GB1453277A - Synchromesh gearboxes - Google Patents

Synchromesh gearboxes

Info

Publication number
GB1453277A
GB1453277A GB617675A GB617675A GB1453277A GB 1453277 A GB1453277 A GB 1453277A GB 617675 A GB617675 A GB 617675A GB 617675 A GB617675 A GB 617675A GB 1453277 A GB1453277 A GB 1453277A
Authority
GB
United Kingdom
Prior art keywords
clutch
hub
gears
sleeve
engagement
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
GB617675A
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.)
LANCIA C FABBRICA AUTOMOBILI TORONO SpA
Original Assignee
LANCIA C FABBRICA AUTOMOBILI TORONO SpA
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 LANCIA C FABBRICA AUTOMOBILI TORONO SpA filed Critical LANCIA C FABBRICA AUTOMOBILI TORONO SpA
Publication of GB1453277A publication Critical patent/GB1453277A/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
    • 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
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to 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
    • 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
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
    • F16D2023/0618—Details of blocking mechanism comprising a helical spring loaded element, e.g. ball
    • 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
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
    • F16D2023/0656—Details of the tooth structure; Arrangements of teeth
    • 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
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
    • F16D2023/0656—Details of the tooth structure; Arrangements of teeth
    • F16D2023/0662—Details relating to special geometry of arrangements of teeth

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

1453277 Positive clutches LANCIA & C FABBRICA AUTOMOBILI TORINO SpA 13 Feb 1975 [7 March 1974] 6176/75 Heading F2C In a baulk-ring synchronized positive clutch for a change speed gear wherein an internally toothed clutch sleeve 13 is axially slidable on a hub 2b into engagement with clutch teeth 24 carried by gears 27a, 27b and coned friction synchronizing rings 16 have limited circumferential movement relative to the hub 2b and are engageable with coned surfaces 22 fast with the gears 27a, 27b, initial axial movement of the clutch sleeve 13 is transmitted to the synchronizing rings 16 by rollers 12 housed in recesses 7 in the hub 2b and urged by springs 9 into engagement with a groove 15 in the sleeve 13. The coned surfaces 22 and clutch teeth 24 are formed on rings 23 splined at 25 to the gears 27a, 27b. During clutch engagement frictional drag between the coned surfaces rotates the synchronizing ring 16 relative to the hub 2b so that teeth 24 thereon baulk further movement of the clutch sleeve 13 until synchronism is attained.
GB617675A 1974-03-07 1975-02-13 Synchromesh gearboxes Expired GB1453277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6763274A IT1009231B (en) 1974-03-07 1974-03-07 SYNCHRONIZING DEVICE FOR VEHICLE SPEED CHANGES

Publications (1)

Publication Number Publication Date
GB1453277A true GB1453277A (en) 1976-10-20

Family

ID=11304065

Family Applications (1)

Application Number Title Priority Date Filing Date
GB617675A Expired GB1453277A (en) 1974-03-07 1975-02-13 Synchromesh gearboxes

Country Status (3)

Country Link
FR (1) FR2263427A1 (en)
GB (1) GB1453277A (en)
IT (1) IT1009231B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029519A (en) * 1978-09-06 1980-03-19 Vauxhall Motors Ltd Transmission and synchronizer
GB2166206A (en) * 1984-10-11 1986-04-30 Volvo Ab Gearbox synchronizer
EP1688633A1 (en) * 2005-02-08 2006-08-09 Renault s.a.s. Synchroniser device with wear control adjustment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096911B1 (en) * 1982-06-01 1987-03-25 J.I. Case Europe Limited Stepped ratio-change gearbox

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029519A (en) * 1978-09-06 1980-03-19 Vauxhall Motors Ltd Transmission and synchronizer
GB2029519B (en) * 1978-09-06 1982-09-29 Vauxhall Motors Ltd Transmission synchronizer
GB2166206A (en) * 1984-10-11 1986-04-30 Volvo Ab Gearbox synchronizer
US4712662A (en) * 1984-10-11 1987-12-15 Ab Volvo Gearbox synchronizer
EP1688633A1 (en) * 2005-02-08 2006-08-09 Renault s.a.s. Synchroniser device with wear control adjustment
FR2881805A1 (en) * 2005-02-08 2006-08-11 Renault Sas SYNCHRONIZATION DEVICE WITH RETRIEVAL OF WEAR GUARD

Also Published As

Publication number Publication date
FR2263427A1 (en) 1975-10-03
IT1009231B (en) 1976-12-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee