EP3868642A1 - Sail manoeuvring system - Google Patents

Sail manoeuvring system Download PDF

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Publication number
EP3868642A1
EP3868642A1 EP21153818.6A EP21153818A EP3868642A1 EP 3868642 A1 EP3868642 A1 EP 3868642A1 EP 21153818 A EP21153818 A EP 21153818A EP 3868642 A1 EP3868642 A1 EP 3868642A1
Authority
EP
European Patent Office
Prior art keywords
sail
sheet
overturning guide
respect
boom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP21153818.6A
Other languages
German (de)
English (en)
French (fr)
Inventor
Daniele MINGUCCI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stramba Srl
Original Assignee
Stramba Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stramba Srl filed Critical Stramba Srl
Publication of EP3868642A1 publication Critical patent/EP3868642A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B63B15/0083—Masts for sailing ships or boats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/08—Connections of sails to masts, spars, or the like
    • B63H9/10—Running rigging, e.g. reefing equipment
    • B63H9/1085—Boom vangs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B63B2015/0016—Masts characterized by mast configuration or construction
    • B63B2015/0025—Bipodded masts, e.g. A-type masts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/08—Connections of sails to masts, spars, or the like
    • B63H2009/082—Booms, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/08—Connections of sails to masts, spars, or the like
    • B63H2009/086—Connections of sails to masts, spars, or the like by sliders, i.e. by shoes sliding in, or guided by channels, tracks or rails; for connecting luffs, leeches, battens, or the like to masts, spars or booms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/08—Connections of sails to masts, spars, or the like
    • B63H2009/088—Means for tensioning sheets, or other running rigging, adapted for being guided on rails, or the like mounted on deck, e.g. travellers or carriages with pulleys

