CA2307797C - Side plow assembly - Google Patents

Side plow assembly Download PDF

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Publication number
CA2307797C
CA2307797C CA002307797A CA2307797A CA2307797C CA 2307797 C CA2307797 C CA 2307797C CA 002307797 A CA002307797 A CA 002307797A CA 2307797 A CA2307797 A CA 2307797A CA 2307797 C CA2307797 C CA 2307797C
Authority
CA
Canada
Prior art keywords
blade
turntable
plow assembly
side plow
assembly
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
Application number
CA002307797A
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French (fr)
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CA2307797A1 (en
Inventor
Ron Allen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RON ALLEN CONSTRUCTION Ltd
Original Assignee
RON ALLEN CONSTRUCTION Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RON ALLEN CONSTRUCTION Ltd filed Critical RON ALLEN CONSTRUCTION Ltd
Priority to CA002307797A priority Critical patent/CA2307797C/en
Publication of CA2307797A1 publication Critical patent/CA2307797A1/en
Application granted granted Critical
Publication of CA2307797C publication Critical patent/CA2307797C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01HSTREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E01H5/06Apparatus 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
    • E01H5/067Apparatus 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 by side-wing snow-plough blades
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01HSTREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E01H5/06Apparatus 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
    • E01H5/065Apparatus 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

Abstract

A side plow assembly for attaching to a motor vehicle. The side plow assembly comprises of a blade for plowing, a front plate connected to the vehicle, and a turntable for coupling the blade to the front plate. A displacement mechanism rotates the turntable about a pivot point, thereby displacing the blade between a horizontal plowing position and a vertical storage position. A rod is coupled at a first end to a distal end of the blade and at a second end to the plow. The rod maintains the blade in a predetermined position when the blade extends laterally from the vehicle.

