Hydraulic damper and air spring unit

Details Hydraulic damper and air spring unit Hydraulic damper and air spring unit

1986-12-19

1988-09-20

Reger, Duane A.

Spring devices

Vehicle

Comprising compressible fluid

267220, F16F 908

Patent

active

047719940

ABSTRACT:
A hydraulic damper and air spring unit of the type including a hydraulic damper main body provided with a piston rod slidingly projecting upwards therefrom, a tubular member with the lower end thereof being secured to the outer periphery of the main body and the upper end extending upwards around the main body, and a rolling rubber member being provided between the upper end of the tubular member and a shell secured to the upper end of the piston rod to define an air chamber surrounding the piston rod and the upper portion of the main body. The tubular member includes an annular spacer with one end being sealingly secured to the outer periphery of the damper main body and having an annular shoulder at the other end, and a piston member having on one end a retaining portion which is engageable with the shoulder on the spacer and further having a tubular portion surrounding the upper portion of the damper main body with a spaced relationship and connected to the rubber member, the retaining portion being sealingly connected to the shoulder, whereby the reliability of welding is improved.

REFERENCES:
patent: 4555096 (1985-11-01), Pryor

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