JPH07195565A - Manufacture device of hand belt for passenger conveyor - Google Patents

Abstract

PURPOSE:To manufacture a hand belt of high quality with which snaking does not be generated in a tension member and work efficiency is excellent by providing a support device which pinches side ends of a canvas together with a placing stage and has an endless rotary body movable with proceeding of the canvas. CONSTITUTION:There is provided a support device 14 for supporting both side ends of a bottom layer canvas 2a. The support device 14 has a chain 17 as an endless rotary body to be suspended on a driving wheel 15 and a coupled driving wheel 16. The chain 17 is provided with a plurality of claws 18 fixed thereto. The both side ends of the bottom layer canvas 2a are pinched by tips 18a of the claws 18 and a connecting part of a C-shaped part 6a and a lower part 6b of a placing stage, so that a C-shaped form of the bottom layer canvas 2a is held. Further, a claw guide 19 is provided within a range to pinch the both side ends of the bottom layer canvas 2a so as to prevent the claws 18 from turning reversely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a hand belt for a passenger conveyor such as an escalator or an auto line.

[0002]

2. Description of the Related Art Conventionally, there is a passenger conveyor such as an escalator or an automatic line that moves passengers by placing them on steps. The passenger conveyor moves endlessly with the step of placing and moving the passenger, and is provided with a handrail or hand belt for gripping the passenger without losing balance.

As shown in FIG. 6, the hand belt 1 is formed by sandwiching a plurality of tension members 3 such as steel wires between a plurality of belt-shaped canvases 2 for reinforcement and having a substantially C-shaped cross section. Both side ends of the lower layer canvas 2a are folded back so as to cover the side ends of the upper layer canvas 2b to form an integrated core body 4, and the core body 4 is formed.
The decorative rubber layer 5 is attached to improve the appearance, and both ends are connected to each other to form a loop. The hand belt 1 is used by being sandwiched and attached to a driving roller or the like that is endlessly rotated and driven along with steps.

In order to manufacture the core body 4 of such a hand belt for a passenger conveyor, as shown in FIG. 7, a mounting table 6 having a substantially C-shaped section in the upper portion is coated with an adhesive only on the upper surface. The lowermost layered canvas 2a is placed, and the uppermost layered canvas 2b having both surfaces coated with an adhesive is laminated on the lowermost layered canvas 2a by sandwiching a tension member (not shown) (see FIG. 7).
(A)), the heating table 6 is heated by rollers (not shown)
It is pressed to form a substantially U-shaped cross section (FIG. 7B). When the cross section is substantially U-shaped, the side end of the lowermost canvas 2a is folded back (see FIG. 7).
(C)) After that, the core 4 is formed by bending with a roller (not shown) until it has a substantially C-shaped cross section (FIG. 7D).
The core body 4 formed in this way releases the residual stress,
The bending of the end part returns and deforms over time. For this reason, when the uncured decorative rubber material is placed on the core body 4 and placed in the mold, it cannot be housed in the mold.
Since the folded-back portion of the lowermost layer 2a does not have an adhesive, the core body 4 and the decorative rubber material are taped and fixed so as to be in close contact with the decorative rubber material, and at the same time, the shape fits in the mold.

In such taping, if the strength of the taping is weak, it cannot be placed in the mold, and if it is too strong, the canvas is bent in the vertical direction due to the pressure from the left and right, and the tension member 3 is sandwiched. If the canvas is separated and the tension member 3 is not fixed at a predetermined position, the tension member 3 may meander, and in such a case, the strength may be deteriorated.

In order to prevent the deterioration of the quality caused by such manufacturing process, the lowermost layer 2a of the lowermost layer 2a is pressed against the C-shaped portion 6a of the mounting table 6 by a roller (not shown). After forming the end portion along the lower portion 6b of the mounting table 6 into a C-shaped cross section, and forming the C-shaped cross section while supplying the upper layer canvas 2b one by one onto it, the bottom layer canvas 2
The end of a was folded back to cover the end of the upper layer canvas 2b.

[0007]

However, in such a manufacturing process, if the canvas is formed into a substantially C-shaped cross section while advancing the canvas, the lowermost-layer canvas 2a receives tension, and as shown in FIG. The lowermost layered canvas 2a cannot hold the C-shaped cross section unless the end portions are supported by the support 6c or the like. However, when friction occurs between the lowermost-layer canvas 2a and the support 6c, it becomes a running resistance and causes deformation, displacement, wrinkles, and the like.

For this reason, since it is impossible to form the canvas while advancing the canvas, the canvas of a predetermined length is supplied on the mounting table, and the stacking and forming are carried out in a stopped state, and the part where the formation is completed is wound up. Then, the unformed canvas was sequentially supplied to the mounting table. Moreover, this operation had to be repeated for each of the laminated canvases, resulting in extremely poor work efficiency.

In order to solve the above-mentioned drawbacks, the present invention aims to provide an apparatus for manufacturing a hand belt for a passenger conveyor, which does not meander in the tension member, has good working efficiency, and can manufacture a hand belt of good quality. And

[0010]

In order to achieve the above object, a manufacturing apparatus for a hand belt for a passenger conveyor according to the present invention has a substantially cross-section in which belt-shaped both side end portions are bent and a C-shaped cross section is placed. A pair of endless rotating bodies that are equipped with a mounting table having a C-shaped portion and a plurality of claw portions that sandwich the side end of the canvas with the mounting table and that are suspended by drive wheels and driven wheels and that move as the canvas advances. And a supporting device provided with.

[0011]

The lowermost layer is placed on a placing table having a C-shaped portion on the upper part, and is pressed by a roller or the like while advancing the canvas to form a substantially C-shaped cross section, and the entire length is formed into a substantially C-shaped. To do. When one sheet of upper-layer canvas is supplied on the lowermost-layered canvas formed in a substantially C-shape and is formed in a substantially C-shaped cross section while proceeding in the same manner, both side ends of the lowermost-layered cloth are substantially C-shaped in cross section. Is supported by a supporting device so as to hold The supporting device includes endless rotating bodies suspended on driving wheels and driven wheels, respectively, and the bottom layer canvas has a cross section of approximately C by sandwiching both end portions with a plurality of claw portions fixed to the endless rotating bodies and a mounting table. It is possible to retain the character shape. Since the endless rotating body moves along with the movement of the canvas, the canvas does not rub against the claws and is not deformed, displaced, or wrinkled. Therefore, a high-quality passenger conveyor hand belt can be efficiently manufactured.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment to which a manufacturing apparatus for a hand belt for a passenger conveyor according to the present invention is applied will be described with reference to the drawings. Manufacturing apparatus S for hand belt 1 for passenger conveyor shown in FIG.
Is provided with a belt-shaped canvas 2 and a supply unit 11 that supplies the tension member 3 so as to be sandwiched between the canvas 2 and a core body molding unit 12 that forms the band-shaped canvas 2 into a substantially C-shaped cross section. .

The supplying section 11 supplies the lowermost layer canvas 2a having an adhesive applied only on the upper surface thereof, and the lowermost layer cloth supplying section 11a.
And an upper-layer canvas supply section 11b for supplying the upper-layer canvas 2b whose both surfaces are coated with an adhesive, and a tension member supply section 11c for supplying the tension member 3. As shown in FIG. 2, the bottom layer canvas 2a and the top layer canvas 2b respectively supplied from the bottom layer canvas supply portion 11a and the top layer canvas supply portion 11b have an upper portion having a substantially C-shaped section 6a and a C-shaped portion 6a. A guide 13 is provided so that the canvas that is supplied on the mounting table 6 that is formed by the lower portion 6b that fixes the sheet and the supplied canvas is placed at a fixed position.

