JP2016084575A - Snow removal device for roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a snow remover for a roof capable of safely and automatically removing snow from the roof.SOLUTION: A snow remover 1 for a roof comprises a shovel 8 moving up and down in an inclined direction of a roof R of a building B, and a slider 7 reciprocating the shovel 8 in the inclined direction. The shovel 8 comprises a bottom plate disposed along the roof, and a standing part standing upward from the bottom plate. The shovel 8 cuts and slide the snow on the roof to remove it while moving up in the inclined direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a roof snow removal device for removing snow accumulated on an inclined roof.

  In heavy snowfall, it is indispensable to carry out snow removal on a roof regularly. However, it requires a lot of labor to perform this snow removal work manually, and there is a risk of a fall accident. In view of this, a snow removal device for roof that automatically performs snow lowering work has been proposed. For example, the snow removal device for roof described in Patent Document 1 is configured to cut a snow layer while lowering a movable part along the roof and slide the snow layer by its own weight.

JP-A-11-152937

  However, in the conventional snow removal device for a roof mentioned above, since all the snow accumulated on the roof is cut | disconnected at once, the load with respect to a movable part is large. Moreover, since the snow layer is cut at the full width of the roof while moving the movable part from the top to the bottom, it is unclear how the snow slides down. Even if the snow layer slides down, a large amount of snow on the roof will slide down at a stretch, which may damage equipment such as firewood. There wasn't. Furthermore, the snow dropped from the roof collected under the eaves of the roof and had to be transported again to a gutter or the like.

  An object of the present invention is to provide a snow removal device for a roof that can automatically perform snow removal on the roof more safely.

  Another object of the present invention is to provide a snow removal device for a roof that can transport snow accumulated on the roof to a predetermined position.

  The snow removal device for roof according to claim 1 of the present invention includes an excavator part that can be moved up and down along the inclination direction of the roof of the building, and a first transport unit that reciprocates the excavator part along the inclination direction, The shovel part includes a bottom plate along the surface of the roof, and a standing part standing up from the bottom plate, and the snow that has accumulated on the roof as the shovel part rises along the inclined direction. It is characterized by cutting snow and sliding down to remove snow.

  In the snow removal device for roof according to claim 2 of the present invention, the shovel part further includes a frictional resistance reducing sheet having one end fixed to the bottom plate, and a winding mechanism for winding the frictional resistance reducing sheet, The first conveying means includes a first rail member extending along the inclined direction, the winding mechanism is fixed to the first rail member, and when the excavator portion is raised, the frictional resistance reducing sheet is When the excavator part is pulled out from the winding mechanism and the excavator part is lowered, the frictional resistance reducing sheet is taken up by the winding mechanism, and the snow mass cut by the excavator part slides down on the frictional resistance reducing sheet. Features.

  In the snow removal device for roof according to claim 3 of the present invention, the winding mechanism includes a support portion fixed to the first rail member, and a roller supported by the support portion at a position separated from the roof. And a reel that is supported by the support portion and winds up the frictional resistance reducing sheet, wherein the reel is positioned below the roller, and the frictional resistance decreasing sheet that is pulled out from the reel is the reel It extends over a roller and extends linearly from the roller to the bottom plate.

  The snow removal device for roof according to claim 4 of the present invention is characterized in that the excavator portion is configured to remove snow while repeating ascent and pause.

  The snow removal device for roof according to claim 5 of the present invention further includes a second conveying means for reciprocating the first conveying means in the horizontal direction together with the shovel portion, and the first conveying means is provided on the lower surface. A hollow first rail member that is formed with a slit and extends along the tilt direction, and first moving means that is received and held in the first rail member and reciprocates in the tilt direction. The second transfer means is connected to the first moving means via the slit of the first rail member, and the second conveying means includes a hollow second rail member having a slit formed on a lower surface and extending along a horizontal direction, and the second rail. Second moving means that is housed and held in a member and reciprocates in the horizontal direction, and the first transport means is connected to the second moving means via the slit of the second rail member, and the excavator It is characterized in that to continue to snow snow of the roof by repeating the movement and to reciprocate in the horizontal direction to the inclination direction.

  The roof snow removal device according to claim 6 of the present invention further includes a transport means for transporting a snow mass that has been cut by the excavator and slid down, and the transport means is installed on the underwater side of the roof. And the auger housed in the cover portion, the snow mass cut by the excavator portion and sliding down falls into the cover portion, and the auger conveys the snow mass in a predetermined direction while breaking down the snow mass. It is characterized by that.

  According to the snow removal device for roof according to claim 1 of the present invention, the shovel portion includes the bottom plate along the surface of the roof and the upright portion rising from the bottom plate. Therefore, when the shovel portion rises, the snow on the roof is cut. And slide down due to its own weight. Therefore, snow on the roof can be removed regardless of human power. Further, since the snow is cut and removed while the excavator ascends, a large amount of snow on the roof does not slide down at a stretch, and damage to the roof and equipment near the roof due to the weight of the snow can be avoided.

