WO2016059179A1

WO2016059179A1 - Valve, inflatable sports device having a valve and a pump

Info

Publication number: WO2016059179A1
Application number: PCT/EP2015/073930
Authority: WO
Inventors: Aurélien Mierswa
Original assignee: Boards & More Gmbh
Priority date: 2014-10-15
Filing date: 2015-10-15
Publication date: 2016-04-21
Also published as: DE202015009651U1; DE102015105719A1

Abstract

The invention relates to a valve for an inflatable sports device, an inflatable sports device comprising a valve of this type and a suitable pump, which are designed in such a manner that a stroke required for permanently opening the valve is greater than a stroke for adjusting the valve into its closing/non-return position.

Description

Valve, inflatable sports equipment with a valve and pump

description

The invention relates to a valve for an inflatable sports device according to the

The preamble of claim 1 and a running with such a valve sports equipment and a pump for filling such a sports equipment.

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 exemplary embodiment of such a valve for filling a kite is disclosed, for example, in DE 20 2010 007 196 of the applicant.

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 recent years in kiting applications, valves have prevailed that are much larger

Have valve cross-section to simplify the filling.

An enlarged diameter valve is disclosed, for example, in DE 20 201 1 050 429 U1. 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 which is adjustable for filling and emptying to seal the valve or a large one

Release opening cross-section.

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 is at this

System sealed the valve with a valve cap.

In SUPs valves have prevailed in which the valve body is adjusted to empty by hand in an open position. When filling, however, care must also be taken that the valve disc is moved back so that the non-return function of the valve is activated. Some concepts do this

Adjustment by twisting and axial displacement of the pin. In other systems, a push-push system is realized, which operates on the ballpoint pen principle, with an adjustment stroke, for example, in the opening direction and at the next stroke a provision of the valve body is made so that this only in his Checkback function works.

Since the inflation pressure in SUPs is significantly greater than that of kites, SUPs use other pumps, which usually have a larger pump port than the one used in SUPs those of kite pumps have, so that the respective connections are not compatible.

All these systems have the problem in common that after filling must be ensured that the valve is in its closed position and thus a reliable seal is ensured. This can only be achieved in the known systems by proper handling and checking the position of the valve body.

In contrast, the present invention seeks to provide a valve or a run with such a valve inflatable sports equipment and a suitable pump in which the risk of incorrect operation is reduced.

This object is achieved by a valve having the features of claim 1 and a sports device according to claim 1 1 and a pump having the features of claim 12.

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

The valve according to the invention is suitable for an inflatable sports device, for example a kite, a SUP or an inflatable rig or the like. The valve has a valve insert which is designed in the manner of a check valve. This

Valve insert is designed with a valve body which is biased against a valve seat formed on a valve seat in a closed position and for filling or emptying in an open position and then back into the closed position can be brought, in each case by a standing with the valve body in operative connection pin in the axial direction is pressed. The valve insert is further formed with a bayonet for attaching a pump. The term "bayonet" is understood to mean any coupling piece, which is a detachable attachment of a pump or a

Pump hose to the valve insert allows.

According to the invention, the opening stroke for effecting an adjustment of

Valve body in the direction of its opening position greater than the stroke to effect a Adjustment of the valve body formed in the closing direction. Thus accidental opening of the valve body is possible only by active driving through the larger stroke. This construction is particularly advantageous if, for example, when attaching a pump, the valve body is actively actuated only with the smaller stroke, so that there is always only one adjustment or release / provision in the closing direction. The adjustment into the opening position must be targeted by the larger stroke.

For example, in one embodiment of the valve according to the ballpoint pen principle is thus ensured by applying the pump according to the invention, that the valve is always adjusted after withdrawal of the pump in its closed position back.

