Hands free bicycle maintenance pedaler

One embodiment of a hands free bicycle maintenance pedaler provides means to the operator to have both hands free for adjusting, cleaning, lubricating, inspecting or locking the drive train components of a supported bicycle. One embodiment has a motor (1600) communicating with a power enclosure (1210) and a speed pedal (1205) to variably power said motor. Said motor frictionally engages with a motor plate (1500) through which an output shaft (1620) passes and frictionally engages with a crank interface arm (1700). Said crank interface arm contains a temporary connection means to a crank arm (190) using pair of connector rods (1745) along said crank arm. Said motor plate is pivotable and slidable along a carriage (1400). Said carriage is slidable along a tube (1300) or work stand (110) to achieve acceptable orientation between the device and an imaginary line through the center line of a bottom bracket of a bicycle.

BACKGROUND

Previously the common methods available to clean, inspect, lubricate, adjust or simply observe a bicycle drive train consists of three main options; 1) install the bicycle into one of the many bicycle stands currently available or alternate stable setup, 2) turn the bike upside down on its saddle and handlebars, or 3) Lean the bicycle against something or have someone hold the bike quasi upright in the “riding position” while occasionally lifting the bike off the ground to allow the rear wheel to turn; enabling forward motion of the drive train. All 3 methods share similar drawbacks. Option1—typically a bike stand; is the preferred and least hindered of the 3. All known bike stands provide a range of different specifications, improvements, designs, primarily developed and enhanced to support the bicycle and or to improve “portability” of the stand system itself. U.S. Pat. No. 5,996,814 to Workman and House (1999) for instance, improves stability and portability of previous designs. Regardless of stand specifics, they all share a common requirement that the user relies on a hand; either one of their own or that of a helper to turn the crank to advance or “back pedal” the crank as needed. This method is most commonly performed by grabbing the drive side pedal itself (if installed) using a hand and rotating the associated crank arm thus simulating the pedaling effect. This has several serious drawbacks. Firstly, shifter adjustments are difficult to make due to having one hand constantly required to turn the crank while the other hand usually “takes turns” between turning adjustment screws, barrels while also having to activate the appropriate shifter. Secondly, searching for sources of rattles, noises or other general issues is difficult due to a requirement to physically stay in close proximity to the crank—to keep the drive train operating. This is nearly impossible to perform successfully if a perceived noise only presents itself during high speed rotation of either the drive train itself or a rear free hub body. If for instance a noise appears in the free hub only while free turning at roughly 25 miles per hour or higher, it is not practical to attempt this speed of rotation while using a hand to turn the drive side crank. Nor is this instantly solvable by riding the bicycle if conditions do not allow. Thirdly, cleaning and lubricating the drive train—such as the chain, chain rings and cassette is a labor intensive task made very difficult due to a shortage of free hands.

One common method for maintaining a chain for instance has the user holding a rag around some portion of the chain while the other hand pedals the drive train such that the chain runs “through” the rag. Once finished, the user may apply lubricant quickly in much the same way—by holding a bottle of lube near the chain, allowing drops to fall while pausing occasionally to advance the chain manually. Per manufacturing guidelines—the user typically is instructed to wipe off excess lube to reduce the issues known to too much lubrication (accelerated wear, gumming etc. . . . ). Unfortunately due to the chain lube already being applied directly, excess lube is easily slung or dripped onto the frame and nearby components.

Fourthly and lastly, the current solution of using a dedicated hand to turn the pedals while using the second “free hand” to perform all other tasks is often filthy work. The user must be diligent (either by washing or swapping/replacing of gloves) to ensure that grease, grime, lubricant or other contaminants do not find their way onto the shifter hoods and or bar tape. Popular use of white shifter hoods and or bar tape only exacerbates the appearance issue. Not just unsightly; the lubricant and or grime can easily find its way into the riders' eyes at a later time due to frequent use of the hand or glove as a method to wipe away excess sweat. All efforts to minimize this contamination should be considered good practice. The upside down method of option2again relies on the mechanic to turn the pedal as needed as in option1—thus has the same exact drawbacks as option1, but with an additional drawback of not allowing shift adjustments to effectively be made. In this mode, the shifter hoods are upside down, operate directionally backward, and may interfere with the ground if there is inadequate clearance. The derailleur hangers are also upside down and may not function with typical tension—making any adjustments moot since the geometry is not the same as what is encountered in the riding position.

The leaning or holding of the bike method while occasionally lifting the back wheel of option3has the same drawbacks as option1however it has the added drawback of trying to keep the bike supported against the often very strong “spring force” required to physically move either the front or rear derailleur's via the shifter(s). Lifting the bike while also having to use a hand to simulate the pedaling motion does not even enable a single hand to activate shifters or make adjustments for a single person. Given the drawbacks discussed of all three methods currently available regarding bicycle drive train lubrication, adjustments or observation; the best case scenario typically provides either just one “free hand” to perform tasks—or requires a second person and is still overly challenging.

SUMMARY

In accordance with one embodiment; a motor assembly having a connection means to a bicycle pedal or crank arm is used to perform the task of turning the crank and related drive train on a bicycle while the bicycle is firmly held stationary by other means, most typically a bicycle repair stand.

DETAILED DESCRIPTION

A First Embodiment Pedaler Device

FIG. 1illustrates an embodiment of the pedaler device10. Generally, the device comprises (i) a motor assembly12including a motor1600and a crank interface arm1700and an associated connector mechanism36configured for removable attachment to a crank arm190of a bicycle drive train24, (ii) a stand14for elevating and supporting the motor assembly, and (iii) a motor controller16for controlling the speed and rotational direction of the motor. The motor assembly further includes structure to permit the vertical position and angle of the assembly on the stand to be adjusted as is described in detail below.

FIG. 1ais an illustration of the pedaler device in combination with a bicycle18supported on a bicycle repair stand110in a typical operative configuration. The bicycle typically includes a frame212and a fork206, front and rear wheels20&22, a saddle200, handlebars204and drive train24. A typical drive train is chain driven and includes a crankset assembly26, which comprises left and right crank arms190, chainring(s)202, a bottom bracket assembly (not shown), and pedals194. The typical drive train further includes a cassette28, one or more derailleurs32&34and chain30that extends around or through each of the chainrings, cassette and derailleurs. The cassette is operatively coupled to the rear wheel22to transfer propulsive force thereto.

FIG. 2throughFIG. 4show in detail the parts required, assembly order and key characteristics in sufficient detail to describe one fully assembled pedaler embodiment10as shown inFIG. 1.

FIG. 2shows an exploded view of the motor assembly12except for the crank interface arm, which is separately illustrated inFIG. 4. A motor front plate or plate1500frictionally connects a motor1600by passing a collection of bolts1520through corresponding through holes1505belonging to the aforementioned motor plate1500and into a series of threads1605contained within motor attachment points1610; such that a motor output shaft1620passes fully through a motor shaft through hole or through hole1515bored through the aforementioned motor plate1500. The orientation of said motor1600and pattern of said bolt holes1505and said bolts1520and said through hole1515depend upon the specific motor selected for the embodiment. According to one embodiment, said motor having demonstrated adequate torque and speed characteristics for the application is a Trico Part Number 23000387 or equivalent. Using this specific motor or equivalent, said motor plate1500is of roughly 3 inches in width, 3.5 inches in height and 1 inch in thickness and is made of plastic. Continuing to describe plate1500, the back surface (surface that physically mates with the motor1600) has countersinks (not shown) on said bolt holes1505and said through hole1515of roughly the same diameter of the motor attachment points1610and a motor output shoulder1615respectively to a depth such that when said motor1600is fully seated within said motor plate1500, the aforementioned motor output shaft or shaft1620clears the front face of said plate1500with roughly 0.5 inches of threads available on the front side of the plate1500. According to one embodiment, the depths of these countersinks are 0.25 of an inch. The aforementioned bolt holes1505are of roughly the same diameter of said bolts1520and also have countersinks (not shown) of minimum depth required to provide bolt heads of bolts1520to be nearly flush with front face of said plate1500. According to one embodiment, the depths of said front face countersinks are 0.25 of an inch. Continuing to describe the orientation of said bolt holes1505and through hole1515within the front face of said plate1500; all holes and corresponding countersinks are drilled into the face such that the aforementioned motor shaft1320is horizontally centered within the face of plate1500while on the vertical face the said motor shaft1620is 0.75 inches below the vertical center line. Plate1500also contains a through hole or hole1510of roughly 0.375″ diameter on center of thickness of plate1500such that roughly 0.375 material remains above the through hole.

Continuing to refer toFIG. 2, a motor assembly carriage or carriage1400typically comprised of plastic has of initial dimensions of approximately 1.5 inches in height, 4 inches in both remaining dimensions. What could be considered a 1.5 inch high by 1.5 inch deep by 3 inch wide cube is removed or not casted from one centered end of said carriage1400. A channel1415results in which aforementioned plate1500can fit. A pair of through holes1405of approximately 0.375″ diameter vertically on center is drilled through both remaining edges of said channel1415such that approximately 0.375″ of material remain on the outboard edges of said channel.

Carriage1400on the end opposite of aforementioned channel1415includes a large rounded slot1420of roughly 1.625″ diameter on center in the vertical plane from the back edge of the carriage1400concluding at a point when roughly 0.5″ of material remains at the narrowest point between the said slot1420and the back edge of aforementioned channel1415. A pair of through holes1410of approximately 0.375″ diameter vertically on center is drilled such that approximately 0.375″ of material remains on the back edges of said holes and said carriage1400.

Referring toFIG. 3the stand14is illustrated. At a base end, it comprises a base plate or plate1000having dimensions of 18″×18″×1.5″ that is made, according to one embodiment, of heavy plate steel. Centered within plate1000is a section of male threads1015, which can be welded to plate1000or attached using another means, known to the art. The stand also comprises a tube1300having corresponding female threads1305mating with threads1015to attach to the base. Tube1300is made, according to one embodiment, of durable plastic having approximate dimensions of 1.625″ diameter and roughly 40″ in length. Referring toFIG. 4, a crank interface arm or arm1700is made, according to one embodiment, of plastic. The crank interface arm1700has dimensions of roughly 4″ in length and 1″ in both remaining dimensions followed by an approximate 1″ length that is reduced to roughly 0.25″ thickness. This reduction in thickness area, or shoulder; includes a through hole1705of roughly the same diameter as the aforementioned output shaft1620fromFIG. 2. According to one embodiment, this hole is 0.25″ in diameter and is centered within the shoulder. Arm1700also includes connector mechanism36for removably coupling the crank interface arm to a crank arm190of the crankset assembly26. The connector mechanism comprises a through hole or hole1715in the crank interface arm of approximately 0.25″ diameter bored in the plane perpendicular to hole1705. Center of Hole1715is bored approximately 0.5″ from all edges near a distal end of the crank interface arm such that the distance from hole1705and hole1715are all maximized. On center of hole1715and on both parallel and perpendicular axis to the long length of arm1700is bored an approximately 0.5″ long×0.125″ deep square trough1720such that a cross shape results. A connector shaft1725of roughly 0.25″ diameter and 2.5″ length made according to one embodiment plastic; passes through bore1715. Connector shaft1725includes a pair of female threads1735centered within the same face of the connector shaft such that both centers of threads1735are approximately 0.375″ from their respective ends of connector shaft1725. Connector shaft1725also includes according to one embodiment a square through channel or hole1730of approximately 0.125″ centered 0.75″ below the top of connector shaft1725but perpendicular to holes1735. A small square rod or retaining rod1740of metal having dimensions of 0.5″ in length and 0.125″ square is pressed into hole1730until centered. Onto the top of connector shaft1725is pressed one of two connector rods1745of approximately 0.5″ diameter and 1.75″ length by passing the top of connector shaft1725through a hole1755of approximately the same diameter of the connector shaft1725. According to one embodiment, hole1755is 0.25″ and connector rods1745are made of a hard rubber or semi-rigid elastomeric material. In other variations the rods can be made of plastic or metal and are often covered with a rubber or elastomeric sleeve. Hole1755is centered 0.5″ from one end of each connector rod1745. Connector rods1745also include a hole1760bored into the center of each rod of approximately the same diameters as aforementioned female threads1735. According to one embodiment, holes1760are of 0.1875″ diameter and are bored to a depth of approximately 0.75″. The top connector rod1745is secured onto connector shaft1725by threading a retaining hardware or screw1765. Connector shaft1725is then passed through aforementioned hole1715such that retaining rod1740is pressed into one of the two possible orientations provided by aforementioned trough1720. On the remaining portion of connector shaft1725protruding from the underside of arm1700a spring1750is slid over connector shaft1725and compressed while the lower connector rod1745is installed following the same process as the top rod using a second screw1765. According to one embodiment, spring1750is approximately 0.26″ inside diameter, 0.75″ in length and has a moderate K factor known in the art. The square trough1720in combination with the retaining rod1740as biased by spring1750acting through the connector shaft1725comprise a detent mechanism38. Accordingly in operation, the top and bottom connector rods1745are able to rotate as a pair and be locked both parallel and perpendicular to the long axis of crank interface arm1700by the detent mechanism38.

