U.S. patent application number 12/761816 was filed with the patent office on 2010-10-21 for gas cooker.
This patent application is currently assigned to LG ELECTRONICS INC.. Invention is credited to Yong Ki Jeong, Yang Ho Kim, Young Soo Kim, Jae Bum Lim, Jung Wan Ryu, Jun Ho Seok, Jea Hyuk Wie, Dae Bong Yang.
Application Number | 20100263657 12/761816 |
Document ID | / |
Family ID | 42980045 |
Filed Date | 2010-10-21 |
United States Patent
Application |
20100263657 |
Kind Code |
A1 |
Ryu; Jung Wan ; et
al. |
October 21, 2010 |
GAS COOKER
Abstract
A gas cooker is provided. First and second front burners are
disposed on the left and the right of a front upper surface of a
top plate at an interval in a row. Lower ignition parts of the
first and second front burners are disposed at a distance from an
imaginary straight line passing through central points of the first
and second front burners in parallel with the front end of the top
plate, toward a front end of the top plate.
Inventors: |
Ryu; Jung Wan; (Changwon
City, KR) ; Yang; Dae Bong; (Changwon City, KR)
; Wie; Jea Hyuk; (Changwon City, KR) ; Jeong; Yong
Ki; (Changwon City, KR) ; Lim; Jae Bum;
(Changwon City, KR) ; Seok; Jun Ho; (Changwon
City, KR) ; Kim; Young Soo; (Changwon City, KR)
; Kim; Yang Ho; (Changwon City, KR) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Assignee: |
LG ELECTRONICS INC.
Seoul
KR
|
Family ID: |
42980045 |
Appl. No.: |
12/761816 |
Filed: |
April 16, 2010 |
Current U.S.
Class: |
126/39E |
Current CPC
Class: |
F24C 3/085 20130101 |
Class at
Publication: |
126/39.E |
International
Class: |
F24C 3/08 20060101
F24C003/08; F24C 3/10 20060101 F24C003/10 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 17, 2009 |
KR |
10-2009-0033884 |
Claims
1. A gas cooker comprising: a top plate; first and second front
burners arranged at an interval in a row on the left and the right
of a front upper surface of the top plate, each comprising a lower
ignition part for mounting of a spark plug; and at least one rear
burner disposed at a rear upper surface of the top plate, wherein
the lower ignition part of the first front burner is disposed
nearer to a front end of the top plate than an imaginary straight
line passing through a central point of the first front burner in
parallel with the front end of the top plate is, and the lower
ignition part of the second front burner is disposed nearer to the
front end of the top plate than an imaginary straight line passing
through a central point of the second front burner in parallel with
the front end of the top plate is.
2. The gas cooker according to claim 1, wherein the lower ignition
parts of the first and second front burners are disposed such that
an imaginary straight line extending from the central point of the
first front burner to a center of the lower ignition part of the
first front burner and an imaginary straight line extending from
the central point of the second front burner to a center of the
lower ignition part of the second front burner intersect in a space
between the first and second front burners.
3. The gas cooker according to claim 1, wherein the rear burner
includes first and second rear burners arranged in a row at an
interval in a left and right direction.
4. A gas cooker comprising: a top plate; first and second front
burners arranged in a row on left and right ends of a front upper
surface of the top plate, each comprising a lower ignition part for
mounting of a spark plug; and at least one rear burner disposed at
a rear upper surface of the top plate, wherein an imaginary
straight line extending from a central point of the first front
burner to a center of the lower ignition part of the first front
burner and an imaginary straight line passing through the central
point of the first front burner in parallel with a front end of the
top plate are inclined to each other by a predetermined angle, and
an imaginary straight line extending from a central point of the
second front burner to a center of the lower ignition part of the
second front burner and an imaginary straight line passing through
the central point of the second front burner in parallel with the
front end of the top plate are inclined to each other by a
predetermined angle.
5. The gas cooker according to claim 4, wherein the imaginary
straight line extending from the central point of the first front
burner to the center of the lower ignition part of the first front
burner and the imaginary straight line extending from the central
point of the second front burner to the center of the lower
ignition part of the second front burner intersect in a space
between the first and second front burners.