Definitions

  • the present invention relates to a sail manoeuvring system.
  • the invention has been made with particular reference to the boats with overturning of the sail by sliding along a path with specular symmetry, preferably U-shaped, preferably upturned.
  • the invention is particularly applicable for manoeuvring a mainsail.
  • said sail means any device for capturing the wind that is deformable in order to follow this overturning path. Therefore, purely by way of non-limiting example, said sail comprises any sail made of fabric or the like, including those with a wing profile, and semi-rigid sails, comprising for example rigid sectors that are movable together.
  • the sail preferably has an asymmetrical cross-section.
  • the object of the present invention is to partially overcome the problems of the known art.
  • a preferred object of the present invention is to provide a system for adjusting the angle of incidence of a sail with respect to the wind direction for a rig with a U-shaped overturning path of at least one sail.
  • the present invention relates to a boat comprising at least one hull (2) and at least one rig (5), wherein said rig comprises at least one sail slidingly fastened to an overturning guide, where the overturning guide defines a sliding path between two operating positions that are specular between them, said sail has two ends that are opposite in the sliding direction and specular, characterized in that said rig comprises:
  • the rig comprises at least one operating clew point on each boom/vang element that can be activated and deactivated to fix at least one sheet for adjusting the angle of incidence of the sail. More preferably, at least one sheet is provided for each end.
  • the activation preferably comprises engaging the sheet in the operating clew point after it has been intercepted by the sail in its sliding toward an operating position, where the point of interception is a point of the sail proximal to the overturning guide while the operating clew point is a distal point.
  • each boom/vang element comprises an end for the fastening to the overturning guide, where the operating clew point is distal to the luff end.
  • each operating clew point comprises a sheet hooking element capable of receiving the sheet dragged by the dragging element.
  • each hooking element preferably has a seat with a passage oriented to receive the sheet coming from the point of interception, and the sheet has a ring that can be inserted in said seat that is dragged so as to be hooked.
  • said dragging element comprises a hook that is open towards the clew point and the hooking element comprises a hook that is open towards said dragging element so that the two hooks join to form a closed seat for the ring of the sheet.
  • the ring of each sheet is retained elastically with respect to the overturning guide, and the interception takes place in a position other than one of the two operating positions of the sail.
  • each sheet is coupled to the overturning guide by means of an elastic loop surrounding said guide.
  • the sheet comprises a rope, an inextensible ring and an elastic loop, where the inextensible ring is interposed between the other two and the elastic loop surrounds the overturning guide.
  • the sail comprises at least a portion of canvas or the like stretched between the boom/vang elements.
  • each boom/vang element comprises a side fastened to the overturning guide in at least two consecutive points in the sliding direction by means of at least two carriages, and a sheet interception and guiding side inclined with respect to the fastened side. On this inclined side, for example, the sheet can slide after it has been intercepted.
  • the invention relates to a sail manoeuvring system for a boat according to any one of the preceding claims, characterized in that it comprises:
  • a wind-powered boat is shown, indicated as a whole with the reference number 1.
  • the boat 1 comprises a hull 2 and a rig 5, comprising in turn a sail 10 and a mast 15, which supports the sail on the hull.
  • the hull 2 can be of any type, possibly even a catamaran, and identifies with its shape a forward direction indicated by the arrow X, as well as a symmetry plane P parallel to this direction.
  • the mast 15 has a first and a second section 30, 32 projecting upwards from the hull, preferably they are substantially straight.
  • a third section 34 joins the tops of the first and the second section, and is shaped so as to form a continuity of the extension direction of the entire mast.
  • the shape of the mast is that of an inverted U-shaped bipod.
  • the mast has a distance between the first and second section 30 and 32 such as to embrace all or most of the hull 2.
  • the mast 15 acts as an overturning guide 35 to guide the sail 10 slidingly along its own extension line, preferably along the "entire" extension line.
  • the overturning guide 35 is in particular present in each of the three sections 30, 32, 34 and is continuous in the passages between them, so that the sail 10 can be overturned by sliding between two operating configurations that are specular with respect to the symmetry plane P.
  • the line S in Figure 2 indicates the sliding direction.
  • the operating configurations are those in which the sail is supported by the first or second section 30, 32, ( Figure 1 ) while the transition configuration between them is the one in which the device is to pass at the joining section 34 ( Figure 2 ).
  • the sail 10 is preferably a mainsail that has a longer side 40 fastened to the mast, an opposite side 42 called leech, and two opposite ends 45 in the sliding direction S, called feet.
  • the luff side in general is preferably slidingly hooked to the mast by means of a series of carriages 7 ( Figure 1 ).
  • the luff is preferably along the entire side, i.e. from foot to foot.
  • the overturning guide 35 for example, comprises a channel, then a bas-relief of the mast, or a rail, then a high-relief projection of the mast.
  • the fastening can take place for example by means of a series of carriages 7 ( Figure 1 ) distributed longitudinally along the entire luff side and sliding in the channel or on the rail.
  • the mainsail generally has a symmetry plane H orthogonal to the overturning guide 35 so that its ends 45 are specular.
  • the sail 10 generally comprises a wind capture surface 20 which, thanks to the overturning described above, always remains facing the plane P in each of the two specular operating configurations permitted by the mast.
  • the sail 10 generally comprises two rigid elements 48 at the ends 45, pulled in opposed manner to keep the sail taut between them. Between the two rigid sections, the sail preferably comprises at least one section of canvas or the like 21.
  • the rigid elements are preferably extended substantially from the luff side to the leech. The tension is carried out by means of one or more ropes, called halyards 49 ( Figure 2 ).
  • the rigid elements 48 are slidingly fixed to the overturning guide so as not to tilt in the sliding direction S. In the shown example, their fixing takes place through two or more carriages 7 for fastening the sail 10 to the guide 35.
  • the rigid elements 48 are elements which summarize the functions normally performed by two elements, namely the boom and the vang, and are therefore referred to in the following as "boom/vang elements".
  • the boom stiffens the end of the sail, and the vang pulls the boom to tension the leech.
  • the sail 10 can be rotated around the longitudinal extension line of the mast so as to be able to adjust the angle of incidence with respect to the direction of the wind as needed. This means that in both operating positions the leech 42 can be moved towards or away from the symmetry plane P. Such operations are also called hauling and easing the mainsail.
  • the rig 5 comprises a sail manoeuvring system 50.
  • the manoeuvring system in general preferably comprises a pair of sheets 52, one at each of the operating positions of the sail.
  • the sheets are hung on the mast 15, for example at fixed or elastically movable points.
  • Each sheet 52 preferably comprises a rope 54, an inextensible ring 56, and an elastically extendable loop 58.
  • the engagement is a progressive operation that includes intercepting the sheet by the sail and its fixing to the operating clew point.
  • the engagement begins during the approach of the sail 10 to one of the operating positions as explained below.
  • the sail 10 slides until it reaches a height of interception "HI" with respect to the hull in which it penetrates in the elastic loop 58 and abuts against its bottom.
  • This is possible since this loop is a U hooked to the overturning guide 35 at points 3 between which the sliding path defined by it runs, so that the loop surrounds it like a tunnel. During the sliding, therefore, the sail is forced to meet the bottom of the loop 58.
  • the point of the sail where it abuts against the bottom of the elastic loop 58 is called the point of interception PI and is generally proximal to the overturning guide.
  • the height of interception HI is such that the sail 10 must still continue to slide to reach the operating position towards which it is heading, and therefore, thanks to the elasticity of the loop 58, it drags it along with it up to this position without detaching it from the overturning guide.
  • the inextensible ring 56 is the inextensible ring 56, made for example with a chord. Thanks to the elasticity of the loop 58, the inextensible ring can be dragged away from the overturning guide 35 to reach an operating clew point 60 on the relative boom/vang 48 ( Figure 3 ).
  • the operating clew point 60 is the point where the rope is retained with respect to the boom/vang in such a way that the sail can be hauled and eased 10. In general the operating clew point is a fixed point of the sail 10.
  • the dragging of the inextensible ring 56 from the point of interception PI to the operating clew point can be carried out for example by means of a carriage 70, for example sliding along the lower edge 67 of the boom/vang 48.
  • the carriage 70 comprises a dragging hook 72 which picks up the inextensible ring 56 at the point of interception PI.
  • the two hooks 62 and 70 cooperate to form a seat for trapping the inextensible ring 56 ( Figure 4 ).
  • the inextensible loop 56 and the elastic loop 58 can have a common portion 59, where this portion is caught in the hook 62 and must necessarily be inextensible.
  • the elastic loop generally also comprises partially elastic loops, for example because they have portions of elastic attachment to the overturning guide 35 and/or to the inextensible ring, or because they have elastically movable points of attachment to the overturning guide.
  • the elastic loop 58 has rigid portions, just as it is not excluded that the inextensible ring is rigid or partially rigid instead of chord.
  • the movement of the carriage 70 towards the operating clew point 60 can be generated automatically by the descent of the sail from the height of interception HI to the operating position.
  • a cable 74 supported by the boom/vang 48 is provided.
  • the cable 74 has one end fixed to the carriage and the opposite end fixed to a sliding block 76 sliding along the overturning guide 35 until the sail reaches the height of interception HI.
  • an element for stopping 78 the sliding block is provided ( Figure 5 ).
  • the cable 74 is tensioned and pulls the carriage towards the operating clew point 60 by means of a system of pulleys 80.
  • the latter allows the cable 74 to bend to reverse its pulling direction.
  • pulleys 80 fixed to the boom/vang 48, where at least one pulley 80a is positioned in such a way that the operating clew point 60 is between it and the point of interception PI.
  • the mast 15 may comprise a second sail guide 90 placed at its top, and spaced horizontally and towards the aft with respect to the first guide 35.
  • the second guide 90 is preferably a support for the sail, which rests on it in the passage configuration at the joining section 34.
  • fastening as used in the present invention is to be understood as a general term indicating any type of fixing of the sail to the overturning guide 35, for example it contemplates both the case in which the sail (for example by means of carriages 7) is inserted into an internal channel of the guide, and the case in which it is hooked to an external rail.
  • boom/vang as used in the present invention is to be understood as a general term that indicates any type of stiffening element of the end of the sail fastened to the overturning guide so as to slide with respect to the latter without tilting in the sliding direction, for this purpose it is for example a plate fastened by means of at least two consecutive carriages 7.
  • each sheet hangs from the overturning guide, i.e. the mast, waiting to be intercepted by the sail, and when this happens the sheet is dragged towards the operating clew point 60.
  • the sheet or the hooking thereof do not have elasticity to be dragged by the mainsail towards the operating position, or the carriage 62 can be moved with a system other than the cable.
  • the characteristics described can be separated and made independent from each other. For example, it is possible to have a sheet with a rope and an inextensible ring dragged towards the operating clew point without the presence of an elastic loop but in the presence of a different abutment of the sail.
  • the term “comprising” and its derivatives, as used herein, are intended as open-ended terms that specify the presence of declared characteristics, elements, components, groups, integers and/or steps, but do not exclude the presence of other undeclared characteristics, elements, components, groups, integers and/or steps.
  • the above also applies to words, which have similar meanings, such as the terms “comprised”, “have” and their derivatives.
  • the terms "part”, “section”, “portion”, “member” or “element” when used in the singular can have the double meaning of a single part or a plurality of parts.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Tents Or Canopies (AREA)
  • Toys (AREA)
EP21153818.6A 2020-02-19 2021-01-27 Sail manoeuvring system Withdrawn EP3868642A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102020000003359A IT202000003359A1 (it) 2020-02-19 2020-02-19 Sistema di manovra di una vela

