JP7213539B2 - Retaining structure of net members in wind and snow fences - Google Patents

Description

TECHNICAL FIELD The present invention relates to a wind and snow fence, and more particularly to a fixing structure for a snow net. To provide a structure for holding a wind and snow net that is excellent in terms of member cost and workability.

Conventional wind and snow fences installed along roads, etc., to protect vehicles from strong winds and accumulated snow. Wind and snow boards made of woven fibers or formed with a large number of perforations. In some cases, a net-like member such as is used.
When such a net-like member is stretched between pillars erected at intervals, conventionally, holes were made in the net itself and it was fixed to the pillars with bolts and nuts. I had a processing problem.

Therefore, in Japanese Patent Application Laid-Open No. 2005-163429, bolts are inserted through a pipe in the direction in which the snow protection net is stretched to form a columnar body, and a slit is provided in the pipe at the middle of the bolt through hole to form an end portion of the snow protection net. is wound around a pipe from the opposite side of the slit and inserted into the slit, and the pipe is fastened with a nut screwed onto a bolt.

Further, in Japanese Patent Laid-Open No. 2009-74358, a net-like member is stretched in the left-right direction via a holding member between pillars that are erected at intervals, and the holding member has a depth extending in the vertical direction. A housing groove, a pressure contact member disposed on the opening side of the housing groove, and a pressing member that presses the pressure contact member from the back side toward the opening side, wherein the end portion of the net-like member inserted into the housing groove is , a structure in which a pressing member is pressed against the inner wall of the housing groove and sandwiched between the pressing member and the pressing member.

Furthermore, in Japanese Patent Application Laid-Open No. 2018-21413, a net-like member is stretched in the left-right direction through a vertical frame member between columns erected at intervals, and the vertical frame member includes a vertical frame member main body. The vertical frame member main body includes a vertically extending accommodating portion, a core member accommodated in the accommodating portion, a pressing member for pressing the core member in the horizontal direction, and a laterally extending portion at a position facing the pressing member. and a protruding portion protruding toward the inside of the accommodating portion, wherein the end portion of the net-like member is fixed to the core material and wound, and the net is accommodated in the accommodating portion A configuration is disclosed in which the core material around which the shaped member is wound is sandwiched between the pressing member, the projecting portion, and the core material.

JP-A-2005-163429 JP 2009-74358 A JP 2018-21413 A

In the publication of Patent Document 1, the net member is brought into contact with and fixedly pressed only on a line or one surface, and a sufficient clamping force cannot be obtained.
In addition, in the publication of Patent Document 2, the number of structural members is complicated with four members, and since the pressing member and the pressing member are inserted vertically into the pressing member during construction, they are long members. I have a sexual problem.

In addition, in the publication of Patent Document 3, two members, a vertical frame member and a core member, are basically used, but both of them are divided into two and formed as one member, which is the same complicated structure as in the above publication.
In addition, the vertical frame member is divided into two so that the specially shaped core member can be inserted in the horizontal direction when the core member is arranged in the vertical frame.

Furthermore, in the publications of Patent Documents 2 and 3, the pressing bolt is screwed in from the column side to press and clamp the core material. There is a possibility that the core material around which the ends are wound may be acted in the non-stretching direction, which is the center side of the net member, and be separated from the pressing member, loosening the clamping.

Therefore, the present invention firmly fixes the ends of the net-like member to improve the workability when the net-like member is stretched, and holds the net-like member in the wind and snow fence so that the net-like member is less likely to become loose. It is intended to provide structure.

In the structure for holding a net-like member in a wind and snow fence according to the present invention, the invention of claim 1 is a windbreak in which a net-like member is stretched in the left-right direction via a holding member between posts erected at intervals. In the snow fence, the holding member has a holding frame with a U-shaped plane extending in the vertical direction, and a surface around which the ends of the net-like member are wound so as to contact one side wall and the back wall. a core member arranged in the holding frame; and a pressing member arranged in contact with the other side wall of the holding frame; a pressing means for pressing a pressing member toward the back wall of the holding frame, wherein the pressing member moves toward the back wall of the holding frame so that the ends of the net-like member are pressed against the wound core material. and the inclined surface of the pressing member, and the back wall and one side wall of the holding frame.

