US20050188909A1 - Semirigid boat for use as a service watercraft - Google Patents

Semirigid boat for use as a service watercraft Download PDF

Info

Publication number
US20050188909A1
US20050188909A1 US11/065,928 US6592805A US2005188909A1 US 20050188909 A1 US20050188909 A1 US 20050188909A1 US 6592805 A US6592805 A US 6592805A US 2005188909 A1 US2005188909 A1 US 2005188909A1
Authority
US
United States
Prior art keywords
boat
semirigid
floating
elements
deck
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.)
Abandoned
Application number
US11/065,928
Other languages
English (en)
Inventor
Giuseppe Carlini
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of US20050188909A1 publication Critical patent/US20050188909A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • 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
    • 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 semirigid boat, which has been specifically designed for operation as a service watercraft.
  • the semirigid boat according to the present invention can be used as a service watercraft for short and middle range navigation, and for disembarking and embarking tourists and passengers onto/from cruise and pleasure vessels.
  • the pneumatic tubular elements can be damaged both during the navigation and in hauling operations, and as the boat is hauled to a dry condition.
  • possible holes of a comparatively large size can greatly reduce the floating capability of the boat, up to prevent the latter from stably floating and, accordingly, could negatively affect the navigation quality and safety, and, in serious events, to cause the boat to sink.
  • the height of the sidewalls, and then of the free edge thereof, is in fact related to the diameter of the pneumatic tubular elements and, consequently, is necessarily limited.
  • This drawback involves, as a further disadvantage, a low level walking surface, with respect to the water surface.
  • the aim of the present invention is to provide such a semirigid boat, specifically designed for use as a service watercraft, adapted to overcome the above mentioned drawbacks affecting the prior art.
  • a main object of the present invention is to provide such a semirigid boat, specifically designed as a service watercraft for a short and middle range navigation, for disembarking and embarking tourists and passengers onto/from cruise and pleasure vessels, which has a novel construction which is very reliable in the time.
  • Yet another object of the present invention is to provide such a semirigid boat having enhanced payload capabilities.
  • Yet another object of the present invention is to provide such a semirigid boat which provides a very high navigation comfort.
  • a semirigid boat for a service watercraft use, comprising a boat bottom, a boat deck and floating means mutually associated with one another, characterized in that said floating means comprise one or more synthetic material floating elements, having a peculiar shape.
  • FIG. 1 is a partially cross-sectioned front view illustrating the subject construction in an operating step preceding the assembling of the semirigid boat;
  • FIG. 2 is a side view of some floating elements included in the boat according to the present invention.
  • FIG. 3 is a top view of the same floating elements
  • FIG. 4 is a partially enlarged side view illustrating the connection of two of said floating elements
  • FIG. 5 is a partial top plan view illustrating the connection shown in FIG. 4 ;
  • FIG. 6 is a partially cross-sectioned front view of the semirigid boat
  • FIG. 7 is a cross-sectioned front view of a floating element included in the subject semirigid boat
  • FIG. 8 is a front view of a tie-rod element used in the semirigid boat according to the invention.
  • FIG. 9 is a cross-sectioned front view of the element shown in FIG. 7 , to which the tie-rod shown in FIG. 8 has been applied;
  • FIG. 10 is a partially exploded side view of the semirigid boat
  • FIG. 11 is a top plan view of an element included in the semirigid boat according to the invention.
  • FIG. 12 is a cross-sectioned view of the boat, with an inner tubular element molded in a mold and connected to the boat bottom according three configurations;
