WO2007118456A2

WO2007118456A2 - Improved surfing rig

Info

Publication number: WO2007118456A2
Application number: PCT/DE2007/000639
Authority: WO
Inventors: Thomas J. Reinhardt
Original assignee: Reinhardt Thomas J
Priority date: 2006-04-19
Filing date: 2007-04-12
Publication date: 2007-10-25
Also published as: WO2007118456A3; DE112007001450A5

Abstract

The invention relates to a rig for windsurf boards and, in particular, a windsurf rig, comprising a sail with at least one sail batten passing therethrough, connected to a boom and a mast, the mast serving for the vertical tensioning and the at least one sail batten may be tensioned within the sail between two anchor points. In order to permit a jibe without a sail shift, the sail is given the profile form essentially by means of sail battens which have a filament holding the batten under tension in a curved line. A further technical element, for example, rotatably mounted twisted sail battens (10), control the desired asymmetry in the profile.

Description

Improved Surfrigg

PRIOR ART The invention relates to a rigging for windsurfing boards, and more particularly to a surfing rig with a sail interspersed with at least one battens, which is connected to a boom and a mast, the mast serving to tension the sail, and the at least one bat within of the sail between two anchor points is braced. In windsurfing Surfriggs are well known. A sail is clamped lying in a mast pocket between mast tip, mast base and end of the boom, the boom is attached to the mast. The sail forms a stable triangle. The luff of the sail is due to a deliberate deflection of the mast under a very high bias. The sails are also extremely "high tensioned." The battens are usually also under a tension that is much lower, but the laths together with the mast for a certain transverse tension of the sail.Together with a suitable sail cut arises in the sail from the stand Technology is the appropriate, indispensable asymmetric tread shape that is important for proper aerodynamic flow.

One drawback is that the side of the sail needs to be changed: the sail has to be "shifted", which provokes driving errors for many surfers, especially at higher wind speeds, which results in the surfer landing in the water.

All other forms of Surfriggs have such serious shortcomings that they have not prevailed in the marketplace. The object of the invention is to provide a useful Surfrigg in which the sail does not need to be shifted at the neck, that is, if the driver wants, he always turns even at the neck of the same sail side, without "Schothorn" to drive ahead.

Advantages of the invention

With the measures of the main claim this problem is solved. In the dependent claims advantageous refinements developments and improvements of the respective subject of the invention are given. A central idea of the invention is the idea to be completely detached from the approach of this prior art and to provide a rig with fundamentally different geometry and other stress conditions, in which the sail its profile shape essentially by a tensioning device between the two vertical edge regions of the sail gets, which is not known as in the prior art, the mast and the sail strained transversely, giving him a curved profile line. Another technical element then controls the desired asymmetry of the profile line: the round arch becomes the desired wing-like profile shape. The sail is still as a whole höhenver'spannt using the mast, but the high vertical stress (Luff tension in the prior art) is no longer necessary to give the sail the desired asymmetric profile shape. The height tension is generated substantially independently of the transverse tension of the sail.

The tensioning device can preferably contain two stabilizing struts connected to the two vertical edge regions of the sail and fastened to the boom, and one or more elements (then) of equal construction defining the tread depth, or element (s) rigidly connected to the mast The stabilizing struts should preferably have a high flexural rigidity in all directions, which can be achieved in the case of aluminum or lightweight carbon construction, for example by means of a double-T profile. They are directly connected to the edge of the sail, placed on the sail surface, sewn, glued, jammed (or in a longitudinal pocket, preferably rigidly attached to the boom and preferably adjustable in trim for the ability to trim the tread depth in their distance from each other forming the base for the sail shape forming "H", in which the two vertical legs are the stabilizing struts and the horizontal leg of the boom or a separate component therein / thereon The vertical leg can also be attached directly to the mast and independently Be a boom.

The tread depth defining element extends from the mast to the base on the sail surface, where contact is made with the sail surface. Depending on the embodiment of this base is now varied on the sail in a horizontal direction or not. The tensioning device may also include a tendon element that connects the two edge regions of the sail in the manner of a bowstring. The boom is not needed directly here to give the sail the profile shape. This is a design principle that is particularly useful for embodiments of Figures 6 to 12.

The element controlling the asymmetry of the sail profile can be based on several different bases: Firstly, the sail may optionally be displaced relative to the mast, along with "tendons" on the boom, whereby a fixed arm preferably engages the tendon per batten from the mast as the profile depth determining element Thus, a compulsion point is preferably defined per batten, through which the profile of the batten has to go.In one embodiment completely without batten, this element may even be the mast itself or be provided as a master extension integrated into the mast, and have a suitable shape for the two half-wind profile shapes, which then defines a constraint on the sail, where the sail passes.

