WO2022060308A1

WO2022060308A1 - A hob with a control device mounting bracket

Info

Publication number: WO2022060308A1
Application number: PCT/TR2020/050855
Authority: WO
Inventors: Nafiz CELIK; Burhanettin TURAN; Tuncay CIHAN
Original assignee: Femas Metal San. Ve Tic. A.S.
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2022-03-24

Abstract

The invention relates to a hob comprising a casing (10) having a base plate (18); an upper plate (60) confining the casing (10) so as to define an inner chamber (3); an electrical heating element (2) disposed on the upper plate (60) defining a cooking zone, and a control device (30) with an adjustment shaft (34) connected to the heating element (2) in a signal-transmitting manner in such a way that adjusting the power setting to a predetermined level and is aligned on a front wall (32) with a through hole (64) of the upper plate (60). The hob, further comprising a mounting bracket (50) having a support section (52) to which the control device (30) is attached from the front wall (32) facing the upper plate (60) and an elevation section (56) protruding from the support section (52) towards the base plate (18).

Description

A HOB WITH A CONTROL DEVICE MOUNTING BRACKET

TECHNICAL FIELD

The invention relates to hob, particularly hob with an electric cooking plate controlled by a control device connected to a rotary knob.

STATE OF THE ART

Gas, electric or induction heating units are defining cooking areas on the casing of an hob. Electric and induction cooking units are controlled by a power control device and gas cooking units are controlled by a gas valve. The control device or a rod of a gas tap is extending from the corresponding openings in the upper plate and engages to the rotary knob. The power required in cooking is adjusted to a predetermined value by the rotation of the adjustment knob by the user. The cooking units are mounted on the top plate and the control devices are mounted on the metal base of the base plate together with the other related elements are mounted and hidden under the upper plate.

On hobs with both gas and electric cooking units, the gas valves are connected to a plate located on the front of the base plate of the hob, on which there are sequential mounting extensions. The control device controlling the electric cooking unit is attached to the upper plate with separate fastening elements. In this case, it is necessary to provide holes for mounting in the upper plate.

BRIEF DESCRIPTION OF THE INVENTION

The object of the invention is to secure the control devices of the cooking unit to the casing in such a way that it does not bend during rotation in a hob with an electric cooking unit.

In order to achieve the aforementioned object, the invention relates to a hob comprising a casing having a base plate; an upper plate confining the casing so as to define an inner chamber; an electrical heating element disposed on the upper plate defining a cooking zone, and a control device with an adjustment shaft connected to the heating element in a signaltransmitting manner in such a way that adjusting the power setting to a predetermined level and is aligned on a front wall with a through hole of the upper plate. The hob further comprising a mounting bracket having a support section to which the control device is attached from the front wall facing the upper plate and an elevation section protruding from the support section towards the base plate. The mounting bracket retains the control device from the front wall and raises it from the base plate in line with the through hole in the upper plate. The momentum is reduced by the forces to be applied to the adjustment shaft are resisted on the front wall close to the lower portion of the adjustment shaft during use and the control device is fixed in the inner chamber firmly.

A preferred embodiment of the invention comprises a groove provided in the middle of the support section and through which a lower portion of the adjustment shaft is received. The groove allows the adjustment shaft to be mounted on the mounting bracket, while restricting its movement. In an alternative embodiment, a hole can be provided in the support section instead of a groove, and the adjustment shaft can be inserted through this hole. The groove facilitates the adaptation of the control device to the support section.

In a preferred embodiment of the invention, the support section and the elevation section has an integrated L-like form. In this way, the mounting bracket is easily adapted by leaning on one side of the control device, and the mounting bracket is given a strength against the forces applied during the rotation of the adjustment shaft, preventing it from bending.

A preferred embodiment of the invention comprises a bottom section extending from the lower end of the elevation section towards the rear of the control device. The bottom section increases the structural strength of the mounting bracket against vibration. It also forms a barrier from below for the control device.

A preferred embodiment of the invention comprises an upper hole provided through the support section and a top fastening element is inserted into the front wall passing through the upper hole. In this way, it is ensured that the control device is suspended in the inner chamber without the need of any holes in the upper panel. The fasteners are placed from above, therefore, in case of any malfunction in the control device, deemed service can be easily provided by removing the top panel.

In a preferred embodiment of the invention, the mounting bracket is arranged on the base plate adjacent to a front portion. Thus, the through hole to be opened on the upper plate is also located in the front and the adjustment buttons can be placed in the front in an easily accessible way on the upper plate. A preferred embodiment of the invention comprises a gas distribution pipe extending parallel to the front portion and an upper jaw is engaged with the gas distribution pipe provided in the elevation section of the mounting bracket. In this way, it is possible to mount the control unit engaged in the gas distribution pipe in both gas and electric hobs.

A preferred embodiment of the invention comprises a support plate is secured to the base plate from a support portion and extending from the support portion parallel to the elevation section engage the gas distribution pipe from a lower jaw corresponding to the upper jaw. The support plate clings to the gas distribution tube at the opposite end of the mounting bracket, allowing the gas distribution tube to be attached to the base plate. Thus, the mounting bracket, which is attached to the gas distribution pipe with the upper jaw on the elevation section, is supported by the support plate and the base plate against vibrations.

A preferred embodiment of the invention comprises a first screw is extending from the support plate into a mounting hole disposed on the elevation section. The mounting bracket is indirectly fixed to the base plate by connecting the support plate and the mounting bracket with a screw.

A preferred embodiment of the invention comprises a second screw extending between the support plate and the elevation section parallel to the first screw such that the lower jaw and the upper jaw are arranged therebetween. In this way, it is possible to effectively hold the first and second screws and the lower and upper jaws to the gas distribution pipe and transfer the torque equally.

In a preferred embodiment of the invention, the support plate comprises an L-like bent metal plate. With the plate form, the support plate can be easily obtained from a strip structure.

In a preferred embodiment of the invention, the height of a front portion of a side wall surrounding the base plate is set greater than the height distance of the elevation section from the base plate. In this way, sufficient inner chamber height is guaranteed for mounting the control device at the front.

In a preferred embodiment of the invention, the mounting bracket is made of zamak alloy or aluminum. Thus, an assembly element with both light weight and high structural strength is provided. BRIEF DESCRIPTION OF THE FIGURES

Figure 1 is a perspective view of a representative embodiment of a hob with gas burner and electric heating element in the disassembled condition of the upper plate.

Figure 2 is a cross-sectional view of the front portion of a representative embodiment of a hob according to the invention, where the control unit is placed.

Figure 3 is a perspective view of the embodiment of a mounting bracket used to mount the control device to the hob, as seen in Figure-2.

DETAILED DESCRIPTION OF THE INVENTION

In this detailed explanation, the subject development of the invention is explained without any limitation and only with reference to examples for a better understanding of the subject.

In Figure 1 , a representative embodiment of a hob provides a perspective view of a casing (10) in a pool structure with the upper plate (60) removed. The casing (10) is formed from metal sheet in the form of a pool in one piece. The pool form has side walls (14) formed by raising the peripheral edges of a flat base plate (18) and a flange (12) obtained by bending it outward from its end. The hob comprises an elevated portion in the center of the base plate (18), and at its corners there are ribs to support a corresponding gas burner (1) or electric heating elements (2). A gas distribution pipe (40) extends transversely adjacent to a front portion (16) of the base plate (18) and supplies gas from there to gas cocks (20) placed at a distance adjacent to the front portion (16). The gas cocks (20) reach the gas burners (1 ) with the metal connection pipes, which are the continuation of the gas distribution pipe (40). A control device (30) in a commutator structure is mounted on the base plate (18) closer to the center between the gas cocks (20). At the lower portion of the control device (50), an opening (15) is located on the base plate (18) in a sequential grid structure. The control device (30) has a straight cylindrical adjustment shaft (34) extending upwards. A metal mounting bracket (50) is wrapped around the control device (30), hanging the control device on the casing (10) in a suspended manner. The casing (10) comprses a planar support section (52) and an elevation section (56) extending perpendicular to each other.

Figure 2 demonstrates the mounting of the control device (30) in an inner chamber (3) bounded by the casing (10) and an upper plate (60) closed. The control device (30) has a prismatic body (32). The rotary adjustment shaft (34) rises at the upper end of the body (32). The support section (52) on the upper portion of the L-shaped mounting bracket (50) abuts against a planar front wall (36) of the body (32) from its inner wall. In this case, the adjustment shaft (34) passes through a groove (53) in the middle of the support section (52) at its bottom. The groove (53) is formed with a U-like cut-out. After the adjustment shaft (34) is placed, the groove (53) 180° wraps the lower portion of the adjustment shaft (34) from the bottom. The support section (52) extends downwardly sloping towards the base plate (18) in a distance and parallel manner to an inclined panel (62) located above the upper plate (60). The front portion (16) of the vertically rising side walls (14) on the outer periphery of the base plate (18) is adjusted higher than the rear portion, thus, ensuring that the mounting bracket (50) remains at a distance from the panel (62). The panel (62) is in a flat form and there is a circular through hole (64) on it. The upper end of the adjustment shaft (34) extends outward from the through hole (64) where it is centered. A silicone gasket (65) surrounds the through hole (64) both from the inside and outside of the panel (62) and tapers outward in a conical manner surrounding the upper end of the adjustment shaft (34). The lower edge of the panel (62) is bent downwards and is placed outside the flange section of the front portion (16) with a distance between them.

The flat plate-shaped elevation section (56) extends vertically downward angled with the support section (52). A concave upper jaw (57) is formed near the lower end of the elevation section (56). The spring diameter of the upper jaw (57) is adjusted approximately equally so that it engages with the corresponding outer diameter of the gas distribution pipe (40) extending longitudinally adjacent to the front portion (16). The inner portion of the upper jaw (57) fits on the inward facing side of the gas distribution pipe (40). A bottom section (58) is obtained by bending the elevation section (56) vertically inward from its lower end. The bottom section (58) is parallel to and shorter than the support section (52). A support plate (70) in the form of a bent metal strip is fixed by snapping onto the base plate (18) from a flat supporting portion (74) adjacent to the front portion (16). The angled extension of the support plate (70) to the supporting portion (74) is parallel to and distant from the elevation section (56). A lower jaw (72) is formed on the support plate (70) in the opposite direction and corresponding to the upper jaw (57). The inner diameter of the lower jaw (72) is equal to the outer diameter of the gas distribution tube (40) and is engaged therefrom from the outside. A first screw (71) and a second screw (73) pass through the corresponding mounting holes (55) of the lower jaw (72) and upper jaw (57), respectively, with the gas distribution pipe (40) between them, attaching the mounting bracket (50) to the support plate (70) with the help of the gas distribution pipe (40). When the first and second screws (71 , 73) are placed, the lower jaw (72) is attached to the gas distribution pipe (40) together with the upper jaw (57). Thus, the elevation section (56) clings to the support plate (70) and keeps the control device (30) fixed on the mounting bracket (50) against the forces to be applied by the adjustment shaft (34).

