초록 ▼

A sail arrangement having a hollow flexible boom with a short stiffener rod disposed therein near the forward end, and a stiffener tube which may be moved along the exterior of the boom. The flexible boom provides both automatic sail positioning and the spilling of excess wind during sudden strong g

A sail arrangement having a hollow flexible boom with a short stiffener rod disposed therein near the forward end, and a stiffener tube which may be moved along the exterior of the boom. The flexible boom provides both automatic sail positioning and the spilling of excess wind during sudden strong gusts. In a second embodiment, a pivoted rigid boom is controlled by an elastic cord. In a third embodiment, a spring assembly permits the mast to pivot to spill the wind during strong gusts.

대표청구항 ▼

A sail bicycle comprising: a bicycle; a mounting member attached to the frame of said bicycle; boom means attached to said mounting member and including resilient means for permitting varying amounts of controlled automatic sideward movement of a sail in response to the force of the wind; mast mount

A sail bicycle comprising: a bicycle; a mounting member attached to the frame of said bicycle; boom means attached to said mounting member and including resilient means for permitting varying amounts of controlled automatic sideward movement of a sail in response to the force of the wind; mast mounting means attached to said mounting member; a mast attached to said mast mounting means; and a sail attached to said mast and to said boom means, said sail being disposed with its center of effort substantially aligned in a vertical plane passing through the rear axle of said bicycle.