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
  • B63H16/08—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
  • 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 present invention relates to a propulsion means for small boats, allowing to move ailon ⁇ é or seated by a paddle movement generated by the rotation of a crankshaft.
• French patents 935,110 (STRINGA) and 2,389,531 (from ELLOY) are already known in particular for propulsion devices with blades; the first involves a complex mechanism of chains and sprockets in order to animate the blades in a movement of circular vertical translation; however, such a movement is not conducive to good efficiency of the propulsion; the second considerably improves the efficiency of the propulsion and simplifies the mechanism; both have the disadvantage of requiring that the blades be close enough to the frame which supports the mechanism, and that their use is therefore practically limited to float boats.
• the object of the present invention is to provide a mechanism which, while retaining the advantages of the device of the second patent cited, allows the blades to be offset far enough from the chassis so as to make the mechanism adaptable to practically all types commercially available inflatable boats; another object is to provide a chassis structure making this adaptation simple and practical.
• the device according to the invention is a propulsion system driven by blades which can be attached to the front or the rear of a small boat and especially the tires, in which one can lie down to pedal.
• This propellant essentially comprises a chassis fitted with means of attachment to the boat, for example a rectangular tubular frame to which fixed supports for a pedal board are connected, and bent rods articulated either at one end on the pedal board and bearing the other end of the propeller blades, as well as the connecting rods connected to one of their ends on
• the length of these connecting rods is such that they form with the bent rods carrying the blades a deformable quadrilateral so that when each pedal describes a circle, the elbow of each blade holder rod and the corresponding part describe a vertical curve of the ellipse type; in this way the rotation of the pedal causes a continuous and regular movement of the propeller blades, with good stability and a minimum of space.
• the chassis consists essentially of a pair of bars, preferably tubes, connected at their end to a so-called articulation rod, and at an intermediate point of their length.
• a so-called seat plate to form an A-shaped structure
• said chassis also consists of an arm articulated on said plate and of a part forming a pedal support; the pedestal support is connected to said articulation rod; the aforementioned arm is provided with a wedging member intended to receive and wedge at another end of the arm said pda ' lier support; the arm and the bottom bracket can be assembled to form a rigid superstructure contained in a vertical plane perpendicular to the plane of said A-shaped structure.
• the relationship of said bars with said plate is achieved by a pair of bolts passing through a pair of lights in an arc formed in said plate, so that the angle formed by the bars between them is adjustable.
• said articulation rod serves as a fixed point of articulation to said connecting rods constituting sides _dudi deformable quadrilateral
• Fig. 1 is a perspective view of the first embodiment
• Fig. 2 is a geometric sketch showing the movement of the blades
• Fig.3 is a view similar to the previous of the second embodiment
• Fig.4 is a perspective representation of a third particular embodiment of the adaptation means of the propulsion device
• Fig.5 is a detail in elevation of the device of the previous figure.
• the device comprises a rectangular tabu ⁇ 1 frame provided with means 2,3 for fixing to the boat (not shown).
• On each side of this frame are fixed two triangles 4 supporting the crankset 5; on each pedal 6 is articulated a rod 7 divided into two parts, the second 8 of which carries a propulsion blade 9.
• the rods 7 and 8 are controlled by connecting rods 10, 11 which are articulated in points 12, 13 of these rods and at a common point 14 of the support 4; these points are chosen so as to form an irregular quadrilateral 7, 8, 10, 11 studied so that the circular movement of each pedal 6 causes an approximately elliptical vertical displacement of the corresponding blade 9.
• the length of the rod 8 between its elbow 15 and the articulation 13 of the connecting rod 11 is smaller than the length of the " rod 10 between its articulation 12 on the rod 7 and its articulation 14 on the sup ⁇ port 4 while the length of the rod 7 between its elbow 15 and the articulation 12 is smaller than the length of the rod 11 between its articulation 13 and 14.
• the distance between points 12 and 15 will be 58cm, and between points 13 and 14 66cm, between points 12 and 14 34cm and between points 13 and 15 20cm about. Thanks to this dimension ent of the deformable quadrilateral, the blades 9 will have a regular verti cal movement of diving in the water and exit.
• the connecting rods 10 and 11 have been represented in the form of piano strings or double tri gles articulated at 14 on the lateral support and at 17 on the central fixing tab 3.
• the connecting rods 10 and 11 have been represented in the form of piano strings or double tri gles articulated at 14 on the lateral support and at 17 on the central fixing tab 3.
• each rod 7 is placed on the outside of the pedal 6. This also allows the crossing of wider blades, including more effective.
• each connecting rod 10, 11 formed by two arms of piano wire 10, 10a, 11, 11a making a right triangle whose height side crosses the part of the corresponding rod 7 and takes the direction of the hypostenuse.
• the ends are turned over to line up on the same axis parallel to the axis of the pedals and the part turned over at the top of the triangle.
• On one side they pass through the upright joining the bottom bracket, on the other in a fixing block 3 connecting the tire to the front tube of the frame.
• the articulation of the bottom bracket 5 is made at a point 18 of the rod 19 held by the support 4.
• the rod 7 takes its fulcrum on the top 20 of a gantry above the pedals, while the connecting rods 10, 11 are articulated from the pedal.
• the upper connecting rod 10 is articulated, not on the pedal, but on the connecting rod 11 at a distance close to the pedal.
• the connecting rods are fairly rigid in wood or plastic.
• a propulsion mechanism similar to that of fig.1 and 2 is supported by a chassis having a particular structure allowing- remarkably easy adaptation to a standard type inflatable boat, or raft.
• This chassis is essentially composed of two tubular bars 21 and 22, a seat plate 23 and a hinge rod 24-; the bars 21, 22 are connected at their ends to the articulation rod 24, and, at a certain intermediate point in their length, to the plate 23, so that the bars 21, 22 and the plate form a structure in form of A; the bars are fixed to the plate by means of bolts 38 passing through slots 39 in an arc of a circle with which the plate is provided so that the angle formed by the bars / is adjustable.
• an arm 25 the upper end of which comprises a wedging member 26 intended to receive and wedge an elongated part 27 known as "pedal support"; the part 27 is connected at one end to said articulation rod 24, while it comprises, at its other end, a bearing 28 for the passage of the axis of the crankset 6; the part 27 is wedged, in its intermediate part and by means of the member 26, at the upper end of the arm 25; the arm 25 and the bottom bracket 27 thus form, being connected at their lower end to the A-shaped structure, a rigid triangular superstructure contained in a vertical plane perpendicular to the plane of the A-shaped structure.
• inclination of the bottom bracket 27 can be adjusted by sliding the support in the setting body 26, for example depending on the load of the boat and in such a way that the ellipse described by the blades has an optimal sinking below the surface of the water.
• the articulation rod 24 also serves as a fixed point on which the connecting rods 10, 11 are articulated for one of the vertices of the deformable quadrilateral mentioned above. It should also be understood that after having * loosened the wedging member 26 and the bolts 38, the assembly constituted by the bars 21, 22, the plate 23, the articulation rod 24, the arm 25, the support bottom bracket 27, can be folded in a plane occupying a minimum space in thickness and width.
• the rod 7 can be removed from both the connecting rod 10 and the pedal 6, all of the coupling elements can also be folded down in the same plane.
• the bars 21, 22 are intended to be engaged in handles 29 which are generally provided with inflatable boats. Incidentally the end of these bars can be used to support a rudder such as 30.
• a device such as one of those described above can be used, associated with a tire, a round buoy, or a canoe, as well for leisure only as a life-saving appliance, thanks to the efficiency of propulsion on calm and rough water. Its lightness, its folding and its small size allow it to be accommodated on a ship as a means of rescue or service.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Ocean & Marine Engineering (AREA)
• Toys (AREA)
• Transmission Devices (AREA)
• Catching Or Destruction (AREA)
• Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
• Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9224719

