JP2010195569A - Heating device for moving handrail of man conveyor and handrail for man conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and quickly heat a moving handrail used in a man conveyor and promptly restarting normal running of the man conveyor even when the moving handrail is hardened by the lowering of outside temperatures. <P>SOLUTION: Electrodes 13a, 13b are provided on the surface of the moving handrail 7 of the man conveyor in the longitudinal direction of the moving handrail 7. A plurality of heating wires 14 are embedded inside the moving handrail 7, and each heating wire 14 is connected to the electrodes 13a, 13b. Current is made to flow in each heating wire 14 by applying voltage to the electrodes 13a, 13b, and heat for heating the moving handrail 7 is generated from each heating wire 14. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

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

  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, a heating wire is disposed inside a guide rail that guides the travel 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, since a heating wire is arrange | positioned inside the guide rail, even if it heats a heating wire, heat can be transmitted only to the moving handrail through the air inside a guide rail. For this reason, there was a problem that it took a long time to recover the flexibility required for running once the moving handrail was hardened because the thermal efficiency was extremely poor.

  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. It is to provide a heating device for a moving handrail of a man conveyor that can resume the normal running of the man conveyor at an early stage, and a handrail for a man conveyor that can realize the above-described effect in the man conveyor. .

  The heating device for a moving handrail of a man conveyor according to the present invention is provided along the length of the moving handrail on the endless moving handrail provided for the passenger of the man conveyor to grip and the surface of the moving handrail. The first electrode, the second electrode provided along the length of the moving handrail without contacting the first electrode on the surface of the moving handrail, and the first electrode and the second electrode are provided inside the moving handrail. And a heating control device that heats the heating wire by applying a voltage between the first electrode and the second electrode.

  A handrail for a man conveyor according to the present invention includes a first electrode provided on the surface of the handrail main body along the length of the handrail main body, and a surface of the handrail main body along the length of the handrail main body without being in contact with the first electrode. And a heating wire that is provided inside the handrail main body and connects the first electrode and the second electrode.

  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 block diagram which shows the heating apparatus for moving handrails of the man conveyor in Embodiment 1 of this invention. It is a perspective view which shows the principal part of the moving handrail 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 the overall configuration of the man conveyor. 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.

In FIG. 1, 1 is the main frame of the escalator spanned between the upper and lower floors, 2 is the lower entrance / exit, 3 is the upper entrance / exit, 4 is the step, 5 is the running control of the step 4, etc. It is the control panel that governs it. 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 moving handrail for a passenger moving on the step 4 to grip, and 8 denotes a handrail driving device for driving the moving handrail 7 by a friction drive system or the like.

  The main part of the moving handrail 7 is made of a rubber material and has an endless shape. Specifically, the moving handrail 7 is driven so that its upper side moves along the upper end portion of the balustrade 9 erected on the side of the step 4 and is synchronized with the step 4 on which the passenger rides. Further, the moving handrail 7 is inverted up and down at the lower entrance 2 and the upper entrance 3, and the lower side is arranged in a skirt guard provided on the side of the step 4. In addition, the traveling direction of the upper side of the moving handrail 7 and the both reversing parts are guided by guide rails (not shown) provided at the edge of the balustrade 9.

  For example, when the escalator having the above-described configuration is installed in a building in a cold region, the moving handrail 7 may be cured as the outside air temperature decreases in the winter season. For this reason, the escalator is provided with a heating control device 10 in the upper machine room or the like, and the moving handrail 7 is also provided with a specific configuration.

  Below, with reference also to FIG.2 and FIG.3, the specific structure of the said heating apparatus 10 and the moving handrail 7 is demonstrated. 2 is a block diagram showing a heating device for a moving handrail of a man conveyor according to the first embodiment of the present invention, and FIG. 3 is a perspective view showing a main part of the moving handrail according to the first embodiment of the present invention.

  1 to 3, the movable handrail 7 has a substantially C-shaped cross section in the lateral direction (short direction), and is opened between the opposite edge portion 11a and the other edge portion 11b over the length thereof. 12 is formed. A bar-shaped electrode 13 a is provided along the length of the moving handrail 7 on one edge 11 a of the moving handrail 7, and this electrode 13 a extends outside the edge 11 a over the length of the moving handrail 7. It is arranged so as to protrude slightly from the surface.

Moreover, the other edge part 11b side of the moving handrail 7 has the same structure as the one edge part 11a side. That is, the other edge portion 11 b of the moving handrail 7 is provided with a rod-shaped electrode 13 b along the length of the moving handrail 7, and this electrode 13 b extends outside the other edge portion 11 b over the length of the moving handrail 7. It is arranged so as to protrude slightly from the surface.
The electrodes 13a and 13b are made of conductive rubber, for example.

  In addition, a large number of heating wires 14 are embedded in the moving handrail 7. The heating wire 14 is connected in parallel between the electrodes 13a and 13b by connecting one end to the electrode 13a and the other end to the electrode 13b. And the heating wire 14 is provided along the transversal direction of the moving handrail 7 for every predetermined space | interval (for example, L = 20 cm), for example, and is arrange | positioned over the whole length of the moving handrail 7. FIG.

  The heating control device 10 has a function of heating each heating wire 14 to warm the entire moving handrail 7. That is, the heating control device 10 applies a voltage between the electrodes 13 a and 13 b and causes a current to flow through each heating wire 14 provided in the moving handrail 7, thereby generating heat for heating the moving handrail 7. It generates from each heating wire 14.

In order to have the above function, the heating control device 10 includes, for example, a power supply 15, a control power supply control unit 16, a variable resistor 17 for adjusting the heating temperature, and electrodes 18 a and 18 b.
The power supply control unit 16 has an ON / OFF function of the power supply 15 and an adjustment function of the variable resistor 17. For example, the power supply control unit 16 performs ON / OFF control of the power supply 15 based on each condition or combination condition such as the outside air temperature, time, and the temperature of the moving handrail 7.

  One electrode 18a is arranged to face the electrode 13a, and the other electrode 18b is arranged to face the electrode 13b. That is, when the electrodes 18a and 18b are in contact with the exposed portions of the electrodes 13a and 13b, the voltage of the power source 15 is applied to each heating wire 14. The electrodes 18a and 18b are disposed, for example, in the balustrade 9 or the main frame 1 or the like.

  By using the heating device for a moving handrail having the above-described configuration, the entire moving handrail 7 can be easily heated in a short time. For this reason, for example, even if the moving handrail 7 hardens due to a decrease in the outside air temperature, the flexibility of the entire moving handrail 7 can be recovered in a short time, and normal travel of the man conveyor can be resumed early. It becomes possible.

  That is, since the moving handrail 7 can be heated directly from the inside by heating the heating wire 14, the heat efficiency is very good, and the moving handrail 7 can be raised to a predetermined temperature in a short time. Moreover, since the heating wire 14 is arrange | positioned over the whole length of the moving handrail 7, the whole moving handrail 7 can be heated simultaneously, and the softness | flexibility of the whole moving handrail 7 can be recovered simultaneously. Therefore, it is possible to reliably eliminate the conventional problem that the traveling of the handrail 7 is not started after heating.

  Moreover, since the heating wire 14 in the moving handrail 7 is connected in parallel between the electrodes 13a and 13b, the amount of heat generated when the heating wire 14 is energized can be increased. Furthermore, since the heating wire 14 is arranged in the short direction of the moving handrail 7 and the length of each heating wire 14 is shortened, the amount of heat generation can be increased. Therefore, the time required for warming the moving handrail 7 can be greatly shortened, and even if the moving handrail 7 is cured, the normal traveling of the man conveyor can be resumed early.

