The present invention concerns a plow assembly in accordance with the claims.

Background of the Invention Devices for plowing and moving snow and the like have over many years been developed in great many types (variants) and designs. For example, different types of plows, grader (plow) blades, side (plow) wings and the like have been developed for the mentioned purpose.

In order to plow a width wider than the width of the plow or grader blade (vehicle's), wings and similar designs suitable for connection to either the vehicle, the plow or both to the vehicle and also the plow have been developed. Side wings are usually designed to fold in or fold out in relation to the vehicle's side. Alternatively, the wing is connected to the end of the plow or grader blade with some type of pivoting design. This makes it possible to adjust the width of the plow by adjusting the angle of the wing relative to the plow or grader blade.

A problem in conjunction with plowing snow is being able to steer and move the snow as well as sometimes collecting the snow during the snow removal process. For example, there is a need to collect (gather up) snow at intersections and the like and move it from the intersection with the intention of eliminating strands of snow from occurring at the intersection. To enable the collection of snow, grader blades (plows) with different wing designs have been developed where the wings are pivotable/maneuverable around an axis of rotation at the end of the grader blade. With these plow designs, it is usually possible to turn the blade up to an angle at least 100 degrees in relation to the grader blade (plow). Said design allows for an improved function for collecting snow as well as an improved ability to steer where the snow is to be moved during the plowing process. However, this design suffers from a number of problems. One problem with said wing designs is that the wing is rotated around a fixed axis of rotation relative to the plow, grader blade or the like. This means that the corner of the free end of the wing, which during plowing rests against the ground, will develop a circular arc-shaped (arcuate) motion, where the position of the wing's right edge and corners relative to the lateral direction of the vehicle, will vary during the turning motion. For example, the circular arc-shaped motion of the free end causes problems in connection with the plowing of roads and the like where objects exist that the wing at turning can collide against. The result of plowing may also be substandard because the motion pattern of the wing is arcuate. A further problem with existing designs of plows (plow blades, grader blades) and the like is the plows' collision and impact safety. Existing types of oblique plows run a serious risk of damage from collisions. With the said problem in consideration, there is thus a need for improved crash safety for plow designs.

Prior Art Different variants of wing designs are disclosed in SE458861, US5819444 and US5638618 which can be swung in and out in relation to the side of a vehicle. These designs in

accordance with their descriptions differ significantly in relation to the design in accordance with the present invention. For example, the free ends of the wing designs, according to their descriptions, move in a circular arc shape when the wings are swung. None of these designs according to their descriptions solve similar problems that the design in accordance with the present invention solves.

A variant of a plow equipped with two side wings is disclosed in SE513718. The wings in the disclosed plow design of SE513718 are connected to the ends of the plow. This design differs, however, to a significant extent in relation to the present invention. For example, the wings are swung on, in relation to the intermediate blade, a fixed axis of rotation which causes the free edge of each respective wing during the swinging (turning) motion to execute an arcuate (circular arc-shape) movement, consequently causing the aforementioned problems.

A variant of a plow blade which at its first end is provided with a first wing and at its other end is provided with a second wing is disclosed in US8499477. Each respective wing is pivotally arranged relative to the plow blade. However, this design differs significantly in relation to the present invention because the wings are swung on a fixed axis of rotation and that each respective free end of the wings will thereby perform a circular arc-shaped (arcuate) motion upon swinging.

A variant of a wing rotation (swing, pivot) mechanism for a side wing included in a wing assembly is described in SE533373. The rotation mechanism uses two actuators connected in series, one being pivotally arranged on the frame and the other on the rotating wing. The actuators are connected to each other via a separate transmission arm. The design does not allow the right corner of the wing to move linearly or parallel to the direction of travel. Thus, this design differs to a significant extent from the design in accordance with the present invention. A variant of a grader blade assembly which includes a grader blade and a first wing, and a second wing are disclosed in US6877258. The first wing and second wing are respectively connected to the grader blade by means of at least one first link arm and at least one second link arm. This design allows for movement of the first wing and the second wing parallel to the longitudinal direction of the grader blade. This design makes it possible to increase or decrease the width of the plowing surface. This design differs to a significant extent from the design in accordance with the present invention. For example, the included first wing and the other included second wing are not mutually rotated to a significant extent when they are maneuvered.

A rotation (pivot) mechanism comprised of a first section and a second section which are mutually pivotably arranged with each other is disclosed in US2006002828. This design differs significantly in relation to the design according to the present invention. For example, the design according to US20060042810 does not consist of a plow design but of a grader blade intended for use connected to a road (motor) grader.

A rotation (pivot) mechanism comprised of a first part and a second part which are mutually pivotably arranged with each other is disclosed in US2010044062. The design differs to a significant extent from the design in accordance with the present invention. For example, the design according to US2010044062 is not a plow design in accordance with the present invention.

Purpose of the Invention The purpose of the present invention is to eliminate or substantially reduce at least one of the aforesaid or in the following description said problems with existing types of wing designs. This purpose is achieved by an invention according to the claims.

Brief Description of the Drawings

The present invention will be described in greater detail below with reference to the accompanying schematic drawings that in an exemplifying purpose show the current preferred embodiments of the invention. The invention will be described in greater detail below with reference to the accompanying schematic drawings that in an exemplifying purpose show the current preferred embodiments of the invention.

Fig. 1 shows schematically a vehicle equipped with the plow assembly as seen from above. Fig. 2 A shows an exemplifying plow assembly without a steering device.

Figs. 2 B and 2 C show the exemplifying plow assembly's first plow section and second plow section equipped with a glide rail.

Fig. 2 D shows an exemplifying plow console with a rotating plate and connected glide rails.

Fig. 2 E shows a cross-section of connected glide rails of an exemplifying embodiment. Fig. 2 F shows a cross-section of an exemplifying rotating mechanism.

Figs. 2 G to 2 I show in detail plow sections with cooperating shapes.

Fig. 3 shows principally a plow assembly equipped with a rotating mechanism, without a steering device present, in accordance with the present invention.

Figs. 4 A and 4 B show two variants of a first embodiment of a steering device for the rotating mechanism in accordance with the present invention.

Fig. 5 shows a second embodiment of a steering device for the rotating mechanism in accordance with the present invention.

Fig. 6 shows a third embodiment of a steering device for the rotating mechanism in accordance with the present invention. Fig. 7 shows a plow assembly in accordance with an alternative embodiment with increased collision safety in conjunction with collisions on the right side.

Fig. 8 shows a plow assembly in accordance with an alternative embodiment with increased collision safety in conjunction with collisions on the left side.

Fig. 9 shows a plow assembly where the second plow section is arranged to be rotatable via a first rotating plate and the first plow section is arranged to be rotatable via a second rotating plate. Detailed Description of the Invention

With reference to the figures a plow assembly 1, comprised of at least one rotating

mechanism 2 for steering of mutual rotating (turning) movements between at least one first part 3 and at least one second part 4, included in the plow assembly 1 , in accordance with the present invention, will be described in more detail. In the shown embodiment, the second part 4 is rotated relative to the first part 3 (which is essentially not rotated during steering but does not exclude the first part being rotated in alternative embodiments).

In the exemplifying embodiment, the rotating mechanism 2 is used to steer the mutual rotary motion between at least two parts (at least one first part 3 and at least one second part 4) in a plow assembly 1 or the like. In alternative embodiments, the rotating mechanism 2 is used to steer one rotary motion, or multiple rotary motions, between at least two parts included in other applications and devices where the corresponding need exists.

The exemplifying plow assembly 1 is preferably suitable to be used for plowing snow, but in alternative embodiments it may be used for moving other types of material. In the

exemplifying plow assembly 1 , the first part 3 consists of at least one first plow section 5 (alternatively wing, wing part or the like). In the exemplifying plow assembly 1, the second part 4 consists of at least one second plow section 6 (alternatively a second wing, wing part or the like).

The plow assembly 1 is preferably suitable to be connected to a vehicle 7. In Fig. 1, the vehicle 7 is exemplified by a truck. In alternative embodiments, the vehicle 7 may be of any other vehicle suitable for the purpose.

Plow assembly 1 is comprised of at least one plow bracket 8, support (console) or the like. The plow bracket 8 is comprised of at least one bracket, such as an attachment bracket, with which the plow assembly is suitable to be connected to at least one bracket such as an attachment bracket on a vehicle 7. The figures show schematically an exemplifying plow bracket. In alternative embodiments, the plow bracket may be of another design and shape suitable for the purpose.

