JP5798583B2 - Snow removal system and snow removal method - Google Patents

Description

  The present invention relates to a snow removal system and a snow removal method.

  Conventionally, when snow has accumulated on the ground, the rooftop, etc., snow removal work using human power or a snow removal machine has been performed. In addition, a snow melting sheet that generates heat by energization or warm water has been laid in advance in a place where it is desired to avoid snow accumulation.

  For example, Patent Document 1 is a snow removal sheet installed on a roof, and includes a planar heating element and a coating layer that covers a surface on the snow accumulation side of the planar heating element. A snow removal sheet characterized in that the surface on the snow cover side is made of a fluororesin film is disclosed.

  Further, in Patent Document 2, tubular hot water flow paths and flat mounting bases are alternately arranged and integrally formed, and the tubular hot water flow path has a larger part of the outer peripheral surface than the flat mounting base. Also disclosed is a snow-melting sheet that is exposed to the upper side so as to be in direct contact with snow.

JP 2008-269662 A JP 2002-088730 A

  However, manual snow removal requires a lot of manpower and time. For this reason, for example, when applied to a vast sports field such as a soccer field, a racetrack or the like, work costs and work time are remarkably increased. In addition, snow removal machines such as snowplows are not suitable for snow removal in sports fields and the like because they may damage the snow removal surface and surrounding facilities. Also, in areas where the amount of snow accumulation is small (for example, the southern part of the Kanto region), sufficient snow removal machines are not prepared, and it may take a long time to complete the snow removal.

  Further, the snow melting sheets described in Patent Documents 1 and 2 have a problem that the material cost and the manufacturing cost increase because a planar heating element and a hot water flow path are necessary. In addition, these snow melting sheets require energization and water flow, which has a problem of increasing running costs. Therefore, it was not suitable for a vast sports field such as a soccer field or a racetrack.

  The present invention has been made in view of these circumstances, and it is an object of the present invention to provide a snow removal system and a snow removal method capable of promoting snow removal with a simple configuration without affecting the snow removal surface and surrounding facilities. And

The present invention is a snow removal system comprising a snow accumulation layer made of snow that has fallen on a base surface, and a snow melting sheet that is installed on the surface of the snow accumulation layer and that melts the snow accumulation layer by being heated by sunlight. The snow melting sheet is a dark color having a lightness of 0% or more and less than 50%, and is a woven fabric that can be used repeatedly, which is formed by plain weaving or twilling a polypropylene or polyester yarn, and there is a gap between the yarns. A snow removal system that functions as a plurality of through holes .
Further, the present invention is a woven fabric that has a lightness of 0% or more and less than 50%, and is a woven fabric that can be used repeatedly, which is formed by plain weaving or twilling a polypropylene or polyester yarn, and there is a gap between the yarns. A snow removal method using a snowmelt sheet functioning as a plurality of through holes , wherein the snowmelt sheet is installed on the surface of a snow accumulation layer made of snow that has fallen on a base surface, and the snowmelt sheet is heated by sunlight. A snow removal method comprising melting a snow accumulation layer and then collecting and storing the snow melting sheet .

According to this configuration and method, the surface of the snow layer made of snow that has fallen on the base surface is formed by plain weaving or twill weaving of a yarn having a lightness of 0% or more and less than 50% and made of polypropylene or polyester. Is a woven fabric that can be used repeatedly, and installs a snow melting sheet in which the gaps between the threads function as a plurality of through holes, and melts the snow accumulation layer by heating the snow melting sheet with sunlight. There is no need to remove snow with a snow removal machine. Moreover, since sunlight is used, a planar heating element and a hot water flow path are not required, so that it is possible to simplify the snow melting sheet and reduce manufacturing costs and running costs. Therefore, it is possible to promote snow removal with a simple configuration without affecting the snow removal surface and surrounding facilities.
Moreover, since the said snow-melting sheet is a dark color whose brightness is 0% or more and less than 50%, the heat generation of the snow-melting sheet and the melting of the snow accumulation are promoted by suppressing the reflection of sunlight and efficiently absorbing energy. Can do.
Moreover, since the said snow melting sheet | seat functions as a some through-hole, the crevice of lawn can be suppressed by promoting evaporation of a water | moisture content from a some through-hole.

Further, the present invention is a snow removal system comprising a snow accumulation layer made of snow that has fallen on a base surface, and a snow melting sheet that is installed on the surface of the snow accumulation layer and melts the snow accumulation layer by being heated by sunlight. The snow melting sheet is a dark color having a lightness of 0% or more and less than 50% and is formed of a non-woven fabric that can be used repeatedly, and the gaps in the non-woven fabric function as a plurality of through holes and function as a heat retaining layer. This is a snow removal system.
Further, the present invention is a dark color having a lightness of 0% or more and less than 50%, and is formed of a non-woven fabric that can be used repeatedly, and the gap in the non-woven fabric functions as a plurality of through holes and functions as a heat retaining layer. A snow removal method using a sheet, wherein the snow melting sheet is installed on a surface of a snow layer made of snow that has fallen on a base surface, the snow melting sheet is melted by heating the snow melting sheet with sunlight, and then A snow removal method for collecting and storing the snow melting sheet.

  According to the present invention, it is possible to provide a snow removal system and a snow removal method capable of promoting snow removal with a simple configuration without affecting the snow removal surface and surrounding facilities.

It is sectional drawing of the snow removal system which concerns on this embodiment.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the description, the same elements are denoted by the same reference numerals, and redundant description is omitted.

FIG. 1 is a cross-sectional view of the snow removal system according to the present embodiment.
As shown in FIG. 1, the snow removal system 10 includes a snow accumulation layer 2 made of snow that has fallen on the base surface 1, and a snow melting sheet 3 installed on the surface of the snow accumulation layer 2.

  The base surface 1 is a reference surface to be exposed by snow removal. In the present embodiment, the lawn g grows on the surface of the base surface 1. Since the snow removal system 10 according to the present embodiment does not use a snow removal machine such as a heavy machine, there is no possibility of damaging the lawn g.

  In addition, although the base surface 1 is not specifically limited, For example, during a period required for snow removal, such as a sports field such as a soccer field, a baseball field, a golf field, an athletic field, or a racetrack, A place where usage can be restricted is suitable.

  The snow accumulation layer 2 is a layer in which snow accumulates on the base surface 1 in a layered manner. The snow quality and thickness of the snow layer 2 are not particularly limited. The snow accumulation layer 2 may be naturally deposited or may be accumulated at a predetermined location by a snow removal machine or the like.

  The snow melting sheet 3 is a sheet-like or mat-like member installed so as to cover the surface of the snow accumulation layer 2. The snow melting sheet 3 is colored or dyed in a color that is easily warmed by sunlight L. Here, the color that is easily warmed by sunlight L is a dark color having a lightness of 0% to less than 50%, and more preferably black. If it does in this way, the energy of sunlight L can be absorbed efficiently and snow removal can be promoted.

  The snow melting sheet 3 has a plurality of through holes 3a. As a result, evaporation of melted snow is promoted, and lawn growing damage due to stuffiness can be suppressed.

  Although the material of the snow melting sheet 3 is not specifically limited, For example, the woven fabric and vinyl sheet which become the material of a sandbag bag can be used. In particular, the woven fabric used as the material for the sandbag is formed by plain weaving or twilling of polypropylene or polyester yarn, and the gap between the yarns can function as the above-described through hole 3a. For example, when the snow melting sheet 3 is composed of a non-woven fabric (felt), the voids in the non-woven fabric function as the above-described through-holes 3a and function as a heat insulating layer that suppresses refreezing.

  The snow removal system 10 according to the present embodiment is basically configured as described above. Next, a snow removal method using the snow removal system 10 according to the present embodiment will be described.

  The operator installs the snow melting sheet 3 so as to cover the surface of the snow accumulation layer 2 after the snow stops. Further, the operator places a weight (for example, sandbag) (not shown) at an appropriate position on the snow melting sheet 3 so that the snow melting sheet 3 is not blown by the wind.

  And when the sunlight L hits the snow melting sheet 3, the snow melting sheet 3 warms and the snow layer 2 under it melts. At this time, since the snow melting sheet 3 has a color (for example, black) that is easily warmed by the sunlight L, the snow layer 2 can be efficiently warmed.

