DE8610401U1 - Sword for a sailing board - Google Patents

Abstract

1. Centreboard for a surfboard which is mounted for a swinging movement about an axis (12) within a centreboard case (8) between a substantially vertical position and a clapped-in position in the centreboard case (8) and which is adjustable from the deck side by a foot operating device, which consists of a slide (3) guided in rails (4, 5) displaceable in parallel relationship to the longitudinal centre axis of the surfboard (1) and connected with the centreboard (11) by a crank (13), one end (14) of which being mounted for a swinging movement about a first pivot axis (15) at the slide (3) and the other end (16) of which pivotably mounted about a second pivot axis (17) at the centreboard (11) spaced from the axis (12) of the centreboard (11), characterized in that in the completely clapped-in position of the centreboard (11), which corresponds to the foremost position of the slide (3), the second pivot axis (17) of the crank (13) is positioned in a plane (18) forming right angles with the rails (4, 5), while the first pivot axis (15) having just exceeded the dead centre position of the crank (13) in this rectangular plane (18).

Description

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Hanö Fichtner,

Weilheimer Strasse 22, D - 8124 Seeshaupt

Sword for a sailing board. |

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The innovation concerns a sword for a sailing board, which in a sword case between one essentially vertically downwardly extending and a completely recessed position in the sword case pivotable is mounted and which is adjustable from the top by means of a foot actuation device.

Such swords, which are generally known as folding swords 1

1 , are known in a wide variety of embodiments (cf., for example, DE-PS 26 59 297 and DE-OS 30 27 524). Compared to embodiments in which the sword rigid, ie not pivotable is mounted, these provide the particular advantage that such swords according to the desired optimum lateral \ plan changes on the different courses during the trip easily with the foot in any desired pivotal position have it brought.

In the known embodiment there is the foot actuation device in particular from humps or the like on the sword head, which with the foot in the different positions can be brought with appropriate pivoting of the sword. However, such bumps are disadvantageous and dangerous, because they overhang the deck area of the sailboard during the maneuver and at the same time represent a considerable risk of injury in the event of a fall.

From DE-OS 34 09 157 there is also a construction known, in which the pivot axis of the sword is suspended from rubber bands and inserted into the sailboard from below is, so that hereby a kind of slide can be used, which in different notches in the upper edge of the Sword case can be locked in place. In another embodiment of this document, a telescopic rod is with Spring or the like interposed, which pushes the slide up against latching on the underside of the

IQ SchVi'srtkastsns pretensioned. Both constructions show the advantage that the actual control element on the deck surface of the sailboard does not change its height, however, the construction is comparatively prone to failure and cannot be manufactured cheaply. Added to that is that due to the necessary elasticity of the overall construction, be it through rubber bands or the compression spring in the Telescopic rod, especially with short strikes, as can occur in waves, unintentionally changes the position of the Sword can adjust.

The innovation is based on the task of a simplified construction of a sword of the type mentioned create, which at the same time ensures that the set position of the sword is maintained. 25th

According to the invention, this object is essentially achieved in that the foot actuation device consists of a slide consists, which is rail-guided parallel to the longitudinal feed axis of the sail board is displaceable that the slide is connected to the sword via a thrust lever one end of which is attached to the carriage so that it can pivot about a first pivot axis and the other end of which is attached to the slide a second pivot axis is pivotally attached to the sword, and that the second pivot axis at a distance from the axis of the sword is arranged.

As a result of the innovation, apart from the complete solution of the task, in particular the advantage er _{becomes r}

ι aims that a very low overall height on the Deck surface of the sailing board is required, with ease of use being achieved at the same time.

A particularly preferred embodiment can be created * that the pivot axes of the thrust lever are arranged such that in the fully folded position of the sword, which is the foremost position of the Slide corresponds to the dead center of the lever has been exceeded. This ensures a secure locking of the Sword achieved in this position without additional effort.

A foot loop is preferably provided on the top of the slide. This has the advantage that this Foot loop on the one hand can be used in the usual way and on the other hand the adjustment of the sword additionally facilitated.

-20 In a preferred embodiment according to the innovation are the rails by two with the open sides facing each other U-profile pieces formed * which are parallel are arranged to the upper edges of the sword case.

In particular, it is preferred here that the carriage is stored tied slidably by means of rollers or sliders within the U-profile pieces.

In a particularly preferred embodiment according to the innovation, there is also a locking device for Intermediate positions of the slide are provided.

