JP4448794B2 - Protective fence - Google Patents

Description

  The present invention relates to a protective fence installed on a road side edge or the like and provided with a line-of-sight guide for improving driver visibility at night.

Conventionally, for example, Patent Document 1 discloses a protective fence as described below for a protective fence to which a line-of-sight guidance mark is attached.
That is, the protective fence has a gaze guidance mark attached on the head of the support column, and the gaze guidance mark is provided on the top of the cap and fitted on the head of the protection fence support. And a line-of-sight guiding reflector attached to the main body, and the main body is bent in the plate width direction, and reflectors are formed on upper portions of both side surfaces substantially orthogonal to the bending direction. It is what is installed.

JP-A-9-3841

  However, in the gaze guidance mark attached to the guard fence as described above, the gaze guidance reflector is attached on the upper surface of the cap fitted to the head of the guard fence post, so that the gaze guide is attached to the existing guard fence. In this case, it is necessary to replace the existing cap with the cap on which the line-of-sight guide is attached, and it takes time for the construction.

  In addition, since the line-of-sight guide is mounted on the head of the column and is away from the traffic position of the vehicle, visibility becomes a problem, and because it is bent to the roadway side, it is not easy to manufacture And, if the angle adjustment of the cap fitting position goes wrong, the headlight from the vehicle is not retroreflected well, and the gaze guidance effect may be impaired, so that the construction requires skill.

  Accordingly, the present invention is intended to solve the above-mentioned problems, and to provide a protective fence that can be easily attached to a visual guidance mark, can be easily manufactured, and can be expected to provide effective visual guidance.

In order to achieve the above object, the present invention is configured as follows. That is, in the guard fence according to the present invention, the horizontal beam is fixed to the support column standing at an interval by using the support bracket, and the visual guidance mark is attached between the support column and the horizontal beam via the support bracket. The support bracket includes a mounting portion attached to the side surface of the column, a receiving portion to which the lateral beam is fixed, and a flat portion formed between the mounting portion and the receiving portion, and is provided below the line-of-sight guide mark. One end portion is placed on the flat portion, and the flat portion is sandwiched between the end portion and a fixing bracket pressed from the back side, and the other end portion of the lower part of the line-of-sight guide is horizontally it is placed in the upper surface of the beam, in which delineators is characterized in that mounted between the strut and the lateral beam.

  According to the present invention, since the gaze guidance mark is attached via the support bracket that fixes the lateral beam to the support column, the gaze guidance mark can be easily attached to the protective fence itself, and the position of the gaze guidance mark is attached. Is between the column and the lateral beam, and is close to the traffic position of the vehicle, so that it is easy to see from the driver of the vehicle and has an excellent visual line guiding effect. Moreover, since it is not a thing which rotates in an attachment site | part unlike the past, fine angle adjustment etc. are unnecessary and it can attach without requiring skill.

In addition, according to the present invention, the flat part of the support bracket is positioned at the lower end of the line-of-sight guide mark without loosening or tightening the fixing bolt for fixing the transverse beam to the receiving part as compared with the reference example described later. Therefore, even when a gaze guidance mark is retrofitted to an existing protective fence, it can be reliably and easily fixed.

Embodiments and reference examples according to the present invention will be specifically described below with reference to the drawings.
That is, FIG. 1 shows one form of a reference example of the guard fence , (A) is a side view thereof, (B) is a front view, and FIG. 2 shows an embodiment of the guard fence according to the present invention. (B) is a side view, (b) is a front view, FIG. 3 shows still another embodiment of the protection fence according to the present invention, (b) is a side view thereof, (b) is a front view, FIG. 4 shows still another embodiment of the protection fence according to the present invention, (A) is a side view thereof, (B) is a front view, and FIG. 5 is an embodiment of a support metal fitting used in the present invention. It is a perspective view shown.

First, the form shown in FIG. 1 will be described.
In FIG. 1, S is a protective fence installed on a road or the like, and includes a support column 1 standing upright on the ground, a support bracket 2 attached to a side surface of the support column 1, and a support bracket 2. The horizontal beam 3 is fixed between 1 and a line-of-sight guide 4 attached between the support column 1 and the horizontal beam 3 via a support fitting 2.

  The column 1 and the transverse beam 3 are the same as those used in the conventional guard fence, and are generally formed from a circular steel pipe.

  The support fitting 2 is formed between the attachment portion 21 having a shape along the side surface of the support column 1 so as to be attached to the support column 1, the U-shaped receiving portion 22, and the attachment portion 21 and the receiving portion 22. And a flat portion 23 that is substantially flat in a side view and a front view that extend from the upper end of the support portion 22 toward the base end of the receiving portion 22, and the attachment portion 21 penetrates the support column 1 in the lateral direction. The lateral beam 3 is mounted on and supported by the receiving portion 22 by a bolt 5 attached to the side surface of the column 1.

The line-of-sight guidance mark 4 has reflectors 42 attached to both upper end surfaces of the main body 41 at predetermined angles, and receives headlights from the traveling lane and the opposite lane, and retroreflects them in the respective directions. Yes. For the attachment of the line-of-sight guide 4, one end 43 at the bottom of the main body 41 is placed on the flat part 23 of the support fitting 2, and the other end 44 is arranged on the horizontal beam 3, The support fitting 2 is fixed by a fixing bolt 6 and a nut 61 that pass through the receiving portion 22 and the horizontal beam 3 and further pass through a fixing hole 45 provided in the end portion 44.
According to this embodiment, the visual guidance mark can be attached to the horizontal beam by using the fixing bolt, and the visual guide mark can be attached. In addition, the fixing bolt can be shared while the horizontal beam is received by the receiving portion. Because the tightening bolt is tightened too much, the transverse beam will not fall off, and the weight of the transverse beam will not be applied when the fixing bolt is tightened. be able to.

  Note that a locking piece 46 projects downward from one end 43 of the lower part of the line-of-sight guide mark 4 placed on the flat portion 23, and the flat portion is interposed between the locking pieces 46. Both edges of 23 are locked to prevent the line-of-sight guide 4 from moving around the fixing bolt 6.

  Further, the main body 41 of the line-of-sight guide 4 fixed as described above has a shape inclined slightly between the horizontal beam 3 and the column 1 and slightly beyond the column 1, and the position of the reflector 42 is predetermined with respect to the horizontal beam 3. The line-of-sight guide mark 4 is attached between the support column 1 and the lateral beam 3 and the reflector 42 is prevented from projecting toward the vehicle passage side from the lateral beam 3.

  Further, as the reflector 42, a lens reflector capable of retroreflecting incident light with high efficiency is preferably used, but is not particularly limited, and a large number of reflecting element groups are formed, and the reflecting element group is formed. A prismatic sheet with a high reflective performance by laminating a thin film of metal such as aluminum on the backside of metal, a reflective sheet with glass beads and prism reflectors on the surface, and a synthetic resin sheet What embedded glass beads etc. can be used suitably.

  Further, a part of the periphery of the fixing hole 45 provided in the lower end portion 44 of the line-of-sight guide mark 4 may be cut out in a U shape to provide a cutout portion. In this way, when fixing the line-of-sight guide 4, the fixing bolt 6 can be inserted into the fixing hole 45 from the cutout portion without removing all the fixing bolts 6, so that the workability is improved.

Next, the form shown in FIG. 2 will be described.
1 is fixed with a fixing bolt 6 for fixing the transverse beam 3 to the receiving portion 22 while the lower end 44 of the line-of-sight guide 4 arranged on the transverse beam 3 is fixed to the receiving portion 22 in FIG. The form is different only in that the end 44 is placed on the upper surface of the transverse beam 3, and the fixing is performed at the end 43 placed on the flat portion 23. The point where the line-of-sight guide mark 4 is attached between the support column 1 and the horizontal beam 3 is substantially the same as the embodiment shown in FIG.

  That is, one end 43 at the lower portion of the line-of-sight guide 4 is placed on the flat portion 23 of the support fitting 2, and the other end 44 is placed on the upper surface of the horizontal beam 3. Then, a flat plate-like fixing bracket 7 is arranged below the end portion 43 placed on the flat portion 23, the fixing bracket 7 is pressed from the back side of the flat portion 23, and the end portion 43 and the fixing bracket 7 are connected to each other. By fixing with the fixing bolt 8, the flat portion 23 is sandwiched between the end portion 43 and the fixing bracket 7, and the line-of-sight guide mark 4 is fixed to the supporting bracket 2. Note that the lower edge of the line-of-sight guide 4 placed on the upper surface of the horizontal beam 3 is notched so as not to hit the fixing bolt 6 that fixes the horizontal beam 3 to the receiving portion 22.

  The fixing bolt 8 that fixes the end portion 43 and the fixing bracket 7 is screwed to a nut N inserted in the lower surface of the end portion 43 to fix the end portion 43 and the fixing bracket 7.

