Classifications

• • 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
  • B63H9/1078—Boom brakes
• • 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
• • 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

Definitions

• the present invention relates to an arrangement for a sailing boat which exhibits a pivoting boom and which is so arranged as to restrict the rapid pivoting movement of the boom in conjunction with the use of the same primarily when sailing before the wind in the intended direction of sailing of the boat.
• a large number of different solutions are available, which are intended to attempt to solve the problem when sailing with the wind arriving directly from astern, that is to say in the intended direction in which it is wished to sail.
• a common problem when sailing so that the wind arrives directly or at an angle from astern i.e. when running before the wind, arises if the wind suddenly changes direction and/or if one is sailing in heavy seas, or if another vessel causes large waves into which one sails.
• the dynamic sequence when executing a gybe is actually as follows; when the direction of the wind passes the centre line of the boat, the top part of the sail moves across first. The rest of the sail then follows together with the boom if the latter is not guyed. As the boom passes the centre line, it accelerates and travels at the speed of the wind until it is stopped by a sheet or rigging.
• the aforementioned object is achieved by means of an arrangement in accordance with the present invention, which is characterized essentially in that there is connected between the boat and the boom a brake that is formed from at least one strap and a strap-locking reel of the car safety belt type, which performs the function of braking the strap in the event of its rapid tensile actuation and also provides automatic winding-up of the strap onto a reel, and which strap-locking reel is so arranged, in the event of rapid actuation and pivoting of the boom, as to brake the continued unwinding of the strap from the reel, thereby retaining the boom and preventing it from pivoting back over the boat again.
• Fig. 1 shows a perspective view of a sailing boat comprising means to be provided with an arrangement in accordance with the present invention
• Fig. 2 shows the arrangement in a position in which it is installed on a boat and a boom
• Fig. 3 shows a longitudinal view of an attachment component for the attachment of the arrangement to the deck
• Fig. 3A shows an example of an attachment element
• Fig. 4 shows the attachment component in the transverse sense
• Fig. 5 shows a first example of the attachment of the arrangement
• Fig. 6 shows a second example of the attachment of the arrangement
• Fig. 1 shows a perspective view of a sailing boat comprising means to be provided with an arrangement in accordance with the present invention
• Fig. 2 shows the arrangement in a position in which it is installed on a boat and a boom
• Fig. 3 shows a longitudinal view of an attachment component for the attachment of the arrangement to the deck
• Fig. 3A shows an example of an attachment element
• Fig. 4 shows the attachment component in the transverse sense
• FIG. 7 shows a view from above of a sailing boat and its arrangement in accordance with the invention, with the boom illustrated in position respectively when running before the wind and with a braked gybe;
• Fig. 8 and Fig. 9 show further examples of the attachment of the arrangement, and
• Fig. 10 shows an example of a double brake of the car safety belt type.
• the aforementioned brake 1 is formed by a strap 10 and a strap reel 11 that are of the car safety belt type and which exhibit the function of being able effectively to brake the strap 10 in the event of its rapid tensile actuation.
• the arrangement 1 is also so arranged as to bring about automatic winding-up of the strap 10 onto the reel 11.
• the aforementioned strap-locking reel 11 is thus so arranged as to brake the continued unwinding of the strap from the reel 11 in the event of its rapid actuation in a direction outwards 12 from the same and in the event of the pivoting movement of the boom 3 laterally 4,5 about a supporting mast 13 situated in front of the boom 3.
• the boom 3 is retained, and its continuing pivoting backwards over the boat 1 is prevented, in this way.
• the effect of attaching the arrangement to the deck, for example, in the centre line 14 of the boat, and of attaching the strap 10 to the boom 3, is that the strap 10 runs out with the boom 3 in conjunction with sheeting.
• the strap 10 is then reeled in and locked when acceleration starts in conjunction with the boom 3 passing the centre line 14, as shown in Fig. 7.
• this takes place when the boom 3 passes the end positions I and II as shown in Figs. 8 and 9 and their attachments 30 1 and 30 11 .
• the arrangement and its brake 1 can be applied and attached in various ways, for example in accordance with what is indicated below.
• the strap-locking reel 11 is preferably of a kind such that it rolls up the strap 10 with the help of a spring, and that locking of the strap in the intended locked position is achieved by means of elements of a previously disclosed kind in the car safety belt industry functioning through acceleration when the strap is subjected to a sudden load.
• the strap-locking reel 11 can, for example, be connected and attached in such a way that it is supported by the boom 3, while the strap 10 is then attached to the deck 9 or some other fixed part of the boat 2.
• the strap-locking reel 11 can alternatively be connected and attached in such a way that it is supported by the boat 2, while the strap 10 is then attached to the boom 3.
• the attachment 15 of the strap 10 to the boat 1 is detachable, for example by means of a spring-actuated connection means of a previously disclosed kind, for example a hook or a remotely actuated connection. This preferably functions in the same way as the connection to a car safety belt functions.
• the strap-locking reel 11 can be supported in such a way that it is capable of being detached from the attachment point to which it is attached, for example in the same way as a spring-actuated connection, a hook or similar, which can be readily disconnected simply by depressing a button on the coupling, for example, as in the case of a car safety belt, for example.
• Figs. 1 and Figs. 4-5 in the drawings show that the attachment of the brake 1 is capable of being actuated in such a way that it is connected to a single attachment point, for example to a fixed stay 30, 30 1 and 30 11 , or that it is connected in such a way that it is capable of being displaced between pairs of end positions I and II in an essentially horizontal direction 16, 17.
• a rod 18 or some other rail-like element can be so arranged as to be attached to the deck 9 or some other attachment on the boat transversely to the longitudinal direction 19 of the boat, for example by means of a bolted joint 20.
• a coupling part 21 attached to the strap 10 or the reel 11 is arranged along the aforementioned preferably straight rod 18 in such a way as to be capable of displacement to the intended locked positions SI, SII, which are preferably common with the end positions I and II of the rod.
• These locked positions SI, SII are arranged at the respective ends 18A, 18B of the of the rod and the attachment points 2A, 2B to the boat 2 and can be formed, for example, by angled end parts 22, 23 of the rod 18.
• Fig. 4A An example of a fixed attachment 30 is illustrated in Fig. 4A. This is intended to be attached centrally in the boat 2, but can also be arranged, as shown in the drawings, on the respective sides of the boat. In this case the attachment point for the arrangement 1 is changed manually depending on the direction of the wind and on how it is wished to set the sail.
• Fig. 10 in the drawings shows an example of a double brake 101, which permits pairs of straps 110/210 to be supported permanently on board the sailing boat.
• the straps 110; 210 it is possible in this case to cause the straps 110; 210 to be permanently attached to the boat in question or to disconnect the strap 110 or 210 that it is not wished to use for the time being, but which it may be wished to be able to connect readily, should the need arise, depending on the position to which the boom on the boat is pivoted.
• the preventer guy with two interconnected reels 111; 211, each for its own strap 110; 210, the need to intervene in the boat in order to transport the lower attachment point from one side of the boast to the other side of the boat is avoided.
• the respective strap 110; 210 is instead attached from the double reel 111; 211 respectively to the port and starboard railing.
• the existing gunwale moulding, chain plate or cleat can then be used as attachment points in the first instance.
• the axes 150; 250 of the respective reels 111; 211 are parallel with one another and are situated side-by-side at a mutual distance A from one another.
• the double brake 101 is appropriately attached to the boom with the help of a suitable attachment device that is accommodated in a matching hole 151 in a centrally situated body plate 152.
• the various parts of the strap-locking reel may be enclosed in a cover, and a shock-absorber may be included in the arrangement .
• the invention is naturally not restricted to the embodiments described above and illustrated in the accompanying drawings. Modifications are possible, in particular with regard to the nature of the various parts, or by the use of equivalent technology, but without departing from the area of protection afforded to the invention, as defined in the Patent Claims .

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• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Sustainable Development (AREA)
• Sustainable Energy (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Ocean & Marine Engineering (AREA)
• Emergency Lowering Means (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

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Family Applications (1)

Country Status (2)

Citations (5)

• 2004
  • 2004-11-30 SE SE0402920A patent/SE0402920D0/sv unknown
• 2005
  • 2005-03-07 WO PCT/SE2005/000329 patent/WO2005087585A1/en active Application Filing

Patent Citations (5)

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