DE4405620A1 - Dirigible kite which can be used as an item of games and sports equipment - Google Patents

Abstract

Hitherto, only rigid frame constructions have been used as dirigible kites. In the case of these kites, there is only a limited size range within which they are sufficiently aerodynamic and mechanically stable to be able to fly under all wind conditions. The new model is intended to have good aerodynamic and mechanical properties irrespective of size. The dirigible kite is therefore divided into a rotor which provides lift and a stator which is responsible for stability and dirigibility. The two parts are connected to each other by strings and rods. Dirigible kite, which is more stable and has better and more sensitive dirigibility than those known hitherto.

Description

The usual design of stunt kites consists of a triangular or polygonal rigid frame made with paper, Plastic film, coated fabric, etc. covered and attached to two or more lines. It can several of these dragons also rigidly link together be bound (patent specification DE 40 07 159 C2).

With the help of the lines the frame is against the wind posed and directed by changing the inclination. Sta Bility is through a tail, special design of the frame and appropriate attachment of the lines he aims.

These kites should be as light as possible (um to fly even in weak wind); on the other hand is a high mechanical strength (against wind gusts) required; conflicting requirements gene.

Another variant of dragons consists of one flying wind turbine (laid-open specification DE 31 40 251), but that is not steerable and from a certain size a disproportionate amount of effort for mechanical Stability requires.

The invention is based on the problem of a light, mechanically and aerodynamically stable steering to create kites of all sizes maintains.

This problem is solved in that the Lenkdra Chen is built from two parts. As a wing a rotor is used which, for example, as with Seg elements made of conventional kite covering material Ring is formed. The rotor is in accordance with protection saying 1 connected to a stator. In example 1 is the stator is designed as a ring, in Example 2 as Bracing. The stator gives the necessary stability of the Stunt kite; by attaching two or more Lacing on the stator is the inclination of the kite changeable, it is steerable.  

By using cords as much as possible allows a lightweight construction. By number and arrangement of the cords and appropriate training of the seg elements is achieved that the stator also the rotor sta bilizes. The rotary motion of the rotor causes uniform forces apply to the stator and game gusts of wind are intercepted.

Referring to Figs. 1 to 4 are two execution examples.

example 1

Fig. 1: Length,

Fig. 2: longitudinal section.

The rotor consists of a support ring ( 4 ) made of a light material (e.g. carbon fiber reinforced plastic) and the wings ( 6 , 7 ) made of common kite covering materials (e.g. coated plastic fabric). The rotor is connected to the stator by plastic cords ( 5 ).

The stator consists of the central rod ( 1 ), the Hal tering ( 2 ) and reinforcing rods ( 10 ). These parts are made of light material (e.g. carbon fiber reinforced plastic). Central rod and retaining ring are connected to each other by plastic cords ( 3 ).

The holding cords ( 5 ) of the rotor are attached to the central rod ( 1 ) via three rotatable bearings ( 11 ).

The wing ( 6 , 7 ) consists of individual segments, the edges of which are designed differently ( 6 : short, tense gives the buoyancy, 7 : long, sagging gives the rotation of the ring). The segments are connected on the support ring ( 4 ) and on the other hand by means of tension cords ( 8 ) via the rotatable bearing ( 11 ) to the central rod ( 1 ): The final alignment is carried out by the wind and the rotary movement.

On the retaining ring ( 2 ) and the central rod ( 1 ), in the example at points ( 9 ), three holding cords are attached, with which the kite can be held and steered.

The wind impinging on the wings ( 6 , 7 ) of the rotor from the direction of the arrow gives the kite the necessary lift and rotates the rotor, whereby the kite is held in a defined position together with the three retaining cords. By changing the position of the retaining ring ( 2 ), the rotor can be rotated more or less from the wind, whereby the buoyancy (speed of climbing) and lateral drift (change of position, flying figures) can be controlled.

Example 2

Fig. 3: View,

Fig. 4: detail.

The kite consists, according to protection claim 2, in the game of 4 rotors designed as segment wheels ( 1 ). Each segment wheel is connected via holding cords ( 2 ) and two bearings ( 2 a) to a rod ( 3 ) which, together with struts made of lightweight materials (glass fiber or carbon fiber reinforced plastic) ( 4 ) and cords ( 5 ), gives the stator . At the points ( 6 ) the holding and steering cords are attached (4 pieces in the example), which enable the kite to be steered and controlled.

In the example, the segment wheel consists of a segment ring, the segment parts ( 1 a) of which give it the rotational movement (depending on the design of the edges, turning left or right) and a disc ( 1 b) that provides the buoyancy. The segment ring and washer, as components of the segment wheel, consist of the usual Drachenbespannma materials (e.g. coated plastic fabric) and are attached to a support ring ( 1 c) made of a light material (e.g. carbon fiber reinforced plastic).

The cords attached at points ( 6 ) are attached in pairs to the usual double handles and they allow a sensitive steering of the kite, which is so fully aerobatic suitable.

Claims (2)

1. As a play and sports device usable stunt kite, consisting of several connected parts, characterized in that the part which gives the buoyancy is designed as a rotor which is connected directly or indirectly with cords and / or rods to a stator which provides stability and steering ability guaranteed. 2. stunt kite according to protection claim 1, characterized, that also several rotors connected to a stator could be.