Contact assembly and mounting structure for cross bar selector switch
AssigneeTelefonaktiebolaget L M Ericsson
InventorsBror Ludvig Lundkvist, Sven-Erik Lindeberg, Karl Sievert Forsberg
Life of this patent
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Abstract
Arrangement in a selector, especially in a crossbar selector, comprising a number of contact spring sets arranged parallel to each other in a contact frame, wherein the contact spring sets, when operated, make contact with a contact multiple common to the sets. The contact springs are provided with elongated transverse contact surfaces and the contact multiple is made up of rod-shaped contact elements which are transversally attached to conductors. The conductors run across the contact frame parallel to the contact surfaces of the contact springs.
Claims4
In a selector switch comprising a plurality of contact springs having transverse contact surfaces thereon, and a contact frame mounting said plurality of contact springs therein, wherein the improvement comprises:
- a plurality of contact strips, each of said plurality of contact strips comprising a conductor mounted in said contact frame near said contact surfaces of at least some of said plurality of contact springs and extending parallel with said contact surfaces, and a plurality of rod-shaped contact elements mounted on said conductor in a direction transversely of said contact surfaces of said some of said plurality of contact springs;
- and said contact frame comprises means for mounting said plurality of contact strips therein, said means comprising a plurality of first notched sections, each of said plurality of first notched sections having a groove which is open in a direction towards said contact surfaces mounted directly therebelow, and a plurality of second notched sections, each of said plurality of second notched sections having a groove which is open transversely to the direction of the grooves of said first notch sections, whereby said conductors of said contact strips are contained in said grooves of said first and second notched sections which accommodates said conductors after said conductors have been directed thereto.
Dependencies are inferred from the claim text.