GB191313883A - Improvements in Shock Absorbers particularly applicable to Vehicles. - Google Patents

Abstract

13,883. Sowden, C. N., and Wood, D. June 16. Laminar springs; connexions, attachments, and adjustments, applicable generally for tensile and compressive springs; vibration-dampers.- Relates to shock-absorbers particularly applicable to vehicles, and of the kind in which spring and frictional elements are employed, and consists in providing spring elements which function under light shocks, the resistance of the springs being overcome, and the friction elements being brought into play, only for heavy shocks. Figs. 1 and 2 show one construction in which a lever 10 connected with a vehicle axle by a link 11 is jointed to levers 12, 13, pivotally carried by the vehicle frame 14. Friction disks 19, 20 bolted together around the hub 16 of the lever 10 are mounted in suitable recesses in disks 18 integral with the levers 12, 13 and are provided with inclined surfaces separated from corresponding surfaces on the disks 18 by friction material 22. The levers and disks are connected by a central bolt 15 and outside plates 17. A U-shaped laminar spring 23 is held in recesses 19<b>, 20<b> between the disks 19, 20 by a screw 30 and the free ends of the spring bear upon the lever 10. Light shocks are taken by the spring 23, the friction elements offering sufficient resistance to allow the spring only to operate. When heavy shocks occur, the resistance of the spring is overcome, and the friction disks move with respect to the levers 12, 13, the outer laminations of the spring moving into contact with either of the surfaces 29 on the disks 19, 20. In the construction shown in Fig. 3, the laminar springs are replaced by helical spring-systems 53 mounted in pockets arranged tangentially on the disks 19, 20. The springs are adjusted by studs 55 and nuts 56.