If this forced point or the forced line is now no longer in the middle of the arc, but more or less associated with the edge of the sail, the desired, asymmetrical, wing-like profile results automatically. In this case, the element defining the tread depth can have, for example, at its end facing the sail, a gripper which engages around a batten which bears firmly against the side of the sail which is constantly used as the windward side. Or it can be provided instead of the gripper with a flat curved, shaping element. In connection with the tensioning device, as it is present by the stabilizing struts or the "bowstring", then creates the displaceable and a-symmetrical wing-like desired profile.

Secondly, a batten with a predetermined, twisted shape can be rotatably mounted in the batten pocket, which, after rotation, the desired other bending line results than the one that was previously present. Instead of sticking in a batten pocket, especially in Bonding with the H-shaped clamping device a sail batten also simply abut the sail squeezing and if necessary be guided by suitable guide beads or guide webs. In this way, the vertical tension of the sail can be realized. These bases are also combined and particularly applicable to the aforementioned H-frame.

A batten can thus be rotated around its own longitudinal axis, for example by 90 degrees to form a different bending line with appropriate storage within its batten pocket - even under tension. For example, with a constant cross-sectional shape, the batten can have a 90 degree twist, and the batten pocket need only provide enough space for rotation to occur. The one end position, for example at 0 degrees, now produces a bend line corresponding to the most traveled profile in which one half wind course, and the other, for example 90 degrees, creates another bend line corresponding to the symmetrically oppositely shaped profile of the other half wind course. The bias in the transverse direction is made by a band, such as a textile-like plastic, which connects the two anchoring points for the battens in their pockets, similar to the bowstring of a bow. Furthermore, a rotating device is provided for all the batten slats arranged on the rig, which can be actuated by the driver, and brings about the change of the profile shape in all batten slats.

Furthermore, the function of the mast is no longer the same as in the prior art. It is only needed to keep the sail upright and to ensure less vertical biasing of the sail so that it does not wrinkle. The very large bias as in the prior art according to the invention is no longer needed to form the desired profile shape. This feature now provides the ability to a sail of several superimposed sections, for example, a main part and three additional parts, put together, which are easily removable or aufsteckbar each other. Thus, a sail can be easily changed in size without the profile shape suffers, and without the entire rig must be disassembled. This is useful because It saves time and material when adjusting the rig to different wind speeds.

According to one aspect of the invention, there is disclosed a surfacing with a sail interspersed with at least one battening bat, normally three to about seven depending on the sail size, with one mast serving the height-tensioning of the sail and the at least one battening bat within the sail between two Anchoring points is clamped, which is characterized in that a) attaches a clamping element in the region of or at the two anchor points and the sail in the region of at least one sail batten transversely braced, so that the batten of a bending line follows, b) one of the surfing person operable control mechanism is provided, the operation of which varies the location of the strongest curvature of the bending line of the at least one batten beyond the middle of the batten on both sides. As a result, the inflow profile of the sail for the two opposite half wind courses adjusted without sail shifting is changeable. The term "interspersed" means that the bar is due to tension forces on sail or batten conditionally tight against the sail, or is located in a batten pocket.

Two alternative embodiments are disclosed below. Both rigs have to be attached to the surfboard with a mast base with PowerJoint. In the first, the boom and sail form a unit which, as a whole - acting on the boom - can be moved perpendicular to the longitudinal axis of the mast, whereby the rotation of the battens is carried out via positively connected with the mast forced guides for the battens. On the much-traveled half-wind course, the mast is located in one of the two end positions in a longitudinal guide on the boom, where it is releasably locked. The sail is attached to the boom with a lateral pulling and pushing force transmitting connection device.

In the second embodiment, mast, sail and tree are movable only as a whole. The mast is here constantly a location, preferably assigned to the center of the sail. A rotation of the battens is carried out by moving a vertical rod along the mast, whereby each because separately for a sail batten provided, are connected to the vertical rod control lever pivoted, which embrace the batten rigid and cause the rotation of the slats during the pivoting operation. Preferably, the mast base is longitudinally displaceable in a rail mounted in the board to get the weight during the neck far enough forward to the bow of the board to allow optimal sliding.

Thus, the invention provides significant advantages:

On the one hand, it enables a novel driving experience in the neck, because you can "cross" the downwind course under consistently full wind pressure at the neck and thus connect the two space classes by "cruising" without explicit maneuvers.

