JP2001220706A - Construction method for snow melting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce snow melting time and power comsumption by exhibiting snow melting performance optimum for the snowfall characteristic in a cold district and to obtain durability. SOLUTION: According to this construction method for a snow melting apparatus, a sheet-like heating unit 1 having a heating element for feeding heat for melting snow is installed so that the surface of the sheet-like heating unit is put in a position equal to or higher than the surface of a pavement part 2 of an installation place, whereby at the time of a snowfall, the sheet-like heating unit 1 located in a position higher than or equal to the surface of the pavement part 2 of the installation place is heated to immediately exhibit snow melting performance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates mainly to a method for constructing a snow melting apparatus, and more particularly to a method for efficiently melting snow on the premises of ordinary households and shops.

[0002]

2. Description of the Related Art Conventionally, in cold regions with a lot of snowfall, snow removal work on public roads as well as general homes and store premises, especially from the sidewalks to general home entrances, garages or parking spaces, has been carried out. Has become a major problem in everyday life.

In order to solve this problem, there is a snow melting apparatus in which a heating wire, a hot water pipe, or the like is buried in the ground of the premises as a heating element and a road surface is heated to melt snow. The “heating wire” generates heat by Joule heat when energized, and the “hot water pipe” generates heat by circulating hot water (actually, antifreeze) heated by combustion of a kerosene boiler as a heat medium. Generally, the road surface temperature is raised by these heatings to melt snow on the road surface. Such a snow melting device is also called a road heating device or a road heating.

An example will be described with reference to FIGS. 10 and 11. This is an example in which a general house 40 has an entrance 42 and a parking space 43 facing a sidewalk 41.
In the figure, a snow melting device 45 is buried in the approach to the parking space 43 and the entrance 42, and the range is shown as a snow melting device burying portion 50.

The snow melting device 45 is installed at a ground 56
It has a subgrade section 51, a concrete subbase section 52, and an asphalt pavement section 53 on which crushed stones are spread, and each has a depth D1 (about 300 mm as an example) in civil engineering work.
D2 (about 70 mm) and D3 (about 30 mm). The heating wire 54 as a heating element is laid along with a metal mesh on the upper surface of the subgrade 51 and is buried in the concrete subbase 52 and the asphalt pavement 53. Of course, there is a hot water pipe buried at the position of the heating wire 54, but the basic configuration of the buried portion is the same.

The snow melting apparatus 45 includes a snowfall sensor, a temperature sensor, and a ground temperature sensor (sensors are not shown) in order to detect the snowfall 55, and automatically operates according to signals from the sensors. Or a control device for manual operation at the discretion of the user.

[0007]

In the above-described conventional snow melting apparatus 45, the heating wire 54 and the hot water pipe, which are heating elements, are buried in the ground at a depth D2 + D3 of about 100 mm from the surface of the ground. Therefore, even if the operation is started automatically or manually immediately after detecting the snowfall 55, for a while, the heating wire 54 serving as a heating element heats the ground on the upper part of the heating element, so that the entire snow melting device 45 is heated. Elevating temperatures requires operating time and electrical energy, and does not immediately melt snow on the surface. Thus, it takes time to melt snow. The same is true for the hot water pipe.

The snowfall 55 rarely occurs continuously for 24 hours, but often intermittently falls. Therefore, the operation of the snow melting device 45 is often intermittent, and the temperature of the snow melting device 45 decreases each time. At the time of the next snowfall, it takes time to reheat the entire once cooled road surface. For this reason, the consumption of electricity or kerosene increases, so that the running cost is high.

As described above, considering the entire snow season, due to the temperature rise of the snow melting device 45 and intermittent operation,
The energy loss is large, and in this respect the snow melting performance is inappropriate and the snow melting efficiency is low.

[0010] Of course, since the snow melting device 45 buries a heating element in the ground by civil engineering, the construction requires a long construction period, and the construction cost is high.

The present invention solves the above-mentioned problems of the conventional snow melting apparatus by exhibiting optimum snow melting performance for snowfall characteristics in cold regions, thereby shortening the snow melting time and saving power. It is an object of the present invention to provide a method for constructing a snow melting apparatus using a planar heating element.

[0012]

According to the present invention, there is provided a method for constructing a snow melting apparatus, comprising: a sheet heating element having a heating element for supplying heat for snow melting; It is installed so as to be higher than or equal to the surface of the part.

According to the present invention, in the snow melting apparatus, when the heating element is energized during snowfall, the planar heating element generates heat.
At the same time, since the surface of the sheet heating element is constructed above or at the same height as the surface of the pavement at the installation location, the heat generated by the sheet heating element immediately exerts its effect as the heat for snow melting. Melt snow in a short time. Moreover, since it is sufficient to simply install the planar heating element at the installation location, it is possible to provide a construction method of the snow melting apparatus in which the installation work is easy.

[0014]

DETAILED DESCRIPTION OF THE INVENTION The invention according to claim 1 is provided with a sheet heating element having a heating element for supplying heat for snow melting, and the surface of the sheet heating element is higher than the surface of the pavement around the installation location. This is also a method for constructing a snow melting apparatus installed so as to be located at the upper level or at the same height.

According to the present invention, in the snow melting apparatus, when the heating element is energized during snowfall, the planar heating element generates heat.
At the same time, since the surface of the sheet heating element is constructed above or at the same height as the surface of the pavement at the installation location, the heat generated by the sheet heating element immediately exerts its effect as the heat for snow melting. Melt snow in a short time. In particular, since the planar heating element may be installed at the installation location, the installation method of the snow melting apparatus can be simplified.

According to a second aspect of the present invention, there is provided a sheet heating element having a heating element for supplying heat for snow melting, and a heating element installation tool fixed to a pavement portion at an installation location and holding the sheet heating element. The present invention provides a method for constructing a snow melting apparatus in which at least a planar heating element is detachably mounted on a pavement.

According to the present invention, when current is supplied to the heating element during snowfall of the snow melting apparatus, the sheet heating element generates heat. At the same time, since the surface of the sheet heating element is constructed so as to be located above or at the same height as the surface of the pavement at the installation location, the heat generated by the sheet heating element immediately exerts the snow melting effect as the heat for snow melting. Therefore, snow melting can be performed in a short time.

In particular, since the sheet heating element can be installed by attaching the sheet heating element to the heating element installation tool fixed to the pavement portion of the installation place, the installation method of the snow melting apparatus can be simplified. Moreover, since the sheet heating element can be easily attached and detached,
It can be removed and stored in summer. Further, maintenance work such as repair or replacement of the sheet heating element can be easily performed.

According to a third aspect of the present invention, there is provided a sheet heating element having a heating element for supplying heat for snow melting, and an outer edge portion of the snow melting device fixed to a pavement portion at an installation location outside the sheet heating element. The present invention provides a method for installing a snow melting apparatus including a frame member to be formed and a finishing material for fixing a position of the planar heating element between at least the planar heating element and the frame member.

According to the present invention, in the snow melting apparatus, if current is supplied to the heating element during snowfall, the planar heating element generates heat. On the other hand, since the surface of the planar heating element is located above or at the same height as the surface of the pavement at the installation location,
The heat generated by the planar heating element immediately exerts a snow melting effect as a calorific value for snow melting, and snow melting can be performed in a short time.

In particular, a finishing material in which a sheet heating element is installed inside a frame material fixed to a pavement portion at an installation location, and the position of the sheet heating element is fixed between the sheet heating element and the frame material. Can be installed by installing the snow melting apparatus, so that the installation method of the snow melting apparatus can be simplified. In addition, even when the outer edge of the snow melting device has a different shape from the shape of the planar heating element, the snow melting device can be installed with good appearance according to the shape of the installation place, and this snow melting device has a high degree of freedom of installation. It can be.

According to a fourth aspect of the present invention, there is provided a method for installing a snow melting apparatus in which the planar heating element has a case covering an upper portion of the heating element, and the upper surface of the case has a non-slip surface finishing layer. is there.

