GB2399790A

GB2399790A - A pedal powered propeller driven boat

Info

Publication number: GB2399790A
Application number: GB0316238A
Authority: GB
Inventors: Martin Lister
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-24
Filing date: 2003-07-11
Publication date: 2004-09-29
Anticipated expiration: 2023-07-11
Also published as: GB0306710D0; GB0316238D0; GB2399790B

Abstract

A boat driven by an air propeller 17 is powered by pedal power. The pedals 5 are connected to the propeller by a chain 7 via a chain wheel 9 which allows for horizontal chain movement to be converted into vertical chain movement. A rudder 4 is operated by a steering wheel 3. The vessel might also be used on snow, ice or even tarmac. The rudder may be replaced with a ski for running on snow. It may be necessary to attach wheels to the craft for it to run on tarmac.

Description

Pi--f-la ' Amp'' or r Or. yes crib car The Pedal Propeller liven Boat is a

boat which is powered by pe'1a1 power and. which has a propeller as on all.

aircraft bu* not on an aircraft to drive it along flue to arceler=ted air f'-lof c.a-:sc by the prc.peller. It may, used ON land perhaps or Karma.or in especially showy conditions on SHOW plains, ice etc Or on the water.

Fig ' sn.ows the Pedal Propeller Driver Act Plaint.] driven by a driver.

The scrams has a cJhainwheel 6 in Fig 3 which has a bearing race whose outer sheaf is bolted to top chain housing ancl whose central section rotates with tile pedals axle and is rotated by pedal s 5 in Fig 3 which have pedal arms try increase torque and foot stirrups so that the feet do not fall off the pedals, A char; as 7 n Fig 3 connects chainwheel 6 in Fig 3 to chainwhee1 9 in Fig 3.

The chain and chainwheels are covered by chain guard 8 in Fig 3 and by the seat l in Fig 3 and by a housing to the rear of the seat. The chainwheel 9 in Fig 3 has a bearing race whose centre is fixed and the outer sheaf of the bearing race is attached to two chainwheels one is 9 in Fig and in front of chainwheel 9 in Fig 3 is another chain wheel 10 in Fig which chain ll in Fig 3 passes over, thus horizontal chain movement is ccynvertd into vertical chain movement. Chain ll passes to an assembly which rotates the propeller, 17 in Fig 3. The cog assembly has a chainwheel which rotates by way of a bearing race, in Fig 4 which is also l3 in Fig S. The outer sheaf of the bearing race in Fig 4 is fixed and it is the censure of the bearing race 2 in Fig 4 which rotates and is attached to the chainwheel which has chain l in Fig 4 passing over it. The chainwheel which is rotated by way of chain l in Fig 4 passing over it has at its centre an axle 3 ir1 Fig 4 which is connected to a cog 4 in Fig 4. Cog 4 in Fic} is shown as Cog 14 in Fig S. The cog in Fig has Clearing race 5 ire Fig whose outer sheaf is fixed and those centre rotates. Cog 4 in Fig 4 is attached to cog in Fig 4 at 6 In Fig and when cog 4 in Fig 4 rotates so then does cog in Fig 4.

Cog 7 in Fig 4 is shown as cog 15 in Fig 3. Cog 7 in Fig 4 has bearing race in Fig whose outer section is fixed and whose centre.s attached to and relates with cog 7 in Fig 4. Bearing race 8 in Fig 4 is shown as bearing race lC in Fig 3. The centre of bearing race & in Fig is attached to the propeller by way of c bolt.

The propeller is awarded by propeller guard lS in Fig 3 for safety. Tile Cog assembly and chainwheels lO and 9 in Fig and chain l in Fig 3 are housed fly ttlSe cog assembly and chain and chairwheel housing l? in Fig 3.

