JPH0224854Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a snow removal device for a roof, and in particular, the invention repeatedly scrapes off snow using a scraping plate that slides along the top surface of the roof. The present invention relates to a device that does this.

[Conventional technology]

Conventionally, as a device for removing snow from a roof, for example, as shown in Japanese Utility Model Application No. 60-22621,
2. Description of the Related Art Devices are known that remove snow by melting snow on a roof by using a heater or by running hot water.

Also, for example, Publication No. 57-38486, Publication No. 38486,
As shown in Publication No. 58-5777, the entire surface of the roof is covered with an endless sheet or shutter, and the sheet is circulated or the shutter is slid to remove snow from the roof. A device that has been used for this purpose is known.

Furthermore, as shown in JP-A-57-184155, for example, a vertical frame is arranged in the vertical direction of the roof, and a horizontal frame that reciprocates along the vertical frame is provided in the width direction of the roof. There is also known an apparatus in which a scraper plate is swingably attached to the horizontal frame, and the scraper plate is used to remove snow from the roof.

[Problem that the invention attempts to solve]

These conventional devices are generally large-scale and require time and effort to install.
There were problems such as high equipment costs.

Additionally, devices that melt snow by heating with a heater or the like have the problem of high fuel costs.

Furthermore, with devices that scrape snow using a scraper plate, the resistance applied to the scraper plate when scraping snow causes the scraper plate to lift or tilt from the top of the roof, making it impossible to remove snow reliably. There was a problem.

The purpose of this invention is to have a simple structure, to be able to easily install it on the roof, to reduce equipment costs, to reduce power costs, and to be able to remove snow from roofs reliably. is to get the equipment.

[Means for solving problems]

The roof snow removal device of the present invention consists of an outbound chain conduit and a return chain conduit that are fixedly fixed to the roof in pairs and have a groove formed along the axial direction, and an outbound chain conduit and a return chain conduit that can freely circulate within these chain conduits. an annular drive chain inserted therethrough; a shaft whose end is fixed to the drive chain through a cut groove in the chain conduit and moves as the drive chain rotates; a wheel that adsorbs and rotates along a guide fixed to the roof when located in the conduit; and a wheel provided on the shaft, the lower edge of which is substantially in contact with the roof when the shaft is located in the outbound chain conduit; The device is characterized in that it is equipped with a scraping plate that scrapes snow toward the eaves of the roof, and repeatedly removes snow falling on the roof from the eaves.

[Effect]

In the roof snow removal device of the present invention, as the drive chain inserted into the outgoing chain conduit and the incoming chain conduit circulates, the shaft fixed to the drive chain circulates. By adsorbing the wheels provided on this shaft to the guide provided on the roof when it is located in the chain conduit,
After preventing the sweeping board provided on the shaft from lifting up or tilting, the advancing of this sweeping board scrapes snow toward the eaves of the roof.On the other hand, when the shaft is located at the return chain conduit The shaft, wheels, and scraping plate are raised above the roof and returned to the ridge of the roof, for example, and the circulating motion of the scraping plate repeatedly scrapes off the snow accumulated on the roof to remove snow. It is something.

〔Example〕

The structure of an embodiment of the roof snow removal device of the present invention will be explained with reference to FIGS. 1 to 11.

As shown in FIG. 1, the apparatus of this embodiment is installed on a roof 1 made of galvanized iron thatched with solid wood tiles and sticks. This roof 1 slopes gently down from the ridge side to the edge side of the eaves, and has a plurality of tile rods 2 extending in the direction of inclination, and there are grooves between the tile rods 2. It is a plate part 3.

