JP3288275B2 - Repair method of moving handrail for passenger conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing a moving handrail for a passenger conveyor, which repairs a detached portion of a canvas when several layers of adhesive bonded and fixed to the back side of a decorative rubber are peeled off.

[0002]

2. Description of the Related Art FIG. 5 is a perspective view showing an entire structure of a passenger conveyor, and FIG. 6 is a perspective view showing a canvas peeling portion generated on a moving handrail of the passenger conveyor.

In general, a passenger conveyor, for example, an escalator 1, includes a plurality of steps 2 connected endlessly, a balustrade 3 erected on the left and right of the steps 2, and a moving handrail 4 moving on the balustrade 3. Have. And the steps 2 and the moving handrails 4
Is moved in the same direction at the same speed, and the moving handrail 4 is removably mounted on a moving handrail guide (not shown) provided on the balustrade 3. It is configured so that it does not come off the guide.

As shown in FIG. 5, the moving handrail 4 has several layers of canvas 6 adhered and fixed to the back side of the decorative rubber 5 and has a C-shaped cross section. And a steel cord 7 inserted. further,
The cosmetic rubber 5 is formed of, for example, a hypalon rubber, which has good coloring properties, is glossy, and has excellent weather resistance. The canvas 6 is formed integrally with the decorative rubber 5, has a C-shaped cross section as a whole like the decorative rubber 5, and is made of a rubber belt wire fabric.

[0005] The passenger conveyor constructed as described above, that is, the moving handrail 4 of the escalator 1 moves by a frictional force with a driving pulley or a driving roller (not shown). For this reason, when the escalator 1 is used for a long time, the fabric peeling portion 8 is generated on the surface of the canvas 6 due to the friction with the driving pulley or the driving roller and the friction with the moving handrail guide. 7
Had the problem of popping out.

[0006] For this reason, as a method of repairing the canvas peeling portion 8, a method called kettle placing has been generally proposed and put into practice.

[0007]

However, in the above-mentioned conventional method, not only a great deal of labor is required to carry in a heavy pot, but also a lot of time is required for work. For example, if the length of the canvas peeling part is several meters, the time required for the repair will be 10 hours or more for a two-person operation. As described above, since a large amount of time is required for the repair time, the downtime of the passenger conveyor is prolonged, and there is a problem that the user is troubled.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances in the prior art, and an object of the present invention is to provide a method for repairing a moving handrail for a passenger conveyor which can easily repair a peeling portion of a canvas. is there.

[0009]

In order to achieve the above object, the present invention provides a method of bonding a plurality of layers of canvas to the back of a decorative rubber,
In the method for repairing a moving handrail for a passenger conveyor having a C-shaped cross section, when a part of the canvas layer is peeled, the moving handrail is turned over so that the canvas peeling part is on the upper side, and then the canvas peeling part is removed. After heating, the solid peeling portion is filled with the solid adhesive while being melted, and a coating having a low frictional resistance is placed on the surface of the adhesive. Then, the coating is adhered from the coating side to the adhesive. It is heated and pressed at a temperature at which the agent can be dissolved.

According to the present invention as described above, when repairing the canvas peeling portion generated on the surface of the canvas layer, first, the moving handrail is removed from the moving handrail guide so that the canvas peeling portion can be seen and turned over. Next, the canvas peeling portion is heated, and thereafter, the adhesive that melts at a predetermined temperature is filled in the canvas peeling portion, and a coating having low frictional resistance is placed on the surface of the adhesive. Next, the coating is heated and pressed at a temperature at which the adhesive can be dissolved. As described above, the repair work of the canvas peeling portion is a simple one in which after heating the canvas peeling portion, the adhesive is filled in the canvas peeling portion, and the coating body having low frictional resistance is adhered and fixed. The canvas peeling part can be repaired.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for repairing a moving handrail for a passenger conveyor according to the present invention will be described below with reference to the drawings.

FIG. 1 is a flow chart showing an embodiment of a method for repairing a moving handrail for a passenger conveyor according to the present invention, FIG. 2 is a perspective view showing a state where a canvas peeling section is heated, and FIG. FIG. 4 is a perspective view showing a state in which the agent is being filled.
FIG. 4 is a perspective view showing a state in which a coating body is placed on a canvas peeling portion and is pressed against while being heated. The same components as those shown in FIGS. 5 and 6 are denoted by the same reference numerals. That is, 4 is a moving handrail, 5 is a decorative rubber, 6 is canvas, and 8 is a canvas peeling section.

In this embodiment, when the canvas peeling portion 8 of the canvas layer 6 as shown in FIG. 6 is repaired, first, as shown in FIG. The moving handrail 4 is turned over so that the canvas peeling portion 8 can be seen in step S2.
Thereafter, as required in step S3, the canvas peeling portion 8 is cleaned, and in step S4, the frayed canvas of the canvas peeling portion 8 is cut as necessary to form a predetermined shape, for example, a rectangle, as shown in FIG. Then, in step S5, the formed fabric peeling section 8 is heated by the heating element 21 set at a temperature of 150 to 250 ° C., and then in step S6, the solid adhesive is melted by the adhesive filling device 10 shown in FIG. Fill the canvas peeling part 8. As described above, by heating the canvas peeling section 8 by the heating element 21, the dissolved adhesive is not hardened immediately in the canvas peeling section 8, and is evenly filled in the canvas peeling section 8.

