IT201800021247A1 - CONTROL DEVICE FOR IGNITION OF GAS BURNERS IN A DOMESTIC COOKING APPLIANCE - Google Patents

Description

DESCRIPTION

of the patent for industrial invention entitled: "CONTROL DEVICE FOR IGNITION OF GAS BURNERS IN A DOMESTIC COOKING APPLIANCE"

Technical Sector of the Invention

The present invention relates to a control device for the ignition of gas burners in a domestic cooking appliance, in which the ignition of each burner is controlled by the knob of a gas tap of the burner, whose pressure and / or rotation opens the gas tap and closes a switch, which electrically powers a spark plug of a high voltage ignition system of gas burners, causing a spark to strike between the spark plug and a respective burner, with consequent ignition of the burner.

Technique Note

Domestic cooking appliances for kitchens, generally known as "hobs" comprise a plurality of gas burners associated with respective gas taps, which allow the user to feed fuel gas to the burner and to regulate the intensity of the flame.

Generally, the gas burners are associated with respective spark plugs which control the ignition of the combustible gas flow by causing a spark to strike between a plug and a respective burner, whose gas tap has been opened, generally by turning a knob. command.

The candles are in fact electrically connected, through a suitable electric circuit, to an electric igniter which supplies them, in a closed electric circuit, with a high voltage current capable of generating an electric discharge between the spark plug and the respective burner, connected to earth. or spark.

The electric circuit is generally equipped with a plurality of switches, normally open, each of which is associated with a respective gas cock.

Closing each switch supplies high voltage to the respective spark plug when the respective gas cock is opened, generally by pressing and simultaneously rotating the gas cock control knob.

A switch device for domestic cooking appliances of the type described above is known, for example, from WO2014 / 189621.

One of the drawbacks of the prior art is that a plurality of electrical switches are required to produce the ignition of the different burners. Furthermore, the presence of the electrical switches in correspondence with the burners exposes the switches to possible spills of liquids which from the cooking hob may seep towards the switches themselves.

According to a co-pending patent application, the Applicant has therefore developed a control device for lighting gas burners in a domestic cooking appliance which uses a single switch, which can also be arranged away from the burners and , therefore, in a position that is safe from any infiltration of liquids.

This control device consists of a mechanical wire or cable, flexible and of predetermined length, which passes through, according to a series configuration, a plurality of actuation members, which are each mounted on a respective gas cock.

Each actuation member includes a support that can be connected integrally to a gas cock and a slide carried sliding (or rotating) from the support and equipped with a projection or finger adapted to cooperate with the gas tap, when this is operated, to move the slide between a rest position, in which it does not cooperate with the flexible wire or cable, and a working position, in which the slide locally bends the flexible wire or cable forming one or more loops in it.

The flexible wire or cable is in turn connected to a switch device including an electrically insulating body and a movable cursor, slidably housed in the insulating body; the latter is internally provided with two fixed electrical contacts, while the movable cursor carries a bridge electrical contact, which constitutes the movable contact of the switch. The movable slider cooperates with an elastic member housed in the insulating body and which normally holds it in an open switch position, in which the bridge contact or movable contact does not cooperate with the fixed contacts.

The movable slider is also connected integral with a first end of the wire or flexible cable, while a second end of the flexible cable is secured to the hob in a fixed position, for example it is fixed integral with the support of the last (according to the aforementioned configuration in series) of the drive members.

Therefore, the formation of one or more loops in the flexible wire or cable at a gas cock following the actuation of its control knob causes a pulling action on the flexible wire or cable, which moves the movable cursor of the switch device from the switch open position in a closed switch position, in which the elastic member is compressed and the bridge electrical contact or moving contact cooperates with the two fixed contacts, closing a single electrical circuit for supplying all the spark plugs. Consequently, a spark strikes between each candle and the respective burner, causing the burner to ignite whose gas tap has been activated.

The control device described, while highly satisfactory, is nevertheless of complex assembly. Furthermore, it must be supplied in a pre-assembled state.

