| 摘要 |
<p>An insulated dock plate cover (26) is provided which is connected to the door (12) and thus moves automatically to raised and lowered positions as the door is opened and closed. The forward end (30) of the dock plate cover is connected directly to the lower end (32) of the door while the rear end (34) of the cover is connected by cables (36) which are operatively connected to the conventional door cables (42) in turn connected to a motorized overhead drive shaft (24).</p> |
