DE202015009651U1 - Valve and inflatable sports device with such a valve - Google Patents

Abstract

Valve for an inflatable sports device, in particular a Tubekite with a bladder, which is surrounded by an outer skin (8), with a valve core (4) which is connected directly or via a housing part with the Bladder and the one on an outer skin (8) attached Passed through the adapter ring (6) and with an insert (2) which is rotatably mounted in the valve core (4) and via which a valve body from a closed position in an open position can be brought, characterized by a fixing ring (16), which on one of the Outer skin (8) projecting portion of the valve core (4) is placed.

Description

The invention relates to a valve for an inflatable sports equipment, in particular a Tubekite according to the preamble of claim 1 and a running with such a valve sports equipment, in particular a Tubekite.

Tubekites typically have an upstream tube from which extend to a leading edge of struts which, together with the arcuately curved tube, span the canopy of the kite. The struts and the tube are filled with air, the filling and emptying being done by suitable valves. In modern constructions, the tube and struts are made in two layers from a highly resistant outer skin and an inner bladder, the latter being made of a relatively soft, air-impermeable material protected by the robust outer skin.

For filling or emptying the kite, the bladder is provided with at least one valve, which penetrates the outer skin and is closed after inflation.

Such valves are also used in inflatable SUPs or in inflatable rigs.

Especially in kites valves are often used, which have a similar structure as the check valves of air mattresses. An embodiment of such a valve for filling a kite is for example in the DE 20 2010 007 196 the applicant discloses.

A disadvantage of such solutions is that the valves have a comparatively small valve diameter, so that on the one hand an adapter must be used in order to be able to apply a pump usually used for filling kites. Even more serious is the disadvantage that the opening cross-section of such "air mattress valves" is low, so that the pressure loss and thus the effort when filling is considerable.

In the field of inflatable SUPs and also in the past few years in kite applications valves have prevailed, which have a much larger valve cross-section to simplify the filling.

A valve with an enlarged diameter is for example in the DE 20 2011 050 429 U1 disclosed. This document shows a valve which is designed with an adapter, via which the actual filling nozzle diameter of the valve is adapted to the diameter of the pump pressure port, more precisely the diameter of the hose bayonet of the pump. The valve is formed with an insert that is adjustable for filling and emptying to seal the valve or to release a large opening area.

In the case of the kites placed on the market by the applicant at the filing date of the present application, this adjustment takes place by turning the insert. This twisting can be done by hand or by applying the pump hose. However, care must be taken that the insert is returned to its closed position after filling to prevent unwanted emptying of the bladder when removing the pump. For additional sealing in this system, the valve is sealed with a valve cap.

A disadvantage of such valves, whose design is called by the Applicant "Airport valve", is that it can lead to a detachment of the valve from the bladder and a concomitant leakage in case of improper handling.

In contrast, the invention has for its object to provide a valve or an executed with such a valve inflatable sports equipment, in which the risk of incorrect operation or leakage is reduced.

This object is achieved by a valve having the features of claim 1 and a sports device according to claim 8.

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

The valve according to the invention, which is particularly suitable for a Tubekite, has a valve insert which is connectable directly or via a housing part with the Bladder and attached to the outer skin of Tubekites or sports equipment adapter ring which is penetrated by the valve core. In the valve insert an insert is rotatably mounted, via which a valve body can be brought from a closed position into an open position. To avoid twisting, the valve according to the invention is designed with a fixing ring, which can be placed on a protruding from the outer skin portion of the valve core.

This projecting portion is preferably designed as a threaded portion on which the fixing ring is screwed.

In one variant, the valve has a fixable on an outer skin of the sports equipment adapter ring, which is connected to a flange of the housing part is connectable. In this case, the adapter ring and the housing part, or the flange of the housing part are positively connected with each other in the direction of rotation. Through this positive connection between the inner housing part with the valve core and the outer adapter ring deformation / rotation of the outer skin and in particular the Bladder is reliably prevented during bonding, so that damage is prevented.

This form-fitting connection can be produced by forming projections on the adapter ring or on the flange of the housing part, which projections, in the mounted state, dive into corresponding recesses of the other component.

These projections / recesses are preferably designed such that an assembly is only possible in a single predetermined position.

The mounting precision and thus sealing of the valve is further improved when the adapter ring and the valve core are centered relative to each other by means of a centering device.

This centering can for example take place in that a centering ring is formed on the adapter ring or on the housing part, which engages in the mounted state in a corresponding centering of the respective other component, so that an exact position positioning of the valve insert takes place with respect to the adapter ring.

