JPH04371485A - Hadrail guide device for man-conveyer - Google Patents

Abstract

PURPOSE:To reduce the travel loss of the movable handrail of a man-conveyer, and prevent the abrasion of the movable handrail or a movable handrail guide and the slipping-off of the movable handrail. CONSTITUTION:Plural rollers 9, supporting the lower surface of a movable handrail 4 in the return side upper bent part, are journalled along a curve on both the inner part sides of a main frame 1 of an escalator. Bendable guides are continuously inserted in the inside of the movable handrail 4 in the return side upper bent part. The guides are supported adjustably in the vertical direction with a vertical adjustment mechanism.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a handrail guide device for guiding a circulating handrail of a passenger conveyor, and more particularly to a handrail guide for an ultra-high lift escalator or an escalator with a landing where high tension is applied to the moving handrail. It is related to the device.

0002

BACKGROUND OF THE INVENTION The moving handrail of a passenger conveyor such as an escalator has an endless C-shaped cross section, and moves in circulation while being guided by a moving handrail guide based on the operation of a handrail drive device. In order to maintain this, it is necessary to reduce traveling loss, prevent wear of the moving handrail and the moving handrail guide, and prevent the moving handrail from coming off the moving handrail guide.

[0003] Therefore, Japanese Patent Application Laid-Open No. 62-240288, Japanese Patent Publication No. 63-57352, Japanese Utility Model Application No. 58-41776,
In view of the above, Japanese Utility Model Publication No. 49-19253 makes various proposals in order to maintain the function of the moving handrail over a long period of time.

0004

[Problems to be Solved by the Invention] However, the proposals of Japanese Patent Application Laid-open No. 62-240288, Japanese Patent Publication No. 63-57352, and Japanese Utility Model Application Publication No. 58-41776, when used for the curved part of a moving handrail, The moving handrail guide is intermittent,
There was a risk that the moving handrail would come off the moving handrail guide. Furthermore, the proposal in Japanese Utility Model Publication No. 49-19253 has the effect of preventing the movable handrail from coming off the movable handrail guide;
The travel loss at the upper curved part of the moving handrail increases, and
There was a risk that the moving handrail guide at the upper curved section would wear out.

The present invention has been made in view of the above, and provides a passenger conveyor that can reduce running loss of a moving handrail, prevent wear of the moving handrail and the moving handrail guide, and prevent the moving handrail from coming off the moving handrail guide. The purpose of this invention is to provide a handrail guide device.

[0006]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides rotatable rollers that support the lower surface of the return-side curved portion of the moving handrail of the passenger conveyor and are mounted on multiple axes along the curve. The present invention is characterized by comprising: a vertically adjustable guide guide made of a bendable plastic material and continuously fitted into the interior of the return side curved portion of the handrail.

[0007]

[Operation] According to the present invention, the lower surface of the return side curved portion of the moving handrail is supported by a plurality of rollers along a curve, and a vertically adjustable guide guide is provided inside the return side curved portion of the moving handrail. Since the movable handrail is continuously inserted, it is possible to reduce travel loss of the movable handrail, prevent wear of the movable handrail and the movable handrail guide, and prevent the movable handrail from coming off the movable handrail guide.

[0008]

[Embodiment] The present invention will be described in detail based on an embodiment shown in Figs. As shown, there is an upper machine room 1A installed on the upper floor, a lower machine room 1B installed on the lower floor, an upper machine room 1A and a lower machine room 1B.
A sloped part 1C installed at a slope between
C and a landing 1D provided horizontally in the center. A plurality of drive units 2 are installed inside the inclined portion 1C of the main frame 1. Furthermore, a parapet 3 is erected on both sides of the main frame 1, and an endless movable handrail 4 having a horizontal C-shaped cross section is slidably wound around the movable handrail guide of the parapet 3.

Reference numeral 5 denotes a plurality of steps arranged in the longitudinal direction inside the main frame 1, and a drive unit 2 is attached to the front wheel axle of the steps 5.
An endless step link 6 that meshes with the sprocket is connected.

Reference numeral 7 designates a plurality of handrail drive devices disposed on both sides of the interior of the main frame 1. This handrail drive device 7 includes a plurality of upper rollers 70 that are pressed against the upper surface of the return side of the movable handrail 4, and A plurality of lower rollers 71 are pressed against the lower surface of the return side of
It has a function of circulating the handrail 4 at the same speed and in the same direction as the steps 5 (in the upward direction of the arrow).

Reference numeral 8 denotes a mounting plate having an inverted L-shaped cross section that is attached to both sides of the interior of the main frame 1. As shown in FIG. The rollers 9 are located on the upper curved portion of the return path side, and a plurality of rollers 9 are supported via shafts on the side surfaces thereof so as to follow the curve. The circumferential surfaces of the plurality of rollers 9 are made of phenolic resin, and rotatably support the lower surface (surface) of the return side upper curved portion of the moving handrail 4 from below (see FIG. 2).

Further, a vertical adjustment mechanism 10 made of bolts and nuts is inserted into the upper part of the mounting plate 8 so as to be adjustable in the vertical direction, and a plate-shaped guide 11 is installed at the lower part of the vertical adjustment mechanism 10. It is mounted horizontally. This guide 1
As shown in FIG. 2, 1 is made of nylon or the like so that it can be bent, and is continuously fitted into the interior of the upper curved portion on the return side of the moving handrail 4 via a clearance shown by an arrow.

According to the above structure, it is possible to inexpensively prevent the moving handrail 4 of an escalator with a landing or an ultra-high escalator in which a high tension is applied to the moving handrail 4 from easily coming off from the guide guide 11. In addition, guide 11
Since the movable handrail 4 on the return side is guided through the clearance, it is possible to prevent the guide guide 11 from being worn out. Moreover, the travel loss of the movable handrail 4 at the upper curved portion on the return side can be significantly reduced.

In particular, as shown in FIG. 1, large tensions T1 and T2 act on the moving handrail 4 at the upper curved portion on the return side, causing a large running loss, but according to the present invention Compared to the idea in the publication, the running loss is reduced by 1/
It can be reduced to 3.

Specifically, in FIG.
In the case of the invention of Publication No. 253.

[Formula 1], R (travel loss) = T2 - T1 = 0.14T1
becomes. Here, μ=wear resistance θ=angle formed by T1 and T2. On the other hand, according to the present invention,

[Formula 2], R (travel loss) = T2 - T1 = 0.05T1
Therefore, it is possible to reliably reduce the traveling loss of the movable handrail 4 at the upper curved portion on the return side to ⅓.

[0016]

As described above, according to the present invention, there is provided a rotatable roller that supports the lower surface of the return side curved portion of the moving handrail of a passenger conveyor and is mounted on multiple axes along the curve, and a bendable plastic roller. Since it is equipped with a vertically adjustable guide that is made of wood and is continuously fitted into the inside of the return side curved part of the moving handrail, it is possible to reliably reduce travel loss of the moving handrail, and It is possible to prevent wear on moving handrails and guides, and
This has the effect of inexpensively preventing the movable handrail from coming off the guide. Furthermore, by utilizing the vertical adjustment mechanism, there is an effect that maintenance and inspection work etc. can be made easier.

[Brief explanation of drawings]

FIG. 1 is an overall explanatory diagram showing an embodiment of a handrail guide device for a passenger conveyor according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG. 1;

FIG. 3 is a perspective view of essential parts showing an embodiment of a handrail guide device for a passenger conveyor according to the present invention.

[Explanation of symbols]

1 Main frame 4. Movable handrail 8 Mounting plate 9 Roller 10 Vertical adjustment mechanism 11 Information guide

Claims (1)

[Claims] Claim 1: A rotatable roller that supports the lower surface of the return side curve of the moving handrail of a passenger conveyor and is mounted on multiple axes along the curve, and a bendable plastic material. 1. A handrail guide device for a passenger conveyor, comprising a vertically adjustable guide guide that is continuously fitted into the interior of the passenger conveyor.