Replaceable, reflecting kayak rudder system with pedal and trim adjusting features

Information

  • Patent Grant
  • 6739276
  • Patent Number
    6,739,276
  • Date Filed
    Tuesday, August 8, 2000
    24 years ago
  • Date Issued
    Tuesday, May 25, 2004
    20 years ago
Abstract
An improved rudder system and pedal system for use in a watercraft such as a kayak. The rudder assembly includes a rudder housing having a push rod operably linked to a rudder blade positioned in the housing. A rudder control cord passes through a fairlead located at the top of the push rod and terminates at the trailing edge of the rudder blade. Upon tensioning of the rudder cord, the push rod acts against a notch in the leading edge of the rudder blade, which causes rotation of the rudder blade in addition to the rotational force on the trailing edge of the rudder blade due to movement of the control cord. A feature of the rudder assembly is the incorporation of a spring element in the rudder blade that provides an extension bias to the rudder blade, and user selectable pre-loading thereof for varying the rotational bias. The pedal system includes a toe control pivotally attached to a foot brace that is slidingly located in a track. A rudder cable arrangement is deflected by rotation of the toe control along the length of the track, thereby permitting actuation of the rudder system independent of the location in the track of the pedal system. A feature of the pedal system is the incorporation of a lockable positioning rod connected to the foot brace at one end and extending past the aft end of the track so that a user can remotely position the foot brace and retain its position. Another feature is the use of a trim control assembly to vary the length of cable between the foot brace and a mechanical ground, thereby permitting the user to remotely select the rudder blade trim, without having to modify the position of the control pedals.
Description




FIELD OF THE INVENTION




The present invention relates to rudder and steering systems for kayaks, and more particularly to kayaks having rudder systems that include a field replaceable rudder blade that may be remotely and easily raised or lowered during use, and remote rudder adjustment and trim structures associated with an improved pedal system.




BACKGROUND OF THE INVENTION




Stern mounted rudder assemblies are commonly used on kayaks. In some assemblies, the rudder blade is pivotally connected to a rigid mount attached to the stern of the kayak. The mount and rudder blade are designed so that the rudder blade extends downward into the water at all times during use.




In some assemblies, the rudder blade is attached to a retracting mechanism that enables the user to manually “kick-up” or rotate the rudder blade rearward and upward when approaching the shore or submerged hazards. Traditionally, a control line or, cord is passed through a fairlead and terminates at the trailing portion of the rudder blade. The fairlead acts as a fulcrum point so as the line is tensioned and retracted, the blade is brought towards the fulcrum. Such assembles are disclosed in U.S. Pat. Nos. 3,575,124, 4,046,093, and 4,319,538.




Given the fixed location of the fairlead, it is often time difficult to initially retract the rudder blade, and once so moving, the velocity of the retracting blade is frequently too fast, thereby subjecting the components to excessive forces and possible breakage. A further deficiency of the prior art is that the amount of force applied to the rudder blade to keep it extended into the water is not adjustable. Quite often it is fixed or not biased.




Another problem with currently designed rudder systems is that when the rudder blade is broken, replacement is time consuming and often requires multiple hand tools since many blades are located in a rudder housing using bolt and nut combinations.




In view of the foregoing, there is a need in the field to have a rudder assembly that permits a user to remotely retract the rudder blade with minimal force, to be able to field replace a rudder blade without the necessity of tools, and to modify the extension or downward bias of the rudder blade with ease.




Other deficiencies exist in the prior art that relate to the steering aspect of a rudder system. Conventional pedal control systems rely on a “C” track in which reciprocates a pedal having a cable or strap attached to the steering bracket or tiller of the rudder system. In these systems, the pedal acts as both a foot brace and as a means to control rudder movement. When equal pressure is applied to both pedals, there is no rudder movement and the pedals become momentarily fixed in position. When unequal pressure is applied to the pedals, there is rudder movement and the pedals move in relation to the applied force.




