FR2544274A1 - SAILBOARD TYPE BOAT USED IN TANDEM - Google Patents

Abstract

THE BOAT INCLUDES A CENTRAL BOARD 1 AND TWO SIDE FLOATS 2A, 2B JOINED BY BOLTING 35 OF TWO CROSS BARS 3. THE BOARD AND THE FLOATS HAVE FORMATS AND MATERIALS SIMILAR TO A CLASSIC BOARD. PLATE 1 INCLUDES A MATT REST 7A AND A DRIFTWELL 4A FOR USE AS A SINGLE, WITH OR WITHOUT FLOATS. TWO OTHER MAT 7B 7C STANDS AND ANOTHER 4B DERIVATIVE WELL IN BOARD 1 ARE USED IN TANDEM WITH OR WITHOUT FLOATS. EACH FLOAT 2A 2B CAN BE USED SEPARATELY BY A CHILD. THE TWO FLOATS CAN BE JOINED TO FORM A CATAMARAN HAVING A CENTRAL CONSOLE HAVING A MAST IMPLANT AND A DERIVATIVE WELL SUPPORTED BY TWO LONGITUDINAL BARS FIXABLE TO THE CROSS BARS3. GUTTERS IN THE BOARD AND FLOATS RECEIVE THE BARS AND ARE BUILT-IN ON CARRIER BARS OF A MOTOR VEHICLE.

Description

SAILBOARD TYPE BOAT USED IN TANDEM

  The present invention relates to a boat using a conventional windsurfing board with a view to using it in a tamdem. The windsurfing board is provided, as is known, with a mast base for fixing a first set in degree and of sail, as well as a drift well located

  substantially at the center of gravity of the board.

  A classic windsurfing board is not stable on the water which often leads to incessant falls of the yachtsman The initiation of a beginner by an instructor both evolving on the board is also difficult

  due to the instability of the board and the surface of evo-

  relatively small lution offered by the board In addition,

  transporting a passenger is also tricky.

  The invention aims to provide a type boat

  windsurfing does not have these drawbacks.

  To this end, the invention relates to a boat comprising a conventional windsurf board as defined

  above, characterized in that it comprises two streams-

  side and parallel to the board in the center of the em

  barcation and having forms and material of ana-

  logues to the central board and fixing means

  mountable to secure the board and the two floats together.

  The floats are arranged so that they do not

  practically do not trust the center of gravity of the central plank

  trale to the boat, which gives great horizontal stability to the boat The boater can perform

  change of direction operations in advance and

  carry a passenger without risk of capsizing.

  According to a preferred embodiment, the fixing means

  -2- tion comprising two bars perpendicular to the board and

  floats and fixable each to these in gutters

  res so as to keep the upper faces on the plan-

  che and the floats without roughness and therefore without risk of injury The surface area of the boater as well as the possibilities of transporting the boat are increased by the addition of two stable floors, preferably non-slip and adjustable which are fixed to both bars and which cover the two spaces between each float and

Jo the central board.

  The invention also aims to provide a boat of the windsurfing type which allows its use in tandem

  especially with a view to learning a beginner by a mo-

  For this purpose, the board includes a second fin well behind the first fin well, a second mast root between the fin wells and a third mast root at the front of the board The second and third mast root receive two respective sets of rigging and sail used by teammates on the boat The large stable surface of the boat allows team members to navigate and maneuver safely.

  The boat is completely removable by separation

  ration of the rigid structure formed by the bars in relation to the board and the floats The dismantled boat

  is transportable on an automobile luggage rack, in particular

  ment of the kind with all-purpose bars on which the gutters of the board and the floats are fitted

  stalled according to the direction of advance of the vehicle.

  Other advantages and characteristics of the present invention will appear more clearly on reading the

  following description of a preferred embodiment of the invention

  with reference to the corresponding appended drawings, in which FIG. 1 is a schematic perspective view of 351 'boat with three hulls for use in tandem; -3- Fig 2 is a top view of the boat in Fig 1 without rigging and sail assemblies Fig 3 is a schematic side view of the hulls

the boat; -

  - Fig 4 is an exploded perspective view of a bar and -a gutter support for the bar, embedded in the central board of the boat Fig 5 is a longitudinal sectional view of a bar and d '' a support above which the bar is fixed

  Fig 6 is a partial view in half-section along

  dinal of a bar at its attachment to the central board of the boat; Fig 7 is a perspective view partially in section of the right side of the bar shown in Fig 6; Fig 8 is a section of a bar in a bolt fixing plane, and Fig 9 is a top view of a boat with two hulls identical to the floats of the boat

three shells in Fig 2.

