| 摘要 |
PCT No. PCT/EP89/01565 Sec. 371 Date Oct. 17, 1990 Sec. 102(e) Date Oct. 17, 1990 PCT Filed Dec. 18, 1989 PCT Pub. No. WO90/07662 PCT Pub. Date Jul. 12, 1990.A selector mechanism for a gearbox in which speed change couplers (28, 29) and a range change coupler (34) are operated by the same selector lever (47). Lever (47) operates the speed change couplers to engage a plurality of drive speeds when moved from a neutral plane to speed selection positions (1, 2, 3, 4) in a speed change gate and operates the range change couplers when moved to discrete range change positions (H,L). The selector mechanism is arranged so that on movement of the selector lever (47) out of the speed change gate towards a desired range change position (H, L) the range change coupler (34) is moved towards an engaged position for the desired range and on movement of the selector lever back towards the speed change gate from the desired range change position the movement of the range change coupler (34) is completed to engage the desired range. |
