DE202010008687U1 - safety device - Google Patents

Abstract

Safety device for a kite with a chicken-loop, which is releasably connectable to a harness hook and with a trigger mechanism that locks in an open position, an end portion of the loop and in a release position, the end portion of the loop free, wherein rotatably mounted on a base body, a rotor head is, which is penetrated by at least a fifth line and connected to at least one depower line, characterized in that the rotor head (20) in the axial direction adjustable on the base body (22) is mounted so that it is non-positively or positively with the body (22) is in operative engagement and is released under load the positive or positive connection.

Description

The invention relates to a safety device for a kite according to the preamble of claim 1.

Such a safety device usually has a chicken loop which can be connected to a harness hook of a trapezoidal belt and which can be opened by means of a release mechanism in an emergency. The safety device is usually connected via a central train or depower line with two kites of the kite that converge in a V-shaped manner, while two backlines or control lines are connected to the two ends of a bar, which is displaceable along the central depower line. In some constructions, the kite is designed with a so-called 5th leash, which intersperses the bar with the depowerline and remains connected to the surfer when opening the chicken loop and releasing the bar. Such a system with 5th line is for example in the EP 1 644 244 B1 described.

The angle of attack of the kite can be adjusted via an adjuster, over which in principle the effective length of the depower line connecting the two front lines can be changed. In some constructions, this depower line is formed below the adjuster by two line sections which extend through the bar and are fixed to a rotor head rotatably connected to the chicken loop. In the 5-rope systems described above, this is routed through the bar and rotor head to the surfer. The implementation of the depowerline or Depowerline sections and the 5th line through the bar is carried out by a respective leash associated bushings, with that for the 5th line is centered.

The rotor head makes it possible, after flying a loop or a rotation jump, to unwind the depowerline sections that wrap around the central safety line or, depending on the construction, the only depowerline, so that the kite can remain manoeuvrable even after several such maneuvers.

In so-called unhooked maneuvers, the chicken loop is unhooked from the harness hook, with the surfer holding the bar, so that the now loose chicken loop with the rotor head comes into contact with the bar. In this state, the chicken loop should remain as possible in the predetermined relative position to the bar, so that the re-hooking the chicken loop after the unhooked maneuver can be done easily. By the applicant under the brand "Ironheart ^® " distributed a safety device in which the bar facing end face of the rotor head is provided with a profiling that dips in unhooked maneuver in a corresponding recess of the bar, so that the rotor head with respect to Bar is fixed in a sense.

Nevertheless, it can happen with these solutions that during the unhooked maneuver, the chicken-loop is twisted and thus the re-hooking while driving is difficult and thus the surfer is at risk.

In contrast, the present invention seeks to provide a safety device that allows easy removal of the lines and even after an unhooked maneuver allows easy re-hooking in the harness hooks.

This object is achieved by a safety device having the features of claim 1.

Advantageous developments of the invention are the subject of the dependent claims.

According to the invention, the safety device for a kite has a loop which is releasably connectable to a harness hook and which is designed with a trigger mechanism which locks in a closed position an end portion of the loop and in a release position, the end portion free. The safety device further has a rotor head which is rotatably mounted on a base body of the safety device to which the loop is fixed. The rotor head is penetrated by a 5th line and is connected to at least one depower line. According to the invention, the rotor head is adjustably mounted in the axial direction on the base body, so that it is non-positively or positively connected to the base body during a release and this engagement between the rotary head and the base body is released under load.

With such a construction, the rotor head is thus easily rotatable with respect to the main body when the chicken-loop is suspended and the tensile load of the safety device is correspondingly high. When unhooking the chicken loop during an unhooked maneuver and corresponding relief of the chicken loop, a positive or positive engagement between the rotor head and the base body is produced, so that the chicken loop with respect to the rotor head is largely fixed in position. The rotor head rests against the bar, for example, with the profiling described above, so that the chicken loop also retains its relative position to the bar and the surfer can unhook the chicken loop without any problems after the unhooked maneuver.

In one embodiment of the invention, the rotor head has an elastic member which biases a rotor-head-side engagement surface against a body-side engagement surface in order to produce the operative engagement and is deformed under load such that the engagement surfaces are spaced apart from each other and thus the operative engagement is released.

In a variant of the invention, the elastic element is a rubber.

The elastic member may be a rubber ring through which a part of the body extends.

This main body can be immersed with a flange-like collar in the rotor head, wherein the collar abuts with an end face on the elastic element, on the other hand supported on the rotor head.

This support can be done for example directly or indirectly via a rotary bearing arrangement.

