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FR2352223A1 - Synchronising mechanism for automobile gearbox - has sliding sleeve connected to synchronising rings at low speed (SW 12.12.77) - Google Patents

Synchronising mechanism for automobile gearbox - has sliding sleeve connected to synchronising rings at low speed (SW 12.12.77)

Info

Publication number
FR2352223A1
FR2352223A1 FR7614756A FR7614756A FR2352223A1 FR 2352223 A1 FR2352223 A1 FR 2352223A1 FR 7614756 A FR7614756 A FR 7614756A FR 7614756 A FR7614756 A FR 7614756A FR 2352223 A1 FR2352223 A1 FR 2352223A1
Authority
FR
France
Prior art keywords
synchronising
rings
low speed
sliding sleeve
sliding
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.)
Granted
Application number
FR7614756A
Other languages
French (fr)
Other versions
FR2352223B1 (en
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 Friedrichshafen AG
Original Assignee
ZF Friedrichshafen 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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to FR7614756A priority Critical patent/FR2352223A1/en
Publication of FR2352223A1 publication Critical patent/FR2352223A1/en
Application granted granted Critical
Publication of FR2352223B1 publication Critical patent/FR2352223B1/fr
Granted 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • F16D23/08—Arrangements for synchronisation, also for power-operated clutches with a blocking mechanism that only releases the clutching member on synchronisation
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H2063/3093—Final output elements, i.e. the final elements to establish gear ratio, e.g. coupling sleeves or other means establishing coupling to shaft
    • 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
    • F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/38—Inputs being a function of speed of gearing elements
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/16—Inhibiting  or initiating  shift during unfavourable conditions , e.g. preventing forward-reverse shift at high vehicle speed, preventing engine overspeed  

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

The constant mesh gears (2, 3) of an automobile gear box are mounted on needle roller bearings in the shaft (1). Either gear (2, 3) can be rotationally connected to the shaft (1) by sliding the internally toothed sleeve (5) which engages teeth on the inner ring (4) and the dogs (8 or 9) of the required gear wheel (2 or 3). To facilitate engagement at low speeds the synchronising rings (6) and (7) are provided with teeth that engage sliding weights (14). These sliding weights slide in slots in the sleeve (5) and at low speeds fall towards the centre and engage slots in the rings (6, 7). At high speeds when synchronisation is not required the weights move outwards and release the ring (6, 7).
FR7614756A 1976-05-17 1976-05-17 Synchronising mechanism for automobile gearbox - has sliding sleeve connected to synchronising rings at low speed (SW 12.12.77) Granted FR2352223A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7614756A FR2352223A1 (en) 1976-05-17 1976-05-17 Synchronising mechanism for automobile gearbox - has sliding sleeve connected to synchronising rings at low speed (SW 12.12.77)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7614756A FR2352223A1 (en) 1976-05-17 1976-05-17 Synchronising mechanism for automobile gearbox - has sliding sleeve connected to synchronising rings at low speed (SW 12.12.77)

Publications (2)

Publication Number Publication Date
FR2352223A1 true FR2352223A1 (en) 1977-12-16
FR2352223B1 FR2352223B1 (en) 1982-06-25

Family

ID=9173203

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7614756A Granted FR2352223A1 (en) 1976-05-17 1976-05-17 Synchronising mechanism for automobile gearbox - has sliding sleeve connected to synchronising rings at low speed (SW 12.12.77)

Country Status (1)

Country Link
FR (1) FR2352223A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469627A1 (en) * 1979-09-06 1981-05-22 Getrag Getriebe Zahnrad GEARBOX FOR MOTOR VEHICLE
FR2496818A1 (en) * 1980-12-19 1982-06-25 Zahnradfabrik Friedrichshafen DEVICE FOR LOCKING ACCORDING TO THE SPEED OF A GEARBOX
DE10255802A1 (en) * 2002-11-29 2004-06-17 Daimlerchrysler Ag Automotive automatic gear selector unit has a ratchet and detent applying a pre-synchronisation load greater than 150 N

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392520A (en) * 1940-08-08 1946-01-08 Benz Helmut Combined hydromechanical gear
GB625476A (en) * 1947-03-19 1949-06-28 Vickers Armstrongs Ltd Improvements in synchronous mechanical clutches
US2718950A (en) * 1951-12-05 1955-09-27 Clark Equipment Co Clutch mechanism
US2735528A (en) * 1956-02-21 dodge
GB1224087A (en) * 1968-07-08 1971-03-03 Citroen Sa Improvements in and relating to gear boxes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735528A (en) * 1956-02-21 dodge
US2392520A (en) * 1940-08-08 1946-01-08 Benz Helmut Combined hydromechanical gear
GB625476A (en) * 1947-03-19 1949-06-28 Vickers Armstrongs Ltd Improvements in synchronous mechanical clutches
US2718950A (en) * 1951-12-05 1955-09-27 Clark Equipment Co Clutch mechanism
GB1224087A (en) * 1968-07-08 1971-03-03 Citroen Sa Improvements in and relating to gear boxes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469627A1 (en) * 1979-09-06 1981-05-22 Getrag Getriebe Zahnrad GEARBOX FOR MOTOR VEHICLE
FR2496818A1 (en) * 1980-12-19 1982-06-25 Zahnradfabrik Friedrichshafen DEVICE FOR LOCKING ACCORDING TO THE SPEED OF A GEARBOX
DE10255802A1 (en) * 2002-11-29 2004-06-17 Daimlerchrysler Ag Automotive automatic gear selector unit has a ratchet and detent applying a pre-synchronisation load greater than 150 N

Also Published As

Publication number Publication date
FR2352223B1 (en) 1982-06-25

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Legal Events

Date Code Title Description
ST Notification of lapse