JP2007120162A - Guard fence - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guard fence which can facilitate mounting of a reflector, and which gives expectation of efficient visibility. <P>SOLUTION: A horizontal beam 3 is supported on a support fitting 2 which is mounted on the side surface of the support 1; the reflector 6, which is mounted on the support fitting 2, comprises a mounting part 61 which is mounted on the support fitting 2 by means of a mounting bolt 4, and a reflecting part 63 which is bent downward from one side end of the mounting part 61 and which is fitted with a retroreflector 62; and an engaging part 64, which is engaged with the supporting fitting 2 so as to inhibit the turning of the mounting part 61 in the fastening of the mounting bolt 4, is formed at the leading end of the mounting part 61. Thus, since the reflector is mounted by fastening the mounting bolt 4, it can be mounted easily on the guard fence P. Additionally, since the engaging part 64 for inhibiting the turning of the mounting part 61 of the reflector is formed, fine angle adjustment and the like are unnecessary, and the reflector can be mounted without the need for skill. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a protective fence that is installed on a roadside or on a pedestrian road boundary or the like and to which a reflecting device for improving visibility at night is attached.

Conventionally, with respect to a protective fence to which a reflection device is attached, for example, Patent Document 1 discloses the following protective fence.
That is, the gaze guide is a reflection device mounted on the head of the support post, and the gaze guide is provided with a cap fitted to the head of the support post and the cap. It consists of a plate-like main body provided on the upper surface, and a line-of-sight guiding reflector attached to the main body, and the main body is bent in the plate width direction, and the upper part of both side surfaces substantially orthogonal to the bending direction. Is provided with a reflector.

JP 09-003841 A

  However, in the line-of-sight guide attached to the protective fence as described above, the line-of-sight guide reflector is mounted on the upper surface of the cap that is fitted to the head of the protective fence post, so that it is attached to the existing protective 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, the line-of-sight guide is mounted on the head of the column and is away from the vehicle's traffic position, so visibility becomes a problem, and if the angle adjustment of the cap insertion position goes wrong, the headlight from the vehicle is recurred well Since it does not reflect and visibility may fall, construction required skill.

  Accordingly, the present invention is intended to solve the above-described problems, provide a protective fence that can be easily attached to a reflection device and that can be expected to be efficiently visible.

  In order to achieve the above object, the present invention is configured as follows. That is, the protective fence according to the present invention is a mounting in which a transverse beam is supported by a support fitting attached to a side surface of a support column, a reflection device is attached to the support fitting, and the reflection device is attached to the support fitting by a mounting bolt. And a reflection part that is bent downward from one side edge of the attachment part and is attached with a retroreflector. The engaging part which prevents rotation of a part is formed.

  According to the present invention, since the reflection device is attached by fastening the attachment bolts, the attachment of the reflection device to the protective fence is easy, and the engagement portion that prevents the reflection device from rotating is provided. Since it is formed, fine angle adjustment or the like is unnecessary, and it can be attached without skill.

  In the present invention, when the reflecting portion is bent at an angle of 5 to 15 ° with respect to the mounting portion, and the mounting portion is attached to the support bracket, the direction of the retroreflector of the reflecting portion is the direction in which the transverse beam extends. May be attached at an angle of 5 to 15 °. By doing so, the retroreflector can be directed toward the vehicle traveling on the roadway, and therefore, the light of the headlight of the vehicle can be efficiently reflected, which is preferable.

  Further, in the present invention, the support bracket includes an inner sleeve in which both end portions are respectively inserted into end portions of two transverse beams connected with a gap therebetween, and covers the inner sleeve in the gap and is provided on a side surface of the support column. If the curved shape along the outer shape of the mounting bracket is made to be an engaging portion formed on the mounting portion of the reflection device, the rotation can be prevented relatively easily. A reflection device having an engagement portion can be manufactured.

  Further, in the present invention, a plurality of horizontal beams are respectively supported in a vertically parallel manner on a plurality of support fittings attached to the side surface of the support column, and if a reflecting device is attached to the support fitting for the bottom horizontal beam, Even when the vehicle is traveling at night with a low beam, the light of the headlight is easy to hit the reflecting device, which is preferable because the visibility is improved.

Embodiments according to the present invention will be specifically described below with reference to the drawings.
FIG. 1 is a front view showing an embodiment of a protection fence according to the present invention, FIG. 2 is an enlarged view of the main part of FIG. 1, (A) is a partial sectional view, and (B) is a front view. FIG. 3 (a) is a top view of a partially cutout of the reflecting device, (b) is a front view, (c) is a right side view, (d) is a left side view, and FIG. 4 is a reflecting device. It is explanatory drawing which looked at from the upper surface.

  P is a protective fence installed on a road or the like, 1 is a support column erected on the ground at a certain interval, 2 is a support bracket attached to the side of the support column 1, and 3 is installed on the support bracket 2. The support bracket 2 has an inner sleeve 21 whose both ends are respectively inserted into end portions of two transverse beams 3 that are connected with a gap therebetween, and an inner sleeve in the gap. 21 and a mounting bracket 22 which is attached to the side surface of the support column 1 and whose tip is processed into a rounded shape. One mounting bolt 4 fastened to the mounting bracket 22 has a central portion of the inner sleeve 21. The transverse beam 3 and the inner sleeve 21 are fastened to the left and right of the mounting bolt 4 that penetrates the inner sleeve 21 by two fixing bolts 5. These are formed of a metal material so as to satisfy a predetermined strength required for the protective fence P.

