EP2070814B1 - Anordnung und kopplungselemente für pedalbetriebenes ein- oder mehrsitzboot mit schaufelrädern - Google Patents

Anordnung und kopplungselemente für pedalbetriebenes ein- oder mehrsitzboot mit schaufelrädern Download PDF

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Publication number
EP2070814B1
EP2070814B1 EP07822879.8A EP07822879A EP2070814B1 EP 2070814 B1 EP2070814 B1 EP 2070814B1 EP 07822879 A EP07822879 A EP 07822879A EP 2070814 B1 EP2070814 B1 EP 2070814B1
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EP
European Patent Office
Prior art keywords
longitudinal
floats
main
pieces
shaped
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EP07822879.8A
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English (en)
French (fr)
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EP2070814A1 (de
EP2070814A4 (de
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José Nieto León
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    • 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
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
    • B63B34/50—Body-supporting buoyant devices, e.g. bathing boats or water cycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/08—Steering gear
    • B63H25/10—Steering gear with mechanical transmission
    • 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
    • B63H5/02—Arrangements on vessels of propulsion elements directly acting on water of paddle wheels, e.g. of stern wheels
    • 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
    • B63H16/20—Other apparatus for converting muscle power into propulsive effort using rotary cranking arm
    • B63H2016/202—Other apparatus for converting muscle power into propulsive effort using rotary cranking arm specially adapted or arranged for being actuated by the feet of the user, e.g. using bicycle-like pedals

Definitions

  • the invention here described is located in the field of small boats and watercrafts for aquatic leisure and recreational activities in relatively calm water. It describes a set of pieces in kit form for quick and easy assembly of small enlargeable customizable pedal boats provided with two or more parallel floats for one, two, or even more passengers.
  • this invention does not describe any specific single pedal boat or watercraft, but describes a set of pieces in kit form, very simple, durable and strong, being the most of them manufactured in plastic materials for avoiding corrosion, that enables easy and quick assembly of several hull configurations of small pedal boats or watercrafts for aquatic leisure, which are enlargeable from two main floats to many by means of relatively few kit parts to assemble but achieving high structural strenght.
  • Locking devices are multi-purpose and the more simple possible for enabling to attach and to detach easily different swappable elements, pieces and seats if they have the same or compatible locking system. For instance, users can dock in front of the default pedal boats two types of front floats at will for choosing to improve flotation or navigation performance against waves, or for adding cargo capacity to the default watercrafts.
  • Uses can also change propulsion and steering systems, changing default pedals and paddlewheels by oars, paddles, electric propellers, or other accesories present in the market because the default propulsion system here described is very quick to dock and undock in the pedal boats but providing high safety and strenght.
  • the invention also allows that the watercrafts could be sold in prepared packages having a complete detachable watercraft each, as well in the form of detached pieces for enlarging, specializing or customizing such watercrafts or going achieving them by gathering piece by piece.
  • the patent FR 1544093 describes a human-powered propulsion device for small pedalos for one or more passengers which is placed below the seat of each passenger.
  • the invention is focused mainly in the propeller, not in the main floating structure needed for the watercraft. Steering devices are also not described. Its only similarity to the invention described herein is that it is the first patent document found which is referred to a two-seater pedal boat constructed with three main longitudinal floats, being each passenger and all elements for his accomodation placed between each pair of adjacent main floats, repeated as many times as number of passengers and seats. But it differentiates in not having any longitudinal U-shaped bar or plate for strenghtening floating structures as this invention has.
  • the structural frame is constituted by thin tubes which are joined among them in right angles, with no oblique elements joined in non-right angles for shaping triangles along the structure to strenghten the boat against torsion and shearing stresses.
  • the three crossbars are made also in thin stainless steel tubes and it seems they have not enough thickness or diameter as it should be.
  • US 6311632 describes an electric-powered watercraft propelled by a swivel rear propeller that can pivot around a vertical axis for steering control by means of a control lever.
  • the frame, seat, drive and control elements rest their weight over two cylindrical identical floats whose extremes are finished in conical tip, being made of bent and welded aluminium sheet in convenient form.
  • two identical floats arranged in the forward direction of the boat, three identical crossbars are arranged in the same horizontal plane and perpendicularly with respect to the floats they join by working as linking pieces, constituting the main structural frame of the watercraft.
  • These three crossbars are characterized in that the extremes of every one of them finish in the same hook-shaped metal piece, thanks to which the crossbars can loop over and overlap the top of the cylindrical main floats, fitting over their outer top surfaces, being finally secured to them. All weight of the watercraft and passenger rest on the floats by means of such hook-shaped or U-shaped pieces that embrace the floats as they are bent in U shape according to a vertical plane. Since these three crossbars are positioned respectively in the front, rear and middle parts of the twin cylindrical floats, they distribute weight evenly along them.
  • U-shaped pieces may be removable from the main body of each crossbar (by using screws or pins) or be joined to these pieces, well by welding these hooks to the crossbars, well by bending the starting straight crossbars in hooked ends.
  • U-shaped pieces which act as hooks for hanging the frame and passenger from the floats, are joined to the floats by an unspecified system, being suggested by the author welding as a possibility. This is the main lack of this invention for achieving structural strenght as discussed later.
  • this mid frame is linked coplanarly to the plain of all three crossbars, so thereby a perpendicular intercrossing is obtained between main crossbars (arranged in transverse direction) and mid frame (arranged in longitudinal direction, in parallel to main floats).
  • main crossbars arranged in transverse direction
  • mid frame arranged in longitudinal direction, in parallel to main floats.
  • the main similarity between this invention and the one presented herein is the intercrossing and liking of several different pieces alternately in longitudinal and transverse directions, stacked one above the other in horizontal layers and firmly joined mutually, which enables to increase number of screwing or bonding positions, both in longitudinal, transverse and several diagonal directions, and to increase strength of the floating structure against bending, torque and shear because the water movements. From this point differences begin.
  • the floats are also active contributors to the structural strength, so at least two crossbars (arranged in transverse direction), at least two longitudinal U-shaped bars or plates and at least two floats (both pices arranged in longitudinal direction) are mounted, so when compared there are in this case three types of structural pieces, being one of them also the flotation element.
