EP4634578A1 - Gas cooking hob - Google Patents

Gas cooking hob

Info

Publication number
EP4634578A1
EP4634578A1 EP23822331.7A EP23822331A EP4634578A1 EP 4634578 A1 EP4634578 A1 EP 4634578A1 EP 23822331 A EP23822331 A EP 23822331A EP 4634578 A1 EP4634578 A1 EP 4634578A1
Authority
EP
European Patent Office
Prior art keywords
housing
gas
injector holder
cooking appliance
gas cooking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23822331.7A
Other languages
German (de)
French (fr)
Inventor
Eva Gonzalez Moujir
Santiago Lopez Ranero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP4634578A1 publication Critical patent/EP4634578A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges

Definitions

  • the present invention relates to a gas cooking appliance with a housing and with a covering plate arranged spaced apart from the housing, an appliance internal space being thereby defined, in which a gas injector holder is mounted, which is fixed to the covering plate at a top of injector holder, and wherein the gas cooking appliance has a positioning and fixing device with at least a fixing screw screwed to a thread arranged in the bottom of injector holder to fix the gas injector holder in a housing orifice and at least an engaging element fitting into a receiving element of the housing to position the gas injector holder relative to the housing.
  • WO 2016071821 A1 describes a gas cooking appliance with a cooking hob housing, with a covering plate arranged spaced apart from the cooking hob housing, with a gas injector holder fixed to the covering plate, and with a positioning and fixing device to position the gas injector holder relative to an opening provided in the covering plate and to fix the gas injector holder to the cooking hob housing, wherein the covering plate is fixed to the cooking hob housing by means of the top of injector holder and the positioning and fixing device.
  • the object of the present invention is to provide an improved gas cooking appliance in relation to its repairability and assembly.
  • a gas cooking appliance with a housing and with a covering plate arranged spaced apart from the housing, an appliance internal space being thereby defined, in which a gas injector holder is mounted, which is fixed to the covering plate at a top of injector holder, and wherein the gas cooking_appliance has a positioning and fixing device with at least a fixing screw screwed to a thread arranged in the bottom of injector holder to fix the gas injector holder in a housing orifice and at least an engaging element fitting into a receiving element of the housing to position the gas injector holder relative to the housing.
  • the fixing screw is fixed to the housing with a clip system, which is not provided to be demounted by traction but can be demounted when the fixing screw is unscrewed.
  • the injector holder is connected to the housing by means of the fixing screw, which is fixed to the housing with a clip system not provided to be demounted by traction, but the injector holder can be demounted when the fixing screw is unscrewed.
  • a ‘gas cooking appliance’ is understood to be a gas cooking hob provided to be fitted into a receiving opening in a kitchen worktop or a stove with an oven and a gas cooking hob integrated into a sole appliance.
  • a ‘covering plate’ of the gas cooking appliance is understood to be the top plate of the appliance on which cooking is to take place and having a top surface external to the appliance on which gas burners and cooking vessel supports are usually arranged.
  • the appliance can have one or several gas burners.
  • the covering plate has openings through which the burners are connected with their respective injector holders, through which gas led through the gas collecting pipes flows in and is mixed with the air required for the combustion.
  • the covering plate is joined at least over a part of its perimeter with at least a part of the perimeter of the housing, thereby defining an internal space in which a part of the functional elements of the appliance such as gas collecting pipes, gas taps and injector holders are arranged.
  • the injector holders are fixed at their top to the covering plate and at their bottom to the housing and, to this, the injector holders have at their bottom a positioning and fixing device by means of which two functions can be simultaneously performed.
  • the gas injector holder can be positioned relative to the housing and firmly fixed to the same and, in addition to this, the injector holder can be likewise positioned with respect to the covering plate, thereby correctly facing the opening.
  • the positioning and fixing device has, in the housing, an orifice and a receiving element and, in the injector holder, it has a thread and an engaging element as well as a threaded screw screwed in the thread with its screw head pressed into the orifice and the engaging element connected with the receiving element, thereby defining a fixed position of the injector holder relative to the housing.
