| 摘要 |
1,270,209. Change-speed control. GENERAL MOTORS CORP. 17 Dec., 1970 [13 Jan., 1970], No. 59958/70. Heading F2D. A floor mounted motor-vehicle manual gearshift lever 22 fulcrumed at its inner end 36 to the spherical upper end 20 of a ball-mounted selector lever 18 is pivotally mounted intermediate its length at a pin 30 in a yoke 28 fast on a cranked rod 32 rotatably mounted but axially retained in a bearing boss 26 of the gearbox cover 10, wherein side-to-side selecting movement of the gear lever 22 for pivotal movement about the cranked rod bearing 26 serves to select the appropriate striker rod 12 and fore-and-aft pivotal movement about pivot pin 30 serves to engage the selected gear. The spherical upper end 20 of the selector lever 18, which is the effective point of action of the gear-shift lever 22, is disposed at a radial distance from the pivot axis "x-x" of the bearing 26 which is greater than the radial distance from the axis of the pivot pin 30, the relative radial distances being modified as required depending on the leverage ratios required at the gear-shift lever knob for movement in the side-to-side and fore-and-aft senses respectively. |
