JPH1068107A - Dazzling preventing protection fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protection fence for preventing a dazzling light from an oncoming car in the protection fence installed in central reserve, etc., of the road. SOLUTION: In a dazzling preventing protection fence, a fence panel 2 is built between posts 1 erected on the ground. Then, the fence panel 2 is constituted of plate-like dimming panels 22 arranged between up and down frames in the vertical direction and horizontal beams 23 insertedin the center lines of the dimming panels 22 and fixed to them, both ends of each of the horizontal beams 23 are fixed between both right and left frames, and a coping 3 is mounted on the fence panel 2 to fix. Then, each of the dimming panels 22 is formed in the shape of a plate and is not required to make work accordingly, the work of the fence panel 2 is easily made, and since the center lines of the dimming panels 22 are connected with the horizontal beams, sufficient strength can be obtained even when stress is applied to the dimming panels 22, and since the coping 3 is mounted on the fence panel 2, the effect of sight line induction is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective fence installed on a median strip or the like of a road to prevent glare caused by an oncoming vehicle.

[0002]

2. Description of the Related Art Conventionally, a light-shielding fence has been used as a light shielding fence.
In Japanese Patent Application Laid-Open No. 19566, an elongated light-shielding plate having an arc-shaped cross section is fixed at appropriate intervals above and below a stile-shaped frame member by welding or bolting to form a fence-shaped member. A light-shielding fence for roads in which both ends are fixed to a support by an attachment portion has been proposed.

[0003]

However, in the light-shielding fence as described above, the light-shielding plate is formed in an arc shape in cross section, so that the interval between the light-shielding plates can be freely set by the radius of the arc of the light-shielding plate. However, the light-shielding plate must be processed into an arc shape, which is problematic in terms of cost, and the light-shielding plate is easily buckled because it is fixed at both ends, and has a problem in strength.

The inventor of the present invention has made intensive studies in view of the conventional drawbacks, and as a result, has proposed an antiglare protective fence which is easy to process and has sufficient strength.

[0005]

According to a first aspect of the present invention, there is provided an anti-glare protective fence comprising a fence panel provided between columns erected on the ground surface. The panel is composed of a plate-shaped dimming panel disposed vertically between the upper and lower frames, and a horizontal beam inserted through the center line of the dimming panel and fixed to the dimming panel. Is fixed between the left and right frames, and a fence is placed and fixed on this fence panel. The dimming panel is a plate-like body, so no special processing is required, and the fence panel is easy to process. Since the center lines are connected by a horizontal beam, they have sufficient strength even when stress is applied to the dimming panel, and have a gaze guidance effect because the cap is placed on the fence panel.

[0006] The anti-glare protective fence according to claim 2 of the present invention is arranged such that the dimming panel formed of a long plate-like body is at an angle of 60 ° to 90 ° with the longitudinal direction of the fence panel. It is composed of several types of fence panels installed, and when installing a light shielding protective fence near the intersection etc., the angle of the dimming panel is set to an angle smaller than 90 ° so that the driver's oblique front view can be The traffic accident such as a contact accident with a pedestrian crossing a pedestrian crossing can be prevented.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. Reference numeral 1 denotes a support, the base of which is buried in the ground, and is erected on the surface of the ground at appropriate intervals. A fence panel 2 is erected between the columns 1 to serve as a light-shielding fence. The column is generally made of a metal tube having a circular or square cross section, and a panel receiving member 11 is attached to a side wall of the column by welding or the like, and a cap 12 is fitted on a top portion thereof.
The struts are subjected to appropriate surface treatment such as painting or plating on the surface.

[0008] The frame of the fence panel is formed in a frame-like frame by fixing each end face of a plate-like body made of a steel plate or the like to each other by welding or the like. Among the frames constituting this frame, screw holes 211 are formed in the upper frame 21 at appropriate intervals.
Further, elongated plate-like bodies are fixed to the upper and lower frames at appropriate intervals in the vertical direction to form a dimming panel 22, and horizontal beam mounting holes 221 are formed at appropriate intervals on the center line of the dimming panel 22. A horizontal beam 23 made of a metal wire such as a steel wire is inserted into the horizontal beam mounting hole 221 and fixed to the dimming panel 22. Both ends of the horizontal beam 22 are fixed to left and right frames to form the fence panel 2. On this fence panel 2, a cap 3 made by bending a metal plate such as a steel plate is mounted and screwed. The cap 3 has a substantially C-shaped cross section, and an opening 31 thereof serves as a bottom surface. Inner surface side edge 32 of this opening 31
The plate nut 4 has a screw hole 211 formed in the upper frame 21.
The screw is screwed into the female screw 41 of the plate nut 4 through the screw hole 211 formed in the upper frame 21 to fix the cap 3 and the upper frame 21. The plate nut 4 is manufactured by screwing a female screw 41 at the center of a plate-like body having one side slightly smaller than the inner diameter of the cap 3.