These systems, however, are cumbersome to adjust when a kayaker attempts to use a kayak having been adjusted for the leg length of the previous user and frequently stick due to accumulation of debris in the lower portion of the track. It often requires that the straps or cables be manually adjusted, often at a location away from the kayaker's arms and without the aid of length indexes. The result is often that numerous attempts must be made, within the cramped space of the cockpit, to adjust the pedal positions so that they are symmetrical and result in a neutral rudder setting. This task becomes especially difficult and even dangerous if attempted while the kayak is afloat.




Frequently when paddling in a constant direction for a considerable distance, it is desired to counteract a cross wind or current. A kayaker can do this by positioning the rudder in a constant angle relative to the axis of the vessel. A problem with the current rudder steering systems is that no provision is available for establishing a constant rudder position without frequent user input; the kayaker must apply just the right amount of control to the rudder so as to maintain the desired deflection and thus heading.




It therefore is apparent that there is a need to have a trim adjusting means for establishing and maintaining a rudder trim position without frequent intervention or manipulation of the kayak steering assemblies.




SUMMARY OF THE INVENTION




An object of the present invention to provide a rotating rudder blade for a kayak.




Another object to provide a rudder system that enables the rudder blade to be easily rotated or retracted with minimal force from a remote location.




A further object is to provide a rudder system that enables the rudder downward or extension force to be adjusted and which enables damaged or broken rudder blades to be easily and quickly replaced without resort to tools.




Still a further object is to provide a pedal adjustment system that allows the kayaker to independently brace his or her legs and actuate the rudder system.




Yet a further object to provide a method and mechanical arrangement for establishing a desired rubber trim position without the need for frequent user adjustment, and to do so quickly and conveniently.




Another object of the invention is to provide a pedal adjustment system that permits a user to conveniently and remotely adjust the location of a pedal residing in a track.




The rudder assembly of the invention comprises a rudder housing having a first and a second side, joined together by a common leading edge. Each side has an inner surface, an outer surface, the mentioned leading edge, and a trailing edge. The two sides are generally spaced apart and parallel to each other so as to receive an upper portion of an inserted rudder blade. Each side also defines a hub hole for receiving a rudder blade shaft.




A key feature of the invention relates to the means by which an inserted rudder blade can be retracted from a downward, extended position to a trailing (horizontal) or fully upward, retracted position. Instead of relying upon a fixed fairlead or fulcrum point, the fairlead or fulcrum point acts on a portion of the rudder blade to cause the same to move relative to the rudder housing. Movement of fulcrum is moderated by two pairs of guide members formed in the sides of the rudder housing. The guide members can take the form of tracks (either a groove defined by the inner surfaces of the rudder sides or a pair of lands extending from the inner surfaces of the sides to define a surface groove) or slots extending the sectional width of the rudder housing sides. The fulcrum is preferably a rod or other rigid member that has guide pins or similar followers located on or in the rod so that each guide pin locates in a respective pair of guide members. In a preferred embodiment, the guide members are slots and the rod has an upper pin and a lower pin, as well as a fairlead at the upper end of the rod to receive a control line or cord.




The rudder blade that may be incorporated with the aforementioned rudder housing defines a rudder shaft hole and has a notch formed in the upper leading edge of the blade. The notch receives the lower end of the rod so that when actuated by the user, compression forces presented to the rod causes movement of the rod, which translates into rotation of the blade as the rod traverses the guide members. In this manner, the control line, which terminates at the trailing edge portion of the blade, not only applies tension to the trailing edge of the blade so as to cause rotational movement of the blade, but also moves the rod, thereby causing rotational movement of the blade as it acts on the leading edge.




Another feature of the invention relates to the field replaceability of the rudder blade. In the present invention, a constant extension or downward biasing force is presented to the rudder blade. This bias is overcome by the user by applying tension to the control line. The bias is preferably accomplished by using a torsion or flat spiral spring. Such springs have an inner tang and an outer tang. The outer tang locates in a portion of the rudder blade and the inner tang engages the rudder shaft, which is rotationally fixed relative to the rudder housing. By pre-loading the spring when the, blade is in the extended, downward position, a restoring bias is created that resists rotation to the trailing position or the fully retracted position.




