TECHNICAL FIELD
[0001] The invention relates to a safety tap with dual outlets, designed for controlling
the gas sent to different rings of the multiple gas burners used in domestic cooking
appliances. Today, the gas is directed to different rings of multiple gas burners,
by providing the taps with dual outlets. In this way, it is provided that the user
obtains the suitable burning for power preference in the multiple burners, by providing
the desired gaseous flow rate in the tap. However, as is known, it required that such
factors as size, weight, ease of production, and cost should be taken into account
in tap designs, as well as the function thereof. Therefore, different designs are
introduced for optimizing all these factors.
STATE OF THE ART
[0002] There are single output taps within the state of the art. For instance, a fixed tap
with a single output is disclosed in the patent application of Fagor S. Coop. Ltda
numbered
GB 2261495. However, since gas supply is provided for all of the rings of the multiple gas burners
from a single output in such taps, power preference is restricted, depending on the
object to be heated by the user. Therefore, cooktop taps with dual outlets have been
developed and various designs of such taps have been introduced within the state of
the art.
[0003] The patent application of SABAF S.P.A numbered
WO 2005/003610 discloses a gas tap with at least one gas inlet and at least one gas outlet. In the
said gas tap, gas passage can be adjusted depending on the rotation angle of the male
by the rotation movement provided for the shaft. In this application, the section
where gas inlet and gas outlet holes are provided and the section where safety valve
is provided are produced individually in the body of the said tap; and gasket, silicon
etc. are provided between these two sections for sealing purposes, and then the tap
body is obtained by joining these sections by means of bolts or screws. Hence, not
only the tap is difficult to produce due to its body, but production time and costs
are quite high, as well. Furthermore, the size of the said tap could not be scaled
down and it is produced as such. This, in turn, results in increased sizes of cookers
and ovens in accordance with the gas tap, as well as occupying more space in kitchens.
[0004] Again, within the state of the art, no space is provided between gas outlets in the
current safety taps with dual outlets. The same is true for safety valve. The safety
valve is located in the same direction as gas outlets and there is no space between
it and gas outlet. Therefore, tap weights are unnecessarily increased since the sections
where a space is to be provided are filled with material. Again, another problem is
that the increased number of recesses and projections on the tap makes mold production
difficult due to the fact that gas outlets cannot be located on the same plane.
OBJECT OF THE INVENTION
[0005] The object of the invention is to present a safety gas tap with dual outlets of smaller
size and weight for domestic cooking appliances.
[0006] Another object of the invention is to present a safety gas tap with dual outlets
whose body is produced as single piece, as well as being of smaller size and weight.
[0007] In a preferred embodiment of the invention, a space is provided between the first
gas outlet and the second gas outlet, which are located in the same direction.
[0008] In another preferred embodiment of the invention, the first gas outlet and the second
gas outlet are located in the same plane.
[0009] In another preferred embodiment of the invention, the safety valve is placed such
that the angle B will be between 40° and 60°.
[0010] The structural and the 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
[0011]
Figure 1 is an overall perspective view of the tap according to the invention,
Figure 2 is another perspective view of the tap according to the invention,
Figure 3 is a cross-sectional view of the tap according to the invention, when the
shaft thereof is in "0" reference position,
Figure 4 is a top view of the tap according to the invention,
Figure 5 is a perspective view showing the shaft of the tap according to the invention,
Figure 6 is a perspective view showing the male of the tap according to the invention,
Figure 7 is another perspective view showing the male of the tap according to the
invention,
Figure 8.a schematic view showing burning states in multiple burners rings, according
to different positions of the shaft of the tap according to the invention,
Figure 8.b is an angle-power value diagram,
Figure 8.c is a schematic view showing burning states that could be obtained by a
different male design,
Figure 8.d is a power diagram that could be obtained by the tap with a different male
design,
Figure 9 is a front view of the tap according to the invention,
Figure 10 is a cross-sectional view showing the tap shaft, when it is rotated 90°
in counterclockwise (-) direction,
Figure 11.a is a cross-sectional view showing the tap shaft, when it is rotated 190°
in counterclockwise (-) direction,
Figure 11.b is another cross-sectional view showing the tap shaft, when it is rotated
190° in counterclockwise (-) direction,
Figure 12 is another top view of the tap according to the invention,
Figure 13 is a cross-sectional view showing the tap shaft, when it is rotated 130°
in counterclockwise (-) direction,
Figure 14.a is a cross-sectional view showing the tap shaft, when it is rotated 240°
in counterclockwise (-) direction,
Figure 14.b is another cross-sectional view showing the tap shaft, when it is rotated
240° in counterclockwise (-) direction,
Figure 15 is another top view of the tap according to the invention.