Summary of the Invention

The object of the present invention is therefore to overcome the drawbacks of the known art and in particular to provide a control device for igniting gas burners in a domestic cooking appliance that is reliable, compact and cost-effective, at the same time. at the same time increasing the simplicity of construction and, above all, the simplicity and speed of assembly, so as to be able to supply it indifferently in a pre-assembled state or with its components all separate.

According to the invention there is therefore provided a control device for igniting gas burners in a domestic cooking appliance, as well as a domestic cooking appliance equipped with this control device and a switch device usable in this control device, having the characteristics set out in the appended claims.

Brief description of the drawings

The invention will now be described with reference to the attached drawings, which illustrate a non-limiting example of implementation, in which:

- Figure 1 schematically illustrates a partially sectioned perspective view of a control device according to the invention;

Figure 2 is an enlarged view of a partially sectioned perspective view of a switch device of the control device of Figure 1, rotated by 90 ° with respect to Figure 1;

figure 3 shows a perspective view of a detail of the switch device of figure 2 with parts removed for simplicity;

Figure 4 illustrates a longitudinal elevation view of the switch device of Figure 2 coupled to an actuation member forming part of the control device of Figure 1 and in turn coupled to a gas cock;

Figure 5 illustrates a rear three-quarter perspective view of one end of the switch device of Figure 2 equipped with an integrated electrical connector;

Figure 6 illustrates on an enlarged scale a perspective view of the control device of Figure 1 in a pre-assembled state; And

Figure 7 illustrates on an enlarged scale a perspective view of the control device of Figure 1 in a disassembled state, with its main components illustrated separately in Figures 7a, 7b and 7c.

Detailed description

In Figure 1, the number 1 indicates as a whole a control device for a domestic cooking appliance 2 (Figure 3), known and illustrated only schematically and in part for simplicity. The domestic cooking appliance 2 comprises a plurality of gas burners 3 (known and of which only one is schematically illustrated for simplicity) connected to respective gas taps 4 (known and of which only one is schematically illustrated for simplicity in figures 1 and 4), which regulate the flow rate of the gas flow supplied to the respective gas burners 3. The gas taps 4, each associated with a respective burner 3 arranged coaxially with it, are usually arranged in a known and not illustrated chessboard configuration. for simplicity.

The cooking appliance 2 further comprises an electric igniter 5, known and illustrated only schematically with a block in Figure 3, and a plurality of known spark plugs 6, of which only one is schematically illustrated in Figure 3, each arranged adjacent to a respective burner 3 and electrically connected to the electric igniter 5 through a known electric circuit 7, only schematically illustrated in Figure 3.

The control device 1 is used to close the electric circuit 7 and, consequently, put the spark plugs 6 under voltage, through the electric igniter 5, when at least one of the gas taps 4 is operated by a user.

For this purpose, the control device 1 comprises a flexible mechanical cable 8 of predetermined length, preferably made of Nomex® or other mechanically resistant, flexible and non-conducting material, a switch device 9 operatively associated, or associable as will be seen, to the cable flexible cable 8 and a plurality of actuation members 10 configured to be passed through by the flexible cable 8 when they are arranged together in series succession along the flexible cable 8 itself, as illustrated in Figures 1 and 6.

The actuation members 10 are configured to be mounted in a known way, each, on a gas cock 4 associated with a respective burner 3. The coupling between an actuation member 10 and a respective gas cock 4 is schematically illustrated in Figures 1 and 4.

With reference also to Figures 2 to 6, each actuation member 10 comprises a support 11 which can be connected in a known way and integrally to a gas cock 4 and, according to the invention, passed through in use by the flexible cable 8, and a movable element 12 carried by the support 11 and operatively associated, in use, with the flexible cable 8.

In the illustrated non-limiting example, the support 11 includes an annular mounting portion 13, adapted to be fitted and fixed in a known way on a gas cock 4, and a rail portion 14, radially protruding on one side of the mounting portion 13, which receives the movable element 12 sliding parallel to an axis or control pin 15 of the gas cock 4 and which is configured to receive the flexible cable 8 transversely passing through.

The movable element 12, in turn, includes a slide 16 which engages slidingly and, preferably, with snap action, the rail portion 14 and a projection or finger 17 configured to cooperate in a known way with the gas cock 4, so as to causing the slide 16 to slide on the rail portion 14 and towards the cable 8 as a consequence of the operation of the gas cock 4 by a user.

For example, the projection or finger 17 is configured to cooperate on a lower side of an operating knob (known and not illustrated) of the gas cock 4, mounted on the pin or axis 15, or on the lower side of a bush pre-assembled on the pin or axis 15, according to what is described in the patent of the same Applicant US7243647B2.

In particular, the mobile element 12, in this case the slide 16, is configured to be moved, as a result of an actuation of the gas tap 4, between a rest position and a working position.

In the rest position, illustrated in Figure 1 on an actuation member indicated with 10b, an engaged length of cable 8 passing through the rail portion 14 is in a straight undeformed configuration.

In the working position, illustrated in figure 1 on an actuation member indicated with 10c, the mobile element 12 bends the stretch of flexible cable 8 engaged passing through the rail portion 14 forming on the same at least a loop 18; for this purpose, the slide 16 and an end portion 19 of the rail portion 14 opposite the projection or finger 17 are comb-shaped.

In this way, end 19 and slide 16, in the working position of the mobile element 12, "pinch" the flexible cable 8 between them, consequently forming on the same at least a pair of loops 18, as illustrated in figure 1 for the actuation member 10c.

To open a gas cock 4, the user presses downwards and subsequently rotates the control pin 15. During the downward pressure of the pin 15, the respective mobile element 12 is pushed downwards, the slide 16 of which, together with the end 19 bends a corresponding portion of the flexible cable 8 which passes through the rail portion 14 forming the loops 18 and consequently placing the entire flexible cable 8 in traction.

According to a possible variant not illustrated for simplicity, the gas tap 4 can be operated by the user only in rotation. In this case, each actuation member 10 is configured to bend the cable 8 as a consequence of the rotation of the pin 15 alone, using for example a configuration similar to that described in patent application WO2014 / 189621.

The switch device 9 comprises an electrically insulating body 20, a movable cursor 21 (figures 1 and 2) slidably housed in the insulating body 20 between an open switch position (shown in figure 2) and a closed switch position (shown in figure 1). ), and an electric switch 22 (Figure 2) housed within the insulating body 20 and comprising at least one fixed contact 23 and a movable contact 24 operatively associated with the movable cursor 21.

The flexible cable 8 has a first end 25 configured to be connected integral with the movable cursor 20, for example as illustrated in Figure 2 and as will be described in more detail below, and a second end 26, opposite the first end 25, configured to be connected integral with the support 11 of an actuation member 10d (Figure 6) at the end of the series of actuation members 10 arranged along the cable 8.

In this case, the terminal actuation member 10d is the actuation member 10 furthest from the switch device 9.

According to a first feature of the invention, both the fixed 23 and mobile 24 contacts are brought together by the insulating body 20 in a mutually facing position (Figure 2).

The movable contact 24 is configured to remain normally away from the fixed contact 23 and to cooperate elastically with the movable slider 21 to be pushed against the fixed contact 23 when the movable slider 21 moves to the closed switch position.

Furthermore, the switch device 9 also comprises a pair of elastic contrast elements 27 carried integral by the insulating body 20 and configured to push the movable cursor 21 towards the open switch position, in which the movable contact 24 is not pushed by the movable cursor 21. against fixed contact 23.

In combination with the above, insulating body 20 and flexible cable 8 are configured in such a way that the flexible cable 8 is in use housed through inside the insulating body 20, aligned with a direction or axis of translation A (figure 2) of the slider mobile 21 and is interposed between the at least one pair of elastic elements 27, which flank it from opposite sides, as well illustrated in Figures 1 and 3.

The elastic contrasting elements consist of a pair of helical springs 27 arranged parallel to the direction or axis A of translation of the mobile cursor 21 and in such a way that respective axes of symmetry B and C of the helical springs 27 and D of the flexible cable 8 lie on a the same first plane α (figure 1), coinciding with a plane of median longitudinal section of the insulating body 20.

Inside the insulating body 20 the axis of symmetry D of the flexible cable coincides with the direction or axis of translation A of the mobile cursor 21.

