GB976591A - Two-speed gear hub - Google Patents

Two-speed gear hub

Info

Publication number
GB976591A
GB976591A GB801262A GB801262A GB976591A GB 976591 A GB976591 A GB 976591A GB 801262 A GB801262 A GB 801262A GB 801262 A GB801262 A GB 801262A GB 976591 A GB976591 A GB 976591A
Authority
GB
United Kingdom
Prior art keywords
ratchet
brake
gear
hub
bicycle
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
GB801262A
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.)
ZF Sachs AG
Original Assignee
Fichtel and Sachs AG
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 Fichtel and Sachs AG filed Critical Fichtel and Sachs AG
Publication of GB976591A publication Critical patent/GB976591A/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)
  • Transmission Devices (AREA)

Abstract

976,591. Change-speed gear. FICHTEL & SACHS A.G. March 1, 1962 [March 11, 1961], No. 8012/62. Heading F2D. [Also in Division B7] In a combined twospeed gear and brake hub for a bicycle of the kind wherein a simple sunring train with permanently fixed sun 24 provides over - and direct - drive by selectively clutching an input sprocket hub 4 to the planet carrier 19 or ring gear 21, which latter drives a wheel hub 7 through a ratchet clutch 31 and the formar is helically splined to a brake cone 25 which moves axially to engage a brake 26 on back-pedalling, a second ratchet clutch 30 is provided between the brake cone 25 and wheel hub 7 and a lost motion coupling 29 is provided between the ring gear 21 and first ratchet clutch 31 so that if the bicycle is wheeled backwards after braking the pawls of the second ratchet 30 are picked up by the ratchet teeth 33 and disengage the brake prior to reverse rotation of the gear. The angular lost motion of the coupling 29 is greater than the angle between the teeth of the ratchet 30.
GB801262A 1961-03-11 1962-03-01 Two-speed gear hub Expired GB976591A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF33397A DE1141904B (en) 1961-03-11 1961-03-11 Two-gear hub for bicycles or the like.

Publications (1)

Publication Number Publication Date
GB976591A true GB976591A (en) 1964-12-02

Family

ID=7095077

Family Applications (1)

Application Number Title Priority Date Filing Date
GB801262A Expired GB976591A (en) 1961-03-11 1962-03-01 Two-speed gear hub

Country Status (4)

Country Link
CH (1) CH399931A (en)
DE (1) DE1141904B (en)
FR (1) FR1317536A (en)
GB (1) GB976591A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110626458A (en) * 2019-10-18 2019-12-31 姜立人 Accelerator capable of accelerating bicycle to move forwards by pedaling backwards

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110626458A (en) * 2019-10-18 2019-12-31 姜立人 Accelerator capable of accelerating bicycle to move forwards by pedaling backwards

Also Published As

Publication number Publication date
CH399931A (en) 1965-09-30
FR1317536A (en) 1963-02-08
DE1141904B (en) 1962-12-27

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