US3771180A - Collapsible portable boat and its method of assembly - Google Patents
Collapsible portable boat and its method of assembly Download PDFInfo
- Publication number
- US3771180A US3771180A US00178741A US3771180DA US3771180A US 3771180 A US3771180 A US 3771180A US 00178741 A US00178741 A US 00178741A US 3771180D A US3771180D A US 3771180DA US 3771180 A US3771180 A US 3771180A
- Authority
- US
- United States
- Prior art keywords
- boat
- flat
- blank
- stabilizer
- sides
- 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 - Lifetime
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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
- B63B7/02—Collapsible, foldable, inflatable or like vessels comprising only rigid parts
- B63B7/04—Collapsible, foldable, inflatable or like vessels comprising only rigid parts sectionalised
-
- 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
- B63B2007/003—Collapsible, foldable, inflatable or like vessels with foldable members
Definitions
- ABSTRACT A light weight, high buoyancy boat is presented which may be collapsed into a compact body and which is made of corrugated thermo-plastic synthetic resin sheets and method of assembly'thereof.
- the present invention aims to provide a portable boat which may be assembled easily by folding the prefolded line from the corrugated sheet of thermoplastic synthetic resin.
- a further aim of the invention is a method of assembly of the boat.
- This boat when provided with reinforcing materials, oar locks, an outboard engine or the like removably may be carried by hand to any place.
- the present invention further aims at providing a boat with an increased bouyancy because of the provision ofa central stabilizer or float in the direction of the bottom and with an extremely high stability in all the directions of stern, stem or bow, both sides, bottom and top as the water enters between the projecting parts of the float or stabilizer and the bottom of the boat. This high stability is particularly advantageous when used on the water with considerable waves.
- the present invention will become more apparent from the accompanying drawings and the following description.
- FIGS. 1 to 4 show the process of assembling the boat according to this invention, and more in particular;
- FIG. 1 is a perspective view of a corrugated sheet from which the main body of the boat is assembled
- FIG. 2 is a perspective view showing the boat as assembled
- FIG. 3 is a perspective view of the corrugated sheet for the floats in the folded state
- FIG. 4 is a perspective view of the corrugated sheet for the float before it is folded
- FIG. 5 is a general perspective view of the boat as completely assembled
- FIG. 6 is a cross sectional view taken along the line VIVI in FIG. 5;
- FIG. 7 is a partially enlarged view of the part A of FIG. 6; f
- FIGS. 8 to 11 are the diagrams showing the process of assembly of a boat in another embodiment of this invention and respectively corresponding to FIGS. 1 to 4;
- FIG. 12 is a cross sectional view taken along the line XII XII in FIG. 9.
- thermo-plastic synthetic resin sheets are in corrugated form comprising two layers with a space and longitudinal ribs therebetween and made of polypropylene, polystyrene or the like which is easy to inject or to extrude and has considerable resistance against compression, bend-.
- the creases (12) and (22) form the area of a side (40) and a bottom (50) while (13), (23) and (14), (24) form the stem or bow (60) while (13), (23) and (15), (25) form the stern
- the hatched part are those that are folded on the outside of the boat, the portions indicated by the dotted line indicating the crease for folding. It is however possible to fold the said part into the inside of the boat.
- two sheets (10), (20) are used for composing the main body by somewhat shifting one in the direction of the ships side X X (FIG. 5).
- the reason for a plurality of the sheets or blanks is to impart a high buoyancy to the main body or hull, and piling the two with their centers shifted in one direction is to facilitate folding of the side edges (18), (2 8) easily.
- the hatched part is folded toward the outside direction of the boat, the side edges (16) and (26) are heated and fuse welded to form the bow (60) of FIG. 5.
- the edges (17) and (27) are heated and fuse welded to form the stern. It is possible to obtain a quite sturdy bow and stern if such fixing or fastening means as rivets, bolts and the like are used on the folding sections at the bow and the stern and on the edges of the sides of the boats. (FIG. 7). It is possible to form a bulbous type bow instead of an angular type as shown in the drawings.
- Reinforcing materials (41) may be provided on the inner sides of the bow and the stern of the boat thus assembled in order to prevent the sides (40), (40) to bend inwardly along the folding lines (12), (22).