  • the fixation of the injector holder to the housing is achieved by press fitting the screw into the orifice in such a manner that the screw remains locked in the same and cannot be pressed out or extracted by traction without damages and/or deformation in the housing or in the screw being caused.
  • the screw can be unscrewed by accessing it from outside the appliance to easily demount the injector holder.
  • the fixing screw has a screw axis, which is screwed in a thread of the bottom of injector holder, a screw neck and a screw head rounded to facilitate the insertion into the housing orifice having a bigger diameter than the screw neck.
  • a ‘rounded screw head’ is understood to be a head that can be from spherical to lenticular in such a manner that insertion into the orifice is facilitated.
  • the orifice can have a perimeter with a bigger diameter than the biggest diameter of the screw head and at least three elastic lugs extend from the perimeter and into the orifice, whose ends delimit an orifice diameter smaller than the biggest diameter of the screw head. Due to this, lugs can bend outwards due to the pushing of the screw head and return to their original position when the biggest diameter of the head has passed.
  • the screw can be screwed into the thread in such a manner that the head protrudes from the bottom of injector holder. The insertion of the same into the orifice is thereby facilitated. Furthermore, the ends of the lugs surround the screw neck in such a manner that the injector holder is locked in the housing. And the lugs are preferably oriented towards outside the appliance internal space in such a manner that they prevent the injector holder from moving backwards unless a force much higher than the assembly force is exerted and the housing gets damaged. Therefore, its demounting consists in unscrewing the screw. This facilitates the repairability of the appliance by the technical service, since it can be mounted again without being damaged.
  • the receiving element of the housing is a groove or through- hole and the engaging element is a protuberance of the bottom of injector holder, which is inserted into the groove or the through-hole.
  • the positioning and fixing device has at least a fixing screw and at least two engaging elements, so that it stays positioned and fixed without any problems.
  • the gas injector holder is made in one piece of cast aluminium, so that the engaging elements and the position of the thread, which will be processed in a later production step, can be obtained in one piece.
  • the housing has a connecting part comprising the at least one orifice and the at least one receiving element and the connecting part is inserted into the appliance internal space in such a manner that neither the screw head nor the end of the engaging element protrudes from a housing external surface.
  • the housing made of a sheet has a shaping forming the connecting part that is inserted into the appliance internal space and, in this way, with the injector holder being installed, neither the screw nor the engaging element protrudes beyond the housing external surface.
  • the housing external surface is the lowest surface of the appliance and, if it needs to rest on another surface during the installation or uninstallation of the same, neither the screw head nor the engaging element will contact said surface. This is easily realisable when the housing is made of a metal sheet.
  • the invention can be applied in a gas cooking appliance with all types of a covering plate, but it is particularly interesting when the covering plate is a glass, ceramic or glassceramic plate, since the correct positioning of the injector holder favours the reduction of stresses in the connection between the top of injector holder and the covering plate and, therefore, the risk of breakage. And, preferably, the top of injector holder is fixed, in particular screwed, to the covering plate.
  • Fig. 1 shows a perspective view of a gas cooking appliance
  • Fig. 2 shows a perspective and exploded view of the gas cooking appliance from figure 1 ;
  • Fig. 3 shows a perspective schematic view of an injector holder arranged on the housing
  • Fig. 4 shows a schematic side section of the injector holder fixed to the housing according to figure 3;
  • Fig. 5 shows a perspective schematic view from the bottom of injector holder
  • Fig. 6 shows a perspective schematic view of the connecting area of the housing with the orifices and receiving elements of the positioning and fixing device from the appliance internal space of the gas cooking appliance of the invention
