JP2019094628A - Snow removal device - Google Patents

Abstract

To provide a snow removal device capable of comparatively easily and safely removing snow in the present invention.SOLUTION: A snow removal device of the present invention comprises a multi-articulated arm having a continuous pipeline and a snow removal unit held on the tip of the multi-articulated arm so as to freely change the direction, and the snow removal unit comprises a snow collection mechanism having an auger including a spiral feed plate for moving in the axial direction while dividing-loosening snow by rotation, a transfer mechanism for transferring the snow moved by the auger via the pipeline and a recess forming mechanism for forming a recess on a surface of the snow left by the snow collection mechanism. The recess forming mechanism rotates around a vertically moving horizontal shaft, and may have a cutting disk for providing a plurality of blades for shaving off the snow on the outer periphery. The snow removal unit is arranged between the snow collection mechanism and the recess forming mechanism, and may also have a surface-roughening mechanism for surface-roughening a snow surface.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a snow falling device.

  In heavy snow areas, it is necessary to take down the snow on the roof to the ground to prevent the building from collapsing due to the weight of the snow on the roof. Generally, a person climbs on the roof and manually removes snow from the roof using a scoop or a snow dump. In such snow-removing work, there is a possibility that a worker may fall from the roof, or an accident on the ground where a person on the ground is hit by the snow dropped from the roof may cause injury or loss of life.

  Therefore, it has been proposed to scrape off snow on the roof from the ground with a hydraulic shovel by attaching a member having a rubber plate to scrape snow to the tip of the arm of the hydraulic shovel. However, although the rubber plate is attached to the tip, the risk of damaging the roof is increased by using the hydraulic shovel, particularly when snow is solidified. Although it is not impossible to prevent the roof from being damaged even by using a hydraulic shovel by the operation of a skilled operator, it requires an extremely high level of maneuvering technology and it takes time and effort to carry out the operation. Taking into consideration the labor cost etc., it is not realistic to carry out snowfalling work with a hydraulic shovel.

JP 2000-234426 A

  SUMMARY OF THE INVENTION In view of the above problems, the present invention has an object to provide a snowfalling device capable of snowfalling relatively easily and safely.

  A snowfalling device according to the present invention made to solve the above problems comprises: an articulated arm having a continuous conduit; and a snow removal unit held so as to be freely turned to the tip of the articulated arm. A snow collecting mechanism having an auger including a spiral feed plate for moving the snow in the axial direction while breaking the snow by rotation; and a transfer mechanism for transferring the snow moved by the auger through the pipeline. And a depression forming mechanism for forming a depression on the surface of the snow left by the snow collecting mechanism.

  Since the snow removing unit has the snow collecting unit and the transfer mechanism, it is possible to perform the snow moving by operating the articulated arm to move the snow removing unit slowly along the roof. it can. For this reason, the snow-removing device is relatively easy to operate, and it is possible to safely perform snow-falling because no person needs to climb on the roof. In addition, the snow removal device prevents the snow that has newly fallen on the roof from sliding down even if it remains on the roof by the snow removal unit having the depression forming mechanism. Since it can, it can prevent the accident by the snowfall from the roof after snow removal. Therefore, the snowfalling device can prevent the roof from being damaged by moving the snow removal unit so as to leave a small amount of snow on the roof after snow removal without contacting the roof.

  In the snow-falling device, the depression forming mechanism may have a cutting disk provided with a plurality of blades that rotate around a horizontal axis moving up and down and scrape the snow on the outer periphery. As described above, when the depression forming mechanism has the cutting disk moving up and down, unevenness can be formed on the surface even if the snow left on the roof is solidified like an ice. As a result, it is possible to prevent snowfall accidents more reliably by preventing snow that has fallen afterward from becoming slippery on snow left after snow removal.

  In the snow-removing apparatus, the snow removal unit may further include a roughening mechanism disposed between the snow collecting mechanism and the depression forming mechanism. Thus, the snow removal unit additionally has the roughening mechanism disposed between the snow collecting mechanism and the depression forming mechanism, thereby newly depositing the snow surface left on the roof. It is possible to make the snow more slippery.

