JP2001199663A - Passenger conveyer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve earthquake resistance between a structure and a passenger conveyer, and reduce an installation work cost. SOLUTION: In this conveyer, an upper side end part 7a of a body frame 7 is fixed to the building structure 8 by weld-joining or the like and supported by the structure 8, while a lower horizontal part 7b of the body frame 7 is provided with rotation bodies 11. By rotational movement of the rotation bodies 11 on a pit bottom face 10A, the lower horizontal part 7b can follow earthquake motion or the like of the body frame 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger conveyor for carrying a person thereon, and more particularly to an escalator installed on an architectural structure or a civil engineering structure (hereinafter referred to as a "structure" unless otherwise specified). It relates to passenger conveyors such as moving sidewalks.

[0002]

2. Description of the Related Art As a conventional passenger conveyor, for example, one disclosed in Japanese Patent Application Laid-Open No. 61-75483 is known.

[0003]

In the above-mentioned prior art, it is possible to prevent the receiving frames formed at both ends of the main frame from coming off the support on the structure side to some extent when an earthquake occurs. There was no idea to quickly return the passenger conveyor to its original state after that.

[0004] It is an object of the present invention to provide a passenger conveyor that can be quickly restored after an earthquake even if the structure and the passenger conveyor are displaced during an earthquake.

[0005]

In order to achieve the above object, the present invention is to fix the upper side of the main body frame of the passenger conveyor to one of the structures separated from each other and to connect the lower side of the main body frame to the other of the structures. They were supported so that they could move relative to each other.

According to the above configuration, the lower side of the main body frame is supported so as to be relatively movable with respect to the other side of the structure.
Large displacement between structures separated by a large earthquake, for example, when one is on the upper floor and the other is on the lower floor, even if an interlayer displacement angle occurs, a large compressive force or tensile force is applied in the longitudinal direction of the main frame. No force is applied, so that the body frame is not deformed by compression or broken by tension.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a passenger conveyor according to the present invention will be described below with reference to FIGS.

An escalator 1 which is a kind of a passenger conveyor has a lower floor 2 which serves as a gate on one side and is connected to a lower floor F1 and a lower floor F3 which serves as a gate on the other side along, for example, a stair F2. A plurality of treads 4 which are connected endlessly to a series of upper getting on and off floors 3 (movable sidewalks are referred to as treads); a handrail 5 which moves synchronously with the treads 4; A balustrade 6 (standing on both sides of the steps 4) forming a running path, and a body frame 7 for supporting structural components such as the steps 4, the handrails 5 and the balustrade 6 are provided, and this is an upper floor F3. Between the building structure 8 and the civil engineering building 9 on the lower floor F1.

The upper end 7a of the main body frame 7 is fixed to and supported by the building structure 8 so that it cannot be moved and cannot be removed by welding or the like. The main body frame 7 is housed in a pit 10 whose lower side is constructed in a U-shaped groove shape in the civil engineering structure 9, and the lower horizontal portion 7 b of the main body frame 7 is rotated with a low friction member with respect to the pit 10. It is supported so as to be relatively movable via the body 11. That is, a rotational displacement of the plurality of rotating bodies 11 fixed to the main body frame 7 follows a positional deviation from the pit bottom surface 10A due to the longitudinal movement of the main body frame 7 (due to occurrence of an interlayer displacement angle such as an earthquake motion). It is supported as much as possible. A gap g having a size corresponding to the amount of movement of the rotating body 11 due to the rotation (corresponding to the maximum value of movement due to the interlayer displacement angle) is formed between the main body frame 7 and the civil engineering structure 9.

The lower horizontal portion 7b of the main body frame 7 has a support 11A constituting the rotating body 11 and a support 11A.
A is a rotating roller 11C supported by a pin 11B on a bolt A
11D, the pit bottom surface 10 is fixedly provided on the main body frame 7 through the rotating body 11,
It is configured to be movably supported on a support base 10B on A.

The main body frame 7 is formed by the rotating body 11.
The main body frame 7 caused by the seismic motion and the like (movement in the longitudinal direction with respect to the pit 10 shown in FIG. Alternatively, even if a large interlayer displacement angle occurs between the upper side and the lower side of the civil engineering structure 9, a large compressive or tensile force does not act on the longitudinal direction of the main body frame 7, and the main body frame 7 is compressed and deformed. It does not break in tension, and the overall earthquake resistance is improved. Therefore, it can be restored promptly after the earthquake.

Next, the rotating body 11 is not limited to the object of the above-described embodiment, and is also used for installation work as described below.

FIG. 3 shows the lower half of the escalator 1 before being installed on the civil engineering structure 9. The rotating body 11 is attached to the lower body frame 7 in FIG. 2, and is transported on the lower floor F1 during the installation work in the state of FIG. Then, as shown in FIG. 3, a structure for storing and installing the assembled unit products such as the main body frame 7 in the pit 10 after being transported is intended to improve the efficiency of the transporting work and to be one factor in reducing the installation work cost. It is.

On the other hand, an example in which the concept of FIG. 3 described above is applied to only about half of the upper side of the escalator 1 is shown in FIG. Also in this case, similarly to the lower half (FIG. 3), the rotator 11 fixedly provided on the main body frame 7 is used to transport the upper tier F3, and then the rotator 11 is removed. It is installed in the state of FIG.

According to the embodiment described above, while the escalator 1 is improved in the earthquake resistance, it can also contribute to a reduction in installation work costs. In the above embodiment, the case where the present invention is applied to the escalator 1 has been described. However, the present invention is not limited to this, and it is needless to say that the present invention can be applied to other passenger conveyors such as moving sidewalks.

[0016]

As described above, according to the present invention, a passenger conveyor which can be quickly restored after an earthquake and has excellent earthquake resistance can be obtained.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a passenger conveyor of the present invention.

FIG. 2 is a sectional view taken along the line II of FIG. 1;

FIG. 3 is a bottom side view corresponding to an enlarged view of a main part of FIG. 1;

FIG. 4 is an upper side view corresponding to an enlarged view of a main part of FIG. 1;

[Explanation of symbols]

1 ... escalator, 2, 3 ... getting on and off floor, 7 ... body frame, 7
a: upper end, 7b: lower horizontal part, 8: building structure, 9
... civil engineering structure, 11 ... rotating body, 11C ... rotating roller.

Continuing from the front page (72) Inventor Kazuhei Kojima 1070 Ma, Hitachinaka-shi, Ibaraki Pref.Hitachi, Ltd.Hitachi Ltd. F term (reference) 3F321 AA04 AA08 CD20 GA37

Claims (3)

[Claims] 1. A step which is connected and moved endlessly between one floor and the other floor, a handrail which moves in synchronism with the step, and a balustrade forming a travel path of the handrail. A passenger conveyor having a main body frame that is installed over a structure that supports and separates them, wherein the upper side of the main body frame is fixedly supported on one of the structures, and the lower side of the main body frame is the structure. A passenger conveyor characterized by being supported on the other side of the body via a low friction member. 2. The passenger conveyor according to claim 1, wherein said low friction member is a rotating body supported by said main body frame. 3. The passenger conveyor according to claim 1, wherein the low-friction member is a transport tool provided for transporting the main body frame.