To avoid interference with the rudder housing by the spring, a cylindrical recess is preferably formed in one side of the rudder blade concentric with the rudder shaft hole to receive the spring. The rudder shaft is formed to engage the inner tang of the spring, and is held rotationally fixed to the rudder housing by means of a plurality of registration pins formed in a flanged hub of the shaft that engage with corresponding registration holes defined by the adjacent rudder housing side. To ensure sufficient engagement between the registration pins of the flanged hub and the registration holes, the pins preferably extend slightly beyond the holes, and avoid contact with the rudder blade due to the presence of an annular groove formed in the blade concentrically about the rudder blade shaft hole. If adjustment of the pre-load spring bias is desired, a greater number of holes are formed as compared to the number of pins, whereby the shaft can be incrementally rotated and engaged with the rudder housing.




The pedal assembly of the invention comprises a track, preferably having an open channel section, in which resides a foot brace to which is pivotally attached a toe control. By providing for separate components to act as a foot brace and toe or rudder control, user leg movement or forces intended to transmit motive forces to the kayak will not unintentionally result in rudder actuation. When rudder actuation is desired, only low effort toe actions are required; the user's mid-sole and heel remain in contact with the foot brace.




In a preferred embodiment, the toe control acts upon a cable system that is linked at one end to a rudder assembly and to a mechanical ground at a second end. Upon user actuation, the toe control causes the cable to deflect, thereby causing a corresponding tensioning and/or movement of the cable, which results in rudder movement. Because the cable preferably extends the length of the track in which the foot brace and toe control travel, constant cable deflection will occur at any point along the track upon a consistent toe control operation.




The pedal assembly includes further features such as asymmetrical pedal extension and flexion due to an upper cam portion of a foot brace cable guide, and a means for remote location of the foot brace in the track. The later feature is accomplished by linking a rigid linear member or rod at one end to the foot brace and selectively engaging the rod in a portion of the track to temporarily attach the rod to the track or other mechanical ground. Preferably, the rod has a series of lands that create grooves that engage a slot defined in an end piece attached to the track. An ancillary benefit to this configuration is that a user can index the position of the foot brace based upon the number of exposed grooves extending beyond the slot.




While it is possible to accomplish an asymmetrical trim of an attached rudder assembly by placing a length adjusting connector between the cable end and the mechanical ground, another feature of the invention is directed to a symmetrical trim assembly that permits a user to adjust a rudder trim in a single operation. By terminating both cable ends (the ends opposite from the rudder engaging ends) from a pair of pedal assemblies in a rotatable hub, a user can simultaneously take in one cable and pay out the other cable. The trim assembly preferably includes a hub having a generally common location for terminating a pair of cables, and an outer housing defining a pair of cable fairleads. By positioning the hub in the housing so that the termination points are generally away from the pair of fairleads, retraction of one attached cable results in the extension of the opposite cable.




Additional features of the invention relate to multiple mounting possibilities, e.g., pintle mounting or bracket mounting, blade design, and other aspects of the invention that will become apparent upon inspection of the several drawings and following description.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of a kayak equipped with the invention;





FIG. 2

is a side elevation view of the rudder system showing the rudder in a running or extended position;





FIG. 3

is a side elevation view of the rudder system showing the rudder in a trailing position, and, in phantom, when the rudder system is in a fully retracted position;





FIG. 4

is side elevation view of the rudder housing detailing the position of an internal push rod when the rudder system is in a running position, and, in phantom, when the rudder system is in a non-running position;





FIG. 5

is a partial cross sectional plan view of the rudder in the rudder housing, detailing the interaction between the rudder blade, a torsion spring, a rudder shaft, and the rudder housing;





FIG. 6

is an exploded, perspective view of the rudder system and several mounting options using interchangeable tiller brackets;





FIG. 7

is a perspective view of an adjustable pedal system wherein a sliding pedal is located in a track and operates to deflect a rudder cable;





FIG. 8

is a front elevation view of the system of

FIG. 7

;





FIG. 9

is a side elevation view of the system of

FIG. 7

;





FIG. 10

is a partial cross sectional view of the system taken substantially along the line


10





10


in

FIG. 9

;





FIG. 11

is a schematic diagram showing the rudder cable routing and trim unit for providing adjustable pedals and remote trim control of the rudder system; and





FIG. 12

is a cross section view of an adjustable anchor connector used in a preferred embodiment.











