Air spring strut for motor vehicle wheel suspensions
First Claim
1. An air spring strut for a wheel suspension of a motor vehicle body, including an air spring head for support on such motor vehicle body, a cylindrical extension axially projecting from said air spring head, a shock absorber having at one end a piston rod extending into said air spring head and being resiliently supported therein and a cylinder receiving said piston rod with a damper piston disposed in said cylinder, a tubular air spring piston sealingly mounted to said cylinder and extending therefrom axially around said piston rod toward said air spring head and into said cylindrical extension, a rolling sleeve bellows having opposite ends, one connected to said cylindrical extension and the other to said tubular air spring piston with a loop formed between said cylindrical extension and said tubular air spring piston, said air spring piston being connected to said shock absorber cylinder so as to be cardanically movable thereon and having at its opposite end adjacent said air spring bellows a slide structure, and a guide structure extending axially from said air spring head and into said slide structure for slidably supporting the end of said tubular air spring piston when said air spring strut is deflected sidewardly thereby to prevent contact between adjacent wall portions of said rolling bellows.
2 Assignments
0 Petitions
Accused Products
Abstract
In an air spring strut for a wheel suspension of a motor vehicle including an air spring head to be mounted to a vehicle body, a shock absorber having a piston rod resiliently supported in the air spring head and a cylinder receiving the piston rod with a damper piston, a tubular air spring piston mounted to the cylinder and extending therefrom into a cylindrical extension of the air spring head and a rolling sleeve bellows connected to the air spring piston and the cylindrical extension, the air spring piston is connected to the shock absorber cylinder elastically and has at its opposite end a slide structure disposed around a guide structure extending from the air spring head for slideably supporting the end of the tubular air spring piston to prevent adjacent wall portions of the rolling sleeve bellows from contacting each other.
32 Citations
16 Claims
- 1. An air spring strut for a wheel suspension of a motor vehicle body, including an air spring head for support on such motor vehicle body, a cylindrical extension axially projecting from said air spring head, a shock absorber having at one end a piston rod extending into said air spring head and being resiliently supported therein and a cylinder receiving said piston rod with a damper piston disposed in said cylinder, a tubular air spring piston sealingly mounted to said cylinder and extending therefrom axially around said piston rod toward said air spring head and into said cylindrical extension, a rolling sleeve bellows having opposite ends, one connected to said cylindrical extension and the other to said tubular air spring piston with a loop formed between said cylindrical extension and said tubular air spring piston, said air spring piston being connected to said shock absorber cylinder so as to be cardanically movable thereon and having at its opposite end adjacent said air spring bellows a slide structure, and a guide structure extending axially from said air spring head and into said slide structure for slidably supporting the end of said tubular air spring piston when said air spring strut is deflected sidewardly thereby to prevent contact between adjacent wall portions of said rolling bellows.
Specification