GB1502914A - Synchronising devices for shift clutches or brakes of gearboxes - Google Patents

Synchronising devices for shift clutches or brakes of gearboxes

Info

Publication number
GB1502914A
GB1502914A GB27269/75A GB2726975A GB1502914A GB 1502914 A GB1502914 A GB 1502914A GB 27269/75 A GB27269/75 A GB 27269/75A GB 2726975 A GB2726975 A GB 2726975A GB 1502914 A GB1502914 A GB 1502914A
Authority
GB
United Kingdom
Prior art keywords
hub
lever
synchronizing rings
recesses
positive
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
GB27269/75A
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
Priority claimed from DE19742431324 external-priority patent/DE2431324C2/en
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of GB1502914A publication Critical patent/GB1502914A/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
    • F16D2023/0631—Sliding sleeves; Details thereof
    • 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
    • F16D2023/0637—Details relating to the hub member on which the sliding is arranged

Landscapes

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

Abstract

1502914 Positive clutches; positive detents ZAHNRADFABRIK FRIEDRICHSHAFEN AG 27 June 1975 [29 June 1974] 27269/75 Headings F2C and F2E In a baulk ring synchronized positive clutch or brake for a change speed gear wherein an internally toothed sleeve 12 is axially slidable on a hub 11 into engagement with teeth 15, 16 carried by gears 17, 18 or the gear-box housing and coned friction synchronizing rings 13, 14 have limited circumferential movement relative to the hub 11 and are engageable with coned friction surfaces fast with the gears 17, 18 or housing, levers 20 pivoted on the hub 11 and engaging recesses 24 in the synchronizing rings 13, 14 ensure equal and opposite rotations of the synchronizing rings and thus prevent undesirable oscillations of the latter. As shown pivotal movement of the lever 20 is permitted by convex surfaces on the lever engaging recesses 19 in the hub 11. The ends of the lever 20 are also provided with convex surfaces 25 which engage the recesses in the synchronizing rings 13, 14. Alternatively the lever may have spherical sections at its centre and ends which engage cylindrical and part-spherical recesses in the hub and synchronizing rings respectively. In a further modification the lever is connected to the hub by pivot pins and the ends of the levers are bifurcate and co-operate with projections on the synchronizing rings.
GB27269/75A 1974-06-29 1975-06-27 Synchronising devices for shift clutches or brakes of gearboxes Expired GB1502914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742431324 DE2431324C2 (en) 1974-06-29 Synchronizer

Publications (1)

Publication Number Publication Date
GB1502914A true GB1502914A (en) 1978-03-08

Family

ID=5919296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27269/75A Expired GB1502914A (en) 1974-06-29 1975-06-27 Synchronising devices for shift clutches or brakes of gearboxes

Country Status (5)

Country Link
FR (1) FR2276505A1 (en)
GB (1) GB1502914A (en)
IT (1) IT1040600B (en)
PL (1) PL94278B1 (en)
SE (1) SE398262B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8104597B2 (en) 2006-09-18 2012-01-31 Hofer-Pdc Gmbh Transmission synchronizing system, in particular, in the form of a servo synchronizing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8104597B2 (en) 2006-09-18 2012-01-31 Hofer-Pdc Gmbh Transmission synchronizing system, in particular, in the form of a servo synchronizing system

Also Published As

Publication number Publication date
PL94278B1 (en) 1977-07-30
SE398262B (en) 1977-12-12
SE7507425L (en) 1975-12-30
IT1040600B (en) 1979-12-20
DE2431324B1 (en) 1975-08-14
FR2276505A1 (en) 1976-01-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee