US20210363717A1 - Back drag system for plow trip blade - Google Patents
Back drag system for plow trip blade Download PDFInfo
- Publication number
- US20210363717A1 US20210363717A1 US17/322,967 US202117322967A US2021363717A1 US 20210363717 A1 US20210363717 A1 US 20210363717A1 US 202117322967 A US202117322967 A US 202117322967A US 2021363717 A1 US2021363717 A1 US 2021363717A1
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- United States
- Prior art keywords
- plow
- coupled
- back drag
- trip blade
- blade
- 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.)
- Abandoned
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- 230000007246 mechanism Effects 0.000 claims abstract description 92
- 239000000463 material Substances 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000003213 activating effect Effects 0.000 claims 1
- 230000000007 visual effect Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008713 feedback mechanism Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
Classifications
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- 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
- E01H5/061—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 by scraper blades
- E01H5/062—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 by scraper blades by scraper blades displaceable for shock-absorbing purposes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/815—Blades; Levelling or scarifying tools
- E02F3/8155—Blades; Levelling or scarifying tools provided with movable parts, e.g. cutting discs, vibrating teeth or the like
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/815—Blades; Levelling or scarifying tools
- E02F3/8157—Shock absorbers; Supports, e.g. skids, rollers; Devices for compensating wear-and-tear, or the like
-
- 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
- E01H5/068—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 by backblades
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/7609—Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers
Definitions
- Vehicles such as trucks, utilize vehicle accessories, such as plows, to move snow, dirt, sand, gravel, or other plowable materials.
- a vehicle operator drives the vehicle in a reverse direction of travel and can utilize the plow to pull material from a given area.
- the operator can utilize the bottom edge of a conventional plow to remove the material, such as snow, from the area.
- the operator can position the front of the vehicle adjacent to a volume of material, can lower the plow into the volume, and can drive the vehicle in reverse, thereby causing the rear portion of the plow to pull the material from the area.
- the operator can install a back drag plate onto a lower edge of the plow.
- the back drag plate is hinged and rotatable when connected to the rear base portion of the plow.
- the operator can lower the plow and back drag plate into a volume of material and can drive the vehicle in reverse, thereby causing the back drag plate to pull the material from the area.
- Conventional back dragging mechanisms can suffer from a variety of deficiencies.
- an operator can utilize the rear portion of the plow to pull material, such as snow, from a given area.
- the plow typically defines a curved geometry that is configured to push, rather than pull, material.
- a conventional plow can be relatively inefficient in back dragging material from a given area, thereby requiring the operator to attempt several passes over the same area to remove the material.
- the operator can install a back drag plate onto the plow which is designed for use during a back drag procedure.
- conventional back drag plates are relatively heavy and add to the overall weight of the plow.
- these back drag plates are typically hingedly and rotatably connected to the plow in a free-floating manner, sudden vehicle stops can cause the plates to swing against, and impact, the plow, thereby raising safety and potential damage concerns.
- a back drag system for a trip blade of a plow.
- the back drag system is configured to position a trip blade between a first, forward plowing position, and a second, reverse back drag position.
- the back drag system includes a back drag mechanism coupled to the trip blade of the plow and an actuation mechanism, such as a winch, coupled to the back drag mechanism.
- the back drag mechanism is configured as a horizontally-oriented plate and is disposed between the trip blade and a base portion of a blade return device, such as a set of compression springs or a hydraulic piston, carried by the plow.
- the back drag mechanism is configured as a set of vertically-oriented plates coupled to the trip blade and disposed in proximity to the blade return device carried by the plow.
- the operator can raise the plow away from a road or plowing surface and can activate the actuation mechanism to cause the back drag mechanism to rotate the trip blade toward a rear portion of the plow.
- the back drag system maintains the blade return device in a compressed state, which mitigates rotation of the trip blade toward a front portion of the plow during a back drag procedure. With such positioning, the back drag system orients the trip blade to define a back drag angle relative to the rear portion of the plow.
- the back drag system configures the trip blade to capture and pull a volume of material from a given area in a relatively efficient manner.
- the operator can activate the actuation mechanism to cause the back drag mechanism to rotate the trip blade toward a front portion of the plow to a plowing position.
- the back drag system can be utilized by conventional plows to provide efficient removal of material from a relatively tight area. Additionally, installation of the back drag mechanism does not substantially increase the weight of the plow.
- Embodiments of the innovation relate to a plow comprising a plow and a trip blade mechanism coupled to a plow body, the trip blade mechanism comprising a trip blade hingedly coupled to a base of the plow body and a blade return device coupled between the plow body and the trip blade.