Family Applications (1)

Country Status (16)

Families Citing this family (10)

Citations (4)

Family Cites Families (3)

• 1979
  • 1979-04-25 FR FR7910464A patent/FR2454960A1/fr active Granted
• 1980
  • 1980-04-14 GR GR61675A patent/GR67299B/el unknown
  • 1980-04-23 BR BR8008463A patent/BR8008463A/pt unknown
  • 1980-04-23 IT IT48493/80A patent/IT1128528B/it active
  • 1980-04-23 JP JP50092280A patent/JPS56500409A/ja active Pending
  • 1980-04-23 GB GB8040148A patent/GB2065052B/en not_active Expired
  • 1980-04-23 WO PCT/FR1980/000064 patent/WO1980002270A1/fr not_active Ceased
  • 1980-04-23 CH CH962580A patent/CH639038A5/fr not_active IP Right Cessation
  • 1980-04-23 PT PT71130A patent/PT71130A/pt unknown
  • 1980-04-23 US US06/220,065 patent/US4353703A/en not_active Expired - Lifetime
  • 1980-04-24 BE BE0/200350A patent/BE882951A/fr not_active IP Right Cessation
  • 1980-04-24 AR AR280803A patent/AR223375A1/es active
  • 1980-04-24 CA CA000350636A patent/CA1145622A/fr not_active Expired
  • 1980-04-25 OA OA57094A patent/OA06520A/xx unknown
  • 1980-04-25 ES ES491458A patent/ES491458A0/es active Granted
  • 1980-12-19 SE SE8009003A patent/SE444550B/sv unknown

Patent Citations (4)

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