CA2485528A1 - Biomechanically correct pedal powered paddling system for small watercraft - Google Patents
Biomechanically correct pedal powered paddling system for small watercraft Download PDFInfo
- Publication number
- CA2485528A1 CA2485528A1 CA 2485528 CA2485528A CA2485528A1 CA 2485528 A1 CA2485528 A1 CA 2485528A1 CA 2485528 CA2485528 CA 2485528 CA 2485528 A CA2485528 A CA 2485528A CA 2485528 A1 CA2485528 A1 CA 2485528A1
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- Prior art keywords
- paddle
- pedal
- frame
- members
- drive
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H16/00—Marine propulsion by muscle power
- B63H16/04—Oars; Sculls; Paddles; Poles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H16/00—Marine propulsion by muscle power
- B63H16/08—Other apparatus for converting muscle power into propulsive effort
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H16/00—Marine propulsion by muscle power
- B63H16/08—Other apparatus for converting muscle power into propulsive effort
- B63H16/12—Other apparatus for converting muscle power into propulsive effort using hand levers, cranks, pedals, or the like, e.g. water cycles, boats propelled by boat-mounted pedal cycles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
The present invention relates to an accessory system simulating the biomechanical motion of manual paddling such as with a canoe or small boat. The system comprises: a watercraft attaching portion having width-adjusting members, an array of levers and members, paddle attaching members, a pedal system, and linkage therebetween, all forming a mechanical structure adapted to simulate the biomechanical motion commonly used by manual-propulsion watercraft operators.
Description
1T1'~~E OF THE I1WENTIt~N
BIOMECHANICALLY CORRECT PEDAL POWERED PADDLING
SYSTEM FOR SMALL WATERCRAFTS
FIELD OF SON
The present invention relates to an accessory system simulating the biomechanical motion of manual paddling such as with a canoe or small boat. The system comprises: a watercraft attaching frame having a width-adjustable joining portion, an array of levers and members, paddle s attaching members, a pedal system, and linkage therebetween, all forming a mechanical adapted to simulate the biomechaaicat motion commonly used by operators paddling a small watertxaft.
I~ACI~GROU~1'D OF THE iNVENTI(~N
For illustration purposes, the applicant will illustrate the use of the presem imiention 1o as used on a conventional canoe. However, it wdl be understood that the invention, as described, is equally ei~rive on small boats and similar watemxafts, which can commonly be propelled by use of conventional paddles.
The inventor sought to provide canoe operators with a system for not only propeniag a canoe using pedal power from one's legs, but also with the abi'Iity to easily disable said system 15 when not required, and particularly, a the biomechanical motion of canoe paddling thus optimizing water displacement, ma~tg the e$nrt of paddling optimally e~cient.
Furthermore the present invention provides impro~ in the art of pedal-propulsion systems designed for small Z
vvatercxaft. Most pedal propulsion systems aim to eliminate the need of manually paddling the watetcra8 by hand, or to replace electric or gas powered motors, which in turn drive propeller drives or paddle wheel assemblies. E~ng pedal powered propulsion devices for small watercraft are usually attached to the watercraft in a fashion so that it could be removed at a later time. However, s during the period of use, afloax in the water, the device is always attached in a way that in turn may Limit the flanbility of travel for the wateraaft. One such case is where the watercraft is required to traverse a narrow waterway or fixed obstacles in its path.
There are three basic categories of human-powered propulsion systems for small watercrafts, they are:
1o l. propeller dtiv~en, ii. paddle wheel driven, and iii. row-style driving devices.
Devices falling into categories (l) and (ii) develop problems with tangling of aquatic Plants, damage to aquatic plants and to equipment. Devices falling into csitegories (ii) and (iii) are is usually of a bulky nature and cumbersome, which take up space outside of the watercraft, in turn limiting the man~v~ability of said wat~craf~.
In summary devices of category (l), propeller driven, have the following problems;
- Pedal powered propeller drives are complicated and costly, 20 - They are heavy, and - They can danaage.and become tangled in aquatic plants.
Category ('>i) devices, paddle wheels, have the following probleana;
' 3 - Paddle wheels can grab aquatic plants and bt~ud, - Ely and exit into and out of the water surface by a paddle wheel is not efficient, - They are noisy, - They waste e~ae'rgy by splashing water outward from the wheel paddles, - Splash guards are required to keep the passengers dry, - They have a lower energy el~ci~cy, - They are heavy, and .
- Have a multipliaty of redundant paddles and structure to support them, l0 Category (iii) devices, rowing-style driving devices, have the following problems;
- They are efficient but take up a large space, thus reducing maneuverability, and - They are laravy due to the Stiuc~re required, Therefore, the applicant intends to overcome a majority of the problems associated.
with prior art human-powered propulsion system by providing a new improved biomechanically correct pedal powered paddling syst~n for small watercraf~s.
The appfic~nt is aware of in prior art to provide means of propelling small wat~xa&S using mechanically powered apparatuses.
An example of prior art may be had when referring to United States patent numb 5,584,732 of Owen, Dec. 17, 1996 depicting a part paddle attached to a mechanical linkage 2o device powered by foot pedals. However, the device fails to compare with the present ion in that it propels tlxr waxercraft using a fish tail motion know to be ine~cdent when adapted to a rigid body since it exerts a large portion of its force in a side to side motion.
' 4 Another example may be had in refe~g to Unity States patent 1,532,990 of Cs~gery, issued April 7, 1925, which teaches of a boat having a rotary paddle apparatus adapted to propel said boat by hand power. This device fads to compare with the present invention in that it does not simulate the biomechanical motion of human paddling, as does the present invention.
Another example may be had in referring to United States patent number 5,249,991 of Schinkel, issued October 5, 1993, which depicxs a manuauy opt propulsion device for $
canoe comprising generally of a rotary paddle arrangeanent power by hand, again failing in that it does not symulate the biomechanical motion of human paddling.
to s ~u~.y o~ ~ nwE~oN
It is thus the object of the present invention to provide canoe operators with a syst~n for not only propelling a canoe using pedal power from one's legs, but also with the ability to easily disable said system when not required, sail particularly, simulate the bioaxxhanical motion of Canoe paddling thus optimizing water displacem~t and e~ciency.
