WO2014174311A1 - Procédé de fabrication d'une structure - Google Patents

Procédé de fabrication d'une structure Download PDF

Info

Publication number
WO2014174311A1
WO2014174311A1 PCT/GB2014/051299 GB2014051299W WO2014174311A1 WO 2014174311 A1 WO2014174311 A1 WO 2014174311A1 GB 2014051299 W GB2014051299 W GB 2014051299W WO 2014174311 A1 WO2014174311 A1 WO 2014174311A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
blank
shell
rib
resin
Prior art date
Application number
PCT/GB2014/051299
Other languages
English (en)
Inventor
Roberto Corradi
Original Assignee
Northern Sound 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 Northern Sound Limited filed Critical Northern Sound Limited
Publication of WO2014174311A1 publication Critical patent/WO2014174311A1/fr

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
    • B63B3/14—Hull parts
    • B63B3/16—Shells
    • B63B3/18—Shells characterised by being formed predominantly of parts that may be developed into plane surfaces
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G17/00—Coffins; Funeral wrappings; Funeral urns
    • 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
    • B63B34/20—Canoes, kayaks or the like
    • 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
    • B63B34/20—Canoes, kayaks or the like
    • B63B34/21—Canoes, kayaks or the like characterised by constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B5/00—Hulls characterised by their construction of non-metallic material
    • B63B5/02—Hulls characterised by their construction of non-metallic material made predominantly of wood
    • B63B5/06—Decks; Shells