Reference numerals 11 and 12 denote an outbound chain conduit and a return chain conduit, respectively, which are made of elongated steel pipes or the like, and each of these chain conduits 11 and 12 is formed with a kerf 13 extending in the axial direction thereof. These chain conduits 11 and 12 are attached to the roof 1 in parallel with the tile bar 2, with the return chain conduit 12 located above the outbound chain conduit 11. Further, in this embodiment, two pairs of outbound chain conduits 11 and two inbound chain conduits 12 are arranged in the horizontal center of the roof 1, and a pair of outbound chain conduits 11 and inbound chain conduits 12 are provided at both side edges of the roof 1, respectively. A conduit 12 is disposed, and the grooves 13 of the chain conduits 11 and 12 at the center and the grooves 13 of the chain conduits 11 and 12 at both side edges are opposed to each other.

The number of pairs of chain conduits 11 and 12 to be provided is determined by
It may be determined based on the horizontal length of the roof 1, and two pairs of chain conduits 11 with minimum cut grooves 13 facing each other,
12 is enough.

Further, the chain conduits 11 and 12 are connected to the roof 1 through a chain conduit holder 14 made of stainless steel or the like.
installed on. This chain conduit holder 14
This is constructed by attaching a pipe support 16 to a commercially available snow stopper 15.

The snow stopper 15 is formed in a substantially U-shape from the front, and is attached to the roof 1 by fitting its lower end into the tile rod 2 and tightening it with bolts and nuts (not shown). .

The tube support 16, as shown in FIG.
A semi-cylindrical body 19, which is formed by cutting one side of a steel pipe, is welded to both ends of a substrate 18 which is approximately U-shaped from the front. The two chain conduits 11 and 12 are connected to the upper and lower semi-cylindrical bodies 1, respectively.
9 and is fixedly attached to the roof 1 by being tightened with screws 20 screwed into these semi-cylindrical bodies 19.

Further, a center drive unit 21 is attached to the house 4 via a construction material 22a facing the end of the chain conduit 11, 12 on the eaves side of the central part, and the chain conduit 11, 12 on both sides Drive units 23 for both ends are respectively attached to the house 4 via construction members 22b, facing the ends on the eaves side.
Furthermore, chain conduits 11, 12 in the center and both sides
A gear stand 24 made of stainless steel or the like is attached to the roof 1, facing the edge of the roof 1.

As shown in FIG. 8, the center drive unit 21 includes a horizontal plate portion 25 and a horizontal plate portion 25.
It has a base body 27 consisting of a pair of vertical plate parts 26 erected at the rear end. A motor 28 is attached to the rear end of the horizontal plate portion 25, and a gear 28 is attached to the rotation shaft of the motor 28.
a is fixed. A pair of bearings 29 are attached to the front of the motor 28, and these bearings 29 support a drive shaft 31 with coupling rings 30 fixed to both ends.
is rotatably supported, and a pair of gears 32 and 33 are located between both the bearings 29.
is fixed to the drive shaft 31. An endless chain 34 extends between one gear 32 provided on the drive shaft 31 and the gear 28a of the motor 28. Further, three gears 35, 3 are located between both the vertical plate portions 26.
6 and 37 are rotatably attached to the shaft, and these 3
gears 35, 36, 37 and the drive shaft 3
An endless chain 38 spans the other gear 33 provided at the gear 1. Further, a shaft 39 that supports the upper gear 37 of the gears 35, 36, and 37 located between the two vertical plate parts 26 is protruded to the side of both the vertical plate parts 26, and this protruding A drive gear 40 is fixed to each portion. Furthermore, arm bodies 41 are rotatably attached to both vertical plate portions 26 at rear positions of these drive gears 40 . Each of these arm bodies 41 has a presser gear 42 rotatably attached to its tip, and a spring 43.
is urged downward by.

As shown in FIG. 9, the drive unit 23 for both ends has a substantially similar structure to the drive unit 21 for the center described above. Therefore, corresponding parts will be designated by the same reference numerals and their explanation will be omitted. The difference in structure is that the motor 28 that was in the center drive unit 21 explained earlier,
The structure has no chain 34 wound around the gear 28a of the motor 28 and no gear 32 of the drive shaft 31 around which the chain 34 is wound, and in addition, there is only one vertical plate 26 of the base 27. Correspondingly, the driving gear 40 and the arm body 41 are provided only on one side of the vertical plate portion 26.

