| 摘要 |
Craft having a wing (1), symmetrical according to a plane, connected at the top of a mast (2) by means of a flexible joint or a swivel and which is handled by means of a control bar (5) perpendicular to the wing under the latter, and comprising at its base a handle bar (7). The rotation of the handle bar allows to steer a boat having a center board (8). The mast is either fixed or movable rotating about an axis directed according to the longitudinal axis of the craft. The wing is comprised of two half wings which are not in the same plane. The wing may consist of a sailcloth stretched on an articulated armature which may be folded on unfolded like a parasol so as to bring together the sailcloth within a small volume about the handle (6) which is used to manoeuvre the sail, or on the contrary to stretch the sail cloth close to a plane perpendicular to the handle (5). The armature has essentially 3 bars (18, 19 and 20) and is kept open by means of a system including 3 small bars (24, 25 and 26) of which one end slides along the handle (5). The cloth (28) at the vicinity of the leading edge of the sail may be cambered by means of a lath (29) which bends at the opening. Applications: beach craft, sport and leisure boats, sail bicycle, delta-plane. |