The core forming section 12 is provided with a large number of rollers, and by pressing the strip-shaped canvas supplied onto the C-shaped section 6a of the mounting table 6 against the C-shaped section 6a, the section is made into a substantially C-shaped section. To be formed. As shown in FIG. 2, the core body molding portion 12 includes a flat roller 12a, a bending roller 12b, and a bending roller 12c, and presses the laminated canvas by air pressure, hydraulic pressure, or the like. The core forming portion 12 is a rail 12 laid in the traveling direction of the canvas.
It is capable of reciprocating on d, and when the canvas is formed into a substantially C-shaped cross section while moving according to the traveling direction of the canvas, it is repeated to return to an unprocessed position of the canvas and perform molding.

As shown in the cross-sectional view of FIG. 3 and the side view of FIG. 4, the supporting device 14 for supporting both end portions 21a of the lowermost layer canvas 2a is provided in the moving range of the core body molding portion 12 as described above. Is provided. The support device 14 is a chain 1 which is an endless rotating body suspended from a driving wheel 15 and a driven wheel 16.
7, a plurality of claw portions 18 (FIG. 5) are fixed to the chain 17. The tip end 18a of the claw portion 18 and the joint between the C-shaped portion 6a and the lower portion 6b of the mounting table sandwich the both end portions 21a of the bottom layer canvas 2a, and the substantially C-shaped bottom layer canvas 2a is held. It is like this. Further, the claw portion guides 19 are provided in a range that holds both side end portions 21a of the lowermost layer canvas 2a so that the claw portions 18 do not turn over. The claw portion guide 19 is the claw portion 18
It is made of a material having a small friction coefficient so that it does not affect the movement of the claw portion 18. In order to prevent the chain 17 from bending, the chain guide 20
It is provided in the running part of. In addition, an auxiliary roller (not shown) is provided immediately before the supporting device 14 to assist in supporting both side end portions 21a of the lowermost layer canvas 2a.

Further, a winder 22 for winding a canvas having a substantially C-shaped cross section is provided to control the progress of the canvas. In order to form the core body using the passenger conveyor handbelt manufacturing apparatus S as described above, when the lowermost-layer canvas 2a is supplied from the lowermost-layer canvas supply unit 11a with the traveling speed thereof adjusted by the winder 22. The lowermost canvas 2a is guided by the guide 13 and accurately placed on the placing table 6. The flat roller 12a and the bending roller 1 of the core body forming portion 12 that moves on the rails 12d along with the movement of the bottom layer canvas 2a.
2b, the pressing roller 12c presses the mounting table 6 to form a substantially C-shaped cross section. When it is formed into a substantially C-shaped cross section, it returns to the untreated portion and is repeatedly formed into a substantially C-shaped cross section, and the entire length of the bottom layer canvas 2a is formed into a substantially C-shaped cross section.
The bottom layer canvas 2a is wound around the winder 22 at one end and then set in the bottom layer canvas supply section 11a.

After that, the bottom layer canvas 2a formed in a substantially C-shaped cross section is supplied from the bottom layer canvas supply part 11a onto the mounting table 6, and the belt-shaped canvas 2b is supplied from the top layer canvas supply part 11b onto the bottom layer canvas 2a. Is supplied to the core body supply unit 12 after being guided by the guide 13. Similarly, the core supply unit 12 moves on the rail 12d to form the moving upper layer canvas 2b in a substantially C-shaped cross section. At this time, an adhesive is applied to the contact surface between the lowermost-layer canvas 2a and the upper-layer canvas 2b, and they are formed into a substantially C-shaped cross section while being bonded. Further, both end portions of the lowermost-layer canvas 2a are sandwiched between the claw portions 18 of the supporting device 14 and the mounting table 6, and the sectional shape thereof is maintained. The claw portion 18 is moved at the same speed as the movement of the canvas by the rotation of the drive wheel 15 and does not cause friction with the side end portion of the lowermost layer canvas 2a. Moreover, the claw portion 18 is supported by the claw portion guide 19 so as not to be inverted, and the chain 17 is fixed to the chain guide 20.
Since it is supported by, the bottom layer canvas 2 is surely prevented from spinning.
A can be supported, and deformation and displacement do not occur. Therefore, the core body can be formed in an accurate shape. Bottom layer canvas 2
The upper-layer canvas 2b is laminated on a and has a substantially C-shaped cross section, and is wound by the winder 22.

