JP4397256B2 - Windbreak snow fence - Google Patents

Description

  The present invention relates to a windproof snow fence that can be expanded and stored by using a flexible shielding screen to prevent wind pressure and snow blowing.

  As a windproof snow fence that can be expanded and stored by using a conventional flexible shielding screen to prevent wind pressure and snow from blowing, a net is provided between adjacent struts in Patent Document 1, for example. A winding type windproof / snowproof fence is disclosed in which is provided so as to be able to be wound on the column side and the net is extended toward the adjacent column side.

JP 2003-321807 A

  However, as described in Patent Document 1, it is necessary to carry out while supporting the net at the time of winding and spreading in the wind-proof wind and snow fence which can be wound on the column side and is extended toward the adjacent column side, A complicated work by a plurality of workers is required.

  The present invention has been made in view of the problems as described above, and an object thereof is to provide a windproof snow fence that can be extended and stored by a simple operation.

In order to achieve the above object, the present invention is configured as follows. That is, the windproof snow fence according to the present invention is provided with a flexible shielding curtain capable of windproofing and snowproofing between a plurality of upright columns, and is arranged in the left-right direction above and below the shielding curtain. Left and right horizontal hollow portions are provided, and support rods for vertically supporting the shielding curtains are inserted into the left and right horizontal hollow portions so as to be rotatable in the left and right horizontal hollow portions, and the plurality of support rods are The plurality of struts are provided with mounting grooves that open opposite to each other and extend in the vertical direction, and are inserted into the left and right horizontal hollow portions of the shielding curtain so that the shielding is provided. It is possible to extend and store the shielding curtain by sliding up and down the supporting rod inserted into the mounting groove at both ends of the supporting rod that supports the curtain. To do.

  Moreover, the said support | pillar is provided integrally with the protection fence, It is characterized by the above-mentioned.

  According to the windproof snow fence according to the first aspect of the present invention, due to the dead weight of the shielding screen and the supporting rod, the expansion is performed in a state where the shielding screen is tensioned during the expansion, and there is no need for winding by the operator during the storage. The screen is lowered downward, and the support rods are rotatably inserted in the left and right side hollow parts, so that the screen can be moved and moved freely when the screen is extended and stored. And can be extended and stored with smooth operation.

Further, according to the invention of claim 1 , the flexible shielding curtain can be slid with the support rod in the mounting groove provided to open opposite to the plurality of support columns, and can be expanded and stored. The support rod can be easily moved up and down, and work related to expansion and storage is further simplified, which is preferable.

  Further, according to the invention of claim 6, since the windproof snow fence and the protective fence are provided integrally, only when the integrated fence is installed when installing on a road side edge or the like where both functions are required. This is preferable because it reduces the work involved in installation.

  BEST MODE FOR CARRYING OUT THE INVENTION The best embodiment according to the present invention will be specifically described below with reference to the drawings.

(First embodiment)
1 to 5 show a first embodiment of a windproof snow fence according to the present invention, and FIG. 1 is a front view showing a state in which a shielding curtain is extended. First, in FIG. 1, a black screen netting screen 1 in which a support rod (not shown) is inserted in the lateral direction is inserted and attached between upright columns 3. A windproof snow fence 10 is formed. Near the lower end of the column 3, a windbreak snowboard B made of a folded plate is attached between the columns 3 in the horizontal direction, and a ladder that allows the operator to climb the column 3 in the middle of the column 3. L is attached.

FIG. 2 is a cross-sectional view of the windproof snow fence 10 of FIG. The support screen 2 is inserted into the left and right horizontal hollow portions 11 of the screen 1 so that the screen 1 is attached to the support screen 2, and the support screen 2 is provided with four support screens 2A to 2D in the vertical direction. In the state in which the curtain 1 is extended, the uppermost support rod 2A is supported from below by a bolt B inserted through the column 3 downward, and the lowermost support rod 2D is inserted through the column 3 upward and downward, respectively. The upper end and the lower end are fixed by being supported from above and below by the bolt B , and the extended state of the shielding curtain 1 is maintained. Further, a wire W is attached to the support rod 2A at the upper end, and when the shielding curtain 1 is extended, the wire W is pulled upward by a winch U via a pulley K attached to the upper end of the support column 3, so that the entire shielding curtain 1 is provided. Is lifted to extend the shielding screen 1, and after the shielding screen 1 is expanded by the winch U, the bolt B is inserted into the column 3. After the bolt B is inserted, the winch U, the pulley K, and the wire W can be removed.

