WO2005023633A1

WO2005023633A1 - A sailing catamaran

Info

Publication number: WO2005023633A1
Application number: PCT/CN2003/000690
Authority: WO
Inventors: Zhijun Fan; Xiangdong Chen; Qiqiang Pan; Changgen Yao
Original assignee: Beijing Research Institute Of Sports Science
Priority date: 2003-08-19
Filing date: 2003-08-19
Publication date: 2005-03-17
Also published as: AU2003252538A1

Abstract

A sailing catamaran includes two long hulls, cross poles, sail, bridle and rudder. Viewed from the side of the hull, its arc-shaped topside is provided with a turnup forepart and a flat tail, its arc-shaped underside is provided with a high forepart, a low middle part and a raised tail. The planforrn of the hull shows its rectangular tail and sharp-nosed forepart. Its front-view shows a vertical plane inside and an outside cornposed of a plane upper part and a cupped lower part, and the plane upper part gradually reduces from the middle part of the hull to the stem. The back view also shows a vertical plane inside and an outside composed of a plane upper part and a cupped lower part, and the plane upper part gradually reduces from the middle part of the hull to the tail. This catamaran can be widely used in athletic sports and water recreation.

Description

Catamaran sailing

The utility model relates to a sports equipment, in particular to a catamaran sailing boat used for sports competitions and public entertainment.

Background technique

Existing domestic and foreign catamaran sailboats generally include two elongated buoys that connect the two buoys to form a number of horizontal bars. A surface layer is connected between the horizontal bars. The sail is installed on the horizontal bars at the front of the hull through the mast. A rope is installed on the crossbar of the sail and the side of the sail, a stabilizer plate located underwater is installed on the crossbar near the center of gravity of the ship, and a steering rudder is installed on the stern. The following shortcomings exist in the prior art: 1. Generally, the cross sections of two floating bodies are V-shaped or U-shaped, which cannot meet the requirements of water separation, lateral lateral resistance, overturning and large load capacity at the same time. In the above problems, it is necessary to dig a hole in the hull and add a stabilizing plate device, so that the hull structure is complicated and the weight is increased. 2. Existing domestic and foreign sailing ships adopt the same fixed sailing pattern, that is, the movable end of the rope is pulled or fixed at a fixed position on the ship, so the best sailing effect at any angle cannot be guaranteed. . 3. In the course of sailing, if the stern wind is encountered, that is, the sail when the tail wind is filled with the stern wind, it can only be deployed on one side of the mast, causing the hull to deflect to one side, which will cause the hull to overturn in severe cases. . In order to solve this problem, some sailing ships have another forward sail in front of the main sail, and try to balance the force of the main sail with the force generated by the auxiliary forward sail. Although this method can partially improve the above situation, However, when the wind direction changes, the sub-front sail becomes a useless burden.

Invention Disclosure

Aiming at the above problems, the object of the present invention is to provide a catamaran sailing ship that can omit the stability plate and still ensure that the hull has good water separation, lateral sway and overturning resistance, and has a large load capacity.

In order to achieve the above purpose, the utility model adopts a technical solution: A catamaran sailing ship, which comprises two elongated floating bodies and a plurality of horizontal linkages connected to the floating buoy, and a surface layer is connected between the horizontal linkages, and the sail passes The mast is mounted on the horizontal bar at the front of the hull, the bottom bar of the sail is equipped with a lanyard, and the stern is equipped with a steering rudder, which is characterized in that, from the side of the floating body, its top surface is front high and flat. It is arc-shaped, and the bottom surface is arc-shaped with high front, mid-low, and back-up; viewed from the top surface of the floating body, its rear portion is rectangular, and it contracts inwardly from the middle to the front end to form an outer arc; from the floating body Seen from the front, its inside It is in a vertical plane, the outer upper part is a straight edge, and the middle and lower parts are contracted inward to form an inner arc, and from the middle of the floating body, the connection point between the inner arc and the straight edge is gradually increased from the front to the top. Until the apex of the foremost end of the hull is reached; viewed from the back of the buoy, its inner side is also a vertical plane, the outer upper part is a straight edge, the middle and lower parts shrink inward to form an inner arc, and from the middle of the buoy, The connection point between the inner arc and the straight edge gradually increases from the back to the back.

