COUPLING STRUCTURE OF SQUARE RAFTER AND EAVES TO RESTRICT SAGGING OF SQUARE RAFTER

摘要

According to the present invention, a coupling structure comprises: a mounting part formed in a flat shape where an upper surface of eaves is partially sunk in an upper end of the eves to allow a square rafter to be mounted with balance; a locking concave part formed in the inside of the mounting part with the same inclination as that of a locking protrusion part to cover an upper part of the locking protrusion part; an auxiliary locking protrusion part formed in a front end part of the eaves with the same inclination as that of an auxiliary locking concave part to cover the auxiliary locking concave part in an upper part; an eaves lead fixation groove capable of allowing a part of an eaves lead to be inserted and fixated; a binding part formed in a lower part inside the square rafter to be attached in an upper part of the mounting part with balance; the locking protrusion part formed in a rear end of the square rafter to be attached to a lower part of the locking concave part; an auxiliary locking concave part formed in a lower part of the square rafter to be attached to the auxiliary locking protrusion part, thereby allowing the eaves and the square rafter to be attached in a shape in which a square rafter cover covers an upper part of the eaves lead; and a steel nail pressed in an upper part of the square rafter to be mutually coupled to the eaves. Accordingly, when a force to forwardly incline the square rafter is received as a load of double eaves is applied to the square rafter, an inner surface of the locking concave part with the same inclination as that of the locking protrusion part is allowed to support an upper surface of the locking protrusion part with the same inclination as that of a shape inwardly inclined more than a rotational radius of the square rafter rotated in an anti-clockwise direction on a font end of the eaves, thereby being able to prevent the square rafter from being inclined.;COPYRIGHT KIPO 2017