JP5272825B2 - Heating device for moving handrails of man conveyors - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily heat a moving handrail used for a passenger conveyor for a short time and promptly resume the normal travel of the passenger conveyor even when the moving handrail becomes hardened by the drop of ambient temperature. <P>SOLUTION: Heating wires 16 are longitudinally provided on guide portions 15 of a forward path side rail 9 and a return path side rail 10 for guiding the forward path side and the return path side of the moving handrail of the passenger conveyor. A heating controller 14 applies a voltage between both ends of each heating wire 16, so that heat for heating the forward path side and the return path side of the moving handrail is generated from the heating wires 16. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a heating device for a moving handrail used on a man conveyor such as an escalator or a moving sidewalk.

  In a man conveyor such as an escalator or a moving sidewalk, an endless moving handrail having a C-shaped cross section is generally used, and this moving handrail is driven so as to synchronize with a step on which a passenger moves.

  Since the rubber material is usually used for the moving handrail used in the man conveyor, the moving handrail has a characteristic that it becomes hard as the outside air temperature decreases. For this reason, in cold regions, for example, the flexibility of the moving handrail may be lost at night when heating in the building is stopped. Sometimes it did not start.

  In view of such circumstances, a man conveyor including a device capable of warming a moving handrail has also been proposed (for example, see Patent Document 1). In this man conveyor, the heating wire is disposed in the internal space of the guide rail that guides the traveling of the moving handrail, so that the heating wire is heated by energization to prevent the moving handrail from freezing.

JP 2004-269142 A

  In the thing of patent document 1, the heat insulating material is spread in the internal space of a guide rail, and the heating wire is arrange | positioned on this heat insulating material. For this reason, heat can be transmitted only to the moving handrail through the air inside the guide rail, and there is a problem that the thermal efficiency is remarkably poor. That is, once the moving handrail is cured, it takes a long time for the flexibility required for traveling to recover to the moving handrail.

  Moreover, in the thing of patent document 1, the heating wire is arrange | positioned only below the forward path side of a moving handrail. For this reason, depending on the configuration (traveling route, etc.) on the return path side of the moving handrail, it is not possible to sufficiently reduce the traveling resistance acting on the entire moving handrail even if only the outward path is warmed, and then the man conveyor is started. However, traveling of the handrail may not be started or the handrail may not be synchronized with the step.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to easily and quickly heat a moving handrail used on a man conveyor, and a moving handrail due to a decrease in outside air temperature. An object is to provide a heating device for a moving handrail of a man conveyor that can resume normal running of the man conveyor at an early stage even if it is cured.

A heating device for a moving handrail of a man conveyor according to the present invention is a heating device for a moving handrail of a man conveyor provided with an endless moving handrail having a C-shaped cross section, and is a space inside the moving handrail. The first rail of the moving handrail is guided by the first guide portion made of metal and the second rail of the moving handrail is arranged in the space inside the moving handrail. Provided in the interior of the first guide , a return rail that guides the travel on the return path , a manual rail that guides the travel of the moving handrail at both entrances and exits of the man conveyor, and the moving handrail contacts the third guide section A first heating wire disposed along the length of the outward path side rail on one side portion and the other side portion of the first guide portion; and one side portion of the second guide portion provided inside the second guide portion. And the second electric heat disposed on the other side along the length of the return side rail. With the, between the two ends of the first electrical heating wire, and, by respectively applying a voltage between the ends of the second electrical heating wire, a heating controller for heating the first electrical heating wire and the second electrical heating wire, a The first heating wire has one end portion disposed on one side portion of the first guide portion along the length of the forward rail, the intermediate portion is folded back, and the other end portion is the other side of the first guide portion. The second heating wire is arranged along the length of the return-side rail on one side of the second guide part and the intermediate part is folded back. The other end portion is arranged along the length of the return rail on the other side portion of the second guide portion, and the third guide portion is made of resin and has no heating wire inside .

  According to this invention, the moving handrail used on the man conveyor can be easily heated in a short time, and even if the moving handrail is hardened due to a decrease in the outside air temperature, the normal operation of the man conveyor can be resumed early. Will be able to.

It is a side view which shows the whole structure of a man conveyor. It is a principal part block diagram which shows the heating apparatus for moving handrails of the man conveyor in Embodiment 1 of this invention.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
FIG. 1 is a side view showing an overall configuration of a man conveyor, and FIG. 2 is a main portion configuration diagram showing a heating device for a moving handrail of a man conveyor according to Embodiment 1 of the present invention. In the following, as an example of a man conveyor, a configuration of an escalator used when moving between upper and lower floors will be specifically described, and description of other examples such as a moving sidewalk will be omitted.

