CA1085682A - Catamaran type hull consisting of mountable sections - Google Patents
Catamaran type hull consisting of mountable sectionsInfo
- Publication number
- CA1085682A CA1085682A CA312,092A CA312092A CA1085682A CA 1085682 A CA1085682 A CA 1085682A CA 312092 A CA312092 A CA 312092A CA 1085682 A CA1085682 A CA 1085682A
- Authority
- CA
- Canada
- Prior art keywords
- hull
- sections
- section
- stern
- stem
- 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
- 230000003319 supportive effect Effects 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
- B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
- B63B1/121—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising two hulls
-
- 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
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/02—Hulls assembled from prefabricated sub-units
- B63B3/08—Hulls assembled from prefabricated sub-units with detachably-connected sub-units
- B63B2003/085—Multiple hull vessels, e.g. catamarans, assembled from detachably-connected sub-units
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Tires In General (AREA)
- Bridges Or Land Bridges (AREA)
- Body Structure For Vehicles (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Toys (AREA)
- Catching Or Destruction (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Abstract A catamaran type hull for a boat, especially a tender, consists of two interconnected hull bodies, the main part of the adjacent or inner longitudinal sides of which being lower than the outer longitudinal or rail sides thereof. Each hull body comprises two sections formed in such a way that one first of the two stern sections may be stored in the second stern section and one first of the two stem sections in the second stem section, the two stem sections thus nested together being storeable in the upper section of the stern sections thus nested together. The first stern hull section is somewhat longer than the second stern hull section and connected to a first stem hull section, which is shorter than the second stem hull section. The second shorter stern hull section is storeable in the longer stern hull section in an opposed relationship thereto. The two sections of each hull may be inter-connected by means of a dovetail joint with male and female members. The adjacent or inner longitudinal sides of the two hulls form a support for a longitudinal thwart, which is lower than the outer rail of the hull bodies and may be provided with a supportive float at its under-side.
Description
~ Kransell & Wennborg AB
LN
~85682 A catamaran type hull consisting of mountable sections The present invention relates to a catamaran type hull for a boat, especially a tender, consisting of mountable sections, comprising two interconnected hull bodies, the main part of the adjacent or inner longitudinal sides of which being lower than the outer longitudinal or rail sides thereof and forming a support for a thwart which is lower than the outer rail of the hull bodies.
A catamaran type hull of the above kind is described in sritish patent 1 423 566. In the disassembled condition, the two hull sections are nested together for the purpose of saving space when transporting or in case of non-use of the boat. However, also in the storing condition the two hull sections are relatively long and bulky. Thus, they cannot be placed in the trunk of a car.
In another known construction according to British patent 133 306 the two hull sections are hingedly connected together, so that in the storing condition the one hull section is folded over the other. The construction may in said condition be used as a store-room or the like.
However, the above-mentioned disadvantage does also in yet a greater extent apply to this construction.
~ )8568Z
French patent 1 214 075 describes a boat hull comprising two parts and having a transverse joint.
Another type of a sectioned catamaran type hull is described in US patent 3 883 909. These hull sections may not be nested together. The same applies to the catamaran type hull described in German patent 333 844.
In US patent 1 916 093 there is described a conventional boat hull, consisting of three sections, which, when the boa-t is assembledl are interlocked by transversal thwarts and which, when disassembled, may be nested together. In order to be seaworthy enough, such a construction requires a relatively broad mid-section, which leads to a corresponding demand for space when the boat is disassembled and the stern and stem sections are nested in the mid-section.
The object of the present invention is to provide a catamaran type hull of the kind set forth in the introduction, the sections being in the disassembled condition considerably less space-requiring than those hitherto known. The sections may consequently be trans-ported e.g. in the trunk of a car, in the cabin of a sail- or motor-boat or the like.
According to the present invention each hull body of the catamaran type hull comprises two sections formed in such a way that one of the two stern sections may be stored in the second stern section and one of the two stem sections in the second stem section, the two stem , .;
56~
sections thus nested together being storeable in the upper section of the stern sections thus nested together.
When the boat is stored or transported the four hull sections are short and narrow and do consequently require only a minimum of space. At the same -time, the sections are easily assembled to a stable and seaworthy boat.