On the other hand, the rig can be changed in a simple way by the modular construction of several composable segments in size,

which makes it easier to adapt to the prevailing wind strength than before.

Mast, sails and battens can be built much easier, because less tension than before must be generated to give the sail its shape.

drawings

With reference to the drawings, embodiments of the invention will be explained. Figures 1 to 5 for the first, Figures 6 to 12 for the second embodiment.

Show it:

Figure 1 is a partial view from above on the boom, above the sail, below the boom, in a position shortly after a jibe, shortly before reaching the end position of the new half-wind course, Figure 2 is a partial view corresponding to Figure 1, with the mast in the

End position of the opposite half-wind course;

FIG. 3 shows a view of a guide sleeve for the boom, rigidly fastened to the mast;

Figure 4 is a partial right side view of Figure 3 of the mast with the guide sleeve in the middle and two sleeves (top, bottom) for respective arms engaging on battens (not shown); FIG. 5A shows a section of a gripping jaw with a passage opening and a sail batten located therein, in a batten pocket of a sail;

Figure 5B is a schematic sketch of a batten according to the embodiment, with twist by 90 degrees; Figure 5C is an illustration of a fictitious batten without twisting to illustrate the twisted state;

Figure 5D is a sketch of the pivot bearing on the end portion of a batten, with a ball head on the batten and ball socket at the pocket end of the batten pocket; Figure 6 is a schematic of a surfboard with rig; Figure 7 is a partial view of the mast with handle for moving the vertical rod for rotating the battens, vertical rod in the upper end position; Gripping jaws in southwest-northeast direction,

Figure 8 is a partial view similar to Figure I ₁ on mast and vertical rod, for moving without handle, vertical rod in the lower

end position; Gripping jaws in northwest-southeast direction;

FIG. 9 shows a partial section of the gripping jaw with inner batten, corresponding to the position of FIG. 7;

FIG. 10 shows a partial section of the gripping jaw with inner sail plate, corresponding to the position of FIG. 8;

Figure 11 partial view, on mast with vertical rod, with cuff for a Fixierarm and a control gripper, the control gripper is also shown in dashed lines in another position, and Figure 12 partial view corresponding to Figure 11, obliquely from above, control gripper in only one position.

Description of exemplary embodiments

In the figures, the same reference numerals designate the same or functionally identical components.

A known to a known boom similar, and the detention of the person serving member 16 has, according to Figure 1, a handle spar 17 which has an elongated shape and has bent end portions 19 which define an inner region of the boom, which is provided for receiving a mast 18 , The boom 16 can be moved relative to the mast 18 in the paper plane of Figure 1 right-left, so that the mast is located at different points of this interior, being guided by horizontal guides 2OA and 2OB. Guide 2OA extends as a straight beam between the two end portions of the boom 16, guide 2OB extends in a similar manner and connects the two open ends of the handle spar. The two guides 2OA and 2OB are made of rigid material, such as hollow aluminum or carbon and provided with a sliding layer, the most easy as possible, precisely guided movement of the mast from left to right in the picture and vice versa. The mast is located substantially perpendicular to the plane spanned by the boom plane (paper plane). The material of the boom essentially corresponds to the material of the currently commercially available booms. However, the handle 17 may be integrally made of the same material, for example aluminum coated with a grip. The guides 2OA and 2OB may also be made of aluminum, connected by welding to the handle spar.

In the upper part of Figure 1, the profile of a sail in the form of a batten 10 is shown, which is in a sailing bag. The two ends of the batten 10 sit in fixed anchor points of the sail bag. The sail bat is tensioned with a tension band 12 made of a substantially non-stretchable textile which braces between the two anchor points. A fixing arm 14 connects the batten 10 and mast 18. A fixing arm 14 is vertically arranged at several points on the mast arm and connects - laterally displaceable, see the arrows in Figure 1 and 2 - each separately the mast with a portion of the sail.

According to Figure 1, a pivot bolt 17 is provided on the right and left side end portion of the horizontal guide 20a, which holds the mast 18 stable in its respective end position after its operation. A locking is recommended for jumps and other maneuvers with abrupt rigging movements. The pivot bolt 17 is shown left in the open position and right in the closed position. It is pivotally mounted about the longitudinal axis of the horizontal guide 20a and is locked in that it engages around the guide 20b with a matching recess at its free end. A certain clamping fit on guide 20b prevents involuntary release of the bolt. To unlock the pivot bolt 17, one pulls on a handle, not shown, on this bolt and pivots it into the position shown on the left.

