DE102009060818A1 - Notruder for sailing yachts - Google Patents

Abstract

Technical problem The rudder system of a sailing yacht is exposed to very high forces in stronger winds and increasing swell. 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 non-functioning rudder view cannot help itself, a corresponding emergency call must be triggered via marine radio and a sea rescue cruiser must tow away the victim. There is currently no simple emergency rudder, which can easily be installed in such a case. The specialist literature recommends the makeshift floor slab or similar or the use of sea anchors. The invention in this patent application 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. Solution to the problem According to the drawing, the emergency rudder consists of a flexible plastic mat (4) in which a base plate (5) is embedded and to which a bolt (6) is attached. The bolt serves as the rudder shaft for the emergency rudder blade (1) whose tubular sleeve (2) is mounted on the bolt and secured with a split pin (19) or the like. 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 plastic mat. Two rings (8) for guiding the control sheet (12) are also attached to the plastic 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 enable the straps to be as cross-shaped as possible and thus to achieve a non-slip position for the plastic mat adapted to the hull. After connecting and tensioning the steering sheet (12) in the cockpit of the yacht, the rudder blade can be rotated around the bolt (rudder shaft) by pulling the steering sheet to port or starboard. It is thus possible to steer the yacht. Field of application The simple assembly and installation as well as a possible cost-effective mass production could lead to the fact that in the 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

1. Technical background and worldwide needs

Sailing yachts have one or two underwater 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 for maritime radio must be triggered and a lifeboat must tow the stricken vessel.

2. State of the art

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

There is currently no simple Notruder, which can be easily installed in such a case.

3. Problems and requirements

• – Einfache Installation und Bedienung
• – Für verschiedene Yachtgrößen/Formen universell einsetzbar
• – Platzsparende Lagerung, seewasserbeständige Lagerung an Bord
• – Geringe Kosten für die Herstellung um u. a. einen weitverbreiteten Einsatz für den Sportbootmarkt zu ermöglichen

The invention in this patent application presents such a universal yaw system for sailing yachts. The following requirements are the basis of the invention:

• - Easy installation and operation
• - universally applicable for different yacht sizes / shapes
• - Space-saving storage, seawater-resistant storage on board
• - Low cost of manufacturing, inter alia, to allow a widespread use for the recreational boat market

4th solution

All the above problems are solved by the invention in this patent application.

• – 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

individual parts

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

The emergency rudder for sailing yachts consists of the following parts:

• a) Notrider sheet (picture 1)
• b) base mat (Photo 2)
• c) Clamping device (Picture 3)
• d) Control sheet (Figure 4)

The Notruderblatt according to Figure 1 is 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 of a bore ( 3 ) which can be used for shackles, rings o. Ä.

The base mat according to Figure 2 is a flexible plastic mat ( 4 ) which can adapt to the surface shape of the hull with appropriate pressure and is non-slip due to high static friction. Out of it protrudes a bolt ( 6 ), which serves as a rudder stock and into the tube sleeve of the Nutruderblatts ( 2 ) fits. The bolt ( 6 ) is for stabilization, inter alia, with a base plate ( 5 ), which is frictionally embedded in the plastic mat. The corners of the plastic mat are rounded at them openings for straps ( 7 ). 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 on the one hand ( 10 ) to the openings of the base plate ( 7 ) are mounted. At the other ends of the straps are turnbuckles with Ratchets ( 11 ), which allow for the assembly of the Notruders the connection and tensioning of 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 ), which is used to attach the ropes to the rudder blade ( 1 ) serves. The two other ends of the pods can with a turnbuckle with ratchet ( 11 ) are connected and stretched.

Figure 5 and Figure 6 illustrate the problem of maneuverable sailing yacht due to rudder breakage.

Assembly

The emergency rudder is stored in individual parts (see above) in the ship. If the rudder is broken, it is mounted as shown in Fig. 7. For this purpose, the tube sleeve ( 2 ) of the emergency rudder blade ( 1 ) on the bolt ( 6 ) of the base mat (as shown in Figure 2) and with a split pin ( 19 ) o. Ä. Secured.

Between tube sleeve ( 2 ) and plastic mat ( 4 ) is a washer ( 20 ), which is a grinding of the rudder blade ( 1 ) on the plastic mat ( 4 ) prevented.

The 4 straps ( 9 ) are already at the openings of the plastic mat ( 7 ) 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 ) of the ropes ( 12 ) are in the borehole ( 3 ) of the rudder blade ( 1 ) attached. The other ends of the ropes ( 12 ) are replaced by the guide rings ( 8th ) in the base mat. The location of the borehole ( 3 ) and the guide rings ( 8th ) are arranged so that optimum leverage by the train at both open ends of the ropes ( 12 ) to rule. 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 of the sea fence ( 14 ) in order to best tension the flexible base mat. The ends of the straps are in the cockpit of the yacht with turnbuckles ( 11 ) and tensioned with the help of the ratchets (Fig. 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, slippage of the rudder is impossible 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 ( 12 ) perpendicular to the shortest route in the cockpit of the yacht ( 23 ) and moderately tensioned as shown in Figure 10.

function

By pulling the control sheet in the cockpit (Figure 10) to port or to starboard, the rudder blade ( 1 ) is 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 with a tiller steering.

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

5. Achieved benefits and outlook

The invention fulfills the requirements according to 3. In the case of a rudder break can be installed quickly and easily an emergency rudder with which the yacht is controllable. This eliminates the sending of an emergency call and the possible use of a rescue boat.

The space-saving storage, the ease of 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.

LIST OF REFERENCE NUMBERS

1

Flow optimized pre-balanced rudder blade

2

tubular sleeve

3

Hole in rudder blade

4

Plastic 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

Screw / 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 (1)

Notruder for sailing yachts - which is installed by tightening under the hull of the yacht with the help of straps - Consisting of a flexible, adapting to the hull shape base mat with recessed base plate with bolts that serves as a rudder stock and a Notruderblatt, which is mounted on the bolt - operated with the help of a stretched low-tension sheet, which is given by leadership optimal leverage for pulling the Notruderblatts and if necessary with the aid of Taljen and springs o. Ä. Enhanced in their effect

Images