JP6462092B1 - Snow removal equipment - Google Patents

Abstract

An object of the present invention is to provide a snow removal device that can perform snow removal relatively easily and safely. A snow removal device according to the present invention includes an articulated arm having a continuous conduit, and a snow removal unit that is held at the tip of the articulated arm so that the direction can be freely changed. A snow collecting mechanism having an auger including a spiral feed plate that moves in the axial direction while breaking the snow by rotation, a transfer mechanism for transferring the snow moved by the auger through the conduit, and the snow collecting mechanism And a dent forming mechanism for forming a dent on the remaining snow surface. The recess forming mechanism may have a cutting disc provided with a plurality of blades that rotate about a horizontal axis that moves up and down and scrapes snow on the outer periphery. The snow removal unit may further include a roughening mechanism that is disposed between the snow collecting mechanism and the depression forming mechanism and roughens the snow surface. [Selection] Figure 1

Description

  The present invention relates to a snow removal device.

  In heavy snowfall areas, in order to prevent the building from collapsing due to the weight of snow accumulated on the roof, it is necessary to carry out snow removal to drop the snow accumulated on the roof to the ground. Generally, a person climbs on the roof and manually removes snow from the roof using a scoop or a snow dumper. In such snow-removing work, there is a possibility that an operator may fall from the roof, or an injured person or a life-threatening accident may occur when a person on the ground hits the snow dropped from the roof.

  Therefore, it has been proposed to scrape snow on the roof from the ground with a hydraulic excavator by attaching a member having a rubber plate to scrape snow to the tip of the arm of the hydraulic excavator. However, even if a rubber plate is attached to the tip, particularly when snow is solidified, the risk of damaging the roof is increased by using a hydraulic excavator. Although it is not impossible for a skilled operator to control the roof even if a hydraulic excavator is used, it requires extremely high maneuvering skills and is labor intensive. Considering labor costs etc., it is not realistic to work on snow with a hydraulic excavator.

JP 2000-234426 A

  In view of the above inconveniences, an object of the present invention is to provide a snow removal device that can perform snow removal relatively easily and safely.

  In order to solve the above problems, a snow removal device according to the present invention comprises an articulated arm having a continuous conduit, and a snow removal unit that is held at the tip of the articulated arm so that the direction can be freely changed. A snow collecting mechanism having an auger including a spiral feed plate that moves in the axial direction while breaking the snow by rotation, and a transfer mechanism for transferring the snow moved by the auger through the conduit; And a dent forming mechanism for forming a dent on the surface of the snow left by the snow collecting mechanism.

  In the snow removal device, since the snow removal unit has the snow collecting mechanism and the transfer mechanism, it is possible to perform snow removal by operating the articulated arm so as to move the snow removal unit slowly along the roof. it can. For this reason, the snow removal device is relatively easy to operate, and since it is not necessary for a person to climb the roof, it is possible to perform snow removal safely. In addition, the snow removal device prevents the newly accumulated snow from sliding down on the snow left on the roof even if the snow removal unit has the dent formation mechanism in the snow removal unit. As a result, accidents caused by falling snow from the roof after snow removal can be prevented. For this reason, the snow removal device can prevent the roof from being accidentally damaged by moving the snow removal unit so that a small amount of snow remains on the roof after snow removal without bringing the snow removal unit into contact with the roof.

  In the snow removal device, the dent forming mechanism may have a cutting disc provided with a plurality of blades that rotate about a horizontal axis that moves up and down and scrapes snow on the outer periphery. Thus, by having the cutting disk in which the dent forming mechanism moves up and down, even if the snow left on the roof is hardened in an ice shape, irregularities can be formed on the surface thereof. As a result, it is possible to prevent the snow falling later from becoming slippery on the snow left after the snow removal, and to more reliably prevent a snowfall accident.

  In the snow removal device, the snow removal unit may further include a roughening mechanism disposed between the snow collecting mechanism and the depression forming mechanism. As described above, the snow removal unit further includes a roughening mechanism disposed between the snow collecting mechanism and the depression forming mechanism, so that the snow surface left on the roof is newly accumulated. It is possible to make sure that the snow slides down.

  In the snow removal device, the roughening mechanism may include a roughening member having a plurality of protrusions that reciprocate in parallel with the axis of the auger and protrude downward. As described above, the roughening mechanism has a roughening member having a plurality of protrusions that reciprocate in parallel with the axis of the auger and protrude downward, and thus the snow surface can be efficiently obtained with a relatively simple configuration. Can be roughened.

