| 摘要 |
<p>A door assembly including a vertically moving door to permit and prohibit access through an opening which has a top, a bottom defined by a floor, and at least two sides, the door assembly. The assembly having a door body having upper and lower portions, and being mounted proximate the opening such that the lower end portion being proximate the floor when the door is in the closed position. A protective body is configured in connection with the door so as to be moveable between a first position under at least a portion of the door body lower portion when the door is in at least a partially open position and a second storage position. The protective body having at least one debris collecting surface, and opposing ends, the protective body being configured such that debris collected on the debris collecting surface will be urged toward one of the opposed ends.</p> |
