GB1502346A - Synchronising device for change-speed gearboxes - Google Patents

Synchronising device for change-speed gearboxes

Info

Publication number
GB1502346A
GB1502346A GB17238/75A GB1723875A GB1502346A GB 1502346 A GB1502346 A GB 1502346A GB 17238/75 A GB17238/75 A GB 17238/75A GB 1723875 A GB1723875 A GB 1723875A GB 1502346 A GB1502346 A GB 1502346A
Authority
GB
United Kingdom
Prior art keywords
sleeve
clutch
teeth
ring
spring tongues
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
GB17238/75A
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
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of GB1502346A publication Critical patent/GB1502346A/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
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/78—Special adaptation of synchronisation mechanisms to these gearings
    • 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

Landscapes

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

Abstract

1502346 Positive clutches; clutch-brake combinations; change speed gears ZAHNRADFABRIK FRIEDRICHSHAFEN AG 25 April 1975 [26 April 1974] 17238/75 Headings F2C F2D and F2L In a friction synchronized positive clutch or brake (Fig. 7, not shown) for a change speed gear wherein axial engaging movement of a two-part sleeve 4, 11 is baulked until synchronism occurs by teeth on the sleeve 11 abutting teeth on a synchronizing ring 5, the initial axial movement of the sleeve 4, 11 is transmitted to the synchronizing ring 5 by radially resilient axially extending spring tongues 10 fast with a rim 6 riveted to the sleeve 11 (or synchronizing ring 5) and engaging a groove 21 in the synchronizing ring 5 (or sleeve 11). As shown in a double positive clutch for selectively connecting gears 1, 2 to a shaft 3, a pair of rims 6 having spring tongues 10 are riveted to the clutch sleeve 11. The spring tongues 10 engage, with lost motion, between radial projections (7, 8) of the synchronizing ring 5 so that when the latter frictionally engages the gear 1 or 2 the ring 5 rotates relative to the sleeve 11 to a position in which its teeth prevent further axial movement of the inner part 4 of the clutch sleeve. When synchronism is attained bevelled ends of the clutch teeth on the sleeve 4 return the synchronizing ring 5 to a position in which the clutch teeth on the sleeve 4 can pass through the teeth on the ring 5 into engagement with teeth on the gear 1 or 2. During the further clutch engaging movement of the clutch sleeve 4, 11, the spring tongues 10 ride out of the grooves 21. In Figs. 4-6 (not shown) the spring tongues press radially outwardly into internal grooves of the synchronizing rings. In Fig. 7 (not shown) the spring tongue rims (76) are riveted to the synchronizing rings (75) and the spring tongues (70) are biased radially outwardly into engagement with grooves (77) in an axially slidable sleeve (71). The sleeve (71) additionally forms the ring gear of a sun-ring planet train and movement of the sleeve (71) in one direction engages a clutch connecting the sleeve (71) to an output planet carrier (72) for direct drive, whilst movement of the sleeve (71) in the opposite direction engages a positive brake which holds the sleeve (71) for reduced ratio.
GB17238/75A 1974-04-26 1975-04-25 Synchronising device for change-speed gearboxes Expired GB1502346A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2420206A DE2420206C3 (en) 1974-04-26 1974-04-26 Synchronizing device for gear shifting device

Publications (1)

Publication Number Publication Date
GB1502346A true GB1502346A (en) 1978-03-01

Family

ID=5914007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17238/75A Expired GB1502346A (en) 1974-04-26 1975-04-25 Synchronising device for change-speed gearboxes

Country Status (7)

Country Link
DE (1) DE2420206C3 (en)
FR (1) FR2268986B1 (en)
GB (1) GB1502346A (en)
IT (1) IT1035474B (en)
PL (1) PL97232B1 (en)
SE (2) SE413543B (en)
YU (1) YU36557B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144962A2 (en) * 1983-12-05 1985-06-19 Toyota Jidosha Kabushiki Kaisha Gear synchronizer assembly for power transmission
US4625844A (en) * 1983-12-05 1986-12-02 Toyota Jidosha Kabushiki Kaisha Gear synchronizer assembly for power transmission
US4674614A (en) * 1984-11-02 1987-06-23 Toyota Jidosha Kabushiki Kaisha Gear synchronizer assembly for power transmission
US5782331A (en) * 1993-07-23 1998-07-21 Zf Friedrichshafen Ag Lock-synchronisied gearbox shift system
EP0955481A2 (en) * 1998-05-08 1999-11-10 INA Wälzlager Schaeffler oHG Shift sleeve of a synchronizer assembly for a gearbox
GB2357126A (en) * 1999-12-08 2001-06-13 Eaton Corp Synchronizer with force limiter which prevents damage
US6467598B2 (en) 1999-12-08 2002-10-22 Eaton Corporation Synchronizer
FR2851022A1 (en) * 2003-02-07 2004-08-13 Peugeot Citroen Automobiles Sa Mechanical transmission synchronization device for motor vehicle, has tapered ring interposed between jaw clutching coupling sleeve and transmission gearwheel, and linked in rotation with sleeve by imitation
CN109690109A (en) * 2016-09-07 2019-04-26 舍弗勒技术股份两合公司 Shifting device for synchronization in a transmission

