® "Convertible Wind Surfing Board"
®
P20040394
®
OHIM-HABM 
Licence available !
As unit or conversion kit
Standard bicycle, on new generation
Wide Style Wind Surfing Board
Unskilled can use side
floaters on old type narrow board
Wind surfing +
Cycling = Water Cycling
Two sporting & recreational requisites – three purposes:
1.
Conventional wind surfing
2.
Conventional bicycle riding
3.
Water biking
Great attraction, wherever was exposed
Very fast riding on wide style light boards
Original
board
Prepared board for conversion kit
Conversion kit on the board Wind
surfing board, ready for water cycling
Conversion kit
Lower transmission
Upper transmission
Front bicycle carrier
Steering pilot
Easy preparation for conversion
References:
1. "INPEX"
USA Silver medal
2. "BIS"
UK Silver medal
3. "INOVA"
Croatia Silver medal
4. "NAUTICA" Croatia
Silver medal
"CONVERTIBLE WIND SURFING
BOARD"
AS UNIT OR CONVERSION KIT
-
ORIGINAL PURPOSE, WIND SURFING
- ADDITIONAL, SECOND PURPOSE, RIDING BICYCLE ON WATER WITH ASSISTANCE OF TOOTH PROFILE BELT TRANSMISSION, POWERED BY PROPELLER
·
Two sporting &
recreational requisites – three purposes.
1.
Conventional bicycle riding.
2.
Conventional wind surfing.
3.
Water
biking.
Wind surfing board is foreseen for surfing
during the windy weather, while during the sunny and quiet windless day
is completely useless.
For using the same board, during the quiet
windless weather in sport and recreational purpose, conversion kit can
be assembled and any bicycle can be used for water cycling by removing
road wheels only. That means the bicycle in this case becomes
dual-purpose equipment too.
Preparation for installation of convertible kit on
board is very simple. It could be done by board owner himself, in case
when convertible kit is purchased separately with installing
instructions. Procedure in preparation for installation of convertible
kit is: cutting the appropriate holes in the board, where the plastic
cups and guides will be glued by expanding foam. With such preparation,
Wind Surfing Board is ready for water bicycle riding or wind surfing.
Preparation
for installing bicycle on board is very simple too, quick and does not
take more than fifteen minutes. That also means how the purpose of the
board can be changed several times a day, depending of weather and mood.
In all ready installed cups and guides, the following attachments have
to be inserted: carrier of the bicycle front wheel fork with the
universal joint and steering pulley, carrier of the bicycle rear fork
with seven sprocket-wheel and belt toothed cog-wheel, guides for the
steering rope, steering rope with rope tensioners and adjusters,
steering pilot with the steering pulley. On the bottom side of the
board, the transmission assembly is inserted in to the cups with belt
toothed-cog, toothed belt, propeller and belt adjusting carriers of the
transmission. On such prepared board, the bicycle can be placed with all
its elements except road wheels and tighten with quick releasing wheel
bolt on the front carrier and wheel nuts on the rear carriers.
The new generation,
Wide Style Wind Surfing Boards are very stable, because of its wideness
and flat bottoms. They are not easy to turn over
especially knowing that water cycling take place only on windless
weather. But if for any reason we want to secure the board of turning
over for 180 degrees, the safe floater can be placed in the middle
triangle of the bicycle frame with quick connectors, which will prevent
the board to turn over for more than 90 degrees. From this position,
board can be easily straightened up.
When choosing bike for water cycling (if we all ready do not posses
one) it is recommended to choose high quality ALU frame bicycle, not
only because of possibility to get rusty but because of its weight and
shock absorbers. The ride with such chosen bike will definitely give
very pleasant and comfortable ride.
To ride bikes
with such suspension, the carrier of rear fork is designed to allow the
frame movement up and down as shock absorbers works. The nuts-bushes of
the rear hub shaft will enable that.
Such installation of the bike on the board, gives much more
pleasure in riding than ordinary recreational enjoyment. That is to say,
placing the bike with its chain, front sprocket-wheels and front and
rear gear selectors, we choose the transmission ratio and propeller RPM
to adjust force to our ability or to obtain maximum speed. The other
words, choice of transmission ratio and speed are almost unlimited.
Knowing, that on late bicycle models, ratio between front and rear chain
pulley is 5:1 and on this transmission, ratio between upper and lower
toothed cog is 2:1 and ability of bicycle rider in average shape to turn
pedals 1 1/2 times in second, calculation shows, that in that moment
propeller makes 900 RPM. Considering, that with this RPM we are turning
propeller with diameter of 200 mm and three blades under the angle of 30
degrees, appears very impressive picture about the speed we achieve. In
any case, for riders with higher demands that is not all. Transmission
can be modified by exchanging sprocket-wheels with higher ratio ones and
increase ratio between upper and lower toothed cogs. Also, propeller can
be modified by increasing its blades angle. With such modifications
water cycling on the wind surfing board can easily become a sport
discipline.
Great
advantage of whole system is its simplicity and lightness. Beside that,
the all turning parts are spinning on the bearings which maximally
reduce any frictions and resistance. The upper bearings are greased,
while lower transmission is fixed in sealed oil housings. The weight of
whole system is around four kilograms. The total weight of whole unit,
with new generation biggest board and alu frame bicycle is around 30
kilograms.
www.waterbike.auto-mart.hr
