RU2771974C1 - Modular trimaran - Google Patents

Abstract

FIELD: shipbuilding.

SUBSTANCE: invention relates to small shipbuilding and water transport, in particular to collapsible ships used for water recreation and sports. The modular trimaran includes a lightweight central hull with cockpits for passengers, two types of floats, power beams, springboards and sailing equipment. A steering wheel is installed on the transom of the central body. The central hull and floats are connected by transverse power beams and cable braces, a springboard is installed between the middle and stern beams, and masts with sailing weapons are installed on the middle and bow beams. The trimaran is used in rowing and sailing modes.

EFFECT: universality and increased reliability during operation are achieved.

5 cl, 10 dwg

Description

The modular trimaran has a central hull with two self-draining cockpits, similar in design to racing sea kayaks, and two floats of different modifications: short (up to 1.1 m) floats of small volume (from 4 to 11 liters) for a purely rowing trimaran or long (5. 2 m) floats up to 125 l each for a sail-rowing or electric rowing trimaran. These components of the trimaran have a high aspect ratio and low resistance to movement due to specially designed contours. The central body and floats are made of composite materials by vacuum infusion. The sail-rowing and electric-rowing trimaran also include (partially folding) springboards.

Optimally matched contours of the central hull and propeller outriggers, as well as optimization of the distances from the point of suspension of the propeller outriggers to the water vertically and to the central outrigger horizontally, optimization of the distribution of the volume of the propeller outrigger along its height and optimization of the relative position of the cockpits of the propeller outrigger, the main propeller itself, floats, power beams, jumps, allow you to create a light rowing, sailing-rowing or electric rowing vessel with a simultaneous combination of the following properties, unattainable within the framework of the concept of conventional single-hull rowing vessels (classic and racing sea kayaks) or the concept of ordinary light sailing vessels (dinghies, catamarans and trimarans) :

a) low wave resistance due to a significant elongation of the central body;

b) good stability;

c) sufficient carrying capacity for hiking,

d) the possibility of simultaneous use of both rowing rigs and sailing rigs or both rowing rigs and electric propulsion powered by solar panels.

As a result, the modular trimaran is suitable for long marathon races and hiking trips along inland waterways and in the coastal zone of the seas. Also, such trimarans can be used for fitness training for beginners (for whom the racing kayak is too unstable), for fitness training in conditions where the use of unstable racing kayaks is undesirable (cold water, strong current), as well as for fitness training of people with disabilities .

At the same time, the geometry of the power beams, the geometry of the location of the outriggers relative to the central body and the water, as well as the distribution of the volume of the outriggers along the height, are selected in such a way as to minimize: a) rolling and b) braking on waves (with a wave amplitude of up to 0.5 - 0.7 m ). If we choose the distance from the central body to the outriggers and the volume of the propeller outriggers in such a way that the corresponding decrease in the speed of the propeller trimaran due to an increase in its mass and hydro- and aerodynamic resistance of the outriggers will not be critical, but at the same time, it will allow creating an electric trimaran on the basis of such a trimaran solar-powered, with the possibility of simultaneous use of kayak oars (with a sufficient distance from the outriggers to the central body) and an electric propulsion powered by solar panels.

The high stability of the rowing trimaran with spaced outriggers and the possibility of supplying it with springboards make it possible to use the rowing trimaran on its basis for the rehabilitation of people with disabilities.

The above modular trimaran consists of typical modular elements:

• central building;

• rowing and sailing outriggers;

• power beams;

• springboards;

• sailing equipment;

• flexible solar cells and an electric motor for an electric trimaran.

EFFECT: invention allows to reduce the cost of introducing different types of trimarans and allows the consumer to choose the desired set for himself, or to supplement the basic package as far as financial possibilities are concerned.

At the same time, the modular trimaran is partially collapsible (easy and quick (up to 10-15 minutes) disassembly by 1 person) and easily transportable on the external trunk of a car.

The main properties of the invention:

1. Assembly or disassembly time (disassembly to a state that allows transporting the vessel on a car roof rack): no more than 15 minutes by 1 person;

2. Time to bring the vessel from sailing to rowing position or vice versa: no more than 10-15 minutes by 1 person;

3. Ability to use in sea water without the risk of damage to the elements of the vessel;

4. Possibility to tilt the vessel in the mode of movement under sailing weapons;

5. Self-draining cockpits with water ejectors (2 pcs), with the ability to close the holes for draining water (in calm weather), like on racing sea kayaks;

6. The central body has airtight compartments (they are also cargo compartments), equipped with hatches that ensure their high tightness. Pressurized compartments are located in the bow, in the stern, and in the central section of the vessel. Unlike a kayak, access to the pressurized compartments of the vessel is possible without leaving the land (afloat);

7. In any scheme, rowing equipment provides optimal rowing ergonomics for a crew of 2 people. At the same time, the crew has foot rests combined with steering pedals and comfortable seats to ensure rowing ergonomics.

