Foldable ladder

A foldable ladder, comprising:

• a first ladder portion;
• a second ladder portion hingedly attached to the first ladder portion, each of the first and second ladder portions comprising:
• a first stile,
• a second stile, the first and second stiles each having a plurality of columns disposed along an axis of the plurality of columns, and
• a plurality of rungs extending between the first stile and the second stile, each rung connected to a column of the plurality of columns of the first stile and a column of the plurality of columns of the second stile,
• a first rung of the plurality of rungs having a front surface and a back surface, the front surface being opposite to the back surface;
• and
• a pair of hinge mechanisms hingedly connecting the first ladder portion to the second ladder portion about a hinge axis, each hinge mechanism adapted to lock the first and second ladder portions such that the first ladder portion and the second ladder portion form an angle therebetween;
• the plurality of columns being disposed in a nested arrangement for relative axial movement in a telescopic fashion such that the ladder is extendable or collapsible along the axis of the plurality of columns,
• wherein, the first rung is connected to a column of the plurality of columns of the first stile by a first connector assembly, the first rung being connected to a column of the plurality of columns of the second stile by a second connector assembly, the first connector assembly and the second connector assembly each having a first release button and a second release button,
• each first release button being slidable along the front surface of the first rung, each second release button being slidable along the back surface of the first rung,
• the sliding of the first release button along the front surface of the first rung and the sliding of the second release button along the back surface of the first rung unlocking or locking the relative axial movement between two adjacent columns of the plurality of columns;
• wherein the first and second release buttons are coupled to a rung pin and a spring, the spring exerting a biasing force against the rung pin to engage the rung pin with a first column and a second column of the plurality of columns to selectively lock relative axial movement between the first column and the second column, the sliding motion of either of the first or second release buttons along the respective front or back surfaces retracting the rung pin to unlock the first and second columns and thereby permit relative axial movement therebetween.