JP4158954B2 - Blowout type snow fence - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a blow-off type snow fence, and is used as a countermeasure against snowstorm and snowdrift on roads and tracks.
[0002]
[Prior art]
Conventionally, this type of blown-type snow fence has a plurality of pillars standing along a road and the like at predetermined intervals, and a plurality of snow boards are obliquely lowered toward the road side on these pillars. It was arranged, and the snow that would have piled up on the road was blown away by increasing the wind speed of the snowstorm blown on the road by these snow protection plates.
[0003]
[Problems to be solved by the invention]
However, since the conventional snow fence device is installed in a state where a plurality of snow plates are inclined on the support column, the work is troublesome and the installation cost tends to be expensive.
[0004]
An object of the present invention is to eliminate such inconvenience.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the blow-off type snow fence according to the present invention comprises a support member standing on the ground and the required number of snow-proof members, and the blow-off type in which the snow prevention member is installed on the support member. In the snow fence, a flexible snowproof sheet is used as the snowproof member, and the upper edge and both side edges of the flexible snowproof sheet are fixed to the support member with almost no gap in a state where the lower edge of the flexible snowproof sheet is loosened. As a result of the flexible snow proof sheet descending obliquely toward the leeward, the snowstorm flows along the flexible snow proof sheet and blows to the leeward side, and the lower end of the flexible snow proof sheet is bent leeward by the wind force. As a result of forming the opening, the snowstorm blows to the leeward side through this opening.
[0006]
【Example】
1 is a perspective view of an embodiment of a blow-off type snow fence according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a sectional view taken along line III-III in FIG. 2, FIG. Is a front view of another embodiment, FIG. 6 is a sectional view taken along line VI-VI in FIG. 5, and FIG. 7 is a perspective view of still another embodiment.
[0007]
In FIG. 1, R is a road, and M is a blown snow fence, which is installed along this road R.
[0008]
In FIG. 2 to FIG. 4, 10, 10,... Are support columns of the blow-off type snow fence M and are erected on the ground. Reference numerals 11 and 11 denote horizontal rails, which are fixed in a state of being stretched over the support columns 10, 10,. 20, 20,... Are flexible snowproof sheets, the upper edge of which is fastened and fixed to the horizontal rails 11, 11 by auxiliary ropes 111, 111,. On the other hand, it is fastened and fixed by auxiliary ropes 101, 101,. At this time, the lower end edges of the flexible snowproof sheets 20, 20,... Are kept loose. For this reason, the flexible snowproof sheet 20 is inclined downward toward the leeward due to the wind force and the lower end of the flexible snowproof sheet 20 is curved toward the leeward side to form an opening 21. As a result, the snowstorm follows the flexible snowproof sheet 20. It flows through the opening 21 and blows toward the leeward side (see the arrow in FIG. 3).
[0009]
The flexible snowproof sheet 20 may have any shape, but if a trapezoidal shape as shown in FIG. 4 is used, the lower end edge of the flexible snowproof sheet 20 can be easily maintained. Further, as the flexible snowproof sheet 20, a mesh sheet can be used. Further, as the horizontal rail 11, a rope or the like can be used in addition to a rigid material such as a steel frame.
[0010]
5 and 6 show another embodiment. A pulley 12, 12,... Is installed on the top of the support column 10, 10,... And a hoisting rope 13 is wound around the pulley 12. As shown in FIG. A side edge of the flexible snowproof sheet 20 is fastened and fixed to the lifting rope 13 by auxiliary ropes 131 and 131. For this reason, if the side edges of the flexible snowproof sheets 20, 20,... Are fixed to these hoisting ropes 13, 13,... In advance, by pulling them in the direction of the arrow (see FIG. 6). The flexible snowproof sheets 20, 20,... Can be installed on the supports 10, 10,... And the flexible snowproof sheets 20, 20,. It can be removed from.
[0011]
FIG. 7 shows still another embodiment in which right-angled triangular mounting members 71, 71,... Are installed on the support posts 10, 10,. The side edges of 20,... Are appropriately fixed by fixing means, and the flexible snowproof sheets 20, 20,. The flexible snowproof sheets 20, 20,... Can be stretched in series.
[0012]
In addition, as a means for fixing the flexible snowproof sheet 20 to the crosspiece 11, the support column 10, and the lifting rope 13, all conventional fixing means such as binding with an auxiliary rope and fixing with a metal fitting can be used.
[0013]
Further, the support column 10 and the cross rail 11 correspond to the “support member” of the present invention.
[0014]
【The invention's effect】
The blow-off type snow fence according to the present invention includes a support member standing on the ground and a required number of snow-prevention members, and the blow-off type snow fence having the snow member installed on the support member is flexible as the snow-prevention member. Since the upper edge and both side edges of the flexible snowproof sheet are fixed to the support member with almost no gap in a state where the lower edge of the flexible snowproof sheet is slackened, the flexible snowproof sheet is directed toward the leeward by wind force. As a result of falling obliquely, the snowstorm flows along this flexible snowproof sheet and blows to the leeward side, and the lower end of the flexible snowproof sheet is curved to the leeward side by wind and forms an opening. Passing through this opening and spraying to the leeward side, the blowing effect can be further improved.
[0015]
Therefore, if this blow-off type snow fence is used, it is possible to install the snow fence device by simple work unlike the conventional case. As a result, the work efficiency of the installation can be improved and the installation cost can be reduced. be able to.
[Brief description of the drawings]
FIG. 1 is a perspective view of an embodiment of a blow-off type snow fence according to the present invention.
FIG. 2 is a front view of the same.
FIG. 3 is a cross-sectional view taken along line III-III in FIG.
FIG. 4 is a front view of a flexible snowproof sheet.
FIG. 5 is a front view of another embodiment.
6 is a cross-sectional view taken along the line VI-VI in FIG.
FIG. 7 is a perspective view of still another embodiment.
[Explanation of symbols]
M… of the blown snow fence
10… Prop (support member)
11… Horizontal rail (support member)
13… Lifting rope
20… Flexible snowproof sheet

Claims (1)

A blow-off type snow fence provided with a support member standing on the ground and a required number of snow prevention members, wherein the snow prevention member is installed on the support member, a flexible snow prevention sheet is used as the snow prevention member, and the flexible A blow-off type snow fence which is characterized in that the upper edge and both side edges thereof are fixed to the support member with substantially no gap in a state in which the lower edge of the snowproof sheet is slackened .

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