The Pedal Propeller Dri ven Boat is shaped to cut through the Teeter with efficiency or to travel along a surface such as snow or even tarmac (wheels,J be attach=- t; t2r,= crafty. It- 1 the Ice =.i^. in proportion to its l.engtn tne dispiacemenc of che craft in the water in terms of the height the base of the craft is below- the water level is lordly therefore the Graft may be used in shallow water such AS low depth rivers and the driver e,5 the vehicle can ice assured of dry ride skimming along the surface of the water. The redder need not be longer than fifteen centimetres though obviously if it were try be longer it would produce a more direct and powerful tUtCi.n^Q affect due to greater torque brc,ught about by more area of rudder making contact witL1 water and hence direct ing the craft. along the desired path. For land travel the rudder may be detached and wheels attached instead with a gap in between with axle' wheels attached to the side of the craft at the rear. Fo,- travel on snow the rudder may be detached and a ski attained instead with tne forward section of the craft upraised. The front sectic.n of the craft the forward floQririg of the craft being at a higher height above the ground than what goes behind and slopes down to what goes behind to enable wheels to rotate freely or a ski while not compromising good and efficient water flow in boat mode.

The steering cog housing 7 in Fig 3 and also shown in Fig 2 has enclosed cogs for- waterproofing and to stop dirt and other contaminants getting into the cog mechanism which if they were to get into the cog mechanism may hamper its efficient operation. The inside of the steering coq housing is shaped SUCH that it accepts and retains in their correct positions the internal dynamic rotateable parts in their correct allgnmenc. The cog arrangement at the steering wheel column end is such that the steering column is slightly at an angle up from the horizontal and has at its other end a steering wheel 3 in Fig 3 of plastic moulding.

The cog arrangement converts near horizontal rotation about line of axis movement of the steering wheel to vertical movement at the secondary cog 4 in Fig whose teeth engage with the cog that is attached to the steering column 3 in Fig 2. These cogs are both conically shaped. The secondary cog is attached to a plastic rudder in Fig a, via a bolt fixture of rudder to cog which turns the -raft lert or right when -he steering wheel is rotated left or right so steering of the steering wheel is relative and corresponds to turning affect of craft due to appropriate rudder rotation. To keep the cogs in position inside the steering cog housing attachment of cogs could be but not necessarily by way of enclosed bearing races, just the shaping of the cog housing could be used alternatively. Cog 3 in Fig is kept in position by discs i in Fig 2. Cog 4 in Fig 2 is kept in position by discs in fig 2. Thus steering wheel column in Fig is attached to rudder c.o,umn 6 in Fi.: i. 'e ruddier on the Wheels with able 0- the ski could be,sttsched to the vertically r. :tating steering coo by way of a sheaf which may simply be screwed to the vertically rotating steering cog or be Cornea intro place via a hole rur, ning thr,.h the sheaf centre dieter of the sheaf and through the diameter o' the verir.ally rotating steering cog --Rich therl are conn=,-teo aligned and fixed together by a boll running through both sets of holes.

If particles which may be in powder ='o.=l Ed stainless steel are applied and mixed in with plastic material then a mouldabe plastic material which is waterproof and rustproof and which has the strength of metal stainless steel may be created. This may be ABS but instead of rubber particles applied to, the plastic material stainless steal for the toughening of the plastic. This composite material could be used for such items as the steering cog housing.

The craft has upraised edges for buoyancy and to keep the craft and the occupant shielded from the Taster.

All the metal parts including the sprocket chainwheels, pedal arms' pedals, pedal foot stirrups, steering wheel column, steering wheel feasibly, steering cogs, bearing races, bolts, nuts, chains are of stainless steel to prevent rusting. The rest of the crest is of waterproof and light tough sdurable plastic capable of taking stresses and strains, possibly ARS plastic.

injection mo-ulded.

The driver of the craft sits comfortably on the seat with his or her feet forwards turning the pedals and with arms outstretched and hands clasping the steering wheel to turn the craft wherever he or she wishes. Passengers may sit to either side of the driver or behind the driver.

The seat and chain guards are removable b\7 release of bolts so the; the chain and bearing races and cogs sprocket chanwheels mechanical parts needing lohricatio< or greasing may be lubricated or grease put on them and the steering ccg housing may be opened up again by bolts being loosened anci removed to lubricate or grease bearTrg races and cogs for maintenance or replacement.