The engaging engagement surfaces on the rotor head and on the main body can be designed as end faces or end face sections. According to the invention, it is preferred if the operative engagement takes place frictionally.

The rotor head can be designed with an end profile for engagement with a corresponding profile of a bar.

In one embodiment of the invention, the bar has a passage for the 5th line and a depower line or two depower line sections.

A preferred embodiment of the invention will be explained in more detail below with reference to schematic drawings. Show it:

1 a schematic diagram of a bar with a safety device according to the invention;

2 a plan view of the safety device 1 ;

3 a section along the line BB through the safety device according to 2 ;

4 a detail C of the safety device 3 and

5 the detail C with hinged in a harness hook safety device.

1 shows a safety device 1 a bar 2 on which an unillustrated kite can be controlled. This usually has two V-shaped converging frontlines and two backlines or control lines, whose end sections 4 . 6 with the bar 2 are connected. The two frontlines are connected to a shared depowerline that leads to an adjuster, not shown, of which two depowerline sections 8th . 10 by one implementation (see 2 ) the bear 2 passed through. The kite also has a 5th leash 12 attached, also by the bar 2 passed through and attached via a Safetyleash not shown on the surfer.

This attachment is via a ring 14 , on the one hand, on the 5th leash 12 is attached and on the other hand with the Saftyleash (not shown) is connected.

The safety device 1 has a chicken loop 16 that have a trigger mechanism 18 held in a closed position or released from the harness hook can be released.

The two depowerlines 10 are at a rotor head 20 the safety device 1 attached, which in turn rotatably on a base body 22 is stored. This rotorhead 20 and the main body 22 become as shown in 1 from the 5th leash 12 interspersed.

2 shows a plan view of the safety device 1 according to 1 , You recognize the rotor head 20 , in the bar 2 pointing face 24 three breakthroughs 26 . 28 . 30 lead. The 5th leash 12 intersperses the middle breakthrough 28 while the two depowerline sections 8th . 10 in the respective associated outer openings 26 . 30 are attached. In 2 Furthermore, one recognizes a sliding sleeve 32 of the triggering mechanism 18 as well as part of the chicken loop 16 and a chicken dick 34 with which the chicken loop 16 can be secured on the harness hook, not shown. The sliding sleeve 32 can in the illustration according to 1 to open the chicken loop 16 along the main body 22 towards the bar 2 be moved, in which case an end section of the chicken loop 16 is released.

3 shows a section along the line BB through the safety device 1 according to 2 , Accordingly, an end portion 36 the chicken loop 16 with a base 38 of the basic body 22 connected. The other end section has an eyelet 40 in the illustrated closed position of the chicken loop 16 about a pivoting at the base 38 mounted pivot lever 42 at the base body 22 is held. This one axis 44 swiveling swiveling levers 42 is over the spring-biased sliding sleeve 32 held in the illustrated closed position, the pivot lever 42 partially overlaps and holds in its closed position. To trigger the chicken loop 16 becomes the sliding sleeve 32 towards the rotor head 20 (Push release) moved, leaving the pivot lever 42 comes free and swings in the direction of the arrow and thus the eyelet 40 and with it the chicken-loop 16 free. More details of this chicken loop 16 are described, for example, in the publication "Bar 11 User Manual" which can be called up by the applicant at www.northkites.com.

Details of the rotor head 20 are based 4 which gives an enlarged view of the detail C in 3 shows. Accordingly, the main body has 22 a firmly connected to this inner sleeve 46 that with a flange collar 48 from the main body 22 cantilevered and their interior 50 related to the central breakthrough 28 of the rotor head 20 is aligned so that the 5th leash 12 through the interior 50 can be passed through. The flange-like collar 48 lies with an inner annular end face 52 on a rubber ring 54 on, of the inner sleeve 46 is interspersed and peripherally in a recording 56 a rotor head housing 58 is used. This rubber ring 54 lies with his from the face 52 distant end face directly or indirectly at a warehouse 60 on, which is also the inner sleeve 46 encompasses and into the recording 56 is used. This camp 60 may for example be an axial ball bearing. In principle, however, other types of rolling bearings or a plain bearing are possible.

The warehouse 60 in turn lies on a caseback 62 of the multi-part rotor head housing 58 on. Its end face is as an engagement surface 64 formed, which is frictionally engaged in the illustrated basic position in operative connection with a corresponding end-side engagement surface 66 of the basic body 22 , This is - as explained above - tensile strength with the inner sleeve 46 connected so that the two engaging surfaces 64 . 66 through the over the rubber ring 54 applied biasing force are pressed against each other. This relative position arises, for example, when the chicken loop is released 16 a, because then none in the illustration according to the 3 and 4 downward pulling force on the body 22 and the inner sleeve 46 acts, so that the spring force of the rubber ring 54 sufficient for the two engagement surfaces 64 . 66 frictionally connect with each other.

