| 摘要 |
817,027. Ball and socket joints. FORD MOTOR CO. Ltd., (Ford Motor Co.). Sept. 30. 1957, No. 30577/57. Class 65(2) The socket receiving the ball-headed stud 18 comprises brackets 11, 24 having embossments containing bearings 14. 21, in edge abutting relationship. The joint is sealed by a boot 22 bonded or otherwise secured to the bearing 21 and having an opening through which the stud 18 protrudes in surface contact therewith. The boot is made of a natural or synthetic elastomer and is secured to an annular recessed serrated skirt 34 formed on the bearing 21. Its lower edge 23 embraces the shank below an annular ridge 19. Alternatively, the boot may be bonded to the edge of the bearing and may engage an annular recess in the shank. In a modification an annular lip formed on the boot is held between the bearing and the lower bracket in a recess formed in the latter, and the lower edge of the boot is of U- shaped section to engage the ridge 19. The bearings may have surfaces of fabric impregnated with resin and graphite. |
