Patent ID: 6712409
Filing Date: 2004-03-30
Classification: E05B,Y10S,Y10T

Abstract:
A door handle for vehicles comprisinga longitudinally movable connecting rod for coupling the handle to a lock, a crash locking means for the connecting rod, wherein the crash locking means is normally inactive, and a crash sensor configured to react to inertia forces, wherein the crash sensor is connected to the crash locking means so as to activate the crash locking means in the event of a crash, whereby the crash locking means blocks the connecting rod in the event of a crash and the inertia forces which act to actuate the handle are not transmitted to the lock, wherein the connecting rod comprises a piston movable together with the connecting rod, wherein the piston is arranged in a stationary container and the connecting rod extends through the container, wherein the container contains a liquid medium so that the piston is moved in this medium when the connecting rod is moved, wherein the viscosity of the medium changes in dependence on an electrical field acting in the medium, further comprising a switch which normally is in a switched-off position and keeps the medium free of electrical voltages and highly liquid, so that an essentially free movement of the piston in the medium is possible, wherein the crash sensor is connected to the switch such that in the event of a crash the crash sensor switches on the switch and an electrical field is generated in the medium, so that the medium becomes viscous and a movement of the piston in the medium is essentially blocked.