GB1008556A - Assembly of gearbox, driveshaft and gear shift mechanism - Google Patents

Abstract

1,008,556. Change-speed control. FORD MOTOR CO. Ltd. July 22, 1964, No. 29575/64. Heading F2D. In a manual gear shift for a four forward speeds and one reverse gear-box, a control shaft 49, rotated for gear selection, and axially moved for gear establishment, by a remote universally mounted gear-shift lever 31, is mounted inside an extension 1 which is fixed to the rear of the gear-box and supports the gear-box output shaft by a bearing 7. The gearshift lever 31 comprises a polyurethane partspherical fulcrum member 35 pinned thereto and urged into engagement with a seating 27 in an extension closure member 23 by a spring 39 reacting, through a collar 41, on a partspherical cap 33 engaging a member 25 screwed on to the member 23. The short arm 43 of the gear-shift lever enters a recess 45 in a crank 47 at one end of the control shaft 49. The opposite end of the control shaft 49 has fixed thereto an element 67 having two arms 69, 71, the former being engageable with recesses 73, 75 in 1-2 and 3-4 shift rods respectively, and the latter being engageable with a recess 77 in a lever 13, which is pivoted in the extension 1 and engages a recess in a Reverse shift rod. The 1-2 and 3-4 shift rods carry shift forks and the Reverse shift rod carries a reversing pinion. The control shaft 49 is supported rearwardly in a polyurethane bearing in a boss integral with the closure member 23 and forwardly in a plastics bearing 55 fitted in a bridge 56 bolted to lugs integral with the extension 1. To deter inadvertent selection of Reverse, movement of the gear-shift lever 31 to select Reverse is effected against the bias of a spring 60 reacting on a screwed plug 67 and loading a plunger 59 which, by a shoulder 61 thereon, is retained in the extension 1 and which is engageable by the crank 47.