WO1988006115A1 - Multi-convertible boat hull - Google Patents

Multi-convertible boat hull Download PDF

Info

Publication number
WO1988006115A1
WO1988006115A1 PCT/AU1988/000039 AU8800039W WO8806115A1 WO 1988006115 A1 WO1988006115 A1 WO 1988006115A1 AU 8800039 W AU8800039 W AU 8800039W WO 8806115 A1 WO8806115 A1 WO 8806115A1
Authority
WO
WIPO (PCT)
Prior art keywords
boat
hull
mode
boat hull
power
Prior art date
Application number
PCT/AU1988/000039
Other languages
French (fr)
Inventor
Raymond Richards
Original Assignee
Carib Dory (Aust.) Pty Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carib Dory (Aust.) Pty Limited filed Critical Carib Dory (Aust.) Pty Limited
Publication of WO1988006115A1 publication Critical patent/WO1988006115A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/02—Hulls assembled from prefabricated sub-units
    • B63B3/08—Hulls assembled from prefabricated sub-units with detachably-connected sub-units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B7/00—Collapsible, foldable, inflatable or like vessels
    • B63B7/02—Collapsible, foldable, inflatable or like vessels comprising only rigid parts

Definitions

  • the invention is described in the following statement
  • the invention is of an easi ly convertible boat hull and its sets of conversion fittings , and novelty is claimed both as to boat and fitting features and to method of boat manu facture insofar as the adaptation of one bo a t from anothe r involves manufacture'.
  • the kinds of small boats to which the single hull converts are: a rowing boat; a sail boat; and a motor boat. Conversion is by adding or subtracting the fittings (as shown in the plans) using the depicted identical hand screws preferably of plastic-type material, let into strategically placed threaded sockets in the hull. Unlike the conventional fitting-out of boat hulls ready for use, no tools are required and the operation is exceptionally fast and straightforward.
  • Positional modifications for any of the fittings can be achieved simply by redrilling, and relocating the screw sockets within the hull.
  • Each hull is manufactured conventionally, for example of hollow-walled fibreglass partially filled with flotation 'foam'.
  • the plans show hulls of two sizes, one suitable for a mainsail only in the sailing mode
  • the contours compatibly augment (in the sailboat mode) the daggerboards or releasable fins which are placed at the sides of the hull, amidships.
  • the vertical slots which receive them are covered (when in the non-sail modes) by plates (of plastic or other material) affixed by the universal hand screw.
  • the cuddy shown in the plans is especially appropriate for the power mode.
  • the drawing numbered F 4 shows how the screw sockets are held in the deck by shhoulders'. Rotation moulding in polyethylene is the best known hull construction.

Abstract

A boat hull which converts (by means of hand-operated screws to attach or detach component parts) between a power boat mode, a sailing boat mode, and a rowing boat mode. Contouring of a boat's underhull with ridges (fledges and straking and channelling) being efficient for operation of the boat whether under motor power, sail, or oars and providing ''surface effect'' lift of the hull when at speed.

Description

COMPLETE SPECIFICATION FOR THE INVENTION ENTITLED MULTI-CONVERTIBLE SMALL BOAT HULL
The invention is described in the following statement The invention is of an easi ly convertible boat hull and its sets of conversion fittings , and novelty is claimed both as to boat and fitting features and to method of boat manu facture insofar as the adaptation of one bo a t from anothe r involves manufacture'. The kinds of small boats to which the single hull converts are: a rowing boat; a sail boat; and a motor boat. Conversion is by adding or subtracting the fittings (as shown in the plans) using the depicted identical hand screws preferably of plastic-type material, let into strategically placed threaded sockets in the hull. Unlike the conventional fitting-out of boat hulls ready for use, no tools are required and the operation is exceptionally fast and straightforward. Positional modifications for any of the fittings (seats, cuddy, console etc.) can be achieved simply by redrilling, and relocating the screw sockets within the hull. Each hull is manufactured conventionally, for example of hollow-walled fibreglass partially filled with flotation 'foam'. The plans show hulls of two sizes, one suitable for a mainsail only in the sailing mode
(say 10m2) and a relatively small, engine in the powered mode, say 20 h.p. (plan 1); the other larger size is appropriate for mainsail-and-jib (say 13m2 total) and an engine of say 40 h.p. (plan2). Uniqueness also resides in the dual-function of the under-hull contouring including the ridges or 'fledges' shown in the diagram which, according to the mode in use, provide a channel or'tunnel-effect' (augmenting lift from the water); an aquaplane effect; a stabilising effect; and an effect of countering lateral drift. The contours compatibly augment (in the sailboat mode) the daggerboards or releasable fins which are placed at the sides of the hull, amidships. The vertical slots which receive them are covered (when in the non-sail modes) by plates (of plastic or other material) affixed by the universal hand screw.
The cuddy shown in the plans is especially appropriate for the power mode.
Two screws only, one at each end, are required to instal the seats. Two screws are desirable.also for the steering console for the power mode, as the drawings show. The mounting and affixation of parts of the boats is, other than as shown, conventional; e.g. rowlocks, and outboard motors.
The drawing numbered F4shows how the screw sockets are held in the deck by shhoulders'. Rotation moulding in polyethylene is the best known hull construction.