One stern hull section is somewhat longer than the second stern hull section and connected to a first stem hull section, which is shorter than the second stem hull section. This unsymmetrical arrangement relatively a line, which is transversal to the longitudinal axis of the hull construction, gives the advantages, which are offered when the boat is transported, i.e. when the sections are nested together.
In this transport condition the second stern hull section, which is the shorter one, may be nested in the first stern hull section, which is the longer one, in an opposed relationship thereto. However, the two stem hull sections are suitably nested together, the smaller -one in the bigger one, turned in the same direction.
A rapid and reliable assembling of the hull construction is achieved if, in accordance with a preferred embodiment, the two sections of each hull body are interconnected by means of a dovetail joint with a r male and a female member. Further, such a jolnt enables a close fit of the two sections relatively each other.
- Suitably, the stern hull sections are provided with the .~: :
- . . . . . ~ . .
' ~8S68;~
male member of the dovetail joint and the stem hull sections with the female member thereof.
In order to facilitate the use of the catamaran type hull for its real purpose, the adjacent or inner longitudinal sides of the two hull bodies form a support for a longitudinal thwart, which is lower than the outer rail of the hull bodies. In such a case, no transversal thwart is required. One may comfor-tably be seated on the longitudinal thwart with one leg in each hull body.
In addltion, improved securi-ty may easily be gained by providing the underside of the longitudinal thwart with a plurality of supportive floats.
The two hull bodies may be fixed together in a suitable way, e.g. by means of screws or bolts. ~lowever, it is preferred that the two hull bodies, when the boat is assembled, be interconnected by means of at least one stern and one stem cross-bar, the arrangement preferably being such that the stern cross-bar is fixed to the outside of the hull bodies and the stem cross-bar to the outer rail of each hull body and to two adjacent or inner longitudinal side parts in front of the said main part of the inner sides, which is lower than each outer rail.
One embodiment of the invention will now be described in greater detail, reference being made to the accompanying drawings.
Figure 1 is a perspective view of a tender with a ., `:
- :.;. -.,. , ,;, - ,, --.. :, . .,. -.- - ~ . . . . - . - ... ... ... . , ~ ;.- . , ~8S68~
catamaran type hull according to the invention.
Figure 2 is a perspective view of the catamaran type hull with its four sections separa-ted from each other.
Figure 3 is a perspective view of the four hull sections being in the storing or transport condition nested together.
With reference to Figure 1 and 2, the catamaran type hull for a tender consists of two interconnected and, relatively the longitudinal axis of the tender, reversed hull bodies 1, 2. Each hull has an outer rail ld and 2d and an inner rail lc and 2c (Figure 2), the main part of which is lower than the outer rail.
Each hull body 1, 2 consists of a stern section la and 2a and a stem section lb and 2b, which are inter-connected by means of a dovetail joint with a male member 3 and a female member 4. The stern sections la and 2a may be compared with a trough or tub with four walls, whereas the stem hull sections lb and 2b may be compared with a correspondlng trough or tub with two side-walls and a rear wall. All of the hull sections widen somewhat upwards from a substantially plane bottom.
The one stern hull section la is somewhat longer . .
than the second hull section 2a. Consequently, the stem hull section lb, which is connected to the longer stern `~ hull section, is somewhat shorter than the second stem - hull section 2b.
:
. . .: . :- , .,. . ,, ~ - , ,................... - ~.: .. ;
, ` ' . f ., ~ ' ','., . .. . . ~ .. - . .. : ..
s~
As appears from Figure 1, the adjacent longitudinal or rail sides of the two hull bodies form a support for a longitudinal thwart 5, which is thus lower than the outer rail ld, 2d of the hull bodies. The two hull bodies 1 and 2 are interconnected by means of one stern and one stem cross-bar 9 and 10, the stern cross-bar 9 being fixed to the outside of the hull, i.e. resting against the stern of the hull bodies. The stem cross-bar 10 is by means of fittings 11 fixed to the outer rail ld, 2d of the hull bodies and rests against the stem part of the inner rail of the hull bodies, which part is in level with the outer rail.
setween the hull bodies there may be arranged one or more supportive floats tnot shown), which are preferably applied to the underside of the longitudinal thwart 5.
Figure 3 shows how the four hull sections, in the transport or storing condition, are nested to~ether. It appears that the second stern hull section 2a is stored in the longer stern hull section la but in an opposed relationship thereto. Further, the shorter stem hull section lb is stored in the longer stem hull section 2b and turned in the same direction as that of said hull section 2b, the two stem hull sections being stored in the shorter stern hull section 2a, as shown in Figure 3.
,"
It is obvious that,in the storing condition shown in Figure 3, the catamaran type hull requires a minimum of space, so that it may easily be kept in the trunk of a ` car, in the cabin of a motor- or sail-boat or the like.
., -:., . : . ., -: ;. ,, .. - :,:.,, ::. : . ,:, :,., ,, . -.
LN
~85682 A catamaran type hull consisting of mountable sections The present invention relates to a catamaran type hull for a boat, especially a tender, consisting of mountable sections, comprising two interconnected hull bodies, the main part of the adjacent or inner longitudinal sides of which being lower than the outer longitudinal or rail sides thereof and forming a support for a thwart which is lower than the outer rail of the hull bodies.
A catamaran type hull of the above kind is described in sritish patent 1 423 566. In the disassembled condition, the two hull sections are nested together for the purpose of saving space when transporting or in case of non-use of the boat. However, also in the storing condition the two hull sections are relatively long and bulky. Thus, they cannot be placed in the trunk of a car.
In another known construction according to British patent 133 306 the two hull sections are hingedly connected together, so that in the storing condition the one hull section is folded over the other. The construction may in said condition be used as a store-room or the like.
However, the above-mentioned disadvantage does also in yet a greater extent apply to this construction.
~ )8568Z
French patent 1 214 075 describes a boat hull comprising two parts and having a transverse joint.
Another type of a sectioned catamaran type hull is described in US patent 3 883 909. These hull sections may not be nested together. The same applies to the catamaran type hull described in German patent 333 844.
In US patent 1 916 093 there is described a conventional boat hull, consisting of three sections, which, when the boa-t is assembledl are interlocked by transversal thwarts and which, when disassembled, may be nested together. In order to be seaworthy enough, such a construction requires a relatively broad mid-section, which leads to a corresponding demand for space when the boat is disassembled and the stern and stem sections are nested in the mid-section.
The object of the present invention is to provide a catamaran type hull of the kind set forth in the introduction, the sections being in the disassembled condition considerably less space-requiring than those hitherto known. The sections may consequently be trans-ported e.g. in the trunk of a car, in the cabin of a sail- or motor-boat or the like.
According to the present invention each hull body of the catamaran type hull comprises two sections formed in such a way that one of the two stern sections may be stored in the second stern section and one of the two stem sections in the second stem section, the two stem , .;
56~
sections thus nested together being storeable in the upper section of the stern sections thus nested together.
When the boat is stored or transported the four hull sections are short and narrow and do consequently require only a minimum of space. At the same -time, the sections are easily assembled to a stable and seaworthy boat.
One stern hull section is somewhat longer than the second stern hull section and connected to a first stem hull section, which is shorter than the second stem hull section. This unsymmetrical arrangement relatively a line, which is transversal to the longitudinal axis of the hull construction, gives the advantages, which are offered when the boat is transported, i.e. when the sections are nested together.
In this transport condition the second stern hull section, which is the shorter one, may be nested in the first stern hull section, which is the longer one, in an opposed relationship thereto. However, the two stem hull sections are suitably nested together, the smaller -one in the bigger one, turned in the same direction.
A rapid and reliable assembling of the hull construction is achieved if, in accordance with a preferred embodiment, the two sections of each hull body are interconnected by means of a dovetail joint with a r male and a female member. Further, such a jolnt enables a close fit of the two sections relatively each other.
- Suitably, the stern hull sections are provided with the .~: :
- . . . . . ~ . .
' ~8S68;~
male member of the dovetail joint and the stem hull sections with the female member thereof.