The drive shaft 31 of the center drive unit 21 and the both end drive units 23
The drive shaft 31 is connected to both drive shafts 3 by means of coupling rings 30 provided at their ends.
The drive shaft 31 of the center drive unit 21 is connected by a connection shaft 44 connected to the center drive unit 21.
The rotation is transmitted to the drive shaft 31 of the drive unit 23 for both ends.

As shown in FIG. 10, the gear stand 24 is composed of a commercially available snow stopper 45 and a support plate 48 attached to the snow stopper 45 with bolts 46 and nuts 47.

The snow stopper 45 is formed in a substantially U-shape from the front, and its lower end is fitted into the tile bar 2, and the bolt 4
It is attached to the roof 1 by tightening with 9 and nuts 50.

Further, a support shaft 51 is fixedly fixed through the upper end of the support plate 48, and a drive gear 52 is rotatably attached to the end of the support shaft 51. That is, a pair of stoppers 53 are fitted to the shaft 51 with the drive gear 52 in between, and these stoppers 53 are connected to the support shaft 5.
1 with screws 54, the drive gear 52 is attached to the support shaft 51 in a manner that it is prevented from coming off. In addition, in the gear stand 24 provided in the horizontal center of the roof 1, drive gears 52 are attached to both ends of the support shaft 51, while on the other hand, in the gear stands 24 provided in both sides, A drive gear 52 is attached only to one end of the shaft 51.

Reference numeral 61 denotes a drive chain, which is formed into an annular shape by connecting a plurality of ring bodies 62 made of stainless steel or the like via a plurality of connectors 63 made of stainless steel or the like. The drive chain 61 is inserted through the chain conduits 11 and 12 so as to be able to circulate freely, and is connected to the drive unit 2.
1 and 23 drive gears 40 and the gear stand 2
4 drive gear 52. Also,
This drive chain 61 includes the drive units 21 and 2.
The presser gear 42 of No. 3 is engaged from above, and the tension action of this gear 42 causes the drive chain 61 to
This prevents sagging, etc.

As shown in FIGS. 6 and 7, the connector 63 is constructed by overlapping a pair of connecting plates 64 having substantially the same size as the ring body 62. As shown in FIGS. These connecting plates 64 have notches 65 formed on both sides thereof, and a long hole 66 formed in the center. The ring bodies 62 are connected to each other by being inserted into the overlapping portions of the ring bodies 62, respectively.
A threaded portion 68 having the same cross-sectional shape as the elongated hole 66 formed on one side of the connecting bolt 67 is fitted into the elongated hole 66 of both connecting plates 64, and a nut 69 is screwed into this threaded portion 68. By being attached, both connecting plates 64 are held in a joined state.

Further, a threaded portion 70 having a circular cross section is formed on the other side of the connecting bolt 67, and this threaded portion 70 having a circular cross section protrudes from the kerf 13 of the chain conduits 11 and 12.

Reference numeral 71 denotes a shaft made of a hard light alloy or the like, and is installed horizontally on the drive chain 61 inserted through the opposing chain conduits 11 and 12. That is, a nut 72 is provided at each end of the shaft 71, and by screwing the nut 72 into a threaded portion 70 having a circular cross section of the connection bolt 67, the shaft 71 is connected to the drive chain 61. It is fixedly attached to the Furthermore, as shown in Figure 1,
In this embodiment, for one drive chain 61, two
Although a book shaft 71 is attached, the number of shafts 71 is not limited to two, and may be determined according to the length from the ridge side of the roof 1 to the eaves side, etc. This will be discussed later.

