GB188178A - A five speed gear for bicycles and machinery - Google Patents

A five speed gear for bicycles and machinery

Info

Publication number
GB188178A
GB188178A GB2770421A GB2770421A GB188178A GB 188178 A GB188178 A GB 188178A GB 2770421 A GB2770421 A GB 2770421A GB 2770421 A GB2770421 A GB 2770421A GB 188178 A GB188178 A GB 188178A
Authority
GB
United Kingdom
Prior art keywords
gear
hub
gears
annulus
sleeve
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
Application number
GB2770421A
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 GB2770421A priority Critical patent/GB188178A/en
Publication of GB188178A publication Critical patent/GB188178A/en
Expired 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
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

188,178. Sturmey, J. J. H., and Peart, W. J. Oct. 19, 1921. Variable-speed epicyclic gearing suitable for cycle hubs comprises two trains with separate planet gears 9, 10, Fig. 1, and a single internally-toothed annulus 11 movable together laterally so that five speeds are obtained. The gears 9, 10 mesh respectively with sun gears 6, 5 of different diameters loose and slidable with the rest of the trains on a fixed axle 2. The driving-element is a clutch sleeve 4 and the driven element the hub shell 3. The middle speed, a one-to-one drive, is obtained by the position shown in Fig. 1. The drive passes across the sleeve 11<c> of the annulus 11 to ratchet pawls 3d on the hub. Then each train gears separately both up and down. One gear-down position is shown in Fig. 6. The annulus 11 is driven from the sleeve 4 in both low gears and the two-part planet carrier 7, 8 drives,the hub through pawls 3<c>. Sun gear 6 is held by a pawl 6<c> and recesses 2f, Fig. 4. The other gear-down position is obtained by movement farther to the left, when the gear 6 is freed and the gear 5 anchored by dogs 2d. One gear-up position is shown in Fig. 9. The planet-carrier 7, 8 is driven by a dog-end 8<b> engaging the sleeve 4 in both gear-up positions, and the annulus 11 drives the hub through the pawls 3d. The sun gear 6 is held by a pawl 6<b>, Fig. 4, engaging recesses 2<g>. The other gear-up position is obtained by movement farther to the right, when the gear 6 is freed and gear 5 is anchored by dogs 2e. In all cases the hub is ratchetdriven to allow coasting. Operation is effected by a collar 2<c> actuated by a spring plunger within the axle 2.
GB2770421A 1921-10-19 1921-10-19 A five speed gear for bicycles and machinery Expired GB188178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2770421A GB188178A (en) 1921-10-19 1921-10-19 A five speed gear for bicycles and machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2770421A GB188178A (en) 1921-10-19 1921-10-19 A five speed gear for bicycles and machinery

Publications (1)

Publication Number Publication Date
GB188178A true GB188178A (en) 1922-11-09

Family

ID=10263927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2770421A Expired GB188178A (en) 1921-10-19 1921-10-19 A five speed gear for bicycles and machinery

Country Status (1)

Country Link
GB (1) GB188178A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147860B (en) * 1960-03-10 1963-04-25 Fichtel & Sachs Ag Four-speed transmission hub with back pedal brake for bicycles
DE1236360B (en) * 1963-05-17 1967-03-09 Raleigh Industries Ltd Rotary gear change gear for bicycle hubs or the like.
CN106985964A (en) * 2017-05-11 2017-07-28 张家港川梭车业有限公司 Movable gear-shifting three-gear speed change device with single-wheel drive pawl

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147860B (en) * 1960-03-10 1963-04-25 Fichtel & Sachs Ag Four-speed transmission hub with back pedal brake for bicycles
DE1236360B (en) * 1963-05-17 1967-03-09 Raleigh Industries Ltd Rotary gear change gear for bicycle hubs or the like.
CN106985964A (en) * 2017-05-11 2017-07-28 张家港川梭车业有限公司 Movable gear-shifting three-gear speed change device with single-wheel drive pawl
CN106985964B (en) * 2017-05-11 2022-05-13 张家港川梭车业有限公司 Movable gear-shifting three-gear speed change device with single-wheel drive pawl

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