  • Fig. 7 shows a perspective schematic view of the connecting area of the housing with the orifices and receiving elements of the positioning and fixing device from outside the gas cooking appliance;
  • Fig.8 shows a perspective schematic view of the positioning and fixing device from outside the gas cooking appliance.
  • Figure 1 shows a gas cooking appliance 1 in the form of a gas cooking hob provided to be fitted into a receiving opening in a kitchen worktop.
  • the gas cooking hob 1 can be a part of a household appliance and comprises a cooking hob housing 30 and a covering plate 20 arranged spaced apart from the cooking hob housing 30.
  • the covering plate is also called top plate.
  • the covering plate 20 is a metal, glass, ceramic or glass-ceramic plate.
  • the gas cooking hob 1 has a covering plate 20 on which three gas burners 2 and two cooking vessel supports 3 are mounted.
  • the covering plate 20 is connected at its bottom with the housing 30, thereby defining the appliance internal space 10, in which a part of the functional elements of the appliance such as the gas collecting pipes, the gas taps and the injector holders are arranged.
  • the gas knobs 5 are arranged on the covering plate 20, so that the user can control the gas taps arranged in the appliance internal space 10 under the covering plate 20.
  • FIG 2 shows a perspective of the same gas cooking hob 1 from figure 1 in a schematic exploded representation in which the external components are separate and the three gas burners 2 and both cooking vessel supports 3 are shown spaced away from the covering plate 20.
  • the covering plate 20 has openings 21 to which the gas injector holders 40 are joined at the top of injector holder 41 from the appliance internal space 10.
  • Inside each gas injector holder 40 there is at least one gas injector 6 into which gas flows being channelled by the gas collecting pipes and in which it is mixed with the air required for the combustion to take place.
  • This gas-air mixture flows from the gas burners 2 placed on their respective gas injector holders 40 in an operating position like the one shown in figure 1 and the cooking vessel supports 3 are arranged on the gas burners 2 and rest on the covering plate 20.
  • Figure 3 shows the housing 30 of the gas cooking appliance 1 and a part of the appliance internal space 10 in which a gas injector holder 40 is arranged.
  • the gas injector holder 40 is connected at its bottom of injector holder 42 to the housing 30 in the connecting part 35 of the housing 30.
  • the gas collecting pipe 4 is also shown, which is connected to the gas injector holder 40 through which gas is fed up to the injectors 6 and from these into the gas injector holder 40.
  • the gas injector holder 40 has a top of injector holder 41 with which it is connected to the opening 21 at the inner face of the covering plate 20.
  • FIG 4 shows a side section of a detail of the gas cooking appliance 1 of the invention in the area of the gas injector holder 40.
  • the positioning and fixing device 50 has a thread 56 made in the bottom of injector holder 42 on which a screw axis 53 of the fixing screw 51 is screwed.
  • the screw head 55 extends through the housing 30 via the orifice 31 having lugs 32 locked on the screw neck 54, which block the displacement of the gas injector holder 40 towards the appliance internal space 10.
  • the positioning and fixing device 50 also has on the bottom of injector holder 42 two engaging elements 52 fitted into corresponding receiving elements 33 of the housing 30.
  • the movement of the gas injector holder 40 is thereby limited inside the appliance internal space 10.
  • Inside the gas injector holder 40 there is an injector 6 into which gas flows through the gas collecting pipe 4.
  • the connecting part 35 of the housing 30 is inserted into the appliance internal space 10 in such a manner that neither the screw head 55 nor the receiving elements 33 protrudes from the plane formed by the housing external surface 34.
  • Figure 5 shows a perspective view of the bottom of the gas injector holder 40 with a part of the positioning and fixing device 50 of the gas cooking appliance 1 of the invention. At the bottom of injector holder 42 there are three engaging elements 52 and three threads
  • Figure 6 shows the housing 30 from figure 3 without the gas injector holder 40 being mounted. Therefore, in the connecting part 35 of the housing 30, the receiving elements 33 and the orifice 31 with its lugs 32 slightly bent towards outside the housing 30 can be seen.
  • Figure 7 shows in detail the connecting part 35 of the housing 30 from figure 6 but in a view from outside the gas cooking appliance 1 in which the receiving elements 33 and the orifice 31 with its lugs 32 slightly bent towards outside the housing 30 can be seen.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

