Belt tensioner

摘要

A tensioner for a safety belt includes a cylinder, a piston which is slidably arranged within the cylinder, and a traction transfer element which is connected with the piston to transfer a movement of the piston to the safety belt. The tensioner further includes a drive which may exert a driving force on the piston to tension the safety belt. The piston is provided with a deformation element which the traction transfer element engages.