초록 ▼

Wind propelled apparatus employing a mast and a sail, in particular a windsurfer for boardsailing is provided with a first boom, rigged in the usual fashion, and also having a second boom of reduced length and span rigged below the first boom, for use by a child, simultaneously with an adult operati

Wind propelled apparatus employing a mast and a sail, in particular a windsurfer for boardsailing is provided with a first boom, rigged in the usual fashion, and also having a second boom of reduced length and span rigged below the first boom, for use by a child, simultaneously with an adult operating the first boom. This double boom rig permits a child to learn the sport, be it ice boating, skateboard sailing, or the preferred windsurfing, under truly live conditions, while overcoming the greatest, and virtually insurmountable problem of uphauling, when the spar and sail are hauled up out of the water into a sailing attitude. The sail window is extended downwardly, or a junior sail window can be provided at the appropriate height. The attachment of the second, small size JUNIOR (TM) boom can be effected by recessig the sail, or by use of a power clamp or power clamps to the spar or to the sail, or to both. In addition to providing first hand, realistic boardsailing, direct and effective communication between the child and the instructor is assured.

대표청구항 ▼

Wind-propelled apparatus comprising body means adapted to support a plurality of users, a main spar secured by a pivotal joint to the body means, and a sail and rigging therefor attached to the main spar; a master boom associated at the forward end thereof with said main spar and extending about sub

Wind-propelled apparatus comprising body means adapted to support a plurality of users, a main spar secured by a pivotal joint to the body means, and a sail and rigging therefor attached to the main spar; a master boom associated at the forward end thereof with said main spar and extending about substantially the full width of the sail for use in direct manual handling by a first user in sailing the apparatus, to control the operation of the sail; and a junior boom secured in supported relation at the ends thereof from the main spar and extending below said master boom on both sides of the sail for a major portion of the associated width of the sail, to permit the direct handling use of the apparatus by an additional, smaller person.