JP3346961B2 - Fence support cap mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap mounting structure for mounting a cap on a pipe-like column of a fence such as a guard pipe or a guard rail.

[0002]

2. Description of the Related Art A cap for closing an upper end of a column is generally fixed by welding to the column. As shown in FIG. 5, a column of a cap 2 is formed by using an engagement fitting 1 made of a plate-like elastic material. There is one that is easy to attach to 3
-85417). That is, this cap mounting structure utilizes a mounting bolt 4 penetrating through the column 3 for mounting a beam mounting bracket (not shown) to the column 3, and a cap that can be engaged with the mounting bolt 4 is provided below. The upper part of the fitting 1 having the joint groove portion 1a is fixed to the inner surface of the cap 2.

[0003]

According to the above-mentioned conventional cap mounting structure, when the cap 2 is simply lowered from above the column 3 to cover the column 3, the lower surface of the groove 1a for engagement of the fitting 1 is formed. After hitting against the mounting bolt 4 and being elastically deformed, the engaging groove portion 1a engages with the mounting bolt 4 as shown in FIG.
Since the cap 2 is attached to the column 3, no welding work or bolting work is required, and the workability is extremely good.
However, since the engaging groove 1a is located at the free end of the engaging metal 1 made of a plate-like elastic material, the mounting with the engaging metal 1 generates a strong engaging force to the mounting bolt 4. Do not let.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and it is possible to mount a cap with one touch without welding, bolting, or the like, and to mount a cap securely on a column. It is an object of the present invention to provide a cap mounting structure.

[0005]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned problem is a cap mounting structure for a fence post for mounting a cap on a pipe-shaped fence post having a bolt penetrating horizontally near an upper end of the post. Along with fixing the base end of an elongated engaging metal fitting using an elastic material to the inner surface of the cap,
The engaging metal fitting is formed by a groove-shaped engaging portion bent so as to come into contact with the bolt from one side surface of the outer periphery of the bolt to the lower surface, and is folded back at an end of the groove-shaped engaging portion. After that, the bolt has a folded-back extension part whose tip is directed toward the inner surface of the support opposing the one side surface and contacts the inner surface of the support.

[0006]

In the above construction, when the cap to which the engagement fitting is attached is lowered from above the support, the folded extension of the engagement fitting is connected to the bolt penetrating the support and the inner surface of the support opposed to one side surface of the outer periphery of the bolt. And descends while elastically contacting the bolt and the inner surface of the column, and then the groove-shaped engaging portion elastically engages the lower surface of the bolt. In this state, the tip of the folded extension portion is in contact with the inner surface of the column, and the groove-shaped engaging portion is strongly pressed against the bolt by the elastic reaction force of the folded extension portion. Therefore, the groove-shaped engaging portion of the engagement fitting is strongly engaged with the bolt, and the cap is firmly fixed to the column via the engagement fitting.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In this embodiment, a cap is attached to a column of a guard pipe (a protective fence using a pipe as a beam), and FIG. 1 is a cross-sectional view of an upper portion of a column 11 of the guard pipe (a cross-sectional view taken along line BB in FIG. 2). FIG. 2 is a sectional view taken along the line AA of FIG. The cap 12 is substantially hemispherical and has a stepped annular fitting portion 13 fitted to the inner surface of the pillar 11 which is a round steel pipe, and is made of a casting. The mounting bolt 14 passes through the center of the column 11, and the bracket 15 is fixed to the column 11 by tightening a nut 16. In the illustrated example, an inner sleeve 17 is attached to the bracket 15 with bolts 18, and a guard pipe (not shown) is fitted to the inner sleeve 17 by fitting its ends and tightening with bolts.

In the present invention, the base end 20e of an elongated engaging member 20 using a plate-like elastic material such as a plate spring is fixed to the inner surface of the cap 12, and the engaging member 20 is attached to the mounting bolt 14 A groove-shaped engaging portion 20a bent so as to come into contact with the mounting bolt 14 so as to go from one side surface (the right surface in FIG. 2) to the lower surface of the outer periphery of the groove-shaped engaging portion 20
After being folded back at the end of “a”, the inner surface of the column facing the one side surface of the mounting bolt 14 (the inner surface of the right column in FIG. 2)
Folding extension 20 whose tip contacts the inner surface of the support column
have b.

The engagement fitting 20 of this embodiment comprises a cap 1
2 is bent downward in a U-shape (the downward U-shaped bent portion is indicated by 20c), and the shape of the folded extension portion 20b is formed substantially in a V-shape, and the tip portion 20d faces upward. The shape is such that it comes into contact with the inner surface of the column in the posture described above. Also, the tip portion 20d is rounded. On the other hand, the cap 12 is provided with a downward protruding portion 12a for attaching a base end portion (a flat portion on the end side of the downward U-shaped bent portion 20c) 20e of the engagement fitting 20, and a base end portion 20e is provided on an inner surface. And a recess 12c for accommodating a bolt head described below is provided on the outer surface.
The engaging member 20 is fastened and fixed to the downwardly protruding portion 12a by a bolt 21 and a nut 22 that pass through holes formed in the engaging member 20 and the cap 12.

The operation of attaching the cap 12 to the column 11 as described above will be described. The cap 12 is attached to the mounting bolt 20 in the width direction (the left-right direction in FIG. 1).
When it is lowered from above the support 11 in a posture parallel to the above, the shape of the folded extension 20b of the engagement fitting 20 is V-shaped, and the tip end 20d comes into contact with the inner surface of the support in an upward posture. As shown in FIG. 5, the folded extension portion 20b comes into contact between the mounting bolt 14 and the inner surface of the support column and smoothly descends while being elastically deformed.
As shown in FIG. 1 and FIG.
4 is elastically engaged with the lower surface side. In this state, the V-shaped folded extension portion 20b is in a state where the angle of the V-shaped portion is reduced as compared with the free state, and the groove-shaped engaging portion 20a is attached to the mounting bolt 14 by the elastic reaction force of the folded extension portion 20b.
Pressed strongly. Therefore, the groove-shaped engaging portion 20a of the engaging fitting 20 is strongly engaged with the mounting bolt 14, and the cap 12 is firmly fixed to the support 11 via the engaging fitting 20.

If it becomes necessary to remove the cap 12, if the mounting bolt 14 is removed, the engaging metal fitting 20 loses a foothold of the engaging force, so that the cap 12 can be easily removed.

In the embodiment, the shape of the folded extension 20b of the engagement fitting 20 is substantially V-shaped. However, the shape of the folded extension 20b, for example, a gently curved U-shaped or substantially arcuate shape (ie, the folded extension) may be used. (A shape in which the tip of the support comes in contact with the inner surface of the column in an upward posture). The shape of the folded extension portion 20 is preferably downwardly convex in order to generate a large elastic reaction force, but is not necessarily limited thereto. In other words, instead of the downwardly extending ridge, the folded extension portion 2 like an engagement fitting 20 'whose main part is shown in FIG.
It is also possible to adopt a shape in which the tip 20′d of 0′b contacts the inner surface of the column in a downward posture. In addition, the engagement fitting 2
The shape of each part other than the 0-fold extension 20b is not limited to the illustrated example, but can be changed as appropriate.

The means for fixing the base end 20e of the engagement fitting 20 to the cap 12 is not limited to the illustrated example. For example, a screw hole may be simply formed on the cap 12 side, and a bolt may be screwed into the screw hole to fasten and fix the engagement fitting 20, or any other means may be employed. In addition, the location where the engagement fitting 20 is attached to the cap 12 is not limited to the location in the illustrated example.
May be the inner surface of the top.

The cap 12 may have a structure in which the cap 12 is fitted and attached to the outer surface of the column 12 instead of the inner surface, like the conventional cap shown in FIG. In addition, cap 12
Is not limited to a casting, but may be a steel formed by drawing. Further, the present invention can be applied to a case where the support is not a round pipe but a square pipe. Further, the bolts through which the engaging fittings are engaged are not limited to mounting bolts for mounting the bracket. The present invention can be applied if there is any bolt penetrating the column near the upper end of the column.

[0015]

According to the present invention, the cap can be attached to the support simply by lowering the cap on which the engagement fitting is mounted from above the support, so that the cap can be formed with one touch without welding or bolting. Can be installed. The engaging metal fitting has not only a groove-shaped engaging portion that engages with a bolt penetrating the column, but also a folded extension whose tip contacts the inner surface of the column. As a result, the groove-shaped engaging portion can be strongly engaged with the bolt, whereby the cap can be firmly fixed to the column.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one embodiment of a cap mounting structure of the present invention.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is a cross-sectional view showing a state in the middle of attaching the cap to a column.

FIG. 4 is a sectional view of a main part showing another embodiment of the engagement fitting according to the present invention.

FIG. 5 is a sectional view showing an example of a conventional cap mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Prop 12 Cap 12a Protruding part 14 Mounting bolt (bolt penetrating the prop) 15 Bracket 20, 20 'Engagement fitting 20a, 20'a Groove-shaped engaging part 20b, 20'b Folded extension part 20c, 20'c Downward U-shaped portion 20d, 20'd Tip 20e Base 21 Bolt 22 Nut

Claims (1)

(57) [Claims] 1. A cap mounting structure of a fence post for attaching a cap to a pipe-shaped fence post having a bolt horizontally penetrating near an upper end of the post, wherein an elongated engagement metal using an elastic material on an inner surface of the cap. And a groove-shaped engaging portion which is bent so as to come into contact with the bolt so as to go from one side surface of the outer periphery of the bolt to the lower surface, and the groove-shaped engaging portion. And a bent extension portion whose tip is directed toward the inner surface of the support opposing the one side surface of the bolt and then comes into contact with the inner surface of the support post.