JP2010064834A - Safety device for escalator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety device for an escalator avoiding a serious accident by forcibly putting back a passenger body inside a handrail even if the passenger leans boldly out of the handrail, in the safety device arranged at a triangular part which is an intersecting part of an up escalator and a building ceiling or a beam section or an intersecting part of the up escalator and a down escalator. <P>SOLUTION: The safety device 5, composed of a guide plate 6 shaped to gradually guide upward from downward relative to the upper face of a moving handrail 3, and of a guide plate 8 shaped to gradually guide toward the surface of a perpendicular wall 7 from the outside of the perpendicular wall 7 of the down escalator lower face on the outside of the moving handrail 3. Consequently, even if leaning boldly to the outside of the moving handrail 3 of the escalator, the body can be forcibly retreated from the dangerous triangular part by the guide plates 6, 7. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

      The present invention relates to a safety device arranged at a triangular portion that is a portion where an ascending escalator and a building ceiling or a beam portion intersect, or a portion where an ascending escalator and a descending escalator intersect.

In the escalator that connects the upper and lower floors of the building, in order to prevent accidents due to the user being caught, the triangular part that is the part where the ascending escalator and the building ceiling or beam intersect, or the part where the ascending escalator and descending escalator intersect It is obliged to install a protective plate called a triangular guard plate in the Ministry of Construction's Sumitomo No. 25 in 1977.

The conventional protective plate is made of acrylic resin and has a substantially triangular shape, and is installed so that accidents will not occur even if the passenger's body or head protrudes from the handrail of the ascending escalator Yes.

However, since the conventional protective plate cannot completely prevent an accident, various proposals have been made.
There is a proposal to stop the escalator or alert the passenger when the sensor detects that the passenger's body or head is protruding from the handrail by placing a sensor outside the protective plate or handrail. ing.

Alternatively, there are proposals such as increasing the strength by making the material of the protective plate made of polycarbonate, or increasing the strength by changing the structure of the protective plate.
JP-A-10-297865 JP 2006-049442 A JP 2002-114474 A JP2008-133304

First, when detecting the danger with the sensor and stopping the operation of the escalator, there is a problem that other passengers may fall down due to the sudden stop. In addition, there is a risk that the sensor operates frequently, and smooth operation is hindered. Furthermore, if only alerting is performed after detection by a sensor, this is insufficient to prevent accidents.
Next, it is a proposal to increase the strength of the protection plate to prevent accidents, but if the current protection plate shape, the escalator will be bounced back to the protection plate when the passenger gets out of the handrail. The body or head may fall between the protective plate and the handrail, resulting in a serious accident.

    In particular, the accident of an elementary school student that occurred the other day was a painful accident in which money was dropped out of the handrail and it was caught up in the triangle because it was leaning over to pick it up. Such child accidents are thought to have occurred in various places, but cannot be prevented by alerting by sensor detection or improving the strength of the protective plate.

    Therefore, the present invention has been made to solve the above-described problem, and even if a passenger leans out of the handrail greatly, the safety device for an escalator that can forcibly return the body to the inside of the handrail and avoid a serious accident. The purpose is to provide.

    A safety device according to the present invention is arranged at a triangular portion where an ascending escalator and a building ceiling or a beam portion intersect, or a portion where an ascending escalator and a descending escalator intersect. A guide plate having a shape that sequentially guides from the lower handrail surface to the upper handrail surface on the outer side, and a guide plate that has a shape that sequentially guides from the outside of the vertical wall of the building ceiling, beam, or down escalator to the vertical wall surface. It is characterized by.

    According to the safety device of the present invention, even if the body or head protrudes outside the handrail of the ascending escalator, it can be forcibly retreated from the dangerous triangle by the guide plate, preventing a serious accident. can do.

    Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.

An escalator in which a safety device to which the present invention is applied is installed will be described. As shown in FIG. 1, the ascending escalator 1 is installed in a building having upper and lower floors and is inclined to the upper and lower floors, and includes a moving step 2 and a moving handrail 3 for carrying passengers.
A place where the ascending escalator 1 and the descending escalator 4 intersect is called a dangerous triangular part, and the safety device 5 according to the present invention is installed in this part.
This triangular portion is generated not only between the ascending escalator 1 and the descending escalator 4, but also between the ascending escalator and the building ceiling or beam portion.

A specific example of the safety device 5 to which the present invention is applied is shown in FIG. The safety device 5 shown in FIG. 2 includes a guide plate 6 having a shape that gradually guides the upper surface of the moving handrail 3 from the lower side and the vertical wall 7 on the lower surface of the descending escalator on the outer side of the moving handrail 3. The guide plate 8 is configured to gradually guide from the outside to the surface of the vertical wall 7.
The safety device 5 may be made of a transparent resin material such as acrylic resin or polycarbonate, or may be made of a colored resin. Moreover, a metal plate with metallic luster may be used, or a metal plate with surface fluorine coating having durability and a low friction coefficient may be used. It can be wooden or any material that has strength.

    Further, as shown in FIG. 3, the guide plates 6 and 8 may not be curved but be bent.

By installing the safety device 5 having the above-described shape, the body can be forcibly retracted from the dangerous triangular portion by the guide plates 6 and 8 even when the escalator's moving handrail 3 is largely outside. Can prevent serious accidents.
The guide plates 6 and 8 may be made of the same material or different materials, but it is desirable that they are smoothly joined and integrated.

Schematic diagram showing the overall configuration of the escalator The principal part expansion perspective view which shows an example of the safety device to which this invention is applied An enlarged perspective view of another embodiment of the safety device of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ascending escalator 2 Moving step 3 Moving handrail 4 Descending escalator 5 Safety device 6 Guide plate 7 Downward escalator bottom vertical wall 8 Guide plate

Claims (1)

Handrails from the bottom of the handrail surface outside the handrail of the ascending escalator in the safety device arranged in the triangular part where the ascending escalator and the building ceiling or beam intersect, or the ascending escalator and descending escalator intersect A safety device comprising: a guide plate having a shape that gradually guides to an upper portion of the surface; and a guide plate having a shape that gradually guides from the outside of the vertical wall of the building ceiling, the beam portion, or the lower surface of the descending escalator to the vertical wall surface. .