According to the present invention, the heat generated by the heating element is efficiently supplied to the surface of the planar heating element, so that the time required for snow melting can be reduced and power can be saved. In addition, the case with a non-slip surface finish has strength against sharp objects and an effect of preventing slippage due to snow-melting water or rainwater, so that it is easy to use.

According to a fifth aspect of the present invention, there is provided a method for installing a snow melting apparatus in which a sheet heating element includes a case for covering an upper portion of a heating element, and a pavement finish is formed on at least an upper surface of the sheet heating element. It is.

In the present invention, since the upper surface of the heating element of the planar heating element is covered with a case, for example, a metal plate or a resin plate, at least the pavement surface formed on the upper surface of the planar heating element, for example, Even if the thickness of the asphalt pavement, concrete finish, etc. is relatively thin, it is possible to prevent the internal heating element from being damaged even if a heavy object such as a car comes in or if it is struck by the tip of an umbrella or a sharp object. Therefore,
Since the upper pavement finish may be thin, it can be heated to a temperature required for snow melting in a relatively short time and with a small amount of power consumption, so that snow melting performance can be exhibited. In addition, the surface can be finished with good appearance according to the shape of the installation location.

According to a sixth aspect of the present invention, there is provided a snow melting apparatus in which at least a gap between a plurality of planar heating elements or a gap between the planar heating element and a frame material is filled with a fluid material as a finishing material. Method.

According to the present invention, the gap between the planar heating elements and the gap between the planar heating element and the frame material caused by various installation states can be filled with a fluid material without any gap, and the lateral displacement of the planar heating element can be improved. And movement can be prevented, so that the whole can be installed exactly as a snow melting device. In addition, since entry and accumulation of dust can be prevented, maintenance is easy.

According to a seventh aspect of the present invention, there is provided a method of installing a snow melting apparatus in which a leveling material for flattening unevenness of an installation location is applied and a sheet heating element is installed.

According to the present invention, the unevenness of the installation location is flattened by the leveling material, so that even when a load is applied to the upper part of the planar heating element, it can be prevented from being deformed into the unevenness.
Durability of the heating element and the planar heating element can be secured.

The invention according to claim 8 is a construction method of a snow melting apparatus in which an unevenness at an installation place is flattened and an adhesive for fixing the planar heating element is applied to install the planar heating element. is there.

According to the present invention, since the adhesive flattens the unevenness of the installation location and flattens it, and the planar heating element is fixed to the installation location, even when a load is applied to the upper part thereof,
Since it is possible to prevent irregular deformation and movement of the planar heating element, it is possible to ensure the durability of the heating element, the planar heating element, and the entire structure of the snow melting apparatus formed by these elements.

[0032]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) As shown in FIG.
The sheet heating element 1 is installed on the upper surface of the pavement portion 2 and a snow melting device 15 is provided.
And from the sidewalk 41 to the entrance 4 as shown in FIG.
2 and the snow melting device laying portion 20 including the approach to the parking space 43.

As a specific construction method, first, it is confirmed that the surface of the pavement portion 2 on which the snow melting device 15 is to be installed is substantially flat, and an adhesive is applied to the entire surface to form the sheet heating element 1. It is fixed on the upper surface. Alternatively, a portion corresponding to the snow melting device laying portion 20 of the pavement portion 2 is depressed, and the sheet heating element 1 is fixed there. As a result, the sheet heating element 1 is
It is installed so that it is higher than the surface or at the same height. A plurality of sheet heating elements 1 are fixed side by side on the same plane, and a power cable 1 for supplying power thereto.
5a is drawn into the house from its surroundings, and is connected to a control device (not shown) of the snow melting device 15 inside the house. The snow melting device 15 includes a snowfall sensor for detecting the snowfall 4, a temperature sensor, and a ground temperature sensor (illustrations of the sensors are omitted) together with the control device. Manual operation can be performed at the discretion of the driver. This is the same as the conventional one.

