A hinge bracket assembly comprising: an anchor plate including a retention member extending perpendicular to the anchor plate , wherein the anchor plate defines a first receiving aperture , the anchor plate further including a stop extending from it; a hinge plate aligned with the anchor plate and including a hinge arm and a protrusion , the protrusion extending from an edge of the hinge plate opposite the hinge arm , wherein the hinge plate defines a second receiving aperture aligned with the first receiving aperture when the protrusion is received by a space defined by the retention member ; and a locking arm rotatable between an unlocked position and a locked position and configured to be at least partially received by the first and second receiving apertures to couple the anchor plate and the hinge plate , wherein the locking arm includes a first portion configured to be at least partially received by the first and second receiving apertures , and a second portion configured to abut the stop extending from the anchor plate when the locking arm is in the locked position, whereby: - the hinge plate defines a notch , - the stop is received by the notch when the hinge plate is coupled with the anchor plate , - the hinge plate includes a generally rounded protuberance extending from an upper surface of the hinge plate and - the second portion of the locking arm abuts the protuberance and the stop when the locking arm is in the locked position. an anchor plate including a retention member extending perpendicular to the anchor plate , wherein the anchor plate defines a first receiving aperture , the anchor plate further including a stop extending from it; a hinge plate aligned with the anchor plate and including a hinge arm and a protrusion , the protrusion extending from an edge of the hinge plate opposite the hinge arm , wherein the hinge plate defines a second receiving aperture aligned with the first receiving aperture when the protrusion is received by a space defined by the retention member ; and a locking arm rotatable between an unlocked position and a locked position and configured to be at least partially received by the first and second receiving apertures to couple the anchor plate and the hinge plate , wherein the locking arm includes a first portion configured to be at least partially received by the first and second receiving apertures , and a second portion configured to abut the stop extending from the anchor plate when the locking arm is in the locked position, whereby: - the hinge plate defines a notch , - the stop is received by the notch when the hinge plate is coupled with the anchor plate , - the hinge plate includes a generally rounded protuberance extending from an upper surface of the hinge plate and - the second portion of the locking arm abuts the protuberance and the stop when the locking arm is in the locked position. - the hinge plate defines a notch , - the stop is received by the notch when the hinge plate is coupled with the anchor plate , - the hinge plate includes a generally rounded protuberance extending from an upper surface of the hinge plate and - the second portion of the locking arm abuts the protuberance and the stop when the locking arm is in the locked position. <EOS>