shaft of the pinion 540 is connected to the central
portion of the spiral spring 560. Therefore, as the pinion 540
rotates, the spiral spring 560 is wound to have compression
force.
[0103] If necessary, the pinion gear 540 may be formed by a
combination of a plurality of gears. In this case, one of the gears
moves relative to the rack 520 and another gear engaged with the
gear moving relative to the rack 520 is connected to the central
portion of the spiral spring 560.
[0104] As the drawer 200 is drawn in, the pinion 540 rotates to
move from a front end of the rack 610 to a rear end of the rack
520. As a result, the spiral spring 560 is wound to increase the
compression force.
[0105] That is, the spiral spring 560 is in a normal state where no
compression force is generated when the drawer 200 is completely
opened and in a state where the compression force is maximized when
the drawer 200 is completely closed.
[0106] Needless to say, the compression force of the spiral spring
560 may be equalized to the weight and frictional force of the
drawer 200 in order to prevent the drawer 200 from not being
completely closed due to the compression force of the spiral spring
560.
[0107] Meanwhile, a supporting member 580 is provided on a rear
surface of the storage space R corresponding to the rear end of the
container cover 320, i.e., on a side of the inner case 120. The
supporting member 580 protrudes frontward from the rear surface of
the storage space R to support the rear end of the container cover
320 when the drawer 200 is completely drawn in, thereby preventing
the container cover 320 from being opened by the opening device 500
when the drawer 200 is completely drawn in.
[0108] The supporting member 580 is formed of an elastic material
such as rubber to attenuate the impact when the drawer 200 is drawn
in.
[0109] The following will describe an operation of the opening
device of the third embodiment with reference to FIGS. 7 and 8.
[0110] In a state where the drawer 200 is closed, the drawer door
220 closes the opened front end of the storage space R and the
drawer basket 240 maintains an inserted sate in the storage space
R. The top of the storage container 300 disposed in the drawer
basket 240 is closed by the container cover 320.
[0111] At this point, the pinion 540 is located on the rear end of
the rack 520 and the spiral spring 560 is in a completely
compressed state by the rotation of the pinion 540. Therefore, the
pinion 540 intends to rotate by the compression force of the spiral
spring 560 and thus the container cover 320 is applied with
rearward force.
[0112] However, since the supporting member 580 is provided in rear
of the container cover 320 to restrict the rearward movement of the
container cover 320. However, since the weight and frictional force
of the drawer 200 is greater than the compression force 560, the
drawer 200 is not drawn out but maintains the inserted state.
[0113] Meanwhile, when the user indents to store or take the
foodstuffs in or from the storage container 300, he/she pulls the
drawers 200 frontward to draw out the drawer 200. At this point,
the storage container 300 disposed in the drawer basket 240 is
drawn out together with the drawer 200.
[0114] As the storage container 300 moves frontward, the container
cover 320 is pushed rearward by the compression force of the spiral
spring 560. When the storage container 300 further moves frontward,
the pinion 540 moves relative to the rack 520 and thus the
compression force of the spiral spring 560 is gradually
reduced.
[0115] The compression force of the spiral spring 560 is applied
until the pinion 540 reaches the front end of the rack 520 and
pushes the container cover 320 rearward. When the drawer is
completely opened and thus the pinion 540 is located on the front
end of the rack 520, the spiral spring 560 is released, to the
normal state.
[0116] Accordingly, when the drawer 200 is completely opened, the
top of the storage container 300 is opened. Then, the user puts or
takes the foodstuffs in or from the storage container 300.
[0117] Subsequently, when the drawer 200 is drawn in again, the
storage container 300 disposed in the drawer basket 240 also moves
rearward. At this point, the container cover 320 maintains a state
where the rear end thereof is supported by the supporting member
580.
[0118] As the storage container 300 moves rearward, the pinion 540
rotates along the rack 520 and thus the spiral spring 560 is
compressed.