  Referring to Figs 1 to 3, the boat according to the invention is composed of three parallel hulls 1.2 a and

  2 b which are joined by a rigid structure The central shell

  trale is a windsurfing board 1 having a length and width greater than that of the two lateral hulls playing the role of identical and symmetrical floats 2 a and 2 b The central board and the floats have similar shapes, as shown in Fig 3 and are made of known materials,

  of the polyester laminate or polyethylene envelope type

  lene containing polyurethane foam, used for

  classic windsurfing boards Indeed, windsurfing

  trale can be used without floats and has a shape

  analogous to a classic windsurfing board.

  The rigid structure joining the three shells is

  removable It is made up of two tubular bars

  3 aluminum alloy sides having a length

  grossly equal to the overall width of the boat The external diameter of the bars is equal to 50 mm for example The bars are arranged substantially symmetrically with respect to a well _ 4 _ of drift 4 a at the center of gravity of the board control unit 1 so that the contribution of floats 2 a and 2 b

  does not change the center of gravity of the central board 1.

  Each bar 3 is fixed in its center to the central board 1 and at its ends to the floats 2 a and 2 b by three means

similar fixing yen.

  One of these fixing means relating to the central board 1 is described in detail with reference to Figs 4 to 8 A rigid U-shaped support 5 shown in detail in Fig 4 is arranged transversely in 'the board 1 and embedded in

  this under its upper face 10 The support 5 is metal-

  lique, for example in light alloy, and has a central gutter profile 50 having a diameter substantially larger than the bar 3 The profile 50 is terminated by two identical elongated rectangular legs 51 which are pierced with

  holes 52 in order to make intimate contact with the material

  riau poured from the board As seen in Fig 5, the

  legs 51 are arranged transversely under the upper face

  lower 10 of the board 1 Above the profile 50 is molded a similar gutter 11 over the entire width of the board

  1 The gutter 11 has a semi-cylindrical bottom having a diameter

  meter substantially equal to the diameter of the bar, 3 and a pro-

  caster substantially greater than the diameter of the bar 3 so that the bar housed against the bottom of the gutter 11 does not protrude above the upper face 10 of the

plate 1.

  In the middle of the gutter 50 is a hole made

  circular 53 centered on the longitudinal axis of plate 1.

  Under the gutter 50 and symmetrically with respect to the hole 53 are welded in parallel two identical tapped tubes

  54 The vertical axes of the tubes 54 and the hole 53 are aligned

  gnes along the central generator of the gutter 50.

  The tubes 54 are surrounded by the material of the floor while the hole 53 is completely embedded in this material

  and surrounds a blind hole 12 made in the bottom of the drop

  face 11 of the board 1 The tubes 54 and the central blind hole 1 '2 are intended for the actual attachment of the -5

bar 3 on board 1.

  As shown in Figs 6 and 7, the bar 3 has three diametrical cylindrical holes, one central of which contains a tubular centering pin 33 and two other lateral holes of which each contain a cylindrical sleeve 34. The axes of the pin 33 and of the sleeves 34 are respectively aligned with those of the blind central hole 12 of the board and

  threaded tubes 54 of the support 5.

  The centering pin 33 has a length substantially less than

  greater than the sum of the diameter of bar 3 and the length

  of the central hole 12 and an internal diameter, for example of 30 mm, substantially equal to the diameter of the hole 12 The stud 33 is made integral with the bar 3 by crimping its upper sa'base 330 so that it matches the profile cylindrical of the bar, and by constriction of self-locking shape at the level of the lower base 331 of the hole of the bar containing the stud The stud thus secured to the bar

  3 is stationary in rotation about its axis This posi-

  stationary tion can also be ensured by grooves provided on the periphery of the stud 33 which penetrate into the bases of the corresponding hole of the bar during the operations of

crimping and shrinking.

