SNOW REMOVAL DEVICE
A plow device includes a plow member and a handle that is pivotally connected to the plow member. The plow member is generally U-shaped, and retains snow or other loose material as the U-shaped member slides over a ground surface.
This application claims the benefit of U.S. Provisional Application No. 61/594,093 filed on Feb. 2, 2012, entitled, SNOW REMOVAL DEVICE, the entire contents of which are incorporated herein by reference.
BACKGROUND OF THE INVENTIONVarious shovels have been developed for removing snow from sidewalks, driveways, and the like. Shovels have also been utilized to move other loose materials such as dirt, gravel, animal waste, or the like. Known shovels utilized to clear materials can be tiring to use, and may not clear loose material as quickly as desired.
SUMMARY OF THE INVENTIONOne aspect of the present invention is a manual plow device that is configured to be pushed on ground surface by a user in a forward direction. The plow device includes a plow having an upright rear wall defining a forwardly facing front side surface. The upright rear wall includes an elongated lower edge that is configured to slidably engage a ground surface in use, and opposite end portions. The plow also includes a pair of horizontally spaced apart end walls that extend forwardly from the opposite end portions of the rear wall. The end walls define inwardly-facing side surfaces and elongated lower edges that are configured to slidably engage a generally flat ground surface simultaneously with the lower edge of the upright rear wall. The front side surface of the upright rear wall and the inwardly facing side surfaces of the end walls together define a U-shape in plan view and a central space that is substantially open vertically whereby snow or other loose material is retained in the central space by the rear wall and the end walls in contact with a ground surface. The plow device further includes a handle having a first end having a grip that is configured to be grasped by a user, and a second end that is pivotally connected to the plow with sufficiently low rotational resistance to permit the handle to be rotated relative to the plow to thereby raise and lower the grip without rotating the plow when the only force resisting rotation of the plow is gravitational force acting on the plow. The plow may comprise a generally flat sheet of polymer material that has been formed into a U-shaped structure.
Another aspect of the present invention is a manual plow device configured to be pushed along a ground surface by a user. The plow device includes a U-shaped plow member having a central portion and a pair of spaced-apart end portions that extend transversely forward from the central portion in a cantilevered manner to define a central space that is open in upper and lower directions and in a forward direction. The plow device includes a handle that is pivotally connected to the plow member for a rotation about a generally horizontal axis relative to the plow member.
These and other features, advantages and objects of the present invention will be further understood and appreciated by those skilled in the art by reference to the following specification, claims and appended drawings.
For purposes of description herein, the terms “upper,” “lower,” “right,” “left,” “rear,” “front,” “vertical,” “horizontal,” and derivatives thereof shall relate to the invention as oriented in
A plow device 1 (
With further reference to
The plow 2 defines a central space 22 (
The end walls 6 have a length “L” (
Referring back to
Referring again to
In the illustrated example, the plow 2 is generally symmetric about a horizontal plane. Thus, the plow 2 can be flipped over such that upper edge 10 of upright rear wall 5 and upper edges 12 of end walls 6 are in contact with ground surface 4. Thus, if one of the lower edge surfaces 11 or 13 becomes uneven or worn, the plow 2 can be flipped over and used. In general, edges 11 and 13 tend to wear in a relatively even manner, such that the plow 2 can be utilized for a long period of time despite significant wear on edges 11 and 13 (or edges 10 and 12). In the event one of the edges becomes irregular, the plow 2 can be readily repaired by grinding or otherwise removing the irregular material to thereby straighten the edges 11, 13, 10, and/or 12. As the edges wear, chamfers or radiuses can be formed at corners 17 and 18 as required to ensure that plow 2 can travel over bumps and other irregularities in a ground surface.
Referring again to
The plow device 1 is particularly suited for snow removal from sidewalks, driveways, and the like. The plow device 1 permits rapid clearing of snow from a relatively large area, and it does not require shoveling or lifting of the snow. Furthermore, the plow device 1 can also be utilized to move other loose material such as gravel, wood chips, or the like. The plow device is particularly suited for clearing animal waste such as manure from barns or other such facilities.
