JPH11152937A - Snow removing device for roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently remove snow by driving with a drive member for controlling a movable member vertically reciprocated along the upper face of an inclined roof by a control member. SOLUTION: A movable member 1 of substantially the same length as the ridge of an inclined roof 2 can be vertically reciprocated along the upper face of an inclined roof 2 through guide rails 5, 6 vertically attached to the center part and/or both the side parts of the inclined roof 2. A cable 14 is wound on rotation members 10-13 attached to the four-corner part of the inclined roof 2 in a tight state in substantially eight-shape, and the movable member 1 is driven by a drive mechanism 9 controlled by a sensor. When the rotation member 10 is rotated by the motor 9 of the drive mechanism 15 clockwise, the cable 14 wound in the substantially eight-shape is moved so as to illustrate the substantially eight-shape while the tight state is held, and both the ends of the movable member 1 is pulled downward. The movable member 1 is lowered along the guide rails 5, 6 while cutting the side of the snow layer of the upper face of the inclined roof 2, and the snow layer upward of a cross section falls by self weight. A simple device and small drive force enable snow removing of mechanically good efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a snow removal device for a roof.

[0002]

2. Description of the Related Art In winter snow areas, snow removal on a roof requires a great deal of labor and is a troublesome operation with a risk of falling. Various types of snow removal devices for roofs that can mechanically perform this snow removal operation without human intervention have been proposed, and in recent years, a snow melting type using heat has become mainstream. In this case, as a heat source, those utilizing the heat generated by an electric heater, those utilizing hot water produced by a hot water boiler using petroleum (kerosene), gas or electricity, and the like are known. In addition, maintenance costs are high. On the other hand, as a snow removing device that does not use thermal energy, there are a mechanical device having a belt conveyor function installed on a roof, and a device for removing snow by moving a snow pushing member guided on a rail installed on a roof up and down. It is known. According to these snow removal devices, a large driving force is required and the entire device becomes large, which not only requires a large amount of equipment cost, but also, except in winter, large-scale devices are exposed on the roof and the entire building is exposed. It detracts from aesthetics.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional situation, and is intended to be able to mechanically and efficiently remove snow with a small driving force using a simple device without using a heat source. It is an object of the present invention to provide a snow removal device for a roof.

[0004]

As a means for achieving this object, the present invention provides a movable member for cutting the side of a snow layer which reciprocates up and down along the upper surface of a sloping roof, and driving the movable member. The gist of the present invention is a snow removal device for a roof including a driving mechanism for controlling the driving mechanism and a control device for controlling the driving mechanism. or,
The movable member is formed of a plate or one or a plurality of wires, and the driving mechanism is a rotating member attached to the four corners of the upper surface of the sloping roof, and the rotating member is wound around the rotating member in a substantially 8-shaped tension state. While turning, a rope on which both ends of the movable member are fixed, a forward / reverse rotation motor driving the rotating member,
The control device includes a return switch attached to the upper and lower ends of the upper surface of the sloping roof, and the control device includes a snow sensor and a temperature sensor.

[0005]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a movable member for cutting the side of the snow layer, which is formed from a horizontal plate having substantially the same length and appropriate width as the length of the ridge of the inclined roof 2,
A support plate 3 is mounted on the upper surface of the support plate 3 at a predetermined interval, and a reinforcing member 4 is mounted over the support plate 3 as shown in FIG.

The movable member 1 can vertically reciprocate along the upper surface of the sloping roof 2 via guide rails 5 and 6 attached to the center or both sides and both sides of the sloping roof 2. Attached to. Also, FIG.
As shown in (c), engaging pieces 7, 8 are attached to the center and both ends of the lower surface of the movable member 1, and the engaging piece 7 at the center is attached to the guide rail 5, and the engaging pieces 8 at both sides are attached to the guide rail 5. Each is slidably engaged with the guide rail 6. (D) and (f) in FIG.
If a light movable member such as
In addition, the engaging pieces 7 and 8 can be unnecessary or have a simple structure.

Reference numeral 9 denotes a driving mechanism for driving the movable member 1. The driving member 9 includes pulleys and other rotating members 10 to 13 attached to the four corners of the inclined roof 2. A rope 14 such as a wire or a rope wound in a state, a forward / reverse rotating motor 15 attached to an end under the eaves to drive the rotating member 10, and a return attached to the upper and lower ends of the inclined roof 2. Switches 16, 17
It is composed of

The cable 14 has a central crossing portion passing through a long hole 5a provided substantially at the center of the guide rail 5.
It passes under the movable member 1 and the upper rotating member 1
As shown in FIG. 2 (c), the engaging pieces 8 at both ends are fixed to the rope portions that have turned around 1 and 12, respectively.

