Abstract
A davit arm holder (30,50) for a davit arm (11-18) for suspending lines (4) from elevated heights by mounting the davit arm (11-18) on a structural substrate (1). The davit arm holder (30,50) comprises a base (50) formed from one or more planar layers (52) of sheet material adapted to lie parallel to the plane of a surface of the substrate (1), and an attachment (30) adapted to be fixedly attached to the base (50) and to provide a connection (32) to engage a davit arm (11-18). The base (50) includes an outer layer (52) and at least one inner mount (60). The outer layer (52) has a plurality of first engagement portions (70) that are radially spaced from a centre point (54) of the base (50). The at least one inner mount (60) is integrally formed with the outer layer (52), is fixedly securable to the substrate (1) and is adapted to space an inside surface (68) of the outer layer (52) from the substrate (1) to form a gap (66) under the outer layer (52). The base (50) is adapted to have a low-profile when anchored to the substrate (1). The attachment (30) is adapted to be releasably engaged to the base (50) by a plurality of second engagement portions (40) adapted to engage the corresponding plurality of first engagement portions (70) by rotation of the attachment (30) about an axis (56) perpendicular to the plane of the substrate (1).