  Each sleeve 34 has a length substantially greater than

  smaller than the diameter of the bar 3 The upper 340 and lower 341 bases of the sleeve 34 are also crimped onto the bar 3 in a manner analogous to the crimping of the

  upper base 330 of the stud 33 The sleeves 34 are also

  stationary in rotation around their axis and have their bases 340 and 341 which conform to the cylindrical profile of

the bar 3.

  As shown in Figs 5, 7 and 8, under at least the upper base 340 of each sleeve 33 is provided a counterbore 342 extended by a smooth vertical hole 343 having a diameter of 10 mm for example The counterbore 342 is suitable for receiving completely the head 350 of a fixing bolt 35 which passes through the hole 343 of the sleeve = 34 The threaded end 351 of the bolt 35 is screwed into the respective threaded tube 54 of the support 5 after the introduction of the lower end

  of the centering pin 33 in the central hole 12 of the board 1.

  As already said, each of the two bars has three central fixing means identical to that described

  previously, namely a central fixing means to the plan-

  che 1 and two means of extreme attachment to the floats 2 a and 2 b The floats also each have two supports

  such as 5 each having a central smooth hole such as 12 re-

  receiving an end stud, such as 33, from one of the bars 3 and having two threaded end tubes into which two bolts, such as 35, are screwed, passing through two end sleeves, such as 34, from the bar The two bars thus fixed in the) gutters such as 11 of the board 1 and the floats 2 a and 2 b are not protruding above the upper plane of evolution of the boat and thus have no roughness susceptible to injury in particular to

  level of flooded heads 350 of bolts 35.

  The rigid structure of the boat includes accesso-

  two stable non-slip floors 36 a and 36 b as shown in Figs 1 and 2 The floors cover the two lateral spaces on the one hand between each float 2 a, 2 b

  and the central board e 1 and on the other hand between the two bars

  res 3 The transverse edges of the floors are fixed to the two bars Each floor can be made up of a

  canvas cover that can be rolled up around the bars during dismantling

  floor of the boat, or by a grating of the kind trellis-

  lily of wooden or light metal slats, which is foldable and removably attached to the bars 3 These two floors 36 a and 36 b enlarge the surface area for the boater

  and allow the extension of the latter or a team member.

  The board 1 conventionally comprises a mast root 7 a associated with a set of rigging and sail 6 p,

  which includes a wish-bone and a wake-up pump -

  The root 7 a is arranged at the front of the drift well 4 a The elements 4 a and 7 a are used solo, with or without floats 2 a and 2 b, in a manner analogous to those of a

  classic windsurfing Note that when the waves

  teurs are used, the balance and the surface of evolution of the yachtsman are much improved compared to a board

classic sailing.

  Between the two bars 3, the board 1 comprises along its longitudinal axis, in addition to the mast root 7 a and the fin shaft 4 a, a second mast root 7 b and a

  second drift well 4 b behind \ of the first 7 a and 4 a.

  At the front, the board 1 includes a third mast root 7 c The elements 7 b, 4 b and 7 c are used for two boaters on the boat One of the boaters, at the rear, acts on the set of rigging and sail 6 fixed on the root 7 b The other yachtsman, at the front, acts on a second set of rigging and sail 6 c

  fixed on the front root 7 c The two sets of rigging-

  ment and sail 6 a and 6 c may be identical or may be different in order to adapt these assemblies to the strengths of the teammates and / or to the weather conditions.

  surface of evolution on the boat facilitates the permuta-

  tion of team members and the use of the two sets of rigging and sail allows learning a beginner

by an instructor.

  For downwind navigation in particular, two mast bases 21 a and 21 b are provided respectively on the floats 2 a and 2 b to receive the sets of rigging and sail 6 a and 6 c, the sails of which are then arranged in "chisel", symmetrically with respect to the axis

  longitudinal of the central board 1.

  Preferably, each float 2 a, 2 b is provided with a drift well 22 a, 22 b substantially at the center of gravity

  of the float and back of the mast root 21 a, 21 b.

  Under the rear of each float 2 a, 2 b is provided a fin 23 a, 23 b The evolution of the boat can be ensured -8-

  by a rudder 8 mounted at the rear of the central board

  the 1 The rudder bar 80 is substantially above the upper face 10 of the board and is maneuverable

at the foot.

  It will be noted that each of the floats 2 a and 2 b is designed, _ as already said, like a conventional windsurfing whose

  dimensions allow its use by a child.