Next, FIG. 3 shows the internal structure of the sheet heating element 1. Reference numeral 10 denotes a heating element in which heating wires that generate heat when electricity is supplied are provided at predetermined intervals. The interval between the heating wires is about 1 to 2 cm, which is smaller than that of the conventional configuration which is generally 10 to 15 cm. Reference numeral 11 denotes a metal plate case A that covers the upper portion of the heating element 10 and is in contact with the heating element 10.
Reference numeral 12 denotes a non-slip surface finish layer having fine irregularities provided on the upper surface of the case A11. 13 is a case B made of a metal plate covering the lower part of the heating element 10, and 14 is a case A
The protection member 14 has a groove on an upper surface, and the heating element 10 is mounted in the groove.

An operation method of the snow melting apparatus 15 shown in FIGS. 1 to 3 will be briefly described. It is assumed that the user determines that there is snowfall 4 and starts driving. The control device starts energization of the heating element 10 and generates heat by the case A11.
Heat. The heat capacity of the planar heating element 1 is small, and the surface temperature rises in a short time. And since it is installed so as to be exposed on the upper surface of the pavement portion 2, the continuously supplied thermal energy is used to convert the snow that reaches the surface of the planar heating element 1 into snowmelt water. Used immediately as heat of fusion. That is, snow melting is performed in a short time. If it is determined that the snowfall 4 has stopped, the operation may be stopped immediately. Of course, automatic driving can be performed based on the signal of the sensor. In any case, compared to the conventional snow melting apparatus, snow melting can be performed in a shorter time and with less power consumption.

In order to melt snow, sensible heat (2.1 kJ / kg · K) for raising the temperature of low-temperature snow,
Heat of fusion to change from snow to water (340 kJ / k
g) In addition, sensible heat (4.2 kJ / kg · K) is required to raise the temperature slightly so as not to freeze the water again. Judging from the size, the heat of fusion is an important factor. Is obvious. The reason why the melting time of the present embodiment is fast is that
The effect of the rapid supply of the heat of fusion is great.

The snowfall 4 rarely occurs continuously for 24 hours, and often falls intermittently, such as falling from night to early morning and not falling during the day. Therefore, the operation of the snow melting device 15 is often intermittent. Each time, the sheet heating element 1 is cooled once, but the reheating can be performed in a short time. For that reason, the running cost is low because the power consumption is small.

As described above, considering the entire snow season, the speed of temperature rise of the snow melting device 15 increases the efficiency of energy utilization in intermittent operation. It can be said that snow melting efficiency is high due to proper snow melting performance. That is, excellent snow melting performance is realized.

When snowmelt water or rainwater remains on the upper surface of the case A11, the non-slip surface finishing layer 12 having fine irregularities can prevent a person or an automobile from slipping carelessly. This is a snow melting device 15 that can be used safely even in other times.

As the surface finishing layer 12, a case A1
1 may be finished with a paint containing a particulate mixture which exerts an anti-slip effect (the impurities are also called aggregate). Further, the case A11 itself may be formed with irregularities.

Since the planar heating element 1 according to the present embodiment is installed above the pavement portion 2 or at the same height, the snowmelt water does not accumulate in a large amount. As the snowmelt water easily flows out to the surrounding area,
The planar heating element 1 is a snow melting apparatus having a structure capable of always heating snow on the surface.

Of course, the pavement 2 can be constructed as a snow melting apparatus without excavating the pavement 2 (if at all), so that the construction period for installation is short.

When the installation place has some irregularities, a smoothing material for flattening the unevenness is applied, and then, when the sheet heating element is installed, a load is applied to the upper part of the sheet heating element. Sometimes it can be prevented from deforming into irregularities,
The durability of the heating element and the sheet heating element can be ensured.

As described above, the installation work is simple and can be performed in a short time, and the installation cost for the installation is low, and the snow melting apparatus 15 exhibits excellent snow melting performance.

(Embodiment 2) In this embodiment, the basic configuration of a snow melting apparatus 25 in which a plurality of sheet heating elements 1 are laid is the same as that of Embodiment 1, and the description of the basic configuration will be omitted.
The second embodiment is different from the first embodiment in the installation structure of the sheet heating element 1, and the description will be focused on this difference.

