JP2018127836A - Panel and guard fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To wholly support a load applied to a furring strip and to make deformation difficult.SOLUTION: A panel comprises: a pair of upper and lower furring strips (10), multiple bars (50) arranged in parallel to one another between the pair of furring strips (10), and connecting members (30) arranged within the pair of respective furring strips (10) and connected with the bars (50) with the longitudinal end portions of the bars (50) interposed therein. The furring strips (10) and the connecting members (30) are connected with each other via inserted predetermined fasteners (20) at multiple positions between multiple connecting positions in a pair of the connecting members (30) connected with the bars (50).SELECTED DRAWING: Figure 3

Description

  The present invention relates to a panel corresponding to a flat ground and an inclined ground, and a protective fence including the panel.

Fences (protective fences) that are mainly used outdoors are known along the boundaries of walking paths, site boundaries, and along parks, promenades, and bicycle paths. The fence includes a panel and a column that is erected on the ground at a distance from each other, and the fence is formed between the columns.
Generally, a panel is sandwiched and held between a pair of trunk edges arranged at intervals in the vertical direction, a pair of connecting members arranged in the trunk edges, and the pair of connecting members. It has a pier. The connecting material and the vertical beam are connected to each other by a pin, and the vertical beam is rotatably connected to the connecting material. That is, the panel is configured corresponding to the installation location having a gradient. A hole is provided on the end side in the longitudinal direction of the connecting member, and the connecting member is attached to the column along with the trunk edge by inserting a bolt into the hole and fastening the nut (for example, Patent Document 1). reference).

JP 2011-214289 A

By the way, the load-bearing condition of the snow load on the panel installed in the snow-covered area is set larger than the load-bearing condition of the panel installed in the other area. For example, the cross-sectional area of the trunk edge is increased. It was necessary to increase the material strength of the trunk edge.
However, when unexpected snow accumulates on the protective fence installed in the snowy area, for example, in the configuration where the trunk edge and the connecting material are not in contact, the center part of the trunk edge may bend. If the middle part of the trunk edge bends and the inner peripheral surface of the trunk edge and the outer peripheral surface of the connecting material partially contact each other, there is a risk that a load at the trunk edge is locally applied to the connecting material and the panel is deformed. is there.

  Then, this invention is made | formed in view of the said subject, and it aims at providing the protective fence provided with the panel which can suppress the deformation | transformation by disperse | distributing the load concerning a trunk edge to the whole, and the said panel. To do.

  In order to solve the above-described problems, the present invention is arranged within a pair of upper and lower barrel edges, a plurality of bars arranged in parallel with each other between the pair of trunk edges, and the pair of trunk edges. A connecting member connected to the cross member in a state where an end portion in the longitudinal direction of the cross member is sandwiched, and the trunk edge and the connecting member are formed of the connecting member to which the cross member is connected. A predetermined connecting tool is inserted and connected to each other at a plurality of locations between the plurality of connecting locations.

  Moreover, it is preferable that the said trunk edge and the said connection material are mutually spaced apart.

  Moreover, it is preferable that the crosspiece is rotatably connected to the connecting members.

  The coupling tool includes a shaft portion, a bolt having a head having a diameter larger than the diameter of the shaft portion, and a nut that engages with the shaft portion of the bolt. It is preferable that the trunk edge is tightened toward the connecting member by the bolt and the nut.

  Further, the trunk edge and each connecting member are respectively formed with holes through which the connector is inserted, and the hole has a long axis along the longitudinal direction of the trunk edge and the connecting member. A hole is preferred.

  Furthermore, in order to solve the said subject, this invention is a guard fence, Comprising: Between a pair of trunk edges, the connection material arrange | positioned in each said pair of trunk edges, and a pair of said trunk edges A plurality of crosspieces connected to the connection member in a state where both end portions in the longitudinal direction are sandwiched between the connection members, and the trunk edge and the connection member are connected to the plurality of crosspieces. In a plurality of locations between the plurality of connection locations of the pair of connection members, a panel in which a predetermined connector is inserted and connected to each other is between the columns that are erected at intervals. It is arranged.

  According to the present invention, it is possible to suppress deformation by dispersing the load applied to the trunk edge over the entire panel.

It is a figure which shows the installation state of a protection fence. It is a figure explaining the structure of the panel which comprises a protective fence. It is a figure explaining the relationship between the trunk edge in a panel, a vertical cross, and a connection material. It is a figure explaining the connection with a trunk edge and a connection material. It is a graph which shows the test result about the relationship between the load to add and the displacement in a trunk edge in an Example and a comparative example.

  A preferred embodiment of the present invention will be described with reference to the drawings. The following embodiment is merely an example, and various embodiments can be employed within the scope of the present invention.

<Configuration of protective fence>
FIG. 1 is a diagram showing a state in which a protective fence is installed, and shows a protective fence installed on a flat ground and an inclined ground. FIG. 2 is a diagram for explaining the configuration of the panel of the protective fence, and is shown in a partially disassembled state. FIG. 3 is a diagram for explaining the relationship between the body edge, the vertical beam, and the connecting material in the panel. FIG. 3A is a cross-sectional view taken along the line CC in FIG. 2 showing the state where the connecting material and the vertical beam are connected. (B) is DD sectional drawing of FIG. 2 which showed the state with which the trunk edge and the connection material were connected. FIG. 4 is a diagram illustrating the connection between the trunk edge and the connecting member.
In the drawings, the extending direction (length direction) of the protective fence 100 is x, the vertical direction (height direction) is y, and the width direction (thickness direction) is z.

The protective fence 100 is installed at a boundary between a roadway and a sidewalk or a bicycle path (hereinafter referred to as “sidewalk”) or a boundary between a sidewalk or the like and an outer site (river, slope, etc.). . As shown in FIG. 1, the protective fence 100 can be installed on any terrain such as a flat land or an inclined land.
The guard fence 100 includes a plurality of vertical beam panels (panels) 1, columns 7 that are erected at intervals, and brackets B <b> 1 that attach the vertical beam panels 1 to the columns 7.

[Vertical cross panel]
As shown in FIG. 2, the vertical rail panel 1 is disposed in the trunk edge 10 with a pair of trunk edges 10 disposed in parallel with a gap in the vertical direction y in the installed state of the protective fence 100. The pair of connecting members 30 and a plurality of vertical bars (bars) 50 arranged at equal intervals between the trunk edges 10 along the extending direction x.

(Trunk edge)
As shown in FIG. 3, the body edge 10 is a cylindrical frame member having a slit 10 s having a constant width that extends continuously in the longitudinal direction by bending a metal plate. As shown in FIGS. 1 and 2, the trunk edge 10 extends continuously in the extending direction x of the guard fence 100, and has substantially the same length as the length between the columns 7.
The trunk edge 10 is provided vertically in the vertical direction y, and the trunk edge 10 provided on the upper side and the trunk edge 10 provided on the lower side have the same configuration. Below, the structure is demonstrated taking the case edge 10 provided in the lower side in the up-down direction y of the protection fence 100 as an example.

The cross-sectional shape of the trunk edge 10 is, for example, a home base type substantially pentagon. Specifically, the trunk edge 10 is connected to each other starting from a pair of side wall portions 11 facing and extending in parallel with each other, and starting from a lower end in the vertical direction y of the pair of side wall portions 11. A pair of connecting wall portions 12 to be joined (merged) and a pair of slit wall portions 13 bent at substantially right angles so as to approach each other from the upper end in the vertical direction y of the pair of side wall portions 11. A slit 10 s is formed between the pair of slit wall portions 13.
In addition, the part which a pair of connection wall part 12 connects is rounded and formed.
At both ends of each side wall 11 in the extending direction x, holes 11a through which bolts B for attaching the trunk edge 10 to the support column 7 via the bracket B1 are provided. The holes 11a provided at each end are provided in pairs at positions facing each other. The shape of the hole 11a is not particularly limited, and may be circular, elliptical, or oval.