  In the snow-removing apparatus, the roughening mechanism may have a roughening member having a plurality of projections which reciprocate in parallel with the axis of the auger and project downward. As described above, the roughening mechanism reciprocates in parallel with the axis of the auger, and has a roughening member having a plurality of projections projecting downward, so that the snow surface can be efficiently formed with a relatively simple configuration. Can be roughened.

  The snow-falling device may further comprise a controller for storing the position and shape of the roof and controlling the articulated arm to move the snow removal unit along the surface of the roof. Thus, the snow-falling device automatically performs the snowfalling by further comprising a control device that stores the position and shape of the roof and controls the articulated arm to move the snow removal unit along the surface of the roof. Since the lowering operation can be performed, it is possible to prevent the roof from being damaged or the snow falling due to an operation error.

  As described above, the snowfalling device of the present invention can perform snowfalling relatively easily and safely.

It is a typical side view showing the snow falling device of one embodiment of the present invention. It is a schematic side view which shows the use condition of the snow-falling apparatus of FIG. It is a schematic cross section which expands and shows the snow removal unit of the snow-falling apparatus of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

[Snow-loading device]
FIG. 1 shows a snowfalling device according to an embodiment of the present invention. The snow-falling device includes a self-propelled vehicle body 1, an articulated arm 2 extending from the vehicle body 1, a snow removal unit 3 held so as to be freely turned at the tip of the articulated arm 2, and the vehicle body 1. And a controller 4 for controlling the articulated arm 2.

<Car body>
The vehicle body 1 has a plurality of wheels 5 and a cab 6. The vehicle body 1 further includes a hydraulic pump 7 that pressurizes hydraulic fluid that drives the articulated arm 2 and an outrigger 8 for stabilizing on the ground. Such a vehicle body 1 can be formed by attaching each component to an automobile such as a truck.

<Multi-joint arm>
The articulated arm 2 includes a first arm 9 disposed to be horizontally pivotable in the vehicle body 1, a second arm 10 pivotally connected to the tip of the first arm 9, and a second arm 10. And a holding mechanism 12 provided at the tip of the third arm 11 and capable of changing the direction of the snow removal unit 3. In addition, the articulated arm 2 further has a continuous conduit 13 disposed along the first arm 9, the second arm 10 and the third arm 11.

  The articulated arm 2 adjusts the mutual angle of the first arm 9, the second arm 10 and the third arm 11 to keep the snow removal unit 3 along the roof as shown in FIG. Move it.

  The articulated arm 2 has a sensor that detects the mutual angle of the first arm 9, the second arm 10 and the third arm 11, and the angle of the holding mechanism 12 with respect to the third arm 11, and controls the detected angle upward Preferably, it is arranged to input to the device 4.

(arm)
The first arm 9 is pivoted by a built-in hydraulic motor to determine the extending direction of the second arm 10 and the third arm 11. In addition, the first arm 9 has a length that can secure the installation space of the hydraulic cylinder that causes the second arm 10 to swing. Furthermore, the first arm 9 is a base of the second arm 10 so that the articulated arm 2 can be easily folded and held on the hydraulic pump 7 or the like when the snow lowering device is self-propelled and moved to the use site. It is designed to raise the end position.

  The second arm 10 and the third arm 11 define the distance from the first arm 9 of the holding mechanism 12 and the elevation angle. The lengths of the second arm 10 and the third arm 11 can be, for example, 3 m or more and 6 m or less.

(Retention mechanism)
The holding mechanism 12 is capable of rotating the snow removal unit 3 around an axis perpendicular to the snow removal reference surface of the snow removal unit 3 (virtual surface overlapping with the snow surface formed after snow removal), and perpendicular to the rotation axes and orthogonal to each other It is configured to be capable of swinging around each of two axes. As a result, the holding mechanism 12 can hold the reference surface of the snow removal unit parallel to the surface of the roof regardless of the angles of the second arm 10 and the third arm 11. A wide range of snowfall can be made without moving.

(Pipe line)
The conduit 13 is disposed along at least the second arm 10 and the third arm 11, and serves as a path for transferring the snow removed by the snow removal unit 3 from the top of the roof to the ground. For this reason, one end of the conduit 13 is attached to the snow removal unit 3. On the other hand, it is preferable that the other end of the conduit 13 be freely arrangeable so that the snow can be discharged to, for example, a snow ditch, a truck bed or the like.

  The conduit 13 has a joint having, for example, a plurality of elbows and a rotatable connection at the connection between the second arm 10 and the third arm 11 and the like so as to correspond to the bending and extension of the articulated arm 2. , Flexible hoses and the like. As a specific example, the conduit 13 can be disposed so as to penetrate the axis of each joint of the articulated arm 2 in the same manner as the pipe body of the concrete pump car.

<Snow removal unit>
As shown in FIG. 3, the snow removal unit 3 includes a snow collecting mechanism 14 for raking snow, a transfer mechanism 15 for transferring the snow collected by the snow collecting mechanism 14 through the pipeline 13, and a snow removed by the snow collecting mechanism 14. The roughening mechanism 16 for roughening the snow surface of the snow (which mainly exists below the snow collecting mechanism 14) and the roughening mechanism 16 form a large depression by the roughened snow surface It has a depression forming mechanism 17, a snow collecting mechanism 14, a transfer mechanism 15, and a roughening mechanism 16, and an internal combustion engine 18 that drives the depression forming mechanism 17.

  The snow removal unit 3 scrapes the snow of the upper layer so as to leave a certain thickness of snow on the surface of the roof by the snow collection mechanism 14 and transfers it to the ground through the pipeline 13 by the transfer mechanism 15.

  The snow removal unit 3 preferably has a sensor for detecting the distance to the surface of the roof, a limit switch, and the like in order to prevent the roof from being accidentally touched.

(Snow collecting mechanism)
The snow collecting mechanism 14 is disposed on the front side in the moving direction of the snow removing unit 3 by the articulated arm 2. The snow collecting mechanism 14 has an auger 19 which moves axially while breaking snow by rotation, and a cover 20 which guides the movement of the snow by the auger 19.

  The auger 19 includes one or more spirally formed feed plates 21 for axially moving snow by rotating about an axis parallel to the snow removal unit 3 reference plane. The outer peripheral portion of the feed plate 21 may be formed in a sawtooth shape so as to easily break the solidified snow. The auger 19 may move snow from one side to the other side in the axial direction, but the spiral direction of the feed plate 21 is reversed at the central portion so as to move the snow toward the axial center. Is preferred.

  The cover 20 is formed, for example, in a split cylindrical shape, and is disposed to cover the upper and the rear of the auger 19. The cover 20 also has an outlet communicating with the transfer mechanism 15. The detailed shape of the cover 20 is designed to ensure that the auger 19 supplies snow to the transfer mechanism 15 efficiently.

  Such a snow collecting mechanism 14 can efficiently remove the snow on the roof by scraping the snow on the roof with a fixed width and supplying it to the transfer mechanism 15.

(Transfer mechanism)
The transfer mechanism 15 transfers the snow, which the auger 19 has moved, to the vehicle body 1 through the pipe line 13. The transfer mechanism 15 includes a mechanism for supplying and transporting snow by a blower, a mechanism for circulatingly driving endless loop-like wires for holding a large number of disks circulating in the pipeline 13 at equal intervals, and provided on the vehicle body 1 side. It is possible to use a mechanism or the like that sucks snow by means of a vacuum pump.

  By having the transfer mechanism 15, the snowfalling device can safely move the snow on the roof to the ground.

(Roughening mechanism)
The roughening mechanism 16 can be configured to have one or more roughening members 22 that move parallel to the reference surface and scrape off the snow surface irregularly. The roughening mechanism 16 preferably has a plurality of roughening members 22 reciprocally moving in parallel and alternately in opposite directions to the axis of the auger 19 so that the snow surface can be roughened efficiently.

  The roughening member 22 may be a plate-like, rod-like or frame-like member that has a plurality of downward protruding protrusions and reciprocates in parallel with the axis of the auger 19. By using such a roughening member 22, it is possible to roughen the snow surface relatively easily.

  By having such a roughening mechanism 16, even if the snow left on the roof is icy snow, the snow falling on the roof is not easily slipped off. .

  In addition, the roughening mechanism 16 reciprocates in parallel with the axis of the auger 19 and has a roughening member 22 having a plurality of projections which project downward, so that the efficiency is achieved with a relatively simple configuration. You can often roughen the snow surface.

  The roughening member 22 may be formed, for example, by forming side edges of a plate-like steel material held parallel to the reference surface of the snow removal unit 3 in a serrated manner, and bending this serrated portion downward. it can.

(Indentation mechanism)
The depression forming mechanism 17 can be configured to have a cutting disc 23 which is rotated about a horizontal axis moving up and down and on the outer periphery of which a plurality of blades for scraping snow are provided. By using the cutting disk 23 which partially scrapes off the snow with a rotating blade to form a relatively large depression, the newly formed snow intrudes into the depression formed, and the snow removal unit 3 retains the snow left on the roof. It is possible to more reliably prevent the newly fallen snow from sliding on the surface.

  It is preferable that the cutting disc 23 extends in parallel with the moving direction of the snow removal unit 3 and is disposed movably up and down and rotates around an axis. The depression forming mechanism 17 may be provided in a matrix in which the plurality of cutting disks 23 are arranged in a direction parallel to the axis of the auger 19 and in a direction parallel to the moving direction of the snow removal unit 3.

  The thickness of each cutting disk 23 can be, for example, 2 cm or more and 5 cm or less. By having the cutting disk 23 of such a thickness, it is possible to effectively suppress the newly fallen snow from sliding off.

(Internal combustion engine)
The internal combustion engine 18 has an engine block having a combustion chamber, a fuel tank for storing fuel, a fuel supply system for supplying fuel to the engine block, a charge system for supplying combustion air to the engine block, combustion from the engine block An exhaust system for exhausting the exhaust gas, and a control mechanism for adjusting the fuel supply to the engine block and the air supply amount for combustion can be provided.

  As such an internal combustion engine, for example, a gasoline engine (Otto cycle engine), a diesel engine or the like can be used.

<Control device>
The controller 4 controls the articulated arm 2 to move the snow removal unit 3 along the surface of the roof. The snow-falling device can automatically perform the snow-falling operation by including the control device 4, so that it is possible to prevent the roof from being damaged or the snow falling due to an operation error.

  Such a control device 4 transfers signals between the storage device for storing the position and shape of the roof, the arithmetic device for calculating the appropriate operation of the articulated arm 2, and the articulated arm 2 and the snow removal unit 3 Computer device having an input / output device for

  The position and shape of the roof can be measured, for example, using a drone or the like in a season without snowfall and stored in the storage device of the control device 4. In addition, in order to confirm the position of the vehicle body 1 of the snow-falling device, it is preferable that the storage device of the control device 4 also store the positions of a plurality of structures that can be reference points such as power poles and lightning rods.

<Advantage>
Since the snow removal unit 3 has the snow collection mechanism 14 and the transfer mechanism 15, the snow removal device can perform snow removal by operating the articulated arm 2 so as to move the snow removal unit 3 slowly along the roof. . For this reason, the snow-removing device is relatively easy to operate, and it is possible to safely perform snow-falling because no person needs to climb on the roof.

  Further, since the snow removal unit 3 has the depression forming mechanism 17, the snow removal device can prevent the snow that has newly fallen on the surface of the snow left by the snow removal unit 3 on the roof from sliding off. Therefore, the snowfalling device can prevent the roof from being damaged accidentally by moving the snow removal unit 3 so as to leave a small amount of snow on the roof after snow removal without contacting the roof.

  The snow-removing device has a plurality of cutting disks 23 which are moved up and down by the depression forming mechanism 17 so that even if the snow on the roof is solidified like an ice, the snow which is left without exerting a large force on the roof It is possible to form a depression on the surface with certainty. For this reason. The snowfalling device can prevent snowfall accidents more reliably by preventing snow piled up later from becoming slippery on snow left after snow removal.

  In the snow-falling device, the snow removal unit 3 includes a roughening mechanism 16 disposed between the snow collection mechanism 14 and the depression forming mechanism 17 so that snow around the depression formed by the depression forming mechanism 17 is generated. Since small irregularities are also formed on the surface, it is possible to more reliably prevent the newly fallen snow from sliding off.

Other Embodiments
The above embodiment does not limit the configuration of the present invention. Therefore, the above-mentioned embodiment can omit, substitute or add the components of each part of the above-mentioned embodiment based on the description of the present specification and technical common sense, and all of them are interpreted as belonging to the scope of the present invention It should.

  In the snow-falling device, the vehicle body may have a crawler instead of wheels, or may be a base placed on the ground without a traveling function.

  In the snow-falling device, the articulated arm may be driven by another power such as an electric motor instead of hydraulic pressure.

  The articulated arm of the snow-falling device may be one in which a larger number of arms are connected in a row, and it comprises two arms extending from a base rotatably disposed on the vehicle body and a holding mechanism. May be

  In the snow removal device, the roughening mechanism of the snow removal unit may be omitted.

  The snow removal unit of the snow removal device may have another power source such as an electric motor, a hydraulic motor, etc., instead of the internal combustion engine.

  In the snow-falling device, the control device is not essential, and the operator may steer the articulated arm by manual operation.

  In the snow-falling device, any one of the plurality of arms constituting the articulated arm may be configured to be stretchable.

  The snowfalling device may be configured such that an operator mounts the snow removal unit to operate the articulated arm and the snow removal unit.

  In the snow-removing apparatus, the snow removal unit may have a blower or the like that blows off snow scraped off by the depression forming mechanism or the roughening mechanism.

  The snowfalling device according to the present invention can be suitably used to perform snowfalling work on a roof.

Reference Signs List 1 vehicle body 2 articulated arm 3 snow removal unit 4 control device 5 wheel 6 cab 7 hydraulic pump 8 outrigger 9 first arm 10 second arm 11 third arm 12 holding mechanism 13 pipeline 14 snow collecting mechanism 15 transfer mechanism 16 rough surface Mechanism 17 Indentation mechanism 18 Internal combustion engine 19 Auger 20 Cover 21 Feed plate 22 Roughened member 23 Cutting disc

Claims (5)

An articulated arm having a continuous channel,
A snow removal unit held so as to be freely turned at the tip of the articulated arm;
The above snow removal unit
A snow collection mechanism having an auger including a helical feed plate for axially moving the snow while breaking the snow by rotation;
A transfer mechanism for transferring the snow moved by the auger through the pipeline;
And a depression forming mechanism for forming a depression on the surface of the snow left by the snow collecting mechanism.   2. The snow-falling device according to claim 1, wherein the depression forming mechanism has a cutting disk provided with a plurality of blades that rotate around a horizontal axis moving up and down and scrape snow on the outer periphery.   The snow removal apparatus according to claim 1 or 2, wherein the snow removal unit further includes a roughening mechanism disposed between the snow collecting mechanism and the depression forming mechanism and roughening the snow surface.   4. The snow-falling device according to claim 3, wherein the roughening mechanism has a roughening member having a plurality of projections which reciprocate parallel to the axis of the auger and project downward.   The snow according to any one of claims 1 to 4, further comprising a control device for storing the position and shape of the roof and controlling the articulated arm to move the snow removal unit along the surface of the roof. Unloading device.

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