JP7180877B2 - Snow cornice prevention tool and snow cornice prevention tool installation method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a snow cornice preventive tool for preventing the formation of cornices and a method for installing the same.

Road sign installation methods include the roadside type, cantilever type, gate type, and mounting type. Of these, the gate type is a method in which a sign board is installed above the roadway with a gate-shaped support that straddles the road. See Non-Patent Document 1). In such a gate-shaped support, snow cornices are formed due to snowfall during the winter, and there is a risk that falling snow and ice may cause traffic problems. Therefore, for example, a snow cornice prevention device having a pair of sloped portions that are sloped upward to approach each other is installed on a gate-shaped post (see, for example, Patent Document 1). This cornice prevention device is, for example, placed on a gate-shaped support, and then fixed by spraying polyurethane resin on the snow cornice prevention device and the gate-shaped support.

Japanese Patent No. 5569979

Ministry of Land, Infrastructure, Transport and Tourism, Road Bureau website How to install road signs (http://www.mlit.go.jp/road/sign/sign/index.htm)

However, in the conventional method, since the polyurethane resin is sprayed and fixed at the installation site, there is a problem that the number of days of traffic regulation increases because there is work that requires intervals between painting. In addition, there is also the problem that curing work to prevent scattering is difficult when applying the paint, and that the work is costly and time consuming. Furthermore, there is also the problem that the painting work is difficult to proceed because it depends on the season and the weather, such as when the temperature is 5° C. or higher, the humidity is 85% or less, and it is not raining.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a snow cornice prevention device that can be easily installed in a short period of time and a method for installing the snow cornice prevention device.

The snow cornice prevention tool of the present invention is arranged on a lateral support section for supporting the sign board above the roadway in the sign installation pole on which the sign board is installed. A slanting member having a pair of slanted portions that are slanted toward each other upward and a bottom portion that is disposed against the horizontal strut portion; It comprises a fixing member for fixing the tilting member to the lateral strut portion using magnetic force, and a covering layer made of polyurethane resin provided corresponding to the tilting portion of the tilting member.

A method for installing a snow cornice preventive device according to the present invention is to dispose the snow cornice preventive device on a lateral strut portion that supports the sign plate on the roadway in the sign installation pole on which the sign plate is installed. A sheet-like member containing a magnet is attached to the bottom of a slanted member made of polystyrene foam having a pair of slanted portions that are slanted so as to approach each other upward from the bottom and a bottom portion disposed against the horizontal strut portion. A fixing member is arranged, polyurethane resin is sprayed corresponding to the inclined part of the inclined member to form a coating layer, and a procedure for forming a snow cornice prevention device, and after forming the snow cornice prevention device, the magnetic force of the fixing member and a procedure for fixing the snow cornice prevention device to the horizontal strut portion by using the

According to the present invention, since the fixing member for fixing the inclined member to the horizontal strut portion using magnetic force is provided, at the installation site, the fixing member can be attracted to the horizontal strut portion using magnetic force. The snow cornice prevention tool can be easily fixed. Therefore, it is possible to greatly shorten the work time at the site, eliminate the need for curing work, and greatly shorten the period of traffic regulation. Therefore, construction costs can be greatly reduced, and traffic congestion and safety due to traffic regulations can be improved. In addition, on-site work is less affected by seasons and weather, so work can proceed smoothly.

In particular, the fixing member has a main body provided at the bottom of the inclined member and reinforcements provided continuously on both sides of the main body, and covers 75% or more of the lateral struts in the outer peripheral direction. Alternatively, the fixing member has a body portion provided at the bottom portion of the inclined member, and a reinforcing portion provided so as to continuously cover the outer peripheral surfaces of the inclined portion and the lateral strut portion of the inclined member, By covering 75% or more of the lateral strut portion in the outer peripheral direction, the snow cornice prevention device can be more firmly fixed to the lateral strut portion.

