Patent ID: 6065573
Filing Date: 2000-05-23
Classification: F16F

Abstract:
An adjustable energy absorption device, comprising:an outer cylinder;an inner shock tube arranged within said outer cylinder;a piston slidably disposed within said shock tube;a piston rod extending from said piston and adapted to receive an impact from a body in motion;a damping fluid reservoir located within the interior of said outer cylinder;means for providing fluid communication between said fluid reservoir and the interior of said shock tube;valve means for controlling the flow of fluid between said fluid reservoir and the interior of said shock tube; andan adjustment member for controlling said valve means and thus controlling the resisting force setting of the energy absorption device, said adjustment member having a first end portion freely accessible from outside said absorption device, a second end portion retained within said absorption device, and a frangible portion connecting said first end portion to said second end portion;wherein the resisting force of the energy absorption device is adjusted to a predetermined setting by rotating said first end portion of said adjustment member, and then said first end portion is broken away from said second end portion at said frangible portion to thus render the setting of the device tamper-proof.