Various embodiments are directed to methods and apparatus for roof shingle removal.
Removing shingles from a roof is strenuous, physical, and hazardous work. Existing tools are either much like serrated shovels or pitchforks requiring physical force applied to shove them under the shingles and pull or lever upward to remove them; or they are motorized, dramatically increasing the weight of the tools and requiring cords, hoses, or other means of powering.
There is a need for a shingle removal tool that reduces the force required without greatly increasing the weight or adding cords or other power sources to the hazardous environment on a roof. There is also a need to reduce the hazard of roof removal, for example, on steeper roofs.
A tool and method is provided for removing roof shingles. The tool has a triangular frame, and may include multiple triangles. In some embodiments, the triangles include a first elongate member, a second elongate member attached to the first member, a third elongate member attached to the first and second members, the third member less than half as long as the first member and less than half as long as the second member. An attachment surface configured to receive a blade may be included, the attachment surface being proximate to an attachment of the first elongate members and the second elongate members near the acute angle of the triangles. Some embodiments may include a backplate connecting said third members of said triangles.
In some embodiments, two or more bearings attach to the frame, and two or more wheels attach to the bearings. A plurality of the triangles may have a bracket formed on the second member near to the third member, the bracket having a hole and the bearings are attached to the frame through the hole. A blade may be attached to the frame at said attachment surface. The blade may be replaceable. The blade may be serrated. The blade may be horizontal and may be attached to the attachment surface at an angle of approximately 140 degrees. The blade height may be adjustable. In some embodiments a handle may be attached at said backplate. Said handle may be of adjustable length. Said tool can be used sitting or standing up slope from the tool, by pushing with the body against said handle to slide the blade under shingles or other roofing material, pushing the handle down to lift roofing material, and repeating.
A means for removing roofing material. One embodiment may include a triangle shaped head with a thin front edge and a wider back edge. It may also include a means of pushing said head forward and downward and a means of reducing the friction when pushing forward.
A shingle removal tool may reduce the work required to remove shingles without dramatically increasing the weight of the tool or adding cords or other power sources, such as, for example, in the hazardous environment on a roof. It may also help reduce the hazard of roof removal, for example on steeper roofs.
A wedge shape is made up of multiple triangles connected by a backplate at the back and a blade attachment plate at the front which allows for a blade to be attached at the front, smallest angle of the triangle. In some embodiments, a handle can be attached at the backplate. In some embodiments, wheels can be attached on the bottom of the edge at brackets that are on the lower side of some of the triangles.
The blade slides under the shingles when pushed forward. Because it is serrated, it is not blocked by nails. The wheels make this movement easier. When the blade and part of the triangular frame are under the shingles, moving the far end of the handle down lifts the shingles and nails from the roof. The wheels can be used as a fulcrum to create leverage and reduce the force required to lift the shingles and nails off the roof. The shingles and nails are therefore detached more easily. Using less force on a slanted surface helps the user maintain balance and reduces the risk of falling. On steeper roofs, or in any other situation that warrants it, the handle can be shortened to allow the user to operate from a sitting position. The position of the blade along the front of the wedge can also be adjusted up or down. This changes the height of the handle and the angle of the handle in regard to the surface of the roof. This roof removal tool can be used moving from the peak of the roof down, rather than across the roof, which applies gravity to the users advantage rather than working against it.
The advantages include a reduction of the force required to lift the shingle and nails from the roof surface and adjustability of the blade and handle. The reduction of force required improves safety and allows the work to be done with less time and effort. The tool can be used by pushing forward with the body rather than the hands. This reduces the work even more. Three men can typically tear off 10-12 squares per hour and two layers of shingles can be torn off as quickly as one. Back and elbow pain normally associated with shingle tear off are reduced or even eliminated. The adjustability can increase the comfort and safety of roof removal.
In this embodiment the frame and triangles are made of flat metal. Other embodiments could be made from tubing, or other appropriate elongated shapes and from any suitably strong and rigid material. Acceptable materials include, without limitation, mild steel, carbon steel, alloy steel, tungsten, silicon carbide, titanium, and fiberglass.
One embodiment shows a two hand grip, but different embodiments can have other grips, or no grip. Dimensions are shown, but other embodiments can have different dimensions.
Although the preferred embodiments of the present invention have been described herein, the above description is merely illustrative. Further modification of the invention herein disclosed will occur to those skilled in the respective arts and all such modifications are deemed to be within the scope of the invention as defined by the appended claims.
The present application claims priority to U.S. Provisional Application 61/226,370 filed on Jul. 17, 2009, for inventor Kevin Joel Kubly, titled “ROOF SHINGLE TEAR OFF TOOL” which is hereby incorporated by reference.
Number | Date | Country | |
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61226370 | Jul 2009 | US |