EP0118305B1 - Easily transportable boat - Google Patents
Easily transportable boat Download PDFInfo
- Publication number
- EP0118305B1 EP0118305B1 EP84301445A EP84301445A EP0118305B1 EP 0118305 B1 EP0118305 B1 EP 0118305B1 EP 84301445 A EP84301445 A EP 84301445A EP 84301445 A EP84301445 A EP 84301445A EP 0118305 B1 EP0118305 B1 EP 0118305B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- boat
- opening
- seat
- operator
- stem portion
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
- B63B34/10—Power-driven personal watercraft, e.g. water scooters; Accessories therefor
Definitions
- the invention relates to a boat and in particular to a row of paddle boat.
- boat as used in this specification however includes any vessel with or without a deck and which may be propelled by oars or paddles or by sail or power as well as surfboards, sailboards or the like.
- US-A-3638256 discloses a boat in accordance with the precharacterising part of claim 1.
- the operator sits on a bucket-type seat which is placed low-down in the hull.
- the leading edge of the seating ledge is thus only slightly above the level of the front edge of the opening in the boat. This means that as the speed of the boat rises water welling upwards through the opening tends to rise above the level of the seating ledge making the seat awash and causing significant drag on the boat.
- a boat comprising a buoyant body having an access opening through which an operator may pass his feet to engage the ground, said opening having a leading edge defined by a lower surface of the front portion of the body and a trailing edge defined by a front edge of a seating ledge whose lower surface is inclined aft downwardly characterised in that: grip means are provided on the body or defined by at least a portion of the body on opposed sides of the access opening to allow the operator, while standing in the opening, both to lift the boat up and to carry it from one location to another and in that the lower surface of the seating ledge extends from a level above the water level when the boat is in use with the operator sitting on the seat.
- the grip means are provided for carrying the boat.
- the advantage of this feature is that the boat can be readily transported by an operator from one location to another.
- the boat in a preferred embodiment of the invention includes a stem portion and two side members extending rearwardly of the stem portion.
- the advantages of this construction of boat are stability and that the boat has particularly good buoyancy.
- a seat is provided aft of the opening on the seating ledge.
- the seat allows the operator to be accommodated comfortably in the boat.
- the seat extends between the side members and the opening is defined by the stem, the side members and the seat. Because the seat extends between the side members it adds to the structural strength and hence the stability of the boat.
- foot rests are provided forward of the opening.
- the advantage of this feature is that the operator sitting on the seat spans the opening with his legs to distribute the weight evenly, assist the comfort of the operator and the degree of control including ease of steering.
- the boat is provided with means for receiving an engine.
- This feature allows the boat to be fitted with an outboard motor or any engine including a jet engine for increasing the speed of the boat as desired.
- the means for receiving the engine comprises a transom which also contributes to the structure strength and stability of the boat.
- the boat is formed at least partially from a closed cellular material such as a rigid polyurethane foam.
- a closed cellular material such as a rigid polyurethane foam.
- At least portion of the hull of the boat is covered by an outer skin of water resistant material such as glass fibre. Again, this adds to the stability of the boat and will decrease the risk of damage to the boat in use.
- the boat 1 is of rigid polyurethane foam construction and comprises a hollow stem portion 2 of inverted V shape.
- Two side buoyancy members 3 and 4 also of rigid polyurethane foam construction extend from the stem portion 2 to the stern 5 of the boat 1.
- An opening 10 through the boat is formed between the side buoyancy members 3 and 4, the seat 8 and the stem portion 2 so that an operator may pass his feet through the boat to engage the ground and transport the boat from one location to another.
- Grip means provided by hand grips 11 mounted on the side members 3 and 4 permit the boat to be held so that it may be carried for example over extremely shallow water, or dry ground.
- Recesses 12 in the stem portion 2 form foot rests 13 so that an operator sitting on the seat 8 spans the opening 10 with his legs.
- the underside of the transverse portion 7 forming the seat 8 is inclined downwardly towards the stern 5 of the boat 1 at 14. This prevents splashing of the operator when the boat is moving.
- a transom member 15 also incorporated in the transverse portion 7 is provided for receiving an outboard motor, if desired. Conventional oar locks may also be provided if desired.
- a well 16 is provided in the stem portion 2 to take a watertight box, for example, for carrying tools, food or the like.
- Another well 17 is provided between the transverse portion 7 and the transom member 15.
