DE2027004A1 - Asynchronous rudder for multihull boats - Google Patents

Description

Asynchronous rudder for multihull boats.

Description.

The asynchronous rudder system consists of: 2 rudders, a coupling rod with firmly angled ends, each with a cruciate ligament joint or the like between Rudder and clutch rod and one or more tiller.

When steering, the movement is from the tiller to the clutch rod transferred and from there via the erectile joints to the oars 0 by this arrangement the rudder changes from the midships position, when the rudder is turned to starboard or port, the radius of the attacking force.

If the rudders are turned to port from the midship position, then the port rudder is depressed and the starboard rudder is pulled However, the port rudder takes place on a smaller radius than the pull that occurs during the same movement at the starboard rudder.

The difference in radius is always there; the size of the difference depends on the dimensions of the cruciate ligament joints, and at what distance from the rudder pivot point they are attached.

The cruciate ligament joints are arranged so that the port rudder is from Midship position to harti port and back to midship position via the inner joint closer to the ship, i.e. over the smaller radius Amidships position until hard to starboard, the port rudder is moved over the outer, The joint distant from the ship is guided, i.e. over the larger radius.

The same only occurs in opposite directions at the starboard rudder instead of.

Since both rudders are operated simultaneously via the same clutch rod two differently large radii of the lever attachment points arise during the control movement on the oars and thus differently large paths of impact of the two oars Inside the curve rudder turns strongly, the outside curve only schwwoh.

The joint known as the cruciate ligament joint is a double joint, which can be opened and closed on both sides.

It consists of two outer shells, which are connected by tapes or rows of tapes are connected diagonally and crosswise. The endpoints of the ligaments are over The hinges are connected to the outer shells. The end points of the straps are aligned Instead of the hinges, plastic strips or the like can also be used if they can move like a hinge. The outer shells can also be made of the connected parts directly, here the rudder blade upper part and the coupling rod leg are formed.

The tiller can be designed as a single or double tiller be.

In the case of an undivided coupling rod, the tiller must be in the connecting part the coupling rod provides an alternative, since the center point the coupling rod changes slightly when the rudder angle changes Radius. Or the coupling rod is divided and both parts left and right hung on the tin or on the pins.

A center rudder can also be attached for trimarans, which is simply carried by the center tiller or coupling rod.

The new feature of the asynchronous rudder for multihull boats is the use of Cruciate ligament joints or the like and the utilization of the combination of cruciate ligament joints and rigidly angled he Eupplun rod, which allows it to be attached to any rudder or to each tiller with any distance two attack points for the rudder circle movement to be installed in order to achieve an asymmetrical deflection of the rudder blades with a symmetrical starting position and parallel tiller guidance, if the cruciate ligament joints sit directly at the oars, advantage: (more general) the different oar positions When the oars are taken, the maneuverability of a multihull boat is improved.

Since with a given course change or turn the outer arc of the circle Hull has to describe a larger curve than the inner hull the new arrangement allows more speed because the angle of its rudder is smaller is.

(more special) The system described is very maria tion capable and uncomplicated.Depending on the vehicle or construction requirements, the asymmetrical turn of the Oars can be effected on the popper tiller or on the oars.

It can therefore also be connected to existing double rudder systems with previously usual parallel guidance of the rudder. You can also move the cruciate ligament joints on the rudder blade are precisely adapted to the requirements of the hull will.

The closer to the hull the cruciate ligament joints are attached to the rudder are, the greater the difference in the steering angle of the oars.

So it can practically all with one dimension of the cruciate ligament joints Question of upcoming rudder angle differences can be set.

Another advantage of the asynchronous rudder described is that that they are also suitable for trimarans, simply by attaching a center rudder This would then be controlled directly by the center tiller or the coupling rod without any further constraints.

Claims (1)

Protection claim. Protection is claimed for the unequal but coherent Control of the two rudders of a multihull boat effecting arrangement of the structural parts Coupling rod with rigidly angled ends and the cruciate ligament joints or the like between the coupling rod and the oars. The coupling rod can be divided; the length is not fixed. The outer shells of the cruciate ligament joints can be removed from the rudder components and coupling rod can be formed directly. The cruciate ligament joints can be hinge-like instead of hinges movable plastic belts or the like, it can be between Starboard rudder and port rudder a center rudder must be inserted. Sub-claim 1 on the subject of the application. A claim is made to protection for a variant of the main claim registered "asynchronous rudder for multihull boats" insofar as in dependent claim 1 the connecting rod is divided in the middle, and that the cruciate ligament joints between The coupling rod and tiller are attached; the rudder and coupling rod are through simple joint connected. A third rudder can be used on the center tiller. Sub-claim 2 on the subject of the application. Protection is claimed for a variant of the main one claim registered "asynchronous rudder for multihull boats" insofar as in the subclaim 2 the coupling rod does not steer the rudder, but rather, via the cruciate ligament joints, the Pinning. The cruciate ligament joints are on the outside of the tiller, the angles of the coupling rod, encircle the tiller ends or cross the tiller. These can can then be continued in any length beyond the coupling rod.