Switch array

A switch array (10) comprising a housing (12) having a front face (14), a rear face (16), and a plurality of through bores (18) extending from the front face to the rear face;

• a resilient switch card (30) having a front face (34) directed towards the rear face of the housing, a rear face (36) directed away from the housing, and a number of contact areas (38) on the front face associated with each one of the plurality of through bores (18) wherein the number and position of the contact areas associated with each one of the plurality of through bores (18) is identical;
• a plurality of switch caps (20) slidably mounted in, and removable from, respective ones of the plurality of through bores (18), the plurality of switch caps each having a front face (22) adjacent the front face of the housing, a rear face (24) adjacent the rear face of the housing, and one or more pins (28) projecting from the rear face of the housing that are unique in number and position, and wherein the one or more pins can exert pressure on one of the number of contact areas associated with one of the through bores on pushing one of the plurality of switch caps from a rest position;
• an electrical circuit board (32) mounted on the rear face of the resilient switch card and having an electrical circuit associated with each one of the number of contact areas such that when pressure is exerted on the one of the number of contact areas, an electrical signal is generated in the associated electrical circuit, and an enlarged pimple (40) for each one of the plurality of through bores (18) in the housing (12), formed on the front face (34) of the resilient switch card (30), and engageable with the rear face (24) of each of the plurality of switch caps when positioned in a corresponding through bore to bias each of the plurality of switch caps (20) away from the switch card (30).