Hoist mechanism and a stepless adjustment system

A hoist mechanism for loading into or unloading from load carrying space of a vehicle, the hoist mechanism being installable in said vehicle and comprising a lifting arm pivotable about a generally horizontal axis, and a spreader bar releasably attachable to the lifting arm, the spreader bar comprising a hook formation for engaging a corresponding engagement formation of the lifting arm;

• wherein a movable blocking component is provided on the lifting arm to obstruct access to the engagement formation and the movable blocking component comprises a rocker plate biased into engagement with the engagement formation.

A hoist mechanism for loading into or unloading from a load carrying space of a vehicle, the hoist mechanism being installable in said vehicle and comprising a lifting arm pivotable about a generally horizontal axis and pivotally connected via a pivot at an actuator mounting point to an actuator for controlling the inclination of said lifting arm, wherein the lifting arm has, at least in part, a generally U-shaped cross section, wherein the pivot of the actuator mounting point is provided within the generally U-shaped cross section, and wherein the lifting aim is telescopically adjustable in length, and comprises an inner section received within the U-shaped cross section in a telescoping arrangement.