  1 and 2, 1 is a main frame of an escalator spanned between the upper and lower floors, 2 is a lower entrance / exit, 3 is an upper entrance / exit, 4 is a step, 5 is a running control of the step 4, etc. It is a control panel that manages the control. The step 4 is for a passenger of an escalator to ride when moving between the lower entrance 2 and the upper entrance 3. The step 4 is constituted endlessly as a whole by being connected to a step chain 6, and circulates between the lower entrance / exit 2 and the upper entrance 3.

  Reference numeral 7 denotes a guide rail for guiding the travel of a moving handrail (not shown) of the escalator, and reference numeral 8 denotes a handrail driving device that drives the moving handrail by a friction drive system or the like and travels along the guide rail 7. In addition, the said moving handrail is equipped for the passenger who rides on the step 4 to hold | grip, The principal part is comprised from the rubber material.

  The guide rail 7 has a configuration for circulating and moving an endless moving handrail between the lower entrance / exit 2 and the upper entrance 3. Specifically, the guide rail 7 is arranged in the forward rail 9 arranged in the A section shown in FIG. 1, the return rail 10 arranged in the B section, the lower annual rail 11 arranged in the C section, and the D section. The essential parts are constituted by the four rails of the upper upper rail 12 formed.

The forward rail 9 is a rail for guiding traveling on the forward side (upper side) of the moving handrail, that is, traveling of the portion held by the passenger on the step 4 in the moving handrail. For example, the outward rail 9 is provided along the upper edge of the balustrade 13.
The return side rail 10 guides the travel of the moving handrail on the return side (lower side), that is, the travel of the portion of the moving handrail that is disposed between the inlet guards of the lower entrance 2 and the upper entrance 3. It is a rail. The return side rail 10 is provided, for example, in a skirt guard or the main frame 1 disposed on the side of the step 4.

  The lower manual rail 11 is a rail for guiding the traveling of the handrail at the lower entrance 2. That is, the lower manual rail 11 has a function for turning the moving handrail upside down at the lower entrance 2. Further, the upper manual rail 12 is a rail for guiding the travel of the moving handrail at the upper entrance / exit 3 and has a function for turning the moving handrail upside down at the upper entrance 3.

When the escalator having the above configuration is installed in a building in a cold region, for example, in the winter season, the moving handrail may be hardened as the outside air temperature decreases. For this reason, the escalator is provided with a heating control device 14, and the guide rail 7 is also provided with a specific configuration.
In addition, below, the case where the escalator is equipped with the moving handrail of the general shape which exhibits a cross-sectional substantially C shape is demonstrated.

  The guide rail 7 is provided with a guide portion 15 having the configuration shown in FIG. 2 at least on both the outward path rail 9 and the return path rail 10. This guide part 15 comprises the part which actually contacts a moving handrail, in order to restrain the movement (travel) of a moving handrail to a predetermined direction.

  Specifically, the guide portion 15 is made of a rod-like member (for example, a metal rod-like member) having a predetermined thickness and width and having an appropriate strength, and is in a space formed inside the moving handrail. Be placed. In addition, the one side part 15a and the other side part 15b of the guide part 15 are exhibiting the convex curved surface matched with the inner surface shape of the opposing moving handrail. Further, between the one side portion 15a and the other side portion 15b of the guide portion 15, in order to reduce the resistance when the moving handrail travels (that is, the contact area with the moving handrail), there is a recess 15c along its length. Is formed.

  And the guide part 15 which has the said structure is provided with the heating wire 16 over the whole length of the guide part 15 inside the one side part 15a and the other side part 15b. As for this heating wire 16, the intermediate part is turned up inside the one end of the guide part 15, and the one end part side is arrange | positioned in the one side part 15a of the guide part 15 over the longitudinal direction. Further, the other end portion side of the heating wire 16 is disposed on the other side portion 15b of the guide portion 15 over the length thereof.

  On the other hand, the heating control device 14 heats the heating wires 16 embedded in the guide portions 15 of the outward path rail 9 and the return path rail 10 to heat both the outward path side and the return path side of the moving handrail. have. That is, the heating control device 14 applies heat to both ends of the heating wire 16 in each guide portion 15 to flow current through the heating wire 16, thereby generating heat for warming the moving handrail to each heating wire. 16 is generated.

In order to have the above function, the heating control device 14 includes, for example, a power supply 17, a control power supply control unit 18, and a heating resistance control variable resistor 19, which are connected in series to the heating wire 16. It is connected.
The power supply control unit 18 has an ON / OFF function of the power supply 17 and an adjustment function of the variable resistor 19. For example, the power supply control unit 18 performs ON / OFF control of the power supply 17 based on each condition or combination condition such as the outside air temperature, time, and temperature of the moving handrail.