DETAILED DESCRIPTION OF INVENTION




Rudder Components:




Turning then to the several drawings and particularly to

FIG. 6

, the overall components of rudder system


10


are shown. Rudder system


10


comprises rudder housing


20


, push rod


50


, rudder blade


70


, torsion or flat coil spring


90


, rudder shaft


100


, and steering bracket


12


or


14


. As best shown in

FIGS. 1-3

, rudder system


10


is mounted to the stern of a kayak either by way of a bracket or pintle mount (see FIG.


6


). Given the configuration of rudder housing


20


, either mounting means may be used only by having to change the tiller bracket.




Rudder housing


20


, as best illustrated in

FIG. 6

, comprises sides


22




a


and


22




b


, each having an inner surface


24




a


and


24




b


(obstructed), an outer surface


26




a


(obstructed) and


26




b


, leading edge portions


28




a


(obstructed) and


28




b


, and trailing edge portions


30




a


(obstructed) and


30




b


. Each side


22


defines respective upper guide slots


32


, lower guide slots


34


, and shaft holes


36


. Side


22




b


further defines a plurality of registration holes


38


. Mounting bracket receiving slots


40


are formed in the common leading edge portion


28


of both sides, and are intersected by leading edge bore


42


(see

FIG. 4

) so that pin


18


may be inserted there through to retain bracket


16


should a transom mounting method be desired. As an additional feature, enlarged threaded bore


44


is formed at the upper portion of bore


42


to receive a fastener, such as a bolt. In this manner, either tiller


14


with pintle or tiller


12


without pintle can be used, depending upon user preference for the mounting method.




Sides


22




a


and


22




b


are in spaced apart relation so as to receive rudder blade


70


and push rod


50


. Rod


50


has upper end


52


and lower end


60


. At upper end


52


, yoke


54


forms a portion of fairlead


58


as well as defining holes


56


in which guide pin


64


may be inserted. Lower end


60


includes collar


62


, which serves to located guide pin


64


as well as act on notch


74


formed in rudder blade


70


. Rod


50


is insertable in the space defined by sides


22




a


and


22




b


, and is held captive therein by the interaction between guide pins


64


and slot pairs


32


and


34


, as is best illustrated in FIG.


4


.




Turning then to

FIGS. 2-4

, the operation and interaction of rod


50


will now be described. During operation of a kayak equipped with the invention, rudder system.


10


will be in the running or extended position as shown in FIG.


2


. Upon the tensioning of control line


120


, a fulcrum environment is established at fairlead


58


. However, because rod


50


is permitted to translate along the path defined by slots


32


and


34


, and is only retained in its initial position (see FIG.


2


), by rudder


70


, which is rotationally linked to rudder housing


20


, rod


50


will translate towards leading edge


28


during initial tensioned movement of control line


120


. As a consequence of collar


62


interacting with notch


74


(see FIG.


6


), the motion of rod


50


from the running position to the trailing position, as shown in

FIG. 4

, causes rudder blade


70


to rotate upwardly to the trailing position as shown in FIG.


3


. In this manner, both the tension force in control line


120


at retention hole


78


and the compression force in rod


50


at notch


74


cause rotation of rudder blade


70


. Because of the increased mechanical advantage provided by rod


50


acting on blade


70


as compared to the mechanical advantage of control line


120


acting from fairlead


58


to retention hole


78


, and because of the compounding of these forces for a common effect, less user force is necessary to rotate blade


70


about shaft


100


.




When blade


70


achieves the trailing position as shown in

FIG. 3

, additional tensioned movement in control line


120


causes additional rotation of blade


70


until the fully retracted position (shown in phantom) is achieved. During this operation, rod


50


remains stationary and the only user induced rotational force presented to blade


70


is via control line


120


at retention hole


78


.




