| 摘要 |
<p>This tank cap (100) is provided with an outer body (1), and a leaf spring (2) attached to the outer body (1), and when the outer body (1) is turned, a plate part (2P) extending from the leaf spring (2) moves along a slope part (Ts) on the tank (fuel tank (T)) side. The rigidity of the leaf spring (2) when an operator grasps the outer body (1) and begins to turn it in the "closed" direction is different from the rigidity when grasping the outer body (1) and beginning to turn it in the "open" direction.</p> |