8. The possibility of using both rowing and sailing weapons, incl. simultaneous use of oars and sails.

9. Ability to use different types of interchangeable outriggers (floats).

10. The possibility of using solar energy for the movement of the trimaran under the electric motor due to flexible solar panels placed on the jumps. Possibility of simultaneous use of paddles and electric drive, in one of 2 modes: speed priority or power consumption priority.

Brief description of the drawings

As an example, the following drawings show a modular trimaran according to the present invention, where:

Fig. 1 - the main view of the trimaran.

Fig. 2 - side view of the trimaran.

Fig. 3 – top view of the trimaran.

Fig. 4 - schematic sections A-A, B-B, C-C in the bow, central and stern parts of the trimaran.

Fig. 5 - the main view of the central body of the trimaran (racing kayak).

Fig. 6 is a top view of a kayak with paddle floats.

Fig. 7 is a front view of a kayak with paddle floats.

Fig. 8 is an isometric view of a sailing-rowing trimaran in rowing mode.

Fig. 9 is an isometric view of an electric rowing trimaran in rowing mode with solar panels and an electric motor.

Fig. 10 is an isometric view of a sailing-rowing trimaran in the sailing position, with springboards unfolded.

Detailed description of an embodiment of the invention

In FIG. 1-10 shows views of the modular trimaran according to the present invention, including the central hull (1), floats (2, 6), power beams (3), springboard (4a, 4b), sailing rig (5), skeg (7), swivel rudder (8), stay (9), shrouds (10), guy lines (11) and flexible solar cells (12) with an electric motor and daggerboards (13).

The central body (1) has contours close to a racing sea kayak and two cockpits. Floats (2) in cross section (Fig. 4) have a wing profile, which allows you to create a force that counteracts the lateral drift in the mode of using sailing weapons. The floats and the central body have a large relative elongation. So, the central body (1) has a length of 6.8 m and a width of 0.54 m. The floats have a width of 0.12 m and a length of 5.2 m. A steering wheel is installed on the transom of the central hull. On the bottom, in addition, to give directional stability on tail waves, a skeg (7) can be installed. In the “sail-and-row trimaran” configuration, a swivel pin (13) can be installed on the middle crossbeam for additional drift resistance.

Due to the width of 0.54 m, the central hull (1) without floats can be used as a racing sea kayak (Fig. 5-7) with stability acceptable for experienced paddlers. For training, paddle floats (6) can be fitted to the racing kayak as shown in FIG. 6, 7. The CC with floats can be used for training beginners and for marathon races on inland waterways and in the coastal sea strip, in conditions of wind and waves with an amplitude of up to 1 m.

The central body (1) and floats (2) are connected by transverse power beams (3) and cable braces (11). A springboard (4) is installed between the middle and aft beam. Masts with sailing weapons (5) are installed on the middle and bow beams. The springboard is partially collapsible so that the sail-rowing trimaran can move both under oars and under sail rigging, or simultaneously under oars and under sail rigging (in light and moderate winds). The movable part of the springboard (4b) is folded onto the fixed part of the springboard (4a). From above, in calm conditions, masts (5) with sails removed from their regular locations can be stacked (Fig. 8). Flexible solar panels (12) can be installed on the fixed part of the springboard to enable the use of a trimaran equipped with an electric motor in the "electric rowing trimaran" configuration.

The presence of airtight compartments in the central body allows you to transport any cargo without the risk of damage.

Claims (5)

1. Modular trimaran, including a lightweight central hull with cockpits for passengers, floats of two types, power beams, springboards and sailing equipment, characterized in that a rudder is installed on the transom of the central hull, while the central hull and floats are connected by transverse power beams and cable braces , a springboard is installed between the middle and stern beams, and masts with sailing weapons are installed on the middle and bow beams, while the trimaran is used in rowing and sailing modes. 2. Modular trimaran according to claim 1, characterized in that the central body can be used as an independent racing kayak. 3. Modular trimaran according to claim 1, characterized in that it can be equipped with an electric motor and solar panels. 4. Modular trimaran according to claim 1, characterized in that it has a partially prefabricated springboard for switching from sailing to rowing mode of movement if necessary. 5. Modular trimaran according to claim 1, characterized in that all components of the trimaran are separate assembly units and are assembled into a single trimaran structure within 15 minutes.

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