| 摘要 |
PROBLEM TO BE SOLVED: To prevent a person from forgetting a key left in a car after the use of the car who bring in a plurality of keys to a car and use them in his round. SOLUTION: A current controller 6 is inserted to either one of wire of an engine start circuit of a car. On the other hand, a key control panel 7 having the same number of switches 16, 16 as that of the cylinder locks 10, which is driven for switching by the rotation of a lever mounted to the inner cylinder 13 of each cylinder lock 10, is arranged next to the current controller 6. All switches on the key control panel 7 are connected in series and this is connected in parallel with the current controller 6, respective keys 17 are inserted to all the key holes of the cylinder lock 10, and after the rotation to a predetermined angle of the inner cylinder of each cylinder lock 10, a current controller 6 is opened, and the engine start circuit is placed into a standby state for the engine-start. |
