A method of extending a reach of a material mover may include uncoupling and removing a first linkage that couples a work implement to an actuator on the material mover; uncoupling the work implement from one or more lifter arms; securing one or more extensions to each of the one or more lifter arms by (a) fastening, with a first fastener, an extension to a corresponding lifter arm, though a lifter-arm retention aperture, and (b) further securing the extension to the corresponding lifter arm with one or more additional fasteners adjacent the lifter-arm retention aperture and a top edge or bottom edge of an end of the corresponding lifter arm; coupling the work implement to the one or more extensions; and coupling a second linkage, which is longer than the first linkage, to the work implement and to the actuator.

A distance calculation unit calculates a bucket distance that is a distance between a point on a bucket and a target design surface representing a target shape of an excavation target. An intervention control unit calculates an intervention control amount to suppress a speed of work equipment such that the bucket does not intrude on the target design surface based on the bucket distance. An attachment control unit calculates an attachment control amount to rotate the bucket around an attachment axis such that an edge of the bucket and the target design surface approach each other in a parallel state. An attachment limiting unit limits rotation of the bucket around the attachment axis such that the bucket distance is not increased by a movement of the work equipment based on the intervention control amount and the attachment control amount.

Measure-up processes described herein provide data that enable three-dimensional (3D) positioning of a tip of a bucket of an excavator. The processes may include steps of curling a bucket of the excavator in and out, moving a stick of the excavator in and out, and moving the bucket so that it touches a point at different bucket angles. During each of the steps, data is generated using a tilt compensating survey pole and one or more inertial measurement units (IMUs).

A distance calculation unit calculates a first distance that is a distance between a first bucket point being a point on a bucket and a target design surface representing a target shape of an excavation target. The distance calculation unit calculates a second distance that is a distance between the target design surface and a second bucket point. The second bucket point is on the bucket on a straight line passing through the first bucket point and is parallel to an edge of the bucket. A tilt control unit compares the first distance and the second distance to calculate a tilt control amount to rotate the bucket around a tilt axis.

A bucket assembly for use with a piece of construction equipment, the bucket assembly including a bucket including a base wall with a leading edge, where the bucket defines a bucket width, and a bucket frame pivotably coupled to the bucket and configured to be mounted to the piece of construction equipment, where the bucket frame defines a pivot axis about which the bucket pivots relative to the bucket frame over a pre-determined range of motion, where the pivot axis is parallel to the base wall of the bucket and perpendicular to the leading edge of the bucket, and where the pivot axis is centered along the bucket width.

A tilt adjustable head attachment assembly for a clamshell style bucket for orienting first and second bucket halves at an angle relative to a length axis extending through an elongated and rigid attachment associated with a piece of power equipment, for supporting and manipulating the bucket. A frame has a three dimensional body, upwardly extending pillar mounts located at upper ends of the body and incorporating support shafts for receiving overlapping hinged locations associated with support arms for each of the first and second clamshell bucket halves. A platen is positioned pivotally arranged between the pillar mounts and includes an upper location engaged by an end projection of the elongated attachment. A cylinder is connected to a fixed underside location of the frame at a first end and to the platen at a second end and, upon being actuated, pivotally displacing the platen to in turn angle the frame and supported clamshell bucket halves relative to the excavator attachment according to a desired orientation.

The disclosed embodiments relates an arrangement for tilting or turning a tool, the arrangement including at least one actuator for tilting and turning the tool, the actuator including at least a frame part adapted to be closed by a cover, the frame part and the cover enclosing a chamber portion (8) where a blade part having one or more blade gaskets is provided to divide the chamber portion into separate chamber spaces, the blade part being connected, at its first end, to a shaft, the second end of the blade part being adapted move reciprocally in the chamber portion, rotating the shaft at the same time. The joint between the frame part and the cover is sealed by a gasket contacting the blade gaskets.

A joint orientation system is provided for a work vehicle having a chassis and an implement coupled to the chassis at a joint. The joint orientation system includes a first IMU positioned on a first side of the work vehicle relative to the joint and configured to collect a first IMU acceleration and a first IMU angular velocity and a second IMU positioned on a second side relative to the joint and configured to collect a second acceleration and a second angular velocity of the implement. A controller is configured to receive the first and second IMU accelerations and the first and second IMU angular velocities; determine a joint orientation correction based on IMU accelerations and IMU angular velocities; modify an estimate of joint orientation with the joint orientation correction to generate a current joint orientation; and output the current joint orientation for actuation of the implement.

A drive transmission device includes a first member and a second member rotatably coupled about a rotation axis; a drive source generating a rotational force that drives the first member and the second member; speed reducers transmitting the rotational force from the drive source to the second member; at least two bracket portions arranged in the rotation axis direction in the second member; and a flange portion extending in a direction intersecting the rotation axis, having an overlapping region where the flange portion overlaps the bracket portion viewed from a direction along the rotation axis direction, and connecting the speed reducer and the bracket portion. A restricting member that extends in the rotation axis direction and restricts the relative rotational movement between the bracket portion and the flange portion, and a receiving portion that receives the restricting member are provided in the overlapping region.

A skid-steer implement allows for the rotation of a tool attachment relative to the body of the skid-steer by coupling an attaching element and a rotation attachment device with a shaft and force generating devices. The slim construction of the device allows for bucket rotation while limiting the tipping load change caused by the extension of the implement.