JPS59115766A - Scaffolding device for painting outdoor piping or the like - Google Patents

Abstract

PURPOSE:To enable safe and efficient painting on outdoor pipings, etc. by providing tiltably and rotatably a stage at the top end of the crane boom of a truck crane and erecting plural rows of assembled scaffoldings on the stage. CONSTITUTION:A stage 3 is provided to the top end of a boom 2 of a self- traveling crane, such as a truck crane 1, and several rows of assembled scaffoldings 4 are erected on the stage 3. The stage 3 is axially mounted by means of a shaft 8 to the top end of the boom and is made tiltable and rotatable by means of a cylinder 5. The stage 3 is constituted of a foundation stage 6 and an auxiliary stage 7 extending or contracting to the right or left. The scaffoldings 4 are erected in the central part of the stage 6 and at the end edges of the stage 7. Simultaneous painting of plural pipings 9 is thus made possible and the need for assembling the scaffoldings is eliminated.

Description

[Detailed Description of the Invention] The present invention is suitable for safely and efficiently painting large-diameter and long outdoor piping in steel plants, petrochemical factories, etc., or painting high-altitude outdoor structures such as bridges and pedestrian bridges. This article is about scaffolding equipment for painting.

In steel plants, oil complexes, etc., various gases, liquids, steam, etc. are transported by setting up an outdoor installation foundation consisting of a steel tower, and on top of that a large diameter metal pipe with a diameter of 1 to 3 meters is installed. This is often done by so-called pipe transport. These pipes are subject to severe corrosion due to exposure to rain and corrosive gases emitted from the factory, and require frequent repainting.

Conventional painting work involves setting up scaffolding around pipes several meters above the ground, placing netting underneath to prevent accidents from falling, and relying on scaffolding boards to help workers carry the paint machine. As a result, it took time to assemble the scaffolding, and once the painting was completed, the scaffolding had to be disassembled and reassembled repeatedly to be moved to the next location, so it took more effort and time to assemble the scaffolding than the painting work. .

The scaffolding device of the present invention is characterized by being movable, consisting of a self-propelled crane and a stage at the tip of the crane game, and is intended to streamline painting work by eliminating the need for scaffold assembly work.

This will be explained in detail below with reference to the drawings.

Figure 1 is a perspective view showing how the painting scaffolding device is used, and Figures 2 to 4 are the stage and scaffolding parts. It shows,
Fig. 2 is a front view, Fig. 3 is a plan view, and Fig. 4 is a right side view. As shown in Figure 1, this device consists of a self-propelled crane such as a truck crane (1) or a wheel crane, a stage (3) installed at the tip of the crane's boom (2), and the stage (3). 3) and several rows of assembled scaffolding (4) erected above it.

The stage (3) has a shaft (8) at the tip of the boom.
The shield 6 and the cylinder (5) are obliquely rotatable. This stage (3) consists of a basic stage (6) and an auxiliary stage (7) that extends and contracts from the basic stage to the left and right. The assembled scaffolding (4) is the foundation stage (
61 and the edge of the auxiliary stage (7), the embodiment of this device shown in FIG. 1 will be as follows.

The basic stage (6) is about 2.5 m wide and about 4 m long, and the auxiliary stages (7) (7) extending from this to the left and right can expand and contract within a range of about 2 m. Therefore, the maximum length is 8 m, and it can sufficiently cover pipes of 10 large diameters.

The height of the assembled scaffold (4) is approximately 3.3 m, and if it is made into a telescopic structure with several stages or a structure where the base can be detached or rotated, it can be placed in a low position within the base stage. The stage can be accommodated within the legal requirements for the Ritama-Katsu truck crane, and it can also be driven on public roads.

Figure 5 shows an example in which the stage (3) rotates in a horizontal plane. Indicated. Basic stage (3) (l″j: A cylinder Ql is installed at the tip of the boom (2) to enable horizontal rotation around @ #+ CIυ. In this example, the rotation is from -45° to 4
It is set within a range of 5°. With this type of stage rotation, it is possible to change the working position without moving the truck crane (υ), as shown in Figure 6. At this time, the assembly scaffold (4) is attached to the piping. In order to prevent accidents from occurring due to contact, it is advisable to install a light sensor on the assembly scaffold (4) so that it can detect when the pipe is approaching.

The painting scaffolding device having the structure as described in 1- below allows painting to be carried out along the piping without assembling scaffolding during painting work, and can be quickly moved to the painting site. Furthermore, since both the coating materials and the equipment can be moved together, the work is easier and more efficient.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the painting scaffolding device, not showing how it is used, and Figures 2 to 4 show the stage and scaffolding.
Fig. 2 is a front view, Fig. 3 is a plan view, and Fig. 4 is a right side view. FIG. 5 is a front view of another embodiment, and FIG. 6 is a plan view showing how the stage moves. (υ Truck crane (2) Boom (3)
Stage (4) Assembly scaffold (5) Ql cylinder (6) Base stage (7)
Auxiliary stage (8) Axis (9) Piping
Qυ Rotation axis (1) Optical sensor and above Applicant Okayama Osaka Coating Agent Patent Attorney Hirozo Department Figure 2 Figure 3 345- Figure 4 Figure 5 Figure 6\/ \/゛

Claims (1)

[Scope of Claims] 1. A scaffolding device for painting outdoor piping, etc., comprising a self-propelled crane, a stage provided at the tip of a crane poom, and several rows of assembly scaffolds erected on the stage. 2. The scaffolding device for painting outdoor piping, etc. according to claim 1, wherein the stage comprises a base stage installed at the tip of the boom so as to be tiltable and rotatable with a cylinder, and an auxiliary stage that extends and contracts from the base stage to the left and right. 3. A scaffolding device for painting outdoor piping, etc., according to claim 2, wherein the foundation stage is horizontally rotatably installed with respect to a mounting base installed at the tip of the boom so as to be tiltably rotatable. 4. A scaffolding device for painting outdoor piping, etc., as set forth in claim 1, wherein the assembly scaffold is erected at the center of the basic stage and the edge of the auxiliary stage.