The helical springs 27 are arranged in a pack, each, between a first end 28 (Figures 2 and 3) of the movable slider 21 and a bottom transverse wall 29 (Figure 2) of an internal cavity 30 of the insulating body 20.

The cavity 30 houses in use the movable cursor 21, the helical springs 27 and a portion 31 of the flexible cable 8 immediately adjacent to the first end 25.

The bottom transverse wall 29 is also arranged towards a first end 32 of the insulating body 20, opposite the movable slider 21.

The helical springs 27 are each fitted to a respective stem 33 projecting axially and projecting from the first end 28 of the movable slider 21 and towards the first end 32 of the insulating body 20.

The movable slider 21 is constituted by a block of electrically insulating material passed through, in use, by the flexible cable 8, which is housed / housed in a longitudinal groove 34 of the movable slider 21 arranged transversely to the helical springs 27 and to the aforementioned plane α .

The first end 25 of the flexible cable 8 is constrained in abutment against a second end 35 of the movable cursor 21, opposite the first end 28, by means of a shoulder element 36 fixed integral with the first end 25 of the flexible cable 8, consisting for example of a cable lug caulked on the end 25, and which cooperates in contact against a front face of the second end 35 of the movable cursor 21. The shoulder element 36 is first of all fixed integral with the flexible cable 8 and, subsequently, inserted in abutment against the second end 35 of the movable slider 21.

In the preferred embodiment illustrated, the insulating body 20 of the switch device 9 comprises a substantially parallelepiped cup-shaped body 37 provided with a lateral access opening 38 (figure 3) and a cover 39 for closing the lateral opening 38, removably coupled to the cup-shaped body 37, which internally delimits the aforementioned internal cavity 30 of the insulating body 20, which is closed in use by the lid 39.

The cavity 30 is configured, as already described, to house inside it the movable cursor 21, the portion 31 of the flexible cable 8 and the at least one pair of helical springs 27 assembled in a pack between the movable cursor 21 and the bottom transverse wall 29 of the cavity 30 of the cup-shaped body 37, between which springs 27 the flexible cable 8 is interposed in use flanked on its opposite sides and parallel thereto by the helical springs 27 themselves.

Furthermore, the movable slider 21, which in the illustrated example is frame-shaped, is configured to be passed through by the portion 31 of the flexible cable 8, which is housed in use within the longitudinal groove 34 (defined in the example illustrated by two mutually aligned grooves 34 made passing through the ends 28 and 35) of the movable slider 21, which is oriented transversely to the helical springs 27 and to the side opening 38 and is open towards the lid 39.

According to a further feature of the invention, the lid 39 delimits a longitudinal slot 40 for accessing the cavity 30 of the cup-shaped body 37 arranged facing the longitudinal groove 34 of the mobile slider 21.

A second bottom transverse wall 41 of the cavity 30 of the cup-shaped body 37, opposite the wall 29 and which delimits a second end 42 of the insulating body 20, has a transverse groove 43 open towards the lid 39 and parallel to and aligned with, the longitudinal groove 34 of the movable slider 21.

The transverse groove 43 is configured to be passed through the first end 25 of the flexible cable 8 and faces the longitudinal slot 40 of the cover 39, so that the flexible cable 8 can be coupled to the movable cursor 21 from the outside of the insulating body 20 , inserting it into the cavity 30 of the cup-shaped body and into the longitudinal 34 and transverse 43 grooves, operating through the longitudinal slot 40 of the cover 39.

The end 42 of the insulating body 20 is also provided externally with a cantilevered frame structure 44 open towards the cover 39 and extending beyond the cover 39, so as to remain open when the cover 39 is installed, configured to receive and house the shoulder member 36.

The cup body 37 is laterally provided, on the opposite side to the side mouth 38 and in a position adjacent to the movable cursor 21, with a "Rast 2.5" type connector 45 made integral with the cup body 37 and with the electrical switch 22.

The cup-shaped body 37, the lid 39 and the movable slider 21 were in fact made by molding in a synthetic plastic material and the movable contact 24 and the fixed contact 23 are constituted by metal sheets fixed integral, inside the cavity 30 of the body a cup 37, to a side wall 46 of the cup-shaped body 37 provided externally to the cavity 30 of the connector 45 of the “Rast 2,5” type.