The lowermost canvas 2a in which the upper canvas 2b is laminated
Is again set in the lowermost-layer canvas supply section 11a, and the belt-shaped upper-layer canvas supplied from the lower-layer canvas supply section 11a and the upper-layer canvas supply section 11b is placed and supplied.
Is delivered to a more precise home position. Belt-shaped upper layer canvas 2b
Is similarly formed in the core molding portion 12 into a substantially C-shaped cross section.
When a predetermined canvas is supplied from the tension member supply unit 11c, the tension member is supplied on the canvas and is sandwiched and formed. When the last upper-layer canvas is laminated and formed, both end portions of the lower-layer canvas 2a are rollers (not shown).
The core body 4 having a predetermined shape is formed by being bent and integrated so as to cover the end portion of the upper layer canvas.

The core body 4 thus formed into a predetermined shape.
A decorative rubber material is extruded by an extruder (not shown) and placed on a mold and heated and vulcanized to form a passenger conveyor hand belt. In this way, the core body formed in a predetermined shape for each layer does not deform with time, and when the decorative rubber material is cured, it cannot be installed in the mold, and the tension member No meandering occurs, and high quality products can be manufactured with high yield.

The above-described manufacturing apparatus for a passenger conveyor hand belt is an explanation of one embodiment of the present invention, and the present invention is not limited to this. That is, the manufacturing device of the hand belt for passenger conveyors may be provided with an extruder for a decorative rubber material so that a decorative rubber layer can be formed by a series of lines.

[0021]

As is apparent from the above description, the apparatus for manufacturing a handbelt for a passenger conveyor according to the present invention can support the side end of the advancing lowermost-layer canvas while holding it in a substantially C-shaped cross section without friction. Since the support device is provided, it is possible to form each layer while the canvas is moving, it is possible to form the core body into a certain shape with high quality, and it is possible to efficiently manufacture the core body, and the core body can be manufactured over time without taping. Since it does not deform, the manufacturing process can be reduced and it is economical.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a part of a core body molding portion according to an embodiment of the present invention.

FIG. 3 is a sectional view showing a main part of an embodiment of the present invention.

FIG. 4 is a side view showing a main part of an embodiment of the present invention.

FIG. 5 is a perspective view showing a main part of an embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a conventional hand belt.

FIG. 7 is a diagram showing a method of manufacturing a conventional hand belt.

FIG. 8 is a diagram showing a method of manufacturing a conventional hand belt.

[Explanation of symbols]

 2 ‥ ‥ Cloth 21a ‥ ‥ Side edge 4 ‥ ‥ Core body 6 ‥ ‥ Loading table 6a ‥ ‥ Approximately C-shaped part 14 ‥ ‥ Support device 15 ‥ ‥ ‥ Drive wheel 16 ‥ ‥ Wheel 17: Chain (endless rotating body) 18: Claw S: Machine for manufacturing hand belt for passenger conveyor

Claims (1)

[Claims] 1. A mounting table having a substantially C-shaped cross-section part on which both end portions of a belt-like shape are bent and a substantially C-shaped cross section is mounted, and a plurality of sandwiching the side end parts of the canvas together with the mounting table. And a supporting device having a pair of endless rotating bodies that are suspended by driving wheels and driven wheels and that move with the progress of the canvas, and a manufacturing apparatus for a handbelt for a passenger conveyor. .