JP2008175047A - Rain gutter snow melting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide snow melting technique, simplifying construction, inexpensive, and lowering running cost by holding down heat loss to equalize heat radiation balance in a rain gutter snow melting device for eliminating icicle, snow eaves, slush leakage and freezing of a down pipe. <P>SOLUTION: This rain gutter snow melting device includes: an eaves gutter for receiving rainwater from a roof; an eaves gutter cover for covering an upper opening of the eaves gutter to cause secondary convection of hot air; a convection cover for causing primary convection of hot air inside the eaves gutter cover; the down pipe connected to the eaves gutter to discharge rainwater; and a hot air generator for supplying hot air to the down pipe. The cold air passes through the hot air generator to become hot air, which flows to the eaves gutter through the down pipe. The hot air which has flowed into the eaves gutter causes convection in the convection cover to spread to the bottom of the eaves gutter, and further it spreads to the space made by the eaves gutter cover and the eaves gutter, so that hot air is jetted from a rainwater inlet of the eaves gutter cover. Snow melting is caused by jet of hot air to prevent the generation of icicle and snow eaves of the roof. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a snow melting device using a rain gutter that prevents icicles and snow leopards generated at the eaves of a roof in a snowy country, and at the same time, prevents freezing of the gutters.

In patent document 1, the heat generating body is put in the bag for ice prevention. In Patent Document 2, there is a warm-air ventilation layer under the hail, and warm air is blown out from the top of the gutter to melt the rain gutter snow. In Patent Document 3, the warming of the room is promoted by using a duct and a cover to melt snow on the side of the snow-free roof. In Patent Document 4, snow melting on the folded plate roof is performed using the heat of the drain pipe heater. Also, snowmelt devices using rain gutters devised by the present applicant are known. (Patent Document 5)
JP 2002-294947 A JP-A-11-324256 JP 08-284342 A JP 2006-291549 A Actual climbing 312398

  More than 80% of roof snow damage can be resolved by preventing snow traps and icicles at the eaves. In addition, snow melting by heat such as conventional electric heaters and hot water has high energy costs. The existing method of convection of warm air using a gutter is intended for freezing the gutter, not for melting snow at the eaves. The present invention aims to provide technology that is simple and low-cost construction and low in running cost, in addition to preventing rain gutters from freezing and icicles, as well as preventing snow melting and debris leakage at eaves, and freezing gutters. And In the method using the rain gutter cover devised by the present applicant, it cannot be said that the balance between heat radiation and heat loss is sufficient. The present invention improves the problem of suppression of heat loss and the balance of heat dissipation in melting snow using rain gutters, and more effectively demonstrates its function.

The snow melting device using rain gutters according to the present invention includes an eaves for receiving rainwater from the roof, an eaves eaves cover for closing the upper opening of the eaves and for secondarily convection, and warm air inside the eaves eaves cover. Next, the convection cover, which has a heat shield on the inside and has a water collecting hole on the side, and a tub that is connected to the eaves and collects and drains rainwater from the eaves And a hot air generator for supplying warm air. If necessary, a convection cover with built-in eaves heater can be installed.
The cold air sucked in by the fan from the intake port becomes warm air as it passes through the hot air generator, and prevents the firewood from freezing and flows to the eaves through the firewood. The warm air that flows into the eaves circulates in the convection cover on the bottom of the eaves and reaches the bottom of the eaves, and further spreads from the water collecting hole of the convection cover to the space made by the eaves cover and eaves. Warm air blows out from the rainwater entrance of the eaves cover. The warm air blows out snow, which makes it impossible to create a roof icicle or snow plow. The convection cover should be used with a short water collecting hole at a location close to the reed or eaves heater, and a long water collecting hole at a location away from the reed or eaves heater. Balance heat dissipation. If the heat from the firewood is insufficient, a convection cover with eaves heater is attached to supply heat. The eaves heater used in the present invention and the heating element of the hot air generator use a heater of 100 volts and a small amount of electricity.

  According to the present invention, no snow leopard or icicle can be formed at the eaves, and no debris leaks. In addition, by taking in warm air from the soot, it prevents the soot from freezing at the same time. Since the present invention utilizes a commercially available gutter, the construction is also simple and does not require construction costs compared to the conventional method. In addition, remodeling is easy because it can be applied to existing rain gutters. The voltage is 100 volts and there is no need for a special electric contract. Only electricity is used at the spot where hot air is generated, and there is no need for a special high temperature.

An embodiment of the snow melting device of the present invention will be described below with reference to the accompanying drawings.
As shown in FIG. 2, the rain gutter melting apparatus of the present invention includes an eaves fence 1 that receives rainwater from the roof, an eaves enclosure cover 3 that closes the upper opening of the eave fence 1 and convects warm air secondarily, As shown in FIG. 3, a convection cover 4 that primarily convects warm air inside the eaves eaves cover 3, and as shown in FIG. It is composed of a gutter 2 that collects rainwater and drains it from the rainwater outlet 10, and a hot air generator 6 that supplies warm air to the gutter 2.

    The eaves bowl 1 is formed of a semi-cylindrical body having an upper opening shape made of synthetic resin and having a width of 105 mm. As shown in FIG. As shown, at least one eave ridge 1 having a water collector 7 for connection with the ridge 2 is provided. The material of the eaves 1 is not limited to resin, and the shape is not limited to a semi-cylinder.

  The convection cover 4 shown in FIG. 4 is composed of a U-shaped steel plate 16 having a width of 60 mm and a height of 30 mm, and a heat shielding material 11 that is attached to the inside of the steel plate 16 to suppress heat loss. The heat shield 11 uses reflexics. Further, the water collecting hole shown in FIG. The shape of the water collecting hole 12 is not limited to a rectangle, and may be a shape as shown in FIG.

  6 and 7, there is also a convection cover 5 with a heater with an eaves heater 13 on the ceiling inside the convection cover, and when the side wall is long and the warm air does not reach the end sufficiently, the convection cover 5 with a heater is attached. . As shown in FIG. 6, the eaves heater 13 has a heat shield 11 attached to an aluminum square pipe 14 having a width of 40 mm, an outer height of 10 mm, and a thickness of 3 mm, and a heating element 15 built in the aluminum square pipe 14. ing. The side surface has a shape as shown in FIG. 7 and a length of 800 mm. The eaves heater 13 is fixed to the ceiling of the inner cover. The heating element 15 of the eaves heater 13 is a 100 volt PTC ceramic heater, and the convection cover 5 with a heater has a temperature outside the ceiling of about 40 degrees to an upper limit of about 50 degrees.

  As shown in FIG. 10, a convection cover having a pitch of the water collecting holes 12 as shown in FIG. 8 of 150 mm is attached at a position close to the water collector 7 and the convection cover 5 with a heater. At a position far from 5, a convection cover having a pitch of the water collecting holes 12 as shown in FIG.

  As shown in FIG. 11, the air that has entered through the air inlet 22 of the hot air generator 6 is drawn in by the fan 23 from the air inlet 21, passes through the heating element 24 that is fixed by the heat-resistant resin support plate 27, and warm air. And is supplied from the connecting pipe 26 to the bowl 2. A fuse 28 is attached to the electric cord 25 to stop energization when an abnormal current flows. The heater of the heating element 24 is a 100 volt PTC ceramic heater. The electric cord 25 is connected to an electric switch inside the power supply box 30, and energization is controlled by the temperature sensor 31.

Front view showing the gutter melting device of the present invention Front view of the eaves of the present invention Cross section of the eaves of the present invention Cross section of convection cover Convection cover water collecting hole shape Cross section of convection cover with heater Side view of convection cover with heater Side view of convection cover with long water collecting hole pitch Side view of convection cover with short pitch of water collecting holes Installation drawing of convection cover Detailed view of hot air generator

Explanation of symbols

1 eaves 2 eaves 3 eaves cover 4 convection cover 5 convection cover with heater 6 hot air generator 7 water collector 8 rim 9 rain water inlet 10 rain water outlet 11 heat shield 12 water collecting hole 13 eaves heater 14 aluminum corner Pipe 15 Heating element 16 Steel plate 21 Air inlet 22 Air inlet hole (Housing box hole)
23 Fan 24 Heating element 25 Electric cord 26 Connecting pipe 27 Support plate 28 Fuse 29 Power supply box 30 Temperature sensor

Claims (6)

  In a snow melting device that eliminates freezing of icicles, snow fences and fences on snowy country roofs, an eaves fence that receives rainwater from the roof, a convection cover that primarily convects warm air over the bottom of the eave fence, and It is composed of an eaves fence cover that closes the upper opening and prevents dust from entering the eaves from outside and convects the warm air secondarily, and a hot air generator that is joined to the eaves and supplies the warm air A rain gutter snow melting device characterized by   A convection cover placed on the bottom of an eaves basket according to claim 1, wherein a convection cover with a kite heater on the inside can be installed. In the shape of the convection cover placed on the bottom of the eaves of claim 1, there is a hole in the lower part of the side surface for collecting rain and exhausting warm air. The shape of the hole is rectangular and the height is about 5 mm. A raindrop melting snow characterized by being a cover with a hole that is less than that height and does not collect dust at a minimum, and has a horizontal length sufficient for taking in the rainwater. apparatus. The shape of the hole may be a trapezoidal shape or a semi-elliptical shape that spreads as long as dust does not accumulate.   3. A rain gutter snow melting device characterized by being a convection cover in which a heat shielding material or a heat insulating material is attached to the inside of the convection cover to suppress heat radiation and heat loss from other than the holes.   A cover placed on the bottom of the eaves bowl according to claim 1, wherein the hole in the lower part of the side face is close to the eaves and the eaves heater according to claim 2, and the cover with a small cross-sectional area of each hole is A rain gutter snow melting device characterized in that a cover with a large cross-sectional area of each hole is mounted at a position far from the rain. In the cover placed on the bottom of the eave wall of claim 1, the cover having a small number of holes is far from the eaves and the eaves heater when the hole in the lower side is close to the eaves and the eaves heater of claim 2. A rain gutter snow melting device characterized in that a cover with a large number of holes is attached at the position.