  • the floats are cylindrical, made of aluminum and their outer surfaces are smooth, so because of that the crossbars must be finished ending in U-shaped hooked pieces for being able of embracing the floats and resting all weight over them.
  • the floats lack of any slot, hole or housing hollow inside of which the crossbars would be inserted or screwed, while in this invention presented here all crossbars are housed and assembled through grooves or holes which completely pass through from side to side the top surface of each of the floats.
  • holes, grooves or slots add strength to the structure by opposing to torsion and shear movements, cooperating with the bolts, screws or studs that fix the floats to the crossbars, so that the floats have also a role from a structural standpoint, in contrast to US 6311632 in that the floats have no slots and are near to be passive from structural standpoint, being the link between floats and crossbars the weaker point of this invention, because all stresses must be supported only by the screws or welds, with no aid of vertical faces of any groove.
  • the crossbars can cross completely the floats, so it is possible to assemble a two-seater pedal boat having three floats starting from a single-seater pedal boat having two floats by changing the crossbars by other ones having two times the original lenght, and coupling furtherly all additional pieces for completing the new seat.
  • the two longitudinal U-shaped bars or plates are characterized in that they are arranged in a pair placed between each pair of adjacent floats, symmetrically with respect to the longitudinal vertical plane of symmetry passing through the center of the watercraft, or a similar one but belonging to each pair of adjacent main floats in multiple-seater watercrafts. They are placed in a horizontal plane, above the crossbars and floats, being joined both in a same plane parallel to the respective planes of the other two pieces and linked to both, that is, because its shape each one of these pieces cross perpendicularly the two other structural elements, resulting in an assembly of three layers, constituted, from bottom up, by floats, crossbars and longitudinal U-shaped bars or plates.
  • This stacked intercrossed structure makes that all elements always remain in parallel planes joined mutually among them, making its breakage and collapse more difficult.
  • each one of the longitudinal U-shaped bars or plates touches and rests its weight on the two crossbars and is screwed on both of them, whereas the shorter transverse segments of each of the two longitudinal U-shaped bars or plates are attached to the floats and screwed in two widely separated sections thereof, at the stern and at the bow, fitting inside two transverse slots on the top surface of the floats which are practiced specifically in these positions for a complete immobilization of these transverse segments.
  • the longitudinal segments can be placed at a certain distance from the vertical center plane of symmetry of the watercraft, to be placed below the seat and to receive the vertical component of the weight from the passenger effectively and to distribute it better to the crossbars, but at the same time the transverse segments of the same pieces can be extended away from their positions transversely outwardly reaching to the floats, so part of the weight and forces and part of structural stresses are distributed not only to the crossbars, but also to four other points over the floats which may be really away from the two central main crossbars, so the structure is finally reinforced better than if adding a third additional crossbar.
  • the transverse segments are placed inside longitudinal slots or grooves practiced transversely at the top of the floats like the holes or slots that house inside the main crossbars, such slots or grooves oppose to deformation movements of torsion, torque and shearing in a much more effective way than if such longitudinal bars lack of such transverse segments.
  • the screws that join the longitudinal segments of these U-shaped bars or plates to the main crossbars aare placed outside the straight lines that follow the lines of screws placed over the floats, and at the same time outside their corresponding perpendicular lines that follow the direction of the screws that join the transverse segments transversely to the floats.
  • transverse segments of the longitudinal U-shaped bars or plates prevent that their ends or the fixing screws of the pieces could be bent or broken if an excessive weight is placed over them outside the pair of main crossbars, as each extreme is joined to the float through its respective transverse segment. Thanks to these transverse segments the longitudinal segment of all these pieces can be provided with guideways or different coupling positions and devices along all its lenght for placing with safety the seat, displacing and adjusting the seat, or docking additional seats or other components or accessories along different longitudinal positions.
  • each longitudinal U-shaped bar or plate can have many selectable possible lenghts for adjusting the watercraft's width when assembled, in combination with a chosen length for the crossbars on each particular case.
  • their longitudinal segments may be assembled mutually in touch each other flanking at both sides the vertical longitudinal plane of symmetry of the watercraft or pair of adjoining main floats, but usually it is preferable to leave in the center of the watercraft a gap of enough transverse separation distance between the longitdinal sections of both two U-shaped longitudinal bars or plates for accommodating legs for pedaling with no collisions and trippings with other elements.
  • the seat is an element of active strengthening that maintains the parallelism between the two longitudinal U-shaped bars or plates.
  • Longitudinal U-shaped bars can be a bar whose extremes are symmetrically bent, being possible to cover it subsequently with a top hard plastic platform to put feet safely without danger or slip or to give an aesthetical or functional finish, or be directly U-shaped flat plates.
  • the weight from the top structure and passenger is distributed to three separate points on each of the twin floats by using four types of pieces
  • the weight is distributed to four points on each of the two or more floats, but by using only three types of pieces, being each one of these four points a transverse slot, groove or hole placed in the float, so that it is a more effective and efficient assembly system to achieve a strong structure by intercrossing fewer parts, which in addition can further be extended sidewards for placing more seats and floats.
  • the present invention can be further even more reinforced by docking the crankshafts with paddlewheels, which maintain a link between the prow of each one of adjacent floats in the watercraft, as it happens by placing one of the optional dockable front floats, since each one also acts as a linking piece that joins the prows of two adjacent main floats.
  • At least two equal transverse crossbars (1) (preferably two), whose cross-section is square or rectangular for enabling best assembly, are fixed to at least two equal parallel longitudinal main floats (2).
  • These three elements are mutually joined among them in pairs by means of screws or pins for obtaining a strong floating structure as described as follows.
  • each passenger is placed between two adjacent main floats (2) and sits on a seat (8) docked in middle of them, being such number of main floats (2), passengers and seats (8) selectable at will, starting from one seat and one passenger assembled over two main floats (2) to a number of n passengers and n seats assembled over main floats (2) a number of n plus one, so in multiple-seater watercrafts each two adjacent passengers share a common main float (2).
  • each pair of adjacent main floats (2) in all posible constructible watercrafts, from single-seater to multiple-seater ones, are separated between them always the same distance in transverse direction in relation to the direction of advance of the watercraft, being such distance constant an invariable. So depending on the number of desired passengers, seats and main floats (2) on each watercraft to assemble, at least a pair of identical crossbars (1) of different possible lenghts must be selected before assembling the rest of elements and parts over them.