In Figure 3, a representative embodiment of the mounting bracket (50) is shown in standalone perspective. The mounting bracket (50) produced from aluminum has a one-piece structure. A U-shaped groove (53) is present in the middle of the planar support section (52) which has a T-like form, dividing the support section (52) so that it has two symmetrical ears. An upper hole (51) is drilled in each lug in the middle from one end to the other. The top fastening element (54), which is a screw demonstrated in Figure 2, passes through the upper holes (51) and fixes the control device (30) from the front wall (36) to the support section (52). The concave upper jaw (57) is formed close to the lower portion of the elevation section (56), which extends vertically downwards from the support section (52). Mounting holes (55) are drilled adjacent to the upper and lower edges of the upper jaw (57). The mounting hole (55) is a threaded hole through which the first screw (71 ) at the top and the second screw (73) at the bottom pass through its far ends, making screw connections. The bottom section (58) extends inward in the same direction and parallel to the support section (52), adjacent to the lower end of the upper jaw (57).

REFERENCE NUMBERS

1 Gas burner 52 Support section

2 Heating element 53 Groove

3 Inner chamber 54 Top fastening element

10 Casing 55 Mounting hole

12 Flange 56 Elevation section

14 Sidewall 57 Upper jaw

15 Opening 58 Bottom section

16 Front portion 60 Upper plate

18 Base plate 62 Panel

20 Gas cock 63 Lower edge

22 Cock body 64 Through hole

24 Shaft 65 Gasket

30 Control device 70 Support plate

32 Body 71 First screw

34 Adjustment shaft 72 Lower jaw

36 Front wall 73 Second screw

40 Gas distribution pipe 74 Supporting portion 50 Mounting bracket

51 Upper hole

Claims

1- A hob comprising a casing (10) having a base plate (18); an upper plate (60) confining the casing (10) so as to define an inner chamber (3); an electrical heating element (2) disposed on the upper plate (60) defining a cooking zone, and a control device (30) with an adjustment shaft (34) connected to the heating element (2) in a signal-transmitting manner in such a way that adjusting the power setting to a predetermined level and is aligned on a front wall (32) with a through hole (64) of the upper plate (60) characterized in that a mounting bracket (50) is having a support section (52) to which the control device (30) is attached from the front wall (32) facing the upper plate (60) and an elevation section (56) protruding from the support section (52) towards the base plate (18).

2- A hob according to Claim 1 , wherein a groove (53) provided in the middle of the support section (52) and through which a lower portion of the adjustment shaft (34) is received.

3- A hob according to any one of the preceding claims, wherein the support section (52) and the elevation section (56) has an integrated L-like form.

4- A hob according to any one of the preceding claims, wherein a bottom section (58) is extending from the lower end of the elevation section (56) towards the back of the control device (30).

5- A hob according to any one of the preceding claims, wherein an upper hole (51 ) is provided through the support section (52) and a top fastening element (54) is inserted into the front wall (36) passing through the upper hole (51 ).

6- A hob according to any one of the preceding claims, wherein the mounting bracket (50) is arranged adjacent to a front portion (16) on the base plate (18).

7- A hob according to Claim 6, wherein a gas distribution pipe (40) is extending parallel to the front portion (16) and an upper jaw (57) engaged with the gas distribution pipe (40) provided in the elevation section (56) of the mounting bracket (50).

8- A hob according to Claim 7, wherein a support plate (70) is secured to the base plate (18) from a support portion (74) and extending from the support portion (74) parallel to the elevation section (56) engage the gas distribution pipe (40) from a lower jaw (72) corresponding to the upper jaw (57).

8 9- A hob according to Claim 8, wherein a first screw (71 ) is extending from the support plate (70) into a mounting hole (55) disposed on the elevation section (56). 10- A hob according to Claim 9, wherein a second screw (73) is extending between the support plate (70) and the elevation section (56) parallel to the first screw (71 ) such that the lower jaw (72) and the upper jaw (57) are arranged therebetween.

11-A hob according to Claims 8-10, wherein the support plate (70) is comprising an L-like bent metal plate.

12-A hob according to any one of the preceding claims, wherein the height of the front portion (16) of a side wall (14) surrounding the base plate (18) is set greater than the height distance of the elevation section (56) from the base plate (18).

13- A hob according to any one of the preceding claims, wherein the mounting bracket

(50) is made of zamac alloy or aluminum.

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