In an advantageous embodiment of the invention, an end-side sealing surface for a pump-side coupling piece is formed on the valve insert. That In this variant, the seal takes place on the one hand by attaching the pump hose to the bayonet and on the other by the frontal contact of the coupling piece of the pump hose to said sealing surface. This makes it possible to use pumps with different bayonet couplings, in which the tightness in the bayonet range is not guaranteed, but by the additional sealing surface is a reliable seal.

As explained above, the valve according to the invention is preferably used in an inflatable sports equipment, for example a kite, a SUP, an inflatable boat or an inflatable rig.

• 1 eine Weiterbildung einer erfindungsgemäßen Weiterbildung eines Ventils in einem Zwischenmontageschritt;
• 2 das nicht zur Erfindung gehörendes Ventil aus 1 in montiertem Zustand;
• 3 ein Ventil in montiertem Zustand;
• 4 eine Explosionsdarstellung des Ventils aus 3;
• 5, 6 Darstellungen des Ventils gemäß 3 in zerlegtem Zustand;
• 7 ein Ventilkörper des Ventils gemäß den 3 bis 6;
• 8 ein Gehäuseteil des Ventils gemäß den 3 bis 6 und
• 9 eine Vorderansicht eines pumpenseitigen Kupplungsstücks.

Preferred embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:

• 1 a development of an inventive development of a valve in a Zwischenmontageschritt;
• 2 the not belonging to the invention valve 1 in assembled condition;
• 3 a valve in the assembled state;
• 4 an exploded view of the valve 3 ;
• 5 . 6 Illustrations of the valve according to 3 in disassembled condition;
• 7 a valve body of the valve according to the 3 to 6 ;
• 8th a housing part of the valve according to the 3 to 6 and
• 9 a front view of a pump-side coupling piece.

Based on 1 and 2 a variant of a conventional valve of a kite according to the invention will be described. As explained, has such a valve 1 an insert 2 which is rotatable in a valve core 4 is mounted and via which a valve body, not shown, in the following case, a valve plate of a check valve from a closed position can be brought into an open position, so that the kite can be emptied. The valve insert 4 is attached directly or via a housing part to a bladder of the kite and penetrates one on the outer skin (Canopy) 8th attached adapter ring 6 , At this adapter ring 6 is over a molded hinge strip 10 a cap 12 attached. In the preassembled state according to 1 the valve insert protrudes 4 with a threaded section 14 from the adapter ring 6 out. On this thread section 14 can the in 1 Fixing ring shown on the right 16 be screwed on to the valve core 4 with reference to the adapter ring 1 to center. For this centering is on the adapter ring 6 one with the threaded section 14 executed, projecting in the axial direction centering ring 18 educated. The fixation ring 16 as shown in 1 on its adapter ring side large area on the geometry of the fixing ring 18 adjusted centering recess 20 according to 2 when screwing the fixing ring 16 the centering ring 18 engages positively, so that by the threaded engagement between the fixing ring 16 and the valve core 4 an exact position positioning of the valve core 4 with reference to the adapter ring 6 he follows.

Also visible in 1 is a recess 22 into the one in the 1 and 2 not shown housing part of the valve 1 or the valve core 4 with a projection dips to a relative rotation of housing part / valve core and adapter ring 6 to prevent. This training will be discussed in more detail below.

3 shows a not belonging to the present invention valve 1 in the assembled state, leaving the canopy 8th an actuating part of the valve 1 protrudes outwards.

The valve 1 exists according to 4 in principle, four main modules.

The valve insert 4 has a valve body designed as a valve body 24 who in 4 is shown in the open position and in sealing engagement with a valve seat 26 on a valve bush 28 can be brought. The actuation of the valve body 24 done via a pin 30 in the valve sleeve 28 is guided adjustable. The valve bush 28 of the valve insert 4 is in the radial direction to a sealing flange 32 extended, on which a circumferential sealing surface 34 is designed for a pump-side coupling piece. This coupling piece explained in more detail below is in a bayonet 36 of the valve insert 4 used.

To close the valve 1 can according to 4 a cap 38 be used. This has a coupling piece 40 , on the bayonet scenery 42 are formed in the corresponding bayonet cams 80 (please refer 3 ) of the bayonet 36 engage, leaving the cap 38 by turning reliably with the valve core 4 can be connected sealingly. To improve this seal can be attached to a lid 44 the cap 38 a seal is formed which abuts against the sealing surface 34 arrives. In the illustrated embodiment, such a circumferential sealing surface is not provided because the lid 44 only formed like a knob.

The adapter ring 6 is with the canopy 8th sewn and embraces a corresponding opening in this canopy so that the bladder is accessible. As explained, is on the adapter ring 6 the circumferential centering ring 18 educated. Furthermore, on the centering ring 18 three approximately rectangular recesses 22a . 22b . 22c educated. These recesses 22 a . b . c are unevenly formed on a common pitch circle. In the concrete embodiment, for example, two recesses 22a . 22b arranged relatively close to each other, while the third recess 22c this is arranged diametrically.

