A mobile telescopic crane has a telescopic jib with at least three part-jibs. Each of the part-jibs is constructed from at least two part-jib portions so as to be telescopic in a longitudinal direction. Part-jib portions arranged at a spacing from one another transverse to the longitudinal direction each form a jib portion with at least one flexurally rigid connecting element. Respective adjacent jib portions are mechanically lockable with respect to one another in the longitudinal direction. A construction of this type of the jib means that an increase in the bearing load is easily achieved by increasing the area moment of inertia of the jib.

The present disclosure is directed towards a wear pad for a telehandler. A pad body extends across a thickness between opposing sliding and mount surfaces. The sliding surface is configured for a sliding boom section to slide therealong. A wire conductor extends through the thickness of the pad body at a wear depth from the sliding surface. When the sliding boom section wears down the thickness of the pad body by the wear depth to contact the at least one wire conductor, the wire conductor conducts an electrical current from a power source to the sliding boom section. Also disclosed is a wear pad arrangement with a wear monitoring system, a telehandler with such an arrangement and a method of monitoring a wear pad of a telehandler.

A construction vehicle includes a telescoping boom assembly that includes a first section and at least a second section configured to nest within and to extend from the first section. At least one wear pad is positioned between the first section and the second section. The wear pad includes a length, a first surface, and a second surface spaced apart a height from the first surface. A first portion of the wear pad includes a first bending stiffness. The wear pad also includes a second portion having a second bending stiffness, wherein the second bending stiffness is different than the first bending stiffness. Optionally, the height of the wear pad between the first surface and the second surface is substantially the same in the first portion and the second portion. Optionally, the construction vehicle is a crane.

A telescopic side arm for a refuse vehicle has an inner and outer boom. A mounting assembly secures the outer boom with a refuse vehicle. A plurality of bearing pads is positioned between the inner and outer booms to provide smooth movement between the inner and outer booms. A plurality of shims is associated with the bearing pads to assure a tight fit between the inner and outer booms.

The disclosure relates to an assembly head for a telescopic boom that can be separated into an inner and an outer boom set and that is reversibly mountable at an inner telescopic section of the outer boom set. The assembly head comprises a pulley head having deflection pulleys and a telescopic tube section that is arranged the pulley head, that can be pushed into the inner telescopic section from its end, and that has a substantially smaller length than the inner telescopic section. The disclosure further relates to a separable telescopic boom having an assembly head in accordance with the disclosure, to a mobile crane having a telescopic boom in accordance with the disclosure, and to a method for the self-assembly of an assembly head in accordance with the disclosure at the outer boom set of a telescopic boom.

Extendable lattice type crane boom (2) for a crane (1), the boom comprising a lattice type base boom section (2a) and at least one lattice type telescopic boom section (2b), wherein the at least one telescopic boom section is adjustable with respect to the base boom section between a retracted position, in which the telescopic boom section is substantially inside of the base boom section, and an extended position, in which the telescopic boom section is at least partly outside of the base boom section, wherein a distal end of the base boom section to which a first guiding system (21) is mounted, the guiding system being configured to guide a movement of the telescopic boom section along the base boom section; wherein a proximal end of the telescopic boom section comprises a second guiding system (30) configured to guide a movement of the telescopic boom section along the base boom section.

A telescopic boom for a working device, in particular a crane or mobile crane, includes at least three telescopic sections. A first telescopic section is arranged at least partially around a second telescopic section, and the second telescopic section is arranged at least partially around a third telescopic section. A drive device is provided for telescopically retracting and/or extending the second telescopic section relative to the first telescopic section, and a synchronizing device is configured to allow the third telescopic section to be telescopable relative to the second telescopic section, in particular synchronously. The synchronizing device is arranged substantially completely within the second telescopic section.

A lightweight and high-rigidity telescopic boom in which strain during manufacturing is suppressed is disclosed. In a telescopic boom, a plurality of booms forms a telescope structure, and the telescopic boom includes a boom fixing mechanism that fixes a top boom disposed relatively inside at a predetermined position with respect to a first intermediate boom disposed relatively outside. The boom fixing mechanism includes a boom fixing pin that is provided to the top boom and advances and retreats with respect to the first intermediate boom, a fixing boss that is provided to the first intermediate boom and into which the boom fixing pin is inserted and extracted, and a gap maintaining member that is provided to the fixing boss and protrudes outward to maintain a gap between the first intermediate boom and a second intermediate boom disposed further outside.

A wear element is for placement between a first element of a telescopic assembly and a second element of a telescopic assembly. The second element is configured to slide relative to the first element. The wear element comprises: a first surface comprising an attachment portion for attachment via an attachment feature to the first element of the telescopic assembly; a second surface parallel to the first surface for abutting the second element of the telescopic assembly; and a magnetic element located between the first surface and the second surface at a location fixed relative to the attachment portion. In use, with the wear element located between the first element and the second element: in an event that the attachment portion is proximate the attachment feature of the telescopic assembly, the magnetic element is proximate a magnetic sensor located in the first element of the telescopic assembly; and in an event that the attachment portion moves away from the attachment feature of the telescopic assembly, the magnetic element moves away from the magnetic sensor.

Wear pad assembly for an extendable boom having a first boom section and a second boom section. The wear pad assembly comprises an anchor for mounting to the first boom section. The anchor comprises a pin extending between a first end and a second end along a longitudinal axis. The anchor further comprises a connecting portion extending outwardly from the first end of the pin in a plane perpendicular to the longitudinal axis, the connecting portion comprising a connecting aperture. The wear pad assembly further comprises a wear pad having a thickness extending between a coupling surface and an opposing sliding surface, the coupling surface comprising a recess for engagement with the pin of the anchor (30). The wear pad assembly comprises an adjuster for adjusting the position of the wear pad along the pin in a direction parallel to the longitudinal axis, the adjuster having a contact end that is inserted through the connecting aperture and contacts the coupling surface of the wear pad.