Definitions

  • the invention relates to a method of manufacturing a
  • Preferred embodiments of the invention provide a method of manufacturing a hollow shell (i.e. a thin-walled structure), such as the hull of a boat (e.g. a canoe or kayak) .
  • boats such as canoes are manufactured by using a large solid mould about which ribs are bent and set. The hull is than formed over the ribs, whilst still in place on the mould.
  • Each step in the process is time consuming and requires sufficient space for storage of the part- manufactured canoe formed on the mould.
  • this conventional method requires the manufacture and storage of the mould, which is useful for manufacturing a single configuration of canoe. If a differently sized or shaped canoe is required then it a further mould is needed, increasing cost and storage requirements.
  • Such a method can reduce storage requirements, increase the speed of production, and thus reduce costs.
  • Figure 1 shows a plan view of a sheet of material for forming a structure
  • Figure 2 shows a plan view of a blank for forming a
  • Figure 3 shows a perspective view of the blank of Figure 2 folded around the frame of Figure 2;
  • Figure 4 shows a manufactured structure
  • the structure 400 to be manufactured is a canoe.
  • the method may be used to manufacture other shells or thin-walled structures, such as hulls in general, or hulls for boats.
  • a first step in the method is to provide a sheet of material 10.
  • the sheet of material 10 may be provided in rectangular form and then cut to a suitable shape such as that shown in Figure 1.
  • the suitable shape may include shaped areas 115, designed to define an edge of the structure 400 to be formed .
  • the cutting process comprises a step of defining a plurality of cut-lines 110 (shown as dashed lines in Figure 1) .
  • the cut-lines 110 may be straight or curved depending on the desired shape of the structure 400 to be manufactured.
  • the cut-lines 110 are provided in pairs and define opposing edges 110a, 110b of notches 120 to be cut into the sheet of material 10.
  • each opposing edge 110a, 110b of at least one pair of opposing edges 110a, 110b are of equal length.
  • the pairs of cut-lines 110 extend from the outer periphery of the sheet 10 and meet at a point to thereby define a generally v-shaped region.
  • base region 111 of the sheet into which the cut-lines 110 preferably do not extend may also be defined.
  • the base region 111 is depicted in Figure 1 with dotted lines.
  • the cut-lines 110 extend from the periphery of the sheet 10. Preferably, the cut-lines 110 extend no further than the base region 111.
  • the sheet 10 is cut along the cut-lines 110 to provide a flat blank 100.
  • Blank 100 comprises a plurality of notches 120.
  • the notches 120 may be defined by opposing edges 110a, 110b of the blank 100, which are formed by cutting along the cut-lines 110.
  • the notches 120 are spaced around the periphery of the blank 100.
  • the notches 120 are generally v-shaped.
  • the region of the periphery of the blank between the notches 120 defines a plurality of side-portions 122 of the
  • the flat blank 100 of Figure 2 may be folded to form a three-dimensional shape.
  • the desired three-dimensional shape may comprise a substantially flat portion.
  • the substantially flat portion may form a floor of a canoe.
  • the blank 100 may be folded such that the two opposing edges 110a, 110b of each notch 120 meet to form a seam 125. Such a folding operation can thereby form a shell, which in the embodiment is in the shape of a hull of a canoe.
  • the shell has an elongate shape with two
  • edges 100a, 100b Preferably, the two edges 100a, 100b of the shell define an opening.
  • the opposing edges 110a, 110b meet along their entire lengths to define a seam extending from the edge of the shell up to the substantially flat portion.
  • the side-portions 122 may be folded away from the plane until the opposing edges 110a, 110b meet.
  • a base frame 200 is
  • the base frame 200 may be shaped to correspond to the desired shape of the substantially flat portion. Unlike the prior art, the base frame 200 need not be a large three-dimensional mould, but may be a plurality of beams or a flat board. Such a flat base frame 200 may be easily stored without large space requirements. Indeed a plurality of base frames 200 may be stackable.
  • the folding step may comprise folding the blank 100 around the base frame 200 such that the base region 111 remains substantially flat. Often material of the sheet 10 may be stiff enough that the shell formed by folding the blank 100 does not require any further support. However, when the sheet is flexible, and when forming particularly large shells, it may be preferable to provide support to enable the shell to retain its three- dimensional form.
  • a jig 250 may be provided to support the shell.
  • Jig 250 may comprise a plurality of movable posts 251 between which the shell is held after folding.
  • the jig 250 may be arranged such that the posts 251 are aligned with one or more seams 125 of the shell.
  • the jig 250 comprises a plurality of posts, each extending from a respective base.
  • the jig 250 may further comprises at least one strip 252 extending between a plurality of the posts 251.
  • the height of the strip 252 substantially corresponds with the edges 100a, 100b of the opening of the shell.
  • the strip 252 may aid in shaping the opening.
  • the shell may be structurally strengthened by affixing a rib 300 over one or more seams 125.
  • a plurality of ribs 300 are provided.
  • Each rib 300 may cover at least two seams 125.
  • a plurality of ribs 300 may be adhered over corresponding pairs of seams 125.
  • each rib 300 covers a first seam 125 extending from one edge 100a of the shell and a second seam 125 extending from the other edge 100b of the shell.
  • each rib 300 substantially covers the entire length of each of the one or more seams 125.
  • each rib 300 is adhered to the shell.
  • the ribs 300 are not bolted, riveted, sewn, or stapled to the shell.
  • the ribs 300 may be affixed to the inner surface and/or the outer surface of the shell.
  • the shell may be held within the jig 250 during the step of affixing the one or more ribs 300.
  • spacers 305 may optionally be provided between adjacent ribs 300. If provided, such spacers 300 may abut the edges of neighbouring ribs 300 to maintain a distance therebetween.
  • a cover may optionally be provided on one or both of the inner or outer surfaces of the shell and rib(s) .
  • the cover may comprise a cloth, impregnated with resin.
  • One way of applying a cloth on either the inner or outer surfaces of the shell and rib(s) involves: impregnating the cloth with resin to form a wet cloth; applying the wet cloth over a surface of the shell; placing the shell and cloth within a vacuum bag; evacuating atmosphere from the vacuum bag; and heating the resin.
  • the cover may protect the shell and rib(s) .
  • the structure has a pleasing appearance
  • the sheet of material 10 may be provided with an image printed thereon on the side forming the outer surface of the shell, and any covering on the outer surface of the shell is preferably at least translucent and most preferably substantially transparent.
  • structures are not shaped such that printing can be easily carried out .
  • the present method of manufacturing a structure has the advantage that printing may be carried out on the sheet material prior to folding.
  • embodiments of the invention result in a three-dimensional structure having a pleasing appearance.
  • the step of printing may be carried out before or after the step of cutting along the cut-lines 110.
  • the image may be printed in a distorted fashion such that it is correctly formed when the blank 100 is folded to form the shell. This may include printing the image such that it includes gaps corresponding to the notches 120.
  • the sheet of material 10 may comprise wood or laminated wood. Preferable woods are: soft woods; pale timbers;
  • the sheet of material 10 may comprise laminated wood with at least two laminations with the grain of the wood oriented differently in each of the two laminations.
  • the sheet of material 10 may have a thickness in the region of 1mm to 4mm.
  • the sheet of material 10 preferably has a thickness of about 2mm.
  • the rib(s) 300 may comprise wood or laminated wood.
  • Preferable woods are: soft woods; pale timbers; birch; ash; maple; sycamore; bamboo; pine; or spruce.
  • the rib(s) 300 may comprise laminated wood with at least two laminations with the grain of the wood oriented differently in each of the two laminations.
  • the ribs 300 may have a thickness in the region of 1.5mm to 4mm.
  • the ribs 300 preferably have a thickness of about 2mm.
  • the cloth may comprise one or more of: aramid; glass; carbon fibre; flax fibre; polyester and/or combination of these.
  • the cloth comprises at least: aramid and
  • polyester glass and carbon fibre; glass and polyester;
  • the resin may comprise one or more of: epoxy; vinyl ester; polyester resin; and/or bio-resins (such as flax-based resins and/or linseed-based resins) .
  • the method described above may be used in the manufacture of one of the following structures: a boat hull; a canoe; a kayak; or a coffin. Whereas in the embodiment described above, a wood or
  • laminated wood sheet may be provided, the inventor has discovered that other materials such as a closed cell foam may be used as the sheet. Closed cell foam is strong and light and therefore, advantageously, a sheet of material 10 comprising closed cell foam may remove the need for the ribs to cover the seams when the sheet is formed into a hull (although these may still be provided) .
  • ribs are provided, it is preferable to provide a cover on one or both of the inner or outer
  • the cover may comprise a cloth, impregnated with resin, as described above.
  • Closed cell foam also provides a suitable surface for printing prior to folding.
  • the sheet of material 10, when formed of closed cell foam may have a thickness in the region of 2mm to 25mm.
  • the sheet of material 10, when formed of closed cell foam may have a thickness in the region of 4mm to 20mm.
  • the sheet of material 10 most preferably has a thickness of about 10mm.
  • either one or both of the surfaces of the sheet may be printed on prior to folding, so that the inner and or the outer surfaces of the final structure may be decorative.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention porte sur un procédé de fabrication d'une structure. Des modes de réalisation préférés de l'invention portent sur un procédé de fabrication d'une coque creuse (à savoir, une structure à paroi mince), telle que la coque d'un bateau (par exemple, un canoë ou un kayak). L'invention porte également sur un procédé de fabrication d'un bateau, lequel procédé comprend les étapes consistant à : couper une pluralité d'encoches (120) à partir de la périphérie d'une feuille de matériau (10) de façon à former une ébauche (100), chaque encoche ayant deux bords opposés (110) ; plier l'ébauche sous une forme en trois dimensions de telle sorte que les deux bords opposés de chaque encoche se rencontrent de façon à former un raccord, formant ainsi une coque ouverte définissant la coque du bateau.
PCT/GB2014/051299 2013-04-26 2014-04-25 Procédé de fabrication d'une structure WO2014174311A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1307620.3A GB2513416A (en) 2013-04-26 2013-04-26 A method of manufacturing a structure
GB1307620.3 2013-04-26