In one embodiment of the invention, the pin is in operative connection with the device via a mechanism designed according to the ballpoint pen principle

Valve body. Here are at the pin or an element operatively connected to this element alternately successive inclined ramps formed which cause an opening stroke or a closing stroke and the corresponding with

Wedge surfaces of a rotatably mounted feed sleeve cooperate to adjust them in the axial direction, thereby causing a rotation by an angular range, which corresponds approximately to the pitch of the ramps. At this feed sleeve stops are formed which limit the axial movement of the valve body, so that depending on the relative positioning of the ramps and the wedge surfaces of the valve body occupies either its open position or rests on the valve seat. The ballpoint pen principle is well described in the literature, so that more functional

Explanations with reference to these statements are dispensable.

According to the invention, the axial length of the ramp causing the opening stroke is made smaller than the axial length of the ramps causing the closing stroke, so that a larger stroke is accordingly required for the adjustment into the open position in order to bring the ramp into operative engagement with the corresponding wedge surface. The wedge surfaces are then executed with the same axial length. In kinematic reversal you could also form the wedge surfaces with different axial lengths and then form the axial length of the ramps in all segments the same. In particular, in kites, it is preferred if the valve device is used for their protection at least in sections in a bush-shaped housing part that is connected to the Bladder.

In such a variant, the valve has a on an outer skin of the

Sports device fixable adapter ring, which is connectable to a flange of the housing part, in which the valve insert is screwed from the outside into the housing part. 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, which receives 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 a

Damage is prevented.

This positive connection can be made by the fact that on

Adapter ring or on the flange of the housing part projections are formed, which dive in the assembled state 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 assembled state in a corresponding centering of the respective other component.

The effective length of the pin of the valve body is preferably designed such that when a pump comes into abutment with a pump-side actuating element to an adjustment of the valve body in an opening direction or However, this Verstellhub is not sufficient to bring the valve body in the permanent open position.

The valve body may comprise a valve disk, which is encompassed by the housing part, so that a flow cross-section through the outer circumference of the valve disk and the inner circumference of the housing part is limited. It can at a

Inner peripheral wall of the housing part support webs are formed, which extend in the radial direction toward the valve disk and between which then a respective portion of the opening cross-section is formed. By this Spitzstege a radial deflection of the valve disk, for example, in an uncontrolled crash of the kite and thus prevents damage to the valve.

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, where the tightness in

Bayonet is not guaranteed, however, takes place through the additional sealing surface 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.

A pump according to the invention for such a valve has, on the one hand, a coupling piece which can be brought into engagement with the sports equipment-side bayonet, on which a

is formed frontal seal whose position is chosen so that it can be brought into sealing contact with the sealing surface of the valve core. The coupling piece further has an actuating element, for example a diagonal bar for actuating the pin when attaching the coupling piece to the bayonet. This operation is again carried out with a stroke corresponding to the shorter closing stroke, so that a permanent adjustment to the open position is not possible. That is, the shorter stroke is chosen so that the valve body in his

Non-return function remains and is kept open only against the bias. Due to the larger opening stroke, the valve body is adjusted to a latched opening position.

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

1 shows a development of a conventional valve in one

Between assembly step;

Figure 2 shows the valve of Figure 1 in the assembled state;

FIG. 3 shows a valve according to the invention in the assembled state;

Figure 4 is an exploded view of the valve of Figure 3;

Figures 5, 6 representations of the valve of Figure 3 in disassembled state;

FIG. 7 shows a valve body of the valve according to FIGS. 3 to 6;

Figure 8 shows a housing part of the valve according to Figures 3 to 6 and

Figure 9 is a front view of a pump-side coupling piece.

With reference to FIGS. 1 and 2, a variant of a conventional valve of a kite will first be described. As explained, such a valve 1 has an insert 2, which is rotatably mounted in a valve core 4 and via which a valve body, not shown, in the following case, a valve disc 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 passes through an attached on the outer skin (Canopy) 8 adapter ring 6. At this adapter ring 6 is via a molded hinge strip 10 a

Closure cap 12 attached. In the preassembled state according to FIG. 1, the valve core 4 projects out of the adapter ring 6 with a threaded portion 14. On this threaded portion 14 of the fixing ring 16 shown on the right in Figure 1 can be screwed to center the valve core 4 with respect to the adapter ring 1. For this centering is on the adapter ring 6 a threaded portion 14 encompassing, in

Axial direction projecting centering ring 18 is formed. The fixing ring 16 has, as shown in Figure 1 on its adapter ring side large area a to the geometry of Fixing ring 18 adapted centering 20, according to Figure 2 at

Unscrewing the fixing ring 16 engages around the centering ring 18 in a form-fitting manner, so that an exact positional positioning of the valve insert 4 with respect to the adapter ring 6 takes place through the threaded engagement between the fixing ring 16 and the valve insert 4.

