Abstract: An automatic door bottom drop down seal having an actuator responsive to closing of the door for moving a sealing member vertically downwards into a sealing position relative to the door threshold when the door is closed. The actuator includes a arm connected to a block slidable within a channel of the seal housing. The arm is pivotally connected to the slide block so to pivot downwardly to impart downward pressure on the sealing member.
The invention relates to a drop-down seal for a building part comprising a housing ( 1 ), a sealing strip ( 2, 3 ) that can be raised and lowered in said housing ( 1 ), and a spring-loaded lowering mechanism ( 8 ), which causes automatic lowering of the sealing strip ( 2, 3 ) when the building part is closed. The lowering mechanism ( 8 ) is connected to a slide ( 4, 6 ), which protrudes beyond the housing ( 1 ) at one end and which activates the lowering mechanism ( 8 ) when the building part is closed. The slide ( 4, 5 ) applies a tension to the lowering mechanism ( 8 ). The drop-down seal according to the invention enables a one-sided triggering in tension, wherein the seal has a space-saving design.
Post time: May-01-2021