JPS61229062A - Moving scaffold apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a mobile scaffolding device used for various operations such as painting and inspection inside a ship hold.

(Conventional technology) Traditionally, temporary scaffolding was erected inside a ship's hold, used for the intended work, and then dismantled, but assembling and dismantling it involved dangerous work at high places and required a considerable amount of time and effort. There was an inconvenience.

Therefore, in order to eliminate such inconveniences, many in-ship scaffolding devices such as gondola-type scaffolding devices have been proposed in the past as an alternative to prefabricated scaffolding devices.

(Problem that the invention aims to solve) However, while these conventional scaffolding devices in a ship's hold have the advantage that they can be used immediately after being carried into the ship's hold and installed, they require a large construction hole to be made on the hull deck for loading and unloading. However, at present, it has not been widely put into practical use due to the necessity of changing the hull deck reinforcing structure itself, or the inability to easily and quickly change the installation location.

The present invention is a mobile scaffolding device developed to solve the above-mentioned conventional problems, and when used for work inside a ship's hold, it can be packed compactly so that it can be carried into the ship's hold through a small construction hole in the hull deck. In addition, it can be easily and quickly relocated onto a hull structural member at a predetermined position in a ship's hold.

(Means for Solving the Problems) The mobile scaffolding device of the present invention is a mobile scaffolding device that is supported and fixed by spanning over two adjacent structural members such as ship bodies that are arranged in parallel in the horizontal direction. a sliding beam equipped with a beam clamp for gripping two adjacent structural members at the same time; a support frame equipped with a support frame clamp for gripping one structural member; The support frame and the sliding beam are engaged with each other so that they can be moved and supported in the longitudinal direction of the sliding beam, so that one of the supporting frame and the sliding beam can be held in a supporting state in which the other grips a structural member. The structure is such that the workbench on the support frame can be relocated by moving the workbench.

(Example) The details will be explained below with reference to the drawings for an example applied to a tanker.

In the figure, reference numeral 1 denotes a sliding beam, and projecting portions 2 are formed over the entire length at the upper portions of both sides of the beam 1.

Reference numeral 3 denotes a sliding beam clamp, which can be rotated in and out of the lower surface of the sliding beam 1 by a clamp cylinder 4.
It is attached to via pin 5. The sliding beam clamps 3 are provided at intervals between hull structural members, which will be described later.

Reference numeral 6 denotes a beam receiving portion, which is protruded from the lower surface of the sliding beam 1 which is suppressed by the sliding beam clamp 3-.

Reference numeral 7 denotes a support frame, and an upper roller 8 and a lower roller 9 are rotatably attached to the lower surface of the frame 7 via brackets 10 and 11. These upper rollers 8 and lower rollers 9 are arranged to sandwich the overhanging portion 2 of the sliding beam 1 from above and below, so that the support frame 7 is supported so as to be movable in the longitudinal direction of the sliding beam 1.

Clamp mounting brackets 12 are vertically provided on both sides of the support frame 7. The clamp mounting bracket 12 extends downward on both sides of the sliding beam 1, and the lower surface of the bracket 12 is flush with the lower surface of the beam receiver B.

13 is a driving sprocket driven by a motor (not shown), and 14 is a driven sprocket, which is rotatably mounted on the end of the sliding beam 1. A chain 15 connected to both ends of the support frame 7 is hung between these driving and driven sprockets 13,14. Therefore, the support frame 7 can be moved on the sliding beam 1 by chain drive by a motor.

16 is a support frame clamp, and a clamp cylinder 17
It is attached to the clamp mounting bracket 12 via a pin 18 so as to be rotatable in and out of the lower surface of the clamp mounting bracket 12.

Reference numeral 19 denotes a swing frame, which is provided on the support frame Z so as to be swingable by a swing drive device 20.

Reference numeral 21 denotes a telescopic boom that can be extended and retracted by a telescoping mechanism (not shown).
It is installed so that it can be raised and raised around 3.

24 is a workbench on which a worker rides, and a horizontal holding cylinder 2
5, pin 2 is attached to the tip of the telescopic boom 21 so that it can be held horizontally.
It is attached via 6. This workbench 24 is provided with an operation box 27 for operating all the equipment.

Reference numeral 28 denotes a workbench lower hook, which is protruded from the lower part of the workbench 24.

Reference numeral 29 denotes a hull structural member with an engineered cross section, which is arranged in large numbers horizontally at equal intervals in the ship's hold.

This device A is suspended over two adjacent hull structural members 29 at right angles and supported via beam receivers 6, and also includes a sliding beam clamp 3 and a support frame clamp 16.
It is fixed by gripping the hull structural member 29 by.

(Function) (1) Carrying in and out of the device A into and out of the ship's hold The telescopic boom 21 is aligned along the sliding beam 1 to make the device A compact, and a reversing device is attached to a hook 30 suspended from a crane (not shown). 31 and suspending the device A from the reversing machine 31 via the wire rope 32, the device A is supported by a crane by changing the left and right hanging length of the wire rope 32 by the reversing machine 31. Hang the frame vertically with the Z side facing down. In this state, the crane is operated to turn the apparatus A by 90 degrees using the turning mechanism above the turning machine 31 provided on the hull deck, as shown in FIG.

Thereafter, the apparatus A is placed perpendicularly onto two predetermined hull structural members 29 by crane operation, and is fixed by being gripped by the sliding beam clamp 3 and the support frame clamp 16.

