EP1645500A1 - Aufblasbares Schlauchboot - Google Patents

Aufblasbares Schlauchboot Download PDF

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Publication number
EP1645500A1
EP1645500A1 EP05109328A EP05109328A EP1645500A1 EP 1645500 A1 EP1645500 A1 EP 1645500A1 EP 05109328 A EP05109328 A EP 05109328A EP 05109328 A EP05109328 A EP 05109328A EP 1645500 A1 EP1645500 A1 EP 1645500A1
Authority
EP
European Patent Office
Prior art keywords
pontoon
boat
tube
expandable
gripping part
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.)
Withdrawn
Application number
EP05109328A
Other languages
English (en)
French (fr)
Inventor
Stefan Witte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wings AB
Original Assignee
Wings AB
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 Wings AB filed Critical Wings AB
Publication of EP1645500A1 publication Critical patent/EP1645500A1/de
Withdrawn legal-status Critical Current

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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 
    • B63B7/00—Collapsible, foldable, inflatable or like vessels
    • B63B7/06—Collapsible, foldable, inflatable or like vessels having parts of non-rigid material
    • B63B7/08—Inflatable
    • B63B7/082—Inflatable having parts of rigid material

Definitions

  • the present invention relates to a boat comprising at least one expandable pontoon tube, which is arranged to extend along at least a part of the perimeter of the boat. A part of the boat is connectable by a gripping part with the expandable pontoon tube.
  • the above mentioned boats are already known and exist in different embodiments. Usually they are provided with a U-shaped inflatable pontoon, or alternatively a number of pontoons forming the U-shape. Further this kind of boats are called rubber boats or RIB (Rigid Inflatable Boat) and they can be provided with a rigid hull between the U-shaped shanks of the pontoon made of for example glass fiber reinforced plastic. In other embodiments the hull can constitute of a flooring on top of a more flexible sheet material. This kind of boats are used in a variety of applications, for example as a dinghy, jolly boat, larger pleasure boat, life raft or professional boat etc.
  • RIB Rubber Inflatable Boat
  • a problem with rubber boats or RIB can be that there is tolerance problems at the attachment between the pontoons and the hull, which can cause wear and leakage.
  • tolerance problems for example devices for adjustment or two ropes mounted on the outside of the pontoon to achieve good fit for the attachment of a boat part to the hull.
  • this demand very good precision and therefore very good tolerances at the attachment, which makes this kind of boat expensive to produce.
  • the invention is based on a principle that the expansion of the pontoon can be used to achieve a locking function for coupling of parts to the pontoon.
  • a boat comprising at least an expandable pontoon tube which is arranged extending along at least a part of the perimeter of the boat, wherein a boat part is connectable by a gripping part with the expandable pontoon tube, wherein the interior of the expandable pontoon tube has a string shaped grip part, which is adapted, together with adjacent wall material of the pontoon, to be gripped by said gripping part and the straining force in the wall of the pontoon during usage of the boat is provided for releasable attaching the pontoon tube to the gripping part.
  • a boat according to the inventive concept can be used at both higher and lower speed, if the rest of the components are designed for this load, with out other changes than adjustment of the pressure within the pontoon.
  • a boat according to the inventive concept is very flexible in the way it can be used.
  • Said boat part is preferably a rigid hull part. It is of course possible to connect different kind of boat parts to a pontoon by use of the technique according to the present invention. It is desirable to achieve a good connection between a hull and a pontoon, for example U-shaped.
  • This kind of hull can be formed in many different ways, for example they can be rigid, inflatable or a combination of flexible and rigid hull materials.
  • the pontoon tube according to the present invention is expandable by inflation. It is also possible to achieve the expansion of the pontoon in other ways, for example to use a spring means inside a pontoon to suck gas in, to use an expandable foam for increase of the volume of the pontoon, to use a gas tank with high pressure for increase of the pressure inside the pontoon or to use a gas generated by a pyrotechnical device to fill the pontoon.
  • the grip part is a rope which is provided inside the expandable pontoon tube.
  • the rope is protected by the surrounding pontoon material.
  • wear and other loads on the rope is minimized.
  • the grip part can be wire or for example an elongated profile of another material.
  • Another advantage with the present invention is that the gripping part is formed for waterproof fit with the outer surface of the pontoon tube. In this way there is no need for extra sealing of the connection between different hull portions that require a waterproof connection.
  • the idea for the present invention is based on the prerequisite that the cross section of the griping portion has an opening that is larger than twice the thickness of the wall material of the pontoon but less than the sum of the thickness of the grip part and twice the thickness of the wall material of the pontoon.
  • the grip part and the surrounding wall material of the pontoon is kept inside the gripping part across the longitudinal direction of the grip part by geometrical locking.
  • the gripping part and the pontoon is kept in position in relation to each other in the longitudinal direction by friction locking. The friction force will increase when the pressure between the gripping part and the pontoon material increases during expansion and strain of the pontoon.
  • the position of the grip part is fixed inside the expandable pontoon tube.
  • This fixation of position can be provided by a weld, seam, glue, or other adhesive material to keep the grip part in position on the inside of the pontoon wall material.
  • the present invention is used by a grip part and/or gripping part extending essentially along the whole length of the pontoon. This is advantageous to avoid variations in the diameter of the pontoon tube that would be the case if the grip part and the gripping part is applied on a shorter length of the pontoon tube with constant diameter.
  • Figure 1 shows a boat 4 where the complete or a part of the hull can be provided by expandable pontoons 1.
  • this kind of boats are provided with a continuous U-shaped pontoon 1 that is connected to the hull 5.
  • the pontoon part of a hull can be provided by a number of separate pontoons or one continuous pontoon that is divided by interior walls to provide cells.
  • the technique according to the present invention can of course also be applied on other kind of floating equipment and shall not be limited to the above described boats with U-shaped pontoon.
  • the present invention can be used for connection of pontoons with different kind of boat parts, like for example steering console, floor plate, seats, stern etc.
  • FIG 2a-c it is shown step by step how the connection of a boat part is performed with a pontoon.
  • the material of the pontoon wall is preferably of a traditionally kind of pontoon, i.e. of a strong and relatively stiff in comparison to the forces the material is exposed to during use.
  • the material in the preferred embodiment has approximately no stretch, to avoid a balloon effect when the pontoon 1 is inflated.
  • Figure 2a shows a none expanded pontoon 1 with interior grip part 2.
  • Figure 2b shows how the grip part 2 together with adjacent wall material of the pontoon has been slid in the longitudinal direction into the gripping part 3.
  • the grip part 2 is slid, together with the adjacent pontoon tube material, into the gripping part 3 from the stem to the stern of the boat 4.
  • FIG 2c is shown, during use of the boat 4, how sealing and locking is achieved between the pontoon 1 and the gripping part 3 by expansion of the pontoon and in the preferred embodiment is provided with a positive pressure in relation to the surrounding
  • the griping part 3 can be formed with different kind of alternative cross sections.
  • a prerequisite for keeping the pontoon 1 and the boat part connected is that the cross section of the griping part has an opening that is small enough or has a shape that the grip part and adjacent wall material of the pontoon can not escape.
  • Figure 2c further shows how the pressure increase between the wall material of the pontoon and the griping part 3 when the pontoon is expanded and pressurized at the same time as the grip part 2 is forced towards the opening of the cross section profile of the griping part 3.
  • a further prerequisite for the function of the present invention is that the grip part 2 and the surrounding wall material of the pontoon can be accommodated inside the cross section profile of the griping part 3.
  • the cross section in figure 2 does only show a preferred embodiment of the invention where the cross section of the gripping part is C-shaped and the sealing between pontoon and gripping part is provided by geometrical locking when the grip part 2 and the adjacent wall material of the pontoon is inserted into the gripping part. Further when the force in the pontoon is increased, this will help to expand and strain the pontoon as the same time as it helps the friction force between the gripping part 3 and the wall material of the pontoon. This lead to that the pontoon 1 will be "locked” in relation to the longitudinal direction of the gripping part 3. All together the geometrical locking and the friction locking provides the hull 5 and the pontoon 1 to form a stable boat 4.
  • the grip part 2 has preferably a circular cross section, but also other cross section profiles can be used.
  • the grip part 2 can be provided as rope, wire or being integrated in the wall material of the pontoon as a swelling on the inside of the pontoon wall.
  • the grip part 2 is constituted of a rope or a wire it is preferable that the rope/wire is attached to the inside of the pontoon wall. This can be achieved by attaching the rope/wire with a seam or with a loop at the wall of the pontoon, further methods can be to glue or spot weld the rope/wire on the inside of the wall of the pontoon.
  • the diameter of the pontoon will decrease by using a part of the wall material of the pontoon as it is wrapped around the grip part.
  • the design of the pontoon is facilitated and it is easier to achieve an attachment with good appearance (no fold or wrinkles) if the attachment extends along the whole length of the pontoon.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
EP05109328A 2004-10-08 2005-10-07 Aufblasbares Schlauchboot Withdrawn EP1645500A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0402446A SE527734C2 (sv) 2004-10-08 2004-10-08 Gummibåt

