Stepladders having good lateral stability comprise a pair of channel members of fixed length pivoted at their top end to the side rails of the front ladder section to swing between a closed position and an extended position. The bottom ends of each channel member carries a foot member which always extends below the bottom end of the front section side rails so that the front section is supported in use of the ladder exclusively upon said foot members and not upon the bottom ends of the side rails.
A ladder includes a standing frame comprising two parallel standing side legs, a plurality of step platforms transversely extended between the standing side legs of the standing frame, and a side support enhancement including two side ground supports each having a ground end and a pivot end pivotally connected to the respective standing side leg, two reinforcing arms pivotally connected to the side ground supports respectively; and two sliding joints for slidably connecting the reinforcing arms with bottom ends of the standing side legs respectively. Therefore, the reinforcing arms are slid inwardly to pivotally pull the side ground supports to align with the standing side legs respectively to form a compact unit and are slid outwardly to pivotally push the side ground supports away from the standing side legs respectively so that the side ground supports are inclindedly and outwardly extended from the standing side legs respectively.
An improved stabilizer assembly for use with stepladders comprises a board member capable of being secured to the top platform of the stepladder; first and second hinges associated with the board member at or near opposing lateral ends of the board member; and first and second support legs associated with first and second hinges, respectively, and being capable of extending from the secured board member to improve the stability of the ladder.
This invention relates to tripodal support structures and more particularly to a three-legged folding step-ladder having outrigger-type support extensions on the two front support legs, a rear support member having a single ground contact point, and independently extendable and retractable safety hand rails. The support legs of the instant invention contact the ground at points spaced apart from one another to form an equilateral triangle when viewed from above.
A ladder stabilizing system having a solid brace (50 or 46) or the combination of side spreaders (24C), the ladder sections (10 and 12), and a diagonal cross brace (18) creating two rigid triangles, the function of which is to prevent the ladder sections from twisting or flexing and therefore make the step ladder or the side braces (70 & 74) of a ladder or step ladder much more stable and will prevent the ladder sections (10 and 22), or extended side braces from twisting or flexing, thereby making the ladder stronger and safer.
