Sail
OwnerYamazaki YOICHIinventor
Life of this patent
Estimating the term…
Abstract
A sail 100 includes: a top outhaul 1; a bottom outhaul 3; a groove 4 extending perpendicularly and attachable to a groove portion 61 formed in furling gear 6; and two swelling portions 100a and 100b on both sides of the groove 4. When a sailboat is under sail, the swelling portions 100a and 100b are spread and usable in a following wind, while the swelling portions 100a and 100b are folded along the groove 4 and usable as a jib in a head wind or a beam wind. The top outhaul 1 and the bottom outhaul 3 are connected to the furling gear 6 and the groove 4 is attached to the furling gear 6, and thereby, the furling gear 6 furls and unfurls the swelling portions 100a and 100b.
Claims3
A sail used for sailing a sailboat, wherein:
- the sail is a single sheet corresponding to two right and left jibs hoisted in a front part of the sailboat;
- the sail includes a top outhaul 1, two right and left clew outhauls 2, a bottom outhaul 3, and a groove 4 formed on the perpendicular line between the top outhaul 1 and the bottom outhaul 3 and used for fastening the sail to furling gear;
- the sail is neatly folded with furled up by the furling gear arranged in the sailboat;
- the sail is substantially rhombic, is laterally spread in a following wind and is usable as a following-wind exclusive sail;
- and the sail is naturally neatly folded laterally in a head wind or a beam wind and is usable like a jib.
A sail used for sailing a sailboat, comprising:
- at least one top outhaul arranged in an upper-end part thereof;
- at least one bottom outhaul arranged in a lower-end part thereof;
- a groove extending perpendicularly on the line connecting the top outhaul and the bottom outhaul, the groove being attachable to a groove portion formed in furling gear provided in the sailboat;
- and
- two swelling portions arranged on both sides of the groove, wherein
- when the sailboat is under sail, the swelling portions are spread and usable in a following wind,
- when the sailboat is under sail, the swelling portions are folded along the groove and usable as a jib in a head wind or a beam wind, and
- the top outhaul and the bottom outhaul are connected to the furling gear and the groove is attached to the furling gear, and thereby, the furling gear furls and unfurls the swelling portions.
Dependencies are inferred from the claim text.