GB1208695A - Improvements in or relating to gear boxes - Google Patents

Improvements in or relating to gear boxes

Info

Publication number
GB1208695A
GB1208695A GB1294368A GB1294368A GB1208695A GB 1208695 A GB1208695 A GB 1208695A GB 1294368 A GB1294368 A GB 1294368A GB 1294368 A GB1294368 A GB 1294368A GB 1208695 A GB1208695 A GB 1208695A
Authority
GB
United Kingdom
Prior art keywords
gear
layshaft
input shaft
sleeve
output shaft
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
GB1294368A
Inventor
John Lewis
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.)
Rootes Motors Ltd
Original Assignee
Rootes Motors Ltd
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 Rootes Motors Ltd filed Critical Rootes Motors Ltd
Priority to GB1294368A priority Critical patent/GB1208695A/en
Publication of GB1208695A publication Critical patent/GB1208695A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • F16H2003/0936—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts with multiple countershafts comprising only two idle gears and one gear fixed to the countershaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0039—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising three forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/10—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with one or more one-way clutches as an essential feature

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

1,208,695. Change-speed gear. ROOTES MOTORS Ltd. 23 May, 1969 [18 March, 1968], No. 12943/68. Heading F2D. In a motor-vehicle constant-mesh doublelayshaft type C.S.G., first and second ratio gears 23, 24 freely mounted on an input shaft 15 are selectively synchronously coupled by the usual slidable splined synchronizer sleeve 31 and baulk rings 30 to the input shaft 15 and respectively mesh layshaft gears 36, 32, the latter gear 32 of which additionally meshes a gear 38 fast on an output shaft 39, the layshaft 1st gear 36 being mounted via a one-way clutch 37 on the layshaft 33 whereby gear changes from 2nd to 1st may be readily effected by the synchronizing sleeve and baulk ring 31, 30 without the necessity of speeding up the input shaft 15 and relevant parts via the synchronizer cones &c. thereby relieving the synchronizer of considerable load and wear during 2nd-1st downshifts. A further gear 53, fast on the input shaft 15, directly drives a second layshaft 48, the integral gears 46, 47 of which respectively mesh top and third ratio gears 43, 44 freely mounted on the output shaft 39 and similarly selectively synchronously coupled thereto by a further slidable baulk rings and sleeve, which sleeve may be additionally formed externally with teeth 55 selectively engaged by a slidable gear (not shown), on a further layshaft (not shown), driven from a gear 54 on the second layshaft for reverse drive to the output shaft 39. The top gear 43 may be mounted on the output shaft 39 via a one-way clutch 45 which serves as a stationary hill-hold, i.e. locks the gear-box on reverse overrun bias when the vehicle is parked facing uphill and first or second gear is engaged with the input shaft.
GB1294368A 1968-03-18 1968-03-18 Improvements in or relating to gear boxes Expired GB1208695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1294368A GB1208695A (en) 1968-03-18 1968-03-18 Improvements in or relating to gear boxes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1294368A GB1208695A (en) 1968-03-18 1968-03-18 Improvements in or relating to gear boxes

Publications (1)

Publication Number Publication Date
GB1208695A true GB1208695A (en) 1970-10-14

Family

ID=10013988

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1294368A Expired GB1208695A (en) 1968-03-18 1968-03-18 Improvements in or relating to gear boxes

Country Status (1)

Country Link
GB (1) GB1208695A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404154A1 (en) * 1977-09-22 1979-04-20 Deere & Co COMPOSITE TRANSMISSION MECHANISM THAT CAN BE MOUNTED BETWEEN A DRIVE MOTOR AND THE DRIVE WHEELS OF VEHICLES
US4658662A (en) * 1984-04-16 1987-04-21 Rundle Kenneth P Transmission and PTO system for tractors and utility cycles
US4799395A (en) * 1985-07-01 1989-01-24 Ab Volvo Motor vehicle gearbox with one-way clutch in first gear
WO1994015116A2 (en) * 1992-12-18 1994-07-07 Zf Friedrichshafen Ag Power-shiftable, multiple gear reversing gear box
FR2919701A1 (en) * 2007-07-30 2009-02-06 Renault Sas PARALLEL SHAFT GEARBOX WITH RAMP HOLD
CN107100963A (en) * 2017-06-02 2017-08-29 重庆隆旺机电有限责任公司 Multi-function variable-speed device assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404154A1 (en) * 1977-09-22 1979-04-20 Deere & Co COMPOSITE TRANSMISSION MECHANISM THAT CAN BE MOUNTED BETWEEN A DRIVE MOTOR AND THE DRIVE WHEELS OF VEHICLES
US4658662A (en) * 1984-04-16 1987-04-21 Rundle Kenneth P Transmission and PTO system for tractors and utility cycles
US4799395A (en) * 1985-07-01 1989-01-24 Ab Volvo Motor vehicle gearbox with one-way clutch in first gear
WO1994015116A2 (en) * 1992-12-18 1994-07-07 Zf Friedrichshafen Ag Power-shiftable, multiple gear reversing gear box
WO1994015116A3 (en) * 1992-12-18 1994-09-29 Zahnradfabrik Friedrichshafen Power-shiftable, multiple gear reversing gear box
US5592853A (en) * 1992-12-18 1997-01-14 Zf Friedrichshafen Ag Power-shiftable, multiple gear reversing gear box
FR2919701A1 (en) * 2007-07-30 2009-02-06 Renault Sas PARALLEL SHAFT GEARBOX WITH RAMP HOLD
CN107100963A (en) * 2017-06-02 2017-08-29 重庆隆旺机电有限责任公司 Multi-function variable-speed device assembly
CN107100963B (en) * 2017-06-02 2023-02-28 重庆隆旺机电有限责任公司 Multifunctional transmission assembly

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee