CA1199352A - Front wheel drive cycle - Google Patents
Front wheel drive cycleInfo
- Publication number
- CA1199352A CA1199352A CA000464376A CA464376A CA1199352A CA 1199352 A CA1199352 A CA 1199352A CA 000464376 A CA000464376 A CA 000464376A CA 464376 A CA464376 A CA 464376A CA 1199352 A CA1199352 A CA 1199352A
- Authority
- CA
- Canada
- Prior art keywords
- front wheel
- wheel
- axle
- cycle
- chainwheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004606 Fillers/Extenders Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000000875 corresponding effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001527806 Iti Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M1/00—Rider propulsion of wheeled vehicles
- B62M1/36—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Abstract
Concerning pedal driven front wheel drive cycles we know that the front wheel is not equiped with a crank gear. Also, there is no sprocket freewheel.
Consequently, there is no possibility for speeds on those cycles. In the present invention, there is a crank gear made with at least one chainwheel, an intermediate cogwheels mounting and a cycle wheel equiped with a sprocket freewheel. The front wheel axle is rotating by means of cranks with pedals and this movement is transmitted to the wheel freewheel using chains and front fork intermediate cogwheels.
The gear changes possibilities of that front wheel permit the manufacture of front wheel drive racing cycles. The front wheel is also steerable by means of a handlebar. The recumbent position adopted by the driver of this pedal driven front wheel drive racing cycle allow better performance than any conventional racing cycle.
Consequently, there is no possibility for speeds on those cycles. In the present invention, there is a crank gear made with at least one chainwheel, an intermediate cogwheels mounting and a cycle wheel equiped with a sprocket freewheel. The front wheel axle is rotating by means of cranks with pedals and this movement is transmitted to the wheel freewheel using chains and front fork intermediate cogwheels.
The gear changes possibilities of that front wheel permit the manufacture of front wheel drive racing cycles. The front wheel is also steerable by means of a handlebar. The recumbent position adopted by the driver of this pedal driven front wheel drive racing cycle allow better performance than any conventional racing cycle.
Description
The present inven-tlon i9 concernlny a pedal driven front wheel drive cycle addiny -the possibility of gear changes :Eor racingO
The rear wheel drive principle is actually the common practice in making racing cycles. The known pedal driven front wheel drive cycles do not have a crank year for speeds. Consequently they are not very -fas-t, thus limitiny -the usage to children.
I have discovered that it is possible to make pedal driven front wheel drive racing cycles provided with a crank gear. In addition, the recumbent rider position is an advantage. The fron-t wheel being the driving and steerable wheel. A complete cycle crank gear is used for gear changes. The wheel being steerable by means of a handlebar. T'ne ron-t wheel a~le instead of being motionless as Eor common racing cycles, is a live axle rotating by means of two bearings. The said bearings are positioned on the front wheel axle and adapted to the two front fork tips. The cranks with pedals and at least one chainwheel are fi~ed to the live wheel a~le ends.
Then, two, or more intermediate cog wheels are located on the upper portion of -the front fork. They are used to join together -the chainwheel and the freewheel hy means of chains on each sides of the -front wheel. Another advantaye of this approach is, that in usiny conventional bicycle parts, we can have a racing recumbent c~c:Le much more cheaper than well known pedal driven front wheel drive recumben-t c~-les l ~
~ '. )J
s;~
In addition, reclining rider position recluces the air resistance, makes bikiny easier and permits body shell design against the elements.
Relatively to -the drawings illustra-ting the invention, Fig. 1, is an elevati.onal view of the vehicle/
E'ig. 2, is a cross-sectional view of the Eront wheel mounting.
The pedal front wheel drive cycle illustrated in Fig. 1 is composed of a rame holding a steerable front wheel 12 for direction by means of a handlebar.
The front wheel being the driving wheel, driven by a crank gear. The pedal driven ront wheel drive cycle has also at least one rear wheel. A saddle, some standard cycle brakes ~ at least one step up gear change derailleur and a body shell complete the assembly of -the vehicle.
