An electrical switch of dual in-line package type which includes a switch casing having a housing fitting over a base onto which contact leads forming switch sections of the switch are molded, actuators movably disposed in the corresponding switching sections for selectively connecting and disconnecting the contact leads, and a dust cover to fit over the housing. Each of the actuators has an actuating knob extending through the housing for moving the actuators between first and second positions to turn the switch section on or off, which actuating knob has notched portions which engage a projection formed in the dust cover for preventing erroneous function of the switch, while the base is initially divided into two blocks for subsequent welding to each other to achieve air-tightness and to facilitate assembling work of the switch.
A manually operated switch, typically of DIP size, having a slightly deformable over-center cam rotor journalled in a hollow housing. Symmetrical projections on the rotor move two opposed cantilever springs into and out of electrical contact. The deformation of the rotor provides detent action. Stops are not required. Single wiping action occurs upon closing the contacts. The cantilever springs may be ridged and of unequal length, or not ridged and of equal free length.
A switch arrangement on an electrical apparatus includes a base with two parallel rows of receptacles, a switch module held plugged in, in the base, in which the pairs of contacts together with a switch rocker form a rocker switch, and a cover fastened releasably on the base in one single possible fastening position, which on the inside of its end wall carries operating lugs for the rocker switches.
This is two embodiments of a sealed switch, one embodiment of which utilizes a plastic film which abuts the upper surface of the support portion and covers the upper edges of the walls defining the base and which is trapped between the upper edges of the walls defining the base and the cover portion forming a seal. The second embodiment utilizes a start button which comprises a disk like support which is formed of an elastomeric material that on assembly is trapped and squeezed between the upper edges of the walls defining the base and the cover portion forming a seal.
A dual in-line package (DIP) switch includes movable terminals and fixed terminals all of which are inserted in a wafer by insert molding. The two rows of terminals have terminal portions including contact portions. The terminal portions of the two rows are disposed substantially parallel to each other and spaced apart a given distance within a casing in such a way that the corresponding contact portions can either make or break contact with each other.
A switch assembly having an enlarged actuation surface and enhanced tactility is provided. The switch assembly may include a switch having a movable switch mounted within a recess. The actuation surface may be an elongate planar body loosely held within the recess and in engagement with the movable switch. A flexible protective cover may be provided over the recess, switch and actuation surface. The planar body increases the actuation area of the switch assembly without increasing the size, and accompanying cost, of the switch.