The movable contact 24 is defined by a metal sheet suitably shaped and elastically flexible towards the fixed contact 23, above which it extends overhanging and in a remote position in undeformed (not flexed) conditions.

Both contacts 23 and 24 are then connected integrally with respective foil connectors 47 (figure 3), which are integrated in the connector 45 “Rast 2,5”.

The end 26 of the flexible cable 8 is also provided with a shoulder element 48 configured to abut against the rail portion 14 of the last actuating member 10d, so that the flexible cable 8, once inserted movable element 12 of the actuation member 10d in position on the rail portion 14 remains rigidly constrained to said last actuation member 10d.

The flexible cable 8 has the function of controlling the movement of the movable cursor 21 between the open switch position and the closed switch position. When one or more portions of the flexible cable 8 are bent in a direction orthogonal to the longitudinal axis D of the flexible cable 8 forming the loops 18, the end 25 of the flexible cable 8 moves in the direction A and moves the movable cursor 21 against the action of the springs 27 towards the bottom wall 29.

The movable cursor 21 intercepts the metal sheet that forms the movable contact 24 causing it to flex towards the fixed contact 23, closing the switch 22 and consequently feeding the spark plugs 6. According to a further feature of the invention, the fixed contact 23 is mounted slightly cantilevered with respect to, i.e. away from, the side wall 46, to which it is fixed in any case integral, so that between the side wall 46 and the metal sheet constituting the fixed contact 23 there is a play, which is necessary to compensate for the stroke in phase contact closure 24 and improve the drive load.

When the user no longer operates a gas cock 4 so as to supply the spark plugs 6, the traction stress applied by one or more actuation members 10 on the flexible cable 8 and the springs 27, which have been compressed during the movement of the slider, ceases movable 21 towards the closed circuit-breaker position, bring the flexible cable 8 back to a non-deformed configuration and the movable cursor 21 to the open circuit-breaker position, in which the movable cursor 21 no longer intercepts the flexible metal sheet constituting the movable contact 24, which consequently it returns to a position away from the fixed contact 23 by opening the switch 22.

Thanks to the structural characteristics described, the switch device 9 and the plurality of actuation members 10 can be pre-assembled on the flexible cable 8 to form a pre-assembled unit 49 (Figure 6) configured for direct assembly on respective gas taps 4 of a domestic cooking appliance 2.

Alternatively, the switch device 9, the plurality of actuation members 10 and the flexible cable 8 can be configured to form a quick assembly kit 50 (Figure 7) adapted to allow the control device 1 to be assembled directly on the cooking appliance. domestic 2.

Finally, the insulating body 20 is preferably provided, at the end 32 and externally thereto, in this case externally to the cup-shaped body 37, with a sliding coupling device 51, known per se, possibly snap-on, for a first 10a of the actuation members 10, in this case the one closest to the switch device 9, so that the switch device 9 is assembled in use integral with the cooking appliance 2 simply by mounting the actuation organ 10a integral with the respective burner 3.

Once mounted on the cooking appliance 2, the control device 1 allows to simplify the electrical circuit 7, it is very quick to assemble thanks to the slot 39 and to the positioning of the springs 37 next to the flexible cable 8, so that it can be supplied disassembled. , reducing the size of the packages, and the only electrical switch 22 present is protected and above all moved with respect to the position of the hole in the hob 2 which houses the burner 3 which supports the switch device 9 together with the actuating member 10a, thus being protected from accidental spillage of liquids.

Furthermore, the actuation members 10 can be positioned anywhere along the flexible cable 8 and, if pre-mounted thereon, are free to slide along the cable 8 during the installation of the device 1, so that the same control device 1 can be mounted on any cooking appliance 2, being released from the center distances present between the gas taps 4.

Finally, it is clear from what has been described that the switch device 9 can be used, possibly with minimal modifications, also for other applications in addition to the one illustrated, for example in a door-locking device for dishwashers or washing machines, in which a movable element such as for example a door or porthole can cooperate directly with the movable slider 21 by moving it in place of the flexible cable 8 and bringing the movable contact 24 against the fixed contact 23. In this case, two springs 27 may not be necessary, but only one may suffice mounted in axis with the translation direction A of the mobile cursor 21.