The invention of the net-like member holding structure in the wind and snow fence according to claim 2 is the invention according to claim 1, in which one side wall of the holding frame is inclined inward, and the surface of the core material in contact is also inclined to the corresponding inclined surface. It is characterized by being formed.

The invention of the net-like member holding structure in the wind/snow fence according to claim 3 is the invention according to claim 1 or 2, wherein the other side wall of the holding frame protrudes at a right angle with respect to the inner wall corresponding to the advancing and retreating of the pressing member. and the contact surface of the pressing member is also formed to have a corresponding angular surface.

According to a fourth aspect of the present invention, there is provided a structure for holding a net-like member in a wind and snow fence according to any one of the first to third aspects, wherein the pressing member has a stopper piece that abuts against the tip of the other side wall of the holding frame. It is characterized by

The invention of claim 5 of a structure for holding a net-like member in a wind and snow fence is characterized in that, in the invention of any one of claims 1 to 4, the holding frame, the pressing member and the core material are made of aluminum alloy. is.

According to the invention of the present application, the pressing member moves toward the back wall of the holding frame by pressing means in a state in which the pressing member and the core material are in contact with each other on the inclined surface. and moves in the direction of one side wall, and the end of the net-like member is firmly sandwiched between the wound core material, the inclined surface of the pressing member, the back wall of the holding frame, and the one side wall. will wear.
Therefore, since the ends of the net-like member wound around the core material are sandwiched between the three surfaces of the core material, a strong holding force can be obtained.

Further, even if the snow protection net receives wind and a force acts to pull out the net-like member, the snow protection net is clamped by three surfaces in different directions, and the inclined surfaces of the core material and the pressing member. By being clamped, the core material is prevented from floating in the direction of detachment from the holding frame, and the clamping of the net-like member is prevented from loosening.

Further, in claim 2, one side wall of the holding frame is inclined inward, and the contacting surface of the core material is also formed as a corresponding inclined surface, so that the core material and the pressing member are clamped on the inclined surface. Together with this, it is possible to exhibit a further effect of preventing the core material from floating in the direction of detachment from the holding frame and loosening the clamping of the net-like member.

In addition, in claim 3, the other side wall protrudes from the back wall at a right angle that coincides with the advance and retreat of the pressing member, and reliably receives the movement of the pressing member in the front-rear direction. It exhibits the effect of maintaining and reinforcing the sandwiching action of the net-like member on the inclined surface of .

In addition, in claim 4, since the pressing member is provided with a stopper piece that abuts against the tip of the other side wall of the holding frame, the holding member and the net-like member may be deformed or damaged due to excessive pressure more than necessary. have the effect of preventing

Furthermore, in claim 4, by forming the holding frame, the pressing member, and the core material from an aluminum alloy, the weight can be reduced compared to the conventional steel ones, and there is an effect of improving workability.

BRIEF DESCRIPTION OF THE DRAWINGS It is a partial front view of the wind-snow fence which shows one embodiment of this invention. FIG. 2 is a front view showing a state in which a net-like member is stretched on a support via a holding member, showing an embodiment of the present invention, with flanges of the support removed. 1 is a cross-sectional plan view showing a holding structure of a net-like member and a holding member according to an embodiment of the present invention; FIG. FIG. 4 is a cross-sectional plan view showing a process in which the net-like member is sandwiched between holding members; 1 is a cross-sectional plan view showing a state in which a net-like member, showing an embodiment of the present invention, is stretched on a pillar via a holding member; FIG.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a partial front view of a wind/snow fence showing an embodiment of the present invention, and FIG. 2 is a front view showing a state in which a net-like member is stretched on a support via a holding member, with the flange of the support removed. is.
In the drawings, 1 is a post, 2 is a net-like member, both ends 21 of the net-like member 2 are supported by the holding member 3, and by fixing the holding member 3 to the post 1, The net-like member 2 is stretched between the pillars 1, 1 to form a wind and snow fence.