  By using the heating device for the moving handrail having the above-described configuration, both the forward path side and the return path side of the moving handrail can be easily heated in a short time. For this reason, for example, even if the moving handrail hardens due to a decrease in the outside air temperature, the flexibility of the moving handrail can be recovered in a short time, and the normal traveling of the escalator can be resumed early.

  That is, by heating each heating wire 16, the guide portions 15 of the forward rail 9 and the return rail 10 can be heated directly from the inside thereof, so that the thermal efficiency is very good and the moving handrail can be predetermined in a short time. Can be raised to temperature. In addition, since the heating wire 16 is arranged along the length of the one side portion 15a and the other side portion 15b of the guide portion 15, the curved portion of the moving handrail can be particularly efficiently heated, and the moving handrail is heated after heating. Thus, it is possible to reliably solve the conventional problem that the running of the vehicle is not started.

  Moreover, since the heating wire 16 embedded in the guide portion 15 is entirely or principally in contact with the guide portion 15 inside the guide portion 15, the heat generated by the heating wire 16 is efficiently transmitted to the moving handrail. Can do. That is, at least a portion of the guide portion 15 that contacts the heating wire 16 and a portion that contacts the moving handrail is made of metal, so that the heat generated by the heating wire 16 can be efficiently transmitted to the moving handrail. Will be able to.

In addition, in this Embodiment, the case where the heating wire 16 was provided in each guide part 15 of the outward side rail 9 and the return side rail 10 among the guide rails 7 was demonstrated. However, this is merely an example. If possible, a heating wire 16 is also provided in each guide portion of the lower and upper manual rails 11 and 12, and the heating control device 14 performs heating control. May be.
According to such a configuration, it becomes possible to warm the entire moving handrail at an early stage, and the normal traveling of the escalator can be resumed earlier.

Moreover, the heating apparatus for moving handrails having the above-described configuration and function can be applied to a new escalator as well as an existing escalator.
Specifically, first, the moving handrail of the existing escalator is removed, and the forward side rail 9 and the return side rail 10 (each guide portion 15 thereof) are replaced with those having the above-described configuration. And the heating control apparatus 14 is installed in an appropriate place, such as in the main frame 1. By such a simple operation, the existing escalator can be repaired so as to achieve the above effect.

  In the above-described refurbishment, when the lower annual rail 11 and the upper annual rail 12 are not replaced, the guide portions 15 of the outward side rail 9 and the return side rail 10 are members having high thermal conductivity (for example, metal members), Even if the guide portions of the lower and upper annual rails 11 and 12 are members having low thermal conductivity (for example, resin members), no problem occurs.

1 main frame, 2 lower entrance / exit, 3 upper entrance / exit, 4 steps, 5 control panel,
6 Step chain, 7 Guide rail, 8 Handrail drive, 9 Outward rail,
10 return rail, 11 lower annual rail, 12 upper annual rail,
13 balustrade, 14 heating control device, 15 guide part, 15a one side part,
15b other side, 15c recess, 16 heating wire, 17 power supply,
18 Power control unit, 19 Variable resistance

Claims (2)

A heating device for a moving handrail of a man conveyor provided with an endless moving handrail having a C-shaped cross section,
A forward-side rail that guides traveling on the forward side of the movable handrail by a metal first guide portion disposed in a space inside the movable handrail;
A return-side rail that guides travel on the return-path side of the moving handrail by a metal second guide portion disposed in a space inside the moving handrail;
Guide the travel of the moving handrail at both entrances and exits of the man conveyor, and a manual rail that is in contact with the moving handrail at a third guide portion;
A first heating wire provided inside the first guide portion, disposed on one side and the other side of the first guide portion along the length of the forward-side rail;
A second heating wire provided inside the second guide portion, disposed on one side and the other side of the second guide portion along the length of the return side rail;
A heating control device for heating the first heating wire and the second heating wire by applying a voltage between both ends of the first heating wire and between both ends of the second heating wire;
Equipped with a,
The first heating wire has one end portion disposed on one side portion of the first guide portion along the length of the forward rail, the intermediate portion is folded back, and the other end side is the first guide portion. Arranged along the length of the forward rail on the other side,
The second heating wire has one end portion disposed on one side portion of the second guide portion along the length of the return side rail, the intermediate portion is folded back, and the other end portion side is the second guide portion. Arranged along the length of the return rail on the other side,
The heating device for a moving handrail of a man conveyor, wherein the third guide portion is made of resin and does not include a heating wire therein . The forward path rail is formed with a recess for reducing resistance when the movable handrail travels between one side and the other side of the first guide part. 2. A heating device for a moving handrail of a man conveyor according to 1 .

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