This disclosure is related to a device for clearing snow from a roof, particularly to a device with a blade configured to glide closely above roof shingles while dislodging and channeling away a majority of snow from the roof surface.
The statements in this section merely provide background information related to the present disclosure. Accordingly, such statements are not intended to constitute an admission of prior art.
Heavy snow accumulating upon a roof can damage the roof through the weight of the snow. Melting and refreezing snow upon a roof can cause “ice dams” which can damage the roof and cause the roof to leak. Accumulated snow on a roof can fall upon a person standing under the roof
A person can stand on a roof with a shovel and use the shovel to remove snow. This can be a dangerous and labor intensive process. Long handled tools can be used to sweep or pull snow from a roof. However, known tools frequently include complicated mechanisms that stand out at sharp angles away from the tool handle, frequently creating easily broken tools. Other tools include heavy device that are difficult for an average person to wield or include wheels that roll upon the shingles of the roof, potentially damaging the shingles.
A snow removal device is disclosed for removing snow from a roof surface. The device includes a multi-angled tool comprising a plurality of panels. The panels include a first panel portion configured to dig into the snow, a second panel portion connected to a trailing edge of the first panel portion, the second panel portion being angled to compact a small amount of snow between the tool and the roof surface, and a third panel portion connected to a trailed edge of the second panel portion, the third panel portion being configured to slide over the compacted small amount of snow.
One or more embodiments will now be described, by way of example, with reference to the accompanying drawings, in which:
Referring now to the drawings, wherein the showings are for the purpose of illustrating certain exemplary embodiments only and not for the purpose of limiting the same,
The illustrated handle 40 can take a number of different forms. For example, one or a number of square or circular cross section poles can be used to construct the handle. In one embodiment, a user may add to the pole in exemplary five foot sections to make the pole as long as is necessary. In one embodiment the handle can include one circular section pole inserted within another larger circular section pole, with a twist lock mechanism allowing the user to select the overall length of the pole by pulling one pole partially out of the other pole and using the twist lock mechanism to fix the poles together. In a similar embodiment, the outer pole can have a constriction band at the interface with the inner pole, and a fastener on the constriction band can be used to tighten and thereby fasten the band to the inner pole, thereby locking the poles together in an overall desired length. The blade tool affixed to the end of the tool handle is configured to be thrust into a snow pack upon a roof to dislodge snow from the snow pack.
As portion 10 is thrust into snow, some snow will go under portion 10 into region 110. This snow in region 110 will come into contact with portion 20 which is slanted upwards in relation to parallel line 102. As snow comes into contact with portion 20, it is compressed against roof surface 100. Finally, the compressed snow of region 110 enters region 115 below portion 30. Portion 30 can be flat or slightly angled upward in relation to parallel line 102. Portion 30 rides upon a layer of compressed snow in region 115, such that the device 5 does not or infrequently contacts the roof surface 100.
Snow passing over portion 10 is broken up by the force of gravity and the impact of device 5, and falls over the device into region 120 where the broken up snow can fall down the angled incline of the roof surface.
The blade tool of the illustrated device is illustrated suspended over a roof surface including layer shingles common to modern housing. In the illustrated embodiment, the tool has three distinct angled sections. The first, portion 10, includes a substantially planar surface that is thrust edge first into the snow bank on the roof. In one embodiment, the planar surface can be parallel to the handle of the device. In the illustrated embodiment, the portion 10 includes a slight angle greater than zero with respect to the handle, in the direction of the roof surface. In most cases, the handle will be operated substantially parallel to the roof surface. In such use, portion 10 will dig into the snow bank at a slight angle toward the roof surface, thereby tending to keep the tool close to the roof surface and not drift away from the roof surface. Further, the weight of the snow above the tool acting on portion 10 will further keep the tool close to the roof. Such a drifting away would cause the tool to leave behind a large amount of snow on the roof. Portion 20 is angled, such that snow being pushed upon by portion 20 is pressed down upon the roof or compacted, leaving a small amount of snow upon the roof under the tool. This compacted amount of snow prevents the tool from touching the shingles of the roof, thereby preventing damage to the roof. Finally portion 30 acts as a bearing surface, riding upon the compacted amount of snow on the roof. In this way, the blade tool can be thrust into a snow bank, dislodge and break up the snow, and remain close to the roof while not touching the roof
An optional plastic sheet 50 is shown attached to the blade tool. This plastic sheet receives dislodged snow falling over the tool in region 120. The surface of the plastic sheet is smooth, and the chunks of snow that fall upon it tend to continue to fall along the sheet until they fall off the edge of the roof. In this way, snow can easily be removed from the roof surface.
The blade tool of
Plastic sheet 50 can be attached to device 5 in a number of different ways. The device of
The plastic sheet can typically be the same or similar width to the tool. In one embodiment, the plastic sheet should be long enough that the individual can reach the apex of the roof and still have the plastic sheet at least to the edge of the roof overhang, so snow can travel down the plastic sheet and over the edge without getting hung up on the shingles.
Sheets 50 and 350 are illustrated as pliable plastic sheets. In other exemplary embodiments, portion 30 can simply be extended in a flat section extending parallel with a roof surface, providing an additional length for snow to fall upon and pick up speed before falling from the roof surface.
Advantages of the disclosed device include that the tool can be used without touching the roof surface; the tool can be lighter weight than other designs, making the device more usable for persons with lesser strength; the device has a tendency to undercut the snow as it is pushed forward; the device can be constructed with welded or adhered joints, thereby removing weaknesses associated with mechanical fasteners; and the tool can be used to break large chunks of thick snow easily into smaller chunks which are gravity fed off the roof.
The disclosed tool can benefit from the use of the attached pliable sheet to aid in speeding chunks of snow away from the roof surface. Such a pliable sheet can be used with other snow removal tools, and the disclosure is not intended to be limited to the particular examples provided herein.
The disclosure has described certain preferred embodiments and modifications of those embodiments. Further modifications and alterations may occur to others upon reading and understanding the specification. Therefore, it is intended that the disclosure not be limited to the particular embodiment(s) disclosed as the best mode contemplated for carrying out this disclosure, but that the disclosure will include all embodiments falling within the scope of the appended claims.
This disclosure claims the benefit of U.S. Provisional Application No. 62/166,174 filed on May 26, 2015 which is hereby incorporated by reference.
Number | Date | Country | |
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62166174 | May 2015 | US |