| 摘要 |
A first member includes a pair of parallel portions disposed on opposite sides of a second member and pivotally interconnected thereto by means of a pivot pin assembly including aligned holes in the parallel portions and the second member. The pivot assembly further includes a bushing received in the hole in the second member and a pin received in the bushing and in the holes in the parallel portions. Received on one end of the pin and welded thereto to form an integral part thereof is a collar while a cap is secured over the other end of the pin by a cap screw. First and second flat washers are respectively received on the pin at the inner ends of the collar and cap and are held against opposite sides of the second member and against first and second pairs of opposed Belleville springs located at the opposite ends of the bushing. |
