GB2439936A - Cycle transmission with multiple inputs - Google Patents

Cycle transmission with multiple inputs Download PDF

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Publication number
GB2439936A
GB2439936A GB0613741A GB0613741A GB2439936A GB 2439936 A GB2439936 A GB 2439936A GB 0613741 A GB0613741 A GB 0613741A GB 0613741 A GB0613741 A GB 0613741A GB 2439936 A GB2439936 A GB 2439936A
Authority
GB
United Kingdom
Prior art keywords
crank
rotating
chain
cranks
powered
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.)
Withdrawn
Application number
GB0613741A
Other versions
GB0613741D0 (en
Inventor
Luke Roberson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB0613741A priority Critical patent/GB2439936A/en
Publication of GB0613741D0 publication Critical patent/GB0613741D0/en
Publication of GB2439936A publication Critical patent/GB2439936A/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/02—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of unchangeable ratio
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K3/00—Bicycles
    • B62K3/12—Tandems
    • 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
    • B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
    • B62M1/30—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by the use of intermediate gears

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Transmission Devices (AREA)

Abstract

Two parallel shafts (2) having respective inputs from pedal sets are interlinked by respective cogs (3) at both ends of the shafts so that they rotate in opposite directions. One shaft (2) has an extension (6) to deliver driving power to a wheel via a large sprocket (7). Each shaft (2) has one or more toothed sprockets (4) accepting a chain driven by a given pedal set.

Description

<p>Specification</p>
<p>Cycle Power Merge Unit</p>
<p>Background</p>
<p>This invention relates to combining the pedalling motions from cyclists, turning in opposite directions into the combined turning motion in one single direction</p>
<p>Statement of invention</p>
<p>To counter this problem the invention proposes running 2 cranks parallel to each other and have them linked by 2 large cogs at either end of each crank. Thus harmoniously interlinking the motion of one crank rotating in the opposite direction to the other crank Advantages The motion of one crank turning in the opposite direction to the one parallel to it assists the rotation of that crank in the opposite direction to itself. This allows people pedalling in opposite, but linear directions to combine their cycling efforts to turn one single crank in one direction. This invention allows this to happen with a small number of moving parts.</p>
<p>Introduction to drawings</p>
<p>Figure A is an overhead view of the invention. Figure B shows a side view of its length, and figure C shows a side view of its narrower width.</p>
<p>Key: 1. supporting frame 2. crank 3. cogs 4. toothed sprocket 5. right-angle gear 6. extended crank 7. large toothed sprocket 8. direction of crank rotation 9. cycle chain 10. jockey wheels supporting chain 11. direction of cycling rotation 12. bearings allowing free rotation of crank whilst supported by the frame.</p>
<p>13. sprocket rotated directly by cyclist.</p>
<p>Description</p>
<p>Figure A: (1). Is the frame which supports the moving parts. (2). Is the rotating crank which is a long round bar and is able to rotate freely from the pivots at either end of its length, depicted by bearings (12). The cogs marked (3) are interlinked and are the only two points where the two cranks are connected. (4) are the toothed cycling sprockets, which are fixed to the crank and receive the turning force from the cyclist as depicted in figure C. This turning force is delivered by a cycle chain (9) and the pedalling motion drives a chain which drives a sprocket and then turns the crank (2). Each crank is set up symmetrically to the other. The direction of the turning forces as projected on each crank are depicted by (8). Both cranks can move in either direction but always move in the opposite direction to each other.</p>
<p>The turning force of either crank througi the linked cogs projects a turning force on the other in the opposite direction. Only one of the cranks is extended (6) to then deliver a single turning force which is a combination of the power delivered to both cranks from their respective cyclists. This single turning force is then directed through a right-angle gear (5), which leads to a sprocket(7) to provide drive via a chain to an axel connected to a wheel.</p>
<p>Figure C: This shows the mechanism from the side and how the motion of two example cyclists interacts with the cranks. Both cyclists (13) are facing each other and are pedalling in the opposite direction. The chain (9) leads to the sprockets(4) on the crank (2) by passing around small wheels (10). The direction of the motion of pedalling (11) has the effect of the motion of movement (8) on the crank. Each crank moves in the opposite direction but the respective turning forces are combined. If the direction of pedalling was the reverse to the arrows shown, the direction of the movement of the crank(8) would also be the reverse to the arrows shown.</p>

