JPH06144761A - Intermediate frame setting method for moving footpath - Google Patents

Abstract

PURPOSE:To enhance workability, safety assurance and labor saving in works for setting a plurality of intermediate frames over base girders. CONSTITUTION:In the method, a plurality of intermediate frames 2 are set in order over base girders 1 in a form of paired rails disposed in parallel with each other. Each caster 10 rolling over the base girders 1 and each guide roller 11 coming in contact with each side surface of the base girders 1 are fitted on the lower sections of the four corners of each intermediate frame 2, each intermediate frame 2 is then run over the base girders 1 so as to be moved to a set position, and each caster 10 and each guide roller 11 are removed at the aforesaid position, so that setting each intermediate frame 2 over the base girders 1 is thus kept on.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing an intermediate frame on a moving walkway.

[0002]

2. Description of the Related Art Conventionally, in the construction work of a moving walkway, when installing a basic girder on a sloping floor and mounting a plurality of (for example, 20 to 30) intermediate frames on the foundation girder, first suspend the piece on the ceiling. A large number of are attached, the chain blocks are hung on them, the intermediate frame is hung up by the chain block, and the chain is moved to the next adjacent chain block, moved in the air, and set in a fixed position. On the other hand, when a moving sidewalk is installed on a horizontal floor, the intermediate frame may be transported by a hand lifter. Further, when it can be used in a building, a wrecker or a crane vehicle is loaded into the building and an intermediate frame is hung and transferred.

[0003]

Since each intermediate frame has a weight of 400 to 500 kg, moving in the air by means of the chain block has a poor workability and is extremely complicated. In addition, since it involves work in high places and work in the air, there is a problem in terms of safety. Furthermore, since the hanging piece is attached to the entire ceiling, it takes time and labor, and there is a problem that the construction period becomes long. On the other hand, in the method using the hand lifter, it is necessary to use two to four hand lifters for one intermediate frame, which requires a large number of workers to travel, and there is a problem that the work can be performed only on a horizontal floor. . In addition, the method using a tow truck cannot be used sufficiently because the movement of the tow truck in a building is restricted, and the case where it can be used is also limited.

The present invention has been made in view of the above-mentioned problems of the conventional method, and particularly in the construction work in which a large number of intermediate frames are installed on a foundation girder provided on a floor that is gently inclined in a building. The purpose of this is to improve safety, ensure safety, and save labor.

[0005]

A method of installing an intermediate frame for a moving walkway according to the present invention comprises a plurality of intermediate frames on a pair of rail-shaped foundation girders arranged parallel to each other along the moving walkway installation direction. The casters rolling on the foundation girders and the guide members contacting the side surfaces of the foundation girders are attached to the lower parts of the four corners of each intermediate frame, and then the intermediate frames are attached to the foundation girders. It is characterized by running over and moving to the installation position, at least removing the caster at that position and installing the intermediate frame on the foundation girder.

The guide member is preferably a guide roller. Further, when a moving walkway is installed on an inclined surface, the intermediate frame is placed on the lower end side of the basic girder, one end of the rope is attached, and the rope is wound by a winch provided on the upper end of the basic girder. It is preferable to run the frame.

[0007]

[Function] The basic girder does not originally function as a rail, but since it extends along the moving sidewalk installation line, it can be used as a rail. Focusing on this point in the method of the present invention, by attaching casters to the front, rear, left, and right of the intermediate frame, the intermediate frame is temporarily configured like a trolley, and the guide member prevents the rail from falling off from the basic girder, Run on the basic girder that you just saw. As a result, work efficiency can be significantly improved. When the guide member is a guide roller, running resistance is reduced and the carrying operation is facilitated, which is preferable. In addition, labor can be saved by running the intermediate frame using a winch.

[0008]

The method of the present invention will be described below with reference to the drawings. 1 is a perspective view of an essential part showing an embodiment of the method of the present invention, FIG. 2 is an overall side view showing an embodiment of the method of the present invention,
3 is a side view of an essential part showing an example of a moving walkway to which the method of the present invention is applied, FIGS. 4 and 5 are an enlarged side view of the essential part and an enlarged plan view of the essential part, and FIG. 6 is a VI of FIG. 7 is a perspective view showing an example of a caster and a guide roller according to the present invention, respectively.

