CA2259841C - Extending wing for a plowing bucket - Google Patents
Extending wing for a plowing bucket Download PDFInfo
- Publication number
- CA2259841C CA2259841C CA 2259841 CA2259841A CA2259841C CA 2259841 C CA2259841 C CA 2259841C CA 2259841 CA2259841 CA 2259841 CA 2259841 A CA2259841 A CA 2259841A CA 2259841 C CA2259841 C CA 2259841C
- Authority
- CA
- Canada
- Prior art keywords
- arm member
- plowing
- bucket
- gate
- extending wing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
- E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
- E01H5/06—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades
- E01H5/065—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades characterised by the form of the snow-plough blade, e.g. flexible, or by snow-plough blade accessories
- E01H5/066—Snow-plough blade accessories, e.g. deflector plates, skid shoes
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Soil Working Implements (AREA)
Abstract
An extending wing is provided for connection with a plow. The extending wing of this invention serves to expand the reach of a general purpose plow and prevent the trailing of a plowed material from an end thereof. The extending wing of this invention is further adaptable for the purpose of preventing the trailing of a plowed material from a plow end when the plow is operated in a reverse direction.
Description
EXTENDING WING FOR A PLOWING BUCKET
BACKGROUND OF THE INVENTION
The art of plowing is not unfamiliar to innovative adaptations and changing techniques. The traditional plow has been endlessly redesigned to include features to assist with the removal of many materials, for example, snow, from a variety of locations.
A wide variety of plow attachments currently exist which attempt to expand the range of clearance of a plow, improve the capacity of a plow, strategically relocate material being plowed, and which are adaptable for secured positioning about a plow for the purpose of safe transportation. Such attachments are generally single-purpose plowing devices which are not readily adapted for a variety of locations or plowing techniques.
Many plows and plow attachments of the prior art include plow wings which extend the reach of the plow and/or prevent the trailing of snow or a similar plowed material from the plow ends. However, such plow wings are often awkward to manouevre, and inhibit the ability to successfully operate the plow in a rearward direction. Such devices of the prior art are mechanically complex and subsequently difficult to employ and more expensive to manufacture and maintain.
U.S. Patent No. 5,638,618 discloses a multi-purpose adjustable wing plow having at least one extendable, forwardly pivotable plow wing. The plow wings of this patent are adjustable between retracted, extended and forwardly angled positions.
In the retracted position, the wings are maintained in an orientation suitable for transportation. In the extended position, the wings are effective in clearing a larger area, and in the forwardly extended position the wings facilitate the pushing or carrying of snow or any other such plowed material without the trailing of the material from the plow ends. Although the winged plow of U.S. Patent No.
5,638,618 does claim to be a mufti-purpose plow, the device is mechanically complex. Further, when the plow of U.S. Patent No. 5,638,618 is engaged in a reverse orientation, the wings are in the extended position, and accordingly are not capable of preventing the trailing of a plowed material from the plow ends. In addition, when the plow wings are forwardly angled, an added resistence is met by the plow and a decreased distance is reached than when in the fully extended position.
Accordingly, this mufti-purpose adjustable wing plow is not without its shortcomings.
It is evident that there exists a need for efficient and effective mufti-purpose plow attachments, which can be easily installed on any existing plow to provide increased reach and reduced trailings from plow ends. There is a further demand for a plow attachment that is adaptable for plowing in both a forward and a rearward direction. Further still, such a plow attachment must be adaptable in connection with a plow to be safely positioned for the purposes of transport, and easily operable between its respective positions.
SUMMARY OF THE INVENTION
The present invention provides an extending wing for connection about plow ends. The present invention may be retrofitted for connection with existing plowing buckets, thereby improving the efficiency and utility of general purpose plows of the prior art. Alternatively, the present invention may be manufactured to fit most plow ends.
The extending wing of the present invention increases the utility of general purpose plowing buckets by expanding the reach of the bucket, reducing the time needed to complete a given job, and preventing the trailing of plowed material from plow ends when material is being plowed in both a forward and a reverse direction.
The extending wing of the present invention is improved over similar attachments of the prior art not only in its utility as mentioned above, but also in its mechanical simplicity which has the advantage of economies of scale, durability and ease of use and maintenance.
In accordance with an embodiment of the present invention there is provided an extending wing for connection with a plowing bucket, comprising an arm member including a pivotal connection and a slot which allows said arm member to move with respect to said plowing bucket; and a pivoting means for positioning said arm member between a first and a second position; wherein said pivoting means attaches at a first end to said arm member and at a second end to said plowing bucket;
whereby said second end of said pivoting means extends through said slot in said arm member and attaches to said plowing bucket in such an arrangement that said pivoting means is movable along said slot.
In accordance with an embodiment of the present invention there is provided an extending wing for connection with a plowing bucket, comprising an arm member including a pivotal connection and a slot which allows said arm member to move with respect to said plowing bucket; a gate in hinged connection with said arm member; an actuating means in rotational connection with said arm member and said gate;
wherein said actuating means actuates movement of said gate with respect to said arm member; and a pivoting means for positioning said arm member between a first and a second position; wherein said pivoting means attaches at a first end to said arm member and at a second end to said plowing bucket; and wherein said second end of said pivoting means extends through said slot in said arm member and attaches to said plowing bucket in such an arrangement that said pivoting means is movable along said slot; wherein connection with said plowing bucket, said extending wing is adaptable between a first transportable position, and a second plowing position; and wherein in said second plowing position, said gate means is positioned by said actuating means to extend outwardly from said arm member and away from said plowing bucket.
DESCRIPTION OF THE DRAWINGS
Figure 1 is a side view of the extending wing of the present invention in a forwardly extended orientation.
Figure 2 is a side view of the extending wing of the present invention in a reclined orientation.
Figure 3 is a side view of an embodiment of the present invention adapted for reverse plowing.
Figure 4 is a perspective view of an embodiment of the present invention adapted for forward plowing.
Figure 5 is a top view of the embodiment of the present invention of Figure 4.
The present invention will be described in detail in accordance with the drawings, hereinbelow.
DETAILED DESCRIPTION OF THE INVENTION
The present invention is an extending wing for connection with a plow and adaptable for use in plowing a material such as snow, or a similar plowable material.
The extending wing of the present invention may be employed at one or both ends of a plow. The present invention is particularly useful in its ability to extend the reach of a general purpose plow, while restricting the trailing of a plowed material from the plow ends. The extending wing of the present invention is further adaptable for reverse plowing and can be easily secured for safe transportation.