  According to the snow removal device for roof according to claim 2 of the present invention, the snow mass cut by the shovel part slides down on the frictional resistance reducing sheet, so that the snow mass is smoothly slid down. Further, since the frictional resistance reducing sheet is pulled out from the winding mechanism when the excavator is raised, the snow mass always slides down on the frictional resistance reducing sheet 81, and snow removal can be performed more smoothly. Further, when the shovel part is lowered, the frictional resistance reducing sheet is wound up by the winding mechanism, so that the frictional resistance decreasing sheet hangs down and does not get in the way.

  According to the snow removal device for roof according to claim 3 of the present invention, the frictional resistance reducing sheet drawn out from the reel is stretched over the roller and extends from the roller to the bottom plate. Regardless of this, the frictional resistance reducing sheet extending from the roller to the bottom plate can always be maintained in a straight line at a constant angle. In addition, since the roller is arranged at a position separated from the roof, for example, even when a roof is provided with a fence or the like, the snow mass can be dropped below the fence, so that the snow mass It can prevent damage to the bag caused by falling on the bag.

  According to the snow removal device for roof according to claim 4 of the present invention, the shovel portion removes snow while repeating ascending and pausing, so the water side surface of the snow layer is cut when the shovel portion pauses. As a result, it is possible to slide down for each smaller snow mass as compared with the case where the excavator is continuously raised.

  According to the snow removal device for roof according to claim 5 of the present invention, the first transport means includes a hollow first rail member having a slit formed on the lower surface, and a first movement accommodated and held by the first rail member. And the shovel part is connected to the first moving means via the slit of the first rail member, so that it is possible to prevent snow accumulation in the first rail member, Descent is not hindered. Similarly, the second conveying means includes a hollow second rail member having a slit formed on the lower surface thereof, and second moving means accommodated and held in the second rail member, and the first conveying means is the second rail. Since it is connected to the second moving means via the slit of the member, it is possible to prevent snow accumulation in the second rail member, and the movement of the first conveying means in the horizontal direction is not hindered by snow accumulation. In addition, the excavator section removes snow from the roof by repeating reciprocating movement in the tilt direction and moving in the horizontal direction. Since snow is removed, it is possible to avoid dangers such as damage to equipment caused by removing a large amount of snow at once.

  According to the snow removal device for roof according to claim 6 of the present invention, the roof snow removal device further includes conveying means for conveying the snow mass that has been cut by the shovel and slid down, and the conveying means is installed on the underwater side of the roof. A cover part and an auger housed in the cover part are provided, and the auger is transported in a predetermined direction while cutting a snow mass, so that the snow removed from the roof is automatically transported to a predetermined place regardless of human power. Can do.

1 is an overall perspective view of a snow removal device for roof according to a first embodiment of the present invention. II-II line partial cross section of FIG. FIG. 3 is a partial sectional view taken along line III-III in FIG. 1. The perspective view which shows the shovel part with which the snow removal apparatus for roofs of FIG. 1 is provided. The fragmentary sectional view which shows the shovel part and conveyor mechanism of FIG. The side view of the auger with which the conveyor mechanism of FIG. 5 is provided. The block diagram which shows the electrical structure of the snow removal apparatus for roofs of FIG. FIG. 7 is a schematic plan view showing an operation panel unit of FIG. 6. The flowchart which shows the automatic snow removal control performed in the snow removal apparatus for roofs of FIG. Explanatory drawing which shows operation | movement of a slider and an shovel part. The whole perspective view of the snow removal apparatus for roofs concerning 2nd Embodiment of this invention. The schematic plan view which shows the operation panel part with which the snow removal apparatus for roofs of FIG. 11 is provided.

[First Embodiment]
A roof snow removal device according to a first embodiment of the present invention will be described below with reference to the accompanying drawings. Here, a case where the roof snow removal device is installed in a building having a single-flow roof will be described as an example. Referring to FIG. 1, the illustrated snow removal device 1 for roof includes a snow removal mechanism 2 that removes snow from the roof R, a conveyance mechanism 3 that conveys the snow removed by the snow removal mechanism 2, and a snow removal mechanism 2. And a control unit 4 (see FIG. 7) for controlling the transport mechanism 3.

  The snow removal mechanism 2 includes a support structure 5 installed around the building B, a pair of slider rails (second conveying means) 6 supported by the support structure 5, and a pair of slider rails 6 in the horizontal direction (of the roof R). A slider (first conveying means) 7 supported so as to be movable in the left-right width direction) and a shovel portion 8 supported by the slider 7 so as to be movable in the vertical direction along the inclined surface of the roof R. The structure 5 is provided with a snow amount detection sensor S1. The support structure 5 is composed of a grounded metal frame, and also serves as a building conductor for the lightning protection equipment.

  2 and 3, each slider rail 6 includes a rectangular tube-shaped rail member 61 having rail caps 61a and 61a attached at both ends, and a pair of teeth accommodated and held at both ends of the rail member 61. Pulleys 62, 62, a toothed belt 63 (second moving means) spanned between a pair of toothed pulleys 62, 62, and a rail motor M1 connected to one toothed pulley 62 (see FIG. 7) And comprising. The rail member 61 extends over the entire width direction of the roof R and is fixedly supported by the support mechanism 5 so as to be positioned above the roof surface, and a slit 61b is provided along the longitudinal direction at the center of the lower surface. . A connecting portion 74 of the slider 7 described later is inserted into the slit 61 b, and both ends of the toothed belt 63 are fixed to both ends of the connecting portion 74. The rail motor M1 is composed of a forward / reverse rotation motor. When one of the toothed pulleys 62 is rotated by the rail motor M1, the toothed belt 63 is rotated, and accordingly, the slider 7 is moved in the horizontal direction.

