JPH07103680B2 - Maintenance / management corridor - Google Patents

Description

TECHNICAL FIELD The present invention relates to a maintenance / management walkway (also referred to as a cat walk).

[Prior Art] Generally, on the ceiling of a large building such as a factory or a gymnasium, a corridor is provided for maintenance and inspection of air-conditioning equipment and lighting equipment.

Conventionally, this type of maintenance / management corridor has been constructed by straddling joists on a girder made of channel steel, laying expanded metal on it, and attaching a handrail (see Fig. 7). .

[Problems to be Solved by the Invention]

However, in the conventional maintenance / management corridor, actual size drawings are individually created according to the building and installation location, planed, and then assembled by welding. It was troublesome.

In addition, since it is manufactured individually according to the building and installation location, it was almost impossible to divert it.

The present invention has been proposed in order to solve the above-mentioned conventional problems, and an object thereof is to provide a maintenance / management corridor which is easy to manufacture and can be diverted.

[Means for Solving the Problems]

The corridor for maintenance and management according to the present invention forms a floor plate by providing a girder portion at the left and right edge portions of a punching metal having a short plate shape by bending this portion substantially vertically, and the left and right edge portions of the floor plate. Attaching a plurality of pillars and handrails to the end portions by hook bolts that pass through the punching holes of the floor plate, and clamps that project from the lower ends of the pillars and handrails and clamp the girder portion, and A handrail through hole is provided at an upper end portion of the handrail, and a flexible handrail is passed through the handrail through hole and screwed.

〔Example〕

Hereinafter, a maintenance / management corridor according to the present invention will be described with reference to an embodiment shown in the drawings.

1, 2 and 3 show an embodiment of a maintenance / management corridor according to the present invention. In the drawings, reference numeral 1 is a floor board, 2 is a pillar, 3 is a handrail, and 4 is a reference numeral. It is a handrail.

The floor plate 1 is formed in the shape of a rectangular plate having a size that can be manually carried by punching metal, and girders 5, 5 are continuously formed in the longitudinal direction of the floor plate 1 at left and right edge portions in the longitudinal direction. The girder portion 5 is formed by folding the edge portion of the floor plate 1 right below at a substantially right angle.

The column 2 is made of channel steel or the like, and the handrail 3 is made of mountain steel or the like. The pillars 2 are installed on the left and right edges of the floor board 1 at predetermined intervals in the longitudinal direction of the floor board 1, and the handrails 3 are installed at predetermined intervals between the pillars 2 and 2, both of which are hook bolts 6 and clamps. It is firmly fixed to the left and right girders 5, 5 of the floor plate 1 by means of 7. Further, the lower ends of the left and right columns 2 are connected by a horizontal beam 8 made of angle steel or the like.

The hook bolt 6 is formed in a substantially L shape, the hook 6a at the tip thereof is inserted into the punching hole 1a of the floor plate 1, and the male screw portion 6b on the base end side is fixed to the fixing holes 2a and 3a of the column 2 and the handrail 3, respectively. It is plugged in. Further, the tightening nut 9 is screwed into the male screw portion 6b of the hook bolt 6, and the tightening nut 9 is strongly tightened.

The clamp 7 is composed of a tightening bolt 7a and a tightening plate 7b. The tightening bolt 7a is inserted into fixing holes 2a and 3a formed in the lower ends of the support column 2 and the handrail 3, respectively, and the tightening plate is attached to its male screw portion. 7b is attached, and a tightening nut 10 is screwed onto the 7b, and the tightening nut 10 is strongly tightened.

Further, the girder portion 5 between the support 2 and the handrail 3 and the tightening plate 7b.
The lower end of the is pinched. With this configuration, the support column 2 and the handrail 3 are firmly fixed to the left and right girder portions 5, 5 of the floor plate 1.

Handrail receivers 11 are attached to the upper ends of the columns 2 and the handrails 3, respectively. A handrail through hole 11a is formed in the handrail receiver 11 so as to penetrate in the longitudinal direction of the floor plate 2. Further, a handrail fixing screw 12 is screwed into the handrail receiver 11 so as to project substantially vertically right above the inside of the handrail through hole 11a.

Then, the handrail 4 is continuously passed through the handrail through hole 11a and is fixed to the upper ends of the column 2 and the handrail 3 by the handrail fixing screw 12.

