Securing system for a trailer

A securing system for securing an item of plant machinery having a dozer blade to a trailer comprising:

• a static retainer disposed in a forward region of the trailer, the static retainer comprising hook members located in a forward region of the trailer, wherein:
• the hook members comprise a first hook member and a second hook member separate from the first hook member;
• the first hook member is proximate a first side of the trailer and the second hook member is proximate a second side of the trailer opposite the first side;
• each of the hook members includes:
• an upright support post extending vertically from a floor of the trailer;
• a horizontal projection extending from an upper end of the upright support post towards a rear of the trailer;
• and
• an angled hook portion extending from the horizontal projection towards the floor of the trailer, such that:
• a tip of the angled hook portion is located closer to the floor of the trailer than the horizontal portion;
• a space below the horizontal portion and the angled hook portion of each of the hook members is open to the floor of the trailer, such that each of the hook members is configured to accommodate dozer blades of different heights;
• wherein the static retainer is configured to engage with the dozer blade of the item of plant machinery by:
• the plant machinery driving onto the floor of the trailer in a forwards direction with the dozer blade forwards of the undercarriage and with the dozer blade in a first lowered position relative to the undercarriage;
• the plant machinery moving the dozer blade into a second, raised position relative to the undercarriage, such that:
• the dozer blade engages with the horizontal projection of the first hook member and the horizontal projection of the second member to:
• restrict movement of the plant machinery in forward and rearward directions via the angled hook portion and the support post of each of the hook members;
• and
• restrict movement of the dozer blade in upwards and downwards directions by the floor of the trailer and the horizontal projection of each of the hook members.

A support structure for an excavator attachment on a trailer, the support structure comprising:

• a platform having an upper surface on which a load may be supported in use;
• means for securing the platform to a part of a trailer adjacent a bed of the trailer;
• and
• a projection extending over the platform and being spaced from the platform such that a part of a load being supported by the platform disposed between the platform and the projection to limit movement of the load in a direction substantially perpendicular to a plane of the platform,
• wherein the projection comprises a sloped lower wall and a sloped upper wall, the sloped lower wall having a distance between a first part of the projection and an edge region of the platform being smaller than a distance between a second part of the projection and a central region of the platform, and the upper wall and the lower wall converging such that the projection further comprises a pair of generally triangular side walls extending between the upper wall and the lower wall.