  With reference to FIG. 9, the two floats 2 a and 2 b can be coupled by the two transverse bars 3 as described above, without the central board 1, to form a boat of the catamaran type. In this case, the boat comprises two longitudinal light alloy tubular bars 9 a and 9 b The ends of the bars 9 a and 9 b are fixed to the bars 3 by means of four bolts 35

  and nuts at smooth holes 343 intended for initial-

  ment to the fixing of the board 1 Noticeably in the center of the longitudinal bars 9 a and 9 b is fixed by bolting a console 90 Along the longitudinal axis of symmetry of the boat, the removable console 90 is equipped with a root mast 91 at the front and a drift well 92 at the rear The boat with two floats 2 a and 2 b can thus be used with a set of rigging and sail 6 positioned on the central foot 91 The non-slip floors 36 a and 36 b provided for the boat with three hulls can be replaced by a single stable non-slip floor 93 of the canvas tarpaulin or net type which can be rolled up around the bars 3 or of the lattice type of wooden or light metal slats, foldable and removably attached to the bars 3 One or two holes are provided in the floor 93 above the root 91 and the drift well 92 The floor 93 covers the space

  between the two floats 2 a and 2 b.

  Thus the boat as a whole offers the possibilities

  following usability: _ 9- in large classic windsurfing solo or in tandem; in solo trimaran or: in tandem in small windsurfing for children in catamaran.

  The boat according to the invention is completely

  mountable so as to juxtapose or stack the board 1 and the two floats 2 a * and 2 b on a gallery or on bars of the general type of an automobile Preferably, the width of the six gutters such as Il in the central board -1 and the floats 2 a and 2 b is chosen so

  that gutters similar to notches can get caught

  box on the all-purpose bars and be wedged as follows

  vant the automobile's forward direction.

  Although the boat has been described according to a preferred embodiment; modifications in particular in profile and structure of the elements of the incoming boat

  in the context of the subject of the invention may be provided

tees by the skilled person.

  The shape and material of the central board 1 and the floats 2 a and 2 b can be similar to those of any known windsurfing The section of the bars 3 and 9 a, 9 b, the section of the three studs 33 and

  six sleeves 34 of each of the bars 3 and the section ex-

  dull central hole 53 and two threaded tubes 54

  of each of the six supports 5 as well as the drop section

  thirds 50 of the supports 5 can be polygonal, for example square. The two bars 3 can be fixed by any other fixing means than that described,

  for example fixing means using

mast plantings.

  Furthermore, it should be noted that each of the elements is

  sentinels constituting the boat according to the invention, and considered separately, such as in particular the central board 1, t one of the floats 2 a and 2 b and one of the bars

  3 falls within the scope of the protection requested.

_ 10 -

Claims (21)

