| 摘要 |
A corner joint for a window or door frame includes first and second frame members each having a mitered end, at least one cavity in each mitered end and at least one side wall opening into each cavity. A screw boss is disposed in the cavity of the first frame member, and a detent lug on a flexible resilient portion of the screw boss is received in the side wall opening of the first frame member. A corner key has a first leg received in the cavity of the first frame member over the screw boss to hold the screw boss in place, and a second leg received in the cavity of the second frame member. A screw extends through the side wall opening in the second frame member and through the corner key, and is threaded into the screw boss to clamp the mitered ends of the frame members together. A sealing gasket may be captured between the mitered ends of the frame members. |