The extending wing 10 of Figure 1 is shown in connection with a general purpose plowing bucket 12. However, the extending wing 10 of the present invention may be retrofitted to fit a variety of plowing buckets, blades, or other similar plowing devices. In addition, extending wing 10 of the present invention may be employed in connection with any vehicle suitable for the purposes of plowing.
Extending wing 10 of the present invention is shown in connection with a plowing bucket 12 and includes an arm member 18, a gate 30 and a pair of hydraulic rams 24 and 34. Arm member 18 is adaptable to receive a pivotal connection at pivot point 22 and includes a slot 20 located thereon. Gate 30 is provided in a hinged connection 28 with arm member 18.
A first end of hydraulic ram 24 attaches to a location on arm member 18 while a second end of hydraulic ram 24 extends through slot 20 and attaches to a location on plowing bucket 12. Accordingly, extending wing 10 is moveable within a vertical plane with respect to plowing bucket 12 under the pivotal control of hydraulic ram 24 and to the extent that the second end of hydraulic ram 24 is moveable along slot 20.
Hydraulic ram 34 extends between arm member 18 and gate 30 and actuates the movement of gate 30 about hinged connection 28. Hydraulic ram 34 is provided in a hinged connection 35 with gate 30 to allow movement thereof when ram 34 is contracted and gate 30 is subsequently extended in an outwardly direction away from plowing bucket 12.
As illustrated in Figure l, extending wing 10 extends forwardly and is generally perpendicular to the plowing bucket 12. In this orientation, both hydraulic rams 24 and 34 are fully extended. When plowing bucket 12 is positioned along the ground in an orientation for plowing, extending wing 10 is subsequently positioned under the control of hydraulic ram 24 such that a bottom edge 14 of extending wing is aligned within the plane of a cutting edge 16 of plowing bucket 12 and extending wing 10 extends forwardly past plowing bucket 12. In this position, the second end of hydraulic ram 24 engages the lower end 23 of slot 20. When 10 extending wing 10 is employed for the purpose of plowing in this forwardly extending orientation, the pressure of hydraulic ram 24 is released, thus allowing extending wing 10 the flexibility to absorb the shock of rough terrain.
Figure 2 illustrates extending wing 10 in a generally upright position in connection with plowing bucket 12. In this position, plowing bucket 12 is elevated off of the ground such that extending wing 10 is held in a reclined position suitable for transportation. As hydraulic ram 24 contracts, extending wing 10 becomes elevated from its extended position, and the second end of hydraulic ram 24 moves along slot 20 in arm member 18. When the second end of hydraulic ram 24 reaches the upper end 21 of slot 20, extending wing 10 is positioned in a reclined orientation and hydraulic ram 24 is fully contracted.
Slot 20 is semi-circular in shape and extends hemispherically around pivot point 22. In this form, slot 20 accommodates the connection between hydraulic ram 24 and plowing bucket 12 when extending wing 10 is rotated about pivot point 22.
The length of slot 20 is coterminous with the length of hydraulic ram 24 and accommodates the dynamic range of rotation of extending wing 10 about pivot point 22. As extending wing 10 is rotated about pivot point 22, the length of hydraulic ram 24 changes and the second end of hydraulic ram 24 moves along slot 20 from respective positions between upper and lower slot ends 21 and 23.
In the upright and reclined position of Figure 2, extending wing 10 is supported under the pressure of hydraulic ram 24 and is sufficiently secured for the purpose of transportation. In this position, extending wing 10 is safely positioned at the side of plowing bucket 12 and does not project outwardly so as to obstruct the manoeuverability of the vehicle carrying the plowing bucket 12.
The positioning of extending wing 10 in the upright and reclined position provides a further advantage of the present invention wherein the extending wing 10 is adaptable for use in reverse plowing. Plowing bucket 12 is pivotally connected to arm member 18 at pivot point 22, and accordingly, when plowing bucket 12 is forwardly tilted to perform reverse plowing, extending wing 10 is subsequently tilted forward under the force of hydraulic ram 24 about end 21 of slot 20. The angle of recline of extending wing 10 is generally equivalent to the angle of plowing bucket 12 when forwardly tilted to reverse plow.
For example, in a preferred embodiment of the present invention, slot 20 on arm member 18 is positioned to accommodate extending wing 10 in a 30 degree reclined position when hydraulic ram 24 is fully contracted and the extending wing 10 is positioned in an upright and reclined orientation. In this position, plowing bucket 12 may be subsequently positioned for reverse plowing at an equivalent degree forwardly tilted angle. Accordingly, as illustrated in Figure 3, when plowing bucket 12 is positioned to reverse plow, extending wing 10 is positioned approximately perpendicular to the plowing bucket 12 such that a rearward edge of arm member 18 is aligned within the plane of the cutting edge 16 of plowing bucket 12. In this manner, as the vehicle mounting plowing bucket 12 travels in reverse across an area to be plowed, cutting edge 16 engages and directs a plowable material in the direction of plowing bucket 12 while rearward edge 32 of arm member 18 provides a barrier to the escape of the plowable material from the plow end thereon located. Extending wing 10 is held in a position to communicate with plowing bucket 12 for reverse plowing substantially by the force provided on hydraulic ram 24 about end 21 of slot 20. Again, where extending wing 10 is employed for the purpose of plowing, the pressure of hydraulic ram 24 is released so as to accommodate for the shock of bumps and obstructions encountered by extending wing 10 during the course of plowing.
Figures 1, 2 and 3 depict extending wing 10 in an extended orientation whereby gate 30 is aligned with arm member 18 and projects forwardly therefrom.
The alignment of gate 30 with arm member 18, as illustrated in Figures l, 2 and 3 is preferred for the purpose of transportation wherein extending wing 10 is positioned in an upright and reclined orientation, in close proximity to the side of the vehicle mounting plowing bucket 12. The positioning of extending wing 10 in close proximity to the vehicle is also preferred for the purpose of reverse plowing.
Where extending wing 10 is employed for the purposes of plowing in a forward direction, gate 30 is operable within a range of positions as provided by hydraulic ram 34.
When hydraulic ram 34 is in a fully extended position, gate 30 is aligned with arm member 18 and projects forwardly therefrom.
In accordance with one embodiment of the present invention, hydraulic ram 34 is provided in a fully extended position to accommodate extending wing 10 in a orientation suitable for a preferred plowing technique. Specifically, this embodiment of the present invention provides a technique far plowing an area which is bordered along at least one side, for example, by a curb or a row of vehicles.
