JPH078741Y2 - Roof snow removal equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof snow unloading device for dropping snow by inflating a bag-shaped body provided on the roof with gas.

[0002]

2. Description of the Related Art A snow removing device is known in which gas is supplied to a bag-shaped member attached to a roof to expand the bag and to drop snow.
In this type of device, the bag-shaped body must be inflated into a predetermined mountain shape in order to reliably drop snow. For example, Japanese Utility Model Laid-Open No. 2-9654 discloses a bag-shaped body in which both flat surfaces of the upper bottom and triangular side surfaces which form a predetermined expanded shape are connected by a rubber-like elastic body.

[0003]

According to the conventional device,
There is a problem that the structure for expanding the bag-shaped body into a predetermined shape is complicated and the manufacturing cost is high.

An object of the present invention is to provide a snow removing device having a bag-like body which has a simple structure and can surely expand into a predetermined shape to drop snow.

[0005]

According to a first aspect of the present invention, there is provided a snow removing device for a roof, which is installed on the roof and has a bag-like body which is expanded by a gas supplied therein to drop snow. In the snow unloading device, the bag-shaped body has a non-expandable portion formed by welding so that the width on the side of one edge where snow falls falls to the maximum and gradually decreases toward the other edge. It has a feature.

A roof snow removing device according to a second aspect of the present invention is a roof snow removing device provided with a bag-like body which is installed on a roof and expands by a gas supplied to the inside to drop snow. Gas is introduced into the bag-like body by connecting the first and second welded portions for sealing the two edges opened in a tubular shape and the first welded portion, which is the falling side of snow, at two points. It is characterized in that a substantially V-shaped third welded portion forming a non-expanded portion having a substantially triangular shape is formed.

[0007]

According to the first aspect of the invention, when gas is supplied to the inside of the bag-shaped body, the parts other than the non-inflatable part expand. The non-expansion part is wide on the snow falling side and narrows on the opposite side. Therefore, the bag-shaped body has an inclined shape,
The snow on the surface can be dropped.

According to the second aspect of the invention, when gas is supplied to the inside of the bag-shaped body, the parts other than the non-expandable part surrounded by the first and third welded parts expand. The non-expansion portion has a triangular shape in which the width on the first welding portion side, which is the falling side of snow, is wide, and gradually narrows toward the second welding portion. Therefore, the bag-shaped body has an inclined shape in which the second welded portion side is high and the first welded portion side is low, so that snow on the surface can be reliably dropped.

[0009]

EXAMPLE A first example will be described with reference to FIGS.
The snow removing device of this embodiment has a bag 5 made of a flexible sheet, for example, a synthetic resin tarpaulin. Figure 1
As shown in FIG. 2, the bag-shaped body 5 has two cylindrical edges of the main body, which are formed by the first and second welded portions 1 and 2, respectively.
It is sealed in 2 and becomes rectangular when contracted. The bag-shaped body 5 is attached to the roof so that the first welded portion 1 is located on the eaves side of the roof and the second welded portion 2 is on the ridge side.

A V-shaped third welded portion 3 connected to the first welded portion 1 at two points is formed in a half portion of the bag-like body 5 on the first welded portion 1 side. Since the upper and lower two coatings of the bag-like body 5 are sealed in the third welding portion 3, the space between the third welding portion 3 and the first welding portion 1 is a triangular non-expandable portion in which gas does not enter. It is 6. In this embodiment, two non-inflatable portions 6 and 6 are formed for each bag 5.

A fourth point is formed at the apex of the V-shape of the third welded portion 3.
The welded portion 4 is continuous. The fourth welded portion 4 is linear and extends to the vicinity of the second welded portion 2. Since the fourth welded portion 4 is not connected to the second welded portion 2, the bag-shaped members 5 other than the non-inflatable portion 6 are in communication with each other.

The end portion of the fourth welded portion 4 is easily peeled off when expanded. Therefore, as shown in FIG. 3, at the end of the fourth welded portion 4, a peeling prevention plate 9 composed of a pair of rubber sheets 7 and a pair of aluminum plates 8 is provided with a bolt / nut 10 for reinforcement to form a bag-shaped body. It is attached from above and below 5.

As shown in FIGS. 1 and 4, a supply / exhaust flange 11 for supplying gas inside or exhausting the gas inside is welded to the second welding portion 2 side of the surface of the bag-like body 5. Installed by.

As shown in FIGS. 2 and 5, three rope stoppers 12 are welded at equal intervals on the second welding portion 2 side of the back surface of the bag-shaped body 5. Further, as shown in FIGS. 2 and 6, three rope stoppers 1 are attached to the first welded portion 1 of the bag-shaped body 5.
3 are attached at equal intervals. Each of these rope stops 1
Rope holes 2 and 13 are provided so that the bag 14 can be attached to the roof by connecting the ropes 14 arranged along the back surface of the bag 5.

FIG. 7 shows a state in which the six bag-shaped bodies 5 are arranged on the roof 15. The rope 14 to which the rope stopper 13 on the side of the first welded portion 1 of each bag 5 is coupled is fixed to the eaves portion of the roof 15 via the eaves attachment fitting 16 as shown in FIG.

Further, the rope 14 to which the rope stopper 12 on the side of the second welded portion 2 of each bag-like body 5 is connected is shown in FIGS.
As shown in FIG. 2, the top of the roof is connected to the mountain-shaped ridge mounting bracket 17 from both sides. If there is no protruding portion in the ridge like the tin roof, the mountain-shaped metal fitting 17 as shown in FIG. 9 may be used, but for example, the protruding portion at the top like the straw roof as shown in FIG. In some cases, the ridge mounting bracket 18 having a shape matching the protruding portion is required.

