FR2638703A1 - Beach trimaran with internal passenger compartment - Google Patents

Abstract

Sports and leisure watercraft 3 to 4 metres long of the single brace trimaran type, rigged as a catboat using a sailboard rigging, characterised in that the inside of its central hull is designed to receive therein the helmsman, in that it is designed to be totally controllable from inside its central hull, and in that its transverse stability is independent of the weight and of the position of the helmsman, who therefore does not have to exert any so-called righting positions. Single plate.

Description

 The present invention relates to a recreational and sports vehicle suitable for use in nautical environments: lakeside or maritime.

 This craft moved by a sail, is of the trimaran type, that is to say that it consists of a central float, stabilized by two lateral floats.

 The device according to the invention is characterized by its cockpit located inside the central float. A seat, which is located approximately 60% of the length of the waterline measured from the bow, receives the coxswain at the bottom of the hull so that only his head, possibly his shoulders, exceeds the level of the deck . This particular position offers a grazing perspective of the water and provides amazing sensations of speed which are, with relaxation, the real purpose of this new machine.

A large opening is therefore made on the deck of the central float, above the seat to allow access to the coxswain.

 The control of the machine according to the invention is ensured by a spreader located inside the central hull, in front of the coxswain's seat, acting itself on the single rear rudder by means of a game preferably synthetic cables. The depth of the lifter, that is to say the distance which separates it from the seat, is adjustable so as to adapt to the size of the different helmsmen.

The latter therefore govern with their feet and therefore retain complete freedom from their hands. Each coxswain can therefore refine the adjustment of his / her leisure or go about his tourist occupations.

 The machine according to the invention is characterized by its cat-boat rigging (1 single boat) which uses a windsurfing rigging, with a wishbone, in order to simplify the use of the machine on the one hand, in a sou -ccis to lower its marketing price on the other hand. This rigging does not require guy lines. The mast is simply installed inside the central shell in a housing designed to receive it, crossing the central bridge through an orifice designed for this purpose.

This rigging is controlled by a rope brought back to the helm station. Extremely simple in its design and in its use, it frees the coxswain from the constraints usually imposed by maneuvers. The latter can then devote himself fully to racing tactics in the case of sporting use, or to relaxation in the case of leisure sailing.

The rigging and degeneration of the often tedious machine are now a matter of a few seconds since it is enough for the user to remove the listening control and to remove the mast from its root.

 The device according to the invention is unsinkable, as provided for by law.

Buoyancy volumes in expanded foam; placed in each float and in the central hull, they provide sufficient stability for: makeshift sailing, even when full of water.

 The machine according to the invention does not have a mobile fin, nor a drift well for the purpose of simplifying the maneuvers necessary for the operation of a sail machine. An anti-drift profile, which also serves as a grounding base, is simply included in the shape of the central float.

 The device according to the invention has a power, that is to say a capacity to carry the fabric predetermined by the volume of the lateral floats. The differences in speed due to the differences in weight of the coxswains, commonly observed in the case of monohulls or catamarans, especially in the breeze, are very attenuated, and thus highlight the tactical qualities of the coxswain in regatta.

This architectural feature allows children or neophytes to use the machine in the breeze without the risk of systematic capsizing, their weight or their address not being directly involved in the torque of the machine unlike almost all existing small sailing vessels.

Simply put, this boat does not require a coxswain position, even in the breeze.

 The device according to the invention has streamlined connecting arms. They are an integral part of the assembly and are molded at the same time as the other constituent parts of the boat. The construction material used will therefore be the same for all of the parts: hulls, decks, link arms.

Mass production involves the use of glass fiber / polyester resin stratification on a female mold. This type of construction is economical, reliable and fast.

 The device according to the invention allows the user to separate the lateral floats from the link arms in order to reduce the size of the boat and facilitate its transport. The device thus dismantled is transportable on the roof of an ordinary automobile.

 By way of nonlimiting example, the machine will have dimensions of the order of 3 to 4 m in length by 2 to 2.5 m in width. The diagram presented proposes a machine of 3.30m in length and 2.20m in width.

 The apparatus according to the invention is particularly intended for the rental of beach apparatus by specialized companies, by campsites and hotels having a body of water: it offers the advantages of a low purchase cost, low maintenance cost, great simplicity of use since it is not essential to be initiated to sailing or even to be sporty to make it fly on the water, very safe to sail due to its resistance to capsizing, and a source of pleasure and intense emotions as much for its speed as for its very low riding position on the water .

 The technical and economic advantages presented by the craft, associated with its very sporty aspect should allow it to be disseminated in sailing schools.

Claims (4)

 1) Recreational and sports nautical craft, of the single-arm trimaran type (3 hulls, 1 single link arm between these 3 hulls), characterized in that it comprises a windsurfing structure and in that the interior of its central hull is designed to receive coxswain, in that it is designed to be totally contr8ZabZe from the inside of its central hull, and in that its capacity to carry the canvas, that is to say, say its transversaZe stability, ensured by the volume @ of the lateral floats, is independent of the weight and the position of the coxswain.  2) Machine according to claim 1 characterized by an opening in the deck of its central hull, allowing access to the interior thereof and by a seat located inside the central hull, intended to receive the coxswain .  3) Machine according to claim 1 characterized by a control device by lifting beam moved by the feet of the coxswain, located inside its hull cen- -traZe in front of the coxswain's seat.  4) Machine according to claim 1 characterized by the use of a single link arm between its central hull and its lateral floats.