Description

SIDE PLOW ASSEMBLY
The present invention relates generally to side plow assemblies for mounting on motor operated vehicles and the like.
BACKGROUND OF THE INVENTION
It is common practice to remove snow from streets through the use of an angled snow plow blade. Removing the snow slows down the plowing process, which is generally a slow process to begin with. A slow snow removal process is particularly undesirable when there is a high volume of traffic.
1o The angled snow plow blade channels snow away from a street side of the blade towards a curb edge of the blade. The snow is deposited as a ridge running along the curb. The snow ridge formed at the curb is generally unobjectionable and remains there until it is hauled away at a later, more convenient time, or until it melts. However, the snow ridge causes problems where it blocks laneways, driveways, adjoining streets, and the like (referred to collectively as pathways).
U.S. patent number 5,903,986 discloses a snow plow with a side gate. The side gate is employed when the snow plow passes the pathways. The gate extends from the curb 2o edge of the plow blade and momentarily stops the flow of snow from the plow blade.
The gate therefore prohibits the snow ridge from forming when it is extended.
However, since the snow is being channeled towards the gate, the force of the snow makes it difficult to extend and retract the gate. Furthermore, the snow plow as described is not the only snow plow currently in use. Thus there are still situations that require the removal of the snow ridge.
U.S. patent number 5,903,987 discloses a snow plow assembly for mounting on trucks or the like. The assembly is mounted on a side of the truck with a blade in a stored position.
The blade is extended outwardly from side of the truck to an operative position. When in 3o the operative position, the blade can clear the snow ridge from the pathways. However, since the blade is stored along the side of the truck, it is possible that the blade can come into contact with obstacles causing damage to both the blade and the obstacle.
Such obstacles include parked cars, moving cars, street signs, fire hydrants, and the like. This may be further exacerbated by the fact that when the snow plow is in use, streets are typically narrower due to the accumulation of fallen snow. Further, deploying the blade from its stored position to its operative position requires significant space for the blade to swing out. Force will also required to deploy the blade since it will have to move snow out of its way while being deployed.
It is an object of the present invention to obviate or mitigate at least some of the 1o aforementioned problems.
SUMMARY OF THE INVENTION
In accordance with the present invention, there is provided a side plow assembly for attaching to a vehicle. The side plow assembly comprises a blade for plowing, a front plate connectable to the vehicle and a turntable for coupling the blade to the front plate.
The turntable is rotatable about a pivot point. A displacement mechanism rotates the turntable. The displacement mechanism is couplable to the front plate by a first coupling and couplable to the turntable by a second coupling. A rod is couplable at a first end to the distal end of the blade and at a second end to the plow. The rod maintains the blade in a predetermined position, that is, extending laterally from the vehicle.
The turntable rotates said blade between a horizontal position and a vertical position.
BRIEF DESCRIPTION OF THE DRAWINGS
An embodiment of the invention will now be described by way of example only, with reference to the following drawings in which:
Figure 1 is a front view of a snow plow with a blade in a stored position;
Figure Z is a front view of the snow plow similar to figure I with a blade in an operative position;
Figure 3 is an exploded view of the blade of the snow plow;
3o Figure 4 is perspective view of the rear of the blade of the snow plow;
Figure 5 is a front view of a turntable and front plate assembly of the snow plow;
and Figure 6 is a section 6.6 plan view of the turntable and front plate assembly of figure 5.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Refernng to Figure 1, a snow plow is illustrated generally by the numeral 10.
The snow plow includes a front plate 12 connected to a front of a vehicle 11. A
turntable 18 is located at one end of the front plate 12, preferably at an end of the front plate 12 that is closer to a curb 13. The turntable 18 is pivotable about a pivot point 19, which is preferably at a center of the turntable 18. A raised central plate 30 is secured to the turntable 18 and supports a connected crank arm 16. The crank arm 16 lies in a plane that is parallel and off set to the turntable 18. The turntable 18 is rotated by a hydraulic cylinder 14, which is connected between the crank arm 16 and the front plate 12. A first pin joint 22 is used to connect the crank arm 16 to one end of the hydraulic cylinder 14 and a second pin joint 24 is used to connect another end of the hydraulic cylinder to a plate 31, which is secured to the front plate 12. The turntable 18, connected central plate 30, and the plate 31 are proportioned so that the hydraulic cylinder 14 lies in the same plane as the crank arm 16. Attached to the turntable is a blade 20. The hydraulic cylinder 14 cooperates with the crank arm 16 to pivot the turntable 18 about the pivot 2o point 19. In this manner, the attached blade 20 is displaced between a stored position shown in Figure 1 and an operative position shown in Figure 2.
Referring to figure 3, an exploded view of the blade 20 is shown. The bottom of the blade 20 is coupled to a boom 32 using several nut and bolt assemblies 34. A
