JPH0738480U - Guard fence - Google Patents

Abstract

(57) [Summary] [Purpose] Vertical or horizontal planes of the fence pipe to the stanchions so that they can be installed both on sloping ground and in a bent, non-linear state when viewed from above. (EN) A guard fence in which the crossing angle inside can be selectively changed. [Structure] A plurality of columns 1 are erected at a predetermined interval, and a fence pipe 2 is spanned between adjacent columns 1. The first joint member 3 is taper screwed to each of the columns 1. The joining end portion 6 of the first joint member 3 and the joining end portion 8 of the second joint member 4 are brought into contact with the respective flat surface portions 9 and 10, and are joined by a bolt 13 which vertically penetrates the flat surface portions 9 and 10. Has been done. That is,
The first joint member 3 and the second joint member 4 are connected so as to form a pin joint structure. The end portion of the fence pipe 2 is inserted into the cylindrical portion 7 of the second joint member 4, and the end portion of the fence pipe 2 is fixed to the cylindrical portion 7 by the set screw 17.
It is fixed inside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a protective fence in which a fence pipe is laid between adjacent columns of a plurality of columns, and particularly in the case where the protective fence is installed on a sloping ground and in a non-linear state bent when viewed from above. The present invention relates to a protective fence having a structure in which the crossing angle of the fence pipe with respect to the column in the vertical or horizontal plane can be selectively made variable so that it can be installed in any case.

[0002]

[Prior art]

 The guard fence is not necessarily installed on a flat ground, and may not be installed in a straight line when viewed from above. If the guard fence is installed on a sloping ground, the fence pipe should be tilted in a vertical plane to the stanchion. In addition, if the columns are not installed in a straight line when viewed from above, but are installed in a bent state, it is necessary to tilt the fence pipe in the horizontal plane with respect to the columns.

In such a case, it is possible to prepare in advance the position and the angle of attachment of the fence pipe to the support, which are changed according to the inclination of the protective fence installation surface and the arrangement of the support. However, this method is complicated because it is necessary to prepare a plurality of types of columns or the like according to the installation conditions.

In order to solve these problems, conventionally, there has been provided a protective fence having a structure in which the angle of attachment of the fence pipe to the column is variable. However, these fences only allow the horizontal or vertical angle of the fence pipe to the stanchions to be varied. For this reason, it was necessary to use different types of protective fences when they were installed on sloping ground and when they were installed in a bent and non-linear state when viewed from above.

[0005]

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems of the prior art and to install in a sloping ground and in a non-linear state bent from above. In order to deal with either case, it is to provide a protective fence having a structure in which the crossing angle of the fence pipe with respect to the column in the vertical or horizontal plane can be selectively changed.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the protective fence according to the present invention comprises a plurality of struts which are erected at predetermined intervals, a first joint member which is taper screwed to each stanchion, and A second joint member that is surface-connected to one joint member via a pivot pin, and at least one fence pipe that is connected to this second joint member and that is hung between adjacent columns. It is characterized by being prepared.

[0007]

[Action]

 In the protective fence of the present invention, the first joint member and the second joint member are surface-bonded to each other via the pivot pin, so that the second joint member is connected to the first joint member about the pivot pin. It can rotate freely. As a result, the fence pipe whose both ends are connected to the second joint member is also rotatable with respect to each first joint member.

Further, since the first joint member is taper screwed to the column, the first joint member can rotate counterclockwise or clockwise while being firmly coupled to the support column. As a result, the first joint member screwed to the support can be rotated to freely set the crossable angle of the second joint member in the vertical plane or in the horizontal plane.

When the protective fence of the present invention is installed on a sloping ground, when the first joint member is rotated and fixed so that the second joint member can rotate in the vertical plane, the fence pipe can be fixed to the second joint member. Through this, the crossing angle in the vertical plane can be freely set.

In addition, when the protective fence of the present invention is installed in a bent and non-linear state when viewed from above, when the first joint member is rotated so that the second joint member can rotate in a horizontal plane, The fence pipe can freely set the crossing angle in the horizontal plane via the second joint member.

[0011]

【Example】

 An embodiment of the protective fence according to the present invention will be described below with reference to FIGS.

In the present embodiment, two fence pipes 2 are provided between columns 1 standing upright at a predetermined interval to form a protective fence (see FIG. 3). 2 and 3 show an example in which four columns 1 are erected.

In FIG. 1, reference numeral 1 indicates one of the columns, and the column 1 is provided with a tapered female screw portion 5A. The external thread 3a of the first joint member 3 is taper screwed to the internal thread 5A.

Each strut 1 excluding the strut at both ends is provided with two tapered ridge portions 5A facing each other in the diametrical direction, two sets at regular intervals in the axial direction, for a total of four places. . As the support columns 1 installed at both ends of the entire protective fence, one having two taper screw portions 5A provided at one axial side at regular intervals is used (see FIG. 3).

The first joint member 3 has a tongue-shaped joint end 6 on the side opposite to the male screw 3 a, and the joint end 6 has an axial plane portion 9. A through hole 11 that is orthogonal to the axis is provided at substantially the center of the plane portion 9.

On the other hand, the second joint member 4 is provided with a cylindrical portion 7 for receiving the end portion of the fence pipe 2, and a flat surface portion 10 parallel to the axis of the cylindrical portion 7 is provided on the opposite side of the cylindrical portion 7. A joining end 8 having is provided. A through hole 12 perpendicular to the flat surface portion 10 is provided at the substantially center of the joining end portion 8.

