| 摘要 |
<p>The jamb has a hollow cross-member (16) with a fixation unit i.e. U-shaped section (42), for maintaining a door check (36) in remote position of a lower wall (26) of the cross-member. The door check has a rotary driving component (38) extending with respect to a pivoting axle (54) of a pivoting casement. The rotary driving component of the door check and the pivoting axle are coupled together by a motorized rotational coupling unit (56) installed between the wall and the door check to allow pivoting of the casement between open and close positions of the jamb.</p> |
