TECHNICAL FIELD
[0001] The invention relates to a new gas control system enabling gas taps used in domestic
cooking appliances to be touch controlled by the user, and to a cam gas tap operating
synchronically with said system.
[0002] The invention relates to a new gas control system enabling gas taps used in domestic
cooking appliances to be touch controlled by the user, and to a safety cam gas tap
that is suitable for use with said system. A cam disc is present on the pinion provided
in the designed tap. The cam provided on this cam disc and having a special design
pushes the pin forward and transfers the movement to the shuttle, and then the shuttle
presses the magnet, thereby allowing gas passage. When said cam gas tap is connected
to gas control system, double safety is achieved. That is, when burning out occurs
due to external factors (wind, spilling of food, etc.) in the burner, flame holder
detects that and this information is transferred to both magnet and control panel.
In this case, not only magnet automatically stops gas flow, but also the control panel
stops servomotor and makes the gears take their initial position, i.e. closed position,
thereby stopping gas flow. Risks are minimized thanks to this double safety.
STATE OF THE ART
[0003] Within the state of the art, there are many applications regarding either touch button
and touch control systems, or magnet. Now, reference will be made to several existing
applications in literature with regard to subject matter.
[0004] The application made by the firm Electrolux Professional and numbered
EP 2 273 678 A2 discloses a touch button for cooking appliances. As seen in Fig. 1, the user can
adjust any burning state desired by a single touch with his/her finger (F). However,
this application covers only touch button, yet it discloses no gas control system
or gas tap.
[0005] Again, the application made by the firm Electrolux Home Product Corporation and numbered
WO 2006/128831 discloses a touch-sensitive control panel. This panel comprises an outer plate (1)
(i.e. upper part) with external contact areas (100) and a command assembly (2) (i.e.
lower part) with an electronic circuit and components (3) thereof. This application
only discloses a touch-sensitive control panel. However, this application differs
from the subject matter of the present invention and discloses no gas control system,
gas tap or burner connected to said panel. The control panel disclosed in our application
is completely different from the one disclosed therein. Moreover, our invention directly
relates to a new cam gas tap to be operated in coordination with touch-sensitive gas
control systems.
[0006] The application numbered
US 2002/0045142 discloses a touch-controlled gas control system. In this application, as seen in
Fig. 1, the invention comprises a burner (114) where burning occurs and which is composed
of a microcontroller (101), two valves (112, 113), a gas line conduit (123), an igniter
(117), a flame holder, as well as comprising various modules (igniter module, sensor
module, etc.). However, as seen in the figure, this system is quite complex and two
valves (112, 113) within the system are only schematically displayed. In other words,
no novelty or improvement on the valves has been made. Within our invention, on the
other hand, a new simple safety cam gas tap operated in coordination with a gas control
system has been developed.
[0007] The application owned by the firm Orkli S. Coop. and numbered
EP 1 909 029 discloses a safety electromagnetic gas tap. As seen in Fig. 1, an electromagnet (2)
is provided in safety gas tap and the operation of said electromagnet within the system
is explained. In this application, an electromagnet is used in gas tap, just as in
our invention. However, all types of magnets, apart from electromagnet, can be used
as a part of cam gas tap according to our invention. Furthermore, a new cam design
is provided in the present invention in order for the pin to be pushed at a certain
displacement. In this way, the pin is pushed forward at a certain displacement and
transfers the movement to the shuttle, and then the shuttle presses the magnet, thereby
allowing gas passage. Therefore, our invention is quite a different application from
the former application.
[0008] The application owned by the firm Mondragon Componentes S. Coop. and numbered
EP 2 203 044 discloses a gas tap (3) comprising an electromagnet therein, as in the application
numbered
EP 1 909 029. The magnet used therein also functions as a part of the touch-sensitive control
system, just as in the former application. However, a tap with a new cam design has
been provided within our invention, as mentioned before. The magnet used in this tap
is a magnet type other than electromagnet.
[0009] There are many applications regarding present subject matter in literature. Only
some of these applications have been referred above shortly. As seen, there exist
applications regarding the entire touch-sensitive control system, in addition to applications
only focusing on the component called magnet. However, our invention is totally different
from these applications, wherein a new cam gas tap designed in accordance with gas
control systems used in domestic cooking appliances is disclosed. Detailed explanations
relating to the newly designed gas tap are given below.
OBJECT OF THE INVENTION
[0010] The object of the invention is to introduce a new touch-sensitive gas control system
allowing touch control of the gas flow rate directed to outlet in gas taps used in
domestic cooking appliances.
[0011] Another object of the invention is to provide a new touch-sensitive gas control system
where gas flow rate directed to tap outlet can be controlled and desired power level
of burning in the burners is achieved.
[0012] Another object of the invention is to introduce a new cam gas tap operating synchronically
with the developed touch-sensitive gas control system.
[0013] In a preferred embodiment of the invention, touch-sensitive gas control system enabling
gas flow rate directed to burners from gas taps in domestic cooking appliances to
be touch controlled comprises; a microprocessor allowing all the information coming
from software to be processed, a control panel with a signal amplifier for amplifying
the signal coming from flame holder and a digital indicator displaying the position
at which the tap operates, a touch button which is connected to said control panel
by means of a connecting cable and by which the user can control the gas flow rate
as desired, at least one cam gas tap directing the gas to the burners in desired flow
rate, and at least one burner provided thereon with an igniter performing periodical
ignition in accordance with the information sent by the system and with a flame holder
allowing flame consistency.
[0014] In another preferred embodiment of the invention, cam gas tap directing the gas to
the burners by synchronically operating with the control system according to the invention
comprises a body, a gas inlet, a gas outlet, a male, a pin, a magnet, and a shuttle
as main components, as well as comprising a gearbox mounted on said body, a servomotor
located in said gearbox, a big size gear (hereinafter will be referred to as "gear"),
a pinion, and a gear system cover which is mounted on the gearbox in a way to cover
it completely in order to prevent food residues and other external residues from getting
in the system.