FIG. 3 is a perspective view showing the vicinity of the upper end of the column 3 with the pulley K and the wire W of the windproof snow fence 10 removed. The support column 3 is a steel material having an H-shaped cross section by the flange 31 and the wave 32, and the mounting groove 33 is formed between the flanges 31. The support rod 2 includes a main body 21 that is a round pipe and a cylindrical arm attachment portion 22 into which the main body 21 is rotatably inserted, and a peripheral portion 13 provided around the net portion 12 of the shielding curtain 1. The main body 21 is inserted into a bag-like left and right horizontal hollow portion 11 provided over the entire left and right direction of the upper end. The arm mounting portion 22 of the support rod 2 is inserted into the mounting groove 33, and the bolt B is removed so that the mounting groove 33 can be slid in the vertical direction. Done. As long as the mounting groove 33 is formed, the support column 3 is not limited to the one having the H-shaped cross section, and one having the C-shaped cross section arranged in an opposite direction can be used.

  The arm attachment portion 22 is provided with a wire attachment portion W1 for attaching a wire W for expansion and storage on the upper surface, and an arm 4 is protruded downward. The arm 4 is provided with an upper arm 41 and a lower arm 42, and a bent portion 43 that joins the upper arm 41 and the lower arm 42 and bends in one direction. The bent portion 43 is formed by overlapping the upper arm 41 and the lower arm 42. The upper arm 41 and the lower arm 42 are turned and bent with the bolt B4 as a support shaft, but the upper arm 41 is prevented from being bent to the other side by the lower arm 42. Since the restraining plate 44 is attached to the arm 4, the arm 4 is bent only in a predetermined direction. Further, a stay 45 protrudes from the bent portion 43, and the stay 45 is inserted into a mounting hole 131 formed in the vicinity of the center of the peripheral portion 13 of the shielding curtain 1 in the vertical direction, so that the bent portion 43 and the shielding curtain are provided. 1 is fixed, and the screen 1 is folded along with the bending portion 43, so that the direction in which the screen 1 is folded can also be one direction.

4A and 4B show the storage state of the windproof snow fence 10, where a) is a storage state, and b) is a cross-sectional view from the side showing a storage state. First, a) is a state in which the support rods 2B and 2C are bent when the shielding curtain 1 is stored. The upper arm 41 and the lower arm 42 are in the directions of arrows Y1 and Y2 around the bent portion 43, respectively. Is rotated. By the vertical direction near the center of the bent portion 43 and the shielding curtain 1 is fixed by the stay 45, shielding curtain 1 is the vicinity of the center is tensioned Tsu arguments are folded is bent with the bending of the arm 4. By performing such an operation between the support rods 2A to 2D, the shielding curtain 1 is folded and stored together with the support rod 2 and the arm 4 as shown in FIG. The screen 1, the support rod 2 and the arm 4 are hidden by the windbreak snow plate B and are not visible from the front side α, and prevent the surrounding landscape from being damaged by storage when the windbreak snow fence 10 is not needed. However, the support column 3 is further divided into an upper part 3A and a lower part 3B, and the support part 3 is also concealed from the front side α by the windbreak snowboard B by the upper part 3A being tilted after storing the shielding curtain 1 or the like. It is made like that.

The upper part 31 of the column 3 is brought down as shown in FIG. FIG. 5 is a front view of a partially broken surface that reveals the column 3 part. The upper part 3A and the lower part 3B of the column 3 are the upper part when the shielding curtain 1 is extended. a baseplate provided at the upper end of the base plates及 beauty lower portion 3B provided at the lower end of 3A is brought into contact, it is made to integrally by being bolted. Baseplate are connected by a hinge structure H, when the upper portion 3A is killed is adapted to be brought down is rotated along the extending direction of the wind Yukisaku 10 about the hinge structure H .

  With this configuration, in addition to the above-described effects, the shielding screen 1 is flexible, so that the mechanism for expansion and storage can be simplified and the cost can be reduced as compared with the case where a metal plate or the like is used for shielding. In addition, there is no risk of malfunction of the rotating part due to metal corrosion. Also, noise during installation can be reduced. Furthermore, it is much lighter than a metal plate and the like, and the power required for transportation, expansion and storage can be reduced, and the degree of freedom in installation can be increased.

  The shielding screen 1 is not particularly limited to a net as long as it can be flexible and can be provided with the left and right horizontal hollow portions 11, but is punched into a cloth-like material, a synthetic resin sheet-like material, or a flexible sheet. An appropriate material such as a processed material may be used. For example, high-strength stretched polyolefin tape, polyester fiber, etc. are used as the core material, and the core material is woven in a net shape and coated with EVA, vinyl chloride resin, acrylic resin, etc., or the core material previously coated with resin is woven in a net shape If a net or the like formed by heating and fusing the intersection is used, the screen is less likely to be decomposed, and there is almost no elongation due to wind pressure, and there is little risk of net slack for a long time. Can be obtained.