A slide rail may be provided on the horizontal bar near the middle of the hull, and the movable end of the lanyard is connected to the slide rail through a connecting member, so that the sail always maintains the optimal sail shape.

Said masts may be provided with sails of the same shape on both sides, so that when the stern wind appears, the sails on both sides are all opened laterally, and the wind sails forward.

A drive hook may be provided on the horizontal bar at the rear of the hull to drive the hull forward when there is no wind.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the appearance of the utility model

Figure 2 is a schematic top view of the present invention

Figure 3 is a schematic side view of the floating body of the present invention

Figure 4 is a schematic front view of the present invention

Figure 5 is a schematic rear view of the present invention

Figure 6 is a schematic diagram of the butterfly sail of the present invention

The best way to implement the invention

As shown in FIG. 1 and FIG. 2, the utility model includes two elongated floating bodies 1. Three horizontal links 2, 3, 4 are connected between the two floating bodies 1, and the upper surfaces of the horizontal links 2, 3, 4 are connected and arranged. There is a nylon canvas surface (not shown) for standing or sitting. The sail 5 is connected to the mast 6 by a rope. The mast 6 is installed on the crossbar 2 near the front of the hull. The end of the crossbar 7 at the lower part of the sail 5 is connected with a rope 8 and a steering rudder 9 is installed at the rear of the hull. 10.

The floating body 1 of the present utility model is different from the prior art. When viewed from the side of the floating body 1 (as shown in FIG. 3), the top surface 11 of the floating body 1 has an arc shape with a front height and a flat rear shape, and the bottom surface 12 has an arc shape with a front height, a medium low, and a backswing . When viewed from the top surface of the floating body (as shown in FIG. 2), the rear part of the floating body 1 is rectangular, and it contracts inwardly from the middle to the front end to form an outer arc 13. Viewed from the front of the buoyant body 1 (as shown in FIG. 4), the inner side 14 of the two buoyant bodies 1 is a vertical plane, the outer upper part is a straight edge 15, and the middle and lower parts are contracted inward to the bottom to form an inner arc 16. From the middle of the floating body, the connection point of the inner arc 16 and the straight edge 15 is forward from it Raise it up gradually until it reaches the apex 17 at the foremost end of the hull. Viewed from the back of the floating body 1 (as shown in FIG. 5), the inner side is also a vertical plane 14, the upper outer side is a straight edge 15, the middle and lower parts contract inward to form an inner arc 16, and from the middle of the floating body 1, The connection point between the inner arc 16 and the straight edge gradually increases from the back to the back.

It can be seen from the above description of the shape of the buoyant body 1 that the design of the buoyant body shape of the present invention is a full ship application using a swallow hull, which has never been used in the prior art.

In the above embodiment, the radian change of each point in the floating body 1 can be seen from the corresponding positions of the section numbers 0 ^{# to} 13 ^# marked in FIG. 2, FIG. 3, and FIG. 4.

In the above embodiment, a slide rail 18 (as shown in FIG. 2) may be provided on the horizontal bar 3 in the middle of the hull, and a connection member 19 that can be slid and fixed thereon is provided on the slide rail 18. The movable end of 8 is fixed on the connecting member 19. During driving, the movable end of the rope 8 can be fixed at any position on the slide rail 18 through the connecting member 19 according to the change of wind direction to ensure that the sail always maintains the best sail shape effect during the sailing process.

In the above embodiment, a driving hook 20 may be installed on the horizontal link 4 near the stern of the hull, so that when there is no wind, the driving hook 20 is driven forward.

