Abstract: An adjustable-force energy absorbing device includes first and second support members connected for sliding movement in a direction parallel with the steering shaft axis of a vehicle, the first support member being secured to the vehicle chassis, and the second support member being connected with the outer tube of the steering mechanism. Upon impact, the second support member is displaced from its normal first position spaced from one end of the first support member toward a second position adjacent the first support member one end. This displacement is resisted by at least one U-shaped energy absorbing element, the number and/or degree of operability of the energy absorbing elements being controlled by at least one impact-responsive pyrotechnic device.

Abstract: A device is disclosed for adjusting an energy absorbing system of an automobile vehicle steering column mounted in a support assembly which is connected to and attached to the structure of the vehicle by fixing devices each having a respective fixing axis. At least one fixing device includes at least one energy absorbing capsule disposed in the support assembly on a retaining axis and clamped in the support assembly by fastening devices. The fixing axis and the retaining axis coincide. The fastening devices are independent of the fixing devices and include a nut and a rod shoulder in order to allow adjustment to achieve the required clamping of the fastening devices to obtain the required energy absorption. Adjustment of the clamping of the energy absorbing capsule or capsules is therefore independent of the clamping of the devices for fixing the support assembly to the vehicle structure.

Abstract: An adjustable-force energy absorbing device includes first and second support members connected for sliding movement in a direction parallel with the steering shaft axis of a vehicle, the first support member being secured to the vehicle chassis, and the second support member being connected with the outer tube of the steering mechanism. Upon impact, the second support member is displaced from its normal first position spaced from one end of the first support member toward a second position adjacent the first support member one end. This displacement is resisted by at least one U-shaped energy absorbing element, the number and/or degree of operability of the energy absorbing elements being controlled by at least one impact-responsive pyrotechnic device.

Abstract: A device is disclosed for adjusting an energy absorbing system of an automobile vehicle steering column mounted in a support assembly which is connected to and attached to the structure of the vehicle by fixing devices each having a respective fixing axis. At least one fixing device includes at least one energy absorbing capsule disposed in the support assembly on a retaining axis and clamped in the support assembly by fastening devices. The fixing axis and the retaining axis coincide. The fastening devices are independent of the fixing devices and include a nut and a rod shoulder in order to allow adjustment to achieve the required clamping of the fastening devices to obtain the required energy absorption. Adjustment of the clamping of the energy absorbing capsule or capsules is therefore independent of the clamping of the devices for fixing the support assembly to the vehicle structure.