In one aspect of the imernion, the system symhesizes the natural manual paddle motion commonly used when paddling by hand.
In aaother aspect of the invention, the systean's biomechanically cowect simulation enhar~s the efficiency in power by reduang drag while increasing paddle aligmnent.
to In another aspect of the lion, the system of the present imrention can easily collapse when use thereof is not desired.
In another aspect of the imrention, flaw system can be quickly installed and removed from the watercraft in a mattes of minutes without making alterations or modifications to said waxer~.
Accordingly, the System of the present im~ntion provides canoe operators with a system for propelling a canoe using pedal power from one's legs, the ability to easily disable said system when not required, and partiarlarly, simulates the biom~echanical motion of canoe paddling thus optimizing water displaoemem a paddling e~caency.
' 6 BRIEF DESS:RI~'~,ON OF THE DRAWINGS
These and other advantages of the invention will become apparent upon reading the following brief description and upomefe~ring to the drawings in which:-FIGURE 1 is a left side elevation view of the orientationat path of the s biomecharnic~lly correct pedal powered paddling system for small watercxafts of the present invention.
FIGURE 2 is a left side elevation view of the lrio~chanically correct pedal powered paddling system for small watercrafts of the present iuve~ion in use.
FIGURE 3 is a cross-sectional view taken from Figure 4 of the biomechanically 1o correct pedal powered paddling system for small watercrafts of the present invention.
FIGURE 4 is a partial top plan view of the biomechanically correct pedal powered Paddling system for small watercxafts of the present invention.
FIGURE 5 is a partial rear perspective view from above of the biomechanica>ly correct pedal powemd paddling system for small waterca~afts of the presenx invemion.
i5 FIGURE 6 is a side elevation view of a paddle clamp of the biocally correct pedal poi paddling system for small watemrafts ofthe present invention in an opened position.
FIGURE 7 is a side elevation view of a paddle clamp of the biomechanically correct pedal powered paddling system for small wateTCrafts of the presem imrention in an closed position FIGURE 8 is a s~Cted view taken from Figure 1 of the frame clamp device of the 2o biomechanically correct pedal powered paddling system for small watercrafts of the present invention.
FIGURE 9 is a partial side elevation view of the biomechanically correct pedal powered paddling system for small watercrafts of the present im~tion in a collapsed position.
Wtule the ~hon is descn'bed m coryunchon with preferred ~Ilustrated embodiments, it will be understood that it is not int~ded to limit the invention to such embodiments.
On the copy, it is intended to cover all alternatives, modifications and equivalents as may be included within the spirit and scope of the invention as dei~ by the appended claims.
s io is DETAILED DESCRIPTIOhI OF THE PREFERRED EMBODIMENT' In the following description, similar features in the drawings have been given similar reference numerals.
'Ding to the drawings, in particular, Figure 1, which illustrates a left side elevation s view of the orienta~tional path of the biomechanicaUy correct pedal powered paddling system for small watercrafts of the present imrention wherein members 12 represent the paddle, and each member 12 is of equal length, numerical figures 2x to 9x (where x depict points a, b, and c) represent a fixed point on said paddle, where Xa (where X depicts 2, 3, 4... 9) r~resents the tip of th,e paddle, Xb represents the lower pivot camp fixed to a mid section of the paddle; and Xc represents the to upper pivot clamp also fixed to the upper section of said paddle.
A paddle crank having a no~rot~ional female end adap~tea to receive the male end of a d 'rne shaft, and a rotational end adapted to secx~re to a linkage attaching portion of the above paddle receiving portion rotates at a drive axis 11, and a swing lever rotates at a lever axis 10.
Upon following the path as illustrated in this Figure, ore can comprehend the 1s compound motion ge~sted by this dual a~-dual pivot me~Od of obtaining the biomechanically correct simulation of nat<ual paddling motion. The system of the present invention therefore promotes optimal paddle entry to and exit from tire water body 14 on which a canoe 16 is traveling.
Turning now to Figure 2, a left side ion view of the biomec~anically correct pedal powered paddling system for small vvatercrafts of the presem inv~ution in use comprising; a 2o waterrcraft ag frame 20, a frame extension 21, a vertical arm mernbeT 22, an swing lever 23, a diagonal support na~r 24, a paddle 25, a drive crank 26, a lower paddle clamp 27 and an upper paddle clamp Z8 witeran, the ~ attaching frame 20 fixedly attaches to the gunwale portion 17 by means of a turn screw clamp, the frame e~ension 21 is integral with the watercraft attaching frame 20, the vertical arm member 22 is pivotally attached to a rear bracket 30 integral with the frame extension 21 and pivotally engaged with the rear portion of the swing lever 23, the swig lever 23 is also pivotally engaged to the upper Paddle clamp 28, the diagonal support member 24 is pivotally attac~d to a front b31 and to an upper mid section of the vertical arm member 22 s thereby forming a structural triangle rigidly supporting said vertical arm member 22, the paddle 25 is held in place by mesas of the lower paddle clamp 27 and the upper paddle clamp 28, and one end of the drive crank 26 is non-rotationally engage to the outermost end of the pedal drive assembly, and its other end pivotally engaged to the lower paddle clamp 27.
In now to Figure 3, a cross'seGtional view taken from Figure 4 of the biomechanecally cmroct pedal powered paddling system for small watercrafts of the presem invention illusOrrating, in a different perspective, the assembly components of the system whe~eia, a watercraft attaching frame 20 is setxuedly yet releasably attached to the gunwale 17 of a small waxercraft such as a canoe 16 as illu~rated, using a turnrscrew type 40 thereby seauing said frame 20 from movement ax any axis in relation to the c~unoe 16. The watetcraft att~g frame 20 is is made to adjust to the varied width of coonal waxercxafts by mesas of slotted tongue members 32 adapted to slidably engage to each opposing frame member and secured to each other with bolts 33 thus creating a larger contact surface area thereby Preventing displacement between each frame member. The frame 20, formed in two minor opposite portions, each have a horizontal dal portion, a diagonal portion ending upwardly and outwardly from the oes~rai portion, and a horizontal clait~p portion, is so forn~d to allow sufficdent clearance for rotational movement of the pedal members of the pedal assembly and said flame 20 is irnegral in maintaining vertical and horizontal parallel alignment to both left and right sides in t to the alignment and shape of the watercxa$.