Publications (1)

Publication Number Publication Date
EP1645500A1 true EP1645500A1 (de) 2006-04-12

Family

ID=33434221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05109328A Withdrawn EP1645500A1 (de) 2004-10-08 2005-10-07 Aufblasbares Schlauchboot

Country Status (2)

Country Link
EP (1) EP1645500A1 (de)
SE (1) SE527734C2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008010731A1 (en) * 2006-07-19 2008-01-24 Mapua Limited Tube attachment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0370668A1 (de) * 1988-11-29 1990-05-30 William H. Cochran Modularer, starrer aufblasbarer Aufbau eines Wasserfahrzeuges
FR2721579A1 (fr) * 1994-06-24 1995-12-29 Zodiac Int Embarcation à carène rigide et structure gonflable de flottabilité.
US20040144297A1 (en) * 2001-05-17 2004-07-29 Hong Kwang Sun Prefabricated boat
EP1514794A2 (de) * 2003-09-10 2005-03-16 FB DESIGN S.r.l. Schiffsrumpf

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0370668A1 (de) * 1988-11-29 1990-05-30 William H. Cochran Modularer, starrer aufblasbarer Aufbau eines Wasserfahrzeuges
FR2721579A1 (fr) * 1994-06-24 1995-12-29 Zodiac Int Embarcation à carène rigide et structure gonflable de flottabilité.
US20040144297A1 (en) * 2001-05-17 2004-07-29 Hong Kwang Sun Prefabricated boat
EP1514794A2 (de) * 2003-09-10 2005-03-16 FB DESIGN S.r.l. Schiffsrumpf

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008010731A1 (en) * 2006-07-19 2008-01-24 Mapua Limited Tube attachment

Also Published As

Publication number Publication date
SE0402446L (sv) 2006-04-09
SE0402446D0 (sv) 2004-10-08
SE527734C2 (sv) 2006-05-23

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