JP2024031039A - Guard fence - Google Patents

Abstract

To provide a guard fence with a high degree of freedom for the height locating a lighting system.SOLUTION: A guard fence of the present disclosure comprises a plurality of support pillars arranged at constant intervals apart from each other in a longer direction in which a road extends, beams supported by the support pillars and extending in the longer direction, a plurality of rails extending in the longer direction between the support pillars and arranged for mounting a lighting system at a lower part of a vertical direction relative to the beam, and a plurality of brackets connecting end parts of the rail longer direction and support pillars. The support pillar has a pair of side plates extending in the longer direction and the vertical direction and arranged apart from each other in a width direction intersecting both longer direction and vertical direction, and a web plate arranged between the pair of side plates, extending in the width direction and the vertical direction, and continuing both end parts of the width direction to the pair of side plates. The bracket has a web connection part extending along the web plate and connected to the web plate, and a rail connection part extending from the web connection part to the longer direction and connected to an end part of a rail longer direction.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to a protective fence, and more particularly to a protective fence to which a lighting device can be attached.

A protective fence is an example of a structure installed on a road or a bridge. The guard fence includes a beam extending along the road and a plurality of supports that support the beam and arrange the beam at a predetermined height. Further, the protective fence disclosed in Patent Document 1 below can be attached with a lighting device that illuminates the road surface. This protective fence includes a plurality of attachment parts in addition to the beam and the plurality of supports described above. The attachment part extends in the vertical direction, and the upper part of the attachment part is fastened to the beam. Then, a lighting device is attached to the lower part of the attachment part. Therefore, according to the protective fence of Patent Document 1, the lighting device is arranged so as to hang down from the beam.

Patent No. 7090004

By the way, according to the protective fence disclosed in Patent Document 1, the lighting device hanging from the beam is located at a relatively high position. If the lighting device is located high, the driver may be dazzled, which may impair safe driving of the vehicle. Furthermore, if the lighting device is located high, light will leak to areas other than the road surface, which will have a large impact on surrounding animals and plants. For these reasons, it is desired to be able to freely set the height of the lighting device regardless of the height of the beam.

The present disclosure has been made in view of the above, and an object of the present disclosure is to provide a protective fence with a high degree of freedom regarding the height at which a lighting device is arranged.

In order to achieve the above object, a protective fence according to one aspect of the present disclosure includes a plurality of columns arranged at regular intervals in the longitudinal direction in which a road extends, and a plurality of columns supported by the columns and arranged in the longitudinal direction. an extending beam, a plurality of rails for mounting a lighting device extending in the longitudinal direction between the pillars, and a plurality of brackets connecting the ends of the rails in the longitudinal direction and the pillars. Be prepared. The support column is arranged between a pair of side plates extending in the longitudinal direction and the vertical direction and spaced apart from each other in a width direction intersecting both the longitudinal direction and the vertical direction, and a pair of the side plates. , a web plate extending in the width direction and the vertical direction, and having both ends in the width direction continuous with a pair of side plates. The bracket includes a web connecting part that extends along the web plate and is connected to the web plate, and a web connecting part that extends in the longitudinal direction from the web connecting part and is connected to the end of the rail in the longitudinal direction. and a rail connecting portion.

According to the present disclosure, the rails are attached to the web plate via brackets. Further, the web plate extends in the vertical direction, and the mounting position of the bracket can be freely changed in the height direction (vertical direction). By appropriately setting the attachment position of the bracket in the vertical direction, the rail and the lighting device attached to the rail can be set to a desired height.

In a preferred embodiment of the above-mentioned protective fence, the rail has a C-shaped rail main body whose cross-sectional shape when cut in the width direction and the vertical direction opens toward the road side, and the opening of the rail main body is closed. It is equipped with an occlusion plate. The rail connecting portion is arranged in an internal space surrounded by the rail body and the closing plate.

According to the configuration, the rail connecting portion is disposed within the rail and is not visible from the outside. Therefore, the aesthetic appearance of the protective fence is improved.

In a preferred embodiment of the above-mentioned protective fence, the web plate has a first through hole for wiring that penetrates in the longitudinal direction. The web connecting portion has a second through hole for wiring that penetrates in the longitudinal direction and overlaps with the first through hole for wiring in the longitudinal direction.

According to the configuration, the electrical wiring arranged in the internal space of the rail can be arranged in the internal space of the adjacent rail by passing through the first through hole for wiring and the second through hole for wiring. Therefore, the electrical wiring is not visible and the aesthetic appearance of the protective fence is improved.

In a preferred embodiment of the above-mentioned protective fence, the first through hole for wiring and the second through hole for wiring are elongated holes that are longer in the vertical direction than in the width direction.

According to the above configuration, many electrical wirings can be passed through.

According to the protective fence of the present disclosure, there is a high degree of freedom regarding the height at which the lighting device is arranged.

FIG. 1 is a diagram of a protective fence according to an embodiment viewed from the road side. FIG. 2 is a view of the support column of the embodiment viewed from the second longitudinal direction. FIG. 3 is a cross-sectional view of the protective fence, and more specifically, a cross-sectional view taken along the line III--III in FIG. 2. As shown in FIG. FIG. 4 is a sectional view taken along the line IV-IV in FIG. FIG. 5 is a diagram of the vicinity of the bracket viewed from the road side. FIG. 6 is a view of the rail with the blocking plate removed from the road side.

Embodiments for implementing the present disclosure will be described in detail with reference to the drawings. The present disclosure is not limited to the content described in the following description. Further, the constituent elements described below include those that can be easily assumed by those skilled in the art and those that are substantially the same. Furthermore, the components described below can be combined as appropriate.

FIG. 1 is a diagram of a protective fence according to an embodiment viewed from the road side. Note that in the description of this embodiment, the direction in which the road 200 extends is referred to as a longitudinal direction. Regarding the longitudinal direction, when looking at the protective fence 100 from the road 200, the right-hand direction is referred to as a first longitudinal direction X1, and the left-hand direction is referred to as a second longitudinal direction X2. The direction in which the road 200 and the protective fence 100 are lined up is referred to as the width direction. Moreover, among the width directions, the direction in which the protective fence 100 is arranged when viewed from the road 200 is referred to as a first width direction Y1 (see FIG. 2), and the opposite direction is referred to as a second width direction Y2 (see FIG. 2). The downward direction in the vertical direction is simply referred to as the downward direction Z1, and the upward direction in the vertical direction is simply referred to as the upward direction Z2.

As shown in FIG. 1, the protective fence 100 of the embodiment includes a foundation block 110, a plurality of support columns 1, a first beam 20, a second beam 30, a plurality of brackets 40, and a plurality of brackets 40 for attaching lighting devices. rail 50, and a plurality of lighting devices 60 (only one is shown in FIG. 1). First, the basic configuration of each configuration will be explained.

The foundation block 110 is a concrete structure extending in the longitudinal direction. The foundation block 110 protrudes above the road surface 201 of the road 200 in an upward direction Z2. The support column 1 is erected on the upper surface 111 of the foundation block 110. The struts 1 are arranged at regular intervals in the longitudinal direction.

The first beam 20 has a plurality of first beam members 21 . The first beam member 21 extends in the longitudinal direction. The plurality of first beam members 21 are arranged in the longitudinal direction. The longitudinal end portion 21a of each first beam material 21 is connected to the longitudinal end portion 21b of another first beam material 21 arranged next to it. Thereby, the first beam 20 extends continuously in the longitudinal direction.

The second beam 30 has a plurality of second beam members 31. The second beam member 31 extends in the longitudinal direction. The plurality of second beam members 31 are arranged in the longitudinal direction. The longitudinal end portion 31a of each second beam member 31 is connected to the longitudinal end portion 31b of another second beam member 31 arranged next to it. Thereby, the second beam 30 extends continuously in the longitudinal direction.

The first beam 20 is attached to the upper end of the column 1. The second beam 30 is attached to the vertical center of the support column 1 . The first beam 20 and the second beam 30 make it difficult for a vehicle (not shown) traveling on the road 200 to deviate from the road 200.

The first beam 20 and the second beam 30 are separated from each other in the vertical direction. When viewed from the width direction, the rail 50 is arranged between the first beam 20 and the second beam 30. Additionally, the rails 50 extend longitudinally between the columns 1. A longitudinal end of the rail 50 is connected to the support column 1 via a bracket 40. A lighting device 60 that illuminates the road surface 201 is attached to the rail 50. Next, details of each configuration will be explained.

FIG. 2 is a view of the support column of the embodiment viewed from the second longitudinal direction. As shown in FIG. 2, the upper surface 111 of the foundation block 110 is formed flat. Anchor bolts 120 are embedded in the foundation block 110. A portion of the shaft portion 121 of the anchor bolt 120 projects upward from the upper surface 111.

The vertical center of the support 1 is located further in the first width direction Y1 than both vertical ends of the support 1. Therefore, the support column 1 has a gentle arc shape when viewed from the longitudinal direction. The column 1 includes a lower plate 2 disposed on the upper surface 111 of the foundation block 110, a column 3 extending upward from the lower plate 2, and an upper plate 4 located at the upper end of the column 3.

The lower plate 2 extends in the width direction and the longitudinal direction. The lower plate 2 is penetrated by the shaft portion 121 of the anchor bolt 120. Further, the lower plate 2 is tightened by a bolt 122 that is screwed into the shaft portion 121. Thereby, the support column 1 is fixed to the foundation block 110.

FIG. 3 is a cross-sectional view of the protective fence, and more specifically, a cross-sectional view taken along the line III--III in FIG. 2. As shown in FIG. As shown in FIG. 3, the columnar portion 3 has an H-shaped cross section when cut in the horizontal direction. Therefore, the column portion 3 has a front side plate 5, a rear side plate 6, and a web plate 7. The front side plate 5 and the rear side plate 6 extend in the longitudinal direction and the vertical direction. The front side plate 5 and the rear side plate 6 are spaced apart from each other in the width direction. Further, the front side plate 5 is arranged in the second width direction Y2 with respect to the web plate 7. The rear side plate 6 is arranged in the first width direction Y1 with respect to the web plate 7. The web plate 7 extends in the width direction and the vertical direction. Both ends of the web plate 7 in the width direction are continuous with the front side plate 5 and the rear side plate 6.

As shown in FIG. 2, the front plate 5 has a surface 5a facing the second width direction Y2. A pedestal 5b that protrudes from the surface 5a toward the second width direction Y2 is provided at a vertically intermediate portion of the front plate 5. The pedestal 5b is formed in a concave shape, with the vertical center portion being depressed in the first width direction Y1. The front plate 5 is provided with a bolt 32 that passes through the pedestal 5b. The head of the bolt 32 is arranged in the second width direction Y2 with respect to the pedestal 5b. Note that a nut 33 is screwed onto the shaft portion of the bolt 32 to prevent the bolt 32 from coming off. Further, a second beam material 31 (second beam 30) is arranged in the second width direction Y2 of the pedestal 5b.

The second beam material 31 has a cylindrical shape. A T-slot groove 34 is provided on the surface of the second beam member 31 facing in the first width direction Y1 (the surface facing the pedestal 5b). The head of the bolt 32 is inserted into the T-slot groove 34. Thereby, the second beam material 31 (second beam 30) is attached to the support column 1.

The upper plate 4 extends in the width direction and the longitudinal direction. The upper side plate 4 is continuous with the upper end of the web plate 7, the upper end of the front side plate 5, and the upper end of the rear side plate 6. The upper plate 4 has a concave shape in which the center portion in the width direction is depressed downward Z1. Furthermore, a protruding piece 4a that protrudes in the second width direction Y2 is provided at the end of the upper plate 4 in the second width direction Y2. The upper plate 4 is provided with a bolt 22 that passes through it in the vertical direction. The head of the bolt 22 is located above the upper plate 4 Z2. Note that a nut 23 is screwed onto the shaft portion of the bolt 22 to prevent the bolt 22 from coming off. Further, above Z2 of the upper plate 4, a first beam material 21 (first beam 20) is arranged.

The first beam material 21 is a cylindrical member. A T-slot groove 24 is provided on the surface of the second beam member 31 that faces the upper plate 4 . The head of the bolt 22 fits into this T-slot groove 24. Thereby, the first beam 20 is fixed to the support column 1. Further, the first beam member 21 is provided with a recess 25 that fits into the protruding piece 4a. Therefore, the first beam 20 is firmly fixed to the support column 1.

The web plate 7 is provided with a first bolt through hole 8, a second bolt through hole 9, and a first wiring through hole 10 that penetrate the web plate 7 in the longitudinal direction. These through holes are arranged in the order of the first bolt through hole 8, the first wiring through hole 10, and the second bolt through hole 9 from above Z2. Further, the vertical positions of the first bolt through hole 8, the second bolt through hole 9, and the first wiring through hole 10 are below the upper plate 4 at Z1 and above the pedestal 5b at Z2. It has become.

The first through hole 10 for wiring is a long hole that is longer in the vertical direction than in the width direction. Note that the virtual line C shown in FIG. 2 passes through the center in the width direction of the first through hole 10 for wiring. The first through hole 10 for wiring is inclined with respect to the vertical direction (see imaginary line C in FIG. 3). Therefore, the upper part of the first through hole 10 for wiring is arranged in the second width direction Y2 than the lower part of the first through hole 10 for wiring.

The first bolt through hole 8 and the second bolt through hole 9 are holes through which shaft portions of bolts 11 and 13 (see FIG. 5) for attaching the bracket 40 to the support column 1 are inserted. The first bolt through hole 8 and the second bolt through hole 9 are formed in a circular shape. Further, the centers of the first bolt through hole 8 and the second bolt through hole 9 are located on an extension of the imaginary line C. Therefore, the first bolt through hole 8 is arranged further in the second width direction Y2 than the second bolt through hole 9.

As shown in FIG. 3, the bracket 40 is formed into an L-shape when viewed from the vertical direction. The bracket 40 has a first bracket 41 arranged in the first longitudinal direction X1 with respect to the web plate 7, and a second bracket 42 arranged in the first longitudinal direction X1. The first bracket 41 and the second bracket 42 are formed symmetrically with respect to the web plate 7. Therefore, in the following explanation, the second bracket 42 will be explained as a representative example, and the explanation of the first bracket 41 will be omitted.

The second bracket 42 has a web connecting portion 43 extending along the web plate 7 and a rail connecting portion 44 extending in the longitudinal direction (second longitudinal direction X2) from the web connecting portion 43. . Further, the web connecting portion 43 is arranged between the front side plate 5 and the rear side plate 6.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. As shown in FIG. 4, the web connecting portion 43 extends in the width direction and the vertical direction. Further, the web connecting portion 43 is formed in a rectangular shape that is longer in the vertical direction than in the width direction.

FIG. 5 is a diagram of the vicinity of the bracket viewed from the road side. The web connecting portion 43 is provided with a third bolt through hole 45 and a fourth bolt through hole 46 . Although not particularly illustrated, the third bolt through hole 45 and the fourth bolt through hole 46 are formed in a circular shape when viewed from the longitudinal direction.

The third bolt through hole 45 is arranged in the second longitudinal direction X2 of the first bolt through hole 8. On the other hand, the third bolt through hole 45 of the first bracket 41 is arranged in the first longitudinal direction X1 of the first bolt through hole 8 . Therefore, the third bolt through hole 45 of the second bracket 42, the first bolt through hole 8, and the third bolt through hole 45 of the first bracket 41 communicate in this order from the second longitudinal direction X2.

The shaft portion of the bolt 11 is inserted through the third bolt through hole 45 of the second bracket 42, the first bolt through hole 8, and the third bolt through hole 45 of the first bracket 41. The second bracket 42, web plate 7, and first bracket 41 are tightened by the nut 12 screwed onto the shaft portion of the bolt 11 and the head of the bolt 11.

Similarly, the fourth bolt through hole 46 is arranged in the second longitudinal direction X2 of the second bolt through hole 9. Further, in the first longitudinal direction X1 of the second bolt through hole 9, a fourth bolt through hole 46 of the first bracket 41 is arranged. Therefore, the fourth bolt through hole 46 of the second bracket 42, the second bolt through hole 9, and the fourth bolt through hole 46 of the first bracket 41 communicate in this order from the second longitudinal direction X2.

