JPS6337232B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roof snow removal machine that uses mechanical power to remove snow accumulated on a roof.

In regions with heavy snowfall, it is essential to remove snow from roofs in order to prevent houses from being crushed due to snow that accumulates on the roofs of houses during the winter, and to prevent accidents such as death or injury to pedestrians due to untimely falling snow. However, to date, the reality is that snow removal from roofs has relied solely on manual labor, which not only requires a great deal of labor and time, but also involves great danger. Moreover, many of these areas with heavy snowfall are so-called depopulated areas,
There are few young people who are strong enough to remove snow from roofs, and older people and women do this work, which leads to problems such as lower work efficiency and more danger.

For this reason, roof snow removal work has become a major social problem in areas with heavy snowfall, and there is a strong demand for a mechanical snow removal device that is efficient and safe and does not require labor.

Large, high-performance snowplows are used for ground snow removal work in areas with heavy snowfall, especially for removing snow from main roads such as national highways.
Snow removers of various capacities are used to remove snow from driveways, etc., and some of them are quite small.

However, to use this for removing snow from roofs,
Although it is small, it is heavy and difficult to lift onto the roof, and it cannot be used because it slides down on snow on a sloping roof.

Although mechanical means such as belt conveyors and hoppers have come to be used to dispose of manually removed roof snow into rivers, snow ditches, etc., roof snow removal work is now performed manually on the roof. However, hard labor and danger remain unavoidable.

The reason why roof snow removal work is so dangerous is that the sloping snow surface is slippery, and because of the warm indoor air, the underside of the snow that is under pressure in contact with the roof melts and becomes slippery on that surface. In particular, accidents often occur near eaves where the snow falls along with nearby snow, and the snow removal worker also falls to the ground.

In view of the above-mentioned current state of roof snow removal work and the strong demands of local residents, the purpose of this invention is to provide a roof snow removal machine that is small, lightweight, has high work efficiency, is easy to handle, safe, and inexpensive. do.

Hereinafter, the present invention will be described in detail based on drawings showing embodiments thereof. As shown in FIGS. 1 and 2, this device includes a snow blower body 1, a counterweight 2,
A connecting cable 3 and a moving device 4 that connect these to each other
It is made up of. As shown in FIG. 3, the snow blower main body 1 has an engine 11 such as a small and lightweight gasoline engine, a rotary vane 12 driven by the engine, and a fuel tank 13. The rotational torque of the engine is transmitted to the rotary vane 12 by a belt 14. communicated. The rotary vane 12 is a drum with an appropriate number of blades of a shape suitable for removing snow and blowing the removed snow forward,
By rotating this, the snow 6 on the front can be blown away forward. rotary vane 12
A protective cover 12' is attached to all parts except the front surface of the rotary vane 12, and the outer surface of the lower part of the rotary vane 12 is in contact with the snow surface so that the rotary vane 12 assumes a forward tilting position due to the moment of reaction force applied to the wing during snow removal. Also serves as a stopper to prevent this. Further, a sled 15 is attached to the lower surface of the snow removal machine body 1.

The counterweight 2 has approximately the same weight as the snow blower main body 1, and has a flat shape with a wide bottom area.

The connecting cable 3 is provided at both ends with connecting members 31 for attaching the snow blower main body 1 and the counterweight 2, and a fiber cable such as a wire rope or a nylon rope is used. Its length is determined according to the dimensions of the roof 5 to be snow removed.

As shown in FIG. 4, the moving device 4 is provided with a pair of rollers 41 and 42 that sandwich the connecting cable 3 and a handle 43 that manually rotates the pair of rollers 41 and 42, and the moving device 4 is provided with a handle 43 that manually rotates the pair of rollers 41 and 42 that sandwich the connecting cable 3. Legs 44 are provided at intervals so that they can be placed on top. A roller support 45 is attached to the lower ends of the left and right legs 44 so as to be able to swing within a certain angular range, and furthermore, a roller support 45 is attached to the lower surface of the roller support 45 so that the roller support 45 can swing. Rollers 46 having axes perpendicular to the shaft 44a are provided at the front and rear. Furthermore, the moving device 4 is equipped with a removable brake lever 17 connected to the engine 11 of the snow blower main body 1 by a control cable 16, so that the engine 11 can be accelerated, decelerated, and stopped from the position of the moving device 4. It is becoming.

When removing snow from a roof using a snow blower configured as described above, the components of this device must be lifted onto the roof, but the entire device can weigh less than 10 kg. Therefore, a single piece of equipment can be easily lifted onto the roof by a single worker. The small area where the moving device 4 is to be installed is manually cleared of snow with a shovel or the like in advance, and the moving device 4 is installed there. In that case, the roller supports 45 of the moving device 4 are attached to the legs 4 on both sides.
Since the roller 46 is attached to the lower end of the roller 46 so as to be swingable within a certain angle range, the roller 46 can be stably installed along most roof slopes. Next, the connecting cable 3 with the snow remover main body 1 and the counterweight 2 attached to both ends is held between the pair of rollers 41 and 42, and the tie yoke lever 17 is attached to the machine frame of the moving device 4. Next, the counterweight 2 is placed on the snow 6 on the sloped roof 5, and the connecting cable 3 is gradually let out and slid down by its own weight. When this has descended to the eaves, the snow blower body 1 is placed on the roof adjacent to the moving device 4 and on the opposite side of the weight 2,
The engine 11 is started using a rope starter or a kick starter. The rotation of the engine 11 is transmitted to the rotary vane 12 via the belt 14, and the snow 6 in front of the rotary vane 12 is blown forward by the rotating vane and falls over the eaves to the ground. Snow that has fallen to the ground can be disposed of by a conventional above-ground snow blower, or by installing an appropriate snow catcher at the eaves as it falls to the ground, the blown snow can be collected and guided directly to a snow channel by a hopper or the like. At the position of the moving device 4, the operator turns the handle 43 while directly visually checking the snow removal status of the snow blower main body to move the connecting cable 3, move the snow remover main body 1 forward at an appropriate speed by its own weight, and move forward. To prevent the snow removed from flying unnecessarily far away,
The rotation speed is controlled to an appropriate speed by the brake lever 17. In this way, when the snow has been removed up to the eaves with the width of the rotary vane 12, the engine 11 is stopped by the brake lever 17, or set to the slowest speed, and the handle 43 is turned in the opposite direction to remove the snow remover main body 1. Pull it all the way to Building 51. When moving the snow blower main body 1 forward and pulling it in as described above, the snow blower main body 1
Since the weights of the handle 43 and the counterweight 2 are almost balanced, the force required to turn the handle 43 is extremely small.
Next, the moving device 4 is moved laterally along the ridge. In this case, the moving device 4 includes a roller 46 that rolls in the direction of the ridge.
, so it can be easily moved laterally if the roof is flat without any unevenness. Continuing,
By repeating the above snow removal operation, snow removal from the entire roof is completed. In addition, the above rotary vane 1
The depth of snow that can be removed by method 2 depends on the design of the rotary vane, but at best it will not exceed the diameter of the rotary vane. Therefore, if the snow on the roof is deep, it is possible to remove the entire snow by dividing the same area several times and repeatedly removing the snow from the top to the desired depth.

As described above, according to the present invention, only one worker can perform snow removal work with high efficiency by mechanical power while sitting in a safe ridge position from beginning to end, which saves a lot of time and effort. To remove snow from roofs, which requires labor and is dangerous, can be carried out safely in a short time and with less labor. Moreover, the engine speed and forward speed of the snow blower can be controlled while directly checking the snow removal status of the snow blower, making it easy to control.
It is reliable, there is no waste, and it is possible to avoid causing harm to passersby on the ground.

As described above, the present invention greatly contributes to the removal of snow from roofs, which is a major problem in areas with heavy snowfall.

A small gasoline engine is optimal as the drive source for this snow blower, but if it is possible to pull a cable or hose from the ground, it is also possible to use an electric motor or a hydraulic motor.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention in use, FIG. 2 is a top view thereof, FIG. 3 is a side view of the snow blower main body, and FIG. 4 is a side view of the moving device. 1... Snow blower body, 2... Counterweight, 3... Connecting cable, 4... Moving device, 5... Roof, 6... Snow,
11...Engine (drive source), 12...Rotary vane (rotor wheel), 17...Chiyo lever,
41, 42...Roller (connection cable conveyance means), 43
...Handle, 51...Building.

Claims (1)

[Scope of Claims] 1. A snow blower body including a rotary impeller rotatable around a horizontal axis and a drive source for driving the rotary impeller on a sled extending perpendicularly to the axis; It is supported by a pair of supporting means swingably supported by two swinging shafts that are parallel to each other, including counterweights that have approximately the same weight and a large base area, a connecting cable that connects them to each other, and A roof snow removal machine characterized by having a moving device provided with a connecting cable conveying means having a conveying direction perpendicular to the swing axis. 2. The roof snow remover according to claim 1, wherein the rotation speed of the drive source of the snow removal machine body is variable, and the moving device has means for controlling and stopping the rotation speed. . 3. The roof snow remover according to claim 1 or 2, wherein the support means of the moving device has a roller having a rotation axis perpendicular to the swing axis.