GB2146589A

GB2146589A - Marine craft with hull comprising parallel pipes

Info

Publication number: GB2146589A
Application number: GB08323541A
Authority: GB
Inventors: Yeh Hsiang
Original assignee: TITAN PLASTICS IND Pte Ltd
Current assignee: TITAN PLASTICS IND Pte Ltd
Priority date: 1983-09-02
Filing date: 1983-09-02
Publication date: 1985-04-24
Also published as: GB8323541D0; GB2146589B

Abstract

The craft has a hull (10) comprising a plurality of elongate air-tight PVC pipes (12, 14, 16, 18, 20, 22, 24, 26 and 28) arranged in side-by-side relationship and fixedly connected to a plurality of transversely extending members (30,32, 34, 36, 38, 40, 42, 44 and 46). The forward and rearward ends of the pipes are inclined upwardly to form the bow and stern of the craft. The transverse members are arcuate. The centre pipes are shortened at the rear end, a rubber being located in the ensuing space. <IMAGE>

Description

SPECIFICATION An improved marine craft The present invention relates to marine craft and particularly to the hull thereof.

The object of the present invention is to provide a marine craft which is extremely simple in construction, stable in use and inexpensive to produce.

The present invention consists in a marine craft having a hull comprising a plurality of elongate air-tight tubular members formed of plastics material and arranged in side-by-side relationship, at least some of the forward and rearward ends of the tubular members being upwardly inclined to form, respectively, the bow and stern of the craft.

In the accompanying drawings: Figure lisa plan view of the hull of a marine craft according to the present invention, Figure2 is a cross-section taken along the line 2-2 of Figure 1, Figure 3 is a cross-section taken along the line 3-3 of Figure 1, Figure 4 is a cross-sectional detail showing the method of assembly of the hull, Figure 5 is a side-elevational detail of the rudder mounting assembly, and Figure 6 is a cross-section taken along the line 6-6 of Figure 5.

In carrying the invention into effect according to one convenient mode, by way of example, the marine craft has a hull 10 comprising a plurality of elongate PVC tubular members or pipes 12, 14, 16, 18, 22, 24, 26 and 28 joined together in side-by-side relationship by a plurality of transversely extending, curved wooden members 30,32, 34,36, 38,40,42,44 and 46 as hereinafter described.

The outermost pipes 12 and 28 are of larger diameter than the other pipes and both ends of all the pipes are sealed by closure members 48 to render then air-tight. The forward end of all the pipes are curved upwardly to form the bow of the craft, whilst the rearward end of the three outer pipes 12, 14,16 and 24,26,28, respectively, at the sides of the craft are also curved upwardly, to a lesser degree, to form the stern of the craft.

Longitudinally extending wooden members 50 are positioned, respectively, along each side of the craft and the ends of all the transverse members are connected thereto. The transverse members 32,34, 36 and 38 are also interconnected by shorter longitudinally extending wooden members 52, whilst the transverse members 34,36 and 38 are further interconnected by short longitudinally extending members 54. It will be readily appreciated that the longitudinal members 52 and 54, or similar members may extend substantially the whole length of the craft.

As clearly shown in Figure 3,the hull is of generally arcuate configuration in cross-section and the pipes are fixedly connected to the transverse members by flexible metal straps 56 which pass around the pipes. The ends of each strap is apertured to receive the angled end 58 of a fastening bolt, the threaded shank 62 of which is passed through a transverse member (for example 40) as shown in Figure 4 and connected thereto by a nut 64 and lock unit 66. Deck cladding 68 covers the pipes and their mountings to the transversely extending members.

A transversely extending, upstanding rudder mounting board 70 is fixedly mounted on the ends of the members 52 by means of threaded bolts 72. As shown in Figures 5 and 6, a metal plate 74 having a boss 76 is secured to the board 70 by threaded bolts 78. A shaft 80 extends through, and is rotatably mounted in, the boss 76. One end of the shaft 80 is provided with a tapered hollow member 82 to receive a tiller 84, whilst a rudder 86 is fixedly mounted on the other end of the shaft 80. A collar 88 is releasably connected to the shaft 80 by a hand screw 90 which allows the height of the tiller 84 to be readily adjusted.

A power unit (not shown) is provided in an engine room 92 and the craft is driven in a conventional manner.

