JPH02231391A - Passenger conveyer - Google Patents

Abstract

PURPOSE:To eliminate a trouble of stopping or the like caused by an increase of coefficient of friction due to water in the internal surface of a moving handrail by providing in a truss a drier device actuated by an output signal of a sensor detecting water or a temperature of air in the internal surface of the moving handrail dried. CONSTITUTION:Water in the internal surface of a moving handrail 7 and a temperature of air in a truss are detected by a sensor 15 outputting a signal with a detected value reaching a preset value. By this signal, a suitable means is used actuating a drier device 16 drying the internal surface of the moving handrail 7. Accordingly, by properly setting the preset value outputting the signal of the sensor 15, the drier device 16 can prevent an increase of the coefficient of friction due to water in the internal surface of the moving handrail 7, while by setting up in the truss the drier device 16, it can be easily driven and stopped further properly controlled in accordance with a condition of water in the internal surface of the moving handrail 7.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to passenger conveyors such as escalators and moving passages.

[Conventional technology]

Figures 2 and 3 are schematic side sectional views of a conventional escalator based on the one shown in Japanese Utility Model Application Publication No. 58-144572, and Figure 3 is a cross-sectional view of the handrail and handrail shown in Figure 2. . In FIG. 2, 1 is a truss, 2 is an endless step chain provided inside the truss 1, and step wA2 is a truss 1.
The upper and lower gears 3a and 3b provided therein are turned on. 4 (a large number of steps connected to the step w42; 5 is a drive machine provided in the truss 1; the upper chain gear 3a is rotated by the drive of the drive machine 5, and the step 4 is connected to the step w42; In addition, 6 is a pair of left and right handrails arranged on both sides of the steps 4 on the truss 1, and 7 is a pair of left and right handrails that are supported by the handrail 6, respectively. This is a pair of guided moving handrails on the left and right.The moving handrails 7 are mainly made of rubber, and are moved upward or downward in synchronization with the steps 3 by the drive of a handrail drive device 8 driven by the drive unit 5. A concave portion 7a for compensating the mechanical length of the handrail that curves downward is formed at the lower part of the return path of the moving handrail 7.In addition, in FIG. The inner plate 10 is fixed to the upper end of the inner 6FI plate 9 and is a handrail guide, and the handrail guide 10 is slidably engaged with the movable handrail 7 to guide the movable handrail 7. Reference numerals 11 and 12 are inner and outer decks arranged on both sides of the lower end of the parapet 6, and packings 13 and 13 are interposed between these decks 11 and the inner board 9. Reference numeral 14 indicates rainwater, etc. In addition, as shown in Japanese Utility Model Application Publication No. 59-173674,
There was also an escalator in which a waterproof cover was fixed to the lower part of the inner panel, and this protective cover covered the return path of the handrail, in which the groove of the handrail, which had a substantially C-shaped cross section, opened upward.

[Problem to be solved by the invention]

Conventional passenger conveyors such as Escalake are constructed as described above, so water 14 can leak due to rain, passengers spilling juice, etc., or water splashing during cleaning. When it hits the inner plate 9 and flows down, it drips into the return path of the movable handrail 7 from the lower ends thereof, and the movable handrail 7 may get wet. And moving handrail 7
is frictionally driven by the drive roller of the handrail drive device 8,
It is traveling along the handrail guide 10 while slidingly contacting the handrail guide IO. For this reason, when the moving handrail 7 is wet as described above, the coefficient of friction increases and the frictional resistance between the inner rotation of the moving handrail 7 and the handrail guide 10 increases, exceeding the driving force by the drive roller and moving the handrail. The handrail stops moving. In addition, if the handrail is stuck, the passenger conveyor should be stopped and the inside surface of the handrail should be dried by a worker using a hair dryer, but this process requires a lot of effort and requires a long time to operate the passenger conveyor. Since the operation will stop,
There was a problem that it caused inconvenience to passengers. In addition, as shown in Japanese Utility Model Application No. 59-173674, it is possible to interpose a waterproof cover between the inner panel of the handrail and the return section of the handrail to prevent water from entering the inner surface of the handrail. However, even with this method, it is difficult to prevent water from entering the inner surface of the handrail. This invention was made to solve the above-mentioned problems, and by automatically detecting that the inner surface of the moving handrail has become wet and drying it, it can eliminate the problem caused by the increase in the coefficient of friction of the moving handrail due to moisture. The purpose of the present invention is to provide a passenger conveyor that can easily and reliably eliminate problems such as stoppages.

[Means to solve the problem]

The passenger conveyor according to the present invention is provided with a sensor for detecting moisture on the inner surface of the moving handrail or humidity of the air, and a drying device for drying the inner surface of the moving handrail, which is operated by an output signal from the sensor. be.

[Effect]

The passenger conveyor according to the present invention detects the moisture on the inner surface of the handrail or the humidity in the air inside the truss, outputs a signal in which the detected value reaches a set value, and uses an appropriate means according to this signal. By operating the drying device, the inner surface of the moving handrail is dried.Therefore, by setting the setting value for outputting the signal of the above-mentioned sensor to be appropriate, the drying device can prevent the increase in the coefficient of friction due to moisture on the inner surface of the moving handrail. This can be prevented, and since the drying device is installed inside the truss, it is easy to drive and stop the drying device, and it can be controlled appropriately depending on the moisture situation on the inner surface of the moving handrail.

【Example】

An embodiment of the present invention will be described below with reference to FIG. In FIG. 1, the same reference numerals as in FIGS. 2 and 3 indicate the same or corresponding parts, 15 is a moisture detection sensor, and 16 is a drying device. The sensor 15 has a main body 15a fixed to the lower part of the escalator notruss, and a detecting part 15b protruding downward from the main body 15a passes through the elongated length 17a at the lower part of the handrail guide plate 17 provided at the return route of the movable handrail 7. It is inserted loosely at the bottom. Note that a recess 7a for handrail mechanical length compensation is formed by the handrail guide plate 17 at the lower part of the return path of the movable handrail 7, and the detection section 15b is disposed in this recess 7a. The drying equipment M16 has a blower 16 installed at the bottom inside the truss.
a and the heater 16b are fixed, and the Suita port 16c of the blower 16a is disposed near the detection part 15b of the detection sensor 15, facing the lower part of the return path of the moving handrail 7 and the elongated hole 17a of the guide plate 17. An electric heating coil 16d of the heater 16b is housed within the outlet of the blower 16a. The configuration of this embodiment other than that described above is the same as that of the conventional one shown in FIGS. 2 and 3. Next, the operation of the escalator according to this embodiment will be explained. Normally, when the moisture on the inner surface of the handrail 2 is less than the set value of the moisture detector 15, the drying device 16 is stopped and the handrail 2 runs like a normal escalator. When water enters the inner surface of the movable handrail 2 for some reason and reaches the set value, the sensor 15 outputs a signal. This signal causes the drying device 16 to operate, and the heater 1
The air heated by 6b is passed through the guide plate 1 by the blower 16a.
The inner surface of the movable handrail 7 is dried by spraying it onto the return path inner surface of the movable handrail 7 through the elongated hole 17a of the movable handrail 7. In this embodiment, the drying device 16 blows hot air onto the concave portion 7a on the return path where water that has entered the movable handrail 7 tends to accumulate, so that the inner surface of the movable handrail 7 can be reliably dried. Further, the air volume, temperature, etc. of the drying hot air can be controlled depending on the degree of moisture on the inner surface of the moving handrail 7. When the inner surface of the movable handrail 7 is dried as described above and the moisture content becomes less than the detection level, the sensor 15 detects this and stops the operation of the drying device 16. In the above embodiment, a sensor that detects moisture on the inner surface of the moving handrail is used, but the present invention may also use a sensor that detects the humidity of the air inside the truss. Further, the present invention includes means for communicating the operation of the sensor and the drying device to at least one of the operation unit of the passenger conveyor such as an escalator, the monitoring room of the building in which the passenger conveyor is installed, and the maintenance company of the passenger conveyor. You may let them.

【Effect of the invention】

As explained above, according to the present invention, the moisture on the inner surface of the handrail or the humidity of the air inside the truss is detected by a sensor, and the drying device provided in the truss is operated based on the output signal, thereby drying the handrail. Since the inner surface is dried, by drying the inner surface of the moving handrail where water has entered the return path of the inner surface of the moving handrail, it is possible to eliminate problems such as stoppages caused by an increase in the coefficient of friction on the inner surface of the moving handrail due to moisture. Moreover, it is possible to obtain a passenger conveyor in which the drying device can be easily driven and stopped, and can be properly controlled depending on the moisture condition on the inner surface of the moving handrail.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the main parts of a passenger conveyor according to an embodiment of the present invention, Fig. 2 is a schematic side sectional view of a conventional escalac, and Fig. 3 is a cross-sectional view of the parapet and moving handrail of Fig. 2. It is. 1-truss, 6-[dry, 7 moving handrail, 7a recess, 15
・Moisture detection sensor, 16 Drying device, 16a・Blower, 16b・Heater, 17 ・Guide plate, 17a Long hole. Note that the same reference numerals in the figures indicate the same or equivalent parts. Figure l

Claims (1)

[Claims] In a passenger conveyor having a moving handrail having a substantially C-shaped cross section, a sensor is installed in the truss to detect moisture or air humidity on the inner surface of the moving handrail, and a drying device is operated by an output signal from this sensor to dry the inner surface of the moving handrail. A passenger conveyor characterized by being provided with a device.