The applicant reserves the right to make its own claim to this development of conventional valves.

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

Figure 3 shows an inventive valve 1 in the assembled state, wherein from the canopy 8 an actuating part of the valve 1 projects outwardly.

The valve 1 according to Figure 4 in principle consists of four main modules.

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

For closing the valve 1, a closure cap 38 can be used according to FIG. This has a coupling piece 40, are formed on the bayonet gate 42, in the corresponding bayonet cam 80 (see Figure 3) of the bayonet 36 engage, so that the cap 38 by turning reliably with the

Valve insert 4 can be sealingly connected. To improve this seal can be formed on a cover 44 of the cap 38, a seal, the comes into contact with the sealing surface 34. In the illustrated embodiment, such a circumferential sealing surface is not provided, since the lid 44 is formed only like a knob.

The adapter ring 6 is sewn to the canopy 8 and engages around a corresponding opening in this canopy, so that the bladder is accessible. As explained, am

Adapter ring 6 of the circumferential centering ring 18 is formed. Furthermore, on

Centering ring 18 three approximately rectangular recesses 22a, 22b, 22c formed. These recesses 22 a, b, c are unevenly on a common

Dividing circle trained. In the concrete embodiment example, two recesses 22a, 22b are arranged relatively close to each other, while the third recess 22c is arranged diametrically thereto.

Bladderseitig the above-mentioned housing part 46 is provided, which passes through a recess of the Bladder with a housing sleeve 48 and immersed in the interior thereof. At the adapter ring side end portion of the housing sleeve 48, a flange 50 is provided on which three projections 52a, 52b, 52c are formed, the geometry and position corresponding to that of the recesses 22a, 22b, 22c is selected, so that when mounting the three projections 52a, 52b , 52c dive accurately into the corresponding recesses 22a, 22b, 22c. In this way, a relative rotation of adapter ring 6 and housing part 46 and thus the canopy and the Bladder reliably prevented, so that damage to the material during installation or improper handling are almost impossible.

On the inner peripheral wall of the housing sleeve 48, an internal thread 54 is provided, which meshes with an external thread 56 of the valve sleeve 28. Of 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 and venting of the kite 48 wave-shaped recesses or projections 57 are provided on the lower end face of the housing sleeve 48 in FIG. FIG. 5 shows a pre-assembly state with the adapter ring 6 sewn to the canopy 8, the valve core 4 and the housing part 46, which in the representation according to FIG. 5 has not yet been connected to the bladder. The three projections 52a, 52b, 52c visible in FIG. 4 are formed on the invisible side of the flange 50, which is located at the bottom in FIG. In this illustration, it is also easy to see the undulating projections 57, which optimize the flow cross section. According to Figure 5, the pin 30 connected to the valve body 24 is biased by a spring 58 in the direction of the closed position in which the valve body 24 rests sealingly on the seat 26. Recognizable in this representation is also the bayonet 36, in which the coupling piece of the pump is used.

In the illustration according to FIG. 6, the valve insert 4 is visible from the side.

Accordingly, the valve body 24 is lifted from the valve seat 26 on the valve sleeve 28 and thus locked in the open state. Well visible in this view, the opposite of the valve sleeve 28 in the radial direction widened sealing flange 32 with its adapter ring side centering recess 20, in which when mounting (Figure 3)

Dips in centering ring 18. That In this embodiment, so to speak, the fixing ring 16 according to Figures 1 and 2 in the valve core 2, more precisely in the sealing flange 32 is integrated.

