JPH08135258A - Support fixing structure - Google Patents

Abstract

PURPOSE: To provide a support fixing structure wherein high work efficiency can be provided and fine adjustment of height of a support can be easily performed and the height may not change for a long period of time, without causing a lowering of design. CONSTITUTION: Arecess 2 is formed on a concrete surface, where a support is to be erected, and an upright bolt 5 with external thread 3 on the outer surface thereof is provided in the recess 2 so as to protrude upwards. A downwardly oriented bolt 6 with external thread 4 arranged oppositely to the thread 3 on the outer surface thereof is mounted to the lower end of the support 1 so as to protrude downwards, and both of the bolts 5, 6 are connected together by a long nut 9, wherein the upper half and lower half of the inner surface thereof have oppositely directed internal threads 7, 8. And stopper nuts 10, 10 are fixed on the opposite sides of the nut 9 and the recess 2 is filled with filling concrete 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention fixes the lower end of a pillar such as a road safety fence, a fence with a soundproof wall for a road, a safety fence for a veranda, a gate, a handrail, and various fences to a concrete foundation in its standing position. Related to the structure.

[0002]

2. Description of the Related Art Pillars for road safety fences, fences with soundproof walls for roads, safety fences for balconies, etc. can be buried at the same time as the foundation concrete is placed at the lower end of the pillar, but it is accurate until the concrete hardens. It is extremely troublesome to hold and fix the columns, and in recent years, it has been retrofitted by using a separate fixture after the foundation concrete is completed. Although there are various shapes of the mounting tool, as a typical mounting tool, the one shown in FIG. 4 is one in which a cylindrical wall fitted into the hollow portion of the lower end of the column is provided on the upper surface of the substrate, and the mounting shown in FIG. The tool is made by matching the inner diameter of the cylindrical wall provided on the board to the outer dimension of the column.For both mounting tools, fix the board with anchor bolts buried in concrete at the upright part of the column, The lower end of the column is fitted into the cylindrical wall provided in the, and is connected from the outer surface by a fixing bolt or the like. Also, in order to make the column heights uniform, the bolt holes provided in the lower end of the column or the cylindrical wall are formed vertically long,
The stanchions are adjusted in the vertical direction before bolting.

[0003]

In the case of the above-mentioned mounting tool having a cylindrical wall for fitting the lower end of the column on the substrate, the fixture is fixed to a vertically long hole at the lower end of each column in order to make the heights of the multiple columns even. Since the bolts are fitted and temporarily fixed, and each post is moved up and down to adjust the height and tighten the bolts, workability is poor, and fine adjustment of the height is extremely difficult. Then, there is a drawback that the bolt fitted in the long hole is loosened and the height of the column is distorted. In addition, since a separate mounting tool, a vertically elongated hole, and a mounting bolt are exposed at the lower end of the support column, there is a drawback that the design is deteriorated.

The present invention provides a strut fixing structure which has good workability, allows fine adjustment of the height of the strut easily, and does not change the height of the strut even after a long period of time, and does not cause a reduction in design. The purpose is to provide.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a dented recess is formed in a concrete surface at a stand upright position, and an upright bolt projecting upward and having an external thread on an outer peripheral surface is provided in the recessed part. At the lower end of the, attach a hanging bolt that protrudes downward and has a male screw on the outer peripheral surface that is opposite to the male screw, and attach both bolts to the upper half and the lower half of the inner peripheral surface. It is characterized in that they are connected by long nuts each having a reverse female screw, fixed on both end sides of the long nuts by rotation-preventing nuts, and then the recessed recesses are filled with filling concrete.

[0006]

Since the present invention has the above-mentioned structure, it is possible to easily attach the column, and the workability is good. Further, the stand bolt and the hanging bolt are connected by a long nut, and the height of the column is adjusted by the tightening degree. Therefore, the height can be finely adjusted. Also, the height of the column is adjusted by the tightening of the bolts and nuts, and since the bolt portion is filled with the filling concrete, the height of the column does not change even after a long time.
Further, since a mounting tool such as a cylindrical wall is not used at the lower end of the column and the vertically elongated hole and the mounting bolt are not exposed on the surface, the design is not deteriorated.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. As shown in FIG. 1, a substantially rectangular parallelepiped recessed recess 2 is formed at a position where the foundation column 1 solidified with concrete is to be raised, and an upright bolt 5 protruding upward is attached to the bottom of the recess 2. A certain substrate 13 is fixed with anchor bolts 12. A male screw 3 is formed on the outer peripheral surface of the upright bolt 5. Further, if the bolt hole 17 into which the anchor bolt 12 of the board 13 is fitted is formed horizontally long, fine adjustment in the lateral direction can be performed when the pillar 1 is attached. Then, a hanging bolt 6 protruding downward is attached to the lower end portion of the pillar 1, and a male screw 4 opposite to the male screw 3 of the standing bolt 5 is attached to the outer peripheral surface of the hanging bolt 6. Has been formed.

A stopper nut 10 is fitted to the roots of the upright bolt 5 and the hanging bolt 6, and both bolts 5 and 6 are attached.
Is fitted into the long nut 9 and connected. On the inner peripheral surface of the long nut 9, female screws 7 and 8 of opposite rotation are respectively provided in the upper half and the lower half.
Since both of the bolts 5 and 6 are tightened by simply turning the long nut 9 in a certain direction, the support 1 is gradually lowered. When the post 1 reaches the appropriate height,
The lock nuts 10, 10 fitted to the roots of the bolts 5, 6 are closely attached to the long nut 9 from both ends, and the long nut 9 is fixed so as not to rotate any more. Then, the inside of the depressed recess 2 is filled with the filling concrete 11. The filling of the inside of the recessed concave portion 2 with the filling concrete 11 fixes the support column 1 and makes both bolts 5 and 6 invisible.

As in the other example shown in FIG. 2, an anchor bolt 12 having a male screw 3 from the tip is provided with a concave portion 2 at the tip.
Of the anchor bolt 12 is embedded so as to project upward from the bottom of the concave portion 2 and the base plate 13 is provided at the bottom of the concave portion 2 and fixed to the tip of the anchor bolt with a nut. The support rod 1 may be provided with an auxiliary rod 14 for reinforcing the support, and the length of the auxiliary rod 14 may be made longer than that of the support rod 1 so that the auxiliary rod 14 protrudes downward, and the outer periphery of the lower tip end portion The male screw 4 may be formed on the portion to serve also as the hanging bolt 6. Unless otherwise deviating from the gist of the present invention, the shape of the column 1 and the means for fixing the hanging bolt 6 such as the hanging bolt 6 provided on the concrete foundation, etc. Is
It can be changed as appropriate.

[0010]

EFFECTS OF THE INVENTION By using the present invention, even if there are a large number of columns, the height can be accurately adjusted to a constant height, and at the site, only a long nut is attached and solidified with filling concrete. This saves time and effort, shortens work time, and improves work efficiency. In addition, since there is no separate mounting tool and its mounting bolts at the lower end of the column, the lower part of the column is neat and therefore, the design of the column can be various. In addition, since there is no need for attachments such as cylindrical walls, ready-made parts can be used,
It can be finished cheaply.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing a structure of the present invention.

FIG. 2 is a partially cutaway front view showing another structure of the present invention.

FIG. 3 is an exploded view showing a mounting state of a pillar of the present invention.

FIG. 4 is a partially cutaway front view showing a conventional structure.

FIG. 5 is a partially cutaway front view showing another conventional structure.

[Explanation of symbols]

 1 Support 2 Recess 3 Male Screw 4 Reverse Rotating Male Screw 5 Standing Bolt 6 Hanging Bolt 7 Female Screw 8 Reverse Rotating Female Screw 9 Long Nut 10 Locking Nut 11 Filled Concrete 12 Anchor Bolt 13 Board 14 Auxiliary Rod 15 Strut Mounting Tool 16 Mounting bolt 17 Bolt hole

Claims (1)

[Claims] 1. A standing bolt (5) having a recessed concave portion (2) formed on a concrete surface at a standing position of a column, projecting upward in the concave portion (2) and having a male screw (3) on an outer peripheral surface. And a hanging bolt (6) protruding downward and having a male screw (4) around the outer peripheral surface opposite to the male screw (3) is attached to the lower end of the column (1), Both bolts (5, 6)
With reverse female screws (7, 8) on the upper half and lower half of the inner peripheral surface, respectively.
After connecting the long nuts (9) with the nuts and fixing the rotation nuts (10, 10) to both ends of the long nuts (9), the inside of the recessed recesses (2) was filled with filling concrete (11) and solidified. Characteristic strut fixing structure.