  • the possible length values of such crossbars (1) for multiple-seater watercrafts is best understood once the structure of single-seater watercrafts is explained below.
  • the crossbars (1) are joined to the two or more longitudinal main floats (2), being placed passing through holes, slots or grooves (4) which are practiced transversely in relation to the direction of advance of the boat in the top of the longitudinal main floats (2) crossing them completely.
  • the crossbars (1) have vertical holes (5) practiced in calculated preset positions that are coincident, when the structure is assembled, with the same number of other vertical holes (6) practiced vertically and perpendicullarly into the holes, slots or grooves (4) of the longitudinal main floats (2).
  • a same number of screws or pins (7) join the crossbars (1) and the longitudinal main floats (2) when screwed by them, each one passing through a vertical hole (5) and a vertical hole (6) consecutively.
  • the two longitudinal U-shaped bars or plates (3) that each pair of longitudinal main floats (2) has, are responsible for supporting a further seat (8) and / or other elements for accommodation of passengers over them. They are disposed between and having its longer dimension in parallel to the longitudinal main floats (2), and each one of their two perpendicular transverse ends (9) can be placed inside one of two transverse complete slots or grooves (10) practiced at the top surface of each longitudinal main float (2). All transverse holes, slots or grooves (4) for placing the crossbars (1) are practiced in the main floats (2) between the two transverse slots or grooves (10) for placing the longitudinal U-shaped bars or plates (3).
  • the two longitudinal U-shaped bars or plates (3) are always placed and screwed symmetrically above the longitudinal main floats (2) and the crossbars (1), so weights and structural stresses due to the passenger or cargo are transmitted and distributed from the longitudinal U-shaped bars or plates (3) both to the crossbars (1) and to the longitudinal main floats (2) at the same time.
  • the crossbars (1) have another group of vertical holes (11) practiced in calculated preset positions which are coincident, also in assembly arrangement, with other group of the same number of vertical holes (12), which are practiced also vertically and perpendicullarly in the same coincident positions of assembly in the longitudinal U-shaped bars or plates (3).
  • a screw or pin (13) for each vertical hole (11) and each vertical hole (12) crosses trough two consecutive ones of them and joins a crossbar (1) to a longitudinal U-shaped bar or plate (3).
  • the longitudinal U-shaped bars or plates (3) have also other group of vertical holes (14) practiced in calculated preset positions for correct assembly that are coincident with other group of vertical holes (15) practiced vertically and perpendicullarly into the bottom flat horizontal surface of the transverse slots or grooves (10) in the longitudinal main floats (2).
  • a screw or pin (16) for each vertical hole (14) and each vertical hole (16) joins a transverse extreme of one of the two U-shaped bars or plates (3) to a main float (2) when screwed passing through both consecutive vertical holes belonging to both different pieces.
  • All transverse segments (9) of the identical longitudinal U-shaped bars or plates (3) are enough and exactly long to complete, in all watercraft assemblies, the distance between the desired or convenient transversal position of the main longer longitudinal segment (for supporting better the weight from the seat) and the nearest transverse slot or groove (10) belonging to the nearest float (2) when said standardized longitudinal U-shaped bar or plate (3) is placed in final assembly position, being specially important for enlargement capability and watercraft strengthening that such transverse segments reach exactly to the central vertical symmetry plane of the float (2) to which the longitudinal U-shaped bar or plate (3) is joined, so each one of the vertical holes (14) must be practiced coincidently with its correspondent coincident vertical hole (15).
  • the transverse segments (9) of a longitudinal U-shaped bar or plate (3) joined to a shared main float (2) are in mutual consecutive contact with the transverse segments (9) of other equal symmetrical longitudinal U-shaped bar or plate (3) belonging to the adjacent seat (8) and adjacent pair of main floats (2).
  • This contact strengthens multiple-seater watercraft structures very much than in case of no contact between them, because such transverse segments (9) can cooperate by being in touch and oppose to structure deformations.
  • crossbars (1) For bulding watercrafts having more than a single passenger and seat, other different longer crossbars (1) must be chosen from the beginning, being their lenght increasable by as many equal length steps as number of passengers, but using the same other types of pieces that used for building single-seater watercrafts, repeated and assembled sidewards as many times as passengers, with exception of main floats (2), which a single one per additional passenger is added because each two adjacent passengers share a common main float (2) between them.
  • the overall lenght of the twin crossbars (1) for building single-seater watercrafts is the sum of both lenghts, protruding their extremes from the middle of main floats (2) half the lenght of a hole, slot or groove (4).
  • Each crossbar (1) for single-seater watercrafts is divided in three segments, two symmetrical ending ones, having each half the lenght of the hole, slot or groove (4) each for a good coupling inside them by having the holes (5), and a middle segment having the rest of the crossbar (1) overall lenght, where the seat (8) and the U-shaped longitudinal bars or plates (3) are joined thanks to the holes (11).
  • the crossbars (1) required for building two-seater watercrafts are similar to the crossbars (1) used for assembly of single-seater ones, having sets of holes (5) and (11) placed in the same relative positions with no changes, but differing in having an additional length and additional identical cloned distributions of holes (5) and (11) displaced towards a side a certain length. Such additional length is extended starting from one end in two additional consecutive different segments along the same crossbar (1) piece.
  • First one is exactly identical in length and relative distributions, positions, number and diameters of holes (5) to the middle central segment of the crossbar (1) for single-seater watercrafts.
  • Second one is terminal, and is exactly identical to the terminal segment of the crossbar (1) for single-seater watercrafts in length and relative distributions, positions, number and diameters of holes (11).
  • crossbars (1) for construction of watercrafts for n passengers are obtained in a similar way starting from crossbars (1) used for building single-seater watercrafts, but in the direction of one of their ends the length is extended n times a middle segment plus a terminal segment from each crossbar (1) for single-seater watercrafts, with the particularity that alternatively the same distributions of holes (5) and (11) are practiced and drilled, performed with the same relative distribution, number, hole diameter and relative displacement in direction of the crossbar (1) always in an alternate disposition.
