JPH0443554Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a rooftop snow sliding device that timely slides down and removes large amounts of snow that forms on the roof of a house during the snowfall season in areas with heavy snowfall. This is an improved bag-like body which is inflated to form a side cross-section to slide off accumulated snow, so that it can easily and automatically return to its flat compression equipment state.

(Prior Art) In areas of Japan that experience heavy snowfall, it takes a lot of effort every year to remove large amounts of snow that accumulates on the roofs of houses. Many efforts have been made in the past to remove snow from the roofs of houses in areas with heavy snowfall, and in particular, the applicant's proposal of U.S. Pat.
The "rooftop snow sliding device" described in Publication No. 67159 is
A bag-like body made of rubber-like elastic material with a triangular side cross section is compressed flat and attached to the rooftop, and the bag-like body is inflated with pressurized air and its top surface is tilted to reduce snow accumulation. It was made to slide down.

(Problem to be solved by the invention) However, in the previously proposed rooftop snow sliding device described above, pressurized air is injected into an elastic bag-like body installed on the roof of a house to inflate it, and the snow on the top surface is slid down. It is shaped so that when it is press-fitted and the air is let out, it will be naturally compressed into a folded state due to its elasticity, but depending on the condition of falling snow or wind direction, it will return to its folded state when equipped. There were cases where it was not possible. In such a case, the top surface of the compressed bag-like body will not become flat, and the next snow will not be piled up in a state where it is easy to slide down, and the desired snow removal will not be achieved. The challenge for the conventionally proposed device was to improve it so that it would automatically return to the flat compressed equipment state.

(Means for Solving the Problems) The purpose of the present invention is to solve the above-mentioned conventional problems, and to slide off accumulated snow on the upper surface when an elastic material bag-like body having a triangular side cross section is inflated by air pressure. To provide a rooftop snow sliding device which automatically returns to a flat compressed equipment state when the snow falls off.

That is, the rooftop snow sliding device of the present invention is made of a rubber-like elastic material membrane or a laminated film of a rubber-like elastic material and a woven fabric material, and has an upper plane part and a bottom plane part joined to each other at one side edge. At least one inflatable and compressible bag-like body having a substantially triangular side shape when inflated is provided, the bottom plane part is expanded and fixed, compression equipment is installed on the roof, and the bag-like body is expanded by pressurizing gas. In the device in which the snow on the upper plane part is sometimes caused to slide down over the one side edge by the inclination of the upper plane part, between the upper plane part and the bottom plane part of the bag-like body, between both triangular side surfaces and between the one side edge and the opposite side,
connecting at least one rubber-like elastic material strip having a length that is relaxed when compressed and tensioned when inflated; It is characterized by connecting strips of inelastic material with a length that maintains a triangular cross section.

(Function) Therefore, in the rooftop snow sliding device of the present invention, air is inflated by pressurizing the elastic material bag-like body spread on the roof of the house, and the snow on the top surface having a triangular side cross section is slid off and then removed. If you feel like it, it will automatically return to the flat compression equipment state, so you can reliably inflate the bag in a timely manner and repeatedly accomplish the removal of fallen snow.

(Example) The present invention will be described in detail below with reference to the drawings.

First, to explain the outline of the rooftop snow sliding device according to the present invention with reference to FIG. The bag-shaped body 2 is fixedly attached to the roof 1 by passing strings through the bottom and upper and lower edges 3c and 3a, or by pressing it with a fixing plate 5, and the upper surface is sloped to an appropriate degree so that an appropriate amount can be stacked. Let the ivy snow slide to the ground. The bag-like body 2 is formed by properly welding a film of a rubber-like elastic material that does not harden at low temperatures or a film made by laminating the rubber-like elastic material and a woven fabric, or by adhesively forming it with an adhesive to form approximately triangular sides. The roof 1 is manufactured so as to form a shape, and the top and bottom surfaces are dimensioned to cover almost the entire surface of the roof 1 even if it is divided into a plurality of pieces in the width direction.