REFERENCE NUMERALS
[0012]
- 1. Safety tap with two outlets
1.1. Body
1.2. Shaft
1.2.1. Shaft (1.2) nail
1.3. Lid
1.3.1. Lid (1.3) screws
1.4. Male
1.4.1. Upper gas passage holes on male (1.4)
1.4.2. Lower gas passage holes on male (1.4)
1.4.3. Male (1.4) channel
1.5. Safety valve
1.6. Gas inlet
1.7. First gas outlet
1.8. Second gas outlet
1.9. Adjustment screw
1.10. Burning state of multiple gas burners, when it is in "0" reference position
(with no burning process)
1.11. Burning state of multiple gas burners, when tap shaft is rotated 90° counterclockwise
(-) direction (the state when only the outer ring burns at maximum-State 1)
1.12. Burning state of multiple gas burners, when tap shaft is rotated 130° counterclockwise
(-) direction (the state when only the outer ring bums at minimum-State 2)
1.13. Burning state of multiple gas burners, when tap shaft is rotated 190° counterclockwise
(-) direction (the state when the inner ring and the outer ring burn at maximum-State
3)
1.14. Burning state of multiple gas burners, when tap shaft is rotated 240° counterclockwise
(-) direction (the state when the inner ring and the outer ring burn at minimum-State
4) 1.15. Metal balls
1.16. Cross channel opening into safety valve (1.5) from gas inlet (1.6)
1.17. Channel opening into male (1.4) from safety valve (1.5)
1.18. Space between first gas outlet (1.7) and second gas outlet (1.8)
1.19. Channel opening into adjustment screw (1.9)
1.20. "0" reference position of the tap with a different male design
1.21. The state when inner ring and outer ring of the tap with a different male design
burn at maximum
1.22. The state when the inner ring of the tap with a different male design burns
at maximum while the outer ring bums at minimum
1.23. The state when only the inner ring of the tap with a different male design bums
at maximum
1.24. The state when only the inner ring of the tap with a different male design bums
at minimum
DETAILED DESCRIPTION OF THE INVENTION
[0013] An overall perspective view of the safety cooktop gas tap (1) with two outlets developed
is given in Figures 1 and 2, while the cross-sectional view of the tap (1) when the
shaft is in "0" reference position is given in Figure 3 and top view of the tap (1)
in Figure 4. The working principle of the gas tap (1) is most generally as follows:
the gas in desired flow rate is directed to gas outlets (1.7, 1.8), by transferring
the rotation movement provided for tap shaft (1.2) to the male (1.4). As is seen in
figures, comprised in the tap (1) developed are a gas inlet (1.6) and two gas outlets
(1.7, 1.8); and in general terms, it consists of a body (1.1), a male (1.4) located
in the said body (1.1), a lid (1.3), a shaft (1.2), and a safety valve (1.5). The
lid (1.3) is mounted on the body (1.1) by means of screws (1.3.1). On the male (1.4)
are two upper gas passage holes (1.4.1) and two lower gas passage holes (1.4.2). Half
passage is provided by the said upper gas passage holes (1.4.1) while full passage
is provided by lower gas passage holes (1.4.2). Here, the invention obtained with
the male design shown in Figures 6 and 7 for illustrative purposes is described in
detail and the burning scenarios for the multiple burners acquired in this manner
are given in Figure 8.a. In Figure 8.b, on the other hand, angle-power diagram is
given. As seen in this diagram, power (Kw) values corresponding to the angle of the
shaft goes up and down. This, in turn, may lead to difficulties for housewives during
use. Therefore, the burning scenarios, seen in Figure 8.c, are obtained with the different
male design of the tap according to the invention. As seen in Figure, burning states
with respect to angles B1, B2, B3 and B4 of the tap shaft are given. Accordingly,
in state B1, the inner and outer rings burn at maximum, the obtained power value in
this state is Q8. In state B2, the inner ring burns at maximum while the outer ring
bums at minimum, the power value being Q7. In state B3, on the other hand, only the
inner ring burns at maximum, the power value being Q6. As for state B4 where the angle
is maximum; here, only the inner ring burns at maximum and Q5, which is the lowest
power value, is obtained. In this way, since angle and power values are inversely
proportional (power value decreases as the angle increases), an easier use for housewives
is obtained (see Figure 8.d).
