Mistral Windsurfing Ag

Mistral Windsurfing Ag of Grindelstrasse

Ernstfried Prade

Joachim Adamek

Hans Fichtner

Siegfried Pertramer

The invention relates to a rig for a windsurfing board in which the clew (8) of the sail (2) prior to tensioning and trimming of the sail (2) is fixed in location in a stern fitting (10) of the wishbone boom (3). The stationary fixing can either be done preprogrammed with the aid of a scale, whereupon the wishbone boom (3) is fixed to the mast in that it is pushed downwardly from above and engaged, or a fixed point is established which holds the clew (8). In this embodiment the trimming of the said (2) is made in the bow fitting (11) in that the connection (15) between the mast (1) and wishbone boom (3) is constructed in such a manner that the mast (1) is displaceable longitudinally to and fro with respect to the wishbone boom (3) and lockable.

Rig for a windsurfing board

The present invention is with respect to craft such as surfboards and more specially sailboards made up of a board body of synthetic resin foam and with a synthetic resin shell and having fittings such as a daggerboard case, mast foot sleeves or sockets, connection points for foot straps, skegs etc. The sailboard is made up of a base element having all the fittings on it. The top part of a skin-compatible, flexible light-weight synthetic resin or plastic is fixed on the base element. All mechanical forces are taken up by the base element while the greater part of the buoyant volume is formed by the top part. The top part may more specially be so designed that it may be taken off the base element and an other one put in its place.

Sailboard and a process for producing the same

A footloop for a windsurfing board having a deck with a top surface. The footloop is formed of a strap having opposite ends attached at the ends to the top surface of the board, including a device for attaching at least one of the ends to the deck which includes a releaseable mechanism for holding an end portion of the strap until a certain amount of force is exerted on the strap, whereupon the strap is released. The releaseable mechanism is adjustable for differing amounts of force and includes a fixed member permanently affixed to the board, a moveable member co-acting with the fixed member for holding the end portion of the strap and an adjustable device for locking the moveable member relative to the fixed member until the certain amount of force is exerted on the strap.

Footloops on surfboards

A mast foot for sail boards having a universal joint for connection of the mast through the mast foot, with the sail board hull. The universal joint is joined up by way of a middle pin forming part of a bearing unit, which is designed to be fixedly joined to the hull. The middle pin is furthermore able to be moved, together with the universal joint, in relation to the rest of the bearing unit against the force of a spring in a direction generally normal to the deck of the sail board. The spring may be adjusted with respect to the force produced by it acting against upward motion of the middle pin. The bearing unit can be joined with the sail board hull in a sleeve by way of a turning joint like a bayonet connection.

Growing community of inventors

Weilheim, Germany

Ernstfried Prade