| 摘要 |
A portable landing ramp for boats which can be positioned manually has a walking plank having a first end secured to the boat by chains which support that end beneath the boat deck and thus reduce the angle of plank inclination, while a second plank end has foldable legs which are unfolded to extend to land to support the second end above the water, reduce the angle of inclination of the ramp, and add lateral stability to the ramp. A folding parallelogram hand rail assembly has braces in the upright position which support a pair of hand rails parallel with the plank to provide guidance while walking on the plank. The rear braces of the assembly are offset to position the first plank end away from the boat, and the chains extend around the outside of the rear braces to engage them and thereby reduce lateral movement of the plank. The chains and the assembly can be folded into channels in the plank and latched so that either hand rail can serve as a carrying handle for the ramp. The chain is secured to the boat by low profile clips which align the principal lines of force exerted through the chain with the strongest part of the clip.
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