Tandem axle vehicle spring suspension
US3936073A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1975 |
| Grant date | Feb 3, 1976 |
| Priority date | — |
| Expiry date | Apr 7, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G11/52
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a friction-free vehicle suspension having axle ends pivotally connected by side walking beams, which are journalled on the ends of a cross rod, the improvement resides in the mounting, arrangement and proportioning of both helical compression springs and rectilinear movement shear rubber springs to support the vehicle frame on the ends of the cross rod. This is done in such manner as to achieve the maximum advantages from the distinctive characteristics of each type. The helical springs, which provide, in a very small space, a very large amount of resilient support, but no lateral control, are located inboard along the cross rod. The shear rubber springs are so mounted outboard along the cross rod to be fully effective in providing adequate resilient control of axle movement both laterally and longitudinally of the line of vehicle movement, as well as vertically, and also to provide high and wide stable spring centers for sidesway control. As a result in the very limited space available, a lighter, lower cost suspension is provided in which the ride characteristics can readily be adapted to the service without sacrifice of friction-free and full lateral sidesway control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.