6. The gas cooker according to claim 4, wherein an intersection
point between the imaginary straight line extending from the
central point of the first front burner to the center of the lower
ignition part of the first front burner and the imaginary straight
line extending from the central point of the second front burner to
the center of the lower ignition part of the second front burner is
disposed nearer to the front end of the top plate than the central
points of the first and second front burners are.
7. The gas cooker according to claim 4, wherein an angle formed by
the imaginary straight line extending from the central point of the
first front burner to the center of the lower ignition part of the
first front burner and the imaginary straight line passing through
the central point of the first front burner in parallel with the
front end of the top plate is the same as an angle formed by the
imaginary straight line extending from the central point of the
second front burner to the center of the lower ignition part of the
second front burner and the imaginary straight line passing through
the central point of the second front burner in parallel with the
front end of the top plate.
8. The gas cooker according to claim 4, wherein an angle formed by
the imaginary straight line extending from the central point of the
first front burner to the center of the lower ignition part of the
first front burner and the imaginary straight line passing through
the central point of the first front burner in parallel with the
front end of the top plate, and an angle formed by the imaginary
straight line extending from the central point of the second front
burner to the center of the lower ignition part of the second front
burner and the imaginary straight line passing through the central
point of the second front burner in parallel with the front end of
the top plate are both about 10.degree. or less.
9. The gas cooker according to claim 4, wherein an angle formed by
the imaginary straight line extending from the central point of the
first front burner to the center of the lower ignition part of the
first front burner and the imaginary straight line passing through
the central point of the first front burner in parallel with the
front end of the top plate is different from an angle formed by the
imaginary straight line extending from the central point of the
second front burner to the center of the lower ignition part of the
second front burner and the imaginary straight line passing through
the central point of the second front burner in parallel with the
front end of the top plate.
10. The gas cooker according to claim 4, wherein an angle formed by
the imaginary straight line extending from the central point of the
first front burner to the center of the lower ignition part of the
first front burner and the imaginary straight line passing through
the central point of the first front burner in parallel with the
front end of the top plate is about 3.degree. 30' or less, and an
angle formed by the imaginary straight line extending from the
central point of the second front burner to the center of the lower
ignition part of the second front burner and the imaginary straight
line passing through the central point of the second front burner
in parallel with the front end of the top plate is about 7.degree.
30' or less.
11. A gas cooker comprising: a top plate; a first front burner
disposed at a left end of a front upper surface of the top plate
and provided with a plurality of flame holes arranged along a
circumference thereof; a second front burner disposed at a right
end of the front upper surface of the top plate, forming a row with
the first front burner, and provided with a plurality of flame
holes arranged along a circumference thereof; and at least one rear
burner disposed at a rear upper surface of the top plate and
provided with a plurality of flame holes arranged along a
circumference thereof, wherein the flame holes of the first and
second front burners are arranged along the circumferences of the
first and second front burners except parts of the circumferences
within an area defined by the straight line passing through a
central point of the first front burner perpendicularly to a front
end of the top plate, the straight line passing through a central
point of the second front burner perpendicularly to the front end
of the top plate, an imaginary straight line passing through the
central points, and the front end of the top plate.
12. The gas cooker according to claim 11, wherein a straight line
extending from the central point of the first front burner to a
central point of the part of the circumference of the first front
burner, the part where the flame hole is not formed, is inclined by
about 10.degree. clockwise or counterclockwise with respect to an
imaginary straight line passing through the central point of the
first front burner in parallel with the front end of the top plate,
and a straight line extending from the central point of the second
front burner to a central point of the part of the circumference of
the second front burner, the part where the flame hole is not
formed, is inclined by about 10.degree. clockwise or
counterclockwise with respect to an imaginary straight line passing
through the central point of the second front burner in parallel
with the front end of the top plate.
13. The gas cooker according to claim 11, wherein a straight line
extending from the central point of the first front burner to a
central point of the part of the circumference of the first front
burner, the part where the flame hole is not formed, is inclined by
about 3.degree. 30' clockwise or counterclockwise with respect to
an imaginary straight line passing through the central point of the
first front burner in parallel with the front end of the top plate,
and a straight line extending from the central point of the second
front burner to a central point of the part of the circumference of
the second front burner, the part where the flame hole is not
formed, is inclined by about 7.degree. 30' clockwise or
counterclockwise with respect to an imaginary straight line passing
through the central point of the second front burner in parallel
with the front end of the top plate.
14. The gas cooker according to claim 11, wherein a spark plug for
ignition of a gas mixture discharged through the flame holes of the
first and second front burners is mounted at the parts of the
circumferences of the first and second front burners, the parts
where the flame holes are not formed.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims priority under 35 U.S.C. 119
and 35 U.S.C. 365 to Korean Patent Application No. 10-2009-0033884
(filed on Apr. 17, 2009), which is hereby incorporated by reference
in its entirety.
BACKGROUND
[0002] The present disclosure relates to a cooker, and more
particularly, to a gas cooker heating items to be cooked using
gas.
[0003] A cooker refers to an electronic home appliance that heats
items to be cooked (hereinafter, referred to as "foods") using gas
or electricity. Especially, some cookers such as a gas range and a
gas oven are equipped with a plurality of top burners. The top
burner heats foods directly by a flame generated by burning gas. A
plurality of the top burners is arranged at intervals on an upper
surface of a top plate which forms an upper surface of the gas
range or the gas oven.
SUMMARY
[0004] Embodiments provide a gas cooker improved in safety during
use.
[0005] In one embodiment, a gas cooker includes: a top plate; first
and second front burners arranged at an interval in a row on the
left and the right of a front upper surface of the top plate, each
comprising a lower ignition part for mounting of a spark plug; and
at least one rear burner disposed at a rear upper surface of the
top plate. The lower ignition part of the first front burner may be
disposed nearer to a front end of the top plate than an imaginary
straight line passing through a central point of the first front
burner in parallel with the front end of the top plate is, and the
lower ignition part of the second front burner may be disposed
nearer to the front end of the top plate than an imaginary straight
line passing through a central point of the second front burner in
parallel with the front end of the top plate is.
[0006] In another embodiment, a gas cooker includes: a top plate;
first and second front burners arranged in a row on left and right
ends of a front upper surface of the top plate, each comprising a
lower ignition part for mounting of a spark plug; and at least one
rear burner disposed at a rear upper surface of the top plate. An
imaginary straight line extending from a central point of the first
front burner to a center of the lower ignition part of the first
front burner and an imaginary straight line passing through the
central point of the first front burner in parallel with a front
end of the top plate may be inclined to each other by a
predetermined angle, and an imaginary straight line extending from
a central point of the second front burner to a center of the lower
ignition part of the second front burner and an imaginary straight
line passing through the central point of the second front burner
in parallel with the front end of the top plate may be inclined to
each other by a predetermined angle
[0007] In another embodiment, a gas cooker includes a top plate; a
first front burner disposed at a left end of a front upper surface
of the top plate and provided with a plurality of flame holes
arranged along a circumference thereof; a second front burner
disposed at a right end of the front upper surface of the top
plate, forming a row with the first front burner, and provided with
a plurality of flame holes arranged along a circumference thereof;
and at least one rear burner disposed at a rear upper surface of
the top plate and provided with a plurality of flame holes arranged
along a circumference thereof. The flame holes of the first and
second front burners may be arranged along the circumferences of
the first and second front burners except parts of the
circumferences within an area defined by the straight line passing
through a central point of the first front burner perpendicularly
to a front end of the top plate, the straight line passing through
a central point of the second front burner perpendicularly to the
front end of the top plate, an imaginary straight line passing
through the central points, and the front end of the top plate.
[0008] The details of one or more embodiments are set forth in the
accompanying drawings and the description below. Other features
will be apparent from the description and drawings, and from the
claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is a perspective view of a gas cooker according to a
first embodiment.
[0010] FIG. 2 is a plan view showing main parts of the gas cooker
according to the first embodiment.
[0011] FIGS. 3 and 4 are operation state views illustrating
processes of a safety test for the gas cooker according to the
first embodiment.
[0012] FIG. 5 is a plan view showing main parts of a gas cooker
according to a second embodiment.
[0013] FIG. 6 is a plan view showing main parts of a gas cooker
according to a third embodiment.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] Hereinafter, a gas cooker according to a first embodiment
will be explained in detail with reference to the accompanying
drawings.