  The slider 7 includes a rectangular tube-shaped rail member 71 having rail caps 71a and 71a attached at both ends, a pair of toothed pulleys 72 and 72 housed and held at both ends of the rail member 71, and a pair of toothed pulleys 72. And a slider motor M2 (see FIG. 7) connected to one of the toothed pulleys 72. A pair of connecting portions 74 are attached to the upper surface of the rail member 71. A lower roller 74a and an upper roller 74b are attached to both surfaces of each connecting portion 74, and the lower roller 74a and the upper roller 74b abut against the inner surface of the rail member 61 of the slider rail 6 to move the slider 7 in the horizontal direction. Rotate with it. With this configuration, the slider 7 can be smoothly moved in the horizontal direction without rattling.

  The rail member 71 extends in the direction of the ridge eaves of the roof R, and the underwater side extends to the lower side of the ridge eaves than the roof R (see FIG. 5). A slit 71b is provided at the center of the lower surface of the rail member 71 along the longitudinal direction. A connecting portion 85 of the shovel portion 8 described later is inserted into the slit 71b, and both ends of the toothed belt 73 are fixed to both ends of the connecting portion 85. The slider motor M2 is composed of a forward / reverse rotation motor. When one of the toothed pulleys 72 is rotated by the slider motor M2, the toothed belt 73 rotates, and the excavator 8 moves up and down along the inclined surface of the roof R accordingly. Move (up / down).

  4 and 5, the excavator 8 cuts the snow layer while ascending along the roof R. The excavator body 80 is configured as a horizontally-oriented square tube as a whole, and the excavator. A frictional resistance reducing sheet 81 fixed to the main body 80 and a winding mechanism 86 for winding the frictional resistance reducing sheet 81 are provided. The excavator body 80 includes a bottom plate 82 extending in parallel with the roof surface, a pair of upright portions 83, 83 standing up from the bottom plate 82, and an upper plate 84 connecting the pair of upright portions 83, 83 to each other. The connecting portion 85 described above is fixed to the upper surface of 80. A lower roller 85a and an upper roller 85b are attached to both surfaces of the connecting portion 85. The lower roller 85a and the upper roller 85b are in contact with the inner surface of the rail member 71 of the slider 7 and rotate as the shovel portion 8 is raised / lowered. To do. With this configuration, the excavator unit 8 can be smoothly raised and lowered without rattling.

  The winding mechanism 86 includes a downward substantially U-shaped support portion 87 fixed to the underwater portion of the slider 7, and a reel 88 and a roller 89 supported by the support portion 87. The frictional resistance reducing sheet 81 is wound around a reel 88, and one end of the frictional resistance reducing sheet 81 is pulled out from the reel 88, is stretched around a roller 89, and is fixed to the upper surface of the bottom plate 82. The roller 89 is installed on the lower side of the roof T of the roof R and on the extended line of the roof surface. Further, the reel 88 is installed so as to be positioned vertically below the roller 89 and closer to the roof R than the roller 89. As a result, the frictional resistance reducing sheet 81 extends linearly along the roof surface from the bottom plate 82 to the roller 89, and extends obliquely downward in a direction approaching the roof R from the roller 89 toward the reel 88.

  The reel 88 is composed of, for example, a spring type reel. When the shovel portion 8 is raised, the frictional resistance reducing sheet 81 is pulled out from the reel 88 against the spring force of the reel 88, and when the shovel portion 8 is lowered, the frictional resistance is reduced. The sheet 81 is wound around the reel 88 by the spring force of the reel 88.

  In such a configuration, when the shovel portion 8 is raised from below (the water side of the roof R) upward (to the water side of the roof R), a snow layer (not shown) that has accumulated snow on the roof R becomes the shovel body 80. The lower surface and the side surface are cut and taken into the excavator main body 80, and the snow layer taken into the excavator main body 80 in this way becomes a snow lump by its own weight and slides down on the frictional resistance reducing sheet 81 and falls. To do. At this time, since the frictional resistance decreasing sheet 81 is positioned above the ridge T so as to straddle the ridge T, the snow mass that has slid down on the frictional resistance decreasing sheet 81 does not fall on the ridge T. , Damage to the kite T caused by a snow mass is prevented.

  With reference to FIG. 1, the transport mechanism 3 includes a conveyor mechanism 9, a chute 10, and a duct 11. The conveyor mechanism 9 guides the snow mass falling from the roof R to the chute 10 while cutting and subdividing it, and includes a cover member 91 installed on the underwater side of the roof R, an auger 92 shown in FIG. And an auger motor M3 coupled to the bearing of the auger 92. The cover member 91 extends over the entire width direction of the roof R and is inclined slightly downward as it approaches the chute 10. Referring also to FIG. 5, the cover member 91 is formed in a cross-sectional substantially fishhook shape having an opening 91 a on the roof R side, and the lower edge 91 b of the cover member 91 defining the opening 91 a is in the vertical direction of the roller 89. Snow that is located on the lower side and near the roof R, and is installed so that the upper edge 91c of the cover member 91 that defines the opening 91a is located on the upper side in the vertical direction of the roller 89, and slides down on the frictional resistance reducing sheet 81 The lump is configured to be received by the cover member 91 through the opening 91a. Further, a discharge port (not shown) is provided in a portion of the cover member 91 on the chute 10 side (left side portion in FIG. 1).