All the purposes of the invention are therefore achieved.

Claims (11)

CLAIMS 1. Control device (1) for igniting gas burners in a domestic cooking appliance, the control device comprising a flexible cable (8) of predetermined length, a switch device (9) operatively associated, or associable, to the flexible cable and a plurality of actuation members (10) configured to be passed through through the flexible cable when they are arranged together in a series along the flexible cable, the actuation members being configured to be mounted, each, on a gas cock associated with a respective burner; - each actuation member (10) including a support (11) integrally connectable to a gas cock and passed through in use by the flexible cable, and a movable element (12) carried by the support and operatively associated, in use, with the flexible cable, the mobile element being configured to be moved, as a consequence of an actuation of the gas cock, between a rest position and a working position, in which the mobile element bends the flexible cable (8) forming on it at least one loop ( 18); - the switch device comprising an electrically insulating body (20), a movable cursor (21) slidably housed in the insulating body between an open switch position and a closed switch position, and an electric switch (22) housed within the insulating body and comprising at least one fixed contact (23) and a movable contact (24) operatively associated with the movable cursor (21); - the flexible cable (8) having a first end (25) configured to be connected integral with the movable cursor (21) and a second end (26), opposite to the first, configured to be connected integral with the support (11) of an organ end actuation (10d) of the series of actuation members; characterized by the fact that, in combination: i) - both the fixed (23) and mobile (24) contacts are brought together by the insulating body (20) in a mutually facing position, the mobile contact (24) being configured to remain normally away from the fixed contact (23) and to cooperating with the movable slider (21) to be pushed against the fixed contact (23) when the movable slider moves to the closed circuit-breaker position; ii) - the switch device (9) comprises at least a pair of elastic contrast elements (27) carried integrally by the insulating body (20) and configured to push the movable cursor (21) towards the open switch position, in which the contact movable (24) is not pushed by the movable slider against the fixed contact; iii) - the flexible cable (8) is configured to be housed passing through the insulating body (20), aligned with a translation direction (A) of the mobile cursor (21) and interposed between the at least one pair of elastic elements (27), which flank it from opposite sides. 2. Control device according to claim 1, characterized in that the elastic contrast elements consist of a pair of helical springs (27) arranged parallel to the direction (A) of translation of the mobile cursor (21) and in such a way that respective axes symmetry of the helical springs (B, C) and of the flexible cable (D) lie on the same first plane (α), coinciding with a plane of median longitudinal section of the insulating body (20); inside the insulating body, the axis of symmetry (D) of the flexible cable coinciding with the direction of translation (A) of the mobile cursor (21). 3. Control device according to claim 2, characterized in that said helical springs (27) are arranged packaged, each, between a first end (28) of the movable slider and a bottom transverse wall (29) of a cavity internal (30) of the insulating body, which cavity houses in use the movable cursor (21), the helical springs (27) and a portion (31) of the flexible cable (8) immediately adjacent to its first end (25); said bottom transverse wall (29) being arranged towards a first end (32) of the insulating body, opposite the movable slider (21). Control device according to claim 3, characterized in that the helical springs (27) are each fitted to a respective stem (33) projecting axially and cantilevered from the first end (28) of the movable slider and towards the first end of the insulating body; the movable slider (21) being constituted by a block of electrically insulating material crossed, in use, by the flexible cable, which is housed / housed in a longitudinal groove (34) of the movable slider arranged transversely to the helical springs (27) and on the first floor; the first end (25) of the flexible cable being restrained against a second end (35) of the movable cursor, opposite the first end of the movable cursor, by means of a shoulder element (36) fixed integral with the first end (25) of the cable flexible and which cooperates in contact against a front face of the second end (35) of the movable slider. Control device according to any one of the preceding claims, characterized in that the insulating body (20) of the switch device comprises a substantially parallelepiped cup-shaped body (37) provided with a lateral access opening (38) and a closing cover (39) of said lateral