Deflection jounce bumper for strut suspension

Patent · Tue Jul 21 04:00:00 EDT 1987

OSTI ID:6041666

Hassan, M

A suspension system is described for a vehicle including sprung and unsprung masses, the masses being separated by a spring bumper, the masses being located by a rod means so that distortion of the spring bumper occurs principally by axial compression. The bumper comprises an integral generally cylindrical body of elastic material such as rubber having opposed upper and lower end faces, the bumper having a solid upper hub portion closely encircling the rod means and a lower impact portion. The lower impact portion includes a cylindrical outer wall section and a cylindrical inner wall section concentrically disposed about the rod means and defining an intermediate cylindrical downwardly opening channel of predetermined radial extent and axial depth. The wall sections are integrally connected by axially extending uniformly spaced paired bridging segments. Each pair of segments in the form of a pair of mirror image arcuate segments symmetrically disposed about a vertically extending column axis. Each pair of segments defines adjacent interconnecting portion of the inner and outer walls, an axial column blind bore with the pair of segments having their center of curvature on their associated column bore axis. When aid bumper is impacted, the inner and outer wall sections together with the column-like arcuate bridging segments stretching to absorb impact energy providing initially high dampening load displacement resistance.

• Assignee: Chrysler Motors Corp., Highland Park, MI
• Patent Number(s): US 4681304
• OSTI ID: 6041666
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330601* -- Vehicle Design Factors-- Body & Chassis
COMPRESSION
DAMPING
ELASTICITY
ELASTOMERS
MACHINE PARTS
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
RUBBERS
SHOCK ABSORBERS
SPACE DEPENDENCE
SPRINGS
SUPPORTS
SYMMETRY
TENSILE PROPERTIES
VEHICLES