Take apart water craft

a watercraft and take-away technology, applied in the field of watercraft, can solve the problems of deteriorating bolt holes, high stress and failure of bolts, and time-consuming bolt assembly operation, and achieve the effect of simple moulding and easy assembly

Inactive Publication Date: 2010-02-04
GRIFFIN OWEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]It is therefore an object of the present invention to provide a take apart design which is simple to mould, robust and easy to assemble, or at least provides a useful alternative to the prior art devices.STATEMENT OF THE INVENTION
[0014]Preferably the sections of the water craft have a floor which prevents the entry of water from above to below the waterline of the craft.

Problems solved by technology

However the bolting together operation takes time and the bolts are subjected to high stress and failure due to repeated fastening and unfastening.
Further the bolt holes deteriorate and sealing between bolted bulkheads often fails and allows water to enter the craft.
Although this design represents an improvement in sealing and locking demountable sections, it is complicated to mould and is still difficult to assemble.

Method used

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  • Take apart water craft
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Examples

Experimental program
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Effect test

Embodiment Construction

[0023]FIG. 1 shows interfacing bulkheads 1, 2 of a three section kayak. Bulkheads 1 have inward tapering ridges while opposing bulkheads 2 have outward tapering ridges. Accordingly when the sections are brought together the tapered ridges first align mating bulkheads 1, 2 which then fit securely into one another eliminating movement between bulkheads 1,2 in both vertical and lateral directions.

[0024]Tensioning strap 3 is used to draw the three sections together and to apply a compressive force which locks them in sealing engagement. Strap 3 has hooks 5 at each end which engage brackets 4 molded into the bow and stern of the kayak. Ratchet 6, accessed through hatch 7, is used to tension strap 3 so that the compressive force between the bulkheads is greater than the separating forces in the water.

[0025]Tensioning strap 3 passes through holes 8, 10 in bulkheads 1, 2 which are above the normal waterline. Accordingly even if there is some parting of bulkheads 1, 2 and water enters the sp...

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PUM

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Abstract

A water craft comprises two or more sections with mating bulkheads and a tensioning device extending from bow to stem and passing through said bulkheads such that the tensioning device holds the sections together for use on the water. The mating bulkheads have inwardly and outwardly tapering ridges which guide the bulkheads into locking engagement as the tensioning device draws the sections together. The tensioning device is a strap which is attached internally to the bow and stem of the craft and is tensioned by a ratchet.

Description

FIELD OF THE INVENTION[0001]This invention relates to watercraft which can be taken apart to facilitate transport out of the water.BACKGROUND OF THE INVENTION[0002]It is well known to design rowing shells, kayaks, tender boats and other watercraft so that they can be disassembled into a number of sections which make them easier to transport. The age old technique for achieving this is to provide each demountable section with reinforced bulkheads which are bolted together in order for the craft to be assembled for use on the water.[0003]However the bolting together operation takes time and the bolts are subjected to high stress and failure due to repeated fastening and unfastening. Further the bolt holes deteriorate and sealing between bolted bulkheads often fails and allows water to enter the craft.[0004]There have been numerous attempts to overcome these problems by providing sealing interfaces between demountable sections and by simplified locking mechanisms. A number of these des...

Claims

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Application Information

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IPC IPC(8): B63B7/04B63B35/71
CPCB63B3/08B63B35/71B63B7/04B63B34/23
Inventor GRIFFIN, OWEN
Owner GRIFFIN OWEN
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