Another significant feature of the invention concerns the field replaceability of rudder blade


70


. Returning to

FIG. 6

, as well as

FIG. 5

, it can be seen, that rudder blade


70


interacts with torsion or flat coil spring


90


, rudder shaft


100


, and rudder housing


20


Spring


90


is located in cylindrical recess


84


formed in blade


70


. Spring


90


includes inner tang


92


and outer tang


94


. Inner tang


92


engages slot


110


formed in shaft


102


and outer tang


94


engages a hole formed in the inner surface of recess


84


. Rudder shaft element


100


includes the previously mentioned portions, as well as flanged hub portion


104


, knob portion


106


to provide a user with convenient means for rotation, registration pins


108


formed as an integral part of hub


104


, and hole


112


for receiving keeper or cotter pin


114


. Rudder shaft


100


is rotationally fixed relative to rudder housing


20


by means of the engagement of registration pins


108


in registration holes


38


. As a consequence of these engagements, shaft


100


remains rotationally fixed relative to rudder housing


20


, thereby linking rotationally movement of rudder


70


to housing


20


through spring


90


. Should a user desire to bias the blade, cotter pin


114


is removed from hole


112


, shaft


100


is removed so that registration pins


108


no longer engage registration holes


38


, knob


106


is turned clockwise to increase spring


90


pre-loading, and shaft


100


is re-engaged with rudder housing


20


.




Steering Components:




In addition to the improvements relating to rudder system


10


, the invention also concerns improvements relating to a steering system as shown in

FIGS. 7-12

.

FIG. 7

shows in perspective adjustable pedal and foot brace assembly


210


. Assembly


210


comprises toe control


220


, foot brace


230


, track


240


, adjusting, rod


250


, and cable


280


. Also a component of assembly


210


and shown in

FIG. 11

is trim adjuster


290


. Both toe control


220


and foot brace


230


slide on track


240


, meaning that cable


280


is deflected by a similar amount for any given actuation of toe control


220


regardless of their position on track


240


.




Referring to

FIGS. 8-10

, foot brace


230


comprises tread portion


232


, hinge portion


234


, track portion


236


, and cable guide or lower fairlead


238


. Track portion


236


is formed to slidingly engage track


240


and provide the required support for foot brace


230


and toe control


220


, including all forces transmitted by the user to the kayak. Located outwardly from track portion is hinge portion


234


. Hinge portion


234


provides a suitable configuration for linking foot brace


230


with toe control


220


. Finally, tread portion


232


provides a suitable surface for accepting the lower portion of a user's foot. The function of cable guide or lower fairlead


238


and upper cam portion


239


will be described below.




Referring to

FIGS. 7-10

, toe control


220


comprises tread portion


222


, hinge portion


224


, fairlead slot


226


, and turning block


228


. Toe control


220


is rotationally linked to foot brace


230


by way of hinge portion


224


, which are described as “C” shaped members that partially encircle hinge portion


234


of foot brace


230


. An optional spring element (not shown) can be inserted between the foot brace and the toe control to pre-load toe portion


220


. As with cable guide or lower fairlead


238


, the function of fairlead slot


226


, and turning block


228


will be described below.




Several features relating to toe control


220


as it interacts with foot brace


230


and cable


280


deserve special attention. First, hinge portion


224


has an angular profile so that during flexion (the pedal pivots aft towards tread portion


232


), hinge portion


224


will not interfere prematurely with tread portion


232


. Second, cable guide


238


includes upper cam portion


239


as is best shown in

FIGS. 9 and 10

. Upper cam portion


239


in conjunction with the angular profile of hinge portion


224


(turning block


228


is able to travel aft of cable guide or fairlead


238


) causes a differential in cable travel during extension and flexion of toe control


220


. Thus, an extending toe control


220


may move 1″ from its neutral position and cause rudder segment


282


to travel 1″, while the corresponding opposite toe control pedal, responding to a proportional 1″ cable travel, undergoes flexion of only ¾″ from its neutral position. This asymmetrical action and reaction is due to the progressively changing point of cable grounding on upper cam portion


239


during flexion and extension operation of toe control


220


, and the geometric location of turning block


228


relative to upper cam portion


239


.




It should be noted any structure that functions to guide or facilitate cable location, retention, or operation is sufficient for the purposes of the invention, and are generally referred to as guides or fairleads without-concern over the components physical structure, as will be appreciated by those persons skilled in the art.