Furthermore, between the holes 11a and 11a provided at both ends of each side wall portion 11 in the extending direction x, a coupling tool 20 such as a bolt and a nut for integrally coupling the trunk edge 10 and the coupling material 30 to each other. Are provided with a plurality of holes 11b, 11b. Each hole 11b is paired in the opposing side wall part 11. FIG. The hole 11b is a long hole having a long axis along the length direction x, and has an elliptical shape or an elliptical shape.
In addition, the number of the holes 11b may be provided in the middle position of the holes 11a and 11a, and can be freely set.

(Connecting material)
As shown in FIG. 3, the connecting member 30 is disposed in each pair of upper and lower body edges 10, and a plurality of vertical bars 50 are connected in parallel to each other at equal intervals in the extending direction x. The connecting member 30 includes a pair of L-shaped members formed by bending an elongated metal plate and having a substantially L-shaped cross section. The connecting member 30 has a vertical portion 31 extending in the vertical direction y and a horizontal portion 32 extending in the width direction z from the upper end of the vertical portion 31 in the vertical direction y.

As shown in FIG. 2, holes 31a into which bolts B for attaching the connecting material 30 to the support column 7 are inserted through brackets B1 at both ends of the vertical portion 31 of the connecting material 30 in the extending direction x. It has been. The holes 31a provided at each end are provided in pairs at positions facing each other. The shape of the hole 31a is not particularly limited, but is preferably elliptical or oval.
Further, a plurality of holes 31b, 31b,... Are provided at equal intervals between the holes 31a provided at both ends of the connecting member 30 in the extending direction x. A connecting tool 40 is inserted through each hole 31b to connect the vertical beam 50 between the pair of connecting members 30 (see FIG. 3A). The connecting tool 40 may be a rivet, a pin, a bolt / nut, or the like.
Further, a plurality of holes 31c, 31c,... Are provided between the longitudinal bars 50, 50. That is, the hole 31c is provided between a plurality of connecting portions of the pair of connecting members 30 to which the vertical bars 50 are connected. The connecting tool 20 is inserted through the hole 31c, and the trunk edge 10 and the connecting member 30 are integrally connected to each other. The shape of the hole 31 c is a long hole having a long axis along the longitudinal direction of the connecting member 30. The shape of the long hole is elliptical or oval.

The connector 20 includes a bolt 23 having a shaft portion 21 having a screw thread, a head portion 22 having a larger diameter than the shaft portion, and a nut 24 that engages with a screw thread 21a formed on the shaft portion 21. Prepare. The nut 24 is formed as a cap nut.
Further, the connector 20 includes a washer 25 disposed between the nut 24 and the outer peripheral surface of the side wall 11 of the trunk edge 10 in a state where the bolt 23 and the nut 24 are fastened.
When the shaft portion 21 is inserted into the hole 11b of the trunk edge 10 and the hole 31c of the connecting member 30, only a slight gap is formed between the shaft portion 21 and the holes 11b and 31c in the short axis direction of the holes 11b and 31c. It has such a diameter. That is, the shaft portion 21 has substantially the same diameter as the dimension in the minor axis direction of the hole 11 b of the trunk edge 10 and the hole 31 c of the connecting member 30.

(Vertical cross)
A plurality of vertical bars 50 are arranged in parallel with each other in the extending direction x between the pair of upper and lower body edges 10, specifically, between each pair of upper and lower connecting members 30. The vertical beam 50 is formed of an elongated metal cylinder. Flat portions 51 are formed by crushing at both ends in the longitudinal direction of the vertical beam 50, and each flat portion 51 is connected to the hole 31 b of the connecting material 30 between the connecting materials 30, and the connecting tool 40 is provided. A hole (not shown) to be inserted is formed.

[Support]
The column 7 is a steel pipe formed in a cylindrical shape. A bracket B1 is attached to an upper end portion of the support column 7 and a lower end portion spaced a predetermined distance from the installation surface. The trunk edge 10 and the connecting material 30 are attached to the column 7 via the bracket B1.

<Assembly of the vertical beam panel>
Next, a procedure for assembling the vertical beam panel 1 will be described. First, two pairs of connecting members 30 are prepared, and vertical bars 50 are arranged between each pair of connecting members 30. As for a pair of connection material 30, the vertical part 31 is mutually back-to-back.
The vertical bar 50 is disposed at a position where the hole in the flat portion 51 of the vertical bar 50 and the hole 31b of the connecting member 30 are aligned. Next, the vertical beam 50 is rotatably connected to the connection material 30 by inserting, for example, a rivet 40 into the hole 31b of the connection material and the hole of the vertical beam 50 and caulking. That is, the connecting member 30 and the vertical beam 50 constitute a parallel link mechanism by allowing the vertical beam 50 to rotate with respect to the connecting material 30 about the rivet 40.

  Next, the trunk edge 10 is slid on the upper and lower connecting members 30 to accommodate the connecting member 30 in the trunk edge 10. Specifically, the connecting material 30 is accommodated through one opening of the trunk edge 10 and the slit 10s in the extending direction x, and the trunk edge 10 is slid along the extending direction x. When the trunk edge 10 is slid and moved to a position where the end portion thereof and the end portion of the connecting member 30 are substantially overlapped, the hole 11a of the trunk edge 10, the hole 31a of the connecting member 30, and the hole 11b of the trunk member 10 are The holes 31c of the connecting material 30 are aligned (overlapped).

  In a state where the hole 11b of the trunk edge 10 and the hole 31c of the connecting member 30 overlap, the bolt 23 of the connector 20 is inserted from the outside of one side wall portion 11 of the trunk edge 10 and outward from the other side wall portion 11. A nut 24 is fastened to the protruding shaft portion 21. In the inserted state into the hole 11b and the hole 31c, the shaft portion 21 of the bolt 23 has only a slight gap or is in contact with the inner peripheral surface of the hole 11b and the hole 31c.

Even when a load is applied to the outer periphery of the trunk edge 10 by the vertical beam panel 1 configured in this way, the trunk edge 10 and the connecting member 30 are integrated with each other via the bolt 23 of the connecting tool 20. Since they are connected, the trunk edge 10 and the connecting member 30 move together. That is, in the vertical beam panel 1, a composite cross section is formed by the trunk edge 10 and the connecting material 30.
In addition, the test about whether the synthetic | combination cross section was formed with the trunk edge 10 and the connection material 30 which were connected via the connection tool 20 was done. Specifically, an example according to the present embodiment in which the trunk edge and the connecting material are connected to each other on a support base having a predetermined interval (cross section coefficient of the trunk edge and the connecting material: 7688 ( mm ³ )), and a comparative example of only the trunk edge (section modulus of the trunk edge only: 4661 (mm ³ )), a test was performed in which a load was applied in the vertical direction at one central portion.
FIG. 5 is a graph showing the test results on the relationship between the applied load and the displacement at the trunk edge in the examples and comparative examples.
In addition, in the test, the load was applied on the support base with an interval of 900 (mm) between the example and the comparative example.

As shown in FIG. 5, it can be seen that there is a large difference in displacement (mm) immediately after the load is applied in the example and the comparative example. For example, the design yield load calculated based on the section modulus of the example was about 10080 N, and the displacement amount of the comparative example at 10080 N was 7.5 mm. In the comparative example, when a load of 10080 N or more was applied, residual displacement (yield) began to occur at the center of the trunk edge. In contrast, the displacement amount of the example at 10080 N was 4.3 mm, and no residual displacement occurred.
The example which concerns on the vertical beam panel 1 with which the trunk edge and the connection material were mutually connected had a larger elastic range than a comparative example, and the load until yielding was also higher compared with the comparative example. That is, in the Example, it was able to be evaluated that the synthetic | combination cross section was formed by the connection of the trunk edge and the connection material through the connection tool. Thus, it was found that the example in which the trunk edge and the connecting material were integrally connected was less likely to be deformed than the comparative example having only the trunk edge and had high load resistance.

  According to the vertical cross panel 1, for example, the upper trunk edge 10 in the vertical direction y forms a composite cross section with the connecting member 30, so that the load applied to the trunk edge 10 is connected via the connecting member 20. 30, it can be transmitted to the entire vertical beam panel 1 to each vertical beam 50. That is, in the vertical beam panel 1, a local load due to the load can be dispersed to the connecting member 30 via the connecting tool 20 without being fastened to the trunk edge 10.

