| 摘要 |
<p>1,229,999. Leaf spring suspension. CRANE FRUEHAUF TRAILERS Ltd. 16 Aug., 1968 [30 Oct., 1967], No. 39240/68. Heading B7D. A leaf spring suspension comprises a main leaf 31 engaging, adjacent its bent;over ends, wear plates 18, 23 mounted on front and rear hanger brackets 15, 22 affixed to a side frame member 12, additional leaves 32, 33, and an eye leaf 34, secured at one end with the other leaves to an axle 26, the eye 46 being forcibly moved into and secured to the front hanger bracket 15 through pressurized elastomeric bushings 21 to prestress the spring leaves. The leaves 31, 32, 33 have central apertures surrounded by a raised lip 36, Fig. 3, to prevent relative movement and to locate pads 37 of plastics material. The spring is anchored to the axle 26 by means of a seat 27, a saddle 38 and U-bolts 41. The eye 46, Fig. 4, has tapered inner surfaces 47 and a central cylindrical surface 48, engaged by a sleeve 49 to locate the pair of bushings 21 which together with sleeves 51 are inserted through sleeves 19 in the hanger bracket 15 having tapered walls corresponding to the tapered surfaces 47. A sleeve 52 extends through sleeves 49, 51 and its ends are lapped over washers 53.</p> |