Referring toFIG. 1andFIG. 4, the assembled crank interface arm1700is frictionally connected to the aforementioned motor output shaft1620by a nut1710. The motor carriage1400and all installed parts are then frictionally engaged onto tube1300by pressing slot1420around tube1300followed by passing quick release1425through both through holes1410and securing with nut1430. The motor1600is electrically connected to a motor controller16comprising power enclosure1200and a foot pedal1205by a communications cable1225. The power enclosure contains electronics known to the art, which are therefore not required to fully described within this invention; however according to one embodiment based upon the aforementioned selection of a Trico Part Number 23000387 motor1600it is important to know that the enclosure1200according to one embodiment includes a varying voltage transformer from AC to DC voltage (not shown) with adequate wattage, being roughly 6 watts to power said motor1600from near zero voltage to maximum rated voltage of said motor based upon a varying supplied input AC voltage provided by a foot pedal1205by means of full wave rectification known in the art. Based upon one embodiment, pedal1205may be a “Moto-Tools Foot Pedal” or equivalent. The DC output of aforementioned transformer fully rectified then electronically connects to a directional control device or direction switch1220before connecting to aforementioned communications cable1225.

Referring back toFIG. 1a, a typical bicycle repair stand110is shown having a mostly vertical tubular rod or tube40which is connected to the remaining components known in the art, such as a clamp or stand clamp111. Also known in the art—a bicycle has a seat or saddle200installed onto a seat post or post198. Said post198installs into a frame212connecting in several points to a bottom bracket (not shown). Within the art related to work stands, varying designs support the bike by typically a stand clamp111which may attach to post198or frame212. My invention is not specifically based upon any single existing art designs as they relate to bicycles or bicycle repair stands themselves.

Referring toFIG. 1a&FIG. 5, the crank arms190rotate around an imaginary centerline of the bike crankset assembly26. Front chain ring202is connected using a chain30to a rear wheel22, which is connected to aforementioned frame212through a part of the frame known in the art as a rear triangle. Known to the art of bicycles, the drive side is considered the side of the bicycle that includes the chain, chain ring and other related components. Additionally, said frame212is connected to a front wheel fork206which mounts a front wheel20. Said fork206steers the bike by turning a handlebar204. For the Currently described embodiment and to discuss operations of this primary embodiment, the bicycle should be installed into the stand clamp111in a way commonly known in that art, such that the non drive side crank arm190and said crank arm's pedal194(if installed on the bike) orient to the aforementioned crank interface arm1700, and the pair of connector rods1745as shown inFIG. 5. The orientation is such that the centerline of the aforementioned output shaft1620closely approximates a continuation of the aforementioned centerline of the bike crank. By operating quick releases1425and1525reasonable efforts can be made to both the height and angle of the output shaft1620to approximately match this aforementioned centerline of the crank. Moving entire base1000adjusts horizontal positioning.FIG. 5shows an exploded partial view of just one such possible positioning. Before covering operation of the invention, absolute perfect alignment between the centerline of the output shaft1620and the imaginary centerline of the bike crank is not required. To summarize one example of static orientation of the currently described embodiment as it relates to the bike; the overall circular path of the pair of connector rods1745is such that they combine to engage both related edges of the crank arm190without interfering with the bike frame212and any other installed equipment.

Operation of the First Embodiment Pedaler Device According to an Embodiment

The preceding description of the currently described embodiment results in a ready to operate invention. During operation, the pedaler10is supplied an AC voltage in increasing value as the speed pedal1205is depressed in an increasing amount. This increased voltage AC results in a proportional increased output DC voltage from the variable voltage transformer combined with full wave rectification (not shown). Said DC voltage is supplied to the motor1600with a polarity selected by direction switch1220over communications cable1225. The DC voltage and the specific characteristics of Motor1600determine at what RPM—or cadence the output shaft1620will turn. As the output shaft1620rotates at a speed proportional to the depression of the speed pedal1205, the crank interface arm1700and ultimately the pair of connector rods1745turn at the exact same speed. Due to the temporary connection established between the insides of each connector rods1745and each outside edge of aforementioned crank arm190, regardless of the direction of motor rotation selected via direction switch1220the non drive side crank arm190all related components to the drive train (chain rings, chains, rear cassettes, rear hub idler pulleys, derailleurs, etc. . . . ) will also operate as established within the art. If the direction switch1220is selected for reverse operation, the connector rod1745drawn on top based onFIG. 5is the primary connection point to the bicycle crank arm190. If the direction is forward, the bottom connector rod1745inFIG. 5is the primary connection point. The force provided by the motor1600is transferred to the crank arm190through the primary single connector rod1745while the other provides support to the other edge of the crank arm190to minimize chatter, to stop the crank arm from over rotating after power to the motor is removed and to quickly allow the direction switch1220to be changed without requiring the crank interface arm1700to move around to the other side of the rotation to engage the crank arm190. If the direction control is set for reverse, the bicycle rear wheel22may rotate a small amount caused by simple friction; however all other components operate based upon their respective ratios as they relate to the motor speed.

A low motor speed pedal setting combined with a low bicycle gearing selection known to the art, such as a 34/25 ratio would result in the chain and other drive train components to turn at a slow but approximately steady pace. This typical combination may be suited for inspection of drive train parts, observation, cleaning of components or application of lubrication. For instance, with two hands free with the chain (not shown) rotating at a slow pace, an operator of the invention can use one hand to hold a rag around the chain while the other hand of the operator allows specific desired quantities of agents to be applied judiciously. Front chain ring202, the rear cassette (not shown) and idler pulleys (not shown) can also be cleaned much more effectively then currently known in the art in this manor. Letting off the speed pedal116while the direction switch1220is set for reverse will result in near immediate cessation of rotation of all parts. Changing direction switch1220will result in the motor rotation changing to the alternate mode. It is important to note that the direction switch1220and thus bicycle drive train direction affects the forces the motor1600will overcome during operation. In reverse, the motor overcomes just the built in friction of the overall system. In forward operation, in addition to built in friction, the motor also provides the force to rotate the mass of the rear wheel (not shown) at a speed based upon the gear ratio of the bicycle currently selected via the shifters (not shown) and the amount the speed pedal1205is depressed.

Within the currently described embodiment, a motor equivalent to a Trico Part Number 23000387 in use with a 6 watt variable AC to DC transformer and a Moto-Tools foot pedal the maximum RPM of the motor closely resembles the human range of pedaling cadences—from 0 to approximately 110 rotations per minute with realistic torque capabilities to operate a gearing ratio of 53/11—a relatively high ratio known to the art of a bicycle

The invention in this currently described embodiment may spin a 700/23c rear wheel with a 53/11 gear ratio at speeds known in the art of bicycling to be high, possibly surpassing 35 miles per hour. At an operating speed near maximum followed by removing forward power from the motor, the crank arm190and connected drive train components stop, however the cassette28and rear wheel22continues to rotate as well known in the art until friction forces stop the operation. The scenario described above alleviates the existing art issue of not easily being able to diagnose or test resultant repairs of high speed wobbles within the rear wheel—or issues or sounds emanating from high speed rotation of the free hub.

Using a hand on a crank arm190or pedal194to try to obtain let alone sustain the types of speeds aforementioned is simply impractical. Additionally, if there are drive train rotation specific issues only presenting themselves at a very high cadence such as squeaks, rattles or other common problems, these are challenging to distinguish or isolate when using a hand to rotate the crank arm190or pedal194due to the challenge of smoothly rotating the drive train by hand. Depressing the speed pedal until a desired speed is achieved alleviates this and creates a smoother and lower noise power distribution to the drive train. Lastly, while operating with a forward direction, adjusting actual shift indexes known to the art is not as difficult or dirty or as dangerous as currently known to the art.

Discussing first the safety improvements of my invention over known art relates to vision and focus. Using a hand to turn the crank arm190or pedal194or relaying commands to a helper requires its own focus. Trying to turn derailleur limit stops known to the art (not shown) using a screw driver or similar tool in close proximity to rotating parts is potentially dangerous. Occasionally it is unavoidable in this mode to not shift the eyes to ensure that the hand or helper is effectively turning the drive train. It is simple to accidently lose focus for a split second due to a change in speed or a slip of a hand and get a tool shaft or worse yet a finger into the path of a moving object. Additionally a repetitive motion injury can occur after manually turning a drive train with a muscle group that isn't used to this type of motion. Operation of my invention improves these safety concerns due to use of the foot based speed pedal1205and related parts to perform the drive train motion related tasks at a relatively constant and on an easier to maintain basis. This leaves the eyes and mind to better focus on the task at hand. Limit stops can be adjusted in smaller amounts due to having two hands free to turn the stop at a finer amount. This also reduces the likelihood of throwing the chain during the adjustments which can cause serious damage to bike finishes or equipment. In addition to making safety improvements over known art, operation of my invention also makes shift index adjustments easier to perform. At best—the drive train can be turned by known art while adjusting the appropriate barrel to minimize drive train noise to estimate the appropriate value. Regardless, the new value needs to be tested by activating the appropriate shifter (not shown). As discussed in the prior art section, this involves usually switching hands—from pedal194to the appropriate shifter (not shown). This is time consuming and frustrating due to the ease of which it is forgotten how much a barrel has been turned already and in what direction between these switches. Plus grease, dirt and grime from the pedal are easily transferred onto the handlebar204which can ruin bar tape (not shown) or can place lubricants which can find their way later into the eyes of the rider. Since my invention results in both hands being free, typically the left hand can be dedicated and used to turn the appropriate barrel bolt while the right activates the correct shifter. The invention can operate at the nearly same cadence through out the shift process just as a rider typically does during riding. Since the adjusting hand is still on the barrel being adjusted, muscle memory and reduced time lapse makes more refined changes in the appropriate direction faster. The smoother and more consistent power delivered by the invention to the drive train reduces the lag observed when trying to shift with one hand while trying to continue turning the crank arm190or pedal194further reducing time and frustration levels associated with the task of shift index adjustments using known art.

Lastly in operation of my invention the device can effectively be used as a brake against rotation of the drive train during static cleaning or static work. If there is a single problematic chain link for instance or a single spot on a chain ring that requires investigation using known art it is tough to keep the drive train from moving if the bicycle is simply held in a repair stand. If no power is provided to motor1600while the pair of connector rods1745are both engaged with the crank arm190; then it is next to impossible to actually turn the motor identified in the currently described embodiment. The gearing is such that motor1600for all practical environments will keep crank arm190and thus drive train parts from moving aside from any minor play in the overall system.

On occasion it may still be desirable to manually turn the crank arm190or pedal194using a hand or other prior art method in order to check for issues involving stiffness or looseness in the crank itself. In these situations, the pair of connector rods1745can be rotated 90 degrees such that they are parallel to crank arm190which allows crank arm190to pass by the invention entirely—or the entire base1000can be moved such that the invention no longer temporarily connects to the crank arm190.

A Second Embodiment Pedaler Device

Referring toFIG. 2aand comparing withFIG. 2, the motor plate fromFIG. 2has been modified to include a removed channel1502ahaving a depth of material removed to roughly 1 inch (leaving roughly 0.5 inch material remaining between the top bolt hole1505and the bottom of said removed channel1502a) and on center of plate1500to an overall width of roughly 2.5 inches, leaving two 0.25 inch “ears” containing the now two through holes1510. Within the aforementioned removed channel1502adrops an optional extension2500ahaving the same original dimensions of the aforementioned motor plate1500with a through hole2502asimilarly placed and dimensioned to the through hole1510and a through hole2505aof same dimensions (size and spacing from end) as hole2502a. The end of the optional extension2500aincludes a reduction in width of 0.25″ on each edge to result in a shoulder area2507asuch that the resultant nose of2500adrops into removed channel1502a. All other components can be considered to be the same as the main embodiment with the following exception, rather then quick release1525passing through hole1510fromFIG. 2, it instead passes through hole2502a

Operation of the Second Embodiment Pedaler Device

The proceeding section as it relates toFIG. 2adescribes the addition of an optional extension into the main embodiment for additional adjustability. During operation, this adjustability comes into play to provide more angular (pitch) and height control of the system. Rather then describing the operation from start to finish in much overlap from the first embodiment, just the additional features or operations are described.

The quick releases1525and new quick release2510acan be used in combination to tilt and effectively raise, lower and move outward and inward the motor plate and effectively the relationship between the connector rods1745and the crank arm190. This can be used to reduce frequency of moving the entire system.

A Third Embodiment Pedaler Device

Referring toFIG. 2band comparing withFIG. 2, the motor carriage1400first described in the main embodiment has several modifications. Channel1415is not removed. Through hole1405is not drilled and lastly a 1.5″×1.5″×7″ long plastic or alternate material piece is added to one side of the outside edge in the same plane as through holes1410following the original inside extruded line of what would have been channel1415. Vertically centered and 1.5″ horizontally inboard of the outside edge of newly formed L shape within carriage1400is bored a through channel1404bof rectangular shape having the vertical dimension 0.5″ wide and the horizontal dimension being 1″ wide. On the top service of carriage1400and on center of through channel1404bis a threaded hole1402bto a depth piercing into the top of slot1404b. Through said through1404bpasses a rectangular 0.5″ high by 1″ wide section of a generally L shaped shaft or L Shaft2600band is frictionally locked by locking lever1406b. On one end of the male rectangular rod portion of L Shaft2600bis a round shaft portion of 0.375 inch diameter and 7″ in length added on center 0.375″ from the outside edge of the rectangular portion. A motor plate1500is the same from the first embodiment except for the addition of a threaded hole1502bon center of the top of the plate piercing through the top of through hole1510. The round shaft portion of2600bpasses through hole1510and is frictionally locked into position by a locking lever1504b. Referring toFIG. 1andFIG. 2b; Carriage1400is frictionally locked to the support tube40by pressing tube40into tube slot1420and frictionally securing with quick release1425and nut1430. All remaining portions of the embodiment of the invention not specifically covered within this alternate embodiment follow the main embodiment.

Operation of the Third Embodiment Pedaler Device

The preceding describes in detail the modifications to the first embodiment as shown inFIG. 2bto connect the system directly to a bicycle repair stand110rather then a support tube1300. This removes need for base plate1000and tube1300entirely and thus requires modified operation from the main embodiment; but with only the following modifications (all others are retained).

Operating quick release1425allows carriage1400and thus device to adjust height relative to the bicycle crank centerline described in operation of the main embodiment by moving up and down the work stand110itself rather then a support tube1300. Operating locking lever1406ballows the motor plate and thus crank interface arm1700and related parts to move horizontally inward and outward as needed in relation to the bicycle crank arm190to achieve orientation as shown inFIG. 5Operating Locking lever1504ballows motor plate1500and thus all other parts to slide along the round shaft portion of L shaft2600bwhile also allowing motor plate1500to rotate along said L shaft2600bto approximately match both angle and positioning as shown inFIG. 5. All other operations continue from the main embodiment.

Fourth and Fifth Embodiment Pedaler Devices

Referring toFIG. 3aand comparing toFIG. 3, Base Plate1000has been reduced in thickness to 0.75″ and includes 4.5″ diameter holes1005aroughly 1″ on centers of all 4 corners.1000also includes two male ribs1010ahaving roughly a half cylinder shape of 0.5″ width, 0.375″ height, 10″ long centered 1″ from two parallel edges. A weight plate1100ahaving identical basic dimensions to plate1000and ribs1110amatching dimensions and placement of ribs1010a. Weight plate1100aalso includes a large slot1105aof same diameter and to the back side of threads1015on center, and parallel to male ribs1110a. Weight Plate1100alastly includes female slots (not shown) on the underside of the plate such that when weight plate1100arests on top of plate1000, the male ribs1010afrom plate1000slip into the aforementioned female slots of weight plate1100a.