Referring next to

FIG. 10

, track


240


has an upper, closed channel portion


242


and a lower, open channel portion


246


. Primary structural support for track


240


is achieved by closed channel portion


242


. In addition to support, this portion of track


240


has arcuate segment


244


that functions to shield open channel


246


from water and debris. Open portion has several open segments


248


that support the pedal and brace. These segments, however, are formed to minimize the collection of debris as will be appreciated by inspecting the slope of each segment.




As is best shown in

FIGS. 7 and 8

, at either end of track


240


are end caps. Forward end cap


260


provides cable guide


262


that functions to redirect cable


280


towards the kayak stern, while aft end cap


264


has adjusting rod slot


266


, adjusting collar nut


268


and cable guide


270


. Both caps are user removable and are fastened to track


240


by conventional means such as by one or more screws.




To permit a user to adjust the location of the pedal and brace, adjusting rod


250


is attached to track portion


236


of foot brace


230


at proximal end


252


and extends through adjusting rod slot


266


as is best shown in FIG.


7


. Slot


266


is characterized as a “T” shape to permit free reciprocating movement of adjusting rod


250


when it is at the upper portion thereof, but is prevented from such movement when positioned in the lower portion thereof. A series of lands


256


form grooves


258


in rod


250


wherein the sectional width of rod


250


has greater spanning lands


256


than the width of slot


266


at its lower portion. A leaf spring (not shown) can be disposed between track


240


and rod


250


so as to bias rod


250


towards the lower portion of slot


266


. In such a configuration, a user dislodges rod


250


from the lower portion of slot


266


, translates the rod until the desired position is reached, and relocates the rod, all from the cockpit area of the kayak proximal to the user. A further benefit to using this configuration is that the location of foot brace


230


is indexed and known to the user, i.e., the number of grooves


258


exposed aft of end cap


264


is directly proportional to the location of foot brace


230


.




Logically, other forms of rod retention means can be used, such as clamps, cams, pinch rollers, and other means mounted to the track or similar mechanical ground (the hull, for example) for temporarily fixing the longitudinal movement of a rod to a structure. Moreover, it is contemplated that alternative means for accomplishing this adjusting function are possible. Such alternatives include the use of a retraction arrangement (an elastic cord or spring) whereby foot brace


230


is continuously biased towards, for example, end cap


260


, and a line extends aft from the foot brace to a convenient location for user manipulation (the aft end of track


240


or a cockpit location).




Turning then to

FIG. 11

, the functionality of the steering control can be seen. Cable


280


comprises rudder cable segments


282


, trim cable segments


284


, and sheathing


286


. By adjusting the functional length of trim cable segment


284


, the functional length of rudder cable segment


282


is proportionally adjusted, resulting in movement of an attached rudder assembly without operation of the pedal assemblies. Thus, trim adjuster


290


links each trim cable segment


284


by way of an internal drum (not shown) so that when one segment


284


is taken into adjuster


290


, the other segment


284


is paid out. Trim adjuster


290


also contains friction elements (not shown) that prevent the drum from being rotated by the low hydrodynamic forces commonly acting on the rudder. However, the friction is low enough so that the adjuster may easily be moved by hand or by when the rudder is impacted by a hard object. The resulting configuration permits a user to modify the rudder position independently of cable deflection resulting from pedal operation. In this manner, a “neutral” rudder position can be selected by the user without need for pedal operation.




Lastly, and referring to

FIG. 12

as well as

FIG. 11

, an adjustable cable anchor is shown. Anchor


300


comprises major sides


302




a


and


302




b


, web portions


304


and


306


to connect the two major sides, and wedge element


308


. Wedge element


308


resides in a space defined by major sides


302




a


and


302




b


, and web portions


304


and


306


. Upon tensioning of rudder cable segment


282


, wedge element


308


is brought to bear against web portions


304


and


306


, thereby increasing the compression between the wedge element and these portions. The resulting outcome is a self-crimping anchor assembly. For a user to adjust the location of the anchor on the cable segment, the user need only reverse the tension so as to dislodge the wedge element from its locked position, reposition the cable, and again apply tension to the cable. For added retention abilities, a cable groove can be formed in the peripheral surface of wedge element


308


as well as the interior walls of web portions


304


and


306


. By using a cable groove, an inserted cable is more surrounded and less deformed when compressed by the action of the wedge element against the web portions.