  The water generated by the melting of snow flows over the base surface 1 and is discharged or evaporates through the through hole 3a. Thereby, the growth damage by the steaming of the lawn g of the base surface 1 can be suppressed.

  As described above, according to the snow removal system 10 and the snow removal method using the snow removal system 10 according to the present embodiment, the snow layer 2 is efficiently melted with a simple configuration and method in which the snow melting sheet 3 is installed on the snow layer 2. Therefore, snow removal can be promoted as compared with the case where the snow melting sheet 3 is not installed.

  Further, in this embodiment, since it is not necessary to use a snow removal machine, for example, even when a lawn g is growing on the base surface 1, snow removal can be performed without adversely affecting the base surface 1. Therefore, it is possible to efficiently remove snow from sports fields such as soccer fields, baseball fields, golf courses, and athletic fields, and racetracks.

  Moreover, in this embodiment, since sunlight is used, it is not necessary to use electricity or warm water, so the environmental load can be reduced. In addition, since it is not necessary to provide the snow melting sheet 3 with a heating element that generates electricity or a flow path for warm water, the material cost and manufacturing cost of the snow melting sheet 3 can be suppressed, and the running cost is also substantially zero. can do.

  Further, if the snow melting sheet 3 is folded and wound after being stored after the snow layer 2 is melted, it can be used repeatedly at the next snow accumulation.

  As mentioned above, although embodiment of this invention was described in detail with reference to drawings, this invention is not limited to this, In the range which does not deviate from the main point of invention, it can change suitably.

  For example, in the present embodiment, a lawn surface on which the lawn g grows is assumed as the base surface 1, but the present invention is not limited to this, and may be used for removing snow on the rooftop of a building, for example.

  Moreover, in this embodiment, although the several through-hole 3a was provided in the snow melting sheet 3, this invention is not limited to this, You may abbreviate | omit the through-hole 3a.

DESCRIPTION OF SYMBOLS 1 Base surface 2 Snow layer 3 Snow melting sheet 3a Through-hole 10 Snow removal system L Sunlight g Lawn

Claims (5)

A snow removal system comprising a snow layer made of snow that has fallen on a base surface, and a snow melting sheet that is installed on the surface of the snow layer and that melts the snow layer by being heated by sunlight ,
The snow-melting sheet is a dark color having a lightness of 0% or more and less than 50%, and is a woven fabric that can be repeatedly used formed by plain or twill weave of polypropylene or polyester yarns, and there are a plurality of gaps between the yarns. A snow removal system that functions as a through-hole . A snow removal system comprising a snow layer made of snow that has fallen on a base surface, and a snow melting sheet that is installed on the surface of the snow layer and that melts the snow layer by being heated by sunlight,
The snow melting sheet is a dark color having a lightness of 0% or more and less than 50% and is formed of a non-woven fabric that can be used repeatedly, and the gap in the non-woven fabric functions as a plurality of through holes and functions as a heat retaining layer. Features a snow removal system. The base surface is snow removal system according to claim 1 or claim 2, characterized in that a grass surface that grass is growing. It is a dark color with a lightness of 0% or more and less than 50%, and is a woven fabric that can be used repeatedly by plain or twill weaving polypropylene or polyester yarns, and the gaps between the yarns function as a plurality of through holes A snow removal method using a snow melting sheet,
Installing said snow melting sheet on the surface of the snow layer made of snow Furitsumo' on the base surface, the snow layer melted by warming the snow melting sheet sunlight, it stores and then collecting the snow melting sheet A snow removal method characterized by. A snow removal method using a snow-melting sheet that is formed of a non-woven fabric that has a lightness of 0% or more and less than 50% and can be used repeatedly, and in which the gaps in the non-woven fabric function as a plurality of through holes and function as a heat retaining layer Because
The snow melting sheet is installed on the surface of the snow accumulation layer made of snow that has fallen on the base surface, the snow melting sheet is melted by heating the snow melting sheet with sunlight, and then the snow melting sheet is recovered and stored. A snow removal method characterized by.

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