[0015] In another preferred embodiment of the invention, provided in gearbox are; a servomotor
housing with a rectangular form, two servomotor fixing ridges in order for the servomotor
located in said housing to be fixed, servomotor fixing screw holes (one for each)
on said servomotor fixing ridges and L-shaped ridges on the edges thereof, two mounting
holes (on the body) in order to allow mounting on the body by means of connecting
screws, a servomotor connecting cable duct for servomotor connecting cable, two screw
holes for mounting on tap body, a circular gear housing, and a circular pinion housing.
[0016] In another preferred embodiment of the invention, a hole through which the male passes
and an inner level of the hole, through which the male passes, that is concentric
to the hole through which said male passes in order for the pinion to be located therein
are provided within the center of the circular pinion housing.
[0017] In another preferred embodiment of the invention, the diameter of the circular gear
housing is equal to or greater than the outer diameter of the gear.
[0018] In another preferred embodiment of the invention, at least five screw holes with
internal threads are provided on the gearbox so as to mount the gear system cover.
[0019] In another preferred embodiment of the invention, the length of said servomotor fixing
ridges in gearbox is the same size as the distance between the lower surface of the
servomotor connecting ridge and the lower surface of servomotor.
[0020] In another preferred embodiment of the invention; a pin hole is provided in circular
pinion housing within the gearbox in order for said pin to pass.
[0021] In another preferred embodiment of the invention, there is an upper surface circular
ridge on gear upper surface and there is a stepped center screw hole in the center
of said upper surface circular ridge.
[0022] In another preferred embodiment of the invention, there is a lower surface circular
ridge on gear lower surface and there is an internal thread center hole in the center
of said lower surface circular ridge.
[0023] In another preferred embodiment of the invention, the diameter of the lower surface
circular gear ridge is equal to or smaller than the diameter of the circular gear
housing on the gearbox.
[0024] In another preferred embodiment of the invention, there are radially scattered threads
around gear center along the spring (w) which a certain gear center angle α faces.
[0025] In another preferred embodiment of the invention, said gear center angle α is between
50° and 200°, depending on operating angles of the tap.
[0026] In another preferred embodiment of the invention, a closed position thread cavity
is provided in said gear such that closed position thread of the pinion will pass,
in order for the position where no gas passes through the tap (closed position) to
be defined.
[0027] In another preferred embodiment of the invention, the ratio of gear outer diameter
to pinion diameter is between 1, 4 and 2.
[0028] In another preferred embodiment of the invention, the pinion is provided with a pinion
hole, a pinion nail located inside said pinion hole, threads radially scattered around
pinion center, and with a cam disc.
[0029] In another preferred embodiment of the invention, an inner level is provided in said
pinion hole.
[0030] In another preferred embodiment of the invention, the width of said pinion nail is
between 1 and 5 mm, such that it will be inserted in male slot/crack.
[0031] In another preferred embodiment of the invention, at least one pinion closed position
thread is provided in said pinion such that it will be placed in gear closed position
thread cavity, in order to define closed position.
[0032] In another preferred embodiment of the invention, closed position thread length of
the pinion is between 3 and 6 mm in order for the position at which no gas passes
through the tap (i.e. closed position) to be defined.
[0033] In another preferred embodiment of the invention, the inner level diameter of the
pinion is between 7 and 14 mm such that outer diameter of the male upper section will
pass.
[0034] In another preferred embodiment of the invention, said pinion is provided with a
cam disk with a cam thereon in order to transfer the movement to the shuttle by pushing
said pin forward.
[0035] In another preferred embodiment of the invention, the cam provided on said cam disc
has an angular surface (c) having a certain angle β1, a flat surface (a) allowing
the pin to be pushed at maximum, and another angular surface (b) having a certain
angle β2.
[0036] In another preferred embodiment of the invention, the angle β1 of the cam provided
on cam disc is between 10° and 40°, and angle β2 is between 20° and 50°.
[0037] In another preferred embodiment of the invention, the width of said cam disc is between
1 and 5 mm.
[0038] In another preferred embodiment of the invention; outer diameter of the pinion is
smaller than the diameter of the circular pinion housing in order for said pinion
to be placed in circular pinion housing on the gearbox.
[0039] In another preferred embodiment of the invention, there are at least five screw holes
on the gear system cover, such that said gearbox will be completely covered/closed
and to allow mounting on gearbox, in order to prevent external residues from getting
in the system.
[0040] In another preferred embodiment of the invention, provided on lower surface of the
gear system cover are; a circular gear housing, a peripheral gear beveling, a circular
pinion housing, a peripheral pinion beveling, a circular vertical extension, a U-shaped
vertical extension and at least two vertical extensions provided between screw holes
and in such a form that will allow the attachment of the gear system cover to mounting
cavities.
[0041] In another preferred embodiment of the invention, outer diameter of the circular
vertical extension is equal to or smaller than the diameter of the pinion hole to
serve as a bearing for the pinion.
[0042] In another preferred embodiment of the invention, the diameter of the circular gear
housing provided on gear system cover is equal to or greater than the diameter of
the ridge provided on the upper surface of the gear.
[0043] In another preferred embodiment of the invention, the diameter of the circular pinion
housing provided on gear system cover is equal to or greater than the diameter of
pinion.
[0044] In another preferred embodiment of the invention, the width of said U-shaped vertical
extension is the same size as that of servomotor housing.
[0045] The structural and characteristic features and all advantages of the invention will
be understood more clearly with the detailed description written by referring to the
following figures; therefore, the evaluation needs to be done by taking these figures
and the detailed description into consideration.
