Profile body for shutter - is used in ventilation system and has fillet with crosspiece running along one of its narrow sides

摘要

The fillet (2) with a crosspiece (3) has a number of circular holes (1), and the profile body (10) has a slot (6) along the other narrow side (5) opposite to the fillet (2) which can engage the fillet and crosspiece of an adjacent profile body. The circular holes (1) are arranged in a regular manner, and at their narrowest through passage point have a dia. between 1 and 2 mm. They are formed conically, with their formation narrowing towards the outer wide side (16) of the profile body. Alternatively, they may widen in that direction. The cone angle is pref. between 20 and 35 deg. USE/ADVANTAGE - As a shutter ventilation system profile body which has an optimal insert inhibitor effect, whilst maintaining good ventilation.