FR2579557A1 - Inclinable, adjustable mast for all types of boats and craft moved by the wind - Google Patents

Abstract

Inclinable and steerable mast for all types of boats and craft moved by the wind. The invention consists essentially of a device allowing the sail-carrying mast 1 to be inclined. Adjustable arrangement while the said craft is being manoeuvred by the driver, whatever the medium on which (or in which) it is moving. The device consists of an additional two-legged support 2A 2B fastened, at its lower part, to two rails 16, the mast resting on a movable shoe 3; the assembly can be adjusted in various ways making it possible to obtain adjustable and controlled inclination of the mast. 1. Adjustment takes place by displacement of one or both feet of the two-legged support 2A 2B, the mast foot 7 being then fixed but articulated via a vibration damper 4. 2. Adjustment takes place by displacement of the mast foot 7 on the shoe 3, the two-legged support 2A 2B being fixed but articulated by vibration dampers 5A 5B and 6A 6B. The main applications may relate to sailing boats, whether they are single or multihull, land yachts and all craft moved by the wind.

Description

 The subject of the present invention is, as a new product, a device capable of considerably increasing the efficiency of a wing on a machine moved by the force of the wind to increase its speed, whatever the nature of the plan of evolution. of this craft.

 The field of presentation adapted in this description will be that of the pleasure sailboat equipped according to the invention with the device allowing the tilt of the mast carrying the sail, adjustable during the evolution of the boat.

 In a conventional rig all the masts are fixed and guyed, only the windsurf board has an adjustable mast, having to be held permanently by the windsurfer.

 Some masts can be tilted a few degrees by means of a set of wedges or other inconvenient systems and almost impossible to adjust during navigation.

 The device according to the invention makes it possible to remedy these drawbacks and to obtain an adjustable and controllable mast during the evolution of the boat.

 This device is remarkable in that it comprises a particular rigging, rigging and rigid and removable stay, adjustable mast foot, which makes it possible to obtain, according to the gaits, very appreciable results and to overcome all the drawbacks of a conventional rigging.

 According to a characteristic of the invention, the mast consists of a mast type windsurfing with a single sail. rigid and removable rigging is ensured by a bipod assembly, this being integral with the mast, the base being fixed on two mobile carriages of the listening rail type making it possible to tilt the mast towards the rear of the boat, and the '' orient to port or starboard using sheets with return pulleys controlling the distance movement of the carriages as their locking in position using cotceurs cleats (not shown in diagrams).

 According to another characteristic of the invention, the mature woman is distorted to receive a large sail and a jib.

The mast having the same characteristics as the single sail mast previously mentioned except that it is of larger size, having to receive a sail of larger surface, the rigid and removable stay being always ensured by the assembly bipod. The rigid forestay to receive the jib is fixed at the base in a hull root at the front of the boat, the top of the rigid forestay being fixed to the mast by a mobile assembly like sheet rail.

 According to another characteristic of the invention, the mast foot rests on a shoe provided with an arc-shaped rail allowing the mast to be tilted towards the rear of the boat without having to resort to the adjustment of the bipod system, it remains fixed. The mast foot is adjusted using sheets with return pulleys and locked in position using cleat cleats (not shown in diagrams).

 According to another characteristic of the invention, the connections between the mast and the bipod assembly, the rigid forestay as well as the mast base, are respectively constituted by vibration dampers made of rubber elastomer.

 An embodiment of the invention is described below by way of indication and in no way limitative with reference to the accompanying drawings.

 Figure I is a schematic perspective view according to the invention of the mast for single type of sail.

 Figure 2 is a schematic perspective view according to the invention for a type of mast with large sail and jib.

 Figure 3 is a large-scale detail view of Figure I.

 FIGS. 4 and FIG. 5 are large-scale perspective views of the rigid stay.

 FIGS. 6 and FIG. 7 are schematic views representing said invention on a sport trimaran with the mast inclined towards the rear of the boat and on starboard tack.

 Figure 8 is a schematic perspective view according to the invention with single sail type rigging adapted on a sport trimaran.

 Figure 9 is a schematic perspective view according to the invention for the type of mast with mainsail and jib, adapted on a pleasure yacht of the catamaran type.

 Figure 10 is a schematic perspective view according to the invention for the type of mast with mainsail and jib, adapted on a pleasure yacht of the monohull type.

 It is clear from FIGS. 1 and 2 that the structure and the principle according to the invention of the steerable rigging with the bipod system, the rigid forestay as well as the adjustable mast foot.

 Figure I shows the whole mast for a single type of sail mast, the mast (I) can be a conventional windsurf mast. At the base a vibration damper (4) in rubber elastomer secured to the mast foot (7) in the shape of a tenon coming to fit on the yoke (8) the whole being fixed by screws (I2). The movable yoke (8) secured to the rail (9) in the form of an arc itself fixed on the shoe (3). This device making it possible to tilt the mast towards the rear of the boat using sheets with deflection pulleys making it possible to control the tilt and the blocking in position by means of catching cleats (not shown in diagrams), this principle of sheets and cleats being specific to all types of boats.

