JP2001020564A - Protective fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate installation of a fence to an inclined ground or a curved equipment by fitting a base of a metal fixture as a member constituting a protective fence to a metal connector by a fixing pin, and mounting a panel on the fitting part of a metal fitting. SOLUTION: A metal fitting 3 constituting a protective fence is mounted on a support 4 through a metal connector 1. Accordingly, the fitting can be slid along a guide groove 13 provided in the metal connector 1, and the angle made between panels mounted on both sides of the support 4 can be set arbitrarily in a wide range. A difference X in level substantially half the outside diameter of the support 4 is provided between the base part 1 of the metal fitting 3 and the fitting part 33, thereby making the center of the panel and the center of the support 4 on the same axis. Thus, the fence can be easily installed on the inclined ground and curved equipment. Further, as the support and a beam are disposed on the same plane, the surface and the back of the protective fence are symmetrical so that it is suitable for installation on a boundary of a site.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective fence such as a fence or a guardrail, and more particularly to a protective fence suitably used when there is a height difference between installation locations or when the installation is not linear.

[0002]

2. Description of the Related Art Conventionally, a protective fence has a plurality of columns standing on the surface of the ground at appropriate intervals, and a panel is mounted between the columns via a mounting bracket. Conventionally, as a structure for mounting this panel between columns through mounting brackets, as described in Japanese Utility Model Publication No. 58-47056, a mounting bracket composed of a hollow cylindrical body is mounted on the side surface of a column, and A front beam type that was made to insert and attach the beam end that constitutes the panel at each end,
As described in Japanese Utility Model Publication No. 59-5056, the bottom of a mounting bracket made of a bottomed tubular body is mounted with the bottom of the mounting bracket facing substantially the center of the column, and the end of a beam forming a panel at the open end of the mounting bracket. There is a center beam type that inserts and mounts. In addition, the applicant of the present invention has disclosed in Japanese Patent Application Laid-Open No. Hei 8-134859, a mounting bracket having a back surface abutting on a side surface of a support column, and a beam fitting mounted on the mounting bracket, and the mounting bracket has a convex surface. The convex spherical surface is provided with a wide groove in the longitudinal direction, a stopper is slidably provided in the wide groove, and the beam fitting is provided with a mounting part for mounting a beam at one end, At the other end, a concave spherical surface conforming to the convex spherical surface of the mounting bracket is formed, and the concave spherical surface of the beam fitting is fastened to the stopper. ing.

FIGS. 7 and 8 show the above two types of mounting structures.
This will be described in detail with reference to FIG. First, FIG. 7 shows a front beam type, (a) is a plan view, and (b) is a front view. As shown in FIG. 7, the mounting structure of the front beam type has a mounting member B made of a hollow cylindrical body having both ends opened on the side surface of a column A, and ends of the beam C are inserted into both ends of the mounting member B, respectively. It is to be attached. In this front beam type, the mounting bracket B is a support A
Can be easily fixed with a through bolt D, and on a slope such as a sloping road, the mounting bracket B is rotated about the through bolt D as shown by the one-dot chain line in (b) according to the inclination. The beam C can be mounted in an inclined manner, and the beam C can be mounted on a straight line.

[0004] Next, Fig. 8 shows a center beam type, in which (a) is a plan view, (b) is a front view, and (c) is a beam attached to a column erected on a curved portion of a road. It is a top view showing a state. The mounting structure of the center beam type is a mounting bracket E composed of a bottomed cylindrical body having one end opened.
Is mounted on the side surface of the column A, facing the center of the column A, and the end of the beam C is inserted into the open end of the mounting bracket E. In this center beam format,
The mounting bracket E can be easily mounted on the column A with mounting bolts such as a penetration bolt F or a T-shaped bolt G. On a slope such as a hill, only the gap between the mounting bracket E and the beam C is represented by a one-dot chain line. The beam C can also be installed at an angle as shown in the figure. In the curved part of the road, as shown in (c),
There is an advantage that the beam C can be bent and fixed by fixing the mounting bracket E with the T-shaped bolt G while moving the mounting bracket E in the circumferential direction of the column A.

