Abstract: A rotary electric switch 1 comprises a base 2 having a rotary actuator 3 mounted thereon, the base 2 including a pair of substantially parallel, spaced apart substrate layers 6, 7. Each layer 6, 7 has a first surface 9, 10 which faces the other substrate layer 7, 6 and a second surface 11, 12 which faces away from the other substrate layer 7, 6, the first surface 9, 10 of each layer having an electrically conducting contact 13, 14, 16 provided thereon. At least one of the substrate layers 6, 7 is deformable towards the other so as to effect an electrical connection between the contacts 13, 14, 16 on the two layers 6, 7, and the rotary actuator 3 includes a projection 21 which engages against the second surface 11 of said deformable substrate layer 6 so as to press it towards the other layer 7 in the immediate vicinity of the projection 21.

Abstract: A switch (1) comprises a elastomeric body (2) which includes a recess (3) formed therein for receiving a printed circuit board (4). The external periphery of the PCB (4) engages in an internal groove (6) so as to form a closed switch cavity (7) between the PCB an one end of the body, said one end of the body including a resiliently deformable portion (11) which is movable to bring a movable contact (13) into engagement with fixed contact (8,9) carried on the PCB (4) so as to establish an electrical connection therebetween. The body (2) includes an external groove (42) to mount the switch on a panel (40), and a seal is provided in the external groove (42) to prevent the ingress of water and the like to the recess (3) of the body (2).

Abstract: A switch 1 comprises an elastomeric body 2 which includes a recess 3 formed therein for receiving a printed circuit board 4. The external periphery of the PCB 4 engages in an internal groove 6 formed in the recess 3 so as to form a closed switch cavity 7 between the PCB and one end of the body, said one end of the body including a resiliently deformable portion 11 which is movable to bring a movable contact 13 into engagement with fixed contacts 8,9 carried on the PCB 4 so as to establish an electrical connection therebetween. The body 2 further includes an external groove 42 in its outer surface in which is engageable the outer periphery of a mounting hole 41 formed in a panel 40 in order to mount the switch on said panel 40, and a seal is provided in the external groove 42 to prevent the ingress of water and the like to the recess 3 of the body 2.