JP2593391Y2 - Attachment structure of horizontal beam to main body of protective fence - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a protective fence installed as a guard fence, a railing or the like on a road or a bridge, and more particularly to a structure for attaching a horizontal rail to a main body of the column.

[0002]

2. Description of the Related Art As this kind of protective fence, for example, there is known a protective fence having a column body made of steel pipes erected at predetermined intervals, and a horizontal beam provided between the column bodies. I have.
Here, the horizontal rail is attached to the column main body by a hexagon bolt or a round head cross-hole bolt that penetrates the column main body.

[0003]

[Problem to be Solved by the Invention] However, the work of attaching the horizontal rail to the support body with a hexagon bolt or a round head cross-recessed bolt is very poor in workability, and the number of support bodies is considerably large. When installing a protective fence, there is a problem that the amount of work becomes considerable.

[0004] Further, in this protective fence, a hexagonal bolt or a bolt with a round head cross hole is screwed in from the outside of the column body.
There has been a problem that the heads of these bolts and the like are exposed to the outside of the pillar main body, and the appearance becomes unsightly.

[0005] In addition, when this protective fence is repaired for a protective fence that has been damaged due to a traffic accident or the like, it is necessary to remove a hexagonal bolt or a bolt with a round head cross-hole, etc., so that the work is very troublesome. There was a problem.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a structure in which a horizontal rail is attached to a pillar main body of a protective fence, in which a horizontal rail can be easily attached to or removed from a pillar main body at a site where a protective fence is installed. .

[0007]

According to the present invention for solving the above-mentioned problems, a horizontal beam is connected to a side of a tubular support body via a connecting member, and a vertical member is provided on a side of the support body. A mating hole is formed, and the connecting member has a shaft portion, an engaging piece and a grip portion integrally provided at a predetermined interval on the shaft portion,
A packing attached to the shaft between the engaging piece and the grip, and a joint connected to a crossbar, wherein the engaging piece can pass through an engaging hole of the support body; The packing and the gripping portion are located outside the column main body, and the engaging piece is provided inside the column main body inside the column main body. The coupling member is engaged with the column body in a state of intersecting with the engagement hole, and a joint portion of the coupling member is rotatably coupled to the horizontal rail.

[0008]

In this invention, when the gripping portion of the connecting member is rotated with a spanner or the like in a state where the engaging piece of the connecting member is inserted into the engaging hole of the side portion of the column main body, the engaging piece becomes It rotates inside the column body. When the engagement piece intersects with the engagement hole, the inside of the distal end of the engagement piece comes into contact with the inner surface of the support body. When the engagement piece is substantially orthogonal to the engagement hole, the inside of the distal end of the engagement piece is pushed and bent by the inner surface of the support body, and the connection member is actuated by the spring action of the engagement piece. The connection member is strongly pulled to the center side of the column main body, and the connecting member is fixed to the side of the column main body, and the cross bar is attached to the side of the column main body via the connection member. .

In this invention, when the connecting member is attached to the side of the column main body, the connecting member is pulled toward the center side of the column main body, and the packing of the connecting member is pressed from behind to the grip portion. Then, it tightly adheres to the side of the column main body while covering the engagement hole.

Further, in the present invention, when the gripping portion of the connecting member is rotated with a wrench or the like so that the engaging piece overlaps the engaging hole, the engagement between the engaging piece and the column main body is released. When the connecting member is pulled in this state, the engaging piece comes off from the engaging hole, and the horizontal rail is removed from the side of the column main body together with the connecting member.

[0011]

FIG. 1 is a sectional view taken along line AA of a connecting structure according to an embodiment of the present invention, and FIG. 2 is a partially cutaway front view of the connecting structure according to the embodiment of the present invention. As shown in these drawings, in the mounting structure of the horizontal rail to the main body of the protective fence according to this embodiment, the horizontal rail 20 is connected to the side of the main body 10 via the connecting member 30.

FIG. 3 is a plan sectional view of a column main body according to one embodiment of the present invention, and FIG. 4 is a partial side view of the column main body according to one embodiment of the present invention. As shown in these figures, the column main body 10 is formed of a cylindrical steel pipe, and an oval engaging hole 12 is formed in a side portion of the column main body at a position where a horizontal rail is to be attached.

Here, the shape of the engaging hole 12 of the column main body 10 is not limited to an elliptical shape.
It is only necessary that the member 6 has a size and shape that can pass therethrough, and the width thereof is smaller than the length of the engagement piece 36. For example, it may be an elongated rectangle.

FIG. 5 is a front view of a connecting member according to one embodiment of the present invention, and FIG. 6 is a right side view of the connecting member according to one embodiment of the present invention. As shown in these figures, the connecting member 3
0 is near the shaft portion 32, the grip portion 34 provided at the base end portion (the left end portion in FIG. 5) of the shaft portion 32, and near the distal end portion (the right end portion in FIG. 5) of the shaft portion 32. The provided engagement piece 36
, A packing 38 rotatably attached to a position between the grip portion 34 and the engagement piece 36, and a joint portion 40 integrally provided on the back side of the grip portion 34.

In this example, the grip portion 34 is square when viewed from the side, but may be hexagonal or octagonal. In short, it is only necessary that it can be rotated by gripping with a spanner or the like, and that the rotation angle can be determined. Therefore, a mark point may be formed somewhere.

The engaging piece 36 is made of a spring steel material, and has a similar elliptical plate-like shape slightly smaller than the engaging hole 12 of the column main body 10. If the engaging hole 12 is a rectangle, the engaging piece 3
6 is also a slightly smaller similar rectangle. In the case where the shape of the engagement piece 36 is an elongated rectangle, the engagement piece 36 and the column main body 10 are more firmly engaged with the corner tip of the engagement piece 36. A female screw is formed in the center hole of the engagement piece 36, and the engagement piece 36 is screwed to the tip of the shaft portion 32 and fixed by welding. Note that the engagement piece 36 may be fixed without being screwed to the shaft portion 32.

The packing 38 has a through hole (not shown) at the center, and is formed of a rubber plate that is trapezoidal when viewed from the front and circular when viewed from the side. The packing 38 is sandwiched between the grip portion 34 and the engagement piece 36, and the shaft portion 32 is penetrated. The packing 38 is not limited to rubber, and a bellows-like member formed of a metal plate may be used.

The packing 38 and the grip portion 34 are located outside the column main body 10, and the engagement pieces 36 are engaged with the column main body 10 in a state of intersecting with the engagement holes 12 inside the column main body 10. A substantially spherical joint 4 is provided on the back side of the grip 34.
0 is integrally formed, and the end of the cross rail 20 is rotatably connected to the joint 40.

It should be noted that the joint 40, and thus the connecting member 30, is not limited to being connected to the end of the horizontal rail 20, but may be rotatably connected to the middle of the horizontal rail 20. In this case, the horizontal rail 20 can be supported halfway.

Next, a case where the protective fence is assembled on site will be described. First, the column main body 10 is erected at a predetermined interval on a concrete foundation on site. Next, the support body 1
The engaging piece 36 of the connecting member 30 is inserted into the engaging hole 12 on the side of the No. 0, and in this state, the grip portion 34 of the connecting member 30 is rotated with a spanner or the like. When the grip portion 34 of the connecting member 30 is rotated with a wrench or the like, the engaging piece 36 rotates inside the column main body 10, and the distal end of the engaging piece 36 comes into contact with the inner surface of the column main body 10.

The grip portion 34 is further rotated with a spanner or the like,
When the engagement piece 36 is orthogonal to the engagement hole 12 inside the support body 10, the inside of the distal end of the engagement piece 36 is pushed by the inner surface of the support body 10 to bend, and the connecting member 30 is disengaged. 3
6, the connecting member 30 is fixed to the side of the supporting column main body 10 by being strongly pulled toward the center side of the supporting column main body 10, and the horizontal rail 20 is connected to the supporting column main body 1 via the connecting member 30.
0 is attached to the side.

Next, a case where the protective fence is repaired will be described. First, the grip portion 34 of the connecting member 30 is rotated 90 degrees in a direction opposite to the above direction with a wrench or the like, so that the engagement piece 36 is
2 and overlap. When the engagement piece 36 overlaps the engagement hole 12, the engagement between the engagement piece 36 and the pillar main body 10 is released. When the connecting member 30 is pulled in this state, the engaging piece 36 comes off from the engaging hole 12, and the horizontal rail 20 is removed from the side of the column main body 10 together with the connecting member 30. In this state, the horizontal rail 20 is replaced together with the connecting member 30, and the horizontal rail 20 is attached to the support body 10 again.

[0023]

According to the present invention, the horizontal bar is formed on the side of the column main body via the connecting member only by pushing the engaging piece at the end of the connecting member into the engaging hole on the side of the column main body and rotating it. Since it can be attached, there is an effect that the work of attaching the horizontal rail to the support body becomes easy, and the installation of the protective fence becomes easy.

Further, according to the present invention, the packing firmly adheres tightly with the side wall of the column main body covered with the engagement hole, so that the watertightness of the connecting portion between the column main body and the horizontal rail is improved,
Corrosion resistance is improved, and since screws are not used to attach the crosspiece to the column body, there is an effect that the external appearance of the protective fence is improved.

Further, according to the present invention, the horizontal beam can be removed from the support body by simply rotating the engaging piece at the tip of the connecting member, so that the operation of removing the horizontal beam is facilitated. There is an effect that the repair or removal of the vehicle becomes easy.

[Brief description of the drawings]

FIG. 1 is a perspective view of a connecting structure according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along a line A.

FIG. 2 is a partially cutaway front view of a connecting structure according to an embodiment of the present invention.

FIG. 3 is a plan sectional view of a column according to an embodiment of the present invention.

FIG. 4 is a partial side view of a column according to an embodiment of the present invention.

FIG. 5 is a front view of a connecting member according to an embodiment of the present invention.

FIG. 6 is a right side view of the connecting member according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Support main body 12 Engagement hole 20 Side beam 30 Connecting member 32 Shaft part 34 Grab part 36 Engagement piece 38 Packing 40 Joint part

Claims (1)

(57) [Scope of request for utility model registration] 1. A horizontal strut is connected to a side portion of a tubular support body via a connecting member, and a vertically long engaging hole is formed in a side portion of the support body, and the connecting member includes a shaft. Part, an engagement piece and a grip part integrally provided at a predetermined interval on the shaft part, a packing attached to a position between the engagement piece and the grip part of the shaft part, And the coupling piece has a size and shape capable of passing through the engaging hole of the support body, and has a portion longer than the width of the engaging hole,
The packing and the grip portion are located outside the column main body, and the engaging piece is engaged with the column main body in a state of intersecting with the engagement hole inside the column main body. A structure for attaching a horizontal rail to a column body of a protective fence, wherein a joint portion is rotatably connected to the horizontal rail.