| 摘要 |
An impact absorption structure for an indoor door of a building is provided to prevent the door from being damaged and improve the durability of the door by preventing an impact from being applied to the door and a door frame. An impact absorption structure for an indoor door comprises a vertical frame(10) of a door frame, which has a case mounting groove(11). The case mounting groove(11) includes a cylinder insert groove(12) and an extension pipe insert groove(13) in the center thereof. A pneumatic cylinder(20) is inserted into the cylinder insert groove(12). A support plate case(30) is installed in the case mounting groove(11) through a coupling bolt(34). A support plate case(40) is hinged to a support plate insert groove(31), and has an elastic pad(41) adhering thereto over an entire outer surface thereof. An outlet pipe(50) is connected to an extension pipe(22). |