The invention relates to a gas cooking appliance (1) with a housing (30) and with a covering plate (20) arranged spaced apart from the housing (30), an appliance internal space (21) being thereby defined, in which a gas injector holder (40) is mounted, which is fixed to the covering plate (20) at a top of injector holder (41), and which gas cooking appliance (1) has a positioning and fixing device (50) arranged at a bottom of injector holder (42) with at least a fixing screw (51) screwed to the bottom of injector holder (42) to fix the gas injector holder (40) in a housing orifice (31) and at least an engaging element (52) fitting into a receiving element (33) of the housing (30) to position the gas injector holder (40) relative to the housing (30). The fixing screw (51) is fixed to the housing (30) with a clip system (31), which is not provided to be demounted by traction but can be demounted when the fixing screw (51) is unscrewed.

Description

Gas cooking hob
The present invention relates to a gas cooking appliance with a housing and with a covering plate arranged spaced apart from the housing, an appliance internal space being thereby defined, in which a gas injector holder is mounted, which is fixed to the covering plate at a top of injector holder, and wherein the gas cooking appliance has a positioning and fixing device with at least a fixing screw screwed to a thread arranged in the bottom of injector holder to fix the gas injector holder in a housing orifice and at least an engaging element fitting into a receiving element of the housing to position the gas injector holder relative to the housing.
WO 2016071821 A1 describes a gas cooking appliance with a cooking hob housing, with a covering plate arranged spaced apart from the cooking hob housing, with a gas injector holder fixed to the covering plate, and with a positioning and fixing device to position the gas injector holder relative to an opening provided in the covering plate and to fix the gas injector holder to the cooking hob housing, wherein the covering plate is fixed to the cooking hob housing by means of the top of injector holder and the positioning and fixing device.
In view of this background, the object of the present invention is to provide an improved gas cooking appliance in relation to its repairability and assembly.
Therefore, a gas cooking appliance is proposed with a housing and with a covering plate arranged spaced apart from the housing, an appliance internal space being thereby defined, in which a gas injector holder is mounted, which is fixed to the covering plate at a top of injector holder, and wherein the gas cooking_appliance has a positioning and fixing device with at least a fixing screw screwed to a thread arranged in the bottom of injector holder to fix the gas injector holder in a housing orifice and at least an engaging element fitting into a receiving element of the housing to position the gas injector holder relative to the housing. The fixing screw is fixed to the housing with a clip system, which is not provided to be demounted by traction but can be demounted when the fixing screw is unscrewed. This means that the injector holder is connected to the housing by means of the fixing screw, which is fixed to the housing with a clip system not provided to be demounted by traction, but the injector holder can be demounted when the fixing screw is unscrewed.
A ‘gas cooking appliance’ is understood to be a gas cooking hob provided to be fitted into a receiving opening in a kitchen worktop or a stove with an oven and a gas cooking hob integrated into a sole appliance. A ‘covering plate’ of the gas cooking appliance is understood to be the top plate of the appliance on which cooking is to take place and having a top surface external to the appliance on which gas burners and cooking vessel supports are usually arranged. The appliance can have one or several gas burners. The covering plate has openings through which the burners are connected with their respective injector holders, through which gas led through the gas collecting pipes flows in and is mixed with the air required for the combustion. The covering plate is joined at least over a part of its perimeter with at least a part of the perimeter of the housing, thereby defining an internal space in which a part of the functional elements of the appliance such as gas collecting pipes, gas taps and injector holders are arranged. The injector holders are fixed at their top to the covering plate and at their bottom to the housing and, to this, the injector holders have at their bottom a positioning and fixing device by means of which two functions can be simultaneously performed. On the one hand, the gas injector holder can be positioned relative to the housing and firmly fixed to the same and, in addition to this, the injector holder can be likewise positioned with respect to the covering plate, thereby correctly facing the opening. The positioning and fixing device has, in the housing, an orifice and a receiving element and, in the injector holder, it has a thread and an engaging element as well as a threaded screw screwed in the thread with its screw head pressed into the orifice and the engaging element connected with the receiving element, thereby defining a fixed position of the injector holder relative to the housing. The fixation of the injector holder to the housing is achieved by press fitting the screw into the orifice in such a manner that the screw remains locked in the same and cannot be pressed out or extracted by traction without damages and/or deformation in the housing or in the screw being caused. The screw can be unscrewed by accessing it from outside the appliance to easily demount the injector holder. Thus, a fixed or unmovable connection of the injector holder with the housing is achieved in a preferred manner. In this way, additional fixing elements to fix them can be dispensed with. In this manner, costs and complexity of the assembly and disassembly when the gas cooking appliance is manufactured or repaired are reduced and a quick assembly with no tools is possible.