A bag-like body 2 as described above is attached to the roof 1 of a house in a folded and compressed state as shown in the figure before the snowfall season begins, and when the snowfall reaches a suitable amount, snow is removed. For the snow-falling work, for example, air is injected into the compressed bag-like body 2 as shown in the figure to expand it so that the side shape forms a triangle ABC shown by the dotted line, and the snow pile 4 is pushed up and completely removed. The bag slides down at an angle exceeding 24 degrees, where a layered avalanche occurs, and then the compressed air in the bag-like body 2 is discharged and compressed to prepare for the next snowfall. For press-fitting air to inflate the bag-like body 2,
Since pressure is applied to the entire bottom surface of the snow to push it up, the injection pressure is relatively small and can be operated with a small air pump.

Regarding the discharge and compression of the pressurized air, the bag-like body 2 after falling snow will naturally release air due to the weight of the next snowfall and return to its original folded and compressed state, but the expanded bag-like body 2 will return to its normal state of folding and compression. On a rooftop, there is a risk of danger due to strong winds, so it is preferable to operate the air pump for air injection in the opposite direction to suck in the pressurized air and forcefully fold it back to the compressed state.

Furthermore, regarding the folding of the bag-like body 2, creases are created by heating and pressurizing the rubber-like elastic material membrane or the laminated film with woven fabric at the portions of the side surface or upper and lower surfaces of the bag-like body 2 that are to be folded, or by welding. A crease is created by gluing or the like, so that when the bag-like body 2 contracts, it will naturally fold and compress.

Therefore, it is preferable to install a single long bag-like body 2 along the slope of the roof 1 in order to reduce the trouble of snow falling due to expansion and compression of the bag-like body.
If such a long bag-like body 2 is made into an integral structure with a simple triangular side shape as shown in the first figure, it will require a large amount of air to be press-fitted, which will cause inconvenience when installing, removing, and storing it on the rooftop. Difficulties arise. Therefore, for example, as shown in FIG. 2, a long bag-like body covering the entire slope of the roof 1 divides the triangular side shape shown in FIG. A plurality of bag-like bodies A, B, each having a triangular side shape are formed into a series of membranes.
It is preferable to combine and join C to construct a bag-like body 2 that functions in the same manner as shown in the first figure.

However, in this kind of roof snow sliding device that has been proposed in the past, depending on the state of the snow falling due to the expansion of the bag-shaped body 2 during snowfall work, the wind direction, etc.
In some cases, the original equipment state in which the elastic material membrane was folded and compressed along the creases was not restored as described above. In such a case, the bag-like body 2 compressed flatly does not cover the entire surface of the roof, and therefore, even with the expansion of the bag-like body, snow that remains without sliding down is generated, and the remaining snow accumulates. This may cause a situation where the desired snowfall is even more difficult to achieve due to interference.
It was necessary to provide a means to ensure that the bag 2 returns to its original flat compression equipment state when the bag 2 is degassed after the snow falls due to expansion.

In this kind of rooftop snow sliding device of the present invention,
In order to provide the above-mentioned conventional necessary means, for example, as shown in FIGS. Inside or outside of the bag-like body 2 between the lower edge 3a and the side surface opposite the upper edge 3c where the upper plane part and the bottom plane part join, in the initial flat compression equipment state. A belt-like strip of an appropriate width made of a superior rubber-like elastic material of an appropriate length that is just relaxed and loses its elasticity, and that can fully expand without hindering the expansion as it expands, is attached to the bag-like body 2. Various tension members 6a to 6b are connected at least one each at appropriate intervals according to the dimensions of the machine and at appropriate positions according to the predetermined fold lines to ensure automatic return to the initial flat compression equipment state. , 7a to 7c and 8, etc.

The bag-shaped body 2 in the rooftop snow sliding device of the present invention is provided with various tension members as described above to ensure a flat folded state when equipped with a compression device.
As shown in FIGS. 3a and 3b, when the elastic material bag-like body 2 is inflated with air, the triangular shape of the side cross section is ensured so that the upper plane part does not expand and deform excessively, and the snow can fall smoothly. In order to be able to fall into
Between the upper plane part and the bottom plane part, a belt-like strip of an appropriate width made of a thin non-elastic woven fabric material is attached to the bag-like body 2.
At least one tension member 9a is connected at an appropriate position at an appropriate interval according to the dimensions of the tension member 9a to ensure a substantially regular triangular side cross section during inflation.
~9f etc.

