초록 ▼

An adjustable roller furling spar includes an elongated base member which is securable on a sailboat and an adjustable periphery assembly which is attached to the base member and coextends a distance therewith. The periphery assembly is adjustable to define an effective winding cross-section of the

An adjustable roller furling spar includes an elongated base member which is securable on a sailboat and an adjustable periphery assembly which is attached to the base member and coextends a distance therewith. The periphery assembly is adjustable to define an effective winding cross-section of the spar which is variable along the longitudinal extent thereof and which is operable for windingly receiving a sail on the spar. By properly adjusting the periphery assembly, it is operable to compensate for irregular stretch in older sails when the spar is used for reefing so that even a badly stretched sail can be maintained in a substantially flat disposition.

대표청구항 ▼

An adjustable roller furling spar for a sailboat comprising: a. an elongated substantially rigid spar base member rotatably securable on said boat; b. adjustable periphery means attached to said spar base member adjustably defining the effective winding cross section of said spar at a plurality of p

An adjustable roller furling spar for a sailboat comprising: a. an elongated substantially rigid spar base member rotatably securable on said boat; b. adjustable periphery means attached to said spar base member adjustably defining the effective winding cross section of said spar at a plurality of points spaced along substantially the entire longitudinal extent thereof; c. means for securing a sail to said spar; and d. means for rotating said spar base member and the periphery means attached thereto and for adjustably securing them in a selected rotated position.