Watercraft such as kayaks, pedal boards and the like are normally steered by a rudder centrally positioned at the rear of the watercraft and pivot about a vertical axis. The rudder is steered using a steering handle which is either part of the rudder mechanism itself or is connected by cables to the rudder with the steering handle being located adjacent the operator of the watercraft who is normally positioned midway on the watercraft in a seated or standing position. Propulsion is provided by pedaling as disclosed, for example, in Ketterman, U.S. Pat. No. 6,022,249 and Czarnowski, et. al. U.S. Pat. No. 9,475,559, the disclosures of which are expressly incorporated herein by reference.
The rudder can also rotate about an axis transverse to the longitudinal dimension of the watercraft to be raised out of and lowered into the water, as described in the “Kayak Rudder” discussion posted to the Instructables.com do-it-yourself membership website's Outside projects section by an unidentified member in 2015. A hyperlink to this article can be found in the Information Disclosure Statement filed herewith.
In the prior art, the steering handle and the rudder are typically mechanically joined or built into the watercraft and require tools and extensive manual manipulation for their removal.
We have developed a stand-alone modular system whereby both the steering mechanism and the rudder mechanism can be easily slipped off, and on the watercraft, which after system removal, allows for the simplified carrying and storage of the watercraft.
The system can also be transferred from one watercraft to another.
A stand-alone modular removable rudder system for watercraft having a rudder comprising a steering handle coupled to a quick release mechanism adapted to releasably secure said steering handle to said watercraft in proximity to the operator, said system further comprising, a rudder mount adapted to be coupled to the rear of the watercraft by a quick release mechanism adapted to releasably secure said rudder mount to said watercraft, said rudder being carried by a rudder support pivotal about said rudder mount and cables operatively connecting said steering handle to said rudder mount whereby the steering handle can be operated to steer the rudder.
A stand-alone modular removable rudder system for watercraft having a rudder comprising a steering handle coupled to a quick release mechanism adapted to releasably secure said steering handle to the watercraft in proximity to the operator, said system further comprising a rudder mount adapted to be coupled to the rear of the watercraft by a quick release mechanism adapted to releasably secure said rudder mount to said watercraft, said rudder being carried by a support pivotal about said rudder mount, and cables operatively connecting said steering handle to said rudder mount to pivot said rudder to steer, said rudder being rotatable on said rudder support about a transverse axis and a pull cord connected to said rudder support whereby the rudder can be rotated about said transverse axis and stowed on the deck of the watercraft.
Turning to the drawings.
One of the main advantages of the system is that it is a stand-alone, modular system which is capable of being quickly installed and removed from a variety of watercraft. This “quick-removal” feature is particularly important for inflatable craft that need to be deflated and folded up tightly as well as other watercraft where they are transported on the roof of a car and a rudder system makes this more difficult or dangerous. The rudder is raised and lowered using a single line that imparts a pivoting motion on the rudder blade and the weight of the blade carries it through to either a stowed or lowered position. The bungee keeps the rudder in either position. The overall rudder system of the invention comprises the quick release mechanisms for attaching the rudder and steering handle to the watercraft, the driving mechanism for the rudder which uses rotating quadrants, compression tubes and tensile cables and the integrated up/down feature using a single pull line.
The stand alone modular removable rudder system comprises a rudder 10, rudder mount 12, rudder support 14, a projection 16 on the rudder mount and rudder retainer 18 which provides a quick releasable connection of the rudder mount 12 and rudder 10 to the watercraft. These elements are operated by tensile cables 20 and 22 generally shown in
The embodiment of the removable rudder systems of
The steering handle housing retainer 38 is affixed to the tubular frame 30 of the chair by a bolt inserted through hole 40. The underside of the housing 34 has a slot for releasably receiving member 36 formed on retainer 38.
The retainer 38 has a hole 42 which receives a spring loaded quick release pin 44 which enters a hole in the housing 34. By pulling pin 44, the retainer 38 is easily separated from housing 34.
The embodiment of
Turing to the stand-up pedal board 50 embodiment shown in
The stand-up embodiment is propelled by the operator stepping up and down on pedals 64 to operate flaps 48,
The free-standing system of this invention can be quickly and readily released simply by pressing the quick release spring button 69 and pulling hollow tubular retainer 54 carrying housing 52 and steering handle 32 from the handlebar 60. In the case of the stand-up embodiment, the free end of the handlebar 60 serves as the retainer for the steering handle and its housing.
In both the sit down and stand up embodiments, the pedals and operator are positioned somewhat midway on the watercraft at the usual distance forward of the rudder.
Referring to the rudder 10 and its quick release, the rudder is carried at the rear end or transom 66 of the kayak, pedal board or other watercraft.
The rudder support 14 along with the rudder 10 is pivoted side to side to steer on vertical shaft 70 carried by rudder mount 12 by the operation of tensile cables 20 and 22 using the steering handle.
The rudder 10 can also be rotated about transverse shaft 72 in rudder support 14 by means of pull rope 74 to raise and lower. The pull rope 74 imparts a pivoting motion to rudder support 14 and rudder 10 about shaft 72. The weight of the rudder 10 carries it through either the stowed or deployed position. The bungee cord 76 keeps the blade in either position, while allowing the rudder to rotate somewhat freely to the rear when striking an obstacle in the water and avoiding rudder damage.
The quick release of the rudder is shown in
In use, the retainers 18 and 38 can be mechanically attached to the rear surface of the watercraft and the chair tubing, respectively. These elements need not be removeable as they do not interfere with the transport and storage of the watercraft. The handlebar and its upright and the chair can be removed from the watercraft and transported and stored separately.
The quick release elements projection 16, slidable member 36 and hollow tubular member 54 are elements of the quick release mechanism of the system of this invention and complement the retainers or handlebar to complete the quick release function.
This application is a continuation application of and claims priority to U.S. application Ser. No. 16/948,128, filed Sep. 3, 2020.
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Number | Date | Country | |
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20220063789 A1 | Mar 2022 | US |
Number | Date | Country | |
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Parent | 16948128 | Sep 2020 | US |
Child | 17477932 | US |