Shutter or blind system end bar is fitted with endstops which retract into bar middle off spring when bar is moved lengthways to permit added raising or lift.

摘要

The bar (10) can be moved lengthways to position the parts (10) carrying the endstops (12) so the endstops are set back towards the middle of the bar. The parts (10) are held in this position by spring (20) and here bear as steps (13) on bar counterparts. The spring (20) body within the bar is intregral to the parts (10) and stepped (13) on the lower edge of the body (11). The ends of the part (10) body (11) within the bar should be rounded off.