In a preferred embodiment, the fixing screw has a screw axis, which is screwed in a thread of the bottom of injector holder, a screw neck and a screw head rounded to facilitate the insertion into the housing orifice having a bigger diameter than the screw neck. A ‘rounded screw head’ is understood to be a head that can be from spherical to lenticular in such a manner that insertion into the orifice is facilitated.
Furthermore, the orifice can have a perimeter with a bigger diameter than the biggest diameter of the screw head and at least three elastic lugs extend from the perimeter and into the orifice, whose ends delimit an orifice diameter smaller than the biggest diameter of the screw head. Due to this, lugs can bend outwards due to the pushing of the screw head and return to their original position when the biggest diameter of the head has passed.
The screw can be screwed into the thread in such a manner that the head protrudes from the bottom of injector holder. The insertion of the same into the orifice is thereby facilitated. Furthermore, the ends of the lugs surround the screw neck in such a manner that the injector holder is locked in the housing. And the lugs are preferably oriented towards outside the appliance internal space in such a manner that they prevent the injector holder from moving backwards unless a force much higher than the assembly force is exerted and the housing gets damaged. Therefore, its demounting consists in unscrewing the screw. This facilitates the repairability of the appliance by the technical service, since it can be mounted again without being damaged.
In a preferred embodiment, the receiving element of the housing is a groove or through- hole and the engaging element is a protuberance of the bottom of injector holder, which is inserted into the groove or the through-hole. This is a simple manner to provide the positioning and fixing device with a simplified and low-cost positioner of the injector holder relative to the housing.
Furthermore, if one of the engaging elements protrudes from the gas injector holder to a greater extent than the screw head in the direction towards the housing, during the assembly of the injector holder moving towards the housing, the first thing the assembler will have to do is to position the engaging element into the receiving element. Subsequently, he/she will insert the screw head into the orifice, thereby leaving the injector holder properly positioned and fixed in the housing. Depending on the size of the injector holder, it might be advantageous that the positioning and fixing device has at least a fixing screw and at least two engaging elements, so that it stays positioned and fixed without any problems.
It is also provided that the gas injector holder is made in one piece of cast aluminium, so that the engaging elements and the position of the thread, which will be processed in a later production step, can be obtained in one piece.
Preferably, the housing has a connecting part comprising the at least one orifice and the at least one receiving element and the connecting part is inserted into the appliance internal space in such a manner that neither the screw head nor the end of the engaging element protrudes from a housing external surface. Thus, the housing made of a sheet has a shaping forming the connecting part that is inserted into the appliance internal space and, in this way, with the injector holder being installed, neither the screw nor the engaging element protrudes beyond the housing external surface. The housing external surface is the lowest surface of the appliance and, if it needs to rest on another surface during the installation or uninstallation of the same, neither the screw head nor the engaging element will contact said surface. This is easily realisable when the housing is made of a metal sheet.
The invention can be applied in a gas cooking appliance with all types of a covering plate, but it is particularly interesting when the covering plate is a glass, ceramic or glassceramic plate, since the correct positioning of the injector holder favours the reduction of stresses in the connection between the top of injector holder and the covering plate and, therefore, the risk of breakage. And, preferably, the top of injector holder is fixed, in particular screwed, to the covering plate.
The gas cooking hob is explained subsequently more in detail by means of preferred embodiments, making reference to the attached figures.
Fig. 1 shows a perspective view of a gas cooking appliance;
Fig. 2 shows a perspective and exploded view of the gas cooking appliance from figure 1 ;
Fig. 3 shows a perspective schematic view of an injector holder arranged on the housing;
Fig. 4 shows a schematic side section of the injector holder fixed to the housing according to figure 3;
Fig. 5 shows a perspective schematic view from the bottom of injector holder;
Fig. 6 shows a perspective schematic view of the connecting area of the housing with the orifices and receiving elements of the positioning and fixing device from the appliance internal space of the gas cooking appliance of the invention;
Fig. 7 shows a perspective schematic view of the connecting area of the housing with the orifices and receiving elements of the positioning and fixing device from outside the gas cooking appliance; and
Fig.8 shows a perspective schematic view of the positioning and fixing device from outside the gas cooking appliance.
In the figures, the same elements or having the same function are provided with the same reference numerals, unless otherwise indicated.
