EP4036475A1

EP4036475A1 - Domestic gas stove knob structure

Info

Publication number: EP4036475A1
Application number: EP21217748.9A
Authority: EP
Inventors: Yasin YILMAZ; Ertan ANGI
Original assignee: Renta Elektrikli Ev Aletleri Sanayi Ve Dis Ticaret Ltd Sirketi
Current assignee: Renta Elektrikli Ev Aletleri Sanayi Ve Dis Ticaret Ltd Sirketi
Priority date: 2021-02-01
Filing date: 2021-12-24
Publication date: 2022-08-03
Also published as: TR202101509A1

Abstract

The invention relates to domestic gas stove knob structure to be used in domestic appliances such as stove, oven, cooker and stovetop, providing advantages in terms of both mountability, aesthetic structure and impermeability. The invention relates particularly to a domestic gas stove knob that gives a single piece component aesthetically, enabling the fixing of the knob-boss to the stove glass by means of the spring, and preventing the liquid to come from upper and lower parts to pass inside the stove by means of the seal designed inside the knob-boss and used as a single piece with this knob-boss.

Description

Technical field of the invention

The invention relates to domestic gas stove knob structure to be used in domestic appliances such as stove, oven, cooker, and stovetop, hob providing advantages in terms of both mountability, aesthetic structure and impermeability.
The invention particularly relates to a domestic gas stove knob that gives a single piece component aesthetically, enabling the fixing of the knob-boss to the stove glass by means of the spring, and preventing the liquid to come from upper and lower parts to pass inside the stove by means of the gasket designed inside the knob-boss and used as a single piece with this knob-boss.

State of the Art

Stove knobs are used to turn on and off domestic appliances such as gas stoves, ovens, cookers, hob, and stovetops and to adjust the gas setting. These knobs provide both the gas to the stove and the burning of the gas. In addition, the gas level adjustment of the burning stove is made by these knobs.
It is of great importance that these knobs provide an aesthetic appearance and mountability in stoves and other domestic appliances where knobs are used. Mountability ensures that the products come out of the product line faster during the production phase and increase the labour efficiency. There are different configurations and designs of the knobs for the aesthetic appearance. These may vary from electronic, touch knobs that increase the costs to knobs that can be concealed in the stove and complicate the production. Even though the developed knobs stand out aesthetically, they bring with certain problems.
The cleaning of the stoves is another important issue for the users. Even though the cleaning is generally made with a wet cloth, the cleaning is made with water and the stoves are exposed to contact with water due to their positions. For this reason, the knobs also need to be impermeable. Even though standard sealing components are used for impermeability, a certain amount of water leaks anyway.
Patent document no " TR2019/16447 " in the state of the art is reviewed. In the abstract of the invention that is the subject of the application, the following is stated: "The invention is an electronic ignition system used in home cooking stoves, ovens, industrial stoves/ovens, non-domestic stoves/ovens, enabling the stove free from the mains electricity to be ignited without a plug in and related installation, and the battery of which is replaced through the knob in gas stoves, comprising at least one stove knob cap enabling the battery replacement through the stove knob by the user without needing the service intervention, at least one battery holder apparatus, at least one stove knob, at least one stove knob sub-apparatus, at least one transformer converting the electricity it takes from the battery to a spark, at least one switch band enabling the ignition from the knob, and at least one spark plug to transfer the spark from the transformer to burners. After the battery power depletes, the easy battery replacement by the user through the knob is provided. Since customers can easily replace the battery without service intervention, they do not need to pay an additional fee to the service". This invention relates essentially to an ignition system that do not require electricity.
Patent document no " TR2017/10435 " in the state of the art is reviewed. In the abstract of the invention that is the subject of the application, the following is stated: "The present invention relates to a knob which is used in such appliances as ovens, cookers, refrigerators, washing machines, dishwashers, dryers, built-in ovens as well as on the devices included in furniture, automotive, electric, electronics, aircraft, and vessel industries and which, by being attached to the devices in said industries, provides a different-color lighting property according to the position to which it is rotated in order to display the adjusted heat level or the adjusted stage level to the user." This invention is essentially a lighted knob illuminating the gas level as it is rotated.
Patent document no " EP2979035 " in the state of the art is reviewed. In the invention that is the subject of the application, a gas stove and waterproof structure of the operating device of a gas stove is provided. The waterproof structure is in the shape of a hollow barrel and includes a sealing portion that are disposed from bottom to top successively along an axial direction of the waterproof structure, The snap portion is connected to the sealing portion and the hardness of the snap portion is higher than the hardness of the sealing portion.
Patent document no " EP3021190 " in the state of the art is reviewed. In the invention that is the subject of the application, a gas cooker point having a gas valve, an operating element rotationally fixed to a drive shaft of the gas valve to drive the gas valve and a sealing installation placed in it are mentioned. The sealing device has a first sealing element and a second sealing element connected to the coating element.
In the state of the art, the knob and knob bottom gasket are mounted separately. As the parts to which these two parts are fixed are different, the problem of not being concentric between the knob and the knob bottom gasket is seen.
In the state of the art, the knob gasket used under the knob cannot provide what is desired aesthetically. Furthermore, due to low mountability, gasket that are not fully mounted on the line can be encountered. Therefore, full protection in terms of sealing cannot be ensured.
In the state of the art, since the centring of the knob is done by valve and of the gasket by glass or burner platform, incompatibility between the knob and gasket centres may be seen.
Conclusively, due to the above-described problems and the insufficiency of the existing solutions made it necessary to make an improvement in the relevant technical field.