  • FIG. 13 is a partially cross-sectioned view of the boat with the tubular element welded to the boat bottom at two points, with a polyurethane joint;
  • FIG. 14 is an enlarged view of the detail of FIG. 13 ;
  • FIG. 15 is a partially cross-sectioned view of the boat with the tubular element welded to the boat bottom at a point, with a triple polyurethane joint covering element;
  • FIG. 16 is an enlarged view of the detail shown in FIG. 15 ;
  • FIG. 17 is a partially cross-sectioned view of the boat with the tubular element structurally welded in a “A”-shape profile to the boat bottom;
  • FIG. 18 is an enlarged view of the detail of FIG. 17 .
  • the semirigid boat which has been generally indicated by the reference number 1 , comprises a rigid boat bottom 2 , preferably made by using composite fibrous materials with a thermosetting polymeric matrix.
  • a boat deck 3 overlaying the boat bottom 2 , comprises perimetrically a plurality of ridges or profiles 4 having a trapezoidal cross-section.
  • the trapezoidal profiles 4 are preferably made in the boat deck molding operation, and on said profiles of ridges 3 are provided a housing for semirigid floating elements 5 .
  • Each of the above mentioned elements comprises a closed cell polyurethane foam core, providing a great shape stability.
  • the semirigid floating element 5 in particular, can be made, for example, by extrusion or mold injection starting from closed cell polyurethane foam.
  • This material even after periods of months, does not absorb water and has a very high wear and atmospheric agent resistance.
  • the used foam material is advantageously provided with such mechanical characteristics as to have a resilient performance, similar to that of air enclosed in conventional floating tubular elements, with a larger cushioning effect and a larger strain resistance.
  • tubular element is preferably fully made of closed cell foamed polyethylene, coated by polyurethane, thereby assuring anti-sinking capabilities even in a case of breakages or cuts, as can occur because of impacts against other boats or other articles having rough surfaces, or cutting parts.
  • the high elasticity of the foamed polyethylene provides a high energy or power absorption, and a small reaction force, which would be essential for preventing the risk of possible damages.
  • a specifically designed type of foam material including a polyethylene component having very good binding characteristics for binding it to polyurethane polymers.
  • foamed polyethylene is coated by a high thickness polyurethane elastomeric layer, allowing a very good wear and breaking resistance, thereby assuring a long duration even in heavy use condition.
  • Such a material is conventionally used for making conveyor belts in granite quarries and it has a very high wear resistance.
  • the shape or configuration of the floating elements 5 provides an approximatively “H”-shape cross-section, which, accordingly, is different from the conventional cross-section of prior circular cross-section pneumatic floating elements, since the used polyurethane foam has a self-supporting or peculiar shape, which is defined in designing the pneumatic floating elements.
  • each element 5 allows to obtain a perfect proofing and wear resistance, against both atmospheric agents and accidental tearings or cuts.
  • Each floating element is patterned with a vertical extension variable cross-section which comprises, for a disassemblable embodiment, at least two recesses, i.e. a bottom recess 6 and a top recess 7 having a trapezoidal cross-section.
  • Said recesses allow to provide a connection with one of the above mentioned profiles 4 provided on the boat deck and a profile 8 applied on a top element 9 having the same perimetrical plan as that of the deck 3 .
  • the mentioned top element 9 which is preferably made by a molding method, comprises a plurality of profiles 8 which correspond to the plurality of profiles 4 provided on the boat deck 3 .
  • said top element 9 is anchored to the boat deck 3 by adjustable tie-rod elements 10 , designed for pressing and holding in a set position the mentioned semirigid floating element 5 .
  • tie-rod elements 10 are preferably made of a rigid round material or of a stainless steel flexible cable, and are advantageously provided with threaded end portions to allow simple clamping and adjusting operations to be quickly performed.