R E V E N D I C A T I O N S.   1 boat including a windsurfing board (1)   fitted with a mast root (7 a) for fixing a pre-   mier set of rigging and sail (6 a), as well as a first drift well (4 a) located substantially at the center of gravity of the board, characterized in that it comprises two floats (2 a, 2 b) lateral and parallel to the board (1) in the center of the boat and having shapes and material of composition similar to the central board (1) Y and removable fixing means (3) for joining   between them the board (1) and the two floats (2 a, 2 b).   2 Craft according to claim 1, charac-   characterized in that the fixing means comprise a bar (3) perpendicular to the board (1) and to the floats   (2 a, 2 b), fixable thereto and having a substantial length-   equal to the overall width of the boat.   3 boat according to claim 2,   characterized in that the fixing means comprise rela-   each of the three shells formed by the plan-   che and the two floats (1; 2 a, 2 b), two blind tapped holes (54) in the hull, two smooth holes (343) in the bar (3) and two bolts (35) passing through the smooth holes and   screwed into the tapped holes respectively.   4 boat according to claim 3, characterized in that each smooth hole (34, 343) has an upper counterbore (342) in which the head (350) is embedded the corresponding bolt (35).   Boat according to claim 3 or 4, characterized in that each smooth hole in the bar (3) is that of a sheath (34) fixed transversely in the   bar (3) and stationary in rotation, fixing the oven   reau (34) in the bar (3) being preferably produced by crimping or shrinking shapes at the bases (340,341) of 11 -   sheath preferably matching the shape of the bar (3).   6 Craft according to one of claims   2 to 5, characterized in that the fixing means   take relatively to each of the three hulls constituted by the board and the two floats (1; 2 a; 2 b), a centralizing blind hole (12) in the hull preferably on the axis,   longitudinal thereof and a centering stud (33)   next to the bar (3), entering the centering hole (12).   7 boat according to claim 6, character-   in that the centering pin is a tube (33) fixed   transversely in the bar (3) and stationary in rotation   tion, the fixing of the centering pin (33) in the bar (3) being preferably carried out by crimping or narrowing in shape at the ends (330, 331) of the hole in the bar containing the pin, the upper end (330) nipple marrying   preferably the shape of the bar (3).   8 boat according to one of claims 3   to 5 and to claim 6 or 7, characterized in that the fixing means relating to each of the three shells (1; 2 a; 2 b) comprise a rigid metallic support (5) embedded transversely in the material of the shell ( 1; 2 a; 2 b),   comprising two threaded tubes (54) forming the threaded holes   blind dice to receive the two bolts (35) and an orifice   this (53) in which the smooth blind hole (12) is provided   to receive the centering pin (33).   9 Craft conforming to any of the   Claims 2 to 8, characterized in that the board (1)   and the floats (2 a, 2 b) each comprise a transverse gutter (11) in the bottom of which is fixed the bar (3), the depth of the gutter (11) being at least as great as the thickness (by example the diameter) of the bar (3).   Boat according to claims 8 and 9,   characterized in that the support has a gutter (50) similar to the gutter (11) of the shell (1; 2 a; 2 b), embedded   around it in the hull and having a bottom under the-   which are fixed the threaded tubes (54) and in which is made said orifice (53).   11 Craft according to claim 10,   characterized in that the support (5) has two trans-   sides (51) preferably with holes (52) embedded under the face   upper (10) of the shell (1; 2 a; 2 b).   12 Craft according to one of claims   9 to 11, characterized in that the gutter width trans-   side (11) is substantially equal to that of a bar   automobile everything in order to fit on it.   -15 13 Boat according to one of claims   2 to 12, characterized in that the fixing means   take a second bar (3) parallel to the aforementioned first bar, fixed by analogous means (5, 33, 34, 35) to the board (1) and to the two floats (2 a, 2 b), the two transverse bars (3) being arranged substantially on either side of the centers of gravity (4 a) of the board and floats.   14 Craft according to one of claims   1 to 13, characterized in that the board (1) comprises a second drift well (4 b) behind the first drift well (4 a), a second mast root (7 b) between the drift wells ( 4 a; 4 b), and a third mast base (7 c) at the front of the board (1), the first set of rigging and sail (6 a) and a second set of rigging and sail ( 6 c) being fixed respectively to the second   and third mast base (7b, 7c).   Boat according to one of the claims   1 to 14, characterized in that the board (1) comprises a rudder (8) whose bar (80) is substantially above 13 -   of the board and is maneuverable at the foot.   16 Craft according to one of the claims   1 to 15, characterized in that each of the floats (2 a, 2 b) is provided with a mast root (21 a, 21 b) and a drift well (22 a, 22 b) and preferably a rear spoiler re (23 a).   17 Craft according to claim 13 and   one of claims 14 to 16, characterized in that elected   includes two stable floors (36 a, 36 b), preferably   non-slip and foldable, which are attached to the two bars   res (3) and which cover two spaces between each flow-   tor (2 a; 2 b) and the plate (1) respectively.   18 Craft according to claim 13 and   one of claims 14 to 16, characterized in that   the central board (1) is replaced by two long bars   gitudinal (9 a, 9 b) having their ends which can be fixed to the transverse bars (3) and supporting a console (90) provided with a mast base (91) and a fin shaft (92).   19 Craft according to Claims 3 and 18,   characterized in that each end of a long bar   tudinal (9 a, 9 b) is fixed to one of the transverse bars   dirty (3) by means of one of said bolts (35) passing through a smooth hole (343) of the crossbar initially   intended for fixing the central board (1).   Boat according to claim 18 or 19, characterized in that it comprises a stable floor (93), preferably non-slip and foldable, which is fixed to the two transverse bars (3) and which covers the space between the two floats (2 a, 2 b).