The handrail 4 is formed of a metal such as aluminum or stainless steel or a refractory synthetic resin material into a deformable strip plate shape.

The handrail 4 does not necessarily have to be a strip-shaped handrail, and may be round steel or a chain as long as it has deformable flexibility.

The maintenance / management corridor A configured as described above is installed by being hung by a plurality of suspension wires 13 and 13 under the ceiling or the like.

In addition, the necessary number is set according to the purpose of use and the scale of the building, and they are connected continuously in the longitudinal direction.

The connection between the corridors A and A is such that a connecting plate 14 is attached to both ends of the left and right girder portions 5 and 5 of the floor plate 1 so as to straddle the both, and the connecting plate 14 and the girder portion 5 are connected by a plurality of connecting bolts. It is made by bolting with 15,15.

In such a case, the bolt insertion holes (not shown) of the girder portion 5 and the connecting plate 14 are formed to be slightly larger than the diameter of the connecting bolt 15, and the connecting portion has a pin structure that can freely rotate.

If the connecting portion is configured in this way, it is possible not only to provide the walkway A with its entire length but also to provide an upslope / downslope.

Further, in such a case, since the handrail 4 is formed in the shape of a deformable strip plate, it is possible to freely follow the change in the slope of the walkway.

In addition, the connection between the corridors A and A is performed by connecting the connecting plate 16 to the end of the floor plate 1 across both sides and connecting the connecting plate 16 and the floor plate 1 with the connecting bolts 15 and 15. (See FIGS. 5 and 6).

By joining in this way, the punching holes 1a of the floor plate 1 can be used as bolt holes, so that the labor of drilling can be saved.

〔The invention's effect〕

The maintenance / management corridor according to the present invention has the following effects since it has the configuration described above.

Since there is no need to create a full-scale drawing and plate cutting, and welding is almost unnecessary, there is an effect that it can be manufactured very easily.

Moreover, there is an effect that a necessary number of corridors for maintenance and management can be installed by connecting and assembling the necessary number according to the purpose of use and the place of installation.

Further, since the assembly at the site can be performed by the hook bolt and the clamp, the assembly at the installation site can be performed very easily.

Therefore, if at least two types, a standard type and a special type installed in a special place, are manufactured, and these are appropriately combined and assembled, there is an effect that the work period can be shortened and the cost can be reduced.

As described above, the maintenance / management corridor according to the present invention is extremely easy to manufacture and assemble, and therefore is extremely practical.

[Brief description of drawings]

1 to 6 show a maintenance / management corridor according to the present invention. FIG. 1 is a partial side view thereof, FIG. 2 is a partial plan view thereof, and FIG. -A line sectional view, FIG. 4 is an enlarged sectional view taken along the line of FIG. 2, and FIG. 5 and FIG. 6 show a floor plate connecting portion. FIG. 5 is a partial plan view thereof. FIG. 7 is an enlarged sectional view taken along the line of FIG. 5, and FIG. 7 is a partial perspective view of a conventional maintenance / management corridor. A: Maintenance / management corridor, 1 ... Floorboard, 2 ... Pillar, 3
...... Handrails, 4 handrails, 5 girders, 6 hook bolts, 7 clamps, 8 horizontal beams, 9 tightening nuts, 10 tightening nuts, 11 handrail receivers, 11a …… Handrail through hole, 12 …… Handrail fixing screw, 13 …… Wire, 14…
… Coupling plate, 15 …… Coupling bolt, 16 …… Coupling plate, 17 …… Hanging hardware.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Application Laid-Open No. 51-8728 (JP, A) Japanese Patent Application No. 49-56062 (Japanese Utility Model Application No. 50-145121) A microfilm (JP, U) of which the contents were photographed (JP, U) A microfilm (JP, U) of which the contents and drawings attached to the application for Japanese Patent Application No. 52-142573 (No. 54-68430) were photographed

Claims (1)

[Claims] 1. A floor plate is formed by bending a portion of a punching metal in the shape of a short plate into the left and right edge portions of the punching metal substantially vertically to form a floor plate. The pillar and the handrail are attached by hook bolts penetrating the floor plate through the punching holes, and clamps protruding from the lower ends of the pillar and the handrail, respectively, and clamping the girder portion, and the upper end of the handrail. Handrail through hole is provided in the part,
A maintenance / management corridor characterized in that a flexible handrail is passed through this handrail through hole and screwed.