GB1338657A – Chain shifting means for derailleur speed changing devices
– Google Patents
GB1338657A – Chain shifting means for derailleur speed changing devices
– Google Patents
Chain shifting means for derailleur speed changing devices
Info
Publication number
GB1338657A
GB1338657A
GB1338657DA
GB1338657A
GB 1338657 A
GB1338657 A
GB 1338657A
GB 1338657D A
GB1338657D A
GB 1338657DA
GB 1338657 A
GB1338657 A
GB 1338657A
Authority
GB
United Kingdom
Prior art keywords
chain
shift
sprocket
larger sprocket
carrier
Prior art date
1971-06-29
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
Application number
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.)
1971-06-29
Filing date
1971-06-29
Publication date
1973-11-28
1971-06-29
Application filed by Individual
filed
Critical
Individual
1973-11-28
Publication of GB1338657A
publication
Critical
patent/GB1338657A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
B62M9/121—Rear derailleurs
B62M9/126—Chain guides; Mounting thereof
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
B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
B62M9/121—Rear derailleurs
B62M9/124—Mechanisms for shifting laterally
B62M9/1242—Mechanisms for shifting laterally characterised by the linkage mechanisms
Abstract
1338657 Chain-shift change-speed gear M MORSE 29 June 1971 30335/71 Heading F2D In a derailleur-type chain-shift change-speed gear for cycles having a laterally shiftable carrier 80, supporting two jockey pulleys 101, 102, 102, mounted on a parallel linkage 50, 51, one end of which is privotally mounted at 66, 67 on a bracket 60, fixed adjacent the rear wheel spindle, and the other end 87, 72 of which carries a pivot block 52 on which the jockey pulley carrier 80 is laterally ajustable by a screw 75, for initial setting purposes, and torsionally spring biased, in a clockwise direction, by a spring 79 to effectively compensate for the difference in the working length of the chain and maintain correct chain tension during ratio change, i.e. shifting the chain into engagement with any one of a series of sprockets 11 to 15 having different radii of progressively increasing magnitude, the sprockets being formed with 9, 14, 20, 30 and 45 teeth respectively in goemetric progression with the increments in radii between each pair of adjacent sprockets thus increasing progressively from the smallest 11 to the largest sprocket 15, the arrangement is such that during each chain shift e.g. from sprocket 11 into engagement with the next larger sprocket 12, to obtain a lower ratio, the jockey pulley 101 is first caused by displacement of the carrier 80 to move closely adjacent the periphery of the next larger sprocket 12, and in alignment therewith (Fig. 1), whereby the chain 16 is constrained, i.e. pinched, to feed directly on to said next larger sprocket 12, whereupon the jockey pulley 101 is then caused to undergo an outwards radial displacement relative the hub axis to accommodate the winding of the chain 16 around said next larger sprocket 12 (Fig. 2), the radial displacement during each change to a lower ratio other than the lowest ratio being substantially equal to the increment in radius between the larger sprocket 12 to which the chain is shifted and the following larger sprocket 13 in the series. The derailleur shift is operated in the usual manner by a cable 39 acting on a bell-crank arm 88 of the parallel linkage 50, 51. In Fig. 10 (not shown) the jockey carrier (151) is connected to the fixed frame bracket by parallel link arms (147, 148) turnable through 90 degrees for the full range of chain-shift.
GB1338657D
1971-06-29
1971-06-29
Chain shifting means for derailleur speed changing devices
Expired
GB1338657A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB3033571
1971-06-29
Publications (1)
Publication Number
Publication Date
GB1338657A
true
GB1338657A
(en)
1973-11-28
Family
ID=10306009
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1338657D
Expired
GB1338657A
(en)
1971-06-29
1971-06-29
Chain shifting means for derailleur speed changing devices
Country Status (1)
Country
Link
GB
(1)
GB1338657A
(en)
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4362522A
(en)
*
1978-12-04
1982-12-07
Huret Roger H M
Derailleur for a chainwheel assembly for a bicycle
FR2515604A1
(en)
*
1981-10-29
1983-05-06
Perotti Ofmega Snc
PERFECTED SPEED CHANGE FOR BICYCLES
CN114406209A
(en)
*
2022-01-05
2022-04-29
天润工业技术股份有限公司
Three-pair template collinear production uninterrupted conversion device
1971
1971-06-29
GB
GB1338657D
patent/GB1338657A/en
not_active
Expired
Cited By (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4362522A
(en)
*
1978-12-04
1982-12-07
Huret Roger H M
Derailleur for a chainwheel assembly for a bicycle
FR2515604A1
(en)
*
1981-10-29
1983-05-06
Perotti Ofmega Snc
PERFECTED SPEED CHANGE FOR BICYCLES
CN114406209A
(en)
*
2022-01-05
2022-04-29
天润工业技术股份有限公司
Three-pair template collinear production uninterrupted conversion device
CN114406209B
(en)
*
2022-01-05
2023-08-15
天润工业技术股份有限公司
Uninterrupted conversion device for collinear production of three pairs of templates
Similar Documents
Publication
Publication Date
Title
US3748916A
(en)
1973-07-31
Chain shifting means for derailleur speed changing devices
GB1342569A
(en)
1974-01-03
Device for shifting particularly but not exclusively a cycle achain from one chainwheel of the cycle to another
US3803933A
(en)
1974-04-16
Gear shift device particularly for bicycles
US3979962A
(en)
1976-09-14
Bicycle gear shift derailleur
US4500302A
(en)
1985-02-19
Derailler for a cycle having an orientable chain guiding device
US3661021A
(en)
1972-05-09
Multiple free wheel for a bicycle
GB1425158A
(en)
1976-02-18
Chain wheel shifting device for bicycles and the like
US3896679A
(en)
1975-07-29
Bicycle derailer
GB1269430A
(en)
1972-04-06
Derailleur gear system for a bicycle or the like
US3847028A
(en)
1974-11-12
Leaf spring biased derailleur arrangement
US7597638B2
(en)
2009-10-06
Transmission
US3972244A
(en)
1976-08-03
Variable drive bicycle transmission
US4810235A
(en)
1989-03-07
Variable transmission with an integral shifter
GB1338657A
(en)
1973-11-28
Chain shifting means for derailleur speed changing devices
GB2062142A
(en)
1981-05-20
Variable diameter transmission wheel
GB1507364A
(en)
1978-04-12
Shifting mechanism for a bicycle derailleur
US4378222A
(en)
1983-03-29
Derailler system for a bicycle
US4343613A
(en)
1982-08-10
Derailler system
US1892067A
(en)
1932-12-27
Chain transmission gearing
US729197A
(en)
1903-05-26
Motor-cycle gear.
US3583249A
(en)
1971-06-08
Chain shifting means for derailleur speed changing devices
GB1353705A
(en)
1974-05-22
Derailleur gear particularly for a bicycle
US4274828A
(en)
1981-06-23
Derailleur gear-change assembly for a bicycle
GB1498168A
(en)
1978-01-18
Motorcycle suspension and drive arrangement
US3710636A
(en)
1973-01-16
Method of producing a bicycle chain shifting device and the same produced thereby
Legal Events
Date
Code
Title
Description
1974-04-10
PS
Patent sealed
1979-02-14
PCNP
Patent ceased through non-payment of renewal fee
