Patent Number: 6,168,143

Title: Pneumatic spring

Abstract: A pneumatic spring, in particular for rail vehicles, trucks and busses, has a bellows made of elastomer material, if required provided with reinforcing inserts; a pot to whose upper part the bellows are secured, the bellows preferably rolling on the outer wall of the pot; a plate-shaped cover spaced apart from the pot and to which the other end of the bellows is secured; a central rod firmly secured to the cover and which projects out of the lid over a distance extends parallel to the bellows and enters the pot; a ball-and-socket joint located between the pot and the rod and supported against the inner wall of the pot; an air pipe; a slide bush arranged between the ball-and-socket joint and the rod and guided on the outer wall of the rod; and an intermediate bush arranged between the ball-and-socket joint and the slide bush.

Inventors: Lambrecht; Dirk (Hamburg, DE), Oertel; Holger (Revenahe, DE)

Assignee: Phoenix Aktiengesellschaft

International Classification: F16C 23/00 (20060101); F16F 13/02 (20060101); F16F 9/05 (20060101); F16F 9/02 (20060101); F16C 23/04 (20060101); F16F 009/04 ()

Expiration Date: 01/02/2018