  The auger 92 includes a rotary shaft 92a that is rotatably accommodated in the cover member 91 and extends along the longitudinal direction of the cover member 91, and a spiral blade 92b that is provided in a spiral shape on the peripheral surface of the rotary shaft 92a. When the rotating shaft 92a rotates in a predetermined direction, the spiral advances toward the discharge port side of the cover member 91. The auger 92 is arranged at the bottom of the cover member 91 so as to be positioned on the lower side in the vertical direction of the roller 89 of the winding mechanism 86. As described above, the snow mass that has slipped down from the roof R is placed on the auger 92. Fall.

  The chute 10 guides snow carried by the conveyor mechanism 9 to the duct 11, and extends from the downstream side of the conveyor mechanism 9 (the discharge port side of the cover member 91) to the duct 11 obliquely downward. The duct 11 guides the snow guided by the chute 10 to a predetermined place, such as a rainwater side groove, and extends downward from the tip of the chute 10. Further, a generator (not shown) is accommodated inside the duct 11 and is configured to generate power using snow falling in the duct 11. This generator is configured so that, for example, the impeller is rotated by the falling force of snow to generate electric power and store electric power, and the electric power stored in this way is used for backup of commercial electric power.

  As shown in FIG. 7, various motors M <b> 1 to M <b> 3 are electrically connected to the control unit 4, and the snow amount detection sensor S <b> 1, upper end limiter switch SW <b> 1, lower end limiter switch SW <b> 2, forward end limiter switch SW <b> 3, reverse drive The end limiter switch SW4 and the operation panel unit 12 are electrically connected, and the control unit 4 controls each motor based on electric signals from the snow amount detection sensor S1, the various switches SW1 to SW4, and the operation panel unit 12. M1 to M3 are driven and controlled.

  The snow cover amount detection sensor S1 always detects the snow cover amount on the roof, and transmits a detection signal when a predetermined snow cover amount is detected. The predetermined amount of snow is preferably lower than the height H (see FIG. 5) from the roof surface of the standing portion 83 of the excavator body 80, and is about 2/3 of the height H of the standing portion 83. preferable.

  The lower limiter switch SW1 and the upper limiter switch SW2 are installed on the slider 7. These switches SW1 and SW2 are respectively connected to the lower limiter switch SW1 and the upper limiter switch SW2 when the excavator 8 reaches the predetermined lower end position and upper end position. When it comes into contact, it is turned ON, and an upper end detection signal and a lower end detection signal are transmitted. The forward end limiter switch SW3 and the reverse end limiter switch SW4 are installed on the slider rail 6, and these switches SW3 and SW4 are respectively connected to the forward end limiter switch SW3 and the forward end limiter switch SW3. When the reverse end limiter switch SW4 is touched, it is turned ON, and a forward end detection signal and a reverse end detection signal are transmitted. Here, the direction opposite to the snow transport direction by the conveyor mechanism 9 is the forward direction of the slider 7, and the direction along the snow transport direction is the backward direction of the slider 7. The initial position of the slider 7 is the rearward end position, and the initial position of the excavator 8 is the lower end position. Furthermore, as shown in FIG. 10, a state where the shovel unit 8 and the slider 7 are positioned at their initial positions is a home position of the shovel unit 8. As shown in FIG. 10, by setting the initial position of the shovel portion 8 below the roof R, the snow 7 accumulated on the roof R moves forward without interfering with the shovel portion 8 in the snow removal work described later. be able to.

  Referring to FIG. 8, the operation panel unit 12 is provided with various lamps, various buttons, and various changeover switches, and the various buttons are configured as illuminated push button switches.

  The power lamp R1 indicates ON / OFF of the power supply, and the home position lamp R9 indicates that the excavator unit 8 is located at the home position. The operation mode change-over switch W5 is used to select an automatic operation mode or a manual operation mode. In this embodiment, automatic operation is possible only when the home position lamp R9 is lit (when the excavator 8 is at the home position). It has become. When the automatic operation mode is selected by the operation mode changeover switch W5 and then the start button B10 is pressed, the automatic snow removal control is started. That is, the automatic snow removal control can be started only when the shovel unit 8 is at the home position.

