JPH02123095A - Safety device for passenger conveyer - Google Patents

Abstract

PURPOSE:To improve the safety of passengers without any sacrifice of design and mis-operation by detecting only the load in the vertical direction applied to a handrail when a passenger hangs out of the handrail. CONSTITUTION:At the clearance between the top of a convex and the bottom of a concave in an upper guide 4a provided with the convex in the center of the lower guide 4 below a triangle guard plate 8 and a lower guide 4b provided with a concave at the opposing position to a convex is arranged a band type detector, namely, a table switch S. Fitting a convex 4X to the concave 4Y in the upper and lower guides makes the upper guide 4a difficult to rotate even if rotational force in A direction is given, thus causing the switch to make no mis-operation. When a passenger hangs out of a handrail 6, an upper guide 4a deflects downwards by the component P' of the load P in the vertical direction applied to the handrail 6 to make a tape switch S come into action. This action actuates an alarm device to call his attention and makes control such as the operation of a controller for stopping traveling a passengers' conveyer.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to passenger conveyors such as escalators and electric roads, and particularly to safety devices around handrails.

[Conventional technology]

Passenger conveyors are widely used in department stores, shopping centers, etc., and with the diversification of the user base, a structure with higher safety has been desired.

As part of such measures to improve safety, a triangular guard plate as shown in FIG. 3 may be installed.

The passenger conveyor is stationary as shown in Figure 3.
．． The escalator is composed of an inner deck 2, an outer deck 3, and a handrail 6 that runs at the same speed as the step 5 guided by the guide body 4 on the upper part of the handrail 1. A triangular guard plate 8 is attached to the narrow corner formed between the floor 7 and the floor 7 as a protector.

This triangular guard plate 8 is based on the escalator safety standards (JE) of JEAS (Japan Elevator Association Standard System).
The structure recommended in AS-406B) is common, and when a passenger leans out from the handrail 6 and looks outside, the lower surface of the floor 7 and the passenger's head etc. collide. This is to prevent

Regarding this triangular part guard plate 8, as a method of reinforcing its effect, the Utility Model No. 61-1 was equipped with a human body detection device.
These include No. 160178 ``Escalator Safety Device'' and Utility Model Application Publication No. 176185 (1985) ``Escalator Safety Device'' equipped with a caution sign.

[Problems to be Solved by the Invention 2] However, the above-mentioned prior art has the following problems.

In other words, even if the passenger conveyor is equipped with the triangular guard plate 8, when the passenger leans over the handrail 6 and is engrossed in the view outside, his or her head may touch the triangular guard plate 8. Pushing it outward, he continued to lean forward, and finally collided with the bottom surface of plate 7.

In addition, the three aforementioned utility models that take into consideration the conditions in which such accidents occur may have a foreign body feel from the design point of view, as they are used as one of the functions of passenger conveyors in department stores and shopping centers. I can't say that.

Therefore, the present inventor first divided the guide body 4 into two upper and lower guide bodies as shown in FIG. We have proposed a configuration, but in such a configuration, while running while holding on to the handrail 6, even if a slight rotational force is applied in the direction of entry by the gripped hand, the band-shaped detector S will be activated and an alarm will be issued. A problem was discovered, such as the product emitting .

In view of these current circumstances, an object of the present invention is to improve the safety of passengers using a passenger conveyor without impairing its design or causing malfunction.

[Means to solve the problem]

The second object is achieved by detecting only the vertical load applied to the handrail 6 when a passenger leans out of the handrail 6, and operating the safety device.

[Effect]

The structure for detecting that a vertical load is applied to the handrail 6 includes a convex portion on one side of the guide body 4 of the handrail 6;
A tape switch that is divided into two guide bodies (upper and lower) with a concave portion on the other side, and is used for 4iF-shaped black detection, i.e., passenger detection of automatic doors, between the top of the convex portion and the bottom of the concave portion. to be placed.

A guide body with a built-in tape switch like this is installed at least below the triangular guard plate 8 to absorb the vertical load applied to the handrail 6 when a passenger leans outside the handrail 6. The above-mentioned tape switch detects this, and thereby performs controls such as operating an alarm device to draw the attention of passengers or stopping the passenger conveyor from running.

Therefore, the passenger does not run into the underside of the floor 7, and the tape switch is built into the guide body of the handrail 6, so that it does not affect the outside of the passenger conveyor and malfunctions when the passenger gets on the conveyor. Since it can be detected without any noise, the design of the single-passenger conveyor will not be degraded.

〔Example〕

An embodiment of the present invention will now be described with reference to FIGS. 1 and 2.

In FIG. 1, the configuration of the passenger conveyor indicated by the same reference numerals as in FIG. An upper guide body 4a having a convex portion in the center, a lower guide body 4b having a concave portion opposite to the convex portion of the upper guide body 4a, and the top of the convex portion and the bottom of the concave portion of the upper and lower guide bodies. It is characterized in that it is composed of a tape switch S arranged in a gap.

Of course, the convex portions and concave portions of the upper and lower guide bodies are configured to fit into the A and O portions with a small gap. Therefore, even if a rotational force is applied in the input direction as shown in Fig. 4, the convex and concave portions of the upper and lower guides are Since they are fitted, the upper guide body 4a has a structure that makes it difficult to rotate, and the tape switch S will not malfunction.

Therefore, as shown in FIG. 2, the upper guide body 4a is deflected downward by the component force P' of the vertical load P applied to the handrail 6 when the passenger is leaning out from the handrail 6 into the row. Tape switch S is activated. The operation of the tape switch S performs controls such as operating an alarm device (not shown) to draw the attention of passengers, or operating a control device to stop the passenger conveyor from running.

According to such a configuration, since the device for detecting when a passenger steps outward from the handrail 6 is built into the guide body 4 of the handrail 6, the design of the single-passenger conveyor is not impaired, and the detection device for detecting when a passenger steps outward from the handrail 6 is built into the guide body 4 of the handrail 6. Even when a handrail 6 is applied with a rotational force, it does not malfunction, and the safety of passengers on the passenger conveyor can be improved.

Of course, the guide body 4 according to the present invention may be installed not only below the triangular guard plate 8 but also in the running section area of the handrail 6. According to this, for example, when children or the like get on and off the passenger conveyor, the guide body 4 may be attached to the handrail 6. You can also warn them about activities such as climbing on top of them or playing with them.

〔Effect of the invention〕

As explained above, according to the present invention, the design of the single-passenger conveyor is not impaired, and the rotational force applied to the handrail while the passenger is holding on to the handrail does not cause malfunction. This has the effect of preventing collisions with objects outside the handrail and improving the safety of passengers.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a handrail portion of a passenger conveyor showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line I-1 in Fig. 1, and Fig. 3 is a perspective view of the passenger conveyor near the triangular guard plate. 4 are sectional views of the handrail portion of the passenger conveyor, and FIGS. 3 and 4 show the conventional structure. 1... Balustrade, 2... Inner deck, 3... Outer deck,
4... Guide body, 4a... Upper guide body, 4b... Lower guide body, S. Tape switch, 6... Handrail. Condolences! Diagram not shown

Claims (1)

[Claims] (1) Between a passenger conveyor consisting of an endless step, a handrail that runs in synchronization with the step, a guide body that guides the handrail, and an object located near the passenger conveyor. In the passenger conveyor, the guide body located below the narrow corner has a convex portion on one side and a recess on the other side. A band-shaped detector is arranged in the gap between the top of the convex part and the bottom of the concave part to detect narrowing of the gap. A safety device for a passenger conveyor, characterized in that it issues an alarm or stops operation when a detection object is activated.