EP3597522A1 - Trapezoidal belt - Google Patents

Abstract

A trapezoidal belt is disclosed in which the adjustment is made by means of a ratchet arrangement.

Description

The invention relates to a harness for kitesurfing, windsurfing or sailing according to the preamble of patent claim 1.

Such trapezoidal straps can be designed as a waist harness or as a seat harness and usually have a trapezoidal hook that is attached to a front bar or a front plate. A hip belt is lashed to this front panel with a padded back part, which is provided with pads or the like in the area of the lumbar spine. Since, for example, when kitesurfing, the forces introduced via the kite act relatively strongly in the vertical direction, it is particularly important with waist harnesses that they fit well. Accordingly, the trapeze must be applied relatively tightly to the body to prevent slipping. In order to simplify this application, trapezoids usually have a trapezoidal fastener, in which a carabiner-like element is hung in an eyelet, whereby adjustment to the waist circumference is made possible by adjustable straps between the plate or the front bar and the back part.

The problem here is that the carabiner has to be attached to the eyelet with a relatively large amount of force in order to ensure that the trapeze fits exactly on the hip. In particular, loosening this closure is also problematic, since a pretension must be applied accordingly in order to release the karabiner in order to be able to detach the karabiner.

In the DE 20 2004 006 143 U1 A solution is explained in which the snap hook is secured to the eyelet via a spring clip and can be brought from its locking position into a release position by means of a handle. Specifically, this handle can be designed as a pull tab, via which the surfer can exert a comparatively large force to release.

However, it is also problematic with this variant that it is still difficult to hook the karabiner into the eyelet, since the hand has to be closed between the karabiner and the body in order to be able to apply the required tensile force.

Many surfers therefore loosen the straps to put them on, then hang in the trapeze fastener and then tighten the straps again - this procedure is very cumbersome.

In the EP 2 834 309 A2 To overcome this disadvantage, the applicant will be described a trapezoidal belt in which a closing piece of a trapezoidal lock which can be connected to an annular or eyelet-shaped retaining element is designed as a pivoting lever which is pivotably mounted about a pivoting axis. This pivot lever has a hook on a first end section and spaced apart from it a locking hook, the pivot axis being formed at a distance from the hook. When putting on the trapezoidal belt, the retaining element is first hooked into the hook, whereby this hooking-in process is very easy because the harness is loose. By pivoting the pivoting lever into its closed position, the locking hook engages with the retaining element, whereby the pivoting action shortens the effective length of the trapezoidal fastener and thus the circumference of the trapezoidal belt, so that the trapezoidal belt sits tightly in the desired manner.

Practice has shown that such a harness is extremely comfortable to wear. A disadvantage of all the solutions described, however, is that the adaptation of the trapezoidal belt to the hip size of the respective user, which depends, among other things, on the physique and the clothing worn, is very cumbersome, since the trapezoidal closure described above is usually on both sides with two straps with the actual one Hip or seat trapezium - hereinafter referred to as the trapezoidal belt - is connected and the length of these straps is adjusted by means of belt tensioners, which are very cumbersome to use and are also often accommodated in a pocket of the trapezoidal belt and are therefore very difficult to access and operate.

In the US 6,293,215 B1 discloses a front panel with a trapezoidal hook, with latched locking elements attached to the end portions of the hook panel, which interact with toothed straps, the end portion of which is removed from the hook panel and is fastened to the waist belt. The gearing engagement can be released by actuating a release on the hook plate side.

The disadvantage of this solution is that it is relatively cumbersome to put on since the straps have to be inserted into the locking mechanism each time.

In contrast, the invention has for its object to provide a harness with improved handling.

This object is achieved by a trapezoidal belt with the features of claim 1.

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

The trapezoidal belt according to the invention, which can be designed, for example, as a waist or seat trapezoid, has traction means, which are each connected in length-adjustable manner to a trapezoidal closure via an adjusting device. In a manner known per se, this trapezoidal closure has a closing piece which can be brought into clamping engagement with a retaining element. According to the invention, the adjustment devices and the traction means are designed in the manner of a ratchet arrangement. This is a significant difference from the prior art described at the beginning according to the US 6,293,215 B1 , in which there is in principle no trapezoidal fastener and the strap or straps are simply inserted into the locking mechanism. In the solution according to the invention, the attachment is carried out in a simple manner by means of the trapezoidal closure, the adaptation to the respective hip circumference being carried out via the ratchet arrangement.

Another advantage of this solution compared to the above-mentioned prior art is that the hook plate is very great in the solution according to the invention can be easily constructed, while in the known solution locking mechanisms have to be attached to the hook plate on both sides, so that it has a complex structure and also has a large number of projecting components which increase the risk of accidental release.

Such ratchet arrangements make it possible to set the effective length of the traction means very quickly and to adjust each traction means individually to the desired effective length. Because of this very simple adjustment option, a relatively complex mechanism, as described in the EP 2 835 309 A2 is to be dispensed with, since the loosening and tensioning takes place solely via the adjusting device.

It may be sufficient if the adjustment devices are only formed on the striker side, so that this can be brought into a hanging position and a closed position (with pretension) by adjusting the ratchet arrangements.

In a particularly preferred embodiment, the traction means are designed as toothed belts, which are guided along a guide plate on the trapezoidal belt and on which a ratchet lever is pivotally mounted, by means of the pivoting of which the toothed belt can be adjusted with respect to the guide plate. Such timing belts are designed with a certain bending stiffness, which enables an optimal introduction of the tensile force into the trapezoidal belt. This is a significant advantage over the conventional belt straps, which are designed to be flexible and have no inherent rigidity, so that the tensile force applied does not - as in the solution according to the invention - have a defined direction but rather depends on the support of the hip belt on the body and thus does not define a defined one Bracing position enabled.

In a preferred solution, the ratchet arrangement is designed with a locking element which allows the toothed belt to move in the direction of increasing the tension and releasably locks in the opposite direction, ie in the direction of the relief. This locking element is then released to relieve the load.

Putting on the trapezoidal belt is particularly convenient if two ratchet arrangements with two approximately parallel or approximately V-shaped toothed belts are associated with the striker and the retaining element, which engage the striker or the retaining element.

The introduction of the tensile force is further optimized if the striker has at least two approximately parallel hook-shaped claws which can be hooked into correspondingly designed holding elements of the striker.

The applicant reserves the right to direct its own independent claim to a striker with two such claws or similar fastening means.

By using a striker with two spaced claws, rotation of the striker with respect to a hook plate or the like holding a trapezoidal hook is reliably prevented, so that the introduction of force is further optimized. This hook plate accordingly forms the retaining element. Pockets can be formed in this retaining element, into which the hook-shaped claws are immersed and can be brought into clamping engagement with retaining bolts or the like, so that the claws do not protrude outwards.

In the case of a high-quality solution, these claws are made of metal or a fiber-reinforced plastic.

According to the invention, it is preferred if the claws extend approximately in the extension of the traction means, in particular the toothed belt.

In the event that it is desired by users, the closing piece or the retaining element can in turn be designed with a lever mechanism which enables tensioning and relaxing without actuating the ratchet arrangement.

• Figur 1 eine schematisierte Draufsicht auf einen erfindungsgemäßen Trapezgurt;
• Figur 2 eine Detailansicht eines schließstückseitigen Bereichs des Trapezgurts aus Figur 1;
• Figur 3 eine entsprechende Detaildarstellung eines gegenüberliegenden Bereich des Trapezgurts;
• Figur 4 eine Darstellung mit einem vom Trapezgurt gelösten Schließstück und
• Figur 5 das Schließstück gemäß Figur 4 in einer mit dem Rückhalteelement verbundenen Position.

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

• Figure 1 a schematic plan view of a harness according to the invention;
• Figure 2 a detailed view of a striker-side area of the harness Figure 1 ;
• Figure 3 a corresponding detailed representation of an opposite area of the harness;
• Figure 4 a representation with a striker released from the trapezoidal belt and
• Figure 5 the striker according to Figure 4 in a position connected to the retaining element.