As shown in FIG. 7, an air hose 19 is connected to the air supply / exhaust flange of each bag-shaped body 5, and each air hose 1 is connected.
9 are respectively connected to the air hoses 20 which are attached to the ridge mounting bracket 17 along the ridge and piped.
The air hose 20 extends downward from the roof 15 and is connected to a supply / exhaust blower (not shown).

According to the snow removing device configured as described above, the bag-shaped body 5 has a flat shape along the plane of the roof 15 when contracted.

When snow is to be removed after snowfall, the air supply / exhaust blower is operated to inject air into the bag-shaped bodies 5 via the air hoses 19 and 20 to inflate them. The non-expansion part 6 partitioned by the first and third welding parts 1 and 3 has a wide width on the side of the first welding part 1 which is the falling side of snow, and the third welding part 3 and the fourth welding part 4 are connected to each other. It has a substantially triangular shape that gradually narrows toward the part. The half of the second welded portion 2 side is the fourth welded portion 4
It is divided into three parts that communicate with each other.
Therefore, as shown in FIG. 11, the bag-shaped body 5 does not bulge round as a whole, bulges while maintaining the flat surface on the upper surface side, and the vicinity of the fourth welded portion 4 on the ridge side of the roof 15 is the highest,
A stable inclined surface extends from the third welded portion on the eaves side to the first welded portion 1.

If the bag 5 is simply inflated, snow may remain on the bag 5. In such a case, it is advisable to deflate the air and then inflate it again to impact the snow and cause it to slide off.

A second embodiment will be described with reference to FIGS. The bag-shaped body 50 of the present embodiment is smaller than the bag-shaped body 5 of the first embodiment, but the basic configuration is the same. The same components as those in the first embodiment are designated by the same reference numerals as those in FIGS. 1 and 2 and their description is omitted. Bag-shaped body 50 of the present embodiment
Is also provided with a rope stopper 12 on the upper surface side, so that another bag-like member can be placed on the upper surface side and connected by a rope to be used in combination.

FIGS. 15 and 16 show a state in which the bag-shaped body 5 of the first embodiment is stacked on the bag-shaped body 50 of the second embodiment and the rope stoppers 12 and 12 are connected to each other by a rope. Shows. In this way, by inflating the bag-like bodies 5 and 50 that are stacked one above the other at the same time, it is possible to obtain a slope having a wider area than in the case of the first embodiment, and the sliding property of snow is further improved. . In this case, the air supply / exhaust flanges 11, 11 of the bag-shaped bodies 5, 50 are connected to the common air hose 19.

In FIG. 17, a sheet 51 is connected in the falling direction of the bag-like body 50 of the second embodiment, and the snow fallen on the slope of the bag-like body 50 is guided by the sheet 51 to the bottom of the roof. It is designed to be dropped.

[0024]

EFFECTS OF THE INVENTION According to the present invention, since the non-expandable portion that widens outwards is formed at the edge of the bag-like body by welding, the bag-like body can be inflated to stably lift snow. A large amount of snow can be stably slipped off in a short time due to the slope of the predetermined shape.

[Brief description of drawings]

FIG. 1 is a plan view of a bag-shaped body according to a first embodiment.

FIG. 2 is a bottom view of the bag-shaped body according to the first embodiment.

3A and 3B are an enlarged plan view and a sectional view of a peeling prevention plate in the first embodiment.

FIG. 4 is an enlarged perspective view of an air supply / exhaust flange in the first embodiment.

FIG. 5 is an enlarged perspective view of a rope stopper in the first embodiment.

FIG. 6 is an enlarged perspective view of a rope stopper in the first embodiment.

FIG. 7 is a plan view showing a state in which the device of the first embodiment is attached to the roof.

FIG. 8 is a view showing a structure for attaching the bag-shaped body to the eaves portion in the first embodiment.

FIG. 9 is a view showing a structure for attaching the bag-shaped body to the ridge in the first embodiment.

FIG. 10 is a view showing another aspect of the structure for attaching the bag-shaped body to the ridge.

FIG. 11 is a perspective view showing a state where the bag-shaped body of the first embodiment is inflated.

FIG. 12 is a plan view of a bag-shaped body according to a second embodiment.

FIG. 13 is a bottom view of the bag-shaped body according to the second embodiment.

FIG. 14 is a perspective view showing a state where the bag-shaped body of the second embodiment is inflated.

FIG. 15 is a perspective view showing a state in which the bag-shaped bodies of the embodiment are used in combination from the front side.

FIG. 16 is a perspective view showing a state in which the bag-shaped bodies of the embodiment are used in combination from the back surface side.

FIG. 17 is a perspective view showing another usage mode of the bag-shaped body of the second embodiment.

[Explanation of symbols]

 1 1st welding part 2 2nd welding part 3 3rd welding part 5,50 Bag-shaped body 6 Non-expansion part 15 Roof

Claims (2)

[Scope of utility model registration request] 1. A snow removing device for a roof, which is installed on a roof and has a bag-like body that is inflated by a gas supplied inside to drop the snowfall, wherein the snowfall falls on the bag-like body. A snow removing device for a roof, characterized in that the non-expandable portion is formed by welding so that the width on one edge side becomes maximum and gradually narrows toward the other edge. 2. A snow removing device for a roof, which is installed on a roof and has a bag-like body which is expanded by a gas supplied therein to drop snowfall, wherein the bag-like body has a cylindrical opening. The first and second welded portions that seal the two edges that have been formed and the first welded portion that is the falling side of the snow are connected at two points to form a substantially triangular non-expandable portion into which gas does not enter. And a substantially V-shaped third welded portion formed on the roof.