| 摘要 |
PURPOSE:To prevent the sudden starting accident of a vehicle by providing a switch which is interlocked with a control device and preventing the establishment of the starting circuit or stopping circuit of an engine when the control device is in an incomplete operating condition. CONSTITUTION:A primary relay 21 can be operated when a circuit from the negative electrode of a storage battery, to a main brake contact 11 or a sub- brake contact 12, to the parking contact 13 of an AT lever, to the contact sprig 22 of the self-holding contact 16 of the primary relay 21, to a contact spring 23, to a key contact 1, to the primary relay 21, and to the positive electrode of the storage battery 31 is established. In this condition, at first, the starting of an engine can be carried out. After the primary relay 21 is operated, since the contact spring 22 is broken, no interference in circuit takes place even if the making/breaking of each contact 11-13 is arbitrarily repeated in an ordinary operating condition. |
