GB857008A - An actuating device for a gear-changing mechanism with preselector - Google Patents

An actuating device for a gear-changing mechanism with preselector

Info

Publication number
GB857008A
GB857008A GB13747/58A GB1374758A GB857008A GB 857008 A GB857008 A GB 857008A GB 13747/58 A GB13747/58 A GB 13747/58A GB 1374758 A GB1374758 A GB 1374758A GB 857008 A GB857008 A GB 857008A
Authority
GB
United Kingdom
Prior art keywords
shaft
gear
lever
pins
slots
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
GB13747/58A
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.)
ZD Y 9 KVETNA
Original Assignee
ZD Y 9 KVETNA
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 ZD Y 9 KVETNA filed Critical ZD Y 9 KVETNA
Publication of GB857008A publication Critical patent/GB857008A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2702/00—Control devices wherein the control is combined with or essentially influenced by the engine or coupling, e.g. in an internal combustion engine, the control device is coupled with a carburettor control device or influenced by carburettor depression
    • B60K2702/08—Semi-automatic or non-automatic transmission with toothed gearing
    • B60K2702/18—Semi-automatic or non-automatic transmission with toothed gearing with a preselection system, e.g. semi-automatic
    • B60K2702/20—Semi-automatic or non-automatic transmission with toothed gearing with a preselection system, e.g. semi-automatic using different control members for preselection and actuating, e.g. shift actuation is initiated by clutch pedal with elastic connection for energy accumulation

Abstract

857,008. Change-speed control. ZAVODY 9. KVETNA NARODNI PODNIK. April 30, 1958 [May 3, 1957], No. 13747/58. Class 80 (2). [Also in Group XXXI] A gear-changing mechanism, for a motor cycle or scooter having a gear-box providing four forward speeds, comprises a twist grip 36 for preselecting a gear and a lever 40 for disengaging the main driving clutch and establishing the gear ratio. Grip 36 is operatively connected to a plate 10 pivoted at 11 and having cam slots engaging pins 8, 9 of sleeves 6, 7 which are loosely mounted on a gear change shaft 1. Pins 8, 9 also co-operate with slots in a stationary plate 12. Sleeves 6, 7 are disposed within forked mountings of selector members 3, 4 having suitably shaped slots 16, 17 co-operating with shift forks 18, 19 of the gear change mechanism. Lever 40 is either mounted on the twist grip and rotatable therewith, or is mounted on the handle-bar, and is connected by a cable 39 to a bell-crank lever 38 having an arm 42 formed with a cam surface actuating a follower 43 for disengaging the clutch. Bell-crank 38 also has a lost-motion connection with the shaft 1 such with on actuating lever 40 the clutch is disengaged before the lost-motion is taken up and shaft 1 rotated. The shift forks have sleeves 20, 21 provided with pins 29, 30 co-operating with circumferential grooves 22-27 and a longitudinal groove 28 in the shaft 1. In operation, twist grip 36 is rotated to an appropriate position to preselect a gear, thereby rotating the cam plate 10 and through pins 8, 9 and sleeves 6, 7 moving the selector members 3, 4 axially of shaft 1. When lever 40 is actuated, the clutch is disengaged and shaft 1 rotated to bring groove 28 into register with pins 29, 30. Rotation of shaft 1 also, by means of keys 5, results in the rotation of the selector members 3, 4. During this rotation the shift forks are shifted axially of the shaft 1 by the edges of the slots 16, 17 as the ends 16a, 17a of the slots are moved towards the forks, groove 28 being of sufficient width to permit this. The appropriate gear is thus engaged. When lever 40 is released the bell-crank lever is returned to its initial position by a spring 31 so that the clutch is engaged, groove 28 is moved out of register with pins 29, 30 so that the shift forks are retained in position axially of the shaft 1 by the appropriate circumferential grooves, and the selector members are rotated to their initial position in which the shift forks are located in wide parts of the slots 16, 17.
GB13747/58A 1957-05-03 1958-04-30 An actuating device for a gear-changing mechanism with preselector Expired GB857008A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS857008X 1957-05-03

Publications (1)

Publication Number Publication Date
GB857008A true GB857008A (en) 1960-12-21

Family

ID=5456214

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13747/58A Expired GB857008A (en) 1957-05-03 1958-04-30 An actuating device for a gear-changing mechanism with preselector

Country Status (1)

Country Link
GB (1) GB857008A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014645A1 (en) * 1991-02-13 1992-09-03 Maeda Industries, Ltd. Device for making gear change of bicycle
US5390565A (en) * 1991-11-11 1995-02-21 Maeda Industries, Ltd. Bicycle speed change system, bicycle speed change method and bicycle speed change operation assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014645A1 (en) * 1991-02-13 1992-09-03 Maeda Industries, Ltd. Device for making gear change of bicycle
US5390565A (en) * 1991-11-11 1995-02-21 Maeda Industries, Ltd. Bicycle speed change system, bicycle speed change method and bicycle speed change operation assembly

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