  The snow removal device may further include 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. Thus, 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, the snow removal device can automatically Since the unloading work can be performed, damage to the roof and snowfall due to operational mistakes can be prevented.

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

It is a typical side view showing a snow removal device of one embodiment of the present invention. It is a typical side view which shows the use condition of the snow removal apparatus of FIG. It is typical sectional drawing which expands and shows the snow removal unit of the snow removal apparatus of FIG.

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

[Snow removal equipment]
FIG. 1 shows a snow removal device according to an embodiment of the present invention. The snow removal device includes a self-propelled vehicle body 1, a multi-joint arm 2 extending from the vehicle body 1, a snow removal unit 3 that is held at the tip of the multi-joint arm 2 so that the direction can be freely changed, and a vehicle body 1. And a control device 4 for controlling the articulated arm 2.

<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 the hydraulic oil that drives the articulated arm 2, and an outrigger 8 that is stabilized on the ground. Such a vehicle body 1 can be formed by attaching each component to a vehicle such as a truck.

<Articulated arm>
The multi-joint arm 2 includes a first arm 9 disposed on the vehicle body 1 so as to be turnable in the horizontal direction, a second arm 10 provided in a swingable manner at 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 for holding the snow removal unit 3 so that the orientation of the snow removal unit 3 can be changed. The multi-joint arm 2 further includes a continuous pipe line 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 adjust the snow removal unit 3 held at the tip portion along the roof as shown in FIG. Move.

  The articulated arm 2 has sensors that detect the mutual angles 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 control the detected angle upward. It is preferably configured to input to the device 4.

(arm)
The first arm 9 is rotated by a built-in hydraulic motor to determine the direction in which the second arm 10 and the third arm 11 extend. The first arm 9 has a length that can secure a space for arranging the hydraulic cylinder that swings the second arm 10. Further, 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 removal device is self-propelled and moved to the site of use. Designed to increase the end position.

  The second arm 10 and the third arm 11 determine the distance and the elevation angle of the holding mechanism 12 from the first arm 9. 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.

(Holding mechanism)
The holding mechanism 12 can rotate the snow removal unit 3 around an axis perpendicular to the snow removal reference surface of the snow removal unit 3 (virtual surface overlapping the snow surface formed after snow removal), and is perpendicular to the rotation axis and perpendicular to each other. It is comprised so that it can rock | fluctuate each centering on 2 axis | shafts to perform. Thereby, since the holding mechanism 12 can hold the reference plane of the snow removal unit in parallel with the surface of the roof regardless of the angles of the second arm 10 and the third arm 11, the snow removal device can hold the vehicle body 1 in place. A wide range of snow can be removed without moving.

(Pipe)
The pipe line 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 from the roof by the snow removal unit 3 to the ground. For this reason, one end of the conduit 13 is attached to the snow removal unit 3. On the other hand, the other end of the conduit 13 is preferably configured to be freely arranged so that snow can be discharged into, for example, a snow drift groove, a truck bed, or the like.

  The pipe line 13 has a joint having, for example, a plurality of elbows and a rotatable connection part at both ends, a connection part between the second arm 10 and the third arm 11, etc. so as to be able to cope with bending and stretching of the articulated arm 2. And a flexible structure such as a flexible hose. As a specific example, the pipe line 13 can be disposed so as to penetrate the shafts of the joint portions of the multi-joint arm 2, similarly to 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 that collects snow, a transfer mechanism 15 that transfers the snow collected by the snow collecting mechanism 14 through a conduit 13, and snow left by the snow collecting mechanism 14. A roughening mechanism 16 that roughens the snow surface of the snow (mainly snow that exists below the snow collecting mechanism 14), and the roughening mechanism 16 forms a large depression on the roughened snow surface. It has a depression forming mechanism 17, a snow collecting mechanism 14, a transfer mechanism 15, a roughening mechanism 16, and an internal combustion engine 18 that drives the depression forming mechanism 17.

  The snow removal unit 3 scrapes off the upper layer snow so as to leave a certain thickness of snow on the surface of the roof by the snow collecting mechanism 14, and transports it to the ground through the conduit 13 by the transport mechanism 15.

  The snow removal unit 3 preferably has a sensor for detecting a distance from the roof surface, a limit switch, and the like in order to prevent accidental contact with the roof.