  • any crossbar (1) two ending shorter segments having holes (5) for joining to a main float (2) being housed inside a hole, slot or groove (4), and between them always there are at least a middle longer segment having holes (11) flanked by both sides by two shorter ending segments having holes (5), being on each one of the first ones where each pair of adjacent U-shaped bars or plates (3), the seat (8) and the passenger are placed, matching with the gaps between every two adjacent main floats (2).
  • the longitudinal main floats (2) become wider in transverse direction from the top flat surface toward its bottom nearly flat surface, improving by this way a good sliding above water and making easier displacement by human power by minimizing the submerged surface and decreasing friction with water.
  • Each longitudinal main float (2) have a prow that gets narrow in relation to its main body for cutting water better, and also for leaving more transverse distance between each two of them for placing propulsion devices and an optional front float (17), as for compensating additional buoyancy of this front float (17).
  • Each longitudinal main float (2) has also a keel (18) disposed on its central vertical symmetry plane for directing the water flow toward the rudders (19), increasing maneuverability of the boat or pedal boat.
  • Each crankshaft (21) has their two side crankshaft arms (24) finishing in ends which are coincident with the rotation axis and are modified to make a very easy and quick assembly step of paddlewheels (22) in the crankshaft (21). To do that, the ends of both crankshaft arms (24) are finished or machined in a rod end (26) whose cross-section is square or polygonal.
  • the central hole (27) of the paddlewheels (22) has exactly the same inner cross-section, enabling them to be skewered or impaled by the rod ends (26) and rotate together as a whole without the need of screws or pins. But if it is desirable a better resistance of the paddlewheels (22) against torsion, several pins (28) can be placed into the holes (29) that cross perpendicullarly the axis of the paddlewheels (22) and the rod ends (26) of crankshafts (21) to secure them firmly.
  • crankshafts (21), measured between the ends of their rod ends (26) of square or polygonal cross-section, is the same or a little less than the separation distance between the central vertical symmetry planes of each two adjacent longitudinal main floats (2), so two or more adjacent crankshafts (21) can be placed sidewards in mutual contact or very close to this arrangement.
  • these rod ends (26) of square or polygonal cross-section are not cylindrical in shape and the crankshafts (21) can not roll if joined to main floats (2) by them, two identical plastic bearings or rolling pieces with cylindrical symmetry (30) (preferably cylindrical in shape) for each crankshaft (21) are added.
  • each bearing or rolling piece of cylindrical symmetry (30) rolls fitting perfectly into a box-shaped locking piece (31), that has a cylindrical hole along its major axis with the same inner diameter that the bearing or rolling piece (30).
  • Both these rolling and locking pieces (30) and (31) can be manufacturad in a plastic material with low friction and high resistance to abrasion to prevent corrosion and bimetallic contacts that could boost corrosion even more.
  • Each box-shaped locking piece (31) fits exactly inside a top slot or groove (32) that cross from side to side transversely each longitudinal main float (2) near its prow, so that both ends of each stacked propulsion device (composed each by a crankshaft (21), two skewered paddlewheels (22), and the also skewered twin lateral rolling (30) and locking (31) pieces) can be firmly docked and fixed transversely in relation to the direction of advance of the watercraft by simply dropping it from above and fitting each one of their both side locking pieces (31) inside the slot or groove (32) at the prow of each one of the two adjacent main floats (2).
  • a front sliding cover (33) for each longitudinal main float (2) slides inside several longitudinal guideways or flanges (34) for locking and securing each stacked propulsion device to its respective pair of longitudinal main floats (2) with several pins or screws (35).
  • the rolling (30) and locking (31) pieces have the same length, or near this value, that the prow thickness of each longitudinal main float (2), but all the square or polygonal cross-section rod ends (26) of the crankshafts (21) that are introduced into the longitudinal main floats (2) through these slots or grooves (32) only have the half of such prow thickness as much.
  • crankshafts (21) with all their respective paddlewheels (22), sharing each two adjacent crankshafts (21) a middle rolling piece (30) and a middle locking piece (31) on each shared main float (2), for obtaining a pedal boat with two or more seats.
  • both rolling pieces (30) are mounted with their stoppers looking inside of the boat, and in a pedal boat of more seats, they are mounted with both enlargements or stoppers looking inside of each pair of adjacent longitudinal main floats (2).
  • This front float (17) has a little draught, so that it allows it to slide above water and make easier the displacement by human power. It can be coupled by horizontal sliding from the front of the pedal boat and between each pair of adjacent main longitudinal floats (2), passing exactly under the plane of the crankshafts (21) and pedals (25), without any touch or collision with these parts.
  • This front float (17) has on its rear a hollow or cavity that houses inside it the pedals (25), crankshafts (21) and passenger's feet in all their turning around their rotation axis with no collisions, frictions or bumps with other elements.
  • this front float (36) is open to water by its rear and / or sides. Instead of the cavity, it has optionally one or two symmetrical horizontal surfaces, foils or boards for sliding above the water but allowing to the passenger to have a rest for his o her feet and refreshing them with water.
  • the front float (17) is good for use when the wheather is cold, or the water is cold or dirty, because such watercrafts can be used with wear and shoes, and the front float (36) is good for use in beaches, pools or lakes in summer because there are no inner cavity that could be filled with water due to waves although feet get wet.
  • the front floats (17) and (36) are anchored to the flotation structure with a front horizontal curved bar (37) and two rear Z-shaped bent bars (38).
  • the front horizontal curved bar (37) is firmly joined to the front float (17) or (36) by its prow or middle part, and their two parallel arms are bent or curved an amount of 180°, giving it a C-shaped or an U-shaped look. Both arms can be introduced at the same time by horizontal displacement of the front float (17) or (36) with which are linked, into two horizontal longitudinal holes practiced or drilled in the sliding covers (26) and / or in the main floats (2) which have the same inner cross-section that the arms of the front horizontal curved bar (37), being fixed these both previous pieces with fixing screws (35).
  • the sliding covers (33) have a pair of equal horizontal holes, symmetrically practiced in relation of its own vertical symmetry plane.
  • each arm of the front horizontal curved bar (37) is introduced into the inner hole of each one of both sliding covers (33) placed at both sides (in relation to the considered seat), while the outer hole of each sliding cover (33) remains free for coupling other adjacent front float (17) or (36) in front of one of the two possible adjacent seats.