Publications (1)

Publication Number Publication Date
EP3868642A1 true EP3868642A1 (en) 2021-08-25

Family

ID=70480726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21153818.6A Withdrawn EP3868642A1 (en) 2020-02-19 2021-01-27 Sail manoeuvring system

Country Status (3)

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EP (1) EP3868642A1 (it)
IT (1) IT202000003359A1 (it)
MA (1) MA53941A (it)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010103377A1 (en) * 2009-03-09 2010-09-16 Seagate S.R.L. Sail system
WO2017178913A1 (en) 2016-04-13 2017-10-19 Stramba S.R.L. Rig for a nautical means
WO2019092533A1 (en) 2017-11-07 2019-05-16 Stramba S.R.L. Sail with a wing profile, rig for wind propulsion means comprising said sail and related wind propulsion means
WO2020031053A1 (en) * 2018-08-10 2020-02-13 Stramba S.R.L. Sailing boat comprising an inverted u-shaped mast

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010103377A1 (en) * 2009-03-09 2010-09-16 Seagate S.R.L. Sail system
WO2017178913A1 (en) 2016-04-13 2017-10-19 Stramba S.R.L. Rig for a nautical means
EP3442856A1 (en) * 2016-04-13 2019-02-20 Stramba S.r.l. Rig for a nautical means
WO2019092533A1 (en) 2017-11-07 2019-05-16 Stramba S.R.L. Sail with a wing profile, rig for wind propulsion means comprising said sail and related wind propulsion means
WO2020031053A1 (en) * 2018-08-10 2020-02-13 Stramba S.R.L. Sailing boat comprising an inverted u-shaped mast

Also Published As

Publication number Publication date
IT202000003359A1 (it) 2021-08-19
MA53941A (fr) 2021-08-25

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