1. A marine craft having a hull comprising a plurality of elongate, air-tight tubular members formed of plastics material and arranged in side-byside relationship, at least some of the forward and rearward ends of the tubular members being upwardly inclined to form, respectively, the bow and stern of the craft.

2. A marine craft as claimed in claim 1, wherein all of the forward ends of the tubular members are upwardly inclined to form the bow.

3. A marine craft as claimed in claim 1 or 2, wherein the rearward ends of certain centrally disposed tubular members are shorter than the remaining outer tubular members.

4. A marine craft as claimed in any of claims 1 to 3, wherein the hull is of generally arcuate configuration in cross-section.

5. A marine craft as claimed in any of claims 1 to 4, wherein the tubular members are interconnected by a plurality of transversely extending members, a plurality of fixing straps passing around the tubular members and being fixedly anchored to the transversely extending members.

6. A marine craft as claimed in claim 4 or 5 in their appendancy to claim 3, wherein a rudder assembly is positioned centrally of the hull adjacent the stern thereof in the space provided by the shorter tubular members.

7. A marine craft substantially as described with reference to, and as illustrated in, the accompanying drawings.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION An improved marine craft The present invention relates to marine craft and particularly to the hull thereof. The object of the present invention is to provide a marine craft which is extremely simple in construction, stable in use and inexpensive to produce. The present invention consists in a marine craft having a hull comprising a plurality of elongate air-tight tubular members formed of plastics material and arranged in side-by-side relationship, at least some of the forward and rearward ends of the tubular members being upwardly inclined to form, respectively, the bow and stern of the craft. In the accompanying drawings: Figure lisa plan view of the hull of a marine craft according to the present invention, Figure2 is a cross-section taken along the line 2-2 of Figure 1, Figure 3 is a cross-section taken along the line 3-3 of Figure 1, Figure 4 is a cross-sectional detail showing the method of assembly of the hull, Figure 5 is a side-elevational detail of the rudder mounting assembly, and Figure 6 is a cross-section taken along the line 6-6 of Figure 5. In carrying the invention into effect according to one convenient mode, by way of example, the marine craft has a hull 10 comprising a plurality of elongate PVC tubular members or pipes 12, 14, 16, 18, 22, 24, 26 and 28 joined together in side-by-side relationship by a plurality of transversely extending, curved wooden members 30,32, 34,36, 38,40,42,44 and 46 as hereinafter described. The outermost pipes 12 and 28 are of larger diameter than the other pipes and both ends of all the pipes are sealed by closure members 48 to render then air-tight. The forward end of all the pipes are curved upwardly to form the bow of the craft, whilst the rearward end of the three outer pipes 12, 14,16 and 24,26,28, respectively, at the sides of the craft are also curved upwardly, to a lesser degree, to form the stern of the craft. Longitudinally extending wooden members 50 are positioned, respectively, along each side of the craft and the ends of all the transverse members are connected thereto. The transverse members 32,34, 36 and 38 are also interconnected by shorter longitudinally extending wooden members 52, whilst the transverse members 34,36 and 38 are further interconnected by short longitudinally extending members 54. It will be readily appreciated that the longitudinal members 52 and 54, or similar members may extend substantially the whole length of the craft. As clearly shown in Figure 3,the hull is of generally arcuate configuration in cross-section and the pipes are fixedly connected to the transverse members by flexible metal straps 56 which pass around the pipes. The ends of each strap is apertured to receive the angled end 58 of a fastening bolt, the threaded shank 62 of which is passed through a transverse member (for example 40) as shown in Figure 4 and connected thereto by a nut 64 and lock unit 66. Deck cladding 68 covers the pipes and their mountings to the transversely extending members. A transversely extending, upstanding rudder mounting board 70 is fixedly mounted on the ends of the members 52 by means of threaded bolts 72. As shown in Figures 5 and 6, a metal plate 74 having a boss 76 is secured to the board 70 by threaded bolts 78. A shaft 80 extends through, and is rotatably mounted in, the boss 76. One end of the shaft 80 is provided with a tapered hollow member 82 to receive a tiller 84, whilst a rudder 86 is fixedly mounted on the other end of the shaft 80. A collar 88 is releasably connected to the shaft 80 by a hand screw 90 which allows the height of the tiller 84 to be readily adjusted. A power unit (not shown) is provided in an engine room 92 and the craft is driven in a conventional manner. CLAIMS