(Snow collecting mechanism)
The snow collecting mechanism 14 is disposed on the front side in the moving direction of the multi-joint arm 2 of the snow removal unit 3. The snow collecting mechanism 14 includes an auger 19 that moves in the axial direction while breaking the snow by rotation, and a cover 20 that guides the movement of the snow by the auger 19.

  The auger 19 includes a feed plate 21 formed in one or a plurality of spirals so as to move snow in the axial direction by rotating around an axis parallel to the reference plane of the snow removal unit 3. The feed plate 21 may be formed in a sawtooth shape on the outer periphery so as to easily break the hardened snow. The auger 19 may move the snow from one axial side to the other, 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. It is preferable.

  The cover 20 is formed in, for example, a split cylindrical shape, and is disposed so as to cover the upper and rear sides of the auger 19. The cover 20 has a discharge port that communicates with the transfer mechanism 15. The detailed shape of the cover 20 is designed to ensure that the auger 19 efficiently supplies snow to the transfer mechanism 15.

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

(Transfer mechanism)
The transfer mechanism 15 transfers the snow moved by the auger 19 to the vehicle body 1 side through the conduit 13. The transfer mechanism 15 includes a mechanism that supplies and transports snow by a blower, a mechanism that circulates and drives an endless loop-like wire that holds a large number of disks circulating in the pipeline 13 at equal intervals, and is disposed on the vehicle body 1 side. A mechanism for sucking snow with a vacuum pump can be used.

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

(Roughening mechanism)
The roughening mechanism 16 may be configured to include one or a plurality of roughening members 22 that move parallel to the reference surface and scrape off the snow surface irregularly. It is preferable that the roughening mechanism 16 has a plurality of roughening members 22 that reciprocate in opposite directions in parallel with the axis of the auger 19 in order to be able to roughen the snow surface efficiently.

  The roughening member 22 has a plurality of protrusions that protrude downward, and can be a plate-like, bar-like, or frame-like member that reciprocates in parallel with the axis of the auger 19. By using such a roughening member 22, the snow surface can be roughened relatively easily.

  By having such a roughening mechanism 16, even if the snow left on the roof is snow solidified in an ice shape, the newly accumulated snow does not easily slide down. .

  Further, the roughening mechanism 16 reciprocates in parallel with the axis of the auger 19 and has a roughening member 22 having a plurality of protrusions protruding downward, so that it is efficient with a relatively simple configuration. The snow surface can be roughened well.

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

(Indentation mechanism)
The dent forming mechanism 17 can be configured to have a cutting disk 23 provided with a plurality of blades that rotate about a horizontal axis that moves up and down and scrapes snow on the outer periphery. By using the cutting disc 23 that partially scrapes off the snow with a rotating blade to form a relatively large depression, newly falling snow enters the formed depression, and the snow removal unit 3 leaves the snow left on the roof. It is possible to more reliably prevent the newly accumulated snow from slipping on the surface.

  It is preferable that the cutting disk 23 extends parallel to the moving direction of the snow removal unit 3, is arranged to be movable up and down, and rotates about an axis. The recess forming mechanism 17 may be provided in a matrix in which a plurality of cutting disks 23 are arranged in a direction parallel to the axis of the auger 19 and 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 disc 23 having such a thickness, it is possible to effectively prevent the newly accumulated snow from sliding down.

(Internal combustion engine)
The internal combustion engine 18 has an engine block having a combustion chamber, a fuel tank that stores fuel, a fuel supply system that supplies fuel to the engine block, an air supply system that supplies combustion air to the engine block, and combustion from the engine block An exhaust system that discharges exhaust gas and a control mechanism that adjusts the amount of fuel supplied to the engine block and the amount of air supplied for combustion can be provided.

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

<Control device>
The control device 4 controls the articulated arm 2 to move the snow removal unit 3 along the surface of the roof. Since the snow removal device can automatically perform snow removal work by providing the control device 4, it can prevent damage to the roof and snowfall due to an operation error.

  Such a control device 4 transfers signals between the storage device that stores the position and shape of the roof, the arithmetic device that calculates the appropriate operation of the multi-joint arm 2, and the multi-joint arm 2 and the snow removal unit 3. And a computer device having an input / output device.

  The position and shape of the roof can be measured using, for example, a drone in a season without snowfall and stored in the storage device of the control device 4. Further, in order to confirm the position of the vehicle body 1 of the snow removal device, the storage device of the control device 4 preferably stores the positions of a plurality of structures that can serve as reference points such as utility poles and lightning rods.

