Pivoting snow-clearing trailer (1) intended to be towed by a towing vehicle (3) with a towing hitch (4), comprising: a chassis (5) extending longitudinally in a chassis direction (I-I) between a chassis anterior end (5a) and a chassis posterior end (5b), and developing transversely between a chassis first side (5c) and a chassis second side (5d) which are opposite one another, a snow-clearing blade (6) borne along the chassis first side (5c).

Detection means (10) are able to generate a presence signal when the snow-clearing trailer (1) is pivoted and when an object or an individual is stationed in an area (A1) to the side and/or an area (A2) to the rear of the chassis second side (5d).

Snow-clearing trailer (1) having a chassis (5) extending longitudinally in a chassis direction (I-I) and having a drawbar (9). Pivoting means (11) allow the selective pivoting movement of the chassis (5) and the drawbar (9) with respect to one another. A drawbar locking bar (12) of fixed length can be attached to the drawbar (9) and to the chassis (5) so as to immobilize the drawbar (9) on the chassis (5) in a transport position.

Detection means (13) generate an attachment signal when the drawbar locking bar (12) is attached to the drawbar (9) and to the chassis (5). The detection means (13) and disabling means are arranged in such a way that when the detection means (13) generate an attachment signal, the disabling means prevent any actuation of the pivoting means (11).

The device includes two opposing lateral wings forming the right and left sides of the scraping device. Each wing includes an upper section through which the wing is attached to the central support about a vertical pivot axis, and a bottom section that is pivotable with respect to the upper section about a first horizontal pivot axis. Each wing can follow the unevenness of the roadway surface and may also include parts that can pivot backwards in case of a frontal impact with an obstacle. The scraping device offers a very high degree of versatility and can clean various kinds of roadway surfaces with an unprecedented level of efficiency.

In some implementations, coupling system for rotatably coupling a moldboard of a snow wing assembly includes a hinge for rotatably coupling the moldboard to a linkage assembly to enable the moldboard to rotate in a first rotational direction, the hinge including a plate having a first face and a second face. The plate includes a first passageway extending between the first face and the second face to facilitate lubricant being supplied to a first interface between the plate and the moldboard. The coupling system may include a pin extending through the moldboard and the plate to rotatably couple the moldboard with the hinge. The pin enables the moldboard to rotate in a second rotational direction about a rotational axis defined by a body of the pin, and the body includes a second passageway extending from a bottom portion of the pin to an outer surface of the pin.

In some implementations, a lift assembly for a moldboard of a snow wing assembly of a motor grader may include a first lifting mechanism mechanically coupled to an undercarriage assembly of the motor grader. The first lifting mechanism may be configured to lift the moldboard of the snow wing assembly a first portion of a bench height associated with the moldboard. The lift assembly may include a second lifting mechanism mechanically coupled to the first lifting mechanism and the moldboard. The second lifting mechanism may be configured to lift the moldboard of the snow wing assembly a second portion of the bench height associated with the moldboard.

In some implementations a lift assembly for a snow wing assembly may include a first lifting mechanism, coupled to the motor grader, configured to lift the snow wing assembly a first portion of a bench height associated with a moldboard via a first hydraulic cylinder. The lift assembly may include a second lifting mechanism, coupled to the first lifting mechanism and the moldboard, configured to lift the moldboard of the snow wing assembly a second portion of the bench height via a second hydraulic cylinder. The lift assembly may include one or more valves included in a hydraulic circuit of the first hydraulic cylinder and the second hydraulic cylinder, configured to divert a flow of hydraulic fluid in the hydraulic circuit away from a first stage hydraulic cylinder and to a second stage hydraulic cylinder, based on a pressure value associated with the first stage hydraulic cylinder.

A snow plow having a wing that is rotatably coupled to a side of a primary plow, and configured to rotate about a first axis substantially parallel to the side of the primary plow. A portion of the wing is operable to rotate about a second axis that is non-parallel to the first axis, where the portion is operable to rotate upward about the second axis relative to the ground in response to the wing encountering an obstruction. A snow plow having a receiver coupled to a surface of the primary plow and an actuator coupled to the receiver. The receiver allows the snow plow to move proximally and distally with respect to a vehicle.

A snow plow having a wing that is rotatably coupled to a side of a primary plow, and configured to rotate about a first axis substantially parallel to the side of the primary plow. A portion of the wing is operable to rotate about a second axis that is non-parallel to the first axis, where the portion is operable to rotate upward about the second axis relative to the ground in response to the wing encountering an obstruction. A snow plow having a receiver coupled to a surface of the primary plow and an actuator coupled to the receiver. The receiver allows the snow plow to move proximally and distally with respect to a vehicle.

A snowplow is presented and comprises a frame configured to be attached to a vehicle with a vehicle attachment for pushing the snowplow in a longitudinal direction, a main blade connected to a forward portion of the frame, the main blade including radius of curvature and at least one cutting blade disposed at a bottom portion of the main blade in a ground-contacting configuration disposed in a positive rake angle in substantial continuity with the radius of curvature of the main blade, the at least one cutting blade being pivotable about a pivot axis, wherein the pivot axis is located in front the main blade in an horizontal and transversal direction

A mounting bracket and method for mounting a push arm to a wing plow. The mounting bracket can include a clevis portion, a backstop, and a mounting flange. The mounting flange can have a first mounting flange hole, a second mounting flange hole, and a third mounting flange hole. The mounting bracket can be configured to be mountable to the wing plow in a first orientation using the first and second mounting flange holes and can be mountable to the plow in a second orientation, using the second and third mounting hole. The second orientation can be rotationally offset from the first orientation about at least one rotational axis.