As shown in FIG. 2 (c), receiving members 18 are respectively attached to substantially middle portions on both sides of the sloping roof 2 so as to receive the ropes 14 and prevent slack or flapping. It is.

Reference numeral 19 denotes a motor 15 on the lower side of the eaves of the sloping roof 2.
And a control device mounted adjacent to the control unit. The control device includes a snow sensor 20 and a temperature sensor 21, and controls the drive mechanism 9 based on signals from these sensors. The return switches 16 and 17 are electrically connected to the control device 19.

In the roof snow removing apparatus according to the present invention having the above structure, when the rotating member 10 is rotated clockwise by the motor 15 of the driving mechanism 9, as shown in FIG. , 11 is pulled downward (in the direction of arrow D), and the rotating member 1 is interlocked with this pulling.
The rope portion between the first and the first 13 is in the upper right direction.
The cable portion between the two is pulled downward, and the cable portion between the rotating members 12 and 10 is pulled in the upper left direction. That is, the cable 14 wound in a substantially figure-eight shape is moved so as to draw a figure-eight figure while maintaining the tensioned state.

As a result, the movable member 1 is pulled downward at both ends, and descends while moving in parallel along the guide rails 5 and 6 on the upper surface of the inclined roof 2 as shown in FIG. Although omitted, the side surface of the snow layer piled on the upper surface of the inclined roof 2 is cut. The snow layer above the cut surface slides off the sloping roof 2 by its own weight and is removed.

When the movable member 1 descends below the eaves of the sloping roof 2 as shown in FIG. 4 (c), it comes into contact with the return switch 17 at the lower part of the eaves and is turned ON (conducting state), and its electric signal is transmitted to the control device. 19, the motor 15 is rotated in the reverse direction.

When the motor 15 rotates in the reverse direction, the rotating member 10 is rotated in the counterclockwise direction, and the rope between the rotating members 10 and 12 is pulled in the lower right direction. 13 is upward (arrow E)
Direction), the rope portion between the rotating members 13 and 11 is pulled downward and the rope portion between the rotating members 11 and 10 is pulled upward. That is, the rope 14 is moved in the opposite direction to the above.

As a result, both ends of the movable member 1 are pulled upward, and the movable member 1 is pulled up while moving in parallel along the guide rails 5, 6 on the upper surface of the inclined roof 2, and as shown in FIG. When the ascent is reached, the upper return switch 16 is brought into contact with the upper return switch 16 to be turned ON (conduction state), and the electric signal is input to the control device 19 to stop the motor 15. That is, the movable member 1 is returned to the initial position.

The movable member 1 is not limited to the above-described one,
As shown in FIG. 3 (a), the width of the central portion is narrowed 22,
As shown in (b), a trapezoidal plane 23 may be used, or any other suitable form may be used, or as shown in (c), two plates may be assembled via a length adjusting mechanism 24a.

Further, the movable member 1 is not limited to a plate material,
For example, as shown in FIG. 3 (d), a wire 25 formed of one wire, as shown in FIG. 3 (e), a wire 26a having several wires 26a arranged at a fixed interval, and as shown in FIG. The wire 27a may be a wire 27a joined by a sheet material 27b, or the like. In short, any structure can be used as long as the side surface of the snow layer on the sloped roof 2 can be cut smoothly.

By reciprocating the movable member 1 in the vertical direction as described above, the snow on the sloping roof 2 can be removed, and this snow removing operation is appropriately performed by a main switch (not shown) provided in the room. In addition, it is also possible to automatically drive.

For example, there is an automatic operation method using the snow sensor 20. When the snow amount on the sloping roof 2 reaches a certain height (for example, 5 cm), the driving mechanism 9 is used.
Set to work. That is, the snow is automatically removed every time the snow on the sloping roof 2 reaches a certain height.

Next, there is a method of automatically operating the temperature sensor 21 in combination with the snow sensor 20. This method is set so that the temperature sensor 21 is turned on when the temperature is 0 ° C. or higher. In other words, even if the amount of snow on the sloping roof 2 is equal to or less than a certain height, the drive mechanism 9 operates when the air temperature is equal to or higher than 0 ° C., and the movable member 1 reciprocates to remove snow. This is to prevent the snow crystals from melting once after the outside air temperature reaches 0 ° C. or higher, and then cooling again to make it difficult to remove snow when the snow tightens and hardens like ice. In this case, if the temperature is below 0 ° C,
Although the temperature sensor 20 does not turn on, the snow sensor 20 turns on when the snow amount reaches a certain height, so that the movable member 1 can remove snow.