Figure 2 shows the mast, as he has arrived at the right stop of his guideway. The sail 27 is connected to a lateral tensile and shear forces transmitting connection device 26, 28, see the arrows in Figure 1 and 2 - attached to the guide 2OB of the boom to boom and Sail at the same time and as a compact unit relative to the mast to move. The connecting device contains for a rigid, about 3 cm wide bar 26 made of plastic or carbon, which is connected via hinge points 28 with Aufsetzstucken (not shown), which in turn are sewn to the sail at the lateral edges and / or glued. Due to the hinge function, an adaptation to the different sail profile shapes of the two half wind courses (FIGS. 1, 2) is given. Two links 24 of the same material as the strip are attached to the right and left end of the Fuhrungsholmes 2OB and connect rigidly to the bar 26, preferably with a releasable snap connection. In order to ensure a trim possibility of the sail 27 with different lengths Sehnenlime, the bar 26 is composed of two substantially equal parts, which are mounted displaceably mounted on each other and overlap a little more than necessary for the trim area. As an alternative to the connection 24, 26, 28, a connection between the respective edge of the sail (Ose) and the associated fork end piece (slip clamp) can be effected by means of two slings as a cost-saving variant.

It can be clearly seen in the comparison between Figure 1 and Figure 2, that the profile of the batten 10 has set exactly symmetrical against the same, as it is intended to no longer have to shift in the neck. Details of fixing arm 14 and batten 10 are described below.

According to FIG. 3, a guide collar 30 is rigidly fixed to the mast at an adjustable height which, by its shape, serves as a vertical guide 32 for horizontal movement of the guide rails 2OA and 2OB of FIG. This Vertikalfuhrung 32 forms to the left and right going leg Ü, which arranged in pairs accommodate the Fuhrungsholme 2OA and 2OB with a small game, as shown in Figure 4 from view in the longitudinal direction of the guides 20. The vertical guide 32 is made of stable plastic with a carbon content and preferably has a Teflon coating on the contact surfaces with the guide rails 20, so that the ensemble of sail and boom can easily be moved in the transverse direction to the mast. The U-thighs are long and tight enough so that the tree 16 does not tilt during its movement in the guide 32.

With further reference to FIG. 4, two sleeves 34 are shown enclosing the mast, each carrying a fixing arm 14. The cuffs 34 can provide with a clip closure similar to the closure of a boom only in lighter version for a tight fit of the Fixierarms so that it is neither in the direction of rotation around the mast around nor in its longitudinal direction movable.

Figure 5A now shows technical details of the connection of fixing arm 14 with the batten 10, as shown in Figure 1 in the dashed circle 13. Fixing arm 14, however, extends in Figure 5 in the horizontal direction. The fixing arm 14 passes through a slot 58 into the interior of a batten pocket 54. Slot 58 is provided as a longitudinal slot almost over the entire longitudinal extent of the batten, so that the sail can complete the entire range of movement relative to the mast, see Figure 1. The fixing arm 14 has at its end a closed jaw 50, the sail batten 10 substantially form-fitting embraces up to a small game. In other words, the cross-sectional shape of the batten 10 substantially corresponds to the cross-sectional shape of the opening forming the gripping jaw 50. The gripping jaw 50 thus forms a substantially dimensionally rigid passage opening, within which the sail batten 10 can be moved, from its one end section to its opposite end section. The sail 56 extends above and below the batten pocket 54 shown in FIG. 5A.

As can also be seen from FIG. 4, in some vertical distance, for example 60 cm, the next fixing arm 14 then picks up from the mast to the next sail battens which are arranged according to the position in the sail. This system is repeated for all existing in the sail sails. Thus, the entire wind pressure is held by the multiple existing gripping jaws, which in turn on a fixed counter-pull the windsurfenden person, attacking the boom, against specially provided rigid lips 57 of the batten pocket 54 print. Accordingly, these lips 57 must have a high mechanical strength. The sail 56 can be made of conventional teπal be made. The lips 57, however, should not be made of a textile, but for example of a suitable plastic or carbon, again preferably an internal Teflon layer for easy sliding of the jaw 50 on the inside of the lips 57 provides. The Teflon layer may be provided on the lip 57 or on the jaw 50 or on both. The jaw 50 has a longitudinal extent (right, left in Figure 1 of about 5 cm, depending on the use of materials, the length should be adapted to the compressive forces occurring in the sail.If very large forces occur and must be implemented, it is recommended To extend the jaw a little longer, so that the pressure forces better spread on the lip surface 57.

