| 摘要 |
<p>LIFTING KEEL FOR SPORTING SAIL BOATS A lifting keel for sporting sail boats having a shaft obliquely inclined in forward and upward directions slidably receiving the lifting keel and for guiding the same in the shaft, the upper area of the lifting keel being provided with sliding shoes on the forward and rearward longitudinal edges, which sliding shoes are guided in associated prismatic guides of the shaft, one sliding shoe being provided on either side thereof with a protruding V-profile, the shoe guide enclosing said two Vprofiles of the sliding shoe while a further sliding shoe is guided in an associated guide only by two oppositely arranged sliding surfaces.</p> |