The shaft portion of the bolt 13 is inserted through the fourth bolt through hole 46 of the second bracket 42, the second bolt through hole 9, and the fourth bolt through hole 46 of the first bracket 41. The second bracket 42, web plate 7, and first bracket 41 are tightened by the nut 14 screwed onto the shaft portion of the bolt 13 and the head of the bolt 13.

As described above, the bracket 40 is fixed to the web plate 7. Further, the first bracket 41 and the second bracket 42 are fastened together. Therefore, the number of fasteners is reduced compared to the case where the first bracket 41 and the second bracket 42 are each fastened separately.

As shown in FIG. 4, the web connecting portion 43 is provided with a second through hole 47 for wiring. The second wiring through hole 47 is arranged between the third bolt through hole 45 and the fourth bolt through hole 46 . The second through hole 47 for wiring has the same shape as the first through hole 10 for wiring. In other words, the second wiring through hole 47 is a long hole that is longer in the vertical direction than in the width direction. The second wiring through hole 47 is inclined with respect to the vertical direction. Therefore, the upper part of the second through hole 47 for wiring is located further in the second width direction Y2 than the lower part of the second through hole 47 for wiring.

The second through hole 47 for wiring is arranged in the second longitudinal direction X2 of the first through hole 10 for wiring, and communicates with the first through hole 10 for wiring. Further, the second wiring through-hole 47 of the first bracket 41 arranged in the first longitudinal direction X1 of the web board 7 also communicates with the first wiring through-hole 10 . According to this, the electrical wiring 62 of the lighting device 60 is connected to the second wiring through-hole 47 of the second bracket 42, the first wiring through-hole 10, and the second wiring through-hole 47 of the first bracket 41. , it can be extended to the opposite side of the column 1 (see FIG. 6).

As shown in FIG. 5, the rail connecting portion 44 extends in the vertical direction and the longitudinal direction. The rail connecting portion 44 is formed into a rectangular shape when viewed from the width direction. The rail connecting portion 44 extends further in the second longitudinal direction X2 than the edge 6a of the rear side plate 6 in the second longitudinal direction X2. Two circular through holes 48 passing through in the width direction are provided in a portion of the rail connecting portion 44 that protrudes beyond the edge 6a in the second longitudinal direction X2. The shaft portion of the bolt 56 is inserted into the through hole 48, as shown in FIGS. 3 and 4.

As shown in FIG. 4, the rail 50 includes a C-shaped rail main body 51 whose cross-sectional shape when cut in the width direction and vertical direction opens toward the road side, and a closing plate 58 that closes the opening of the rail main body 51. , is equipped with. That is, the rail 50 has a cylindrical shape and has an internal space S. Furthermore, side openings 55 (see FIGS. 3 and 5) are provided at both ends of the rail 50 in the longitudinal direction.

The rail main body 51 includes a first plate part 52 extending in the vertical and longitudinal directions, a second plate part 53 extending in the second width direction Y2 from the upper end of the first plate part 52, and a second plate part 53 extending from the lower end of the first plate part 52 in the second width direction Y2. 2. The third plate portion 54 extends in the width direction Y2. Although not particularly illustrated, the first plate portion 52 is provided with two through holes through which the shaft portions of the bolts 56 are inserted.

As shown in FIG. 3, the side opening 55 of the rail 50 opens toward the web plate 7 of the column 1. Moreover, the rail 50 is arranged at the same height as the bracket 40. The side opening 55 of the rail 50 thus faces the web connection 43 of the bracket 40. The rail connecting portion 44 of the bracket 40 enters the internal space S through the side opening 55. Thereby, a part of the rail connecting part 44 is arranged in the internal space S.

A part of the rail connecting part 44 is arranged in the second width direction Y2 of the first plate part 52, and is in contact with the first plate part 52 from the second width direction Y2. The first plate part 52 and the rail connecting part 44 are penetrated by the shafts of two bolts 56, and are tightened by the heads of the bolts 56 and nuts 57 that are threaded onto the shafts of the bolts 56. Thereby, the rail main body 51 is fixed to the support column 1 via the bracket 40.

