JP2001240358A - Heating and pressurizing device for handrail of passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating and pressurizing device for handrails of a passenger conveyor, which can improve work efficiency by reducing the load of workers by eliminating the necessity of additional clamping in pressurizing work by reducing the number of turns of fusing. SOLUTION: This device is provided with molds 1 to 3, electric heating bodies 5 arranged in the molds 1 and 2, clamping bolts 6, nuts 7, coned disc springs 8 and insulating bodies provided in both ends in the longitudinal directions of the molds 1 to 3. Given this constitution, the fusing section of the canvas of a movable hand rail and a decorative rubber body is heated at a specified fusing temperature, held by the molds 1 to 3. The temperature rising in the decorative rubber body at the end sections in the longitudinal directions of the molds 1 to 3 is restrained to lower the temperature than fusing temperature for holding the pressurizing force of the molds 1 to 3 by elastically energizing the molds by means of the spring 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for heating and pressurizing a handrail for moving a passenger conveyor, which is used for fusing a canvas of the handrail for moving a passenger conveyor with decorative rubber.

[0002]

2. Description of the Related Art Generally, a large number of passenger conveyors such as escalators and auto lines are installed in department stores and stations.
Such a passenger conveyor is provided with a moving handrail to be gripped when the passenger moves on the steps.

FIG. 11 is a view showing the structure of a general moving handrail provided on this type of passenger conveyor. This FIG.
The moving handrail 4 shown in FIG. 2 has a C-shaped cross section, and covers a plurality of laminated canvases 101, a plurality of tensile members 102 provided between these canvases 101, and the surface of the canvas 101. And a decorative rubber 103.
Is formed with a slider surface 104 inside.

In such a handrail 4 of a passenger conveyor, the design of the decorative rubber 103 is particularly important. Since the decorative rubber 103 is driven in synchronization with the twelve steps 51, the decorative rubber 103 is forced to bend by a drive wheel (not shown), and cracks occur over time. Similarly, the canvas 101 traveling on the guide rail surface (not shown) wears over time, causing a serious accident such as jumping out of the tensile member 102 inside the canvas 101. Therefore, before the aging of the canvas 101 and the decorative rubber 103 occurs, the moving handrail 4 is periodically replaced.
When such a moving handrail 4 is exchanged, it is necessary to wind the new moving handrail 4 around a balustrade (not shown), and then connect both ends of the moving handrail 4 to form an endless shape.

[0005] Next, the state of fusing the decorative rubber 103 when connecting both ends of the moving handrail 4 will be described with reference to FIG. That is, in the vicinity of the connecting portion 30 of the moving handrail 4 in FIG.
The simple vulcanized decorative rubber 31 is made of unfused canvas 32
It is melted at the same time as the fusing work of the unvulcanized cosmetic rubber 34 and the unvulcanized cosmetic rubber 33 on the back, which are pasted with glue.

Next, when the moving handrail 4 is replaced, the unfused canvas 3
A conventional heating and pressurizing device for heating and pressurizing the non-vulcanized cosmetic rubbers 33 and 34 and fusing them together will be described with reference to FIGS. FIG. 6 is a longitudinal sectional view showing a conventional heating and pressurizing device for a passenger conveyor moving handrail, and FIG. 7 is a side view of the heating and pressurizing device in FIG.

The conventional heating and pressurizing apparatus shown in FIG. 6 comprises an upper mold 1, which heats an unfused canvas 32, unvulcanized decorative rubbers 33 and 34 and a simple vulcanized decorative rubber 31 in the vicinity thereof. Lower mold 2 and middle mold 3, upper mold 1, lower mold 2
A pair of electric heating elements 5 each of which heats the entire length thereof,
It comprises a plurality of sets of fastening bolts 6 and nuts 7 for fastening the upper mold 1, the lower mold 2 and the middle mold 3. The upper mold 1 and the lower mold 2 each have a contact surface that comes into contact with the surface shape of the decorative rubber 103 with respect to the moving handrail 4 having a C-shaped cross section, and the contact surfaces are mirror-finished. In addition, the lower mold 2 is provided with a burr hole 2a for allowing excess cosmetic rubber during fusion to escape to the outside of the heating and pressing device.

Next, the operation of installing the above-mentioned heating and pressing device on the steps 51 will be described with reference to FIG. That is,
As shown in FIG. 12, the heating and pressurizing device is arranged obliquely along the plurality of steps 51, and in this state, the stopper 52 is applied to the base 53 so that the heating and pressurizing device does not shift, and is installed on the step 51. It has become.

Next, the fusing operation using the above-mentioned heating and pressing device will be described with reference to FIG. It should be noted that FIG.
9 is a longitudinal sectional view of the heating and pressing device in the longitudinal direction, and FIG. 8B is a diagram illustrating a temperature distribution in the longitudinal direction of the heating and pressing device. In FIG. 8 (b), A, B, C, and D on the horizontal axis indicate longitudinal portions of the heating and pressurizing device, and a simple vulcanized cosmetic rubber is provided between portions A and B and between portions C and D on both sides. The portion between the intermediate portions B and C corresponds to the portion of the unfused canvas 32. Further, T1 on the vertical axis represents the remelting limit temperature of the decorative rubber, T2 represents the fusion lower limit temperature of the decorative rubber, and T3
Indicates the maximum fusion temperature.

When attaching the new moving handrail 4 using the heating / pressing device shown in FIG. 8A, first, the canvas 101 and the tensile member 102 shown in FIG. The unfused canvas 32 shown in FIG. 8 is preformed into a C-shape to form the moving handrail 4 shape. Next, the lower mold 2 of the heating and pressing device is placed on the surface of the back unvulcanized decorative rubber 33 shown in FIG. 10 which is attached to the unfused canvas 32, and the middle mold is formed as shown in FIG. Then, the unmolded ear rubber 34 is stuck thereon, and the upper mold 1 is installed.

Next, while reading thermometers (not shown) provided separately on the upper and lower sides, a power supply (not shown) of the electric heating element 5 is turned on and off, and as shown in FIG. The fusion work is performed for a predetermined time in a temperature range up to the fusion upper limit temperature T3.

Next, as a pressing operation using the above-mentioned heating and pressing device, an operator manually tightens a plurality of sets of fastening bolts 6 and nuts 7 shown in FIG. 6 and FIG. The moving handrail 4 is sandwiched between the lower mold 1 and the lower mold 2, and the electric heating element 5 is energized to heat the upper mold 1 and the lower mold 2. Also,
In order to avoid a shortage of the decorative rubber 103 at the time of fusion, the unvulcanized decorative rubber 33 and the rubber 34 are set extra. As a result, a gap is formed between the upper mold 1 and the lower mold 2. However, as the unvulcanized cosmetic rubbers 33 and 34 are melted, excess cosmetic rubber flows out of the lower mold 2 through the burr holes 2 a. Since the fluid flows to both ends of the molds 1 to 3, the upper mold 1 gradually sinks and the pressing force decreases.

Next, a description will be given, with reference to FIG. 9, of a decrease in the pressing force during the above-mentioned welding operation. FIG. 9 is a diagram showing the amount of change in the upper mold at the time of fusion by a conventional heating and pressing device.
Here, the horizontal axis of FIG. 9 indicates the fusion time, and t on this horizontal axis.
0 indicates the end of the fusing operation. The vertical axis in FIG. 9 indicates the amount of displacement of the upper mold 1.

When the fusing operation is performed using the above-mentioned heating and pressurizing device, the amount of change of the upper mold 1 at the start of fusing is 0, and thereafter, the fusing of the unvulcanized decorative rubber 33 and the rubber 34 are started. As the process proceeds, at the time t0 at the end of the fusion, as shown in FIG. Therefore, it is necessary for the operator to retighten the plurality of fastening bolts 6 and nuts 7 manually during welding in order to maintain the pressing force.

When the heating and pressurizing operation for a predetermined time is completed as described above, the movable handrail 4 is cooled after cooling to a predetermined temperature and releasing the fastening bolts 6 and nuts 7 tightened at a predetermined fastening pressure. It is designed to be taken out of the heating and pressing device.

As related to this type of prior art, as described in, for example, Japanese Patent Application Laid-Open No. Sho 63-147795, heating of a handrail of a passenger conveyor moving handrail provided with a heating temperature control means using an electric heating element. Pressure devices have been proposed. This conventional heating and pressurizing device regulates the upper limit temperature of the upper surface and lower surface electric heating elements in response to the operator turning on and off the power supply of the upper surface and lower surface electric heating elements, and sets a predetermined predetermined temperature. A temperature difference control means for turning on / off the power so as to be able to heat the inside is provided.

Further, as described in, for example, Japanese Patent Application Laid-Open No. 7-10451, in addition to providing the electric heating element 5 on the upper mold 1 and the lower mold 2 which press the upper and lower surfaces of the moving handrail 4, respectively. In addition, there has been proposed a middle mold 3 fitted with the upper mold 1 and inserted into the inside of the moving handrail 4 and provided with another electric heating element.

[0018]

By the way, in the above-mentioned conventional heating and pressurizing apparatus, as shown in FIG. 8 (a), electric heating is performed over the entire length (portions A to D) of the upper mold 1 and the lower mold 2. Since the body 5 is installed, as shown in FIG. 8 (b), the entire area A to D exceeds the remelting limit temperature T1 of the decorative rubber. That is, the sum of the unfused portion lengths of the portions B to C sandwiched between the upper mold 1 and the lower mold 2 and the simple fused portion lengths of the portions A to B and the portions C to D is the mold 1 to 3. Since the decorative rubber is melted over the entire length of the molds 1 to 3, excess cosmetic rubber flows into the burr holes 2a or flows toward the ends of the molds 1 and 2. When the excess cosmetic rubber reaches the ends of the molds 1 and 2, the ambient temperature rapidly falls below the remelting limit temperature T1, so that the flow of the cosmetic rubber stops rapidly, There is a problem that unevenness of the decorative rubber is generated in the vicinity of the simple vulcanized decorative rubber 31. In addition, since a portion where the decorative rubber and the canvas are already fused is heated and pressed, this portion needs to be fused again, and there is a problem that the number of fusion operations increases.

While the moving handrail 4 is being fused, a plurality of sets of the fastening bolts 6 and nuts 7 of the heating and pressurizing apparatus shown in FIG. 7 are retightened. And the efficiency of the heating and pressurizing operation is significantly reduced.

Further, as shown in FIG. 12, it is difficult to accurately install the heating and pressurizing device when setting the heating and pressurizing device on the steps 51 of the passenger conveyor. There is also a problem that a defect occurs in the fusion work of No. 4.

The present invention has been made in view of the above-mentioned circumstances in the prior art, and a first object of the present invention is to provide a heating and pressurizing device for moving a handrail by using a longitudinal end of the device. An object of the present invention is to provide a heating and pressurizing apparatus for a handrail moving a passenger conveyor, which can be lower than the fusing temperature of the decorative rubber, and can reduce the number of times of fusing operation to shorten the operation.

A second object of the present invention is to reduce the burden on the operator by improving the working efficiency by eliminating the tightening work due to the pressurization during the heating and pressurizing of the moving handrail. An object of the present invention is to provide a heating and pressurizing device for a handrail that can move a passenger conveyor.

[0023]

In order to achieve the first object described above, the invention according to claim 1 of the present invention is directed to a passenger used for fusing a canvas of a passenger conveyor moving handrail with decorative rubber. In a heating and pressurizing device for a conveyor moving handrail, an upper mold, a lower mold, and a middle mold for sandwiching and heating the fused portion of the canvas and the decorative rubber and the vicinity thereof, and these upper mold and lower mold The upper mold, the lower mold, and the middle mold, and insulators respectively provided at both ends in the longitudinal direction of the upper mold, the lower mold, and the middle mold. By setting each temperature of the mold and the middle mold as the fusing temperature of the decorative rubber, the upper mold, the lower mold, and the middle mold are shielded from heat generated by the insulator at longitudinal end positions. The configuration is such that the temperature rise of the cosmetic rubber is suppressed.

In the invention according to the first aspect of the present invention, the fusion portion of the moving handrail between the canvas and the decorative rubber is sandwiched between the molds and heated at a predetermined fusion temperature, and the movable handrail is heated at a predetermined fusion temperature. Since the temperature rise of the decorative rubber is suppressed at the end portion in the longitudinal direction, the flow of the decorative rubber gradually stops when excess cosmetic rubber flows from the fused portion of the decorative rubber toward the end of the mold. Further, there is no possibility that a portion where the decorative rubber and the canvas are already fused is heated at a predetermined fusion temperature. As a result, it is possible to prevent unevenness of the decorative rubber from being generated at the longitudinal end of the mold, and it is possible to reduce the number of times and time for fusing the decorative rubber, thereby improving the efficiency of the heating and pressing operation of the moving handrail. It is possible to achieve. And if the insulator is formed of a composite material having a low thermal conductivity, for example,
It is possible to reliably reduce the temperature at the end of the insulator during the fusion work.

In order to achieve the second object, the invention according to a second aspect of the present invention is directed to a method of heating a passenger conveyor moving handrail used for fusing a canvas of a passenger conveyor moving handrail with decorative rubber. In the pressing device, an upper mold and a lower mold that sandwich and press the fusion portion between the canvas and the decorative rubber and the vicinity thereof, and fastening bolts respectively provided in the upper mold and the lower mold, A nut and a spring washer are provided, and the fastening bolt, the nut and the spring washer are used to press the canvas and the decorative rubber through the upper mold and the lower mold before fusing, so that these canvas and It is configured to suppress the fluctuation of the pressing force due to the fusion with the cosmetic rubber.

According to the second aspect of the present invention, the upper mold is displaced as the cosmetic rubber is fused. However, the upper mold is displaced by the fastening bolt, the nut and the spring washer. By elastically urging through the lower mold, the operator does not need to manually retighten a plurality of sets of fastening bolts and nuts to maintain the pressing force during fusion. Thereby, when heating and pressurizing the moving handrail, the burden on the worker can be reduced and the working efficiency can be improved.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a heating and pressurizing device for a handrail of a passenger conveyor according to the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing a heating and pressurizing device for a passenger conveyor moving handrail according to an embodiment of the present invention, FIG. 2 is a side view showing a heating and pressurizing device of this embodiment, and FIG. FIG. 4 is a view for explaining an operation of heating by a heating and pressing device of the embodiment, FIG. 4 is a diagram showing a change amount of an upper mold during fusion by the heating and pressing device of the embodiment, and FIG. It is a side view which shows the state which installed the pressure device on the step. In addition, FIG.
In FIG. 5, the same components as those shown in FIGS. 6 to 12 are denoted by the same reference numerals. In addition, FIG.
FIG. 3 is a longitudinal sectional view of the heating and pressurizing device in the longitudinal direction, and FIG. 3B is a diagram showing a temperature distribution in the longitudinal direction of the heating and pressurizing device.

The heating and pressurizing device of this embodiment shown in FIG.
An upper mold 1, a lower mold 2, and a middle mold 3, a pair of electric heaters 5 for heating the upper mold 1 and the lower mold 2, respectively, and a plurality of sets for fastening the upper mold 1 and the lower mold 2. Bolts 6 and nuts 7
And a conical spring washer 8, a base 9 having one end having the same inclination angle as that of the step 51, for mounting the heating and pressurizing device on the step 51, an upper mold 1, and a lower mold 2. And a pedestal 11, 1 provided on the upper mold 1 and the lower mold 2 for mounting the fastening bolt 6 respectively.
2, and the surface of each of the upper mold 1 and the lower mold 2 is provided with a protective material 13 or metal plating. As shown in FIG. 2, the heating and pressurizing device of the present embodiment includes a detachment bolt 22 for simplifying detachment of the upper mold 1 and the lower mold 2 after fusion. An insulating material 21 for suppressing a rise in temperature at the time of fusion and a cooling tank 23 containing a cooling medium are provided at both ends in the longitudinal direction of 3.

In FIG. 3A, A, B, C, and D indicate portions in the longitudinal direction of the heating and pressurizing device, respectively. D
The portions of the bonding surface between the insulating material 21 and the molds 1 to 3 are denoted by B and C, respectively, from the side closer to one end. The electric heating element 5 is arranged between the parts B and C of the upper mold 1 and the lower mold 2, and the heat insulating material 10 is arranged between the parts A and D (that is, over the entire length). A moving handrail 4 is provided between the portions A and B and the portions C and D at both ends of the molds 1 to 3, respectively.
The vulcanized rubber vulcanized part and the insulating material 21 are arranged,
A simple vulcanized cosmetic rubber 31 and unvulcanized cosmetic rubbers 33 and 34 are arranged between the intermediate portions B and C. Also, mold 1,
2 between the parts A to D, the protective material 13 on each of the molds 1 and 2
Is arranged.

In FIG. 3B, the abscissa indicates the longitudinal portion of the heating and pressing device, and the ordinate indicates the internal temperature of the heating and pressing device. To T
3, the melting lower limit temperature is represented by T2, and the remelting limit temperature of the vulcanized portion of the moving handrail 4 in the vulcanized rubber is represented by T1.

In FIG. 4, the horizontal axis represents the fusion time, the vertical axis represents the amount of change in the upper mold during fusion, and t0 on the horizontal axis represents the end of the fusion work.

In the heating and pressurizing device of this embodiment,
First, as shown in FIG. 5, the heating and pressurizing device is arranged obliquely along a plurality of steps 51, and in this state, the heating and pressurizing device is installed on the steps 51 via the base 9. Next, as a fusing step, after the electric heating element 5 is heated to reach a predetermined preheating temperature, the protective material 13 is placed on the upper mold 1 and the lower mold 2, and the unvulcanized decorative rubbers 33, 34 are provided. Unfused canvas 3
2 and the center of the uncured portion of the moving handrail 4 to which the unfused canvas 32 is connected is placed at or near the center of the lower mold 2 and the upper mold 1 and the lower mold 2 are placed in the middle. After being sandwiched by the mold 3 and pressurized with a predetermined pressing force using the fastening bolts 6, the nuts 7 and the disc spring washers 8, the temperature from the predetermined lower limit fusion temperature T 2 to the higher fusion limit temperature T 3 with the electric heating element 5. Weld while maintaining the area.

At this time, since the unvulcanized decorative rubbers 33 and 34 and the unfused canvas 32 are formed into the cross-sectional shape C of the moving handrail in the above-mentioned fusing operation, the parts B to B shown in FIG. During the period C, heating is performed for a predetermined time in a temperature range from a predetermined minimum fusion temperature T2 to a maximum fusion temperature T3 and pressurized at a predetermined pressure. At the same time, in order to prevent re-fusing of the vulcanized rubber vulcanized portion of the moving handrail 4, it is insulated by the insulating material 21 and cooled by the cooling tank 23 at the end of the molds 1 and 2, as shown in FIG. As shown in b), the temperatures of the portions A to D at both ends are lowered to the remelting limit temperature T1 or lower. At this time, as shown in FIG.
The simple vulcanized cosmetic rubber 31 which is located in the vicinity of the non-vulcanized cosmetic rubber 31 and which has not been properly fused is melted simultaneously with the operation of fusing the unvulcanized cosmetic rubbers 33 and 34 by heating at the above-mentioned temperatures T2 to T3. Then, of the vulcanized portion of the decorative rubber of the moving handrail 4, portions exceeding the remelting limit temperature T1 between the portions A and B and between the portions C and D are re-fused.

At the start of the above-mentioned fusion work,
As shown in FIG. 4, the change amount of the upper mold 1 is 0, but it is displaced as the fusion of the unvulcanized decorative rubbers 33 and 34 progresses, but is fused by the elastic bias of the disc spring washer 8. At the end time t0, the sinking can be suppressed to a small displacement amount Δh.

When the welding operation for a predetermined time is completed as described above, the bolt is cooled to a predetermined temperature, the fastening bolts 6 and the nuts 7 that have been tightened at a predetermined fastening pressure are released, and the removal bolt 22 is removed. Tighten the upper mold 1 and lower mold 2
, And the moving handrail 4 is taken out from the heating and pressing device.

In the heating and pressurizing device of the embodiment configured as described above, the upper mold 1 is displaced as the unvulcanized cosmetic rubbers 33 and 34 are fused, but the elastic spring is biased by the disc spring washer 8. By doing so, the pressing force can be maintained, so that the operator does not need to retighten a plurality of sets of the fastening bolts 6 and the nuts 7 during the manual fusion.

Further, in the heating and pressurizing device of this embodiment, the heating and pressurizing device can be easily installed by the base 9 having the same inclined surface as the inclined surface on the step 51 so that the heating and pressurizing device does not shift as in the conventional case. There is no need to apply a stopper to the base 9, and the base 9 can be easily installed on the steps 51.

Further, in the heating and pressurizing apparatus of the present embodiment, a predetermined temperature range from the lower limit temperature T2 to the upper limit temperature T3 is ensured between the portions B and C shown in FIG. By heating for a time and applying a predetermined pressure, the unvulcanized decorative rubbers 33 and 34 and the unfused canvas 32 can be formed into the cross-sectional C shape of the moving handrail 4. At the same time, the molds 1 and 2 are insulated by the insulating material 21 and cooled in a cooling tank 23 filled with water at the ends of the molds 1 and 2, thereby forming the portions A and D at both ends as shown in FIG. Each temperature is lowered to around the remelting limit temperature T1, and refusion of the vulcanized portion of the moving handrail 4 which has already been vulcanized with rubber can be prevented. By this heating method, the intermediate portion B in the longitudinal direction
The temperature range between the lower limit temperature T2 for fusion of the unvulcanized decorative rubbers 33 and 34 and the upper limit temperature T3 for fusion is kept constant between C, and the temperature distribution between the portions A and B and the portions C and D at both ends. Is substantially lower than the fusion lower limit temperature T2, and slightly exceeds the remelting limit temperature T1 near the end of the electric heating element 5. Due to this heating state, the vulcanized rubber vulcanized portion of the moving handrail 4 and the unvulcanized cosmetic rubber Since the elements 33 and 34 are fused together, uniformity can be obtained. Thus, compared to the conventional case shown in FIGS. 6 to 12 described above, the ratio of the portion exceeding the remelting limit temperature T1 is low, and the connection line and the unevenness after the heating and pressing do not need to be generated. Therefore, the efficiency of the fusion work can be improved.

In this embodiment, the case where the electric heater 5 is provided in each of the upper mold 1 and the lower mold 2 is exemplified. However, the electric heater may be provided in the middle mold 3 in the same manner.

[0041]

As described above, the first aspect of the present invention is as described above.
In the invention according to the invention, the fusion portion between the canvas of the moving handrail and the cosmetic rubber is sandwiched by the mold and heated at a predetermined fusion temperature, and the temperature rise of the cosmetic rubber is suppressed at the longitudinal end position of the mold. Therefore, it is possible to prevent the occurrence of unevenness of the decorative rubber at the end position in the longitudinal direction of the mold. Therefore, the number of times and time for fusing the decorative rubber to the canvas can be reduced,
This has the effect of improving the efficiency of the heating and pressurizing operation of the moving handrail.

Further, in the invention according to claim 2 of the present invention,
When the cosmetic rubber is fused, the pressing force of the upper mold is maintained by elastically urging the fastening bolt, nut and spring washer through the upper mold and the lower mold. It is not necessary to retighten the fastening bolts and nuts of the set. Therefore, there is an effect that the burden on the worker can be reduced and the working efficiency can be improved when heating and pressing the moving handrail.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a heating and pressurizing device for a passenger conveyor moving handrail according to an embodiment of the present invention.

FIG. 2 is a side view showing the heating and pressurizing device of the present embodiment.

FIG. 3 is a diagram illustrating an operation of heating by the heating and pressurizing device of the present embodiment.

FIG. 4 is a diagram showing a change amount of an upper mold at the time of fusion by the heating and pressing device of the present embodiment.

FIG. 5 is a side view showing a state in which the heating and pressing device of the present embodiment is installed on a step.

FIG. 6 is a longitudinal sectional view showing a conventional heating and pressurizing device for a passenger conveyor moving handrail.

FIG. 7 is a side view of the heating and pressing device of FIG. 6;

FIG. 8 is a diagram illustrating an operation of heating by a conventional heating and pressing device.

FIG. 9 is a diagram showing a change amount of an upper mold at the time of fusion by a conventional heating and pressing device.

FIG. 10 is a view for explaining a state at the time of fusing the decorative rubber.

FIG. 11 is a diagram showing a configuration of a general moving handrail provided on a passenger conveyor.

FIG. 12 is a side view showing a state where a conventional heating and pressing device is installed on a step.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper mold 2 Lower mold 3 Middle mold 4 Moving handrail 5 Electric heating element 6 Fastening bolt 7 Nut 8 Disc spring washer 9 Base 10 Heat insulator 11 Upper pedestal 12 Lower pedestal 13 Protective material 21 Insulator 22 Removal bolt 23 Cooling tank 31 Simple vulcanized cosmetic rubber 32 Unfused canvas 33 Back unvulcanized cosmetic rubber 34 Ear unvulcanized cosmetic rubber 51 Step

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kiyoshi Naganuma 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo In the Hitachi Building System Co., Ltd. (72) Inventor Yukihiro Yamaguchi 1070 Ma, Hitachinaka-shi, Ibaraki Hitachi, Ltd. (72) Inventor Koichi Hatayama 3-1-1, Sukekawacho, Hitachi City, Ibaraki Prefecture Within Hitachi Cable Co., Ltd. (72) Tetsuya Kanai 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Hitachi Building, Ltd. F-term in the system (reference) 3F321 AA02 CF01 HA06

Claims (18)

[Claims] 1. A heating and pressurizing device for a passenger conveyor moving handrail used for fusing a canvas of a passenger conveyor moving handrail to a decorative rubber, wherein a fused portion between the canvas and the decorative rubber and its vicinity are sandwiched. The upper mold, the lower mold, and the middle mold to be heated, the electric heaters respectively provided in the upper mold and the lower mold, and both ends of the upper mold, the lower mold, and the middle mold in the longitudinal direction. And an insulator provided in each of the portions, wherein the electric heating element is energized to set each temperature of the upper mold, the lower mold and the middle mold to the fusing temperature of the decorative rubber, and the upper mold, A heating and pressurizing device for a handrail moving a passenger conveyor, wherein heat generation is blocked by the insulator at end positions of longitudinal ends of a lower mold and a middle mold by the insulator. 2. A heating and pressurizing device for a passenger conveyor moving handrail used for fusing a canvas of a passenger conveyor moving handrail to a decorative rubber, wherein the welding portion of the canvas and the decorative rubber is sandwiched and pressed. A mold and a lower mold, and a fastening bolt, a nut and a spring washer provided on each of the upper and lower molds. By moving the canvas and the decorative rubber through a lower mold before the fusion, the fluctuation of the pressing force due to the fusion between the canvas and the decorative rubber is suppressed, so that the passenger conveyor moves. Handrail heating and pressing device. 3. The heating and pressurizing device for a handrail of a passenger conveyor according to claim 1, wherein the insulator is formed of a composite material having a low thermal conductivity. . 4. The heating and pressurizing device for a handrail for moving a passenger conveyor according to claim 1, wherein a temperature of a joint between the insulator and the mold is set to a fusion temperature of the decorative rubber. A heating and pressurizing device for a handrail moving a passenger conveyor. 5. The heating and pressurizing device for a handrail for moving a passenger conveyor according to any one of claims 1, 3 and 4, wherein the makeup is provided at longitudinal ends of the upper mold, the lower mold and the middle mold. A heating and pressurizing device for a handrail moving a passenger conveyor, wherein the length of the insulator is set so that the temperature of rubber is lower than the fusion temperature. 6. The heating and pressurizing apparatus for moving a handrail of a passenger conveyor according to claim 1, wherein the upper mold and the lower mold are covered with a heat insulating material at the time of heating, and the heat insulating material is covered with the upper mold and the lower metal at the time of cooling. A heating and pressurizing device for moving a handrail on a passenger conveyor, which is removed from the mold. 7. The heating and pressurizing apparatus for moving a handrail of a passenger conveyor according to claim 6, wherein the electric heating element and the heat insulating material provided in the upper mold and the lower mold, respectively, are combined with the upper mold and the lower mold. And a pressurizing device for a handrail moving a passenger conveyor, wherein the upper and lower dies are attached to the upper and lower pedestals respectively. 8. The heating and pressurizing device for a handrail for moving a passenger conveyor according to claim 1 or 2, wherein the die is
It is formed along the longitudinal direction of the moving handrail, and the length of the mold is set to correspond to the sum of the length of the fused portion and the length of the non-fused portion between the canvas and the decorative rubber. Heating and pressurizing equipment for moving handrails on passenger conveyors. 9. The heating and pressurizing device for moving a handrail of a passenger conveyor according to claim 1 or 2, wherein the electric heating element is provided only in a portion corresponding to a fusion-bonded length between the canvas and the decorative rubber. A heating and pressurizing device for moving a handrail on a passenger conveyor. 10. The heating and pressurizing device for a passenger conveyor moving handrail according to claim 2, wherein said spring washer comprises a disc spring washer. 11. The heating and pressurizing device for a handrail for moving a passenger conveyor according to claim 1 or 2, further comprising a detachment bolt for facilitating detachment of the upper mold and the lower mold after fusion. A heating and pressurizing device for a handrail moving a passenger conveyor. 12. The heating and pressurizing device for a handrail for moving a passenger conveyor according to claim 1 or 2, wherein a base having the same inclination angle as the inclination angle of the step is installed at one end. Heating and pressing device for moving handrails. 13. The heating and pressurizing device for moving a handrail of a passenger conveyor according to claim 4, wherein a protective material having the same shape as that of the mold is provided on each surface of the insulating material and the mold. A heating and pressurizing apparatus for a handrail moving a passenger conveyor, wherein an insulating material and the mold are flush with each other and the surface strength of the mold is improved. 14. The passenger conveyor moving handrail heating and pressurizing device according to claim 13, wherein said protective member is a thin sheet having a low thermal conductivity and a small heat transfer area. Heating and pressing device for moving handrails. 15. The heating and pressurizing device for a handrail for moving a passenger conveyor according to claim 14, wherein the protective material is a SUS material or a PET film. 16. The heating and pressurizing device for a passenger conveyor moving handrail according to claim 13, wherein the protective material has a surface roughness for obtaining a glossiness of the decorative rubber. Heating and pressurizing device for moving handrails on passenger conveyors. 17. The heating and pressurizing apparatus for moving a handrail of a passenger conveyor according to claim 16, wherein a plating process is performed on each surface of the protective material and the mold, the plating process having a surface roughness for obtaining glossiness of the decorative rubber. A heating and pressurizing device for a handrail moving on a passenger conveyor, which is provided. 18. A heating and pressurizing device for a passenger conveyor moving handrail used for fusing a canvas of a passenger conveyor moving handrail to a decorative rubber, wherein a fused portion between the canvas and the decorative rubber and its vicinity are sandwiched. An upper mold to be heated, a lower mold and a middle mold, and an electric heating element provided in each of the upper mold and the lower mold, and a protective material provided on each surface of the upper mold and the lower mold, respectively. An insulator provided at both ends in the longitudinal direction of the upper mold, the lower mold, and the middle mold to suppress a rise in temperature during fusion; and a length of the upper mold, the lower mold, and the middle mold. Cooling tanks provided at both ends in the direction, and containing a cooling medium, wherein the electric heating element is energized and the respective temperatures of the upper mold, the lower mold, and the middle mold are fused with the decorative rubber. Temperature and the upper mold,
Heat generation is blocked by the insulator at the positions of the longitudinal ends of the lower mold and the middle mold, and the insulator and the protective material are cooled by the cooling tank to be lower than the fusion temperature of the decorative rubber. A heating and pressurizing device for a handrail moving a passenger conveyor.