JPS6222596Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a scaffolding device used for the legs of an offshore work platform.

Conventionally, when the legs of a marine work platform are formed by three posts each having two racks in the longitudinal direction and a connecting member connecting the posts, and are installed horizontally with one of the posts at the top, When painting the legs or attaching various devices to the structure, a scaffold made of logs was erected around the legs, and the work was carried out on top of the scaffolding. However, with such conventional log scaffolding, it takes a lot of time to erect and remove the scaffolding, and when the scaffolding is removed, there are accidents where the scaffolding material hits the legs and scratches the paint. This is likely to occur, and furthermore, in the case of a scaffold made of logs, the scaffold sways considerably, which poses a problem in terms of worker safety and work efficiency.

This invention was developed with the aim of solving the problems of the log scaffolding conventionally used for the legs of offshore work platforms. The present invention provides a novel scaffolding device that can improve worker safety and work efficiency, and can be erected without directly contacting structures that require painting or inspection.

That is, the present invention has a leg of an offshore work platform formed of three posts each having two racks in the longitudinal direction and a connecting member connecting the posts in a horizontal direction with one of the posts at the top. A scaffolding device that is erected when installed, comprising a main body disposed between the top post and the bottom post of the leg, and a hook-shaped part provided at the upper end of the main body and hung on the top post. a supported part provided at the lower end of the main body and abuts against one rack of the bottom post; the hooked part includes a bracket located above the top post; and a supported part attached to the bracket and attached to the top post. a load receiving member having a protrusion supported by one rack of the bracket; and a stopper mounted at a position opposite to the load receiving member of the bracket so as to be movable toward and away from the load receiving member and capable of coming into contact with the other rack. The present invention provides a scaffolding device characterized by comprising:

Hereinafter, one embodiment of the scaffolding device according to the present invention will be described based on the drawings.

First, the legs of the offshore work platform will be explained with reference to FIG. The workbench main body 1 is supported by a plurality of legs 3A erected from the seabed 2.
Each leg 3A is composed of three posts 4 and connecting members 5A and 5B that connect each post 4,
Its cross section is triangular. In addition, the first
Although not shown in the figure, a pair of racks are attached to each post 4 in the longitudinal direction of the outer peripheral surface passing through the center of the post, symmetrical to a line passing through the center of the triangle of the leg cross section and the center of the post. is engaged with a pinion provided in a jack house 6 disposed on the workbench body 1, so that the workbench body 1 is configured to be movable up and down guided by the legs 3A. This leg 3A is formed by connecting a large number of short legs 3 in the vertical direction, and each leg 3 is completed by being painted or otherwise arranged horizontally on land. .

2 to 6 show the scaffolding device of the present invention, which is installed on a leg 3 horizontally installed on land with one of the three posts 4 as the top.

That is, in FIGS. 2 and 3, 3 is a leg installed horizontally on a base 8 via a pillow material 7, and the leg 3 has three posts as in the case of FIG. 4A, 4B, 4C and each post 4A, 4B,
It is composed of connecting members 5A, 5B, and 5C that connect 4C, and its cross section has a triangular shape. 9 is the rack mentioned above.

10 is a scaffolding device according to the present invention, which has a frame-shaped main body part 10A as shown in FIG. 3, and a hook-shaped part 11 that is hung on a top post 4A;
It has a supported part 12 that comes into contact with the bottom post 4B or 4C. Reference numeral 13 designates a plurality of work stages provided in the height direction of the scaffolding device 10, which can be mounted at any desired height through a large number of bolt holes provided at equal pitches in the main body 10A. This scaffolding device 10 is installed on the right slope of leg 3.
There are six scaffold devices in total, three on the base and three on the left inclined surface, and the left and right scaffold devices 10 are hung on the legs 3 with their respective hooked portions 11 facing each other.

A suitable strip-shaped plate 14 is suspended from the hook-shaped portion 11, and the work stage 1 of this strip-shaped plate 14 is suspended from the hook-shaped portion 11.
Logs 15 are tied to positions corresponding to the three heights, and a scaffold board 16 is provided via the logs 15 between the work stages 13 on both the left and right slope sides of the leg 3. On the other hand, 17 is a scaffold board provided between each work stage 13 on one slope side of the leg 3. Although not shown in FIG. 3, each work stage 13 is provided with a handrail 18 as shown in FIG. 2.

