Lifting keel for sporting sail boats
OwnerJurgen Guido, Norbert Binzerinventors
Life of this patent
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Abstract
A lifting keel assembly for sailboats having a shaft obliquely inclined in forward and upward directions slidably receiving the lifting keel, 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 having on either side a protruding V-profile, and the associated guide enclosing said two V-profiles of the sliding shoe, while a further sliding shoe on the other edge of the keel is guided in an associated guide by two oppositely arranged sliding surfaces.
Claims22
A lifting keel assembly for a sailboat, comprising:
- a keel having forward and rearward longitudinal edges;
- a shaft for receiving said keel within the sailboat;
- a first sliding shoe on the upper portion of one of said longitudinal edges of said keel, said first shoe having two sides with protruding V-profiles;
- a second sliding shoe on the upper portion of the other of said longitudinal edges of said keel;
- a first prismatic guide along the interior of said shaft, said first guide having opposing guide surfaces in an inner double V-profile corresponding to the protruding V-profiles of said first sliding shoe, said guide surfaces enclosing and limiting forward, backward and sideways movement of said first shoe;
- and,
- a second prismatic guide along the interior of said shaft, said second shoe being received between two opposing surfaces on said second guide.
A lifting keel assembly for a sailboat, comprising:
- a keel having forward and rearward longitudinal edges;
- a shaft for receiving said keel within the sailboat;
- a lifting means for lifting said keel into said shaft;
- a first sliding shoe on the upper portion of one of said longitudinal edges of said keel, said first shoe having two sides with protruding V-profiles;
- a second sliding shoe on the upper portion of the other of said longitudinal edges of said keel, said second sliding shoe having two oppositely arranged sliding surfaces;
- a first prismatic guide along the interior of said shaft, said first guide having opposing guide surfaces in an inner double V-profile corresponding to the protruding V-profiles of said first sliding shoe, said guide surfaces enclosing and limiting forward, backward and sideways movement of said first shoe;
- and,
- a second prismatic guide along the interior of said shaft, said second shoe being received between two opposing plane sliding surfaces on said second guide.
Dependencies are inferred from the claim text.