First, the construction of a moving walkway to which the method of the present invention is applied will be described with reference to FIGS. The moving walkway M shown in FIG. 3 is installed on a slope or the like of an indoor ski resort, and is used as a skier conveyor. This sidewalk has a pair of two basic girders 1 installed on an inclined ground G and a plurality of intermediate frames 2 mounted on the basic girder 1 so as to be continuous. The base girder 1 is made of, for example, channel steel (see FIG. 6), and is installed on the support leg 3 in a portion apart from the ground G. The intermediate frame 2 is a structure having a substantially U-shaped cross section as shown in FIG. 6, and specifically, as shown in FIGS. 4, 5 and 1, a rectangular bottom frame 4 and its bottom frame. 4 and a handrail-shaped side frame 5 standing up from both sides.
The width of the intermediate frame 2 is as shown in FIG.
Is wider than the width of, and the whole is constructed by welding square pipes (see FIGS. 7 to 8).

As shown in FIGS. 3 and 6, the intermediate frame 2 is continuously installed on the basic girder 1 to form a continuous frame having a U-shaped cross section, and is formed into a loop for placing a person therein. Tread belt 6 and rollers 7 supporting it
It houses the mechanical parts such as. 3 to 4 and 6, 8 is a side wall, and the tread belt 6 is provided on the upper surface of the side wall 8.
There is provided a handrail belt 9 that moves with the.

Next, a method of installing the intermediate frame according to the present invention will be described with reference to FIGS. The method of the present invention relates to a method of sequentially installing the intermediate frame 2 on the basic girder 1 arranged in a rail shape in the initial stage of the installation work of the moving walkway M, and proceeds as follows.

First, as shown in FIG. 2, a long basic girder 1 is installed on an inclined gland G or the like. This procedure may be performed by a conventionally known method, for example, by shortening the basic girder 1 to be spliced on site and fixed to the gland G by an anchor bolt or the like. Next, the intermediate frame 2 is carried in below the inclined ground G, and at that position, the casters 10 and the guides are provided at four positions (see FIG. 5) on the front, rear, left and right of the bottom frame 4 of each intermediate frame 2 as shown in FIG. Install the roller 11. Further, as shown in FIG. 1, the caster 10 is installed so as to rest on the basic girder 1, and the guide roller 11 is placed so as to abut the side edge 1a of the basic girder 1. In addition,
The lower phantom line in FIG. 4 shows a state of being placed on the basic girder 1.

Then, as shown by an imaginary line in FIG. 1, one end of a wire or rope 12 is hung on the front end of the intermediate frame 2,
The other end of the rope 12 is wound up by a winch 13 installed on the upper flat part of FIG. That caster 10
Rolls on the upper surface of the basic girder 1, and the intermediate frame 2 is pulled up to the upper end of the basic girder 1 while the guide roller 11 is guided by the side edge 1a of the basic girder 1. Reference numeral 14 in FIG. 2 is the roof of an indoor ski resort.

When the first intermediate frame 2 reaches a predetermined position on the upper end of the basic girder 1, the casters 10 and the guide rollers 11 are removed, and the intermediate frame 2 is fixed on the basic girder 1. Then, the second intermediate frame 2b is pulled up in the same manner and fixed on the basic girder 1 adjacent to the first intermediate frame 2a. In this way, the predetermined number of intermediate frames 2 are sequentially arranged and fixed. It should be noted that the caster 10 and the guide roller 11 are each set as a set of 4 to 2 to 3
Prepare as many sets or intermediate frames 2 as possible
It is efficient to attach one intermediate frame 2 to the next intermediate frame 2 while pulling it up.

After installing and fixing all the intermediate frames 2 on the basic girder 1, assemble the rollers 7, the tread belts 6, the side walls 8, the handrail belts 9 and the like in the intermediate frame 2 by a conventionally known procedure. Good. Although the intermediate frame 2 is pulled up by the winch 13 in the above-described embodiment, the operator may directly push up the intermediate frame 2 when the ground G is flat or the inclination is gentle. Alternatively, another power unit may be used. Alternatively, the intermediate frame 2 may be first carried in to the upper end of the slanted ground G, and sequentially lowered one by one using a winch or the like.

Next, specific examples of the caster 10 and the guide roller 11 will be described with reference to FIGS. 7 and 8. The caster 10 shown in FIG. 7 is commercially available, and is a unit fixed to the bottom frame 4 of the intermediate frame 2 by the bracket 15 and the lock bolt 16. The bracket 15 is a bottom plate 17 and a standing wall that rises from the center of the bottom plate 17.
18 and an upper plate 19 protruding laterally from the upper end of the standing wall 18. That is, one side portion 17a of the bottom plate 17, the standing wall 18 and the upper plate
19 has a U-shaped cross section. Further, in the embodiment shown in FIG. 7, a rib 20 is projectingly provided on the tip side of the one side portion 17a of the bottom plate 17 so as to receive the square pipe 21 constituting the bottom frame 4.