Figure 7 shows the valve body construction in an individual view. As explained above, the valve core is known per se as a push-push system

executed, wherein upon actuation of the pins 30 in the arrow direction of the valve body 24 can be brought, for example in an open position. With a further actuation of the pin 30 in the arrow direction, the valve body 24 is then brought back into its closed position in which it performs a non-return function. That when pressure builds up from the outside then the valve body 24 can 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 24 then automatically snaps back into its closed position in the check function due to the force of the spring.

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 pin 30, a plurality of ramps, in the present case, four concrete ramps formed, of which only two are provided with the reference numerals 60, 62. These ramps each have an inclined surface 64 and 66, which can be brought into contact with corresponding wedge surfaces of a rotatably mounted feed sleeve, not shown, so that by moving the inclined surfaces 64, 66 to the corresponding wedge surfaces the feed bush in the axial direction (arrow in Figure 7) and one

Division step is twisted.

Valve body side, a correspondingly configured gate 68 is formed, which determines the relative position of the valve body 24 with respect to the valve seat 26 depending on the rotational position of the feed bushing. That in a rotational position of the feed bush, the valve body 24 rests on the valve seat 26 and can lift off the valve seat 26 only in the non-return function. In the next rotational position of the feed bush, the valve body 24 is then lifted off the valve seat 26 and remains in its open position.

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

An essential difference between the solution according to the invention and the conventional solutions, however, is that according to the invention the one

Ramps 60 causing movement toward the opening position have a smaller axial length than the adjacent ramps 62 responsible for regression. By these different Axiallängen is thus to fully open the

Valve body 24, a larger stroke required than he zürn back parts (closing) of the valve body 24 is required.

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

FIG. 8 shows an individual representation of the housing part 46 with its flange 50 and the housing sleeve 48, which dips into the interior of the bladder, whose mouth region, As stated above, is formed with the wave-shaped projections 56. In this area, ie in the region in which is arranged after mounting the valve body 24, a plurality of mutually spaced support ribs 70 are formed on the inner peripheral surface of the housing sleeve 48, which the valve body 24 in

encompass mounted state with comparatively small radial distance. Of the

Opening cross-section of the valve 1 is then limited accordingly by the outer circumference of the valve body 24 and the inner circumference of the housing sleeve 48, said annular gap over the plurality of support ribs 70 in a variety of

Sectional sections is divided, 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 via the support webs 70, damage to the valve 1 in the event of a fall and an associated radial overloading of the valve body 24 is 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 contact with different pump manufacturers is not guaranteed. 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 bayonet area but that on the pump-side coupling piece 74 in addition to the bayonet gate 42 (see Figure 4 and 9) nor an end-side sealing shoulder 76 is formed , which can be brought into sealing contact with the sealing surface 32 of the valve insert 4 when fitting the coupling piece 74, so that a reliable seal is ensured even if the bayonet coupling does not fit exactly. The sealing shoulder 76 may be provided with a seal, for example a sealing ring or the like. As a result, the valve is designed to be pump adapter designed for SUPs as well as for kites (Pump bayonet) and therefore practically any type of pump suitable for kites or SUPs can be used without adapter change.

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

When using a running with a valve according to the invention kites this is emptied by actively adjusting the pin 30 in this open position - while the valve remains open. In a later inflating the kite is then the

Coupling 74 of the pump recognized and the pin 30, which is biased by the spring 58 in a constant basic position, operated with the smaller stroke, so that the closing body 27 is brought into its non-return position. An accidental complete opening of the valve body 24 is not possible by applying the coupling piece 74 even if the valve before pumping already in his

Setback position is adjusted.

By appropriate design of the pump-side coupling piece 74 thus incorrect operation can be reliably prevented. Furthermore, an optimal seal is ensured by the double seal on the sealing shoulder 76 and the actual bayonet coupling.

