The present invention relates to an arrangement (100) for a sailing boat furling system, and for reception of or comprising an outgoing shaft (11) exposed to external torque loads. It comprises a furling drive unit (20) with a gear mechanism (22) and a motor unit (23) connected to an ingoing, motor, shaft (21) and a ratchet mechanism (10) comprising a locking functionality. The ratchet mechanism comprises a housing (17A,17B) and takes up the outgoing shaft (11). The furling drive unit (20) is connectable to ratchet mechanism (10) and is so arranged that the motor unit (23) will be located distant from the outgoing shaft (11), and it further comprises a control unit (30) arranged to control the motor unit (23) driving the ingoing shaft (21). The outgoing shaft can be switched between an engaged mode, in which the outgoing shaft (11), when exposed to external torque loads in a first direction, is allowed to rotate in an opposite, second, direction but prevented from rotating in a said first direction, hence protecting the motor unit and the gear mechanism (22) from external torque loads on the outgoing shaft (11) which are transferred to or taken up by the ratchet mechanism (10), and a disengaged mode in which the outgoing shaft (11) and the ingoing shaft (21) are allowed to rotate in both directions, by controlling, by means of the control unit (30), the movement of the ingoing shaft (21), and thereby, via the ratchet mechanism (10), the outgoing shaft (11) between being in the engaged mode and in the disengaged mode.

A vessel is provided with a mast, sail, and halyard for hoisting the sail. The sail includes dollies configured to be movable along the mast. The mast includes a guide member, the guide dollies configured to cooperate with said guide member, wherein the sail includes rigid panels, articulated two by two; the mast is equipped with a transit part positioned at the end of the guide member, which has a flared lower portion and is open at its opposite ends, wherein during hoisting of the sail, each dolly is received in the transit part and is guided along to leave it through its upper opening and cooperate with the guide member, while during its lowering, each dolly is disengaged from the guide member, is received in the transit part, moves along it, and escapes from it by following the movement of the portion of the sail with which it is integral.

A nestable wing sail having two or more sections. Where one section is configured to nest inside the first section, and can move out of the first section to extend the effective sail area of the wing sail.

The patent discloses a multihull watercraft with a unique hull configuration providing numerous benefits. Passenger cabins are enclosed within a separate upper hull, which allows the accommodation space and the float hulls to be independently optimized. The new configuration also provides reduced windage, and creates additional deck space for easier boarding, recreational use, and safer access to shore craft.

The invention relates to an at least partially wind-propelled ship, comprising a double airfoil mounted on a structure controlled angularly around a generally vertical axis depending on conditions, where the double airfoil comprises a fore flap and an aft flap at least one of which has a fore-to-aft asymmetry and separated by a slit, where each flap comprises a series of shape members distributed in height, wherein said structure comprises a fore mast and an aft mast connected by a boom member and by a gaff member.

The shape members of the fore flap are traversed by the fore mast while being able to turn around an axis defined thereby, while the shape members of the aft flap are traversed by the aft mast while being able to turn around an axis defined thereby.

In addition, the aft mast is twistable, the shape members of the aft flap are rotationally locked to said aft mast, and the controller is capable of acting on the bottom and the top of the aft mast.

The present invention relates to an arrangement (100) for a sailing boat furling system, and for reception of or comprising an outgoing shaft (11) exposed to external torque loads. It comprises a furling drive unit (20) with a gear mechanism (22) and a motor unit (23) connected to an ingoing, motor, shaft (21) and a ratchet mechanism (10) comprising a locking functionality. The ratchet mechanism comprises a housing (17A,17B) and takes up the outgoing shaft (11). The furling drive unit (20) is connectable to ratchet mechanism (10) and is so arranged that the motor unit (23) will be located distant from the outgoing shaft (11), and it further comprises a control unit (30) arranged to control the motor unit (23) driving the ingoing shaft (21). The outgoing shaft can be switched between an engaged mode, in which the outgoing shaft (11), when exposed to external torque loads in a first direction, is allowed to rotate in an opposite, second, direction but prevented from rotating in a said first direction, hence protecting the motor unit and the gear mechanism (22) from external torque loads on the outgoing shaft (11) which are transferred to or taken up by the ratchet mechanism (10), and a disengaged mode in which the outgoing shaft (11) and the ingoing shaft (21) are allowed to rotate in both directions, by controlling, by means of the control unit (30), the movement of the ingoing shaft (21), and thereby, via the ratchet mechanism (10), the outgoing shaft (11) between being in the engaged mode and in the disengaged mode.

A traction system for a watercraft, including a sail and a fixed station that includes a mast and a winch which is connected to the sail by a traction cable, the system further including a bottom part that is supported by the traction cable, and fold lines, each of which has an end that is attached to a leading edge of the sail, and another end that is supported by the bottom part. The fixed station includes a base that accommodates the bottom element when the sail is retracted by the winch; and structure for grasping each fold line and pulling same towards the mast so as to retract the leading edge against the mast and fold the sail once the winch has retracted same close to the station.

A furling and adjustment assembly for boat sails, includes a hooking device, configured to be mated to a coupling for the sail and to a tack sheet. The assembly also includes an actuation pulley assembly, configured to be actuated by an actuation rope and functionally associated with the hooking device in order to transmit, by way of the latter, a furling/unfurling movement to the sail. The hooking device and the actuation pulley assembly can be mutually moved between a condition of mutual engagement and a condition of mutual disengagement, so as to allow the adjustment of the tack point of the sail while a fixed spatial position of the actuation pulley assembly remains constant.

A roller assisted low friction reefing grommet that facilitates movement of a reefing line through the grommet. The roller assisted low friction reefing grommet includes a grommet ring having a roller therein that reduces friction of the line traveling through the grommet. A line channeling guide is formed within the interior of the grommet ring by a low friction material positioned on either side of the grommet, with a channel formed by the line channeling guide and the roller for receiving and guiding the reefing line.

An apparatus (100) for actuating a locking mechanism (12) of a locking sail track car (10) comprises a latch formation (116) disposed in a fixed position with respect to the track (14), a control surface (112) spaced from the latch formation (116) in a hoisting direction, and an actuator assembly (120) for attachment to the car (10). The actuator assembly (120) comprises an actuator (124) for operating a control member (24) of the car locking mechanism, and a latch element (158) connected to the actuator (124) and moveable between a first detent position in which the latch element (158) is not engageable with the latch formation (116) and a second detent position. The latch element (158) is arranged to cooperate with the control surface (112) upon movement of the actuator assembly (120) in the hoisting direction to set the latch element (158) into the second detent position, and is engageable with the latch formation (116) upon subsequent movement of the actuator assembly (120) in a loading direction with the latch element (158) in the second detent position. Engagement of the latch element (158) with the latch formation (116) fixes the actuator (124) in position with respect to the track (14) for operating the control member (24) of the car locking mechanism (12) upon subsequent movement of the car (10) in the loading direction, and urges the latch element (158) out of the second detent position and towards the first detent position such that subsequent movement of the actuator assembly (120) in the hoisting direction to disengage the latch element (158) from the latch formation (116) sets the latch element (158) back into the first detent position.