With further reference to
Claims
1. A manual plow device configured to be pushed by a user to cause the plow device to slide on a ground surface in a forward direction, the plow device comprising:
- a plow having an upright rear wall defining a forwardly-facing front side surface, an elongated lower edge that is configured to slidably engage a generally flat ground surface, and opposite end portions, the plow including a pair of horizontally spaced-apart end walls that extend forwardly from the opposite end portions of the rear wall, the end walls defining inwardly-facing side surfaces and elongated lower edges that are configured to slidably engage a generally flat ground surface simultaneously with the elongated lower edge of the upright rear wall, and wherein the front side surface of the upright rear wall and the inwardly-facing side surfaces of the end walls together define a U-shape in plan view and a central space that is substantially open vertically in upper and lower directions whereby loose material disposed in the central space in contact with the ground surface is retained in the central space by the rear wall and the end walls; and
- a handle having a first end that includes a grip that is configured to be grasped by a user, and a second end that is pivotally connected to the plow with sufficiently low resistance to rotation so as to permit the handle to be rotated relative to the plow to raise and lower the grip without rotating the plow if the sole force resisting rotation of the plow is gravitational force acting on the plow.
2. The plow device of claim 1, wherein:
- the forwardly-facing front side surface of the plow is substantially planar.
3. The plow device of claim 2, wherein:
- the inwardly-facing side surfaces of the end walls are substantially planar.
4. The plow device of claim 3, wherein:
- the inwardly-facing side surfaces are orthogonal to the front side surface.
5. The plow device of claim 4, wherein:
- the elongated lower edge of the upright rear wall and the elongated lower edges of the end walls are linear and lie in an imaginary plane.
6. The plow device of claim 5, wherein:
- the forwardly-facing front side surface of the plow is orthogonal to the imaginary plane.
7. The plow device of claim 6, wherein:
- the upright rear wall and the end walls define linear upper edge surfaces whereby the plow can be rotated 180° and the linear upper edge surfaces can be positioned on a flat ground surface, and wherein the handle can be rotated to extend up and away from a ground surface.
8. The plow device of claim 7, wherein:
- the plow comprises a sheet of polymer material with planar opposite side surfaces, and wherein the upright rear wall is formed by a central portion of the sheet of polymer material, and the end walls are formed by opposite end portions of the sheet of polymer material.
9. The plow device of claim 8, wherein:
- the end walls include end edges extending between the lower edges and the linear upper edge surfaces to define upper and lower corners, and wherein the upper and lower corners have an edge surface that faces forwardly and downwardly such that the plow can go over bumps on a ground surface.
10. The plow device of claim 9, wherein:
- the edge surface of the corners comprises a radius of at least about 0.50 inches.
11. The plow device of claim 8, wherein:
- the handle comprises a U-shaped member with a pair of elongated members having first ends thereof rotatably connected to the plow, and a cross member extending between and interconnecting the elongated members.
12. The plow device of claim 11, wherein:
- the first ends of the elongated members are rotatably connected to the end walls of the plow.
13. The plow device of claim 11, wherein:
- the elongated members comprise first and second end sections, and a central section having opposite ends thereof detachably connected to first and second end sections whereby the handle can be disassembled into at least three separate sections to reduce the overall size of the handle when it is in a disassembled state.
14. The plow device of claim 8, wherein:
- the lower edge of the rear wall and the elongated lower edges of the end walls are linear.
15. The plow device of claim 14, wherein:
- the linear upper edge surface of the rear wall is parallel to the lower edge of the rear wall, and the linear upper edge surfaces of the end walls are parallel to the elongated lower edges of the end walls.
16. The plow device of claim 15, wherein:
- the linear upper edge surface of the rear wall is spaced-apart from the lower edge of the rear wall by about 6.0 to about 18.0 inches.
17. The plow device of claim 1, wherein:
- the inwardly-facing side surfaces of the end walls are spaced about 18.0 to 48.0 inches apart.
18. The plow device of claim 1, wherein:
- the end walls extend about 12.0 inches to about 24.0 inches forward from the forwardly-facing front side surface of the rear wall.
19. A manual plow device configured to be pushed along a ground surface by a user, the plow device comprising:
- a U-shaped plow member having a central portion and a pair of spaced-apart end portions that extend transversely forward from the central portion in a cantilevered manner to define a central space that is open in upper and lower directions and in a forward direction;
- a handle pivotally connected to the plow member for rotation about a generally horizontal axis relative to the plow member.
20. The plow device of claim 19, wherein:
- the plow member comprises a sheet of polymer material that is bent to form the end portions.
21. The plow device of claim 19, wherein:
- the handle comprises an upside-down U-shaped member having a pair of elongated members having ends thereof pivotally connected to the plow member.
Type: Application
Filed: Feb 1, 2013
Publication Date: Aug 8, 2013
Applicant: AG-CO PRODUCTS (St. Johns, MI)
Inventor: AG-CO Products (St. Johns, MI)
Application Number: 13/757,110