  • tie-rod elements 10 connect each profile 4 of the boat deck 3 with a corresponding profile 8 of the top element 9 , by passing through a floating element 5 which is preliminarily perforated inside the two recesses 6 and 7 .
  • the holes 11 are advantageously coated by a polyurethane layer.
  • tie-rod elements 10 can be adjusted by a series of circular cross-section openings 12 , including a respective plug elements, and formed on the top element 9 .
  • Said tie-rod elements are moreover the single connection to the rigid part of the boat 1 .
  • top element 9 is prevented from moving on a horizontal plane only due to the corresponding rigidity of the broadsides.
  • This latter is preferably performed by a strip 13 made of a material like that of the outer coating of each float element 5 .
  • the above mentioned strip 13 is glued, at the rear end portion of the floating element 5 nearer to the bow, by causing the exceeding portion to project, thereby providing a resilient lip to be overlapped, during the assembling operation, onto the corresponding end portion of the floating element 5 nearer to the stern.
  • each floating element 5 at an end portion thereof, with a narrowed portion 14 adapted to properly receive the hull, in order to reduce the resistance to forward movement and provide a more aesthetic aspect.
  • the above mentioned strip 13 or projecting lip is made, as the coating is assembled, by using an extension-mold of the floating element 5 , to provide finishings and better mechanical characteristics with respect to the side tightness of said floating elements 5 .
  • the tie-rods 10 provide a position limit, so as to vertically press each semirigid floating element 5 during the navigation.
  • the elasticity of the floating elements 5 and the specifically designed connection between the boat deck 3 and top element 9 provide a boat which is generally resilient, having a performance to the navigation stresses and accidental impacts like that of conventional pneumatic floating elements.
  • a further embodiment provides to use a full tubular element, molded in a mold, as it is schematically shown in FIG. 12 , and connected to the boat bottom in at least three patterns as respectively shown in FIGS. 13-18 .
  • FIGS. 13 and 14 show a tubular element 5 welded at two points or spots to the boat bottom 2 with a polyurethane joint.
  • FIGS. 15 and 16 show a tubular element 5 welded at a spot to the boat bottom 2 by a triple joint covering element 55 made of polyurethane or other high strength materials.
  • FIGS. 17 and 18 show a tubular element 5 structurally welded in a “A”-shape profile, generally indicated by the reference number 66 , to the boat bottom 2 .
  • the semirigid boat specifically designed as a service watercraft for short and middle range navigation, for disembarking and embarking tourists and passengers from/onto cruise and pleasure vessels, provides a lot of important advantages.
  • the boat according to the invention represents an “unsinkable” boat, since it cannot be practically perforated.
  • a further advantage consists of the enhancement of the inner width, the projected width being the same, thereby increasing the passenger comfort and the payload volume, as it is clearly shown in FIG. 12 .
  • the semirigid boat according to the present invention provides an increase of the free edge without substantially raising its center of mass, which allows to bring to a higher level the walking deck, thereby allowing the possibility of forming a static self-empting well, as is clearly shown, in particular, in FIG. 12 .
  • the used materials, as well as the contingent size and shapes can be any, depending on requirements and the status of the art.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Laminated Bodies (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Table Devices Or Equipment (AREA)
  • Navigation (AREA)
US11/065,928 2004-02-26 2005-02-25 Semirigid boat for use as a service watercraft Abandoned US20050188909A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000341A ITMI20040341A1 (it) 2004-02-26 2004-02-26 Battello semirigido particolarmente studiato come natante di servizio
ITMI2004A000341 2004-02-26