Bladderseitig is the above-mentioned housing part 46 provided that with a housing sleeve 48 penetrates a recess of the bladder and immersed in its interior. At the adapter ring side end portion of the housing sleeve 48 is a flange 50 provided on the three projections 52a . 52b . 52c are formed, whose geometry and position corresponding to that of the recesses 22a . 22b . 22c is chosen so that when mounting the three protrusions 52a . 52b . 52c fit into the corresponding recesses 22a . 22b . 22c plunge. In this way, a relative rotation of adapter ring 6 and housing part 46 and thus reliably prevents the canopy and the bladder, so that damage to the material during assembly or improper handling are almost impossible.

On the inner peripheral wall of the housing sleeve 48 is an internal thread 54 provided, with an external thread 56 the valve socket 28 combs. The valve body 24 immersed in the assembled state in the housing sleeve 48 and limited with its outer circumference and the adjacent inner circumference of the housing sleeve 48 the flow cross-section of the valve.

To improve the flow during ventilation of the kite are at the in 4 underlying end side of the housing sleeve 48 wave-shaped recesses or projections 57 intended.

5 shows a pre-assembly state with that with the canopy 8th sewn adapter ring 6 , the valve core 4 and the housing part 46 , in the illustration according to 5 not yet associated with the Bladder. The three in 4 visible projections 52a . 52b . 52c are at the in 5 underneath, invisible side of the flange 50 educated. In this illustration you can see well the undulating projections 57 , which optimize the flow cross section. According to 5 is the one with the valve body 24 connected pin 30 over a spring 58 biased in the direction of the closed position, in which the valve body 24 on the seat 26 sealingly rests. Recognizable in this representation is also the bayonet 36 , in which the coupling piece of the pump is used.

In the illustration according to 6 is the valve core 4 visible from the side. Accordingly, the valve body 24 from the valve seat 26 at the valve socket 28 lifted and thus locked in the open state. Also clearly visible in this view is the one opposite the valve bushing 28 Radially extended sealing flange 32 with its adapter ring side centering 20 into the mount ( 3 ) the centering ring 18 dips. That is, in this embodiment, so to speak, the fixing ring 16 according to the 1 and 2 in the valve core 2 , more precisely in the sealing flange 32 integrated.

7 shows the valve body construction in an individual view. As explained above, the valve insert is designed in a conventional manner as a push-push system, wherein upon actuation of the pins 30 in the arrow direction of the valve body 24 for example, in an open position can be brought. With a further actuation of the pin 30 in Arrow direction then becomes the valve body 24 brought back to its closed position in which he performs a kickback function. That is, when pressure builds up from the outside then the valve body 24 be opened by the effective pressure in the opening direction. This is done, for example, when applying and pressing the pump. When removing the pump, the valve body snaps 24 then in the check function due to the force of the spring automatically back to its closed position.

The push-push system or ballpoint pen principle is known, so that only the essential elements for understanding the invention will be explained. For adjustment are at the pin 30 a plurality of ramps, in the present case, four concrete ramps formed, of which only two with the reference numerals 60 . 62 are provided. These ramps each have an inclined surface 64 respectively. 66 , which can be brought into contact with corresponding wedge surfaces of a rotatably mounted feed bush, not shown, so that by conditioning the inclined surfaces 64 . 66 to the corresponding wedge surfaces the feed bush in the axial direction (arrow in 7 ) and rotated by one pitch step.

Valve body side is a suitably designed backdrop 68 formed, depending on the rotational position of the feed bush, the relative position of the valve body 24 with reference to the valve seat 26 certainly. That is, in a rotational position of the feed bush, the valve body is located 24 on the valve seat 26 on and can only in the non-return function of the valve seat 26 take off. In the next rotational position of the feed bushing then the valve body 24 from the valve seat 26 lifted and remains in its open position.

In simple words, by pressing the pins 30 the valve body 24 alternately open or in its return position (resting on the valve seat 26 ) brought. In this respect, the valve body construction does not differ from that of conventional solutions, as used for example in SUPs.

To improve the seal is on the outer circumference of the valve body 24 a ring seal 72 arranged.

8th shows an individual representation of the housing part 46 with its flange 50 and the immersed in the interior of the bladder housing sleeve 48 whose mouth region, as stated above, with the undulating projections 56 is trained. In this area, ie in the area in which after mounting the valve body 24 is arranged are on the inner peripheral surface of the housing sleeve 48 a plurality of mutually spaced support webs 70 formed the valve body 24 engage in the mounted state with comparatively small radial distance. The opening cross-section of the valve 1 is then correspondingly through the outer periphery of the valve body 24 and the inner circumference of the housing sleeve 48 limited, this annular gap on the plurality of supporting webs 70 is divided into a plurality of cross-sectional portions through which the air flows when filling in the direction of arrow in the interior of the bladder. Due to the lateral support of the valve body 27 over the support bars 70 is a damage to the valve 1 in a crash and an associated radial overloading of the valve body 24 reliably prevented.