- the plow comprises a back drag system coupled to the trip blade mechanism and configured to dispose the trip blade between a first plowing position relative to the plow body and a second back drag position relative to the plow body.
- FIG. 1 illustrates a rear view of a plow having a back drag system disposed in a first, forward plowing position, according to one arrangement.
- FIG. 2 illustrates a side view of the plow of FIG. 1 , according to one arrangement.
- FIG. 3 illustrates a rear view of the plow of FIG. 1 having the back drag system disposed in a second, back drag position, according to one arrangement
- FIG. 4 illustrates a side view of the plow of FIG. 3 , according to one arrangement.
- FIG. 5 illustrates a trip blade position indicator, according to one arrangement.
- FIG. 6 illustrates an embodiment of a portion of a back drag mechanism, according to one arrangement.
- FIG. 7 illustrates a perspective view of the back drag mechanism of FIG. 6 , according to one arrangement.
- FIG. 8 illustrates a rear view of the back drag mechanism of FIG. 6 , according to one arrangement.
- Embodiments of the present innovation relate to a back drag system for a trip blade of a plow.
- the back drag system is configured to position a trip blade between a first, forward plowing position, and a second, back drag position.
- the back drag system includes a back drag mechanism coupled to the trip blade of the plow and an actuation mechanism, such as a winch, coupled to the back drag mechanism.
- the back drag mechanism is configured as a horizontally-oriented plate and is disposed between the trip blade and a base portion of a blade return device, such as a set of compression springs or a hydraulic piston, carried by the plow.
- the back drag mechanism is configured as a vertically-oriented plate coupled to the trip blade and disposed in proximity to the blade return device carried by the plow.
- the operator can activate the actuation mechanism to cause the back drag mechanism to rotate the trip blade toward a rear portion of the plow.
- the back drag system maintains the blade return device in a compressed state, which mitigates rotation of the trip blade toward a front portion of the plow during a back drag procedure.
- the back drag system orients the trip blade to define a back drag angle relative to the rear portion of the plow.
- the back drag system positions the trip blade to capture and pull a volume of material from a given area in a relatively efficient manner.
- the operator can activate the actuation mechanism to cause the back drag mechanism to rotate the trip blade toward a front portion of the plow to a plowing position.
- the back drag system can be utilized by conventional plows to provide efficient removal of material from a relatively tight area. Additionally, installation of the back drag mechanism does not substantially increase the weight of the plow.
- FIGS. 1 and 2 illustrates a plow 10 which includes a plow body 11 having a front portion 12 configured to collect and/or displace snow or other materials and a rear portion 14 configured to be secured to the frame of a vehicle.
- the plow 10 also includes a trip blade mechanism 16 and a back drag system 18 coupled to the plow body 11 , according to one arrangement.
- the blade return device 21 can be configured as a set of compression springs 22 coupled to the rear portion 14 of the plow 10 between a plow frame element 23 and the trip blade 20 .
- the trip blade 20 compresses the compression springs 22 which absorb the impact load.
- the springs 22 can return to an extended position following impact to dispose the trip blade 20 to its operational position, as shown in FIG. 2 .
- the blade return device 21 can be configured as a set of hydraulic pistons (not shown) configured to absorb an impact load received by the trip blade 20 and to return the trip blade 20 to its operational, extended position following impact.
- the back drag system 18 is configured to actuate the trip blade mechanism 16 to dispose the trip blade 20 in a back drag position, with additional reference to FIGS. 3 and 4 .
- the back drag system 18 includes a back drag mechanism 25 coupled to the trip blade 20 of the plow 10 and an actuation mechanism 30 coupled to the back drag mechanism 25 .
- the back drag mechanism 25 can be configured in a variety of ways.
- the back drag mechanism 25 can be configured as a base 24 , such as a plate, coupled to the trip blade 20 via pins 26 , 28 in a substantially horizontal orientation relative to the trip plate 20 . With such orientation, as shown in FIG. 1 , the back drag mechanism 25 can be placed in physical communication with the compression springs 22 .
- the base 24 is disposed between the trip blade 20 and a base portion of each of the compression springs 22 .
- the actuation mechanism 30 can be configured in a variety of ways.
- actuation mechanism 30 can be configured as a winch 32 and a cable 34 .
- the actuation mechanism 30 is configured to apply or release a load on the back drag mechanism 25 to cause the trip blade 20 to rotate relative to the plow 10 .
