GB1418764A - Transmission - Google Patents

Transmission

Info

Publication number
GB1418764A
GB1418764A GB349273A GB349273A GB1418764A GB 1418764 A GB1418764 A GB 1418764A GB 349273 A GB349273 A GB 349273A GB 349273 A GB349273 A GB 349273A GB 1418764 A GB1418764 A GB 1418764A
Authority
GB
United Kingdom
Prior art keywords
shaft
reverse
lever
spring
ratio
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
GB349273A
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of GB1418764A publication Critical patent/GB1418764A/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
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/04—Ratio selector apparatus
    • F16H59/042—Ratio selector apparatus comprising a final actuating mechanism
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
    • 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
    • F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
    • F16H63/20—Multiple final output mechanisms being moved by a single common final actuating mechanism with preselection and subsequent movement of each final output mechanism by movement of the final actuating mechanism in two different ways, e.g. guided by a shift gate
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
    • F16H2061/185—Means, e.g. catches or interlocks, for preventing unintended shift into reverse gear
    • 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
    • F16H2063/3086—Shift head arrangements, e.g. forms or arrangements of shift heads for preselection or shifting
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/24—Providing feel, e.g. to enable selection
    • 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
    • F16H63/3408—Locking or disabling mechanisms the locking mechanism being moved by the final actuating mechanism

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Control Of Transmission Device (AREA)

Abstract

1418764 Change-speed control TOYOTA JIDOSHA KOGYO KK 23 Jan 1973 [24 Jan 1972] 3492/73 Heading F2D In a transmission having a first fork shaft for engaging forward ratios and a second fork shaft for engaging a further forward ratio and reverse, a selector engageable with recesses in the fork shafts has biasing means defining non-aligned first and second travel paths through which it is moved for actuating the second fork shaft, and restricting means are provided whereby when the selector is positioned in the first travel path it can be moved only between positions establishing the forward ratio and neutral, reverse being selectable only after further transverse movement of the selector against the biasing means to the second travel path. In one embodiment a selector lever 2, held in a spherical socket 4 by a spring 7, is selectively engageable with recesses 12, 13, 14 in the ends of fork shafts 9, 10, 11 which have interlocking means 15, 16. First and second ratios are established by the shaft 9, third and fourth by the shaft 10, and fifth and reverse by the shaft 11. The lever coacts with a plate 21 supported at one end by a set-bolt 22 and slidable at the other end on a shaft 23 so that when the lever is moved towards the recess 14 it encounters resistance as a spring-loaded ball 28 rides up a ramp 25<SP>1</SP>a. When a further ramp 25<SP>11</SP>a engages the ball the lever is positioned so that it engages portions 13b, 14b of the recesses 13, 14 and cannot therefore move the shaft 11 to the left to establish reverse ratio but is enabled to move the shaft 11 to the right to establish fifth ratio by engagement with a portion 14a of the recess 14. Reverse is engageable only after further movement of the lever 2 to overcome the additional resistance provided by the ramp 25<SP>11</SP>a. A modification has a spring-loaded plunger in the recess 14 instead of the plate 21 and ball 28. In a further modification the fork shafts are operated by an arm on the end of an intermediate shaft the other end of which is connected to the selector lever and spring-biased to the third and fourth ratio position, and a spring-loaded plunger in the recess of the fifth and reverse fork shaft, or in the casing, coacts with a cam on the arm to provide the resistance to reverse ratio selection. When the plunger is in the casing it may operate a reversing light switch.
GB349273A 1972-01-24 1973-01-23 Transmission Expired GB1418764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP829472A JPS521458B2 (en) 1972-01-24 1972-01-24

Publications (1)

Publication Number Publication Date
GB1418764A true GB1418764A (en) 1975-12-24

Family

ID=11689133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB349273A Expired GB1418764A (en) 1972-01-24 1973-01-23 Transmission

Country Status (3)

Country Link
JP (1) JPS521458B2 (en)
FR (1) FR2169625A5 (en)
GB (1) GB1418764A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949354A1 (en) * 1978-12-12 1980-06-19 Honda Motor Co Ltd DEVICE FOR PREVENTING SWITCHING ERRORS IN MANUAL GEARBOXES FOR VEHICLES
DE3003074A1 (en) * 1979-01-30 1980-08-21 Nissan Motor CONTROL DEVICE FOR VEHICLE TRANSMISSION
DE3117038A1 (en) * 1981-02-17 1982-08-26 Toyota Jidosha Kogyo K.K., Toyota, Aichi SYNCHRONIZING DEVICE FOR A GEARBOX
EP0247976A1 (en) * 1986-05-27 1987-12-02 FIAT AUTO S.p.A. Motor vehicle gearbox
ES2116830A1 (en) * 1994-04-13 1998-07-16 Daumal Castellon Melchor Governor mechanism for a manual gearbox
EP2000707A3 (en) * 2007-06-07 2009-11-25 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Transmission
EP2738429A4 (en) * 2011-07-27 2015-12-02 Toyota Motor Co Ltd Vehicle manual transmission
CN105202174A (en) * 2015-11-02 2015-12-30 重庆御捷汽车部件有限公司 Vehicle manual gear shifter with gap-adjustable joint bearing

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6039907B2 (en) * 1979-12-29 1985-09-07 本田技研工業株式会社 Misoperation prevention device for vehicle transmissions
DE3601954A1 (en) * 1986-01-23 1987-07-30 Ford Werke Ag SWITCH LOCK FOR REVERSE GEAR OF A MULTI-SPEED CHANGEOVER GEARBOX
US5038632A (en) * 1989-12-19 1991-08-13 Dana Corporation Transmission shift lever biasing assembly
CN111649127A (en) * 2020-05-28 2020-09-11 宝鸡法士特齿轮有限责任公司 Locking device and locking method for overdrive and reverse gear

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949354A1 (en) * 1978-12-12 1980-06-19 Honda Motor Co Ltd DEVICE FOR PREVENTING SWITCHING ERRORS IN MANUAL GEARBOXES FOR VEHICLES
DE3003074A1 (en) * 1979-01-30 1980-08-21 Nissan Motor CONTROL DEVICE FOR VEHICLE TRANSMISSION
DE3117038A1 (en) * 1981-02-17 1982-08-26 Toyota Jidosha Kogyo K.K., Toyota, Aichi SYNCHRONIZING DEVICE FOR A GEARBOX
EP0247976A1 (en) * 1986-05-27 1987-12-02 FIAT AUTO S.p.A. Motor vehicle gearbox
ES2116830A1 (en) * 1994-04-13 1998-07-16 Daumal Castellon Melchor Governor mechanism for a manual gearbox
EP2000707A3 (en) * 2007-06-07 2009-11-25 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Transmission
CN101319720B (en) * 2007-06-07 2012-07-11 三菱自动车工业株式会社 Transmission
EP2738429A4 (en) * 2011-07-27 2015-12-02 Toyota Motor Co Ltd Vehicle manual transmission
CN105202174A (en) * 2015-11-02 2015-12-30 重庆御捷汽车部件有限公司 Vehicle manual gear shifter with gap-adjustable joint bearing

Also Published As

Publication number Publication date
FR2169625A5 (en) 1973-09-07
JPS4877527A (en) 1973-10-18
JPS521458B2 (en) 1977-01-14

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930121