Two frame extension portions 21 extending re$rwardly from each upper outermost portion of said frame 20 integrally include a front bracket 31 and a tear bracket 30 wherein the front bracket 31 serves to rotationally attach the lower portion of a diagonal support 24, and the rear bracket 30 serves to also rotationally attach the lower portion of a vertical arm 22 on which the upper 5 portion of the diagonal support 24 in turn rotationally attaches to a perforation in the upper-mid section of the vertical m22 th~by resulting is a triangular ire formed between the frame extension 21, the vertical member 22 and the diagonal support 24. Pedal drive ions 36 having deep female end and a male end wherein the female end having a generslly square inner form is adapted to slidably but non-rotationally engage with the outer surface of the pedal drive 37, and to the male end of the pedal drive extension is partly threaded to accept a nut after traversing the crank arm Z6 thus preveat;mg rotational freedom of crank arm with pedal drive extension 36.
A swing lever Z3 having a perforation near each end, rotationally attaches at one end of said lever 23 to the uppermost perforation of the vertical member 22, and the opposing end of said lever 23 ~au~dly attached to pivoting member of the upper paddle clamp 28.
The upper paddle clsmap 28 ao~d lower paddle clamp 2'1 frictionally attach to a conventional paddle and said paddle clamps 28 and 27 comprise: a paddle receiving portion, a locking member, an axle member and a attaching portion.
Turning now to Figure 4, a partial top plan view of the biomechanicaily correct pedal powered paddling system for small watercra~fts of the present invention iitustranag the assembly components of the system comprising: a watercraft attaching frame 20 seau~dly yet releasably attached to tire gunwale 17 of a sa~ll watercisft such as a canoe 16 as illustrated. The watercraft attaching frame 20 is made to adjust to the varied width of conventional wat~ercrafts by means of slotted mufti tongue members 32 adapted to slidably en~ge to each opposing frame member and secured to each other with bolts 33 thus cxeating a larger contact area thereby preventing displacement between each frame member.
Two frame extension portions 21 extending rearwardly from each upper outermost portion of said frame ZO irneg~rally include a front bracket 31 and a rear bracket wherein the front bracket 31 serves to rotationally attach the lower portion of a diagonal support 24, and the rear bracket serves to also rotationally attach the lower portion of a vertical arm 22 on which the upper portion of the diagonal support 24 in turn rotationally attaches to a perforation in the upper mid section of the vertical meamber 22 thereby resulting is a triangular structure formed between the frame extension 21, the vertical member 22 and the diagonal support 24.
1o A drive creak 26 is nan-rotationally e~age to the outermost end of the pedal drive assembly, and its other end pivotally to the lower paddle clamp 27 thus, when rotational force is created by a paddler, the pedal assembi~r therebyr rotates the drive cxank 26, which in turn exerts a rotational force at an arm motion on upper paddle clamps 28 rotationally attached to the ends of the drive cr~mk 26. Said paddle clamps 27, when frictiona>iy attached to the lower mid portion of a convemional paddle 25, form a basis of the compound motion of the of the present imreation, which sy~ to natural motion of arm-powers paddling.
The upper paddle clamp 28 and lower paddle clamp 27 frictionally attach to a comrentional paddle and said paddle clamps 28 and 27 comprise: a paddle receiving portion, a locking mcmber, an axle her and a linkage attaching portion The pedal drive ions 35 2o having deep female end and a male end wherein the female end having a generally square inner form is adapted to slidably but non-rotationally e~age with the outer s~urfacx of the pedal drive 37, and the male end of the pedal drive extcnsion 36 is partly threaded to a~cxept a nut after traversing the crank arm 26 thus preveming rotational fr~dom of crank arm with pedal drive extension 36.
..
i2 Therefore, it can be understood that a paddler, seated (55) within the watercraft 16, places his fed one on each pedal 34 at the pedal drive assembly 37, and supports ldmse)f by holding the gunwales 17 of said watercraft 16, pedals as he would a bicycle to drive the attached crank arm 26, which is notably engaged to the lower mid section of a conventional canoe paddle 25 by means of a pivotal lower paddle clamps 27, and said canoe paddle 25 is pivotally to a swing lever 23 by means of a pivotal upper paddle clamp 28, which said upper paddle clamp 28 being attached to said swing leer 23 and sand swing lever 23 opposing end being pivotally attached to a vertical arm 22 supported by a diagonal support 24 thereby, when the drive crank 26 is rotated, the lower paddle clamp 27 simply moves in a continually rotational moveanent equal in radius to the cerner to lo oemer of both perforations in the drive crank 26, and the upper paddle clamp 28 move is thereby timibed to an arc of a tangent g~eraily equal to twice the radius of the crank arm 26.
Therefore, the combination of these movem~s for a compound action at the tip of a paddle 25 closely synthesizes the na~bu~a1 motion of conventional ann-powered paddling but is powe~d by the user's legs.
