SWITCH Russian patent published in 1994 - IPC

FIELD: electrical engineering. SUBSTANCE: invention relates to low-voltage electric equipment. Switch has case 1 manufactured from insulation material, stationary contacts 2 anchored on current-carrying elements 3 in case 1, self-aligning contact bridge 4 with lug 5, U-shaped part 6 with bent protrusion 7 with hole 8 in it, spring 9, driving mechanism 10 with lever 11 and axle 12, rectangular recession 13 made in outer side of case 1 having arc-shaped convex cylindrical surface 14, second pair of stationary contacts 15 anchored on current-carrying elements 16. Contact bridge 4 has two pairs of contacts 17 and 18. Hole 8 has arc-shaped bearing protrusions. Intermediate spacer 20 in the form of washer with rectangular hole is mounted between bent protrusion 7 of U-shaped part 6 and contact bridge 4. Lug 5 of contact bridge 4 coupled with one end to spring 9 of mechanism 10 is passed through above-mentioned hole. EFFECT: enhanced reliability of switch. 2 cl, 3 dwg