227 Tennyson St., Thousand Oaks, CA 91360 (805) 427-1128 Mark@DisabledAdventurers.com
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This Adaptive Paddling Fixture incorporates a straight Ash wood boom. One end of the boom is firmly attached to the front deck at the appropriate angle. The boom supports quite a bit of weight, allowing the paddler to rest the entire weight of his arms on the paddle and lean or pull against the paddle. The flexible boom is adjustable in length and allows the paddle to be dipped and raised as needed for paddling. The main features of this design are that it holds the paddle up for the disabled kayaker and it always keeps the paddle blades oriented in the vertical position.
The following picture my latest design for the 'paddle-lock'. This design incorporating the swivel-caster is my latest development and has a much smoother action than the original plate version. This will be the basis for all my future 'paddle-lock' designs.
Note: This photo shows the earlier version that uses a Hinge Plate.
Swing the Paddle Boom up for easy access. Do Remember to Hold onto it!
See my latest Boom design below for a plan that eliminates the need for the
wood Hinge Plate and the two bolts that secure the Boom to it (shown above).
Once boarded, the Paddle is lowered and
secured by tightening the Rear Wingnut.
Tighten the others again while you're there!
The Business End! Tape the Paddle Shaft Securely with Duct Tape.
Center the Paddle on the Boom, Not the Paddle-Lock.
Ensure the Paddle Blades are Vertical when the
Paddle is in the Mid-Stroke Position (90 degrees).
This drawing gives details for making the aluminum Mounting Plates as shown above.
See below for the latest Universal design!
Start with a 10" X 10.5" plate of 0.090" Aluminum.
On each 10.5 inch edge, measure in 7" in opposite direction for each side.
Mark and cut the diagonal line between those two points.
Mark and drill all holes, as shown, prior to bending.
Measure 1.75 inches in from the uncut edge, mark and bend 90 degrees.
Be sure to bend one in the opposite direction of the other!
Secure the wooden "Hinge-Plate" or (in the case of my very latest Boom design
shown below) the Boom itself between the plates, then secure the Plates to
the Deck Plate, adjusting their position lengthwise to suit the paddler.
Here's my very latest (as of march 23, 2007) design for the aluminum mounting plates.
adjustability for both the sit-on-top fixture and for the decked boat
fixture shown on the main web page. This design is also specifically for
use with the latest boom design which eliminates the need for the wooden
Hinge-Plate. Each plate is made from a 12" by 7" plate of 0.90 aluminum.
A bolt through Hole A provides a place for the boom to rest in the up position
during boarding and exiting the kayak. The holes at B and C provide a pivot
point for the forward end of the boom. The holes at D are where the boom rests
in the operating position, and the bolt through D can be used to snug the boom
in place. The holes at E are for mounting to the Deck Plate.
Here's my very latest plan for the Boom...
The thicker end is 1 inch thick, and several holes are drilled
through at 2" spacing to allow for further length adjustment.
This design eliminates the need for the wooden Boom Hinge
Plate and two expensive stainless-steel mounting bolts!
Additionally, Hole A in the Aluminum Mounting Plates (the original design shown
above) can be repeated below and aftwards at 1 and 2 inches distance to allow
more adjustment still, as illustrated with Holes B and C in that drawing.
Holes at B and C illustrate the addtional positions in the new design .
In the case where other than the end hole in the Boom is used,
a slot can be cut into the main Deck Plate to allow the Boom end
to swing down into it. Proper positioning of this slot would catch
the Boom end just right to hold it up in a tipped forward position
This last picture depicts (with my own artistic rendering) what the
Deck Plate would look like with the slot cut in and using the latest Boom
design which eliminates the Hinge Plate (and the two bolts and wing-nuts
that hold the Boom to it).
The method of attachment I used on this Malibu Two can be used on ANY kayak. My latest design greatly improves on this concept! Eventually, I'll use the latest method to attach the fixture to a Frenzy which will round out the size categories for kayaks on which we have tried the fixture. For paddlers desiring a whole lot more stability still, I'll probably give it a try on the Drifter too.
A Few More Illustrations To Help...
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