Figure 1 shows a gas cooking appliance 1 in the form of a gas cooking hob provided to be fitted into a receiving opening in a kitchen worktop. The gas cooking hob 1 can be a part of a household appliance and comprises a cooking hob housing 30 and a covering plate 20 arranged spaced apart from the cooking hob housing 30. The covering plate is also called top plate. The covering plate 20 is a metal, glass, ceramic or glass-ceramic plate.
In the appliance top, the gas cooking hob 1 has a covering plate 20 on which three gas burners 2 and two cooking vessel supports 3 are mounted. The covering plate 20 is connected at its bottom with the housing 30, thereby defining the appliance internal space 10, in which a part of the functional elements of the appliance such as the gas collecting pipes, the gas taps and the injector holders are arranged. Also the gas knobs 5 are arranged on the covering plate 20, so that the user can control the gas taps arranged in the appliance internal space 10 under the covering plate 20.
Figure 2 shows a perspective of the same gas cooking hob 1 from figure 1 in a schematic exploded representation in which the external components are separate and the three gas burners 2 and both cooking vessel supports 3 are shown spaced away from the covering plate 20. The covering plate 20 has openings 21 to which the gas injector holders 40 are joined at the top of injector holder 41 from the appliance internal space 10. Inside each gas injector holder 40 there is at least one gas injector 6 into which gas flows being channelled by the gas collecting pipes and in which it is mixed with the air required for the combustion to take place. This gas-air mixture flows from the gas burners 2 placed on their respective gas injector holders 40 in an operating position like the one shown in figure 1 and the cooking vessel supports 3 are arranged on the gas burners 2 and rest on the covering plate 20.
Figure 3 shows the housing 30 of the gas cooking appliance 1 and a part of the appliance internal space 10 in which a gas injector holder 40 is arranged. The gas injector holder 40 is connected at its bottom of injector holder 42 to the housing 30 in the connecting part 35 of the housing 30. The gas collecting pipe 4 is also shown, which is connected to the gas injector holder 40 through which gas is fed up to the injectors 6 and from these into the gas injector holder 40. The gas injector holder 40 has a top of injector holder 41 with which it is connected to the opening 21 at the inner face of the covering plate 20.
Figure 4 shows a side section of a detail of the gas cooking appliance 1 of the invention in the area of the gas injector holder 40. In the section, it is shown how the gas injector holder 40 is fixed inside the appliance internal space 10 to the covering plate 20 at the top of injector holder 41 through the opening 21 and to the housing 30 at the bottom of injector holder 42 in its connecting part 35 by means of the positioning and fixing device 50. The positioning and fixing device 50 has a thread 56 made in the bottom of injector holder 42 on which a screw axis 53 of the fixing screw 51 is screwed. The screw head 55 extends through the housing 30 via the orifice 31 having lugs 32 locked on the screw neck 54, which block the displacement of the gas injector holder 40 towards the appliance internal space 10. The positioning and fixing device 50 also has on the bottom of injector holder 42 two engaging elements 52 fitted into corresponding receiving elements 33 of the housing 30. The movement of the gas injector holder 40 is thereby limited inside the appliance internal space 10. Inside the gas injector holder 40 there is an injector 6 into which gas flows through the gas collecting pipe 4. The connecting part 35 of the housing 30 is inserted into the appliance internal space 10 in such a manner that neither the screw head 55 nor the receiving elements 33 protrudes from the plane formed by the housing external surface 34.
Figure 5 shows a perspective view of the bottom of the gas injector holder 40 with a part of the positioning and fixing device 50 of the gas cooking appliance 1 of the invention. At the bottom of injector holder 42 there are three engaging elements 52 and three threads
56 into one of which a fixing screw 51 is screwed and from which its screw head 55 protrudes.
Figure 6 shows the housing 30 from figure 3 without the gas injector holder 40 being mounted. Therefore, in the connecting part 35 of the housing 30, the receiving elements 33 and the orifice 31 with its lugs 32 slightly bent towards outside the housing 30 can be seen.
Figure 7 shows in detail the connecting part 35 of the housing 30 from figure 6 but in a view from outside the gas cooking appliance 1 in which the receiving elements 33 and the orifice 31 with its lugs 32 slightly bent towards outside the housing 30 can be seen.
Finally, figure 8 shows another view of the connecting part 35 of the housing 30 from figure 7, in which the screw head 55 protrudes from the orifice 31 and the lugs 32 surround the screw neck 54, thereby preventing it from moving backwards through the orifice 31. The engaging elements 52 can be also seen being inserted into their corresponding receiving elements 33. In the shown embodiments, the receiving elements 33 are made as through-holes, but they could be shaped just by stamping on the housing 30, and the engaging elements are inserted, or the receiving elements could be stamped on the housing 30 and inserted into the appliance internal space 10 and connected into engaging elements made as notches in the bottom of injector holder 42. Reference numerals
1 gas cooking appliance
2 gas burner
3 cooking vessel support
4 gas collecting pipe
5 gas knob
6 injector
10 appliance internal space
20 covering plate
21 opening
30 housing
31 orifice
32 lugs
33 receiving element
34 housing external surface
35 connecting part
40 gas injector holder
41 top of injector holder
42 bottom of injector holder
50 positioning and fixing device
51 fixing screw
52 engaging element
53 screw axis
54 screw neck
55 screw head
56 thread

