Motorcycle foot peg

Information

  • Patent Grant
  • 6339972
  • Patent Number
    6,339,972
  • Date Filed
    Thursday, October 14, 1999
    25 years ago
  • Date Issued
    Tuesday, January 22, 2002
    22 years ago
Abstract
A foot pedal for a cycle has adjustable components on its surface to alter the engagement of the pedal with the boot of a rider of the cycle. Pegs are threadably installed in bores in the pedal and are adjustable upwardly and downwardly to provide a variance in the surface of the pedal. In one embodiment, the frame of the pedal has replaceable support blocks for receiving the adjustable pegs. Another variation has upstanding teeth in combination with the adjustable pegs.
Description




FIELD OF THE INVENTION




This invention relates to foot pedals typically mounted on motorcycles used for off road racing.




BACKGROUND OF THE INVENTION




Motorcycle racing involves riding a motorcycle over rough terrain and a major concern for the rider is maintaining balance. The distribution of the rider's weight is important for balance and a rider shifts his weight from side to side as he maneuvers through curves and over bumps. An important feature for accomplishing this weight shifting involves the motorcycle's foot pegs. The same concerns apply to normal or pleasure riding.




A foot peg is a type of pedal that is fixed to the motorcycle frame at each side and is positioned for engagement by the rider's feet. By pushing against one peg or the other, the rider effects a weight shift that helps maintain the desired balance.




Because off road racing also involves mud and dirt that is transferred from the rider's shoe or boot to the pedal and because a firm grip between the foot and pedal is all important, the foot peg is typically designed to have an open frame with cleats forming the engaged surface. The cleats penetrate through the mud and dirt and grip the boot bottom.




Also involved with this issue of balance is the rider's feel of the motorcycle. Location of the pedals or pegs is important but also important is the orientation of the pedal, i.e., the feel of the pedal under the rider's feet. Over time and due in part to wearing, the pedal angle will change and the cleats will wear down to change the feel as well as diminishing the gripping ability of the pedal cleats with he rider's feet.




BRIEF DESCRIPTION OF THE INVENTION




It is an objective of the present invention to improve on the existing foot peg primarily by providing adjustability but also cleat replacement and improved gripping.




The foot peg or pedal is cantilevered from a pivotal connection on the motorcycle frame. It can pivot upwardly and against the frame when out of service and downwardly to a position where the pedal face is laterally extended and engageable by the rider's feet. In the extended position, a protrusion of the pedal abuts the frame of the motorcycle to prevent further downward movement. In a preferred embodiment of the invention, an adjustable pin screwed into the protrusion of the pedal has a head portion that engages the motorcycle frame and dictates the stopped position. As wearing occurs and as the pedal angle starts to change, the pin can be adjusted to extend the head out from the pedal and correct the pedal position to the desired stopped position. Preferably spacers or shims are installed under the pin head to establish a set position.




The cleats are replaced totally or partially with threaded pins or screws. The pins are adjustable to accommodate wearing and also to enable the rider to adjust the camber of the engagement surface, i.e., by raising the outer pins and lowering the inner pins or vice versa. The structure of the pedal can vary to accommodate the adjustable pins and several of such structures are described and illustrated in the following detailed description.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a view of a motorcycle;





FIG. 2

is a view of a foot pedal mounted to the motorcycle of

FIG. 1

;





FIGS. 3 and 4

are views of one embodiment of the foot pedal of

FIG. 2

;





FIGS. 5 and 6

are views of another embodiment of the foot pedal of

FIG. 2

; and,





FIGS. 7 and 8

are views of another embodiment of the foot pedal of FIG.


2


.











DESCRIPTION OF THE PREFERRED EMBODIMENT





FIG. 1

illustrates a motorcycle


10


that is suited for off road and competitive racing. An important feature of the motorcycle


10


are the foot pedals


12


that are mounted on each side of the frame


14


. The pedals


12


are provided to support the feet of the rider. The rider utilizes the pedals for balance as well as an aid in controlling the motorcycle


10


. The present invention is an improved foot pedal for attachment to the motorcycle


10


. The foot pedal


12


is pivotally mounted to the frame


14


of the motorcycle


10


and is positioned at a strategic location for use by the rider.





FIG. 2

illustrates the foot pedal


12


pivotally mounted to a bracket


16


. The bracket


16


is attached to the frame


14


of the cycle


10


in a conventional manner. The bracket


16


has a boss


18


that has a bore


20


that receives a shaft


22


of the foot pedal


12


. The foot pedal


12


is pivotable upwardly and downwardly on the bracket


16


. The foot pedal is limited in its upward pivotal movement by a projecting stop


24


that engages the bracket


16


. The downward pivotal movement is limited by a stop screw


26


threadably installed in a threaded bore


28


in a lobe


30


of the pedal


12


. The stop screw


26


will engage the bracket


16


to limit the downward pivotal movement of the pedal


12


. The stop screw


26


is adjustable inwardly and outwardly to vary the downward pivotal movement of the pedal


12


. When it is desired to reduce the downward pivotal movement of the pedal


12


, spacers


32


are mounted on the screw


26


. One or more spacers are used, depending on the degree of pivot that is desired for the pedal


12


.