[0119] In a state where the drawer 200 is completely drawn in, the
compression force of the spiral spring 560 is maximized. At this
point, since the compression force is equalized with the frictional
force and weight of the drawer 200, the drawer 200 can maintain the
inserted state.
Second Embodiment
[0120] FIG. 10 is a perspective view of a storage container
according to a second embodiment of the present invention.
[0121] Referring to FIG. 10, a storage space 120 opened frontward
is formed on a lower portion of the main body 10.
[0122] The storage space 120 is defined by an inner case 120
concaved rearward and defining an inner shape of the main body 10.
The storage space 120 is substantially formed in a rectangular
parallelepiped shape that is opened frontward. If necessary, the
storage space 120 may be divided into left and right halves.
[0123] A drawer 200 is installed in the storage space 120. The
drawer 200 includes a drawer door 220 for selectively closing the
opened front portion of the storage space 120 and a storage
container for storing the foodstuffs. The drawer 200 is capable of
being drawn in and out of the storage space 200.
[0124] The drawer door 220 has a corresponding shape to the opened
front portion of the storage space 120 so that it can close the
opened front portion of the storage space 120. That is, the drawer
door 220 is configured to harmonize with an outer appearance of the
main body 10.
[0125] A supporting bracket 240 is mounted on a rear surface of the
drawer door 220. The supporting bracket 240 is configured to
correspond to the circumferential surface of the storage container
300. Rails 260 are mounted on both sides of the supporting bracket
240.
[0126] Meanwhile, the storage container 300 is provided to preserve
the foodstuffs such as rice or vegetables under a lower
temperature. The storage container 300 includes a container main
body 700 for receiving the foodstuffs and a container cover 600 for
selectively closing the container main body 700 in accordance with
the movement of the drawer 200.
[0127] An opening mechanism O having corresponding inclined
surfaces are provided under the container cover 600 and above the
container main body 700. The opening mechanism O automatically
opens the storage container 300 as the container cover 600 slides
rearward when the container main body 700 moves frontward. The
opening mechanism O includes container inclined portions 620 and
620' formed on the container main body 700 and cover inclined
portions 610 and 610' formed on the container cover 600.
[0128] The container main body 700 is configured to receive the
supporting bracket 240. That is, the container main body 700 is
formed in a rectangular parallelepiped shape having an opened
top.
[0129] Further, the container inclined portion 620 is formed on an
upper portion of the container main body 700. The container
inclined portion 620 contacts a side of the container cover 600 to
guide the sliding-open of the container cover 600. The container
inclined portion 620 extends from a front end to a rear end (from a
left end to a right end in FIG. 10) of upper ends of both sides of
the container main body 700.
[0130] The container inclined portion 620 is inclined downward as
it goes rearward (rightward in FIG. 10).
[0131] Meanwhile, a shaking preventing rib 640 is formed on an
inner side of the container inclined portion 620, i.e., an inner
side of the upper end of the container main body 700, extending
upward along the inclined surface of the container inclined portion
620.
[0132] The shaking preventing rib 640 contacts left and right sides
of an inner portion of the container cover 600 to prevent the
container cover 600 from shaking leftward and rightward. The
shaking preventing rib 640 protrudes up to a predetermined height
to allow the container cover 600 to effectively slide down.
[0133] A sealing portion 660 is formed on a front-upper end of the
container main body 700 adjacent to the drawer door 220. The
sealing portion 660 protrudes upward to be higher than the upper
ends of the both side surfaces of the container main body 700.
[0134] The sealing portion 660 contacts the front end of the
container cover 600 when the container cover 600 closes completely
the container main body 700. The sealing portion 660 is configured
to seal the inside of the container main body 700 as the container
cover 600 contacts the container main body 700.
[0135] Meanwhile, the container cover 600 is formed with a
rectangular plate corresponding to the opened top of the container
main body 700. The cover inclined portions 610 are formed on the
left and right side ends of the container cover 700. The cover
inclined portions 610 slide while contacting the container inclined
portions 620. The cover inclined portions 610 are formed downward
to be vertical to the container cover 600.