The steering column cog housings is split into two halves length wish vertically and to get inside i't it is removed from the craft by loosening stainless steel bolts from above the craft -hick go into each or the split sections vertically, at the sides of the split sections, and then dividing the sections by loosening bolts horizontally placed which join the sections.

Bolts attach the chain guards and the seat top or seats top to the craft from above.

Rolts attach the bearing races arid al: the bolting placements and fix then at the appropriate positions which go into encapsulated in plastic stainless steal nuts we car, use in'ecti;?< lo-lel placement tecnicues (for finis to be Lione correct positional placement of nuts could be by bolts and ther1 the plastic injection moulded around these positions.=n ones removed of these i temporary bolts, shape of rents Is what keeps The nuts in positic,n and stress/strain of CAN plastic. whi.A surrounds them minimal) so that the plastic does not become deformed, weakened, wore away and does not experience stresss rai ran Deformation arid their is always art acceptors nut to receive the bolt which Man be counted on producing a t-:< between parts for as ong as is desired.

There are scale plans from the side are.] frc.m above of Pedal Propeller Driven Boat.

Claims

Pedal Propeller Driven Boat Claims 1. A pedal propeller driven vehicle

with chain connection pedals to a propeller which can travel on the surface of the water.
2. A pedal propeller driven craft with chain connection pedals to a propeller which can travel on a surface such as tarmac perhaps on roads.
3. A pedal propeller driven vehicle with chain connection pedals to a propeller which can travel on the surface of a: plain of snow ice eta. ;
4. Multi chain connection power transmission system pedal sprocket chain wheels to propeller via cog connections for I conversion horizontal chain movement to vertical chain movement in the vehicle.
5. Use of bearing races at the centre of the sprocket chain wheels.
6. Chain housings throughout as a safety feature to stop harm coming to the user of the pedal propeller driven vehicle due to getting hands etc caught up in the mechanism.
7. A cog bearing races sprocket system which rotates axles through 90 degrees in the same horizontal plane for transmitting chain rotation into propeller motion of the vehicle.
8. Wheels may be attached or detached from the steering axle by removal of the sheaf of the rudder to steering axle connection by directly unscrewing the two or by removal of a bolt that connects the two and then by the same form of attachment probably most effectively screw on to fit screw off to remove or change a connection steering axle to a ski for use of the vehicle on snow or ice or steering axle to an axle connection at the centre of the axle, the axle having wheels at either end of it for a pedal propeller driven boat that can travel on a solid surface land.
9. Sections such as the steering cog housing could be of a plastic material with particles of stainless steel applied or perhaps stainless steel in powder fond applied to the plastic to toughen it.
10. A steerable human powered pedal propeller driven vehicle for a single person or for more than one person which is simply designed to cut costs and for maximum efficiency for use on land, water, snow or ice etc.
11. Fully waterproof design.
12. Totally safe design completely guarded so fun can be had by young or old alike or transportation in total safety.
13. Enclosed cogs for waterproofing and to eliminate foul up of the cogs and cog clogging in steering mechanism which is direct steering wheel to rudder, ski or centre of axle which has wheels at both ends.
14. Ergonomically shaped seating which may be for one person or more than one person which has one of the chains for transmission pedal power to propeller motion running under it.
15. Width large in proportion to length and flat bottomed to: ensure the craft can even be used in shallow water or to skim; along the surface of snow due to wide weight dispersal area.

For stability balance and poise in sailing or skidding on snow or ice etc. The front end of the vehicle is upraised above I ground level to supply suffice ent room for the turning ski, rudder or axle with wheels at both of its ends.
16. For waterproofing and elimination of contaminants such as dirt from the mechanism all cogs, chains, bearings, sprockets are enclosed for safety and shielding,
17. Ease of maintenance by easy access to: bearing races; cogs; chains; sprocket chain wheels; removalJreplacement of; rudder, ski, or axle with wheels at both ends used for turning; removal/replacement of propeller. This is for ease of replacement if necessary or lubrication or greasing due to parts which detach from the craft by removal of bolts from encapsulated nuts.