FIG. 2

shows in dashed line the position of the pedal


12


with the screw


26


without spacers against the bracket


16


. The pedal is shown in solid line with the screw


26


having multiple spacers


32


. The angle of tilt of the foot pedal


12


may thus be controlled by using the screw


26


without spacers


32


or utilizing a spacer (or multiple spacers)


32


on the stop screw


26


.




A further feature of the foot pedal


12


is the improved tread of the pedal, that is the surface of the pedal that will be engaged by the boot (shoe) of a rider. It is considered important to have a tread that will provide adequate grip for the boot so that the boot will not slip off of the pedal


12


. The pedal of the present invention has an improved tread that will better grip the boot of a rider and further, the tread of the pedal


12


is adjustable.





FIGS. 3 and 4

illustrate one embodiment of a foot pedal


12


. The pedal


12


has an extending support frame


40


. Mounted to the frame


40


are support blocks


42


. The blocks


42


are secured to the frame


40


by conventional fasteners


44


such as screws. Each support block


42


has threaded multiple bores


48


that receive threaded pegs


50


. The pegs


50


are installed in the bores


48


in a desired pattern, that is the pegs are threadably installed in the bores


48


to a desired depth. Preferably the pegs


50


have a thread form that is of a known self locking type so that the peg


50


will remain at the set depth in the bores


48


. The pegs


50


are adjusted to the desired depth according to the needs of the driver based on the conditions of the course he/she will encounter. For example the pegs


50


may be adjusted to be installed to extend a greater distance from the surface of the support block


42


at the end


52


than at the end


54


. This in effect adjusts the camber, i.e. tilt of the tread surface defined by the pegs


50


on the pedal


12


. It will be appreciated that each of the pegs


50


are adjustable independently of the others and so the tread surface defined by the pegs


50


may be adjusted to suit the operator of the cycle


10


.





FIGS. 5 and 6

illustrate another embodiment of the foot pedal


12


. In this embodiment the frame


40


′ is formed integral with the pedal


12


. The frame


40


′ is provided with bores


58


to receive the pegs


50


. The pegs


50


are adjustably mounted in the bores


58


in the same manner as installed in the bores


48


of the support blocks


42


. The pegs


50


are adjusted to a depth in the same manner to suit the conditions and the needs of the operator of the cycle


10


.





FIGS. 7 and 8

illustrate another embodiment of the foot pedal


12


. In this embodiment the frame


60


of the pedal


12


has upstanding teeth


62


(formations) extending along each of the sides of the frame


60


. Bores


64


are provided in the frame


60


to receive pegs


50


. The pegs


50


are adjustable in the same manner as previously described. The teeth


62


in combination with the pegs


50


provide a tread surface on the pedal


12


that will grip the boot of the operator of the cycle


10


.




Those skilled in the art will recognize that modifications and variations may be made without departing from the true spirit and scope of the invention. The invention is therefore not to be limited to the embodiments described and illustrated but is to be determined from the appended claims.



Claims
  • 1. A foot peg mounted to a frame of a motorcycle, comprising:a pedal member connected at one end to the motorcycle frame and cantilevered laterally from the frame and in the cantilevered position defining an upper foot engageable surface; said upper foot engageable surface having threaded openings, and threaded pins threadably inserted into the openings, with a portion thereof exposed upwardly from said surface for engagement by a rider's foot, each of said pins adjustable into and out of the respective threaded openings for altering the portion exposed for individual gripping and for collectively defining the camber of the foot support.
  • 2. A foot peg as defined in claim 1 wherein the pedal member comprises a pedal frame and a pedal block removably attached to the frame, multiple of said pins insertable into the block whereby replacement of the block achieves replacement of the multiple pins in the block.
  • 3. A foot peg as defined in claim 2 wherein the frame has a front side and a back side, each of the front and back sides configured to receive the pedal block.
  • 4. A foot pedal as defined in claim 1 wherein the pedal member comprises a frame configuration having front and back blocks in spaced part relation defining a cavity therebetween, said pins insertable into a defined pattern of threaded openings in the front and back blocks.
  • 5. A foot pedal as defined in claim 4 wherein the pattern provides certain of said pins in spaced apart relation and interspersed with fixed cleats.
  • 6. A foot pedal as defined in claim 1 wherein the pedal member is pivotally connected to the frame of the motorcycle for pivoting the pedal member between a raised out of service position and a lower foot supporting position, a lobe provided on the pedal member under the pivotal connection, a head member adjustably projected from said lobe and in engagement with the motorcycle frame with the pedal member in the lower foot supporting position, said adjustment of said head member providing adjustment of the pedal member position at said foot supporting position.
  • 7. A foot peg mounted to a frame of a motorcycle comprising:a pedal member, a pivotal connection connecting the pedal member to the motorcycle frame for pivoting the pedal member between a raised out of service position and a lower foot supporting position, a lobe provided on the pedal member under the pivotal connection, a head member adjustably projected from said lobe and into abutting engagement with the motorcycle frame to define the lower foot supporting position of the pedal member, said adjustment of said head member providing pivotal adjustment of the pedal member at said lower foot supporting position.
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Number Name Date Kind
270920 Woodward et al. Jan 1883 A
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D282652 Nista Feb 1986 S
4591179 Nakamura May 1986 A
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4771651 Haro Sep 1988 A
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5638723 Lin Jun 1997 A
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Foreign Referenced Citations (1)
Number Date Country
2064732 Jun 1981 GB