The connection between canvas and lip 57 can be done for example by sewing and gluing. The back 59 of the batten pocket 54 may be manufactured in one piece with the rest of the sail or sail section. The interior of the batten pocket 54, i. the space provided for the batten 10 should be sized so that the batten 10 can rotate 90 degrees about its longitudinal axis within the batten pocket. For this purpose, it is advantageous if the vertical tension of the sail is not too great, so that during the rotation of the sail batten there is not an unnecessarily high friction between the batten and the batten pocket.

FIG. 5B schematically shows, in a perspective view, an exemplary embodiment of a sail batten 10 which is made of a conventionally used material, for example a glass fiber reinforced plastic. This batten has a substantially constant over its entire longitudinal extent of cross-section, namely rectangular, with an aspect ratio shown here of about 3: 1. However, the batten 10 according to the invention has a twist of 90 degrees, which takes place as shown in the example evenly along the entire length of the batten. FIG. 5 c shows the same batten 10, only without twisting. Figure 5 c is only for explanation. The batten from FIG. 5B can be produced by a corresponding milling process, so that it is present in the form shown in FIG. 5 b without mechanical pretensioning. If a batten 10 made of a homogeneous material For example, as a casting is made, the cross-sectional shape should be such that the bending forces are not unnecessarily high when the windsurfende person moves the sail on the boom along the mast. A rectangular shape, as shown in Figure 5B, with some rounding at the edges is preferred in order to easily simulate the desired bending moment prior to fabrication. Each batten 10, as shown in FIG. 1, is braced at its two ends with a tension band 12, whereby the batten 10 forms an arc, the arc shape, ie more profile curve left or more profile curvature to the right of the fixing arm 14 in FIG is determined by where the fixing arm 14 engages around the batten. With a rectangular cross-sectional shape, the edge ratios a to b (see FIG. 5B) can be varied in relation to 1: 2 to 1: 5. However, this ratio should also be adapted to the desired tension of the tension band 12 and to the rest of the material properties of the sail, batten and strap.

The rig according to the first exemplary embodiment can be connected to a conventional surfboard via a mast base. The sail preferably still has thin stabilizing struts, which, firmly connected to the canvas, form the left and right ends of the sail in a vertical line running from top to bottom. In this way, the tension of the battens 10 is evenly distributed over the entire sail and achieved a high dimensional stability of the sail. The upper or lower horizontal end of the sail can either form a textile edge of the sail itself, or a batten 10, as described above.

According to FIG. 5 d, the front end of a batten 10 has a ball head 61. The ball head 61 is rigidly connected to the batten 10 and preferably manufactured einstuckig with this example by casting in a corresponding mold. Both ends of the batten are provided in this embodiment with such a ball head 61. The ball head 61 now sits in each case in a matching Gegenstuck 63, which has a spherical head corresponding ball socket. Thus, a ball joint is formed from ball and ball socket. The pan stew 63 is rigidly connected to the end of the batten pocket 54. It is preferably made of a hard plastic, preferably has a Teflon coating, so that the ball head in the pan can be easily rotated and has seen in section, a downwardly open ü, the free legs close to the ball body easily. Preferably, the opening formed by the U is slightly elastic, so that the ball head 61 can be pushed in by hand and pulled out again if necessary. The batten 10 is thus movable about its longitudinal axis (see Figure 5 d), even if it is biased arcuately as shown in Figure 1 by the clamping band 12. The detail from FIG. 5 d is arranged from the position in the dashed circles 11, in each case at the end of a batten and at the end of a batten pocket.

The batten pocket 54 has an opening at least at one of its ends, through which the slat together with the end piece 63 for receiving the joint ball 61 of the slat can be pushed in and pulled out. The batten pocket can then be closed with a conventional hook-and-loop fastener, possibly secured by a strap, as known in the art. A gripping jaw 50 can also be introduced into the pocket in this way, wherein in the first exemplary embodiment the fixing arm 14 can be gripped immediately after being inserted through the longitudinal slot 58 and can be pulled out. In an advantageous manner, the fixing arm 14, in both the first and the second exemplary embodiment, is composed of two telescopically engaging arms, which each have mating detents, whereby the two sections can be assembled to form a stable, complete piece. This feature is not shown in the drawings to enhance its clarity. As an alternative to the two-part design of fixing arm 14 or 92, a one-piece design can be selected, in which case the gripping jaw 50 consists of two parts, which can be connected to each other by means of screws, for example, after the sail batten 10 has been threaded into the gripping jaw 50 " ,

Trim possibilities: The clamping length of the tension bands 12 can be varied in a simple manner, if their attachment to the sail, for example by means of a large Velcro fastener or with a belt with Adjustment possible. This allows the belly to be set flatter or lower in the sail.