  Further, since the trunk edge 10 and the connecting member 30 are integrally connected to each other via the connecting tool 20, a gap is provided between the inner peripheral surface of the portion of the trunk edge 10 to which a load is applied and the connecting member 30. Even if it is, the load can be transmitted to the entire vertical beam panel 1 through the connector 20.

In addition, rainwater or snow may enter the gap between the pair of connecting members 30 on the lower side of the vertical rail panel 1 in the installed state of the protective fence 100, for example, through the slit 10s of the trunk edge 10. In the conventional vertical beam panel, the trunk edge and the connecting material are only connected together with the bracket at each end in the longitudinal direction. In such a conventional configuration, the volume expands due to repeated freezing and thawing of water and snow, the cross section of the connecting material changes, and it is difficult to keep the cross sectional area of the connecting material constant.
On the other hand, the trunk edge 10 of the vertical beam panel 1 is firmly connected to the connecting material 30 via a bolt 23 and a nut 24 between both ends in the extending direction x so as to sandwich the pair of connecting materials 30. Has been. Thus, even when water or snow freezes and the volume expands, the cross-sectional area of the pair of connecting members 30 can be kept constant.

Moreover, since the vertical crosspiece panel 1 is comprised as a parallel link mechanism, as shown in FIG. 1, the protection fence 100 can be installed ranging from a flat ground to an inclined ground. When the vertical beam panel 1 is installed between the columns 7 erected on the inclined ground, the trunk edge 10 is integrally connected to the pair of connecting members 30, so that the vertical beam panel 1 is inclined. However, the trunk edge 10 does not slide along the connecting member 30. Thereby, the vertical rail panel 1 can be easily attached to the protective fence 100 on the slope.
Further, the hole 11b of the trunk edge 10 through which the bolt 23 is inserted and the hole 31b of the connecting member 30 are formed as long holes having long axes in the extending direction x. Thus, when the trunk edge 10 is put on the connecting member 30, even if the axial centers of the holes 11b and 31b are shifted in the longitudinal direction of the vertical beam panel 1, the dimensional error is corrected (the holes 11b and 31b overlap). Since the portion is secured), the bolt 23 can be inserted.

<Others>
Note that the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the present invention. For example, the connecting member 30 may be integrally formed by connecting end portions of the vertical portion 31 opposite to the horizontal portion 32 to each other.

1. Vertical panel (panel)
7 Strut 10 Body edge 11a, 11b Hole 20 Connecting tool 21 Shaft part 22 Head part 23 Bolt 24 Nut 30 Connecting material 31a, 31b, 31c Hole 50 Vertical beam

Claims (6)

A pair of upper and lower torso edges;
A plurality of bars arranged in parallel with each other between the pair of trunk edges;
A connecting member disposed in each of the pair of trunk edges and connected to the crosspiece in a state of sandwiching an end portion in the longitudinal direction of the crosspiece;
With
The trunk edge and the connecting material are connected to each other by inserting a predetermined connecting tool at a plurality of locations between a plurality of connecting locations of the connecting material to which the crosspieces are connected. panel.   The panel according to claim 1, wherein the trunk edge and the connecting member are separated from each other.   The panel according to claim 1, wherein the crosspiece is rotatably connected to the connecting members. The connector is
A bolt having a shaft portion in which a thread is formed, and a head portion having a diameter larger than the diameter of the shaft portion;
A nut that engages the shaft of the bolt;
With
The panel according to any one of claims 1 to 3, wherein the coupling tool tightens the trunk edge toward the coupling member by the bolt and the nut.   The trunk edge and each connecting member are respectively formed with holes through which the connector is inserted, and the hole is a long hole having a long axis along the longitudinal direction of the trunk edge and the connecting member. The panel according to claim 1, wherein the panel is provided.   A pair of trunk edges, a coupling member disposed in each pair of trunk edges, and the pair of trunk edges, in a state where both ends in the longitudinal direction are sandwiched between the coupling members. A plurality of crosspieces connected to a material, and the trunk edge and the connection material are at a plurality of locations between a plurality of connection places of the pair of connection materials to which the plurality of crosspieces are connected, A protective fence, wherein panels each having a predetermined connecting member inserted therein and connected to each other are arranged between columns that are erected at intervals.

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