The present invention relates to an ignition switch (30) which is connected to the rotary shaft (11) of a cooker gas tap (10). The subject matter invention relates to an ignition switch (30) comprising a first contact member (60); a second contact member (50) which contacts with the end part (61) of said first contact member (60); and a tab (44) which is provided on the lateral surface of said hub (40) for changing the position of the first contact member (60) and which triggers ignition by being adjacent to this flexible front guide part (633), said ignition switch (30) is characterized by comprising at least one second tab (43) which is provided on the lateral surface (42) of the hub (40) which advances on said first contact member (60), in order to trigger the contact of the first contact member (60) to the second contact (50) for the ignition of the gas in a second gas cooking member.

An object of the present invention is to provide a switch mechanism to be adopted in an air-conditioning system that may be operated manually, which allows a plurality of functions to be integrated therein and assures superior operability for the driver.

Manual switch mechanisms 1 and 3 are dial type mechanisms each comprising at least a tubular dial component 4 with open ends on the two sides thereof, a first gear 5 that is fitted on the outside of the dial component 4 so as to rotate together with the dial component and includes gear teeth 5a formed at the outer circumferential side surface thereof and a second gear 6 that includes gear teeth 6a formed at a circular arc circumferential surface thereof to which the rotation of the dial component 4 is transmitted from the first gear 5 via a relay component 7 and is connected through a wire 20 to drive an air-conditioning door. Inside the dial component 4, a push-button switch mechanism that includes at least a sliding component 8 that is slidably housed along the axis of the dial component 4 and includes a push portion 11 located at the bottom thereof and substrate having a switch portion 10 to contact the push portion 11, is fitted within the dial component 4.

Device for controlling the gas-burner rings of a cooking surface including a gas tap equipped with a control knob and a catenary element for control of ignition of the gas-burner rings, the catenary element including a microswitch; the microswitch is actuated selectively by a bushing carried via snap action by an axially mobile element of the gas tap provided with said control knob, the bushing being made of a synthetic plastic material and including a sleeve for installation on said mobile element of the gas tap and a flange designed to bear upon said microswitch to actuate it as a result of a motion of translation of the mobile element of the gas tap; the bushing is internally provided with an indent and has a radial slit, which interrupts its continuity and in a corresponding angular position of which the bushing is also provided with a pair of opposed circumferential slots that interrupt the continuity of the indent.

L'invention concerne le domaine des joints souples d'étanchéité.

C'est un joint souple d'étanchéité comportant un trou (14) destiné à recevoir une tige, une partie centrale (11) située autour du trou (14), une lèvre extérieure (13) située autour de la partie centrale (11) et destinée à s'appuyer de manière étanche sur une surface sensiblement plane et sensiblement perpendiculaire à l'axe de la tige, et comportant aussi une partie intermédiaire (12) située entre le trou (14) et la lèvre extérieure (13), la partie intermédiaire (12) étant suffisamment massive pour transmettre des efforts parallèlement à l'axe de la tige et suffisamment déformable pour absorber des jeux mécaniques situés le long de l'axe de la tige.

Une application préférentielle de ce joint souple d'étanchéité concerne le domaine des robinets gaz pour four ou table de cuisson domestique.

The switch (20) comprises a casing (22) with a shaft (26) rotatable therein and an insulating carriage (66) rotatable with the shaft (26). A contactor (106) is mounted on and rotatable with the carriage (66) to a central OFF position and a series of circuit closing positions spaced both clockwise and counterclockwise therefrom. The contactor (106) is engagable with fixed contacts (122-125) mounted on an insulating terminal head (24). A vacuum valve (130) is operable by a cam (98) rotatable with the contactor. The valve includes stationary and moveable valve members. The stationary valve member has a vacuum source port and a vacuum utilization port (63). A third port is also provided. The movable valve member is moveable along a slideway on the stationary valve member. An elastomeric sealing member is received in a recess in the slideway and is formed with portions connected to the source and utilization ports. The moveable valve member has a valve surface which is slidable along the sealing member between first and second positions. The valve surface includes port structures for connecting the utilization port (63) to the source port in the first position of the moveable valve member, while connecting the utilization port (63) to the third port in the second position of the moveable valve member. As disclosed, the third port communicates with the atmosphere. The cam (98) has portions for moving the moveable valve member between its first and second positions in both directions, and other portions for locking the valve member against unwanted movement in various positions of the cam. The cam (98) coordinates the operation of the moveable valve member with the operation of the contactor (106).