- the cable 34 of the winch 32 can be coupled to the base 24 via a coupling member 36 which extends from the base 24 .
- Activation of the actuation mechanism 30 causes the winch 32 to rotate either in a first direction to shorten the length of the cable 34 and to rotate the trip blade 20 toward the rear 14 of the plow 10 or in a second direction to extend the length of the cable 34 and to rotate the trip blade 20 toward the front 12 of the plow 10 .
- the actuation mechanism 30 can also include a pulley 38 disposed between the cable 34 and the coupling member 36 . The pulley 38 is configured to reduce the load generated by the winch 32 on the cable 34 .
- the back drag system 18 maintains the trip blade mechanism 16 in a first position relative to the plow 10 .
- the compression springs 22 are disposed in an uncompressed state and the trip blade 20 is disposed in a plowing position, as shown.
- the plow 10 collects and pushes material, such as snow, from a given area.
- the back drag system 18 can dispose the trip blade mechanism 16 in a second position relative to the plow 10 .
- the vehicle operator can raise the plow 10 relative to the road or plowing surface 47 and can activate the actuation mechanism 30 .
- the actuation mechanism 30 generates a load on the back drag mechanism 25 along direction 42 , which, in turn, causes the trip blade 20 to rotate along direction 15 towards a rear portion 14 of the plow 10 .
- the back drag system 25 orients the trip blade 20 to define a back drag angle 46 relative to a horizontal (e.g., road or plowing) surface 47 .
- the back drag system 25 can dispose the trip blade 20 at an angle of between about 45° and 120° relative to the horizontal surface 47 . Further, the load generated by the actuation mechanism 30 causes the back drag mechanism 25 to translate along direction 42 which causes the base 24 to compress the compression springs 22 . When the trip blade 20 reaches the extended back drag position relative to the plow 10 , the back drag system 18 maintains the compression springs 22 in a compressed state, which mitigates rotation of the trip blade 20 toward the front portion 12 of the plow 10 during a back drag procedure.
- the vehicle operator can then lower the plow 10 relative to the plowing surface and perform a back drag operation.
- the trip blade 20 disposed in the extended position, as the vehicle moves the plow 10 in a reverse direction, such as along direction 44 , the trip blade 20 can pull material, such as snow, from the plowing surface 47 .
- the plow 10 is configured to remove material, such as snow, from a relatively narrow area in an efficient manner.
- the back drag system 18 can include a trip blade position indicator which is configured to identify the rotational positon of the trip blade 20 relative to the plow 10 .
- the back drag system 18 can include, as the trip blade position indicator, a visual trip blade position indicator 50 .
- the visual trip blade position indicator 50 can be configured as a rod or shaft having a first end 52 coupled to the trip blade 20 and a second end 54 extending form the plow body 11 and having markings 56 , 58 , 60 which correspond to the rotational position of the trip blade 20 relative to the plow body 11 .
- the visual trip blade position indicator 50 Prior to operation of the back drag system 18 , the visual trip blade position indicator 50 is positioned such that only the first marking 56 is observable by the vehicle operator. Visual identification of the first marking 56 can indicate to the vehicle operator that the trip blade 20 is disposed in the operational or plowing position as shown in FIGS. 1 and 2 .
- the visual trip blade position indicator 50 travels along direction 65 such that the second marking 58 can be observed by the vehicle operator.
- Visual identification of the second marking 58 indicates that the trip blade 20 is rotating toward the second back drag position as shown in FIGS. 3 and 4 .
- the trip blade position indicator 50 is described as a visual indicator, such description is by way of example only.
- the trip blade position indicator 50 can be configured as an electronic or mechanical indicator.
- the trip blade position indicator 50 can include a feedback mechanism which is configured to power down the actuation mechanism 30 once the trip blade 20 has rotated toward the second back drag position as shown in FIGS. 3 and 4 .
- the back drag mechanism 25 can be configured in a variety of ways.
- the back drag mechanism 25 can include one or more vertically-oriented plates 70 .
- each plate 70 can define a slot 72 configured to couple with a lip of the trip blade 20 at a rear portion 14 of the plow body 11 .
- such coupling orients the plate 70 in a substantially vertical orientation relative to the trip plate 20 and allows the back drag mechanism 25 to be disposed adjacent to the blade return device 21 (e.g., compression springs 22 ).
- each plate 70 can define an opening 74 configured to receive a connecting element 75 , such as a pin.