With further reference to FIG. 6 et seq., A second embodiment of the invention will be described in more detail below:

According to Figure 6, a standard surfboard 60 of the prior art is provided with a rail 64 which slidably supports a Mastfuß. The mast base and thus the mast 18 can be locked in at least 2 positions, here shown the two end positions. The locking is done by squeezing by spring pressure from a prestressed elastic element, the lots is done by pressure against this element. For this purpose, the rail 64 preferably has a rail inner part which engages through a longitudinal opening provided by the rail 64 and carries the mast base. By pressing on the mast base over the cable harness or via a tread element, two elastic elements present in the inner rail part are pressed together, as a result of which there is no longer any clamping fit between the rail part and the inner rail part. In this state, the mast including Mastfuß along the rail 64 is movable. During the neck, the rig is preferably driven in the forward position towards the bow, while it is driven further back on the other courses in the other position. It can also be defined intermediate positions by corresponding notches.

The sail 56, the mast 18 and the (fork) tree 16 are substantially rigidly connected together in this embodiment, the mast is seen right-left associated with the center of the sail, and the sail is by the mast of the high braced. The sail 56 contains, as in the previous exemplary embodiment, a plurality of batten slats 10, and tension straps 12, which are arranged one above the other and give the sail a curved shape. The sail is substantially rectangular in the frontal view, but it may also be trapezoidal in other embodiments and have more or less rounded corners. In principle, other forms are possible. The boom 16 is rigidly attached to the mast with a stable collar (not shown) so as to be substantially perpendicular to the mast. He preferably has no direct connection with the sail or with a batten. As indicated by the dashed outline in gur 6 shown, the boom can be extended to the full width of the sail. This can be recommended to be able to perform a water start in a controlled manner even in very strong winds.

According to Figure 7, a so-called vertical rod 72 is arranged parallel to the mast 18 displaceable to the mast in the longitudinal direction thereof. The vertical rod 72 is for this purpose at least 3 points on the mast, namely preferably down below, in the center and top, in which it passes through guides, which in turn are attached to the mast 18 by cuffs, as shown in Figure 4 and their description already known. The vertical bar can thus be moved by about 20 cm in height.

For the locking of the vertical rod 72 in the upper end position, a handle 70 is provided, which by rotation to the right see a clamping between the handle and the mast. This is accomplished by gripping the handle 70 with a threaded extension through the handle portion 72, the thread engaging the mast. It will take a quarter turn to release the catch or bring it about. The vertical rod 72 carries for each batten 10 a fixing arm 92 and a control gripper 74, as shown in FIG. FIG. 7 is primarily concerned with the representation of the vertical rod 72 with the control grippers 74. Therefore, the representation of the fixing arms 92 has been omitted in order to increase the clarity of FIG. A gripping jaw 50 is fastened to each control gripper 74, as has already been described in principle in connection with FIG. 5A from the first exemplary embodiment. Here, too, it surrounds the batten 10 essentially in a form-fitting manner, so that a rotation of the batten through a variable angular position of the control gripper 74 can be effected. The jaw 50 has a rigid shape and is rigidly connected to the Steuerergrei- 74, wherein the control gripper 74 is pivotally connected at a hinge joint 90 with the vertical rod 72. The control gripper 74 and gripping jaw 50 may be integrally molded, for example, from polycarbonate or other suitable plastic. Figures 7, 8, 9, 10 and 11 show in their entirety, as in the operation of the handle and move the vertical rod 72 along the mast from one end position to the other end position, the battens all together at the same time, they make a 90-degree turn in their batten pocket. It should also be noted that also in this second embodiment, the battens 10 each at its two anchor points, such as one shown for example in Figure 5D, are rotatably mounted, and, as shown in Figure 12 and Figure 1, by a tension band the have necessary bias to form a Bo- gene profile, which can then be brought by the targeted rotation of the batten in the desired on the respective half-wind course profile shape.

According to FIG. 12, each batten is assigned a fixing arm 92, which serves as a spacer for the distance between the batten and the mast. The fixing arm 92 is fastened by means of a collar on the mast 18, as it proceeds from Figure 11 and Figure 12 with the sleeve 34. The fixing arm 92 has a passage opening for the batten 10 within which it can rotate freely. The batten 10 is on the one hand fixed in height by the fixing arm and on the other hand fixed in their distance relative to the mast. The fixing arm 92 engages around the batten to a length of about 20cm to 40cm, to give the batten, and thus the entire sail a stable alignment with the mast. This thus formed sleeve is provided in Figure 11 and 12 with reference numeral 76.