The Eigure 2 illustrates the driven and steerable front wheel. This front wheel 12 can be a conventional cycle rear wheel equiped with a sprocket freewheel 9, but the wheel axle 11 is adapted to receive two bearings ~, at least one chainwheel 5 and two cranks 6 with pedals. The crank gear of the cycle of my invention is composed of two cranks 6 with pedals, at least one chainwheel 5, an intermediate cog wheels mounting with at least two cog wheels 2, a sprocket Ereewheel 9, one chain 3 joining the chainwheel 5 with one intermediate cog wheel 2 and ~ 1 one chain 3 joining the freewheel 9 wlth the other intermediate cog wheel 2. At leas-t one gear change derailleur 4 can be added to -the cycle crank ~ear, positioned near he intermediate cog wheels or near the -freewheel or near the chainwheel to allow more speeds.
The fxont wheel axle 11 of the cycle of my invention, is not motionless and rigidly fixed at both fork tips like it is the common practice for conventional cycles. Instead, this front wheel axle 11 can turn by means o-f two bearings 8 adapted to be mounted at both front fork tips~ These two bearings can be -flanged bearings type. The rotating part of the two bearings 8 takes place on the wheel axle 11 each sides of the wheel hub 10 and at a distance corresponding with the distance between the ork tips. These two bearings 8 can be fixed to the :Eork tips in using screws or nuts and bolts. In -this manner, the front wheel 12 turn on his axle 11 and this axle turn inside bearings 8 fixed at both front -fork tips.
Both ends of the -front wheel axle 11 are adapted to receive the two cranks 6 with pedals and at least one chainwheel 5~ Cotterpin cranks or c-ot-terless cranks can be used for fixing at both ends oE -the wheel axle 11. The said wheel axle 11 ends are machined for the -t~pe of cranks used. A chainwheel 5 adapted to one of the two pedal cranks 6 is used to transmit the power from pedals to the in-termediate cog wheels 2. The chainwheel 5 and the two cranks 6 with pedals are rlgid]y -fixed toge-ther with the Eront wheel axle 11, ~hus, allowing -the wheel a~le to rotate in conjunction wi-th the chainwheel and the cranks wi-th pedals. Usually, the chainwheel, 5 is located on opposite side of the sprocket freewheel 9.
The fron-t wheel 12 could be fixed to the front fork 7 by using a hollow shafk and a dead axle ro-ta-ting inside of it. Tha hollow shaft being machined to accept the wheel hub components. The dead axle being machined Eor the fixation of the pedal cranks at both ends and to rotate inside the hollow shaEt with the help of bearings.. The said hollow shaf-t extremities being rigidly fixed to the front fork tips by means of nuts like it is the current practice for the fixation of cycles wheels axles.
To transmit the power from pedals to the -Eront wheel 12, it is necessary to use two intermediate cog wheels 2. These two cog wheels 2 are located on the upper end of the -front fork 7 at a distance from the wheel axle 11 being greater than the wheel radius. A
shaft~is used to lock together the two intermediate cog wheels 2. This said sha~tlwith cog wheels 2 is turning by means of two bushings or two bearinys rigidly fixed to the upper end of the front fork 7 The distance between the two cog wheels 2 corres-ponding to t'he distance between the chainwheel 5 and the sprocket freewheel 9. one of the intermediate cog wheels 2 being in straight line wi-th the chainwheel 5 ~9;~
and the other cog wheel being in strai.ght line with the sprocket :Ereewheel 9.
A complete intermediate hub with more than one rigidly ixed cog wheel a-t one end and a freewheel or more than one rigidly fixed cog wheel at the othe:r end can be employ instead of the two cog wheels mounting described be:Eore. Such mounting add much rnore speeds to the cycle.
Two chains 3 are used to join the chain~heel 5, the interrnediate cog w~leels 2 and the sprocket freewheel 9 permitting the cycle front wheel 12 to rotate by means of a cycle crank gear. One chain 3 permits to join the chainwheel 5 with the intermediate cog wheel 2 in straight line with it.
