| 摘要 |
<p>Folding door apparatus including a plurality of panels hinged together in accordian fashion are raised and lowered along parallel spaced guide channels by a winding drum and cable; one end of the cable is secured to the winding drum while the other end is fastened to the remotest panel from such drum. In a door open position, the panels are folded and located above the door opening with the panel located closest to the winding drum being stored in an unfolded condition.</p> |