DESCRIPTION OF THE FIGURES
[0046]
Fig. 1 is the overall perspective view of a cooker provided with touch-sensitive gas
control system according to the invention and with cam gas tap according to the invention,
Fig. 2 is the perspective view showing the inner part of the cooker provided with
touch-sensitive gas control system according to the invention and with cam gas tap
according to the invention,
Fig. 3 is the cross-sectional view of a cooker provided with touch-sensitive gas control
system according to the invention and with cam gas tap according to the invention,
Fig. 4 is the overall schematic view of the gas control system used in domestic cookers,
Fig. 5 is the overall perspective view of the cam gas tap according to the invention,
Fig. 6 is the exploded view of the cam gas tap according to the invention,
Fig. 7 is another perspective view of the cam gas tap according to the invention,
Fig. 8 is the perspective view showing the inner part of the cam gas tap according
to the invention,
Fig. 9 is the perspective view of the male of the cam gas tap according to the invention,
Fig. 10 is the perspective view showing the gearbox of the cam gas tap according to
the invention,
Fig. 11 is another perspective view showing the gearbox of the cam gas tap according
to the invention,
Fig. 12 is the top view of the gearbox of the cam gas tap according to the invention,
Fig. 13 is the cross-sectional view of the gearbox of the cam gas tap according to
the invention,
Fig. 14 is the perspective view of the servomotor of the cam gas tap according to
the invention,
Fig. 15 is another perspective view of the servomotor of the cam gas tap according
to the invention,
Fig. 16 is the perspective view showing the lower part of the gear of the cam gas
tap according to the invention,
Fig. 17 is the top view showing the lower part of the gear of the cam gas tap according
to the invention,
Fig. 18 is the perspective view showing the upper part of the gear of the cam gas
tap according to the invention,
Fig. 19 is the top view showing the upper part of the gear of the cam gas tap according
to the invention,
Fig. 20 is the perspective view showing the lower part of the pinion of the cam gas
tap according to the invention,
Fig. 21 is the top perspective view of the pinion of the cam gas tap according to
the invention,
Fig. 22 is the front view of the pinion of the cam gas tap according to the invention,
Fig. 23 is the top view of the pinion of the cam gas tap according to the invention,
Fig. 24 is the perspective view showing the upper part of the gear system cover of
the cam gas tap according to the invention,
Fig. 25 is the perspective view showing the lower part of the gear system cover of
the cam gas tap according to the invention,
Fig. 26 is the top view of the gear system cover of the cam gas tap according to the
invention,
Fig. 27 is the cross-sectional view showing the closed position of the cam gas tap
according to the invention,
Fig. 28 is the cross-sectional view showing the cam gas tap according to the invention
when it is started to be pushed at a certain displacement,
Fig. 29 is the cross-sectional view showing the cam gas tap according to the invention
when the pin is pushed at maximum displacement.
REFERENCE NUMERALS
[0047]
A. Touch-sensitive gas control system
B. Cooker
1. Control panel
1.1. Microprocessor
1.2. Signal amplifier
1.3. Digital indicator
1.4. Touch button
1.5. Touch button connecting cable
1.6. Power cable
1.7. Gas flow
Q. Flow rate of the gas delivered to the burner (3) from the tap (2) by means of interconnecting
pipes
2. Gas tap
2.1. Body
2.2. Gas inlet
2.3. Gas outlet
2.4. Male
2.4.1. Male (2.4) crack
2.4.2. Gas passage holes and channels of the male (2.4)
2.4.3. Outer diameter of the upper part of the male (2.4) 2.5. Pin
2.5.1. Pin (2.5) diameter
2.6. Magnet
2.6.1. Connecting cable of the magnet (2.6)
2.7. Shuttle
2.8. Spring
2.9. Union
2.10. Adjustment screw
2.11. Gasket
2.12. Gearbox
2.12.1. Screw hole
2.12.2. Pin (2.5) hole
2.12.3. Mounting hole onto the body (2.1)
2.12.4. Fixing screw hole of servomotor (2.14)
2.12.5. Connecting cable duct of servomotor (2.14)
2.12.6. Male (2.4) passage hole
2.12.6.1. Inner level of male passage hole (2.12.6)
2.12.6.1.1. Diameter of the inner level (2.12.6.1) of male passage hole
2.12.6.2. Diameter of male passage hole (2.12.6)
2.12.7. Servomotor (2.14) housing
2.12.7.1. Width of servomotor housing (2.12.7)
2.12.8. Circular gear (2.15) housing
2.12.8.1. Diameter of circular gear housing (2.12.8)
2.12.9. Circular pinion (2.16) housing
2.12.9.1. Diameter of circular pinion housing (2.12.9)
2.12.10. Mounting holes of gear system cover (2.13)
2.12.11. Fixing ridge of servomotor (2.14)
2.12.11.1. Length of fixing ridges (2.12.11)
2.12.11.2. L-shaped ridges
2.12.12. Connecting screws
b2. Depth of the inner level of male passage hole (2.12.6)
2.13. Gear system cover
2.13.1. Screw holes
2.13.1.1. Inner level of screw holes (2.13.1)
2.13.2. Lower surface
2.13.2.1. Circular gear housing
2.13.2.1.1. Diameter of circular gear housing (2.13.3.1)
2.13.2.2. Peripheral gear beveling
2.13.2.3. Circular pinion housing
2.13.2.3.1. Diameter of circular pinion housing (2.13.3.3)
2.13.2.4. Peripheral pinion beveling
2.13.2.5. Circular vertical extension
2.13.2.5.1. Inner diameter of circular vertical extension (2.13.3.5)
2.13.2.5.2. Outer diameter of circular vertical extension (2.13.3.5)
2.13.2.6. U-shaped vertical extension
2.13.2.6.1. Width of U-shaped vertical extension (2.13.3.6)
2.13.2.7. Vertical extensions
2.13.3. Upper surface
2.13.4. Connecting screw
2.14. Servomotor
2.14.1. Servomotor (2.14) outlet gear
2.14.2. Connecting cable of servomotor (2.14)
2.14.3. Fixing screw of servomotor (2.14)
2.14.4. Connecting projection of servomotor (2.14)
2.14.4.1. Lower surface of servomotor connecting projection (2.14.4)
2.14.5. Lower surface of servomotor (2.14)
2.14.6. Distance between lower surface (2.14.4.1) of servomotor connecting projection
and lower surface (2.14.5) of servomotor
2.15. Gear
2.15.1. Gear upper surface
2.15.1.1. Upper surface circular ridge
2.15.1.1.1. Diameter of upper surface circular ridge (2.15.1.1)