By the above operation, the device A can be carried into the ship's hold.

By performing the operation opposite to the above, the device A can be taken out from the ship's hold.

If the width (B in the figure) of this device A is kept within the distance between the opposing stiffeners 34 at the lower part of the hull deck (for example, 40 ivy) (this is possible due to the device configuration), the device The construction hole 53 for carrying in and out can be provided without changing the hull deck reinforcing structure.

(2) Movement of this device A in the hold■ The worker operates the operation box 27 while on the workbench 24, and moves the device to the side in the movement direction ( Hook 2 at the bottom of the workbench is attached to the hull structural member 29 one pitch away from one end of the sliding beam 1.
Multiply by 8 (state C in Figure 6). In this case, telescopic boom 2
1 is tilted in the longitudinal direction of the sliding beam 1, and hung at a position where the workbench 24 will not interfere with the sliding beam 1 being moved (see FIG. 6a).

■ Next, the sliding beam clamp 3 is opened by unclamping the clamp cylinder 4, and after being retracted from the bottom surface of the sliding beam 1, it is supported by the support frame 12 via the upper roller 8 and the lower roller 9. At the same time, the sliding beam 1 is moved in the direction of the arrow by rotation of the chain 15 by the motor (state shown in FIG. 6).

■ The sliding beam 1 is stopped at a position where the sliding beam clamp 3 can grip the hull structural member 29, and the clamp cylinder 4
The sliding beam 1 is supported and fixed on the hull structural member 29 via the sliding beam clamp 3 by the clamp operation. Thereafter, the workbench lower hook 28 is removed from the hull structural member 29, and the telescopic beam 21 is shortened to its extreme position parallel to the sliding beam 1 (state C in FIG. 6).

■ After unclamping the clamp cylinder 17 and retracting it from the bottom surface of the clamp mounting bracket 12, the chain 15 is driven in reverse by the motor while being supported by the sliding beam 1 via the upper roller 8 and lower roller 9. The support frame 7 is moved in the direction of the arrow (state C in FIG. 6).

■ The support frame 7 is stopped at a position where the support frame clamp 16 can grip the hull structural member 29, and the support frame clamp 1 is stopped by the clamping operation of the clamp cylinder 17.
6, the support frame 7 is supported and fixed on the hull structural member 29 (state C in FIG. 6).

By operating the steps ① to ② above, it is possible to move this device A across the 29 groups of hull structural members one pitch at a time (7th
figure). Further, by performing the operations ① and ② and then performing the operations ① to ②, it is possible to move the object in the opposite direction. It is also possible to carry out the work with the support frame 7 installed on the hull structural member 29.

The worker operates the operation box 27 while on the workbench 24, and uses a combination of rotation, boom extension/contraction, and elevation to reach all but the bottom of the hold as shown in Figures 3, 4, and 5. Various types of work will be carried out on the inner walls of the ship's hold.

In addition, workers can work directly on the bottom of the hold.

It goes without saying that this device A can be applied not only to ship holds, but also to other structures in which structural members are arranged horizontally at equal intervals (for example, building structures before concrete pouring, large buildings).

(Effects of the Invention) As described above, the present invention allows the work scaffold to be moved horizontally across a group of structural members, as well as stably support the work scaffold on the structural member via the support frame. It can be easily and quickly relocated and work can be started immediately, greatly improving work efficiency. However, since the movement mechanism of the work scaffold is simple and compact, it can be passed through narrow places (such as construction holes), and the manufacturing cost is low.

[Brief explanation of drawings]

Figures 1 and 2 are front views showing the device A in use;
■-■ line sectional view, Figures 3, 4, and 5 are of this device A.
6 (a) (b) (c) (a) (e) are schematic diagrams showing the movement process of this device A, Figure 6a is
), and FIG. 7 is a perspective view showing how the device A is carried in and out of the ship's hold and how it is moved. 1. Sliding beam, 2. Overhang, 3. Sliding beam clamp, 4. Clamp cylinder, 5. Pin, 6.
Beam receiver, 7. Support frame, 8. Upper roller, 9. Lower roller, 10. 11-. Bracket, 12.
- Clamp mounting bracket, 13... Drive sprocket, 14... Driven sprocket, 15... Chain, 1
6.Fist/Support frame clamp, 17--Clamp cylinder, 18--Pin, 29--Hull structural member, 30--Hook, 31--Reversing machine, 32-Φ wire rope, 33-
・Construction hole.田(j) ψ & 塘H)-11-I HH1-i S 石 ↑ Procedural amendment form) July 25, 1985

Claims (2)

[Claims] (1) A mobile scaffolding device that spans, supports, and fixes over two adjacent structural members such as ship hulls that are arranged in parallel in the horizontal direction, and that simultaneously grasps the two adjacent structural members. The sliding beam has a sliding beam equipped with a beam clamp, a support frame equipped with a support frame clamp for gripping one structural member, and a workbench for work inside the hold, and the sliding beam can be moved in the longitudinal direction of the sliding beam relative to each other. A mobile scaffolding device configured to allow a work platform on a support frame to be relocated by moving one of the support frame and the sliding beam in a supporting state in which the other one grips a structural member while being supportably engaged with each other. . (2) A mobile scaffold according to claim 1, characterized in that a revolving frame is provided on the support frame, a telescoping boom is mounted on the revolving frame so that it can be raised and raised, and a work platform is provided on the telescoping boom. Device.