It is a figure showing the state which arrange|positioned the snow cornice prevention tool which concerns on the 1st Embodiment of this invention to a sign installation pole. FIG. 2 is a cross-sectional view of the snow cornice protector shown in FIG. 1 taken along line II. It is a figure showing the cross-sectional structure of the snow cornice prevention tool which concerns on the 2nd Embodiment of this invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 shows a state in which a snow cornice prevention device 10 according to the first embodiment of the present invention is arranged on a sign installation pillar 20, and FIG. This is an enlarged view of the cross-sectional structure. This snow cornice prevention tool 10 is arranged on a sign installation pole 20 on which a sign plate 21 is installed. This sign installation pole 20 is, for example, of a gate type in which a sign board 21 is installed above the roadway 22 by means of a gate-shaped post 23 straddling the roadway 22 . The gate-shaped struts 23 are, for example, arranged on the roadway 22 to support the sign plate 21 on the roadway 22, and built on both sides of the roadway 22 to support the lateral struts 23A. It has a vertical strut portion 23B. The horizontal strut portion 23A and the vertical strut portion 23B are formed of, for example, cylindrical steel pillars, and the snow cornice prevention device 10 is arranged on the horizontal strut portion 23A, for example.

The snow cornice prevention device 10 includes an inclined member 11 having a pair of inclined portions 11A that are inclined upward from the lateral strut portion 23A so as to approach each other, and a bottom portion 11B that is disposed on the lateral strut portion 23A. I have. The inclined portion 11A is formed along the length direction of the horizontal strut portion 23A, and the upper end portions of the pair of inclined portions 11A are joined to each other. Further, it is preferable that the inclined portion 11A is configured to be tangential to the horizontal strut portion 23A when viewed in a cross section perpendicular to the length direction of the horizontal strut portion 23A.

The inclination angle θ of the inclined portion 11A is preferably 65 degrees or more. This is because by setting the inclination angle θ to 65 degrees or more, the snow can naturally fall off while the amount of accreted snow is small. Further, the inclination angle θ of the inclined portion 11A is more preferably 80 degrees or less, and even more preferably 70 degrees or less. This is because if the inclination angle θ is too large, there is a risk that the inclined portion 11A may be broken by wind or the like. The inclination angle .theta. of the inclined portion 11A is the angle between the horizontal and the snow cornice prevention device 10 when the snow cornice prevention tool 10 is installed on the sign installation post 20. As shown in FIG.

The bottom portion 11B of the inclined member 11 is formed, for example, curved upward in an arc shape corresponding to the horizontal strut portion 23A. The inclined member 11 is preferably made of foamed polystyrene, for example. This is because foamed polystyrene is a heat insulating material, so even if it snows on it, it does not get cold easily, and the snow that has accreted on it melts and is easy to fall off.

The snow cornice prevention tool 10 is also provided with a fixing member 12 which is arranged on the bottom portion 11B of the inclined member 11 and which is a sheet-like member containing a magnet. The fixing member 12 is for fixing the inclined member 11 to the horizontal strut portion 23A using magnetic force. The fixed member 12 includes a main body portion 12A interposed between the bottom portion 11B of the inclined member 11 and the horizontal strut portion 23A, and continuously provided on both sides of the main body portion 12A in the outer peripheral direction of the horizontal strut portion 23A. and a reinforcing portion 12B that is exposed from the inclined member 11 and covers the outer peripheral surface of the lateral strut portion 23A. This is because the inclined member 11 can be firmly fixed to the horizontal strut portion 23A. The inclined member 11 and the fixed member 12 are adhered with an adhesive, for example. Sheet-like members containing magnets include, for example, magnet sheets. It is preferable that the thickness of the fixing member 12 is, for example, about 0.8 mm to 2.0 mm.

It is preferable that the length of the lateral strut portion 23A of the fixing member 12 in the outer peripheral direction is, for example, 75% or more of the outer periphery of the lateral strut portion 23A. That is, it is preferable that the fixing member 12 is configured to cover 75% or more of the outer circumference of the lateral strut portion 23A in the outer peripheral direction of the lateral strut portion 23A. In addition, the length of the lateral strut portion 23A of the fixing member 12 in the outer peripheral direction is more preferably 90% or more of the outer periphery of the lateral strut portion 23A, more preferably 98% or more, and may be covered.

The cornice prevention device 10 further includes a covering layer 13 made of polyurethane resin and provided corresponding to the inclined portion 11A of the inclined member 11. As shown in FIG. This is to prevent deterioration of polystyrene foam over time. It is preferable that the thickness of the coating layer 13 is, for example, about 1 mm to 3 mm. In addition to the inclined portion 11A, the coating layer 13 is provided continuously on at least a portion of the surface of the fixing member 12 exposed from the inclined member 11, that is, at least a portion of the surface of the reinforcing portion 12B. is preferred. This is to firmly fix the inclined member 11 to the fixed member 12 . For example, it is preferable that the coating layer 13 is provided so as to extend at least to the position of a horizontal line passing through the center of the horizontal strut portion 23A in the outer peripheral direction of the horizontal strut portion 23A.

This snow cornice prevention tool 10 is arranged, for example, on the sign installation pole 20 as follows. First, for example, in a factory or the like, after the fixing member 12 is adhered to the bottom portion of the inclined member 11 with an adhesive or the like, polyurethane resin is sprayed on the inclined portion 11A of the inclined member 11 to cover the coating layer 13. Forming to form the snow cornice prevention device 10 . The configurations of the inclined member 11, the fixed member 12, and the coating layer 13 are as described above. Moreover, as described above, the covering layer 13 is preferably formed continuously so as to cover at least part of the reinforcing portion 12B from the inclined portion 11A. Next, the formed snow cornice prevention device 10 is transported to the installation site, and the fixing member 12 is adhered to the lateral strut portion 23A by being attracted to it using magnetic force, and the snow cornice prevention device 10 is fixed to the lateral strut portion 23A. .

As described above, according to the present embodiment, since the fixing member 12 for fixing the inclined member 11 to the lateral strut portion 23A using magnetic force is provided, the fixing member 12 can be attached to the lateral strut portion 23A at the installation site. The snow cornice prevention tool 10 can be easily fixed by attracting it using magnetic force. Therefore, it is possible to greatly shorten the work time at the site, eliminate the need for curing work, and greatly shorten the period of traffic regulation. Therefore, construction costs can be greatly reduced, and traffic congestion and safety due to traffic regulations can be improved. In addition, on-site work is less affected by seasons and weather, so work can proceed smoothly.

In particular, the fixed member 12 has a main body portion 12A provided on the bottom portion 11B of the inclined member 11 and reinforcing portions 12B provided continuously on both sides of the main body portion 12A. By covering 75% or more, the snow cornice prevention device 10 can be fixed more firmly to the horizontal strut portion 23A.

(Second embodiment)
FIG. 3 shows an enlarged cross-sectional structure of the snow cornice prevention device 30 according to the second embodiment of the present invention along line II. As in the first embodiment, this snow cornice prevention tool 30 is arranged on the sign installation pillar 20 on which the sign plate 21 is installed, and the horizontal strut portion 23A is formed of a steel square cylinder pillar. suitable for the occasion. This cornice prevention tool 30 includes an inclined member 31, a fixing member 32, and a covering layer 33, like the snow cornice prevention tool 10 of the first embodiment. Note that constituent elements corresponding to those in the first embodiment are described with reference numerals with the tens digit changed to 3. FIG.

The inclined member 31 has the same configuration as the inclined member 11 of the first embodiment, except that the shape of the bottom portion 31B is different. The bottom portion 31 is flat to match the upper surface of the horizontal strut portion 23A, and the length of the horizontal strut portion 23A in the outer peripheral direction is preferably the same as the length of the upper surface of the horizontal strut portion 23A.