- the operator sits on the seat 8 pushes his legs forward to span the opening 10 and puts his feet on the foot rests 12. He then rows or paddles the boat, or if desired, uses an outboard motor mounted on the transom 15. When water less than three inches in depth is encountered the operator puts his feet through the opening 10, stands up, catches the hand grips 11 and walks while carrying the boat at the same time until more suitable waters are reached.
- Typical dimensions for a single seater boat would be the length of between 2) to 3 meters and width of one meter.
- the length of the boat would be increased as the number of seats is increased.
- one or any number of openings may be required depending on the weight of the boat.
- FIG. 8 to 10 there is illustrated another boat according to the invention indicated generally by the reference numeral 50.
- the boat 50 is similar to that described with reference to Figs. 1 to 7 and like parts are assigned the same reference numerals.
- hand grips 51 are moulded into the side members 3,4 on either side of the opening 10 to allow the boat to be carried by an operator from one location to another.
- An additional small sized seat 52 is provided forward of the opening 10. The front of the seat 52 is inclined downwardly rearwardly to provide a foot rest 53 for the operator.
- the boat will be fitted with an engine other than an outboard engine which may require a relatively large draught.
- the boat may be fitted with a jet or any other suitable type of engine.
- the opening in a boat may be of any suitable size or shape to accommodate an operator's legs.
- any other suitable shape could be used. Indeed, if desired, a more conventional, clinker built or carvel construction could be used, in which case, the opening 10 may be surrounded by a watertight bulk head to prevent water from leaking into the boat.
- the boat has been described as being manufactured from rigid polyurethane foam it may also be manufactured from any other suitable material, for example, other plastics material, fibre glass, fibre cement, timber, moulded timber skin and in particular any closed cellular material or indeed any suitable material. At least portion of the hull of the boat may be coated with an outer skin of water resistant material such as a glass fibre reinforced skin.
- stern and side members of the boat could, if desired, be of hollow construction. In some cases it is envisaged that they may be of a solid expanded polystyrene material coated with a thin layer of fibre glass material.
- transom could be provided aft of the side members.
- boat could be adapted to receive a mast and sail, and in certain cases, a centre plate or other suitable retractable keels.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Tires In General (AREA)
- Mushroom Cultivation (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Mechanical Control Devices (AREA)
Abstract
Description
- The invention relates to a boat and in particular to a row of paddle boat. The term "boat" as used in this specification however includes any vessel with or without a deck and which may be propelled by oars or paddles or by sail or power as well as surfboards, sailboards or the like.
- A problem frequently experienced with such boats is that they are unsuitable for use in shallow water. In general, such boats have a draught of twelve inches or more. Accordingly, where shallower waters are encountered, the boat has to be either abandoned or alternatively dragged over the shallow water until deeper water is again reached. This, it will be appreciated, is very unsatisfactory in that it leads to damage to the keel and bilges of the boat, or where the boat has to be abandoned, it leads to considerable inconvenience.
- US-A-3638256 discloses a boat in accordance with the precharacterising part of claim 1. However, in the boat described the operator sits on a bucket-type seat which is placed low-down in the hull. The leading edge of the seating ledge is thus only slightly above the level of the front edge of the opening in the boat. This means that as the speed of the boat rises water welling upwards through the opening tends to rise above the level of the seating ledge making the seat awash and causing significant drag on the boat.
- According to the present invention, there is provided a boat comprising a buoyant body having an access opening through which an operator may pass his feet to engage the ground, said opening having a leading edge defined by a lower surface of the front portion of the body and a trailing edge defined by a front edge of a seating ledge whose lower surface is inclined aft downwardly characterised in that: grip means are provided on the body or defined by at least a portion of the body on opposed sides of the access opening to allow the operator, while standing in the opening, both to lift the boat up and to carry it from one location to another and in that the lower surface of the seating ledge extends from a level above the water level when the boat is in use with the operator sitting on the seat.
- The grip means are provided for carrying the boat. The advantage of this feature is that the boat can be readily transported by an operator from one location to another.
- One advantage of the underside of the seat extending aft downwardly is that the operator will not be splashed by water when the boat is moving.
- In a preferred embodiment of the invention the boat includes a stem portion and two side members extending rearwardly of the stem portion. The advantages of this construction of boat are stability and that the boat has particularly good buoyancy.
- In a further embodiment of the invention a seat is provided aft of the opening on the seating ledge. The seat allows the operator to be accommodated comfortably in the boat.
- Preferably the seat extends between the side members and the opening is defined by the stem, the side members and the seat. Because the seat extends between the side members it adds to the structural strength and hence the stability of the boat.
