1503078 Vehicle suspension AMERICAN CARRIER EQUIPMENT Inc 26 March 1976 [20 Oct 1975] 12265/76 Heading B7D A suspension assembly for use in providing a vehicle having a frame supported on an axle 13 by leaf springs 14 with additional air springs 34 comprises a U-shaped cradle 20 which supports the air springs 34 and is adapted to be positioned beneath the vehicle frame with its ends supported by the leaf springs 14, and a pillow plate 38 seated on the air springs 34 and forming part of a housing 44 which is adapted to receive the ends of longitudinal frame members 12 and be secured thereto after the rear portions of the members 12 and the rear shackles for the leaf springs 14 have been cut away. Pins 28 at the ends of the cradle 20 bear on the leaf springs 14 as shown or are passed through pillow blocks welded to the leaf springs. Hydraulic dampers 58 are connected between the cradle 20 and the housing 44, and a radius rod 54 is connected between brackets 60, 62 on the cradle and housing to provide lateral location. A leveling valve 66 for controlling admission of air to the springs 34 is mounted on the pillow plate 38 and connected to the cradle 20 by a link 67.
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