As shown in FIG. 4, a metal heating element installation tool 26 having an L-shaped cross section for holding both sides of the sheet heating element 1 for supplying heat for snow melting is fixed in parallel to the pavement portion 2 at the installation location. hand,
The sheet heating element 1 is slidably and detachably attached to the pavement section 2 by the heating element installation tool 26 in a construction method.

In the snow melting apparatus 25 of the second embodiment, when the heating element 10 is energized at the time of snowfall, the sheet heating element 1 generates heat. On the other hand, since the surface of the sheet heating element 1 is located above or at the same height as the surface of the pavement portion 2 at the installation location, the heat generated by the sheet heating element 1 immediately exerts the snow melting effect as the heat for snow melting. Therefore, snow melting can be performed in a short time. In addition, the heating element mounting tool 2 fixed to the pavement portion 2 of the installation location without excavating the roadbed portion 3 or the pavement portion 2 of the installation location (even if it is excavated).
6 can be installed by attaching a sheet heating element thereto, so that the installation method of the snow melting device 25 can be simplified. Moreover, since the sheet heating element 1 can be easily attached and detached,
It is also possible to store in summer. Of course, the structure including the heating element installation tool 26 may be removed from the pavement section 2.
Also, when any of the planar heating elements 1 breaks down, maintenance work can be easily performed. In addition,
The installation state of the snow melting apparatus is as shown in FIG.

(Embodiment 3) In this embodiment, the basic configuration as a snow melting apparatus is the same as that of Embodiment 1, and the description of the basic configuration will be omitted. The third embodiment is different from the first and second embodiments in the method of installing the sheet heating element 1, and this point will be mainly described.

As shown in FIG. 6, a frame member 30 which is fixed to the pavement portion 2 at the installation location and forms the outer edge of the snow melting device is installed outside the planar heating element 1 of this embodiment. The sheet heating element 1 is fixed to the pavement 2 with an adhesive. afterwards,
A finishing material 31 for fixing the position of the planar heating element 1 between the planar heating element 1 and the frame member 30 is filled and installed as a snow melting device. The sheet heating element 1 is fixed to the pavement 2 by the effects of both the adhesive and the finishing material 31, and the entire shape is held by the frame material 30.

Although the detailed drawing of the sheet heating element 1 is omitted, as described in the sheet heating element 1 of the first embodiment,
A case A11 that covers the upper part of the heating element 10 is provided, and the surface finishing layer 12 has a non-slip effect due to fine irregularities.

Although the asphalt is selected for the finishing material 31 of the present embodiment in order to obtain strength as a parking space, rubber-based waterproof paint, concrete, or the like is used in places where vehicles do not enter. It may be. In short, the workability is excellent by mounting a member whose shape can be freely adjusted, or by filling the space between the planar heating element 1 and the frame member 30 with a fluid finish material. is there.

In this configuration, in addition to the excellent snow-melting performance similar to the first and second embodiments, there is an excellent workability that the apparatus can be installed even if there is a gap between the frame member 30 and the planar heating element 1. . As a result, as shown in FIG. 7 in this embodiment, only the approach shown in FIG. 5 in which the outer shape of the sheet heating element 1 does not match the outer shape of the snow melting apparatus as a whole, for example, from the sidewalk to the entrance in a straight line, is used. In addition, the snow melting device can be constructed even in an installation location such as an approach inclined obliquely from the sidewalk.

When the installation location has irregularities, it is flattened, an adhesive for fixing the sheet heating element is applied, and the sheet heating element is installed. And flattening, and the sheet heating element is fixed to the installation location. By doing so, even when a load is applied to the upper part, it can be deformed into irregularities,
It is clear from the present embodiment that since the planar heating element can be prevented from moving, the durability of the heating element, the planar heating element and the entire structure of the snow melting apparatus formed by these elements can be ensured.

(Embodiment 4) In this embodiment, the basic configuration as a snow melting apparatus is the same as that of Embodiment 1, and the description of the basic configuration will be omitted. The fourth embodiment is different from the first to third embodiments in the method of installing the sheet heating element 1a.
This point will be mainly described.

As shown in FIG. 8, a frame member 30 which is fixed to the pavement 2 at the installation location and forms the outer edge of the snow melting device is installed outside the sheet heating element 1a. The planar heating element 1a is fixed to the pavement 2 with an adhesive. Up to this point, it is similar to the third embodiment. Then, the sheet heating element 1a and the frame material 30
In addition to the above, the apparatus is installed as a snow melting apparatus having a pavement finish 35 formed on the upper surface of the sheet heating element 1a or the frame member 30.

As a material for the pavement finish 35, asphalt is selected in order to obtain strength as a parking space, but it is needless to say that other materials may be used in places where vehicles do not enter. . Further, the material is not limited to asphalt as long as the material can withstand the entry of the vehicle.

In this configuration, although the pavement finish 35 is formed on the upper part, the thickness is smaller than that of the conventional snow melting apparatus. Therefore, excellent snow melting performance can be exhibited. In addition, as in the third embodiment, even if there is an air gap between the frame member 30 and the planar heating element 1a, it can be installed. Therefore, as shown in FIG. In addition, it has excellent workability such that a snow melting device can be constructed even in an installation place such as an approach inclined obliquely from a sidewalk.

In particular, the pavement finish 35 covering the entire frame member 30 and the planar heating element 1 smoothes the steps from the surroundings to the snow melting device and also exhibits an effect as a protective member for each. 30 and the strength of the sheet heating element 1a are easily ensured.

Although the detailed drawing is omitted, the sheet heating element 1a is the same as the sheet heating element 1 of the first embodiment, and has a case A11 that covers the upper part of the heating element 10. However, the surface finishing layer 12 is not provided.

In each of the above embodiments, the snow melting apparatus is installed in the snow melting apparatus laying section 20 including the parking space 43 shown in FIG. 2, but the present invention is not limited to this. For example, it is needless to say that the snow melting device is not limited to the parking space 43 but can be used as an approach from the entrance 42 to the sidewalk 41 or as a snow melting device using a planar heating element installed on the stairs. Further, in such an installation place, the load applied to the sheet heating element is relatively light, and the thickness is further reduced. Is also possible.

In each of the above embodiments, the heating element 10 of the sheet heating element is heated by Joule heat generated by the heating wire. However, if the thickness of the sheet heating element is slightly increased, It goes without saying that a heating element may be heated by adopting a hot water pipe as a heating element and circulating hot water as a heat medium.

In each of the above embodiments, as the heating element 10 of the sheet heating element, a high-frequency current is supplied instead of a heating wire to directly heat the case A11 formed of a metal plate. It may be of the type.

In each of the above embodiments, case A
Although the case B is formed of a metal material, the present invention is not limited to this. Various configurations, such as a resin plate, a resin-metal multilayer plate, and a metal-metal multilayer plate, may be used as long as they protect the heating element and are thin members.

In each of the above embodiments, the snow melting device 15 is used.
Is installed above the existing pavement 2, but after the pavement 2 is excavated by the thickness of the planar heating element, the height becomes the same as the surrounding pavement. Needless to say, it may be installed by a construction method that is slightly higher.

Of course, depending on the condition of the installation location, the roadbed section 3 may be excavated, the pavement section 2 may be ground as the installation location of the planar heating element, and then the planar heating element of the snow melting apparatus may be installed. Needless to say. In any case, according to the construction method in which the upper surface of the planar heating element is positioned higher than or at the same height as the pavement portion 2 and is formed as a snow melting device, more efficient snow melting can be performed.

[0067]

Since the present invention is configured as described above, it has the following effects.

According to the first aspect of the present invention, there is provided a planar heating element having a heating element for supplying heat for snow melting, wherein the surface of the planar heating element is higher than or higher than the surface of the pavement portion at the installation location. With the construction method of the snow melting device installed so as to be located at the same height, the sheet heating element generates heat when the heating element is turned on during snowfall. At the same time, since the surface of the sheet heating element is installed above or at the same height as the surface of the pavement at the installation location, the heat generated by the sheet heating element immediately exerts its effect as the calorific value for snow melting. ,
Melt snow in a short time. Moreover, it is sufficient to install the sheet heating element without excavating the roadbed or pavement at the installation location.
The installation method can be a simple method of installing a snow melting apparatus.