Figure 5, a partial perspective view from the rear of the biomechanically correct pedal powered paddling system fnr small watercrafts of the presem invention better illustrating the assembly of the present imre~on onto a canoe 16 whereas, a watercraft a~aching frame 20 seau~edly yet r~easably attached to the gunwale i'1 of said canoe 16. The frame 20 comprises two mirror opposite portions, each have a horizomai dal portion, a diagonal portion extending 2o upwardly and outwardly from the cal portion, and a horizontal clamp portion, is so foamed to allow su~cient clearance for rotational mod of the pedal m~nbers of the pedal assembly and said frame 20 is it~tegal in maintaining vertical and horimatal parallel alignment to both left and right sides in respect to the aiitgnment and shape of the watercraft. The frame 20 is made to adjust to the varied width of conventional watercrafts by means of slotted mufti-tongue members 32 adapted to slidably engage to each opposing frame member and secured to each other with bolts 33 thus creating a larger contact surface area thereby preventing displacement between each frame 20 member.
s A pedal drive assembly 37 having two foot pedals 34 both offset on the same plane and irnegrally attached to a drive member, which rotates on a horizontal axis perpendicular to the canoe's 16 length, a bearing portion 39 at each end distal from the foot pedals 34, drive extension members 36 having deep female end and a male end wherein the female end having a generally square inner form is adapted to slidably but non-rotationally engage with the outer surface of the to pedal drive 37, aad the male end of the pedal drive extension 36 is partly threaded to accept a nut after traversing the crank arm 26 thus preventing rotational freedom of cxank arm with pedal drive extension 36. Two frame extension portions 21 extending rt:~~rvvardly from each upper outernnost portion of said frame 20 imegraily include a front bracket 31 and a rear bracket wherein the front bracket 31 serves to rotationally attach the lower portion of a diagonal support 24, and the rear is bracket serves to also rotationally attach the lower portion of a vertical arm 22 on which the upper portion of the diagonal support 24 in turn rotationally attaches to a perforation in the upper-mid section of the vertical 22 thereby resulting is a triangular struct<u~e formed between the frame extension 21, the vertical member 22 and the diagonal support Z4.
A drive crank 26 is non-rotationally engage to the outermost end of the pedal drive 2o assembly, and its othei end pivotally engaged to the Iower paddle clamp 27 thus, when rotational form is created by a paddler, the pedal assembly thereby rotates the drive crank 26, which in turn exerts a rotational force at a cinam~eremisl ~tion on paddle clamps 28 rotationally axtached to the ends of the drive crank 2b. Said paddle clamps 28, are frictionally attached to the lower arid portion of a conv~ttional paddle 25.
Tensing now to Figure 6 and 7, both illustrating a paddle clamp 27 or 28 of the biomechanically correct pedal powered paddling system for small waterc~rafts of the present imrention wherein, Figure b illustrating said clamp in an opened position, and Figure 7 in a closed or locked position. The paddle clamps 2? or 28 comprise: a body portion 60 having a gully U-form made of a relatively resilient material, a hinge portion 59, one or more inner paddle cradles 63 and b4, and an outer clamp cradle 65, a two axis hinge 62, a Ioclcing level b1 having an off-center hinge axis ?0, an axle 66, swivel bearing 6?, and a connecting me'<nber 68.
1o In its opened position, the paddle clamp 2? or 28 is poised to reveive a paddle 25 handle between its imier paddle cradles 63 and 64. Once the paddle 25 is in plane, the two-axis hinge 62 is pulled over the body portion 60 and the locking lever's b1 knuckle placed into the outer clamp cxadle 65, the locking lever 61 is darn huh over the body b0 wherein the off'-center hinge axis portion ?0 applies compression to the paddle handle 25. The axle 66, being rotationally within the body portion 60 and f~dly attached to a corresponding swing lever or crank arm allows fi~ee rotational motion of the clamps 2? or 28 from the axle bb and its attached members.
Turning to Figure 8, a partial rear elevation view selected from figure 3, ills more closely, the details of watercraft-atta~ing portion of the fame 20 wherein an outer clamps member 45 abuts the outer seufa~ce of a canoe's 1b gunwale 1? and the lower of said flame 20 rests atop said gumwale 17. A female inner clamp member 43 fixedly attaclmd to the underside of the frame 20 rotationally mated a like-threarded turn spew 40 having a knob 41 and a threaded bolts 42 fixedly attached to said knob 41. A cosion block 44 rotationally to said threaded bolt 42 but not treaded to allow rotational motion and not threadedly engaged to said threaded bolts is ~t2, compresses against the inner surface of the gunwale 17 thus clamping said frame 20 firmly to the canoe's 16 gunwale 17. A taper is provided on the gunwale-contac~ang portion of the compression block, which prev~ts slippage of clamp assembly from the gunwale 17.
Taming to Figure 9, which depicts an option of the presem invention is so far as, said system can be easily folded down when user wishes to paddle by hand. This is sometimes necessary when paddling in shallow waters or narrow water paths. In order to fold down the system, the user simply disconnects disconnect the upper cocm~tor of both diagonal supports 24, loosens the lower connector of the vertical member 22 and folds down the assembly against the extension portion 21 of the frame 20.
to fore in resolution of the above specification of the present invention, aayone with a small watercraft such as a canoe with two paddles can quickly and easily adapt said watercraft and benefit from the features and ut~7ity of the present invention.
BIOMECHANICALLY CORRECT PEDAL POWERED PADDLING
SYSTEM FOR SMALL WATERCRAFTS
FIELD OF SON
The present invention relates to an accessory system simulating the biomechanical motion of manual paddling such as with a canoe or small boat. The system comprises: a watercraft attaching frame having a width-adjustable joining portion, an array of levers and members, paddle s attaching members, a pedal system, and linkage therebetween, all forming a mechanical adapted to simulate the biomechaaicat motion commonly used by operators paddling a small watertxaft.
I~ACI~GROU~1'D OF THE iNVENTI(~N
For illustration purposes, the applicant will illustrate the use of the presem imiention 1o as used on a conventional canoe. However, it wdl be understood that the invention, as described, is equally ei~rive on small boats and similar watemxafts, which can commonly be propelled by use of conventional paddles.
The inventor sought to provide canoe operators with a system for not only propeniag a canoe using pedal power from one's legs, but also with the abi'Iity to easily disable said system 15 when not required, and particularly, a the biomechanical motion of canoe paddling thus optimizing water displacement, ma~tg the e$nrt of paddling optimally e~cient.
Furthermore the present invention provides impro~ in the art of pedal-propulsion systems designed for small Z
vvatercxaft. Most pedal propulsion systems aim to eliminate the need of manually paddling the watetcra8 by hand, or to replace electric or gas powered motors, which in turn drive propeller drives or paddle wheel assemblies. E~ng pedal powered propulsion devices for small watercraft are usually attached to the watercraft in a fashion so that it could be removed at a later time. However, s during the period of use, afloax in the water, the device is always attached in a way that in turn may Limit the flanbility of travel for the wateraaft. One such case is where the watercraft is required to traverse a narrow waterway or fixed obstacles in its path.