Claims (1)

  1. <p>Claims I.Two rotating cranks, both moving in the opposite direction are
    connected with two interlinking cogs at both ends to produce one combined rotating crank, which itself is an extension of one of the two cranks.</p>
    <p>2. Two rotating cranks linked as in claim I., which are powered by the movement of a chain which rotates each crank by rotating a toothed sprocket which is fixed to a crank.</p>
    <p>3. A rotating crank as in claim two for which the chain is powered by the motion of cycling in order to pass the chain through its path around the toothed sprockets.</p>
    <p>4. A rotating crank which is powered by cycling as in claim 3, which can be powered by any number of cyclists as the number of toothed sprockets along each crank increases. :3</p>
GB0613741A 2006-07-10 2006-07-10 Cycle transmission with multiple inputs Withdrawn GB2439936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0613741A GB2439936A (en) 2006-07-10 2006-07-10 Cycle transmission with multiple inputs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0613741A GB2439936A (en) 2006-07-10 2006-07-10 Cycle transmission with multiple inputs

Publications (2)

Publication Number Publication Date
GB0613741D0 GB0613741D0 (en) 2006-08-23
GB2439936A true GB2439936A (en) 2008-01-16

Family

ID=36955428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0613741A Withdrawn GB2439936A (en) 2006-07-10 2006-07-10 Cycle transmission with multiple inputs

Country Status (1)

Country Link
GB (1) GB2439936A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB692805A (en) * 1950-09-25 1953-06-17 Andre Louis Havet Reciprocating pedalling mechanism for the continuous drive of bicycles and like vehicles
FR2290343A1 (en) * 1974-11-08 1976-06-04 Datheil Emile Bicycle pedal mechanism - has synchromised reciprocating pedals in anti-phase driving chain support plate shaft
US3984129A (en) * 1974-07-15 1976-10-05 Hege Advanced Systems Corporation Reciprocating pedal drive mechanism for a vehicle
JPS59118527A (en) * 1982-12-24 1984-07-09 Kimihiro Tsuchie Drive system for bicycle
WO1996022911A1 (en) * 1995-01-27 1996-08-01 David John Christiansen A drive mechanism for a manually powered vehicle
US20020152836A1 (en) * 2001-03-05 2002-10-24 Kai-Ping Wang Power-saving driving device for treading pedals of bicycle
WO2005014384A1 (en) * 2003-08-07 2005-02-17 Santiago Arnes Carrasco Bilateral, alternating traction system for bicycles and tricycles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB692805A (en) * 1950-09-25 1953-06-17 Andre Louis Havet Reciprocating pedalling mechanism for the continuous drive of bicycles and like vehicles
US3984129A (en) * 1974-07-15 1976-10-05 Hege Advanced Systems Corporation Reciprocating pedal drive mechanism for a vehicle
FR2290343A1 (en) * 1974-11-08 1976-06-04 Datheil Emile Bicycle pedal mechanism - has synchromised reciprocating pedals in anti-phase driving chain support plate shaft
JPS59118527A (en) * 1982-12-24 1984-07-09 Kimihiro Tsuchie Drive system for bicycle
WO1996022911A1 (en) * 1995-01-27 1996-08-01 David John Christiansen A drive mechanism for a manually powered vehicle
US20020152836A1 (en) * 2001-03-05 2002-10-24 Kai-Ping Wang Power-saving driving device for treading pedals of bicycle
WO2005014384A1 (en) * 2003-08-07 2005-02-17 Santiago Arnes Carrasco Bilateral, alternating traction system for bicycles and tricycles

Also Published As

Publication number Publication date
GB0613741D0 (en) 2006-08-23

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)