Patent ID: 7950497

Claim:
A ladder stabilising device comprising: a body including a pair of plates, one being a floor-engaging plate with a front edge and an opposite edge and the other being a joist-engaging plate, the pair of plates being connected together substantially at a right angle with the joist-engaging plate depending from the floor-engaging plate intermediate the front edge and the opposite edge, and whereby the floor-engaging plate front edge defines an abutment edge for a rear face of a ladder having two beams and a plurality of spaced rungs extending between the beams wherein at least one of the plates of the pair of plates includes at least one aperture through which fastening means pass to enable the body to be fastened to an element of a structure prior to insertion of the ladder; and an arm connected to and projecting from said joist-engaging plate and having a projecting portion that projects outwardly and downwardly relative to said abutment edge when the body is engaged with said element of said structure, and further having a detent tab on said projecting portion being substantially parallel to said abutment edge and positioned to engage a beam of said ladder at a position downwardly along the ladder below said abutment edge so that the ladder is able to freely slide in between said detent tab and said abutment edge until engaged by said detent tab and said abutment edge which co-operate to limit outward sliding movement of the heel of the ladder; wherein the detent tab is set relative to the body and thereby to said abutment edge to provide a predetermined initial ladder inclination when the ladder is engaging both the abutment edge and the detent tab.