US3090975A - Amphibious caravan - Google Patents

Amphibious caravan Download PDF

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US3090975A
US3090975A US154781A US15478161A US3090975A US 3090975 A US3090975 A US 3090975A US 154781 A US154781 A US 154781A US 15478161 A US15478161 A US 15478161A US 3090975 A US3090975 A US 3090975A
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caravan
pontoons
figures
buoyancy units
amphibious
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US154781A
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Franks Alfred Bernard
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
    • B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
    • B60F3/0061—Amphibious vehicles specially adapted for particular purposes or of a particular type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/06—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles
    • B60P3/10—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles for carrying boats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/32—Vehicles adapted to transport, to carry or to comprise special loads or objects comprising living accommodation for people, e.g. caravans, camping, or like vehicles

Definitions

  • This invention has been devised to provide an amphibious caravan mounted on wheels and having buoyancy units connected thereto by means which enable the buoyancy units to be supported on top of the caravan for road transport and which enable the buoyancy units to be moved to a position to support the caravan on water.
  • FIGURES 1 and 2 are perspective views of the caravan with the buoyancy units supported on the top of a caravan and in caravan floating support position respectively;
  • FIGURES 3 and 4 are side elevations of the caravan with the buoyancy units in the positions shown in FIG- URES 1 and 2 respectively;
  • FIGURE 5 is an end elevation of the caravan with the buoyancy units in the position shown in FIGURES 2 and 4;
  • FIGURES 6 and 7 are fragmentary perspective views of one of the devices which are used to hold the buoyancy units in the positions shown in FIGURES 1 and 2.
  • the buoyancy units 1 are two flat-topped pontoons with a out water nose 2.
  • the pontoons are made of a shell of marine plywood or resin bonded fibre glass which is filled with a foamed or expanded synthetic resin (i.e. polyurethane). They are so much longer than a caravan as is necessary to support a decking 3, 4 at each end respectively.
  • Catches 5 hold the decking in place on the pontoons when the pontoons are in caravan supporting position.
  • the catches 5 achieve an interlock of the decking 3-4 with the pontoons 1 thus forming a catamaran-like structure.
  • the decking 4 is constructed to support an outboard motor which is indicated by the reference 6.
  • Two tubular posts 7 having foot plates 8 are mounted on the top of each pontoon adjacent the longitudinal edge next to the caravan. Braces may be incorporated to make the post-pontoon assembly rigid.
  • Two clevis brackets 9 are fixed to each side wall 9a of the caravan 10 at mid-heighth; they are located to hold the pontoons in a selected position relative to the caravan, and to permit the pontoons to be moved from a stowage position on top of the caravan to a caravan water borne position as illustrated in the drawings.
  • a hinge pin 11 in the top of each post 7 supports the pontoons in the clevis brackets.
  • Brackets 12 and 13 are also fixed to each side wall 9a; one pair adjacent the top thereof and the other pair adjacent the bottom and in alignment with the respective clevis brackets 9.
  • These brackets 12, 13 (FIGURES 6-7) are made of plate which is shaped to provide wedge slots 14.
  • a clamp plate 15 shaped to embrace a tubular post 7 has wedge ends 16 made to fit in the wedge slots 14 and a handle 17 whereby it can be moved into and out of post holding position.
  • Means, such as locking pins, may be provided to secure the clamp plate in post holding position.
  • An amphibious caravan comprising, in combination, a caravan body including a floor, side, and end walls, and a roof, wheels beneath the floor, a pair of spaced posts having their inner ends pivotally connected substantially to the horizontal median line of said opposite side walls, and a pair of pontoons each having a top wall connected medially to the outer ends of each pair of related posts, whereby, when the pontoons are elevated the outer edge portions of the top walls thereof overlie and rest on the side portions of the top wall of the caravan body, and, when the pontoons are lowered the inner edge portions of the top walls thereof underlie the floor of said caravan body to support the latter above the surface of the Water.