The trapeze described below can be designed as a waist harness or seat harness and is suitable for kitesurfing, windsurfing or sailing. In the following versions, a waist harness - called a harness - is described. This harness 1 has according to the in Figure 1 Top view shown a waist belt 2 with a back part 4, which has, for example, a stiffener to distribute the forces on the back area. The back part 4 is adapted to the anatomy of the back. The back part 4 merges into two side parts 6, 8, which are designed to be substantially more elastic than the back part 4 and laterally enclose the user's torso. In extension of the side parts 6, 8, belly-side front flaps 10, 12 can be provided, which are connected by means of a Velcro fastener when the trapezoidal belt is put on. On the two side parts 6, 8, a front or hook plate 14 is fastened, which extends over the two front flaps 10, 12 and on which a trapezoidal hook 16 is fastened. In the illustrated embodiment, the hook plate 14 is formed as a molded piece made of plastic, which lies flat against the belly.

The hook plate 14 is connected to the side part 6 on the one hand via traction means 20 and an adjusting device 22. The in Figure 1 left end section of the Hook plate 14 is connected to one or more traction means 26 and a further adjusting device 28 via a trapezoidal closure 24. The distance between the hook plate 14 and the side parts 6, 8 can be changed via the two adjusting devices 22, 28 by correspondingly lengthening or shortening the traction means 20, 26, in order to enable adaptation to the waist circumference of the user.

As will be explained in more detail below, the traction means 20, 26 and the adjusting devices 22, 28 are designed as ratchet arrangements 30, 32, which enable very quick and exact adjustment.

Figure 2 shows a partial representation of the trapezoidal belt 1 with the side part 8, which can be connected to the hook plate 14 via the traction means 26 and the adjusting device 28 and the trapezoidal closure 24.

Accordingly, the trapezoidal closure 24 has a closing piece 34 which can be inserted into a retaining element 40 with two claws 36, 38 running approximately in parallel spacing and which is integrated in the hook plate 14. At the in Figure 2 In addition to the indicated trapezoidal hook 16, the exemplary embodiment shown is provided with a trapezoidal cord 42, which can be used as an alternative to the trapezoidal hook 16, for example to give the chicken loop more lateral play.

In the specific exemplary embodiment, the two claws 36, 38 - as will be explained in more detail below - engage in two recesses 44, 46 of the retaining element 40 of the hook plate 14, in each of which a retaining bolt (see Figure 4 ) is mounted, which is encompassed by the respective claw 36 or 38. The two claws 36, 38 are fastened to a base part 48 which plunges approximately flush into a stepped receptacle 50 of the hook plate 14. The pockets 44, 46 each open into this receptacle 50, so that neither the claws 36, 38 nor the base part 48 project forward (away from the user). Two toothed belts 52, 54 designed as traction means are fastened to the base part 48. These are made of a comparatively rigid, high-strength plastic material and have a large number of teeth 56, which are each designed with a steep and a flatter tooth flank. The toothed belts 52, 54 can be pivoted and / or adjusted on the locking piece 34 stored so that they can adapt to the respective clamping state in the V relative position shown. The toothed belts 52, 54 together with ratchet levers 58, 60 each form a ratchet arrangement 30, 31. Each of the ratchet levers 58, 60 is pivotally connected to a guide plate 62, 64 fastened to the side part 8. On the swivel joint end sections of the ratchet levers 58, 60 a toothing 66, 68 is formed, which also has a plurality of teeth with a steep and a flatter tooth flank. When the ratchet lever 58, 60 is pivoted about the respective pivot axis 70, 72, the respective toothed belt 52, 54 is transported through the toothing engagement in the area of the steep tooth flanks in the direction of the clamping engagement, so that the distance between the respective ratchet lever 58, 60 and the striker accordingly 34 is shortened. For lengthening, an unlocking lever 74, 76 can be actuated in order to release the toothing engagement, so that the effective length of the respective toothed belt 52, 54 is extended again. As in Figure 2 shown, the two toothed belts 52, 54 extend approximately in the extension of the two claws 36, 38, so that a very homogeneous force curve is ensured without transverse forces resulting in a twist.

The two ratchet levers 58, 60 are bent somewhat upward in the region of their end sections in order to ensure easy gripping. An inadvertent adjustment in the opening direction is only possible when unlocking levers 74, 76 are actuated, so that an inadvertent loosening of the belt tension is excluded.

Figure 3 shows a partial representation of the area of the other side part 6, which has a corresponding structure.

A ratchet arrangement 32, 33 is also provided on this side in order to adjust the width of the trapezoidal belt 1.

In this case, two toothed belts 78, 80 are in turn attached to the end section of the hook plate 14 that is removed from the trapezoidal closure 18. These can also be pivoted again in the plane of the drawing by means of connecting screws 82, 84 or other connecting means, such as rivets or the like, on the in Figure 3 visible End portion of the trapezoidal plate 14 hinged. The effective length of the toothed belt can then in turn be adjusted via ratchet levers 84, 86 which, like the ratchet arrangements 30, 31 according to Figure 2 are in meshing engagement with the toothing of the toothed belts 78, 80. The gearing is the same as on the basis Figure 2 described, so that further explanations are unnecessary. Both ratchet levers 84, 86 are each pivotally mounted in a guide plate 88, 90 fastened to the side part 6 about a pivot bearing 92, 94. The release is again carried out by actuating an unlocking lever 96, 98.

In the exemplary embodiment described, a ratchet arrangement 32, 33 of somewhat different construction, but functionally identical, is used in the region of the side part 6 as on the side part 8.

The distance between the two toothed belts 78, 80 corresponds approximately to that of the toothed belts 52, 54.

Figure 4 shows that in Figure 2 Side part 8 shown with loosened toothed belt 52, 54 and open trapezoidal closure 24.

The toothing engagement of the two toothed belts 52, 54 with the ratchet levers 58, 60 is released by actuating the unlocking levers 74, 76, so that the toothed belts 52, 54 can be pulled out of the guide plate 62, 64. According to the representation Figure 4 one can see quite clearly the base part 58, on the one hand the two toothed belts 52, 54 are fastened pivotably and / or adjustably. On the other hand, the two hook-shaped claws 36, 38 are arranged, which protrude toward the hook plate 14. The receptacle 50 is formed on the associated end section of the hook plate 14, the dimensions of which approximately correspond to those of the base part 48, so that it can be inserted into the step-shaped receptacle 50 with a precise fit. The two pockets 44, 46 open into this receptacle 50. In each of the pockets 44, 46 there is a holding bolt 100, 102 which, when the trapezoidal closure 24 is closed, is gripped by the hook-shaped end sections 104, 106 of the claws 36, 38, the claws 36, 38 fit exactly in the pockets Immerse 44, 46 so that twisting or tipping is not possible and the tensile force extends exactly in the extension of the hook plate 14.

This is vividly illustrated in Figure 5 shown. It can be seen that the two claws 36, 38 are completely immersed in the respective pocket 44, 46 and the base part 48 is received in the receptacle 50 and runs flush with the adjacent large surface of the hook plate 14. The two toothed belts 52, 54 are inserted with their end sections fastened to the connecting screws 82, 83 into a corresponding recess 108 in the base part 48, so that here too there is no or only an insignificant projection.

To completely close the trapezoidal belt 1, the two toothed belts 52, 54 are inserted into the respective guide plates 62, 64 (the latter not visible in FIG Figure 5 ) and the tension is then built up by actuating the ratchet levers 58, 60. The relatively narrow tooth spacing ensures that the desired belt tension is set very precisely.

In the embodiment according to the invention - as explained at the beginning - no pivot lever mechanism is required to open and close the trapezoidal closure 24. Through the individual adjustment of the effective length of the four toothed belts 52, 54, 78, 80, an exact adaptation to the respective anatomy is possible, the power transmission through the two spaced-apart claws 36, 38 and the toothed belts 52 formed as an extension thereof. 54 and the other toothed belts 78, 80 is optimal, so that an exact fit of the harness 1 is ensured even during difficult maneuvers. In connection with an anatomically shaped, preferably relatively stiff back part 4, a perfect fit is thus created, which can be easily adapted to different body contours.

A trapezoidal belt is disclosed in which the adjustment is made by means of a ratchet arrangement.

LIST OF REFERENCE NUMBERS

1

Trapezgurt

2

hip belt

4

back

6

side panel

8th

side panel

10

front flap

12

front flap

14

hook plate

16

harness hook

20

traction means

22

adjustment

24

trapezoidal closure

26

traction means

28

adjustment

30

ratchet assembly

31

ratchet assembly

32

ratchet assembly

33

ratchet assembly

34

striker

36

claw

38

claw

40

Retaining element

42

harness

44

bag

46

bag

48

base

50

admission

52

toothed belt

54

toothed belt

56

tooth

58

ratchet lever

60

ratchet lever

62

guide plate

64

guide plate

66

gearing

68

gearing

70

pivot bearing

72

pivot bearing

74

release lever

76

release lever

78

toothed belt

80

toothed belt

82

connecting screw

83

connecting screw

84

ratchet lever

86

ratchet lever

88

guide plate

90

guide plate

92

pivot bearing

94

pivot bearing

96

release lever

98

release lever

100

retaining bolt

102

retaining bolt

104

hook-shaped end sections

106

hook-shaped end sections

108

recess

Claims (9)

Trapezoidal harness for kitesurfing, windsurfing or sailing, with traction means (20), each of which is connected to a trapezoidal lock (24) or a hook plate (14) with adjustable length via an adjusting device (22), the trapezoidal lock (25) having a locking piece (34) , which can be brought into clamping engagement with a retaining element (40), characterized in that the adjusting device (22) and the traction means (20) are designed in the manner of a ratchet arrangement (30, 31, 32, 33). Trapezoidal belt according to claim 1, wherein the traction means (20) are designed as toothed belts (52, 54, 78, 80) which are each guided along a guide plate (62, 64, 88, 90) on the trapezoidal belt side, on which a ratchet lever (58, 60, 84, 86) is pivotally mounted, by the pivoting of which the toothed belt (54, 56, 78, 80) can be adjusted with reference to the guide plate (62, 64, 88, 90). Trapezoidal belt according to claim 2, wherein an unlocking element, for example an unlocking lever (74, 76, 96, 98), is mounted on the guide plate (62, 64, 88, 90) and prevents movement of the toothed belt (54, 56, 78, 80) in the direction of increasing the voltage and in the opposite direction, d. H. releases in the direction of relief when actuated. Trapezoidal belt according to claim 2 or 3, wherein the striker (34) and the retaining element (40) each have two ratchet assemblies (30, 31; 32, 33) with approximately parallel toothed belts (54, 56, 78, 80) which are assigned on Attack the striker (34) or the retaining element (40) directly or indirectly. Trapezoidal belt according to one of the preceding claims, wherein the closing piece (34) has at least two approximately parallel claws (36, 38) which can be suspended in corresponding holding elements of the retaining element (40). Trapezoidal belt according to claim 5, wherein the retaining elements are sunk into pockets (44, 46) of the retaining element (40), so that the claws (36, 38) immerse at least in sections. Trapezoidal belt according to claim 5 or 6, wherein the holding elements are holding bolts (100, 102). Trapezoidal belt according to one of the preceding claims, wherein the two claws (36, 38) consist of metal or a fiber-reinforced plastic and are fastened to a base part (48) on which toothed belts (54, 56) also engage. Trapezoidal belt according to claim 7, wherein the claws (36, 38) extend approximately in the extension of the toothed belt (52, 54).

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