Claims

COMPLETE SPECIFICATION FOR INVENTION
MULTI CONVERTIBLE BOAT HULL
CLAIMS :
A boat hull which converts (by means of hand-operated screws to attach or detach component parts) between a power boat mode, a sailing boat mode, and a rowing boat mode.
Contouring of a boat's underhull with ridges (fledges and straking and channelling) being efficient for operation of the boat whether under motor power, sail, or oars and providing 'surface effect' lift of the hull when at speed.
PCT/AU1988/000039 1987-02-12 1988-02-12 Multi-convertible boat hull WO1988006115A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU31187 1987-02-12
AUPI0311 1987-02-12

Publications (1)

Publication Number Publication Date
WO1988006115A1 true WO1988006115A1 (en) 1988-08-25

Family

ID=3691125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1988/000039 WO1988006115A1 (en) 1987-02-12 1988-02-12 Multi-convertible boat hull

Country Status (1)

Country Link
WO (1) WO1988006115A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699139A1 (en) * 1992-12-14 1994-06-17 Piot Daniel Variable-width deck, e.g. for sail-boards - has side strips attached by tongue-and-groove joints with through bolts
WO2018212667A1 (en) * 2017-05-19 2018-11-22 Matthew Keith Mason Improvements in or relating to boat hulls or boat hull components

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB322054A (en) * 1928-10-20 1929-11-28 David Sutherland Badenoch A new or improved means for connecting channel members and other members of curved section
US3129443A (en) * 1960-01-12 1964-04-21 Maturi Rodolphe Gerard Convertible boat hull
US3140686A (en) * 1960-04-11 1964-07-14 Olivotti Elia Hull of special stabilized shape
AU2524262A (en) * 1962-12-10 1965-06-10 Edward Forster Huybers Improvements in and relating to boats and boat hulls
AU4019568A (en) * 1969-07-04 1971-01-07 Frederick Carroll William Boat hull
US3704473A (en) * 1971-01-11 1972-12-05 Donald W Sessions Hulls in water craft
US3744071A (en) * 1971-03-24 1973-07-10 Kaman Aerospace Corp Sectional boat construction
US3877095A (en) * 1973-11-12 1975-04-15 Jessie T Ivy Expandable boat
AU5116785A (en) * 1984-12-13 1986-06-19 Oy Kinetik Ltd Bottom structure of a boat

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB322054A (en) * 1928-10-20 1929-11-28 David Sutherland Badenoch A new or improved means for connecting channel members and other members of curved section
US3129443A (en) * 1960-01-12 1964-04-21 Maturi Rodolphe Gerard Convertible boat hull
US3140686A (en) * 1960-04-11 1964-07-14 Olivotti Elia Hull of special stabilized shape
AU2524262A (en) * 1962-12-10 1965-06-10 Edward Forster Huybers Improvements in and relating to boats and boat hulls
AU1824367A (en) * 1966-05-02 1968-08-29 Chrysler Corporation Boat hull
AU4019568A (en) * 1969-07-04 1971-01-07 Frederick Carroll William Boat hull
US3704473A (en) * 1971-01-11 1972-12-05 Donald W Sessions Hulls in water craft
US3744071A (en) * 1971-03-24 1973-07-10 Kaman Aerospace Corp Sectional boat construction
US3877095A (en) * 1973-11-12 1975-04-15 Jessie T Ivy Expandable boat
AU5116785A (en) * 1984-12-13 1986-06-19 Oy Kinetik Ltd Bottom structure of a boat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699139A1 (en) * 1992-12-14 1994-06-17 Piot Daniel Variable-width deck, e.g. for sail-boards - has side strips attached by tongue-and-groove joints with through bolts
WO2018212667A1 (en) * 2017-05-19 2018-11-22 Matthew Keith Mason Improvements in or relating to boat hulls or boat hull components

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