Referring toFIG. 3b, base plate1000may be semi permanently secured to a wall, floor, ceiling or other adequately supported location by use of hardware1010b. In semi permanent mode, tube1300may be cut to an appropriate length. Ribs1010aare not required. All remaining portions of the embodiment of the invention not specifically covered within this alternate embodiment follow the main embodiment.

Operation of the Fourth and Fifth Embodiment Pedaler Device

The preceding describes two embodiment modifications where base plate1000can be split into multiple smaller plates for ease of carrying as well as situations where a thinner plate1000can be affixed directly to a sound material such as a wall, ceiling or floor. In both cases the operation of the invention is the same as the main embodiment with the exception of horizontal attachment of the base plate1000to a vertical service such as a wall. In this case, the primary operational difference involves how quick releases1425and1525affect orientation of crank interface arm1700in relation to the invisible centerline of crank arm190. Quick release1425provides inward adjustability (instead of vertical) while1525adjustment continues to provide angular control. The centerline of motor shaft1620shall still approximately match the invisible centerline of crank arm190, after which all operation follows the operation of the main embodiment.

Sixth Embodiment Pedaler Device

Referring toFIG. 4aand comparing toFIG. 4, from crank interface arm1700fromFIG. 4, channel1720is excluded. Connector shaft1725excludes through channel1730and adds two intersecting through holes on center of roughly 0.125″ diameter such that one is parallel to female threads1735and the other perpendicular. (holes not shown). Spring1750is removed. Retaining rod1740is removed. Crank interface arm1700adds a Recessed Holes and Threads area1740aexisting On vertical center and horizontal plane of through hole1715.1740aconsists of an on center 0.125″ diameter hole drilled to penetrate into through hole1715and a larger concentric female threaded area to a depth of roughly half the depth of the aforementioned 0.125″ diameter hole. Into the female threads screws a pinball style plunger combination of a barrel1742a, a plunger1744a, a spring1746a, a cap1748aand a Tee handle1750aknown to the art. The tip of plunger1746africtionally engages into either intersecting through holes added to connector shaft1725to secure in 90 degree increments. All remaining portions of the embodiment of the invention not specifically covered within this alternate embodiment follow the main embodiment.

Operation of the Sixth Embodiment Pedaler Device

The preceding describes use of a locking crank interface arm plunger as shown inFIG. 4ato control orientation of both connector rods1745in relation to crank interface arm1700. In operation, this alternate embodiment follows the operation of the main embodiment with the following exception. Rather then compressing spring1750while turning connector rods1745either perpendicular or parallel with the crank interface arm1700to engage/disengage the invention, the tee handle1750ais pulled outward, compressing spring1746aand plunger1744ais pulled out of connector shaft1725allowing the shaft1725and thus connector rods1745to rotate in relation to crank interface arm1700.

Seventh Embodiment Pedaler Device

Referring toFIG. 4band comparing toFIG. 4, connector rods1745have been modified. Several Holes1755bof roughly 0.125″ diameter in the same vertical plane as holes1755have been added to connector rods1745to a depth of roughly 0.25″. An extension rod1760bof roughly 0.5″ diameter inside wall thickness and 0.75″ outside diameter of approximately 1.5″ length includes a female threaded area1765bthrough one wall.1765bis roughly 0.25″ on center from one end. Through threads1765band into an appropriate hole1755bscrews a set screw1770bto frictionally attach one extension rod1760bto each connector rod1745. All remaining portions of the embodiment of the invention not specifically covered within this alternate embodiment follow the main embodiment.

Operation of the Seventh Embodiment Pedaler Device

The preceding describes use of extension rods1760badded to both connector rods1745. In operation, this alternate embodiment follows the operation of the first embodiment with the following exceptions. The entire invention can be oriented to increase distance between the nut1710, connector rods1745and crank arm190without moving base plate1000as noted in the main embodiment. This can be achieved by loosening set screws1770band sliding rod extensions1760balong connector rods1745until a proper fit such that extension rods1760bbecome the connection points to crank arm190rather than the connector rods1745.

Eighth Embodiment Pedaler Device

Referring toFIG. 4cand comparing toFIG. 4, crank interface arm1700and related parts are significantly modified.1700retains basic dimensions but removed are through hole1715and channel1720. A rectangular clip channel1774cof roughly 0.25″ wide is removed from the back surface of crank interface arm1700moving towards the front surface such that 0.25″ of material remain on both the front face and end of1700furthest from through hole1705. A female threads1776cvertically on center and approximately 0.25″ from the back surface of crank interface arm1700continues into the aforementioned clip channel1774c. A roughly horseshoe shaped preformed clip1772cof roughly 0.25″ thick rubber or other suitable material includes a rectangular removed area1775cwhich allows preformed clip1772cto slide forward and bottom out within front face of rectangular clip channel1774cleaving a pair of Clip ends1777cto protrude roughly 1.5″ beyond the front face of crank interface arm1700. According to one embodiment, removed area1775cis 1.5″ high and 3″ deep and full size of1772cincluding removed area1775cis 0.25″ thick, 2″ high and 3.25″ long. Through A pair of through holes1773cvertically on center and approximately 0.25″ from each remaining edge of preformed clip1772ccan pass a set screw1778cto frictionally secure the clip1772cwithin crank interface arm1700.

