DE102004012760A1 - Twin-hull catamaran craft, with a sail, has structured hulls with a double concave V-shape in the water and a mast mounting angled towards the stern with trapezoid supports - Google Patents

Abstract

The twin-hull catamaran craft has hulls (1) with a half-round shape towards the deck and a double-concave V-shape in the water. The mast mounting is aligned slightly towards the stern for the sail (6), supported by trapezoid struts (2.2), linked together by a horizontal strut (3) at the top supported by a strut (4) at a connection (5) between the hulls. The horizontal strut has a sliding guide (7) for the upper spar (6.1) also secured to the connection, and the lower spar (6.2) is taken by a sheet (8).

Description

The The invention relates to a catamaran type multi-hull sail vehicle, which at least two interconnected at a certain distance hulls and having a sails held by mast system.

There are known such conventional vehicles, which provide both a variety of shapes and dimensions of hulls and mast systems for receiving a sail (AS 1036685, EP 1 180478 ).

According to US 2002/0178985 A1 proposes a catamaran with a hull pair known per se, which has a mast system, which extends arcuately over both hulls and by means of sledges movable, each outside at the top of the hulls, is attached. For holding a known crab claw sail only serves a device that on the floor-mounted mast system means several leashes and with the upper sparrow of the crab claw sail connected is.

The lower spar is merely connected by two lines connected to the hull are held.

adversely In this case it appears that the crayfish sail, in very wide Areas rotatable and pivotable on a single, even not fixed Device, ie at a Schiffslängs- and transverse direction variable Point suspended is and is guided only by means of two lines.

The means a bewildering variety of possible sail settings, the course keeping and maneuvering safety affect so that operation by inexperienced sailors are excluded got to.

Further the complexity of the mast system appears Device for receiving the crayfish sail itself and its handling over several required lines and the necessary synchronous movement of the entire mast system by means of the hulls arranged carriage only possible to be if at least one crew of two to three people on board. In addition, this is a total of A very complicated construction that is disadvantageous affects the weight and cost of the sailing craft.

task Therefore, it is easier for this invention to provide a multi-hulled sailing craft To create a construction that has very good sliding properties and a has simple sail structure, and high speeds and allows by above average maneuverability and capsizing safety.

The The object is achieved by a Multi-hull sail vehicle solved, their hulls on both sides sloping, about half-round deck, have and their bottom surfaces double concave V-shaped are formed.

At the outsides of these hulls a mast system is rigidly attached, which trapezoidally on each other tapered supports exists, which are held at the upper end by means of transverse web.

Of the Crossbar is also over a strut with one in the bow area between the hulls attached Connecting element connected. One located on the crosspiece, on this laterally movable slide takes the upper spar a per se known crayfish sail, which also with its tip attached to the connecting element between the hulls is.

The Lower sparrow of crab claw sail is held with a sheet.

It is beneficial that the hulls in the bow area have a strong doppelkonkaves V-shaped profile, the in the middle area in a straight double concave profile with nicks Outside edges passes and after all in the rear again as coupling concave profile with strong V-shape expires.

there should the length-to-width ratio of a Hull larger than Be 14: 1.

Further should the inclination of the supports to the bow of the hulls at about 75 degrees.

By the inventive design the hulls in connection with the concrete arrangement of the crab claw sail, which is fixed at its tip, with the upper spar laterally slidably held on the crossbar and with the lower spar by Schot guided is achievable, achievable speeds on the water as possible implement lossless. The hull shape on the bottom side allows a early Planing at moderate wind speeds and the rounded one Deck largely prevents undercutting of the hulls, since the passing one Water immediately drains sideways again.

Furthermore ensures the special hull shape for an enormous static and dynamic buoyancy.

The favorable Length-width ratio of the hulls results about that In addition, a narrow wave pattern with the lowest possible total resistance.

The Multi-hull sailing vessel according to the invention allows thus high speeds with above-average maneuverability and capsizing. The ease of use allows it to even one little experienced Person can use this sailor alone.

The Invention will be explained in more detail below using an exemplary embodiment. In the associated Drawings show:

1 the design of a fuselage with cross-sectional representations

2 the overall structure of the solution according to the invention.

An in 1 illustrated hull 1 has the bottom side in the bow area a slightly doppelkonkaves V-shaped profile 1.1 towards the center of the fuselage into a straight double concave profile 1.2 goes over and in the rear again as doppelkonkaves profile 1.3 with strong V-shape leaking.

The deck of the hull 1 is semicircular, so sloping to the sides, designed.

2 shows the attached to the hulls, inclined at an angle of about 75 degrees to the bow, trapezoidal converging supports 2.1 and 2.2 by means of crosspiece 3 are connected. Between the crossbar 3 and a connecting element 5 which the two hulls 1 Connecting at the bow is a strut 4 arranged. The mast system designed in this way takes the crab claw sail 6 on, with its tip on the connecting element 5 is attached.

The upper spar 6.1 of the crab claw sail 6 is via a sliding device 7 with the crossbar 3 so connected that the crab claw sail 6 between the columns 2.1 and 2.2 can be moved laterally to and fro as needed.

At the lower spar 6.2 of the crab claw sail 6 is a sheet to the leadership 8th intended.

1

hull

2.1 2.2

support

3

crosspiece

4

strut

5

connecting element

6

Crab claw sail

6.1

upper spiere

6.2

lower spiere

7

slide

8th

sheet

Claims (4)

Multi-hull sailing vessel, comprising at least two interconnected at a certain distance hulls and a mast system that receives a per se known crab claw sail, characterized in that the hulls ( 1 ), deck-side half round and bottom side double concave V-shaped are designed to record a bow slightly inclined to the bow mast system consisting of trapezoidal converging supports ( 2.1 ; 2.2 ), the above by means of transverse web ( 3 ) connected by a strut ( 4 ) at one in the bow area between the hulls ( 1 ) ( 5 ) and that the crosspiece ( 3 ) a sliding device ( 7 ), which with the upper spar ( 6.1 ), also on the connecting element ( 5 ), known per se known crayfish sail ( 6 ), while the lower spar ( 6.2 ) with a sheet ( 8th ) to be led. Multi-hulled sailing vessel according to claim 1, characterized in that each hull ( 1 ) on the bottom side in the bow area a strongly doppelkonkaves V-shaped profile ( 1.1 ), which faces the center of the fuselage into a straight double concave profile ( 1.2 ) merges with sharp outer edges and in the rear again as doppelkonkaves profile ( 1.3 ) leaking with strong V-shape. A multi-hulled sailing vessel according to claims 1 and 2, characterized in that the length-to-width ratio of each hull ( 1 ) is greater than 14: 1. A multi-hulled sail vehicle according to claims 1 to 3, characterized in that the inclination of the supports ( 2.1 and 2.2 ) to the bow of the hulls ( 1 ) is about 75 degrees.