  • each one of these Z-shaped bent bars (38) is introduced transversely by one of their arms into a transverse symmetrical tube placed or drilled over the sliding covers (33), the longitudinal U-shaped bars or plates (3) or the longitudinal main floats (2), crossing them partially or completely.
  • each one of both Z-shaped bent bars (38) can pivot inside this tube or hole to introduce its other free arm into at least a locking device placed at the rear of the front float (17) or (36) from bottom, so part of the weight and buoyancy forces due to these flotational elements are supported by both Z-shaped bent bars (38) and the other one by the C-shaped curved bar (37), which anchor the front float (17) or (36) firmly and avoid that it could be released or loosen even if the passenger puts the feet over it.
  • Each longitudinal main float (2) has on its own stern a vertical tube or hole (39) for supporting a rudder (19) by means of several washers (40) and fixation pins (41).
  • Each rudder (19) ends in a top piece with shape in horizontal twin pulley (42) that can be locked or anchored with it. All rudders (19) have on their top the same horizontal twin pulley piece (42) that can be easlily manufactured in plastic in a single piece. It has several hooks or rings (43) symmetrically disposed around it for tying several ropes, cables or strings, and also top stoppers (44) for restricting the rotation angle of the rudders (19) and enable the turn only between two extreme positions with an angle between them of or lesser than 180°.
  • the pedal boats have a single little column (46) screwed with several screws (47) in any chosen longitudinal main float (2) for supporting a movable lever or steering wheel (48) for control of the boats.
  • the ends of both of them are connected by hooks, knots or rings to the piece with a horizontal twin pulley (42) of the same main float (2) and to the rod (51) of the steering wheel (48).
  • the vertical column (46) has two top aligned tubes (52), placed longitudinally in relation to the watercraft. Inside of each one a rolling cylindrical bearing or washer (53) is inserted, which has a longitudinal coaxial inner hole whose cross-section is square or polygonal (not circular).
  • the rod (51) of the steering wheel (48) has the same cross-section and skewers them, dragging them when it tums.
  • the steering wheel (48) can rotate freely rolling around the two bearings (53) and be displaced longitudinally along its central rod (51) for being adjusted to the passenger, with a pin placed at the end of its rod (51) to avoid to be released and lost.
  • This spool-shaped piece (54) is confined, so it can not be lost but can rotate when dragged by the steering wheel (48), and has two hooks or rings for tying or hooking the end of each one of the two strings (39) for control of the rudders (19).
  • the spool-shaped piece (54) makes the same, rolling up a string (49) and unrolling the other one, dragging by this way the rudder (19) of the same longitudinal main float (2) to one side, while the other rudders (19) connected and synchronized to the first one in parallel make the same being dragged by the synchronization string (45).
  • each one of the two control strings (39) are rolled in opposite directions the same number of several additional turns around the spool-shaped piece (54), then enabling by this additional length given to them that the steering wheel (48) could make freely the same number of turns symmetrically in both directions for making turn the rudders (19) freely, at least until a turning angle of 90° in both directions before one of the strings (39) get tight.

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  • Chemical & Material Sciences (AREA)
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  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Claims (17)

  1. Montage- und Verbindungselemente für Wassertretboote mit einem oder mehreren Sitzplätzen, die von Pedalen und Schaufelrädern angetrieben werden, die aus mindestens einem Paar identischer Querträger (1) bestehen, die auf ein und derselben waagerechten Ebene senkrecht zur Vorwärtsbewegung des Boots liegen und ausreichend lang sind, um an eine gewisse Anzahl identischer längsausgerichteter Hauptschwimmkörper (2) befestigt zu werden, die alle längs zur Vorwärtsbewegung des Boots angebracht sind und auch alle symmetrisch zu ihren entsprechenden wichtigsten Längssymmetrieachsen sind, wobei die Anzahl dieser längsausgerichteten Hauptschwimmkörper (2) gleich der Anzahl Passagiere plus eins ist und wobei zwischen jeweils zwei benachbarten Schwimmkörpern ausreichend Platz vorhanden ist, um darin sämtliche Bauelemente, Hilfsbauteile und Teile unterzubringen, die für die Unterbringung der Passagiere und für den Antrieb und die Steuerung des Boots notwendig sind, wobei diese schwimmende Struktur durch den Anbau zweier gleicher längsausgerichteter Stangen oder U-förmiger Platten (3) pro Passagiersitz und somit pro nebeneinanderliegendem, Paar längsausgerichteter Hauptschwimmkörper (2), so dass letztendlich jedes U-förmige Stangen- oder Plattenpaar (3) zwischen jedem nebeneinanderliegendem, längsausgerichtetem Hauptschwimmkörperpaar (2) symmetrisch zurmittigen senkrechten Längssymmetrieebenedes selben nebeneinanderliegenden Paars längsausgerichteter Hauptschwimmkörper (2) liegt, so dass diese drei Strukturelementarten sich dadurch auszeichnen, dass sie den Zusammenbau von Tretbooten mit zwei oder mehr Sitzplätzen durch die Verwendung von so vielen längsausgerichteten Hauptschwimmkörpern (2) plus einem wie Passagiere in dem zusammenzubauenden Boot gewünscht sind ermöglichen, und anschließender Wiederholung zu den Seiten hin und gegenseitige Befestigung aller Bauteile, Zubehörteile und Bauelemente für den Antrieb des Bootes und die Unterbringung eines einzelnen Passagiers, insgesamt so oft wie Anzahl Passagiere gewünscht ist, so dass bei Booten fürzwei oder mehr Passagiere jeder Passagier einen längsausgerichteten Hauptschwimmkörper (2) mit dem unmittelbar benachbarten Passagier teilt, wobei diese längsausgerichteten Hauptschwimmkörper (2) mittels Schrauben oder Stifte im gleichen Abstand zwischen jedem