[0136] The cover inclined portion 610 has an inclination
corresponding to the container inclined portion 620 so that it can
effectively slide while contacting the container inclined portion
620. That is, the cover inclined portion 610 has an inclined
surface formed on a bottom thereof. That is, a thickness of the
cover inclined portion 610 increases as it goes from a front end to
a rear end. As the thickness of the cover inclined portion 610
increases as it goes toward the rear end, a weight center of the
container cover 600 is naturally sided to a rear half. As a result,
the container cover 600 can effective slide on the container main
body 700. However, such a movement of the weight center may not be
enough. Therefore, an additional structure may be added to the rear
half of the container cover 600.
[0137] The inclined surface of the cover inclined portion 610
contacts the inclined surface of the container inclined portion
620. The inner surface of the cover inclined portion 610 is
adjacent to the shaking preventing rib 640 formed on the container
main body 700 so as to prevent the container cover 600 from being
removed and thus to allow the container cover 600 to be stably
drawn out.
[0138] FIG. 11 is a schematic view of a friction reducing member
and a stopper according to a first embodiment of the present
invention, and FIG. 12 is a schematic view of a friction reduction
member and a stopper according to a second embodiment of the
present invention.
[0139] Referring to FIGS. 11 and 12, the container inclined portion
620 and the cover inclined portion 610 are respectively provided
with stoppers 626 and 622 and friction reduction members 628, 628',
624, and 624'.
[0140] The stoppers 626 and 622 prevent the container cover from
being separated when the container cover 600 opens the storage
container 300 while sliding on the upper portion of the container
main body 700. The stoppers 626 and 622 include a container stopper
626 protruding upward from the rear half of the inclined surface of
the container inclined portion 620 and the cover stopper 622
protruding downward from the front half of the inclined surface of
the cover inclined portion 610.
[0141] The container stopper 626 has a front end that is vertical
with respect to the inclined surface of the container inclined
portion 620, a top end that is horizontally formed, and a rear end
that is inclined or rounded.
[0142] The cover stopper 622 has a rear end that vertically extends
with respect to the inclined surface of the cover inclined portion
610 and lower and front ends that are inclined or rounded.
[0143] Accordingly, when the container cover 600 slides down
rearward, the inclined surfaces of the container stopper 626 and
the cover stopper 622 contact each other. At this point, the cover
stopper 622 is restricted by the container stopper 626 and thus the
separation of the container cover 600 from the container main body
700 by the container cover 600 keeping sliding down rearward can be
prevented.
[0144] The friction reducing members 628 and 624 are respectively
mounted on the inclined surfaces of the container inclined portion
620 and the cover inclined portion 610. The friction reduction
members 628, 628', 624, and 624' contact the respective container
and cover inclined portions 620 and 610 so that the container cover
600 can more smoothly slide.
[0145] For example, as shown in FIG. 11, as the friction reduction
members 628 and 624 that respectively protrude from the inclined
surfaces of the container and cover inclined portions 620 and 610
further protrude, a space between the container inclined portion
620 and the cover inclined portion 610 is reduced.
[0146] At this point, the friction reduction member 628 and 624 are
formed of a material having a relatively lower frictional
coefficient to enhance the sliding motion of the container cover.
The friction reduction members 628 and 624 may be formed of POM or
lubricant plastic that is formed by mixing oil with resin.
[0147] Meanwhile, as shown in FIG. 12, the friction reduction
members 624' and 628' may be formed of roller or bearings mounted
on the container inclined portion 620 in rear of the container
stopper and the cover inclined portion 610 in front of the cover
stopper 622.
[0148] An operation of the above-described automatic opening
structure will be described hereinafter with reference to FIGS. 10
through 13.
[0149] FIG. 13 is a side sectional view illustrating a state where
the drawer is opened.
[0150] Referring to FIGS. 10 through 13, in a state where the
drawer door 220 is closed, the storage container 300 is received
inside the storage space 120 and the container cover 600 completely
closes the top of the container main body 700.