hinge 35 is formed by a pair of bores 46 attached to a proximate end of the boom 32 and a pair of bores 46 attached to the turntable 18 via a pair of plates 47, which are welded to the central plate 30. A pin 48 is inserted through the bores 46 for hingedly attaching the boom 32 to the turntable 18 and serves as an axis of rotation for the hinge 35, as the blade 20 swings between the operative and stored positions. An elongate, spring-loaded push 3o rod 36 extends along the side of the snow plow and is coupled between a snow plow stabilizer (not shown) and a distal end of the boom 32. The stabilizer is typically located at the rear of the snow plow 10. The push rod 36 has a ball and socket joint 38 at each end so that the blade 20 can be swung between the operative and stored positions, without disconnecting the push rod 36. The push rod 36 includes two telescoping rods 40, 42.
The first rod 40 has a pair of pinholes 44 and the second rod 42 has several pairs of pinholes 44. The length of the push rod 36 is adjusted by aligning the pair of pinholes 44 on the first rod 40 with one of the pairs of pinholes 44 on the second rod 42.
A pin is inserted through the pinholes 44 for maintaining the length of the push rod 36.
Since the blade 20 is hingedly attached to the turntable 18, it is possible for the blade 20 to rotate about the axis defined by the hinge 35. Therefore, the push rod 36 is employed to maintain the blade 20 at a fixed angle relative to the plates 47, once the blade 20 is placed in either the operative or stored position. The push rod 36 is spring-loaded for providing shock absorption for the blade 20, when placed in the operative position.
Thusly, there is some variation allowed in the angle maintained by the push rod 36, although this angle typically does not change by more than a few degrees during plowing.
The length of the push rod 36 can be easily modified as described above for adjusting the angle between the blade 20 and the plates 47. The longer the push rod 36, the further forward the distal end of the blade will lie. Therefore, adjusting the length of the push rod 36 changes the direction the snow is plowed. Furthermore, the push rod 36 is of sufficient length in combination with the flexible hinge 35, so that warping of the push rod 36 is negligible as the blade 20 moves between the operative and stored positions.
Referring to figure 4, the rear of the blade 20 is shown in its operative position. The top of the blade 20 is attached to the boom 32 via several springs 50. The springs 50 are in a typically in a relaxed state, and the blade 20 is in a generally upright position. 'Che bottom of the blade 20 is attached to the boom 32 via the nut and bolt assemblies 34, as shown in figure 3. The blade 20 is capable of rotating about the nut and bolt assemblies 34, but is held in place by the springs 50. If the blade 20 hits a raised obstruction while it 3o is plowing, the blade 20 pivots slightly forward, extending the springs 50.
Once the obstruction is passed, the springs 50 force the blade 20 to return to the upright position.
This feature further enhances the shock absorbing quality provided by the spring-loaded push rod 36. Allowing the blade 20 to pivot reduces the possibility of damaging the blade 20 by imparting some of the momentum of impacting obstructions from the blade 20 to the springs 50.
The front plate 12 and turntable 18 are preferably made of steel and are further illustrated in figures 5 and 6. A rear surface 50 of the turntable 18 is in general contact with the front plate 12. A set of brackets 52 are fastened to the front plate 12, and are slidably connected to the front surface 53 of the turntable 18. A sacrificial wear plate 54 can be 1o interposed between the brackets 52 and the surface 53, which permit slidable displacement between the turntable 18 and the brackets 52. The material of the wear plate 54, such as brass, can be chosen so that wear damage to the surface 53 is minimized during rotation of the turntable 18 about the pivot point 19.
The nut and bolt assembly 51 of the pivot point 19 further includes a shaft 58, a bolt 60, and bearings 64. The bearings 64 allow rotation of turntable 18 about the shaft 58.
Therefore, the nut and bolt assembly 51 operatively couples the turntable 18 to the front plate 12. Once coupled, clearance between the rear surface 50 of this turntable and the front plate 12 is minimized, so that bending stresses on the shaft 58 is inhibited.
If the vehicle maintains the blade 20 in the stored position for extended periods, the actuator 14 is the only device preventing the blade 20 from falling and may fail.
Therefore, a chain 56 can be temporarily connected between the vehicle frame 58 and the blade 20, for locking the blade 20 while it is in the stored position. The chain 56 can be used to reduce stress on the actuator 14, if desired.
Refernng once again to figure 1, the hydraulic cylinder 14 is not extended and the blade 20 is in a generally vertical stored position. The width of the blade 20 is preferably stored within the track of the snow plow 10, although this is not necessarily true.
3o Further, the blade 20 is preferably stored such that it is not directly in front of a driver.
Therefore, the driver has a sufficient view for driving safely.
When the hydraulic cylinder 14 is extended, the crank arm 16 and the turntable 18 are rotated. The blade 20 is lowered into a generally horizontal operative position as shown in figure 2. The pivot axis for the blade is the pivot point 19 on the turntable 18. When in the operative position, the blade 20 extends laterally from the snow plow 10. Since the hydraulic cylinder 14 and the crank arm 16 lie in a plane offset to that of the raised plate 30, the hydraulic cylinder 14 will not inhibit rotation of the turntable 18 or the plate 30 as the cylinder 14 extends.
Furthermore, in an alternative embodiment, a second snow plow blade (not to shown) can be attached to the front plate 12 for removing snow from a street. The second blade can be an angled blade, if desired.
Although the invention has been described with reference to certain specific embodiments, various modifications thereof will be apparent to those skilled in the art without departing from the spirit and scope of the invention as outlined in the claims appended hereto.