There are three basic categories of human-powered propulsion systems for small watercrafts, they are:
1o l. propeller dtiv~en, ii. paddle wheel driven, and iii. row-style driving devices.
Devices falling into categories (l) and (ii) develop problems with tangling of aquatic Plants, damage to aquatic plants and to equipment. Devices falling into csitegories (ii) and (iii) are is usually of a bulky nature and cumbersome, which take up space outside of the watercraft, in turn limiting the man~v~ability of said wat~craf~.
In summary devices of category (l), propeller driven, have the following problems;
- Pedal powered propeller drives are complicated and costly, 20 - They are heavy, and - They can danaage.and become tangled in aquatic plants.
Category ('>i) devices, paddle wheels, have the following probleana;
' 3 - Paddle wheels can grab aquatic plants and bt~ud, - Ely and exit into and out of the water surface by a paddle wheel is not efficient, - They are noisy, - They waste e~ae'rgy by splashing water outward from the wheel paddles, - Splash guards are required to keep the passengers dry, - They have a lower energy el~ci~cy, - They are heavy, and .
- Have a multipliaty of redundant paddles and structure to support them, l0 Category (iii) devices, rowing-style driving devices, have the following problems;
- They are efficient but take up a large space, thus reducing maneuverability, and - They are laravy due to the Stiuc~re required, Therefore, the applicant intends to overcome a majority of the problems associated.
with prior art human-powered propulsion system by providing a new improved biomechanically correct pedal powered paddling syst~n for small watercraf~s.
The appfic~nt is aware of in prior art to provide means of propelling small wat~xa&S using mechanically powered apparatuses.
An example of prior art may be had when referring to United States patent numb 5,584,732 of Owen, Dec. 17, 1996 depicting a part paddle attached to a mechanical linkage 2o device powered by foot pedals. However, the device fails to compare with the present ion in that it propels tlxr waxercraft using a fish tail motion know to be ine~cdent when adapted to a rigid body since it exerts a large portion of its force in a side to side motion.
' 4 Another example may be had in refe~g to Unity States patent 1,532,990 of Cs~gery, issued April 7, 1925, which teaches of a boat having a rotary paddle apparatus adapted to propel said boat by hand power. This device fads to compare with the present invention in that it does not simulate the biomechanical motion of human paddling, as does the present invention.
Another example may be had in referring to United States patent number 5,249,991 of Schinkel, issued October 5, 1993, which depicxs a manuauy opt propulsion device for $
canoe comprising generally of a rotary paddle arrangeanent power by hand, again failing in that it does not symulate the biomechanical motion of human paddling.
to s ~u~.y o~ ~ nwE~oN
It is thus the object of the present invention to provide canoe operators with a syst~n for not only propelling a canoe using pedal power from one's legs, but also with the ability to easily disable said system when not required, sail particularly, simulate the bioaxxhanical motion of Canoe paddling thus optimizing water displacem~t and e~ciency.
In one aspect of the imernion, the system symhesizes the natural manual paddle motion commonly used when paddling by hand.
In aaother aspect of the invention, the systean's biomechanically cowect simulation enhar~s the efficiency in power by reduang drag while increasing paddle aligmnent.
to In another aspect of the lion, the system of the present imrention can easily collapse when use thereof is not desired.
In another aspect of the imrention, flaw system can be quickly installed and removed from the watercraft in a mattes of minutes without making alterations or modifications to said waxer~.
Accordingly, the System of the present im~ntion provides canoe operators with a system for propelling a canoe using pedal power from one's legs, the ability to easily disable said system when not required, and partiarlarly, simulates the biom~echanical motion of canoe paddling thus optimizing water displaoemem a paddling e~caency.
' 6 BRIEF DESS:RI~'~,ON OF THE DRAWINGS
These and other advantages of the invention will become apparent upon reading the following brief description and upomefe~ring to the drawings in which:-FIGURE 1 is a left side elevation view of the orientationat path of the s biomecharnic~lly correct pedal powered paddling system for small watercxafts of the present invention.
FIGURE 2 is a left side elevation view of the lrio~chanically correct pedal powered paddling system for small watercrafts of the present iuve~ion in use.
FIGURE 3 is a cross-sectional view taken from Figure 4 of the biomechanically 1o correct pedal powered paddling system for small watercrafts of the present invention.
FIGURE 4 is a partial top plan view of the biomechanically correct pedal powered Paddling system for small watercxafts of the present invention.
FIGURE 5 is a partial rear perspective view from above of the biomechanica>ly correct pedal powemd paddling system for small waterca~afts of the presenx invemion.
i5 FIGURE 6 is a side elevation view of a paddle clamp of the biocally correct pedal poi paddling system for small watemrafts ofthe present invention in an opened position.
FIGURE 7 is a side elevation view of a paddle clamp of the biomechanically correct pedal powered paddling system for small wateTCrafts of the presem imrention in an closed position FIGURE 8 is a s~Cted view taken from Figure 1 of the frame clamp device of the 2o biomechanically correct pedal powered paddling system for small watercrafts of the present invention.
FIGURE 9 is a partial side elevation view of the biomechanically correct pedal powered paddling system for small watercrafts of the present im~tion in a collapsed position.
Wtule the ~hon is descn'bed m coryunchon with preferred ~Ilustrated embodiments, it will be understood that it is not int~ded to limit the invention to such embodiments.
On the copy, it is intended to cover all alternatives, modifications and equivalents as may be included within the spirit and scope of the invention as dei~ by the appended claims.
s io is DETAILED DESCRIPTIOhI OF THE PREFERRED EMBODIMENT' In the following description, similar features in the drawings have been given similar reference numerals.