  Further, locking pieces 46 that are locked to both edges of the flat portion 23 protrude from the lower surface of one end portion 43 of the line-of-sight guide mark 4 placed on the flat portion 23, and the locking pieces Since both edges of the flat part 23 are locked between 46, the right and left free movement of the line-of-sight guide mark 4 with respect to the flat part 23 is prevented. Further, a positioning piece 47 projecting downward is projected from one side edge of the end portion 43, and the positioning piece 47 is locked to the side edge of the fixing bracket 7, so that the nut N of the end portion 43 is locked. The fixing bracket 7 is positioned with respect to the position.

Next, the form shown in FIG. 3 will be described.
In the form of FIG. 2, the fixing bolt 8 that fixes the lower end portion 43 of the line-of-sight guide 4 and the fixing bracket 7 is screwed onto a nut N inserted in the lower surface of the end portion 43. However, in the embodiment of FIG. 3, a female screw portion 71 is formed in the fixing bracket 7 by burring tap processing, and a fixing bolt 8 is inserted from a fixing hole provided in the end portion 43, so that the female screw portion 71 is inserted. It is different in that it is designed to be screwed, and the other points are almost the same as the embodiment of FIG.

Next, the form shown in FIG. 4 will be described.
4, the locking piece 46 formed on the lower surface of one end 43 of the line-of-sight guide 4 in FIG. 2 is not formed, and one of the flat portions 23 of the support fitting 2 is formed on the lower surface of the end 43. A side groove 48 is inserted into the side groove 48, and one side edge of the flat portion 23 is inserted into the side groove 48, thereby securing the visual guide 4 to the support fitting 2.

  As in the embodiment of FIG. 3, the fixing bolt 8 is formed by forming a female screw portion 71 by burring tap processing in the fixing bracket 7 and inserting the fixing bolt 8 from a fixing hole provided in the end portion 43. It is designed to be screwed to the portion 71.

  1-4, as shown in FIG. 5 (a), the support bracket 2 used in the form of FIGS. 1 to 4 has a U-shaped receiving portion 22 to which the transverse beam 3 is fixed. Although it is comprised from the part 22, the perpendicular attachment part 21 along the side surface of the support | pillar 1, and the substantially flat flat part 23 formed between the receiving part 22 and the attachment part 21, it is limited to this form. In short, what is necessary is just to have the attachment part 21, the receiving part 22, and the flat part 23. FIG. For example, as shown in FIG. 5 (b), the horizontal plate protrudes in a substantially horizontal J shape from the upper and lower ends of the vertical mounting portion 21 along the side surface of the column 1, and the base portion of the upper horizontal plate is flattened. The horizontal beam 3 may be fixed between the upper and lower horizontal plates by functioning as the portion 23 and functioning as the receiving portion 22 at the tip portion surrounded by the upper and lower horizontal plates.

  The protective fence according to the present invention is provided with a visual guidance effect because the visual guidance mark is attached between the support column and the lateral beam, and is suitably used as a protective fence for a vehicle on the road side edge. Since the mark can be retrofitted, it is possible to use not only the newly installed but also the existing protective fence as the protective fence according to the present invention.

One form of the reference example of a protection fence is shown, (A) is the side view, (B) is a front view. Embodiment of the protection fence which concerns on this invention is shown, (A) is the side view, (B) is a front view. The other form of implementation of the protection fence which concerns on this invention is shown, (b) is the side view, (b) is a front view. The further another form of implementation of the protection fence which concerns on this invention is shown, (A) is the side view, (B) is a front view. It is a perspective view which shows embodiment of the support metal fitting used for this invention.

DESCRIPTION OF SYMBOLS S Guard fence 1 Support | pillar 2 Support bracket 21 Mounting part 22 Receiving part 23 Flat part 3 Horizontal beam 4 Line-of-sight guide 41 Main body 42 Reflector 43 End part 44 End part 45 Fixing hole 46 Locking piece 47 Positioning piece 48 Horizontal groove 5 Mounting bolt 6 Fixing bolt 61 Nut 7 Fixing bracket 71 Female thread 8 Fixing bolt N Nut

Claims (1)

A horizontal beam is fixed to a support column standing upright with a support bracket, and a visual guide is attached between the support column and the horizontal beam via the support bracket. And a receiving part to which the transverse beam is fixed, and a flat part formed between the attaching part and the receiving part, and one end of the lower part of the line-of-sight guide is mounted on the flat part. with the location, is sandwiched between the fixing member where the flat portion was pressed from the end portion and the back side, the other end of the lower portion of the delineator is placed on the upper surface of the horizontal beam, A protective fence in which a line-of-sight guide is attached between a column and a horizontal beam.

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