Accordingly, gate 30 is aligned with arm member 18 and projects forwardly therefrom such that extending wing 10 extends substantially perpendicular to cutting edge 16 of plowing bucket 12. In this orientation, extending wing 10 is subsequently positioned a safe distance from the curb or row of vehicles, for example, and employed to extend the capacity of plowing bucket 12. Particularly, in this position, the area for receiving a plowable material is increased, and where only one extending wing 10 is employed, a trailing of plowable material is formed about the end of the plowing bucket 12 which is not employing an extending wing 10. Plowing is subsequently commenced in the region proximate the curb or row or vehicles and proceeds across the area to be plowed. This technique of plowing prevents the buildup of snow, caused by the trailings from the end of the plow proximate the curb or row of vehicles and ensures that extending wing 10 does not collide with a curb or parked vehicles bordering an area to be plowed. In addition, the length of extending wing 10, projecting forwardly from plowing bucket 12, provides plowing bucket 12 with an increased area for engaging plowable material.
In a preferred embodiment of the present invention, as illustrated in Figures l, 2 and 3, gate 30 includes a declining forward edge 33 having a curved bottom end 36.
Declining forward edge 33 provides extending wing 10 with added resiliency during the course of plowing. More specifically, where extending wing 10 is employed in a substantially perpendicular orientation with respect to plowing bucket 12, the declining forward edge 33 and curved bottom end 36 provide improved shock absorption to extending wing 10 by facilitating the upward movement of extending wing 10 when obstructions, for example curbs, are encountered along the surface being plowed. In addition, declining forward edge 33 assists in the plowing of plowable material past an outer edge of an area to be plowed. For example, where an area is bordered along an outer edge by a curb, declining forward edge 33 allows material to be plowed past the outer edge when curved bottom end 36 engages the outer curb.
Hydraulic ram 34 may be contracted to position gate 30 within a range of positions outwardly extending from arm member 18 so as to accommodate a variety of plowing techniques. In accordance with this range of positions, the outward extension of gate 30 from arm member 18 preferably does not exceed 170 degrees.
Figure 4 illustrates another embodiment of the present invention wherein extending wing 10 is in an orientation suitable for plowing in a forward direction. In this orientation gate 30 outwardly extends at approximately 165 degrees from arm member 18. Specifically, this orientation of gate 30 expands the reach of plowing bucket 12 while being capable of withstanding the force created by the buildup of large volumes of plowable material. Accordingly, a larger area can be plowed in a reduced period of time.
In this orientation, arm member 18 further provides a barrier to escaping material from the plow ends as the plowing bucket 12 travels in a forward direction across an area to be plowed. Therefore, when extending wing 10 is provided in a forwardly extending position with gate 30 extending outwardly from arm member 18, the present invention effectively increases the reach of a general purpose plow and prevents the escape of material from the ends thereof. In doing so, the capacity of the plow is increased and the average time to plow a given area is reduced.
When a plow operator has arrived at a destination to be plowed, plowing bucket 12 is aligned with an area to be plowed at a distance sufficiently removed therefrom so as to allow for the extension of extending wing 10 from its upright and reclined position. As hydraulic ram 24 extends and moves along slot 20, extending wing 10 moves forwardly. The plow operator subsequently lowers plowing bucket 12 until cutting edge 16 and bottom edge 14 come to rest on the ground and extending wing 10 extends forwardly from plowing bucket 12 and substantially perpendicular thereto. Once plowing bucket 12 and extending wing 10 rest along an area of ground bordering the area to be plowed, the plow operator powers hydraulic ram 34 to position gate 30, at the appropriate angle outwardly extending from arm member 18, to accommodate the area to be plowed. In an extended position hydraulic ram 34 aligns gate 30 with arm member 18 such that gate 30 extends forwardly therefrom. When powered to position gate 30 at an angle with respect to arm member 18, hydraulic ram 34 is contracted causing the gate 30 to swing outwardly and away from arm member 18 about hinged connection 28. As mentioned above, hydraulic ram 34 is provided in a hinged connection 35 at opposite ends thereof with gate 30 and arm member 18. Hinged connection 35 is illustrated in Figure 5 as a single hinged connection at opposite ends of hydraulic ram 34.
However, it is not devoid from the scope of this invention to provide hydraulic ram 34 in an alternate hinged arrangement with gate 30 and arm member 18 suitable for accommodating the desired movement of gate 30, for example by employing a doubled hinged connection at opposite ends of hydraulic ram 34. When gate 30 reaches a determined angle, extending outwardly and away from arm member 18, the plow operator operates the vehicle mounting the plowing bucket 12 in a forward direction to communicate with the material to be plowed. Arm member 18 prevents the plowed material from escaping from a plow end, while gate 30 serves to increase the area being plowed. Specifically, cutting edge 16 engages and loosens a material to be plowed such that the material accumulates within plowing bucket 12 as it proceeds in a forward direction across an area to be plowed. Arm member 18 projects past the plow end of plowing bucket 12 to extend the side wall thereof and prevents the trailing of material therefrom. Gate 30 further extends outwardly from arm member 18 to engage plowable material proximate the plow end, thus directing the plowable material proximate the plow ends a further distance therefrom.
Where gate 30 outwardly extends from arm member, the plowable material proximate the plow end is displaced at a distance therefrom and a larger area is effectively cleared.
In a preferred embodiment of the present invention, as illustrated in Figure 5, a plowing bucket 12 is provide with a extending wing 10 attached at both plow ends thereof. In this arrangement, the reach of plowing bucket 12 is further extended by twice the length of gate 30 and the trailing of plowed material from the plow ends of plowing bucket 12 is prevented. However, where an area does not accommodate the range of both extending wings 10 extending from plow bucket 12, one extending wing 10 may be positioned in the upright and reclined orientation, while the other extending wing 10 is positioned so as to facilitate plowing bucket 12 in plowing.
In the event where a plow reaches the end of the area to be plowed, for example at a location of a garage at the end of a driveway, extending wing 10 may be elevated under the control of hydraulic ram 24 to an upright and reclined position and the plowing bucket 12 may be forwardly tilted to provide extending wing 10 in an orientation suitable for reverse plowing. As described above, in this orientation, extending wing 10 is positioned approximately perpendicular to the plowing bucket 12 such that rearward edge 32 of arm member 18 is aligned within the plane of the cutting edge 16 of plowing bucket 12. Accordingly, the accumulation of plowable material proximate the garage, resulting from the operation of forward plowing, may be engaged by cutting edge 16 and thereby retained by arm member 18 as plowing bucket 12 proceeds in a reverse orientation so as to be removed from the area to be plowed, for example, a driveway. Upon returning to the edge of the area to be plowed, the plowing bucket 12 will have effectively cleared an area at least as wide as the distance of ground covered by plowing bucket 12 having one or two gates 30 projecting therefrom in an outwardly extended orientation.
