| 摘要 |
<p>The system has a locking unit (30) arranged on a gear cover (20), and a locking releasing unit (60) including a push element displaced for pushing locking rods (40, 50) or an element, which is connected with the push element for retracting the rod towards the cover for releasing the locking state. A connection unit connects the push element and a push button (70) such that the push element is displaced in a direction opposite to a push direction, when the push button is pushed. The rod includes slopes (41, 43a, 51) formed on one of contact surfaces of the rod and the push element.</p> |
