US2962914A - Gear-shift forks of gearboxes - Google Patents

Gear-shift forks of gearboxes Download PDF

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Publication number
US2962914A
US2962914A US812557A US81255759A US2962914A US 2962914 A US2962914 A US 2962914A US 812557 A US812557 A US 812557A US 81255759 A US81255759 A US 81255759A US 2962914 A US2962914 A US 2962914A
Authority
US
United States
Prior art keywords
gear
forks
rod
fork
gearboxes
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 - Lifetime
Application number
US812557A
Other languages
English (en)
Inventor
Peras Lucien
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Application granted granted Critical
Publication of US2962914A publication Critical patent/US2962914A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • 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
    • F16H63/34—Locking or disabling mechanisms
    • F16H63/36—Interlocking devices
    • 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
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • F16H2063/321—Gear shift yokes, e.g. shift forks characterised by the interface between fork body and shift rod, e.g. fixing means, bushes, cams or pins
    • 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
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • F16H2063/327—Gear shift yokes, e.g. shift forks essentially made of sheet metal
    • 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
    • F16H63/38—Detents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements
    • Y10T74/20018—Transmission control
    • Y10T74/20085—Restriction of shift, gear selection, or gear engagement
    • Y10T74/20104—Shift element interlock
    • Y10T74/20116—Resiliently biased interlock
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements
    • Y10T74/20018—Transmission control
    • Y10T74/20177—Particular element [e.g., shift fork, template, etc.]
    • Y10T74/20183—Shift fork structure

Definitions

  • the two forks are of the type sliding on a fixed rod and consist of pressed and bent sheet-metal elements so as to form notably, in addition to the fork-shaped side controlling the sliding gear corresponding to each of them and when observing said forks in plane view, two opposed and interengaging U portions slidably mounted by their outer arms on said fixed rod, the inner arms of these U portions being formed with corresponding pressed registering detent-positioning notches adapted to co-act with a single locking and safety device carried by the same rod.
  • Figure 1 shows in elevational view taken in a direction at right angles to the guide rod two forks mounted thereon;
  • Figure 2 is a plane view from above showing the arrangement of Fig. 1, and
  • Figure 3 is a cross-sectional view taken upon the line III-III of Fig. 1.
  • the reference numerals 1 and 2 designate two forks of pressed and bent sheet metal which are mounted according to this invention on a fixed rod 3.
  • these two forks constitute two opposed interengaging U portions mounted for sliding movement on the rod 3 by means of the outer arms partially surrounding this rod and designated by the reference numerals 4 and 5, respectively.
  • the central or inner arms of these U portions are each formed with three registering pressed detent-positioning notches 6 adapted to co-act with a single locking and safety device 7 carried by the rod.
  • Each fork is formed with an opposite gear-engaging forked portion 8, 9 adapted to co-act with the corresponding sliding gear or like member of the gearbox.
  • These gear-engaging forks are conveniently co-extensive with one arm of the U, the proper disposition being subordinate, as a matter of fact, to the position of the sliding gears or like members in the gearbox.
  • central or inner arms of the aforesaid interengaging U-shaped portions are formed at their top with notched and bent registering extensions providing together an aperture 10 adapted to receive the driving end of a fork-actuating control lever (not shown).
  • the locking and safety device 7 consists simply of a pair of opposite springloaded bolts 11 slidably mounted in a guide sleeve 12 fitted in a transverse bore of the rod 3, these bolts being urged against the detent positioning notches 6 by a common central compression spring 13.
  • the forks are also maintained in their proper relative positions about the rod 3 by the engagement of their fork-shaped portions 8 with the relevant sliding gear or like member.
  • a gearbox fork arrangement for controlling two sliding gears comprising a stationary rod, a pair of forks mounted to slide axially on the rod and having gear engaging projecting portions, said forks being formed from pressed and bent sheet metal and including opposed interengaging U-shaped portions, each portion having outer arms slidably mounted on the rod and inner arms having inner opposing faces formed with corresponding pressed, registering detent-positioning notches and a single locking and safety device carried by the rod with which the notches coact.
  • a gearbox fork arrangement as defined in claim 1, wherein said locking and safety device consists of a pair of opposed spring-loaded bolts slidably mounted in said rod and extending radially therefrom and urged for engagement with the detent-positioning notches by a common spring interposed between said bolts, the axial dimensions of said bolts being such that their combined length exceeds that affording the simultaneous clearing by these bolts of the opposite ridges that separate the adjacent detent-positioning notches.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)
US812557A 1958-05-10 1959-05-11 Gear-shift forks of gearboxes Expired - Lifetime US2962914A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1196085T 1958-05-10
FR765288 1958-05-10

Publications (1)