The fixing member 32 includes, for example, a main body portion 32A interposed between the bottom portion 11B of the inclined member 11 and the lateral strut portion 23A, and the outer peripheral surfaces of the inclined portion 31A of the inclined member 31 and the lateral strut portion 23A. It is preferable to have a reinforcing portion 32B provided so as to cover continuously. This is to firmly fix the inclined member 31 to the horizontal strut portion 23A. In particular, when the horizontal strut portion 23A is a rectangular column, compared with the case of a cylindrical column, the bottom portion 31B of the inclined member 31 is flat, so the fixing force on the main body portion 32A is weak. It is preferable to continuously cover a portion of the outer peripheral surface of the lateral strut portion 23A. Otherwise, it has the same configuration as the fixing member 12 of the first embodiment.

The covering portion 33 is preferably formed so as to cover the entire surface of the reinforcing portion 32B of the fixing member 32, for example. Otherwise, it has the same configuration as the covering portion 13 of the first embodiment.

This snow cornice prevention tool 30 can be constructed in the same manner as in the first embodiment. Also, the same effect as in the first embodiment can be obtained.

Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above embodiments and can be variously modified. For example, in the above-described second embodiment, the case where the horizontal strut portion 23A is a steel rectangular column has been described, but it can also be applied when it is a cylindrical column. Further, in the above-described embodiment, the case where the inclination angles θ of the pair of inclined portions 11 are the same has been described, but they may be different as long as the inclination angles θ are within the range of the above-described inclination angles θ. Furthermore, in the above-described embodiment, the gate-type sign installation pole 20 has been described, but other methods can also be applied.

It can be used for sign installation poles.

DESCRIPTION OF SYMBOLS 10, 30... snow cornice prevention tool, 11, 31... slope member, 11A, 31A... slope part, 11B, 31B... bottom part, 12, 32... fixing member, 12A, 32A... body part, 12B, 32B... reinforcement part, 13 , 33... Coating layer, 20... Sign installation pillar, 21... Sign board, 22... Roadway, 23... Portal support, 23A... Horizontal support, 23B... Vertical support

Claims (4)

A snow cornice prevention device disposed on a horizontal support part that supports the sign plate on the roadway in the sign installation pole on which the sign plate is installed,
an inclined member made of polystyrene foam and having a pair of inclined parts inclined upward from the lateral strut part so as to approach each other; and a bottom part disposed with respect to the lateral strut part;
a fixing member disposed on the bottom portion of the inclined member, made of a sheet-like member containing a magnet, and fixing the inclined member to the lateral strut portion using magnetic force;
and a covering layer made of polyurethane resin provided corresponding to the inclined portion of the inclined member. The fixing member comprises a main body portion interposed between the bottom portion of the inclined member and the horizontal strut portion, and continuously provided on both sides of the main body portion in the outer peripheral direction of the horizontal strut portion, a reinforcing portion exposed from the inclined member and covering an outer peripheral surface of the lateral strut portion;
The snow cornice prevention tool according to claim 1, wherein the fixing member covers 75% or more of the outer circumference of the horizontal strut portion in the outer circumferential direction of the horizontal strut portion. The fixing member includes a main body portion interposed between the bottom portion of the inclined member and the horizontal strut portion, and a main portion that continuously covers the inclined portion of the inclined member and the outer peripheral surfaces of the horizontal strut portion. and a reinforcing portion provided in the
The snow cornice prevention tool according to claim 1, wherein the fixing member covers 75% or more of the outer circumference of the horizontal strut portion in the outer circumferential direction of the horizontal strut portion. A method for constructing a snow cornice preventive tool for arranging a snow cornice preventive tool on a horizontal support part that supports the sign board above the roadway in a sign installation pole on which the sign board is installed, comprising:
A magnet is attached to the bottom portion of an inclined member made of expanded polystyrene , which has a pair of inclined portions inclined upward from the lateral strut portion so as to approach each other, and a bottom portion disposed against the lateral strut portion. a procedure of disposing a fixing member made of a sheet-shaped member containing the
After forming the cornice prevention device, the method of installing the cornice prevention device, comprising: fixing the cornice prevention device by attracting the cornice prevention device to the horizontal strut portion using the magnetic force of the fixing member.

Images