Another chain 3 permits to join the sprocket freewheel 9 wi-th second intermediate cog wheel 2 in straight line with it.
~ shaft extender can be employ at each ends o~
-the rotating -front wheel axle. A complete standard cycle wheel equiped with a freewheel can be used with the said shaft extender without an~ modification.
One extremity of the said sha~t extender is machined to accept a standard cotterpin or cotterless crank.
The rniddle of the shaft extender i 5 machined as to receive the central rotating part of the bearinys used to fix the wheel to the forls tips. The other extremity of the said shaft extender i5 bored along his axis and can also he threaded as to make a rigid junction with the wheel axle extrerD:ities. In addition, a co-t-terpln can be usecl to rigidly lock together the shaf-t extenders and the wheel axle~
In -the above description, the front wheel used :Eor my invention i5 a cycle standard par-t. The removable cranks used for my invention can be omi-t-ted if we use a bended Eront wheel axle or a crank axle.
The said bended axle would be the front wheel axle and the cranks in the same time.
Brie-fly, t'ne rider makes turning the cranks with pedals and in the same time the chainwheel. With the help of a cha.in, the chainwheel rnakes turning the cogwheel in straight line with i-t. The second cogwheel rigidly locked with the first via a snaft, makes turning the -freewheel with the help of another chain. Finallyl the front wheel of the cycle is turning and thus the cycle rides.
, .
The rear wheel drive principle is actually the common practice in making racing cycles. The known pedal driven front wheel drive cycles do not have a crank year for speeds. Consequently they are not very -fas-t, thus limitiny -the usage to children.
I have discovered that it is possible to make pedal driven front wheel drive racing cycles provided with a crank gear. In addition, the recumbent rider position is an advantage. The fron-t wheel being the driving and steerable wheel. A complete cycle crank gear is used for gear changes. The wheel being steerable by means of a handlebar. T'ne ron-t wheel a~le instead of being motionless as Eor common racing cycles, is a live axle rotating by means of two bearings. The said bearings are positioned on the front wheel axle and adapted to the two front fork tips. The cranks with pedals and at least one chainwheel are fi~ed to the live wheel a~le ends.
Then, two, or more intermediate cog wheels are located on the upper portion of -the front fork. They are used to join together -the chainwheel and the freewheel hy means of chains on each sides of the -front wheel. Another advantaye of this approach is, that in usiny conventional bicycle parts, we can have a racing recumbent c~c:Le much more cheaper than well known pedal driven front wheel drive recumben-t c~-les l ~
~ '. )J
s;~
In addition, reclining rider position recluces the air resistance, makes bikiny easier and permits body shell design against the elements.
Relatively to -the drawings illustra-ting the invention, Fig. 1, is an elevati.onal view of the vehicle/
E'ig. 2, is a cross-sectional view of the Eront wheel mounting.
The pedal front wheel drive cycle illustrated in Fig. 1 is composed of a rame holding a steerable front wheel 12 for direction by means of a handlebar.
The front wheel being the driving wheel, driven by a crank gear. The pedal driven ront wheel drive cycle has also at least one rear wheel. A saddle, some standard cycle brakes ~ at least one step up gear change derailleur and a body shell complete the assembly of -the vehicle.
The Eigure 2 illustrates the driven and steerable front wheel. This front wheel 12 can be a conventional cycle rear wheel equiped with a sprocket freewheel 9, but the wheel axle 11 is adapted to receive two bearings ~, at least one chainwheel 5 and two cranks 6 with pedals. The crank gear of the cycle of my invention is composed of two cranks 6 with pedals, at least one chainwheel 5, an intermediate cog wheels mounting with at least two cog wheels 2, a sprocket Ereewheel 9, one chain 3 joining the chainwheel 5 with one intermediate cog wheel 2 and ~ 1 one chain 3 joining the freewheel 9 wlth the other intermediate cog wheel 2. At leas-t one gear change derailleur 4 can be added to -the cycle crank ~ear, positioned near he intermediate cog wheels or near the -freewheel or near the chainwheel to allow more speeds.
The fxont wheel axle 11 of the cycle of my invention, is not motionless and rigidly fixed at both fork tips like it is the common practice for conventional cycles. Instead, this front wheel axle 11 can turn by means o-f two bearings 8 adapted to be mounted at both front fork tips~ These two bearings can be -flanged bearings type. The rotating part of the two bearings 8 takes place on the wheel axle 11 each sides of the wheel hub 10 and at a distance corresponding with the distance between the ork tips. These two bearings 8 can be fixed to the :Eork tips in using screws or nuts and bolts. In -this manner, the front wheel 12 turn on his axle 11 and this axle turn inside bearings 8 fixed at both front -fork tips.
Both ends of the -front wheel axle 11 are adapted to receive the two cranks 6 with pedals and at least one chainwheel 5~ Cotterpin cranks or c-ot-terless cranks can be used for fixing at both ends oE -the wheel axle 11. The said wheel axle 11 ends are machined for the -t~pe of cranks used. A chainwheel 5 adapted to one of the two pedal cranks 6 is used to transmit the power from pedals to the in-termediate cog wheels 2. The chainwheel 5 and the two cranks 6 with pedals are rlgid]y -fixed toge-ther with the Eront wheel axle 11, ~hus, allowing -the wheel a~le to rotate in conjunction wi-th the chainwheel and the cranks wi-th pedals. Usually, the chainwheel, 5 is located on opposite side of the sprocket freewheel 9.
The fron-t wheel 12 could be fixed to the front fork 7 by using a hollow shafk and a dead axle ro-ta-ting inside of it. Tha hollow shaft being machined to accept the wheel hub components. The dead axle being machined Eor the fixation of the pedal cranks at both ends and to rotate inside the hollow shaEt with the help of bearings.. The said hollow shaf-t extremities being rigidly fixed to the front fork tips by means of nuts like it is the current practice for the fixation of cycles wheels axles.
To transmit the power from pedals to the -Eront wheel 12, it is necessary to use two intermediate cog wheels 2. These two cog wheels 2 are located on the upper end of the -front fork 7 at a distance from the wheel axle 11 being greater than the wheel radius. A
shaft~is used to lock together the two intermediate cog wheels 2. This said sha~tlwith cog wheels 2 is turning by means of two bushings or two bearinys rigidly fixed to the upper end of the front fork 7 The distance between the two cog wheels 2 corres-ponding to t'he distance between the chainwheel 5 and the sprocket freewheel 9. one of the intermediate cog wheels 2 being in straight line wi-th the chainwheel 5 ~9;~
and the other cog wheel being in strai.ght line with the sprocket :Ereewheel 9.
A complete intermediate hub with more than one rigidly ixed cog wheel a-t one end and a freewheel or more than one rigidly fixed cog wheel at the othe:r end can be employ instead of the two cog wheels mounting described be:Eore. Such mounting add much rnore speeds to the cycle.
Two chains 3 are used to join the chain~heel 5, the interrnediate cog w~leels 2 and the sprocket freewheel 9 permitting the cycle front wheel 12 to rotate by means of a cycle crank gear. One chain 3 permits to join the chainwheel 5 with the intermediate cog wheel 2 in straight line with it.
Another chain 3 permits to join the sprocket freewheel 9 wi-th second intermediate cog wheel 2 in straight line with it.
~ shaft extender can be employ at each ends o~
-the rotating -front wheel axle. A complete standard cycle wheel equiped with a freewheel can be used with the said shaft extender without an~ modification.
One extremity of the said sha~t extender is machined to accept a standard cotterpin or cotterless crank.
