JPH102082A - Assembly structure of handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembly structure which is simple in the assembly work, capable of reducing the construction period and the cost, and capable of keeping the sufficient strength. SOLUTION: In an assembly structure of a handrail, a hollow support 2 is fitted to a pedestal concrete 1, and a top rail 4 is stretched above the support 2. The support 2 is fixed to the pedestal concrete 1 by a long bolt 7 inserted therein, a lower end of the bolt 7 is tightened to an insert 12 having an exclusive plate embedded in the pedestal concrete 1, fixed to the pedestal concrete 1 by a first nut 16 through a water stopping packing 15, and a top rail receiving plate 8 on which a through hole 20 to project the upper end of the bolt 7 is formed is fitted to an upper end of the support 2. The support 2 is pressed against and fixed to the pedestal concrete 1 by tightening a second nut 19 fitted to an upper end of the bolt 7 from an upper part of the top rail receiving plate, and a top rail 4 is fitted to the top rail receiving plate 18 covering an upper end of the bolt.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly structure for a handrail attached to a veranda or stairs.

[0002]

2. Description of the Related Art Conventionally, as a method of attaching a handrail to a veranda or the like, various methods such as a pre-installation method and a post-installation method have been used. Handrails are usually constructed by erecting a plurality of pillars on a concrete base of a veranda and suspending a top rail over the pillars. The following are specific examples of the method of attaching the columns. The base anchor is embedded in the base and the bottom of the column is welded to the base anchor. This is usually used for RC construction. The sheath tube is embedded in the base, and the mortar is injected by inserting the bottom of the column into the sheath tube. The bottom of the support is fixed to an anchor bolt using a fitting (for example, Japanese Utility Model Publication No. 4-4739).

[0003]

However, the method of welding the bottom of the column requires complicated work on site, and inevitably increases the construction cost. In addition, the method of fixing to the bottom of the column using a sheath tube requires not only complicated work such as mortar filling and plastering, but also sealing around the column is required. Cracks may occur due to the separation of the skin due to penetration of the skin. In addition, in order to embed the bottom of a large-diameter pillar directly into the base, there is also a problem that, for example, when reinforcing steel is embedded in the base concrete at a pitch smaller than the diameter of the pillar, a part of the reinforcing bar must be cut off. is there. The method of fixing the bottom of the column with the mounting bracket requires many large metal fittings. Furthermore, in the conventional handrail mounting structure, only the bottom of the column is mounted on the base, and sufficient strength is maintained so that the handrail does not collapse even when a force is applied to the upper part of the mounted handrail. There is a problem that is difficult.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and assembling a handrail capable of simplifying an assembling operation, shortening a construction period and reducing costs, and maintaining sufficient strength. It is intended to provide structure.

[0005]

SUMMARY OF THE INVENTION The present invention relates to an assembling structure of a handrail having a plurality of hollow columns attached to a base, and a top rail extended over the columns. Is fixed to the base by a bolt longer than a support inserted through the base. The lower end of the bolt is fastened to the base and the base is connected to the base by a first nut via a waterproof packing. A top rail receiving plate fixed to a base and having an insertion hole for projecting an upper end of the bolt at an upper end of the column is attached, and a second rail attached to an upper end of the bolt from above the top rail receiving plate. The nut is tightened to fix the column to the base, and a top rail is attached to the top rail receiving plate so as to cover an upper end of a bolt. In the present invention, preferably, a fastener such as an insert or a grip anchor to which the lower end of the bolt is screwed is embedded in a position where the support of the base stands.

According to the invention, a bolt longer than the support is fixed to the base, and the support is erected on the bolt. The lower ends of the bolts are fastened to the base and fastened to the base by a first nut via a waterproof packing. Then, the column is pressed and fixed to the base by tightening the second nut attached to the bolt from above the top rail receiving plate attached to the upper end of the column. That is, since the column is firmly fixed to the base by the bolts inserted into the column, the mounting strength is sufficiently large as compared with the conventional method in which the column itself is fixed to the base only at the bottom. In addition, since the lower end of the bolt is fixed by a nut via a waterproof packing, deterioration of the base concrete due to flooding is also prevented. The mounting operation is also simple, without requiring welding or mortar filling, so that the construction period can be shortened and the cost can be reduced.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a veranda handrail structure according to an embodiment of the present invention. The handrail of this embodiment can be attached at a PC factory or attached later. A plurality of hollow pillars 2 are erected on a base concrete 1 of a veranda, and a handrail is assembled by suspending a top rail 4 over the pillars 3. The support 2 is, for example, a square pipe made of aluminum. A lower chord member 5 is disposed near the lower end of each of the columns 2, and a lattice 6 is erected between the lower chord member 5 and the top rail 4 at a predetermined interval.
As shown in FIG. 1 (b), a bolt 7 longer than the pillar 2 is inserted into the support 2, and the lower end of the bolt 7 is fixed to the base concrete 1 by screwing, and is fixed to the upper end of the bolt. The top rail 4 is mounted via a top rail receiving plate 8.

FIG. 2 specifically shows a mounting structure of the column 2 in the case of the PC method. In the base concrete 1, a concave portion 11 for forming a horizontal surface at the foot of the support is previously formed, and an insert 12 with a dedicated plate is embedded in the concave portion 11, and the lower end of the bolt 7 is screwed to the insert 12. You. In this embodiment, the bolt 7 is
16φ full threaded bolt. A first nut 16 and a watertight packing 15 composed of a butyl rubber 13 and a pedestal 14 made of nylon are attached to the lower end of the bolt 7 in advance. After the bolt 7 is screwed to the insert 12 with a dedicated plate, a washer is attached. By tightening the first nut 16 through the lower end, the lower end of the bolt 7 is firmly fixed to the base concrete 1.