The control of the rotation of the battens is described in more detail below. Starting from the position shown in FIG. 7, the vertical rod 72 is in its upper end position. It engages with each of their gripping jaws 50 a respective batten. In this position, the batten forms the profile for the one halfwinding course, for example as shown in FIG. If the vertical rod 72 is then moved downwards into the other end position by loosening the handle 70 and displacing the rod downwards, then all the fixing arms 92, which are each provided per batten, hold the batten in place. However, as a result of the fact that the control grippers 74 no longer grip the battens from above, but from below, namely by 90 degrees, the batten 10 likewise performs a rotation of 90 degrees. These two positions are also shown in detail in FIG. 9 and FIG. So that Control gripper 74 can perform this movement, they must be designed variable in length. This is done preferably in that they form a telescoping rod construction.

FIG. 11, together with FIG. 12, shows the situation of the engagement of the control gripper 74 and the fixing arm 92 on the batten 10.

As will be appreciated by those skilled in the art, as the preferred materials for the vertical bar 72, fixing arm 92, sleeves 76, and control grippers 74, highly stable light weight materials are preferably used as are common in high quality windsurfing equipment today. As is apparent from Figure 11, the control gripper 74 is in the upper position of the vertical rod 72 from the northwest forth to the batten 10 attacking, whereas where he attacks in the dashed position of the lower end position of the vertical rod 72 from the southwest to the batten 10. The fixing arm remains essentially in the same position. For the sleeve 76 and the jaw 50 of the control gripper 74 matching openings are provided in the batten pocket.

In addition, FIG. 12 shows that the fixing arm should be positioned, dimensioned and adjusted in such a way that it allows the correct profile shape for both half-wind courses. For this purpose, it is associated with the center of the sail, as is already obvious by the attachment to the mast, and the sleeve 76 has from the mast at such a distance, which is suitable in the interaction with the setting of the clamping band 12, the desired To create profile shape for both half wind courses. The distance between strap 12 and fixing sleeve 76 is therefore about 4/5 of the belly depth of the sail. This distance can also be provided adjustable according to a further preferred aspect of the invention in that the fixing arm 92 is likewise telescopic, but can be fixed in the desired length by means of a clamping screw or the like.

According to another preferred aspect of the present invention, in both of the above embodiments, the sail may be composed of a plurality of sections to resize the entire rig quickly and by replacing fewer parts to conform to to adapt to different wind strengths. In this case, a main part is provided in a preferred manner, which includes, for example, 4 battens. With a width of about 2 m and a height of about 2 m, this results in a storm sail of about 4.0 gm sail area.

At this base sail portion 80 can now be a further Segelteilstuck 82 are set, as shown in Figure 6 iteratively equal to several pieces of sailing pieces 82, 84 and 86 with different sizes. In this case, a partial piece preferably contains a connecting member for attachment to the already existing partial piece and the flat-shaped sail textile, as well as a further batten pocket 54 with an inner batten 10. The connecting member may for example be a simple zipper, which is provided with reference number 85 in FIG. It connects the two sail parts 80 and 82 and starts shortly above the uppermost batten pocket 54, as is also shown at the very top in FIG. 5 a. Instead of a zipper you can also choose press studs or a Velcro fastener. The mast 18 may also be composed of several parts for this purpose, these parts preferably pushed into each other and can be locked angular precision. An additional Mastteilstuck contains in the first exemplary embodiment, the sleeve 34 with the fixing arm 14 and in the second exemplary embodiment, the cuff with the fixing arm 92 and a vertical rod portion 72 with a thereto attached via a joint 90 control gripper 74. The vertical rod can then from their individual sections preferably with a Snap connection be assembled.

The skilled artisan recognizes that in this simple way a sail in its size can be varied over wide large ranges, in the example shown between 4.0 and 6.7 square meters. Even larger sail sizes of 12 gm are thus feasible in principle.

The embodiments shown can be varied in many ways. For example, the course of the twist in the longitudinal direction of the batten can not be linear, that is to say uniform, as shown in FIG. 5B, but a center region can be located in the middle of the batten. ben, who does not continue the twist from the two edge areas, but constant hold.

Inexpensive variants of the exemplary embodiments, targeted selection of the materials, by mechanically simple connections (Velcro zippers, Tarapenverbindungen, etc.) of the essential parts and by omitting individual slats controls (function is taken over by the controlled slats in part) are produced.

Although the present invention has been described above with reference to a preferred Ausfuhrungsbe- game, it is not limited thereto, but modifiable in many ways. The choice of material for the individual parts of the boom, mast, cuffs, fixing, gripping jaw is vornehmbar similar to the prior art in Surfπggs, with the Maßga- be that most known parts such as masts, battens, and sails can be built more easily since less tension in the sail.

