JP2581692Y2 - Mobile hanging scaffolding equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rack rail type mobile hanging scaffolding device used for temporary repair work such as exterior repair and painting in buildings such as buildings and bridge girders. The present invention relates to a structure of a scaffold that can be overcome by using an obstacle when an obstacle protrudes on the way.

[0002]

2. Description of the Related Art In recent years, bridges over rivers and the sea, elevated roads, railroads, and the like have become widespread. For this reason, painting, repair, and inspection work on the exterior of these structures have become extremely common. Are coming. In the case of these works, a scaffold for temporary construction is generally installed around the structure. In the case of work on a vertical surface outside the side wall such as a bridge girder, for example, a gondola-type scaffold is used. Here, as the gondola-type scaffold, the present applicant has proposed a rack rail-type movable hanging scaffolding device. According to this scaffolding device, there is an advantage that it is possible to move the scaffold safely in the horizontal direction and work continuously on a long vertical surface, but there are various obstacles in the middle of the working surface. It may be installed and needs to be improved so that it can properly cope with such situations.

Conventionally, with respect to the above-mentioned movable hanging scaffolding device,
For example, there is a prior art in Japanese Patent Application Laid-Open No. 1-244068. At this point, hanging tools are attached at predetermined intervals to the support beam above the vertical work surface, and one rack rail is horizontally installed over the entire length of the work surface by the use of the hanging tools. Then, the work table is mounted on the rack rail via a hanger, and the work table is safely moved and securely stopped by the meshing rotation of the pinion wheel on the hanger side with respect to the rack rail, so that work on the work surface can be continuously performed. It is shown to be configured to do so.

[0004]

However, in the above-mentioned prior art, no measure is taken when an obstacle such as a telephone pole projects in the middle of a vertical work surface. For this reason, it is necessary to disassemble the hanger once just before the obstacle, remove it from the rack rail, and attach the hanger to the rack rail again at a position beyond the obstacle, but in this case, the work table is suspended only on the hanger. Therefore, the hanger cannot be disassembled or assembled while the worker is on the work table. So the disassembly of the hanger,
When assembling, install another scaffold near the hanger,
In addition, there is a problem that the work must be performed while the hanger and the work table are suspended by a crane, and the work becomes very complicated.

The present invention has been made in view of this point, and in the case where a rack rail type movable hanging scaffold is applied to a vertical work surface, the work of shifting the scaffold when an obstacle projects in the middle of the work surface. The purpose is to facilitate

[0006]

According to the present invention, a rack rail is suspended from one of the obstacles protruding from a vertical work surface of a building, and an operator is mounted on one of the rack rails. Is mounted so that it can be suspended and supported by a hanger, and a swing arm that rotates and suspends the movable floor and the worker together on an obstacle is installed on one of the rack rails. A scaffold shift device for transferring the moving floor to the other rack rail is provided.

[0007]

According to the above construction, on a vertical work surface of a building, various operations are performed while an operator rides on the movable floor and safely moves the movable floor by the meshing rotation of the rack rail and the hanger. If there is an obstacle such as a telephone pole on the work surface, the moving floor is temporarily suspended by the turning arm of the scaffold shift device provided on the obstacle, and the worker riding on the moving floor moves from one rack rail to the other. By removing the hanger and attaching the hanger to the other rack rail after the rotation, the moving floor can be easily and quickly moved over obstacles.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, the entire configuration will be described. Reference numeral 1 denotes a bridge girder for an elevated road, a railway, or the like,
A scaffold moving device 10 is installed horizontally along a vertical work surface 2 a outside the side wall 2 of the bridge girder 1. Work surface 2
When, for example, the utility pole 3 protrudes as an obstacle in the middle of a, the lift type scaffold shift device 3 is used by using the utility pole 3.
0 are provided, and the scaffold moving device 10 and the scaffold shift device 30 constitute a rack rail type moving and hanging scaffold 4.

The scaffold moving device 10 has a hanging metal member 11 formed in a substantially L-shape. The hanging metal member 11 hooks an upper part on the side wall 2 and attaches a large number thereof to a vertical work surface 2a outside the same at a predetermined interval. Can be Then, a rack rail 13 is horizontally hung on one of the utility poles 3 on the work surface 2a via a coupling fitting 12 to the hanging bracket 11, and a rack rail 13 'is similarly horizontally hung on the other of the utility poles 3. In addition, the pipe material 14a is framed in a cage shape by a joint 14b,
And by installing the scaffold plate 14c in, for example, upper and lower two steps,
A movable floor 14 on which an operator can work is configured, and hangers 20 are attached to, for example, three places on the upper part of the movable floor 14. A roller 15 shown in FIG. 2 is mounted at a predetermined height below the movable floor 14 so as to roll in contact with the work surface 2a to maintain the stability of the movable floor 14.

Referring to FIGS. 3 and 4, the rack rail 13 and the hanger 20 will be described in detail. Rack rail 1
3 is an inverted T-shaped rail 13a integrated with the coupling fitting 12.
And a corrugated rack 13b on the lower surface of the rail 13a.
Is formed. The hanger 20 has, for example, a driven vehicle structure that can be moved by human power of a worker, and has a case 21 formed so as to be opened and closed separately on the left and right. One pinion wheel 24 is provided below the holding wheel 22. The holding wheel 22 is rotatably mounted on the cantilever shaft 23 on the case side, rolls in contact with the left and right sides of the rail, and supports the movable floor 14 while preventing wheel removal. The pinion wheel 24 is formed in a cage shape by arranging a plurality of engagement pins 27 in a circle at the same pitch as the rack 13b between left and right disks 26 rotatably mounted on a shaft 25 on the case side. The pin 27 is configured to rotate while meshing with the rack 13b. Further, in order to fix the rack rail 13 at an arbitrary position, a lock pin 28 is provided so as to be inserted from a hole 29 on the case side and to be engaged with the rack 13b.

In this hanger 20, the case 21 is opened to the left and right of the rack rail 13, the holding wheel 22 is mounted on the rail 13a, and the engaging pin 27 of the pinion wheel 24 is
Are engaged with the rack 13b, and thereafter, the cases 21 are integrally coupled so as to close each other, and are easily mounted on the rack rail 13. When the hanger 20 is mounted on the rack rail 13, the movable floor 14 is movably suspended and supported by the rail and the holding wheel 22, and at this time, the worker A is caught by the side wall 2 and pushed or pulled to move the movable floor 14. Then, the engagement pin 27 of the pinion wheel 24 is
b while rotating at a constant speed while rotating
4 can be moved. Further, by opening the case 21, the hanger 20 is easily disassembled, and the hanger 20 and the movable floor 14 can be separated and removed from the rack rail 13.

The scaffold shift device 30 is configured such that a turning arm 33 is connected to a fixing bracket 31 fastened to the utility pole 3 via a joint 32.
Mounted to be able to pivot horizontally. A fixing bracket 34 fastened above the utility pole 3 is attached to the swing arm 33.
The reinforcement bracket 36 from the joint 35 is connected, and a heavy object can be suspended. The hook 37 can suspend the movable floor 14 via the wire 38 at the tip of the swing arm 33. Provided.

Next, the operation of this embodiment will be described. First, rack rails 13, 13 ′ are horizontally installed by hanging metal fittings 11 on a vertical work surface 2 a outside the side wall 2 in a work area other than the pole 3. By attaching the hanger 20 to one of the rack rails 13 at the end of the work area, the movable floor 14 can be suspended and supported by the rack rails 13 and moved. Therefore, the worker A rides on the moving floor 14 in this state, and the worker A himself
When the moving floor 14 is pulled while being caught by the
The moving pin 14 of the hanger 20 rotates while meshing, and the movable floor 14 safely moves at a constant speed. When stopping at a predetermined position, the lock pin 28 of the hanger 20 is engaged with the rack rail 13 so that the hanger 2 is stopped.
With 0, the movable floor 14 is locked in a stopped state. In this way, various operations on the work surface 2a are performed while moving the moving floor 14 or temporarily stopping.

When the movable floor 14 reaches the location of the utility pole 3, the movable floor 1 is connected to the hook 37 of the turning arm 33 of the scaffold shift device 30 installed on the utility pole 3 via a wire 38.
4 and the movable floor 14 is set so as to be suspended by the swivel arm 33. In this state, the worker A on the moving floor 14 disassembles the hanger 20 and
The movable floor 14 is separated from the movable floor 14 together with the hanger 20, whereby the movable floor 14 is temporarily supported by the swing arm 33. At this time, when the worker A on the bridge girder makes a half turn of the swivel arm 33, the movable floor 14 and the worker A riding thereon are rotated and moved together by the swivel arm 33, and FIG.
Is moved to the opposite side over the utility pole 3 as indicated by the dashed line.

After climbing over the utility pole 3 in this way, the worker A riding on the moving floor 14 can move the other rack rail 1 with the hanger 20 of the moving floor 14 facing the work surface 2a.
The hanger 20 is mounted again on 3 ', whereby the movable floor 14 is suspended and supported by the rack rail 13' and returned to a movable state. Therefore, thereafter, various operations on the work surface 2a are continuously performed by moving the movable floor 14 as described above.

Although the embodiment of the present invention has been described above, the hanger of the moving floor can be a driving vehicle. The configuration of the scaffold shift device provided on the obstacle is not limited to the embodiment.

[0017]

[Effects of the Invention] As described above, according to the present invention,
In the case of a rack rail type moving suspension scaffolding device configured on a vertical work surface of a building, when an obstacle protrudes from the work surface, a scaffold shift device is provided using the obstacle. The moving floor can be moved quickly, and workability is greatly improved. Since the scaffold shift device is configured to be suspended while turning on the moving floor while the worker is on the floor, the worker on the moving floor replaces the hanger from one rack rail to the other rack rail. be able to. This eliminates the need to provide a separate scaffold, greatly simplifying construction and increasing safety.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a movable hanging scaffolding device according to the present invention.

FIG. 2 is a side view of the embodiment.

FIG. 3 is a longitudinal sectional view of a rack rail and a hanger.

FIG. 4 is a cross-sectional view of the same.

[Explanation of symbols]

 2a work surface 3 telephone pole 4 movable hanging scaffold 10 scaffold moving device 13, 13 'rack rail 14 moving floor 20 hanger 30 scaffold shift device 33 swivel arm

Claims (2)

(57) [Scope of request for utility model registration] 1. A rack rail is hung on one and the other of an obstacle protruding from a vertical work surface of a building, and a movable floor on which an operator rides on one of the rack rails is suspended and supported by a hanger and moved. A scaffold shift device that is mounted so that it can be mounted on the obstacle, and a swing arm that hangs the moving floor and the worker together on the obstacle and rotates the moving floor, and transfers the moving floor from one rack rail to the other rack rail is provided. A moving hanging scaffolding device. 2. The moving floor hanger is detached from one rack rail and remounted on the other rack rail by an operator of the moving floor suspended and supported by a swing arm. The mobile hanging scaffolding device according to the above.