[0015] FIG. 1 is a perspective view of a gas cooker according to a
first embodiment. FIG. 2 is a plan view showing main parts of the
gas cooker according to the first embodiment.
[0016] Referring to FIG. 1, the gas cooker 10 includes a main body
100 forming an appearance thereof. The main body 100 includes a top
burner unit 200, an oven unit 300, a warming drawer 400, a back
guard 500, a control panel 600 and a top burner control unit
700.
[0017] The top burner unit 200 and the oven unit 300 cook foods
therein. The warming drawer 400 heats a container holding the
foods.
[0018] The control panel 600 is input with an operation signal for
operation of the gas cooker 10 and displays various information
related to the operation of the gas cooker 10 to the outside. The
top burner control unit 700 opens and closes a valve which supplies
gas to the top burner unit 200. The back guard 500 guides
combustion gas generated during cooking of the foods in the oven
unit 300.
[0019] More specifically, the top burner unit 200 is disposed at an
upper end of the main body 100. The top burner unit 200 includes a
plurality of top burners 220 burning gas and thereby heating a
container holding the foods. The top burner 220 will be described
in greater detail hereinafter.
[0020] Additionally, the top burner unit 200 is provided with a
plurality of grates 270. The container to be heated by the top
burner 220 is seated on the grate 270.
[0021] The oven unit 300 is disposed in the middle part of the main
body 100, that is, under the top burner unit 200. A cooking chamber
(not shown) is provided inside the oven unit 300. The foods are
cooked by a heater (not shown) in the cooking chamber. The cooking
chamber is selectively opened and closed by a door 310. The door
310 pivots up and down by its upper edge about its lower edge with
respect to the main body 100, thereby opening and closing the
cooking chamber. A door handle 320 is disposed on an upper front
part of the door 310 for a user to grip when opening and closing
the door 310.
[0022] The warming drawer 400 is disposed under the oven unit 300,
that is, at a lower part of the main body 100. The warming drawer
400 is mounted to move in and out of the main body 100 in a drawer
manner. The container holding the foods is received in the warming
drawer 400 and heated by the heater of the cooking chamber or a
separate heater for warming. The warming drawer 400 includes a
drawer handle 410 disposed on an upper front part thereof for a
user to grip to move the warming drawer 400 in and out.
[0023] The back guard 500 is disposed at an upper rear end of the
main body 100, that is, a rear part of the top burner unit 200,
extending upward from the upper surface of the main body 100. The
back guard 500 includes a path formed therein in communication with
the cooking chamber. Accordingly, combustion gas generated in the
oven unit 300 while the foods is cooked in the cooking chamber
flows through the path and is discharged out of the cooking
chamber.
[0024] The control panel 600 is disposed on a front surface of the
back guard 500. The control panel 600 includes an input part
receiving various operation signals for actual operations of the
oven unit 300 and the warming drawer 400 and a display part
displaying various information related to the operations of the
oven unit 300 and the warming drawer 400.
[0025] The top burner control unit 700 includes a plurality of
operation knobs 710 provided corresponding to the top burners 220
in number. The operation knobs 710 selectively open and close
valves that supply gas to the respective top burners 220.
[0026] The top plate 210 forms an upper appearance of the top
burner unit 200. The top plate 210 includes burner mounting parts
211 to which the top burners 220 are mounted. The burner mounting
parts 211 protrudes upward so that parts of the top plate 210 have
substantially circular cross-sections. Therefore, upper surfaces of
the burner mounting parts 211 are disposed relatively higher than
an upper surface of the top plate 210.
[0027] The top burners 220 may include top burners 220, 230, 240,
250, and 260 arranged on the upper surface of the top plate 210 in
at least two rows, for example, front and rear rows. More
specifically, the top burners 220, 230, 240, 250, and 260 may be a
first front burner 220, a second front burner 230, a first rear
burner 240, a second rear burner 250, and a central burner 260. The
first and second front burners 220 and 230 are disposed on the left
and the right of a front upper surface of the top plate 210. The
first and the second rear burners 250 and 250 are disposed on the
left and the right of a rear upper surface of the top plate 210.
