Patent ID: 8002084

Claim:
A stepladder comprising: a front frame having two front side rails being parallel to each other and each front side rail having a bottom end; and multiple rungs mounted transversely between the front side rails at intervals; a rear frame connected pivotally to the front frame and having two rear side rails corresponding respectively to the front side rails, the two rear side rails being parallel to each other and each rear side rail having a top end mounted pivotally on a corresponding front side rail; and a bottom end; a crossbeam mounted transversely between the rear side rails; and a lock mounted pivotally on the crossbeam and having a hook formed on the lock; a bracket connected pivotally and slidably to the rear frame and having two bars; two pivot slides directly mounted on and respectively slidable with respect to the bars of the bracket and directly mounted pivotally on the crossbeam of the rear frame; and multiple pivot pins mounted transversely and directly between the bars, wherein one of the pivot pins is capable of being hooked by the hook of the lock of the rear frame; and multiple steps pivotally mounted respectively on the pivot pins of the bracket and pivotally mounted respectively on the rungs of the front frame.