A vehicle includes a chassis, a front axle coupled to a front end of the chassis, a rear axle coupled to a rear end of the chassis, a pair of front downriggers coupled to the front end of the chassis forward of the front axle, a pair of rear downriggers coupled to the rear end of the chassis rearward of the rear axle, and an outrigger assembly coupled to the chassis between the front axle and the rear axle. The pair of front downriggers is selectively extendable to engage a ground surface. The pair of rear downriggers is selectively extendable to engage the ground surface. The outrigger assembly includes a pair of outriggers that are selectively extendable laterally outward at an angle relative to a horizontal.

A power winch equipment crane system to be used with a tractor roll bar, the system including a winch support bar configured to be generally U-shaped having two side portions and a middle portion connecting the two side portions, a power winch attached to the winch support bar proximate a midpoint of the middle portion of the winch support bar, and hinge members provided respectively proximate each end of the winch support bar and configured to couple the winch support bar to the tractor roll bar in a pivoting arrangement, the hinge members configured such that the winch support bar is pivotable between a substantially vertical position when not in use, and a substantially horizontal position in which the power winch is positioned at a point spaced back from the tractor so as to be located over an implement that is attachable to the tractor.

A tracked vehicle includes a pilot control module which enables the pilot to steer the tracked vehicle using an existing joystick of the tracked vehicle. The tracked vehicle also includes a dual track drive pedal which drives the tracks of the vehicle simultaneously. The joystick is used to make steering corrections when utilizing the dual track drive pedal.

A power winch equipment crane system to be used with a tractor roll bar, the system including a winch support bar configured to be generally U-shaped having two side portions and a middle portion connecting the two side portions, a power winch attached to the winch support bar proximate a midpoint of the middle portion of the winch support bar, and hinge members provided respectively proximate each end of the winch support bar and configured to couple the winch support bar to the tractor roll bar in a pivoting arrangement, the hinge members configured such that the winch support bar is pivotable between a substantially vertical position when not in use, and a substantially horizontal position in which the power winch is positioned at a point spaced back from the tractor so as to be located over an implement that is attachable to the tractor.

There is provided a crane including: a telescopic boom having an inner boom element and an outer boom element; a telescoping actuator that displaces the inner boom element or the outer boom element in the telescoping direction; a first coupling member that releasably couples the telescoping actuator to one of the boom elements; a second coupling member that releasably couples the pair of boom elements to each other; an electric drive source provided at the telescoping actuator; a first coupling mechanism that displaces the first coupling member or the second coupling member on the basis of motive power of the electric drive source, thereby switching a coupled state and a non-coupled state of the members that are releasably coupled by one of the coupling members; and a position information detection device that detects information relating to the position of one of the coupling members on the basis of output from the electric drive source.

A lifter assembly includes a base having a top and a bottom surface. Connectors are attached to the base extending outwardly from the bottom surface. Each of the connectors includes at least one rail wheel rotatably attached thereto. The base includes traveling wheels rotatably attached thereto. A post is attached to the base extending outwardly from the top surface to a distal end. An arm is disposed on the distal end, rotatably attached to the post, extending outwardly to a terminal end. A support is movably attached to the arm and extends outwardly to a support end. A trolley is slidably disposed on the arm and movable along the arm between the terminal end and the post. Each of the traveling wheels includes a leg pivotably attached to the base connecting the traveling wheel to the base and move the traveling wheel between a transport and a storage position.

A pin actuator assembly for a telescoping boom includes a locking head having a base, an operating plate operably coupled to the base, one or more cylinder pins and/or one or more section lock arms movable in response to movement of the operating plate relative to the base. The pin actuator assembly also includes an actuator operably coupled to the operating plate and configured to move the operating plate relative to the base. The actuator includes an electric motor and a drive arm. The electric motor is configured to drive the drive arm between an extended drive arm position and a retracted drive arm position. The pin actuator assembly further includes a motion mitigator having a housing, a rod movable relative to the housing and operably coupled to the actuator, a first biasing member coupled between the rod and the housing and a second biasing member coupled between the rod and the housing.

A crane includes a lower traveling body, an upper turning body that is turnably provided on the lower traveling body, a counterweight that is mounted on the upper turning body, and a ladder for getting on and off the upper turning body. The ladder has an engagement member that is able to be engaged with and disengaged from an engaged portion provided at the upper turning body, a support portion that supports the engagement member, and a following mechanism that is interposed between the engagement member and the support portion. When the engaged portion in a state of being engaged with the engagement member is moved downward with work of mounting the counterweight, the following mechanism causes the engagement member to follow downward movement of the engaged portion.

The present disclosure relates to a vehicle frame for a mobile crane having a frame, in particular having a middle frame part that extends in the longitudinal vehicle direction, and having at least one sliding beam box for a support apparatus that is releasably bolted to a front-face rear end of the frame, wherein the bolting between the frame and the sliding beam box comprises at least two pins extending in the longitudinal vehicle direction and at least two pins extending transversely to the vehicle direction.

The invention relates to a mobile crane travel gear axle with suspensions, which are independent of one another, of the wheel carriers arranged on both sides of the travel gear frame of the mobile crane, wherein the suspensions each have at least one transverse link which couples the wheel carrier to the travel gear frame and which is connected to the travel gear frame so as to be rotatable about an axis extending substantially parallel to the longitudinal axis of the travel gear frame.