公开(公告)号：WO1986005316A1

公开(公告)日：1986-09-12

申请号：PCT/US1986000470

申请日：1986-03-07

Applicant: MECHANICAL ENTERPRISES, INC.

Inventor： MECHANICAL ENTERPRISES, INC. ,  TWYFORD, Robert, Hull

IPC: H01H01/06

CPC classification number: H01H1/64 ,  H01H1/029 ,  H01H1/242 ,  H01H13/12 ,  H01H13/52 ,  H01H2003/007

Abstract: A switch assembly (10) particularly suitable for electrical keyboard applications includes a pair of wire conducting members (14, 16) disposed in substantially collinear relationship on a supporting base (12). A pair of switch contact surfaces (66) project radially outward from the circumference of the wire conducting members (14, 16). In one embodiment, a cylindrical or tubular contactor member (68) surrounds conducting members (14, 16) and is spaced from and in facing relationship with the contact surfaces (66). The contactor member (68) is a closely-wound electrically conductive wire. The contactor member (68) is supported in spaced apart position by a resilient sealing sleeve or tube (70) which encloses the end portions includig the contact surfaces (66) of the wire conducting members (14, 16). A rubber-like spring member (18, 72) moves the sealing tube (70) and contactor member (68) into engagement with the contact surfaces (66).