The first joint member 3 and the second joint member 4 are joined together by the flat portions 9 and 10 of the joint ends 7 and 8 and the bolts 13 and nuts 14 penetrating the through holes 11 and 12, respectively. Has been done. Further, the tip ends of the joint ends 7 and 8 are formed in a substantially semicircular shape centering on the through holes 11 and 12, respectively. As a result, the first joint member 3 and the second joint member 4 form a pin joint having the bolt 13 as a pivot pin, and the second joint member 4 forms an angle of 90 degrees to the left and right with respect to the first joint member 3. It is rotatable.

One screw hole 15 is provided in the second joint member 4 approximately at the center of the side surface of the cylindrical portion 7 to penetrate the cylindrical portion 7 in the radial direction. On the other hand, one end of the fence pipe 2 inserted into the cylindrical portion 7 is provided with one elongated opening 16 extending in the longitudinal direction. A set screw 17 having a conical tip is screwed into the screw hole 15 of the cylindrical portion 7. The set screw 17 penetrates the elongated opening 16 of the fence pipe 2 from the screw hole 15 of the cylindrical portion 7. When the set screw 17 is completely tightened, the front end of the set screw 17 is pressed against the inner surface of the fence pipe 2 opposite to the elongated opening 16, and the end of the fence pipe 2 is inserted into the cylindrical portion 7. It is fixed.

Next, the operation of this embodiment having the above configuration will be described.

In the protective fence of this embodiment, since the second joint member 4 and the first joint member 3 are pin-joined by the bolts 13, the fence pipe 2 is at a free angle with respect to the first joint member 3. Can be bent freely.

Further, since the first joint member 3 is taper screwed to the column 1, the first joint member 3 can rotate counterclockwise or clockwise by 90 degrees while being firmly coupled to the column 1. As a result, it is possible to rotate the first joint member 3 which is screwed to the column 1 to rotate the second joint member 4 in any of the vertical plane and the horizontal plane.

As shown in FIG. 2, when the protective fence of this embodiment is installed on a sloping ground, the first joint member 3 is slightly rotated in either direction so that the second joint member 4 is in a vertical plane. Use to fix it so that it can be rotated. Then, the fence pipe 2 can be tilted in the vertical plane, and the crossing angle with respect to the column 1 can be freely set.

As shown in FIG. 3, when the protective fence according to the present embodiment is installed in a bent and non-linear state when viewed from above, the first joint member 3 is slightly rotated in either direction. The joint member 4 is fixed so that it can be rotated in a horizontal plane. Then, the fence pipe 2 can be tilted in the horizontal plane, and the crossing angle with respect to the column 1 can be freely set. As a result, each fence pipe 2 can be installed in a non-linear state with various crossing angles with respect to each pillar 1.

When the set screw 17 screwed into the screw hole 15 of the cylindrical portion 7 of the second joint member 4 is loosened, the end of the fence pipe 2 can slide in the cylindrical portion 7 in the axial direction. It As a result, the length of the portion of the fence pipe 2 exposed from the cylindrical portion 7 can be changed, and even if the fence pipe 2 is slanted over the fence pipe 2 as described above, the intervals between the columns 1 can be kept constant. Alternatively, it is possible to absorb an error such as a space between the columns 1. The fence pipe 2 is fixed to the second joint member 4 by adjusting the length of the portion of the fence pipe 2 exposed from the cylindrical portion 7 and then tightening the set screw 17.

Since the set screw 17 penetrates the elongated opening 16 of the fence pipe 2, the fence pipe 2 can slide only to the position where the set screw 17 hits both ends of the elongated opening 16. I can't. As a result, the fence pipe 2 will not fall out of the cylindrical portion 7 even if the set screw 17 is loosened. Further, even if the fence pipe 2 is slid to expose the cylinder portion 7 to the maximum extent, the amount of insertion of the end portion of the fence pipe 2 into the cylinder portion 7 is ensured by the amount necessary for strength.

[0026]

[Effect of device]

 As described above, according to the present invention, a protective fence having a structure capable of selectively responding to both cases of being installed on a sloping ground and being installed in a bent non-linear state when viewed from above. Therefore, there is no need to change the parts of the protective fence depending on the installation conditions, which is very efficient. In addition, since the choice between installation on a sloping ground and installation in a bent non-linear state when viewed from above can be made only by turning the taper screw, the operation of such selection can be performed easily, and The structure can be made simple and strong.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a structure of a main part of an embodiment of the present invention.

FIG. 2 is an elevational view showing a state in which a protective fence according to the present invention is installed on a sloping ground.

FIG. 3 is a plan view showing a state in which the protective fence according to the present invention is installed in a bent and non-linear shape.

[Explanation of symbols]

 1 Support 2 Fence pipe 3 1st joint member 4 2nd joint member 5A, 3a Taper screw part

Claims (1)

[Scope of utility model registration request] 1. A plurality of struts which are erected at predetermined intervals, a first joint member which is taper screwed to each stanchion, and a pivot pin for the first joint member. A protective fence comprising: a second joint member that is surface-bonded to each other; and at least one fence pipe that is connected to the second joint member and that is spanned between adjacent columns.