As shown in FIG. 5, the longitudinal end portion 51a of the rail body 51 is spaced apart from the web plate 7 in the longitudinal direction. Therefore, the side opening 55 is not closed by the web plate 7. Further, a plate member 70 extending toward the web plate 7 is provided below the second plate portion 53. The plate material 70 covers the space between the side opening 55 and the web plate 7 . According to this, it is difficult for rainwater to enter the side opening 55. Further, the plate material 70 covers the upper side of the electrical wiring 62 (see FIG. 6), which will be described later, of the lighting device 60. Therefore, the plate material 70 also has the role of protecting the electrical wiring 62 from the outside.

As shown in FIG. 4, a first rib 53a that protrudes downward is provided on the second plate portion 53 closer to the second width direction Y2. Furthermore, a second rib 54a that protrudes upward is provided on the third plate portion 54 closer to the second width direction Y2. The upper end and lower end of the closing plate 58 are in contact with the first rib 53a and the second rib 54a from the second width direction Y2. The upper and lower ends of the closing plate 58 are fastened to the first rib 53a and the second rib 54a by a fastener 71. Thereby, the closing plate 58 is fixed to the rail body 51.

As shown in FIG. 1, the closing plate 58 is divided into three parts in the longitudinal direction. In other words, the closing plate 58 has a central closing plate 58a disposed at the longitudinal center of the rail body 51 and two end closing plates 58b disposed at both longitudinal ends. The central blocking plate 58a is provided with a rectangular transparent portion 59 when viewed from the second width direction Y2. The transmitting portion 59 is made of a material through which light can pass. Note that the portion of the central closing plate 58a other than the transmitting portion 59 and the end closing plate 58b are formed of a metal material and do not transmit light.

FIG. 6 is a view of the rail with the blocking plate removed from the road side. The lighting device 60 is formed long in the longitudinal direction. The lighting device 60 is arranged in the internal space S of the rail 50. The lighting device 60 is fixed to the first plate member 52 with fasteners 61. Note that in the present disclosure, the lighting device 60 may be attached to the rail body 51 via a bracket or the like, and the method of fixing the lighting device 60 is not limited. The lighting device 60 is arranged at the center of the rail body 51 in the longitudinal direction. Then, the light emitted from the illumination device 60 is transmitted through the transmission portion 59 of the central blocking plate 58a, and is emitted onto the road surface 201.

Electric wiring 62 is provided at the end of the lighting device 60 in the longitudinal direction. This electrical wiring 62 extends in the longitudinal direction along the rail 50 in the interior space S. Further, the electrical wiring 62 extends outside the internal space S from the side opening 55 of the rail 50. The electrical wiring 62 passes through one first through hole 10 for wiring and two second through holes 47 for wiring, and extends to the opposite side of the web plate 7 (see FIG. 5). It extends into the internal space S from the side opening 55 of the adjacent rail 50.

Next, the effects of the protective fence 100 of the embodiment will be explained. The rail 50 that supports the lighting device 60 is supported by the pillar 1 via the bracket 40. Further, regarding the height of the bracket 40, the height of the bracket 40 can be freely changed by shifting the positions of the first bolt through hole 8 and the second bolt through hole 9 in the vertical direction. Therefore, the heights of the rail 50 and the lighting device 60 can be set freely regardless of the heights of the first beam 20 and the second beam 30.

Further, the web connecting portion 43 of the bracket 40 is arranged between the front side plate 5 and the rear side plate 6. Further, a part of the rail connecting portion 44 of the bracket 40 is arranged in the internal space S of the rail 50. Note that the remainder of the rail connecting portion 44 is arranged between the front side plate 5 and the rear side plate 6. As described above, the bracket 40 is difficult to be visually recognized from the outside, and the aesthetic appearance of the protective fence 100 is improved.

