| 摘要 |
PROBLEM TO BE SOLVED: To structurally simplify and miniaturize a mechanism reliably setting to an opened state during fusion of a contact or the like by providing an auxiliary contact coming into contact with any one of a pair of main contacts. SOLUTION: An auxiliary contact part 43 constituting a switch mechanism for turning on/off a motor M by an operation lever together with a contact part 42 consists of an auxiliary contact 44 connected to a second fixed contact 20 and intervened between fixed contact pieces 62 of a main terminal B and a press holding part 45 thereof, and a lock part 55. To a motor when second movable contact 18 and a fixed contact piece 62 are conductive via the second fixed contact 20 and the auxiliary contact 44, after contacts are deviated by movement in Q1 direction of a slide part 16, brake is applied through connection of the first movable contact 17 and the first fixed contact 19. At this time, the auxiliary contact 44 moving in Q2 direction together by fusion between the second movable contact 18 and the second fixed contact 20 is deviated from the fixed contact piece 62, and supply of a power source E is interrupted. At the same time, a lock member 58 is engaged in a lock hole 51, and is locked. These mechanisms are integrally constituted.
|