The exemplifying vehicle 7 is provided with a front mounted plow assembly 1 and at least one side mounted wing assembly 9. The exemplifying plow assembly 1 and side wing assembly 9 are merely schematically shown and are exemplifying and not limiting for the scope of the invention. In order to enable rotation of the second plow section 6 relative to the first plow section 5, the design is comprised of at least one rotating mechanism 2 which steers (controls) the mutual rotary motion between plow sections 6 and 5. The rotating mechanism 2 is comprised of at least one rotating plate 10 or the like to which plow section 6 is connected. The rotating plate 10 is pivotally arranged in relation to the plow bracket 8. The rotating plate may for example be pivotally arranged via slide bearings or with other suitable means of pivotal arrangement. The rotating plate 10 turns around an axis of rotation (alternatively rotation axis).

With reference to the embodiments shown in Figs. 4 to 6, the rotating mechanisms 2 are shown which are comprised of at least one steering device 11 with which the plow section 6 is steered relative to the first plow section 5. In alternative embodiments, however, it is conceivable that the plow assembly 1 is comprised of two or more rotatable sections in relation to a first plow section, whereby the plow assembly may include two or more rotating mechanisms 2.

Referring to Figs. 4 to 6, variants of the steering device 11 are shown that are comprised of at least one hydraulic cylinder 12 which at its one end is pivotally connected to an arm 13, lever or bracket and at its other end is pivotally connected to a bracket, or similar, in the plow bracket 8 or alternatively to another suitable for the purpose part of the plow assembly 1. By extending the hydraulic cylinder 12, the second plow section 6, connected to the rotating plate 10, is rotated in one direction. By retracting the hydraulic cylinder 12, the second plow section 6, connected to the rotating plate 10, is rotated in the other direction. The steering device 1 1 is controlled by at least one control system (not shown in figures).

The steering device 11 actuates the second plow section 6 to pivot around the axis of rotation 14 any suitable number of degrees. In the exemplifying embodiment, the plow assembly's 1 second plow section 6 pivots at least 70 degrees relative to the plow assembly's 1 first plow section 5. However, the degree of angle of rotation between plow sections 5 and 6 is not limiting for the scope of the present invention and may vary greatly within the scope of the present invention.

A specific feature of the present rotating mechanism's 2 design, is that it allows the corner 15 (at least one position, along the right edge which during use is preferably flush against the ground) of the plow section 6, when rotating the second plow section 6 relative to the first plow section 5 or alternatively the design, to be steered during the turning (rotating) motion. What is meant by a corner 15 of the plow section 6, in the exemplifying embodiment, is the right hand corner 15 of the plow section as seen from the direction of travel. In a first embodiment of the rotating mechanism 2, all positions of the plow section's 6 corner 15 during rotation may be steered to describe a straight (linear) or essentially straight movement. In alternative embodiments, the movement of the corner 15 may be steered to describe other suitable for the purpose and desired types of movements. Thus, the corner 15 of the plow section 6 may describe a movement, such as a curved-shaped movement, which deviates from an arcuate movement, that is, it describes a translative movement.

Fig. 2 A shows an exemplifying variant of the plow assembly comprised of a first plow section 5 and a second plow section 6. In the embodiment, the first plow section is connected to the plow bracket 8 via at least one rotating plate 10, which is pivotally arranged in relation to plow bracket 8.

Fig. 2 B shows an exemplifying second plow section 6 with its associated glide rails. Plow section 6 along stretch A in the horizontal direction is uniform (the same shape with respect to curvature, except for the recess allowing plow section 6 to be folded over plow section 5). Further, plow section 6 is comprised of at least one second stretch B which receives an increasing radius and height in the longitudinal direction from the first plow section 5 (for example, a conical shape).

The first plow section 5 is shown in Fig. 2 C. The plow sections' 5 and 6 surfaces include cooperative shapes to prevent or minimize snow moving between the plow sections when using the plow. In the exemplifying embodiment, the first plow section 5 has an increasing radius and height in the longitudinal direction toward the second plow section 6 (for example, a conical shape).

In alternative embodiments, plow sections 5 and 6 may consist of any prior art form of plow design, plow blades, grader blades or the like, these are therefore not described in more detail in this patent application.