Publications (1)

Publication Number Publication Date
US20050188909A1 true US20050188909A1 (en) 2005-09-01

Family

ID=34746707

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/065,928 Abandoned US20050188909A1 (en) 2004-02-26 2005-02-25 Semirigid boat for use as a service watercraft

Country Status (7)

Country Link
US (1) US20050188909A1 (de)
EP (1) EP1568598B1 (de)
AT (1) ATE348034T1 (de)
CA (1) CA2498153A1 (de)
DE (1) DE602005000320T2 (de)
ES (1) ES2279461T3 (de)
IT (1) ITMI20040341A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070235123A1 (en) * 2006-03-29 2007-10-11 Simpson Allen H Apparatus and methods for bonding carbon-carbon composites through a reactant layer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100647130B1 (ko) * 2006-05-19 2006-11-23 한일뉴즈주식회사 고속단정의 부력 장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060864A (en) * 1976-05-03 1977-12-06 Woodstream Corporation Boat construction incorporating flotation means
US5540169A (en) * 1993-02-08 1996-07-30 Jaddco Inc. Pontoons and pontoon vessel
US5647297A (en) * 1992-01-15 1997-07-15 Norseman Marine Products, Inc. Foam stabilized watercraft
US6860221B1 (en) * 2002-12-31 2005-03-01 William C Henderson Tubular boat having modular construction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA696555B (en) * 1968-09-19 1971-04-28 Dunlop Co Ltd Composite boat
DE2757241A1 (de) * 1977-03-11 1978-09-14 Semperit Gmbh Deckbrett fuer aufblasbare schwimmkoerper
US4161796A (en) * 1977-06-07 1979-07-24 Kransco Manufacturing, Inc. Monolithic polymer foam sailboat hull
IT1298793B1 (it) * 1998-03-25 2000-02-02 Fb Design Srl Imbarcazione multiscafo modulare componibile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060864A (en) * 1976-05-03 1977-12-06 Woodstream Corporation Boat construction incorporating flotation means
US5647297A (en) * 1992-01-15 1997-07-15 Norseman Marine Products, Inc. Foam stabilized watercraft
US5540169A (en) * 1993-02-08 1996-07-30 Jaddco Inc. Pontoons and pontoon vessel
US6860221B1 (en) * 2002-12-31 2005-03-01 William C Henderson Tubular boat having modular construction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070235123A1 (en) * 2006-03-29 2007-10-11 Simpson Allen H Apparatus and methods for bonding carbon-carbon composites through a reactant layer
US7922845B2 (en) 2006-03-29 2011-04-12 Honeywell International Inc. Apparatus and methods for bonding carbon-carbon composites through a reactant layer
US20110155323A1 (en) * 2006-03-29 2011-06-30 Honeywell International Inc. Bonding carbon-carbon composites through a reactant layer

Also Published As

Publication number Publication date
EP1568598A1 (de) 2005-08-31
DE602005000320D1 (de) 2007-01-25
ITMI20040341A1 (it) 2004-05-26
ES2279461T3 (es) 2007-08-16
DE602005000320T2 (de) 2007-07-12
CA2498153A1 (en) 2005-08-26
ATE348034T1 (de) 2007-01-15
EP1568598B1 (de) 2006-12-13

Similar Documents

Publication Publication Date Title
US5647297A (en) Foam stabilized watercraft
US5572944A (en) Boat having stern mounted swim platform
US4253209A (en) Sail boards
EP3922543A1 (de) Aufblasbares kajak
US6860221B1 (en) Tubular boat having modular construction
US3168751A (en) Pneumatic boat
EP1568598B1 (de) Halbsteifes Boot für Benutzung als Beiboot
US5483914A (en) Longitudinally extended floats
US20030114054A1 (en) Methods for manufacturing a structural sub-assembly and a gliding board; structural sub-assembly and gliding board made by such methods
US20070039536A1 (en) Watercraft with sound suppressed stepped hull
CA2454781A1 (en) A pontoon stabilized aluminum water craft
US6860223B2 (en) Self-propelled personal watercraft
US5676088A (en) Molded boat hull with integrally contained areas of localized reinforcement
US6786165B2 (en) Pontoon and method of making the same
US5634425A (en) Boat hull including moulded shell structure
GB2432814A (en) A sectional water craft incorporating tongue and groove joints
KR20130008897A (ko) 회전성형된 선체를 포함하는 플레져 보트
KR200324723Y1 (ko) 쌍동선
CA2871593C (en) Boat having buoyancy unit
JP2859148B2 (ja) ウォーターバラスト付きボート
RU196940U1 (ru) Надувная лодка с надувным дном высокого давления
US5005510A (en) High strength boat hull structure
US4913079A (en) Yacht
US6779477B2 (en) Cockpit systems and methods for kayaks
GB1591580A (en) Boat hulls

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE