JP2012172335A - Snow removal apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a snow removal apparatus capable of properly performing snow removal irrespective of a snow accumulation amount.SOLUTION: A snow removal blade 1 spirally wound around a rotational shaft 2 is rotated by a snow removal motor 4 while removing accumulated snow on a roof, and the snow removal motor 4 is freely reciprocated by a movement motor 3 between one end and the other end of an apparatus base in the longitudinal direction.

Description

  The present invention relates to a snow removal device for removing snow that has accumulated on a roof or the like.

  As a conventional snow removal device, two rails are attached to the roof ridge, one end is attached to the machine body that is movably mounted on this rail, and the pair of screws protrudes so that the other end extends to the eaves. A snow removal device is disclosed that removes snow by scraping the snow on the roof from the top to the bottom by rotating the screw (see, for example, Patent Document 1).

  As another conventional snow removal device, a long brush placed on the roof parallel to the roof ridge is moved from the ridge to the eaves to sweep the snow on the roof with a long brush. Like the long brush snow removal device that removes snow and the windshield snow wiped with a wiper, the other end of the long wiper with one end rotatably attached to the roof eave is stretched toward the building. A long wiper snow removal device is also disclosed that removes snow on the roof by reciprocating the long wiper in an arc shape so as to sweep over the roof with one end of the long wiper as an axis (for example, patents) Reference 2).

JP-A 62-45857 JP 2007-247370 A

  As described above, the conventional snow removal device that removes snow by scraping the snow on the roof from the top to the bottom by rotating the screw attached to extend from the rail attached to the roof ridge to the eave extended to the eave. In addition to the problem that the free end of the screw floats from the snow on the roof and the snow cannot be removed sufficiently, there is a problem that the structure becomes complicated, such as screw movement, screw rotation connection, and disconnection.

  In addition, the conventional long brush snow removal device that removes snow by sweeping the snow on the roof with a long brush and the conventional long brush that removes snow on the roof by reciprocating a long wiper in an arc shape on the roof The wiper snow removal device has a problem that snow removal cannot be performed sufficiently when the amount of snow accumulation increases.

  The present invention has been made in view of the above, and an object of the present invention is to provide a snow removal device capable of accurately removing snow regardless of the amount of snow.

  In order to achieve the above object, a snow removal device according to claim 1 includes first and second device bases installed on the roof in parallel at a distance, and a longitudinal slide on the first device base. A snow removal motor that is freely attached, a rotation shaft that has one end attached to a drive shaft of the snow removal motor, the other end extends to the second apparatus base, and rotates by rotation of the snow removal motor; A bearing portion that is slidably mounted in the longitudinal direction on the apparatus base, and that the other end of the rotating shaft is rotatably mounted, and a spiral shape around the rotating shaft along the longitudinal direction and at an angle with respect to the rotating shaft A snow removal blade attached to the motor, a movement motor for reciprocally moving the snow removal motor between one end and the other end in the longitudinal direction of the first apparatus base, and interlocking with the movement of the snow removal motor by the movement motor The second bearing part And summarized in that having an interlocking moving means for moving between a longitudinal end and the other end of the table.

  In the snow removal device according to claim 1, while removing the snow on the roof while rotating the snow removal blade spirally attached around the rotation shaft with the snow removal motor, the snow removal motor is connected to one end in the longitudinal direction of the device base. Since the snow removal blade does not float even if there is a lot of snow, the snow removal blade can be accurately removed and the snow removal blade can be rotated and moved reliably. It can be carried out.

  The snow removal device according to claim 2 includes third and fourth device bases that connect one end and the other end of the first and second device bases, respectively, and lower surfaces of the first to fourth device bases. And the first to fourth heaters for melting the snow below the lower surface.

  In the snow removal device according to claim 2, since the first to fourth heaters are respectively provided on the lower surfaces of the first to fourth device bases, and the snow below the lower surface is melted by the heaters, a large amount of snow is accumulated on the roof. Even if there is snow, it is possible to accurately remove snow while melting this snow.

  According to the present invention, the snow removal blade mounted in a spiral shape around the rotation shaft is rotated by the snow removal motor while removing snow on the roof, and the snow removal motor is connected to one end and the other end in the longitudinal direction of the apparatus base. Since the snow removal blade does not float even if there is a lot of snow, the snow removal blade can be properly removed and the snow removal blade can be rotated and moved reliably. it can.

  Further, according to the present invention, the first to fourth heaters are provided on the lower surfaces of the first to fourth device bases, respectively, and the snow below the lower surface is melted by the heaters, so that a lot of snow is accumulated on the roof. Even if there is, it is possible to accurately remove snow while melting this snow.

1 is a perspective view showing an overall configuration of a snow removal device according to an embodiment of the present invention. It is a perspective view which shows the state which installed the snow removal apparatus shown in FIG. 1 on a roof. FIG. 2 is an enlarged perspective view showing a snow removal motor and box used in the snow removal device shown in FIG. 1 and the surrounding structure. It is an expansion perspective view which shows the gearwheel and 1st movement chain which are used for the snow removal apparatus shown in FIG. FIG. 2 is a circuit diagram of a moving motor, a main switch, and a sub switch used in the snow removal device shown in FIG. 1. It is a perspective view which shows the detailed structure of the snow removal blade used for the snow removal apparatus shown in FIG. It is the perspective view which installed the snow removal apparatus shown in FIG. 1 on the roof which snowed. It is the perspective view which rotated the snow removal apparatus shown in FIG. 1 90 degree | times, and was installed on the roof.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

  FIG. 1 is a perspective view showing the overall configuration of a snow removal device according to an embodiment of the present invention. As shown in FIG. 2, the snow removal device 31 shown in FIG. 2 is installed on the roof 29 and is used for removing snow on the roof. By having a snow removal blade 1 spirally attached around an elongated rod-like rotary shaft 2 shown to cross the direction, the snow removal blade 1 is rotated together with the rotary shaft 2 as indicated by an arrow 100. It removes snow on the roof.

  Further, the snow removal device 31 shown in FIG. 1 includes first and second long plate-like device bases 20a and 20b which are installed on the roof in parallel at a distance, and the first and second device bases 20a. , 20b and third and fourth long plate-like device bases 20c and 20d for connecting the other ends to each other, and the four device bases 20a, 20b, 20c and 20d are as described above. A rectangular frame is formed by connecting the ends. Various components of the snow removal device 31 are mounted on the rectangular frame.

  As described above, the heaters 23a, 23b, 23c, and 23d of about 30 W, for example, are attached to the lower surfaces of the four apparatus bases 20a, 20b, 20c, and 20d constituting the rectangular frame body. When the snow removal device 31 is installed on the roof as shown in FIG. 2, the snow on the roof is melted by the heat of the heaters 23a, 23b, 23c, and 23d. FIG. 7 is a view showing the melting state of the snow cover 30 on the roof 29 by the heat of the heaters 23a, 23b, 23c, and 23d, and the snow cover around the rectangular frame is melted. I understand. That is, when the snow removal device 31 is attached to a roof already covered with snow, the snow removal device 31 is installed on the snow covered roof as shown in FIG. 7, and power is supplied to the heaters 23a, 23b, 23c, and 23d. When the heater is heated, the snow is gradually melted by the heat of the heater, and the snow removal device 31 gradually sinks. At this time, when the snow removal motor 4 is driven to rotate and the snow removal blade 1 is rotated, the snow on the roof Snow can be removed efficiently. In FIG. 1, only the two heaters 23a and 23c attached to the lower surfaces of the first device base 20a and the third device base 20c are visible among the four heaters 23a, 23b, 23c and 23d. However, heaters 23b and 23d are similarly attached to the lower surfaces of the second and fourth device bases 20b and 20d.

  As shown in FIG. 1, one end of the rotating shaft 2 to which the snow removal blade 1 is attached is slidable in the longitudinal direction of the first device table 20a as indicated by an arrow 101 on the first device table 20a. It is attached to the drive shaft of the attached snow removal motor 4 and is rotationally driven by the rotation of the snow removal motor 4. Further, the other end of the rotating shaft 2 extends to the second device table 20b so that it can slide on the second device table 20b in the longitudinal direction of the second device table 20b as indicated by an arrow 102. The bearing portion 10 is attached so as to be freely rotatable.

  The bearing portion 10 is erected on a bearing base 11, and a bearing bottom plate 13 is provided below the bearing base 11 via a bearing spacer 12. A space between the bearing bottom plate 13 and the bearing base 11 is provided. A plurality of bearing wheels 14 are provided on the lower side of the bearing bottom plate 13. As indicated by an arrow 102, the bearing portion 10 is guided along the guides 19b by the bearing wheels 14. Furthermore, it can slide in the longitudinal direction of the second device base 20b.

  Further, the snow removal motor 4 slidably mounted on the first device base 20a is housed in a box 15 assembled in a rectangular shape with a plate as shown in an enlarged view in FIG. 15, a box bottom plate 17 is provided via a box spacer 16, a guide 19 a is provided in a space between the box bottom plate 17 and the lower portion of the box 15, and below the box bottom plate 17, A plurality of box wheels 18 similar to the bearing wheels 14 are provided. The snow removal motor 4 is guided along the guides 19 a together with the boxes 15 by the box wheels 18, as indicated by an arrow 101. It can be slid in the longitudinal direction.

  Returning to FIG. 1, the upper surface of the box 15 housing the snow removal motor 4 and the upper end of the bearing portion 10 are integrally connected by a long bearing fixing plate 9, whereby the snow removal motor 4 described above. The sliding motion indicated by the arrow 101 and the sliding motion indicated by the arrow 102 of the bearing portion 10 are interlocked.

  Further, on the first device table 20a, a first moving chain 7a is provided with a rotor 8a provided at one end of the first device table 20a and a gear 5a provided at the other end of the first device table 20a. The middle part of the first moving chain 7a is fixedly attached to the chain fixing part 34a at the bottom of the box 15. Therefore, if the first moving chain 7a operates in a loop between the rotor 8a and the gear 5a, that is, moves, the box 15 and eventually the snow removal motor 4 also move according to the movement of the first moving chain 7a. It can move as shown by arrow 101. The first moving chain 7a is engaged with a gear 5a as shown in an enlarged view in FIG. 4, and a connecting shaft 6 described below is attached to the gear 5a.

  As shown in FIG. 1, the connecting shaft 6 is provided in parallel along the third device base 20c, one end connected to the drive shaft of the moving motor 3, and the other end other than the second device base 20b. It extends to the end and is fixedly connected to a gear 5 b provided at the other end, and the rotation of the moving motor 3 is transmitted to the gear 5 b via the connecting shaft 6.

  One end of a second moving chain 7b similar to the first moving chain 7a is hung on the gear 5b. The other end of the second moving chain 7b is hung on the rotor 8b provided at one end of the second device base 20b, and the second moving chain 7b is hung in a loop between the rotor 8b and the gear 5b. However, the middle of the second moving chain 7b is fixedly attached to the chain fixing portion 34b at the lower part of the bearing base 11. Therefore, if the second moving chain 7b operates in a loop between the rotor 8b and the gear 5b, that is, moves, the bearing portion 10 is indicated by an arrow 102 in accordance with the movement of the second moving chain 7b. Can be moved to.

  More specifically, when the moving motor 3 rotates, this rotation is transmitted to the gear 5a and the gear 5b via the connecting shaft 6, and the gear 5a and the gear 5b rotate at the same time, thereby the first moving chain 7a and the first moving chain 7a. The two moving chains 7b move simultaneously as indicated by arrows 101 and 102, respectively. With this movement, the box 15 and, consequently, the snow removal motor 4 and the bearing portion 10 are similarly shown as arrows 101 and 102 in the first and first directions. It moves simultaneously along the two device stands 20a and 20b. Since the box 15 and the bearing portion 10 are integrally connected by the bearing fixing plate 9, the above-described movement of the snow removal motor 4 and the bearing portion 10 is performed in an integrated manner. That is, when the moving motor 3 rotates, the snow removal motor 4 and the bearing portion 10 connected by the bearing fixing plate 9 are the longitudinal directions of the first and second device bases 20a and 20b as indicated by arrows 101 and 102. It will move simultaneously along the direction.

  Further, a main switch 25 is attached near the other end of the first device base 20a, and a sub switch 26 is attached near one end of the first device base 20a. When the box 15 moves along the first device base 20a as indicated by the arrow 101, the sub switch 26 and the main switch pressing protrusions 32 and the sub switch pressing depression respectively attached to both side surfaces of the box 15 are provided. The projections 33 are in contact with each other to operate. By the switching operation of the main switch 25 and the sub switch 26, the rotation direction of the moving motor 3 is reversed, and the movement of the snow removal motor 4 and the bearing portion 10 in the directions of arrows 101 and 102 is reversed. .