- the reinforcements (41) may be of the same material as the main body of the boat or of reinforced plastic or oflight weight metal such as aluminum. Said reinforcement (41) is preferably adjacent to the folding line (indicated by dotted line in FIG. 5) for carrying the same so as to contribute toward the strength of the boat.
- the reinforcements (41) were provided at two parts.
- the two longitudinal sides (18) (28) of the sheet are fixed or fastened by bolts or the like after heating and fuse welding the parts that have been folded inwardly or outwardly so as to form the edge of the boat.
- Oar locks (42) of rubber may be attached on two edges thus formed, but they are not necessary when the craft is used as a canoe.
- An outboard engine may be arbitrarily provided either at the bow (60) or at the stern (70).
- a float or central stabilizer (30) made of the same material as the main body of the boat may be assembled in such a way that the corrugation in the longitudinal direction thereof is in a perpendicular relation to that of the sheets (20) for the main body or hull so as to achieve an almost perfect leakage prevention into the spaces within the sheets or blanks.
- the manner in which the sheets are arranged is shown in FIG. 5 in a partial fragment al view of the surface of the sheet.
- the sheet or blank (30) for the float or central stabilizer is pressed with the creases for folding the boat (FIG. 4) in the like mannerfor the sheet or blank of the main body.
- the sheet or blank is folded as shown in FIG. 3, attached to the side of the body or hull, heated, fuse welded and riveted or fastened to secure the contacts of the outside of the sides (40), the bottom (50) and the contacting surface of the said sheet or blank (30).
- the edges (31) of the sheet (30) are intercepted as the edges (18), (28) of the side of the boat are folded and riveted or fastened by the rivet or fastener (43) so as to form one body (FIG.
- the float or central stabilizer provided with projections (80), (80) projecting downwardly from the bottom is attached to the main body or hull of the boat.
- the shape of the float or stabilizer is not limited to the one shownin FIGS. 3, 5 and 6 and any shapes so long as they project downwardly from the bottom are acceptable.
- the reinforcing materials (41) are removed first and the parts forming the bow and the stern areopened up in the outward directions.
- the sides (40), (40) are automatically pulled toward the inside 'by the creases (12), (22).
- the bottom (50) is then folded along the creases (11), (21) so that the said folding creases will move upwardly while the sides move downwardly and the boat is folded in a symmetrical folding position in respect of the center line Y Y in FIG. 5.
- the float is at the same time folded and piled together toward the inside at the points indicated by the dotted line in FIG. 5.
- the completely reverse order may be employed when the boat is being prepared for use on the water.
- a two seater boat according to this invention has a buoyancy equivalent of a four seater and that its weight is extremely light compared to the weight of a rubber boat which is approximately kg when seating one person and is therefore extremely suitable for carrying by hand.
- the mechanical properties of the sheet as shown in Table l have been confirmed to be such that the boat made of the same is quite safe.
- FIGS. 8 to 12 Another embodiment of the present invention is now explained, references being made to FIGS. 8 to 12.
- the method of assembly and the structure thereof being approximately the same as those of the first embodiment of the present invention, the description thereof is being eliminated.
- the reference numerals used in the drawings are in three digits and those identifying the identical or corresponding parts in the two embodiments have the identical numbers in the last two digits.
- the embodiment in FIGS. 8 to 12 is characterized in that only one sheet of material is used and that the bow is bulbous and that the shape of the float is unique.
- a crease (114) marking the hatched part to be folded inside is pressed on the edge part (116) of the corrugated sheet of thermo-plastic synthetic resin.
- the hatched part is folded either inwardly or outwardly and the edges of the folded parts are brought together to form a bulbous bow as shown in FIG. 9.
- the stern may be formed in the like manner when the craft is to be used as a canoe.
- the stem of the embodiment as shown in FIG. 9 shows that the edge part (117) is folded inwardly, which is the reverse of the first embodiment.
- the reinforcing materials (141) are attached after the boat is thus assembled which is made of the same material as the said sheet and formed in a hollow square post. Into the hollow part thereof is inserted a piece bent in a shape of V so as to increase the resistance against the bending force.