Reference numerals 73 and 74 are a main wheel and a subwheel, respectively, and are rotatably attached to appropriate locations on the shaft 71. As shown in FIGS. 2 to 5, a cylindrical tube portion 75 is rotatably provided at the center of the main wheel 73.
5 through which the shaft 71 passes, and the cylindrical portion 75
The main wheel 73 is attached to the shaft 71 by pressing the screw 76 screwed onto the shaft 71 . Further, one end of an elastic support rod 78 is fixed to the screw 76 by a nut 77 screwed onto the screw 76, and the rear end of the support rod 78 is attached to the rear end of the auxiliary wheel 74. central axis 7
9 is rotatably supported. The circumferential surfaces of these wheels 73 and 74 are made of ferrite magnets, so that these wheels 73 and
The tile rod 74 is adapted to be rotated by suction along the upper surface of the tile rod 2 as a guide made of a galvanized iron plate.

Reference numeral 80 denotes a sweeping plate, which is made of a lightweight and elastic light alloy plate such as hard aluminum or a synthetic resin plate, and its width is slightly shorter than the width of the groove plate portion 3 of the roof 1. And this cleaning plate 80
is attached to the front side of the shaft 71 substantially vertically with its lower edge substantially touching the bottom surface of the groove plate portion 3.

Next, the operation of this embodiment will be explained.

As soon as the snow starts to fall, the motor is started, and the rotation of the motor 28 rotates the drive shaft 31 of the center drive unit 21 via the chain 34, and also rotates the drive shaft 31 of the center drive unit 21 via the connection shaft 44. Drive shaft 31
is rotated. Further, the shaft 39 is rotated through the chain 38, and the drive gear 40 is rotated accordingly, and the drive chain 61 is rotated by the drive gear 40. Regarding these driving relationships,
It is indicated by the arrow in FIGS. 8 and 9.

As the drive chain 61 circulates, a sweeping plate 80 provided on the shaft 71 located on the outbound chain conduit 11 sweeps snow on the roof 1 toward the eaves, as shown by the arrow in FIG. Scrape it out. Scraping plate 80
After the snow is removed from the eaves, the shaft 71 equipped with the sweeping plate 80 enters the return chain conduit 12,
The cleaning plate 80 and wheels 73, 74 return to the ridge side of the roof 1 in a state floating above the upper surface of the roof 1. By repeating this, the roof 1
The snow on top is removed repeatedly.

In other words, instead of removing thickly accumulated and hard snow, the light snow that is falling is repeatedly scraped out little by little, so the scraping plate 80 only needs to be lightweight and requires less power to drive. , the amount of snow falling from the eaves will be smaller,
There is no risk of an accident occurring due to this.

Therefore, the motor 28 has power consumption driven by a household 100V AC power supply, for example.
One small motor of about 200W is sufficient.
Furthermore, since each drive chain 61 having the same length is driven by one motor 28, there is no slippage, so the shaft 71 always runs normally.

By the way, in consideration of the power of the motor 28, the effectiveness of snow removal, the wear of members, etc., it is desirable that the moving speed of the drive chain 61 be 10 to 30 cm per second, and that the cleaning period of the cleaning plate 80 be within 30 seconds. For example, when the length of the roof 1 in the slope direction is approximately 8.6 m, the drive chain 61
The length of the motor is approximately 18 m, but the rotation of the motor 28 is decelerated and the drive gear 40 is rotated at 40 revolutions per minute in the drive units 21 and 23.
If the diameter of the drive chain 61 is about 10 cm, the moving speed of the drive chain 61 is about 20 cm per second. Moreover, at this time, if three shafts 71 each having a sweeping plate 80 are attached at equal intervals to each drive chain 61, the sweeping plate 80 will sweep the roof 1 at a cycle of approximately 30 seconds. .

Note that when the drive chain 61 runs, since the drive chain 61 is located within the chain conduits 11 and 12, the drive chain 61 does not move around due to wind or the like. and drive gear 4
0 and 52, the drive chain 61 runs extremely smoothly, and damage caused by contact with the roof 1 can be prevented.

