JP4797139B2 - Snow removal equipment - Google Patents

Description

  The present invention relates to a snow unloading device comprising a snow unloading unit and a drive device for driving the snow unloading unit, more specifically, the snow unloading units are configured to be sequentially connected through a coupling by a required number, and The motor of the drive device relates to a snow lowering device configured to be operated by a fluid pressure such as tap water pressure, circulating water pressure, and air pressure.

  In the heavy snow zone, the snow falling on the roof of the building is regularly dropped mainly by human manual work as is well known. Such manual snow removal is a harsh manual labor for the elderly, and is also a dangerous work with falling death. Therefore, Patent Document 1 proposes a mechanical snow removal machine.

JP-A-9-279794

  The snow lowering machine shown in Patent Document 1 includes a motor fixed to a roof, a drive shaft that is rotatably supported on the roof, and is similarly supported on the roof at a predetermined interval from the drive shaft. And a belt-like cloth hung endlessly between the drive shaft and the rotation shaft. And snow is piled up on the belt-like cloth. Therefore, when the drive shaft is rotationally driven by the motor, the belt-shaped cloth is driven toward the eaves on the upper surface of the roof, and the snow on the roof, that is, the snow that accumulates on the cloth, is dropped below the eaves.

According to the snow lowering machine, for example, when a switch is pressed, the motor is activated and the belt-like cloth is driven from above to below, so that the snow on the cloth is mechanically and safely dropped onto the ground from the eaves of the roof. The advantage is recognized.
However, there are many points to be improved or problems. For example, a belt-like cloth must be attached at the beginning and end of the snow season, but such attachment / removal work is a high-altitude work on a high roof, which is inconvenient for the elderly. Nearly possible. In addition, it is difficult to implement in areas where multiple workers are required and depopulation has progressed. Furthermore, the installation may require fine adjustment by a specialized worker. For these reasons, there is a problem in carrying out maintenance because of high maintenance costs. Of course, if the belt-like cloth is attached in the seasons other than the winter season, the above-mentioned maintenance problems such as attachment / detachment will be solved. This leads to another problem of damaging the aesthetics of the environment. In addition, a belt-like cloth must be determined for each roof size, and is not versatile, which may increase costs. Furthermore, although the motor is an electric motor, there is a problem that power corresponding to the weight of the snow is required, a large energy source is required, and the motor does not operate during a power failure.
The present invention is intended to provide a snow removal device that solves the above-mentioned drawbacks or problems. Specifically, it is free to maintain and does not particularly impair the surrounding environmental aesthetics. The purpose is to provide a snow lowering device that can cope with the width of the roof, and that also operates during power outages.

In order to achieve the above object, according to the present invention, a snow lowering device includes a snow lowering unit that is increased or decreased according to the width of a roof, and preferably a single driving device that drives the unit. In general, a plurality of snow removal units are applied. The plurality of snow lowering units are sequentially joined through the coupling so as to fill the roof. Such a snow lowering unit has a snow lowering plate. On the other hand, a cover is provided in the vicinity of the roof of the target building. The snow lowering plate is usually housed in the cover in a coil shape or an armor door type, and is configured to be pulled out from the cover only during the snow lowering operation. This avoids impairing the roof's aesthetics while attached. Thus, the invention according to claim 1 comprises a snow lowering unit and a driving device that drives the snow lowering unit, and when the snow lowering unit is driven by the driving device, the snow on the roof of the building falls to the ground. A snow lowering device, wherein the snow lowering unit includes a unit side drive shaft disposed substantially parallel to the eaves of the building, and the unit near the building ridge. A unit driven shaft arranged substantially parallel to the side drive shaft, a pair of chains hung between unit side sprockets attached to these shafts at a predetermined interval, and these chains The snow lowering plate is attached in the middle, and the snow lowering plate is provided with a plurality of snow-cutting poles at the tip thereof and is usually provided near the ridge. It is housed in a cover or coiled in a covered cover, pulled out from the cover by the chain when the snow is lowered, spread on the roof while cutting the bottom of the accumulated snow, and the snow on the snow lowering plate is The end of the unit-side drive shaft and the driven shaft is provided with a coupling for sequentially connecting these shafts in the axial direction. It consists of a motor that operates by fluid pressure such as pressure, circulating water pressure, air pressure, etc., and the motor is installed in a place where it does not suffer from snow damage or freezing in winter, and its output is transmitted to the snow removal unit by a chain or belt It has become.
According to a second aspect of the present invention, in the apparatus of the first aspect, the snow lowering plate is adapted to be extended on the roof when the sensor detects a predetermined amount of snow. In the apparatus according to claim 1 or 2, a heater is built in the snow lowering plate and the hole, and the invention according to claim 4 is the apparatus according to any one of claims 1 to 3, An alarm is configured to be activated when the snowblower is extended.