Claims (18)

1. A side plow assembly for attaching to a vehicle comprising:
a blade for plowing;
a front plate connectable to said vehicle;
a turntable for coupling said blade to said front plate, said turntable being rotatable about a pivot point;
a displacement mechanism for rotating said turntable, said displacement mechanism being couplable to said front plate by a first coupling and couplable to said turntable by a second coupling; and a rod couplable at a first end to the distal end of said blade and at a second end to said plow, for maintaining said blade when placed in a predetermined position, said position extending laterally from said vehicle;
wherein said turntable rotates said blade between a horizontal position and a vertical position.
2. A side plow assembly as defined in claim 1, wherein said displacement mechanism is a hydraulic cylinder.
3. A side plow assembly as defined in claim 2, wherein said first coupling is a pin joint.
4. A side plow assembly as defined in claim 2, wherein said second coupling is a pin joint.
5. A side plow assembly as defined in claim 1, wherein said blade is attached to a boom, said boom being coupled to said turntable by a hinge mechanism, said hinge mechanism allowing said boom to rotate horizontally.
6. A side plow assembly as defined in claim 5, wherein said blade comprises a front face for plowing and a rear face for coupling said blade to said boom, the lower portion of said rear face of said blade is coupled to said boom using a pivot assembly and the
7 upper portion of said rear face of said blade is coupled to said boom using a resilient member, wherein said resilient member extends and allows said blade to rotate from a predetermined position about said pivot assembly if an obstacle is encountered and returns said blade to said predetermined position after said obstacle has passed.
7. A side plow assembly as defined in claim 5, wherein said rod is resiliently loaded for providing shock absorption.
8. A side plow assembly as defined in claim 7, wherein said rod is coupled to said vehicle.
9. A side plow assembly as defined in claim 8, wherein said push rod having a length comprising telescopic cylinders.
10. A side plow assembly as defined in claim 9, wherein said cylinders have at least a pair of pinholes, wherein the length of said push rod is adjusted by axially moving said cylinders for aligning said pinholes and inserting a pin for maintaining the length of said push rod.
11. A side plow assembly as defined in claim 1, wherein said pivot point comprises a nut and bolt assembly comprising a shaft for inserting through a bore in said turntable, a bolt for securing to said shaft for coupling said turntable with said front plate, and bearings for allowing the rotation of said turntable about said shaft.
12. A side plow assembly as defined in claim 1 further comprising a lock for maintaining said blade in a vertical position.
13. A side plow assembly as defined in claim 12, wherein said lock comprises:
a chain connected between said vehicle and a portion of said blade.
14. A side plow assembly as defined in claim 1, wherein a second blade is secured to said front plate for plowing.
15. A side plow assembly as defined in claim 14, wherein said second blade is an angled snow plow blade.
16. A side plow assembly as defined in claims 1 to 15 further comprising at least one bracket for slidably coupling said turntable to said frontplate.
17. A side plow assembly as defined in claim 16, wherein a sacrificial member is interposed between said bracket and said turntable.
18. A side plow assembly as defined in claim 17, wherein said sacrificial member is made of brass.
CA002307797A 2000-05-04 2000-05-04 Side plow assembly Expired - Fee Related CA2307797C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002307797A CA2307797C (en) 2000-05-04 2000-05-04 Side plow assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002307797A CA2307797C (en) 2000-05-04 2000-05-04 Side plow assembly

Publications (2)

Publication Number Publication Date
CA2307797A1 CA2307797A1 (en) 2001-11-04
CA2307797C true CA2307797C (en) 2005-12-13

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CA002307797A Expired - Fee Related CA2307797C (en) 2000-05-04 2000-05-04 Side plow assembly

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107761650B (en) * 2016-08-29 2019-03-19 温州摩思洁具有限公司 A kind of cleaning snow in winter device

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