- the reinforcement made of the same thermo-plastic resin is more preferable from the economical point of view and from the buoyancy.
- a plate (144) cut out of the same material should preferably be placed within the boat in order to still reinforce the bottom of the boat.
- a float or stabilizer folded in the manner as shown in FIG. 10 and made from the same material as the main body of the boat is attached to the boat thus assembled.
- the projecting parts (180) project in the oblique direction downwardly in the right and left directions in respect of the boat bottom so as to achieve higher stability against the'rolling in respect of the direction X X compared to.the embodiment shown in FIG. 6.
- the method of attaching the float (130) to the main body is substantially the same as in the first embodiment.
- the present invention as hereinbefore described provides a boat which may be easily assembled by pressing creases for folding by a simple pressing process or manually on the thermo-plastic synthetic resin corrugated sheet cut out in an arbitrary size and by adhering the edges thereof by heatingand welding and/or rivetting. Moreover, a float or stabilizer for improving buoyancy, strength and stability may easily be attached thereto.
- a float or stabilizer for improving buoyancy, strength and stability may easily be attached thereto.
- the float provided projectingly extending from the bottom not only increases buoyancy, but contributes greatly toward the stability in the directions of X X, Y Y, and Z Z as shown in FIG. 5 as the water comes into the spaces between the float and the bottom. (See FIGS. 6, (34) (34), 12 (134) (135). This advantage will prove extremely valuable when the boat is used on the wavy seas.
- the boat shown in the drawings has a float or stabilizer of which the length is shorter than the length of the main body of the boat, but it is quite easy to provide a float of identical length with the boat.
- Assembly of blanks for forming a collapsible structure comprising a. at least one body forming blank which comprises a flat top layer, a flat bottom layer, and a plurality of rib members connecting said top layer to said bottom layer; a first crease impressed in the center of said body forming blank running longitudinally from one end to the other end of said blank in the same direction as said rib members; said blank being creased around its periphery so as to form a center portion and flaps adapted to be folded upward to form the sides of said structure; and
- At least one stabilizer blank which comprises a flat top layer, a flat bottom layer, and a plurality of rib members connecting said top layer to said bottom layer; two central creases running longitudinally from one end to the other end of the stabilizer blank defining a central flat stabilizer area; two bottom surfaces adajcent each of said central creases, each of said bottom surfaces having at least one crease running longitudinally from one end to the other end of said bottom surface; and two outermost side portions adjacent each of said bottom surfaces and adapted to be fastened to the flaps of the body forming blank when folded upward forming the sides of said collapsible structure.
- each of said bottom surfaces includes a single crease running longitudinally from one end to the other end of said bottom surface.
- each of said bottom surface includes two creases running longitudinally from one end to the other end of said bottom surface.
- a collapsible boat which comprises a. a hull comprising a central body area formed from at least one body forming blank having flaps which are foldable upwardly along each end and side to form sides,-stern and bow areas of said hull, said body forming blank comprising a flat top layer, a flat bottom layer, and a-plurality of rib members connecting said top layer to said bottom layer; and
- a central stabilizer connected to the bottom of said hull and extending downwardly forming two bottom surfaces having each an outermost side portion extending upwardly and adapted to be fastened to the flaps forming each side of said hull, said central stabilizer comprising a flat top layer, a flat bottom layer, and a plurality of rib members connecting said top layer to said bottom layer.
- a collapsible boat according to claim 5, wherein said central stabilizer comprises a substantially rectangular flat area, a substantially vertical connecting panel on each side of said flat area adapted to be oriented at an angle to the flat area, a horizontal stabilizing panel connected along the complete length of each of said connecting panels, an outer side panel secured to each of said horizontal stabilizing panel in substantially vertical orientation and adapted to be secured to the sides of the hull.
- a collapsible boat according to claim 5, wherein said central stabilizer comprises a substantially rectangular flat area, a connecting panel on each side of said flat area adapted to be oriented at an angle to the flat area, an outer side panel secured along the complete length of each said connecting panel forming a substantially V-shaped member therewith and adapted to be secured to the sides of the hull.