  Reference numeral 6 denotes a reflecting device attached to the lower surface of the mounting bracket 22 that constitutes the support bracket 2 that supports the lowermost transverse beam 3 of the three-stage transverse beam 3, and the reflecting device 6 is attached to the mounting bracket 22. An attachment portion 61 attached by the bolt 4 and a reflection portion 63 bent downward from one side edge of the attachment portion 61 and attached with a retroreflector 62 are provided. And an engaging portion 64 that prevents the mounting portion 61 from rotating when the mounting bolt 4 is fastened.

  When the reflection device 6 is mounted on the mounting bracket 22, the mounting bolt 4 is inserted into the mounting hole 65 formed in the mounting portion 61 and tightened, but the tip is formed in a round shape. The fitting portion 64 has a distal end portion curved with a curvature corresponding to the radius so as to follow the outer shape of the fitting fitting 22, and when the fitting bolt 4 is fastened, the engagement portion 64 is attached to the fitting portion 64. By following the round shape at the tip of the metal fitting 22, the reflecting device 6 can be easily attached to the attachment metal fitting 22 without rotating. The mounting hole 65 may have a round shape, but may have a long hole shape toward the engaging portion 64 so that the engaging portion 64 can easily follow the round shape at the tip of the mounting bracket 22. Further, the mounting portion 61 is notched along the engaging portion 64 in a U shape with a width slightly larger than the bolt diameter of the mounting bolt 4 so that the reflection device 6 can be mounted without removing the mounting bolt 4. Also good.

  In addition, the reflection portion 63 is bent at an angle of 5 to 15 ° with respect to the attachment portion 61, and when the attachment portion 61 is attached to the support bracket 2, the direction of the retroreflector of the reflection portion 63 a is attached at an angle θ of 5 to 15 ° with respect to the extending direction b of the transverse beam 3. This is because the light of the headlight of the vehicle is efficiently reflected by directing the retroreflector 62 toward the vehicle traveling on the roadway.

  As the retroreflector 62, a glass bead embedded reflector in which a glass bead is embedded in a semi-embedded state in a molded body of a thermoplastic synthetic resin such as a polyethylene resin or an ABS resin is preferably used. It is not a lens-shaped reflector, or a prism-like structure in which a large number of reflective element groups are formed and a thin film of metal such as aluminum is laminated on the back surface of the reflective element groups by a metal vapor deposition method or the like. A reflective sheet having a glass bead or prism reflector disposed on the surface thereof can be used as appropriate.

  In this embodiment, the retroreflector 62 is formed in a trapezoidal shape when viewed from the front. This is because when the retroreflector 62 is formed with a width that does not protrude from the lateral beam so that the vehicle or the like does not touch and break, This is because the retroreflected area can be increased and the visibility can be improved as compared with a circular shape. Furthermore, if it is trapezoidal in a direction indicating the traveling direction of the vehicle, a line-of-sight guidance effect can also be expected.

It is a front view showing one embodiment of a protection fence concerning the present invention. It is drawing which expanded the principal part of FIG. 1, Comprising: (a) is a fragmentary sectional view, (b) is a front view. (B) is a front view, (c) is a right side view, and (d) is a left side view. It is explanatory drawing which looked at the reflection apparatus from the upper surface.

Explanation of symbols

P Guard fence 1 Post 2 Support bracket 21 Inner sleeve 22 Mounting bracket 3 Horizontal beam 4 Mounting bolt 5 Fixing bolt 6 Reflector 61 Mounting portion 62 Retroreflector 63 Reflecting portion 64 Engaging portion 65 Mounting hole

Claims (4)

A horizontal beam is supported by a support fitting attached to the side of the column, and a reflection device is attached to the support fitting. The reflection device is attached to the support fitting by a mounting bolt, and one side edge of the attachment portion. And a reflective part to which a retroreflector is attached. The engaging part engages with a support fitting at the tip of the attachment part and prevents the attachment part from rotating when the attachment bolt is fastened. Protective fence characterized by being formed. The reflection part is bent at an angle of 5 to 15 ° with respect to the attachment part, and when the attachment part is attached to the support bracket, the direction of the retroreflector of the reflection part is 5 with respect to the extending direction of the transverse beam. The protective fence according to claim 1, wherein the protective fence is attached at an angle of ˜15 °. The support bracket includes an inner sleeve in which both end portions are respectively inserted into end portions of two transverse beams that are connected to each other with a gap therebetween, and a mounting bracket that covers the inner sleeve in the gap and is attached to a side surface of the support column The guard fence according to claim 1, wherein a curved shape along an outer shape of the mounting bracket is an engaging portion formed on the mounting portion of the reflection device. 2. A plurality of transverse beams are respectively supported in parallel in a vertical direction by a plurality of support fittings attached to the side surface of the support column, and a reflector is attached to the support fitting for the lowermost horizontal beam. The protective fence of any one of -3.