2.15.1.2. Stepped center screw hole
2.15.2. Gear lower surface
2.15.2.1. Lower surface circular ridge
2.15.2.1.1. Diameter of lower surface circular ridge (2.15.2.1)
2.15.2.2. Stepped and internal threaded center hole in gear lower surface (2.15.2)
2.15.3. Radially scattered threads around gear center on the spring section (w) which
a certain angle α faces
2.15.3.1. Closed position thread cavity
2.15.4. Connecting screw of gear (2.15)
2.15.5. Outer diameter of gear (2.15)
2.15.6. Center hole of gear (2.15)
α. Center angle of gear (2.15)
w. the spring which angle (α) faces
2.16. Pinion
2.16.1. Pinion (2.16) hole
2.16.1.1. Inner level
2.16.1.1.1. Inner level (2.16.1.1) diameter
2.16.1.2. Diameter of pinion hole (2.16.1)
2.16.2. Pinion (2.16) nail
2.16.2.1. Width of pinion nail (2.16.2)
2.16.3. Radially scattered threads around pinion (2.16) center
2.16.4. Closed position thread of pinion (2.16)
2.16.4.1. Closed position thread length
2.16.5. Upper surface of pinion (2.16)
2.16.6. Upper surface of thread section in pinion (2.16)
2.16.7. Pinion (2.16) diameter
2.16.8. Pinion (2.16) outer diameter
2.16.9. Cam disc
2.16.9.1. Cam
a. Flat surface of cam (2.14.5.1)
b. Angular surface of cam (2.14.5.1)
c. Another angular surface of cam (2.14.5.1)
β1. Angle (b) of angular surface of cam
β2. Angle (c) of another angular surface of cam
2.16.9.2. Thickness of cam disc (2.14.5)
b1. Distance between upper surface (2.16.5) of pinion and upper surface (2.16.6) of
thread section
3. Burner
3.1. Igniter
3.2. Igniter connecting cable
3.3. Flame holder
3.4. Flame holder connecting cable
3.5. Flame holder grounding cable
4. Cooker (B) grill
5. Transformer
6. Cooker (B) lower plate
7. Cooker (B) upper glass
8. Cooker (B) interconnecting pipes
9. Cooker (B) fan
10. Cooker (B) indicator
DETAILED DESCRIPTION OF THE INVENTION
[0048] Fig. 1 is the overall perspective view of a cooker (B) which is provided with touch-sensitive
gas control system (A) according to the invention, and to which cam gas tap (2) according
to the invention operating in coordination with said gas control system (A) is mounted,
is given. As seen in figure, four burners (3) and individual grills (4) for each burner
(3) are provided on the cooker (B). Moreover, there exist touch button (1.4), digital
indicator (1.3) and an indicator (10) to facilitate burner (3) choice for the user,
in order to touch control each burner (3) on the lower glass (7) of the cooker (B).
In Fig. 2, another perspective view showing the inner part of the same cooker (B)
is given. As seen in figure, four individual taps (2) for directing the gas to each
burner (3) are provided, said taps being located on the lower plate (6) of the cooker.
The gas exiting gas taps (2) is transferred to burners (3) by means of interconnecting
pipes (8). Again, electrical energy to individual igniters (3.1) provided for each
burner (3) is provided by the transformer (5) so as to ignite the burners (3). Moreover,
since electronic components are present in the system, a fan (9) is provided in said
cooker (B) in order to prevent these components from being damaged by heat. In Fig.
3, cross-sectional view of the cooker (B) to which cam gas tap (2) according to the
invention is mounted is given.
[0049] In Fig. 4, schematic view of touch-sensitive gas control system (A) developed for
domestic cookers or ovens, is given. The system is composed of a control panel (1),
at least one gas tap (2) directing the gas, and at least one burner (3) where the
gas at a certain flow rate (Q) passing through this gas tap (2) is directed and where
burning takes place. Provided within said control panel (1) are; a microprocessor
(1.1) controlling the system and enabling all the information coming from software
to be processed, a digital indicator (1.3) indicating the flow rate passage position
of the tap (2), and a signal amplifier (1.2) amplifying the signal coming from flame
holder (3.3) to such a level that can be detected by software. In addition, a touch
button (1.4) connected to said control panel (1) by means of a connecting cable (1.5)
and helping the user to adjust the tap (2) to the desired position is provided. In
order to exemplify the operation of the system (A), when the user wants the burner
(3) to burn in low state, s/he chooses this state via touch button (1.4) and this
state is displayed in digital indicator (1.3). Afterwards, the information coming
from software is processed by microprocessor (1.1) and then is transferred to servomotor
(2.14). Servomotor (2.14) transfers the movement to gear (2.15), and the gear (2.15)
transfers it to the pinion (2.16) on which a cam (2.16.9.1) is provided. Upon rotation
of the pinion (2.16), the cam (2.16.9.1) provided on cam disc (2.16.9) pushes the
pin (2.5) forward and transfers the movement to the shuttle (2.7). The shuttle (2.7),
in turn, presses the magnet (2.6) and allows gas passage therein. Thus, the gas at
a certain flow rate (Q) passing through adjustment screw (2.10) holes in the male
(2.4) directing the gas is directed to tap gas outlet (2.3). The gas directed to gas
outlet (2.3) is transferred to the burner (3) where burning will take place, by means
of interconnecting pipes (8). That is, a gas flow (1.7) from the tap (2) towards the
burner (3) takes place. Other information processed by microprocessor (1.1) is that
the igniter (3.1) performs ignition at certain intervals (e.g. every five minutes)
in accordance with software. After burning occurs, flame holder (3.3) detects the
heat, thereby providing burning consistency. This information coming from flame holder
(3.3) not only keeps the magnet (2.6) open, but also it is amplified by signal amplifier
(1.2) such that software can detect and is processed in control panel (1). Thus, burning
at desired power (kW) level by the user is performed in the burner (3). Again, while
burning is going on at a certain power level, the user interferes in the process by
using touch button (1.4) and s/he can increase or decrease the flow rate of the gas
directed to burner (3). Moreover, s/he can stop burning by using touch button (1.4).