There is also a method of automatically operating the snow sensor 20 in combination with a timer (not shown). In this method, the height of the snow sensor, which can be set arbitrarily, is set to a constant value.
For example, it is set so as to operate at a set time in conjunction with a timer. According to this method, it is possible to periodically remove snow during snowfall. When the snowfall stops and the snowfall is equal to or less than a certain value, useless idle rotation of the movable member 1 by the timer is prevented.

Further, it is also possible to set so that the automatic operation is periodically performed at regular time intervals only by the timer when the snow accumulation is continued. It is preferable that an optimal automatic driving method is appropriately selected and set in consideration of the amount of snow in the use area and the snowfall situation at that time.

FIG. 5 shows another embodiment of the present invention, in which the movable member 31 is of a hanging type. In this case, a rectangular tube member is used as the guide rail 32,
A slit 32a is provided in the center of the lower surface along the length direction, a wheel 33 is rollably inserted into the guide rail 32, and a hanging member 34 is attached to this axle to form a slit 3a.
2a and a movable member 31 at the lower end.
And the drive mechanism and other components are the same as in the above-described embodiment.

The method of use is the same as that of the above-described embodiment, and by reciprocating the movable member 31 in the up-down direction,
The snow on the sloping roof can be removed.

FIG. 6 shows still another embodiment of the present invention, in which two snow removal devices P and Q are juxtaposed on an inclined roof. In this case, the movable member 41 is configured to reciprocate up and down along the guide rails 42 on both sides. It is suitable when the sloped roof is wide and large, and depending on the size of the roof, two or more roofs can be installed side by side.

The rotating members 10 and 11 to 13 use sprockets, and the ropes 14 can be implemented by a chain that meshes with the sprockets. It may be configured to be wound around and interlock.

[0027]

As described above, according to the present invention,
A movable member that reciprocates vertically along the upper surface of the sloping roof is provided, and the side of the snow layer is cut by this movable member to slide down the snow and remove the snow from the sloping roof, so a heat source is used. The present invention is advantageous in that snow can be removed mechanically and efficiently with a small driving force by using a simpler device than a conventional snow-plowing snow removing device. or,
It can be installed by simple installation work irrespective of existing buildings and new buildings without requiring large capital investment and maintenance costs, and it is possible to automatically or manually remove snow accumulated on sloping roofs safely and securely, etc. Also has excellent effects.

[Brief description of the drawings]

FIG. 1 is a schematic overall configuration diagram showing an embodiment of the present invention.

2A is a sectional view of a portion A in FIG. 1, FIG. 2B is a sectional perspective view of a portion B, and FIG. 2C is a sectional view of a portion C in FIG.

FIGS. 3A to 3F are explanatory views showing other examples of the movable member. FIG.

FIGS. 4A to 4C are explanatory views showing the operating state of the movable member, respectively.

FIG. 5 is a schematic cross-sectional perspective view of a main part showing another embodiment of the present invention.

FIG. 6 is a schematic plan view showing still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Movable member 2 ... Inclined roof 3 ... Support plate 4 ... Reinforcement material 5, 6 ... Guide rail 7, 8 ... Engagement piece 9 ... Driving mechanism 10-13 ... Rotating member 14 ... Rope 15 ... Motor 16, 17 ... Return switch 18 ... Receiving material 19 ... Control device 20 ... Snow sensor 21 ... Temperature sensor 22-27 ... Movable member (other examples) 31 ... Movable member 32 ... Guide rail 33 ... Wheel 34 ... Hanging member 41 ... Movable member 42 ... Guide rail

Claims (4)

[Claims] 1. A roof comprising: a movable member for cutting a side surface of a snow layer which reciprocates up and down along an inclined roof upper surface; a drive mechanism for driving the movable member; and a control device for controlling the drive mechanism. For snow removal equipment. 2. The snow removing device for a roof according to claim 1, wherein the movable member is made of a plate or one or more wires. 3. A driving mechanism, comprising: rotating members attached to the four corners of the upper surface of the sloping roof; winding around these rotating members in an approximately 8-shaped tension state; and both ends of the movable member are fixed. The roof snow removing device according to claim 1, further comprising a cable, a forward / reverse rotation motor driving the rotating member, and return switches attached to upper and lower ends of the inclined roof upper surface. 4. The roof snow removing device according to claim 1, wherein the control device includes a snow sensor and a temperature sensor.