'Ding to the drawings, in particular, Figure 1, which illustrates a left side elevation s view of the orienta~tional path of the biomechanicaUy correct pedal powered paddling system for small watercrafts of the present imrention wherein members 12 represent the paddle, and each member 12 is of equal length, numerical figures 2x to 9x (where x depict points a, b, and c) represent a fixed point on said paddle, where Xa (where X depicts 2, 3, 4... 9) r~resents the tip of th,e paddle, Xb represents the lower pivot camp fixed to a mid section of the paddle; and Xc represents the to upper pivot clamp also fixed to the upper section of said paddle.
A paddle crank having a no~rot~ional female end adap~tea to receive the male end of a d 'rne shaft, and a rotational end adapted to secx~re to a linkage attaching portion of the above paddle receiving portion rotates at a drive axis 11, and a swing lever rotates at a lever axis 10.
Upon following the path as illustrated in this Figure, ore can comprehend the 1s compound motion ge~sted by this dual a~-dual pivot me~Od of obtaining the biomechanically correct simulation of nat<ual paddling motion. The system of the present invention therefore promotes optimal paddle entry to and exit from tire water body 14 on which a canoe 16 is traveling.
Turning now to Figure 2, a left side ion view of the biomec~anically correct pedal powered paddling system for small vvatercrafts of the presem inv~ution in use comprising; a 2o waterrcraft ag frame 20, a frame extension 21, a vertical arm mernbeT 22, an swing lever 23, a diagonal support na~r 24, a paddle 25, a drive crank 26, a lower paddle clamp 27 and an upper paddle clamp Z8 witeran, the ~ attaching frame 20 fixedly attaches to the gunwale portion 17 by means of a turn screw clamp, the frame e~ension 21 is integral with the watercraft attaching frame 20, the vertical arm member 22 is pivotally attached to a rear bracket 30 integral with the frame extension 21 and pivotally engaged with the rear portion of the swing lever 23, the swig lever 23 is also pivotally engaged to the upper Paddle clamp 28, the diagonal support member 24 is pivotally attac~d to a front b31 and to an upper mid section of the vertical arm member 22 s thereby forming a structural triangle rigidly supporting said vertical arm member 22, the paddle 25 is held in place by mesas of the lower paddle clamp 27 and the upper paddle clamp 28, and one end of the drive crank 26 is non-rotationally engage to the outermost end of the pedal drive assembly, and its other end pivotally engaged to the lower paddle clamp 27.
In now to Figure 3, a cross'seGtional view taken from Figure 4 of the biomechanecally cmroct pedal powered paddling system for small watercrafts of the presem invention illusOrrating, in a different perspective, the assembly components of the system whe~eia, a watercraft attaching frame 20 is setxuedly yet releasably attached to the gunwale 17 of a small waxercraft such as a canoe 16 as illu~rated, using a turnrscrew type 40 thereby seauing said frame 20 from movement ax any axis in relation to the c~unoe 16. The watetcraft att~g frame 20 is is made to adjust to the varied width of coonal waxercxafts by mesas of slotted tongue members 32 adapted to slidably engage to each opposing frame member and secured to each other with bolts 33 thus creating a larger contact surface area thereby Preventing displacement between each frame member. The frame 20, formed in two minor opposite portions, each have a horizontal dal portion, a diagonal portion ending upwardly and outwardly from the oes~rai portion, and a horizontal clait~p portion, is so forn~d to allow sufficdent clearance for rotational movement of the pedal members of the pedal assembly and said flame 20 is irnegral in maintaining vertical and horizontal parallel alignment to both left and right sides in t to the alignment and shape of the watercxa$.
Two frame extension portions 21 extending re$rwardly from each upper outermost portion of said frame 20 integrally include a front bracket 31 and a tear bracket 30 wherein the front bracket 31 serves to rotationally attach the lower portion of a diagonal support 24, and the rear bracket 30 serves to also rotationally attach the lower portion of a vertical arm 22 on which the upper 5 portion of the diagonal support 24 in turn rotationally attaches to a perforation in the upper-mid section of the vertical m22 th~by resulting is a triangular ire formed between the frame extension 21, the vertical member 22 and the diagonal support 24. Pedal drive ions 36 having deep female end and a male end wherein the female end having a generslly square inner form is adapted to slidably but non-rotationally engage with the outer surface of the pedal drive 37, and to the male end of the pedal drive extension is partly threaded to accept a nut after traversing the crank arm Z6 thus preveat;mg rotational freedom of crank arm with pedal drive extension 36.
A swing lever Z3 having a perforation near each end, rotationally attaches at one end of said lever 23 to the uppermost perforation of the vertical member 22, and the opposing end of said lever 23 ~au~dly attached to pivoting member of the upper paddle clamp 28.
The upper paddle clsmap 28 ao~d lower paddle clamp 2'1 frictionally attach to a conventional paddle and said paddle clamps 28 and 27 comprise: a paddle receiving portion, a locking member, an axle member and a attaching portion.
Turning now to Figure 4, a partial top plan view of the biomechanicaily correct pedal powered paddling system for small watercra~fts of the present invention iitustranag the assembly components of the system comprising: a watercraft attaching frame 20 seau~dly yet releasably attached to tire gunwale 17 of a sa~ll watercisft such as a canoe 16 as illustrated. The watercraft attaching frame 20 is made to adjust to the varied width of conventional wat~ercrafts by means of slotted mufti tongue members 32 adapted to slidably en~ge to each opposing frame member and secured to each other with bolts 33 thus cxeating a larger contact area thereby preventing displacement between each frame member.
Two frame extension portions 21 extending rearwardly from each upper outermost portion of said frame ZO irneg~rally include a front bracket 31 and a rear bracket wherein the front bracket 31 serves to rotationally attach the lower portion of a diagonal support 24, and the rear bracket serves to also rotationally attach the lower portion of a vertical arm 22 on which the upper portion of the diagonal support 24 in turn rotationally attaches to a perforation in the upper mid section of the vertical meamber 22 thereby resulting is a triangular structure formed between the frame extension 21, the vertical member 22 and the diagonal support 24.
