초록 ▼

The present invention is a joint structure which is particularly adapted for the construction of a frame for windows and doors. The joint structure includes a tenon which is cooperatively connected to a first portion at a mortise which is formed in a second portion. The mortise is positioned and siz

The present invention is a joint structure which is particularly adapted for the construction of a frame for windows and doors. The joint structure includes a tenon which is cooperatively connected to a first portion at a mortise which is formed in a second portion. The mortise is positioned and sized to receive the tenon. A first groove is formed in the tenon and is transverse to the tenon. A second groove is formed in the second portion wherein when the tenon is inserted into the mortise, the second groove is aligned with the first groove to form a dowel cavity. A locking dowel pin is inserted into the dowel cavity and provides a resistance to sheer force along substantially the length of the pin.

대표청구항 ▼

A joint structure for interconnecting first and second portions of a frame for a door or window, comprising: (a) a tenon cooperatively connected to a first portion of the frame; (b) a mortise formed in a second portion of the frame, the mortise position being sized to receive the tenon; (c) a first

A joint structure for interconnecting first and second portions of a frame for a door or window, comprising: (a) a tenon cooperatively connected to a first portion of the frame; (b) a mortise formed in a second portion of the frame, the mortise position being sized to receive the tenon; (c) a first groove formed in the tenon, the first groove being transverse to the tenon; (d) a second groove formed in the second portion, wherein when the tenon is inserted in the mortise, the second groove is aligned with the first groove to form a dowel cavity; and (e) a locking dowel pin for insertion into the dowel cavity, wherein when inserted in the dowel cavity the pin further secures the tenon in the mortise and provides a resistance to a shear force along substantially the length of the pin.