Patent ID: 7823829

Claim:
An equipment-fastening device for fastening a piece of equipment to a support structure of an aircraft, the equipment-fastening device comprising: a first fastening section configured to fasten to the support structure; a second fastening section configured to fasten to the piece of equipment; a load-limiting release mechanism defining a first load path between the first and second fastening sections, the release mechanism joining the first and second fastening sections to each other at a load dissipating connection below a pre-specified releasing force and transmitting a nominal load between the first and second fastening sections, the nominal load being smaller than the releasing force and stemming from the piece of equipment in a normal non-crash state, wherein the release mechanism is released when the releasing force is reached due to a crash so as to sever the load-dissipating connection and so as to sever the first load path; and a load-peak transformer connected to the first and second fastening sections and to the release mechanism, and having at least one load-limiting, impact-energy-absorbing deformation element configured as two deformable plates disposed one above the other and joined at each end with a space therebetween to form a hollow profile, the deformable plates providing a second load path between the first and second fastening sections after a release of the release mechanism and configured to absorb crash-induced load peaks stemming from the fastened equipment that are greater than the releasing force until a maximum possible nominal deformation of the load-peak transformer is reached, and to transmit only part of the load peaks between the first and second fastening sections in a load-limiting manner, and wherein the deformation element transmits a residual load peak between the first and second fastening sections, the residual load peak remaining due to the absorption of the load-peak after the maximum possible nominal deformation has been reached, the residual load peak being introduced into the first fastening section with a time delay relative to the release of the release mechanism.