Pic. 5.2. The principle of operation of the energy-absorbing mechanism
Energy absorbing mechanism (pic. 5.2) mainly consists of bottom bracket, energy absorbing plate, tear-off bracket, deformable main shaft and deformable intermediate shaft.
When the impact is transmitted to the steering wheel in a frontal collision (secondary collision), the bottom bracket and bracket spacer, and the breakaway bracket and column tilt lever stop bolt are separated, causing the steering column to move forward.
At the same time, the bottom bracket energy absorbing plate is deformed by the bracket spacer and helps to absorb the impact energy of the secondary collision. In addition, the amount of movement of the entire steering column is absorbed by the compression of the main and intermediate shafts.