Further, the electrode 13a is disposed on one edge 11a of the moving handrail 7 and the electrode 13b is disposed along the other edge 11b of the moving handrail 7, and the heating wire 14 is connected between the electrodes 13a and 13b. Even the edges 11a and 11b of the handrail 7 can be warmed without hesitation.
The electrodes 13a and 13b may be arranged along the length of the moving handrail 7 without contacting each other, and are not limited to the above configuration. For example, the electrodes 18a and 18b may be provided on the guide rail, and the electrodes 13a and 13b may be exposed from the inner surface of the moving handrail 7 having a C-shaped cross section.

  Further, by configuring the electrodes 13a and 13b with conductive rubber, the flexibility required for the moving handrail 7 can be easily secured, and the traveling of the moving handrail 7 may be hindered by the installation of the electrodes 13a and 13b. Absent.

When manufacturing the moving handrail 7 having the above configuration, first, a long handrail body having the same configuration as the moving handrail 7 shown in FIG. 3 is manufactured. Then, the handrail body is cut into a predetermined length and both ends thereof are connected to complete the endless (annular) moving handrail 7.
If the electrode 13a is in contact with the electrode 18a and the electrode 13b is in contact with the electrode 18b, the heating wire 14 can generate heat. Therefore, the electrodes 13a and 13b of the moving handrail 7 do not necessarily need to be formed endlessly. That is, a gap may be formed between both ends of the electrode 13a and between both ends of the electrode 13b in the connection portion of the handrail body. In such a case, for example, if the lengths of the electrodes 18a and 18b are made longer than the gap, the same effect as the above can be expected.

1 main frame, 2 lower entrance / exit, 3 upper entrance / exit, 4 steps, 5 control panel,
6 step chain, 7 moving handrail, 8 handrail drive, 9 balustrade,
10 heating control device, 11a one edge, 11b other edge, 12 opening,
13a electrode, 13b electrode, 14 heating wire, 15 power supply,
16 power supply control unit, 17 variable resistance, 18a electrode, 18b electrode

Claims (8)

An endless moving handrail provided for gripping passengers on the man conveyor,
A first electrode provided on a surface of the moving handrail along a length of the moving handrail;
A second electrode provided on the surface of the movable handrail along the length of the movable handrail without being in contact with the first electrode;
A heating wire provided inside the moving handrail and connecting the first electrode and the second electrode;
A heating control device for heating the heating wire by applying a voltage between the first electrode and the second electrode;
A heating device for a moving handrail of a man conveyor characterized by comprising:   A plurality of heating wires are provided along the short direction of the moving handrail so as to be arranged over the entire length of the moving handrail, and each of them is connected in parallel between the first electrode and the second electrode. The heating device for a moving handrail of a man conveyor according to claim 1, characterized in that: The first electrode is provided at one edge of a moving handrail having a C-shaped cross section,
The heating device for a moving handrail of a man conveyor according to claim 1 or 2, wherein the second electrode is provided at the other edge portion of the moving handrail.   The heating device for a moving handrail of a man conveyor according to any one of claims 1 to 3, wherein the first electrode and the second electrode are made of conductive rubber. A first electrode provided on the surface of the handrail main body along the length of the handrail main body;
A second electrode provided on the surface of the handrail main body along the length of the handrail main body without being in contact with the first electrode;
A heating wire provided inside the handrail body, connecting the first electrode and the second electrode;
A handrail for a man conveyor characterized by comprising:   A plurality of heating wires are provided along the lateral direction of the handrail body so as to be arranged over the length of the handrail body, and each of them is connected in parallel between the first electrode and the second electrode. The handrail for a man conveyor according to claim 5. The first electrode is provided at one edge of a handrail body having a C-shaped cross section,
The handrail for a man conveyor according to claim 5 or 6, wherein the second electrode is provided at the other edge portion of the handrail main body.   The handrail for a man conveyor according to any one of claims 5 to 7, wherein the first electrode and the second electrode are made of conductive rubber.

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