- Method of making a collapsible boat which comprises a. forming at least one body forming blank having a flat top layer, a flat bottom layer, and a plurality of rib members connecting said top layer to said bottom layer, impressing a first crease in the center of said body forming blank running longitudinally from one end to the other end of said blank in the same direction as said rib members, creasing said blank around its periphery so as to form a center portion and flaps adapted to be folded upward to form the sides of the boat;
- a flat bottom layer and a plurality of rib members connecting said top layer to said bottom layer, impressing two central creases running longitudinally from one end to the other of the stabilizer blank, defining a central flat stabilizer area, impressing at least two creases on either side of said central flat stabilizer area defining two bottom surfaces adjacent said central flat stabilizer area and two outermost side portions adjacent said bottom surfaces and adapted to be fastened to the flaps of the body forming blank when folded upward to form the sides of the boat;
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Toys (AREA)
- Tents Or Canopies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Instructional Devices (AREA)
- Revetment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP46006362A JPS5119232B1 (fr) | 1971-02-15 | 1971-02-15 | |
DE2229933A DE2229933C3 (de) | 1971-02-15 | 1972-06-20 | Faltbares Boot |
Publications (1)
Publication Number | Publication Date |
---|---|
US3771180A true US3771180A (en) | 1973-11-13 |
Family
ID=61021966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00178741A Expired - Lifetime US3771180A (en) | 1971-02-15 | 1971-09-08 | Collapsible portable boat and its method of assembly |
Country Status (7)
Country | Link |
---|---|
US (1) | US3771180A (fr) |
JP (1) | JPS5119232B1 (fr) |
AU (1) | AU465873B2 (fr) |
DE (1) | DE2229933C3 (fr) |
FR (1) | FR2125834A5 (fr) |
GB (1) | GB1357945A (fr) |
NL (1) | NL154970B (fr) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4225551A (en) * | 1977-01-20 | 1980-09-30 | Robert Gault | Boat hulls |
US4362519A (en) * | 1977-01-20 | 1982-12-07 | Robert Gault | Boat hulls |
US6615762B1 (en) * | 2001-08-23 | 2003-09-09 | William S. Scott | Foldable boat with light weight hull construction system |
US20070119853A1 (en) * | 2005-11-29 | 2007-05-31 | Wagenknecht Charles M | Inverting leak-proof floating container support |
US20080006198A1 (en) * | 2006-06-24 | 2008-01-10 | Joseph Angelini | Boat foldable into a compact self-contained shape |
US20080134953A1 (en) * | 2005-11-29 | 2008-06-12 | Samuel James Wagenknecht | Stabilizing openings for corrugated plastic water craft floor |
US20090044743A1 (en) * | 2005-11-29 | 2009-02-19 | Charles Maxwell Wagenknecht | Leak proof self securing container from single sheet |
KR101207353B1 (ko) | 2012-04-09 | 2012-12-04 | 주식회사 엔에스마린 | 접이식 보트 |
GB2522218A (en) * | 2014-01-16 | 2015-07-22 | Tradestock Ltd | A convertible article |
WO2017055621A1 (fr) * | 2015-10-01 | 2017-04-06 | Onak Bvba | Embarcation pliable |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4911095A (en) * | 1988-03-29 | 1990-03-27 | Kaye Alex R | Collapsible boat with removable transom panel |
GB8823586D0 (en) * | 1988-10-07 | 1988-11-16 | Matthews K R | Collapsible boat |
AU602851B3 (en) * | 1990-03-20 | 1990-08-31 | James Leslie Sampson | Improvements to toy boats |
ZA933767B (en) * | 1992-06-05 | 1993-12-30 | Alex R Kaye | Collapsible boat |
