| 摘要 |
Disclosed is a marine transfer device (10) having a ramp (18) which is connected at its inboard end to a stationary offshore platform (14) by a mount assembly (28) that allows the ramp to pivot about horizontal and vertical axes and restrains torsional ramp movement. The outboard end of the ramp (18) includes a landing pad (22) and support frame (26) which support the outboard end of the ramp on a ship's deck or similar surface when the transfer device is lowered into position by a crane or service derrick. A movable carriage assembly (20), which is located between the support frame (26) and the outboard end of the ramp (18), extends and retracts as the movement of the ship causes the support frame (26) to move away from and toward the ramp. Stairs (24) extend from the support frame to the ship's deck. The carriage assembly (20) provides a continuous, stable surface for the passage of personnel from the stairs to the ramp. A ball and socket joint (114 ), which connects the landing pad 22 to the support frame (26) eliminates the transfer of rolling and pitching motions from the deck to the carriage assembly (20) and ramp (18).
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