  The automatic snow removal control will be described with reference to the flowchart of FIG. When the automatic snow removal control is started, the control unit 4 first determines whether or not a detection signal is received from the snow amount detection sensor S1 in S1. When the detection signal S1 is not received (S1: NO), the process waits until the detection signal is received. On the other hand, when the detection signal is received (S1: YES), the auger motor M3 is rotated in a predetermined direction in S3 to start driving the auger 92. Next, in S5, the slider motor M2 is rotated by a predetermined amount in a predetermined direction, and the excavator unit 8 is raised by a predetermined amount and stopped. Then, the snow layer is taken into the excavator body 80 while the lower surface and the horizontal side surface are cut by the shovel part 8, and the snow layer taken into the excavator body 80 in this way is temporarily stopped by the shovel part 8. As a result, the wing side surface is cut by its own weight, becomes a snow mass, slides down on the frictional resistance reducing sheet 81, and falls into the cover member 91. The snow lump that has fallen into the cover member 91 in this way is sent to the chute 10 while being cut by the spiral blade 92b of the rotating auger 92, and falls within the duct 11 after sliding down the chute 10 by its own weight.

  Next, in S7, it is determined whether or not the excavator unit 8 has reached the upper end position, that is, whether or not the control unit 4 has received the upper end detection signal. If the upper end position has not been reached (S7: NO). Then, by repeating the operation of S5 until the upper end position is reached, the snow for one line extending in the vertical direction is removed. On the other hand, when the upper end position is reached (S7: YES), it is determined in S9 whether or not the slider 7 is positioned at the forward end position (whether the control unit 4 has received the forward end detection signal). If it has not yet reached the forward end position (S9: NO), in S9, the slider motor M2 is rotated in the reverse direction to lower the shovel unit 8 to its initial position (until the lower end detection signal is received), and to S13. Thus, the pair of rail motors M1, M1 are rotated in a predetermined direction to advance the slider 7 by a predetermined amount. Thereafter, the process returns to S5 and the above operation is repeated to remove the next piece of snow.

  On the other hand, when the shovel part 8 has reached the upper end position (S7: YES) and the slider 7 has also reached the forward end position (S9: YES), the shovel part 8 and the slider 7 are indicated by a two-dot chain line in FIG. It is in the completed position, meaning that the snow removal on the entire roof surface has been completed. Therefore, in this case, in S15, the pair of rail motors M1, M1 and the slider motor M2 are rotated in the opposite directions, and the shovel unit 8 is returned to the home position. Thereafter, after a predetermined time has elapsed, the auger motor M3 is stopped in S17, and the process returns to S1. In this way, by continuing to drive the auger 92 for a predetermined time even after the shovel unit 8 is returned to the home position, the driving of the auger 92 is stopped before the snow transport by the auger 92 is completed. To prevent snow from remaining on the ground.

  As described above, in the snow removal device 1 for roof according to the present embodiment, the snow removal of the roof R can be performed automatically regardless of human power, and the removed snow can be automatically conveyed to a predetermined position. Further, by removing snow while moving the excavator 8 and the slider 7 sequentially, snow is removed in units of relatively small snow blocks, so that the snow accumulated on the entire surface of the roof R slides down like an avalanche. There is nothing. That is, the width dimension of the shovel part 8 is set to be smaller than the width dimension of the target roof R, and snow is removed while dividing (cutting) the snow layer of the width of the shovel part 8 into a plurality of times. Therefore, the conveyor mechanism 9 is prevented from being damaged or clogged due to a large amount of snow falling at once.

  Furthermore, since the downstream side in the transport direction by the auger 92 is set as the initial position of the slider 7, since snow is sequentially carried out from the downstream side, compared to the case where the snow is started from the upstream side in the transport direction by the auger 92, Snow can be smoothly conveyed by the auger 92. Further, since the snow mass falling into the cover member 91 is cut by the auger 92 and conveyed to the chute 10, the snow smoothly slides down to the duct 11 in the chute 10.

  Returning to FIG. 8, when the manual operation mode is selected by the operation mode changeover switch W5, the forward / reverse control of the slider 7, the up / down control of the shovel unit 8, and the rotation control of the auger 92 can be manually performed. This manual operation mode is selected, for example, when the roof snow removal device 1 is inspected and maintained.

  More specifically, in the manual operation mode, either the continuous mode or the inching mode can be selected using the manual mode switch W18, and the traveling direction of the slider 7 and the shovel portion can be selected using the switches W22, W28, and W34. 8 traveling directions and the rotating direction of the auger 92 can be selected.

  For example, when the continuous mode is selected, the slider 7 starts to advance when the advance switch is selected by the selection switch W22 and the on button B23 is pressed, and then stops when the off button B24 is pressed. On the other hand, when the reverse switch is selected with the selection switch W22 and the on button B23 is pressed, the slider 7 starts the reverse movement, and then stops when the off button B24 is pressed. In addition, when the inching mode is selected, if the forward switch is selected by the selection switch W22, the slider 7 moves forward only while the on button B23 is pressed, and if the reverse switch is selected by the selection switch W22, the on button B23 is pressed. The slider 7 moves backward only during that time.

  Similarly, when the continuous mode is selected, when the selection switch W28 is selected to raise and the on button B29 is pressed, the shovel unit 8 starts to rise, and when the off button B30 is subsequently pressed, the excavator unit 8 stops. On the other hand, when the lowering is selected by the selection switch W28 and the on button B29 is pressed, the shovel unit 8 starts to descend, and then stops when the off button B30 is pressed. In addition, when the inching mode is selected, when the forward switch is selected by the selection switch W28, the excavator unit 8 is raised only while the on button B29 is being pressed. When the selection switch W28 is selected to be lowered, the on button B29 is pushed. The excavator 8 moves down only while it is.