The rniddle of the shaft extender i 5 machined as to receive the central rotating part of the bearinys used to fix the wheel to the forls tips. The other extremity of the said shaft extender i5 bored along his axis and can also he threaded as to make a rigid junction with the wheel axle extrerD:ities. In addition, a co-t-terpln can be usecl to rigidly lock together the shaf-t extenders and the wheel axle~
In -the above description, the front wheel used :Eor my invention i5 a cycle standard par-t. The removable cranks used for my invention can be omi-t-ted if we use a bended Eront wheel axle or a crank axle.
The said bended axle would be the front wheel axle and the cranks in the same time.
Brie-fly, t'ne rider makes turning the cranks with pedals and in the same time the chainwheel. With the help of a cha.in, the chainwheel rnakes turning the cogwheel in straight line with i-t. The second cogwheel rigidly locked with the first via a snaft, makes turning the -freewheel with the help of another chain. Finallyl the front wheel of the cycle is turning and thus the cycle rides.
, .
Claims (5)
1. A pedal driven front wheel drive recumbent cycle comprising a frame having a steerable front wheel, steered by a handlebar, said front wheel being the driving wheel, driven by a crank means; a brake; at least one gear change derailleur and at least one rear wheel; said front wheel connected to a front fork by two bearings fitted to the front wheel axle, allowing said front wheel axle to rotate freely; both ends of said front wheel axle adapted to accomodate said crank means; at least one chainwheel fixed on one end of said front wheel axle and a sprocket freewheel mounted on the other side of the wheel;
said crank means comprising two cranks with pedals;
mounting means for intermediate cog wheels comprising an axle rotatably mounted on the upper end of the front fork and having at least one cog wheel fixed on each end and wherein one of said cogs is aligned with and connected by a chain to the chainwheel and the other of said cogs is aligned witn and connected by a chain to the sprocket freewheel.
said crank means comprising two cranks with pedals;
mounting means for intermediate cog wheels comprising an axle rotatably mounted on the upper end of the front fork and having at least one cog wheel fixed on each end and wherein one of said cogs is aligned with and connected by a chain to the chainwheel and the other of said cogs is aligned witn and connected by a chain to the sprocket freewheel.
2. A cycle has defined in claim 1 but where the front wheel axle extremeties are provided with a rigidly locked shaft extender, the said shaft extender being machined to receive the said bearings adapted to the front fork, the chainwheel and the two cranks with pedals.
3. A cycle as defined in claim 2 but where the said wheel axle is replaced by an hollow shaft with a live axle turning inside of it, the said hollow shaft being machined to accept the wheel hub components and to permit direct mounting of the said front wheel to the said front fork tips without fork bearings, the said live axle extremities being machined for the fixation of the chainwheel and the two cranks with pedals.
4. A cycle as defined in claim 1 or claim 2 or claim 3 but where the said intermediate cog wheels mounting on upper end of the front fork is replaced by a hub having a freewheel with at least one sprocket at one extremety and a rigidly locked cog wheel at the other extremity, the axle of the said hub being used for the fixation of the said hub mounting on upper end of the front fork.
5. A cycle as defined in claim 1 but where the brake is part of the front wheel hub components, thus making a coaster on the front wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000464376A CA1199352A (en) | 1984-10-01 | 1984-10-01 | Front wheel drive cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000464376A CA1199352A (en) | 1984-10-01 | 1984-10-01 | Front wheel drive cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1199352A true CA1199352A (en) | 1986-01-14 |
Family
ID=4128811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000464376A Expired CA1199352A (en) | 1984-10-01 | 1984-10-01 | Front wheel drive cycle |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1199352A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006110389A1 (en) * | 2005-04-08 | 2006-10-19 | Hauer Jerome E | Common axis drive and shift system |
| DE102018119261A1 (en) * | 2018-06-06 | 2019-12-12 | Hans Christian Görrissen | Bicycle with manual transmission |
-
1984
- 1984-10-01 CA CA000464376A patent/CA1199352A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006110389A1 (en) * | 2005-04-08 | 2006-10-19 | Hauer Jerome E | Common axis drive and shift system |
| DE102018119261A1 (en) * | 2018-06-06 | 2019-12-12 | Hans Christian Görrissen | Bicycle with manual transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |