JP3004976U - Guard fence - Google Patents

Abstract

(57) [Summary] [Purpose] A horizontal beam can be automatically installed in flat sections, and road sections can be adapted to slope sections, providing a safety fence with excellent safety and aesthetics. [Structure] A cylindrical washer 3 is attached to a side surface of a column 1 through a washer 4 for a curved surface in a substantially horizontal direction, and a washer 4 for a curved surface and the attaching metal fitting are attached to a protective fence in which a beam 2 is inserted and fixed thereto. The protrusion 42 is formed on one of the facing joint surfaces 41 and 31 of the third member 3, and the concave portion 32 and the arc-shaped groove portion 33 are formed at the corresponding positions on the other side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a protective fence installed on a shoulder portion of a road or a division zone between a roadway and a sidewalk.

[0002]

[Prior art]

 Protective fences are installed on the shoulders of the roads and in the zones separating the roads and sidewalks. An example thereof will be described with reference to FIG. This figure is a front view of the protective fence, where 1 is a pillar, 2 is a beam, and 3 is a mounting bracket, and the pillar 1 is erected vertically on the ground. It is configured by attaching three beams 2. By the way, as shown in Fig. 4, the beam is attached to the front surface of the pillar 1, that is, the front side, that is, the road side or the road side, and the beam 2 is in the plane connecting the center lines of the pillars 1 and 1 on both sides. The one attached to is called the center type.

By the way, roads have curves and slopes, and guard fences are rather important in such places. In the slope section, even if the pillar 1 is erected in the vertical direction, the beam 2 must be installed at an elevation angle according to the slope of the road, not in the horizontal direction. As described above, in order to install a protective fence corresponding to the slope, it is necessary to have a mounting structure in which the beam 2 can be vertically adjusted with respect to the column 1.

The protective fence proposed by Japanese Utility Model Laid-Open No. 6-8420 will be described with reference to FIGS. FIG. 5 is a partial cross-sectional plan view showing the vicinity of the mounting bracket 3 shown by A in FIG. 4 of this protective fence, and FIG. 6 is a front view showing the same partial cross-section. Metal fittings, 4 is a curved washer, 6 is a bolt for mounting the mounting metal fitting 3 on the column 1, and 7 is a special bolt for mounting the beam 2 on the mounting metal fitting 3.

A bolt hole is formed at the mounting position of the beam 2 on the column 1 toward the mounting surface of the beam. A bolt 6 is inserted into this and a cylindrical mounting is performed via a washer 4 for a curved surface. The metal fitting 3 is attached, the beams 2 and 2 are inserted into the cylindrical portion from both sides, and they are fixed with the special bolt 7. (There is a case where the beam 2 can be attached to only one side like the column 1 at the left end of FIG. 4, but the following description will be made with an example in which the beams are arranged on both sides.) The special bolt 7 is the bolt 7a. The bolt 7a, which is composed of the nut 7b and is shown on the lower side in FIG. 6, is a countersunk bolt that engages with the countersunk hole on the lower surface of the mounting bracket 3, and the nut 7b is aligned with the rectangular hole on the upper surface of the mounting bracket 3 and ends. The part has a rectangular shape. By using such a special bolt 7, the heads of the bolt and the nut do not protrude from the surface of the mounting bracket 3, so that a pedestrian or the like does not come into contact and get injured, and the appearance is good.

The mounting member 3 is a substantially cylindrical metal object, has a joint surface 31 with the support column formed at the center of the side surface, and a screw engaging with the bolt 6 inserted from the support column 1 side at the center of the connection surface 31. A hole is provided. Further, since the side surface of the column 1 is cylindrical and the joining is unstable in this state, the curved washer 4 is used. Since the mounting bracket 3 can be fixed at an arbitrary angle around the bolt 6, when installing this protective fence on a slope section such as a road, the beam can be mounted according to the slope. On the other hand, even when installing on a normal flat section, the mounting bracket 3 is not always horizontal, and adjustment work is required, which causes a problem of poor workability.

[0007]

[Problems to be solved by the device]

 It is an object of the present invention to solve the above problems and to realize a protective fence that can cope with road gradients and can be efficiently installed in flat sections.

[0008]

[Means for Solving the Problems]

 According to the present invention, a cylindrical mounting metal having a circular joint surface near the center of the side is attached to a side surface of a column vertically erected on the ground through a washer for a curved surface, and a beam is attached to the mounting metal. In the guard fence in which the beam is attached in a substantially horizontal direction by inserting and fixing the The protective fence is characterized in that an arcuate groove is formed in the recess and the recess.

[0009]

[Work]

 According to the present invention, the projection, the recess, and the groove are formed on the joint surface between the curved washer attached to the column side and the mounting bracket for attaching the beam to the column, so that this protective fence is installed in a flat section. In this case, the projection fits into the recess and the beam is automatically mounted horizontally. Also, when installing this protective fence in the slope section, the projection engages with the groove, and it can be installed at any angle.

