DE102009060818B4 - Notruder for sailing yachts - Google Patents

Abstract

The steering system of a sailing yacht is exposed to very high forces in stronger winds and increasing swell, which u. U. can lead to the rudder shaft / rudder blade breaking. In addition, floating debris can cause rudder damage if it collides with the rudder blade. A yacht with a malfunctioning steering gear is incapable of maneuvering. If the seamanship cannot help itself, an appropriate emergency call must be triggered via marine radio and a sea rescue cruiser must tow the distressed vessel away. There is currently no simple emergency rudder, which can easily be installed in such a case. The specialist literature recommends the makeshift construction of an emergency rudder with the help of a spinach tree and base plate or the like or the use of sea anchors. The invention is intended to provide a solution so that an emergency rudder mounted on the yacht can be assembled and installed quickly and easily and so that the yacht can be maneuvered quickly in the event of an accident. The emergency rudder should be suitable for different hull shapes with a secure fit on the hull. The emergency rudder consists of a flexible base mat (4) in which a base plate (5) is embedded, to which a bolt (6) is attached. The bolt serves as the rudder shaft for the rudder blade (1), the tubular sleeve (2) of which is mounted on the bolt and secured with a split pin (19) or similar. A washer (20) prevents the rudder blade from rubbing against the plastic mat. Tension belts (9) are attached to all four rounded corners of the base mat. Two guide rings (8) for guiding a steering sheet are also attached to the base mat. The rudder sheet is attached to the rudder blade with shackles (13) (hole: 3). After assembling these individual parts, they are installed under the hull of the yacht by locking and tensioning the tensioning straps in the yacht's cockpit. The feet of the sea fence are used to allow the tensioning straps to be as cross-shaped as possible and thus to achieve a non-slip position of the base mat adapted to the hull. After connecting and tensioning the steering sheet in the cockpit of the yacht, the rudder blade can be turned around the bolt (rudder shaft) by pulling the steering sheet to port or starboard. It is thus possible to steer the yacht. The simple assembly and installation as well as a possible box-friendly mass production could lead to the fact that in future every sailing yacht will have such an emergency rudder with it, so that it can be maneuvered again quickly and easily if the rudder breaks.

Description

The invention relates to a Notruder for sailing yachts according to claim 1.

Sailing yachts have one or two submarine rudder blades mounted on a rudder shaft (usually laminated) driven by a tiller or wheel control. By laying the tiller or turning the wheel control, the rudder stock and the rudder blade located on it are turned. With the rotation of the rudder blade, the flow conditions of the underwater ship change - the yacht becomes controllable.

The steering gear is exposed in strong winds and increasing swell very large forces, which can lead to a defective mechanism of the wheel control or the rupture of the compound rudder / rudder blade. In addition, flotsam can cause a rudder damage in a collision with the rudder blade.

A yacht with a malfunctioning steering gear is unable to maneuver. If the seamanship can not manage itself, a corresponding emergency call must be triggered via maritime radio and a lifeboat must tow the stricken vessel.

Although sailing yachts with wheel control have a so-called emergency tiller for a defective wheel control mechanism, there is no standardized replacement rudder blade or the like in the case of a breakage of the rudder blade.

• – Bau eines Notruders aus Spinackerbaum und Bodenbrett (oder vergleichbarer Teile einer Yacht) und Befestigung am Heck der Yacht
• – Nutzung von Treibankern

In the literature, the following auxiliary measures are described in such a case:

• - Construction of a helm of spinach tree and floorboard (or similar parts of a yacht) and attachment to the stern of the yacht
• - Use of sea anchors

From the WO 2009/004323 A2 is a Notruder for sailing yachts is known in which a rudder blade with the help of a band and two ropes is attached to the sailing yacht. The rudder is moved with the tiller.

The patent US 1363 961 A describes an emergency rudder, which has two standing at an angle of 90 ° to each other arms, wherein in the untensioned state under the hull by means of ropes one arm protrudes from the hull. On this arm, a rudder blade is rotatably mounted, which is operated by means of a rudder blade attacking, tensioned control sheet. This Notruder can not be attached to different hull shapes of sailing yachts in the rear area, as this would require the adjoining support depending on the hull shape.

The invention has for its object to provide an emergency rudder for sailing yachts, which is suitable with a simple structure and secure fit on the hull for different hull shapes.

This problem is solved by the features of claim 1.

Advantageous embodiments of the invention are specified in the subclaims.

In the case of a rudder break, the emergency rudder, with which the yacht can be controlled, can be installed quickly and easily. This eliminates the sending of an emergency call and the possible use of a rescue boat.

A space-saving storage, easy installation and a possible low-cost mass production could mean that in the future every new sailing yacht from the shipyard will be equipped with such an emergency rudder or the emergency rudder will be available as an accessory.

• – Seewasserbeständig
• – Die verwendeten Spanngurte und Taue sind reckarm, um das Spiel zu minimieren bzw. die Spannung der Vorrichtung zu erhalten

All materials to be used have the following properties:

• - Seawater resistant
• - The tension straps and ropes used are low-stretching, in order to minimize the play or to maintain the tension of the device

An embodiment of the invention is shown in the drawings and will be described in more detail below.

Show it:

Picture 1: A rudder blade of a Notruder

Picture 2: A basic mat

Picture 3: A clamping device

Picture 4: A tax sheet

Picture 5: A sailing yacht in side view with functioning rudder blade

Picture 6: A sailing yacht in side view, unable to maneuver without rudder blade

Fig. 7: The assembly of the rudder in side view

Picture 8: The assembly of the control sheet, view from the back

Figure 9: The attachment to a maneuverable yacht in side view

Figure 10: The function of the rudder, seen from above

• a) Ruderblatt 1 (Bild 1)
• b) Basismatte 4 (Bild 2)
• c) Spannvorrichtung (Bild 3)
• d) Steuer-Schot (Bild 4)

An emergency rudder 21 for sailing yachts consists of the following items:

• a) rudder blade 1 (Image 1)
• b) base mat 4 (Picture 2)
• c) Clamping device (Picture 3)
• d) Control sheet (Figure 4)

The rudder blade 1 Figure 1 shows a flow-optimized, pre-balanced rudder blade 1 with a firmly connected tube sleeve 2 , The shape, size and thickness of the rudder blade and the tube sleeve is to be dimensioned in various grades for certain yacht sizes as required. In the upper area of the rudder blade 1 is located on the pipe sleeve 2 opposite side a hole 3 , which can be used for shackles, rings or similar.

The basic mat 4 as shown in Figure 2 is a flexible plastic mat that can adapt to the surface shape of the hull with appropriate pressure and is non-slip due to high static friction. From her a bolt protrudes 6 out, which serves as a rudder stock and into the tube sleeve of the rudder blade 1 fits. The bolt 6 is for stabilization, inter alia, with a base plate 5 connected, which is frictionally embedded in the plastic mat. The corners of the plastic mat are rounded; there are openings on them 7 for straps 9 , On the outer sides of the base mat are 2 guide rings 8th for the guidance of the tax sheet.

The clamping device according to Figure 3 consists of 4 high-quality wide straps 9 whose ends 10 on the one hand to the openings 7 the base plate are mounted. At the other ends of the straps are turnbuckles 11 with ratchets that allow for the assembly of the rudder to connect and tension the straps.

The tax sheet according to Figure 4 consists of two low-stretch thin ropes 12 , On one side of the ropes is a shackle 13 attached, for fixing the ropes to the rudder blade 1 serves. The other two ends of the pods can be fitted with a turnbuckle 11 be connected with ratchet and cocked.

Figure 5 and Figure 6 illustrate the problem of maneuverable sailing yacht due to rudder breakage. They show a transom 22 the sailing yacht, one below the waterline 15 lying propeller 16 and a rudder blade 17 (before accident) and a rudder stock 18 without rudder blade (damage).

The emergency rudder 21 is stored in parts in the ship. If the rudder is broken, it is mounted as shown in Fig. 7. This is the tube sleeve 2 the rudder blade 1 on the bolt 6 the basic mat 4 (as shown in picture 2) and with a split pin 19 o. Ä. Secured.

Between tube sleeve 2 and base mat 4 there is a washer 20 making a grinding of the rudder blade 1 at the base mat 4 prevented.

