| 主权项 |
1. A harpoon for anchoring capable of cooperating with an anchoring grid of a platform, the harpoon comprising:
a cylinder, a piston provided with a rod projecting out beyond the cylinder, the free end of the rod comprising an anchoring head in the grid and at least one anchoring finger deployable relative to the anchor head between a retracted position and an active position projecting outwards; a bistable actuator including a rod for actuating the or each finger, the actuating rod being movable between a retracted resting position allowing the retraction of the or each finger and an extended position of deployment of the or each finger, the bistable actuator comprising a tappet that is movable during a first impulse comprising a stroke in a first direction along an axis of movement, and then a stroke in a second direction opposite to the first direction, in order to cause the switch of the actuating rod from its retracted position to its extended position, the tappet being movable during a second impulse comprising a stroke in the first direction, and then a stroke in the second direction in order to cause the switch of the actuating rod from its extended position to its retracted position; wherein the actuator is configured so as to allow the return of the actuating rod to its retracted position when the tappet moves along the first stroke in the first direction during the second impulse. |