In order to facilitate the use of the catamaran type hull for its real purpose, the adjacent or inner longitudinal sides of the two hull bodies form a support for a longitudinal thwart, which is lower than the outer rail of the hull bodies. In such a case, no transversal thwart is required. One may comfor-tably be seated on the longitudinal thwart with one leg in each hull body.
In addltion, improved securi-ty may easily be gained by providing the underside of the longitudinal thwart with a plurality of supportive floats.
The two hull bodies may be fixed together in a suitable way, e.g. by means of screws or bolts. ~lowever, it is preferred that the two hull bodies, when the boat is assembled, be interconnected by means of at least one stern and one stem cross-bar, the arrangement preferably being such that the stern cross-bar is fixed to the outside of the hull bodies and the stem cross-bar to the outer rail of each hull body and to two adjacent or inner longitudinal side parts in front of the said main part of the inner sides, which is lower than each outer rail.
One embodiment of the invention will now be described in greater detail, reference being made to the accompanying drawings.
Figure 1 is a perspective view of a tender with a ., `:
- :.;. -.,. , ,;, - ,, --.. :, . .,. -.- - ~ . . . . - . - ... ... ... . , ~ ;.- . , ~8S68~
catamaran type hull according to the invention.
Figure 2 is a perspective view of the catamaran type hull with its four sections separa-ted from each other.
Figure 3 is a perspective view of the four hull sections being in the storing or transport condition nested together.
With reference to Figure 1 and 2, the catamaran type hull for a tender consists of two interconnected and, relatively the longitudinal axis of the tender, reversed hull bodies 1, 2. Each hull has an outer rail ld and 2d and an inner rail lc and 2c (Figure 2), the main part of which is lower than the outer rail.
Each hull body 1, 2 consists of a stern section la and 2a and a stem section lb and 2b, which are inter-connected by means of a dovetail joint with a male member 3 and a female member 4. The stern sections la and 2a may be compared with a trough or tub with four walls, whereas the stem hull sections lb and 2b may be compared with a correspondlng trough or tub with two side-walls and a rear wall. All of the hull sections widen somewhat upwards from a substantially plane bottom.
The one stern hull section la is somewhat longer . .
than the second hull section 2a. Consequently, the stem hull section lb, which is connected to the longer stern `~ hull section, is somewhat shorter than the second stem - hull section 2b.
:
. . .: . :- , .,. . ,, ~ - , ,................... - ~.: .. ;
, ` ' . f ., ~ ' ','., . .. . . ~ .. - . .. : ..
s~
As appears from Figure 1, the adjacent longitudinal or rail sides of the two hull bodies form a support for a longitudinal thwart 5, which is thus lower than the outer rail ld, 2d of the hull bodies. The two hull bodies 1 and 2 are interconnected by means of one stern and one stem cross-bar 9 and 10, the stern cross-bar 9 being fixed to the outside of the hull, i.e. resting against the stern of the hull bodies. The stem cross-bar 10 is by means of fittings 11 fixed to the outer rail ld, 2d of the hull bodies and rests against the stem part of the inner rail of the hull bodies, which part is in level with the outer rail.
setween the hull bodies there may be arranged one or more supportive floats tnot shown), which are preferably applied to the underside of the longitudinal thwart 5.
Figure 3 shows how the four hull sections, in the transport or storing condition, are nested to~ether. It appears that the second stern hull section 2a is stored in the longer stern hull section la but in an opposed relationship thereto. Further, the shorter stem hull section lb is stored in the longer stem hull section 2b and turned in the same direction as that of said hull section 2b, the two stem hull sections being stored in the shorter stern hull section 2a, as shown in Figure 3.
,"
It is obvious that,in the storing condition shown in Figure 3, the catamaran type hull requires a minimum of space, so that it may easily be kept in the trunk of a ` car, in the cabin of a motor- or sail-boat or the like.
., -:., . : . ., -: ;. ,, .. - :,:.,, ::. : . ,:, :,., ,, . -.