  Further, when the continuous mode is selected, when the forward switch is selected by the changeover switch W34 and the on button B35 is pressed, the auger 92 rotates in the forward direction (predetermined direction), and then stops when the off button B36 is pressed. . On the other hand, when reverse switch is selected by the changeover switch W34 and the on button B35 is pressed, the auger 92 rotates in the reverse direction, and when the off button B36 is pressed thereafter, the auger 92 stops. In addition, when the inching mode is selected and the forward switch is selected by the changeover switch W34, the auger 92 rotates in the forward direction (predetermined direction) only while the on button B35 is being pressed. The auger 92 rotates in the opposite direction only while being pushed.

  The initial position lamp R19 indicates that the slider 7 is positioned at the initial position, and the initial position lamp R25 indicates that the excavator unit 8 is positioned at the initial position. The conveyor lamp R15 is lit while the auger 92 is activated. The generator switch W8 switches the generator on / off.

  When the emergency stop button B12 is pressed, the power is turned off and all operations are stopped. In addition to the operation panel unit 12 shown in FIG. 8, it is preferable to include a remote controller (not shown) having at least an emergency stop button. As with the emergency stop button B12, pressing the emergency stop button on the remote controller turns off the power and stops all operations, so workers can carry the remote controller when carrying out inspection and maintenance on the roof. The safety of employees can be ensured.

  As described above, according to the snow removal device 1 for roof according to the present embodiment, the shovel portion 8 is configured to be connected to the toothed belt 73 via the slit 71a provided on the lower surface of the rail member 71. The snow does not accumulate inside the rail member 71, and the movement of the shovel member 8 is not hindered by the snow accumulation. Similarly, since the slider 7 is configured to be connected to the toothed belt 63 via the slit 61a provided on the lower surface of the rail member 61, the snow does not accumulate inside the rail member 61, and the slider accumulates due to the snow accumulation. The movement of 7 is not hindered.

  Further, the excavator 8 is provided with a frictional resistance reducing sheet 81, and the snow mass cut by the excavator body 80 is configured to slide down on the frictional resistance reducing sheet 81. Even if there is, it can slide off the snow mass smoothly. Further, since the frictional resistance reducing sheet 81 is wound around the reel 88 as the shovel portion 8 is lowered, the problem that the frictional resistance reducing sheet 81 is wound around the rotating auger 82 can be solved. Further, since the frictional resistance reducing sheet 81 is pulled out from the reel 88 as the excavator 8 is raised, the snow mass always slides down on the frictional resistance reducing sheet 81, and snow removal is performed smoothly. The frictional resistance reducing sheet 81 is not limited to any material as long as it is made of a material with which snow is slippery, such as vinyl or nylon.

  Further, since the cover member 91 is formed in a substantially fishhook shape having an opening 91a on the roof R side, it is possible to prevent a large amount of snow falling during the stop of the auger 92 from accumulating inside the cover member 91.

[Second Embodiment]
Next, a snow removal device for roofs according to a second embodiment of the present invention will be described. In the above embodiment, the case where the roof snow removal device 1 is installed in the building B having the single-flow roof R has been described as an example, but here the roof snow removal device is a building 100B having a gable roof 100R as shown in FIG. The case where it is installed in is explained as an example. In the following description, members that are substantially the same as those in the above embodiment are given the same reference numerals, and detailed descriptions thereof are omitted.

  Referring to FIG. 11, the illustrated snow removal device 101 for roof includes a pair of snow removal units 1A and 1A. These snow removal units 1A are provided on two inclined surfaces of the roof 100R, respectively, and each include the snow removal mechanism 2 and the transport mechanism 3 described above. However, a single duct 11 is commonly used for both snow removal units 1A and 1A, and the snow removal units 1A and 1A are installed so as to serve as a control for the ridge of the roof 100R. In such a configuration, the snow mass removed from each inclined surface of the roof 100 </ b> R is conveyed toward the chute 10 while being cut by the rotating auger 92, and falls in the duct 11 after sliding down the chute 10. Therefore, also in this embodiment, the same operation and effect as the first embodiment described above can be obtained.

  Referring to FIG. 12, an operation panel unit 112 included in the snow removal device 101 for roof includes a general panel 113 and a pair of operation panels 114 and 114 corresponding to each of the pair of snow removal units 1A and 1A (one in FIG. 12). (Only the operation panel 114 (first operation panel) is shown). The all-home position lamp R109 indicates that all the shovel units 8 of each snow removal unit 1A are located at the home position. The operation mode change-over switch W105 switches between the fully automatic operation mode, the single automatic operation mode, and the manual operation mode. In this embodiment, when all the home position lamps R109 are lit (all excavator units 8 are set to the home). Only when it is in position) can be switched to the fully automatic operation mode. When the fully automatic operation mode is selected by the operation mode changeover switch W105 and then the start button B10 is pressed, the above-described automatic snow removal control is performed in the snow removal units 1A and 1A.