In Fig. 2 D, the plow bracket 8 is connected to at least one rotating plate 10. At least one first rotating plate 10 is connected to plow bracket 8. In the figure, a first glide rail 16 and a second glide rail 17 are shown. The first glide rail 16 and the second glide rail 17 are mutually movably arranged in the axial directions of the glide rails 16 and 17. The glide rails 16 and 17 are preferably mutually movably arranged, for example, via slide bearings or with other suitable movement methods or bearings. Referring to Fig. 2 E, a cross section of a first glide rail 16 and a second glide rail 17 interconnected with each other is shown. The shape of the glide rails 16 and 17 shown in the figure is not limiting for the scope, and they may be of another known design.

Fig. 2 F shows a cross section of a rotating plate 10 connected to the plow bracket 8. The shape of the rotating plate and the shape of the plow bracket may vary within the scope of the present invention. In alternative embodiments, not shown in figures, the design may be comprised of at least two rotating plates which pivot around a vertical axis.

With reference to Figs. 2 G to 2 I, plow sections 5 and 6 are shown in more detail with interacting shapes and their function. In the exemplifying embodiment, the first plow section 5 and the second plow section 6 tangentially intersect along all or part of the right end of the plow section 5, preferably the distance between the ground and the top of the right end of the plow section 5. The cooperating shapes cause snow to essentially not "leak" between the first plow section 5 and the second plow section 6. This is achieved by the axis of rotation 14 lying at the front edge of the second plow section's 6 surface, and the right rear corner being located at the center of the axis of rotation 14, alternatively near the center of the axis of rotation 14.

The outer shape of the right edge 30 of the plow section 5 should be identical or essentially identical to the internal shape of the second plow section's 6 uniform segment 31 (stretch A). The shape of the uniform segment 31 and the edge 30 is essential for the function of the cooperative shapes when plow sections 5 and 6 are moved in relation to each other. In conjunction with the rotation of the plow section 6 around the axis of rotation 14, the edge 30 of the plow section 5 will move in the plow section's 5 axial direction (stretch A) caused by plow section 6 and plow section 5 relative movement. The technical effect of the said design is that leakage (escape) of snow or similar is thereby prevented or greatly minimized. Referring to Fig. 3, a first embodiment of a rotating mechanism 2 with which the

aforementioned function can be achieved is shown. In the embodiment, the second plow section 6 (part 4) is rotatably (pivotally) arranged relative to the first plow section 5 (part 3) via at least one first axis of rotation 14. In the preferred embodiment, the second plow section 6 is rotatably (pivotally) arranged relative to the first plow section 5 around at least one first axis of rotation 14. The second plow section 6 is connected to a rotatable bracket such as a rotating plate 10 or other design part included in the plow assembly. A specific feature of the present invention is that the radial position of the second plow section 6 (and more specifically the right corner 15 of plow section 6) relative to the axis of rotation 14 is moved by a rotation of the plow section 6 around the axis of rotation 14. The second plow section 6 is movably arranged in the rotating plate's 10 (the rotatable portion) radial direction. The second plow section 6 is connected to the rotating plate 10 (the rotatable portion) via glide rails 16, 17, running rails or other for the purpose suitable design. In the exemplifying embodiment, the glide rail 17 is connected to the second plow section 6 and the glide rail 16 is connected to the rotating plate 10.

With reference to Figs. 4 A and 4 B, a first exemplifying rotating mechanism in accordance with the present invention is shown. In the embodiment, the movement of the second plow section 6 in relation to the first plow section 5 is steered by that the second plow section 6 includes at least one pin 18 or the like which is guided by at least one groove 19 or the like. The pin 18 is moveably arranged in relation to the groove 19 via, for example, sliding bearings or other suitable for the purpose movement techniques or bearings. The groove 19 is comprised of at least one cam curve 20 which, upon rotation of the second plow section 6 around the axis of rotation 14, steers the corner 15 of the second plow section 6 so that the corner 15 moves linearly or essentially linearly or another non-circular motion. The cam curve 20 may be both connected to the plow section 6 and alternatively to other parts of the plow assembly 1. A design where the pin 18 is fixed and the cam curve 20 is movably arranged is shown for example in Fig. 4 B. In Figures 4 A and 4 B, the second plow section 6 is shown by dotted lines in different rotational positions relative to the axis of rotation 14. The cam curve 20 is preferably replaceable. This replacement is achieved for example, by the fact that the cam curve 20 is part of a replaceable element 21. By replacing the replaceable element 21 with its associated cam curve 20, with another replaceable element 21 which has a different shaped cam curve 20, another movement than the said linear movement for the corner (edge) 15 is achieved.