The aim of the invention

The most important aim of the invention is centring the entire system by means of the knob and mounting the knob being sufficient. By this way, the mounting of the knob structure on the stove can be done by one single centring.
Another important aim of the invention is that it provides maximum sealing by being connected to the stove surface with no gaps by means of the gasket concealed under the knob-boss. By this way, the gasket becomes invisible, and the appliance appeals to the eye aesthetically.
Another aim of the invention is that provides advantages in terms of both mountability, aesthetic structure and sealing.
Another aim of the invention is that it uses the knob-boss made of hard plastic looking as a single piece with the knob. By this way, impermeability problem that can be seen in the hard plastic use is solved with the gasket concealed under the knob-boss
Another aim of the invention is, by means of the knob-boss looking as a single piece with the knob, permeability, as well as visual quality, are obtained through the knob gasket located thereunder.
Another aim of the Invention is that the impermeability gasket surface of the spring between the knob and the knob-boss pressurizes on the stove surface. By this way, the gasket provides 100% impermeability.
Another aim of the invention is that the knob and the knob-boss provide an aesthetic appearance providing a single piece component feeling.
Another aim of the invention is that the fixing of the knob-boss on the stove surface is guaranteed by means of the spring.
The structural and characteristic properties and all advantages of the invention will be more clearly understood with the figures given below and the detailed description written with reference to these figures. Therefore, the assessment should also be made by taking these figures and the detailed description into account.

Description of drawings

Figure -1: is the drawing providing the exploded isometric view of the knob that is the subject of the invention.
Figure -2: is the drawing providing the exploded front view of the knob that is the subject of the invention.
Figure -3; is the drawing providing the mounted sectional view of the knob that is the subject of the invention.
Figure -4: is the drawing providing the sectional view of the knob that is the subject of the invention, as mounted on the stove.