- In another embodiment of the invention foot rests are provided forward of the opening. The advantage of this feature is that the operator sitting on the seat spans the opening with his legs to distribute the weight evenly, assist the comfort of the operator and the degree of control including ease of steering.
- In another embodiment of the invention the boat is provided with means for receiving an engine. This feature allows the boat to be fitted with an outboard motor or any engine including a jet engine for increasing the speed of the boat as desired. Preferably the means for receiving the engine comprises a transom which also contributes to the structure strength and stability of the boat.
- In a further embodiment of the invention the boat is formed at least partially from a closed cellular material such as a rigid polyurethane foam. The advantage of using a closed cellular material is that sufficient buoyancy and stability is obtained while still providing a boat that is sufficiently light weight to be carried by an operator. The material is also relatively cheap and is easily moulded into a desired shape thus keeping labour costs to a minimum. Further, even if the boat is broken up as a result of bad weather or an accident the various sections of the boat can still be used by the operator to keep afloat while awaiting rescue. Further, the material has particularly good heat insulation properties. Another advantage of using such material is that the boat maintains its stability in any position even if the boat is ruptured or punctured.
- In another embodiment of the invention at least portion of the hull of the boat is covered by an outer skin of water resistant material such as glass fibre. Again, this adds to the stability of the boat and will decrease the risk of damage to the boat in use.
- The invention will be more clearly understood from the following description thereof given by way of example only with reference to the accompanying drawings in which:-
- Fig. 1 is a perspective view from above of a boat according to the invention,
- Fig. 2 is a perspective view from below of the boat of Fig. 1,
- Fig. 3 is a plan view of the boat of Fig. 1,
- Fig. 4 is a side elevational view of the boat of Fig. 1,
- Fig. 5 is a sectional elevational view of the boat of Fig. 1, on the line V-V of Fig. 3,
- Fig. 6 is a sectional end view of the boat of Fig. 1 on the line VI-VI of Fig. 4,
- Fig. 7 is a sectional end view of the boat of Fig. 1 on the line VII-VII of Fig. 4,
- Fig. 8 is a perspective view of another boat according to the invention,
- Fig. 9 is a side elevational view of the boat of Fig. 8, and
- Fig. 10 is a cross sectional view of the boat of Fig. 9 on the line X-X.
- Referring to the drawings there is illustrated a boat according to the invention indicated generally by the reference numeral 1. The boat 1 is of rigid polyurethane foam construction and comprises a
hollow stem portion 2 of inverted V shape. Twoside buoyancy members stem portion 2 to thestern 5 of the boat 1. Atransverse portion 7 extending between theside members seat 8. - An
opening 10 through the boat is formed between theside buoyancy members seat 8 and thestem portion 2 so that an operator may pass his feet through the boat to engage the ground and transport the boat from one location to another. Grip means, provided byhand grips 11 mounted on theside members stem portion 2 form foot rests 13 so that an operator sitting on theseat 8 spans the opening 10 with his legs. As will be apparent particularly from Figs. 2 and 3 the underside of thetransverse portion 7 forming theseat 8 is inclined downwardly towards thestern 5 of the boat 1 at 14. This prevents splashing of the operator when the boat is moving. - A
transom member 15 also incorporated in thetransverse portion 7 is provided for receiving an outboard motor, if desired. Conventional oar locks may also be provided if desired. Awell 16 is provided in thestem portion 2 to take a watertight box, for example, for carrying tools, food or the like. Anotherwell 17 is provided between thetransverse portion 7 and thetransom member 15. - It will be apparent, particularly from Figs. 6 and 7 that the
side members - In use, when the boat is launched, the operator sits on the
seat 8 pushes his legs forward to span theopening 10 and puts his feet on the foot rests 12. He then rows or paddles the boat, or if desired, uses an outboard motor mounted on thetransom 15. When water less than three inches in depth is encountered the operator puts his feet through theopening 10, stands up, catches thehand grips 11 and walks while carrying the boat at the same time until more suitable waters are reached. - Typical dimensions for a single seater boat would be the length of between 2) to 3 meters and width of one meter. The length of the boat would be increased as the number of seats is increased. In the case of a boat with two or more seats it will be appreciated that one or any number of openings may be required depending on the weight of the boat.
- Using rigid polyurethane foam material with a skin of fibre glass it is estimated that the weight of a single seater boat would be in the region of 15 to 20 kilograms which should be sufficiently light to be carried by an adult over relatively long distances.
