The present application relates to a mobile counterweight mechanism of a hoisting machine, comprising a support portion, a drive portion and a counterweight which is articulated to said support portion by means of a first articulation portion, said drive portion connected between said support portion and the counterweight so that said counterweight turns over outwards about said first articulation portion relative to a center of rotation of said hoisting machine, so as to increase a distance between a center of gravity of said counterweight and a center of rotation of said hoisting machine. The present application also relates to a hoisting machine. The present application raises a movement distance of a mobile counterweight and improves the overall stability of a hoisting machine in a turnover manner.

A stabilizer arrangement for mobile apparatus such as an access platform having a chassis with a functional component movably mounted thereon for movement between a rest position and a use position, comprises a stabilizer member movably mounted with respect to the chassis and having a ground-engaging portion, the stabilizer member being movable between a retracted condition in which the ground-engaging portion does not engage the ground and a deployed condition in which the ground-engaging portion engages the ground, the stabilizer member and functional component being mechanically interconnected such that, in use, initial functional movement from the rest position of the functional component relative to the chassis causes movement of the stabilizer member from the retracted condition to the deployed condition.

A stabilizer system in a work machine. The stabilizer system includes a stabilizer pad and a stabilizer arm. The stabilizer pad includes a main body having a lower surface configured for engaging a ground surface of a first type, and may include resilient inserts for resting on hard surfaces such as concrete or asphalt. Wings are rotatably connected to the main body and are rotatable between a position above the main body and a position covering the lower surface. The wings include ground engaging surfaces having ribs configured for engaging ground surfaces of a different type, such as soil or gravel. Locking pins are provided for holding the wings in selected positions.

A stabilizer system in a work machine. The stabilizer system includes a stabilizer pad and a stabilizer arm. The stabilizer pad includes a main body having a lower surface configured for engaging a ground surface of a first type, and may include resilient inserts for resting on hard surfaces such as concrete or asphalt. Wings are rotatably connected to the main body and are rotatable between a position above the main body and a position covering the lower surface. The wings include ground engaging surfaces having ribs configured for engaging ground surfaces of a different type, such as soil or gravel. Locking pins are provided for holding the wings in selected positions.

Mobile plant stabiliser (2) including an extendible leg (4) and a load distributing foot (12) connected to the extendible leg (4), wherein the foot (12) includes a primary part (14) and an extension part (18) connected to the primary part (14) by a hinge (20) enabling the extension part (18) to rotate relative to the primary part (14) to and from a deployed position in which the extension part (18) extends laterally outwardly from the primary part (14).

Mobile plant stabiliser (2) including an extendible leg (4) and a load distributing foot (12) connected to the extendible leg (4), wherein the foot (12) includes a primary part (14) and an extension part (18) connected to the primary part (14) by a hinge (20) enabling the extension part (18) to rotate relative to the primary part (14) to and from a deployed position in which the extension part (18) extends laterally outwardly from the primary part (14).

A crane mat having first and second side beams or boards; a core structure made of pine or other softwoods, eucalyptus, solid plastic or elastomeric members, or hollow thermoplastic, thermosetting plastic or elastomeric members that optionally include a filler or internal reinforcing structure; external components including an upper and/or lower layers of one or more elongated members to protect the core structure, and a plurality of joining members that attach the outer side members to the core structure. Another crane mat can be made of just the solid plastic or elastomeric members, or hollow thermoplastic, thermosetting plastic or elastomeric members that each include a plurality of spaced lateral apertures passing therethrough; and joining members that include a rod that passes through the aligned lateral apertures to hold the members together in the mat. These crane mats may also include lifting elements of the types described herein.

A container trailer crane has an apparatus that includes a base, a crane arm, an outrigger, and a mechanical ram that is used in both positioning the outrigger and the crane arm.

A container trailer crane has an apparatus that includes a base, a crane arm, an outrigger, and a mechanical ram that is used in both positioning the outrigger and the crane arm.

A system and method for visually monitoring an outrigger includes a camera assembly configured to monitor an outrigger and a control system operably and communicably connected to the camera assembly. The control system executes instructions to determine a presence, length, and/or position of the outrigger based by an image captured by the camera assembly. The outrigger may include a target to be detected by the camera assembly for monitoring of the outrigger. The target may be the outrigger itself, detected by the control system using edge detection, or a marker disposed on the outrigger. The system may be implemented with a crane having a carrier unit and a superstructure. The system may include a plurality of camera assemblies and a plurality of outriggers.