  As described above, the snow lowering device according to the present invention includes the snow lowering unit and the driving device that drives the snow lowering unit. When the snow lowering unit is driven by the driving device, the snow lowering plate is placed on the roof of the building. In addition to being extended, the snow on the roof is cut in the vertical direction by the plurality of poles, so that the snow on the roof easily falls on the snow lowering plate. Therefore, the snow on the snow lowering plate can be naturally dropped to the ground by its own weight due to a decrease in frictional force and a phenomenon such as wind force. At this time, according to the present invention, the snow lowering plate is housed in a coil shape or an armor door type in the cover in the vicinity of the ridge, so that the aesthetic appearance is not impaired when not used. Therefore, there is no need to install and remove it every season, and maintenance is free. In addition, since the snow removal device is unitized, it can be mass-produced inexpensively according to the standard. And it can respond to the breadth of the object roof only by connecting via a coupling at the time of use. Furthermore, since the motor of the drive device is operated by fluid pressure, it is possible to remove snow even during a power failure. When the controller, sensor S, etc. do not operate due to a power failure, the working fluid can be manually supplied to or discharged from the motor. According to another invention, since the heater is provided on the snow lowering plate and the pole, the snow on the snow lowering plate is partially melted and the frictional force is reduced, making it more slippery and easier to split. Therefore, the effect of falling more efficiently can be obtained. Furthermore, according to another invention, the alarm is activated when the snow lowering plate is extended, so that it is possible to draw attention to passers-by such as under the eaves, thereby preventing an accident.

  Hereinafter, an embodiment of the present invention will be described with reference to FIG. 1A is a perspective view showing the whole, and FIG. 1B is an enlarged perspective view of an essential part thereof. As shown in these figures, the snow lowering apparatus according to the present embodiment is shown in FIG. The snow lowering unit 1 and a drive device 30 for driving the snow lowering unit 1 are provided. And, as will be described later, when the target roof R is wide, in other words, when it is long in the horizontal direction, the plurality of snow removal units 1 are sequentially connected or connected in the width direction so as to cover the whole. It has come to be.

  The snow removal unit 1 includes a single unit-side drive shaft 2 having a predetermined length in the axial direction and a single unit-side driven shaft 3 arranged in parallel to the unit-side drive shaft 2. The unit side drive shaft 2 is cut halfway. As a result, the snow lowering plate 20 described later can be driven to the eaves N point. Couplings 5 and 6 are provided at both ends of the unit-side drive shaft 2 thus cut, and a motor-side drive shaft 34 of a drive device 30 described later is connected to one coupling 6 and the other cup The ring 5 is connected to a unit side drive shaft of another snow removal unit (not shown). Couplings 7 and 8 are also provided at both ends of the unit side driven shaft 3. The unit side drive shaft 2 is rotatably supported in the vicinity of the front end of the eaves N of the building so as to be rotatable substantially parallel to the eaves end, and the unit side driven shaft 3 is connected to the unit side drive shaft 2 near the building ridge M. The bearing is rotatably supported by a bearing (not shown) substantially in parallel. A pair of unit-side drive sprockets 10 and 11 are attached to the unit-side drive shaft 2 thus configured at a predetermined interval, and the unit-side driven shaft 3 is paired with the drive sprockets 10 and 11. A pair of unit-side driven sprockets 12 and 13 are attached. A pair of chains 14 and 15 are hung between the unit side drive sprockets 10 and 11 and the unit side driven sprockets 12 and 13.

