Spring is in the air: James Fildes
Oops! Another small knock to your car in the car park. But thanks to the new spring steel buffer from Berry, it is the barrier that yields this time and not your vehicle’s bodywork.
A key feature of the buffer is its deflection – typically around 300mm, according to Berry, part of the Hill & Smith group. This means that impact forces are absorbed by the buffers rather than transmitted directly to the mounting bolts or towards deformation of the railing system.
They usually require one or two 20mm bolts. Embedment need be only 80mm and the pull-out loading is just 50kN. This is, in fact, a quarter the number of bolts needed at half the depth – which also saves on installation and repair time.
Officially called the RB1 buffer, it has a small footprint in the parking bay. Overall parking length is reduced only by the 100mm depth of the barrier.
However, sufficient free space must be available behind for barrier deflection.
A base plate can be used, if required, to spread the impact load on the buffer over a wider surface area to avoid damage to the substrate and to assist in levelling the buffer installation on uneven surfaces.