Claims

PATENT CLAIMS A gas cooking appliance (1) with a housing (30) and with a covering plate (20) arranged spaced apart from the housing (30), an appliance internal space (21) being thereby defined, in which a gas injector holder (40) is mounted, which is fixed to the covering plate (20) at a top of injector holder (41), and which gas cooking appliance (1) has a positioning and fixing device (50) arranged at a bottom of injector holder (42) with at least a fixing screw (51) screwed to the bottom of injector holder (42) to fix the gas injector holder (40) in a housing orifice (31) and at least an engaging element (52) fitting into a receiving element (33) of the housing (30) to position the gas injector holder (40) relative to the housing
(30), characterised in that the fixing screw (51) is fixed to the housing (30) with a clip system (31), which is not provided to be demounted by traction but can be demounted when the fixing screw (51) is unscrewed. The gas cooking appliance according to claim 1 , characterised in that the fixing screw (51) has a screw axis (53), which is screwed in a thread (56) of the bottom of injector holder (42), a screw neck (54) and a screw head (55) rounded to facilitate the insertion into the orifice (31) of the housing (30) having a bigger diameter than the screw neck (54). The gas cooking appliance according to claim 2, characterised in that the orifice
(31 ) has a perimeter with a bigger diameter than the biggest diameter of the screw head (55) and in that at least three elastic lugs (32) extend from the perimeter and into the orifice (31), whose ends delimit an orifice diameter smaller than the biggest diameter of the screw head (55). The gas cooking appliance according to claim 3, characterised in that the orifice (31) has at least five lugs (32) and the ends of the lugs (32) surround the screw neck (54). The gas cooking appliance according to any of claims 3 or 4, characterised in that the lugs (32) are oriented towards outside the appliance internal space (10). The gas cooking appliance according to any of the preceding claims, characterised in that the receiving element (33) of the housing (30) is a groove or through-hole and the engaging element (52) is a protuberance of the bottom of injector holder (42), which is inserted into the groove or the through-hole.
7. The gas cooking appliance according to any of the preceding claims, characterised in that at least one of the engaging elements (52) protrude from the gas injector holder (40) to a greater extent than the screw head (55) in the direction towards the housing (30).
8. The gas cooking appliance according to any of the preceding claims, characterised in that the positioning and fixing device (50) has a fixing screw (51) and at least two engaging elements (52).
9. The gas cooking appliance according to any of the preceding claims, characterised in that the gas injector holder (40) is made in one piece of cast aluminium.
10. The gas cooking appliance according to any of the preceding claims, characterised in that the housing (30) has a connecting part (35) comprising the at least one orifice (31) and the at least one receiving element (33) and in that the connecting part (35) is inserted into the appliance internal space (21) in such a manner that neither the screw head (55) nor the end of the engaging element (52) protrudes from a housing external surface (34).
11. The gas cooking appliance according to any of the preceding claims, characterised in that the housing (30) is made of a metal sheet.
12. The gas cooking appliance according to any of the preceding claims, characterised in that the covering plate (20) is a glass, ceramic or glass-ceramic plate.
EP23822331.7A 2022-12-16 2023-12-11 Gas cooking hob Pending EP4634578A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22383228 2022-12-16
PCT/EP2023/085191 WO2024126405A1 (en) 2022-12-16 2023-12-11 Gas cooking hob

Publications (1)

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EP4634578A1 true EP4634578A1 (en) 2025-10-22

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ID=84538033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23822331.7A Pending EP4634578A1 (en) 2022-12-16 2023-12-11 Gas cooking hob

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EP (1) EP4634578A1 (en)
WO (1) WO2024126405A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2618881B2 (en) * 1986-02-13 1989-12-15 Madec Mater France IMPROVED BURNER FOR GAS FUELS WITH INCORPORATED IGNITION AND SAFETY SYSTEMS
US9784454B2 (en) * 2013-03-14 2017-10-10 Whirlpool Corporation Cooktop burner mounting system
ES2569222B1 (en) 2014-11-06 2017-02-15 Bsh Electrodomésticos España, S.A. Gas cooking countertop
US10697641B2 (en) * 2016-12-19 2020-06-30 Whirlpool Corporation Orifice holder mounting system for gas cooktop
WO2022135861A1 (en) * 2020-12-22 2022-06-30 BSH Hausgeräte GmbH Gas cooking appliance

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