  The tip of the snow lowering plate 20 is attached between the chains 14 and 15 that are hung as described above. The snow lowering plate 20 has a width that can be accommodated between the chains 14 and 15 of the snow lowering unit 1 or between the sprockets 10 and 11 and between the sprockets 12.13, and is long enough to cover the roof R. As shown in the enlarged view (b) of FIG. 1, a plurality of poles 21, 21,... Therefore, when the snow lowering plate 20 is driven downward while being placed on the snow lowering plate 20 while cutting the bottom of the snow piled on the roof R, the snow is vertically moved in a plurality of directions by the poles 21, 21,. Will be divided. Brackets 22 and 22 having a predetermined height are attached to both sides of such a snow lowering plate 20, and the leading ends thereof are enlarged and shown in FIG. , 15a. The return-side chains 14 b and 15 b are attached to the back surfaces of the brackets 22 and 22. The brackets 22 and 22 are attached rearward from the tip of the snow lowering plate 20 by a distance L. Therefore, when the snow lowering plate 20 is drawn out from the cover, even if the brackets 22 and 22 stop near the unit-side drive sprockets 10 and 11, the tip of the snow lowering plate 20 slightly protrudes from the eaves N. Although not shown in FIG. 1A, a cover is provided in the vicinity of the building ridge M, and the snow lowering plate 20 is coiled or armored between the unit-side driven sprockets 12 and 13. It is designed to be rolled up and stored.

  A heater is provided inside the snow lowering plate 20 and the poles 21, 21,.

  The drive device 30 includes, for example, a motor 31 as described in Japanese Patent Application Laid-Open No. 2004-003138, a motor-side sprocket 33 attached to the output shaft 32 of the motor 31, and a motor side attached to the roof R so as to be rotatable. It consists of a motor side sprocket 35 provided on the drive shaft 34. A chain 36 is looped between the motor side sprockets 33 and 35, and a coupling 37 is attached to the end of the motor side drive shaft 34.

  As the motor 31, the one disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 2004-003138 can be applied. Therefore, although not described in detail, a pair of drive levers and a pair of reciprocating water pipes connected to these drive levers It consists of a hydraulic cylinder. The drive lever is connected to the output shaft 32 via a ratchet mechanism. Further, an operation unit 31 'and an open / close switching unit (31') are also provided. The operation unit supplies and discharges tap water to and from a tap water pressure cylinder and is operated by a drive lever. The open / close switching unit switches the rotation direction of the output shaft and can be switched by a ratchet mechanism. Such a drive unit 30, particularly the motor 31, a controller 40 to be described later, and the like are installed indoors that are not damaged by snow or frozen in winter.

  The snow removal device according to the present embodiment also includes a controller 40. The controller 40 has various functions as will be described in the next section, and also includes setting means for setting various values. For example, a sensor S for detecting the amount of snow is provided in the vicinity of the roof. When a predetermined amount of snow is accumulated, the motor 31 is started by being output to the operation unit 31 ′ by a signal from the controller 40. . In addition, an alarm P is provided near the eaves N, and an alarm is issued during the snow lowering operation. Further, a limit switch LS is provided as a safety device at the tip of the snow lowering plate 20, and this switch LS is used to lower the snow. When it is detected that the plate 20 has reached the lower end, the motor 31 is stopped.

  Next, the operation of the above embodiment will be described. As shown in FIG. 1A, the snow removal unit 1 is set on the roof R, and the motor 31, the controller 40, and the like of the driving device 30 are set indoors. Further, according to the size of the roof R, the required number of snow removal units 1 are sequentially connected via the couplings 5 and 6. When set in this way, the snow lowering plate 20 is wound between the unit-side driven sprockets 12 and 13 in a coil shape or an armored door type and is accommodated in the cover, and the portion exposed to the outside is the unit-side drive sprockets 10 and 11 and the chain. It will be only 14 and 15, etc., and there will be no particular damage to the roof tile landscape outside of winter. In addition, the part exposed outside can also be painted in the same color as the roof.

  Conditions for operating the motor 31 are set in the controller 40. For example, when the sensor S installed in the vicinity of the roof R measures a predetermined amount of snow, it is set so as to start heating by energizing the snow lowering plate 20 and the poles 21, 21,. Further, the motor 31 is set to stop when the motor 31 rotates a predetermined number of times in the forward direction and the tip of the snow lowering plate 20 reaches the vicinity of the eaves N. Furthermore, after a predetermined time has elapsed, or when the snow on the snow lowering plate 20 falls, a predetermined number of rotations in the reverse direction are set. Then, when the sensor S detects that a predetermined amount of snow has accumulated on the roof R, the snow lowering plate 20 and the poles 21, 21,... Are heated, and the motor 31 is automatically activated so that the output shaft 32 is predetermined in the forward direction. Rotate by number. The snow scraper 20 is driven to extend downward from the inside of the cover, and its tip reaches the eaves N while cutting the bottom of the accumulated snow. At this time, the snow on the snow lowering plate 20 is divided in the vertical direction by the poles 21, 21,. The snow on the snow lowering plate 20 is partially melted by the heat of the heater and becomes slippery, and since it is divided in the vertical direction, the snow eventually slides down due to factors such as reduced frictional force and wind pressure. . At this time, the alarm P is activated, so that passersby, workers, etc. are not caught in the falling snow. When the snow falls or when the limit switch LS detects that the tip of the snow lowering plate 20 has reached the eave N, the motor 31 rotates a predetermined amount in the reverse direction, and the snow lowering plate 20 is restored to the original state by the restoring force of the spring. Fits in a coiled or armored door form within the cover. Wait for the next operation.

