JPH1061174A - Gondola device for work, and gondola rail laying and disassembling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform work by approaching a work part of a structure by using these extending parts by extending these members, by constituting a floor surface member and a handrail member of a gondola to perform the work on the structure so as to be freely extensible-contractible in the travel direction of the gondola. SOLUTION: An engaging groove 17 of a rear end part of rail members 15 is engaged with an engaging part 13 of a rear receiving member 3, and is interposed between receiving pieces 12, and the rear end part is supported, and a tip part of the rail members 15 is raised, and a tip part of a web 16 of the rail members 15 is interposed between the front receiving piece 12, and the rail members 15 are fixed to receiving members 3 by bolts-nuts l8a and 18b. The bolt-nut 18a is removed from the rear rail member 15, and the engaging grooves 17 of the rail members 15 are removed from the engaging parts 13 of the receiving members 3, and an operator draws back. When work is performed on a corner part of a structure 1, a floor surface member 30 and extending parts 32 and 33 of a handrail member 31 are extended in the work direction A, and the work is performed by using these extending parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a working gondola apparatus and a method for erection and disassembly of a gondola rail used when manufacturing structures such as hulls, bridges, and steel buildings.

[0002]

2. Description of the Related Art Heretofore, when performing high-altitude work when manufacturing structures such as hulls, bridges, and steel structures, unit-type scaffolds and hanging-type scaffolds have been provided. However, working at high altitudes with such a scaffolding device has not been safe enough.

[0003] Therefore, a traveling gondola has been used in which a rail member (also referred to as a trolley rail) is mounted on a structure, and travels along the rail member.

[0004]

However, in the above-mentioned conventional traveling gondola, a large amount of labor and time are required for the work of erection and disassembly of the rail members on the structure.

[0005] By the way, since the gondola needs to run also at the corner of the structure, a rail member having a large radius so that the gondola can run is attached to the corner. And in such a place, the distance between the gondola and the corner part is large, and work cannot be performed.In such a place, work is performed using the above-described scaffolding device, and work efficiency is reduced. It is the present situation.

Accordingly, an object of the present invention is to provide a working gondola apparatus and a method for erection and disassembly of a gondola rail which can solve the above-mentioned problems.

[0007]

Means for solving the problems according to the present invention include a floor member for an operator to work on a structure and a hand standing from an edge of the floor member. A gondola composed of a sliding member, a rail body attached to the structure for guiding the gondola along the working direction, and a traveling device for traveling the gondola along the rail body. The floor member and the handrail member are configured to be extendable and contractible in the traveling direction of the gondola.

Further, by fixing each end of the rail member having a predetermined length to receiving members provided at predetermined intervals on the structure side, the rail members are sequentially installed in the traveling direction of the gondola and the rear rail is installed. The process of sequentially removing the member from the receiving member is repeated, and when the rail member is fixed to the receiving member, after the insertion portion formed at the rear end of the rail member is inserted into the inserted portion formed on the receiving member and locked. When the front end is fixed to the receiving member and the rail member is removed from the receiving member, by removing the front end from the receiving member and then removing the insertion portion of the rear end from the receiving portion of the receiving member, This enables the construction and dismantling of rails while moving the gondola along the working direction without using a hoist.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. The embodiment of the present invention relates to a work gondola device 2 and a gondola rail erection / building device used when manufacturing a structure 1 such as a hull, a bridge, and a steel building.
It is a dismantling method.

First, a working gondola apparatus 2 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. The receiving members 3 attached at predetermined intervals in the working direction A of the structure 1 will be described.
A rail body (for example, T-shaped steel is used) 4 is attached to the rail body 4, and a traveling device 6 and a pair of hanging ropes (for example, wire ropes are used) 7 a and 7 b are attached to a flange portion 5 of the rail body 4. And a gondola 8 that is suspended so as to run freely.

Each receiving member 3 is provided with a reinforcing member 10 of the structure 1.
A receiving piece 12 is attached so as to sandwich the web 11 from both sides, and a small plate-shaped engaging portion 13 is formed between the receiving pieces 12.

The rail body 4 is constituted by arranging a plurality of rail members 15 formed at a predetermined length (formed substantially equal to the spacing between the receiving members 3) in the working direction A. The rear end 16 intervenes between the receiving pieces 12 and the engagement groove (insertion portion) 17 formed in the rear end engages with the engaged portion (inserted portion) 13 so that the bolt / nut 18 a The front end of the rail member 15 intervenes between the receiving pieces 12 of the front receiving member 3 and is fixed between the receiving pieces 12 with bolts and nuts 18b.

The traveling device 6 includes a drive truck 20 disposed forward, a driven truck 22 connected rearward to the drive truck 20 via a connecting member 21, and a drive motor 23 mounted on the drive truck 20. A driving roller 25 for rolling the flange portion 5 by rotation of the driving motor 23, a driven roller 26 for rolling the flange portion 5 supported by the driven carriage 22, and an intermediate support member for supporting the connecting member 21 in the middle. Roller 2 Rolling Flange 5 Supported by 27
And 8.

The gondola 8 includes a floor member 30 for an operator H to work on the structure 1 and a handrail member 31 standing upright from an edge of the floor member 30. The surface member 30 and the handrail member 31 have elastic portions 32 and 33, respectively.
Is guided to the fixed portion side via a guide roller 34 (for example, rotatably fitted in a dovetail groove) so that it can expand and contract in the working direction A.

A support leg 35 with casters is provided on the lower surface of the gondola 8 to support the gondola 8 when it descends and lands. One end (upper end) of each of the hanging ropes 7a and 7b is connected to a driving bogie 20 and a driven bogie 22.
And a pair of elevating devices (for example, a winch device) for raising and lowering the gondola 8 by winding the other ends of the hanging ropes 7a and 7b around the gondola 8. The gondola 8 has a pair of winding drums 4 for winding each of the hanging ropes 7a and 7b.
The winding drums 40 and 41 have the same diameter, and are rotatably supported by the floor member 30 via brackets 42 and 43. The center of rotation of the relay ropes 4a is arranged at a different height, and the front hanging ropes 7a and 7b
The upper and lower winding ropes 7a and 7b are wound around the rear winding drums 40 and 41 from above via the relay rollers 44 and 45, respectively. It is wound from.

As shown in FIG. 5, each lifting device 37 is arranged at a position shifted from the center of the floor member 30 of the gondola 8 in the width direction. In other words, the center of the floor member 30 in the width direction is shifted from the suspension fulcrum toward the wall surface 1A of the structure 1.

Further, as shown in FIG.
Rotates the rotary member 56 around the central axis, a rotating member 56 that winds the hanging ropes 7a, 7b inside the main body 55, an insertion passage 60 through which the hanging ropes 7a, 7b pass. Gear mechanism 57 (connected to the output shaft of a lifting motor (not shown)) and the hanging ropes 7a and 7b wound around the rotating member 56 are pressed against the peripheral surface of the rotating member 56. A binder member 58, a pressing mechanism 59 for operating the binder member 58 in a direction in which the hanging ropes 7 a and 7 b are pressed against the peripheral surface of the rotating member 56, and a brake mechanism for braking the rotation of the rotating member 56. A brake mechanism (not shown) is provided.

In the lifting device 37, the rotating member 56 is rotated by releasing the brake mechanism and driving the lifting motor, so that the hanging ropes 7a and 7b are wound around the winding drums 40 and 41. Twice or withdraw, the main body 55
(Gondola 8) can be raised and lowered.

A limit switch 47 for detecting the upper limit position of the gondola 8 is attached to the driven carriage 22. In FIG. 1, reference numeral 48 denotes a control device for controlling the driving of the lifting device 37 and the drive motor 23. Reference numeral 50 denotes a switch connected to the control device 48 for operating the lifting device 37 and the drive motor 23. Pendant switch).

