| 摘要 |
855,197. Steering vehicles. AMERICAN METAL PRODUCTS CO. April 29, 1957 [May 9, 1956], No. 13592/57. Class 79(5). [Also in Group XXV] A steering assembly comprises a longitudinally movable cross rod 10 suspended at one end for swinging movement by a link 12 supported by a bracket 11, the link having a sleeve-joint stud element rigidly secured to each of its ends and rotatable in one of a pair of outer cylindrical elements secured respectively to the end of the rod and the bracket, and a sleeve 9 threaded on the opposite end of the rod and formed with a socket 14 having a ball 15 universally pivoted therein. The assembly also includes a pair of laterally extending rods 17, the adjacent ends of which are pivoted to the longitudinally movable rod by ball-and-socket joints 18 and each of which is threaded at its opposite end for connection with an internally threaded sleeve 19 which receives the threaded stem 21 of the socket of a ball-and-socket joint 22 the ball pin of which is connected to the operating arm of a wheel-supporting yoke. Each of the ball or sleeve type joints (see Group XXV) comprises a ball or stud having a polished surface which mates under a predetermined pressure with the low-friction surface of a resin insert shaped between the polished surface and the socket under heat and pressure at the time of assembly. Specification 768,859 is referred to. |