In the above embodiment, two sails 5 having the same shape on both sides of the mast 6 (as shown in FIG. 6) may be provided. Generally, when sailing, the two sails 5 are stacked together and used as one sail 5. At this time, the two sails 5 can be dozed horizontally, so that the two sails 5 receive the same force from the stern wind at the left and right sides of the mast 2 at the same time, so that the hull is always kept in a stable and balanced state. The area has increased, and the speed of downwind driving has increased significantly.

Industrial applications

The utility model adopts the above design and has the following advantages: 1. Since the inside of the two oppositely arranged floating bodies is set as a vertical plane, the utility model can replace the steady plate and effectively prevent the ship from laterally moving and overturning. 2. Since the arcuate surfaces of the two floating bodies are arranged from the back to the front, from the bottom to the top, and from the outside to the inside, the utility model can compress the pressure along the arc partial pressure. Under the same load, Not only the water separation is good, but also the stability and wave resistance are significantly better than the various ship types of the prior art. 3. Since the upper and rear sides of the floating body are set as straight edges and the outer side of the floating body is set as a circular arc, the utility model can not only ensure better buoyancy but also more flexible turning performance. 4. Since the present invention is provided with a slide rail on the horizontal bar in the middle of the hull, the movable end of the rope can be fixed at any position on the slide rail through the sliding member, so that the sail can always be changed according to the change of the wind direction. Maintain the best sail shape. 5. The utility model is provided with sails with the same shape on both sides of the mast, so the sails can be stacked and used as one sail at normal time, which will not cause the hull to be cumbersome. When the wind is down, the sails on both sides can be opened laterally in a butterfly shape. The two sails are subjected to the force of the stern wind at the left and right sides of the mast at the same time, so that the hull always maintains a stable and balanced state, avoiding problems such as affecting the hull's sailing speed due to the hull tilt. 6. The utility model is provided with sails with exactly the same shape on both sides of the mast. Compared with one sail in the prior art, the force-bearing area of the sail is doubled. Under the same wind condition, the sailing capacity of the sailing vessel can be greatly improved. Forward speed. 7. Since the utility model is provided with a slide rail on the horizontal bar in the middle of the hull, the movable end of the rope can be connected to the slide rail through a connecting member, so that the sail always maintains the best sailing effect.

Claims

Rights request

1. A catamaran sailing boat comprising two elongated floating bodies and a plurality of horizontal linkages connected to the same, wherein a surface layer is connected between the horizontal linkages, and a sail is mounted on the horizontal linkages at the front of the hull through a mast. On the downsail of the sail, there is a lanyard, and a stern is equipped with a steering rudder, which is characterized in that, viewed from the side of the floating body, its top surface is arced forward and back flat, and the bottom surface is forward high, middle low, Backward-looking arc shape; viewed from the top surface of the floating body, its rear portion is rectangular, contracting inwardly from the middle to the foremost to form an outer arc; viewed from the front of the floating body, its inner side is a vertical plane, and its outer side The upper part is ¾: the edge, the middle and lower parts shrink inwardly to form an inner arc, and from the middle of the floating body, the connection point of the inner arc and the straight edge gradually rises upward from the front until it reaches the most of the hull The apex of the front end; viewed from the back of the floating body, the inner side is also a vertical plane, the upper outer side is a straight edge, the middle and lower parts shrink inward to form an inner arc, and from the middle of the floating body, the inner arc and The straight edge connection From back gradually increase upward.

2. The catamaran according to claim 1, characterized in that: a slide rail is provided on the horizontal bar near the middle of the hull, and the movable end of the rope is connected to the slide rail by a connecting member. on.

3. The catamaran according to claim 1, characterized in that: the mast is provided with sails having the same shape on both sides.

The catamaran according to claim 2, characterized in that: sails having the same shape on both sides are provided on the mast.

5. The catamaran according to claim 1 or 2 or 3 or 4, characterized in that: a driving hook is provided on the horizontal bar at the rear of the hull.