In other words, the longer the triangular side cross section of the elastic material bag-like body 2 is, the more the central part of the upper plane expands elastically and becomes spherical when the air is inflated, making it more difficult for the snow on the upper part to slide down. A tension member is required to prevent such excessive expansion and deformation of the plane.

It is preferable that these tension members be made of a thin and strong woven fabric material so as not to disturb the flat compressed shape of the bag-like body when the bag-like body is compressed.

In the above explanation, an example has been described in which a tension member and a tension member are provided in a bag-like body having a single triangular side cross section as shown in FIG. Even when the bag-like body 2 having a long triangular side cross section is divided into a plurality of sections as shown, the plurality of divided bag-like bodies,
For example, the tension members in the three directions of height, width, and depth as well as the tension members in the height direction are attached inside each of the illustrated bag-like bodies A, B, and C and, if necessary, between them. The interlocking action of the members ensures a predetermined shape during compression and inflation, similar to that of a bag-like body having a substantially single triangular side cross section.

Moreover, the upper end edge b on the upper plane of the bag-shaped body 2
When the compression equipment is installed, it may not be possible to achieve a flat compression equipment state due to interference from wind or residual snow after falling snow, so as shown in Figure 4a and b, the left and right roofs _1L and _1R of the house Between the upper edges _6L and _6R of the bag-like bodies _2L and _2R , which are installed symmetrically on the upper ridge, there is an appropriate length that is just relaxed in the compressed state and fully expands as it expands. _At least one belt-like strip made _of a rubber-like elastic material with a width of ,
It is preferable to reliably automatically return to the flat compression equipment state.

(Effects of the invention) As is clear from the above explanation, according to the invention, an elastic material bag-like body having a triangular side cross section when inflated is provided on the rooftop, and each time snow is slid down and removed in a timely manner,
By degassing, the equipment will reliably return to its original state as a flat equipment, and when inflating with air, a sloping sliding plane can be secured, so the snow that covers the entire surface of the roof can be repeatedly slid down smoothly and almost completely removed. A special effect can be obtained in that it can be eliminated.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a schematic configuration of the rooftop snow sliding device according to the present invention, Fig. 2 is a side view showing another configuration of the bag-like body in the device, and Figs. 3 a and b are rooftop snow falling devices according to the present invention. Top view and side view showing an example of the configuration of the sliding device, FIGS. 4a and b
FIG. 2 is a side view showing another example of the structure of the rooftop snow sliding device when compressed and when expanded. 1, 1 _L , 1 _R ... Roof of the house, 2, 2 _L , 2 _R ...
...Bag-shaped body, 3a, 3c...Side edge, 4...Snow cover,
5... Fixed plate, A, B, C... Bag-shaped body, 6a-6
b, 7a to 7c, 8, 10... tension member, 9a
~9f...Tension member.

Claims (1)

[Scope of utility model registration request] It is made of a rubber-like elastic material membrane or a laminated film of a rubber-like elastic material and a woven fabric material, and has an upper plane part and a bottom plane part joined to each other at one side edge, and forms an approximately triangular side surface shape when inflated. - At least one compressible bag-like body is provided, the bottom plane part is expanded and fixed, and compression equipment is installed on the rooftop, and when the bag-like body is inflated by pressurizing gas, the slope of the top plane part causes the said bag-like body to be compressed. In the device for sliding the accumulated snow on the upper flat part over the one side edge, the snow is removed between the upper flat part and the bottom flat part of the bag-like body, between both triangular side surfaces, and between the one side edge. At least one rubber-like elastic material strip having a length that is relaxed when compressed and tensioned when inflated is connected between each side edge and the opposite side, and the top plane part and the bottom plane part A rooftop snow sliding device characterized in that at least one inelastic material strip having a length that maintains a triangular side cross section when inflated is connected between the two ends.