[0010]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. The same reference numerals are used for the same parts as those described above. The overall appearance of the protective fence is the same as in Fig. 4 above, and the mounting structure of the support 1 and the beam 2 is almost the same as in Fig. 5 and Fig. 6 above.

In the protective fence of the present invention, what is different from the one shown in FIGS. 5 and 6 is a washer 4 for a curved surface which is attached to the bolt 6 on the side surface of the column 1 and the vicinity of the opposing joint surfaces of the mounting bracket 3. . Fig. 1 is a partial cross-sectional plan view showing the prop 1 of the protective fence and the mounting bracket 3 separated from each other by the joint surface, 41 is the joint surface of the curved washer 4, 31 is the joint of the mounting bracket 3. The surface.

The curved washer 4 of the present invention is shown in FIG. 2A is a front view and FIG. 2B is a plan view. The joint surface 41 of the curved washer 4 with the fitting 3 is a circular plane, and the bolt 6 penetrates through the center. The joint surface 43 with the support 1 on the back side is a cylindrical concave surface. A protrusion 42 is formed at the upper center (at the 12 o'clock position) of the joint surface 41 with the mounting member 3. Since the joining surface 43 with the post 1 on the back side is a cylindrical concave surface, the curved surface washer 4 should be oriented with respect to the support column 1 as shown in FIG. Can only be installed.

On the other hand, FIG. 3 shows a joint surface 31 on the side of the fitting 3 with the curved washer 4 as seen from the direction of arrow BB in FIG. The joint surface 31 is also a circular flat surface, and a screw hole 34 that engages with the bolt 6 is provided at the center position. Further, a concave portion 32 is formed at the upper center, that is, at the 12 o'clock position corresponding to the projection 42, and at the lower portion from approximately 4 o'clock to 8 o'clock, an arc-shaped groove 33 centered on the screw hole 34 is formed. Are formed. The width and depth of the concave portion 32 and the groove portion 33 all correspond to the protrusion 42.

When the guard fence is to be installed in a flat section, the curved washer 4 of the present invention is used with the protrusion 42 on the upper side as shown in FIG. 2, so that the joining surfaces 41 and 31 can be joined together. The projection 42 fits into the recess 32, the mounting member 3 is in a horizontal posture, and the beam 2 can be mounted horizontally. Further, when the guard fence is installed in the slope section, when the curved washer 4 of the present invention is used with the projection 42 on the lower side as opposed to FIG. 2, when the joining surfaces 41 and 31 are joined, The projection 42 engages with the arcuate groove 33, and the beam 2 can be fixed at an arbitrary angle.

Although the case where the projection 42 is formed on the curved washer 4 side and the recess 32 and the groove 33 are formed on the mounting metal fitting 3 side has been described above, the projection 42 is formed on the mounting metal fitting 3 side. The recess 32 and the groove 33 may be formed on the curved washer 4 side. Since the mounting bracket 3 of the present invention can be applied to both flat sections and slope sections, it is sufficient to prepare one type of mounting bracket regardless of the terrain on which the protective fence is installed, which leads to cost increase. There is no such thing.

[0016]

[Effect of device]

 According to the present invention, since the beam can be automatically installed horizontally in the flat section, the installation work can be performed efficiently, and in the slope section, the beam can be installed at an arbitrary angle corresponding to the slope of the road. The protective fence that matches the landscape and has a beautiful appearance has an excellent effect of improving traffic safety and landscape.

[Brief description of drawings]

FIG. 1 is a partial sectional plan view showing an embodiment of the present invention.

FIG. 2A is a front view and FIG. 2B is a plan view showing a curved washer 4 according to an embodiment of the present invention.

FIG. 3 is a front view taken along the line BB of FIG. 1 showing a joint surface of the mounting member in the embodiment of the present invention.

FIG. 4 is a front view of a protective fence according to the present invention.

FIG. 5 is a partial cross-sectional plan view showing a conventional technique.

FIG. 6 is a partial cross-sectional front view showing a conventional technique.

[Explanation of symbols]

 1 Support 2 Beam 3 Mounting bracket 4 Curved washer 6 Bolt 7 Special bolt 7a Bolt 7b Nut 31 Joint surface 32 Recessed portion 33 Groove 34 Screw hole 41, 43 Joint surface 42 Projection

Claims (1)

[Scope of utility model registration request] 1. A cylindrical fitting (3) having a circular joint surface (31) near the center of the side surface of a pillar (1) vertically erected on the ground through a curved washer (4). ) Is attached in a substantially horizontal direction, and the beam (2) is inserted and fixed in the mounting bracket (3) to attach the beam (2) in a substantially horizontal direction. A protrusion (42) is formed on one of the opposing joint surfaces (41, 31) of the mounting metal fitting (3), and a recess (32) and an arc-shaped groove (33) are formed at the corresponding positions on the other side. A protective fence characterized by being formed.