Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63H—MARINE PROPULSION OR STEERING
  • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
  • B63H8/10—Kite-sails; Kite-wings; Control thereof; Safety means therefor
  • B63H8/16—Control arrangements, e.g. control bars or control lines
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63H—MARINE PROPULSION OR STEERING
  • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
  • B63H8/10—Kite-sails; Kite-wings; Control thereof; Safety means therefor
  • B63H8/18—Arrangements for connecting the user to a kite-sail; Kite-safety means, e.g. chicken loops, safety leashes or quick release mechanisms
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63H—MARINE PROPULSION OR STEERING
  • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
  • B63H8/50—Accessories, e.g. repair kits or kite launching aids
  • B63H8/56—Devices to distribute the user's load, e.g. harnesses

Definitions

• the present invention relates to a sports device with a handle for holding and controlling the sports device and with a pulling device which is operatively connected to the handle and exerts a tensile force on the handle and a coupled object in an active state.
• Such sports equipment is known from the prior art e.g. as a stunt kite, parachute, paraglider, kite or even as a sports boat that pulls water skis.
• the present invention particularly relates to sports equipment in which the traction device is a stunt kite.
• So-called stunt kite kites are used to power kite (surf) boards, snowkiteboards, skis, buggies and other vehicles for sports purposes.
• the kite is equipped with several lines that are used to control the direction and speed of the flight movement and to regulate the angle of attack, i.e. the flow angle.
• the control lines are connected directly to a handle or a handlebar or bar.
• the lines for regulating the angle of attack are combined into a pulling line or depower line above the bar.
• This depower line is passed through an opening in the middle of the bar or through a sleeve fastened centrally to the outside of the bar and attached to the receptacle, i.e. a hook, an eyelet, a shackle or the like, of a trapezoidal belt tied around the body of a user.
• a sleeve fastened centrally to the outside of the bar and attached to the receptacle, i.e. a hook, an eyelet, a shackle or the like, of a trapezoidal belt tied around the body of a user.
• the user connects a safety line to one of the flying lines, e.g. on a trapezoidal hook, a shackle or a wrist, or with the brake lines, like a soft kite. If the user detaches himself from the bar and the depower line, he remains connected to the kite, which now has no traction
• the stunt kite generates lift forces through wind flow according to the hydrofoil principle, which are transmitted as tensile forces via the lines to the bar and to the user.
• the buoyancy-dependent tractive forces can be regulated by relative changes in length of the depower and stern lines.
• the control lines are relieved, the buoyancy is reduced by tilting or arching the kite profile, and the tensile forces are reduced.
• An additional dynamic buoyancy is created when the kite is set to its own movement on the left or right by one-sided line pull, i.e. a flight on a circular path with a radius in line length. With increasing kite flight speed, the dynamic buoyancy increases according to the BemouU principle. The forces acting on the user increase. Such a control impulse is intentionally generated at the start of the travel movement or to increase the travel speed.
• the user must release at least one hand from the handle or handlebar in order to reach the trigger. 2. After releasing the handlebar, the user must reach for the control unit in a targeted and thus controlled action and find it blind in order to be able to trigger the mechanism.
• the object of the invention is therefore to further develop a sports device of the type mentioned in the introduction so that a dangerous situation caused by a loss of control can be ended reliably and quickly.
• a safety device is arranged in the vicinity of the handle, which deactivates the pulling device when a threshold value of the pulling force is reached.
• the depower line has a cross section with different radii and is carried out by a safety device which is arranged in the vicinity of the handle and deactivates the pulling device when a threshold value of the pulling force is reached.
• the present invention according to claim 24 has the advantage that rotations of the handlebar with the attached and guided lines after rotation jumps or the like. can be twisted synchronously while maintaining the function of the safety device.
• Another advantage of the present invention is that the pulling device is deactivated as a function of a movement of the handle in an effective direction of the pulling force. To deactivate, the user only has to move the handle in the direction of action of the pulling force of the pulling device in order to actuate the trigger mechanism and to deactivate the pulling device.
• a further advantage is that the traction device can also be deactivated automatically by the safety device being triggered when a predetermined limit value is reached and the traction device being deactivated. This can be provided as an alternative or in addition to the motion-dependent deactivation, e.g. to enable safer training.
• Another advantage according to claim 25 is that the safety line in the depower line is passed through the handle. As a result, the safety line runs in a controlled way so that twisting and untwisting are not hindered.
• the cross section of the depower line is polygonal.
• the polygonal cross-section ensures that the depower line and the handle with the lines attached to it rotate in unison.
• the cross section of the depower line is triangular.
• the depower line is supported on the large areas of the triangular cross section against jamming against self-rotation and forced to twist.
• FIG. 1 shows a schematic partial view in cross section of a handle in the area of the passage of a line or depower line and with a safety device according to the invention
• FIG. 2 shows a schematic partial view in cross section of a second embodiment of the present invention
• FIG. 3 shows a schematic view of a sports device according to the present invention, to which the handle from FIG. 1 or FIG. 2 is attached;
• FIG. 4 shows a schematic plan view of a user who uses the sports device according to the invention and engages the handle with his hands, the solid lines showing an active operating situation and broken lines showing an inactive situation and movement arrows schematically representing the deactivation process;
• FIG. 5 shows a schematic illustration of a depower line according to the invention
• FIG. 6 shows a schematic illustration of a second embodiment of the safety device
• FIG. 7 shows a schematic illustration of a third embodiment of the safety device
• FIG. 8 shows a schematic top view of the sports device according to the invention in a third embodiment
• FIG. 9 shows a schematic illustration of a stunt kite system according to the invention
• 10 shows a detailed illustration of the embodiment according to FIG. 9;
• FIG. 11 shows a schematic illustration of a fourth embodiment of the safety device.
• Fig. 12 is a schematic representation of a fifth embodiment of the safety device.
• a handle s is designed as a handlebar and has a through opening 3.1 in its center.
• the side of the handle 3, which lies above the handle 3 in FIG. 1, is the so-called pull side, that is to say the side which faces a pulling device 5 (FIG. 3) acting on the handle 3.
• the side which lies below the handle 3 is the side which faces a trapezoidal belt, object or user 7 (FIG. 3).
• a safety device 9 is arranged on the handle 3. If the pulling device 5 in an active state, that is, exerts a pulling force on the handle 3 during operation of the sports device 1 and a threshold value is reached, the safety device 9 deactivates the pulling device 5. In the present embodiment, the deactivation takes place by decoupling the force on the the handle s and the user 7 acting tensile force. The deactivation can optionally be triggered by the user during operation, that is to say the threshold value can be a subjectively perceived value for each user 7. The deactivation of the pulling device 5 is triggered manually as a function of a movement of the handle 3 in an effective direction of the pulling force (FIG. 4).
• the deactivation of the traction device 5 can also be triggered automatically as a function of reaching a predetermined limit value for the traction force. It is possible to set the limit value of a pulling force before starting operation. This can be done, for example, depending on the performance of the user 7. A criterion for performance can be the level of training on the sports equipment but also the age of the user and his weight.
• the safety device 9 is arranged on a leash 11 which is guided through the opening 3.1 in the handle 3. The safety device 9 is arranged on the line 11 in the effective direction of the tensile force close to the handle behind the handle, that is, on the pull side in FIG. 1.
• close proximity is meant such a proximity that in the case that the object 7 is a User is a maximum of one arm length of the user. The distance is adjustable. The effective proximity should be such a proximity that the handle 3 can still act on the safety device 9 with one movement.
• the safety device 9 has an inner tensioning element 9.1 and an outer tensioning element 9.2 which are prestressed against one another in an effective direction of the tensile force and are arranged such that they can be displaced relative to one another against the prestressing.
• the outer clamping element 9.2 has a flange 9.3 on the handle side, which surrounds the outer clamping element 9.2 in a ring shape and forms an abutment surface for the handle 3 on the handle side.
• the flange 9.3 merges on the tension side into a sleeve part 9.4 which, with an inner wall, slidably abuts an outer wall of the inner clamping element 9.1.
• the sleeve part 9.4 which, with an inner wall, slidably abuts an outer wall of the inner clamping element 9.1.
• the spring element 9.5 is a helical spring with a uniform spring constant. It is conceivable that the spring element 9.5 has a varying spring constant, so that the spring force can be adjusted via an adjusting mechanism (not shown).
• the inner clamping element 9.1 has an extension 9.6 on its circumference, which closes the receiving space formed between the sleeve part 9.4 and the clamping element 9.1 on the pull side.
• the inner clamping element 9.1 is sleeve-shaped and has a first inner annular groove 9.7 on its handle-side end.
• the inner clamping element 9.1 also has a second internal annular groove 9.8 at its end on the traction side.
• the line 11 has a first pull-side line part 11.1, which is connected at a free end 11.2 to a pin 11.3, which is seated in a form-fitting manner in the annular groove 9.8.
• a clamping element 9.9 is attached to the tension-side end of the inner tensioning element 9.1 and is generated a clamping voltage such that the pin 11.3 is firmly clamped in the annular groove 9.8.
• the clamping element 11.3 can be a clamping nut, for example.
• the line 11 also comprises a second user-side line part 11.4, which has a release pin 11.6 at its free end 11.5, which in the present embodiment is identical to the pin 1.3.3.
• the release pin 11.6 sits in a form-fitting manner in the first annular groove 9.7 and is firmly clamped there by the outer clamping element 9.2.
• the line 11 or the line parts 11.1 and 11.4 as well as the pins 11.3 and 11.6 are hollow or have a central passage in which a safety line 13 runs.
• a movement of the handle 3 in Figure 1 upwards, that is, in the direction of the tension element 5 or in the direction of action of a tensile force leads to the handle s overcoming the knitting distance and abutting the surface 9.4 of the flange 9.3 and the outer tensioning element 9.2 in Figure 1 pushes upward against the biasing force of the spring 9.5.
• the clamping tension on the first annular groove 9.7 and the release pin 11.6 located therein is removed, so that the user-side line part 11.4 of the line 11 slips out of the first ring groove 9.7 and is released from the non-positive connection with the line side line part 11.1.
• the tensile force is then decoupled.
• the line 11 is not divided and only an annular groove 9.8 or 9.7 is formed in the inner tensioning element 9.1, in which a projection formed on the line is firmly seated.
• the other trigger mechanism can remain identical to that described above.
• the line 11 would have to have a line supply from the annular groove on the user side, which leads to a temporary decoupling of force in the event of a release.
• Such an embodiment can be used where such a temporary force decoupling is sufficient to regain secure control of the sports device 1.
• FIG. 2 A second embodiment of the safety device 9 is shown schematically in FIG.
• the outer clamping element 9.2 has a groove recess in a region 9.10, which is preferably wedge-shaped.
• the inner clamping element 9.1 has a recess 9.11 on its circumference, in which a clamping wedge 9.13 is pivotally arranged on a ring element 9.12.
• the trigger pin 11.6 has on its Um- catch an annular groove 11.7, which forms an edge 11.8 on the tension side.
• the clamping wedge 9.13 abuts the edge 11.8 of the annular groove 11.7.
• the clamping wedge 9.10 rotates from the locking position in the annular groove 11.7 of the pin 11.6 into the wedge-shaped groove recess 9.10 and releases the line part 11.4 on the user side.
• the function of the exemplary embodiment described in FIG. 2 for the application of the invention differs from the exemplary embodiment in FIG. 1 in the type of locking mechanism. If the connection between the upper and lower part of the line 11.4 is intended, in the exemplary embodiment according to FIG. 1 the outer tensioning element 9.2 must first be pushed upwards in the direction of the tensile force before the release pin 11.6 against the spreading resistance of the end of the inner tensioning element on the handle side 9.1 can be inserted into the annular groove 9.7. The outer tensioning element 9.2 must therefore be moved relative to the inner tensioning element 9.1 against the force of the spring 9.5.
• the release pin 11.6 can be inserted into the inner tensioning element 9.1 without the outer tensioning element 9.2 having to be actuated.
• the release pin 11.6 presses the clamping wedge 9.10 in a rotational movement upwards and laterally against a spring tongue 9.14 in the groove recess 9.10 and thus releases the opening of the inner clamping element 9.1.
• the release pin 9.6 is pushed over the tip of the clamping wedge 9.10 into the opening of the inner clamping element 9.1, the spring tongue 9.14 presses the clamping wedge 9.13 back and locks the release pin 11.6 in the position shown in FIG. 1.
• FIG. 5 schematically shows a further development of the line 11.4 between the user 7 and the safety device 9.
• the handle 9 with its through-opening 3.1 and the line part 11.4 and the safety line 13 guided in it by the user offers the possibility of being able to turn it freely after jumps in rotation or similar maneuvers.
• the line 11 is a so-called depower line, which in the prior art has a circular cross section.
• the depower line part 11.4 is provided at least on the user side with a cross section which has different radii.
• the cross section is shown triangular. In other embodiments, the cross section can be polygonal or oval.
• the depower line 11 By forming at least the depower line part 11.4 with an uneven radius and in particular by designing the cross section in the form of a triangle, the depower line 11 will rotate synchronously when the handlebar is unscrewed, since a rotational relative movement is hindered by positive locking.
• Such a depower line 11 or such a depower line part 11.4 with a cross section that has different radii can be combined with the embodiments in FIGS. 1 and 2.
• FIGS. 6 to 12 Further embodiments of the present invention and schematic representations are shown in FIGS. 6 to 12.
• FIG. 9 A further embodiment of the safety device 9 is shown schematically in FIG. Compared to the embodiment shown in Figure 1, the lower part 9.7 of the inner clamping element 9.1 is designed as a pin. Correspondingly also in reverse to the embodiment according to FIG. 1, the connection to the lower part of the towing line 11.4 is designed as a "throw 11.6".
• a movement of the handle 3 upwards, in the direction of the tension element 5, then leads, as in the embodiment in FIG. 1, to the handle 3 overcoming the effective proximity to the safety device 9 and to the surface 9.4 of the flange 9.3 abuts and the outer tensioning element 9.2 moves upward against the biasing force of the spring 9.5.
• the spring stop 9.6 of the inner clamping element 9.1 is designed as a threaded sleeve, which is turned onto a thread in the upper circumference of the inner clamping element 9.1 and thus allows the spring 9.5 used to be individually preset.
• FIG. 7 shows a further developed embodiment of the safety device 9 corresponding to the first embodiment in FIG. 1.
• the release sleeve 9.2 is provided with an expandable diameter constriction 9.14 at the upper end.
• both elements are locked against one another against the bias of the spring 9.5 by latching the diameter constriction 9.14.
• the space 9.15 required to expand the lower part of the inner sleeve 9.1 is created with a bore in the lower part of the outer sleeve 9.2.
• the release pin 11.6 is polygonal on the outside (not round) to prevent relative rotations to the inner sleeve 9.1.
• the expandable inner sleeve lower part 9.7 is divided several times in accordance with the shape of the release pin 11.6. The corners of the release pin 11.6 can engage in the spaces between the multiply divided inner sleeve lower part 9.7.
• FIG. 8 shows a schematic plan view of a user who uses the sports device according to the invention and attacks the handle with his hands, the solid lines showing an active operating situation and the dashed lines showing an inactive situation and movement arrows representing the deactivation process in a schematic manner.
• the functional diagram takes into account a connection to the handlebar 3 with a cuff or shackle release system 20 known from the prior art through the lines 18.
• the release mechanism 20 is activated by the line 18 transmitted traction automatically operated.
• the safety line 13 guided through the center of the depower line 11 remains connected to the user 7.
• Control lines 4 slide up along the safety line 13.
• the stunt kite 5 drops without pressure.
• cuff or shackle systems already known in the prior art, some of which are commercially available, can also be activated by actively pushing the handlebar 3 away from the handlebar 5 or depending on the setting by simply releasing your hands from the handlebar 3 can be reliably decoupled.
• FIG. 9 schematically shows a stunt kite system which, in the variant shown, can be transferred to all further described embodiments.
• the length adjustment element 12 in the embodiment shown here becomes below the handlebar 3 inserted into the depower line 3. This creates the possibility of connecting one of the front lines 2.1 as a continuous safety line to the releasable bottom line part 11 when the safety device 9 is used at the same time.
• the use of an additional safety line 13 is not necessary in this embodiment. If the safety device 9 is triggered, the handlebar 3 with the control lines 4 attached to it and the safety device 9 with the second front line 2.2 fastened to its upper part slide on the front line 2.1 passing through as a safety line. device of the stunt kite 5.
• Figure 10 shows a detailed diagram of the embodiment of Figure 9 with the connection of the front line 2.2 to the upper part of the inner tensioning element 9.1 of the safety device 9 and the front line 2.1 as a continuous safety line with connection to the release pin 9.7 of the depower line 11 and the integration of the length adjustment element 12 of the depower line below the handlebar 3.
• FIG. 9 A further, further developed embodiment of the safety device 9 is shown schematically in FIG. Instead of the screws 9.5 used in the previous design variants, an elastomer spring 9.5 is used in this embodiment, which can be adapted in different Shore hardnesses to individual requirements of the release force.
• the exchangeable elastomer spring 9.5 is stretched between the release sleeve 9.2 and the inner sleeve 9.1.
• Trigger sleeve 9.2 and inner sleeve 9.1 are joined together with the aid of an outer diameter extension at the lower end 9.7 of the inner sleeve 9.1.
• the expandable lower part 9.7 of the inner sleeve 9.1 is pressed together when the release pin 11.6 is removed.
• the spring 9.5 and the outer sleeve 9.2 are pushed over the compressed inner sleeve lower part 9.7.
• the components are locked by relaxing the elastic deformation of the expandable inner sleeve lower part 9.7.
• a short connecting line leads through a hole 9.11 in the upper cover of the inner sleeve 9.1 and is secured with a knot to prevent it from slipping.
• the other front line is a continuous safety line through the second Drilled hole in the upper cover of the inner sleeve 9.1 and connected at the end of the bottom of the depower line 11 in the cutout of the release pin 11.8.
• the recess for receiving the expandable inner sleeve lower part in the lower part of the outer sleeve is made, as already described with reference to FIG. 7.
• the polygonal, oval or non-round shape of the release pin 11.6 with adapted shape of the expandable lower part 9.7 of the inner sleeve 9.1 is carried out according to the descriptions with reference to FIG. 7.
• FIG. 12 shows a further embodiment of the safety device 9, which is similar to the described embodiment according to FIG. 11.
• the elastomer spring 9.5 used is glued to the bottom and top with disks 9.16 drilled in the center.
• the spring element consisting of elastomer spring 9.5 and glued-on disks 9.16, is screwed through the upper cover of the inner sleeve 9.1 to the inner sleeve 9.1.
• the second disk 9.16 on the lower part of the elastomer spring 9.5 is screwed to the release sleeve 9.2.
• the embodiment shown here takes into account the use of an additional safety line 13, which passes through the hole 9.11 in the cover on the top of the inner sleeve 9.1 and is connected to the end of the lower line 11 in the recess of the release pin 11.6 becomes.
• the upper part of the towing line, to which the length adjustment device 12 connects on the side facing the stunt kite 5, is connected to a bracket which is attached to the top of the cover of the inner sleeve 9.1.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Ocean & Marine Engineering (AREA)
• Steering Devices For Bicycles And Motorcycles (AREA)
• Emergency Lowering Means (AREA)
• Orthopedics, Nursing, And Contraception (AREA)
• Motorcycle And Bicycle Frame (AREA)
• Professional, Industrial, Or Sporting Protective Garments (AREA)

Applications Claiming Priority (7)

Publications (3)

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ID=32600537

Family Applications (1)

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• 2003
  • 2003-12-12 AT AT03785593T patent/ATE344096T1/de active
  • 2003-12-12 ES ES03785593T patent/ES2276141T5/es not_active Expired - Lifetime
  • 2003-12-12 EP EP03785593A patent/EP1569726B2/fr not_active Expired - Lifetime
  • 2003-12-12 DE DE50305607T patent/DE50305607D1/de not_active Expired - Lifetime
  • 2003-12-12 WO PCT/DE2003/004200 patent/WO2004054659A2/fr not_active Ceased

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