 The bipod assembly (2A) (2B) serving as rigid guying consists of a hollow light alloy spar equipped at each end with vibration dampers made of rubber elastomer at the base (5A) (5B) and at the top ( 6A) (6B).

 The detail in FIG. 3 explains the system for fixing and locking the bipod assembly (2A) (2B) on the mast (I) by means of the stirrup (in). The assembly consisting of a simple push down the stirrup (io) which is anchored on the part (II) integral with the mast. Locking in position will be ensured by the entire system such as a mooring end passed to a cleat (I3) or a pin, etc.

 At the base of the bipod assembly (2A) (2B) two vibration dampers (5A) (5B) according to detail in Figure 3 ending in a lug (I4) adapted to the carriage (I5) of the listening rail (I6) the whole being fixed by the axis (I7) held at the end by a swivel (not shown in diagrams).

The adjustment being made using sheets making it possible to tilt the mast and to orient it to port or starboard, as well as to block it in position, the principle being identical to the system of tilting the mast (I) previously cited.

 Figure 2 shows the mast for mainsail and jib, the bipod assembly (2A) (2B) and the mast foot (7) are identical to the mast system for single sail figure I, only the stirrup (IO) is fixed to the mast (I), this being larger. A mainsail halyard is incorporated inside the mast (not shown) identical to a conventional mast fitted to all types of boats.

 The rigid stay consists of a hollow spar in light alloy (I7) consolidated by two cables (I8 A) (I8 B) secured at the top by the part (I9), at the base by the part (20) adjustable by the intermediary of two via (21) acting as turnbuckles in order to be able to tension or release the two capable (I8 A) (I8 B), the cable (18 A) receiving the carabiners of the jib, the cable (18 B) serving to compensate for the forces caused by the jib on the spar (I7), at the two ends of the rigid stay two vibration dampers made of rubber elastomer at the base (22) at the top (23).

 FIG. 4 shows in detail the system for fixing the base of the rigid forestay, the yoke (24) integral with the vibration absorber (22) comes to fit on the post (25) held by the axis (26) receiving at the end a swivel (not shown), the tenon (25) being fixed on the bridge at the front of the boat in the position of a traditional forestay.

 FIG. 5 shows in detail the high position of the rigid forestay, as well as the mast fixing system (I), the eye lug (27) integral with the vibration damper (23) comes to be adjusted on the yoke (28) sliding on a rail (29) integral with the mast (I) the assembly being held by the axis (30) receiving at the end a swivel (not shown).

 The pulleys (31) (32) fixed on the parts (I9) (20) are intended to receive the jib halyard (not shown) incorporated inside the spar (I7), the cable (I8 A) receiving the carabiners (33) of the jib (34) in figure 9 and figure 10.

 At the end of the mast (I) according to FIG. 10 a bracket (35) provided at each end with a pulley (36) receiving a halyard (37) allowing after adjustment in position of the mast (I) to pull the rigid stay at the mast.

 According to Figure 9 and Figure IO the cable (I8 A) can by its design receive a jib furler.

 In accordance with the invention, the combination of vibration dampers and rails makes it possible to obtain a rigid, mobile stay, causing no constraint on the orientation of the mast.

Vibration dampers made of rubber elastomer ensuring the mechanical connection.

 Figure 6 and Figure 7 very schematically show the invention with the mast (I) tilted towards the rear of the boat in Figure 6 and on starboard in Figure 7. This position is ideal for drop and downwind gears considerably accelerating the speed of the boat compared to a boat under the same speed with a conventional rigging.

 According to Figure 6 it is clear that the sail becomes lift as shown by the arrows PV - FI - F2.

The vélique thrust PV is broken down into a propelling force FI and a lifting force F2, from where a very important acceleration.

 It should therefore be noted the importance of being able to orient a mast during navigation.

 The present invention has been described by way of explanation.

and is not limited to the single form shown in the diagrams.

 Any application of the principles mentioned in the present invention would be covered by the present patent in the non-limited fields of a machine moving indifferently on water or on land and moved by the force of the wind.

Claims (5)

 I) Device for tilting and adjusting the mast of a sailboat and all wind-driven vehicles, characterized in that the adjustment is made during the evolution of the boat or of the vehicle. Device characterized in that the orientable rigging consists of a bipod system attached to the base and movable on two rails.  2) Device according to claim I characterized in that the mast foot is placed on a shoe provided with an arc-shaped rail for adjusting the inclination of the mast.  3) Device according to claim I characterized in that the rigid and removable stay is sliding on the mast via a movable rail.  4) Device according to one of claims 2 to 3 characterized in that the ends of the bipod system as well as the mast foot and the ends of the rigid stay are respectively constituted by vibration dampers made of rubber elastomer.  5) Device according to any one of the preceding claims, characterized in that said invention is adaptable and not limited to all vehicles moving indifferently on water or on land and moved by the force of the wind.