In a further embodiment of the present invention, the bottom edge 14, rearward edge 32, declining forward edge 33 and curved bottom end 36 of extending wing include a reinforcing strip 38 attached therealong. Reinforcing strip 38 is preferably comprised of a durable material capable of withstanding the friction created as extending wing 10 passes across an area of ground containing plowable material.
Reinforcing material 38 may be, for example, a hardened steel edging. Other durable materials suitable as a reinforced edging on a plow blade or attachments thereof are not devoid from the teachings of the present invention.
Figure 5 provides a top view of plowing bucket 12 in connection with extending wings 10 at opposite ends thereof. In the arrangement of Figure 5, gates 30 are shown to extend rearwardly from hinged connections 28. As discussed above, gate 30 of extending wing 10 may be positioned with respect to arm member 18 within a predefined range so as to accommodate the dimensions of an area to be plowed. Under the control of hydraulic ram 34, gate 30 is capable of outward extension within a predefined range. This predefined range is determined by the length of hydraulic ram 34. When hydraulic ram 34 is completely extended, gate is aligned with arm member 18 so as to project forwardly from plowing bucket and to be substantially perpendicular thereto. As hydraulic ram 34 is contracted, gate opens outwardly with respect to plowing bucket 12.
The reach of plowing bucket 12 in connection with extending wings 10 at opposite ends thereof, would be maximized when gates 30 are positioned in a perpendicular orientation with respect to arm members 18. However, in this orientation, gates 30 would be subjected to considerable resistance when employed to engage a plowable material. The resistance encountered by gate 30 when positioned to extend perpendicularly from arm member 18 for the purpose of engaging a plowable material would place an increased strain on hydraulic ram 34 and subsequently results in the need for routine maintenance and repair. In addition, the resistance created by the build up of a plowable material against a perpendicularly extending gate 30 would require increased power from the vehicle mounting the plowing bucket 12, and increases the time needed to plow a given area.
As mentioned above, under the control of hydraulic ram 34, gate 30 can be position at any location within the predefined range of hydraulic ram 34. In accordance with a preferred embodiment of the present invention, gate 30 is positioned to outwardly extend at approximately 165 degrees from arm member 18 for the purposes of improved effectiveness and efficiency of plowing. However, it is fully contemplated that the gate 30 of the present invention may be employed to function at a variety of angles, outwardly extending from arm member 18, within the preferred range of 170 degrees. In addition, it would not be devoid from the present invention to engineer an extending wing 10 which is capable of extending gate 30 at an angle greater than 170 degrees from arm member 18 for the purposes of plowing.
Hydraulic rams 24 and 34 may be controlled to stop at virtually any position between a fully extended and a fully contracted position so as to maintain arm member 18 or gate 30 in a respective position. It is completely understood that hydraulic rams 24 and 34 may be provide to extend or reduce the range of movement of arm member 18 and gate 30 described herein. Further, hydraulic rams 24 and have been described in the present application as the actuating means for pivotally controlling extending wing 10 and outwardly extending gate 30, however, the teachings of the present invention are not limited thereto. Any suitable actuating means may be provided without being devoid from present invention.
BACKGROUND OF THE INVENTION
The art of plowing is not unfamiliar to innovative adaptations and changing techniques. The traditional plow has been endlessly redesigned to include features to assist with the removal of many materials, for example, snow, from a variety of locations.
A wide variety of plow attachments currently exist which attempt to expand the range of clearance of a plow, improve the capacity of a plow, strategically relocate material being plowed, and which are adaptable for secured positioning about a plow for the purpose of safe transportation. Such attachments are generally single-purpose plowing devices which are not readily adapted for a variety of locations or plowing techniques.
Many plows and plow attachments of the prior art include plow wings which extend the reach of the plow and/or prevent the trailing of snow or a similar plowed material from the plow ends. However, such plow wings are often awkward to manouevre, and inhibit the ability to successfully operate the plow in a rearward direction. Such devices of the prior art are mechanically complex and subsequently difficult to employ and more expensive to manufacture and maintain.
U.S. Patent No. 5,638,618 discloses a multi-purpose adjustable wing plow having at least one extendable, forwardly pivotable plow wing. The plow wings of this patent are adjustable between retracted, extended and forwardly angled positions.
In the retracted position, the wings are maintained in an orientation suitable for transportation. In the extended position, the wings are effective in clearing a larger area, and in the forwardly extended position the wings facilitate the pushing or carrying of snow or any other such plowed material without the trailing of the material from the plow ends. Although the winged plow of U.S. Patent No.
5,638,618 does claim to be a mufti-purpose plow, the device is mechanically complex. Further, when the plow of U.S. Patent No. 5,638,618 is engaged in a reverse orientation, the wings are in the extended position, and accordingly are not capable of preventing the trailing of a plowed material from the plow ends. In addition, when the plow wings are forwardly angled, an added resistence is met by the plow and a decreased distance is reached than when in the fully extended position.
Accordingly, this mufti-purpose adjustable wing plow is not without its shortcomings.
It is evident that there exists a need for efficient and effective mufti-purpose plow attachments, which can be easily installed on any existing plow to provide increased reach and reduced trailings from plow ends. There is a further demand for a plow attachment that is adaptable for plowing in both a forward and a rearward direction. Further still, such a plow attachment must be adaptable in connection with a plow to be safely positioned for the purposes of transport, and easily operable between its respective positions.
SUMMARY OF THE INVENTION
The present invention provides an extending wing for connection about plow ends. The present invention may be retrofitted for connection with existing plowing buckets, thereby improving the efficiency and utility of general purpose plows of the prior art. Alternatively, the present invention may be manufactured to fit most plow ends.
The extending wing of the present invention increases the utility of general purpose plowing buckets by expanding the reach of the bucket, reducing the time needed to complete a given job, and preventing the trailing of plowed material from plow ends when material is being plowed in both a forward and a reverse direction.
The extending wing of the present invention is improved over similar attachments of the prior art not only in its utility as mentioned above, but also in its mechanical simplicity which has the advantage of economies of scale, durability and ease of use and maintenance.
In accordance with an embodiment of the present invention there is provided an extending wing for connection with a plowing bucket, comprising an arm member including a pivotal connection and a slot which allows said arm member to move with respect to said plowing bucket; and a pivoting means for positioning said arm member between a first and a second position; wherein said pivoting means attaches at a first end to said arm member and at a second end to said plowing bucket;
whereby said second end of said pivoting means extends through said slot in said arm member and attaches to said plowing bucket in such an arrangement that said pivoting means is movable along said slot.
In accordance with an embodiment of the present invention there is provided an extending wing for connection with a plowing bucket, comprising an arm member including a pivotal connection and a slot which allows said arm member to move with respect to said plowing bucket; a gate in hinged connection with said arm member; an actuating means in rotational connection with said arm member and said gate;
wherein said actuating means actuates movement of said gate with respect to said arm member; and a pivoting means for positioning said arm member between a first and a second position; wherein said pivoting means attaches at a first end to said arm member and at a second end to said plowing bucket; and wherein said second end of said pivoting means extends through said slot in said arm member and attaches to said plowing bucket in such an arrangement that said pivoting means is movable along said slot; wherein connection with said plowing bucket, said extending wing is adaptable between a first transportable position, and a second plowing position; and wherein in said second plowing position, said gate means is positioned by said actuating means to extend outwardly from said arm member and away from said plowing bucket.
DESCRIPTION OF THE DRAWINGS
Figure 1 is a side view of the extending wing of the present invention in a forwardly extended orientation.
Figure 2 is a side view of the extending wing of the present invention in a reclined orientation.
Figure 3 is a side view of an embodiment of the present invention adapted for reverse plowing.
Figure 4 is a perspective view of an embodiment of the present invention adapted for forward plowing.
Figure 5 is a top view of the embodiment of the present invention of Figure 4.
The present invention will be described in detail in accordance with the drawings, hereinbelow.
DETAILED DESCRIPTION OF THE INVENTION
The present invention is an extending wing for connection with a plow and adaptable for use in plowing a material such as snow, or a similar plowable material.
The extending wing of the present invention may be employed at one or both ends of a plow. The present invention is particularly useful in its ability to extend the reach of a general purpose plow, while restricting the trailing of a plowed material from the plow ends. The extending wing of the present invention is further adaptable for reverse plowing and can be easily secured for safe transportation.
The extending wing 10 of Figure 1 is shown in connection with a general purpose plowing bucket 12. However, the extending wing 10 of the present invention may be retrofitted to fit a variety of plowing buckets, blades, or other similar plowing devices. In addition, extending wing 10 of the present invention may be employed in connection with any vehicle suitable for the purposes of plowing.
Extending wing 10 of the present invention is shown in connection with a plowing bucket 12 and includes an arm member 18, a gate 30 and a pair of hydraulic rams 24 and 34. Arm member 18 is adaptable to receive a pivotal connection at pivot point 22 and includes a slot 20 located thereon. Gate 30 is provided in a hinged connection 28 with arm member 18.
A first end of hydraulic ram 24 attaches to a location on arm member 18 while a second end of hydraulic ram 24 extends through slot 20 and attaches to a location on plowing bucket 12. Accordingly, extending wing 10 is moveable within a vertical plane with respect to plowing bucket 12 under the pivotal control of hydraulic ram 24 and to the extent that the second end of hydraulic ram 24 is moveable along slot 20.
Hydraulic ram 34 extends between arm member 18 and gate 30 and actuates the movement of gate 30 about hinged connection 28. Hydraulic ram 34 is provided in a hinged connection 35 with gate 30 to allow movement thereof when ram 34 is contracted and gate 30 is subsequently extended in an outwardly direction away from plowing bucket 12.
As illustrated in Figure l, extending wing 10 extends forwardly and is generally perpendicular to the plowing bucket 12. In this orientation, both hydraulic rams 24 and 34 are fully extended. When plowing bucket 12 is positioned along the ground in an orientation for plowing, extending wing 10 is subsequently positioned under the control of hydraulic ram 24 such that a bottom edge 14 of extending wing is aligned within the plane of a cutting edge 16 of plowing bucket 12 and extending wing 10 extends forwardly past plowing bucket 12. In this position, the second end of hydraulic ram 24 engages the lower end 23 of slot 20. When 10 extending wing 10 is employed for the purpose of plowing in this forwardly extending orientation, the pressure of hydraulic ram 24 is released, thus allowing extending wing 10 the flexibility to absorb the shock of rough terrain.
Figure 2 illustrates extending wing 10 in a generally upright position in connection with plowing bucket 12. In this position, plowing bucket 12 is elevated off of the ground such that extending wing 10 is held in a reclined position suitable for transportation. As hydraulic ram 24 contracts, extending wing 10 becomes elevated from its extended position, and the second end of hydraulic ram 24 moves along slot 20 in arm member 18. When the second end of hydraulic ram 24 reaches the upper end 21 of slot 20, extending wing 10 is positioned in a reclined orientation and hydraulic ram 24 is fully contracted.
Slot 20 is semi-circular in shape and extends hemispherically around pivot point 22. In this form, slot 20 accommodates the connection between hydraulic ram 24 and plowing bucket 12 when extending wing 10 is rotated about pivot point 22.
The length of slot 20 is coterminous with the length of hydraulic ram 24 and accommodates the dynamic range of rotation of extending wing 10 about pivot point 22. As extending wing 10 is rotated about pivot point 22, the length of hydraulic ram 24 changes and the second end of hydraulic ram 24 moves along slot 20 from respective positions between upper and lower slot ends 21 and 23.
In the upright and reclined position of Figure 2, extending wing 10 is supported under the pressure of hydraulic ram 24 and is sufficiently secured for the purpose of transportation. In this position, extending wing 10 is safely positioned at the side of plowing bucket 12 and does not project outwardly so as to obstruct the manoeuverability of the vehicle carrying the plowing bucket 12.
The positioning of extending wing 10 in the upright and reclined position provides a further advantage of the present invention wherein the extending wing 10 is adaptable for use in reverse plowing. Plowing bucket 12 is pivotally connected to arm member 18 at pivot point 22, and accordingly, when plowing bucket 12 is forwardly tilted to perform reverse plowing, extending wing 10 is subsequently tilted forward under the force of hydraulic ram 24 about end 21 of slot 20. The angle of recline of extending wing 10 is generally equivalent to the angle of plowing bucket 12 when forwardly tilted to reverse plow.