[0005] In the mounting structure of the support and the beam proposed by the present applicant in Japanese Patent Application Laid-Open No. Hei 8-134859, the concave spherical surface of the beam fitting is brought into contact with the convex spherical surface of the fitting, and the concave spherical surface is mounted. The beam fitting is fixed to a stopper slidably inserted into the groove of the fitting, and the mounting portion of the beam fitting is oriented in the direction in which the beam is mounted. At this time, since the convex spherical surface of the mounting bracket matches the concave spherical surface of the beam bracket, the horizontal direction of the mounting portion of the beam bracket can be changed as appropriate by sliding the stopper along the groove. In addition, by rotating the beam fitting around the stopper, the vertical direction of the mounting portion of the beam fitting can be appropriately changed.

[0006]

However, in the front beam type as described above, since the mounting bracket B is a straight cylindrical body, it is not possible to mount the beam C to the column A in a bent state. . Therefore, there is a problem that it is difficult to cope with a curved portion. It is conceivable to bend the beam C along the curve of the installation location in order to cope with the curved portion. However, it is cumbersome. There was a problem that installation was not possible. Further, in this front beam type, there is a problem that the column A and the beam C are not on the same plane and the front and back are asymmetric.

In the center beam type, since the mounting brackets E are mounted on both sides of the column A, the centers of both sides are displaced and it is difficult to mount the beam C in a straight line. It is also difficult to correct the beam C. In addition, when the beam C is installed on a slope such as a slope, the beam C can only be tilted by the gap between the mounting bracket E and the beam C. Steep slopes could not be accommodated.

Further, in the mounting structure of the support and the beam proposed by the present applicant in Japanese Patent Application Laid-Open No. Hei 8-134859, the support A and the beam C are not on the same plane as in the front beam system, and the front and back are asymmetric. There was a problem of becoming.

Therefore, the present inventor has conducted intensive studies in view of the conventional disadvantages, and as a result, can easily cope with a curved portion, can be installed on a slope, the top of the panel can be installed in a straight line, and the struts and beams can be installed. The purpose of the present invention is to provide a protective fence arranged on the same surface.

[0010]

SUMMARY OF THE INVENTION The protective fence of the present invention is formed in a circular arc shape in a protective fence in which a panel is attached between columns erected at appropriate intervals on the ground surface, and is formed in an arc shape. A connection fitting having a guide groove formed along it, a fixing pin slidably engaged in the guide groove, and a mounting fitting having a step having a radius of an outer diameter of the connection fitting are formed. The base of the fixing bracket is attached to the connecting bracket by the fixing pin, and a panel is attached to the mounting portion of the mounting bracket, so that it can easily cope with a sloped or curved installation, and can be installed on a sloped ground. Also in this case, the top of the panel can be installed in a straight line, and the columns and beams are arranged on the same plane, so that the front and back of the protective fence are symmetrical, which is suitable for installation on the site boundary.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows an example of an embodiment of a connection fitting 1 in a protective fence of the present invention. (A) is a front view, (B)
Is a plan view. The connection fitting 1 has a hat-shaped cross section, and has a base formed in an arc shape and a mounting portion 12 having screw holes formed at both ends of the base. The connection fitting 1 has a guide groove 13 in which a long hole is formed in an arc surface.

FIG. 2 is an assembly view showing a form of engagement between the connection fitting 1 and the fixing pin 2. The connection fitting 1 has a step formed on a base 11 formed in an arc shape, a fixing pin 2 is inserted from an opening direction of the step, and a guide groove 1 formed in an arc shape.
3 is a square rotation stopper 2 formed on the head of the fixing pin 2
1 is inserted into the guide groove 13 so as not to rotate, and slides along an arc surface.