As described above, a metal plate such as a steel plate is used for the plate-like body and the dimming panel forming the frame-like frame. However, it is more preferable to use a stainless steel plate in consideration of the contact resistance. You. In this embodiment, the frame is made of a plate, but a metal pipe such as a steel pipe or a shaped steel may be used. Attachments are formed on the left and right frames at positions corresponding to the panel receiving fixtures attached to the columns. As the horizontal beam, a steel wire or the like is generally used, but a stainless steel wire or a stainless steel rod is more preferably used in consideration of the contact resistance. The mounting of the horizontal beam and the dimming panel is performed by inserting the horizontal beam into a horizontal beam mounting hole formed in the dimming panel and then pressing the horizontal beam to the edge of the horizontal beam mounting hole to perform resistance welding. Kasagi is painted on a metal plate such as a zinc-treated steel plate, and has a color tone different from that of the fence panel.

The operation of the anti-glare protection fence of the present invention will be described with reference to FIGS. FIG. 2 is a front view of the fence panel of the present invention, and FIG. 3 is a horizontal sectional view of a main part of the fence panel of FIG. 2. It can be represented by θ in the figure. The required light blocking angle is 1 according to the Japan Highway Public Corporation Standard.
0 ° or more.

FIG. 4 shows an example of an embodiment of a fence panel suitable for being installed near an intersection among fence panels used for the anti-glare protection fence of the present invention, and FIG. It is a horizontal sectional view of a main part of a fence panel. In this example, the required light-shielding angle is 10 ° or more, and the light-shielding rate is substantially zero when the angle is 60 °, and if installed near an intersection, a sufficient field of view for pedestrians crossing the pedestrian crossing is provided. Can be secured. For example, if this panel is installed near an intersection as shown in FIG. 6, even when there is an intersection where there is no traffic signal or a pedestrian a who crosses while ignoring the traffic signal, the visibility of the driver b can be sufficiently secured. Can be prevented.

[0012]

As described above, the anti-glare protective fence according to the first aspect of the present invention is an anti-glare protective fence in which a fence panel is erected between columns erected on the ground surface. The panel is composed of a plate-shaped dimming panel disposed vertically between the upper and lower frames, and a horizontal beam inserted through the center line of the dimming panel and fixed to the dimming panel. Is fixed between the left and right frames, and a fence is placed and fixed on this fence panel. The dimming panel is a plate-like body, so no special processing is required, and the fence panel is easy to process. Since the center line is connected by a horizontal beam, it has sufficient strength even when stress is applied to the dimming panel, and has a gaze guidance effect because the cap is placed on the fence panel.

[0013] The anti-glare protective fence according to claim 2 of the present invention is arranged such that the dimming panel made of a long plate-like body is at an angle of 60 ° to 90 ° with the longitudinal direction of the fence panel. It is composed of several types of fence panels installed, and when installing a fence for glare prevention near an intersection etc., by setting the angle of the dimming panel to an angle smaller than 90 °, for example, 60 °, the oncoming vehicle Prevents glare from the front due to headlights and ensures a diagonally forward view of the driver, ensuring sufficient driver visibility even at intersections where there is no signal or pedestrians ignoring the signal. Traffic accidents such as contact accidents with pedestrians crossing the pedestrian crossing can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of an embodiment of the anti-glare protection fence of the present invention.

FIG. 2 is a front view showing an example of an embodiment of a fence panel used for the anti-glare protection fence of the present invention.

FIG. 3 is a horizontal sectional view of a main part of FIG. 2;

FIG. 4 is a front view showing another example of the embodiment of the fence panel used for the anti-glare protection fence of the present invention.

FIG. 5 is a horizontal sectional view of a main part of FIG. 4;

FIG. 6 is an overhead view of an intersection explaining the operation of the anti-glare protection fence of the present invention.

FIG. 7 is an assembly view showing an example of an embodiment of assembling a bridge of the anti-glare protection fence of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Prop 11 Panel receiving bracket 12 Cap 2 Fence panel 21 Upper frame 211 Screw hole 22 Dimming panel 221 Horizontal beam mounting hole 23 Horizontal beam 3 Kasagi 31 Opening 32 Inner side edge 4 Plate nut 41 Female screw

Claims (2)

[Claims] 1. A dimming protection fence comprising a fence panel provided between columns erected on the ground surface, wherein the fence panel is vertically arranged between upper and lower frames. It consists of a panel and a horizontal beam that is inserted through the center line of this dimming panel, and this dimming panel is fixed to the horizontal beam. Both ends of this horizontal beam are fixed between the left and right frames, and a cap is placed on this fence panel. An anti-glare protective fence characterized by being fixed. 2. A dimming panel made of a long plate-like body is constituted by several types of fence panels arranged so as to be at an angle of 60 ° to 90 ° with the longitudinal direction of the fence panel. The anti-glare protective fence according to claim 1, wherein