Heat shield device with plates fixed to wall by bolt through wall has collar-form recess in edge region

摘要

The heat shield device has several plates (3) attached by at least one fixing element (2) to a wall (1). The fixing element, in the form of a bolt, passes through a recess (4) in the wall. The edge region of the recess is in the form of a collar. It includes a rounded region (5), which merges into a cylindrical extension (6).