Safety catch for ladder user - has carriage on rolls in C=section rail with stops, top cap and flexible strips covering front slot of rail

摘要

The vertical C-section rail (2) is secured to the ladder and contains a carriage (3) guided on roller pairs running on the two flanges either side of the vertical slot between them. This carriage has a lip (6) extending outward through the slot and having a fixture (7,4) for a belt around the user's waist. The carriage is tippable in the event of a downward force on it to engage one of a number of vertically spaced stops (14) in the web of the rail. The slot is covered by two flexible strips of water and ice-repellent material and the rail is covered by a cap at the top to prevent malfunction due to icing.FL.