The switch (20) comprises a casing (22) with a shaft (26) rotatable therein and an insulating carriage (66) rotatable with the shaft (26). A contactor (106) is mounted on and rotatable with the carriage (66) to a central OFF position and a series of circuit closing positions spaced both clockwise and counterclockwise therefrom. The contactor (106) is engagable with fixed contacts (122-125) mounted on an insulating terminal head (24). A vacuum valve (130) is operable by a cam (98) rotatable with the contactor. The valve includes stationary and moveable valve members. The stationary valve member has a vacuum source port and a vacuum utilization port (63). A third port is also provided. The movable valve member is moveable along a slideway on the stationary valve member. An elastomeric sealing member is received in a recess in the slideway and is formed with portions connected to the source and utilization ports. The moveable valve member has a valve surface which is slidable along the sealing member between first and second positions. The valve surface includes port structures for connecting the utilization port (63) to the source port in the first position of the moveable valve member, while connecting the utilization port (63) to the third port in the second position of the moveable valve member. As disclosed, the third port communicates with the atmosphere. The cam (98) has portions for moving the moveable valve member between its first and second positions in both directions, and other portions for locking the valve member against unwanted movement in various positions of the cam. The cam (98) coordinates the operation of the moveable valve member with the operation of the contactor (106).

A rotary switch assembly for use with a fuel burner valve having a user rotatable shaft. The switch has an annular sleeve which upon being received over the valve shaft is engaged to be rotated by the valve shaft. The rotor has a conductive contact ring frictionally engaging the rotor with inward projections on the ring frictionally engaging torque transmitting grooves formed on the rotor. The rotor is journalled on the switch base which has stationary contacts provided on opposite sides of the rotor. User rotation of the valve shaft causes the rotor to rotate and the wiper contacts complete a circuit between the stationary contacts.

First and second self-supporting sheet metal contact plates (104,106) are mounted in an insulating housing (12), in planes perpendicular to the axis of a driver (24) which is rotatable to a series of detented positions. The driver (24) carries first and second contactors (78a,78b) having first and second contact points (96,98) slidably engaging opposite sides of the plates while also having riders (90,92) engaging opposite sides of the first contact plate at all times. The driver (24) carries first and second coil springs (188,190) biasing the contactors (78a,78b) against the plates (104,106). The first and second plates have first and second sectors (120,122) with first and second radial edges (142,144) on opposite sides of a narrow gap (254,256) across which the points are movable at different radially spaced locations. The points break contact substantially simultaneously with the second edge whereby wear due to electrical arcing is distributed between the radially spaced locations. A third contactor (78c) is biased by the second coil spring (190) into sliding engagement with third and fourth contact plates for making and breaking another electrical circuit therebetween. A pinion gear on the driver meshes with and drives a gear rack on a linearly movable vacuum valve for performing vacuum switching functions. The contact plates are clamped between case and cover components of the housing. To facilitate assembly, the first and second plates are initially connected by a narrow temporary web (107,263) and have rectangularly bent flanges with interlocking hooks (330,332) remote from the web for strictly limiting relative movement of the plates. The third and fourth plates have a similar web and hooks.

This relates to a rotary switch assembly for a multiple work station machine wherein the work stations rotate and are sequentially presented to an operating position. There may be a high voltage and two low voltage switches with the switches being so constructed wherein electrical connections are made with each work station in timed relation to its presentation to the work position and for the required period of time.

A valve incorporated into apparatus for controlling rigidity of a vehicle seat includes a housing (26) defining a bore terminating in first and second counterbore ends (30,32) with a narrowed central portion (40) therebetween. A first port (42) through the housing (26) opens into the central portion (40), while a second port (46) opens into both counterbore portions (30,32) at or near the junction with the central portion (40). A two-piece resilient sealing member (80) is disposed within the bore (28), and has enlarged first and second ends (82,83) positioned in sealing contact within the counterbore portions to seal the bore (28). The sealing member (80) is also normally positioned in sealing contact with the junction areas to seal the central portion (40) from the counterbore portions (30,32). The sealing member (80) may be moved longitudinally within the bore (28) to move one of the enlarged portions (82,83) away from one of the junction areas to open a fluid flow path between the ports (42,46). Normally open electrical switches (102) are provided to be actuated upon longitudinal movement of the sealing member (80).

In a valve mechanism, a rotary actuator (36) is coupled to a rotary positioner (34) by means of an interface plate (20) having a rectangular centre aperture (22) and a pair of opposed elongated openings (28, 30) whose axis is parallel to the width of the centre aperture (22). The width (26) of the centre aperture (22) is substantially equal to the cross-sectional width of the rotary positioner (34) to be received therein, and the widths of the elongated openings (28,30) are substantially equal to the diameters of the fasteners (38, 40) which mount the interface plate (20) and thereby couple the rotary positioner (34) to the rotary actuator (36).