Then, the column 2 is covered from above with the bolt 7 having the lower end fixed, and the top rail receiving plate 8 is bridged over the plurality of columns 2. An insertion hole 20 for the bolt 7 is formed in the top rail receiving plate 8, and the upper end of the bolt 7 projects from the insertion hole 20 to an upper portion of the top rail receiving plate 8. A second nut 19 is fitted to the upper end of the bolt via a pedestal 17 and a spring washer, and the upper end of the bolt 7 is fixed to the top rail receiving plate 8 by tightening the second nut 19. The column 4 is fixed to the base concrete 1 by pressure welding.

[0010] On both side surfaces of the top rail receiving plate 8, engagement recesses are provided. The top rail 4 is provided on the inner surface with a projection that engages with the concave portion, and is fitted into the top rail receiving plate 8 with one touch. As a result, the top rail 4 is bridged over the upper end of the column 2 in a state of covering the upper end of the bolt.

As shown by the broken lines in FIG. 2, the lower chord member 5 is attached to the column 2 at both ends by using an angle piece 21. A plurality of lower chord members 5 are provided between the lower chord member 5 and the top rail receiving plate 8. The lattices 6 are arranged, for example, with the upper end inserted into the hole formed in the top rail receiving plate 8 and the lower end inserted into the hole formed in the lower chord material 5. Actually, these columns 2, lower chord members 5, top rail receiving plates 8 and grids 6
Is assembled in advance before assembling with the bolt 7.
A panel such as a glass plate may be fitted instead of the grid 6.

According to this embodiment, the handrail strut is assembled by a full-screw, bolt-type construction method, and no complicated work such as welding or mortar injection using a sheath tube is required. Therefore, it is possible to reduce the construction period and cost. Replacement of handrails is easy. In addition, compared to the conventional structure in which the support itself is fixed to the base at the bottom, a strong handrail in which the support is firmly fixed above and below the long bolt can be obtained. In particular, the lower end portion of the bolt is fastened by a nut via a waterproof packing and is stably held on the base. Also, unlike the structure in which the pillar itself is embedded in the base, the seal is assured, and deterioration of the concrete due to flooding is prevented. Further, as compared with a structure in which the support is directly embedded in the base concrete, the diameter of the bolt receiver to be embedded may be smaller than the support, so that it is possible to avoid a situation in which the reinforcing bars in the base concrete must be cut.

FIG. 3 shows an embodiment of the support column mounting structure in the case of the retrofitting method, with respect to portions different from FIG. In the case of this embodiment, a grip anchor 31 is driven into the base concrete 1 on site, and the lower end of the bolt 7 is screwed to the grip anchor 31. Bolt 7
At the lower end of the base, a watertight packing 15 and a nut 16 using a pedestal 14 for correcting the inclined surface of the base are attached. By tightening the nut 16, the bolt 7 is firmly fixed to the base. The structure of the upper part of the support is the same as that of FIG. According to this embodiment, the same effect as that of the previous embodiment can be obtained.

The present invention is not limited to the above embodiment. For example, in the embodiment, all the threaded bolts are used as the bolts, but it is not necessarily required that all the threads be threaded,
It is only necessary that screws are provided at least in predetermined ranges at both ends. In the embodiment, the handrail of the veranda has been described.
In addition, the present invention can be similarly applied to roof fence handrails and stair handrails.

[0015]

As described above, in the handrail according to the present invention, a bolt longer than the column is fixed to the base, and the column is erected so as to be fitted on the bolt. The column is tightened by a first nut via a packing and fixed to the base, and the column is tightened with a second nut mounted on a bolt from above a top rail receiving plate mounted on the upper end of the column. Is fixed by pressure. Therefore, the mounting strength of the column is large. The installation work is also simple without the need for welding or mortar filling, and the construction period and cost can be reduced.

[Brief description of the drawings]

FIG. 1 shows an assembly structure of a handrail according to an embodiment of the present invention.

FIG. 2 shows a specific example of a column assembly structure of the embodiment.

FIG. 3 shows a column assembly structure according to another embodiment.

[Explanation of symbols]

1 ... base concrete, 2 ... post, 4 ... top rail,
5 ... lower chord material, 6 ... lattice, 7 ... bolt, 8 ... top rail receiving plate, 12 ... insert with dedicated plate, 15 ... watertight packing, 16 ... first nut, 19 ... second nut,
31 ... Grip anchor.

Claims (2)

[Claims] 1. A plurality of hollow columns are attached to a base,
An assembling structure of a handrail constructed by spanning a top rail on top of these pillars, wherein the pillars are fixed to the base with bolts longer than the pillars inserted therethrough, A top with a lower end of the bolt fastened to the base and fixed to the base with a first nut via a watertight packing, and a through hole formed at an upper end of the support post to project an upper end of the bolt. A rail receiving plate is attached, and a second nut attached to an upper end of the bolt is tightened from above the top rail receiving plate, whereby the support is pressed and fixed to the base, and a bolt upper end is attached to the top rail receiving plate. A handrail assembly structure wherein a top rail is attached so as to cover the handrail. 2. A handrail according to claim 1, wherein a fastener such as an insert or a grip anchor to which a lower end of the bolt is screwed is embedded in a position of the base where the support is to be erected. Assembly structure.