GB1335865A - Device for synchronizing dog clutches - Google Patents

Device for synchronizing dog clutches

Info

Publication number
GB1335865A
GB1335865A GB2874271A GB2874271A GB1335865A GB 1335865 A GB1335865 A GB 1335865A GB 2874271 A GB2874271 A GB 2874271A GB 2874271 A GB2874271 A GB 2874271A GB 1335865 A GB1335865 A GB 1335865A
Authority
GB
United Kingdom
Prior art keywords
clutch
sleeve
gear
synchronizing
ball
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
GB2874271A
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.)
Tatra np
Original Assignee
Tatra np
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 Tatra np filed Critical Tatra np
Publication of GB1335865A publication Critical patent/GB1335865A/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
    • 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

Landscapes

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

Abstract

1335865 Positive clutches TATRA NARODNI PODNIK 18 June 1971 [22 June 1970] 28742/71 Heading F2C A baulked, friction synchronized positive clutch for a change speed gear has means to disengage synchronizing rings 5, 6 from cooperating friction surfaces on gears 20, 19 in both the clutch engaged and disengaged conditions. The synchronizing rings 5, 6 on opposite sides of a hub 7 are respectively connected to alternate thrust members 1 by projections 2 on the thrust members engaging grooves 3, 4 in the synchronizing rings. The thrust members 1 have radial bores 8 housing spring pressed balls 10 engageable with recesses 11, 12, 13 in an axially slidable clutch sleeve 14. The bores 8 are axially offset by a distance A from bores 21 in the hub 7 which house the other ends of the springs 9. The bores 8 in alternate thrust member 1 are axially offset in opposite direction. The recesses 11, 12, 13 in the sleeve 14 adjacent alternate thrust members are a mirror image of the recesses shown. Operation.-Initial rightward axial movement of the clutch sleeve 14 acts through the ball 10 and thrust member 1 to move the synchronizing ring 5 into engagement with the friction surface on the gear 20. Further movement of the sleeve 14 is baulked until synchronism is obtained. On synchronism the sleeve 14 completes its rightward movement for clutch engagement and the ball 10 moves into the recess 13. The inclined portion of the recess 13 acts through the ball 10 and thrust member 1 to move the synchronizing ring 5 out of frictional engagement with a gear 20 whilst the clutch is engaged. During clutch disengagement the synchronizing ring 5 remains out of frictional engagement with a gear 20. During leftward movement of the clutch sleeve 14 the alternate thrust members 1 provide a similar action to the above on the synchronizing ring 6. When the clutch sleeve 14 is engaged with the gear 19 the inclined portion of the recess 12 acts through the ball 10 and thrust member 1 to hold the synchronizing ring 5 out of engagement with the gear 20.
GB2874271A 1970-06-22 1971-06-18 Device for synchronizing dog clutches Expired GB1335865A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS434770A CS151650B1 (en) 1970-06-22 1970-06-22

Publications (1)

Publication Number Publication Date
GB1335865A true GB1335865A (en) 1973-10-31

Family

ID=5385996

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2874271A Expired GB1335865A (en) 1970-06-22 1971-06-18 Device for synchronizing dog clutches

Country Status (6)

Country Link
CH (1) CH549738A (en)
CS (1) CS151650B1 (en)
DE (1) DE2127395C3 (en)
FR (1) FR2099287A5 (en)
GB (1) GB1335865A (en)
HU (1) HU162679B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2163778A2 (en) 2008-09-11 2010-03-17 Oberlikon Graziano S.p.A. Synchronizer for vehicule transmissions with pre-synchronizing device having spring-loaded balls.
CN105556151A (en) * 2013-09-02 2016-05-04 贺尔碧格传动技术控股有限公司 Synchronization system and method for changing a gear

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404093C2 (en) * 1994-02-09 1996-08-14 Porsche Ag Device for switching a transmission via a synchronization device
DE19834544A1 (en) * 1998-07-31 2000-02-03 Bayerische Motoren Werke Ag Synchronizer for a vehicle transmission
DE102005028803A1 (en) * 2005-06-22 2007-01-04 GM Global Technology Operations, Inc., Detroit Synchronization device for a manual transmission
DE102010015471A1 (en) * 2010-04-16 2011-10-20 Getrag Ford Transmissions Gmbh Synchronous unit for a manual transmission

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2163778A2 (en) 2008-09-11 2010-03-17 Oberlikon Graziano S.p.A. Synchronizer for vehicule transmissions with pre-synchronizing device having spring-loaded balls.
CN105556151A (en) * 2013-09-02 2016-05-04 贺尔碧格传动技术控股有限公司 Synchronization system and method for changing a gear
US10247257B2 (en) 2013-09-02 2019-04-02 Hoerbiger Antriebstechnik Holding Gmbh Synchronizer and method for shifting a gear
US10400831B2 (en) 2013-09-02 2019-09-03 Hoerbiger Antriebstechnik Holding Gmbh Synchronizer and method for shifting a gear

Also Published As

Publication number Publication date
HU162679B (en) 1973-03-28
DE2127395C3 (en) 1973-11-08
DE2127395B2 (en) 1973-04-26
CH549738A (en) 1974-05-31
FR2099287A5 (en) 1972-03-10
CS151650B1 (en) 1973-11-19
DE2127395A1 (en) 1971-12-30

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Legal Events

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