JP2002029681A - Supporter device for man-conveyer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate an assurance of strength, and attain labor saving in installation execution work. SOLUTION: A back board 21 is fixed to a reverse surface of a foundation floor unit 22, to generate a clearance between the foundation floor unit 22 and a building beam 21, a plurality of anchor bolts 23 are fixed to the building beam 7 in the outward of the foundation floor unit 22, and a fixing plate 24 fixed to the anchor bolt 23 is inserted into the clearance and fixedly welded relating to the foundation floor unit 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support system for a man conveyor for receiving an end of a main frame such as an escalator or a moving sidewalk on a building beam.

[0002]

2. Description of the Related Art FIG. 6 is a side view showing an example of a conventional escalator. In the figure, a main frame 1 includes a main frame main body 2 and
And a support fitting 3 fixed to both ends of the main frame body 2. In the main frame main body 2, a plurality of steps 4 connected endlessly are supported. A pair of left and right balustrades 5 are erected on the main frame body 2.

FIG. 7 is a side view showing an example of a conventional escalator support structure. On the building floor 6, a building beam 7 for receiving the main frame 1 is provided. On the architectural beam 7, a base floor 8 made of a metal plate for receiving the support fitting 3 is fixed. A plurality of adjusting plates 9 for adjusting the position of the main frame 1 in the height direction are interposed between the base floor 8 and the support fitting 3. Inside the building beam 7, a plurality of reinforcing bars (rebars) 10 are arranged.

Next, FIG. 8 shows a building beam 7 of a conventional foundation floor 8.
FIG. 9 is an enlarged plan view showing the IX part of FIG. In the figure, a plurality of anchor bolts 11 are implanted in a building beam 7. The anchor bolt 11 and the foundation floor 8 are welded and fixed directly or via a reinforcing bar end member 12 as necessary.

FIG. 10 is a plan view showing another example of a conventional method of fixing a foundation floor 8 to a building beam 7, and FIG.
FIG. 12 is an enlarged plan view showing the XI portion of FIG.
It is sectional drawing which follows the I-XII line. In the drawing, a plurality of anchor bolt holes 8a are provided in the base floor body 8. An anchor bolt 13 is implanted in the building beam 7 through a part of the anchor bolt hole 8a. A nut 14 is fastened to the anchor bolt 13.

[0006]

Among the above-mentioned conventional methods for fixing the foundation floor 8, in the method shown in FIGS. 8 and 9, a butt portion between the anchor bolt 11 and the single reinforcing bar 12, or The butt portion (shown in FIG. 9) between the single reinforcing bar 12 and the base floor 8 is not necessarily in a shape suitable for welding. Therefore, in welding at this point, it was necessary to pay sufficient attention to the welding length, welding leg length, and the like in order to secure welding strength. Further, from the viewpoint of safety, the number of anchor bolts 11 may be increased, and the anchor bolts 11 and the base floor 8 may be welded and fixed in some cases.

On the other hand, in the method shown in FIG. 10, although it is easy to guarantee the seismic strength, the anchor bolt 1 is retrofitted so as to avoid the reinforcing bars 10,
It is necessary to provide an anchor bolt hole 8a larger than the diameter of No. 3 in the foundation floor body 8. For this reason, as shown in FIG. 12, a gap is generated between the anchor bolt 13 and the foundation floor 8, and the bending moment due to the seismic force is reduced by the anchor bolt 1
3 will work. On the other hand, there is a method of filling the gap around the anchor bolt 13 with mortar or the like, but it takes time and labor to construct.

Further, since the anchor bolts 13 must be constructed so as to avoid interference with the reinforcing bars 10, it is necessary to provide the anchor floor 13 with anchor bolt holes 8a of a required number or more in number. This process took time and effort.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is possible to easily assure the strength and to reduce the labor required for installation work. The purpose is to obtain a supporting device.

[0010]

According to a first aspect of the present invention, there is provided a support system for a conveyor, which is installed on a building beam and receives a main frame of the conveyor, a flat base floor, and a back surface of the base floor. Back plate that creates a gap between the foundation floor and the building beam, a plurality of anchor bolts that are fixed to the building beam outside the foundation floor, one end is fixed to the anchor bolt, It is provided with a plurality of fixing plates whose other ends are inserted into the gaps and fixed by welding to the base floor.

According to a second aspect of the present invention, there is provided a supporting device for a man conveyor, comprising a plurality of types of fixing pieces having different lengths in a depth direction of insertion into the gap, and a fixing piece of a type corresponding to the width of the gap. Are selectively used.

In a third aspect of the present invention, the supporting device for a conveyor comprises a fixing piece which is welded to a foundation floor with a thin wall.

According to a fourth aspect of the present invention, there is provided a man-conveyor support device in which a back plate divided into a plurality of sheets is fixed to the back surface of a foundation floor.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. FIG. 1 is a plan view showing a supporting device for a man conveyor according to Embodiment 1 of the present invention, and FIG.
FIG. 3 is a cross-sectional view taken along line III-III of FIG.

In the figure, a back plate 21 and a base floor 22 both made of a metal plate are installed on a building beam 7. The back plate 21 is fixed to the back surface of the foundation floor 22. The base floor 22 is larger in size than the back plate 21, and a gap is formed between the building beam 7 and the base floor 22. The gap (width dimension d) is formed inside three sides of the four sides of the base floor body 22 except for one side on the main frame 1 (FIG. 7) side of the man conveyor. The required number of anchor bolts 23 for the seismic strength is planted in the building beam 7. These anchor bolts 2
Numerals 3 are respectively arranged outside three sides of the foundation floor 22.

A metal fixing plate 24 having an anchor bolt hole 24a is fixed to each anchor bolt 23. Anchor bolt 23 is inserted into anchor bolt hole 24a.
And one end of the fixing plate 24 is fixed to the anchor bolt 23 by tightening the nut 25 to the anchor bolt 23. FIG. 4 is a perspective view showing the fixing plate 24 of FIG.

The other end of the fixing plate 24 is inserted between the building beam 7 and the foundation floor 22. Further, the fixed plate 24 and the foundation floor 22 are welded and fixed to each other by a welded portion 26. The diameter of the anchor bolt hole 24a of the fixing plate 24 is substantially the same as the diameter of the corresponding part of the anchor bolt 23 (plus about 1 mm). The thickness of the back plate 21 is set to be equal to or slightly greater than the thickness of the fixed plate 24.

In such a man-conveyor support device,
The back plate 21 is fixed to the back surface of the base floor body 22 in advance by welding or the like. At the time of installation of the man conveyor, the foundation floor 22 is placed on the building beam 7 so that the back plate 21 faces down. And
The required number of anchor bolts 23 are driven into the building beam 7.

After that, the fixing plate 24 is fixed to the anchor bolt 23.
Then, the fixing plate 24 is rotated around the anchor bolt 23 so that the other end of the fixing plate 24 is sunk into the gap below the base floor 22. After the positioning of the fixing plate 24, the nut 25 is tightened, and the fixing plate 24 and the foundation floor 22 are welded and fixed at the welding portion 26.

According to such a supporting device, since the position of the fixing plate 24 in the vertical and horizontal directions of FIG. 1 can be shifted, the anchor bolts 23 can be avoided while avoiding the reinforcing bars 10 in the building beam 7.
It is easy to arrange. In addition, if a plurality of types of fixing plates 24 having different lengths L in the depth direction of insertion into the gap are prepared, the anchor bolts 23 may extend beyond the width d of the gap below the base floor 22. Can be freely arranged.

Further, since the fixing plate 24 may be passed through the anchor bolt 23 after fixing the anchor bolt 23 to the building beam 7, the hole for the anchor bolt may be formed so that no gap is formed between the fixing plate 24 and the anchor bolt 23. 24a can be set. For this reason, the bending moment due to the seismic force does not act on the anchor bolt 23, the seismic force can be held in shear by the anchor bolt 23, the reliability in strength is improved, and the anchor bolt 2 in the seismic strength is improved.
It becomes easy to secure the required number of three.

Further, since a sufficient fillet welding can be performed between the foundation floor 22 and the fixing plate 24, the welding length and the welding leg length can be designated, and the strength assurance in terms of seismic strength can be ensured. It can be done easily. Further, since the number of the anchor bolts 23 can be minimized and the anchor bolts 23 can be installed after the foundation floor 22 is installed, the labor of the installation work can be reduced.

Embodiment 2 FIG. In the first embodiment,
Although one back plate 21 is fixed to the back surface of the base floor 22, the back plate may be divided into a plurality of sheets. In this case, for example, as shown in FIG. 5, the divided back plate 27 is at least a portion where the support load P of the main frame acts, specifically, the adjusting plate 9.
Should be placed where it is placed. This allows
The material cost can be reduced, and the weight of the supporting device can be reduced.

[0024]

As described above, according to the first embodiment of the present invention, the back plate is fixed to the back surface of the foundation floor to form a gap between the foundation floor and the building beam. The anchor bolts were fixed to the building beam outside the foundation floor, and the fixing plate fixed to the anchor bolt was inserted into the gap and fixed by welding to the foundation floor. It is easy to place anchor bolts avoiding reinforcement arrangements, it is possible to prevent gaps from occurring between the fixing plate and anchor bolts, improve reliability in strength, and improve seismic strength. The required number of anchor bolts can be easily secured, the strength can be easily assured in terms of seismic strength, and the labor for installation work can be reduced.

According to a second aspect of the present invention, there is provided a supporting device for a man conveyor, wherein a plurality of types of fixing pieces having different lengths in a depth direction of insertion into the gap are prepared, and the fixing pieces of a type corresponding to the width of the gap are provided. Is selectively used, so that the arrangement of the anchor bolts can be further facilitated.

According to the third aspect of the present invention, since the fixing piece is welded to the foundation floor with a thin wall, the welding length and the length of the welding leg can be designated, and the strength assurance in terms of seismic strength can be guaranteed. It can be performed more reliably.

In the supporting device for a conveyor according to the fourth aspect of the present invention, since the back plate divided into a plurality of sheets is fixed to the back surface of the base floor, the cost of materials is reduced and the weight of the supporting device as a whole is reduced. be able to.

[Brief description of the drawings]

FIG. 1 is a plan view showing a supporting device for a man conveyor according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view showing a portion II in FIG. 1;

FIG. 3 is a sectional view taken along line III-III in FIG. 1;

FIG. 4 is a perspective view showing the fixing plate of FIG. 1;

FIG. 5 is a perspective view showing a supporting device for a man conveyor according to a second embodiment of the present invention.

FIG. 6 is a side view showing an example of a conventional escalator.

FIG. 7 is a side view showing an example of a conventional escalator support structure.

FIG. 8 is a plan view showing an example of a conventional method of fixing a foundation floor to a building beam.

FIG. 9 is an enlarged plan view showing an IX part of FIG. 8;

FIG. 10 is a plan view showing another example of a conventional method of fixing a foundation floor to a building beam.

FIG. 11 is an enlarged plan view showing an XI part in FIG. 10;

FIG. 12 is a sectional view taken along the line XII-XII in FIG. 11;

[Explanation of symbols]

1 main frame, 7 building beams, 21 and 27 back plate, 22 base floor, 23 anchor bolts, 24 fixing plate, 26 welds.

Claims (4)

[Claims] 1. A flat base floor which is installed on a building beam and receives a main frame of a man conveyor, is fixed to a back surface of the base floor, and creates a gap between the base floor and the building beam. Back plate, a plurality of anchor bolts fixed to the building beam outside the base floor, one end is fixed to the anchor bolt, the other end is inserted into the gap, the base floor A supporting device for a man conveyor, comprising a plurality of fixing plates fixed to each other by welding. 2. A method according to claim 1, wherein a plurality of types of fixing pieces having different lengths in a depth direction of insertion into the gap are provided, and a type of fixing piece corresponding to the width of the gap is selectively used. The supporting device for a man conveyor according to claim 1. 3. The supporting device for a man conveyor according to claim 1, wherein the fixing pieces are welded to the base floor by a thin wall welding. 4. The supporting device for a man conveyor according to claim 1, wherein the back plate divided into a plurality of sheets is fixed to the back surface of the foundation floor.