This locking device preferably consists of one or the U-profile pieces at intervals in the upper free leg Locking openings and one or more locking pins attached to the slide, the locking pins by pressing down the slide against springs sliding on the lower free legs of the U-profile pieces

are cash. This construction is also used in intermediate steps a secure locking of the selected sword position ensures, because due to the foot actuation the Springs can be sufficiently dimensioned to ensure that the locking pins are securely held in the locking openings! ice.

This embodiment can preferably be further developed as a result be that rollers are mounted on the springs, welehe run in the U-profile pieces. This will make the Improved ease of movement of the construction.

In a modified embodiment according to the innovation, the locking device consists of sawtooth-like ones Grid elevations on the lower free legs of the U-profile pieces and from locking edges on the carriage, the locking edges can be released by lifting or tilting the slide.

2Q In particular, it is possible in this case, the front end of the carriage on rollers in the U-profile pieces so that the rear edge of the slide forms the locking edges to be stored. ₅

In particular, it will be advantageous in this context, the lower legs of the U-profile pieces at the free edges to be provided with a bar which is bent upwards and which has the grid elevations. This will make the Do not run the roll through the front end of the carriage

_o "obstructed the grid elevations.

In a particularly preferred embodiment according to the innovation, the locking device is for a movement of the sledge and front: · Designed to be inaccessible. η This offers the advantage that, despite the safe locking of the sword, damage can be caused when it encounters an obstacle the sword itself can be ruled out by moving the slide afterwards

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can move from front to back.

In a particularly advantageous development according to the innovation it is provided that, as _s are provided at two lower longitudinal edges of the sword box sealing lips known per se and that a recess is formed behind the sealing lips, which accommodates an insert for Verschiiessen of the daggerboard case. This embodiment is particularly advantageous because in many cases it is desirable to close the sword when the sword is not used in the gliding phase or when driving at speed because of the spray water escaping from the top. The innovation makes it possible to do this without removing the sword by simply inserting the insert into the recess. The insert is then held securely by the elasticity of the sealing lips. This feature according to the innovation also represents an improvement in safety, since if the wind slackens, the insert can simply be removed even on the water and the sword can be used in the usual way.

The recess is preferably dimensioned such that the insert can be formed by a batten. this represents the most cost-effective solution.

In the following, the innovation is explained in more detail with reference to embodiments illustrated by way of example in the drawings. Show it:
30th

1 shows a detail of a sailboard with the sword according to the innovation in plan view;

Fig. 2 is a sectional view of the sword in two different positions ⁴ ,

Fig. 3 is a side view of an embodiment of the carriage in an enlarged view;

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Fig. 4 is a sectional view taken along the line IV-IV of Fig. 3;

FIG. 5 is a partially broken away plan view of the slide according to FIG. 4, with the foot loop has been omitted;

6 shows a detailed view of a modified detail of the slide according to FIG. 3;

7 shows a schematic sectional view of an embodiment of the locking device;

8 shows a view corresponding to FIG. 7 of a modified embodiment;

9 shows a schematic sectional view of a further modification of the locking device;

Fig. 10 is a sectional view taken along the line X-X of Fig. 9; and

Fig.11 details of the sword case in a lateral Sectional view and in the view from below.

1 shows a schematic top view of a section of a sailboard 1 with that generally designated by 2 Sword mechanism according to the innovation. As shown, the sword device has a slide 3,

gO which in rails 4, 5 which are parallel to the top edges 6, 7 of the sword case 8 run.

On the deck surface of the sailboard 1, foot straps 9 are provided in the usual arrangement, with an additional one Foot loop 10 is attached to the top of the carriage 3.

7th

Fig. 2 shows a sectional view in the central plane of the sword case 8 according to FIG. 1, the same reference numerals being used for the same parts.

In Fig. 2, the sword 11 of the sword mechanism 2 is illustrated in two different positions, the fully collapsed position in solid lines and the substantially vertical position in dashed lines Lines is shown. Basically the same applies to the carriage 3, as far as the clarity of the illustration is concerned permitted.

The sword 11 is mounted pivotably about an axis 12 in the front lower area of the sword case 8.

15th

As shown, the sword 11 is connected to the slide 3 via a push lever 13. A first end 14 is around a pivot axis mounted in the slide 3 can be pivoted, while the other end 16 of the thrust lever 13 is pivotable about a second The pivot axis 17 is pivotably connected to the sword 11. In order to achieve a favorable power transmission, the second pivot axis 17 lies at the greatest possible distance from the axis 12 of the sword 11.