The central burner 260 is disposed in the center of the top plate
210, i.e., between the first and second front burners 220 and 230
and the first and second rear burners 240 and 250. In the present
embodiment, the central burner 260 has a substantial oval form
extending in a forward and backward direction of the gas cooker
10.
[0028] The first and second front burners 220 and 230 respectively
include burner heads 221 and 231 and burner caps 227 and 237.
Referring to FIG. 2, the first and second front burners 220 and 230
respectively include a plurality of flame holes 223 and 233
arranged along circumferences of the burner heads 221 and 231. A
gas mixture, that is, a mixture of air and the gas supplied to the
first and second front burners 220 and 230 is discharged through
the flame holes 223 and 233 of the first and second front burners
220 and 230. In addition, the burner heads 221 and 231 of the first
and second front burners 220 and 230 respectively include lower
ignition parts 225 and 235. The lower ignition parts 225 and 235
each include a spark plug (not shown) for ignition of the gas
mixture discharged from the flame holes 223 and 233 of the first
and second front burners 220 and 230. The lower ignition parts 225
and 235 are each disposed at one side of the circumference of each
of the burner heads 221 and 231. Accordingly, the flame holes 223
and 233 of the first and second front burners 220 and 230 are not
formed at one side of the circumferences of the burner heads 221
and 231, that is, positions corresponding to the lower ignition
parts 225 and 235 of the first and second front burners 220 and
230. The burner caps 227 and 237 of the first and second front
burners 220 and 230 are seated on upper surfaces of the burner
heads 221 and 231.
[0029] The first and second rear burners 240 and 250, and the
central burner 260 also include burner heads 241, 251, and 261 and
burner caps 247, 257, and 267, respectively. Since the first and
second rear burners 240 and 250 and the central burner 260 are
structured substantially in the same manner as the first and second
front burners 220 and 230, a detailed description about the
structure of the rear burners 240 and 250 and the central burner
260 will be omitted.
[0030] Meanwhile, one of safety tests for gas cookers tests whether
a fabric T (FIG. 4) ignites, which is attached to a front side of
containers C1 and C2 (See FIGS. 3 and 4) holding foods by the first
and second front burners 220 and 230. According to the present
embodiment, positions of the lower ignition parts 225 and 235 of
the first and second burners 220 and 230 are restricted such that
ignition of the fabric T used in the safety test is prevented.
[0031] More specifically, the lower ignition part 225 of the first
front burner 220 is disposed in such a manner that a straight line
M1 extending from the central point A1 of the first front burner
220 to the lower ignition part 225 of the first front burner 220 is
inclined forward by a predetermined angle, exemplarily by less than
about 10.degree., with respect to an imaginary straight line L1
passing through the central point A1 of the first front burner 220
in parallel with a front end of the top plate 210. Also, the lower
ignition part 235 of the second front burner 230 is disposed in
such a manner that a straight line M2 extending from a central
point A2 of the second front burner 230 to the lower ignition part
235 of the second front burner 230 is inclined forward by a
predetermined angle, exemplarily, by less than about 10.degree.,
with respect to an imaginary straight line L2 passing through the
central point A2 of the second front burner 230 in parallel with
the front end of the top plate 210. Here, the lower ignition parts
225 and 235 are disposed substantially in an area between straight
lines N1 and N2 that respectively pass through the central points
A1 and A2 of the first and second front burners 220 and 230 in a
perpendicular direction to the front end of the top plate 210.
[0032] The straight line M1 extending from the central line A1 to
the lower ignition part 225 and the straight line M2 extending from
the central point A2 to the lower ignition part 235 intersect in a
space between the first and second front burners 220 and 230. In
other words, an intersection point Q of the straight lines M1 and
M2 is disposed in the space between the first and second front
burners 220 and 230.
[0033] Hereinafter, the operation of the gas cooker according to
the first embodiment will be described in further detail with
reference to the accompanying drawings.
[0034] FIGS. 3 and 4 are operation state views illustrating
processes of the safety test for the gas cooker according to the
first embodiment.
[0035] Referring to FIG. 3, first, the containers C1 and C2 holding
water are seated on the grates 270 adjacent to the first and second
front burners 220 and 230, respectively. Here, a predetermined
quantity of the water as required for the safety test, for example,
about 3/4 of the containers C1 and C2, may be put in the containers
C1 and C2.