  If the opening ratio of the screen 1 is 50% or more, it is difficult to obtain the effect of windproof snow. If it is in the range of 0 to 50%, a sufficient effect as a windproof snow fence can be obtained. Since the user cannot obtain a view of the surroundings and feels a sense of pressure and blockage, it is preferable to achieve both the effect of windproof snow and securing of the surrounding view and lighting as an opening ratio of 30 to 50%. Further, the color tone of the screen 1 is not particularly limited and may be an appropriate color tone, but it can be harmonized with the surrounding scenery and has a good view outside the windbreak snow fence 10 from an oblique direction. The color tone is preferably gray, black, or a color close to it.

  The support rod 2 is preferably made of metal in consideration of supporting the shielding screen 1 to which a large wind pressure is applied, and pipes and shapes such as aluminum, stainless steel and steel, and plating and coating are applied to them. A thing etc. can be used conveniently. Similarly, it is preferable to use a metal material for the arm 4, and pipes, plates, shapes, and various angle materials can be used. Further, the support column 3 is not particularly limited to the one having an H-shaped cross section as long as the mounting groove 33 is formed. Those installed at intervals can be used as appropriate.

  Further, the folding of the shielding screen 1 is not limited to that by the arm 4, and as shown in FIG. 6, by folding and sewing the vicinity of the center of the peripheral portion 13 in the vertical direction, It may be possible to fold the shielding curtain 1 in only one direction simply by lowering the support rod 2 by folding the peripheral portion 13.

  Furthermore, the left and right horizontal hollow portions 11 of the shielding screen 1 are provided such that the upper and lower left and right horizontal hollow portions 11A and 11B are staggered in the left and right directions as shown in FIG. And it is good also as what inserts the support rod 2 after inserting between 11B. With this structure, it is not necessary to integrally form the shielding screen 1 in the vertical direction, and it is possible to cope with windproof snow fences 10 having various heights by using one type of vertical shielding screen 1.

(Second embodiment)
FIG. 8 shows another embodiment of the windproof snow fence 10 according to the present invention, in which (a) is a front view and (b) is a sectional view taken along line BB of (a). First, in (i), the windbreak snow fence 10 is provided with the shielding screen 1 provided between the upright columns 3, and the shielding screen 1 is provided on the left and right sides of the net portion 12 in the entire left and right direction. The support screen 2 is inserted into the horizontal hollow portion 11 and the support screen 2 is attached to the column 3 so that the shielding curtain 1 is extended. As in the first embodiment, the support column 3 is divided into an upper portion 3A and a lower portion 3B, and the support portion 3 can also be stored when the upper portion 3A is tilted. A four-level cross beam 51 is attached to the front side of the support column 3 between the support columns 3 using a joint fitting 52, and functions as a protective fence from the front side.

2), the support screen 2 has a support rod 2 attached to the column 3, and both ends of the support rod 2 are inserted into the U-shaped member C having the attachment groove 33 so that it can slide in the vertical direction within the attachment groove 33. As a result, the shielding screen 1 and the support rod 2 can be extended and stored in the vertical direction. The cross beam 51 and the joint fitting 52 are attached to the front surface of the front part 3C that is erected separately from the upper part 3A and the lower part 3B for attaching the shielding curtain 1 in the column 3, and the lower part 3B and the front part 3C. and, together they are fixed to the same base plate 3C1 at the lower end, in the vicinity of the upper end that are more fixed stearyl over, from far front α than the lower portion 3B is provided upright alone It is made strong against load.

FIG. 9 is a side cross-sectional view showing storage of the shielding screen 1 and the support rod 2. First, in (a), from the state in which the shielding screen 1 is extended, the support rod 2 is slid downward in the mounting groove 33 of the U-shaped member C and stored below the upper portion 3A. The upper portion 3A and a lower part 3B, are connected by the first embodiment as well as the hinge structure H, although the baseplate is bolted in time installation is required windproof Yukisaku 10, windproof when the installation of the Yukisaku 10 becomes unnecessary time, after the support rod 2 is moved from the upper portion 3A downward, the upper portion 3A by a hinge structure H and opening the bolted direction of arrow Y 3 Can be rotated. Rotates the upper portion 3A in the direction of arrow Y 3, the upper portion 3A as shown in B) are accommodated on the side opposite to the front side alpha, overhanging sky without impede passage of the front side alpha upward The surrounding landscape can be improved by storing the part 3A.

FIG. 10 is a perspective view showing a reference embodiment . The support rod 2 is a round pipe, and is inserted through the left and right horizontal hollow portions 11 provided in the left and right directions above and below the shielding curtain 1. Further, the support rod 2 is compressed into an end portion to form a flat portion 23, and bolt holes (not shown) are formed in the flat portion 23, respectively. Bolts B5 are inserted through (not shown) and nuts N are screwed to fix the support rod 2 to the column 3. At the time of storage, the nut N may be detached and the support rod 2 removed from the column 3, and the shielding curtain 1 attached to the upper part 3A and the lower part 3B may be stored in different places. Only the attached screen 1 may be removed and stored in another place, or the screen 1 removed from the upper part 3 may be fixed to the lower part 3B together with the screen 1 of the lower part 3B by bolting or the like. May be.

  Furthermore, the support rod 2 and the column 3 may be provided as shown in FIG. FIG. 11 is a cross-sectional view showing a modification of the second embodiment. First, in FIG. 11A, the support column 3 is divided into an upper part 3A and a lower part 3B, and the upper part 3A is a hinge connecting the lower part 3B. The structure H is rotated in the direction of the arrow Y4 by the structure H so that the upper part 3A can be stored. The cross beam 51 is attached to the front side α of the lower part 3B via a joint fitting 52. The lower part 3B serves as both the mounting of the shielding screen 1 and a protective fence.

In (b), the upper portion 3A and the lower portion 3B are divided and separable, and a lower end of the upper portion 3A is provided with a sheath pipe that can be fitted to the lower portion 3B from the upper end of the lower portion 3B. With such a structure, the upper portion 3A and the shielding screen 1 and the support rod 2 attached thereto can be completely removed and stored in another place, and can be stored even in places where installation space is extremely limited. Windproof snow fence can be installed.

It is a front view explaining 1st embodiment of the windproof snow fence concerning this invention. It is AA sectional drawing of FIG. It is a perspective view which shows the detail of the support | pillar upper end vicinity in 1st embodiment of the windproof snow fence concerning this invention. It is sectional drawing which shows the accommodation state in 1st embodiment of the windproof snow fence concerning this invention. It is a partially broken sectional view from the front which shows the accommodation state of the support | pillar in 1st embodiment of the windproof snow fence concerning this invention. It is a perspective view which shows an example of the shielding curtain of the windproof snow fence concerning this invention. It is a perspective view which shows an example of the shielding curtain of the windproof snow fence concerning this invention. It is the BB sectional drawing from the front view and front view in 2nd embodiment of the windproof snow fence concerning this invention. It is sectional drawing which shows the accommodation state in 2nd embodiment of the windproof snow fence concerning this invention. It is a perspective view which shows the reference Example of the windproof snow fence concerning this invention. It is sectional drawing which shows the example of a deformation | transformation in 2nd embodiment of the windproof snow fence concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shield screen 11 Left and right horizontal hollow part 2 Supporting rod 3 Post 33 Mounting groove 4 Arm 43 Bending part 51 Cross beam 10 Windproof snow fence

Claims (6)

A flexible shielding screen capable of wind protection and snow prevention is provided between a plurality of standing pillars, and left and right horizontal hollow portions extending in the left and right directions are provided above and below the shielding screen, A support rod for supporting the shielding curtain in the vertical direction in the left and right horizontal hollow portions is inserted so as to be rotatable in the left and right horizontal hollow portions, and the support rod is inserted and attached between the plurality of columns. In addition , the plurality of support columns are provided with mounting grooves that open opposite to each other and extend in the vertical direction, and are attached to both ends of the support rods that are inserted into the left and right hollow portions of the shielding curtain to support the shielding curtain. A windbreak snow fence characterized in that the shielding curtain can be extended and stored by sliding the support rod inserted into the groove up and down in the mounting groove . The support rod includes a main body and an arm mounting portion into which the main body is rotatably inserted. The main body is inserted into the left and right horizontal hollow portions of the shielding curtain, and the arm mounting portion is inserted into the mounting groove and attached. The windproof snow fence according to claim 1, wherein the windproof snow fence is configured to be slidable in a vertical direction within the groove . The shield screen is provided with left and right horizontal hollow portions extending in the left-right direction between the left and right horizontal hollow portions provided at the upper and lower ends, and the support rod is inserted into the left and right horizontal hollow portions. The windbreak snow fence according to claim 1 or 2, characterized by the above. The shielding screen has a plurality of shielding screens arranged in a vertical direction, and the upper and lower left and right horizontal hollow portions are provided alternately in the left and right directions in the connecting portion. The windbreak snow fence according to claim 1 or 2, wherein the support rod is inserted between the left and right horizontal hollow portions. The arm mounting portion has an arm projecting downward, and the arm is provided with an upper arm, a lower arm, and a bent portion that joins the upper arm and the lower arm and bends in one direction. The windproof snow fence according to any one of claims 1 to 4, wherein the shielding curtain can be bent by bending the bent portion when the shielding curtain is stored. The struts wind Yukisaku according to any one of claims 1 to 5, characterized in that it is provided integrally with the safety barrier.

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