Claims
  • 1. A rudder assembly for use in a watercraft comprising:a rudder housing having a first side including an inner surface, an outer surface, a leading edge and a trailing edge, and a second side including an inner surface, an outer surface, a leading edge and a trailing-edge wherein the first and second sides are in spaced-apart and generally parallel relation to each other, and are joined to each other at their respective leading edges; a first pair of symmetrical guide members defined by the respective first and second sides of the rudder housing and located at upper portions of each respective side; a pair of symmetrical hub holes defined by the first and second sides of the rudder housing for receiving a rudder shaft; and a push rod slidingly engageable with the first pair of symmetrical guide members.
  • 2. The rudder assembly of claim 1 further comprising a second pair of symmetrical guide members defined by the respective first and second sides of the rudder housing and located generally between the lower leading edge portions of each respective, side and the hub holes, wherein a portion of the push rod is slidingly engageable therewith.
  • 3. The rudder assembly of claim 2 wherein the first pair of symmetrical guide members comprise a pair of slots defined by the respective first and second sides and the second pair of symmetrical guide members comprise a pair of slots defined by the respective first and second sides.
  • 4. The rudder assembly of claim 2 wherein the push rod has an upper end and a lower end, and further comprises an upper pin located at the upper end to engage the first pair of symmetrical guide members and a lower pin located at the lower end to engage the second pair of symmetrical guide members.
  • 5. The rudder assembly of claim 1 wherein the first pair of symmetrical guide members comprise a pair of slots defined by the respective first and second sides.
  • 6. The rudder assembly of claim 1 wherein the push rod has an upper end and a lower end, and further comprises an upper pin located at the upper end to engage the first pair of symmetrical guide members.
  • 7. The rudder assembly of claim 1 further comprising a rudder blade having a notch formed in an upper portion thereof to receive a lower portion of the push rod.
  • 8. The rudder assembly of claim 1 further comprising a removable tiller bracket attachable to an upper portion of the leading edges of the first and second sides.
  • 9. The rudder assembly of claim 1 further comprising a rudder blade defining a hole, a biasing element linking the rudder blade to the rudder housing, and a hub having a rudder shaft for rotationally connecting the rudder blade to the rudder housing.
  • 10. The rudder assembly of claim 9 wherein the rudder blade defines a cylindrical recess concentric about the rudder hole on a first side of the rudder blade and the biasing element is a torsion spring having one end attached to the rudder blade and another end linked to the rudder housing, the spring being locatable in the cylindrical recess.
  • 11. The rudder assembly of claim 9 wherein the hub further comprises at least one registration pin and the second side of the rudder housing defines a plurality of registration holes disposed about the hub hole.
  • 12. The rudder assembly of claim 9 wherein the rudder blade defines a recess at an outer leading edge peripheral portion thereof to receive a lower portion of the push rod whereby compressive actuation of the push rod causes rotation of the rudder blade about the rudder shaft.
  • 13. A rudder for use in a watercraft comprising:a blade having a leading edge and a trailing edge, and a first major side and a second major side; a rudder shaft hole defined by the blade having an axis and extending from the first major side to the second major side; a cylindrical recess defined by the first major side concentric about the rudder shaft hole; and a tang receiving hole defined by the rudder blade.
  • 14. The rudder of claim 13 further comprising a torsion spring sized to fit within the cylindrical recess and having an outer tang for engaging the tang receiving hole.
  • 15. The rudder of claim 13 wherein an upper portion of the rudder blade leading edge defines a notch.
  • 16. A foot operated steering assembly for use in a watercraft having a forward end and an aft end that includes a rudder to thereby define an axis, the assembly comprising:a first track segment; a first foot brace slidingly engageable with the first track segment comprising a track portion; a first toe control pivotally linked to the first foot brace whereby the toe control is pivotal about an axis substantially orthogonal to the forward-aft axis; and a first foot brace adjusting means for permitting a user to slidingly modify the location of the first foot brace in the first track segment.