[0151] When the user opens the drawer to put or take the foodstuffs
in or from the storage container 300, the storage container 300
received in the supporting bracket 240 is exposed together with the
drawer door 220.
[0152] At this point, the storage container 300 is drawn out
together with the drawer 200 and the container cover 600 closing
the opened top of the container main body 700 slides down on the
container main body 700 by inertia.
[0153] That is, the container main body 700 moves frontward as the
drawer is drawn out. At this point, the cover inclined portion 610
of the container cover 600 slides down along the container inclined
portion 620.
[0154] At this point, the container inclined portion 610 slides
down on the cover inclined portion 620 while line-contacting or
point-contacting the friction reduction members 628, 628', 624, and
624' such as rollers or bearings. Since the weight center of the
container cover 600 is sided rearward, the container cover 600
keeps sliding down rearward, thereby completely opening the
container main body 700.
[0155] Meanwhile, when the container main body 700 is almost
opened, the container stopper 626 and the cover stopper 622 that
are respectively formed on the container cover 600 and the
container main body 700 contact each other.
[0156] At this point, the vertical portions of the container and
cover stoppers 626 and 622 contact each other so that the cover
stopper 622 is hooked on the container stopper 626, thereby
preventing the container cover 600 from being separated.
[0157] After the storage container 300 is completely opened, the
user can put or take the foodstuffs in or from the storage
container 300. Subsequently, the user pushes the drawer door 220
rearward so that the drawer 200 and the storage container 300 can
be inserted into the storage space 120.
[0158] During the insertion of the drawer 200, the drawer door 220
and the storage container 300 move rearward and, at the same time,
the storage container 300 is closed again.
[0159] Accordingly, when the container main body 700 keeps moving
rearward, the container covers 600 slides up along the inclined
surface of the container inclined portion 620 of the container main
body 700.
[0160] As the cover inclined portion 610 of the container cover 600
moves frontward while contacting the container inclined portion 620
of the container main body 700, the container cover 600 gradually
closes the opened top of the container main body 700.
[0161] The container cover 600 completely closes the opened top of
the container main body 700.
[0162] FIG. 14 is a schematic view a storage container according to
a third embodiment of the present invention.
[0163] Referring to FIG. 14, container inclined portions 620' are
formed on upper portions of both side surfaces of a container main
body 700.
[0164] At this point, upper ends of the both sides of the container
main body 700 may be inclined in response to the inclination of the
container inclined portions 620'. Alternatively, the upper ends of
the both sides of the container main body 700 may be horizontally
formed in response to the shape of the container cover 600.
[0165] Meanwhile, cover inclined portions 610' are formed on both
side ends of the container cover 600 closing the container main
body 700. The cover inclination portions 610' are formed extending
vertically downward at the both side ends of the container cover
600. The lower ends of the container cover 600 extend to contact
the top surface of the container inclined portion 620' of the
container main body 700.
[0166] The cover inclined portions 610' are also inclined downward
to correspond to the container inclined portion 620'. The extending
length of the rear half of the cover inclined portion 610' is
greater than that of the front half. Accordingly, the weight center
of the container cover 600 is sided rearward.
[0167] The container stopper 626 and the cover stopper 622 and the
friction reduction members 628 and 624 may be mounted on the
container and cover inclined portions 620' and 610'. This structure
is identical to that of the foregoing embodiment and thus a
detailed description thereof will be omitted herein.
[0168] According to the refrigerator having the storage container
that is automatically opened in accordance with the present
invention, since the storage container received in the storage
space is automatically closed and opened by the movement of the
drawer, the use convenience can be improved.
[0169] Further, since the container cover is automatically opened
and closed, the abrasion of the container cover can be reduced.
[0170] It will be apparent to those skilled in the art that various
modifications and variations can be made in the present invention.
Thus, it is intended that the present invention covers the
modifications and variations of this invention provided they come
within the scope of the appended claims and their equivalents.
* * * * *