By controlling movement of the corner (edge) 15 of plow section 6, which lies against the ground during plowing, to move linearly in relation to the direction of travel, the risk of something or someone, at the side of the road being damaged is minimized. Furthermore, an improved plowing result is obtained with this design.

The first plow section 5 and the second plow section 6 have cooperative shapes which allows the plow sections 5 and 6 to mutually rotate (turn) without a gap (distance), or not too big a gap (distance), between the plow sections 5 and 6 being created. It is conceivable that any eventual gap between the first plow section 5 and the second plow section 6 may be prevented by the space between the first plow section 5 and the second plow section 6 being sealed by a sealing material, or the like. Referring to Fig. 5, a first alternative embodiment of the rotating mechanism 2 in accordance with the present invention is shown. In this embodiment of the rotating mechanism 2, the controlled movement of the corner 15 of the plow section 6 is achieved, such as a linear movement in the direction of movement of the vehicle at the corner 15 of the second plow section 6, by the rotating mechanism 2 being comprised of at least one gear assembly 22, transmission or the like. The design of the gear assembly 22 may vary within the scope of the invention. For example, the gear assembly 22 may be comprised of (or include) a gear reduction set, toothed transmission gear, belt drive (transmission), chain drive (transmission) or another for the purpose suitable gear assembly or combinations of said technology. In alternative embodiments, the gear or transmission is comprised of at least one asymmetric gear wheel, drive or the like. In this embodiment, the rotating plate 10 is provided with teeth. Even this embodiment of the rotating mechanism 2 causes the corner 15 of the second plow section 6, during rotation around the axis of rotation 14, to be moved in the radial direction relative to the axis of rotation 14. In the figure, the second plow section 6 is shown in dotted lines in different rotational positions relative to the axis of rotation 14 and the plow section 5. Referring to Fig. 6, a second alternative embodiment of the present rotating mechanism 2 is shown. In this embodiment of the rotating mechanism 2, a movement of the second plow section 6 in the radial direction relative to the axis of rotation 14 occurs in connection with a rotation of the second plow section 6 around the axis of rotation 14 The movement of the plow section 6 in the radial direction relative to the axis of rotation 14 is accomplished by at least one second steering device comprising at least one second hydraulic cylinder 23 or the like.

In a further alternative embodiment (not shown in figures), the second plow section 6 may be moved in a radial direction relative to the axis of rotation 14 by at least one electrically driven steering device. The electrically operated steering device may, for example, be comprised of an electrically driven motor, alternatively comprised of at least one electrically driven motor and at least one gear, transmission or the like. This embodiment requires that the rotating mechanism 2 includes or is connected to a control system which controls the position of the second plow section 6 relative to the axis of rotation 14 and the rotation angle between the second plow section 6 and the first plow section 5.

In further alternative embodiments of the rotating mechanism according to the present invention, it is conceivable that the steered motion (such as, for example, the linear motion) of the corner 15 of the second plow section 6 is achieved by a link rod (articulated rod) technology comprising at least one first link rod and at least one second link rod (not shown in figures). In alternative embodiments, it is conceivable that the relative movement between the second plow section 6 and the first plow section 5 is achieved by another suitable technology. Thus, it is conceivable that the intended technical effect is achieved with sprocket wheels or similar technologies.

Referring to Figs. 7 and 8, alternative embodiments of the plow assembly are shown which disclose improved crash safety features. In Fig. 7, a collision in principle is shown against the right side 24 of the plow assembly, illustrated by arrow F. In Fig. 8, a collision is shown by arrow F against the left side 25 of the plow. In this embodiment, the first part 3 is rotatably (articulated) arranged relative to the plow bracket 8 and the second part 4. The rotatability between the second plow section 6 and the first plow section 5 is achieved by the it being comprised of at least one articulated (pivotal) joint 26, connection, bearing or the like. Rotation takes place around an axis of rotation in the articulated joint. Referring to Fig. 7, a collision is shown against the right side of the plow assembly 1. Upon a crash (collision, impact) against the plow, the force F will affect the plow assembly. The corner 15 of the second plow section 6 will from the force F move in the longitudinal direction of the vehicle while rotating it around the axis of rotation 14. The first plow section 5 will be actuated by the second plow section 6 to rotate in the opposite direction to the second plow section 6. A technical effect of damping the collision forces (by creating a distance to absorb the force caused during the collision) is achieved by this design.

Referring to Fig. 8, a collision is shown against the left side of the plow assembly. Upon collision (impact, crash) against the plow assembly, the force F will affect the plow assembly. The corner (edge) 15 of the first plow section 5 will from the force F move in the longitudinal direction of the vehicle while rotating it around the axis of rotation in the articulated joint 26. A technical effect of damping the collision forces (by creating a distance to absorb the force caused during the collision) is achieved by this design.

The force required to achieve a rotation of the second plow section 6 relative to the first plow section 5 may be fixed or adjustably arranged. The force required to achieve the rotation of the first plow section around the axis of rotation in the articulated joint 26 may also be fixed or adjustable. The force required to achieve this effect is such that it allows normal plowing with the plow assembly but that the effect is achieved in a collision where the collision energy exceeds a predetermined level. For example, this can be achieved by using one or more break pins (not shown in figures). Alternatively, at least one spring assembly (not shown in figures) or the like can be used. An air spring in the form of a pressure cylinder or the like can be used.

Referring to Fig. 9, an embodiment is shown where the articulated joint 26 consists of a second swivel (pivot) disc (plate) 27. With the second swivel disc 27, the advantage of a reduced turn-out (rotation) to the left is achieved which reduces the risk of aggravating collision damage. The rotation of the first plow section 5 can be accomplished via an articulated connection (bearing, joint) made up of a second swivel disc 27 which is pivotally arranged in relation to the plow bracket 8. The first plow section 5 in alternative embodiments is able to move relative to the articulated joint 26 (in the radial direction of the swivel disc). This can be accomplished by using at least one hydraulic cylinder, pneumatic cylinder or the like. This movement may be achieved by the assembly including at least one glide rail (third glide rail) 28 or the like and at least one glide rail (fourth glide rail) 29. In the exemplifying embodiment, the third glide rail 28 is connected to the first plow section 5 and the fourth glide rail 29 to the second swivel disc 27. The glide rails 28 and 29 are preferably articulated (pivotally arranged) relative each other, for example, by sliding bearings or by other suitable methods allowing for articulated movement. This design allows the left edge of the plow section 5, during a forced movement, to be pivoted (swung) backward without the left edge making a circular motion, that is, it can move parallel to the direction of travel without the risk of further collision with obstacles.

With a plow assembly 1 in accordance with the present invention, it is, for example, possible to collect snow, for example, at intersections and the like and move it to a suitable location for the purpose. In alternative embodiments, it is conceivable that the plow assembly 1 consists of a front plow (on a vehicle) combined with at least one side wing including a function for controlling the movement on the free corner (end) of the side wing at the same time as the free corner of the front plow. In alternative embodiments, it is conceivable that the free end of the first plow section (left end) includes at least one skid (ski), brim or the like (not shown in figures). The skid's or the brim's function is to prevent the end of the plow from entering between two posts in a tension cable (wire) traffic barrier (divider) in the direction of the vehicle.

In the detailed description of the present invention, design details may have been omitted which are apparent to persons skilled in the art. Such obvious design details are included to the extent necessary so that the proper and full performance of the present invention is achieved. For example, components such as brackets, screw joints, articulated bearings or joints (connections) and other parts are included to the extent necessary so that an adequate function of the assembly is obtained in accordance with the present invention. Even if certain preferred embodiments have been described in detail, variations and modifications within the scope of the invention may become apparent for specialists in the field of the invention and all such are regarded as falling within the scope of the following claims. Thus, it is conceivable that the present invention be utilized for other purposes and applications than presented herein. Corresponding problems may also exist in areas other than snow plowing where loosely assembled and lighter types of materials such as wood chips, sawdust, fodder and various granular materials, for example, are to be brought together or moved. In alternative embodiments, the plow assembly is adapted to left-hand traffic. Said embodiments are in these cases mirror-inverted. Advantages of the Invention

The present invention achieves several advantages. First, an improved rotational mechanism is achieved which solves, or reduces, at least one of the technical problems mentioned in the background or description. More specifically, one of the advantages of the present rotating mechanism is that it during maneuvering does not make a circular arc but a linear or substantially linear motion. Furthermore, a plow with improved crash safety is achieved.