  • 17. The steering assembly of claim 16 wherein the first foot brace adjusting means comprises a rigid linear adjusting member connected to the first foot brace at one end and engageable with a portion of the first track segment to permit remote user location of the first foot brace in the first track segment.
  • 18. The steering assembly of claim 17 wherein the rigid linear adjusting member comprises a plurality of land elements that are selectively engageable with a portion of the first track segment.
  • 19. The steering assembly of claim 16 wherein the first foot brace adjusting means comprises an elastic-member connected to the first foot brace at one end and to a mechanical ground at another end, and a first flexible tension member extending from the foot brace to permit remote user location of the first foot brace in the first track segment.
  • 20. The steering assembly of claim 16 further comprising a first rudder control cable having a first end and a second end wherein the first end is linkable to a rudder system and the second end is linkable to a mechanical ground wherein a portion of the cable contacts the first toe control and is deflectable thereby during operation of the steering assembly.
  • 21. The steering assembly of claim 20 further comprising a first cable adjusting member operatively linking the second end of the cable to the mechanical ground whereby tension in the cable can be increased or decreased by the cable adjusting member if the first end of the first cable remains stationary.
  • 22. The steering assembly of claim 20 further comprising a rudder trim adjustment assembly having a housing defining a volume and at least one cable hole, and a rotatable hub sized to fit within the housing volume and having a first cable retention hole defined thereby and means for permitting a user to selectively rotate the hub, wherein the second end of the first cable is locatable in the first cable retention hole defined by the hub and tension in the cable can be increased or decreased by the trim adjustment assembly by rotation of the hub if the first end of the first cable remains stationary.
  • 23. The steering assembly of claim 16 further comprising an aft end cap defining a slot for receiving a portion of the first foot brace adjusting means whereby sliding movement of the first foot brace is selectively limited by a user.
  • 24. The steering assembly of claim 16 further comprising a second track segment; a second foot brace slidingly engageable with the second track segment comprising a track portion; a second toe control pivotally linked to the second foot brace; and a foot brace adjusting means for permitting a user to slidingly modify the location of the second foot brace in the second track segment.
  • 25. In a watercraft having a cable operated rudder system comprising a rudder linked to a mechanical ground; a first cable extending from the rudder to a rudder control assembly also linked to a mechanical ground; and a second cable extending from the rudder to the rudder control assembly, a rudder trim adjustment assembly mountable to a mechanical ground, comprising:a housing defining a volume and at least one cable hole; and a hub sized to fit within the housing volume and having at least one cable retention hole defined thereby and means for permitting a user to selectively rotate the hub wherein at least the first cable engages the hub and the hub remains stationary during operation of the rudder system.
  • 26. A foot operated steering assembly for use in a watercraft having a forward end and an aft end that includes a rudder, the assembly comprising:a first track segment; a first foot brace slidingly engageable with the first track segment comprising a track portion; a first toe control pivotally linked to the first foot brace; and a first foot brace adjusting means extending towards the aft end of the watercraft for permitting a user to slidingly modify the location of the first foot brace in the first track segment.
Parent Case Info

This application incorporates the disclosure of U.S. provisional patent application Nos. 60/147,961, filed Aug. 9, 1999 and 60/148,019, filed Aug. 10, 1999, herein by reference.

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Number Name Date Kind
2627833 Schroeder Feb 1953 A
3575124 Alter Apr 1971 A
4046093 Prindle et al. Sep 1977 A
4231309 Pelletier Nov 1980 A
4286536 Alter Sep 1981 A
4319538 Macfarlane Mar 1982 A
4711192 Kooy Dec 1987 A
4809408 Abrahamson Mar 1989 A
5447113 Chernin Sep 1995 A
6612252 King et al. Sep 2003 B2
Foreign Referenced Citations (2)
Number Date Country
33 16 636 Nov 1984 DE
2 613 318 Oct 1988 FR
Provisional Applications (2)
Number Date Country
60/148019 Aug 1999 US
60/147961 Aug 1999 US