| 摘要 |
PURPOSE:To prevent generation of irregular current, by making the contact enclosed from the ambience OFF when the oilfiller hole is closed and making the contact ON when the port is opened, by a switching member. CONSTITUTION:On condition when a filler cap 1 is installed at a locker cover 2, the upper birm of an inner housing 36 is depressed by the bottom of the filler cap 1 against a spring 3b, and a magnet 3g parts from the contact of a lead switch 3d, making the lead switch 3d OFF. On the contrary, when the filler cap 1 is removed, the inner housing 3b is pushed up by the spring 3h, and stopped at the position of a stopper 3i. As a result, the magnet 3g contacts the lead switch 3d, making the lead switch 3d ON. Therefore, in an ordinary condition when the filler cap 1 is installed, no irregular current flows and an overdischarge of the battery or the like can be prevented. |