As shown in FIG. 3, a pair of connection fittings 1 are brought into contact with each other so that their arcuate concave surfaces are opposed to the support posts 4, and mounting portions 12 formed at the ends of a base portion 11 are overlapped with each other. Are fixed to the column 4 with bolts 5 penetrating through. The fixing pin 2 has its head held between the outer surface of the column 4 and the inner surface of the connection fitting 1, and has a guide groove 1 formed in the connection fitting 1.
3 so as to be slidable.

4A and 4B show an example of an embodiment of the mounting bracket 3 in the protective fence of the present invention. FIG. 4A is a front view, and FIG. 4B is a plan view. One end of the base 31 of the mounting bracket 3 is bent, and the end of the bent portion 32 is bent in a direction opposite to the bending direction to form a mounting portion 33, and a step X is formed between the mounting portion 33 and the base 31. ing. The step X is substantially half the outer diameter of the pillar 4 of the protective fence as described later. A mounting hole is provided in the base and the mounting portion of the mounting bracket, and a fixing pin is inserted and fixed in the mounting hole of the base.

FIGS. 5 and 6 are plan views showing an example of the mounting state of the mounting bracket 3 in the protective fence of the present invention. Since the mounting bracket 3 in the protective fence of the present invention is attached to the column 4 via the connecting bracket 1 as described above, it can slide along the guide groove 13 provided in the connecting bracket 1; The angle between the panels attached to both sides of the column 4 can be arbitrarily set within a wide range. In addition, since the base 31 and the mounting portion 33 of the mounting bracket 3 are provided with a step of approximately half the outer diameter of the column 4, the center of the panel is coaxial with the center of the column 4.

[0016]

As described above, the protective fence of the present invention is formed in an arc shape in a protective fence in which a panel is attached between columns erected at appropriate intervals on the ground surface, and is formed in an arc shape. A connection fitting having a guide groove formed along the same, a fixing pin slidably engaged in the guide groove, and a mounting fitting having a step having a radius of an outer diameter of the connection fitting are formed by the fixing pin. It is attached to the connection fitting, and the panel is attached to this mounting bracket, so it can easily cope with installation on sloping ground or curved shape, and even when installing on sloping ground, the top of the panel can be installed straight. Moreover, since the support and the beam are arranged on the same plane, the front and back of the protective fence have a symmetrical shape, which is suitable for installation on the site boundary or the like.

[Brief description of the drawings]

FIG. 1 is a front view, FIG. 1 (b) is a plan view, and FIG. 1 (c) is a side view showing an example of an embodiment of a connection fitting in the protective fence of the present invention.

FIG. 2 is an assembly diagram showing an example of a form of engagement between a connection fitting and a fixing pin in the protective fence of the present invention.

FIG. 3 is a plan view showing an example of a mounting state of a support post and a protection fence in the protection fence of the present invention.

4 (a) is a front view and FIG. 4 (b) is a plan view showing an example of an embodiment of a mounting bracket in the protective fence of the present invention.

FIG. 5 is a plan view showing an example of a mounting state of a mounting bracket in the protective fence of the present invention.

FIG. 6 is a plan view showing an example of a mounting state of a mounting bracket in the protective fence of the present invention.

FIG. 7 shows a conventional front beam type.
(A) is a plan view and (B) is a front view.

FIG. 8 shows a conventional center beam format.
(A) is a plan view, (B) is a front view, and (C) is a plan view showing a state in which a beam is attached to a column erected on a curved portion of a road.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection metal 11 Base 12 Mounting part 13 Guide groove 2 Fixing pin 21 Rotation stop 3 Mounting bracket 31 Base 32 Bent part 33 Mounting part 4 Support 5 Bolt

Claims (1)

[Claims] 1. A protective fence having a panel attached between pillars erected at appropriate intervals on the ground surface, the connecting bracket being formed in an arc shape and having a guide groove formed along the arc surface. And a fixing pin slidably engaged in the guide groove, and a mounting bracket formed with a step having a radius of an outer diameter of the connection fitting, and a base of the fixing fitting is connected by the fixing pin. A protective fence, which is attached to a metal fitting, and a panel is attached to a mounting part of the metal fitting.