The details of the operation shown in step S6 will be described with reference to FIG. As shown in FIG. 3, the above-described adhesive filling device 10 includes a gripper 11, a heater 12, a trigger 13,
It has a nozzle 14, an adhesive insertion port 15, and a power cord 16. Then, at the time of repair, the power supply cord 16 is turned on, and the solid adhesive 17 is inserted into the adhesive insertion port 15. Next, the nozzle 14 is brought into contact with the canvas peeling portion 8, and in this state, the trigger 13 is pulled, so that the molten adhesive melts out of the nozzle 14. The canvas peeling portion 8 is filled with the melted adhesive.

Next, in step S7, as shown in FIG. 4, a coating material having a low frictional resistance, for example, a canvas piece 9 having the same shape as the canvas peeling portion 8 formed in the predetermined shape is applied to the surface of the dissolved adhesive as shown in FIG. Then, as step S8, the canvas piece 9 is heated and pressed by a heating element, for example, an iron 20, at a temperature at which the adhesive can be melted, and the height of the adhesive and the canvas piece 9 is set to the surrounding canvas layer. So as to have the same height dimension as. At this time, the temperature of the iron 20 is 150
~ 250 ° C. Next, as step S9, natural cooling is performed, and a series of repair work ends. In addition, at the time of the natural cooling, if there is a steel wire inside the canvas, the canvas piece 9 may float, so that the canvas may be naturally cooled while being pressed against the vise or the like. The temperature of the heating body 21 and the iron 20 was set to 150 to 250 ° C.
Below 0 ° C., it is difficult to dissolve the adhesive.
If the temperature is higher than 50 ° C., the canvas pieces 9 may be burned.

In another embodiment constructed as described above, the repair work of the canvas peeling section 8 is to heat the canvas peeling section 8 and then fill the canvas peeling section 8 with an adhesive. It is a simple one in which the agent is filled and the coating having low frictional resistance, that is, the canvas piece 9 is adhered and fixed, and therefore the canvas peeling portion 8 can be easily repaired. Specifically, when the repair is performed by one person, the work can be performed within one hour. Further, when the canvas piece 9 is bonded and fixed, by heating the canvas piece 9, stronger adhesion can be obtained.

In this embodiment, the natural cooling is performed in step S9. However, if it is desired to finish the operation quickly, the cooling may be accelerated by a blower or the like.

[0018]

Since the present invention is constructed as described above, it is possible to easily repair the detached portion of the canvas, and thus the repair work can be performed in a short time, and the repair work can be easily performed. The downtime of the passenger conveyor can be reduced.

[Brief description of the drawings]

FIG. 1 is a flowchart showing one embodiment of a method for repairing a moving handrail for a passenger conveyor according to the present invention.

FIG. 2 is a perspective view showing a state in which a canvas peeling unit is being heated.

FIG. 3 is a perspective view showing a state where an adhesive is filled in a canvas peeling portion.

FIG. 4 is a perspective view showing a state in which the coating body is placed on the canvas peeling portion and pressed against while being heated.

FIG. 5 is a perspective view showing the overall configuration of a passenger conveyor.

FIG. 6 is a perspective view showing a canvas peeling portion generated on a moving handrail of the passenger conveyor.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 escalator (passenger conveyor) 4 moving handrail 5 decorative rubber 6 canvas 8 canvas peeling section 9 canvas piece (coated body) 10 adhesive filling device 17 solid adhesive 20 iron (heating body) 21 heating element

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Junji Chichi 1-5-5 Ichibancho, Aoba-ku, Sendai City, Miyagi Prefecture Hitachi Building Systems, Ltd. Tohoku Branch In-house (56) References JP-A-9-194810 (JP) JP-A-54-1588 (JP, A) JP-A-2-251586 (JP, A) JP-A-2-28043 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB Name) B66B 21/00-31/02

Claims (4)

(57) [Claims] 1. A method for repairing a handrail for a passenger conveyor having a C-shaped cross section by fixing several layers of canvas on the back side of the decorative rubber, wherein when a part of the canvas layer is peeled off, The handrail is turned over so that the upper side of the canvas is peeled off, and then the canvas peeling section is heated. Thereafter, the solid adhesive is applied to the canvas peeling section.
While filling while melting, a coating having low frictional resistance is placed on the surface of the adhesive, and then the coating is applied to the coating.
A method for repairing a moving handrail for a passenger conveyor, comprising heating and pressure- contacting the film body at a temperature at which the adhesive can be dissolved from the film body side . 2. The heating temperature of the canvas peeling part is 150 to
The method according to claim 1, wherein the temperature is set to 250 ° C. 3. The method according to claim 1, wherein said coating is a canvas . 4. The heating temperature of the coating is 150 to 25.
The method according to claim 1, wherein the temperature is set to 0 ° C.