1o A drive creak 26 is nan-rotationally e~age to the outermost end of the pedal drive assembly, and its other end pivotally to the lower paddle clamp 27 thus, when rotational force is created by a paddler, the pedal assembi~r therebyr rotates the drive cxank 26, which in turn exerts a rotational force at an arm motion on upper paddle clamps 28 rotationally attached to the ends of the drive cr~mk 26. Said paddle clamps 27, when frictiona>iy attached to the lower mid portion of a convemional paddle 25, form a basis of the compound motion of the of the present imreation, which sy~ to natural motion of arm-powers paddling.
The upper paddle clamp 28 and lower paddle clamp 27 frictionally attach to a comrentional paddle and said paddle clamps 28 and 27 comprise: a paddle receiving portion, a locking mcmber, an axle her and a linkage attaching portion The pedal drive ions 35 2o having deep female end and a male end wherein the female end having a generally square inner form is adapted to slidably but non-rotationally e~age with the outer s~urfacx of the pedal drive 37, and the male end of the pedal drive extcnsion 36 is partly threaded to a~cxept a nut after traversing the crank arm 26 thus preveming rotational fr~dom of crank arm with pedal drive extension 36.
..
i2 Therefore, it can be understood that a paddler, seated (55) within the watercraft 16, places his fed one on each pedal 34 at the pedal drive assembly 37, and supports ldmse)f by holding the gunwales 17 of said watercraft 16, pedals as he would a bicycle to drive the attached crank arm 26, which is notably engaged to the lower mid section of a conventional canoe paddle 25 by means of a pivotal lower paddle clamps 27, and said canoe paddle 25 is pivotally to a swing lever 23 by means of a pivotal upper paddle clamp 28, which said upper paddle clamp 28 being attached to said swing leer 23 and sand swing lever 23 opposing end being pivotally attached to a vertical arm 22 supported by a diagonal support 24 thereby, when the drive crank 26 is rotated, the lower paddle clamp 27 simply moves in a continually rotational moveanent equal in radius to the cerner to lo oemer of both perforations in the drive crank 26, and the upper paddle clamp 28 move is thereby timibed to an arc of a tangent g~eraily equal to twice the radius of the crank arm 26.
Therefore, the combination of these movem~s for a compound action at the tip of a paddle 25 closely synthesizes the na~bu~a1 motion of conventional ann-powered paddling but is powe~d by the user's legs.
Figure 5, a partial perspective view from the rear of the biomechanically correct pedal powered paddling system fnr small watercrafts of the presem invention better illustrating the assembly of the present imre~on onto a canoe 16 whereas, a watercraft a~aching frame 20 seau~edly yet r~easably attached to the gunwale i'1 of said canoe 16. The frame 20 comprises two mirror opposite portions, each have a horizomai dal portion, a diagonal portion extending 2o upwardly and outwardly from the cal portion, and a horizontal clamp portion, is so foamed to allow su~cient clearance for rotational mod of the pedal m~nbers of the pedal assembly and said frame 20 is it~tegal in maintaining vertical and horimatal parallel alignment to both left and right sides in respect to the aiitgnment and shape of the watercraft. The frame 20 is made to adjust to the varied width of conventional watercrafts by means of slotted mufti-tongue members 32 adapted to slidably engage to each opposing frame member and secured to each other with bolts 33 thus creating a larger contact surface area thereby preventing displacement between each frame 20 member.
s A pedal drive assembly 37 having two foot pedals 34 both offset on the same plane and irnegrally attached to a drive member, which rotates on a horizontal axis perpendicular to the canoe's 16 length, a bearing portion 39 at each end distal from the foot pedals 34, drive extension members 36 having deep female end and a male end wherein the female end having a generally square inner form is adapted to slidably but non-rotationally engage with the outer surface of the to pedal drive 37, aad the male end of the pedal drive extension 36 is partly threaded to accept a nut after traversing the crank arm 26 thus preventing rotational freedom of cxank arm with pedal drive extension 36. Two frame extension portions 21 extending rt:~~rvvardly from each upper outernnost portion of said frame 20 imegraily include a front bracket 31 and a rear bracket wherein the front bracket 31 serves to rotationally attach the lower portion of a diagonal support 24, and the rear is bracket serves to also rotationally attach the lower portion of a vertical arm 22 on which the upper portion of the diagonal support 24 in turn rotationally attaches to a perforation in the upper-mid section of the vertical 22 thereby resulting is a triangular struct<u~e formed between the frame extension 21, the vertical member 22 and the diagonal support Z4.
A drive crank 26 is non-rotationally engage to the outermost end of the pedal drive 2o assembly, and its othei end pivotally engaged to the Iower paddle clamp 27 thus, when rotational form is created by a paddler, the pedal assembly thereby rotates the drive crank 26, which in turn exerts a rotational force at a cinam~eremisl ~tion on paddle clamps 28 rotationally axtached to the ends of the drive crank 2b. Said paddle clamps 28, are frictionally attached to the lower arid portion of a conv~ttional paddle 25.
Tensing now to Figure 6 and 7, both illustrating a paddle clamp 27 or 28 of the biomechanically correct pedal powered paddling system for small waterc~rafts of the present imrention wherein, Figure b illustrating said clamp in an opened position, and Figure 7 in a closed or locked position. The paddle clamps 2? or 28 comprise: a body portion 60 having a gully U-form made of a relatively resilient material, a hinge portion 59, one or more inner paddle cradles 63 and b4, and an outer clamp cradle 65, a two axis hinge 62, a Ioclcing level b1 having an off-center hinge axis ?0, an axle 66, swivel bearing 6?, and a connecting me'<nber 68.
1o In its opened position, the paddle clamp 2? or 28 is poised to reveive a paddle 25 handle between its imier paddle cradles 63 and 64. Once the paddle 25 is in plane, the two-axis hinge 62 is pulled over the body portion 60 and the locking lever's b1 knuckle placed into the outer clamp cxadle 65, the locking lever 61 is darn huh over the body b0 wherein the off'-center hinge axis portion ?0 applies compression to the paddle handle 25. The axle 66, being rotationally within the body portion 60 and f~dly attached to a corresponding swing lever or crank arm allows fi~ee rotational motion of the clamps 2? or 28 from the axle bb and its attached members.