[0036] Referring to FIG. 4, next, the fabric T is disposed between
the first and second front burners 220 and 230 in close contact
with the front surfaces of the containers C1 and C2. In this state,
the operation knob 710 is operated so that the containers C1 and C2
are heated by the first and second front burners 220 and 230. More
specifically, the gas mixture is supplied to the first and second
front burners 220 and 230 and the spark plugs to ignite the gas
mixture are operated by the operation of the operation knob 710.
Next, it is observed for a predetermined time required by the
safety test, for example 30 seconds, whether the fabric T is
ignited by flames from the first and second front burners 220 and
230.
[0037] As described above, the lower ignition parts 225 and 235 of
the first and second front burners 220 and 230 are disposed where
ignition of the gas mixture is not actually performed such that
ignition of the fabric T is prevented. As a result, ignition of the
fabric T does not occur for the predetermined time while the
containers C1 and C2 are being heated by the first and second front
burners 220 and 230.
[0038] Hereinafter, a gas cooker according a second embodiment will
be described in detail with reference to the drawings.
[0039] FIG. 5 is a plan view showing main parts of the gas cooker
according to the second embodiment.
[0040] Referring to FIG. 5, the lower ignition part 225 of the
first front burner 220 is disposed in such a manner that the
straight line M1 extending from the central point A1 of the first
front burner 220 to the lower ignition part 225 of the first front
burner 220 is inclined by about 3.degree. 30' or less clockwise
with respect to the imaginary straight line L1 passing through the
central point A1 of the first front burner 220 in parallel with the
front end of the top plate 210. Also, the lower ignition part 235
of the second front burner 230 is disposed in such a manner that
the straight line M2 extending from the central point A2 of the
second front burner 230 to the lower ignition part 235 of the
second front burner 230 is inclined by about 7.degree. 30' or less
counterclockwise with respect to the imaginary straight line L2
passing through the central point A2 of the second front burner 230
in parallel with the front end of the top plate 210. Here, the
straight line M1 extending from the central line A1 to the lower
ignition part 225 and the straight line M2 extending from the
central point A2 to the lower ignition part 235 intersect in the
space between the first and second front burners 220 and 230.
[0041] According to the present embodiment, differently from in the
first embodiment, the straight lines M1 and M2 are inclined by
different angles with respect to the straight lines passing through
the central points A1 and A2 of the first and second front burners
220 and 230. This is because such a configuration is experimentally
proved to be more effective in preventing ignition of the fabric of
the safety test regarding the first and second front burners 220
and 230 under the same condition as described above.
[0042] Hereinafter, a gas cooker according a third embodiment will
be described in detail with reference to the drawings.
[0043] FIG. 6 is a plan view showing main parts of the gas cooker
according to the third embodiment.
[0044] Referring to FIG. 6, the flame holes 223 and 233 are
arranged along the circumferences of the first and second front
burners 220 and 230 but not formed at parts of the circumferences.
More specifically, the flame holes 223 and 233 are not formed at
the parts within an area defined by the straight line N1 passing
through the central point A1 of the first front burner 220
perpendicularly to the front end of the top plate 210, the straight
line N2 passing through the central point A2 of the second front
burner 230 perpendicularly to the front end of the top plate 210,
an imaginary straight line N3 passing through the central points A1
and A2, and the front end of the top plate 210. The lower ignition
parts 225 and 235 for mounting of the spark plugs (not shown) may
be mounted at the parts where the flame holes 223 and 233 are not
formed.
[0045] The gas cooker according to the above embodiments is capable
of securing safety for a user using a top burner disposed at a
front of a top plate of the gas cooker. Consequently, the user may
cook foods using the gas cooker more safely.
[0046] Although embodiments have been described with reference to a
number of illustrative embodiments thereof, it should be understood
that numerous other modifications and embodiments can be devised by
those skilled in the art that will fall within the spirit and scope
of the principles of this disclosure. More particularly, various
variations and modifications are possible in the component parts
and/or arrangements of the subject combination arrangement within
the scope of the disclosure, the drawings and the appended claims.
In addition to variations and modifications in the component parts
and/or arrangements, alternative uses will also be apparent to
those skilled in the art.
* * * * *