- the connecting element 75 is coupled to the first plate 70 - 1 and the second plate 70 - 2 and disposes the plates 70 - 1 , 70 - 2 at a distance from each other.
- the connecting element 75 extends between the two plates 70 and is attached to the actuation mechanism 30 via cable 34 .
- the vehicle operator can activate the actuation mechanism 30 to cause the winch 32 and cable to generate a load on the connecting element 75 of the back drag mechanism 25 .
- Such loading causes the plates 70 - 1 , 70 - 1 to rotate the trip blade 20 towards a rear portion 14 of the plow 10 which, in turn, causes the trip blade 20 to compress the compression springs 22 .
- the back drag system 18 maintains the compression springs 22 in a compressed state, which mitigates rotation of the trip blade 20 toward the front portion 12 of the plow 10 during a back drag procedure.
- the vehicle operator can activate the actuation mechanism 30 to cause the winch 32 and cable to reduce the load on the connecting element 75 of the back drag mechanism 25 to position the trip blade 20 to a plowing position, such as shown in FIG. 7 .
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Abstract
Embodiments of the innovation relate to a plow comprising a plow and a trip blade mechanism coupled to a plow body, the trip blade mechanism comprising a trip blade hingedly coupled to a base of the plow body and a blade return device coupled between the plow body and the trip blade. The plow comprises a back drag system coupled to the trip blade mechanism and configured to dispose the trip blade between a first plowing position relative to the plow body and a second back drag position relative to the plow body.
Description
- This patent application claims the benefit of U.S. Provisional Application No. 63/027,019, filed on May 19, 2020, entitled, “Back Drag System for Plow Trip Blade,” the contents and teachings of which are hereby incorporated by reference in their entirety.
- Vehicles, such as trucks, utilize vehicle accessories, such as plows, to move snow, dirt, sand, gravel, or other plowable materials.
- Conventional plows are configured to push or direct these materials from a particular area to a destination. For example, as the operator drives the vehicle forward, the plow pushes the material along the forward direction of travel in order to clear the material from a given area. However, for relatively small areas, such as driveways, the plow operator can be limited in his ability to manipulate the plow the materials. For example, in the case where a large volume of snow is located in a relatively small driveway, the plow operator may be unable to push the snow to a free or otherwise available location. As such, the operator may utilize a back drag procedure to pull the snow from the area.
- During a back dragging procedure, a vehicle operator drives the vehicle in a reverse direction of travel and can utilize the plow to pull material from a given area. In one arrangement, the operator can utilize the bottom edge of a conventional plow to remove the material, such as snow, from the area. For example, the operator can position the front of the vehicle adjacent to a volume of material, can lower the plow into the volume, and can drive the vehicle in reverse, thereby causing the rear portion of the plow to pull the material from the area. In another arrangement, the operator can install a back drag plate onto a lower edge of the plow. Typically, the back drag plate is hinged and rotatable when connected to the rear base portion of the plow. During operation, the operator can lower the plow and back drag plate into a volume of material and can drive the vehicle in reverse, thereby causing the back drag plate to pull the material from the area.
- Conventional back dragging mechanisms can suffer from a variety of deficiencies. As provided above, an operator can utilize the rear portion of the plow to pull material, such as snow, from a given area. However, the plow typically defines a curved geometry that is configured to push, rather than pull, material. As such, a conventional plow can be relatively inefficient in back dragging material from a given area, thereby requiring the operator to attempt several passes over the same area to remove the material.
- Also, as provided above, the operator can install a back drag plate onto the plow which is designed for use during a back drag procedure. However, conventional back drag plates are relatively heavy and add to the overall weight of the plow. Further, because these back drag plates are typically hingedly and rotatably connected to the plow in a free-floating manner, sudden vehicle stops can cause the plates to swing against, and impact, the plow, thereby raising safety and potential damage concerns.
- By contrast to conventional back dragging mechanisms, embodiments of the present innovation relate to a back drag system for a trip blade of a plow. The back drag system is configured to position a trip blade between a first, forward plowing position, and a second, reverse back drag position. For example, the back drag system includes a back drag mechanism coupled to the trip blade of the plow and an actuation mechanism, such as a winch, coupled to the back drag mechanism. In one arrangement, the back drag mechanism is configured as a horizontally-oriented plate and is disposed between the trip blade and a base portion of a blade return device, such as a set of compression springs or a hydraulic piston, carried by the plow. In another arrangement, the back drag mechanism is configured as a set of vertically-oriented plates coupled to the trip blade and disposed in proximity to the blade return device carried by the plow.
