GB396888A - Elastic suspension for the carrying wheels or rollers of lorries and other vehicles having endless band tracks - Google Patents

Abstract

396,888. Endless-track vehicles. ANSALDO SOC. ANON., Cornigliano, Genoa, Italy. May 10, 1932, No. 13418. Convention date, Aug. 13, 1931. [Class 79 (i).] Anelastic suspension for endless-track vehicles comprises forked arms 1, 2, Figs. 1 and 2, pivoted on the vehicle and carrying the rollers running on the track, one arm having fixed thereto a leaf spring or springs 7 while the other arm has pivotal supports 9, 10 in which the ends of the main and the first leaves of the springs slide freely, the arrangement being such as to distribute the weight uniformly between the rollers and to ensure that no torsional stress produced by transverse pressure of the rollers during steering will be transmitted to the springs. Two, three or four rollers may be grouped in a single suspension system. In the construction shown in Fig. 7 for three rollers an arm 17 pivoted at 18 is connected by a spring 7 to an arm 24 which is pivoted at 23 and carries a roller on a pivot 26. The two other rollers are pivoted at 14, 15 on a beam 16 pivoted at 13 to the arm 17, the pivots 18, 23, and the spring connection 9 being so situated relatively to the roller axles that the load carried by each roller is the same. In a modification arranged for four rollers, the two rollers are removed from the pivots 11, 12, Fig. 1, and are replaced by two centrally-pivoted beams, each beam having a roller pivoted at each end thereof.