CN104129471B (zh) * | 2014-08-13 | 2017-01-25 | 哈尔滨固泰电子有限责任公司 | 可拆装式游艇 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2028543A (en) * | 1934-01-09 | 1936-01-21 | Goldberg Victor | Toy boat |
US2969551A (en) * | 1957-08-06 | 1961-01-31 | Stanley R Snider | Boat |
US3060464A (en) * | 1958-10-07 | 1962-10-30 | Rolf A Robison | One-piece boat |
US3111924A (en) * | 1961-06-27 | 1963-11-26 | Ecroyd John Wightman | Water-craft |
US3880429A (en) * | 1973-07-27 | 1975-04-29 | Raymond Lee Organization Inc | Game board, attachable game pieces and carrying case |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS446217Y1 (fr) * | 1964-04-22 | 1969-03-06 |
-
1971
- 1971-02-15 JP JP46006362A patent/JPS5119232B1/ja active Pending
- 1971-09-08 NL NL717112382A patent/NL154970B/xx unknown
- 1971-09-08 US US00178741A patent/US3771180A/en not_active Expired - Lifetime
- 1971-09-13 GB GB4256671A patent/GB1357945A/en not_active Expired
- 1971-09-13 AU AU33371/71A patent/AU465873B2/en not_active Expired
- 1971-09-14 FR FR7133076A patent/FR2125834A5/fr not_active Expired
-
1972
- 1972-06-20 DE DE2229933A patent/DE2229933C3/de not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2028543A (en) * | 1934-01-09 | 1936-01-21 | Goldberg Victor | Toy boat |
US2969551A (en) * | 1957-08-06 | 1961-01-31 | Stanley R Snider | Boat |
US3060464A (en) * | 1958-10-07 | 1962-10-30 | Rolf A Robison | One-piece boat |
US3111924A (en) * | 1961-06-27 | 1963-11-26 | Ecroyd John Wightman | Water-craft |
US3880429A (en) * | 1973-07-27 | 1975-04-29 | Raymond Lee Organization Inc | Game board, attachable game pieces and carrying case |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4225551A (en) * | 1977-01-20 | 1980-09-30 | Robert Gault | Boat hulls |
US4362519A (en) * | 1977-01-20 | 1982-12-07 | Robert Gault | Boat hulls |
US6615762B1 (en) * | 2001-08-23 | 2003-09-09 | William S. Scott | Foldable boat with light weight hull construction system |
US20090044743A1 (en) * | 2005-11-29 | 2009-02-19 | Charles Maxwell Wagenknecht | Leak proof self securing container from single sheet |
US20080134953A1 (en) * | 2005-11-29 | 2008-06-12 | Samuel James Wagenknecht | Stabilizing openings for corrugated plastic water craft floor |
US20070119853A1 (en) * | 2005-11-29 | 2007-05-31 | Wagenknecht Charles M | Inverting leak-proof floating container support |
US8069809B2 (en) * | 2005-11-29 | 2011-12-06 | Samuel James Wagenknecht | Stabilizing openings for corrugated plastic water craft floor |
US20080006198A1 (en) * | 2006-06-24 | 2008-01-10 | Joseph Angelini | Boat foldable into a compact self-contained shape |
US7530322B2 (en) | 2006-06-24 | 2009-05-12 | Angelini Joseph A | Boat foldable into a compact self-contained shape |
KR101207353B1 (ko) | 2012-04-09 | 2012-12-04 | 주식회사 엔에스마린 | 접이식 보트 |
GB2522218A (en) * | 2014-01-16 | 2015-07-22 | Tradestock Ltd | A convertible article |
GB2522218B (en) * | 2014-01-16 | 2016-03-09 | Tradestock Ltd | A convertible article |
WO2017055621A1 (fr) * | 2015-10-01 | 2017-04-06 | Onak Bvba | Embarcation pliable |
BE1023527B1 (nl) * | 2015-10-01 | 2017-04-21 | Onak Bvba | Vouwbare vaartuigen |
US10266231B2 (en) * | 2015-10-01 | 2019-04-23 | Onak Bvba | Foldable watercraft |
Also Published As
Publication number | Publication date |
---|---|
GB1357945A (en) | 1974-06-26 |
AU3337171A (en) | 1973-03-22 |
NL154970B (nl) | 1977-11-15 |
DE2229933A1 (de) | 1974-01-10 |
NL7112382A (fr) | 1972-08-17 |
FR2125834A5 (fr) | 1972-09-29 |
DE2229933C3 (de) | 1975-04-10 |
JPS5119232B1 (fr) | 1976-06-16 |
DE2229933B2 (de) | 1974-08-15 |
AU465873B2 (en) | 1973-03-22 |
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