Here, when burning out occurs due to external factors (wind, spilling of food, etc.)
in the burner (3), flame holder (3.3) detects it. The information detected reaches
to both control panel (1) and magnet (2.6). In other words, not only control panel
(1) stops servomotor (2.14) and takes the gears (2.15, 2.16) to "0" reference point
(closed position), thereby stopping gas flow; but also magnet (2.6) stops gas flow.
Therefore, gas leakage risks are minimized since double safety is provided. Referring
to connection type of the system (A) in Fig. 3, a power cable (1.6), an igniter connecting
cable (3.2), a flame holder connecting cable (3.4), a flame holder grounding cable
(3.5), a touch button connecting cable (1.5), and a servomotor connecting cable (2.14.2)
are included in control panel (1). Again, magnet connecting cable (2.6.1) is connected
to flame holder connecting cable (3.4). Hence, the information coming from flame holder
(3.3) reaches both to magnet (2.6) and control panel (1), thereby guaranteeing double
safety.
[0050] In Fig. 5, the perspective view of a new cam gas tap (2) operating in accordance
with the newly developed touch-sensitive gas control system (A) is given. The cam
gas tap (2) according to the invention comprises, in most general terms, a body (2.1),
a gas inlet (2.2), a gas outlet (2.3), a shuttle (2.7), an adjustment screw (2.10),
a male (2.4), a spring (2.8) and a magnet (2.6). Exploded view of the components constituting
gas tap (2) is given in Fig. 6 for a better understanding thereof. As seen in figure,
the tap (2) is provided with shaft and cover, as in conventional taps. The gearbox
(2.12) is mounted on the body (2.1) of said tap (2) by means of two connecting screws
(2.12.12). Servomotor (2.14), gear (2.15) and pinion (2.16) are located in said gearbox
(2.12). Servomotor (2.14) is fixed inside the gearbox (2.12) by means of at least
one fixing screw (2.14.3). Gear (2.15) and pinion (2.16) are located in housings (to
be further explained) (1.12.8, 2.12.9) within gearbox (2.12) and are connected to
outlet gear (2.14.1) of servomotor (2.14) via a gear connecting screw (2.15.4). Finally,
the gear system cover (2.13) is mounted on said gearbox (2.1) such that it will be
entirely closed, by means of five connecting screws (2.13.4). The reason for using
this gear system cover (2.13) within the system is to prevent the system from being
damaged and to prolong its service life, by preventing food or other external residues
from getting in gearbox (2.12). Another perspective view of the tap (2) according
to the invention is given in Fig. 7, while the perspective view showing the inner
part of the cam gas tap (2), without gear system cover (2.13) thereon, is given in
Fig. 8. The male (2.4) as seen in Fig. 9 enables the gas at desired flow rate (Q)
to be directed to outlet (2.3) in accordance with the burning state chosen via touch
button (1.4). Gas passage at desired flow rate (Q) is performed by means of holes
and channels (2.4.2) on the male (2.4).
[0051] Overall perspective views of the gearbox (2.12) are given in Figs. 10 and 11. As
seen in figures, a rectangular servomotor housing (2.12.7) is provided in said gearbox
(2.12). Servomotor (2.14) driving the system is located in said servomotor housing
(2.12.7). Two servomotor fixing ridges (2.12.11) are provided in said rectangular
servomotor housing (2.12.7). In order for the servomotor (2.14) to be located in said
servomotor housing (2.12.7) properly, the length (2.12.11.1) of said fixing ridges
is the same size as the distance (2.14.6) between lower surface (2.14.4.1) of servomotor
connecting ridge (2.14.4) and servomotor lower surface (2.14.5). Again, in order for
servomotor (2.14) to be fixed, there are L-shaped ridges (2.12.11.2) on the edges
of said servomotor fixing ridges (2.12.11). Moreover, one servomotor fixing screw
hole (2.12.4) is provided for each one of said servomotor fixing ridge (2.12.11).
In this way, servomotor (2.14) is mounted on the gearbox (2.12) by means of at least
one servomotor fixing screw (2.14.3). As the outlet of servomotor connecting cable
(2.14.2), a servomotor connecting cable duct (2.12.5) is designed in the lower part
of the gearbox (2.12). At least five internal threaded screw holes (2.12.1), two mounting
holes (2.12.3) onto the body and a pin hole (2.12.2) are provided on gearbox (2.12).
An outlet gear (2.14.1) is provided in the upper part of servomotor (2.14). This outlet
gear (2.14.1) is placed in stepped and internal threaded center hole (2.15.2.2) in
lower surface (2.15.2) of the gear (2.15) and is mounted by means of a gear connecting
screw (2.15.4) located in gear center hole (2.15.6), thereby rotation movement being
transferred to the gear (2.15). Therefore, the size of said outlet gear (2.14.1) is
such that it will be properly located in said internal thread center hole (2.15.2.2)
and thread features thereof are consistent with one another. Thus, the gear (2.15)
is placed in circular gear housing (2.12.8) on the gearbox (2.12). Therefore, the
diameter (2.12.8.1) of said circular gear housing is equal to or greater than the
outer diameter (2.15.5) of the gear. In Fig. 12, top view of the gearbox (2.12) is
given. Here, the diameter (2.12.9.1) of circular pinion housing (2.12.9) is equal
to or greater than outer diameter (2.16.8) of the pinion. Again, a hole (2.12.6) through
which a male in the same center as said circular pinion housing (2.12.10) is provided.
When gearbox (2.12) is mounted on the tap (2), the components called male (2.4) passes
through this hole (2.12.6). Therefore, the diameter (2.12.6.2) of the hole (2.12.6)
through which said male passes is equal to or greater than the diameter (2.4.3) of
the upper part of the male. Furthermore, an inner level (2.12.6.1) of the hole through
which a male passes with a greater diameter than the diameter (2.12.6.2) of the hole
(2.12.6) through which said male passes is provided. In this way, the male (2.4) is
enabled to pass through pinion hole (2.16.1) and the pinion (2.16) is placed on said
inner level (2.12.6.1). Therefore, the diameter (2.16.1.1.1) of the pinion hole level
is such that the outer diameter (2.4.3) of the upper part of the male will pass, preferably
between 7 and 14 mm. Another aspect to be taken into consideration in order for the
pinion (2.16) to be mounted on gearbox (2.12) is that pinion nail (2.16.2) provided
on pinion (2.16) and placed in pinion hole (2.16.1) passes through male crack (2.4.1).
Therefore, the width (2.16.2.1) of said pinion nail (2.16.2) can be between 1 and
4 mm, such that it will pass through male crack (2.4.1). Again, radially scattered
threads (2.16.3) around pinion (2.16) center are provided. Here, the function of the
pinion nail (2.16.2) is to transfer rotation movement coming from the gear (2.15)
to the male (2.4). Gas passage at a certain flow rate (Q) through the holes and channels
(2.4.2) on the male (2.4) is permitted by the rotation movement transferred to the
male (2.4).
[0052] In Figs. 16, 17, 18, and 19, different views of the designed gear (2.15) are given
for a better understanding thereof. As seen in figures, radially scattered threads
(2.13.4) are provided in gear (2.15) around center thereof, on the spring section
(w) which a certain center angle α faces. Said gear center angle α can be between
50° and 200°, depending on operating angles of the tap (2). Thread length and thread
cavities of all of these threads (2.15.3) are the same. As seen in Fig. 19, only one
closed position thread cavity (2.15.3.1) with different size from the others is provided.
The case when closed position thread (2.16.4) of the pinion (2.16) is placed in at
least one closed position thread cavity (2.15.3.1) is "0" reference position at which
no gas passage occurs in the tap (2), i.e. closed position. When this thread (2.14.4)
leaves said thread cavity, i.e. when gears (2.15, 2.16) rotate, the gas passing through
the male (2.4) at a certain flow rate (Q) is directed to outlet (2.3). The ratio of
gear outer diameter (2.15.5) to pinion diameter (2.16.7) is between 1,4 and 2. In
Figures 20, 21, 22, and 23, different views of the pinion (2.16) are given. As seen
in figures, a pinion hole (2.16.1) through which the male (2.4) passes, a pinion nail
(2.16.2) attached to male (2.4) crack, threads (2.16.3) that are radially scattered
around pinion center, and a cam disc (2.16.9) are provided on the pinion (2.16). The
function of the cam (2.16.9.1) provided on said disc (2.16.9) is to push the pin (2.5)
at a certain displacement and allow the movement to be transferred to the shuttle
(2.7). The shuttle (2.7) presses magnet (2.6) with this movement; thus, the gas is
directed to the male (2.4). As seen in Fig. 15, three different surfaces are present
on cam (2.16.9.1). These are; a flat surface (a), an angular surface (c) having an
angle β1, and another angular surface (b) having an angle β2. In Fig. 27, cross-sectional
view of the cam gas tap (2) according to the invention in closed position is given.
As seen in figure, since the pin (2.5) does not contact with the cam (2.16.9.1), it
is not pushed forward; therefore, no gas passage occurs because the shuttle (2.7)
does not press the magnet (2.6). In Fig. 28, surface (b) on cam (2.16.9.1) presses
the pin (2.5) and pushes it forward at a certain displacement, and then transfers
the movement to the shuttle (2.7), the shuttle, in turn, presses the magnet (2.6),
thereby allowing gas passage. When the pin (2.5) contacts with flat surface (a) of
said cam as in Fig. 29, it is pushed forward at maximum displacement, the shuttle
(2.7) moves and presses the magnet (2.6), thereby allowing gas passage again. In case
of angular surfaces (b) and (c), thanks to the angular surface form thereof, the pin
(2.5) is pushed forward at a certain displacement and until it reaches to flat surface
(a), i.e. maximum displacement. Preferably, said angle β1 can be between 10° and 40°,
while angle β2 can be between 20° and 50°. Again, the thickness (2.16.9.1) of said
cam disc (2.16.9) can be between 1 mm and 5 mm.
[0053] In Figures 24, 25, and 26, different views of the gear system cover (2.13) are shown.
As seen in top perspective view of the gear system cover (2.13) in Fig. 24, it is
designed in such a form that it will completely cover the gearbox (2.12). Again, at
least five screw holes (2.13.1) are provided on the upper surface (2.13.3) of said
gear system cover (2.13). Each one of said screw holes (2.13.1) has screw hole inner
levels (2.13.1.1) in order for screw heads to be placed thereto. All of these screw
holes (2.13.1) on the upper surface (2.13.3) are opened into the lower surface (2.13.2)
of the cover as seen in Fig. 25. Referring to bottom perspective view of the gear
system cover (2.13) in Fig. 25, there exist a circular gear housing (2.13.2.1), a
circular pinion housing (2.13.2.3) and a circular vertical extension (2.13.2.5). Said
circular gear housing (2.13.2.1) and circular pinion housing (2.13.2.3) have peripheral
beveling (2.13.2.2, 2.13.2.4) (one for each). Upper surface circular ridge (2.15.1.1)
of the gear (2.15) is placed in said circular gear housing (2.13.2.1). Therefore,
the diameter (2.13.2.1.1) of the circular gear housing (2.13.2.1) can be equal to
or greater than the of upper surface ridge diameter (2.15.1.1.1) of the gear (2.15).
Again, a pinion (2.16) is positioned in circular pinion housing (2.13.2.3) on the
gear system cover (2.13). The diameter (2.13.2.3.1) of this circular pinion housing
(2.13.3.3) can be equal to or greater than the diameter (2.16.7) of the pinion. The
circular vertical extension (2.13.2.5) on the lower surface (2.13.2) of the gear system
cover (2.13) is designed for centering of the pinion (2.16). It is required that the
outer diameter (2.13.2.5.2) of said circular vertical extension (2.13.2.5) is smaller
than the diameter (2.16.1.2) of the pinion (2.16) hole. Again, in order to facilitate
mounting of the cover (2.13) on the gearbox (2.12), vertical extensions (2.13.2.6,
2.13.2.7) are provided. U-shaped vertical extension (2.13.2.6) facilitates positioning
of the cover (2.13) in servomotor housing (2.12.7) section, as well as preventing
wrong mounting. Therefore, the width (2.13.2.6.1) of said extension and the width
(2.12.7.1) of servomotor housing in gearbox (2.1) are of the same size. Again, vertica
extensions (2.13.2.7) between screw holes (2.13.1) are designed such that they will
be engaged in gear system cover mounting cavities (2.12.10) on the gearbox (2.12).
These vertical extensions (2.13.2.7) are designed for mounting the gear system cover
(2.13) on the gearbox (2.12) easily. In this way, gear system cover (2.14) is mounted
on gearbox (2.12) by means of at least five connecting screws (2.13.5). Due to the
fact that gear system cover (2.13) is mounted on gearbox (2.12) so as to completely
cover it, food residues and other external residues are prevented from getting in
gearbox (2.12), thereby avoiding damages to the system operation, as well as prolonging
service life thereof.
[0054] The protection scope of this application is stated under the claims and cannot be
restricted to the descriptions given only for illustrative purposes, because it is
clear that any person skilled in the art can produce the novelty provided with the
invention, without drifting apart from the main subject of the invention and/or s/he
can apply this novelty to the other fields used in the related technique with similar
purposes. Therefore, it is obvious that such embodiments will lack novelty, and especially
will lack the criteria of exceeding the prior art, i.e. comprising inventive step.
1. A touch-sensitive gas control system (A) enabling gas flow rate directed to burners
from gas taps in domestic cooking appliances to be touch controlled; characterized in that it comprises; a microprocessor (1.1) allowing all the information coming from software
to be processed, a control panel (1) with a signal amplifier (1.2) for amplifying
the signal coming from flame holder (3.3) and a digital indicator (1.3) displaying
the position at which the tap (2) operates, a touch button (1.4) which is connected
to said control panel (1) via a connecting cable (1.5) and by which the user can control
the gas flow rate as desired, at least one cam gas tap (2) directing the gas to the
burners in desired flow rate (Q), and at least one burner (3) provided thereon with
an igniter (1.3) performing periodical ignition in accordance with the information
sent by the system and with a flame holder (3.3) allowing flame consistency.
2. A cam gas tap (2) which is used in domestic cooking appliances and which directs the
gas to the burners (3) by synchronically operating with the control system (A) according
to Claim 1 and which allows touch control of the gas flow rate; characterized in that it comprises a body (2.1), a gas inlet (2.2), a gas outlet (2.3), a male (2.4), a
pin (2.5), a magnet (2.6), and a shuttle (2.7) as main components, as well as comprising
a gearbox (2.12) mounted on said body (2.1), a servomotor (2.14) located in said gearbox
(2.12), a gear (2.15), a pinion (2.16), and a gear system cover (2.13) which is mounted
on the gearbox (2.12) in a way to cover it completely in order to prevent food residues
and other external residues from getting in the system.
3. A gearbox (2.12) according to Claim 2; characterized in that it comprises a servomotor housing (2.12.7) with a rectangular form, two servomotor
fixing ridges (2.12.11) in order for the servomotor (2.14) located in said housing
(2.12.7) to be fixed, servomotor fixing screw holes (2.12.14) (one for each) on said
servomotor fixing ridges (2.12.11) and L-shaped ridges (2.12.13.2) on the edges thereof,
two mounting holes (2.12.3) (on the body) in order to allow mounting on the body (2.1)
by means of connecting screws (2.12.14), a servomotor connecting cable duct (2.12.5)
for servomotor connecting cable (2.14.2), two screw holes (2.12.1) for mounting on
tap body (2.1), a circular gear housing (2.12.8), and a circular pinion housing (2.12.9).
4. A gearbox (2.12) according to Claims 2 and 3; characterized in that a hole (2.12.6) through which the male (2.4) passes and an inner level (2.12.6.1)
of the hole, through which the male passes, that is concentric to the hole (2.12.6)
through which said male passes in order for the pinion (2.15) to be located therein
are provided within the center of the circular pinion housing (2.12.9).
5. A gearbox (2.12) according to Claims 2 to 4; characterized in that the diameter (2.12.8.1) of the circular gear housing (2.12.8) is equal to or greater
than the outer diameter (2.15.5) of the gear.
6. A gearbox (2.12) according to Claims 2 to 5; characterized in that at least five screw holes (2.12.1) with internal threads are provided thereon so
as to mount the gear system cover (2.13).
7. A gearbox (2.12) according to Claims 2 to 6; characterized in that the length (2.12.11.1) of said servomotor fixing ridges (2.12.11) is the same size
as the distance (2.14.6) between lower surface (2.14.4.1) of servomotor connecting
ridge (2.14.4) and servomotor lower surface (2.14.5).
8. A gearbox (2.12) according to Claims 2 to 7; characterized in that a pin hole (2.12.2) is provided in circular pinion housing (2.12.9) in order for
said pin (2.5) to pass.
9. A gear (2.15) according to Claim 2; characterized in that there is an upper surface circular ridge (2.15.1.1) on gear upper surface (2.15.1)
and there is a stepped center screw hole (2.15.1.2) in the center of said upper surface
circular ridge (2.15.1.1).
10. A gear (2.15) according to Claims 2 to 9; characterized in that it has a lower surface circular ridge (2.15.2.1) in the lower surface (2.15.2) thereof
and a stepped and internal threaded center hole (2.15.2.2) in the center of said lower
surface circular ridge (2.15.2.1).
11. A gear (2.15) according to Claims 2, 9 and 10; characterized in that the diameter (2.15.2.1.1) of lower surface circular ridge (2.15.2.1) is equal to
or smaller than the diameter (2.12.8.1) of circular gear housing on gearbox (2.12).
12. A gear (2.15) according to Claims 2, and 9 to 11; characterized in that radially scattered threads (2.15.3) around the center of the gear (2.15) along the
spring (w) which a certain angle α of the gear faces are provided.
13. A gear (2.15) according to Claims 2, and 9 to 12; characterized in that said gear center angle α is between 50° and 200°, depending on operating angles of
the tap (2).
14. A gear (2.15) according to Claims 2, and 9 to 13; characterized in that a closed position thread cavity (2.15.3.1) is provided in said gear (2.15) such that
closed position thread (2.16.4) of the pinion will pass, in order for the position
where no gas passes through the tap (2) (closed position) to be defined.
15. A gear (2.15) according to Claims 2, and 9 to 14; characterized in that the ratio of gear outer diameter (2.15.5) to pinion diameter (2.16.7) is between
1,4 and 2.
16. A pinion (2.16) according to Claim 2; characterized in that a pinion hole (2.16.1), a pinion nail (2.16.2) located inside said pinion hole (2.16.1),
threads (2.16.3) that are radially scattered around pinion center, and a cam disc
(2.16.9) are provided thereon.
17. A pinion (2.16) according to Claims 2 and 16; characterized in that there is an inner level (2.16.1.1) in said pinion hole (2.16.1).
18. A pinion (2.16) according to Claims 2, 16 and 17; characterized in that the width (2.16.2.1) of said pinion nail (2.16.2) is between 1 and 5 mm, such that
it will be attached in male crack (2.4.1).
19. A pinion (2.16) according to Claims 2, and 16 to 18; characterized in that at least one pinion closed position thread (2.16.4) is provided therein such that
it will be placed in gear closed position thread cavity (2.15.3.1), in order to define
closed position.
20. A pinion closed position thread (2.16.4) according to Claim 19; characterized in that closed position thread length (2.16.4.1) of the pinion is between 3 and 6 mm in order
for the position at which no gas passes through the tap (2) (i.e. closed position)
to be defined.
21. A pinion (2.16) according to Claims 2, and 16 to 20; characterized in that the diameter (2.16.1.1.1) of the inner level is between 7 and 14 mm, such that the
diameter (2.4.3) of the upper part of the male will pass.
22. A pinion (2.16) according to Claims 2, and 16 to 21; characterized in that a cam disc (2.16.9) with a cam (2.16.9.1) thereon is provided in said pinion (2.16)
in order for said pin (2.5) to be pushed forward and to transfer the movement to the
shuttle (2.7).
23. A pinion (2.16) according to Claims 2, and 16 to 22; characterized in that the cam (2.14.5.1) provided on said cam disc (2.16.9) has an angular surface (c)
having a certain angle β1, a flat surface (a) allowing the pin (2.5) to be pushed
at maximum, and another angular surface (b) having a certain angle β2.
24. A pinion (2.16) according to Claims 2, and 16 to 23; characterized in that said angle β1 of the cam (2.16.9.1) provided on said cam disc (2.16.9) is between
10° and 40°, while angle β2 is between 20° and 50°
25. A pinion (2.16) according to Claims 2, and 16 to 24; characterized in that the thickness (2.16.9.2) of said cam disc (2.16.9) is between 1 mm and 5 mm.
26. A pinion (2.16) according to Claims 2, and 17 to 25; characterized in that the outer diameter (2.16.8) of the pinion is smaller than the diameter (2.12.9.1)
of the circular pinion housing, in order for said pinion (2.16) to be placed in circular
pinion housing (2.12.9) on the gearbox (2.12).
27. A gear system cover (2.13) according to Claim 2; characterized in that there are at least five screw holes (2.13.1) thereon, such that said gearbox (2.12)
will be completely covered and to allow mounting on gearbox (2.12), in order to prevent
external residues from getting in the system.
28. A gear system cover (2.13) according to Claims 2 and 27; characterized in that a circular gear housing (2.13.2.1), a peripheral gear beveling (2.13.2.2), a circular
pinion housing (2.13.2.3), a peripheral pinion beveling (2.13.2.4), a circular vertical
extension (2.13.2.5), a U-shaped vertical extension (2.13.2.6) and at least two vertical
extensions (2.13.2.7) provided between screw holes (2.13.1) and in such a form that
will allow the attachment of the gear system cover to mounting cavities (2.12.10)
are provided on the lower surface (2.13.2) thereof.
29. A gear system cover (2.13) according to Claims 2, 27 and 28; characterized in that the outer diameter (2.13.2.5.2) of the circular vertical extension is equal to or
smaller than the diameter (2.16.1.2) of the pinion hole to serve as a bearing for
the pinion (2.16).
30. A gear system cover (2.13) according to Claims 2, and 27 to 29; characterized in that the diameter (2.13.2.1.1) of the circular gear housing provided thereon is equal
to or greater than the diameter (2.15.1.1.1) of the ridge provided on the upper surface
of the gear (2.15).
31. A gear system cover (2.13) according to Claims 2, and 27 to 30; characterized in that the diameter (2.13.2.3.1) of the circular pinion housing provided thereon is equal
to or greater than the diameter (2.16.8) of the pinion.
32. A gear system cover (2.13) according to Claims 2, and 27 to 31; characterized in that the width (2.13.2.6.1) of said U-shaped vertical extension is the same size as the
width (2.12.7.1) of the servomotor housing.