In the method of erection and disassembly of the gondola rail according to the embodiment of the present invention, the engaging groove 17 at the rear end of the rail member 15 is engaged with the engaging portion 13 of the rear receiving member 3 and the receiving piece is provided. 12, the rear end is supported, and in this state, the front end of the rail member 15 is lifted and the rail member 1 is lifted.
The front end of the web 16 is interposed between the front receiving pieces 12, and the rail member 15 is fixed to the receiving member 3 with bolts and nuts 18a and 18b. Then, operate the switch 50,
When the drive roller 23 is driven by driving the drive motor 23, the driven roller 26 and the intermediate roller 28 are driven to move the gondola 8 in the working direction A of the structure 1. Work on 1

When the operation of the predetermined location is completed and the gondola 8 is to be moved further in the working direction A, the rear rail member 15 is moved forward. With the rope 7c attached, the bolts and nuts 18a removed, and the bolts and nuts 18b removed and suspended by another rope, the engaging groove 17 of the rail member 15 is removed from the engaging portion 13 of the receiving member 3. Then, the removed rail member 15 is drawn by the worker H.

When the gondola 8 is to be moved further in the working direction A, the rail member 15
Is installed in front of the gondola 8 as described above.

The gondola 8 is moved in the working direction A while forming the rail body 4 by sequentially repeating the mounting and removing of the rail member 15 as described above, and the worker H works on the structure 1.

As described above, the engaging groove 17 at the rear end of the rail member 15 is engaged with the engaging portion 13 of the rear receiving member 3 and is interposed between the receiving pieces 12 to support the rear end. The web 1 of the rail member 15 is lifted by lifting the tip of the member 15.
6 is inserted between the front receiving pieces 12 and bolts
The rail member 15 is fixed to the receiving member 3 by the nuts 18a and 18b, and the bolt / nut 18
a, and by removing the engaging groove 17 of the rail member 15 from the engaging portion 13 of the receiving member 3 so as to be retracted by the worker H, the rail member 15 can be easily installed and dismantled. Efficiency can be improved.

As shown in FIG. 4, when working on the corner portion of the structure 1, an arc-shaped rail member 15 previously set on the gondola 8 is used in the same manner as described above. However, in this case, depending on the diameter of the rail member 15, the gondola 8 is largely separated from the corner of the structure 1.

Then, as shown in the figure, the worker H extends the expandable portions 32, 33 of the floor member 30 and the handrail member 31 in the working direction A, and the worker H makes the expandable portions 32, 33.
By performing the work using 33, it is possible to approach the work part of the structure 1, so that the work is easy, and it is not necessary to provide a special scaffolding device as in the related art, thereby improving the work efficiency. Can be.

When the worker H works by extending the expandable portions 32 and 33, the entire gondola 8 may be inclined. However, when the worker H is placed on the center of the expandable portions 32 and 33,
The stability of the entire gondola 8 is maintained such that the (stability coefficient) becomes 1.5 or more.

When it is necessary to adjust the height of the floor member 30 in the gondola 8, the pair of lifting devices 37 are driven to rotate the winding drums 40 and 41, and the hanging ropes 7a and This is performed by winding or drawing 7b around the winding drums 40 and 41.

At this time, the rotation centers of the respective winding drums 40 and 41 are arranged at different heights, and the front hanging rope 7a is connected to the rear winding drum 4 via the relay roller 44.
1 from above, and the rear hanging rope 7b is wound from below on the front take-up drum 40 via the relay roller 45, so from the relay rollers 44, 45 to the respective take-up drums 40, 41. And the fleet angle can be sufficiently set, and therefore, each of the hanging ropes 7a,
It is easy to make the 7b uniform around the winding drums 40 and 41.

Further, since each lifting device 37 is disposed at a position shifted from the center of the floor member 30 of the gondola 8 in the width direction, the center of the floor member 30 in the width direction is moved from the suspension fulcrum to the structure. 1, the worker H can work at a position close to the wall 1A of the structure 1, and the gondola 8 is lifted while the worker H rests on the floor member 30. At this time, it is possible to prevent the worker H and the traveling device 6 from interfering with each other and to raise the gondola 8 to a high position.

The gondola 8 according to the embodiment of the present invention has the anti-floor member 30 when the worker H is not on the floor.
Side is slightly inclined to the side, and is designed so that the worker H stabilizes in a state where the worker H rests on the most wall surface 1A side of the floor member 30. However, the work is performed with the gondola 8 stopped. In consideration of the stability of the case, for example, a contact member (for example, a fixing magnet) that restricts the inclination angle by hitting the wall surface 1A of the structure 1 is attached to the handrail member 31 of the gondola 8, and this contact member is attached to the structure 1 during operation. The gondola 8 may be fixed to the wall surface 1A.