Reference numbers

1.: Knob
11. Shaft gap
12. Knob Groove
13. Spring Support Base

2.: Spring
3.: Knob-boss
31. Spring groove
32. Gasket Gap

4.: Gasket
5.: Stove Surface
6.: Valve

Description of the invention

The invention is a knob structure that gives a single piece component feeling aesthetically, enabling the fixing of the knob-boss (3) to the stove surface (5), and preventing the liquid to come from upper and lower parts to pass inside the stove by means of the gasket (4) designed inside the knob-boss (3) and used as a single piece with this knob-boss (3).
The knob structure that is the subject of the invention comprises, in general terms, the knob (1) void-free connected with the stove surface (5) and located on the valve (6) enabling the adjustment of the gas, spring (2), knob-boss (3) and gasket (4).
Said knob (1), spring (2), knob-boss (3) and gasket (4) are mounted to one another and form the knob structure that is the subject of the invention as shown in Figure-3.
The knob (1) enables that the valve (6) connected to is driven by rotating around its own axis with the rotational force and movement applied by the user. The knob (1) is directly connected to the shaft of the valve (6). The knob (1) has a shaft gap (11) therein, not visible to the user and to which the valve (6) shaft is located and fixed. For the knob (1) to be connected directly to the valve (6), there is a pipe structure inside and at the centre of the knob extending up to valve. The shaft gap (11) shown in Figure-2 is in the inner surface of the knob (1) and is the gap inside the pipe form located exactly at its centre. The inner side of this pipe form forms the shaft gap (11). With the pipe form it has, the shaft gap (11) also ensures the centring of the knob structure from a single point. There is another gap remaining on the outer side of this pipe form and also enclosing the pipe form inside the knob (1). This gap is called the knob groove (12) to which the knob-boss (3) and the spring (2) is located. The surface which can also be defined as the base of the body groove (12) remaining right behind the surface of the knob (1) visible to the user is called the spring support base (13). The spring support base (13) ensures the fixing of one end of the spring (2) remaining in the knob groove (12) and the transfer of the spring (2) repelling force to the other end. The pipe form on the knob (1) and the shaft gap (11) connected to it, the knob groove (12) and the spring support base (13) is one piece and forms the knob (1).
The spring (2) ensures that the knob-boss (3) is void-free fixed to the stove surface (5). The spring (2) is located to the knob groove (12) and the spring groove (21) on the knob-boss (3). For this, one end of the spring (2) contacts the spring support base (13) and the other to spring groove (31). Said spring (2) ends are the upper and lower contact surfaces of the spring (2) on the vertical axis in rectangular position to the stove surface (5), also shown in Figure-2. Said upper contact surface contacts to the spring support base (13) and the lower contact surface to the spring groove (31). When the knob structure is mounted, the spring (2) is jammed rectangularly to the stove surface (5) and creates a repelling force. This repelling force is applied to the knob (1) by the help of the spring support base (13); and to the knob-boss (3) by the help of the spring groove (31). Since the knob (1) is fixed to the valve (6), repelling force cannot be exerted in the axis vertical to the stove surface (5) and all the force are exerted downwards on the axis rectangular again to the stove surface (5), i.e. to the knob-boss (3). Since the knob-boss (39 can move freely in the knob groove (12) in the position rectangular to the stove surface (5), the force exerted by the spring (2) repels the knob-boss (3) and the gasket (4) inside the knob-boss (3) towards the stove surface (5). With this repelling force, the knob-boss (3) and the gasket (4) is void-free connected to the stove surface (5).
The knob-boss (3) is void-free connected to the stove surface (5) with the repelling force the spring (2) exerts. On the knob-boss (3) are spring groove (31) and gasket gap (32) where one end of the spring and the gasket (4) are located, respectively. The spring groove (31), as shown in Figure-1, covers a space from where one surface of the spring (2) can take support and into where the spring (2) can enter. The gasket gap (32) enables the gasket (4) to be invisibly located within the knob-boss (3). The invisibility mentioned here is one that blocks the gasket (4) to be seen by the user and provides an aesthetic view of the knob structure. By this way, the entire gasket (4) remains within the knob-boss (3) and cannot be when viewed from outside. Furthermore, the knob-boss (3) also bears an appropriate gap thereon for the pipe-form protrusion of the knob (1) to be directly fixed to the valve (6).
The gasket (4) is located into the gasket gap (32) on the knob-boss (3) and prevents the possible leaks from the knob-boss (3). Furthermore, the gasket (4) also bears an appropriate gap thereon for the pipe-form protrusion of the knob (1) to be directly fixed to the valve (6). Said gap is also on the knob-boss (3). The pipe-form that is an extension to the knob (1) with this gap passes through the gaps located right in the centre of the knob-boss (3) and the gasket (4) and by this way, both the knob structure is centred at one single point and the knob (1) can be connected directly to the valve (6). By being void-free connected to the stove surface (5) with the gasket (4) concealed under the knob-boss (3), the gasket (4) provides maximum impermeability.
The knob (1) and the knob-boss (3) give a single piece feeling aesthetically. The knob (1) and the hard plastic made knob-boss (3) seem to be a single piece with it are used actively. By this way, impermeability problem that can be seen in the hard plastic use is solved with the gasket (4) concealed under the knob-boss (3). By means of the spring (2) within the system, fixing the knob-boss (3) to the stove glass is guaranteed. Furthermore, by means of the gasket (4) designed within the knob-boss (3) and is used as a single piece with it, passage of liquid that may come from upper and lower parts into the stove is prevented. By means of the force of the spring (2) in the system, the knob-boss (3) and the gasket (4) connected to it will always contact the stove surface (5).
In the knob structure that is the subject of the invention, the entire system is centred by the help of the knob (1) and the mounting of only the knob (1) to the valve (6) is sufficient. By this way, the mounting of the knob structure on the stove can be done by one single centring. By this way, the knob structure provides advantages in terms of both mountability, aesthetic structure and impermeability.

Claims

Knob structure to be used in domestic appliances such as stove, oven, cooker, and stovetop, comprising;
• The knob (1) driving the valve (6) it is connected to by rotating around its own axis with the rotational force to be exerted by the user, having the shaft gap (11) where the valve (6) shaft on the inner side invisible to the user will be located and fixed, the knob groove (12) where the knob- boss (3) and the spring is located, and the spring support base (13) that is the base of the knob groove (12) on the inner side, right behind the outer surface visible to the user and to which one surface of the spring (2) contacts,

• The spring (2), one surface of which is located to the knob groove (12) and the other to the spring groove (21) on the knob-boss (3), which creates a repelling force towards the stove surface (5) by jamming in a position rectangular to the stove surface (5) with the mounting of the knob (1) to the valve (6), and jams the knob-boss (3) and the gasket (4) towards the stove surface (5) with this repelling force it creates and void-free locates the knob-boss (3) and gasket (4) to the stove surface (5) with this jamming it forms,

• The knob-boss (3) which can move freely in the vertical position in relation to the stove surface (5) within the knob groove (12), connects void-free to the stove surface (5) with the repelling force exerted by the spring (2), and has spring groove (31) to which the one surface of the spring (2) is located and gasket gap (32) to which the gasket is located, and

• The gasket (4) which is located into the gasket gap (32) on the knob-boss (3) and prevents the possible leaks from the knob-boss (3).
Knob structure according to Claim 1, comprising the pipe-form on the inner side and right at the centre of the knob (1) and extending directly up to the valve (6) for the knob (1) to directly connect to the valve (6) shaft.
Knob structure according to Claims 1 or 2, comprising the shaft gap (11) to which the valve (6) shaft on the inner side of the pipe-form connects.
Knob structure according to Claims 1 or 2, comprising the knob groove (12) remaining outside of the pipe-form, enclosing the outer circumference of the pipe-form on the inner side of the knob (1) and forming the space where the knob-boss (3) can be located.
Knob structure according to Claims 1 or 2, comprising the knob-boss (3) bearing the required space through which the pipe-form can pass.
Knob structure according to Claims 1 or 2, comprising the gasket (4) bearing the required space through which the pipe-form can pass.
Knob structure according to Claim 1, comprising the spring (2) having two contacts surfaces, the upper and lower surfaces, on the vertical axis rectangular to the stove surface (5).
Knob structure according to Claim 7, comprising the spring (2), upper contact surface of which contacts the spring support base (13) and lower contact surface of which contacts spring groove (31).
Knob structure according to Claim 1, comprising the spring (2) exerting repelling force to the knob (1) by means of spring support base (13) and to knob-boss (3) by means of the spring groove (31).
Knob structure according to Claim 1, comprising spring (2) which cannot exert repelling force upwards in the axis rectangular to the stove surface (5) when the knob (1) is fixed to the valve (6) and exerts all the jamming force downwards to the knob-boss (3) in the axis rectangular to the stove surface (5).
Knob structure according to Claim 1, wherein the pipe form and the shaft gap (11), the knob groove (12) and the spring support base (13) forming the knob (1) is one piece.
Knob structure according to Claims 1 or 8, comprising spring groove (31) from which the lower contact surface of the spring (2) can take support and into which the spring (2) can enter.
Knob structure according to Claim 1, comprising the gasket gap (32) that conceals the gasket (4) in a way the gasket (4) remains completely in the knob chuck (3) and invisible to the user.
Knob structure according to Claims 1 or 2, comprising the pipe-form that is an extension of the knob (1) and connects the knob (1) directly to the valve (6) passing through the gaps exactly in the centre of the knob-boss (3) and the gasket (4) for centring from one single point.