- Referring to Figs. 8 to 10 there is illustrated another boat according to the invention indicated generally by the
reference numeral 50. Theboat 50 is similar to that described with reference to Figs. 1 to 7 and like parts are assigned the same reference numerals. In this case hand grips 51 are moulded into theside members opening 10 to allow the boat to be carried by an operator from one location to another. An additional smallsized seat 52 is provided forward of theopening 10. The front of theseat 52 is inclined downwardly rearwardly to provide afoot rest 53 for the operator. - It will be apparent, particularly from Fig. 10 that the
side buoyancy members - It will be appreciated that in some cases the boat will be fitted with an engine other than an outboard engine which may require a relatively large draught. For example the boat may be fitted with a jet or any other suitable type of engine.
- It will be appreciated that the opening in a boat may be of any suitable size or shape to accommodate an operator's legs.
- Additionally, it will be appreciated that while a boat of a particular shape has been described any other suitable shape could be used. Indeed, if desired, a more conventional, clinker built or carvel construction could be used, in which case, the
opening 10 may be surrounded by a watertight bulk head to prevent water from leaking into the boat. - It will also be appreciated that while the boat has been described as being manufactured from rigid polyurethane foam it may also be manufactured from any other suitable material, for example, other plastics material, fibre glass, fibre cement, timber, moulded timber skin and in particular any closed cellular material or indeed any suitable material. At least portion of the hull of the boat may be coated with an outer skin of water resistant material such as a glass fibre reinforced skin.
- It will further be appreciated that the stern and side members of the boat could, if desired, be of hollow construction. In some cases it is envisaged that they may be of a solid expanded polystyrene material coated with a thin layer of fibre glass material.
- It will also be appreciated that if desired the transom could be provided aft of the side members. Furthermore, it will be appreciated that if desired, the boat could be adapted to receive a mast and sail, and in certain cases, a centre plate or other suitable retractable keels.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84301445T ATE44697T1 (en) | 1983-03-04 | 1984-03-05 | EASILY TRANSPORTABLE BOAT. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IE464/83A IE55258B1 (en) | 1983-03-04 | 1983-03-04 | A boat |
IE46483 | 1983-03-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0118305A1 EP0118305A1 (en) | 1984-09-12 |
EP0118305B1 true EP0118305B1 (en) | 1989-07-19 |
Family
ID=11013031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84301445A Expired EP0118305B1 (en) | 1983-03-04 | 1984-03-05 | Easily transportable boat |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0118305B1 (en) |
AT (1) | ATE44697T1 (en) |
DE (1) | DE3479020D1 (en) |
IE (1) | IE55258B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9776686B2 (en) | 2015-12-03 | 2017-10-03 | Formex Manufacturing, Inc. | Modular watercraft with in-line or pontoon-type flotation |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19547785A1 (en) * | 1995-12-20 | 1997-07-03 | Benedikt Duerr | Light unsinkable recreational boat for roving activities |
CN100391786C (en) * | 2004-09-14 | 2008-06-04 | 杭州飞鹰船艇有限公司 | Novel yacht |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2747204A (en) * | 1954-01-08 | 1956-05-29 | Charles J Erickson | Duck hunter's boat |
US3324488A (en) * | 1965-10-22 | 1967-06-13 | Jr Ben F Schulz | Aquatic floater |
US3638256A (en) * | 1970-02-24 | 1972-02-01 | Hubert L Mcintyre | Motor-propelled fishing float |
US4315475A (en) * | 1980-03-07 | 1982-02-16 | Echols John B | Knockdown catamaran |
-
1983
- 1983-03-04 IE IE464/83A patent/IE55258B1/en not_active IP Right Cessation
-
1984
- 1984-03-05 EP EP84301445A patent/EP0118305B1/en not_active Expired
- 1984-03-05 AT AT84301445T patent/ATE44697T1/en active
- 1984-03-05 DE DE8484301445T patent/DE3479020D1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9776686B2 (en) | 2015-12-03 | 2017-10-03 | Formex Manufacturing, Inc. | Modular watercraft with in-line or pontoon-type flotation |
Also Published As
Publication number | Publication date |
---|---|
IE55258B1 (en) | 1990-07-18 |
EP0118305A1 (en) | 1984-09-12 |
IE830464L (en) | 1984-09-04 |
DE3479020D1 (en) | 1989-08-24 |
ATE44697T1 (en) | 1989-08-15 |
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