The hook-shaped portion 11 has a structure as shown in FIGS. 4 and 5. That is, FIG. 4 shows a post 2 in which a horizontal rack 19A is provided in the center part.
0A is shown, in which the hooked part 11 has a protrusion 22 that comes into contact with the rack 19A on the main body part 10A side, and an L connected to the main body part 10A. It is a load bearing member attached to a shaped bracket 23, and the scaffolding device 1 is
It can support a load of 0. Reference numeral 24 denotes a stopper attached to the tip of the bracket 23, that is, on the opposite side of the load receiving member to the post 20A, and prevents the protrusion 22 from coming off and falling off the rack 19A. 25 is an aluminum plate to prevent damage to the tooth surface of the rack 19A.

The stoppers 24 are bolts 2 arranged at equal pitches.
6 to the bracket 23, and therefore, for example, as shown in FIG.
9B is installed off the center part so that it is easy 19
When the hook-shaped portion 11 is hung on the post 20B whose width between both ends of the post 20B is narrowed, the attachment position of the stopper 24 to the bracket 23 may be changed as appropriate. Note that the post 20 is attached to the hooked portion 11.
Only the aforementioned protrusion 22 comes into contact with the posts 20A and 20B, and other members do not come into contact with the posts 20A and 20B, so as not to interfere with the painting of the posts 20A and 20B. The bracket 23, the load receiving member 21, and the stopper 24 are arranged at two positions in the front and rear corresponding to the frame-shaped main body 10A.
They are provided at different locations to stabilize the scaffolding device 10 and to enable the front brackets 23 and the rear brackets 23 of the scaffolding device 10 on both the left and right slopes of the legs 3 to be arranged alternately, for example. ing.

As shown in FIGS. 2, 3, and 6, the supported parts 12, which are provided at two locations in the front and back corresponding to the frame-shaped main body 10A, are attached to the racks 9 of the bottom post 4B. Although it will come into contact with
This abutting portion of the rack 9 is covered with a suitable protector 27 to prevent the supported portion 12 from damaging the tooth surface of the rack 9. In addition, as shown in FIG. 6, the supported part 12 has a sufficient length, and various legs 3B with different post-to-post dimensions,
It is designed to be able to deal with 3C without any problems.

When erecting the above-mentioned scaffolding device 10, first, the protector 27 is fitted into the portion of the rack 9 that the supported part 12 comes into contact with, and then the scaffolding device 10 suspended by a tow truck is set on the legs 3, and the scaffolding device 10 is placed on the predetermined scaffold. Board 1
The work is completed by placing 6 and 17. Also, when removing it, you can disassemble it without any problems by following the steps in reverse.

As described above, according to the present invention, scaffolding can be erected and removed extremely easily, greatly reducing the work time, and also preventing the scaffolding material from hitting the legs when removing the scaffolding. Accidents that damage the paint are less likely to occur, and as the scaffolding no longer shakes, worker safety and work efficiency can be expected to be improved, as well as safety when erecting or dismantling the scaffolding. In addition, if necessary, it is also possible to move the legs while the scaffolding remains in place. In addition, the main body is supported by the hooked part and supported part coming into contact with the racks of the posts at the top and bottom, so there is nothing that comes into contact with structures such as posts and connecting members, making it easy to paint and inspect. It can be carried out. Furthermore, the stopper of the hook-shaped part is provided so that it can be moved close to and away from the load-receiving member supported by one of the racks, so even if the posts have different widths between the pair of racks, the hook-shaped part can be held securely. Can be hung.

[Brief explanation of the drawing]

Figure 1 is a diagram showing a offshore work platform with legs as an example of a triangular structure; Figures 2 to 6;
The figures show one embodiment of the scaffolding device based on the present invention, in which Fig. 2 is a front view showing its usage, Fig. 3 is a side view of the same, and Fig. 4 shows details of the hook-shaped part. 5 and 5 are views showing a state in which the stopper position in the hook-shaped portion has been changed, and FIG. 6 is a view showing details of the supported portion. 3...Leg, 4A, 4B, 4C...Post, 9
... Rack, 10A ... Main body part, 11 ... Hook-shaped part, 12 ... Supported part, 13 ... Work stage,
21...Load receiving material, 22...Protrusion, 24...Stopper, 27...Protector.

Claims (1)

[Scope of utility model registration request] When a leg of an offshore work platform is formed of three posts each having two racks in the longitudinal direction and a connecting member connecting the posts, and is installed in a horizontal direction with one of the posts at the top, A scaffolding device comprising: a main body disposed between a top post and a bottom post of the leg; a hook-shaped part provided at an upper end of the main body and hung from the top post; and a hook-shaped part provided at a lower end of the main body. a supported portion that is provided and abuts one rack of the bottom post; the hooked portion has a bracket located above the top post; and a supported portion that is attached to the bracket and is supported by one rack of the top post. and a stopper mounted on the bracket at a position opposite to the load receiving member so as to be movable toward and away from the load receiving member and capable of coming into contact with the other rack. Characteristic scaffolding equipment.