Shock absorber for a bicycle

摘要

A shock absorber for a bicycle or another, at least partly muscle-powered, vehicle has a damper device with a damper housing in which a first and a second damper chamber are separated from one another via at least one damper piston. A piston rod connected with the damper piston extends from the damper piston through the second damper chamber out of the damper housing. The first damper chamber is in communication with the second damper chamber via a flow duct that leads through the piston rod out of the damper housing toward at least one throttling device. The flow duct, at the throttling device, has a damping duct provided with a field-sensitive rheological fluid which, by way of a field generating device disposed at the throttling device, can be exposed to a field of a predetermined strength to influence the pass-through flow of the field-sensitive rheological fluid through the throttling device.

主权项

1. A shock absorber for a muscle-powered or partially muscle-powered vehicle, the shock absorber comprising:
a damper device having a damper housing with a first damper chamber and a second damper chamber formed therein; at least one damper piston separating said first and second damper chamber from one another, and a piston rod connected to said damper piston and extending from said damper piston and through said second damper chamber out of said damper housing; at least one throttling device; said piston rod having a flow duct formed therein and fluidically connecting said first and second damper chambers to one another, extending through said piston rod and to said at least one throttling device; said flow duct including at least one damping duct at said throttling device provided, said flow duct containing a field-sensitive rheological fluid; and a field generating device disposed at said throttling device for subjecting said field-sensitive rheological fluid to a field of a predetermined strength for influencing a flow of said field-sensitive rheological fluid through said throttling device; and at least one spring device including a first and at least one second spring chamber provided with a compressible medium.