<Advantages>
In the snow removal device, since the snow removal unit 3 has the snow collecting mechanism 14 and the transfer mechanism 15, it is possible to remove snow by operating the articulated arm 2 so that the snow removal unit 3 moves slowly along the roof. . For this reason, the snow removal device is relatively easy to operate, and since it is not necessary for a person to climb the roof, it is possible to perform snow removal safely.

  Moreover, since the snow removal unit 3 has the hollow formation mechanism 17, the snow removal device can prevent the snow newly accumulated on the surface of the snow left on the roof by the snow removal unit 3 from sliding down. For this reason, the snow removal device can prevent the roof from being accidentally damaged by moving the snow removal unit 3 so that a small amount of snow remains on the roof after snow removal without bringing the snow removal unit 3 into contact with the roof.

  The snow removing device has a plurality of cutting disks 23 in which the dent forming mechanism 17 moves up and down, so that even if the snow on the roof is hardened in an ice shape, a large force is not applied to the roof, and the remaining snow is left. A recess can be reliably formed on the surface. For this reason. The snow removal device can prevent a snowfall accident more reliably by preventing the snow that has been accumulated later from slipping on the snow left after the snow removal.

  In the snow removal device, the snow removal unit 3 has the roughening mechanism 16 disposed between the snow collecting mechanism 14 and the depression forming mechanism 17, so that the snow around the depression formed by the depression forming mechanism 17. Since small irregularities are also formed on the surface, it is possible to more reliably prevent the newly accumulated snow from sliding down.

[Other Embodiments]
The said embodiment does not limit the structure of this invention. Therefore, in the above-described embodiment, the components of each part of the above-described embodiment can be omitted, replaced, or added based on the description and common general knowledge of the present specification, and they are all interpreted as belonging to the scope of the present invention. Should.

  In the snow removal device, the vehicle body may have a crawler instead of the wheel, and may be a base that does not have a traveling function and is disposed on the ground.

  In the snow removal device, the articulated arm may be driven by other power such as an electric motor, for example, without using hydraulic pressure.

  The articulated arm of the snow removal device may be one in which a larger number of arms are connected in series, and is composed of two arms extending from a base that is 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 or a hydraulic motor instead of the internal combustion engine.

  In the snow removal device, the control device is not essential, and the operator may operate the articulated arm by a manual operation.

  In the snow removal device, any of the plurality of arms constituting the multi-joint arm may be configured to be extendable and contractible.

  The snow removal device may be configured such that an operator rides on the snow removal unit and operates the articulated arm and the snow removal unit.

  In the snow removal device, the snow removal unit may include a blower or the like that blows off the snow scraped off by the dent forming mechanism or the roughening mechanism.

  The snow removal device according to the present invention can be suitably used for snowing a roof.

DESCRIPTION OF SYMBOLS 1 Car body 2 Articulated arm 3 Snow removal unit 4 Control apparatus 5 Wheel 6 Driver's cab 7 Hydraulic pump 8 Outrigger 9 1st arm 10 2nd arm 11 3rd arm 12 Holding mechanism 13 Pipe line 14 Snow collecting mechanism 15 Transfer mechanism 16 Rough surface Forming mechanism 18 hollow forming mechanism 18 internal combustion engine 19 auger 20 cover 21 feed plate 22 roughening member 23 cutting disc

Claims (5)

An articulated arm having a continuous line;
A snow removal unit that is held at the tip of the articulated arm so that the direction can be freely changed,
The snow removal unit
A snow collecting mechanism having an auger including a spiral feed plate that moves in the axial direction while breaking the snow by rotation;
A transfer mechanism for transferring the snow moved by the auger through the conduit;
A snow lowering device comprising: a dent forming mechanism that forms a dent on the surface of snow left by the snow collecting mechanism.   The snow lowering device according to claim 1, wherein the depression forming mechanism includes a cutting disc provided with a plurality of blades that rotate about a horizontal axis that moves up and down and scrapes snow on an outer periphery.   The snow removal device according to claim 1, wherein the snow removal unit further includes a roughening mechanism that is disposed between the snow collecting mechanism and the dent forming mechanism and roughens the snow surface.   4. The snow removal device according to claim 3, wherein the roughening mechanism has a roughening member having a plurality of protrusions that reciprocate in parallel with the axis of the auger and protrude downward.   The snow according to any one of claims 1 to 4, 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. Unloading device.

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