| 摘要 |
A two part window and door assembly includes a sill, head and jambs for the window or door frame and stiles and rails for a window sash. Each of the sill, head, jambs, stiles and rails is formed in two parts, that is, an interior part and an exterior part. A. coupling is used to join together the interior part and the exterior part of each of the sill, head, jambs, stiles and rails. The coupling includes an outrigger formed as an elongated member on one of the interior part and the exterior part. The other of the interior part and the exterior part defines an outrigger receiving slot. The coupling includes a first hook and a second hook. The first and second hooks are disposed on one and the other of the interior part and the exterior part. The outrigger is received by the outrigger receiving slot, and the first and second hooks engage each other to join the interior part and the exterior part together. A locking spline is used to selectively maintain the engagement of the first and second hooks so that the interior part and the exterior part remain joined together.
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