Inspection door opening closer for e.g. fire proof housing, has door leaf made of fire proof material, where door leaf has aperture, which is closed by fire proof glass pane that is attached by glazing framework

摘要

The closer has a door leaf (7) forming a door rebate, where door leaf is made of a fire proof material. The door leaf includes an aperture (8), which is closed by a fire proof glass pane (9). The fire proof glass pane is attached by a glazing framework made of fire proof material at the door leaf. The fire proof glass pane is attached at an inner side of the door at the door leaf.