FR2501616A1 - Catamaran type sail board - has boards connected by lightweight webbing structure locating sail with wishbone rigging - Google Patents

Abstract

The sail-board uses two runners or boards connected by a lightweight structure in alloy or composite material. The arrangement permits the mounting of the wishbone. The runners have an assymetric shape in plane with a tapered pointed nose, having a form which promotes planing whilst being made from unsinkable material. The runners may also have a plane keel promoting stability, and the connecting structure may be of semi-rigid trampoline construction in a closed mesh or grating form dissipating wave action. The craft may be carried on the roof of a car on racks.

Description

DESCRIPTION
BEACH EQUIPMENT WITH FREE VELIC PROPULSION.

The invention is intended for nautical leisure. Its design allows pra
windsurfing tick to anyone normally constituted, without entry
excessive and with maximum security.

- To date, windsurfing presented in the form of "windsurfing",
share its instability of form and the significant physical efforts to provide,
is limited, in its use, to young people, very sporty and
particularly well trained, excluding with a few tests, the majority
of middle - aged people attracted by this new nautical sport.

- Other attempts have been made from mono naltic boats,
block or dismountable whose excessive weight does not allow or with difficulty their
handling by one person and makes it almost impossible for their trans
ports on the roof of a car, thus depriving the very many possessions
sisters of caravans.

The part connecting the two hulls being in one piece, the boat risks
capsize under the effect of a wave hitting or lifting it at this point.

Finally, the shape of the immersed floats directly derived from the oe-
tamarans retrieves the primary vocation which windsurfing.

The invention is made stable by the use of two asymmetrical sliders.
ques separated, and connected by a light structure. Al-shaped sliders
, not submerged, have a profile in their parts in contact with water
very flat, approaching windsurfing boards, and actually allowing
sailing surfing. The maneuverability of the machine is ensured by a
fin plan, a rear spoiler and a tapered front, slightly tulip-shaped,
avoiding the machine to bake in the wave and all contributing to a
good ascent to the wind.

The light alloy or oomposite materials structure supports the mast base
articulated and covered with a net trampoline or grating leaving
the passage to water when crossing waves in heavy seas and avoiding
so much the reversal due to its resistance. The user, standing, finds
its place on the net from where it activates the free wing via
a "wishbone", his feet resting on a naturally anti-drag surface
pante.

Three sail surfaces are provided in order to be adapted to the canacities phy--
of people attracted to this new sport, with no age limit.

The machine, due to the materials used and due to its design is
weighing less than 35 kg and may drop below 30 kg, the
making it particularly suitable for handling by one person. Of
plus, its external dimensions, less than 4 meters by 1.3 meters
allow it to be conveyed on the carrying bars of an automobile without
other accessory.

Its implementation time remains similar to that of a windsurfing board
classic.

- Drawing 1/1 shows the general shape of the invention, subject to modifications.
fication in the scales, the principle of the beach craft remaining the meee.

- The machine is composed of two sliders (1) in polyethylene, laminate or ma
similar unsinkable materials, keeping it on the surface of the water (glis
sisters not submerged.

The structure (2) in light alloy or composite materials connects the two glides
sisters and is embedded in the material composing them ensuring its rigidity.

It supports the movable mast foot (9) and the tramPoline (3), made of
tight mesh net or grating where the operator gets dirty in position
upright, to maneuver the sail (8) through the "wishbone" (10).

The flattened shape (7) offers surfing possibilities identical to the plan-
ches à voile, or even superior in certain cases where the swarmed surface is
dininuate. The fin plan (4) and the fin (5) provide the assembly with
good road stability and maneuverability.

The bow (S) raised and slightly tuliped allows a good passage to the blade
and avoids stuffing in it.

The invention, in industrial operation, will give the possibility of making the practice of a sport in full expansion available to as many people as possible.

Claims (3)

1 - The invention is characterized by the use of two  sliders linked by a light alloy structure or  composite materials allowing the attachment of a wing  "wishbone" type ensuring the propulsion of the machine. 2 - As a consequence of 1, the asymmetry of the sliders is charac  terized in that it has a tapered portion forming  the bow or bow and opposite, a planing shape, the  all made of unsinkable materials. 3 - According to 1 and 2, the sliders are characterized by the fact  they are not submerged and present a drift plan  longitudinal allowing the machine a good ascent to ve 4 - According to 1, the structure connecting the two sliders is  terrified by the fact that it is semi-rigid, and composed  its surface of a trampoline made of mesh or grating  avoiding the overturning of the machine under the effect of a vagu 5 - The machine is characterized in that it must be able to be tran  carried on the roof of a motor vehicle through  carrier bars sold exclusively in stores  any other adaptation.