  When the manual operation mode is selected by the operation mode switch W105, each snow removal unit 1A can be manually operated using the operation panel 114 in the same manner as described above. Further, when the single automatic operation mode is selected by the operation mode changeover switch W105, one of the snow removal units 1A can be automatically operated (single automatic operation), while the other snow removal unit 1A can be manually operated. In addition to the various switches described above, each operation panel 114 is provided with a home position lamp R140 indicating that the corresponding excavator unit 8 is located at the home position. While the home position lamp 140 is lit, a start button B141 is provided. By pressing, automatic operation (single automatic operation) of the corresponding snow removal unit 1A is started.

  As mentioned above, although the snow removal apparatus for roof which concerns on embodiment of this invention was demonstrated with reference to attached drawing, this invention is not limited to this embodiment, Various deformation | transformation thru | or corrections do not deviate from the scope of the present invention. Is possible.

1,101 Snow removal device for roof 1A Snow removal unit 2 Snow removal mechanism 3 Transport mechanism 4 Control unit 6 Slider rail (second transport means)
7 Slider (first transport means)
8 Excavator part 81 Friction resistance decreasing sheet 86 Winding mechanism 88 Reel 91 Ridge part 92 Auger

The snow removal device for roof according to claim 1 of the present invention includes an excavator part that can be moved up and down along the inclination direction of the roof of the building, and a first transport unit that reciprocates the excavator part along the inclination direction, The excavator portion includes a bottom plate along the surface of the roof, an upright portion standing up from the bottom plate, a friction resistance reducing sheet having one end fixed to the bottom plate, and a coil for winding the friction resistance reducing sheet. A winding mechanism, and when the excavator part rises in the inclined direction, the snow accumulated on the roof is cut and slid down to remove the snow, and when the excavator part rises, the frictional resistance reducing sheet Is pulled out from the winding mechanism, and when the shovel part descends, the frictional resistance reducing sheet is taken up by the winding mechanism, and the snow mass cut by the shovel part is the frictional resistance reducing sheet Characterized by that sliding down the.

In the snow removal device for roof according to claim 2 of the present invention, the first transport means includes a first rail member extending along the inclined direction, and the winding mechanism is fixed to the first rail member. It is characterized by being.

The snow removal device for roof according to claim 4 of the present invention further includes a control unit that controls the first transport unit, and the control unit includes the first transport unit until the shovel unit reaches the upper end position. It is characterized by removing snow while dividing the snow layer of a line corresponding to the width of the excavator into a plurality of times by repeatedly raising and temporarily stopping the shovel portion .

Moreover, since the snow mass cut | disconnected by the shovel part slides down on a frictional resistance reduction sheet | seat, a snow mass slides smoothly. Further, when the excavator is raised, the frictional resistance reducing sheet is pulled out from the winding mechanism, so that the snow mass always slides down on the frictional resistance reducing sheet , and snow removal can be performed more smoothly. Further, when the shovel part is lowered, the frictional resistance reducing sheet is wound up by the winding mechanism, so that the frictional resistance decreasing sheet hangs down and does not get in the way.

The snow removal device for roof according to claim 1 of the present invention includes an excavator part that can be moved up and down along the inclination direction of the roof of the building, and a first transport unit that reciprocates the excavator part along the inclination direction, The excavator portion includes a bottom plate along the surface of the roof, an upright portion standing up from the bottom plate, a friction resistance reducing sheet having one end fixed to the bottom plate, and a coil for winding the friction resistance reducing sheet. A winding mechanism, and when the excavator part rises along the inclination direction, the snow piled up on the roof is cut and slid down to remove the snow, and the first conveying means is arranged in the inclination direction. comprising a first rail member extending along the winding mechanism is fixed to the first rail member, said frictional resistance reducing sheet and the shovel portion rises is drawn from the winding mechanism, said shovel section The frictional resistance reduction sheets that later is wound on the winding mechanism, snow mass cut by the excavator unit is characterized by sliding down the frictional resistance decreases above the seat.

In the snow removal device for roof according to claim 2 of the present invention, the winding mechanism includes a support portion fixed to the first rail member, and a roller supported by the support portion at a position separated from the roof. And a reel that is supported by the support portion and winds up the frictional resistance reducing sheet, wherein the reel is positioned below the roller, and the frictional resistance decreasing sheet that is pulled out from the reel is the reel It extends over a roller and extends linearly from the roller to the bottom plate.

The snow removal device for roof according to claim 3 of the present invention further includes a control unit that controls the first transport unit, and the control unit includes the first transport unit until the shovel unit reaches the upper end position. It is characterized by removing snow while dividing the snow layer of a line corresponding to the width of the excavator into a plurality of times by repeatedly raising and temporarily stopping the shovel portion.

Roof snow removal device according to claim 4 of the present invention further comprises a second conveying means for reciprocating in the horizontal direction said first conveying means with said shovel section, said first conveying means, said first A first moving means that is accommodated and held in one rail member and reciprocates in the tilt direction, wherein the first rail member is hollow, and a slit is formed on a lower surface of the first rail member; An excavator portion is connected to the first moving means via the slit of the first rail member, and the second conveying means includes a hollow second rail member formed with a slit on the lower surface and extending along the horizontal direction, Second moving means accommodated and held in the second rail member and reciprocating in the horizontal direction, and the first conveying means is connected to the second moving means via the slit of the second rail member. ,Previous Shovel unit may continue to snow snow of the roof by repeating the movement and to reciprocate in the horizontal direction to the inclination direction.