- In use, the operator can raise the plow away from a road or plowing surface and can activate the actuation mechanism to cause the back drag mechanism to rotate the trip blade toward a rear portion of the plow. When the trip blade reaches an extended back drag position relative to the plow, the back drag system maintains the blade return device in a compressed state, which mitigates rotation of the trip blade toward a front portion of the plow during a back drag procedure. With such positioning, the back drag system orients the trip blade to define a back drag angle relative to the rear portion of the plow. As such, during a back drag procedure, as an operator drives the vehicle in a reverse direction, the back drag system configures the trip blade to capture and pull a volume of material from a given area in a relatively efficient manner. Following completion of the back drag procedure, the operator can activate the actuation mechanism to cause the back drag mechanism to rotate the trip blade toward a front portion of the plow to a plowing position. Accordingly, the back drag system can be utilized by conventional plows to provide efficient removal of material from a relatively tight area. Additionally, installation of the back drag mechanism does not substantially increase the weight of the plow.
- Embodiments of the innovation relate to a plow comprising a plow and a trip blade mechanism coupled to a plow body, the trip blade mechanism comprising a trip blade hingedly coupled to a base of the plow body and a blade return device coupled between the plow body and the trip blade. The plow comprises a back drag system coupled to the trip blade mechanism and configured to dispose the trip blade between a first plowing position relative to the plow body and a second back drag position relative to the plow body.
- The foregoing and other objects, features and advantages will be apparent from the following description of particular embodiments of the innovation, as illustrated in the accompanying drawings in which like reference characters refer to the same parts throughout the different views. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of various embodiments of the innovation.
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FIG. 1 illustrates a rear view of a plow having a back drag system disposed in a first, forward plowing position, according to one arrangement. -
FIG. 2 illustrates a side view of the plow ofFIG. 1 , according to one arrangement. -
FIG. 3 illustrates a rear view of the plow ofFIG. 1 having the back drag system disposed in a second, back drag position, according to one arrangement -
FIG. 4 illustrates a side view of the plow ofFIG. 3 , according to one arrangement. -
FIG. 5 illustrates a trip blade position indicator, according to one arrangement. -
FIG. 6 illustrates an embodiment of a portion of a back drag mechanism, according to one arrangement. -
FIG. 7 illustrates a perspective view of the back drag mechanism ofFIG. 6 , according to one arrangement. -
FIG. 8 illustrates a rear view of the back drag mechanism ofFIG. 6 , according to one arrangement. - Embodiments of the present innovation relate to a back drag system for a trip blade of a plow. The back drag system is configured to position a trip blade between a first, forward plowing position, and a second, back drag position. For example, the back drag system includes a back drag mechanism coupled to the trip blade of the plow and an actuation mechanism, such as a winch, coupled to the back drag mechanism. In one arrangement, the back drag mechanism is configured as a horizontally-oriented plate and is disposed between the trip blade and a base portion of a blade return device, such as a set of compression springs or a hydraulic piston, carried by the plow. In another arrangement, the back drag mechanism is configured as a vertically-oriented plate coupled to the trip blade and disposed in proximity to the blade return device carried by the plow.
- In use, the operator can activate the actuation mechanism to cause the back drag mechanism to rotate the trip blade toward a rear portion of the plow. When the trip blade reaches an extended back drag position relative to the plow, the back drag system maintains the blade return device in a compressed state, which mitigates rotation of the trip blade toward a front portion of the plow during a back drag procedure. With such positioning, the back drag system orients the trip blade to define a back drag angle relative to the rear portion of the plow. As such, during a back drag procedure, as an operator drives the vehicle in a reverse direction, the back drag system positions the trip blade to capture and pull a volume of material from a given area in a relatively efficient manner. Following completion of the back drag procedure, the operator can activate the actuation mechanism to cause the back drag mechanism to rotate the trip blade toward a front portion of the plow to a plowing position. Accordingly, the back drag system can be utilized by conventional plows to provide efficient removal of material from a relatively tight area. Additionally, installation of the back drag mechanism does not substantially increase the weight of the plow.
