摘要:
A load wheel assembly for a pallet truck includes a first load arm that rotates about an axis of rotation, and a load wheel rotationally coupled to an end of the first load arm opposite from the axis of rotation. The load wheel supports a fork at an elevation above the load wheel. Additionally, the load wheel assembly includes a second load arm pivotally coupled to the first load arm at the axis of rotation and forming a load arm angle, and an adjustment mechanism further coupling the second load arm to the first load arm. The adjustment mechanism varies the load arm angle formed between the first load arm and the second load arm to adjust the elevation of the fork above the load wheel.
摘要:
A lift device includes a chassis, a lift boom, a sensor, and a controller. The chassis includes a frame, an axle pivotally coupled to the frame, and an actuator positioned to move the axle. The lift boom is rotatably coupled to the chassis and operable within a work envelope, and the sensor is positioned to monitor an orientation of the lift boom. The controller is configured to engage the actuator based on the orientation of the lift boom. Engagement of the actuator moves the axle to adjust the work envelope of the lift boom.
摘要:
A lift truck includes a frame, a pair of laterally spaced apart outriggers extending from the frame, and a load handling assembly secured to the frame adjacent to the outriggers. The load handling assembly includes a mast assembly positioned between the outriggers and a carriage assembly including fork structure for supporting a load on the load handling assembly. The carriage assembly is movable vertically along the mast assembly and laterally with respect to the mast assembly. Optical sensor structure of the truck monitors for conditions wherein movement of the carriage assembly would result in contact between the load and the outrigger(s). A vehicle controller receives a signal from the optical sensor structure and prevents movement of the carriage assembly toward the outrigger(s) if the signal from the optical sensor structure indicates that such movement would result in contact between the load and the outrigger(s).
摘要:
A lift truck comprises a chassis (1) movable on wheels (2) and a rotating platform (3) which supports an operating arm (4); stabilizing means are provided for resting on the ground and positioned at the front as well as at the back. The stabilizing means consist of two pairs of two telescopically extensible arms (5), each one comprising a first segment (6) and a second segment (7). The arms (5) have their ends hinged to opposite sides of the chassis (1), so as to swivel about parallel axes, and have the opposite free ends intended to lean against the ground by means of plates or stabilizing feet (8). The two arms (5) of each pair are arranged side by side at a short distance from each other on parallel planes and are individually bound to the chassis (1) by means of hydraulic cylinders (11). Control means are provided to control at least the return movements of each pair of arms (5) to a folded, contracted configuration, according to a predetermined sequence which provides that, for each single arm (5), full retraction of a respective second segment (7), at least for a predetermined portion of the final part of its return stroke, is carried out only after that the first segment (6) of the other arm (5), belonging to the same said pair of arms (5), has reached a final folding position.
摘要:
A lateral stability system for a telescopic handler (1), whose telescopic boom (11) is fitted with equipment (12) suitable for lateral translation of a load (10), comprising a processing unit which includes at least a first enabling module, configured to enable or inhibit movements of said boom (11), according to one or more safety parameters.The system comprises first sensing means for determining the position of the load (10) relative to a center plane (M) of said equipment (12), connected to the processing unit, wherein a first safety parameter is a function of a value of an imbalance signal produced by the first sensing means.
摘要:
A method for determining the probability a handling truck tipping over includes determining a respective normal force acting in the z direction for at least two of at least three wheels of the handling truck. At least two normal forces are compared and the probability of the tipping of the handling truck is determined on the basis of the comparison.
摘要:
A method for determining the probability a handling truck tipping over includes determining a respective normal force acting in the z direction for at least two of at least three wheels of the handling truck. At least two normal forces are compared and the probability of the tipping of the handling truck is determined on the basis of the comparison.
摘要:
A load-carrying vehicle having a vertically adjustable lifting device for picking up a load, and an acceleration sensor system for measuring the acceleration in at least one direction of movement and having a sensor for ascertaining the picked-up load and having a sensor for ascertaining the lift height of the lifting device are described. Control signals for adjusting at least one power unit in the vehicle which influence the driving condition are generated in a regulating and control unit. The acceleration sensor system is situated on the lifting device.
摘要:
A lift truck includes systems and methods for improved vibration control. Vibration control features reduce or eliminate motion of the truck in one or more of the X-axis, Y-axis, and Z-axis. Some embodiments may include, alone or in combination with the vibration control, stability control to further stabilize the motion of the truck.
摘要:
An apparatus and method are provided for improving stability in a lifting vehicle, such as a fork-lift, by operatively attaching one or more wheels of the vehicle to a chassis of the vehicle in such a manner that a steering axis of the wheel may be selectively moved between a narrow track orientation thereof and a wide track orientation thereof, while the wheel remains in rolling contact with a surface supporting the lifting vehicle.