mouth, removably coupled to the cup-shaped body, which delimits inside a cavity (30), closed in use by the lid (39), which cavity is configured to house said movable slider (21) ( 29) of the cavity of the cup-shaped body and between which springs (27) the flexible cable (8) is interposed in use flanked on its opposite sides and parallel to it by the helical springs; the mobile slider (21) being configured to be passed through by said first portion (31) of the flexible cable, which is housed in use within a longitudinal groove (34) of the movable slider oriented transversely to the helical springs (27) and to the mouth lateral (38) and open towards the lid (39); the latter delimiting a longitudinal slot (40) for accessing the cavity of the cup-shaped body arranged facing the longitudinal groove (34) of the mobile slider; a second transverse bottom wall (41) of the cavity of the cup-shaped body, opposite the first, presenting a transverse groove (43) open towards the lid and parallel to and aligned with, the longitudinal groove (34) of the movable slider, the which transverse groove (43) is configured to be passed through the first end (25) of the flexible cable and faces the longitudinal slot (40) of the cover, so that the flexible cable (8) can be coupled to the movable cursor (21 ) from the outside of the insulating body (20) by inserting it into the cavity (30) of the cup-shaped body and into the longitudinal (34) and transverse (43) grooves through the longitudinal slot (40) of the cover. 6. Control device according to claim 5, characterized in that said cup-shaped body (37) is laterally provided, on the opposite side to said side opening (38) and in a position adjacent to the movable cursor, with a connector (45) " Rast 2.5 ”made integral with the cup body and with said electrical switch; the cup-shaped body (37), the lid (39) and the movable slider (21) having been made by molding in a synthetic plastic material and the movable contact (24) and the fixed contact (23) being constituted by fixed metal sheets integral, internally to the cavity (30) of the cup-shaped body, to a side wall (46) of the cup-shaped body provided externally to the cavity of the cup-shaped body of said connector (45) "Rast 2,5"; the movable contact (24) being elastically flexible towards the fixed contact, above which it extends cantilevered and in a remote position in undeformed conditions, and both contacts (23,24) being connected integrally with respective foil connectors (47); which are integrated in said “Rast 2,5” connector (45). Control device according to any one of the preceding claims, characterized in that the switch device (9) and said plurality of actuation members (10) have been pre-assembled on the flexible cable (8) to form a unit (49). ) configured for direct assembly on respective gas taps (4) of a domestic cooking appliance. Control device according to any one of claims 1 to 6, characterized in that the switch device (9), the said plurality of actuating members (10) and the flexible cable (8) are configured to form a kit ( 50) for quick assembly directly on a domestic cooking appliance. Control device according to any one of the preceding claims, characterized in that said insulating body (20) is provided, in correspondence with one of its first ends (32) facing away from the movable slider (21) and externally to the body insulator (20), of a sliding and snap fastening device (51) for a first (10a) of said actuation members. 10. Domestic cooking appliance (2) comprising: - a plurality of gas burners (3), - a plurality of spark plugs (6) associated with respective gas burners (3), - a plurality of gas taps (4) to regulate the flow of gas supplied to the respective gas burners (3), and - a control device (1) according to one or more of the preceding claims arranged to close an electric power supply circuit (7) of the spark plugs (6) during the operation of each of said gas cocks (4). 11. Switch device comprising an electrically insulating body (20), a movable cursor (21) slidably housed in the insulating body between an open switch position and a closed switch position, and an electrical switch (22) housed within the insulating body and comprising at least one fixed contact (23) and a movable contact (24) operatively associated with the movable cursor (21); characterized by the fact that, in combination: i) - both the fixed (23) and mobile (24) contacts are brought together by the insulating body (20) in a mutually facing position, the mobile contact (24) being configured to remain normally away from the fixed contact (23) and to cooperating with the movable slider (21) to be pushed against the fixed contact (23) when the movable slider moves to the closed circuit-breaker position; ii) - the switch device (9) further comprising at least one elastic contrast element (27) carried integrally by the insulating body (20) and configured to push the movable cursor (21) towards the open switch position, in which the movable contact (24) is not pushed by the movable slider against the fixed contact.