Further, a pair of front and rear wheels 73, 7 are mounted on the shaft 71.
4, and the wheels 73 and 74 are adsorbed and rotated along the tile rod 2, so that even if the scraping plate 80 receives resistance from snow, the scraping plate 80 will not lift up or tilt. Snow can be removed reliably without causing any damage.

In addition, apply aluminum tape to the tip of the eaves of the tile rod 2.
If the adhesion force of the wheels 73 and 74 to the tile bar 2 in this part is gradually reduced by increasing the number of 4 times, when the shaft 71 moves from the outbound chain conduit 11 to the inbound chain conduit 12, the tile bar 2 Wheels from 7
3 and 74 will also be separated smoothly.

In the above embodiment, an example was explained in which the snow removal device of the present invention was applied to a roof 1 with tile sticks, but this device can be applied to roofs without tile sticks, such as flat roofs and vertical flat roofs, and tiled roofs. It can also be applied to

For these roofs, as a substitute for tile rods, the required number of metal square tubes or U-shaped steel materials are attached to the roof using the ridgepoles and rafters of the house, and the gear stands 24 and chains are attached to these. What is necessary is to attach the conduit holder 14.

In addition, in the case of a tiled roof, if the lower edge of the scraping plate 80 is placed in approximate contact with the most protruding part of the tile, snow will accumulate in the recessed part of the tile, but this is a small amount and will not cause any problems. Snow does not accumulate higher than the protruding parts of tiles.

[Effect of idea]

According to the present invention, snow that is accumulating on the roof can be repeatedly removed by the scraping plate installed on the shaft that circulates along with the annular drive chain, so the scraping plate itself can be made smaller. At the same time, the power required to drive the drive chain is small, so snow can be removed efficiently without increasing power costs. Since it is inserted into the conduit, the drive chain does not move loosely due to wind, etc., and since the shaft is equipped with wheels that rotate by suction along the guide section of the roof, it can be easily moved even when subjected to resistance from snow etc. The cleaning board does not lift up from the roof etc., so snow can be removed reliably and stably, and as mentioned above, the structure of the manor is simple. It is easy to install and can be provided with inexpensive snow removal equipment.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the roof snow removal device of the present invention, Fig. 2 is an enlarged perspective view of the vicinity of the same sweeping plate, Fig. 3 is a plan view of the same wheels, and Fig. 4 is the same wheels. 5 is a front view of the same wheel, FIG. 6 is a perspective view of the vicinity of the joint between the drive chain and the shaft,
Fig. 7 is an exploded perspective view of the vicinity of the joint between the drive chain and the shaft, Fig. 8 is a perspective view of the drive unit for the center, Fig. 9 is a perspective view of the drive unit for both ends, and Fig. 10 is the gear of the above. A front view of the stand, and FIG. 11 is a front view of the tube support of the same chain conduit holder. 1... Roof, 2... Tile rod as a guide, 11
...Outbound chain conduit, 12...Return chain conduit, 13...
Cut groove, 61... Drive chain, 71... Shaft, 7
3, 74...wheel, 80...scavenging board.

Claims (1)

[Scope of utility model registration request] An outbound chain conduit and a return chain conduit that are fixedly fixed to the roof in a pair and have a groove formed along the axial direction, and an annular drive chain that is inserted into these chain conduits so as to be able to circulate freely; A shaft whose end is fixed to the drive chain through the cut groove of the chain conduit and moves as the drive chain rotates; A wheel is provided on the shaft that attracts and rotates along a fixed guide body, and when the shaft is located in the outbound chain conduit, the snow is moved toward the eaves of the roof with the lower edge substantially touching the roof. A snow removal device for a roof, characterized in that it is equipped with a scraping plate that scrapes toward the roof, and repeatedly removes snow falling on the roof from the eaves.