Publication Number Publication Date
US2962914A true US2962914A (en) 1960-12-06

Family

ID=37728573

Family Applications (1)

Application Number Title Priority Date Filing Date
US812557A Expired - Lifetime US2962914A (en) 1958-05-10 1959-05-11 Gear-shift forks of gearboxes

Country Status (5)

Country Link
US (1) US2962914A (fr)
DE (1) DE1125730B (fr)
FR (1) FR1196085A (fr)
GB (1) GB866860A (fr)
NL (1) NL239031A (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1650820B1 (de) * 1966-09-30 1972-01-13 Peugeot Schaltvorrichtung fuer zwei schaltgabeln zum eingriff mit zwei schiebemuffen eines wechselgetriebes
FR2507354A1 (fr) * 1981-06-09 1982-12-10 Valeo Fourchette de commande pour butee de debrayage, son procede de montage, dispositif de debrayage la comportant, et butee de debrayage correspondante
JPS59157162U (ja) * 1983-04-08 1984-10-22 株式会社　神崎高級工機製作所 変速操作装置
US20050166698A1 (en) * 2001-04-20 2005-08-04 Andrew Fanning Single-shaft switching device
US20070209466A1 (en) * 2006-03-06 2007-09-13 Crf Societa Consortile Per Azioni Gear shift fork for a gearbox with discrete gear ratios
US20080134825A1 (en) * 2006-12-11 2008-06-12 C.R.F. Societa' Consortile Per Azioni Discrete-ratio gearbox for motor vehicle
US20090107279A1 (en) * 2007-10-24 2009-04-30 C.R.F. Societa' Consortile Per Azioni Motor vehicle gearbox
US20090151496A1 (en) * 2007-12-18 2009-06-18 C.R.F. Societa' Consortile Per Azioni Motor-vehicle gearbox
CN101639122A (zh) * 2008-08-02 2010-02-03 谢夫勒两合公司 带补偿公差的滑座的换挡拨叉
US20120247255A1 (en) * 2009-12-09 2012-10-04 Zf Friedrichshafen Ag Mono-rail shifting device
US20150252898A1 (en) * 2014-03-04 2015-09-10 Deere & Company Shift interlock for a transmission
CN105156667A (zh) * 2015-10-14 2015-12-16 无锡市永亿精密铸造有限公司 带套入平衡滚珠拉力弹簧的拨叉
CN105333138A (zh) * 2014-07-24 2016-02-17 约翰迪尔（天津）有限公司 一种拨叉机构以及具有该拨叉机构的变速箱和拖拉机
US20190242476A1 (en) * 2018-02-06 2019-08-08 Arvinmeritor Technology, Llc Shift Fork and Method of Manufacture
CN115435081A (zh) * 2022-08-26 2022-12-06 西安法士特汽车传动有限公司 一种变速器换挡拨叉总成和具有其的车辆

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1190573B (it) * 1986-05-27 1988-02-16 Fiat Auto Spa Cambio di velocita a cinque rapporti e retromarcia pe autoveicoli
DE10124201A1 (de) * 2001-05-17 2002-11-21 Ina Schaeffler Kg Schaltvorrichtung eines Schaltgetriebes
DE10128318A1 (de) * 2001-06-01 2002-12-19 Gif Gmbh Schaltgetriebe
DE10342133A1 (de) * 2003-09-12 2005-04-07 Ina-Schaeffler Kg Rastvorrichtung
EP1626209B1 (fr) * 2004-08-09 2012-10-10 Getrag Ford Transmissions GmbH Commande interne des boîtes de vitesses avec dispositif de billage et de verrouillage
DE102005023245A1 (de) * 2005-05-20 2006-12-14 Zf Friedrichshafen Ag Vorrichtung zur aufhebbaren Verriegelung einer Schaltvorrichtung für ein Getriebe
DE102005024611B4 (de) * 2005-05-25 2018-02-01 Schaeffler Technologies AG & Co. KG Schaltelement
DE102006057462A1 (de) * 2006-12-06 2008-06-12 Schaeffler Kg Schaltvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1309852A (en) * 1919-07-15 jembszt
US1377331A (en) * 1918-07-10 1921-05-10 Ford Henry Gear-shift-locking device
US2168592A (en) * 1938-02-07 1939-08-08 Vanderveld Anthony Gear shifting mechanism

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735528A (en) * 1956-02-21 dodge
US1337654A (en) * 1919-06-25 1920-04-20 George C Jensen Lock, retainer, and interlock for shifter devices
GB211083A (en) * 1922-12-16 1924-02-14 William Clifford Stevens Improvements in or relating to gear shifting mechanism
US1821890A (en) * 1930-08-09 1931-09-01 Warner Gear Co Shifter mechanism
US2153085A (en) * 1938-07-15 1939-04-04 Gen Motors Corp Transmission interlock
DE826547C (de) * 1950-06-02 1952-01-03 Opel Adam Ag Schalt- und Verriegelungsvorrichtung fuer Zahnraederwechselgetriebe von Kraftfahrzeugen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1309852A (en) * 1919-07-15 jembszt
US1377331A (en) * 1918-07-10 1921-05-10 Ford Henry Gear-shift-locking device
US2168592A (en) * 1938-02-07 1939-08-08 Vanderveld Anthony Gear shifting mechanism

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1650820B1 (de) * 1966-09-30 1972-01-13 Peugeot Schaltvorrichtung fuer zwei schaltgabeln zum eingriff mit zwei schiebemuffen eines wechselgetriebes
FR2507354A1 (fr) * 1981-06-09 1982-12-10 Valeo Fourchette de commande pour butee de debrayage, son procede de montage, dispositif de debrayage la comportant, et butee de debrayage correspondante
US4560052A (en) * 1981-06-09 1985-12-24 Valeo Clutch release device
JPS59157162U (ja) * 1983-04-08 1984-10-22 株式会社　神崎高級工機製作所 変速操作装置
JPS6233160Y2 (fr) * 1983-04-08 1987-08-25
US7162934B2 (en) * 2001-04-20 2007-01-16 Zf Friedrichshafen Ag Single-shaft switching device
CN100347470C (zh) * 2001-04-20 2007-11-07 腓特烈斯港齿轮工厂股份公司 单轴换档装置
US20050166698A1 (en) * 2001-04-20 2005-08-04 Andrew Fanning Single-shaft switching device
US20070209466A1 (en) * 2006-03-06 2007-09-13 Crf Societa Consortile Per Azioni Gear shift fork for a gearbox with discrete gear ratios
US20080134825A1 (en) * 2006-12-11 2008-06-12 C.R.F. Societa' Consortile Per Azioni Discrete-ratio gearbox for motor vehicle
US8037780B2 (en) * 2006-12-11 2011-10-18 C.R.F. Societa Consortile Per Azioni Discrete-ratio gearbox for motor vehicle
US20090107279A1 (en) * 2007-10-24 2009-04-30 C.R.F. Societa' Consortile Per Azioni Motor vehicle gearbox
US8413537B2 (en) * 2007-10-24 2013-04-09 C.R.F. Societa Consortile Per Azioni Motor vehicle gearbox
US8397598B2 (en) * 2007-12-18 2013-03-19 C.R.F. Societa Consortile Per Azioni Motor-vehicle gearbox
US20090151496A1 (en) * 2007-12-18 2009-06-18 C.R.F. Societa' Consortile Per Azioni Motor-vehicle gearbox
CN101639122A (zh) * 2008-08-02 2010-02-03 谢夫勒两合公司 带补偿公差的滑座的换挡拨叉
CN101639122B (zh) * 2008-08-02 2015-05-06 谢夫勒科技股份两合公司 带补偿公差的滑座的换挡拨叉
US20120247255A1 (en) * 2009-12-09 2012-10-04 Zf Friedrichshafen Ag Mono-rail shifting device
US20150252898A1 (en) * 2014-03-04 2015-09-10 Deere & Company Shift interlock for a transmission
US9291262B2 (en) * 2014-03-04 2016-03-22 Deere & Company Shift interlock for a transmission
CN105333138A (zh) * 2014-07-24 2016-02-17 约翰迪尔（天津）有限公司 一种拨叉机构以及具有该拨叉机构的变速箱和拖拉机
CN105333138B (zh) * 2014-07-24 2018-05-25 约翰迪尔（天津）有限公司 一种拨叉机构以及具有该拨叉机构的变速箱和拖拉机
CN105156667A (zh) * 2015-10-14 2015-12-16 无锡市永亿精密铸造有限公司 带套入平衡滚珠拉力弹簧的拨叉
US20190242476A1 (en) * 2018-02-06 2019-08-08 Arvinmeritor Technology, Llc Shift Fork and Method of Manufacture
US10738887B2 (en) * 2018-02-06 2020-08-11 Arvinmeritor Technology, Llc Shift fork and method of manufacture
CN115435081A (zh) * 2022-08-26 2022-12-06 西安法士特汽车传动有限公司 一种变速器换挡拨叉总成和具有其的车辆
CN115435081B (zh) * 2022-08-26 2023-09-08 西安法士特汽车传动有限公司 一种变速器换挡拨叉总成和具有其的车辆

Also Published As

Publication number Publication date
DE1125730B (de) 1962-03-15
FR1196085A (fr) 1959-11-20
NL239031A (fr)
GB866860A (en) 1961-05-03

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