For example, in a preferred embodiment of the present invention, slot 20 on arm member 18 is positioned to accommodate extending wing 10 in a 30 degree reclined position when hydraulic ram 24 is fully contracted and the extending wing 10 is positioned in an upright and reclined orientation. In this position, plowing bucket 12 may be subsequently positioned for reverse plowing at an equivalent degree forwardly tilted angle. Accordingly, as illustrated in Figure 3, when plowing bucket 12 is positioned to reverse plow, extending wing 10 is positioned approximately perpendicular to the plowing bucket 12 such that a rearward edge of arm member 18 is aligned within the plane of the cutting edge 16 of plowing bucket 12. In this manner, as the vehicle mounting plowing bucket 12 travels in reverse across an area to be plowed, cutting edge 16 engages and directs a plowable material in the direction of plowing bucket 12 while rearward edge 32 of arm member 18 provides a barrier to the escape of the plowable material from the plow end thereon located. Extending wing 10 is held in a position to communicate with plowing bucket 12 for reverse plowing substantially by the force provided on hydraulic ram 24 about end 21 of slot 20. Again, where extending wing 10 is employed for the purpose of plowing, the pressure of hydraulic ram 24 is released so as to accommodate for the shock of bumps and obstructions encountered by extending wing 10 during the course of plowing.
Figures 1, 2 and 3 depict extending wing 10 in an extended orientation whereby gate 30 is aligned with arm member 18 and projects forwardly therefrom.
The alignment of gate 30 with arm member 18, as illustrated in Figures l, 2 and 3 is preferred for the purpose of transportation wherein extending wing 10 is positioned in an upright and reclined orientation, in close proximity to the side of the vehicle mounting plowing bucket 12. The positioning of extending wing 10 in close proximity to the vehicle is also preferred for the purpose of reverse plowing.
Where extending wing 10 is employed for the purposes of plowing in a forward direction, gate 30 is operable within a range of positions as provided by hydraulic ram 34.
When hydraulic ram 34 is in a fully extended position, gate 30 is aligned with arm member 18 and projects forwardly therefrom.
In accordance with one embodiment of the present invention, hydraulic ram 34 is provided in a fully extended position to accommodate extending wing 10 in a orientation suitable for a preferred plowing technique. Specifically, this embodiment of the present invention provides a technique far plowing an area which is bordered along at least one side, for example, by a curb or a row of vehicles.
Accordingly, gate 30 is aligned with arm member 18 and projects forwardly therefrom such that extending wing 10 extends substantially perpendicular to cutting edge 16 of plowing bucket 12. In this orientation, extending wing 10 is subsequently positioned a safe distance from the curb or row of vehicles, for example, and employed to extend the capacity of plowing bucket 12. Particularly, in this position, the area for receiving a plowable material is increased, and where only one extending wing 10 is employed, a trailing of plowable material is formed about the end of the plowing bucket 12 which is not employing an extending wing 10. Plowing is subsequently commenced in the region proximate the curb or row or vehicles and proceeds across the area to be plowed. This technique of plowing prevents the buildup of snow, caused by the trailings from the end of the plow proximate the curb or row of vehicles and ensures that extending wing 10 does not collide with a curb or parked vehicles bordering an area to be plowed. In addition, the length of extending wing 10, projecting forwardly from plowing bucket 12, provides plowing bucket 12 with an increased area for engaging plowable material.
In a preferred embodiment of the present invention, as illustrated in Figures l, 2 and 3, gate 30 includes a declining forward edge 33 having a curved bottom end 36.
Declining forward edge 33 provides extending wing 10 with added resiliency during the course of plowing. More specifically, where extending wing 10 is employed in a substantially perpendicular orientation with respect to plowing bucket 12, the declining forward edge 33 and curved bottom end 36 provide improved shock absorption to extending wing 10 by facilitating the upward movement of extending wing 10 when obstructions, for example curbs, are encountered along the surface being plowed. In addition, declining forward edge 33 assists in the plowing of plowable material past an outer edge of an area to be plowed. For example, where an area is bordered along an outer edge by a curb, declining forward edge 33 allows material to be plowed past the outer edge when curved bottom end 36 engages the outer curb.
Hydraulic ram 34 may be contracted to position gate 30 within a range of positions outwardly extending from arm member 18 so as to accommodate a variety of plowing techniques. In accordance with this range of positions, the outward extension of gate 30 from arm member 18 preferably does not exceed 170 degrees.
Figure 4 illustrates another embodiment of the present invention wherein extending wing 10 is in an orientation suitable for plowing in a forward direction. In this orientation gate 30 outwardly extends at approximately 165 degrees from arm member 18. Specifically, this orientation of gate 30 expands the reach of plowing bucket 12 while being capable of withstanding the force created by the buildup of large volumes of plowable material. Accordingly, a larger area can be plowed in a reduced period of time.
In this orientation, arm member 18 further provides a barrier to escaping material from the plow ends as the plowing bucket 12 travels in a forward direction across an area to be plowed. Therefore, when extending wing 10 is provided in a forwardly extending position with gate 30 extending outwardly from arm member 18, the present invention effectively increases the reach of a general purpose plow and prevents the escape of material from the ends thereof. In doing so, the capacity of the plow is increased and the average time to plow a given area is reduced.
When a plow operator has arrived at a destination to be plowed, plowing bucket 12 is aligned with an area to be plowed at a distance sufficiently removed therefrom so as to allow for the extension of extending wing 10 from its upright and reclined position. As hydraulic ram 24 extends and moves along slot 20, extending wing 10 moves forwardly. The plow operator subsequently lowers plowing bucket 12 until cutting edge 16 and bottom edge 14 come to rest on the ground and extending wing 10 extends forwardly from plowing bucket 12 and substantially perpendicular thereto. Once plowing bucket 12 and extending wing 10 rest along an area of ground bordering the area to be plowed, the plow operator powers hydraulic ram 34 to position gate 30, at the appropriate angle outwardly extending from arm member 18, to accommodate the area to be plowed. In an extended position hydraulic ram 34 aligns gate 30 with arm member 18 such that gate 30 extends forwardly therefrom. When powered to position gate 30 at an angle with respect to arm member 18, hydraulic ram 34 is contracted causing the gate 30 to swing outwardly and away from arm member 18 about hinged connection 28. As mentioned above, hydraulic ram 34 is provided in a hinged connection 35 at opposite ends thereof with gate 30 and arm member 18. Hinged connection 35 is illustrated in Figure 5 as a single hinged connection at opposite ends of hydraulic ram 34.
However, it is not devoid from the scope of this invention to provide hydraulic ram 34 in an alternate hinged arrangement with gate 30 and arm member 18 suitable for accommodating the desired movement of gate 30, for example by employing a doubled hinged connection at opposite ends of hydraulic ram 34. When gate 30 reaches a determined angle, extending outwardly and away from arm member 18, the plow operator operates the vehicle mounting the plowing bucket 12 in a forward direction to communicate with the material to be plowed. Arm member 18 prevents the plowed material from escaping from a plow end, while gate 30 serves to increase the area being plowed. Specifically, cutting edge 16 engages and loosens a material to be plowed such that the material accumulates within plowing bucket 12 as it proceeds in a forward direction across an area to be plowed. Arm member 18 projects past the plow end of plowing bucket 12 to extend the side wall thereof and prevents the trailing of material therefrom. Gate 30 further extends outwardly from arm member 18 to engage plowable material proximate the plow end, thus directing the plowable material proximate the plow ends a further distance therefrom.
Where gate 30 outwardly extends from arm member, the plowable material proximate the plow end is displaced at a distance therefrom and a larger area is effectively cleared.
In a preferred embodiment of the present invention, as illustrated in Figure 5, a plowing bucket 12 is provide with a extending wing 10 attached at both plow ends thereof. In this arrangement, the reach of plowing bucket 12 is further extended by twice the length of gate 30 and the trailing of plowed material from the plow ends of plowing bucket 12 is prevented. However, where an area does not accommodate the range of both extending wings 10 extending from plow bucket 12, one extending wing 10 may be positioned in the upright and reclined orientation, while the other extending wing 10 is positioned so as to facilitate plowing bucket 12 in plowing.
In the event where a plow reaches the end of the area to be plowed, for example at a location of a garage at the end of a driveway, extending wing 10 may be elevated under the control of hydraulic ram 24 to an upright and reclined position and the plowing bucket 12 may be forwardly tilted to provide extending wing 10 in an orientation suitable for reverse plowing. As described above, in this orientation, extending wing 10 is positioned approximately perpendicular to the plowing bucket 12 such that rearward edge 32 of arm member 18 is aligned within the plane of the cutting edge 16 of plowing bucket 12. Accordingly, the accumulation of plowable material proximate the garage, resulting from the operation of forward plowing, may be engaged by cutting edge 16 and thereby retained by arm member 18 as plowing bucket 12 proceeds in a reverse orientation so as to be removed from the area to be plowed, for example, a driveway. Upon returning to the edge of the area to be plowed, the plowing bucket 12 will have effectively cleared an area at least as wide as the distance of ground covered by plowing bucket 12 having one or two gates 30 projecting therefrom in an outwardly extended orientation.
In a further embodiment of the present invention, the bottom edge 14, rearward edge 32, declining forward edge 33 and curved bottom end 36 of extending wing include a reinforcing strip 38 attached therealong. Reinforcing strip 38 is preferably comprised of a durable material capable of withstanding the friction created as extending wing 10 passes across an area of ground containing plowable material.
Reinforcing material 38 may be, for example, a hardened steel edging. Other durable materials suitable as a reinforced edging on a plow blade or attachments thereof are not devoid from the teachings of the present invention.
Figure 5 provides a top view of plowing bucket 12 in connection with extending wings 10 at opposite ends thereof. In the arrangement of Figure 5, gates 30 are shown to extend rearwardly from hinged connections 28. As discussed above, gate 30 of extending wing 10 may be positioned with respect to arm member 18 within a predefined range so as to accommodate the dimensions of an area to be plowed. Under the control of hydraulic ram 34, gate 30 is capable of outward extension within a predefined range. This predefined range is determined by the length of hydraulic ram 34. When hydraulic ram 34 is completely extended, gate is aligned with arm member 18 so as to project forwardly from plowing bucket and to be substantially perpendicular thereto. As hydraulic ram 34 is contracted, gate opens outwardly with respect to plowing bucket 12.
The reach of plowing bucket 12 in connection with extending wings 10 at opposite ends thereof, would be maximized when gates 30 are positioned in a perpendicular orientation with respect to arm members 18. However, in this orientation, gates 30 would be subjected to considerable resistance when employed to engage a plowable material. The resistance encountered by gate 30 when positioned to extend perpendicularly from arm member 18 for the purpose of engaging a plowable material would place an increased strain on hydraulic ram 34 and subsequently results in the need for routine maintenance and repair. In addition, the resistance created by the build up of a plowable material against a perpendicularly extending gate 30 would require increased power from the vehicle mounting the plowing bucket 12, and increases the time needed to plow a given area.
As mentioned above, under the control of hydraulic ram 34, gate 30 can be position at any location within the predefined range of hydraulic ram 34. In accordance with a preferred embodiment of the present invention, gate 30 is positioned to outwardly extend at approximately 165 degrees from arm member 18 for the purposes of improved effectiveness and efficiency of plowing. However, it is fully contemplated that the gate 30 of the present invention may be employed to function at a variety of angles, outwardly extending from arm member 18, within the preferred range of 170 degrees. In addition, it would not be devoid from the present invention to engineer an extending wing 10 which is capable of extending gate 30 at an angle greater than 170 degrees from arm member 18 for the purposes of plowing.
Hydraulic rams 24 and 34 may be controlled to stop at virtually any position between a fully extended and a fully contracted position so as to maintain arm member 18 or gate 30 in a respective position. It is completely understood that hydraulic rams 24 and 34 may be provide to extend or reduce the range of movement of arm member 18 and gate 30 described herein. Further, hydraulic rams 24 and have been described in the present application as the actuating means for pivotally controlling extending wing 10 and outwardly extending gate 30, however, the teachings of the present invention are not limited thereto. Any suitable actuating means may be provided without being devoid from present invention.
Claims (14)
1. An extending wing for connection with a plowing bucket, comprising:
an arm member including a pivotal connection and a slot which allows said arm member to move with respect to said plowing bucket; and a pivoting means for positioning said arm member between a first and a second position; wherein said pivoting means attaches at a first end to said arm member and at a second end to said plowing bucket; whereby said second end of said pivoting means extends through said slot in said arm member and attaches to said plowing bucket in such an arrangement that said pivoting means is movable along said slot.
an arm member including a pivotal connection and a slot which allows said arm member to move with respect to said plowing bucket; and a pivoting means for positioning said arm member between a first and a second position; wherein said pivoting means attaches at a first end to said arm member and at a second end to said plowing bucket; whereby said second end of said pivoting means extends through said slot in said arm member and attaches to said plowing bucket in such an arrangement that said pivoting means is movable along said slot.
2. The extending wing of claim 1 wherein when said arm member is in said first position, said arm member is in an upwardly extending and reclined orientation and said pivoting means is contracted; and wherein when said arm member is in said second position, said arm is in a forwardly extending orientation and said pivoting means is lengthened.
3. The extending wing of claim 2 wherein in said upwardly extending and reclined orientation said pivoting means abuts an upper end of said slot and wherein said forwardly extending orientation, said pivoting means abuts a lower end of said slot.
4. The extending wing of claim 2 wherein when said arm member is in said upwardly extending and reclined orientation, a bottom portion thereof is positioned to provide a side wall for containing material when said plowing bucket is adapted for rearward movement.
5. The extending wing of claim 1 further comprising:
a gate in hinged connection with said arm member; and an actuating means in rotational connection with said arm member and said gate;
wherein said actuating means actuates movement of said gate with respect to said arm member.
a gate in hinged connection with said arm member; and an actuating means in rotational connection with said arm member and said gate;
wherein said actuating means actuates movement of said gate with respect to said arm member.
6. The extending wing of claim 5 wherein said gate is adaptable between a first and a second general position; wherein said first position said actuating means is extended and said gate is generally positioned as a longitudinal extension of said arm member;
and wherein said second position, said actuating means is contracted and said gate extends outwardly from said arm member and away from said plowing bucket.
and wherein said second position, said actuating means is contracted and said gate extends outwardly from said arm member and away from said plowing bucket.
7. The extending wing of claim 6 wherein said gate extends outwardly from said arm member within a range of 0 to 170 degrees when in said second position.
8. The extending wing of claim 7 wherein said plowing bucket may be a plow blade.
9. The extending wing of claim 5 wherein said pivoting means and said actuating means are a pair of hydraulic rams.
10. The extending wing of claim 5 wherein said arm member and said gate include a reinforced material along at least a bottom edge.
11. The extending wing of claim 10 wherein said arm member further includes a reinforced material along a rearwardly facing edge, wherein said rearwardly facing edge projects downwardly when said arm member is in said reclined orientation.
12. The extending wing of claims 10 or 11 wherein said reinforced material is hardened steel.
13. An extending wing for connection with a plowing bucket, comprising:
an arm member including a pivotal connection and a slot which allows said arm member to move with respect to said plowing bucket;
a gate in hinged connection with said arm member;
an actuating means in rotational connection with said arm member and said gate;
wherein said actuating means actuates movement of said gate with respect to said arm member; and a pivoting means for positioning said arm member between a first and a second position; wherein said pivoting means attaches at a first end to said arm member and at a second end to said plowing bucket; and wherein said second end of said pivoting means extends through said slot in said arm member and attaches to said plowing bucket in such an arrangement that said pivoting means is movable along said slot;
wherein connection with said plowing bucket, said extending wing is adaptable between a first transportable position, and a second plowing position; and wherein in said second plowing position, said gate means is positioned by said actuating means to extend outwardly from said arm member and away from said plow.
an arm member including a pivotal connection and a slot which allows said arm member to move with respect to said plowing bucket;
a gate in hinged connection with said arm member;
an actuating means in rotational connection with said arm member and said gate;
wherein said actuating means actuates movement of said gate with respect to said arm member; and a pivoting means for positioning said arm member between a first and a second position; wherein said pivoting means attaches at a first end to said arm member and at a second end to said plowing bucket; and wherein said second end of said pivoting means extends through said slot in said arm member and attaches to said plowing bucket in such an arrangement that said pivoting means is movable along said slot;
wherein connection with said plowing bucket, said extending wing is adaptable between a first transportable position, and a second plowing position; and wherein in said second plowing position, said gate means is positioned by said actuating means to extend outwardly from said arm member and away from said plow.
14. The extending wing of claims 5, 12 or 13 wherein said gate includes a declining forward edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2259841 CA2259841C (en) | 1999-01-21 | 1999-01-21 | Extending wing for a plowing bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2259841 CA2259841C (en) | 1999-01-21 | 1999-01-21 | Extending wing for a plowing bucket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2259841A1 CA2259841A1 (en) | 2000-07-21 |
| CA2259841C true CA2259841C (en) | 2001-08-14 |
Family
ID=4163218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2259841 Expired - Fee Related CA2259841C (en) | 1999-01-21 | 1999-01-21 | Extending wing for a plowing bucket |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2259841C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2597200B1 (en) * | 2011-11-25 | 2016-09-28 | Martin Schön | Variable snowplough blade |
-
1999
- 1999-01-21 CA CA 2259841 patent/CA2259841C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2259841A1 (en) | 2000-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5638618A (en) | Adjustable wing plow | |
| US6240660B1 (en) | Snow blade attachment | |
| CA2358354C (en) | Adjustable wing plow with fixed pivot | |
| US6442877B1 (en) | Plow with rear mounted, adjustable wing | |
| CA1118203A (en) | Reversible snowplow attachment | |
| US7481011B2 (en) | Double wing scraper | |
| US5899007A (en) | Adjustable wing plow | |
| US6408549B1 (en) | Adjustable wing plow | |
| US3808714A (en) | Double bladed snowplow with overload release | |
| US5860230A (en) | Snowplow with blade end snow deflectors | |
| US5655318A (en) | Snowplow with pivotable blade end extensions | |
| US3775877A (en) | Backplowing snowplow attachment | |
| US4074448A (en) | Hinged snowplow, conversion kit, and method therefor | |
| US4446639A (en) | Angling snow blade | |
| US6412200B1 (en) | Retractable side wing assembly | |
| CA2397309C (en) | Front-retracting plow | |
| US6158791A (en) | Snow removal device for roofs, flat surfaces and the like | |
| US8051587B2 (en) | Snowplow system, snow deflector apparatus and kit | |
| EP0365436B1 (en) | Reversible moldboard assembly | |
| US4073076A (en) | Snow plow blade guard | |
| US20210131059A1 (en) | Floating earth levelling blade assembly with shoes | |
| US20110232804A1 (en) | Shear linkage device | |
| CA2259841C (en) | Extending wing for a plowing bucket | |
| CA2323972C (en) | End gate for grader blade | |
| SE507556C2 (en) | Plow cutter holder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |