US 12,454,808 B2 · Rotary ditching attachment for a tool manipulating arm

Abstract

A rotary ditching attachment for an articulated boom of an excavator type machine includes two rotary excavating heads supported in spaced relation on opposite sides of a central support. The heads rotate about a common axis. The rotary ditching attachment is rotatably coupled to the boom by a rotating tool mount. The rotating tool mount is connectable to the central support such that the central support and attached excavating heads are rotatable about an axis extending through the central support and perpendicular to the common axis of the excavator heads. Excavating assemblies are mounted on outwardly facing and inwardly facing surfaces of rotors forming each excavating heads. Rotating the rotary ditching attachment relative to a direction of movement of the rotary ditching tool relative to the ground increases the width of cut of the excavating heads when used to form or rehabilitate a ditch.

Claims22

Dependent claims

A ditching attachment for a tool manipulating arm, the ditching attachment comprising:

first and second excavating heads rotatably mounted in spaced relation on first and second sides of a central support, the first excavating head rotating about a first excavating head axis and the second excavating head rotating about a second excavating head axis;
and
a rotating mount including a first portion, releasably connectable to the manipulating arm and a second portion releasably connectable to the central support, the second portion of the rotating mount, rotatable relative to the first portion about a mount axis extending perpendicular to the first excavating head axis and the second excavating head axis;
wherein the second portion of the rotating mount is selectively rotatable about the mount axis to rotate the first and second excavating heads from a first orientation in which the axes of rotation of the first and second excavating heads extend parallel to a direction of movement of the rotary ditching tool relative to the ground in forming a ditch, to a second orientation in which the axes of rotation of the first and second excavating heads are offset at an acute angle from the direction of movement of the rotary ditching tool relative to ground to increase an excavating width of the first and second excavating heads in the direction of movement of the rotary ditching tool relative to the ground.

1 more element

A ditching attachment for a tool manipulating arm, the ditching attachment comprising:

first and second excavating heads rotatably mounted in spaced relation on first and second sides of a central support, the first excavating head rotating about a first excavating head axis and the second excavating head rotating about a second excavating head axis, wherein each of the first and second excavating heads includes a rotor having a plurality of outwardly projecting excavating assemblies connected to an outer face thereof and a plurality of inwardly projecting excavating assemblies connected to an inner face thereof, wherein the inner face of each rotor faces toward the central support and the outer face of each rotor faces away from the central support, and wherein each outwardly projecting excavating assembly comprises a base plate secured to the outer face of the rotor and extending radially outward relative thereto with an outer edge of the base plate sloping rearward and outward toward an outer edge of the rotor and a plurality of excavating bits connected to and projecting outward from the base plate;
and
a rotating mount including a first portion, releasably connectable to the manipulating arm and a second portion releasably connectable to the central support, the second portion of the rotating mount, rotatable relative to the first portion about a mount axis extending perpendicular to the first excavating head axis and the second excavating head axis.

A ditching attachment for a tool manipulating arm, the ditching attachment comprising:

a rotary ditching tool including first and second excavating heads rotatably mounted in spaced relation on opposite sides of a central support, each excavating head rotating about a common, excavating head axis;
and
a rotating mount including a first portion releasably connectable to the manipulating arm and a second portion releasably connectable to the central support of the rotary ditching tool, the second portion of the rotating mount, rotatable relative to the first portion about a mount axis extending perpendicular to the common, excavating head axis;
wherein
each of the first and second excavating heads includes a rotor having a plurality of outwardly projecting excavating assemblies connected to an outer face thereof and a plurality of inwardly projecting excavating assemblies connected to an inner face thereof, wherein the inner face of each rotor faces toward the central support and the outer face of each rotor faces away from the central support;
wherein the second portion of the rotating mount is selectively rotatable about the mount axis to rotate the first and second excavating heads from a first orientation, in which the axes of rotation of the first and second excavating heads extend parallel to a direction of movement of the rotary ditching tool relative to the ground in forming a ditch, to a second orientation in which the axes of rotation of the first and second excavating heads are offset at an acute angle from the direction of movement of the rotary ditching tool relative to ground to increase an excavating width of the first and second excavating heads in the direction of movement of the rotary ditching tool relative to the ground.

3 more elements

Dependencies are inferred from the claim text.

Rotary ditching attachment for a tool manipulating arm

Life of this patent

Rotary ditching attachment for a tool manipulating arm

Life of this patent

Abstract

Claims22