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1262102A (en) * 1984-06-14 1989-10-03 Sadanori Nishimura Inertia lock type synchronous clutch mechanism
JPH0539215Y2 (en) * 1985-02-26 1993-10-05
SE463477B (en) * 1989-10-19 1990-11-26 Saab Scania Ab SYNCHRONIZING DEVICE ON A PLANET SWITCH
US5531305A (en) * 1993-11-05 1996-07-02 Borg-Warner Automotive, Inc. Synchronizer clutch assembly for multiple ratio gearing
FR2750184B1 (en) * 1996-06-20 1998-07-24 Peugeot COMPACT SYNCHRONIZER FOR GEARBOX, ESPECIALLY A MOTOR VEHICLE
JP2003042183A (en) * 2001-07-31 2003-02-13 Honda Motor Co Ltd Regularly engaging speed change gear
DE102007055719A1 (en) * 2007-12-06 2009-06-10 Zf Friedrichshafen Ag Synchronization arrangement for a manual transmission in countershaft design
DE102010020199A1 (en) * 2010-05-12 2011-11-17 Neumayer Tekfor Holding Gmbh Synchronization device for shift gearbox, has gear wheel, synchronizing body, synchronizing ring, friction surface between gear wheel and synchronizing ring and shift sleeve
DE102010036277B4 (en) * 2010-09-03 2013-05-08 Hoerbiger Antriebstechnik Holding Gmbh Coupling body for a gear wheel of a manual transmission and gear wheel with coupling body
AT511147A1 (en) * 2011-02-17 2012-09-15 Avl List Gmbh TRANSMISSION WITH AT LEAST ONE SHAFT
EP3800514B1 (en) * 2019-10-04 2024-01-17 Comadur S.A. Spring ring of a snap fitting of a rotating bezel

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144962A2 (en) * 1983-12-05 1985-06-19 Toyota Jidosha Kabushiki Kaisha Gear synchronizer assembly for power transmission
EP0144962A3 (en) * 1983-12-05 1985-07-17 Toyota Jidosha Kabushiki Kaisha Gear synchronizer assembly for power transmission
US4625844A (en) * 1983-12-05 1986-12-02 Toyota Jidosha Kabushiki Kaisha Gear synchronizer assembly for power transmission
US4674614A (en) * 1984-11-02 1987-06-23 Toyota Jidosha Kabushiki Kaisha Gear synchronizer assembly for power transmission
US5782331A (en) * 1993-07-23 1998-07-21 Zf Friedrichshafen Ag Lock-synchronisied gearbox shift system
EP0955481A2 (en) * 1998-05-08 1999-11-10 INA Wälzlager Schaeffler oHG Shift sleeve of a synchronizer assembly for a gearbox
EP0955481A3 (en) * 1998-05-08 2001-09-05 INA Wälzlager Schaeffler oHG Shift sleeve of a synchronizer assembly for a gearbox
GB2357126A (en) * 1999-12-08 2001-06-13 Eaton Corp Synchronizer with force limiter which prevents damage
US6467598B2 (en) 1999-12-08 2002-10-22 Eaton Corporation Synchronizer
FR2851022A1 (en) * 2003-02-07 2004-08-13 Peugeot Citroen Automobiles Sa Mechanical transmission synchronization device for motor vehicle, has tapered ring interposed between jaw clutching coupling sleeve and transmission gearwheel, and linked in rotation with sleeve by imitation
EP1447581A1 (en) * 2003-02-07 2004-08-18 Peugeot Citroen Automobiles S.A. Synchronizer device for a mechanical gearbox.
CN109690109A (en) * 2016-09-07 2019-04-26 舍弗勒技术股份两合公司 Shifting device for synchronization in a transmission

Also Published As

Publication number Publication date
DE2420206A1 (en) 1975-11-13
FR2268986B1 (en) 1980-09-12
SE413543B (en) 1980-06-02
IT1035474B (en) 1979-10-20
SE7504830L (en) 1975-10-27
DE2420206B2 (en) 1979-08-30
YU93175A (en) 1982-02-25
DE2420206C3 (en) 1980-05-14
YU36557B (en) 1984-02-29
FR2268986A1 (en) 1975-11-21
PL97232B1 (en) 1978-02-28
SE7807692L (en) 1978-07-10

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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