JPH06155626A - Manufacture of passenger conveyor handrail and connecting jig for manufacture of it - Google Patents

Abstract

PURPOSE:To improve productive efficiency, quality of product, and reduce manufacturing cost by applying a fixed tension on the whole length of a core body. CONSTITUTION:In order to hold tension of a core body 4 to be generated at manufacturing line on the whole length of the core body 4, tension holding belts 21A and 21B to which the head and termination of the core body 4 and a belt lacing 22 are fixed are respectively connected to a flexible tension jig 23 having a check member 23a for checking a tension member 3 and a connecting member 23b for axially mounting the belt lacing 22 with a fastening pin 25. Thus, a fixed tension can be applied to the whole length of the core body 4, so that a passenger conveyor handrail having stable quality can be manufactured with favorable yield.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a handrail for a passenger conveyor such as an escalator or an electric walkway and a connecting jig for manufacturing, and particularly to a passenger rail for manufacturing a handrail for a passenger conveyor with stable quality with a good yield. The present invention relates to a manufacturing method of a handrail for a conveyor and a connecting jig for manufacturing.

[0002]

2. Description of the Related Art Conventionally, there is a passenger conveyor such as an escalator or an electric walkway that moves passengers by placing them on steps. The passenger conveyor is provided with handrails or handrails for endless movement and gripping of the passenger without losing balance, as well as the step of placing and moving the passenger.

As shown in FIG. 4, the handrail 1 has a belt-like shape having a substantially C-shaped cross section in which a rubber material 5a is coated on a core body 4 which is a laminated body of canvas 2 with tension members 3 interposed therebetween. In addition, it is used by being attached to a mechanism that is endlessly rotationally driven. As shown in FIG. 5, the method of manufacturing the handrail for a passenger conveyor having such a structure, as shown in FIG. The rubber material 5a and the core body 4 are pressed against each other by the device 34. At this time, in order to apply a constant tension to the canvas 2 forming the core body 4, a take-up device 35 installed downstream of the crimping device 34 for pulling the handrail 1 at a constant speed and the rubber material 5a are used for the core body 4. The tension holding device 32 installed on the upstream side of the pushing device 33 for pushing upward
While using the and to generate back tension, canvas 2
A constant tension is applied to.

As a result, the shrinkage and slack of the canvas 2 can be suppressed, and the straightness to the extrusion device 33 can be maintained in the core body 4. Therefore, the meandering or the like of the tension member 3 caused by the shrinkage of the canvas 2 can be prevented. Trouble can be prevented.

[0005]

However, in such a manufacturing method, at the tip portion of the core body 4, tension must be applied to the core body 4 unless a rope or the like is fixed to the tip and guided to the position of the take-up device 35. Since it is not applied to the core body 4, the canvas 2 forming the core body 4 contracts, and the core body 4 having ropes or the like fixed to each device of the manufacturing line is put through the core body 4, resulting in deterioration of workability. It was

On the other hand, when the terminal end of the core body 4 is pulled out from the position of the extruder 33, the tension is not applied to the core body 4 like the tip end part, and the canvas 2 forming the core body 4 contracts. Occurs. When the canvas 2 contracts, the tension member 3 located inside the canvas 2 cannot contract, so that the tension member 3 may separate from the canvas 2 and cause trouble such as meandering. As a result, the core material 4 cannot be uniformly coated with the rubber material 5a and cannot be used as a product.

In order to solve such a problem, a so-called extra length corresponding to the distance between the tension holding brake 32 and the take-up machine 35 is provided at the tip and the end of the core body 4 and used as a product in a later step. There is a method of cutting the extra length to obtain the actual length. However, there are problems in terms of improving production efficiency and reducing product cost.

[0008]

[Objective] The present invention has been made to solve such conventional problems, and in a handrail manufacturing line, by applying a constant tension over the entire length of the core, the production efficiency can be improved. It is an object of the present invention to provide a manufacturing method of a handrail for a passenger conveyor and a manufacturing connection jig that can improve the quality of the product and reduce the product cost.

[0009]

SUMMARY OF THE INVENTION A method of manufacturing a handrail for a passenger conveyor according to the present invention comprises a rubber material on a core body while applying a constant tension to the core body, which is a laminate of canvas with tension members interposed therebetween. Is a method for manufacturing a handrail for a passenger conveyor by extruding a core body and a rubber material, wherein the tip and the end of the core body and the tension holding belt are each substantially the same thickness as the core body. It is flexibly connected by a connecting jig for manufacturing the blade and holds the tension over the entire length of the core.

Further, the connecting jig for manufacturing a handrail for a passenger conveyor according to the present invention manufactures a handrail for a passenger conveyor by extruding a rubber material onto a core body which is a laminated body of canvas with tension members interposed. A manufacturing connection jig that is fixed to both ends of the tension member at this time, and has a tension holding belt and a bendable portion that is fixed to the tip of the tension holding belt and has locking portions that detachably lock the tension member. And a connecting portion.

[0011]

In order to maintain the tension of the core body generated in the production line over the entire length of the core body, the tension member is fixed to the tip and the end of the core body and the tension member is fixed to the tip of the tension member belt. And a bendable connecting part having a locking part for locking. As a result, a constant tension can be applied to the front end and the rear end of the core, so that the entire length of the surface of the core can be uniformly covered with the rubber material.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for manufacturing a handrail for a passenger conveyor and a manufacturing connecting jig of the present invention will be described below with reference to the drawings. The manufacturing line 10 for a passenger conveyor handrail shown in FIG.
And a decorative rubber layer covering portion 12 for covering the core body 4 with the rubber material 5a
And a winding unit 13 for winding the core body 4 coated with the decorative rubber material 5, that is, the handrail 1.

The supply unit 11 is a supply drum 11A in which a core body 4 having a substantially C-shaped cross section is wound with a laminated body of canvas 2 in which a plurality of tension members 3 are mounted, and the supply drum 11A is rotatable. Support stand 11
B and. The supply stand 11B includes a brake device (not shown) so that the core body 4 does not sag when the core body 4 is supplied to the decorative rubber layer coating portion 12.

The decorative rubber layer coating portion 12 includes a main body (not shown) equipped with a screw or the like for feeding the rubber material 5a forming the pre-kneaded decorative rubber layer 5, and a rubber material 5a delivered from the main body. An extruding device 14 having a head (not shown) for extruding onto the core 4 and a crimping device 15 for crimping the rubber material 5a to the core body 4 are provided on the downstream side of the extruding device 14. Immediately after being extruded by the extruding device 14, the rubber material 5a is not adhered to the core body 4 and has a slight pulsation due to the running motion of the core body 4, and the thickness is uniform when a certain distance is moved after extrusion. Therefore, the pressure bonding device 15 provided at a position where the wall thickness becomes uniform,
The rubber material 5a is formed to have a more uniform thickness.

In order to uniformly coat the rubber material 5a on the core body 4 by using the extrusion device 14 and the pressure bonding device 15, the pressure bonding device 15 is used in order to keep the coating speed of the rubber material 5a constant. The take-up device 16 having a take-up mechanism installed on the downstream side of the canvas, and the canvas 2 corresponding to the speed of the take-up device 16.
In order to apply a constant tension to the above, a tension applying device 17 having a brake mechanism installed on the upstream side of the extrusion device 14 is used.

On the downstream side of the take-up device 16, the surface of the rubber material 5a coated on the core body 4 is protected, or the adhesive force between the rubber material 5a and the core body 4 is increased and the shape of the handrail 1 is increased. A coating device 18 is provided which taps with plastic tape to prevent changes. Further, a winding device 13 for winding the molded handrail 1 is provided at the most downstream part of the passenger conveyor handrail manufacturing line 10. The winding device 13 temporarily winds the handrail 1 coated with the rubber material 5a in an unvulcanized state, and appropriately winds the rubber material 5a by a heating device.
3A and a winding machine 13B for rotating the winding drum 13A in a fixed direction.

In order to economically produce on such a passenger conveyor handrail production line 10, FIG.
A manufacturing connecting jig as shown in FIG. The manufacturing connecting jig includes a tension holding belt 21 having a width and a thickness that are substantially equal to those of the core body 4, and a belt lacing 22 that is a connecting portion fixed to the tip of the tension holding belt 21 and formed with a plurality of convex portions 22a. , A pulling jig 23 that is a connecting portion pivotally attached to the core body 4, and a connecting pin 25 that connects the belt lacing 22 and the pulling jig 23. Connect to the end. Tension holding belt 2
The end of 1 is the supply drum 11A and the winding drum 13A.
Fixed to.

As shown in FIG. 1B, the tension holding belt 21 is fixed to the supply drum 11A, and has a first tension holding belt 21A having a length longer than the distance from the supply drum 11A to the extruder 14. , Winding drum 1
The second tension holding belt 2 fixed to 3A and having a dimension longer than the distance from the winding drum 13A to the extrusion device 14
Two types, 1B, are used. Such tension holding belts 21A and 21B are made of nylon sling or the like, which is easily bent when wound around the supply drum 11A or the take-up drum 13A, and has little elongation with respect to tension.

The pulling jig 23 is a locking member 2 which is a locking portion.
3a and the connecting member 23b are axially mounted by a pin or the like. This allows the pulling jig 23 to be easily bent when wound around the supply drum 11A or the winding drum 13A. The locking member 23a locks a plurality of tension members 3 which are components of the core body 4, and a crimp sleeve 24 which is a locking portion is crimped to the end of the tension member 3, and the crimp sleeve 24
The engaging member 23a is provided with a slit for engaging with the. At this time, the tension member 3 projects from the end surface of the canvas 2 by a predetermined length, and the end of the canvas 2 and the tension member 3 are fixed by the tack members 6.

The connecting member 23b is provided with a notch so that the convex portion 22a of the belt lacing 22 can be easily fitted, and the convex portion 22a and the connecting member 23b are alternately fitted to each other by a connecting pin. The core body 4 and the tension holding belts 21A and 21B can be connected to each other by axially attaching a certain fixing pin 25. With this, in a state in which a constant tension is applied to the tip and the end of the canvas 2 forming the core body 4,
Since the entire length of the surface of the core body 4 can be uniformly covered with the rubber material 5a, the production efficiency can be improved and the quality of the product can be improved.

A belt lacing 22 which is a connecting jig for manufacturing a handrail for a passenger conveyor, and a locking member 23.
The pulling jig 23 configured by a and the connecting member 23b is the canvas passing portion 26a of the die 26 provided in the head that pushes the rubber material 5a onto the core body 4 in a connected state as shown in FIG. It has a thickness that allows easy passage.

In order to manufacture the handrail 1 by the passenger conveyor handrail manufacturing line 10 using the passenger conveyor handrail manufacturing apparatus configured as described above, the belt lacing 22 is fixed to the supply drum 11A. The end of the tension holding belt 21A is fixed. In addition, the canvas 2 and the pressure-bonding sleeve 24 protruding from the canvas 2
At the end of the core body 4 composed of the tension member 3 which is crimped, the locking member 23a of the tension jig 23 is hooked and pivotally attached to the crimp sleeve 24 of the tension member 3.

The belt lacing 22 and the connecting member 23b of the pulling jig 23 are fitted to each other and the fixing pin 25 is attached.
By axially attaching the tension holding belt 21A and the core body 4
Connect and. In a state where the tension holding belt 21A and the core body 4 are connected, the core body 4 is wound around the supply drum 11A by a predetermined length, and cut at a portion of a length required as a product to supply the drum 11A. The end of the core body 4 is fixed to.

On the other hand, a tension holding belt 21 having a belt lacing 22 fixed to the winding drum 13A of the winding device 13.
The end of B is fixed, and the tension holding belt 2 is provided in the order of the coating device 18, the take-up device 16, the pressure bonding device 15, and the extrusion device 14.
Insert 1B. After the supply drum 11A around which the core body 4 is wound is attached to the supply stand 11B,
The locking member 23a of the tensioning jig 23 is hooked and pivotally attached to the pressure-bonding sleeve 24 of the tension member 3 forming the wound core body 4.

A pulling jig 23 pivotally mounted on the core 4 wound around the supply drum 11A and a tension holding belt 21B inserted to the position of the pushing device 14 are fitted to each other to stop the pin. The tension holding belt 21B and the core body 4 are connected by axially attaching 25. Next, with the tension applying device 17 activated to apply tension to the core body 4,
The take-up device 16 and the winder 13B are activated to feed the tip of the core body 4 to the center of the extrusion device 14, and the extrusion device 14 is activated to cover the surface of the core body 4 with the rubber material 5a. At this time, a constant tension has already been applied to the tip of the core body 4, so that the rubber material 5a can be uniformly coated.

After the end of the core 4 passes through the extrusion device 14, the extrusion device 14 is stopped to stop the supply of the rubber material 5a, and when the end of the core 4 reaches the winding drum 13A, it is used for the passenger conveyor. The handrail production line 10 is stopped. At this time, while the end of the core body 4 is passing through the extrusion device 14, a constant tension is still applied to the core body 4, so that the rubber material 5a can be uniformly coated.

As a result, a constant tension can be applied to the tip and the end of the canvas 2 forming the core body 4, so that the entire length of the surface of the core body 4 can be uniformly covered with the rubber material 5a. After the production line 10 is stopped, the pulling jig 23 located at the end of the handrail 1 and the retaining pin 25 axially attached to the belt lacing 22 are pulled out to separate the core body 4 from the tension holding belt 21A. The winding drum 13A on which the handrail 1 having a desired size is wound is replaced with an empty winding drum 13A, and if the handrail 1 is further manufactured, the same operation as described above is repeated.

In this embodiment, tension holding belts 21A and 21B are used.
The belt lacing 22 was used to connect the core body 4 with the core body 4, but the first connecting member is not limited to this, and if the belt lacing 22 and the pulling jig 23 can be rotatably operated when connected. Any manufacturing connection jig may be used.

[0029]

According to the manufacturing method of the passenger conveyor handrail and the manufacturing connecting jig of the present invention, the manufacturing connecting jig is connected to the tip and the end of the core body in the manufacturing line of the passenger conveyor handrail. As a result, a constant tension can be applied over the entire length of the core body composed of the canvas and the tension member, so that the entire length of the surface of the core body can be uniformly covered with the rubber material. This makes it possible to improve product quality and reduce product cost. Further, since the thickness of the manufacturing jig is thin, it is possible to speed up the work of passing the core body to which the connecting jig is connected to each device of the manufacturing line.

[Brief description of drawings]

FIG. 1 is an embodiment of a method for manufacturing a handrail for a passenger conveyor and a connecting jig for manufacturing according to the present invention, in which (a) is a detailed view of a manufacturing connecting jig using the same embodiment, and (b). FIG. 3 is an explanatory view of a manufacturing connection jig and a core body used in the same embodiment.

FIG. 2 is an explanatory cross-sectional view of a manufacturing connecting jig used in the same embodiment.

FIG. 3 is an explanatory diagram of a manufacturing line of a passenger conveyor handrail.

FIG. 4 is a cross-sectional view of a passenger conveyor handrail.

FIG. 5 is an explanatory view of a production line using a conventional method for producing a handrail for a passenger conveyor.

[Explanation of symbols]

 21 ... Tension holding belt 21A ... First tension holding belt 21B ... Second tension holding belt 22 ... Belt lacing (connecting portion) 22a ... Convex portion 23 ... Tension jig (Connecting part) 23a ... Locking member (locking part) 23b ... Connecting member 24 ... Crimping sleeve (locking part) 25 ... Locking pin

Claims (2)

[Claims] 1. A passenger is obtained by extruding a rubber material onto the core body while applying a constant tension to the core body, which is a laminated body of canvas having tension members, and press-bonding the core body and the rubber material. A manufacturing method for manufacturing a handrail for a conveyor, wherein the tip end and the terminal end of the core and a tension holding belt are flexibly connected by a manufacturing connection jig having a thickness substantially equal to that of the core. Then, the tension is maintained over the entire length of the core body, and a method for manufacturing a handrail for a passenger conveyor, comprising: 2. A manufacturing connecting jig fixed to both ends of the tension member when a rubber material is extruded onto a core body which is a laminated body of canvas in which tension members are mounted to manufacture a handrail for a passenger conveyor. A passenger, characterized by comprising: a tension holding belt; and a bendable connecting portion fixed to a tip of the tension holding belt and having a locking portion for removably locking the tension member. Connecting jig for manufacturing handrails for conveyors.