EP2615371A2

EP2615371A2 - A Safety Cooktop Gas Tap With Dual Outlets

Info

Publication number: EP2615371A2
Application number: EP12175849.4A
Authority: EP
Inventors: Gokhan Turhan; Mehmet Demirezen; Isa Gun
Original assignee: Turas Gaz Armatuerleri Sanayi ve Ticaret AS
Current assignee: Turas Gaz Armatuerleri Sanayi ve Ticaret AS
Priority date: 2012-01-16
Filing date: 2012-07-11
Publication date: 2013-07-17
Anticipated expiration: 2032-07-11
Also published as: EP2615371B1; EP2615371A3; TR201200495A2

Abstract

The invention discloses a safety cooktop gas tap (1) with two outlets of lighter weight and smaller size, suitable for use in such domestic cooking appliances as cookers and ovens. The said gas tap (1), in most general terms, consists of a gas inlet (1.6) and two gas outlets (1.7, 1.8), a single-piece body (1.1), a male (1.4) positioned in the said body (1.1), a lid (1.3), a shaft (1.2) and a safety valve (1.5); wherein the said safety valve (1.5) is angularly positioned such that the angle B will be between 40° and 60°; and wherein a space (1.18) is provided between the first gas outlet (1.7) and the second gas outlet (1.8), which are located in the same plane.

Description

TECHNICAL FIELD

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

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.
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.
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

The object of the invention is to present a safety gas tap with dual outlets of smaller size and weight for domestic cooking appliances.
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.
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.
In another preferred embodiment of the invention, the first gas outlet and the second gas outlet are located in the same plane.
In another preferred embodiment of the invention, the safety valve is placed such that the angle B will be between 40° and 60°.
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

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

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

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).
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.
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).
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.
The invention is suitable for use in any cooker and oven, i.e. domestic cooking appliances.
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.

Claims

The invention is a safety cooktop gas tap (1) with two outlets, used in such domestic cooking appliances as cookers or ovens, composed of a gas inlet (1.6), two gas outlets (1.7, 1.8), a single-piece 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); characterized in that the said safety valve (1.5) is angularly positioned such that the angle B will be between 40° and 60°.
A safety cooktop gas tap (1) with two outlets according to Claim 1; characterized in that no space (1.18) is provided between the first gas outlet (1.7) and the second gas outlet (1.8), which are in the same direction.
A safety cooktop gas tap (1) with two outlets according to Claim 1; characterized in that the said two gas outlets (1.7, 1.8) are positioned in the same plane.