As can be seen from the illustration according to FIG. 2, the pivot axes 15 and 17 are arranged with respect to the carriage 3 and the sword 11 in such a way that in the fully unfolded position of the sword 11 illustrated by the dashed lines, which is the foremost position of the carriage 3 corresponds, the dead center of the thrust lever 13 has been exceeded. The dead center of the thrust lever 13 is illustrated by the dashed line 18 over which the upper pivot axis 15 passes.

35

As can be seen from the view of FIGS. 3 and 4, * are at the preferred embodiment, the rails 4 running parallel to the upper edges 6, 7 of the sword case 8,

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designed as U-profile pieces 19, 20, the open sides of which facing each other are preferably embedded in the sword case. The carriage 3 is by means of rollers or slides stikken 21 within the U-profile pieces 19, 20 tied and slidably mounted.

In FIGS. 3 and 4, there is also a first embodiment a locking device, generally designated 22, by means of which it is possible to lock the slide 3 in a number of conflicts between the to lock the two end positions illustrated in FIG.

In the illustrated embodiment, the further details of which can also be seen in FIG. 5, the locking device consists of locking openings 24 provided at intervals in the upper free leg 23 of the U-profile pieces 19, 20, into which one or more locking pins 25 attached to the slide 3 engage can. In the exemplary embodiment illustrated in FIGS. 3 to 5, the locking pins 25 can be moved out of the locking openings 24 by pressing down the slide 3. For this purpose, the carriage 3 with four leaf springs 26 is provided, which slide on the lower free legs 27 of the U-profile pieces 19, ZO and which it against the upper free \ leg 23 of the U-profile pieces in the normal position of the carriage 3 19 Press 20 so that the ■ locking pins 25 are pressed securely into the locking openings 24 j

will. The springs 26 are sufficiently dimensioned here ned to ensure a secure engagement under all conditions

g ₀ , since with the aid of the foot strap 10 the slide 3 can be unlocked by means of the entire body weight i of a user *

As indicated schematically in Fig. 6, may at a g ₅ modified embodiment, the springs 26 additional rollers 28 od. Like. Be provided which, instead of the sliding engagement of the springs 26 on the free lower legs 27 of the U-profile pieces 19, 20 roll off to

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this improves the ease of movement of the slide 3.

As in the case of the embodiment of a locking device 22 according to FIG. 9, which is described further below and 10 it is preferred in all embodiments that the locking device 22 during a forward movement of the carriage 3 can be overrun, since this forward movement of the carriage 3 of the pivoting movement .0 of the sword 11 corresponds. This feature is particularly preferred in order to prevent the sword from running up is damaged on obstacles, but can avoid this by »overflowing the locking device. I.

In FIGS. 7 and 8, two exemplary embodiments are shown schematically games of the locking pin 25 illustrated, which allow such an overrun of the locking device 22.

In the embodiment according to FIG. 7, each has a locking pin 25 has a downwardly inclined cam surface 29 which is designed in such a way that the locking pin 25 in the event of a violent forward movement of the slide 3 against the springs 26 downwards out of the latching opening 24 is pushed out.

In the embodiment according to FIG. 8, the cam surface 29 is provided on the upper side of a spring tongue 30, which in this case forms the locking pin 25.

In the embodiment according to FIGS. 9 and 10, the locking device 22 formed in that the rear edge 31 of the carriage 3 itself is part of the locking device 22 forms.

For this purpose, the front end 32 of the carriage 3 is mounted on rollers 33, which on the lower free Leg 27 of the U-profile pieces 19, 20 run. In the in

Fig. 9 illustrated locked position of the slide 3, this therefore takes a slightly to the rear inclined inclined position, so that the rear edge 31 forming a locking edge in sawtooth-like raster elevations can intervene, which are formed on the lower free legs 27 of the U-profile pieces 19, 20.

As the detail according to FIG. 10 shows, it is preferred here that the lower free leg 27 of each U-profile section 19, 20 is provided on the free edge 35 with an upwardly bent bar 36, which the grid elevations 34 has. This ensures that the ratchet elevations 34 do not allow the rollers 33 to run freely prevent.

In this embodiment, the slide 3 is thus unlocked simply by slightly lifting or tilting around the roller 33 via the foot strap 10, so that the rear edge 31 is released from the raster elevations ³ ^. In order to prevent this movement from taking place automatically during operation, a compression spring can also be provided (not shown), which biases the rear edge 31 of the carriage 3 downward.

In Fig. 1t are also in a side sectional view and • illustrates details of the sword case 8 in a view from below. As shown, the sword case at its two lower longitudinal edges 37, 38 per se

3Q had sealing lips 39, 40. Behind the sealing lips 39, 40 a recess 41 is formed which receives an insert 42 for closing the sword case. The recess 41 is preferably dimensioned in such a way that the fin slide 42 is formed by a commercially available batten can be. The insert 42 is, if you do not want to use the sword 11, only by bending the Sealing lips 39, 40 inserted into the recess 41 and held there by the resilient sealing lips.

"" 11

As is also apparent to the person skilled in the art from the view of FIG. 11, it is readily possible to Retrofitting sword mechanisms according to the present innovation also with existing sword cases, since the Construction allows the axis 12 of the sword from above in the side walls of the sword case 8 formed grooves 43 is inserted, at the lower ends of which a bearing 44 is provided for the axle 12.

All from the description, claims and drawings emerging features and advantages of the innovation, including structural details and spatial Arrangements can be essential for the innovation both on their own and in any combination.

Claims (1)

* *> ι ι ι • ° λ · · ι fl f 9 j ti ι Hans Fichtner, Weilheimer Strasse 22, D- 8124 Seeshaupt April 16, 1986 PROTECTION APPROACH
ICl 1. sword for a sailboard, which box in a sword ■ is pivotally mounted about an axis between a substantially vertical and a fully submerged in the sword box position and from 4p upper side is adjustable by means of a Fußbetätigungseinrichtung, characterized in that the Fußbetätigungseinrichtung from a slide (3), which is guided in rails (4, 5) parallel to the longitudinal 2Q central axis of the sail board (1) is displaceable that the The slide (3) is connected to the sword (11) via a thrust lever (13), one end (14) of which is around a first Pivot axis (15) is pivotally attached to the carriage (3) and the other end (16) about a second pivot axis (17) is attached to the sword (11), and that the second pivot axis (17) at a distance from the axis (12) of the sword (11) is arranged. 2. Sword according to claim 1, characterized in that g ₀ the pivot axes (15, 17) of the thrust lever (13) in such a way ! are arranged that in the fully collapsed position j of the sword (8), which is the foremost position of the Corresponds to the slide (3), the dead center of the thrust lever (13) is exceeded. 35 3. Sword according to claim 1 or 2, characterized in that a foot loop on the top of the slide (3) (10) is provided. 4. Sword according to one of the preceding claims, characterized in that the rails (4, 5) by two with the U-profile pieces (19, 20) facing each other are formed on open sides, which are parallel to the upper edges (6, 7) of the sword case (8) are arranged. 5. Sword according to claim 4, characterized in that the slide (3) by means of rollers or sliders (21) is tied and slidably mounted within the U-profile pieces (19, 20). 6. Sword according to one of the preceding claims, characterized characterized in that a locking device (22) is provided for intermediate positions of the carriage (3). 7. sword according to claim 6, characterized in that the locking device (22) from at intervals in the upper free leg (23) of one or the U-profile pieces (19, 20) provided locking openings (24) and one or more locking pins (25) attached to the slide (3) consists, and that the locking pin (25) by pressing down the slide (3) against on the lower free legs (27) of the U-profile pieces (19) sliding springs (26) are releasable. 8. Sword nacS. Claim 7, characterized in that on the springs (26) rollers (28) are provided which run in the U-profile pieces (19, 20). 9. Sword according to one of claims 1 to 6, characterized in that that the locking device (22) consists of sawtooth-like ratchet elevations (34) on the lower free Legs (27) of the U-profile pieces (19, 20) and locking edges (31) on the carriage (3), the locking edges (31) can be released by lifting or tilting the slide (3). 10. Sword according to claim 9, characterized in that the front end of the carriage (3) on rollers (33) in the U-profile stitching (19, 20) is stored, and that the rear edge (31) of the carriage (3) forms the locking edge (31). . 11. Sword according to claim 10, characterized in that the lower free legs (27) of the U-profile pieces (19, 20) on the free edge (35) with an upward I genen bar (36) are provided, which the grid elevations f (34). j 12. sword after one; dsr claims 5 to 11 * dadursh ge f indicates that the locking device (22) for j a forward movement of the carriage (3) can be driven over | is. I. 13. Sword according to one of the preceding claims, characterized in | characterized that, as is known per se, at both below | ren longitudinal edges (37, 38) of the sword case (8) tight! ip- | pen (39, 40) are provided, and that behind the sealing lip f pen (39, 40) a recess (41) is formed which j an insert (42) for closing the sword case | (8) records. '| 14. Sword according to claim 13, characterized in that 1 the recess (41) is dimensioned such that the insert | (42) is formed by a batten. |