Operation of the Eighth Embodiment Pedaler Device

The preceding describes use of the preformed clip1772cin place of connector rods1745and related hardware shown inFIG. 4. In operation, this alternate embodiment follows the operation of the main embodiment with the following exceptions. Proper alignment shown inFIG. 5and described in the main embodiment is achieved when Clip ends1777cengage both edges of crank arm190rather then connector rods1745. Set Screw1778ccan be loosened and preformed clip1772ccan be adjusted within clip channel1774cand set screw retightened to frictionally lock preformed clip1772cin place. When required, disengaging the entire device may be achieved by loosening set screw1778cand simply removing preformed clip1772c. All remaining portions of the embodiment of the invention not specifically covered within this alternate embodiment follow the main embodiment.

A Nineth Embodiment Pedaler Device

Referring toFIG. 4dand comparing toFIG. 4, crank interface arm1700and related parts are modified to change the temporary connection means to the bicycle from the crank arm190to a pedal shaft196. The crank interface arm1700fromFIG. 4dhas the same basic dimensions from the main embodiment but with the following modifications. Through hole1715and channel1720are excluded. A pair of bores1780dof roughly 0.25″ diameter, horizontally on center and on center 0.75″ apart to a depth of 1.5″ are added. A rod fork1781dor u-shaped member frictionally locks by sliding fully into the bores1780dwhile pedal shaft196is contained inside the u-shape. According to one embodiment, rod fork1781dis preferably made of rubber, has round ends of roughly 0.25″ diameter and a total length of 4″.

Operation of the Nineth Embodiment Pedaler Device

The preceding describes use of the rod fork1781din place of connector rods1745and related hardware shown inFIG. 4. In operation, this alternate embodiment follows the operation of the main embodiment with the following exceptions. All clearance and alignment considerations surrounding connector rods1745and crank arm190, frame212and the invisible centerline of the bottom bracket are replaced with proper installation occurring when pedal shaft196is contained within the U shape of rod fork1781dand crank interface arm1700during rotation adequately clears all bike components. Rod fork1781dcontacts with the pedal shaft196rather then crank arm190. When required, disengaging the entire device may be achieved by pulling1781dout of both holes1780dand setting aside.

A Tenth Embodiment Pedaler Device

Referring toFIG. 4dand comparing toFIG. 4e, crank interface arm1700and related parts are modified. Rather then using two holes1780d, a rectangular shaped 0.25″ wide by 1.25″ high by 1.5″ deep rod fork channel bore1785eis added to crank interface arm1700. Roughly on center and at 0.25″ intervals, 0.125″ diameter through holes1784eare drilled on both the top and bottom surfaces of1700such that they terminate into the rod fork channel bore1785ethroughout the depth of1785e. A springed rod fork1782ealso a u-shaped member is similar dimensions to1781dhowever instead of being round in shape,1782eis square.1782ealso is typically made of a plastic material such as delrin such that the relaxed position of the ends of1782eyields a total height of the top of one end to the bottom of the second end to be approximately 1.28″. The K force of the springed rod fork should approximately be such that with a mild amount of hand force the aforementioned height reduces to 1.1″ without permanently bending the spring rod fork1782e. 0.25 inches from each the top and bottom outside services and 0.25″ on center of1782eare two retention pins1783eof 0.12″ diameter and 0.1″ tall above the surface of1782e. Applying adequate squeezing pressure to springed rod fork1782eallows the ends and subsequently retention rods to pass in and out of rod fork channel bore1785eand through holes1784e. Proper installation and operating instructions then follow embodiment4d.

From the description above, a number of advantages of some embodiments of my hands free bicycle pedaler become evident as listed below. It is to be appreciated that all advantages are not necessarily present on all embodiments.(1) An operator of my device can observe a bicycle drive train's operation without having to rely on a hand or a helpers' hand to turn a crank arm or pedal providing more focus on the specific objective, whether it be searching for sources of rattles, wobbles or squeaks.(2) Cleaning bicycle drive train parts such as chains, chain rings, cassettes or the rear wheel rim is made an easier task due to having the freedom to use both hands to firmly and safely hold rags or other items with more focused vision and better grip.(3) Applying lubricants or other treatments to a bicycle chain is a more reliable task due to a steadier and slower rotational speed of the chain then what a hand or helper is capable of.(4) Applying lubricants or other treatments to a bicycle chain is a quicker and easier task due to the fact that one hand can apply treatments while the other removes the excess at the same time, avoiding starts and stops.(5) Adjusting bicycle drive train limit stops and shifting indexes are an easier task. A smooth, consistent and hands free rotational rate of the drive train allows one hand the freedom to dedicate to adjusting the appropriate limit stops or shifting index barrel while the other hand can activate the appropriate shifter for testing. Muscle memory and lack of having to multi-task to keep the drive train going with a hand makes the adjustment process quicker and easier.(6) Allowing one hand to dedicate to making adjustments while the other hand dedicates to operating the appropriate shifter reduces the likelihood of transferring grit, grease or other unsightly and possibly hazardous chemicals to the bar tape and potentially into the riders' eyes later.(7) Allowing both hands to grip a tool or other item while maintaining visual focus on a rotating back wheel makes limit stop adjustments safer with the reduction of the likelihood that a tool or finger or other body part enters the rotational path of the bicycles' drive train.(8) Rotational speeds not practical to attempt during bicycle maintenance with current art can be achieved and sustained to diagnose and test fixes for speed wobbles, free hub noises or other related issues.(9) Existing bicycle work stands, benches or other stable method to secure the bicycle known to the art are compatible without modifications.(10) Existing bicycle designs of wheels, drive trains, frames, crank arms, pedal systems and other components known to the art are compatible without modifications.(11) Minimal floating surface contacts between my device and the bicycle only in locations designed for contact (such as pedals, pedal shafts and crank arms) protects other more expensive cycling components such as frames from undo contact.(12) A non-powered embodiment can work as a brake or a sort of lock out to keep a bicycle crank and thus other drive train parts from rotating when it isn't desired while continuing to provide both hands for productive work.(13) The small foot print required and capability to power directly from a source such as a cigarette lighter helps maintain equipment where otherwise it might be difficult due to a lack of hand cleaners or other items being readily available.(14) Engaging and disengaging my invention from a bicycle by multiple means provides methods to remove the invention from the system without disassembly.
Conclusion and other Embodiments

Accordingly, the reader will see that, according to one embodiment of the invention, I have provided a device capable of providing hands free operation of a bicycle drive train system to help with cleaning, maintenance and observations while said bicycle is connected to any number of repair stands currently on the market or ones that may enter the market. This has many improvements over current art described above.

