WO2019167190A1

WO2019167190A1 - Passenger conveyor

Info

Publication number: WO2019167190A1
Application number: PCT/JP2018/007627
Authority: WO
Inventors: 真吾土居
Original assignee: 三菱電機株式会社
Priority date: 2018-02-28
Filing date: 2018-02-28
Publication date: 2019-09-06

Abstract

Provided is a passenger conveyor that can, with a simple configuration, suppress the displacement of a step in the lateral direction. This passenger conveyor includes: a pair of rails (3) provided along the advancing direction of a step (2) and on the left and right sides thereof; and a pair of drive rollers (8) that support the step (2) via a shaft and that move along the top surface of the rails (3). The top surface of the rails (3) is inclined, in the lateral direction, downward towards the center of the step (2), thereby suppressing displacement of the step (2) in the lateral direction.

Description

Passenger conveyor

This invention relates to a passenger conveyor.

Skirt guards are provided on the left and right sides of the passenger conveyor steps to prevent contact between passengers and passenger conveyor internal equipment. When the step is displaced in the left-right direction and contacts the skirt guard, a sliding noise can be generated. As a passenger conveyor which can suppress the displacement of the step in the left-right direction, for example, there is one described in Patent Document 1 below.

Japanese Unexamined Patent Publication No. 11-335051

The passenger conveyor described in Patent Document 1 includes a center rail and a guide body in addition to the rail for guiding the steps. For this reason, the configuration of the passenger conveyor is complicated.

This invention has been made to solve the above-mentioned problems. The object is to provide a passenger conveyor that can suppress the lateral displacement of the steps with a simple configuration.

The passenger conveyor according to the present invention includes a pair of rails provided on the left and right sides along the traveling direction of the step, and a pair of drive rollers that support the step through a shaft and travel on the upper surface of the rail, The rail has an upper surface inclined so as to become lower toward the center of the step in the left-right direction.

According to the present invention, the upper surface of the rail is inclined so as to become lower toward the center side of the step in the left-right direction. For this reason, the horizontal displacement of the step can be suppressed with a simple configuration.

It is a side view which shows the structure of an escalator. 2 is an enlarged cross-sectional view of a main part of the escalator in Embodiment 1. FIG. FIG. 3 is a cross-sectional view of a drive roller and a mold in the first embodiment.

Hereinafter, embodiments will be described with reference to the accompanying drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.

In the embodiment, an escalator will be specifically described as an example of a passenger conveyor. Description of other passenger conveyors such as moving walkways is omitted.

Embodiment 1 FIG.
FIG. 1 is a side view showing the structure of the escalator.

As shown in FIG. 1, the escalator includes a truss 1 and a plurality of steps 2. The truss 1 is spanned between the upper floor and the lower floor. The plurality of steps 2 are connected by an endless step chain, for example. Inside the truss 1, a pair of rails 3 that guide the steps 2 are provided. The pair of rails 3 are disposed on the left and right sides of the step 2 along the traveling direction of the step 2. The step 2 circulates between the upper floor and the lower floor as a driving device (not shown) operates.

FIG. 2 is an enlarged cross-sectional view of the main part of the escalator in the first embodiment.

FIG. 2 schematically shows a cross section of the escalator viewed from the direction of travel of the step 2.

As shown in FIG. 2, skirt guards 4 are provided on the left and right of the step 2. The step 2 includes a pair of brackets 5, a step board 6, and a pair of guide pads 7. The tread board 6 is supported from below by the bracket 5.

The guide pad 7 is provided, for example, at the tip of a branch member that protrudes from the bracket 5 in the left-right direction. The guide pad 7 faces the skirt guard 4. The guide pad 7 is located closer to the skirt guard 4 than the end of the tread plate 6 in the left-right direction.

The guide pad 7 is provided to prevent the tread board 6 and the skirt guard 4 from coming into direct contact. The guide pad 7 contacts the skirt guard 4 when the step 2 is displaced in the left-right direction. The guide pad 7 worn by sliding with the skirt guard 4 is replaced.

The escalator includes a pair of drive rollers 8. The drive roller 8 supports the step 2 via an axis extending in the left-right direction. The drive roller 8 is supported by the rail 3. The drive roller 8 travels on the upper surface of the rail 3. The width of the upper surface of the rail 3 is larger than the width of the rolling surface 8 a of the driving roller 8. The drive roller 8 has, for example, a bearing not shown in FIG.