The 4 straps 9 are already at the openings 7 the basic mat 4 preinstalled. The open ends with the turnbuckles first hang in the air and are needed when mounting on the yacht.

Figure 8 shows the assembly of the control sheet. The two shackles 13 the ropes 12 be in the hole 3 the rudder blade 1 attached. The other ends of the ropes 12 be through the guide rings 8th guided in the base mat. The location of the hole 3 and the guide rings 8th is chosen so that optimum leverage by pulling on both open ends of the ropes 12 prevails. To optimize the power relations, the pods could also be combined with tackles and springs or the like.

Figure 9 shows the assembly of the rudder on the maneuverable yacht. The according to the previous description mounted Notruder 21 is pulled under the stern of the yacht and then with the 4 ends of the straps 9 attached. The straps behind the respective supports 14 of the sea fence to stretch the flexible base mat as best as possible. The ends of the straps are in the cockpit 25 the yacht with turnbuckles 11 closed and clamped with the help of ratchets (Figure 10).

Due to the tension, the flexible base mat adapts to the hull shape. Due to the width of the straps, the tension and the static friction properties of the base mat as well as the shape of the fuselage slipping of the rudder is excluded even under load. To strengthen this condition if necessary, the tension straps can be beaten once before stretching around the supports of the sea fence.

Finally, the two ends of the control sheet perpendicular to the shortest path in the cockpit 23 the yacht connected and moderately stretched according to Figure 10.

By pulling the control sheet in the cockpit (Figure 10) to port or to starboard is the rudder blade 1 accordingly pulled in one direction and thus turns around the bolt 6 who serves as a rower. The yacht is steered to starboard or to port as in a tiller steering.

The emergency rudder can be used again at any time after disassembly and storage.

LIST OF REFERENCE NUMBERS

1

Flow optimized pre-balanced rudder blade

2

tubular sleeve

3

Hole in rudder blade

4

base mat

5

baseplate

6

bolt

7

Opening for tension belt

8th

Guide ring for control sheet

9

strap

10

Ends of the tensioning strap for attachment to base mat ( 7 )

11

Turnbuckle with ratchet

12

Low-stretching dew

13

Shackles

14

Props of the sea fence

15

waterline

16

propeller

17

Rudder blade (before damage)

18

Rudder shaft without rudder blade (Havarie)

19

cotter

20

washer

21

Notruder according to pictures 7 and 8

22

Tail mirror of the yacht

23

Cockpit of the yacht

Claims (8)

Emergency rudder ( 21 ) for sailing yachts, consisting of - a flexible basic hull adapting to the hull shape ( 4 ) with a recessed base plate ( 5 ), - a bolt ( 6 ), which is connected to the base plate ( 5 ) is connected and protrudes from this, - a rotatable on the bolt ( 6 ) rudder blade ( 1 ), - a tensionable, low-return control sheet, which at the rudder blade ( 1 ) to serve this - and straps ( 9 ) for the installation of the rudder ( 21 ) under the hull of the sailing yacht. Emergency rudder ( 21 ) according to claim 1, wherein the base mat ( 4 ) is formed as a plastic mat. Emergency rudder ( 21 ) according to claim 1 or 2, wherein the rudder blade ( 1 ) a pipe sleeve ( 2 ), with which it on the bolt ( 6 ) is rotatably mounted. Emergency rudder ( 21 ) according to one of claims 1 to 3 with a split pin ( 19 ) at the free end of the bolt ( 6 ) for securing the rudder blade ( 1 ). Emergency rudder ( 21 ) according to one of claims 3 or 4 with a washer ( 20 ) on the bolt ( 6 ) between the tube sleeve ( 2 ) and the base mat ( 4 ). Emergency rudder ( 21 ) according to one of claims 1 to 5, each with a guide ring ( 8th ) for the control sheet on the outer sides of the base mat ( 4 ). Emergency rudder ( 21 ) according to one of claims 1 to 6, wherein the control sheet has two ropes ( 12 ), at whose one end a shackle ( 13 ) attached to a bore ( 3 ) in the rudder blade ( 1 ) attacks. Emergency rudder ( 21 ) according to claim 7, wherein the other ends of the ropes ( 12 ) with a turnbuckle ( 11 ) are connected by ratchet to the ropes ( 12 ) to tension.

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