| 摘要 |
<p>A cover assembly for sealing a slotted opening about a shaft (46) which moves across the opening; and in particular for sealing an opening in the fuselage of an aircraft which accomodates a movable flap support tube. The closure assembly (30) includes a pair of material sections (32) which cover the opening, and each having a fastener element such as a zipper track (47) or magnetic strips (130) or the like, along its inner edge (48). The fastener elements are joined together by a closure device (49) which includes a pair of spaced apart rollers (50) which engage the tracks and cause them to interlock during movement of the closure device with the support tube (46). Opening of the zipper tracks is caused by a wedge (60) on the closure device which causes the interlocked tracks to separate. The rollers and wedge are mounted on a main plate (54) which is fitted about the movable support tube. In another embodiment there is provided a closure device for separating and joining fastener elements, such as zipper tracks (208) or magnetic strips or the like, by means of a first pair of spaced apart rollers (234) which join the fastener elements when the device is moved in a first direction, and a second pair of opening rollers (240) which separate the fastener elements when the device moves in the opposite direction. In another embodiment, the opening rollers are replaced by a wedge (262).</p> |