Publications (1)

Publication Number Publication Date
WO2014174311A1 true WO2014174311A1 (fr) 2014-10-30

Family

ID=48626936

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2014/051299 WO2014174311A1 (fr) 2013-04-26 2014-04-25 Procédé de fabrication d'une structure

Country Status (2)

Country Link
GB (1) GB2513416A (fr)
WO (1) WO2014174311A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB154941A (en) * 1916-03-24 1920-12-16 Frank Samuel Pett Improvements in and relating to ships' life-boats, yachts and other vessels
GB167818A (en) * 1920-05-06 1921-08-08 Gustavus Emanuel Kastengren Reinforced concrete ship moulds
GB2024729A (en) * 1978-07-05 1980-01-16 Ludstroem C O S Boat hulls
US4714041A (en) * 1985-04-09 1987-12-22 Etat Francais Structure of surface effect ship with side walls
US4860682A (en) * 1988-06-10 1989-08-29 Gunderson Charles F Unitary-panel boat hull construction
FR2846934A1 (fr) * 2002-11-08 2004-05-14 Francis Prat Procede de realisation d'une structure tridimentionnelle telle qu'un bateau

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB393767A (en) * 1932-07-06 1933-06-15 Baden Fletcher Smyth Baden Pow Improvements in boat construction
FR771990A (fr) * 1934-04-19 1934-10-20 Procédé de construction navale

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB154941A (en) * 1916-03-24 1920-12-16 Frank Samuel Pett Improvements in and relating to ships' life-boats, yachts and other vessels
GB167818A (en) * 1920-05-06 1921-08-08 Gustavus Emanuel Kastengren Reinforced concrete ship moulds
GB2024729A (en) * 1978-07-05 1980-01-16 Ludstroem C O S Boat hulls
US4714041A (en) * 1985-04-09 1987-12-22 Etat Francais Structure of surface effect ship with side walls
US4860682A (en) * 1988-06-10 1989-08-29 Gunderson Charles F Unitary-panel boat hull construction
FR2846934A1 (fr) * 2002-11-08 2004-05-14 Francis Prat Procede de realisation d'une structure tridimentionnelle telle qu'un bateau

Also Published As

Publication number Publication date
GB201307620D0 (en) 2013-06-12
GB2513416A (en) 2014-10-29

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