The Applicant also reserves the right to make their own claim to the formation of support webs on a housing part or a valve insert.

A problem with conventional valves is that the geometry of the bayonet 36 is not standardized, so that a sealing system is not guaranteed by different pump manufacturers. In addition, commonly used for SUP pumps other bayonet geometries than for kite pumps are used, so that the systems are not compatible.

This disadvantage is inventively eliminated in that the seal is not, as in conventional systems, placed solely in the area of the bayonet but that on the pump-side coupling piece 74 in addition to the bayonet scenes 42 (please refer 4 and 9 ) nor a frontal sealing shoulder 76 is formed when attaching the coupling piece 74 in sealing contact with the sealing surface 32 of the valve insert 4 can be brought, so that even with a not exactly matching bayonet coupling a reliable seal is guaranteed. The sealing shoulder 76 may be provided with a seal, such as a sealing ring or the like. As a result, the valve is designed to fit both SUP and kite pump adapters (pump bayonets), allowing virtually any type of kite or SUP pump to be used without changing adapters.

Furthermore, the coupling piece 74 with a diagonal bridge 78 formed, whose axial position is selected so that the pin 30 when applying the coupling piece 74 to the bayonet 36 operated with a stroke corresponding to the lower closing stroke, in which only the longer ramp 60 in operative engagement with the corresponding wedge surfaces. That is, by attaching the pump, the pin 30 not be adjusted in its above-described opening position; This can only be done by active adjustment by hand or the like.

When using a kite running with the valve described above, it will be activated by actively adjusting the pin 30 emptied into this open position - the valve remains open. In a later inflating the kite then the coupling piece 74 attached to the pump and the pin 30 that's about the spring 58 is biased in a constant basic position, operated with the smaller stroke, so that the closing body 27 is brought into its setback position. An accidental complete opening of the valve body 24 is by attaching the coupling piece 74 also not possible if the valve is already adjusted to its return position before inflation.

Due to the corresponding design of the pump-side coupling piece 74 Thus, an incorrect operation can be reliably prevented. Furthermore, the double seal over the sealing shoulder 76 and the actual bayonet coupling ensures optimum sealing.

LIST OF REFERENCE NUMBERS

1

Valve

2

commitment

4

valve core

6

adapter ring

8th

Canopy

10

hinge strips

12

cap

14

threaded portion

16

fixing

18

centering

20

centering

22

recess

24

valve body

26

valve seat

28

valve sleeve

30

Pin code

32

sealing flange

34

sealing surface

36

bayonet

38

cap

40

coupling

42

bayonet backdrop

44

cover

46

housing part

48

housing sleeve

50

flange

52

head Start

54

inner thread

56

external thread

57

head Start

58

feather

60

ramp

62

ramp

64

sloping surface

66

sloping surface

68

scenery

70

supporting web

72

ring seal

74

coupling

76

sealing shoulder

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

• DE 202010007196 [0005]
• DE 202011050429 U1 [0008]

Claims (8)

Valve for an inflatable sports device, in particular a Tubekite with a bladder, which is surrounded by an outer skin (8), with a valve core (4) which is connected directly or via a housing part with the Bladder and the one on an outer skin (8) attached Passed through the adapter ring (6) and with an insert (2) which is rotatably mounted in the valve core (4) and via which a valve body from a closed position in an open position can be brought, characterized by a fixing ring (16), which on one of the Outer skin (8) projecting portion of the valve core (4) is placed. Valve after Claim 1 wherein the portion is a threaded portion (14) to which the fixing ring (16) is screwed. Valve after Claim 1 or 2 , wherein on the adapter ring (6) or on the valve insert (4) or on the housing part, a centering ring (18) is formed, which engages in a corresponding centering recess (20) of the respective other component. Valve after Claim 3 , wherein the centering ring (18) on the adapter ring (6) is formed and cooperates for centering with the fixing ring (16). Valve after Claim 3 or 4 , Wherein the fixing ring (16) has on its adapter ring side large area to the geometry of the centering ring (18) adapted centering recess (20). Valve according to one of the preceding claims, wherein on the valve insert (4) or on the housing part or on the adapter ring (6), a projection is formed, which engages in a recess (22) of the respective other component. Valve according to one of the preceding claims, wherein on the adapter ring (6) a closure cap (12) is attached. Inflatable sports device, in particular tube kite with a valve according to one of the preceding claims.

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