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FIGS. 1 and 2 illustrates aplow 10 which includes aplow body 11 having afront portion 12 configured to collect and/or displace snow or other materials and arear portion 14 configured to be secured to the frame of a vehicle. Theplow 10 also includes atrip blade mechanism 16 and aback drag system 18 coupled to theplow body 11, according to one arrangement. - In order to mitigate damage to the
plow 10 or the associated vehicle, thetrip blade mechanism 16 is configured to absorb impact loads experienced during operation. For example, when plowing a material such as snow, theplow 10 may strike a hidden object, such as rocks or other debris concealed beneath a layer of snow. As such, in one arrangement, thetrip blade mechanism 16 includes atrip blade 20 hingedly coupled to a base of theplow 10 and to ablade return device 21. During operation, as thetrip blade 20 strikes an object, thetrip blade 16 rotates toward therear portion 14 of theplow body 11 about the hinge joint and alongdirection 15. Theblade return device 21 is configured to return thetrip blade 20 from a rotated position to an operational or plowing position, as shown inFIG. 2 . For example, theblade return device 21 can be configured as a set of compression springs 22 coupled to therear portion 14 of theplow 10 between aplow frame element 23 and thetrip blade 20. During operation, as thetrip blade 20 strikes an object and rotates alongdirection 15, thetrip blade 20 compresses the compression springs 22 which absorb the impact load. Thesprings 22 can return to an extended position following impact to dispose thetrip blade 20 to its operational position, as shown inFIG. 2 . In another example, theblade return device 21 can be configured as a set of hydraulic pistons (not shown) configured to absorb an impact load received by thetrip blade 20 and to return thetrip blade 20 to its operational, extended position following impact. - The
back drag system 18 is configured to actuate thetrip blade mechanism 16 to dispose thetrip blade 20 in a back drag position, with additional reference toFIGS. 3 and 4 . In one arrangement, theback drag system 18 includes aback drag mechanism 25 coupled to thetrip blade 20 of theplow 10 and anactuation mechanism 30 coupled to theback drag mechanism 25. - The
back drag mechanism 25 can be configured in a variety of ways. In one arrangement, theback drag mechanism 25 can be configured as abase 24, such as a plate, coupled to thetrip blade 20 viapins trip plate 20. With such orientation, as shown inFIG. 1 , theback drag mechanism 25 can be placed in physical communication with the compression springs 22. For example, thebase 24 is disposed between thetrip blade 20 and a base portion of each of the compression springs 22. - The
actuation mechanism 30 can be configured in a variety of ways. For example,actuation mechanism 30 can be configured as awinch 32 and acable 34. Theactuation mechanism 30 is configured to apply or release a load on theback drag mechanism 25 to cause thetrip blade 20 to rotate relative to theplow 10. For example, thecable 34 of thewinch 32 can be coupled to thebase 24 via acoupling member 36 which extends from thebase 24. Activation of theactuation mechanism 30 causes thewinch 32 to rotate either in a first direction to shorten the length of thecable 34 and to rotate thetrip blade 20 toward the rear 14 of theplow 10 or in a second direction to extend the length of thecable 34 and to rotate thetrip blade 20 toward thefront 12 of theplow 10. Theactuation mechanism 30 can also include apulley 38 disposed between thecable 34 and thecoupling member 36. Thepulley 38 is configured to reduce the load generated by thewinch 32 on thecable 34. - During a conventional plowing operation, as indicated in
FIGS. 1 and 2 , theback drag system 18 maintains thetrip blade mechanism 16 in a first position relative to theplow 10. For example, in the first positon, the compression springs 22 are disposed in an uncompressed state and thetrip blade 20 is disposed in a plowing position, as shown. As such, as the vehicle moves theplow 10 forward alongdirection 40, theplow 10 collects and pushes material, such as snow, from a given area. - During a back drag plowing operation, as indicated in
FIGS. 3 and 4 , theback drag system 18 can dispose thetrip blade mechanism 16 in a second position relative to theplow 10. For example, the vehicle operator can raise theplow 10 relative to the road or plowingsurface 47 and can activate theactuation mechanism 30. Theactuation mechanism 30 generates a load on theback drag mechanism 25 alongdirection 42, which, in turn, causes thetrip blade 20 to rotate alongdirection 15 towards arear portion 14 of theplow 10. When thetrip blade 20 reaches an extended back drag position relative to theplow 10, theback drag system 25 orients thetrip blade 20 to define aback drag angle 46 relative to a horizontal (e.g., road or plowing)surface 47. For example, theback drag system 25 can dispose thetrip blade 20 at an angle of between about 45° and 120° relative to thehorizontal surface 47. Further, the load generated by theactuation mechanism 30 causes theback drag mechanism 25 to translate alongdirection 42 which causes thebase 24 to compress the compression springs 22. When thetrip blade 20 reaches the extended back drag position relative to theplow 10, theback drag system 18 maintains the compression springs 22 in a compressed state, which mitigates rotation of thetrip blade 20 toward thefront portion 12 of theplow 10 during a back drag procedure. - Following positioning of the