[0014] Now referring to the figures attached, both the working principle and advantages
of the tap (1) will be explained in detail. By making the shaft (1.2) forward, the
nail (1.2.1) on the shaft (1.2) passes to the channel (1.4.3) of the male (1.4) in
the tap body (1.1). The rotation movement provided by rotating the shaft (1.2) in
the desired angle by the said nail (1.2.1) passing to the channel (1.4.3) of the male
is transferred to the male (1.4). Upper gas passage holes (1.4.1) and lower gas passage
holes (1.4.2) on the male (1.4) provide gas passage in the desired flow rate (See
Figures 6 and 7). The course of the gas in the designed tap (1) is explained in detail
for the positions where the shaft is rotated counterclockwise (-) direction in angles
A1, A2, A3 and A4, as seen in Figure 8a. These angle values, in respective order,
are 90°, 130°, 190°, and 240°. Moreover, the obtained power values in the said angle
values are Q1, Q2, Q3 and Q4, respectively. The said positions will be hereinafter
referred to as state 1 (1.11), state 2 (1.12), state 3 (1.13) and state 4 (1.14),
respectively.
[0015] As seen in Figure 8.a, when the shaft is in "0" reference position (1.10), no gas
passage through the tap takes place. In state 1 (1.11), the gas passing through the
cross channel (1.16) opening into safety valve from gas inlet (1.6) reaches to safety
valve (1.5), and then it passes through the channel (1.17) opening into the male and
is directed to the second gas outlet (1.8) through the gas passage hole (1.4.2) on
the male (1.4) (see Figure 10). The gas exiting through the second gas outlet (1.8)
is carried to multiple gas burners by means of burner gas pipes and maximum burning
of the outer ring is provided. As there is no gas passage into the inner ring, no
burning occurs in this section. In state 2 (1.12), with the rotation of the shaft,
one of the upper gas passage holes (1.4.1) provided on the male (1.4) is positioned
with respect to the channel (1.19) opening into the adjustment screw. The gas, having
passed through this channel (1.19), passes through the adjustment screws (1.9) and
is directed to the first gas outlet (1.7) (see Figure 13). In this state, the outer
ring of the gas burner bums at lower position while the inner ring does not burn.
The flow rate of the gas directed to the outlet can be adjusted as desired by means
of the adjustment screw (1.9). In state 3 (1.13), the gas, having passed through the
cross channel (1.6) opening into safety valve from gas inlet (1.16), reaches to safety
valve (1.5), follows the channel (1.17) opening into the male, passes through lower
gas passage holes (1.4.2) and upper gas passage holes (1.4.1), and then is directed
to first and second gas outlets (1.7, 1.8) (see Figures 11.a, 11.b). In the former
state, maximum burning of inner and outer rings of the multiple gas burners is obtained.
In state 4 (1.14), on the other hand, the male (1.4) is positioned with respect to
the channels (1.19) opening into both of the adjustment screws. In this state, with
the direction of the gas having passed through adjustment screw (1.9) to the first
and second outlets (1.7, 1.8), it is provided that the inner and outer rings of the
burner burn at lower (minimum) position (see Figures 14.a, 14.b). In Figure 8.a, for
the invention to be understood better, burning states in multiple gas burners in different
gas passages, depending on the rotation angles of the shaft (1.2).
[0016] A certain space (1.18) is provided between the centers of both gas outlets (1.7,
1.8) explained above. Again, a space is provided between safety valve (1.5) and gas
outlet (1.8). This space is formed by positioning the safety valve (1.5) such that
the angle B will be between 40° and 60°. Thus, a lighter product is obtained by reducing
the weight of the tap (1). Another characteristic of the invention is that the first
gas outlet (1.7) and the second gas outlet (1.8) in the tap (1) are positioned on
the same plane. Thanks to this positioning, when the tap (1) is viewed from front
as in Figure 9, the distance h from the very lower part to the upper surface of the
lid (1.3) is made smaller compared to the state of the art. This, in turn, provides
that the taps arranged in the cooker/oven side by side occupy less space and smaller
cookers/ovens are produced. As known, as the recesses and projections on the tap (1)
are increased, the mold production gets more difficult. Therefore, mold production
is made easier by positioning the first gas outlet (1.7) and second gas outlet (1.8)
on the same plane in the tap (1) developed. Moreover, the production of the tap (1)
developed is quite easy and its body (1.1) is produced in single piece, as well as
being of lighter weight and smaller size. Thus, production time is shortened, without
any need for an additional process. Again, so as to provide sealing in the channels
where no gas outlet is desired in the tap (1) body (1.1), it is closed using preferably
two metal balls (1.15). Furthermore, different metals may also be used optionally
to close these channel outlets.
[0017] The invention is suitable for use in any cooker and oven, i.e. domestic cooking appliances.
[0018] 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
obvious that any person skilled in the art can produce the novelty provided by 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.