  In FIG. 1, a roof mounting member 28 whose tip is bent in a “<” shape is attached to one end of each of the first and second device bases 20 a and 20 b. As shown in FIG. 2, the snow removal device 31 can be mounted on the roof 29 by hooking it on the ridge of the roof 29.

  FIG. 5 is a circuit diagram of an electric circuit that drives the moving motor 3. As shown in the figure, the moving motor 3 has three AC inputs 3a, 3b, and 3c. One input 22a of the moving motor AC input 22 is directly connected to the AC input 3c, and the other two The other input 22b of the AC input 22 for the moving motor is connected to the AC inputs 3a and 3b via the main switch 25 and the sub switch 26.

  Then, by the switching operation of the main switch 25 and the sub switch 26, the other input 22b of the AC input 22 for the moving motor becomes one of the other two AC inputs 3a and 3b via the main switch 25 and the sub switch 26. When connected to the AC input 3a, the moving motor 3 rotates forward to move the snow removal motor 4 and the bearing unit 10 in the first direction toward the other ends of the first and second device bases 20a and 20b, respectively. On the contrary, when the other input 22b of the AC input 22 for the moving motor is connected to the other AC input 3b via the main switch 25 and the sub switch 26, the moving motor 3 rotates in the reverse direction, and the snow removal motor 4 and the bearing The part 10 is moved in a second direction toward one end of the first and second device bases 20a and 20b, respectively.

  The switching operation of the main switch 25 and the sub switch 26 is performed when the main switch pressing protrusion 32 and the sub switch pressing protrusion 33 contact the main switch 25 and the sub switch 26 as described above. That is, as described above, the box 15 housing the snow removal motor 4 moves along the first device base 20a toward one end of the first device base 20a, and the sub switch pressing protrusion 33 of the box 15 is moved. When the slave switch 26 is switched in contact with the slave switch 26, the moving motor 3 rotates forward to move the box 15 toward the other end of the first device base 20a, and the box 15 is moved to the first device. When the main switch pressing protrusion 32 of the box 15 is brought into contact with the main switch 25 and the main switch 25 is switched by moving toward the other end of the table 20a, the moving motor 3 rotates in the reverse direction, and the box 15 is moved to the first state. Move toward one end of the device base 20a.

  In FIG. 1, a moving motor AC input 22, a connecting line from the moving motor AC input 22 to the moving motor 3, a connecting line 27 between the main switch 25 and the sub switch 26 are illustrated, and snow removal is performed. A snow removal motor AC input 21 for the motor 4 and a heater AC input 24 for the heaters 23a, 23b, 23c, 23d are also shown.

  In order to remove the snow on the roof using the snow removal device 31 configured as described above, the snow removal device 31 is installed on the roof as shown in FIG. In this installation, the snow removal device 31 is installed on the roof so that the two roof mounting members 28 attached to one end of the first and second device bases 20a and 20b are hooked on the roof ridge. The size of the snow removal device 31 is, for example, about 3 m in width in FIG. 2 and about 4 to 5 m in the vertical direction.

  After the installation as described above, AC 100 V is supplied to the snow removal motor 4 from the AC input 21 for the moving motor, and the snow removal motor 4 is rotationally driven. The snow removal blade 1 attached to the vehicle is driven to rotate, and the snow removal on the roof is removed by the rotation of the snow removal blade 1. Further, with the rotation of the snow removal blade 1, AC 100 V is supplied to the moving motor 3 from the moving motor AC input 22 to rotate the moving motor 3, and the first and second moving chains 7 a are driven by the rotation of the moving motor 3. 7b, and the rotary shaft 2 and the snow removal blade 1 connected between the snow removal motor 4 and the bearing portion 10 by the operation of the first and second moving chains 7a and 7b are moved to arrows 101 and 102, respectively. As shown, it is reciprocated along the direction of the slope of the roof to remove snow on the entire roof.