While the above description contains many specificities; these should not be construed as limitations on the scope of any embodiment, but as exemplifications of the presently currently described embodiments thereof. Many other ramifications and variations are possible within the teachings of the various embodiments. Some examples of these being,1) Due to the wide number of motor types and designs, one may prove to be more efficient then the currently described embodiment.2) The motor plate, crank interface arm, motor carriage or other parts may be made of materials other then plastic. Aluminum, steel or other metals or alloys and other materials suitable for marketing purposes may be preferable in the manufacturing process.3) Specific hardware choices such as locking levers, bolts and others may be altered for other similar designs such as quick releases, clamps and the like common to the art.4) The specific dimensions of the crank interface arm, motor plate, top plate connector rods, may be increased or decreased based on desire to increase or decrease adjustability of the system or the specifics of the motor selected. It may prove to be advantageous to manufacture several individual versions with limited adjustability ranges for specific applications/end users.5) The base and tube may be inverted and attached to a ceiling using hardware such as toggle bolts or lag bolts or other adequate means to secure from a ceiling in situations where it is preferred.6) The base and support tube may be mounted horizontally or other angle to a wall or work bench using toggle bolts or lag bolts or other adequate means to secure the system where it is preferred.7) The base may be made of many materials and many shapes based upon the foot print available to fit within a given stand on the market or a specific look desired in a bike shop environment.8) The shape and dimensions of the tubular support post may be non round, such as oval, square, rectangle if deemed desirable and motor carriage may take that same shape or use a sleeve or insert.9) The tube may be telescopic in nature using slightly descending or ascending in diameter tubing with locking hardware such as clamps if desired.10) The tube, if telescopic or similar in nature may be spring loaded to assist in raising the height.11) The tube may be keyed with a Woodruff key or similar orientation locking device to further secure into base and or motor carriage.12) The tube may be welded, pressed or attached to the base in many ways known to the art.13) The tube may be secured in concrete or other adequate means eliminating the base in semi permanent installations.14) The tube and motor carriage may interact for easier height adjustment using a rack and pinion, pulleys, belts, linear actuators or any other mode of transmission.15) The motor may be enclosed within a housing such as a box shape or other item made of plastic or metal or other desired material to reduce sound, vibration or simply to provide a professional look.16) The motor communications cable can be split to use removable connections at the motor and or enclosure using terminals such as 3.5 mm stereo jacks, MOLEX or other similar connection methods known in the art.17) The interface rod pairs interfacing with the crank arm can be telescopic or include sleeves to increase the distance between the motor plate and the bicycle crank arm.18) The rubber rod pairs and related alternate embodiments can be made of alternate materials or covered with a softer material such as felt, fleece, cotton or other materials.19) The interface rod pairs can be a shape other then what are described in the current embodiment and the alternate embodiments if desired.20) The motor controller board covered in alternate embodiments can be replaced with a custom board with built in absolute max/min or slower forward start torque.21) The directional control switch can be a wide number of known devices in the art.22) The directional reverse indicator light can be used to light upon forward instead, or an additional indicator can be added.23) The speed pedal described in the currently described embodiment can be replaced with one that proves to be of better quality and or more affordable.24) The directional control switch can be replaced with a secondary pedal—having one pedal for forward and a second for reverse.25) The entire invention can be used to power a display bicycle to make it appear to be pedaling for trade shows or similar events rather then for maintenance purposes.26) The power enclosure may be physically attached or incorporate the speed pedal and or a base—or all three may remain separate.27) The tube may be split into several pieces of equal or unequal lengths which screw together or clamp together to support easier manufacturing and or shipping considerations.28) A battery powered or car accessory option known to the art may prove to be a marketing based accessory to the power enclosure.29) A commercially available pre-built AC-DC converter can replace the transformer currently described in the currently described embodiment.30) The preformed clip of alternate embodiment4cmay be of a different geometry to increase the distance between ends to support thicker crank arms.31) The ends of the preformed clip can be rounded or other shapes.32) The ends of the preformed clip can be covered with a felt like or other marring free material to support manufacturing of the entire clip of an alternate material such as plastic or metal.33) The dimensions of the motor carriage can be modified to connect directly to larger or smaller diameter bike stands similar to alternate embodiment2b, or a sleeve of plastic or other material can be used to take up extra space.34) The rod fork of embodiment4dcan be made of different materials such as aluminum or other materials.35) A knob, knurl or other material can be added to the end of rod fork from embodiment4dto enhance insertion and removal.36) Female/male order of several parts can be reversed. For instance, the rod fork may have hollow ends which slide over male tubes protruding from the crank interface arm from alternate embodiment4d.37) The springed rod fork from embodiment4emay be made of metal and covered with a non-marring surface.38) The springed rod fork from embodiment4emay be made of multiple pieces connected on one end with a hinged linkage and a compression spring.39) A pedal shaft accessory having only a shaft may be included to screw into a crank arm without having to use an actual pedal.40) The crank interface arm may include tracks in place of the holes in which the rod fork from embodiment4dsimply slides in and out of. The shapes of these tracks and corresponding rod fork may be other then that of round, such as square.