By this frictional engagement is an unintentional relative rotation between the body 22 and rotor head 20 prevented. This attacks when not hinged chicken loop 16 with his front side 24 positively in a corresponding receptacle 68 (please refer 1 ) the bear 2 one, so the chicken loop 16 related to the bar 12 fixed to a certain extent.

When hanging the chicken loop 16 in the harness hook is due to the force applied by the kite a tensile stress on the body 22 transferred, so that this against the bias of the rubber ring 54 down (view according to 4 and 5 ) is moved. This will according to 5 the rubber ring 54 compressed, so that corresponding to the inner sleeve 46 and the main body 22 by the amount of compression in the axial direction down (see 5 ) and the engagement surface 66 of the basic body 22 from the associated engagement surface 64 of the case bottom 62 of the rotor head housing 58 lifts and thus the frictional closure is lifted. By this lifting, the rotor head 20 free relative to the main body 22 be rotated, for example, to turn off the lines in the manner described above. When pulling the chicken-loop 16 is also the positive engagement between the bar 2 and the rotor head 20 lifted, because the rotor head 20 then spaced to the bar 2 is arranged.

In the illustrated embodiment, a rubber ring 54 used. Of course, other elastic elements, such as a spring assembly, a metallic spring element or other compressible in the axial direction spring elements can be used. Instead of the frictional engagement of the engagement surfaces 64 . 66 can also be provided a positive engagement with a compatible profiling, such as a Verrasterung.

Disclosed is a safety device for a kite. The safety device has a chicken loop with a rotor head, this is mounted in the axial direction adjustable on a base body of the safety device.

LIST OF REFERENCE NUMBERS

1

safety device

2

bar

4

control line

6

control line

8th

depower line

10

depower line

12

5th line

14

ring

16

Chicken Loop

18

triggering device

20

rotor head

22

body

24

front

26

breakthrough

28

breakthrough

30

breakthrough

32

sliding sleeve

34

Chicken dick

36

end

38

Base

40

eyelet

42

pivoting lever

44

axis

46

inner sleeve

48

collar

50

inner space

52

face

54

rubber ring

56

admission

58

Rotor head housing

60

camp

62

caseback

64

engaging surface

66

engaging surface

68

admission

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1644244 B1 [0002]

Claims (11)

Safety device for a kite with a chicken-loop, which is releasably connectable to a harness hook and with a trigger mechanism that locks in an open position, an end portion of the loop and in a release position, the end portion of the loop free, wherein rotatably mounted on a base body, a rotor head is, which is penetrated by at least a fifth line and connected to at least one depower line, characterized in that the rotor head ( 20 ) in the axial direction adjustable on the base body ( 22 ) is stored in such a way that it is non-positively or positively connected to the basic body ( 22 ) is in operative engagement and is released under load the positive or positive connection. Safety device according to claim 1, wherein the rotor head ( 20 ) has an elastic element, over which a relief on a rotor head side engagement surface ( 64 ) against a body-side engagement surface ( 66 ) is biased under load and is deformed so that the engagement surfaces ( 64 . 66 ) come out of action. Safety device according to claim 2, wherein the elastic element ( 54 ) consists of rubber or other polymer material. Safety device according to claim 3, wherein the elastic element is a ring ( 54 ). Safety device according to claim 2, 3 or 4, wherein the basic body ( 22 ) a flange-like collar ( 48 ), which is in the rotor head ( 20 ) and which abuts with an end face on the elastic element, on the other hand on the rotor head ( 20 ) is supported. Safety device according to claim 5, wherein the basic body ( 22 ) the elastic element ( 54 ) interspersed. Safety device according to claim 5 or 6, wherein the rotor head ( 20 ) about a warehouse ( 60 ) on the base body ( 22 ) is stored. Safety device according to Claim 2 or one of the claims appended to Claim 2, wherein the engagement surfaces ( 64 . 66 ) at the front side of the rotor head ( 20 ) or on the base body ( 22 ) are formed. Safety device according to one of the preceding claims, wherein the operative engagement between basic body ( 22 ) and rotor head ( 20 ) takes place frictionally. Safety device according to one of the preceding claims, wherein the rotor head ( 20 ) an end profile for abutment with a corresponding receptacle ( 68 ) a bar ( 2 ) Has. Safety device according to claim 10, wherein the bar ( 2 ) one implementation for the 5th line ( 12 ) and for at least one depowerline ( 8th . 10 ) Has.

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