Of the pair of rails 3 as viewed from the direction of travel of the step 2, the upper surface of the left rail 3 is inclined so as to become lower toward the right side. Of the pair of rails 3 as viewed from the traveling direction of the step 2, the upper surface of the right rail 3 is inclined so as to become lower toward the left side. That is, the upper surface of the rail 3 is inclined so as to become lower toward the center side of the step 2 in the left-right direction.

The inclination angle of the upper surface of the right rail 3 is, for example, the same as the inclination angle of the upper surface of the left rail 3. In this case, a member having the same shape as that of the left rail 3 can be used as the right rail 3.

Of the pair of drive rollers 8 as viewed from the traveling direction of the step 2, the left drive roller 8 is formed in a shape whose diameter increases toward the right side. Of the pair of drive rollers 8 as viewed from the traveling direction of the step 2, the right drive roller 8 is formed in a shape whose diameter increases toward the left side. That is, the rolling surface 8a of the driving roller 8 is inclined so that the diameter increases toward the center side of the step 2 in the left-right direction.

The inclination angle of the rolling surface 8a of the right drive roller 8 is, for example, the same as the inclination angle of the rolling surface 8a of the left drive roller 8. In this case, a member having the same shape as that of the left driving roller 8 can be used as the right driving roller 8.

The rolling surface 8a of the driving roller 8 is inclined at an angle corresponding to the inclination of the upper surface of the rail 3 on which the driving roller 8 travels, for example. In this case, the driving roller 8 travels while the entire lower end of the rolling surface 8 a viewed from the traveling direction of the step 2 is in contact with the upper surface of the rail 3.

The drive roller 8 is made of a material such as synthetic resin by injection molding, for example.

FIG. 3 is a cross-sectional view of the drive roller and the mold in the first embodiment. FIG. 3 shows a bearing 8 b in the drive roller 8.

When the drive roller 8 is made by injection molding, for example, two molds such as a mold 9 and a mold 10 shown in FIG. 3 are used. In this case, a draft for taking out the driving roller 8 from the mold 9 remains on the rolling surface 8a. This draft is used as it is, for example, as the inclination of the rolling surface 8a. In this case, the inclination of the upper surface of the rail 3 is set to an angle corresponding to this draft.

According to the first embodiment, the pair of rails 3 are provided inside the truss 1 and are provided on the left and right sides along the traveling direction of the step 2. The pair of drive rollers 8 support the step 2 via a shaft and travel on the upper surfaces of the pair of rails 3. The upper surfaces of the pair of rails 3 are inclined so as to become lower toward the center side of the step 2 in the left-right direction. For this reason, the horizontal displacement of the step 2 can be suppressed with a simple configuration.

If the lateral displacement of the step 2 is suppressed, the contact frequency between the guide pad 7 and the skirt guard 4 decreases. As a result, sliding noise can be suppressed and the replacement frequency of the guide pad 7 can be reduced.

According to the first embodiment, the rolling surface 8a is inclined so that the diameter of the pair of driving rollers 8 increases toward the center side of the step 2 in the left-right direction. For this reason, the horizontal displacement of the step 2 can be more stably suppressed with a simple configuration.

According to the first embodiment, the inclination of the rolling surface 8a of the drive roller 8 is, for example, a draft applied when the drive roller 8 is injection molded. The inclination of the upper surface of the rail 3 is set to an angle corresponding to the draft angle, for example. In this case, it is not necessary to cut the rolling surface 8a of the drive roller 8 so as to be parallel to the bearing 8b.

The present invention can be used for a passenger conveyor that suppresses the lateral displacement of the step.

DESCRIPTION OF SYMBOLS 1 Truss 2 Step 3 Rail 4 Skirt guard 5 Bracket 6 Tread 7 Guide pad 8 Driving roller 8a Rolling surface 8b Bearing 9 Mold 10 Mold

Claims

A pair of rails provided on the left and right sides along the direction of travel of the steps;
A pair of drive rollers that support the step via a shaft and run on the top surface of the rail;
With
The rail is a passenger conveyor whose upper surface is inclined so as to become lower toward the center side of the step in the left-right direction.
2. The passenger conveyor according to claim 1, wherein a rolling surface of the driving roller is inclined so that a diameter thereof increases toward a center side of the step in the left-right direction.
3. The passenger conveyor according to claim 2, wherein the inclination of the rolling surface of the drive roller is a draft applied when the drive roller is molded.