The distance between the top plate 19 and the bottom plate 17 is larger than the height of the square pipe 21 so that the bracket 15 can be inserted from the side of the square pipe 21. The caster 10 is fixed to the lower surface of the one side portion 17b on the opposite side of the bottom plate 17. A reinforcing rib 22 is provided between the one side portion 17b and the standing wall 18. A screw hole 23 is formed in the center of the upper plate 19.
The lock bolt 16 is screwed into the screw hole 22.

In the unit of the caster 10 constructed as described above, the bracket 15 is inserted from the side of the square pipe 21, the bottom plate 17 is brought into contact with the bottom surface of the square pipe 21, and the tip of the lock bolt 16 is attached to each pipe 21. Press on the upper surface of the to secure.
Thereby, the vertical force received by the wheels of the caster 10 and the twisting force based on the vertical force are reliably transmitted to the square pipe 21 by the bracket 15.

The guide roller 11 shown in FIG. 8 is a square pipe 21.
It includes a bracket 24 having a U-shaped cross section so that it can be inserted from the side, a rod 25 extending downward from the center of the lower surface thereof, and a pipe 26 rotatably provided on the outer periphery of the rod 25. Rings 27 and 28 for holding the pipe 26 are fixed to the upper and lower portions of the rod 25, and a reinforcing rib 29 is provided between the rod 25 and the bottom plate of the bracket 24.

The above-mentioned unit of the guide roller 11 is inserted from the side of the square pipe 21 and firmly attached to the square pipe 21 by a clamp 30 or the like so that it can be easily removed. Using the clamp 30 to ensure lateral mounting strength is important when the intermediate frame is run on the foundation girder 1.
This is because it receives a lateral force.

The caster 10 and the bracket 15 shown in FIG. 7, and the guide roller 11 and the bracket shown in FIG.
24 is a preferred embodiment, and casters and guide rollers other than these can be used in the method of the present invention. Further, it is also possible to use a unit in which the caster and the guide roller are one unit. However, since the caster receives a vertical force and the guide roller receives a lateral force, it is preferable to use separate units in consideration of ease of mounting. Further, instead of the guide roller, a fixed guide in sliding contact may be provided as a guide member. Furthermore,
The guide roller serving as a guide member or the fixed guide may be fixed to the bottom frame 4 as long as it does not hinder the installation of the intermediate frame on the basic girder.

[0022]

According to the method of the present invention, a heavy intermediate frame can be efficiently and safely installed on the foundation girder.

[Brief description of drawings]

FIG. 1 is a perspective view of essential parts showing an embodiment of a method of the present invention.

FIG. 2 is an overall side view showing an embodiment of the method of the present invention.

FIG. 3 is a side view of an essential part showing an example of a moving walkway to which the method of the present invention is applied.

FIG. 4 is an enlarged side view of the main part of the moving walkway shown in FIG.

5 is an enlarged plan view of an essential part of the moving walkway in FIG. 3. FIG.

6 is a sectional view taken along line VI-VI of FIG.

FIG. 7 is a perspective view showing an example of a caster according to the present invention.

FIG. 8 is a perspective view showing an example of a guide roller according to the present invention.

[Explanation of symbols]

M Moving walkway 11 Guide roller 1 Foundation girder 12 Rope 2 Intermediate frame 13 Winch 10 Caster

Claims (3)

[Claims] 1. A method of sequentially installing a plurality of intermediate frames on a pair of rail-shaped foundation girders arranged in parallel with each other along the installation direction of a moving walkway. At the lower part of the four corners, casters rolling on the basic girder and guide members that come into contact with the side surfaces of the basic girder are attached, and then the intermediate frame is run on the basic girder to move to the installation position, and at that position, at least the above. An intermediate frame installation method for moving walkways, characterized by removing the casters and installing the intermediate frame on the foundation girder. 2. The intermediate frame installation method according to claim 1, wherein the guide member is a guide roller. 3. When a moving walkway is installed on an inclined surface, the intermediate frame is placed on the lower end of the foundation girder, one end of the rope is attached, and the rope is wound up by a winch installed on the upper end of the foundation girder. The intermediate frame installation method according to claim 1, wherein the intermediate frame is run.