| 摘要 |
The present invention relates to a door having a function for preventing a slack and, more specifically, to a door having a function for preventing a slack, wherein the door is made of wood and is installed in a school or the like, and a horizontal support frame which is made of steel and formed to be bent in an upper window frame or a lower portion of a door frame is double installed corresponding to each other to prevent the upper window frame or the door frame from drooping downward by a vertical load. The heights of lower portions of a pair of vertical support frames which are double installed are asymmetrically equipped in order for the doors to be installed in different heights. A hanger rail is installed in a lower portion of a side of the vertical support frames to install a hanger door. |