Finally, the features of the subclaims can be combined substantially freely with each other and not by the order given in the claims, provided that they are independent of each other.

The fixing arms 14, 92 can also be formed to a small extent in the locked position langveranderlich to compensate for the different length between the mast and base on the sail which results between center position on downwind course and edge position on half wind course. For example, a telescopic structure of the arm may include a spring-corresponding element in the longitudinal direction of the arm, or the entire fixing arm may be made of a resilient material, such as a flexible plastic or rubber.

Claims

claims

1. Surfrigg with a sail (27) and a mast (18), which serves the tension of the sail and a boom., Which is mounted on the mast, characterized in that a) a tensioning device between the two vertical edge regions of the sail is provided, which transversely braced the sail, thereby giving him a curved profile line, and

b) a control mechanism which can be actuated by the surfing person is provided, whose actuation varies the point of the strongest curvature of the profile line in each case in the direction of the vertical edge of the sail without shifting the sail.

2. Surfrigg according to claim 1, wherein the clamping device includes two connected to the two vertical edge regions of the sail, and fixed to the boom stabilization struts, and defining a profile depth, rigidly connected to the mast element.

3. Surfrigg according to claim 1, wherein the tensioning device includes a chordal element, the two edge regions of the sail in the manner of a

Bowstring connects. <Boom is not needed directly here to give the sail the profile shape>

4. Surfrigg according to claim 1, with a with at least one sail batten (10) enforceable or provided sail (27), wherein the at least one batten (10) on the sail between two respective vertical edge regions of the sail associated anchor points (63) and the sail clamped, wherein the tensioning device comprises a clamping element (12) which attaches in the region of the two anchor points (63) and transversely braces the sail in the region of the at least one batten (10) so that the batten follows a bending line.

5. Surfrigg according to one of the preceding claims, wherein on the mast (18) a guide element (30, 32) can be fastened, which is the boom

(16) carries and at a displacement substantially perpendicular to Mastachse leads, wherein the displacement triggers the control mechanism, wherein one of the mast (18) rigidly connected, and preferably per batten (10) provided arm (14) has a forced point for a displacement caused by guiding the batten (10), which Bend line of the batten (10) essentially determined.

6. Surfrigg according to claim 5, wherein a) the batten (10) is rotatably mounted on at least one of the anchor points (63) about its longitudinal axis, b) the batten (10) has a longitudinally twisted, predetermined shape between its two end sections, c) and for the sail batten (10) a manually operable rotating device is provided which rotates when actuated the batten (10) in a longitudinally clamped state about its longitudinal axis.

7. Surfrigg according to the preceding claim, wherein a) the batten (10) in a longitudinal slot (58) provided with a batten pocket (54), b) wherein a free end portion of the rigidly connected to the mast (18), and per sail batten (10) provided arm (14) has a dimensionally stable passage opening (50) for the batten (10), which acts as a constraint, c) wherein the passage opening (50) substantially corresponds to the cross-sectional shape of the batten (10), d) wherein the arm (14) through a slot (58) in the batten pocket (54) passing through the batten (10) with the passage opening (50) engages around substantially positively, whereby the bar (10) is rotatable when moving the sail (27) relative to the mast.

8. Surfrigg according to the preceding claim, wherein a) the batten (10) in the longitudinal direction has a substantially constant cross-sectional shape, b) the batten (10) at both anchor points (63) is rotatably mounted about its longitudinal axis.

9. Surfrigg according to claim 4, wherein sail (27), mast (18) and tree (16) are substantially rigidly interconnected, wherein the mast (18) is associated with the longitudinal center of the sail and the sail hόhenverspannt, and the control mechanism a Lever (70) which is operable to rotate the at least one batten (10) without the need for a displacement of the sail relative to the mast.

10. Surfrigg according to the preceding claim, wherein the lever (70) is connected to a vertical rod (72) which is mounted vertically movable and parallel to the mast in the control, wherein the vertical rod (72) hinged to control grippers (74) for simultaneous rotation connected by several battens.

11. Surfrigg according to one of claims 1 to 10, comprising a plurality of sections (80, 82, 84, 86) composable sail (27).

A sail for a surfigigg according to any one of claims 1 to 10, which is composed of a plurality of parts (80, 82, 84, 86).

Sail for a Surfrigg according to one of claims 1 to 10, comprising at least one batten pocket (54) having a longitudinal slot (58).

14. section for a sail according to claim 12.