Turning to Figure 8, a partial rear elevation view selected from figure 3, ills more closely, the details of watercraft-atta~ing portion of the fame 20 wherein an outer clamps member 45 abuts the outer seufa~ce of a canoe's 1b gunwale 1? and the lower of said flame 20 rests atop said gumwale 17. A female inner clamp member 43 fixedly attaclmd to the underside of the frame 20 rotationally mated a like-threarded turn spew 40 having a knob 41 and a threaded bolts 42 fixedly attached to said knob 41. A cosion block 44 rotationally to said threaded bolt 42 but not treaded to allow rotational motion and not threadedly engaged to said threaded bolts is ~t2, compresses against the inner surface of the gunwale 17 thus clamping said frame 20 firmly to the canoe's 16 gunwale 17. A taper is provided on the gunwale-contac~ang portion of the compression block, which prev~ts slippage of clamp assembly from the gunwale 17.
Taming to Figure 9, which depicts an option of the presem invention is so far as, said system can be easily folded down when user wishes to paddle by hand. This is sometimes necessary when paddling in shallow waters or narrow water paths. In order to fold down the system, the user simply disconnects disconnect the upper cocm~tor of both diagonal supports 24, loosens the lower connector of the vertical member 22 and folds down the assembly against the extension portion 21 of the frame 20.
to fore in resolution of the above specification of the present invention, aayone with a small watercraft such as a canoe with two paddles can quickly and easily adapt said watercraft and benefit from the features and ut~7ity of the present invention.
Claims (5)
1. A biomechanically correct pedal powered paddling system for small watercrafts comprising:
a. a watercraft attaching frame having:
i. a central width-adjustable joining portion, ii. two opposing watercraft-clamping member for attaching said frame to watt gunwale, iii. two opposing pedal-assembly receiving portions, iv. two opposing primacy linkage pivoting members, v. frame ion extending perpendicularly from each end portion of said frame, and vi. two opposing secondary linkage pivoting members, b. a pedal drive assembly having;
i. a primary pedal drive shaft having extension receiving female members at each end, ii. two drive shaft extensions having non-rotatable male ends longitudinally adjustably mating with female drive shaft members and paddle drive members distal from the primary drive shaft, and iii. two foot pedals rotably attached to offset member integral with pedal drive shaft forming crank member, c. an upper and lower paddle-attaching portion each having:
i. a paddle receiving portion, ii. a linkage attaching portion having single axis rotational freedom from paddle receiving portion, and iii. releasable paddle locking member, d. a linkage array having:
.i. a paddle crank having a non-rotational female end adapted to revive the male end of the drive shaft extensions, and a rotational end adapted to secure to the linkage attaching portion of the above paddle receiving portion, ii. a swing lever, iii. a diagonal support member, iv, a vertical member, and v. a plurality of pivotal axle members
a. a watercraft attaching frame having:
i. a central width-adjustable joining portion, ii. two opposing watercraft-clamping member for attaching said frame to watt gunwale, iii. two opposing pedal-assembly receiving portions, iv. two opposing primacy linkage pivoting members, v. frame ion extending perpendicularly from each end portion of said frame, and vi. two opposing secondary linkage pivoting members, b. a pedal drive assembly having;
i. a primary pedal drive shaft having extension receiving female members at each end, ii. two drive shaft extensions having non-rotatable male ends longitudinally adjustably mating with female drive shaft members and paddle drive members distal from the primary drive shaft, and iii. two foot pedals rotably attached to offset member integral with pedal drive shaft forming crank member, c. an upper and lower paddle-attaching portion each having:
i. a paddle receiving portion, ii. a linkage attaching portion having single axis rotational freedom from paddle receiving portion, and iii. releasable paddle locking member, d. a linkage array having:
.i. a paddle crank having a non-rotational female end adapted to revive the male end of the drive shaft extensions, and a rotational end adapted to secure to the linkage attaching portion of the above paddle receiving portion, ii. a swing lever, iii. a diagonal support member, iv, a vertical member, and v. a plurality of pivotal axle members
2. The biomechanically correct pedal powered paddling system of claim 1 wherein the drive portion comprises a drive extension at each end thereof having a longitudinally slidable non-rotational joint therebetween.
3. The biomechanically correct pedal powered paddling system of claim 1 wherein the paddle crank arm is notably driven by force generated by rotational motion of the pedal drive assembly.
4. The biomechanically correct pedal powered paddling system of claim 1 wherein upper and lower paddle clamps ace adapted with a quick-release apparatus for easy removal of said paddles.
5. The biomechanically correct pedal powered paddling system of claims 1 through 4 wherein use thereof is for propelling a small watercraft using ones leg power or other forms of manual or mechanical force, while synthesizing the biomechanical motion of conventional arm powered paddling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2485528 CA2485528A1 (en) | 2004-11-17 | 2004-11-17 | Biomechanically correct pedal powered paddling system for small watercraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2485528 CA2485528A1 (en) | 2004-11-17 | 2004-11-17 | Biomechanically correct pedal powered paddling system for small watercraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2485528A1 true CA2485528A1 (en) | 2006-05-17 |
Family
ID=36406115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2485528 Abandoned CA2485528A1 (en) | 2004-11-17 | 2004-11-17 | Biomechanically correct pedal powered paddling system for small watercraft |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2485528A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117227914A (en) * | 2023-11-16 | 2023-12-15 | 四川省天晟源环保股份有限公司 | Polluted water area microbial agent throwing ship and polluted water area treatment method |
-
2004
- 2004-11-17 CA CA 2485528 patent/CA2485528A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117227914A (en) * | 2023-11-16 | 2023-12-15 | 四川省天晟源环保股份有限公司 | Polluted water area microbial agent throwing ship and polluted water area treatment method |
| CN117227914B (en) * | 2023-11-16 | 2024-01-19 | 四川省天晟源环保股份有限公司 | Polluted water area microbial agent throwing ship and polluted water area treatment method |
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Effective date: 20121214 |