According to the second aspect of the present invention, there is provided a pavement portion having a sheet heating element having a heating element for supplying heat for snow melting, and a heating element installation tool for holding the sheet heating element. The snow melting device is fixed to the heating element installation tool, and the sheet heating element is detachably installed on the pavement with this heating element installation tool. The heating element generates heat. In addition, since the surface of the sheet heating element is constructed so as to be located above or at the same height as the surface of the pavement portion at the installation location, the heat generated by the sheet heating element immediately exerts the snow melting effect as the heat for snow melting. . Therefore, snow melting can be performed in a short time, and energy consumption is small.

Then, since the sheet heating element can be installed by attaching the sheet heating element to the heating element installation tool fixed to the pavement portion of the installation place, the installation method of the snow melting apparatus can be simplified.

In particular, since the planar heating element can be easily attached and detached, it can be stored in summer. Further, maintenance work such as repairing or replacing a failed planar heating element can be easily performed.

According to the third aspect of the present invention, there is provided a sheet heating element having a heating element for supplying heat for snow melting, and the outer edge of the snow melting apparatus is formed outside the outer shape of the sheet heating element. By fixing the frame material to be installed on the pavement portion of the installation location, the construction method of the snow melting apparatus to attach a finishing material that fixes the position of the sheet heating element between at least the sheet heating element and the frame material, In a snow melting apparatus, when a heating element is energized at the time of snowfall, a planar heating element generates heat. On the other hand, since the surface of the sheet heating element is constructed so as to be located above or at the same height as the surface of the pavement portion at the installation location, the heat generated by the sheet heating element immediately exerts the snow melting effect as the heat for snow melting. Therefore, snow melting can be performed in a short time.

A finishing material for installing a sheet heating element inside a frame member fixed to the pavement portion at the installation location and fixing the position of the sheet heating element between the sheet heating element and the frame member. Can be installed by installing the snow melting apparatus, so that the installation method of the snow melting apparatus can be simplified.

In particular, even when the shape of the outer edge of the snow melting device is different from the shape of the planar heating element, the snow melting device can be installed with good appearance according to the shape of the installation location, and the freedom of installation of the snow melting device is high. Things.

According to the fourth aspect of the present invention, the planar heating element is provided with a case covering the upper portion of the heating element, and the upper surface of the case is provided with a non-slip surface finish having fine irregularities. In the planar heating element, heat generated by the heating element is efficiently supplied to the surface of the heating element, so that the time required for snow melting can be reduced and power can be saved. In addition, the case with a non-slip surface finish has strength against sharp objects and an effect of preventing slippage due to snow-melting water or rainwater, so that it is easy to use.

According to the fifth aspect of the present invention, the sheet heating element includes a case for covering the upper part of the heating element, and at least the asphalt pavement is applied to the upper surface of the sheet heating element. By doing so, the upper surface of the heating element of the sheet heating element is covered with the case, so even if the asphalt pavement applied to the upper surface of the sheet heating element is relatively thin,
The internal heating element can be prevented from being damaged by heavy objects or sharp objects. Therefore, the upper asphalt pavement can be heated to a temperature required for snow melting in a relatively short time and with a small amount of power consumption, and the snow melting performance can be exhibited.
In addition, since the asphalt pavement can be constructed relatively freely in its outer shape, the surface can be finished with a good appearance according to the shape of the installation place.

According to the sixth aspect of the present invention, as a finishing material, at least a gap between a plurality of planar heating elements or a gap between the planar heating element and a frame material is filled with a fluid material having a fluidity. With this construction method, the gap between the planar heating elements and the gap between the planar heating element and the frame material caused by various installation conditions can be filled with a fluid material without gaps, Since the lateral displacement and movement can be prevented, the entire snow melting device can be installed exactly. In addition, since entry and accumulation of dust can be prevented, maintenance is easy.

According to the seventh aspect of the present invention, the leveling material for flattening the unevenness of the installation location is applied and the snow melting apparatus is installed with the planar heating element. Since the flattening material is used for flattening, even when a load is applied to the upper part of the sheet heating element, it can be prevented from being deformed into irregularities, so that the durability of the heating element and the sheet heating element can be secured. .

According to the eighth aspect of the present invention, there is provided a method of installing a snow melting apparatus in which an uneven adhesive at an installation location is flattened and an adhesive for fixing the planar heating element is applied to install the planar heating element. By doing so, the adhesive flattens the unevenness of the installation location and flattens it, and the planar heating element is fixed to the installation location, so even when a load is applied to the upper part, it can be deformed into unevenness, Since the movement of the sheet heating element can be prevented, the durability of the heating element, the sheet heating element, and the entire structure of the snow melting device formed by these elements can be ensured.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part showing an installation structure of a snow melting apparatus according to a first embodiment of the present invention.

FIG. 2 is an external view showing an installation location of the snow melting apparatus of the first embodiment.

FIG. 3 is a sectional view of a main part of the sheet heating element of the first embodiment.

FIG. 4 is an external view of a main part showing an installation structure of a snow melting apparatus according to a second embodiment of the present invention.

FIG. 5 is an external view showing an installation location of the snow melting apparatus according to the second embodiment.

FIG. 6 is a cross-sectional view of a main part showing the installation structure of a snow melting apparatus according to a third embodiment of the present invention.

FIG. 7 is an external view showing the installation location of the snow melting apparatus of the third embodiment.

FIG. 8 is a cross-sectional view of a main part showing an installation structure of a snow melting apparatus according to a fourth embodiment of the present invention.

FIG. 9 is an external view showing an installation structure of the snow melting apparatus according to the fourth embodiment.

FIG. 10 is an external view showing an installation location of a conventional snow melting apparatus.

FIG. 11 is a cross-sectional view of a main part showing an installation structure of a conventional snow melting apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Planar heating element 2 Pavement part 3 Roadbed part 4 Snowfall 10 Heating element 11 Case A 12 Surface finishing layer 13 Case B 14 Protective member 15 Snow melting device 25 Snow melting device 26 Heating element fixture 30 Frame material 31 Finishing material 35 Pavement finish 43 parking space

Claims (8)

[Claims] 1. A surface heating element having a heating element for supplying heat for snow melting, wherein the surface of the surface heating element has a higher level or the same height as a surface of a pavement around an installation place. Installation method of snow melting equipment to be installed. 2. A heating element having a heating element having a heating element for supplying heat for snow melting, and a heating element installation tool fixed to a pavement portion at an installation location and holding the heating element, the heating element having at least a planar shape. A method for installing a snow melting device in which a heating element is detachably mounted on a pavement. 3. A planar heating element having a heating element for supplying heat for snow melting, and a frame member fixed to a pavement portion at an installation location and forming an outer edge of the snow melting apparatus outside the planar heating element. A method for constructing a snow melting apparatus, comprising: attaching a finishing material for fixing a position of a planar heating element between at least a planar heating element and a frame member. 4. The snow melting apparatus according to claim 1, wherein the planar heating element has a case covering an upper portion of the heating element, and a non-slip surface finishing layer is formed on an upper surface of the case. Construction method. 5. The snow melting apparatus according to claim 1, wherein the sheet heating element includes a case that covers an upper portion of the heating element, and a pavement finish is formed on at least an upper surface of the sheet heating element. Construction method. 6. The finishing material according to claim 1, wherein at least a gap between a plurality of sheet heating elements or a gap between the sheet heating element and the frame material is filled with a fluid material. The construction method of the described snow melting apparatus. 7. The method for constructing a snow melting apparatus according to claim 1, wherein a flattening element is installed by applying a leveling material for flattening the unevenness of the installation location. 8. The snow melting apparatus according to claim 1, wherein the unevenness of the installation location is flattened and an adhesive for fixing the planar heating element is applied to install the planar heating element. Construction method.