  The present invention is not limited to the above embodiment and can be implemented in various forms. For example, a laser displacement meter can be applied to a sensor that detects the amount of snow in the snow. Also, instead of setting the number of revolutions of the motor 30, switches such as limit switches and proximity switches are provided near the front end of the eave N and near the building M, and when the switch detects the front end of the snow lowering plate 20, It is clear that the rotation direction and the rotation speed of the motor 31 can be controlled by the signal. Further, the surface of the snow lowering plate 20 can be coated with, for example, a fluorine resin having a small friction coefficient. Or resin with a small friction coefficient can also be laminated | stacked on other resin. If implemented in this way, the snow on the snow lowering plate 20 is cut off, so it falls by its own weight without necessarily being heated.

  Furthermore, although it has been described in the above embodiment that the snow lowering plate 20 is wound in a coil shape by the restoring force of the spring, the motor side drive shaft 34 and the motor side driven shaft 34 'are shown in FIG. The motor side drive shaft 34 and the unit side drive shaft 2 are joined by a one-way clutch so that the motor side driven shaft 34 'and the unit side driven shaft 3 are connected to each other. It can also be implemented to connect with a one-way clutch that is joined when rotating in the other direction. If implemented in this way, when the motor 31 rotates in the forward direction, the unit side drive shaft 2 rotates in the forward direction, and the unit side driven shaft 3 becomes free. Thereby, for example, the snow lowering plate 20 wound around the unit side driven shaft 3 in a coil shape is fed out. On the other hand, when the motor 31 rotates in the reverse direction, the unit side drive shaft 2 becomes free and the unit side driven shaft 3 is driven. Thereby, the snow lowering board 20 extended on the roof R is stored in the shape of a coil or an armored door.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the snow lowering apparatus concerning embodiment of this invention, The (a) is a perspective view which shows the whole, (b) It is a perspective view which expands and shows the principal part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Snow lowering unit 14, 15 Chain 20 Snow lowering plate 21 Pole 30 Drive apparatus 31 Motor 40 Controller
M ridge N eaves R roof P alarm

Claims (4)

A snow lowering device comprising a snow lowering unit and a drive device that drives the snow lowering unit, and when the snow lowering unit is driven by the drive device, the snow on the roof of the building falls to the ground. ,
The snow removal unit is disposed in the vicinity of the eaves of the building, substantially in parallel with the eaves of the building, and in the vicinity of the building ridge, and substantially in parallel with the unit-side drive shaft. It consists of a unit side driven shaft, a pair of chains hung between unit side sprockets attached to these shafts at a predetermined interval, and a snow lowering plate attached between these chains,
The snow lowering plate is provided with a plurality of snow-cutting poles at the tip thereof, and is usually housed in a coil shape or an armored door in a cover provided near the ridge. It is pulled out from the cover by the above, and is spread on the roof while cutting the bottom of the accumulated snow, so that the snow on the snow lowering plate slides down by its own weight,
At the end of the unit side drive shaft and the driven shaft, a coupling for sequentially connecting these shafts in the axial direction is provided,
The drive device is composed of a motor that operates by fluid pressure such as tap water pressure, circulating water pressure, air pressure, etc., and the motor is installed in a place where it is not damaged by snow or frozen in winter, and its output is output to the snow removal unit. A snow lowering device characterized by being transmitted by a chain or a belt. 2. The snow lowering apparatus according to claim 1, wherein the snow lowering plate is extended on the roof when the sensor detects a predetermined amount of snow. 3. A snow lowering apparatus according to claim 1, wherein a heater is built in the snow lowering plate and the hall. 4. The apparatus according to claim 1, wherein when the snow lowering plate is extended, an alarm is activated.

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