Also, as shown in FIG.
If the partition 5 is provided, an opening 66 is formed at a predetermined location (for example, the upper portion) of the partition 65, so that even if the partition 65 exists, the gondola 8 can be attached to the structure without removing the gondola 8 from the rail body 4. 1 can be moved along the wall surface 1A, and work efficiency can be improved.

[0033]

As is apparent from the above description, according to the present invention, the floor member and the handrail member of the gondola for working on the structure are configured to be extendable and contractible in the traveling direction of the gondola. When the gondola moves away from the corner of the structure, the floor members and handrail members are extended in the working direction, and the worker uses the extension to approach the working part of the structure. Therefore, it is not necessary to provide a special scaffolding device even when performing a work on a corner portion, and therefore, the efficiency of work on a structure can be improved.

When the rail member is fixed to the receiving member, the insertion portion formed at the rear end of the rail member is inserted into a receiving portion formed at the receiving member, locked, and then received at the front end portion. When the rail member is removed from the receiving member, the front end is removed from the receiving member, and then the insertion portion at the rear end is removed from the receiving portion of the receiving member. Demolition can be performed easily, and the efficiency of work on the structure can be improved.

[Brief description of the drawings]

FIG. 1 is an overall front view of a working gondola device according to an embodiment of the present invention in a state where a rear rail member is suspended.

FIG. 2 is an overall front view showing a state in which the hanging rope is wound around a winding drum.

FIG. 3 is a plan view of the gondola.

FIG. 4 is a schematic plan view showing a moving state at a corner of the gondola.

FIG. 5 is a side view showing the working state.

FIG. 6 is a sectional view showing a schematic configuration of the lifting device.

FIG. 7 is a perspective view showing another embodiment, in which a gondola is passing through an opening of a partition.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Structure 1A Wall surface 3 Receiving member 7a Hanging rope 7b Hanging rope 8 Gondola 12 Receiving piece 13 Engaging part 15 Rail member 17 Engaging groove 23 Drive motor 25 Drive roller 30 Floor member 31 Handrail member 32 Telescopic part 37 Lifting device 40 Winding drum 41 Winding drum 65 Partition wall A Working direction H Worker

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Yoshihiro Miyagawa 5-28 Nishikujo, Konohana-ku, Osaka-shi, Osaka Inside Hitachi Zosen Corporation (72) Inventor Akifumi Mitsuka 5-chome, Nishikujo, Konohana-ku, Osaka-shi, Osaka 3-28 Hitachi Zosen Corporation (72) Inventor Shinichi Munakata 5-28 Nishikujo, Konohana-ku, Osaka-shi, Osaka Prefecture 3-72 Hitachi Zosen Corporation (72) Yoshio Nakajima Nishikujo, Konohana-ku, Osaka, Osaka 5-3-28 Hitachi Shipbuilding Co., Ltd.

Claims (2)

[Claims] 1. A gondola comprising a floor member for allowing an operator to work on a structure and a handrail member erected from an edge of the floor surface member, and a gondola attached to the structure. A work gondola device including a rail body for guiding the gondola along the work direction and a traveling device for traveling the gondola along the rail body, wherein the gondola has a floor surface member and a handrail member. A working gondola device characterized in that it can be extended and contracted in the traveling direction of the gondola. 2. A method for erection and disassembly of a gondola rail for moving a gondola for an operator to work on a structure along a working direction, wherein each end of a rail member having a predetermined length is provided. By repeatedly fixing to the receiving member provided at predetermined intervals on the structure side, the step of sequentially installing the rail member in the traveling direction of the gondola and sequentially removing the rear rail member from the receiving member is repeated, and the rail member is received by the receiving member. When fixing, the insertion part formed on the rear end of the rail member is inserted into the insertion part formed on the receiving member and locked, then the front end is fixed on the receiving member, and the rail member is removed from the receiving member. In this case, the gondola rail erection and disassembly method comprises removing the front end portion from the receiving member, and then removing the insertion portion at the rear end portion from the receiving portion of the receiving member.