JP3153841U - Snow fence for slant wind - Google Patents

Abstract

To provide a snow fence that can cope with wind and snow blowing from an oblique direction to the snow fence. SOLUTION: A two-stage, wing-shaped snow protection plate 4 is set in a stepwise manner on a creeping-back snow protection fence 2 with a creeping / guide plate. The snow protection plate is divided into four pieces, and the adjacent snow protection plates are attached at different angles. The wind and snow blown to the creeping part does not hit the snow fence perpendicularly, and even when blowing obliquely, it can be scooped up by a snow guard plate at any angle and pushed toward the guide plate to create a favorable flow . [Selection] Figure 1

Description

  It relates to snow fences used on snowy roads.

  In snowfall areas, snow fences used during snowfall have been devised to prevent snow from accumulating on the road surface in order to ensure the safety of road traffic. There are blow-off type, blow-off type, and blow-off type snow fences with a guide / guide plate (Patent No. 311470) that blows snow far beyond the road.

  However, these design policies show the maximum effect when the wind blows perpendicularly to the snow fence, but the effect is reduced when the wind blows against the snow fence from an oblique direction. The same is true when the road is curved.

  Snow fences that can cope with different average wind directions at that time, including topographical factors, are desired.

  The present invention has been made in view of the above problems, and by arranging the wing-shaped snow protection plate divided into the creeping parts and changing the mounting inclination angle of each adjacent one, totally different wind directions It was found experimentally that it can cope with.

  Set a wing-shaped snow-proof board to the creeping part in two or three steps. The snow protection plate is divided into four pieces, and the adjacent snow protection plates are attached at different angles.

  The wind and snow blown to the creeping part does not hit the snow fence perpendicularly, and even when blowing obliquely, it can be scooped up by a snow guard plate at any angle and pushed toward the guide plate to create a favorable flow .

  The vertical part is about 2.5m in the snow-breaking fence with a 4m swaying and guiding plate, and it is divided into two parts on the part that is inclined about 45 degrees toward the windward as a normal sneaking part. Four snowboards having a wing-shaped width of about 50 cm and a length of about 1 m are arranged for each stage.

  The first of the four wing-type snow plates is set so that the tip of the wing is directly below and the concave surface is directed toward the windward, and the adjacent snow plate is about 15 degrees upward. Then, the next third sheet is set upward by about 30 degrees, and the last fourth sheet is set upward by about 45 degrees.

  The snow fence according to the present invention will be described with reference to the drawings. FIG. 1 is a conceptual view of the snow fence with creeping / guide plates as seen from the side, the vertical section 1, the creeping section 2 inclined about 45 degrees toward the windward, and On top of that, there is a guiding portion 3 which is inclined about 60 degrees toward the leeward.

  A wing-shaped snow protection plate 4 having two steps parallel to the creeping portion 2 of the snow fence shown in FIG. The sectional view of the wing is made of aluminum having a thickness of about 2 mm as shown in FIG.

  While increasing the angle of inclination so that there are 4 pieces per stage, the first one is directly downward so that the tip 5 of the wing is on the lower side, and the second and subsequent ones are upward about 15 degrees for each one. It is attached. Such is conceptually illustrated in FIG.

  Four wing-shaped snow protection plates 4 having the same shape as that of the first embodiment are attached to the creeping-back portion 2 of the snow fence shown in FIG. 1. FIG. As shown in the figure, the first sheet is set with the direction of the concave surface facing upward 45 degrees obliquely, and the second sheet is set with the concave surface facing downward exactly 180 degrees from the first sheet.

  A wind regulation plate 6 having a width of 50 cm and a height of 2.5 m is vertically attached to the windward side of the vertical portion 1 of the snow fence as described in the first or second embodiment as shown in FIG. The wind control plate 6 can change the angle not only in the vertical direction but also in an arbitrary direction when viewed from the snow fence, and can be directed to an excellent wind direction on average.

  By changing the angle of the wing-shaped snow protection plate, it has the effect of picking it up not only from the vertical direction with respect to the snow fence but also from wind and snow blowing from an oblique direction and directing it toward the guide plate The function as a snow fence increases.

A conceptual view of a snow fence with a guide plate from the side. Sectional drawing of a wing-shaped snowproof board. The perspective view which shows a mode that the wing type snow-proof board was attached to the creeping part. A view of the snow fence from the side. The perspective view which shows the condition which attached the wing | blade type | mold snowproof board to the opposite direction alternately. The perspective view which shows the condition which attached the wind regulation board perpendicularly to the windward side of the snow fence.

DESCRIPTION OF SYMBOLS 1 Vertical part 2 Stealth part 3 Guidance part 4 Wing type snow-protection board 5 Tip of wing 6 Wind-conditioning board

Claims (4)

    A snow fence with a height of 4 to 6m and an interval between pillars of about 4m, and a snow plate that is 40% to 80% upright from the bottom and about 45 to 60 degrees above it. In a snow fence made up of three parts: a 0.5-1m creeping part and a 0.7-1.5m guiding part with a snow-proofing board tilted about 60 degrees on the opposite leeward side. A wing-shaped wing shape in the creeping part, a wing width of 40-60cm, and a length of 0.5-2m, 2 to 3 steps, a plurality of snow protection plates are attached between the snow fence posts, adjacent to each other. Is a snow fence for slant winds characterized by changing the slope.   When mounting four wing-shaped snowboards of about 1 m in length between the supports of the creeping part, the first snowboard is a concave surface toward the windward with the tip of the wing just below The snow fences according to claim 1, wherein the adjacent snow protection plates are directed upward by about 15 degrees, the inclination is sequentially increased by about 15 degrees, and the fourth sheet is inclined by about 45 degrees.   When attaching four or two 2 m snowboards of the wing shape according to claim 1 between the pillars of the creeping part, the first sheet is 45 to 60 degrees in the direction of the concave surface. 2. The snow fence according to claim 1, wherein the snow protection board adjacent thereto is directed downward by 180 degrees opposite thereto.   A windbreak plate having a constant width and a constant height is vertically attached to a windward side of the vertical part of the snow fence according to claim 1, that is, a side where the snow fence is overhanging, in a fixed direction including a direction perpendicular to the direction of the snow fence. The snow fence according to claim 1, wherein there is a snow storm fence.

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