JPS596189A - Small sailing catamaran - Google Patents

Abstract

PURPOSE:To easily remove beams at disassembly from floats molded with each bag body, which holds a shape by filling air, by mounting the beam to holding members on the float through a recessed and protrusive fitting part to surely perform mounting while evacuating air in the bag body. CONSTITUTION:A pair of floats 1 are connected to each other by beams 2, 3 longitudinally in two places, while the beams 2, 3 are mutually connected by a connection member, and a mast of a sail is supported to the beams 2, 3 or on the connection member, thus a small sailing catamaran is constituted. Each float 1 is constituted by a bag body holding its shape by filling air, and the beams 2, 3 are extended through penetrative holes 80 of holding members 8 provided onto the float 1 while connected through a recessed protrusive fitting part formed by a pin 70 of a supporting member 7 on the float 1. At assembly, the beams 2, 3 are surely mounted to the float by engagement between the recessed and protrusive parts, while at disassembly, the beams 2, 3 can be easily disconnected by evacuating air in the bag body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to improvements in small sailing catamarans.

Conventionally, small sailing catamarans have a pair of hulls connected to each other by a beam, and because the beams are attached completely fixed to the hull, they cannot be easily disassembled, so they are stored in a sailboat. There is a problem with getting nervous when doing so. It has also been proposed that the beam and the hull can be disassembled, but even in this case, the hull itself does not change in size, so there is a limit to how much the volume can be reduced. This was done to solve these conventional problems, and it made it possible to reduce the size of the hull itself, making it extremely convenient for transport and storage, and also making it easy to attach and detach the beam and hull. It was designed so that That is, in this invention, a pair of hulls are connected to each other by beams at two locations, front and rear.

and the beams are connected to each other by a connecting member, and each hull is constituted by a shape-retaining bag filled with air, and the mast of the sail is supported on the beam or its connecting member, and the beam is attached to the hull. It penetrates the provided holding member, and is connected by fitting the uneven fitting portions provided on the beam and the shape-retaining member to each other, and is configured such that the fitting is released by removing air from the hull. It is.

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a pair of hulls 1 have front and rear beams 2. The beams 2 and 6 are connected to each other by a connecting member 4 between their central portions, and the lower end of a mast 6 of a sail 5 is connected and supported on this connecting member 4. The hull 1 is formed into a bag made of rubber plastic or other waterproof cloth material, and its shape is maintained by filling the inside with air. Tongue piece 9 on hull 1
A rope 90 is connected between this and the upper part of the mast O to prevent the mast O from falling.

The tongue piece 9 is also attached to the center of the beam 2. A canvas 11 is still placed between the hulls 1, and its peripheral edge is connected to the hull 1, beams 2, 6, and connecting portion 4 by appropriate means. Further, the hull 1 is provided with a center board 10 projecting downward.

Note that in the drawing, the campus 11 is shown partially cut away.

The joints between the beams 2 and 6 and the hull 1 are constructed as shown in FIGS. 2 and 6. That is, a support base 7 made of rubber or the like is attached to the hull 1 by means of adhesive or the like, and its upper surface is formed into a curved surface that fits over the outer peripheral surfaces of the beams 2 and 6, and a protrusion 70 is formed thereon. Locking pieces 8 are attached to both sides, and a beam through hole 80 is formed therein. Then, the beam 2.6 is passed through the hole 80, and the hole 7 is brought into contact with the upper surface of the support base 7, and the protrusion 70 is formed in the beam 2.6.
Insert it into 1.

In this joint structure, when the air of one width of the hull is let out, the support base 7 descends and the protrusion 70 comes out of the hole in the beams 2 and 6, as shown in FIG. It can be separated from the hull 1 by moving it. Furthermore, when the hull 1 is filled with air from the state shown in FIG. It is pressed against the beam 2.6 and thus remains firmly connected during use. Note that the beams 2 and 6 are connected to the connecting member 4.
It is removably inserted into a sleeve 40 fixed to both ends of the sleeve.

As the holding member for connecting the beams 2 and 3 to the hull 1, in addition to the structure consisting of the support stand 7 and the locking piece 8 as described above, a structure as shown in FIGS. 5 and 6 can also be adopted. That is, a belt-shaped locking piece 86 made of cloth or the like is attached to the hull 1 by gluing its front and rear edges, and the ends of the beams 2 and 6 are inserted between this and the hull 1, and the beam 2 , 6 are fitted into the holes 81 of the locking pieces 86. Even in this configuration, the projection 20 and the hole 81 are unfitted by removing the air from the hull 1, and by still filling air, the hull can press the beams 2 and 6 against the locking piece 86, thereby allowing the hull to be closed. The fitted state between the protrusion 20 and the hole 81 is maintained.

In the above configuration, each member is connected to each other during use, and both hulls 1 are connected to each other by the beams 2, 6 and the connecting portion 4.
1 to maintain the configuration shown in FIG.

When not in use, each component can be separated into independent components, and the hull 1 can be folded into a compact size by letting the air out of the bag. can be configured. Furthermore, the connection between the hull 1 and the beams 2 and 6 is removed by letting the air out of the hull 1, and the connection is maintained by filling with air, making it easy to disassemble and reassemble, and a reliable connection can be achieved. It is something that

As explained above, the present invention provides a sailing catamaran in which a pair of hulls are connected by a beam, in which each hull is made up of a bag body so that it can be folded, and the beam and the hull can be easily and securely connected. It is very convenient for transportation, storage and handling.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an assembled state showing an embodiment of the present invention, Fig. 2 is a perspective view of the beam joint part of the hull, Fig. 5 is a cross-sectional view thereof, and Fig. 4 shows the process of connection and separation. FIG. 5 is a perspective view showing another example of the beam coupling portion, and FIG. 6 is a sectional view thereof. 1... Hull, 2, 3... Beam, 4 Connecting member, 7...
- Support body, 8, 86...Locking piece, 20.70...Protrusion.

Claims (1)

[Claims] 1. A pair of hulls are connected to each other by beams at two points in the front and back, and the beams are connected to each other by a connecting member. Each hull is composed of a bag filled with air to maintain its shape. The mast of the sail is supported on the connecting member, the beam passes through a holding member provided on the hull, and is coupled by fitting portions of concave and convex portions provided on the beam and the holding member into each other, and A small sailing catamaran characterized in that the above-mentioned fitting is disengaged by letting air out of the hull.