| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of part items to compose a mechanism in order to convert the regular and the reverse rotations of a DC motor, to facilitate the assembly, and to lower the cost. SOLUTION: The first and the second change-over contacts 51 and 52 are provided to a change-over lever 3, the first fixed contact 171 of the first motor terminal 17, and the second fixed contact 182 of the second motor terminal 18 are provided at one side in the operating direction of the change-over lever 3, while the second fixed contact 172 of the first motor terminal 17, and the first fixed contact 181 of the second motor terminal 18 are provided at the other side in the above operating direction. Furthermore, terminals 211 and 211 at one end side of a power source are provided at the lower side of the first fixed contacts 171 and 181 , while terminals 192 and 192 at the other end side of the power source are provided at the lower side of the second fixed contacts 172 and 182 , and the conversion of the regular and the reverse rotation is carried out by the first and the second change-over contacts 51 and 52 . |
