Windows and doors assembly structure having a joint portion of 45 degrees

摘要

There is provided a prefabricated window/door structure with interconnecting 45 degree joints where a horizontal bar has its both ends cut at an angle of 45 degrees and includes: a first connection space formed in the direction of the length of the horizontal bar so that the inner space of the horizontal bar is open to the outside, and a screw fastening part with a screw fastening groove protruding in the first connection space; a vertical bar has its both ends cut at an angle of 45 degrees to form a joint of 45 degrees when each of the ends of the vertical bar faces each of the ends of the horizontal bar and includes: a second connection space formed in the direction of the length of the vertical bar so that the inner space of the vertical bar is open to the outside, and a screw hole formed on a side wall in the second connection space, to be aligned with the screw fastening groove; and a support block includes: a first support part to be inserted into the first connection space of the horizontal bar and a second support part to be inserted into the second connection space of the vertical bar. The first support part includes a fastening part receiving channel formed to receive the screw fastening part when the first support part is inserted into the first connection space.;Accordingly, since the horizontal bar and the vertical bar are simply attached to and/or detached from each other, it is easy to install and repair the window/door. Further, since the thickness of the horizontal bar and the vertical bar is able to be minimized, the window/door is light in weight. In addition, the joint of the horizontal bar and the vertical bar is more strongly reinforced by the reinforcing piece(s).