Further, bolts 11 and 13 and nuts 12 and 14 for fastening the web plate 7 and the bracket 40 are arranged between the front side plate 5 and the rear side plate 6. Further, the shaft portion of a bolt 56 and a nut 57 that fasten the bracket 40 and the rail body 51 are arranged in the internal space S of the rail 50 (see FIGS. 3 and 4). Therefore, the fasteners are difficult to see from the outside, and the aesthetic appearance of the protective fence 100 is improved.

Further, the electric wiring 62 can be placed in the internal space S of the adjacent rail 50 by passing through the first through hole 10 for wiring and the second through hole 47 for wiring. Therefore, the electric wiring 62 is difficult to be visually recognized from the outside, and the aesthetic appearance of the protective fence 100 is improved.

Moreover, since the first through hole 10 for wiring and the second through hole 47 for wiring are elongated holes, a plurality of electric wirings 62 can be passed through them.

Although the embodiments have been described above, the present disclosure is not limited to the examples shown in the embodiments. For example, although the first through hole 10 for wiring and the second through hole 47 for wiring are elongated holes extending in the vertical direction, they may be elongated holes extending in the width direction. Alternatively, the first through hole 10 for wiring and the second through hole 47 for wiring may not be long holes but may be circular or square holes. Alternatively, the present disclosure may be a protective fence that does not have the first through hole 10 for wiring and the second through hole 47 for wiring.

Further, although the rail 50 is arranged between the first beam 20 and the second beam 30, it may be located below the second beam 30, for example, and especially regarding the height of the rail 50 and the lighting device 60, There are no restrictions. Furthermore, although the rail connecting portion 44 of the bracket 40 is arranged in the internal space S of the rail 50, in the present disclosure, the rail connecting portion 44 may be placed outside the rail 50. Further, in the embodiment, fasteners (bolts 11, 13 and nuts 12, 14) are used as a method of fixing the bracket 40 to the web plate 7, but in the present disclosure, the bracket 40 is attached to the web plate 7 by welding or the like. They may be integrated, and there is no particular restriction.

1 Column 2 Lower plate 3 Column 4 Upper plate 5 Front plate 6 Rear plate 7 Web plate 8 First bolt through hole 9 Second bolt through hole 10 First through hole for wiring 11, 13, 22, 32, 56 Bolt 12 , 14, 23, 33, 57 Nut 20 First beam 21 First beam material 30 Second beam 31 Second beam material 40 Bracket 41 First bracket 42 Second bracket 43 Web connection portion 44 Rail connection portion 45 Third bolt penetration Hole 46 Fourth bolt through hole 47 Second through hole for wiring 50 Rail 51 Rail main body 55 Side opening 58 Closure plate 60 Lighting device 62 Electrical wiring 100 Protective fence 110 Foundation block 200 Road S Internal space

Claims (4)

A plurality of pillars arranged at regular intervals in the longitudinal direction of the road;
a beam supported by the column and extending in the longitudinal direction;
a plurality of rails for mounting a lighting device extending in the longitudinal direction between the pillars;
a plurality of brackets connecting the longitudinal end of the rail and the support column;
Equipped with
The pillar is
a pair of side plates extending in the longitudinal direction and the vertical direction and spaced apart from each other in a width direction that intersects both the longitudinal direction and the vertical direction;
a web plate disposed between the pair of side plates, extending in the width direction and the vertical direction, and having both ends in the width direction continuous with the pair of side plates;
has
The bracket is
a web connection part extending along the web plate and connected to the web plate;
a rail connecting part extending in the longitudinal direction from the web connecting part and connected to the longitudinal end of the rail;
A protective fence with The said rail is
a C-shaped rail body whose cross-sectional shape when cut in the width direction and the vertical direction opens toward the road side;
a closing plate that closes the opening of the rail body;
Equipped with
The protective fence according to claim 1, wherein the rail connecting portion is arranged in an internal space surrounded by the rail main body and the blocking plate. The web plate has a first through hole for wiring that penetrates in the longitudinal direction,
The protective fence according to claim 1 or 2, wherein the web connecting portion has a second through hole for wiring that penetrates in the longitudinal direction and overlaps with the first through hole for wiring in the longitudinal direction. The protective fence according to claim 3, wherein the first through hole for wiring and the second through hole for wiring are elongated holes that are longer in the vertical direction than in the width direction.

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