| 摘要 |
<p>The invention provides a ladder to the lower section (11) of which are fitted two outriggers (29) extending outwardly and forwardly at about 45 for the purpose of enhancing the safety of the ladder in use. Each outrigger (29) has a foot (31), and is capable of being folded up against and parallel to the stile (13) to which it is fitted for storage or transportation. The outriggers (29) are lockable in any desired position by a cam and friction plate mechanism (34). Preferably each stile (13) is provided with an adjustable extension leg (12) controlled by a ratchet and panel arrangement (16) to facilitate use of the ladder on uneven ground.</p> |
