| 摘要 |
PURPOSE: An impact absorption device for blast resistant fittings is provided to prevent the damage in life and properties by the coupling force of an upper control bar and a lower fixing bar when wind pressure is applied to the . CONSTITUTION: An impact absorption device for blast resistant fittings(10) includes a fixing protrusion unit, a base(20), a lower fixing bar(25), a frame(30) and a left/right adjustment nut(29). The fixing protrusion unit is coupled to a slope in an assistant frame(14), and a cutting portion is cut in an inner direction from an outer direction. A screw connection hole is formed in the fixing protrusion unit, and the base is coupled to an upper portion of the fixing protrusion unit. A guide groove is formed at the inner portion of the base, and the lower fixing bar comprises a guide protrusion(26). The guide protrusion is coupled to the guide groove of the base and forms the concavo-convex plane(25a) by being protruded toward the upper portion. The left/right adjustment nut is installed at the base and fixes the position of the guide protrusion coupled to the guide groove. |
