DE202008002821U1 - tube kite - Google Patents

Abstract

tube kite with a leading edge formed by a tube (2) and a trailing edge (8) and two front lines (22, 24) which are merged into a tug (26) at the a chickenloop (28) is attached, and with two at the ends of a Bar (16) fastened back lines, the front lines (22, 24) each via a branching bridle system (18, 20) are attached in the region of the leading edge, characterized in that the bridle system (18, 20) has a translation (34), wherein that of the associated front line (22, 24) on the outside lying connecting points (46, 48) transmitted forces smaller than that of the front line (22, 24) on one in between lying point of attachment (40) transmitted force are.

Description

The The invention relates to a Tubekite according to the preamble of claim 1

Such Tubekite is for example from the EP 1 644 244 B1 the applicant known. This Tubekite has an upstream inflatable front tube, on which a plurality of Struts extending in the direction of a trailing edge are supported, so that a Kitesegel (Canopy) is clamped. Such a C-kite is preferably designed with 5 lines, whereby two front lines are brought together in a V-shape and suspended by means of a central pull line and a chicken loop on a trapeze belt of a surfer. Backlines engaging a trailingedge are led to the ends of a bar so that a control pulse is transmitted to the kite by pivoting the bar. The 5th line is attached to the center of the tube and connected via a stopper in the V-shaped junction with the front lines or the common tug line. The extending below the stopper end portion of the 5th leash is led to the surfer. The employment of the kite can be adjusted by an adjuster by lengthening or shortening the tug line.

such Kite constructions are also referred to as so-called C-kites. Recently also enjoy so-called bow-kites increasing popularity, where the front lines over a Bridlesystem attack on the kite, the Bridlesystem such is executed that - seen from the front - the Warp of the kite flatter than the C-kite is.

With so-called hybrid kites will try the benefits of both systems to combine. If one now uses such a bridging system A C-kite with a 5th leash may be due to the overdetermined Support in an adjustment of the Bridlesystems the 5th leash come loose, changing the profile of the kite and thus the flight behavior is deteriorated. Furthermore, change Even without the 5th line, the control forces increase with increasing Swiveling the bar and thus increasing train to the concerned Back leash.

the opposite the invention is the object of a Tubekite with Bridlesystem to create, the comparatively simple is trimmable. This task is performed by a tubekite with the features of claim 1.

Of the Tubekite is according to the invention with a Bridlesystem executed, over which the front lines at the respective Attack leading edge / tube. This bridging system is with a translation carried out, by the associated front line on the outside Attachment points of the Bridlesystems transferred forces about half the size of the front line on one transferred in between attachment point of the Bridlesystems Force. Through the interaction of a 5th line and this bridle system can be a flat regardless of the angle of the kite Profile can be adjusted so that the kite has a stable flight behavior shows.

at a variant of the invention is the translation by executed a multiple deflection, the front line over a diversion is connected to a central line, on the one hand at the intermediate point of intersection and on the other hand is attached to a further deflection, over the one Bridleleine is deflected, whose end sections at the two outside is attached to lying connecting points.

to Minimization of friction, these deflections are preferred as Rolls performed.

The Flight behavior of the kite is further enhanced when the way the Bridleleine bounded along the diversion via a stopper is.

One preferred embodiment of the invention is hereinafter explained in more detail with reference to a schematic drawing. This single drawing shows a front view of an inventive Tubekites and an enlarged view of one Bridlesystems.

The Tubekite shown in the single figure 1 has a leading edge forming inflatable front tube 2 , at which a plurality of approximately in the direction of flow Struts 4 is fixed so that a sail / canopy is spanned, the upstream in the flow direction end portion of a trailing edge 8th (Trailingedge) forms. The visible in the representation C-profiling is adjusted via a line system, wherein in the region of the trailing edge 8th on lateral tips 10 attacking backcloths 12 . 14 to the end sections of a bar 16 are guided. At the tube 2 (Leadingedge) access a bridging system 18 . 20 two front lines 22 . 24 on, the V-shaped to a central tug 26 are merged through the bar 16 through to a chickenloop 28 extends, which is releasably hooked to a harness of the Surfers. In addition to the two front lines 22 . 24 grabs the tube 2 a so-called 5th leash 30 on, which has a stopper 32 in the area of the V-shaped merging of the front lines 22 . 24 with the tug line 26 connected is. The below the stopper 32 lying section of the 5th leash 30 is relatively loose to the chickenloop 28 led and also enforced the bar 16 ,

