| 摘要 |
PURPOSE:To easily and safely perform engaging work of a hanging metal fixture to an engaging hook in a boat side even at stormy weather, by mutually connecting a pair of hanging metal fixtures, which lifts a boat hung from a pair of cradles, with a connecting rod. CONSTITUTION:Hanging metal fixtures 5 are suspended from a pair of cradles 1 and mutually connected by a connecting rod 6 equipped with a shock absorbing member 7. When a boat 8 is collected, firstly falls 2 are lowered under the sea level to hook hanging metal fixtures 13 in a side of the boat 8 in a suitable position of the fall 2. Then under this condition if the fall 2 is hoisted, the fixture 13 is moved along the fall 2 and engaged to the fixture 5. Then if the fall 2 is further hoisted, the rod 5 intrudes into hooks 4 of the cradles 1 to safely further surely support the boat 8 to the cradle 1. |