The roof snow removal device according to claim 5 of the present invention further includes a transport means for transporting the snow block which has been cut by the excavator and slid down, and the transport means is installed on the underwater side of the roof. And the auger housed in the cover portion, the snow mass cut by the excavator portion and sliding down falls into the cover portion, and the auger conveys the snow mass in a predetermined direction while breaking down the snow mass. It is characterized by that.

According to the snow removal device for roof according to claim 2 of the present invention, the frictional resistance reducing sheet drawn out from the reel is stretched over the roller and extends from the roller to the bottom plate. Regardless of this, the frictional resistance reducing sheet extending from the roller to the bottom plate can always be maintained in a straight line at a constant angle. In addition, since the roller is arranged at a position separated from the roof, for example, even when a roof is provided with a fence or the like, the snow mass can be dropped below the fence, so that the snow mass It can prevent damage to the bag caused by falling on the bag.

According to the snow removal device for roof according to claim 3 of the present invention, the shovel portion removes snow while repeating ascending and pausing, so that the water side surface of the snow layer is cut when the shovel portion pauses. As a result, it is possible to slide down for each smaller snow mass as compared with the case where the excavator is continuously raised.

According to the roof and snow according to claim 4 of the present invention, the first transport means further comprises a first moving means which is accommodated and held in the first rail member, the shovel portion a slit of the first rail member Therefore, it is possible to prevent snow accumulation in the first rail member, and the rising and lowering of the shovel portion is not hindered by the snow accumulation. Similarly, the second conveying means includes a hollow second rail member having a slit formed on the lower surface thereof, and second moving means accommodated and held in the second rail member, and the first conveying means is the second rail. Since it is connected to the second moving means via the slit of the member, it is possible to prevent snow accumulation in the second rail member, and the movement of the first conveying means in the horizontal direction is not hindered by snow accumulation. In addition, the excavator section removes snow from the roof by repeating reciprocating movement in the tilt direction and moving in the horizontal direction. Since snow is removed, it is possible to avoid dangers such as damage to equipment caused by removing a large amount of snow at once.

According to the snow removal device for a roof according to claim 5 of the present invention, the roof snow removal device further includes conveying means for conveying a snow mass cut by the excavator and slid down, and the conveying means is installed on the underwater side of the roof. A cover part and an auger housed in the cover part are provided, and the auger is transported in a predetermined direction while cutting a snow mass, so that the snow removed from the roof is automatically transported to a predetermined place regardless of human power. Can do.

Claims (6)

An excavator that can be moved up and down along the inclination direction of the roof of the building;
First exchanging means for reciprocating the excavator part along the tilt direction,
The excavator part includes a bottom plate along the surface of the roof and an upright part standing up from the bottom plate, and the excavator part rises along the inclined direction to cut snow accumulated on the roof. A snow removal device for roofs that slides down and removes snow. The excavator portion further includes a frictional resistance reducing sheet having one end fixed to the bottom plate, and a winding mechanism for winding the frictional resistance reducing sheet,
The first transport means includes a first rail member extending along the tilt direction,
The winding mechanism is fixed to the first rail member, and when the shovel part is raised, the frictional resistance reducing sheet is pulled out from the winding mechanism, and when the shovel part is lowered, the frictional resistance reducing sheet is moved to the winding mechanism. The snow removal device for a roof according to claim 1, wherein the snow mass wound around and cut by the shovel part slides down on the frictional resistance reducing sheet.   The winding mechanism includes a support portion fixed to the first rail member, a roller supported by the support portion at a position spaced apart from the roof, and the friction resistance reducing sheet supported by the support portion. A reel for winding, and the reel is positioned below the roller, and the frictional resistance reducing sheet pulled out from the reel is stretched over the roller and linearly extends from the roller to the bottom plate. The roof snow removal device according to claim 2, which extends.   The snow removal device for roof according to any one of claims 1 to 3, wherein the shovel part is configured to remove snow while repeating ascent and pause. A second conveying means for reciprocally moving the first conveying means in the horizontal direction together with the shovel portion;
The first conveying means includes a hollow first rail member having a slit formed on a lower surface and extending along the tilt direction, and a first moving means that is accommodated and held in the first rail member and reciprocates in the tilt direction. The shovel part is connected to the first moving means via the slit of the first rail member,
The second conveying means includes: a hollow second rail member having a slit formed in the lower surface and extending along the horizontal direction; and a second moving means that is accommodated and held in the second rail member and reciprocates in the horizontal direction. The first conveying means is connected to the second moving means via the slit of the second rail member,
The snow removal device for roof according to claim 1, wherein the excavator part removes snow from the roof by repeating reciprocation in the tilt direction and movement in the horizontal direction. It further comprises transport means for transporting the snow mass that has been cut and slid by the excavator section, and the transport means comprises a cover part installed on the underwater side of the roof, and an auger accommodated in the cover part. The snow mass that has been cut and slid by the excavator portion falls into the cover portion, and the auger conveys the snow mass in a predetermined direction while breaking the snow mass. Snow removal equipment for roofs.

Images