Closure device with a biased roller bolt

摘要

A closure device for securing a flap 1 on an incubator hood 3 to ensure a reliable flap closure. A fixed keeper element 4 is engaged by roller bolt 9 which is mounted about an axis 8 on an element 5 and has a degree of play (1.5-2.0 millimetres) via a slot 18 in a direction normal to its axis. Element 5 is pivoted about an axis 12 to allow the roller 9 to engage over and behind the element 4 against the bias of spring 10 as the flap is closed.