Description

May 28, 1963 A. B. FRANKS AMPHIBIOUS CARAVAN 2 Sheets-Sheet 1 Filed Nov. 24, 1961 /v /ENTOR I4LF/EED B. FRA/VKS May 28, 1963 Filed Nov. 24, 1961 BY w/ W United States Patent 3,090,975 AMPIMIOUS CARAVAN Alfred Bernard Franks, 37 Delmar Parade, Glades Bay, Gladesville, near Sydney, New South Wales, Australia Filed Nov. 24, 1961, Ser. No. 154,781 iaims priority, application Australia Nov. 24, 196i 1 Claim. (Cl. 9-1) This invention has been devised to provide an amphibious caravan mounted on wheels and having buoyancy units connected thereto by means which enable the buoyancy units to be supported on top of the caravan for road transport and which enable the buoyancy units to be moved to a position to support the caravan on water.
One embodiment of the invention is described with reference to the annexed drawings wherein:
FIGURES 1 and 2 are perspective views of the caravan with the buoyancy units supported on the top of a caravan and in caravan floating support position respectively;
FIGURES 3 and 4 are side elevations of the caravan with the buoyancy units in the positions shown in FIG- URES 1 and 2 respectively;
FIGURE 5 is an end elevation of the caravan with the buoyancy units in the position shown in FIGURES 2 and 4;
FIGURES 6 and 7 are fragmentary perspective views of one of the devices which are used to hold the buoyancy units in the positions shown in FIGURES 1 and 2.
In this embodiment of the invention the buoyancy units 1 are two flat-topped pontoons with a out water nose 2. The pontoons are made of a shell of marine plywood or resin bonded fibre glass which is filled with a foamed or expanded synthetic resin (i.e. polyurethane). They are so much longer than a caravan as is necessary to support a decking 3, 4 at each end respectively. Catches 5 hold the decking in place on the pontoons when the pontoons are in caravan supporting position. In addition, the catches 5 achieve an interlock of the decking 3-4 with the pontoons 1 thus forming a catamaran-like structure. The decking 4 is constructed to support an outboard motor which is indicated by the reference 6.
Two tubular posts 7 having foot plates 8 are mounted on the top of each pontoon adjacent the longitudinal edge next to the caravan. Braces may be incorporated to make the post-pontoon assembly rigid.
3,996,975 Patented May 28, 1963 ice When the pontoons are in caravan supporting position the sides of the caravan rest upon the pontoons as shown in FIGURES 2 and 5.
Two clevis brackets 9 are fixed to each side wall 9a of the caravan 10 at mid-heighth; they are located to hold the pontoons in a selected position relative to the caravan, and to permit the pontoons to be moved from a stowage position on top of the caravan to a caravan water borne position as illustrated in the drawings. A hinge pin 11 in the top of each post 7 supports the pontoons in the clevis brackets.
Brackets 12 and 13 are also fixed to each side wall 9a; one pair adjacent the top thereof and the other pair adjacent the bottom and in alignment with the respective clevis brackets 9. These brackets 12, 13 (FIGURES 6-7) are made of plate which is shaped to provide wedge slots 14. A clamp plate 15 shaped to embrace a tubular post 7 has wedge ends 16 made to fit in the wedge slots 14 and a handle 17 whereby it can be moved into and out of post holding position. Means, such as locking pins, may be provided to secure the clamp plate in post holding position.
I claim:
An amphibious caravan comprising, in combination, a caravan body including a floor, side, and end walls, and a roof, wheels beneath the floor, a pair of spaced posts having their inner ends pivotally connected substantially to the horizontal median line of said opposite side walls, and a pair of pontoons each having a top wall connected medially to the outer ends of each pair of related posts, whereby, when the pontoons are elevated the outer edge portions of the top walls thereof overlie and rest on the side portions of the top wall of the caravan body, and, when the pontoons are lowered the inner edge portions of the top walls thereof underlie the floor of said caravan body to support the latter above the surface of the Water.
References Cited in the file of this patent UNITED STATES PATENTS 2,588,084 Bushfield Mar. 4, 1952 2,802,221 OMara Aug. 13, 1957 FOREIGN PATENTS 177,216 Great Britain Mar. 14, 1922 318,048 Great Britain Aug. 29, 1929 501,126 Italy Nov. 23, 1954
US154781A 1960-11-24 1961-11-24 Amphibious caravan Expired - Lifetime US3090975A (en)

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AU3090975X 1960-11-24

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172134A (en) * 1963-11-12 1965-03-09 Dixon B Livingstone Cabin with pontoons
US3436774A (en) * 1968-01-09 1969-04-08 William B Schmitz Watercraft
US3760764A (en) * 1972-02-28 1973-09-25 W Jones Camper boat apparatus
US4048685A (en) * 1976-02-12 1977-09-20 Gail William A Trailable houseboat
FR2523044A1 (en) * 1982-03-11 1983-09-16 Ludinant Luc Multi-purpose leisure vehicle - comprises caravan incorporating floats which, when deployed, convert vehicle into catamaran
US6640737B2 (en) * 2002-03-14 2003-11-04 William S. Chacon Retractable multi-hulled watercraft
CN106827989A (en) * 2017-02-21 2017-06-13 林方杰 A kind of amphibious Multipurpose caravan compartment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB177216A (en) * 1920-12-14 1922-03-14 Independent Pneumatic Tool Co Improvements in clamps for hose or the like
GB318048A (en) * 1928-11-03 1929-08-29 Alfred Thomas Skinner Combined trailer caravan and house boat
US2588084A (en) * 1950-07-18 1952-03-04 Bushfield Keith Combined trailer and pontoon boat
US2802221A (en) * 1956-05-04 1957-08-13 William T O'mara Safety boat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB177216A (en) * 1920-12-14 1922-03-14 Independent Pneumatic Tool Co Improvements in clamps for hose or the like
GB318048A (en) * 1928-11-03 1929-08-29 Alfred Thomas Skinner Combined trailer caravan and house boat
US2588084A (en) * 1950-07-18 1952-03-04 Bushfield Keith Combined trailer and pontoon boat
US2802221A (en) * 1956-05-04 1957-08-13 William T O'mara Safety boat

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172134A (en) * 1963-11-12 1965-03-09 Dixon B Livingstone Cabin with pontoons
US3436774A (en) * 1968-01-09 1969-04-08 William B Schmitz Watercraft
US3760764A (en) * 1972-02-28 1973-09-25 W Jones Camper boat apparatus
US4048685A (en) * 1976-02-12 1977-09-20 Gail William A Trailable houseboat
FR2523044A1 (en) * 1982-03-11 1983-09-16 Ludinant Luc Multi-purpose leisure vehicle - comprises caravan incorporating floats which, when deployed, convert vehicle into catamaran
US6640737B2 (en) * 2002-03-14 2003-11-04 William S. Chacon Retractable multi-hulled watercraft
CN106827989A (en) * 2017-02-21 2017-06-13 林方杰 A kind of amphibious Multipurpose caravan compartment
CN106827989B (en) * 2017-02-21 2019-03-29 荣成康派斯新能源车辆股份有限公司 A kind of amphibious Multipurpose caravan compartment

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