Paar befestigt sind und sich weiterhin dadurch auszeichnen, dass die Querträger (1) zwischen diesen drei Bauteilarten verschiedene mögliche und auswählbare Längen haben, wobei es eine für jede mögliche Anzahl Passagiere oder Sitze auf dem zusammenzubauenden Boot gibt, wodurch diese Fähigkeit den Zusammenbau von Booten für unterschiedliche Passagierzahlen durch seitliche Erweiterung ermöglicht, indem die Hauptschwimmkörper (2) immer in einem konstanten Querabstand zwischen jeweils zwei nebeneinanderliegenden und somit zwischen ihren jeweiligen senkrechten Hauptsymmetrieebenen zusammengebaut werden, mit der zusätzlichen Eigenschaft, dass die U-förmigen Längsplatten oder -stangen (3) im rechten Winkel sowohl mit den Querträgern (1) als auch mit den Hauptschwimmkörpern (2) verbunden und ineinander gefügt bleiben, und somit die strukturelle Steifigkeit durch die dreifache Verschränkung der drei jeweiligen waagerechten Ebenen, einefürjedeeinzelnedieserdrei Strukturbauteilarten, wobei jedes PaarderU-förmigen Längsplatten oder -stangen (3) gleichzeitig auf jedem Paar längsausgerichteter Hauptschwimmkörper (2) und den Querträgern (1) angeschlossen verbleiben, in symmetrischer Position zwischen jedem Paar nebeneinanderliegender längsausgerichteter Hauptschwimmkörper (2) wobei unter symmetrisch zu beiden Seiten im Verhältnis zur senkrechten Symmetrieebene in Längsrichtung derselben zu verstehen ist, in Kontakt mit diesen beiden Bauteilarten ruhend, wobei sie mit denselben verbunden bleiben, zusätzlich mit der Eigenschaft, dass jede U-förmige Längsplatte oder -stange (3) ihr längstes mittleres in Längsrichtung ausgerichtetes Segment in Kontakt und im rechten Winkel mit allen Querträgern (1) gleichzeitig in einer ausgewählten Querposition entlang derselben verbunden hat, während die beiden gleichen kurzen Quersegmente, welche ihrerseits wiederum mit dem vorangehenden längsten mittleren in Längsrichtung ausgerichteten Segment verbunden sind, sich in Querrichtung mit demselben längsausgerichteten Hauptschwimmkörper (2) verbinden, an den das ganze Teil anbindet, so dass die drei wichtigsten Strukturbauteilarten mit drei verschiedenen senkrechten Schrauben- oder Stiftgruppen (7, 13 und 16) untereinander verbunden sind, wobei jede jeweils zwei dieser drei Bauteilarten untereinander verbindet und welche eingesetzt werden, indem sie eine Reihe senkrechter übereinstimmender Löcher durchqueren (5, 6, 11, 12, 14 und 15), die in ihren Berührungsflächen vorhanden sind.
  2. Montageelemente nach Anspruch 1, welche sich dadurch auszeichnen, dass die Querträger (1) und die längsausgerichteten U-förmigen Stangen oder Platten (3) auf oder nahe der oberen Oberfläche der längsausgerichteten Hauptschwimmkörper (2) befestigt werden, wobei sie in Löcher bzw. Querschlitze (4) und (10) gesteckt werden, welche diese längsausgerichteten Hauptschwimmkörper (2) komplett von einer Seite zur anderen durchqueren, mit der Eigenschaft dass bei allen identischen U-förmigen Längsplatten oder -stangen (3) nach Auswahl der geeigneten Querposition für die Anbindung der längsten mittleren in Längsrichtung ausgerichteten Segmente, die Länge der beiden gleichen kurzen Quersegmente für alle und jede [Längsplatte oder-stange] im Vorfeld so genau berechnet ist, dass sie bis zur mittigen senkrechten Symmetrieebene des Hauptschwimmkörpers in Längsrichtung (2) reichen, an welchen jedes Teil angebunden wird, wodurch bei jenen Hauptschwimmkörpern in Längsrichtung (2), die von zwei nebeneinandersitzenden Passagieren in Booten mit mehreren Sitzplätzen geteilt werden, zwei identische U-förmige Längsplatten oder -stangen (3) sich den gleichen längsausgerichteten Hauptschwimmkörper (2) teilen, wobei sie gegenseitig perfekt aneinander angebunden sind ohne Überschneidung untereinander zum Zweck eines guten Zusammenbaus, sie jedoch gleichzeitig seitlich miteinander Kontakt behalten, um untereinander zur Verstärkung der Struktur mehrsitziger Boote zusammenzuwirken.
  3. Montageelemente nach Anspruch 2, die sich dadurch auszeichnen, dass Kurbelwellen (21) in identischer Anzahl wie Sitze vorhanden sind, jede Kurbelwelle mit einem Pedalpaar (25) ausgestattet ist und die gleiche Abstandslänge zwischen den Enden der Arme (24) wie die der senkrechten Längssymmetrieebenen zweier nebeneinanderliegender, längsausgerichteter Hauptschwimmkörper (2) aufweisen, mit der Eigenschaft, dass jede Kurbelwelle (21) zwei identische Schaufelräder (22) besitzt, die durch ihre Mitten symmetrisch auf dem Rundeisen oder der Stange (26) jeweils am Ende der beiden Arme (24) jeder Kurbelwelle (21) eingefügt, aufgesteckt oder eingefädelt werden und die in den Freiräumen zwischen den Pedalen (25) und jedem längsausgerichteten Hauptschwimmkörper (2) des Tretbootes eingegrenzt bleiben,
  4. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 3, die sich dadurch auszeichnen, dass die Rundeisen oder Stangen (26) an den Kurbelwellen (21) am Ende ihrer Arme (24) eine im Querschnitt quadratische oder polygonale Endung bzw. Bearbeitung besitzen und dass die seitlichen Schaufelräder (22) jeweils ein Loch quer durch die Mitte (27) mit der gleichen Querschnittsform aufweisen, wodurch die Kurbelwellen (21) und die Schaufelräder (22) sich zu einem einziger Körper vereint drehen, mit einem sehr schnellen Montagesystem obwohl sie nicht mit Schrauben oder Stiften gesichert sind.
  5. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 4, die sich dadurch auszeichnen, dass die beiden Rundeisen oder Stangen (26) mit quadratischem oder polygonalen Querschnitt am Arm jeder Kurbelwelle (21) in zwei Kugellager oder Kunststoffteile mit zylindrischer Symmetrie (30) durch ein mittiges koaxiales Loch gesteckt werden, das diese mit dem gleichen Querschnitt wie die quadratischen oder polygonalen Rundeisen oder Stangen (26) der Kurbelwellen (21) jeweils komplett durchquert, wodurch beide Teile perfekt ineinander passen und ihre gegenseitige Drehung verhindert wird, mit der Eigenschaft, dass die Länge dieser Kugellager oder Kunststoffteile mit zylindrischer Symmetrie (30) gleich oder ein wenig kürzer als die Breite quer durch den längsausgerichteten Hauptschwimmkörper (2) im Verbindungsbereich mit den Kurbelwellen (21) ist.