trip blade 20 in the second, extended position, during operation, the vehicle operator can then lower theplow 10 relative to the plowing surface and perform a back drag operation. For example, with thetrip blade 20 disposed in the extended position, as the vehicle moves theplow 10 in a reverse direction, such as alongdirection 44, thetrip blade 20 can pull material, such as snow, from the plowingsurface 47. As such, theplow 10 is configured to remove material, such as snow, from a relatively narrow area in an efficient manner. - In one arrangement, the
back drag system 18 can include a trip blade position indicator which is configured to identify the rotational positon of thetrip blade 20 relative to theplow 10. In one arrangement, as shown inFIG. 5 , theback drag system 18 can include, as the trip blade position indicator, a visual tripblade position indicator 50. For example, the visual tripblade position indicator 50 can be configured as a rod or shaft having afirst end 52 coupled to thetrip blade 20 and asecond end 54 extending form theplow body 11 and havingmarkings trip blade 20 relative to theplow body 11. - Prior to operation of the
back drag system 18, the visual tripblade position indicator 50 is positioned such that only thefirst marking 56 is observable by the vehicle operator. Visual identification of thefirst marking 56 can indicate to the vehicle operator that thetrip blade 20 is disposed in the operational or plowing position as shown inFIGS. 1 and 2 . When the operator engages theback drag system 18, as theback drag system 18 rotates thetrip blade 20 relative to theplow 10 alongdirection 15, the visual tripblade position indicator 50 travels alongdirection 65 such that thesecond marking 58 can be observed by the vehicle operator. Visual identification of thesecond marking 58 indicates that thetrip blade 20 is rotating toward the second back drag position as shown inFIGS. 3 and 4 . Further operation of theback drag system 18 causes further translation of the visual tripblade position indicator 50 alongdirection 65 such that thethird marking 60 is observable by the vehicle operator. Such positioning of thesecond marking 58 indicates that thetrip blade 20 has rotated toward the second back drag position as shown inFIGS. 3 and 4 and that the operator can power down theactuation mechanism 30 to set the final positon of thetrip blade 20. - While the trip
blade position indicator 50 is described as a visual indicator, such description is by way of example only. In one arrangement, the tripblade position indicator 50 can be configured as an electronic or mechanical indicator. Further, in one arrangement, the tripblade position indicator 50 can include a feedback mechanism which is configured to power down theactuation mechanism 30 once thetrip blade 20 has rotated toward the second back drag position as shown inFIGS. 3 and 4 . - As provided above, the
back drag mechanism 25 can be configured in a variety of ways. In one arrangement, with reference toFIGS. 6-8 , theback drag mechanism 25 can include one or more vertically-orientedplates 70. For example, as shown inFIG. 6 , eachplate 70 can define aslot 72 configured to couple with a lip of thetrip blade 20 at arear portion 14 of theplow body 11. As indicated inFIGS. 7 and 8 , such coupling orients theplate 70 in a substantially vertical orientation relative to thetrip plate 20 and allows theback drag mechanism 25 to be disposed adjacent to the blade return device 21 (e.g., compression springs 22). Further, eachplate 70 can define anopening 74 configured to receive a connectingelement 75, such as a pin. As indicated inFIGS. 7 and 8 , the connectingelement 75 is coupled to the first plate 70-1 and the second plate 70-2 and disposes the plates 70-1, 70-2 at a distance from each other. The connectingelement 75 extends between the twoplates 70 and is attached to theactuation mechanism 30 viacable 34. - During operation, of the vehicle operator can activate the
actuation mechanism 30 to cause thewinch 32 and cable to generate a load on the connectingelement 75 of theback drag mechanism 25. Such loading causes the plates 70-1, 70-1 to rotate thetrip blade 20 towards arear portion 14 of theplow 10 which, in turn, causes thetrip blade 20 to compress the compression springs 22. When thetrip blade 20 reaches an extended back drag position relative to theplow 10, theback drag system 18 maintains the compression springs 22 in a compressed state, which mitigates rotation of thetrip blade 20 toward thefront portion 12 of theplow 10 during a back drag procedure. Following the back drag procedure, the vehicle operator can activate theactuation mechanism 30 to cause thewinch 32 and cable to reduce the load on the connectingelement 75 of theback drag mechanism 25 to position thetrip blade 20 to a plowing position, such as shown inFIG. 7 . - While various embodiments of the innovation have been particularly shown and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the innovation as defined by the appended claims.
Claims (15)
1. A plow, comprising:
a plow body;
a trip blade mechanism coupled to the plow body, the trip blade mechanism comprising:
a trip blade hingedly coupled to a base of the plow body, and
a blade return device coupled between the plow body and the trip blade; and
a back drag system coupled to the trip blade mechanism and configured to dispose the trip blade between a first plowing position relative to the plow body and a second back drag position relative to the plow body.
2. The plow of claim 1 , wherein the blade return device comprises a set of compression springs disposed between the plow body and the trip blade.
3. The plow of claim 1 , wherein the back drag system comprises:
an actuation mechanism coupled to the plow body; and
a back drag mechanism coupled between the actuation mechanism and the trip blade.
4. The plow of claim 3 , wherein the actuation mechanism comprises:
a winch coupled to the plow body; and
a cable carried by the winch, the cable coupled to the back drag mechanism.
5. The plow of claim 3 , wherein the back drag mechanism comprises:
a base coupled to the trip blade, the blade return device disposed between the base and the plow body; and
a coupling member extending from the base, the actuation mechanism coupled to the back drag mechanism by the coupling member.
6. The plow of claim 3 , wherein the back drag mechanism comprises:
a first plate coupled to the trip blade;
a second plate coupled to the trip blade; and
a connecting element coupled to the first plate and the second plate and disposing the first plate and the second plate at a distance from each other, the actuation mechanism coupled to the back drag mechanism by the connecting element.
7. The plow of claim 1 , further comprising a trip blade position indicator coupled to the trip blade, the trip blade position indicator configured to identify a rotational position of the trip blade.
8. The plow of claim 7 , wherein the trip blade position indicator comprises:
a shaft having a first end coupled to the trip blade and a second end extending from the plow body and having a set markings which correspond to the a rotational position of the trip blade.
9. A back drag system, comprising:
an actuation mechanism; and
a back drag mechanism coupled to the actuation mechanism and configured to be coupled to a trip blade of a plow;
the actuation mechanism and back drag mechanism configured to dispose the trip blade between a first plowing position relative to the plow and a second back drag position relative to the plow.
10. The back drag system of claim 9 , wherein the actuation mechanism comprises:
a winch coupled to the plow body; and
a cable carried by the winch, the cable coupled to the back drag mechanism.
11. The plow of claim 9 , wherein the back drag mechanism comprises:
a base configured to be coupled to the trip blade; and
a coupling member extending from the base, the actuation mechanism coupled to the back drag mechanism by the coupling member.
12. The back drag system of claim 9 , wherein the back drag mechanism comprises:
a first plate configured to be coupled to the trip blade;
a second plate configured to be coupled to the trip blade; and
a connecting element coupled to the first plate and the second plate and disposing the first plate and the second plate at a distance from each other, the actuation mechanism coupled to the back drag mechanism by the connecting element.
13. The back drag system of claim 9 , further comprising a trip blade position indicator configured to be coupled to the trip blade, the trip blade position indicator configured to identify a rotational position of the trip blade.
14. The back drag system of claim 13 , wherein the trip blade position indicator comprises:
a shaft having a first end coupled to the trip blade and a second end extending from the plow body and having a set markings which correspond to the a rotational position of the trip blade.
15. A method for performing a back drag plowing operation, comprising:
disposing a plow of a vehicle in a raised position relative to a plowing surface;
activating an actuation mechanism of a back drag system to rotate a trip blade of the plow from a first plowing position relative to the plow body and a second back drag position relative to the plow body;
lowering the plow relative to the plowing surface; and
moving the vehicle in reverse to cause the trip blade to pull material from the plowing surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/322,967 US20210363717A1 (en) | 2020-05-19 | 2021-05-18 | Back drag system for plow trip blade |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US202063027019P | 2020-05-19 | 2020-05-19 | |
US17/322,967 US20210363717A1 (en) | 2020-05-19 | 2021-05-18 | Back drag system for plow trip blade |
Publications (1)
Publication Number | Publication Date |
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US20210363717A1 true US20210363717A1 (en) | 2021-11-25 |
Family
ID=78608680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US17/322,967 Abandoned US20210363717A1 (en) | 2020-05-19 | 2021-05-18 | Back drag system for plow trip blade |
Country Status (1)
Country | Link |
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US (1) | US20210363717A1 (en) |
-
2021
- 2021-05-18 US US17/322,967 patent/US20210363717A1/en not_active Abandoned
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