US20130167411A1

US20130167411A1 - Snow clearing device

Info

Publication number: US20130167411A1
Application number: US13/820,121
Authority: US
Inventors: Jan-Scott Bjørthun
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-01
Filing date: 2011-08-30
Publication date: 2013-07-04
Also published as: NO20101212A1; JP2013538956A; CA2809931A1; WO2012030227A1; EP2611965A1; NO333195B1

Abstract

A snow clearing device preferably for removing snow from a sloping house roof, including at least one plate of semi-rigid material, wherein at least one long side has corrugations or teeth for cutting sideways into a snow layer, and having handles for cutting motion arranged on at least one side of the plate.

Description

FIELD OF THE INVENTION

The present invention relates to a snow clearing device, and more specifically to a snow clearing device.

BACKGROUND OF THE INVENTION

As an example of the prior art, mention may be made of FI 874371 A, U.S. Pat. No. 5,943,796 A and U.S. Pat. No. 5,570,524 A, all of which describe different types of snow clearing devices.

SUMMARY OF THE INVENTION

The present invention seeks to provide more efficient snow removal by means of a snow clearing device as disclosed.

BRIEF DESCRIPTION OF THE DRAWING

FIG. 1 shows a snow clearing device 1 according to the invention, including three

plates

2, 8, 9 of semi-rigid material where the long sides of the

plates

2, 8, 9 have corrugations or teeth 3 for cutting sideways into a (non-illustrated) snow layer. The plates, as shown, are connected to each other via hinges 11 in each short end of a middle plate 8. FIG. 1 also shows a user of the snow clearing device 1, who is holding it up in a possible position of use.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

A detailed description of an advantageous, non-limiting embodiment of the snow clearing device according to the invention is provided in the following description and with reference to FIG. 1.
Handles 4 are advantageously arranged on both long sides of the plates 2, 8, 9. Furthermore, handles 5 are advantageously arranged on a short side of the outer plate 2, and, as shown, the handles 4, 5 are advantageously configured as openings or holes in the plates 2, 8, 9.
The formation of handles 4, 5 on both the short side and the long side of the snow 30 clearing device allows two persons to work together on the snow cutting in that one person uses the handles 5 on the short side (as shown in FIG. 1) and the other person uses two of the handles 4 on a long side of the snow clearing device 1. When the snow clearing device 1 has been sawn into the snow layer, the portion of the snow layer that is on top of the snow clearing device can advantageously be loosened by inserting a spade into it along a long side of the snow clearing device 1.
The handle 5 on the short side is advantageously formed with a reinforcement 6 in an upper edge of the handle 5, the handle 5 on the short side advantageously being formed with an attachment for a safety rope 7 and the attachment advantageously being arranged in the reinforcement 6.
The middle plate 8 is advantageously slightly longer than the outer plates 2, 9, for easy folding up of the snow clearing device 1 for storage or transport.
At least the one outer plate 2 in which handles 5 are formed in a short side thereof is advantageously flexible so as to be able to transfer sawing motion in the snow layer from an angled position to a position parallel with a roof surface.
The plates 2, 8, 9 advantageously have smooth side faces 12 for easy sawing in the snow layer and so as to allow a portion of the snow layer loosened by sawing to slide down the side faces 12.
A lower end of the snow clearing device 1 opposite the short side configured with handles 5 is advantageously provided with a (non-illustrated) mountable, roll-up plastic sheet for extension of a slide or chute for the loosened portion of the snow layer, preferably beyond the roof so that the snow falls down from the roof after it has been loosened.
Although in the illustrated embodiment three interhinged plates 2, 8, 9 are used, a snow clearing device 1 with a different number of plates, the minimum being a single plate 2, is also conceivable. The one plate of flexible material, advantageously having a length equal to that of the illustrated embodiment, will on account of the material hardly be capable of being folded up flat in the same way as the illustrated, hinged embodiment, but will more likely be capable of being rolled up into a roll owing to the same flexible material properties.
In an advantageous embodiment, the at least one plate 2 is made of a suitable plastic material, but may alternatively be made of thin plate or sheet metal or other suitable flexible material with a smooth surface.
The present invention should not be regarded as limited to the embodiments described above, but may be varied within the scope disclosed herein.

Claims

1. A snow clearing device comprising at least one plate of semi-rigid material, wherein at least one side of the at least one plate has corrugations or teeth configured to cut sideways into a snow layer and comprising handles configured to be used for cutting motion arranged on at least one side of the plate.

2. A snow clearing device according to claim 1, wherein the at least one plate comprises at least one long side and at least one short side, wherein at least one long side comprises one or more handle(s).

3. A snow clearing device according to claim 1, comprising one or more handles on a short side of the at least one plate.

4. A snow clearing device according to claim 1, wherein the handles are configured as openings in the plate.

5. A snow clearing device according to claims 3, wherein the handle on the short side is formed with a reinforcement in an upper edge of the handle.

6. A snow clearing device according to claim 3, wherein the one or more handles on the short side is/are formed with an attachment for a safety rope.

7. A snow clearing device according to claim 6, wherein the attachment is arranged in the reinforcement.

8. A snow clearing device according to claim 1, comprising several, plates that are hinged together.

9. A snow clearing device according to claim 8, wherein one or more middle plate(s) is/are longer than outer plates for easy folding up of the snow clearing device for storage or transport.

10. A snow clearing device according to claim 1, wherein an outer plate in which handles are formed in a short side thereof is flexible so as to be able to transfer a sawing motion in the snow layer from an angled position to a position parallel with a roof surface.

11. A snow clearing device according to claim 1, wherein the at least one plate has a smooth side face for easy sawing in the snow layer and so as to allow a portion of the snow layer loosened by sawing to slide down the side faces.

12. A snow clearing device according to claim 11, wherein a lower end of the snow clearing device opposite a short side configured with handles is provided with a mountable, roll-up plastic sheet for extension of a slide or chute for the loosened portion of the snow layer.

13. The snow clearing device according to claim 1 comprising handles on two long sides of the at least one plate.

14. The snow clearing device of claim 8 comprising three plates hinged together.

15. A method of removing snow from a sloping house roof comprising:

a) sawing into a slow layer with said snow clearing device of claim 1, and

b) loosening snow on top of the snow clearing device from the snow layer on said roof.

16. The method of claim 15, wherein loosened snow slides down a smooth surface of the snow clearing device, and optionally down a roll-up plastic sheet for extension of a slide or chute, and falls down from the roof.