  6. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 5, die sich dadurch auszeichnen, dass jedes dieser Kugellager oder Kunststoffteile mit zylindrischer Symmetrie (30) durch ein zylindrisches Loch mit dem gleichen Durchmesser gesteckt wird, das in ein weiteres kastenförmiges Teil (31) gesetzt oder gelocht wird, welches das gegenseitige Drehen verhindert und vollständig entlang seiner Hauptachse durchbohrt ist, wobei die Länge dieses kastenförmigen Teils (31) gleich oder ein wenig kürzer als die Breite quer durch den längsausgerichteten Hauptschwimmkörper (2) im Verbindungsbereich mit den Kurbelwellen (21) ist, wodurch sie in die Schlitze (32) passen, die an den längsausgerichteten Hauptschwimmkörper (2) oben vorn eingebracht sind, was ein Verschieben und das eventuelle Abhandenkommen des Teils in Längs- und Querrichtung verhindert, jedoch die Einführung von oben zur Ankoppelung der kompletten Antriebsvorrichtung ermöglicht.
  7. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 6, die sich dadurch auszeichnen, dass jede Antriebsgruppe, die jeweils aus einer Kurbelwelle (21), zwei Schaufelrädern (22) und zwei seitlichen Kugellagern oder Kunststoffteilen mit zylindrischer Symmetrie (30) die sich innerhalb zweier kastenförmiger Teile (31) frei drehen eingebaut wird, indem sie von oben eingesetzt wird, wobei die Enden in die entsprechenden Aufnahmeschlitze (32)eingeführt werden, welche jeweils quer oben vorn an den längsausgerichteten Hauptschwimmkörper (2) eingebracht sind, und wobei diese Antriebsgruppe mit zwei Schiebeabdeckungen (33) in ihrer Position gesichert wird, so dass sie nicht nach oben herausgenommen oder herausfallen kann, wobei diese Schiebeabdeckungen auf Führungen oder Rippen (34) stecken und gleiten, die an den längsausgerichteten Hauptschwimmkörper (2) angebracht sind und jeweils mit mindestens einem Stift oder einer Schraube (35) gesichert wird.
  8. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 7, die sich dadurch auszeichnen, dass alle Antriebsgruppen seitlich untereinander in Serie geschaltet zusammengeschlossen werden können, so dass sie sich zu einer Einheit verbunden drehen können, da sich die nebeneinanderliegenden Antriebsgruppen jeweils eins der Kugellager oder Kunststoffteile mit zylindrischer Symmetrie (30) und eine der kastenförmigen Aufnahmeteile (31), die jeweils auf den von beidenAntriebsgruppen gemeinsam genutzten Hauptschwimmkörpern in Längsrichtung (2) angebracht sind, teilen können.
  9. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 8, die sich dadurch auszeichnen, dass jeder längsausgerichtete Hauptschwimmkörper (2) heckseitig ein Steuerruder (19) angebaut hat, das auf einer senkrechten Drehachse in einem Rohr oder senkrechten Loch (39) mit einer Schraube oder einem Stift (41) befestigt ist, mit der Eigenschaft, dass dieses Steuerruder (19) einen oberen Teil in Form von zwei waagerechten Zwillingsrollen (42) mit mehreren Haken oder Ösen (43) und mehreren Drehanschlägen (44) besitzt, deren Funktion darin besteht, alle auf dem Boot befestigten Steuerruder (19) mit Seilen oder Kabeln (45) miteinander zu verbinden und ihre Richtung und Drehung zu synchronisieren.
  10. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 8, die sich dadurch auszeichnen, dass jeder längsausgerichtete Hauptschwimmkörper (2) mehrere Löcher auf der oberen Oberfläche zwischen den Querstreben (1) und der vorderen Schiebeabdeckung (33) besitzt, auf welcher mit Hilfe von Schrauben (47) eine einzige senkrechte Säule (46) auf einem längsausgerichteten Hauptschwimmkörper (2) befestigt werden kann, der unter den am Tretboot vorhandenen Hauptschwimmkörpern ausgewählt wurde, um zum Steuern des Bootes einen Steuerhebel oder ein Steuerrad (48) aufzunehmen, welches längs dieser Abdeckung auf dieselbe geschoben werden kann und das in zwei aufeinander folgenden, aneinandergereihte Rohre (52) gesteckt wird, die in Fahrtrichtung des Bootes liegen.
  11. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 10, die sich dadurch auszeichnen, dass es einen Steuerhebel oder ein Steuerrad (48) gibt, welches wiederum mit einer Stange oder einem Rundeisen (51) mit quadratischem oder polygonalen Querschnitt verbunden ist, das sich drehen und in Längsrichtung des Boots verschieben kann, indem es sich in zwei aufeinander folgenden, aneinandergereihten Rohren (52) verschiebt, die auf dem oberen Teil der senkrechten Säule (46) angebracht sind, und welches in dieser Position gehalten wird, indem es durch zwei weitere zylindrische Rohre, Buchsen oder Kugellager (53) geht, welche ein Loch mit dem gleichen Querschnitt wie der Querschnitt der Stange oder des Rundeisens (51) des Steuerhebels oder Steuerrads besitzen, um diese zu drehen, wenn letzteres sich dreht, mit der Eigenschaft, dass zwischen den beiden zylindrischen Rohren, Buchsen oder Kugellagern (53) ein Abstand vorhanden ist, in welchen ein spulenförmiges Teil (54) mit zylindrischer Symmetrie eingesetzt wird, welches ein koaxiales Innenloch mit dem gleichen Querschnitt jener zylindrischen Rohre, Buchsen oder Kugellager (53) aufweist sowie zwei Ringe oder Haken zur Verknotung oder Einhängung der Seile (49) für das Mitziehen und die Synchronisierung der Ruder (19).
  12. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 11, die sich dadurch auszeichnen, dass die Seile (49) zur Steuerung des Steuerruders (19) geschützt durch eine senkrechte Säule (46) laufen, welche den Steuerhebel oder das Steuerrad (48) halten, sowie geschützt durch längsliegende Führungen, Rohre oder Rippen (50), die an den längsausgerichteten Hauptschwimmkörpern (2) vorhanden sind, die neben oder in der Nähe eines Teils in Form einer waagerechten Doppelrolle (42) enden, das oben auf das Steuerruder (19) des selben Hauptschwimmkörpers in Längsrichtung (2) gesetzt wird, so dass diese Seile (49) mit Knoten, Ösen oder Haken (43) an dieses Teil in Form einer waagerechten Doppelrolle (42) oder an das Steuerruder (19) festgebunden sind.
  13. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 12, die sich dadurch auszeichnen, dass zwischen jedem Paar nebeneinanderliegender längsausgerichteter Hauptschwimmkörper (2) und in dem Freiraum zwischen den Pedalen (25) und den an die Kurbelwelle (21) angeschlossenen Schaufelrädern (22) ein kleiner vorderer Schwimmkörper (17) mit wenig Tiefgang oder niedriger Höhe und mit leichter Bugform befestigt werden kann, der über die Wasseroberfläche gleitet und somit zusätzlichen Auftrieb leistet und die Füße des Passagiers vor Wasser, Wellen und Spritzern schützt, mit der Eigenart, dass solch ein vorderer Schwimmkörper (17) durch waagerechtes Verschieben vom vorderen Teil des Tretbootes aus angeschlossen werden kann, indem er unter der Drehachse der Kurbelwelle (21) ungehindert und kollisionsfrei durchgeschoben wird.
  14. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 13, die sich dadurch auszeichnen, dass bei jedem vorderen Schwimmkörper (17) zwischen jedem Paar längsausgerichteter Hauptschwimmkörper (2) eine waagerechte gebogene Stange (37) deren Enden C-oder U-förmig auf 180° gegeneinander gebogen sind, mit der Eigenschaft, dass jedes dieser Enden in ein Loch eingeführt und geschoben wird und dort anschlägt, das den gleichen Querschnitt hat und welches in Fahrtrichtung des Bootes in den Schiebeabdeckungen (33) vorhanden ist, die ihrerseits auf den oberen Teil der zwei nebeneinanderliegenden längsausgerichteten Hauptschwimmkörper (2) gesetzt werden, die sich wiederum zu beiden Seiten des betrachteten vorderen Schwimmkörpers (17) befinden.
  15. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 14, die sich dadurch auszeichnen, dass der hintere Teil des vorderen Schwimmkörpers (17) mit zwei Z-förmig gebogenen Stangen (38) mit zylindrischem Querschnitt befestigt ist, welche beidseitig und symmetrisch zur senkrechten Symmetrieebene in Längsrichtung von jedem Paar benachbarter längsausgerichteter Hauptschwimmkörper (2) befestigt sind, wobei eines der gebogenen Enden in einen röhrenförmigen Behälter oder eine röhrenförmige Aufnahme gesteckt ist, die quer durch jede Schiebeabdeckung (33) geht, in welcher die Z-förmig gebogene Stange (38) sich drehen kann, um solchermaßen ihr anderes freies Ende in einen Schlitz oder eine ähnliche Verschiussvorrichtung einzuführen und zu sichern, welche im hinteren Teil des vorderen Schwimmkörpers (17) angebracht ist, um diesen an der Hauptstruktur des Tretbootes zu verankern.
  16. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 15" die sich dadurch auszeichnen, dass mindestens einer der vorderen Schwimmkörper (17) in seinem hinteren Teil einen Innenhohlraum oder eine Innenaushöhlung mit zylindrischer oder ähnlicher Symmetrie im oberen Bereich besitzt, welche waagerecht und senkrecht zur Fahrtrichtung des Bootes ausgerichtet ist, mit der Eigenart, dass sie die freie Drehbewegung der darin untergebrachten Kurbelwellen (21) und Pedale (25) sowie der Füße der Passagiere, ungehindert und kollisionsfrei ermöglicht.
  17. Montageelemente nach Anspruch 1 und mindestens einem Anspruch nach den Ansprüchen 2 bis 15, die sich dadurch auszeichnen, dass mindestens einer der vorderen Schwimmkörper (36) seitlich und / oder rückseitig zum Wasser hin offen ist, so dass der Passagier seine Füße ins Wasser stecken kann und dass optional eine oder zwei waagerechte symmetrische Flächen zum Gleiten über das Wasser vorhanden sind.
EP07822879.8A 2006-08-01 2007-07-31 Anordnung und kopplungselemente für pedalbetriebenes ein- oder mehrsitzboot mit schaufelrädern Not-in-force EP2070814B1 (de)

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ES200601880U ES1064408Y (es) 2006-08-01 2006-08-01 Elementos de montaje y union para patines acuaticos de una o varias plazas propulsados por pedales y ruedas de paletas.
PCT/ES2007/000471 WO2008023083A1 (es) 2006-08-01 2007-07-31 Elementos de montajey unión para patines acuáticos de una o varias plazas propulsados por pedales y ruedas de paletas.

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ES1065789Y (es) * 2007-06-04 2008-02-01 Leon Jose Nieto Pequeño patin acuatico monoplaza plegable, propulsado por pedales, transformable en carrito para su transporte
ES2405704B1 (es) 2010-09-11 2014-03-26 Jose Nieto Leon Conjunto de elementos de montaje y unión de embarcaciones y estructuras flotantes de construcción modular

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FR1544093A (fr) Omnium Commercial Et Ind Medit Perfectionnements aux propulseurs nautiques et aux embarcations équipées de tels propulseurs
US2287706A (en) * 1941-09-02 1942-06-23 Elwood R Perry Bicycle boat
GB1441399A (en) * 1973-10-17 1976-06-30 Cox H C Water-borne devices
US6311632B1 (en) * 1999-11-10 2001-11-06 Roland H. Noel, Jr. Portable pontoon craft
US6691633B1 (en) 2002-08-20 2004-02-17 The Coleman Company, Inc. Pontoon paddle boat

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ES1064408Y (es) 2007-06-16
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WO2008023083A1 (es) 2008-02-28
EP2070814A4 (de) 2012-09-12

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