| 摘要 |
A jamb (1) for a door or window in a wall opening of the type where the end portion (4) of one of the joining jamb elements (2a, 2b) is recessed for accepting the cross cut end-portion (5) of the other jamb elements (2a). The jamb (1) comprises stopping ledges (3) for an openable element. The jamb elements (2a, 2b) are further provided with rounded edge-portions (8) and one of the jamb elements (2b), adjacent to the rounded edge-portion (8) of the other jamb element (2a), displays a difference in width relative to the other jamb element (2a) at least equal to the radii of the rounded edge-portions (8) at the narrow faces of the jamb elements (2a, 2b) and at the narrow faces of the stopping ledges (3) facing away from the openable element. |