The bridle system 18 . 20 is with an over reduction 34 executed, which is shown enlarged in the figure. Accordingly, each has a front line 22 . 24 associated translation 34 one at the respective front line 22 . 24 fixed pulley 36 through which a middle line 38 is deflected, one end of which via a central point of attachment 40 is attached to the tube and at the other end portion of another pulley 42 is knotted. At this is a bridle line 44 deflected, which is approximately V-shaped from the other pulley 42 stretched out and over two external connecting points 46 . 48 at the tube 2 is attached. By this arrangement, a 2: 1 ratio is practically carried out, each with a tug 24 transferred force to 50% on the message line 38 on the middle point of attachment 40 and 25% each over the bridle line 44 on the external points of contact 46 . 48 is transmitted.

Now, for example, a steering pulse by pivoting the bar 16 initiated (Einsheeten) to the bottom right, so the right in the figure tip 10 over the back leash 14 pulled down and thereby corresponding to the point of attachment 58 extending part of the bridle line 44 shortened and corresponding to the deflection roller 42 to the other external point of attachment 46 extending area extended. The position and the middle point of attachment 40 transmitted force remain essentially unchanged, so that even when the initiation of the steering impulse virtual pivot point substantially in the range of this middle point of attachment 40 remains. That is, the kite tilts from the side by one through the point of attachment 40 extending axis, so that the angle of attack changes accordingly.

This bridle system makes it possible to use the front lines 22 . 24 transferred forces largely evenly in the Leadingedge / Tube 2 This force application is independent of the angle of attack, so that the kite profile can be kept relatively flat regardless of the trim setting, so that a maximum performance is ensured even in the under-exploited area.

The Bridlesystem further ensures that the steering (tightening the back line 12 . 14 ) required force remains largely the same, since the point of the pulley 42 at the bridle line 44 virtually automatically adjusts. In the conventional solutions it turns out that in this Einsheeten the trimming power was rather larger.

As already mentioned, the displacement of the pulley 42 along the bridle line 44 every bridle system 18 . 20 be changed by a stopper, not shown, in a predetermined, possibly adjustable range.

Disclosed is a tube kite in which the front lines are translated over Bridle system attack on the leadingedge.

1

tube kite

2

tube

4

Strut

6

sail

8th

trailing edge

10

Tip

12

Back leash

14

Back leash

16

bar

18

Bridlesystem

20

Bridlesystem

22

front line

24

front line

26

dragline

28

Chickenloop

30

5th rope

32

stopper

34

translation

36

idler pulley

38

middleline

40

middle connecting factor

42

idler pulley

44

Bridleleine

46

outer connecting factor

48

outer connecting factor

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 1644244 B1 [0002]

Claims (6)

Tubekite with a through a tube ( 2 ) formed leading edge and a trailing edge ( 8th ) as well as two front lines ( 22 . 24 ) to a tug line ( 26 ) at which a Chickenloop ( 28 ) and with two at the ends of a bar ( 16 ) fastened back lines, the front lines ( 22 . 24 ) in each case via a branching bridging system ( 18 . 20 ) are attached in the region of the leading edge, characterized in that the bridging system ( 18 . 20 ) a translation ( 34 ), whereby that of the associated front line ( 22 . 24 ) on external links ( 46 . 48 ) transmitted forces smaller than those of the front line ( 22 . 24 ) to an intervening point ( 40 ) transmitted force. Tubekite according to claim 1, wherein the external connection points ( 46 . 48 ) transmitted forces about half as large as on the intermediate point of attachment ( 40 ) transmitted force. Tubekite according to claim 1 or 2, wherein the front line ( 22 . 24 ) each have a deflection ( 36 ) with a middle line ( 38 ), on the one hand at the intervening point ( 40 ) and, on the other hand, at a further diversion ( 42 ), via which a bridle line ( 44 ) is deflected whose end sections at the outer points of attachment ( 46 . 48 ) are attached. Tubekite according to claim 3, wherein the deflectors deflection rollers ( 36 . 42 ) are. Tubekite according to claim 3 or 4, wherein the path of the middle line ( 38 ) and / or the bridle line ( 44 ) is limited along the deflections via stoppers. Tubekite according to one of the preceding claims, with one at the front tube ( 2 ) attacking 5th line.