초록 ▼

The invetnion proves for flattening a cambered flexible sheet, usually a marine sail, by rolling a supporting edge of the sheet, typically the luff of a sail, on a rotatable support member. Applied to a sail, the invention provides a bolt rope and tape which effectively attaches only an intermediate

The invetnion proves for flattening a cambered flexible sheet, usually a marine sail, by rolling a supporting edge of the sheet, typically the luff of a sail, on a rotatable support member. Applied to a sail, the invention provides a bolt rope and tape which effectively attaches only an intermediate portion of the luff to a rotatable stay member. A flexible material is also provided and this surrounds the stay member and extends over at least those portions of the luff which are not effectively attached to the stay member by the bolt rope and tape. When the sail is being reefed, that portion of the sail, which the bolt rope is attached to, is first wrapped around the stay member to reef the sail progressively in a flattening fashion.

대표청구항 ▼

In a marine sail, the combination of a sail body formed of flexible sheet material and having an elongated edge which includes an intermediate portion; first securing means extending along only said intermediate portion of the elongated edge to attach said intermediate portion to an elongated rotata

In a marine sail, the combination of a sail body formed of flexible sheet material and having an elongated edge which includes an intermediate portion; first securing means extending along only said intermediate portion of the elongated edge to attach said intermediate portion to an elongated rotatable support member, said first securing means being dimensioned to be placed substantially under tension when coupled between said intermediate portion of the elongated edge and the rotatable support member; and second securing means secured to said elongated edge and constructed and arranged to surround the elongated support member over at least those portions of the support member to which said first securing means is not effectively attached, and to embrace the elongated support member sufficiently loosely to initially allow free rotation therebetween, said second securing means being so dimensioned that, when the sail is attached to the rotatable support member by said first and second securing means, the rotatable support member is initially free to turn within said second securing means in those locations where the sail is not effectively attached to the support member by said first securing means, initial rotation of the support member then causing only said intermediate portion of the elongated edge of the sail to be rolled upon the support member while the support member turns freely within said second securing means in those locations where the sail is not effectively attached to the support member by said first securing means, continued rotation of the support member then being effective to roll said second securing means and, if desired, the sail body on the support member.