Disclosed are a valve for an inflatable sports device, an inflatable sports device embodied with such a valve and a suitable pump, which are designed so that a stroke required for permanent opening of the valve is greater than a stroke for moving the valve into its closing / closing position. check position. LIST OF REFERENCES:

1 valve

2 use

4 valve insert

6 adapter hanger

8 Canopy

10 hinge strips

12 cap

14 threaded section

16 fixing ring

18 centering ring

20 centering recess

22 recess

24 valve body

26 valve seat

28 valve socket

30 pin

32 sealing flange

34 sealing surface

36 bayonet

38 cap

40 coupling piece

42 bayonet scenery

44 lid

46 housing part

48 housing sleeve

50 flange

52 advantage

54 internal thread

56 external thread

57 lead

58 spring ramp

ramp

Beveled surface Beveled backdrop

Support bar Ring seal Coupling piece Sealing shoulder

Claims

claims

1 . Valve for an inflatable sports device, having a valve insert (4) which is designed in the manner of a check valve and has a valve body (24) which is formed against a valve bush (28) of the valve insert (4) valve seat (26) in a closed position is biased and for filling or emptying in one

Opening position and then back into a closed position can be brought, in each one with the valve body (24) in operative connection pin (30) is actuated and wherein the valve insert (4) a bayonet (36) is designed for attachment of a pump, characterized characterized in that the opening stroke for effecting an adjustment of the valve body (24) in the direction of its open position is greater than the stroke for

Causing an adjustment of the closing body (24) in its closing or

Check position.

2. Valve according to claim 1, wherein the pin (30) via an after

Ballpoint pen principle formed mechanism in operative connection with the

Valve body (24), wherein the pin (30) alternately on an opening stroke and a closing stroke causing obliquely employed ramps (60, 62) are formed, wherein the axial length of the opening stroke causing ramps (62) is smaller than the axial length the closing stroke causing ramps (60).

3. Valve according to claim 1 or 2, wherein the valve core (4) is at least partially inserted into a bush-shaped housing part (46).

4. Valve according to one of the preceding claims, with a fixable on an outer skin of the sports equipment adapter ring (6) which is connectable to a flange (50) of the housing part (46) by screwing the valve core (4) with the housing part (40), wherein the adapter ring (6) and the flange (50) of the housing part (46) are positively connected with each other in the direction of rotation.

5. Valve according to claim 4, wherein on the adapter ring (6) or on the flange (50) projections (52) are formed, which in the assembled state in corresponding

Submerge recesses (22) of the flange (50) or the adapter ring (6).

6. Valve according to one of the preceding claims, wherein the adapter ring (6) and the housing part (46) are centered relative to each other by means of a centering device.

7. Valve according to claim 6, wherein on the adapter ring (6) or on the housing part (46) has a centering ring (18) is formed in the mounted state in a

Centering recess (20) engages on the housing part (46) or on the adapter ring (6).

8. Valve according to one of the preceding claims, wherein the pin (30) is designed so that it when attaching the pump in abutment with a pump-side

Actuator can be brought to initiate the adjustment in the closed / non-return position.

9. Valve according to one of the preceding claims, wherein the valve body (24) has a valve plate which is encompassed by the housing part (46), so that a

Flow cross-section through the outer periphery of the valve disk and the inner circumference of the housing part (46) is limited, wherein on an inner peripheral wall of the

Housing part (46) supporting webs (70) are formed, which extend in the radial direction towards the valve disk and between which in each case a portion of the

Flow cross-section is formed.

10. Valve according to one of the preceding claims, wherein the valve insert (4) in the axial direction, a sealing surface (34) for a pump-side coupling piece (40) is formed.

1 1. Inflatable sports equipment with at least one valve according to one of

previous claims.

12. pump, in particular for attachment to a valve according to one of

preceding claims, wherein the pump has a with a bayonet (36) of the valve (1) engageable coupling piece (74) on which a front-side

Seal is formed, in sealing engagement with a sealing surface (34) of a valve core (4) is engagable and / or with an actuating element for adjusting the valve body when fitting the coupling piece (74) to the bayonet (36), this resulting from the attachment stroke is less than that stroke, which is used to adjust the valve body (24) is required in its opening position.