BUTTON SWITCH Russian patent published in 1995 - IPC

FIELD: electrical engineering. SUBSTANCE: button switch has drive 3, case 1 in which base there are made holes 2. Central hole locates guiding part of drive 3 performing longitudinal reciprocating motion between initial and working positions, contactor 4 and contacts 5 placed outside of case and penetrating inside case through other holes of base. Contactor is fabricated in the form of ring or cylinder from current conductive material put on guiding part of drive, its contacts are made in the form of plate from belt-springy material and their ends are bent inside central hole up to contact with guiding part of drive in initial position. Plunger structure of switch makes it possible to eliminated rattling of contacts as they are continuously separated with insulating guiding part. EFFECT: enhanced reliability of button switch. 1 dwg