In the drawing, a bent plate is stretched on the lower part of the wind and snow fence, and a net-like member 2 is stretched on the upper part thereof.
The struts 1 are erected and fixed at appropriate intervals, and through-holes 12 for bolts for attaching the holding members 3 and the bent plates are drilled at predetermined positions on the web surface 11 of H-shaped steel.
The net-like member 2 is not limited to various types of generally-called nets, and may be a sheet-like material made of various materials that are equivalent to punching.

The holding member 3 includes a holding frame 4 having a U-shaped plane extending in the vertical direction of the width over which the net-like member 2 is stretched on the post 1, a core member 5 arranged in the holding frame 4, and a pressing member. 6, and a bolt 7 and a nut 8 which are pressing means for pressing the pressing member 6 toward the back wall 41 of the holding frame 4. As shown in FIG.
The core member 5 and the pressing member 6 have the same vertical length as the holding frame 4 .
Further, if the holding frame 4, the core member 5 and the pressing member 6 are made of an aluminum alloy, there is an advantage that they are lighter than steel, have sufficient strength, and are easy to handle.

The basic shape of the holding frame 4 is an elongated U-shaped plane (cross section), and a back wall 41 has a bolt hole 44 for extending to the column 1 and a bolt hole 45 for tightening the pressing member 6 at appropriate intervals. Multiple perforations.
In the drawing, one side wall 42 of the holding frame 4 is inclined inward so that the opening is formed narrower than the inner part, and the other side wall 43 protrudes from the inner wall 41 at a right angle corresponding to the advance and retreat of the pressing member 6. .

The core member 5 has a mutual shape such that the rear wall 51 can abut on the back wall 41 of the holding frame 4 and one side wall 52 can abut on one side wall 42 of the holding frame 4 .
Further, the other side wall 53 of the core member 5 is inclined at an acute angle with respect to the rear wall 51, so that it can come into contact with one side wall of the pressing member 6, which will be described later.
In the drawing, one side wall 42 of the flat U-shaped holding frame 4 is slanted inward, and one side wall 52 of the core member 5 in contact with the holding frame 4 is also formed on a corresponding slanted surface, so that the section has a triangular shape. It consists of columns.

One side wall 62 of the pressing member 6 has an inclined surface capable of coming into contact with the other side wall 53 of the core member 5 , and the other side wall 63 has an angle of contact with the other side wall 43 of the holding frame 4 . and a long frame having a trapezoidal cross section.
Further, tightening bolt holes 65 and 66 communicating with the front and rear walls 61 and 64 are formed corresponding to the tightening bolt holes 45 of the holding frame 4 .

Therefore, in order to hold the net member 2 on the holding member 3 , first, the end portion 21 of the net member 2 is wound around the core member 5 and arranged in the holding frame 4 .
Next, the inclined surface of one of the side walls 62 of the pressing member 6 is brought into contact with the inclined surface of the core material 5 which is in contact with the other side wall 53 , and the other side wall 63 is brought into contact with the other side wall 43 of the holding frame 4 . Place them next to each other.
Then, the back wall 41 of the holding frame 4 is inserted into the tightening bolt holes 65 and 66 that communicate with the tightening bolt hole 45 of the holding frame 4 and the front and rear walls 61 and 64 of the pressing member 6 that are positioned on a straight line. The bolt 7 is inserted from the rear surface, and the front wall 61 of the pressing member 6 is tightened with the nut 8 to clamp the end portion 21 of the net-like member 2 .

Then, as the pressing member 6 moves toward the back wall 41 of the holding frame 4, the other side wall 53 of the core member 5 is pressed against the one side wall 62 of the pressing member 6 by the inclined surface. The material 5 is moved in the holding frame 4 by being pushed toward the inner wall 41 of the holding frame 4 and also in the lateral direction of one side wall 42 .
Therefore, the end portion 21 of the net-like member 2 wound around the core material 5 is placed on the inclined surface of one side wall 62 of the wound core material 5 and the pressing member 6 , the surface of the back wall 41 of the holding frame 4 and one side thereof. It can be strongly fixed by sandwiching it with the surface of the side wall 42 of the .

At this time, the other side wall 63 of the pressing member 6 abuts against the other side wall 43 of the holding frame 4 and is firmly supported to obtain a reaction force. A sufficient pressing force in the direction of the wall 41 and in the lateral direction of one side wall 42 can be obtained.
Further, one side wall 52 of the core member 5 abuts on one side wall 42 inclined inwardly of the holding frame 4, and the other side wall 53 of the core member 5 and the one side wall 62 of the pressing member 6 form an inclined surface. Since it is pressed, it is prevented from rising, and the end portion 21 of the net member 2 is clamped in such a manner that it is pressed against the back wall 41 of the holding frame 4 .

Furthermore, since the pressing member 6 is provided with a stopper piece 69 that abuts against the tip of the other side wall 43 of the holding frame 4, the holding member and the net-like member will not be deformed or damaged due to excessive pressing. To prevent.

The above description is for the process of holding the net member 2 on the holding member 3, and the work place may be selected in consideration of workability and transportation in relation to the factory and fence installation site.
Then, the pillars 1 are erected and fixed at specific intervals at an installation site, and a holding member 3 holding a net member 2 having a width corresponding to the interval of the pillars 1 is attached to the pillars 1. - 特許庁

As described, the web surface 11 of the strut 1 is provided with bolt through holes 12 for mounting the retaining member 3 at predetermined locations.
On the other hand, the front and rear walls 61, 64 of the holding frame 4 and the pressing member 6 are provided with a tensioning bolt hole 44 and a tensioning bolt hole 67, which correspond to the bolt through holes 12 and are positioned on a straight line. 68 are perforated.
Therefore, a bolt 71 is inserted from the rear surface of the web surface 11 into these tensioning bolt holes, and the front wall 61 of the pressing member 6 is tightened with a nut 81 to adjust the degree of tension and hold the net member 2. The holding member 3 is attached to the support 1. As shown in FIG.

As described above, the present invention has been described with reference to the drawings, but the specific configuration in this embodiment is merely an example, and does not exclude other configurations or means that provide similar effects.

1 Post 11 Web surface 12 Bolt through hole 2 Net member 21 End 3 Holding member 4 Holding frame 41 Back wall 42, 52, 62 One side wall 43, 53, 63 The other side wall 44, 67, 68 Tension bolt Holes 45, 65, 66 Tightening bolt hole 5 Core member 51 Rear wall 6 Pressing member 61 Front wall 64 Rear wall 7, 71 Bolts 8, 81 Nut

Claims (5)

In a wind and snow fence in which a net-like member is stretched in the left-right direction via a holding member between columns erected at intervals, the holding member includes a holding frame having a U-shaped plane extending in the vertical direction. , the end portion of the net-like member is wound, has a surface capable of coming into contact with one side wall and the back wall, and contacts with the core material arranged in the holding frame and the other side wall of the holding frame. pressing means for pressing the pressing member toward the back wall of the holding frame in a state in which the pressing member and the core material are in contact with each other on an inclined surface; By moving in the direction of the back wall of the holding frame, the end of the net-like member moves between the surface of the wound core material, the inclined surface of the pressing member, the back wall of the holding frame, and one of the side walls. A holding structure for a net-like member in a wind/snow fence, wherein the net-like member is sandwiched. 2. A structure for holding a net-like member in a wind and snow fence according to claim 1, wherein one side wall of the holding frame is slanted inward, and the surface of the core member in contact with the side wall is also formed on the corresponding slanted surface. . The other side wall of the holding frame protrudes from the back wall at a right angle that coincides with the advancing and retreating of the pressing member, and the contacting surface of the pressing member is also formed to have a corresponding angular surface. Or the holding structure of the net-like member in the wind and snow fence according to 2. 4. The structure for holding a net-like member in a wind and snow fence according to claim 1, wherein the pressing member has a stopper piece that abuts against the tip of the other side wall of the holding frame. 5. A structure for holding a net-like member in a wind and snow fence according to claim 1, wherein the holding frame, the pressing member and the core material are made of aluminum alloy.

Images