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Double-layer boat hull structure

Inactive Publication Date: 2009-05-07
CHIEN CHIH HSIUNG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]The present invention has been accomplished under the circumstances in view. It is one object of the present invention to provide a double-layer boat hull structure, which comprises an inner layer, an outer layer, and a plurality of independent air chambers defined between the inner layer and the outer layer to enhance the structural strength and floatability of the boat.
[0006]It is another object of the present invention to provide a double-layer boat hull structure, which comprises an outer layer formed of a plurality of longitudinally extending outer plates, an inner layer formed of a plurality of longitudinally extending inner plates, and a plurality of spacer plates connected between the outer plates and the inner plates to keep the outer layer and the inner layer in parallel. This double-layer design eliminates the complicated conventional main beam (keel) and sub-beam structural design, and provides a high strength.
[0007]It is still another object of the present invention to provide a double-layer boat hull structure, which is practical for constructing a high-strength impact-resistant single hull raft having an inner layer and an outer layer

Problems solved by technology

Because this single hull structure is of a single-layer design, a small broken part or water leakage in the seam between two members will affect the floatability of the boat and may cause the boat to turn over and sink.
However, this design of plastic raft is not durable in use because the ropes and the plastic tubes may break easily.

Method used

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Embodiment Construction

[0018]Referring to the annexed drawings in detail, a boat hull structure in accordance with the present invention is shown comprising a bow section 10, a draft section 20, a stern section 30, and amidships section 40, and formed of rigid outer plates 1, inner plates 2 and spacer plates 3. The bow section 10 extends archly from the center of the front side of the boat hull structure to the starboard (right side) and port (left sided) of the amidships section 40 so that the front side of the boat hull structure is sharp. The draft section 20 can be made having a double-bevel bottom side (see FIG. 1) or flat bottom side (see FIG. 8). The stern section 30 has a flat structure for the mounting of an attached power engine or motor. The amidships section 40 extends vertically upwards or obliquely upwards from two opposite lateral sides of the draft section 20. The space surrounded by draft section 20 and the amidships section 40 is the bilge 50 for carrying fishes and people.

[0019]The rigi...

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Abstract

A boat hull structure includes an inner layer formed of multiple inner plates each having two mounting flanges at two sides, an outer layer formed of multiple outer plates each having two mounting flanges at two sides, multiple spacer plates connected between the mounting flanges of each two adjacent inner plates and the mounting flanges of each two adjacent outer plates to keep the inner layer and the outer layer in parallel and to define a plurality of independent air chambers between the inner layer and the outer layer, and fastening members affixing the spacer plates to the outer plates and the inner plates.

Description

BACKGROUND OF THE INVENTION[0001](a) Field of the Invention[0002]The present invention relates to a boat and more particularly, to a double-layer boat hull structure for navigation on water.[0003](b) Description of the Prior Art[0004]Regular boats for use as a transportation vehicle on a lake, river, or seashore area commonly have a single hull structure made of wood or composite material. Because this single hull structure is of a single-layer design, a small broken part or water leakage in the seam between two members will affect the floatability of the boat and may cause the boat to turn over and sink. Further, plastic rafts are commonly used in the inshore fishery, water fishery or culture ponds as vehicles for delivery things. A regular plastic raft is made of plastic tubes that are arranged in parallel and tied tightly together with ropes. However, this design of plastic raft is not durable in use because the ropes and the plastic tubes may break easily.SUMMARY OF THE INVENTIO...

Claims

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Application Information

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IPC IPC(8): B63B3/20B63B3/00
CPCB63B3/20B63B3/08
Inventor CHIEN, CHIH-HSIUNG
Owner CHIEN CHIH HSIUNG