  FIG. 6 is an enlarged view showing the structure of the snow removal blade 1 in detail. As shown in FIG. 1, the snow removal blade 1 as a whole is helically attached around the rotary shaft 2 along the longitudinal direction and at an angle with respect to the rotary shaft 2. As shown, a plurality of sub-blades 1a folded in a triangular shape are arranged in a spiral shape. Each of the sub-blades 1a is bent, for example, by bending the center of a rectangular plate having a width of about 3 cm and a length of about 20 cm at an angle of 30 degrees, and by bending a screw allowance at both ends by 2 cm. The rotary shaft 2 is fixed with screws.

  In addition, when the diameter of the rotating shaft 2 is 4.5 cm, for example, and the above-described sub blades 1a are arranged in a spiral around the rotating shaft 2, for example, seven sub blades 1a are used in one rotation of the rotating shaft 2. In this way, the spiral structure is shifted by about 20 cm in the axial direction of the rotary shaft 2 in one rotation of the rotary shaft 2. If the entire length of the rotating shaft 2 to which the snow removal blade 1 is attached is 3 m, for example, the sub blades 1a are arranged spirally on the rotating shaft 2 15 times, and the number of sub blades 1a Will be 105 in total.

  The operation of removing snow with the snow removal blade 1 composed of a plurality of sub blades 1a as described above is to scrape off the snow on the roof at the triangular portion of each sub blade 1a and to remove the scraped snow obliquely forward And the next sub-blade 1a repeats the operation of flying the previous snow further forward to perform snow removal. Note that the present invention is not limited to the snow removal blade 1 as shown in FIG. 6 described above, but has other various shapes, for example, a screw propeller of a ship that is spirally continued like a screw thread. But that's fine.

  FIG. 7 is a diagram in which the snow removal device 31 configured as shown in FIG. 1 is installed on a roof that has already accumulated snow. When the snow removal device 31 is installed after snow has been accumulated in this manner, the heater AC input 24 is applied to the heaters 23a, 23b, 23c, and 23d attached to the lower surfaces of the device bases 20a, 20b, 20c, and 20d of the snow removal device 31. AC100V is supplied and heated, and snow removal is performed by rotating the snow removal blade 1 as described above while melting the snow accumulation 30 on the roof 29 with the heat of the heated heaters 23a, 23b, 23c, and 23d.

  FIG. 8 is a view in which the snow removal device 31 configured as shown in FIG. 1 is rotated 90 degrees from the position shown in FIGS. 2 and 7 and installed on the roof. It is possible to remove snow on the roof 29 in the same way even if it is rotated 90 degrees in this way, but in this case, the roof mounting member 28 is attached to one end of the device bases 20c and 20d. It is attached.

DESCRIPTION OF SYMBOLS 1 Snow removal blade 1a Sub blade 2 Rotating shaft 3 Moving motor 4 Snow removing motor 5a, 5b Gear 6 Connection shaft 7a 1st moving chain 7b 2nd moving chain 8a, 8b Rotor 9 Bearing fixed plate 10 Bearing part 11 Bearing stand 12 Bearing spacer 13 Bearing bottom plate 14 Bearing wheel 15 Box 16 Box spacer 17 Box bottom plate 18 Box wheels 19a, 19b Guide 20a First device table 20b Second device table 20c Third device table 20d Fourth device table 23a, 23b 23c, 23d Heater 25 Main switch 26 Sub switch 31 Snow removal device 32 Main switch pressing projection 33 Sub switch pressing projection 34a, 34b Chain fixing portion

Claims (2)

First and second device platforms installed on the roof in parallel and spaced apart;
A snow removal motor which is slidably mounted in the longitudinal direction on the first device table;
One end is attached to the drive shaft of the snow removal motor, the other end extends to the second apparatus base, and the rotation shaft rotates by the rotation of the snow removal motor.
A bearing unit that is slidably mounted in the longitudinal direction on the second device base, and the other end of the rotating shaft is rotatably mounted;
A snow removal blade helically attached around the rotation axis along the longitudinal direction and at an angle to the rotation axis;
A moving motor that reciprocally moves the snow removal motor between one end and the other end in the longitudinal direction of the first device base;
A snow removal device comprising: interlocking movement means for moving the bearing portion between one end and the other end in the longitudinal direction of the second device base in conjunction with the movement of the snow removal motor by the movement motor. Third and fourth device bases that connect one end and the other end of the first and second device bases, respectively;
2. The snow removal device according to claim 1, further comprising: first to fourth heaters provided on the lower surfaces of the first to fourth device bases, respectively, for melting snow under the lower surface.

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