Patent ID: 6866119

Claim:
A ladder, comprising: a standing frame comprising two parallel standing side legs; a plurality of step platforms transversely extended between said standing side legs of said standing frame; and a side support enhancement, comprising: two side ground supports each having a ground end and a pivot end pivotally connected to said respective standing side leg of said standing frame; two reinforcing arms pivotally connected to said side ground supports respectively; means for slidably connecting said reinforcing arms with bottom ends of said standing side legs of said standing frame respectively, wherein said reinforcing arms are arranged to respectively drive said side ground supports between said folded position and said unfolded position, wherein at said folded position, said reinforcing arms are slid inwardly to pivotally pull said side ground supports to align with said standing side legs respectively, and at said unfolded position, said reinforcing arms are slid outwardly to pivotally push said side ground supports away from said standing side legs respectively so that said side ground supports are inclinedly and outwardly extended from said standing side legs respectively to increase a safety distance between said ground ends of said side ground supports; and a control member pivotally connected to upper ends of said reinforcing arms for driving said side ground supports between said folded position and said unfolded position.