Claims (4)
1. A catamaran type hull for a boat, especially a tender, consisting of mountable sections, comprising two interconnected hull bodies, the main part of the adjacent or inner longitudinal sides of which being lower than the outer longitudinal or rail sides thereof and forming a support for a thwart, which is lower than the outer rail of the hull bodies, characterized in that each hull body comprises two sections, the one stern hull section of which is somewhat longer than the second stern hull section and connected to a first stem hull section, which is shorter than the second stem hull section, said second stern hull section being storeable in the first stern hull section in an opposed relation-ship thereto, and one of the two stem hull sections being storeable in the second stem hull section in the same direction as said section, the two stem sections thus nested together being storeable in the upper section of the stern sections thus nested together.
2. A hull according to claim 1, the two sections of each hull being interconnected by means of a dovetail joint with a male and a female member, characterized in that the stern hull sections are provided with the male member of the joint and the stem hull sections with the female member thereof.
3. A hull according to claim 1, characterized in that the adjacent longitudinal or rail sides form a support for a longitudinal thwart, which is lower than the outer rail of the hull bodies.
4. A hull according to claim 1, characterized in that the longitudinal thwart is provided with a supportive float at its underside.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7710761-3 | 1977-09-26 | ||
| SE7710761A SE408043B (en) | 1977-09-26 | 1977-09-26 | INSTALLABLE PARTS EXISTING CATAMARANT TYPE BODY FOR BAT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1085682A true CA1085682A (en) | 1980-09-16 |
Family
ID=20332373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA312,092A Expired CA1085682A (en) | 1977-09-26 | 1978-09-26 | Catamaran type hull consisting of mountable sections |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1085682A (en) |
| DE (1) | DE2841670A1 (en) |
| FR (1) | FR2403928A1 (en) |
| GB (1) | GB2004505B (en) |
| SE (1) | SE408043B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8621141U1 (en) * | 1986-08-07 | 1987-01-02 | Guergen, Karlheinz, 21266 Jesteburg | Hull for a sailing vessel, especially a catamaran |
| DE3818171A1 (en) * | 1988-05-28 | 1989-12-07 | Riehle Hans Martin | Demountable boat |
| GB2366768A (en) * | 2000-09-13 | 2002-03-20 | Paul Anthony Stanney | Boat formed from sections which stack or nest together when not in use |
| GB2393425B (en) * | 2002-09-26 | 2006-05-31 | Guy Nigel Mercer | Catamaran with detachably connected hulls |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1916093A (en) * | 1931-02-05 | 1933-06-27 | Cormier Oliver | Boat |
| US3613136A (en) * | 1969-10-03 | 1971-10-19 | Joseph A Cogliano | Catamaran |
| DE2203268A1 (en) * | 1972-01-25 | 1973-08-02 | Johannes Bakker | KIT CONSISING OF A NUMBER OF PARTS, IN PARTICULAR FOR ASSEMBLING VEHICLES OR VEHICLES |
| US3822427A (en) * | 1973-02-21 | 1974-07-09 | Raymond Lee Organization Inc | Telescoping rigid boat |
| GB1423566A (en) * | 1973-06-09 | 1976-02-04 | Wilkinson T | Boats |
| US3883909A (en) * | 1973-10-05 | 1975-05-20 | Vervcraft Inc | Sectional small water craft |
| US3916468A (en) * | 1974-04-08 | 1975-11-04 | Yves E Tetreault | Sectional canoe |
-
1977
- 1977-09-26 SE SE7710761A patent/SE408043B/en not_active IP Right Cessation
-
1978
- 1978-09-20 GB GB7837499A patent/GB2004505B/en not_active Expired
- 1978-09-25 DE DE19782841670 patent/DE2841670A1/en active Granted
- 1978-09-26 FR FR7827498A patent/FR2403928A1/en active Granted
- 1978-09-26 CA CA312,092A patent/CA1085682A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2403928A1 (en) | 1979-04-20 |
| DE2841670C2 (en) | 1987-07-16 |
| GB2004505B (en) | 1982-01-27 |
| SE408043B (en) | 1979-05-14 |
| FR2403928B1 (en) | 1983-11-04 |
| GB2004505A (en) | 1979-04-04 |
| SE7710761L (en) | 1979-03-27 |
| DE2841670A1 (en) | 1979-04-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 19970916 |