| 摘要 |
PROBLEM TO BE SOLVED: To require a technology which achieves functions of energy conservation, power saving, ventilation, protection from insects, crime prevention, and fire protection at the same time, while considering that: since an entrance door of an apartment house requires functions of crime prevention and fire protection, and ventilation is not allowed and dependence on air-conditioning is actual in summer season; there is a technique of installation of a screen door on the inside of an opened door, but there is uneasiness about safety; and a technique of providing a ventilation window in a door itself is devised, but the ventilation window is hardly mounted in an existing door, thus it is not put in practice.SOLUTION: A ventilating window 5 is provided in an entrance door 1, thereby energy conservation and power saving can be achieved while preventing injurious insect from intruding by an insect screen door 10. Moreover, blade-like fire prevention plates 6 for shielding the ventilating window 5 by a spring force caused by release of a braking tool 9 due to heat in the fire disaster are installed in the ventilating window 5, thus imparting a fire protection function to the ventilating window. It also fulfills a role of a crime prevention lattice. These components are modularized with a window frame structure 2 used as a skeleton and mounted in an opening formed in the entrance door 1, thereby allowing this module to be easily mounted not only in a newly installed door but also in an existing door. |
