DE202007011782U1 - Gabelbaumendbeschlag - Google Patents

Abstract

Gabelbaumendbeschlag for a boom with at least one rotatably mounted deflection roller (14), the front side over a Cover (28) is covered, characterized in that the cover (28) is arranged at such a distance from the deflection roller (14), in that a tensioning lamp (12) passes through a nip (42) between the cover (28) and the guide roller (14) therethrough in a Umschlingungsposition the deflection roller (14) can be brought.

Description

The The invention relates to a boom end fitting according to the preamble of claim 1 and one with such a boom end fitting executed Boom.

conventional For example, be known from WO 83/00313 A1 known booms used in windsurfing rigs and are usually telescopic executed with the boom over a Boom front piece is fixed to the mast and at a boom end fitting pulleys for Has tensioning of the lower or leech.

Especially in the case of race forks, this diversion is translated several times over a talje, with the clamps with slip clamps on both sides of the boom boom are held so that the driver can trim on both sides and the sail so easy on different wind and wave conditions can adjust.

at translated several times Taljen is awkward the rope in the arranged on the boom end fitting pulleys and into the eyelet at threading. This is especially difficult when the rig is on the beach Strong wind is built up.

Of the Invention is the task of creating a boom end fitting, in which the threading a hammock is facilitated.

These Task is by a boom end with the features of the claim 1 and by a so equipped Boom solved.

According to the invention carries the boom end fitting several pulleys for the rope. These pulleys are frontally outward from Covers of the boom end piece covered, so that the rope is not undesirable when going for a walk loosen the pulley can. The frontal cover according to the invention at least in the region of a deflection roller designed so that a nip between the pulley and the cover remains, through the through the rope to the sections encompassing the concerned Guide pulley performed can be. However, this nip is designed so that an accidental release is excluded. This allows the rope without threading very much quickly brought into contact with the pulley.

The Cover is free in the area of the nip-side pulley cut, so that only a peripheral region of the deflection roller is covered and the nip through the side cheek of the pulley on the one hand and the free-cut cover on the other hand is limited.

The Cover of the boom end fitting is preferably designed such that Covered by her several pulleys at least partially become.

at a preferred embodiment the pulley towards the nip with an enlarged side cheek executed so that the nip above a larger circumferential length than at a small pulley runs.

at Such a variant, it is preferred, this side cheek elastic form so that the rope by elastic deformation of the side cheek can be passed through the Qetschspalt.

at a particularly compact constructed boom fitting are at least four pulleys provided, of which two on a common Axis are arranged, with the two axes parallel to each other run.

Of the is provided with such a boom end fitting boom preferably provided with slip clamps on which end portions of Tampens or a two-way translation associated with this rope can be determined.

other advantageous developments of the invention are the subject of further Dependent claims.

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

1 a three-dimensional representation of a boom end fitting;

2 a view from below of the end fitting 1 and

3 the boom end fitting with set sail.

The invention is preferably used in so-called race forks, over which the leech and underbelly of a sail with respect to a mast used in a mast pocket of the sail can be stretched. Such Race forks are usually made of a boom attached to the mast front piece and a Gabelbaumendbeschlag, which is designed with a Talje for tensioning the sail. Between the boom end fitting and the boom front piece extend two curved boom spars provided with a neoprene cover or the like are and where a Trapeztampen is set.

1 shows a three-dimensional representation of a boom end fitting 1 for such a fork. This has a base body, which is made by injection molding of high-strength plastic material and in which the in 1 Dashed lines indicated end portions of boom posts 2 are used. The entire boom can be made in lightweight carbon fiber material, in which case the boom arms and the boom end fitting 1 as well as the boom front piece can be connected in one piece or by mating and gluing together.

The boom end fitting 1 has an approximately U-shaped structure with two legs 4 . 6 into which the boom arms 2 plunge. The two thighs 4 . 6 are over an arcuate tail 8th connected to each other, in which a translation for a chuck 12 is stored. The translation 10 consists essentially of four pulleys 14 . 16 . 18 . 20 of which two each 14 . 16 ; 18 . 20 on a common axis 22 respectively. 24 are stored. The two axes 22 . 24 run in parallel distance and are in a bridge 26 stored, which is the U-shaped base of the tail 8th in the transverse direction, that is in the direction of the two legs 4 . 6 overstretched. This jetty 26 lies approximately in that of the Gabelbaumholmen 2 spanned midplane of the boom or the boom end fitting 1 ,

According to the 1 and 2 the latter being a bottom view of the boom end fitting 1 shows are the pulleys 14 . 16 . 18 . 20 from the front of a top cover 28 (please refer 1 ) and a lower cover 30 (please refer 2 ) are covered. The latter lower cover 30 and the jetty 26 each have a center between the two axes 22 . 24 extending recess 32 that differ from that in the 1 and 2 leading edge inwards, to the apex of the tail 8th extends. This recess 32 allows the threading of the clamping ramp 12 ,

At the cover 28 ( 1 ) is a similar recess 34 provided, however, in contrast to the recess 32 the cover 28 and the jetty 26 in the illustration according to 1 to the right to the pulley 14 is extended. As in particular from the view according to 1 shows, has the pulley 14 at her the cover 28 facing end face in a radius opposite the other roll diameter extended, disc-shaped side cheek 36 , The recess 34 is designed in such a way that the in 1 in, to the vertex of the tail 8th facing peripheral region of the side cheek 36 is covered, with an outer contour 38 the recess 34 with the same or a slightly smaller radius than the side cheek 36 is executed.

The one with the contour 38 provided area of the cover 28 is over a step 40 in the axial direction to the adjacent end face of the side cheek 36 spaced so that between this and the cover 28 a nip 42 through which the rope is formed 12 can be pushed through. This pushing through is facilitated in the described embodiment in that the side cheek 36 is made of an elastic material, such as hard rubber or the like.

He is in 1 left to the step 40 subsequent coverage area 43 and the bottom cover 30 are with a very small gap or directly to the adjacent end faces of the pulleys 20 . 18 . 16 arranged so that through this column through the rope 12 can not be performed.

After correct threading of the clamping ramp 12 The sail can then simply be tensioned by a loop or bay of the tension ramp 12 through one on a clew 44 trained exchange 46 inserted through and through the nip on the sail roller 14 be placed so that a cumbersome threading when changing sails is no longer required. The basic threading of the sailing camp 12 takes place as shown in 1 so that is an end to the sailing tents 12 first through the lower roll 16 through, then from this in the footbridge 26 and the lower cover 30 limited space to the adjacent pulley 18 to be led. From this is the rope 12 then approximately helically through the recesses 32 . 34 . 35 through to the 1 left, on top, on the same axis 24 stored pulley 20 guided and then runs around the back to the left in 1 around towards the thigh 6 of the boom end fitting. The two are down the thighs 4 . 6 extending end portions of the clamping ramp 12 are each carried out with a pulley, to each of which a further one-sided boom boom 2 fixed rope attacks, which can be determined by a likewise fixed to the boom leg Belegklemme. The basic wrap is in the 1 and 2 clear to see.

To trim the sail is from the in 3 left upper pulley 20 pulled off a U-shaped loop or bay, and from the left in 3 through the exchange 46 threaded through and then along the in 3 visible top of the side cheek 36 the pulley 14 through the nip 42 pushed through, so this loop the pulley 14 surrounds and the sail now by pulling on one of the two end portions of the clamping ramp 12 can be stretched. An accidental release of the wrap of the pulley 14 is due to the comparatively narrow nip 42 locked out. When rigging the rope is after loosening the slip clamps with some force through the nip 42 through from the wrap of the pulley 14 dissolved out and then loosened loop through the exchange 46 pulled through, leaving the clew 44 free is.

The solution according to the invention allows for extremely fast rigging and unwinding, whereby the fitting on the fork end fitting 1 and provided on the boom supports translation only very small forces for trimming the sail are required, so that a trim even while driving is possible.

Disclosed is a boom end fitting in which at least one pulley for a tension lamp is covered frontally by means of a cover. This cover is at such a distance to an end face of the deflection roller arranged that a nip is formed, the through the tensioning lamps can be brought into a wrapping position.

1

Gabelbaumendbeschlag

2

Boom spar

4

leg

6

leg

8th

tail

10

translation

12

Spanntampen

14

idler pulley

16

idler pulley

18

idler pulley

20

idler pulley

22

axis

24

axis

26

web

28

cover

30

cover

32

recess

34

recess

35

recess

36

side cheek

38

contour

40

step

42

nip

43

coverage

44

clew

46

Kausch

Claims (8)

Gabelbaumendbeschlag for a boom with at least one rotatably mounted pulley ( 14 ), the front side of a cover ( 28 ), characterized in that the cover ( 28 ) at such a distance to the deflection roller ( 14 ) is arranged that a tensioning lamps ( 12 ) through a nip ( 42 ) between the cover ( 28 ) and the pulley ( 14 ) through in a wrap around the pulley ( 14 ) can be brought. A boom end fitting according to claim 1, wherein the cover ( 28 ) in the region of the deflection roller ( 14 ) is cut free, so that only a peripheral region of the deflection roller ( 14 ) is covered. A boom end fitting according to any one of the preceding claims, wherein the cover ( 28 ) several pulleys ( 14 . 20 ) covered in sections. Fork end fitting according to one of the preceding claims, wherein the deflection roller ( 14 ) to the nip ( 42 ) with an enlarged side cheek ( 36 ) is trained. A boom fitting according to claim 4, wherein the side cheek ( 36 ) is made of an elastically deformable material. Fork end fitting according to one of the preceding claims, with four deflection rollers ( 14 . 16 . 18 . 20 ), of which two each on one axis ( 22 . 24 ), wherein one of the deflection rollers ( 14 ) the nip ( 42 ) assigned. Boom with a boom fitting after one of the preceding claims. A boom according to claim 7, wherein end portions of a clamping ramp 12 on slip clamps on both boom posts ( 2 ) are assignable.